阅读说明：本技术 工业物联网中的数据协作处理方法 (Data cooperation processing method in industrial Internet of things ) 是由 王洋 陈小娟 于 2021-07-15 设计创作，主要内容包括：本发明公开一种工业物联网中的数据协作处理方法,包括：第二通信节点向第一通信节点反馈第一信道状态信息、定位参考信号到达时间信息和到达角度信息,第一通信节点激活与第二通信节点的可能位置距离最近的X个第三通信节点和Y个第五通信节点,第二通信节点发送上行探测参考信号,Y个第五通信节点接收上行探测参考信号,从Y个第五通信节点中选择Z个第五通信节点,第一通信节点对N个数据比特进行调制,第一通信节点和X个第三通信节点将多个调制符号发送给第二通信节点和Y个第五通信节点,第二通信节点和Z个第五通信节点对处理后得到的N个数据比特校验,生成反馈信息给第一通信节点。本发明可以提高数据信道传输的可靠性和效率。(The invention discloses a data cooperation processing method in an industrial Internet of things, which comprises the following steps: the method comprises the steps that a second communication node feeds back first channel state information, positioning reference signal arrival time information and arrival angle information to a first communication node, the first communication node activates X third communication nodes and Y fifth communication nodes which are closest to the possible position of the second communication node, the second communication node sends uplink detection reference signals, the Y fifth communication nodes receive the uplink detection reference signals, Z fifth communication nodes are selected from the Y fifth communication nodes, the first communication node modulates N data bits, the first communication node and the X third communication nodes send a plurality of modulation symbols to the second communication node and the Y fifth communication nodes, and the second communication node and the Z fifth communication nodes check the N data bits obtained after processing to generate feedback information to the first communication node. The invention can improve the reliability and efficiency of data channel transmission.)

1. A data cooperation processing method in an industrial Internet of things is characterized by comprising the following steps:

a second communication node receives a downlink channel state information reference signal and a positioning reference signal sent by a first communication node, generates first channel state information based on the downlink channel state information reference signal, generates positioning reference signal arrival time information and arrival angle information based on the positioning reference signal, and feeds back the first channel state information, the positioning reference signal arrival time information and the arrival angle information to the first communication node, wherein the first channel state information at least comprises one of low reliability channel state information, medium reliability channel state information and high reliability channel state information;

the first communication node receiving the first channel state information, the positioning reference signal arrival time information and the arrival angle information;

the first communication node sends uplink sounding reference signal configuration information, wherein the uplink sounding reference signal configuration information at least includes sending power configuration information of sending an uplink sounding reference signal by the second communication node, and when the first channel state information is low-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal with maximum sending power; when the first channel state information is medium reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.75 times of the maximum sending power; when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.5 times of the maximum sending power;

the first communication node estimates the possible position of the second communication node according to the positioning reference signal arrival time and arrival angle information, the first communication node activates X third communication nodes and Y fifth communication nodes which are closest to the possible position, wherein the value of X is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of X is 3, when the first channel state information is medium-reliability channel state information, the value of X is 2, and when the first channel state information is high-reliability channel state information, the value of X is 1; the value of Y is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of Y is 3, and when the first channel state information is medium-reliability channel state information or high-reliability channel state information, the value of Y is 0;

after receiving the uplink sounding reference signal configuration information, the second communication node sends the uplink sounding reference signal according to the uplink sounding reference signal configuration information;

the first communication node receives the uplink sounding reference signal and determines second channel state information according to the receiving quality of the uplink sounding reference signal, wherein the second channel state information at least comprises one of low reliability channel state information, medium reliability channel state information and high reliability channel state information;

the Y fifth communication nodes receive the uplink sounding reference signal, and Z fifth communication nodes which receive the uplink sounding reference signal and have a receiving signal-to-noise ratio larger than 20dB are selected from the Y fifth communication nodes, wherein Z is an integer larger than or equal to 0 and smaller than or equal to Y;

the first communication node modulates N data bits, wherein the modulation mode is determined according to the following criteria:

a. if the first channel state information and the second channel state information are both low-reliability channel state information, the first N/3 data bits use a BPSK modulation mode, the middle N/3 data bits use a QPSK modulation mode, and the last N/3 data bits use a 16QAM modulation mode;

b. if the first channel state information is low-reliability channel state information and the second channel state information is medium-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, the middle N/4 data bits use a QPSK modulation mode, and the last N/2 data bits use a 16QAM modulation mode;

c. if the first channel state information is low-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, and the last 3N/4 data bits use a 16QAM modulation mode;

d. if the first channel state information is medium-reliability channel state information and the second channel state information is low-reliability channel state information, the first N/3 data bits use a QPSK modulation mode, the middle N/3 data bits use a 16QAM modulation mode, and the last N/3 data bits use a 64QAM modulation mode;

e. if the first channel state information and the second channel state information are both medium reliability channel excellent state information, the first N/4 data bits use a QPSK modulation mode, the middle N/4 data bits use a 16QAM modulation mode, and the last N/2 data bits use a 64QAM modulation mode;

f. if the first channel state information is medium-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a 16QAM modulation mode, and the last N3/4 data bits use a 64QAM modulation mode;

g. if the first channel state information is high-reliability channel state information, the N data bits use a 64QAM modulation mode, wherein N is an integer of positive integer multiple of 72, and the N data bits comprise a used bit and a cyclic redundancy check bit;

the first communication node shares a plurality of modulation symbols obtained after modulation to the X third communication nodes;

the first communication node and the X third communication nodes use the same time-frequency resource to send the modulation symbols to the second communication node and the Y fifth communication nodes;

the second communication node receives the plurality of modulation symbols, the Z fifth communication nodes receive the plurality of modulation symbols, if N data bit checks obtained after processing by the second communication node or any one of the Z fifth communication nodes pass, the second communication node generates feedback information including reception success information to the first communication node, and if N data bit checks obtained after processing by all the second communication node or the Z fifth communication nodes fail, the second communication node generates feedback information including reception failure information to the first communication node;

the first communication node receiving the feedback information, and if the feedback information contains reception failure information, the first communication node determines a fourth communication node closest to the second communication node except the X third communication nodes based on the positioning reference signal arrival time and the angle of arrival information fed back by the second communication node, said first communication node sharing said last N/2 data bits of said N data-to-said fourth communication node, the first communication node and the X third communication nodes modulate the first N/2 or N data bits and then retransmit the modulated data bits to the second communication node and the Z fifth communication nodes, and the fourth communication node modulates the later N/2 data bits and then retransmits the modulated data bits to the second communication node and the Z fifth communication nodes.

2. The method for cooperative processing of data in the internet of things of industry according to claim 1, wherein before the second communication node feeds back the first channel state information, the second communication node negotiates with the first communication node through signaling a generation manner of the first channel state information, and when a signal to interference plus noise ratio of the downlink channel state information reference signal received by the second communication node is less than or equal to 8dB, the first channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 8dB and less than or equal to 15dB, the first channel state information comprises medium reliability channel state information; and when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 15dB, the first channel state information comprises high-reliability channel state information.

3. The method for cooperative processing of data in the internet of things of industry according to claim 1, wherein when the first channel state information is low-reliability channel state information, the transmit power configuration information requires the second communication node to repeat transmitting the uplink sounding reference signal eight times in a time domain; when the first channel state information is medium reliability channel state information, the transmission power configuration information requires the second communication node to repeat transmitting the uplink sounding reference signal four times in a time domain; and when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal repeatedly twice in a time domain.

4. The cooperative data processing method in the industrial internet of things as claimed in claim 1, wherein when the signal to interference and noise ratio of the uplink sounding reference signal received by the first communication node is less than or equal to 8dB, the second channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 8dB and less than or equal to 15dB, the second channel state information includes medium reliability channel state information, and when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 15dB, the second channel state information includes high reliability channel state information.

5. The method of claim 1, wherein when the feedback information received by the first communication node includes reception failure information and the first channel state information is low-reliability channel state information, the first communication node performs BPSK modulation on the N data bits, the first communication node shares the modulation symbols with the X third communication nodes, and the first communication node and the third communication node transmit the modulation symbols to the second communication node and the Z fifth communication nodes using the same time-frequency resource; and the fourth communication node performs BPSK modulation on the last N/2 data bits, and sends a plurality of BPSK symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

6. The method of claim 1, wherein when the feedback information received by the first communication node includes reception failure information and the first channel state information is medium reliability channel state information, the first communication node performs BPSK modulation on first N/2 data bits of the N data bits and performs QPSK modulation on last N/2 bits, the first communication node shares the modulation symbols with the X third communication nodes, and the first communication node and the third communication node transmit the modulation symbols to the second communication node and the Z fifth communication nodes using the same time-frequency resource; and the fourth communication node performs 16QAM modulation on the last N/2 data bits, and sends a plurality of 16QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

7. The method of claim 1, wherein when the feedback information received by the first communication node includes reception failure information and the first channel state information is high-reliability channel state information, the first communication node performs QPSK modulation on first N/2 bits of the N data bits and performs 16QAM modulation on last N/2 data bits, the first communication node shares the multiple modulation symbols with the X third communication nodes, and the first communication node and the third communication node transmit the multiple modulation symbols to the second communication node and the Z fifth communication nodes using the same time-frequency resource; and the fourth communication node performs 64QAM modulation on the last N/2 data bits, and sends a plurality of 64QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

8. The data cooperation processing method in the industrial internet of things as claimed in claim 1, wherein the first communication node transmits only the downlink channel state information reference signal in a time domain where the downlink channel state information reference signal is located.

9. The data cooperation processing method in the industrial internet of things as claimed in claim 1, wherein when the first channel state information is high-reliability channel state information, the second communication node transmits only the uplink sounding reference signal in a time domain where the uplink sounding reference signal is located.

10. The method as claimed in claim 1, wherein when the first channel state information is high reliability channel state information, and the first communication node transmits the N data bits, the first communication node uses demodulation reference signals with X number of resources, when the first communication node transmits the N data bits, the first communication node uses demodulation reference signals with Y number of resources, and when the first channel state information is low reliability channel state information, the first communication node transmits the N data bits, the first communication node uses demodulation reference signals with Z number of resources, wherein, x, Y, Z is a positive integer, X is twice as large as Y, and Y is 2 times as large as Z.

Technical Field

The invention relates to the technical field of wireless communication, in particular to a data cooperation processing method in an industrial Internet of things.

Background

The 5G can meet diversified business requirements of people in various areas such as residence, work, leisure and traffic, and can provide extremely-sophisticated business experience such as ultra-high-definition videos, virtual video reality, augmented reality, cloud desktops and online games for users even in scenes with ultra-high traffic density, ultra-high connection number density and ultra-high mobility characteristics such as dense residential areas, offices, stadiums, outdoor parties, subways, expressways, high-speed rails and wide area coverage. Meanwhile, 5G can permeate into the fields of the Internet of things and various industries, is deeply integrated with industrial facilities, medical instruments, vehicles and the like, effectively meets the diversified business requirements of the vertical industries such as industry, medical treatment, transportation and the like, and realizes real 'everything interconnection'.

The 5G application scenarios can be divided into two Broad categories, namely Mobile broadband (MBB) and internet of Things (IoT), wherein the main technical requirement of Mobile broadband access is high capacity, providing high data rate, to meet the increasing demand of data service. The internet of things is mainly driven by the requirement of Machine Communication (MTC), and can be further divided into two types, including low-speed Mass Machine Communication (MMC) and low-latency reliable Machine Communication. For the low-speed mass machine communication, mass nodes are accessed at a low speed, the transmitted data packets are usually small, the interval time is relatively long, and the cost and the power consumption of the nodes are usually low; for machine communication with low time delay and high reliability, the method is mainly used for machine communication with higher requirements on instantaneity and reliability, such as real-time alarm, real-time monitoring and the like.

In a fifth generation mobile communication system, one problem to be solved is the efficient and reliable transmission of data in the industrial internet of things scene, and a common solution can seriously reduce the network performance under the condition of low channel estimation accuracy.

Based on the analysis, the invention provides a data cooperation processing method in an industrial Internet of things.

Disclosure of Invention

The invention mainly aims to provide a data cooperation processing method in an industrial Internet of things, and aims to improve the transmission reliability and efficiency of data in the industrial Internet of things.

In order to achieve the above object, the present invention provides a data cooperation processing method in an industrial internet of things, including the following steps:

a second communication node receives a downlink channel state information reference signal and a positioning reference signal sent by a first communication node, generates first channel state information based on the downlink channel state information reference signal, generates positioning reference signal arrival time information and arrival angle information based on the positioning reference signal, and feeds back the first channel state information, the positioning reference signal arrival time information and the arrival angle information to the first communication node, wherein the first channel state information at least comprises one of low reliability channel state information, medium reliability channel state information and high reliability channel state information;

the first communication node receiving the first channel state information, the positioning reference signal arrival time information and the arrival angle information;

the first communication node sends uplink sounding reference signal configuration information, wherein the uplink sounding reference signal configuration information at least includes sending power configuration information of sending an uplink sounding reference signal by the second communication node, and when the first channel state information is low-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal with maximum sending power; when the first channel state information is medium reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.75 times of the maximum sending power; when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.5 times of the maximum sending power;

the first communication node estimates the possible position of the second communication node according to the positioning reference signal arrival time and arrival angle information, the first communication node activates X third communication nodes and Y fifth communication nodes which are closest to the possible position, wherein the value of X is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of X is 3, when the first channel state information is medium-reliability channel state information, the value of X is 2, and when the first channel state information is high-reliability channel state information, the value of X is 1; the value of Y is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of Y is 3, and when the first channel state information is medium-reliability channel state information or high-reliability channel state information, the value of Y is 0;

after receiving the uplink sounding reference signal configuration information, the second communication node sends the uplink sounding reference signal according to the uplink sounding reference signal configuration information;

the first communication node receives the uplink sounding reference signal and determines second channel state information according to the receiving quality of the uplink sounding reference signal, wherein the second channel state information at least comprises one of low reliability channel state information, medium reliability channel state information and high reliability channel state information;

the Y fifth communication nodes receive the uplink sounding reference signal, and Z fifth communication nodes which receive the uplink sounding reference signal and have a receiving signal-to-noise ratio larger than 20dB are selected from the Y fifth communication nodes, wherein Z is an integer larger than or equal to 0 and smaller than or equal to Y;

the first communication node modulates N data bits, wherein the modulation mode is determined according to the following criteria:

a. if the first channel state information and the second channel state information are both low-reliability channel state information, the first N/3 data bits use a BPSK modulation mode, the middle N/3 data bits use a QPSK modulation mode, and the last N/3 data bits use a 16QAM modulation mode;

b. if the first channel state information is low-reliability channel state information and the second channel state information is medium-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, the middle N/4 data bits use a QPSK modulation mode, and the last N/2 data bits use a 16QAM modulation mode;

c. if the first channel state information is low-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, and the last 3N/4 data bits use a 16QAM modulation mode;

d. if the first channel state information is medium-reliability channel state information and the second channel state information is low-reliability channel state information, the first N/3 data bits use a QPSK modulation mode, the middle N/3 data bits use a 16QAM modulation mode, and the last N/3 data bits use a 64QAM modulation mode;

e. if the first channel state information and the second channel state information are both medium-reliability channel state information, the first N/4 data bits use a QPSK modulation mode, the middle N/4 data bits use a 16QAM modulation mode, and the last N/2 data bits use a 64QAM modulation mode;

f. if the first channel state information is medium-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a 16QAM modulation mode, and the last N3/4 data bits use a 64QAM modulation mode;

g. if the first channel state information is high-reliability channel state information, the N data bits use a 64QAM modulation mode, wherein N is an integer of positive integer multiple of 72, and the N data bits comprise a used bit and a cyclic redundancy check bit;

the first communication node shares a plurality of modulation symbols obtained after modulation to the X third communication nodes;

the first communication node and the X third communication nodes use the same time-frequency resource to send the modulation symbols to the second communication node and the Y fifth communication nodes;

the second communication node receives the plurality of modulation symbols, the Z fifth communication nodes receive the plurality of modulation symbols, if N data bit checks obtained after processing by the second communication node or any one of the Z fifth communication nodes pass, the second communication node generates feedback information including reception success information to the first communication node, and if N data bit checks obtained after processing by all the second communication node or the Z fifth communication nodes fail, the second communication node generates feedback information including reception failure information to the first communication node;

the first communication node receiving the feedback information, and if the feedback information contains reception failure information, the first communication node determines a fourth communication node closest to the second communication node except the X third communication nodes based on the positioning reference signal arrival time and the angle of arrival information fed back by the second communication node, said first communication node sharing said last N/2 data bits of said N data-to-said fourth communication node, the first communication node and the X third communication nodes modulate the first N/2 or N data bits and then retransmit the modulated data bits to the second communication node and the Z fifth communication nodes, and the fourth communication node modulates the later N/2 data bits and then retransmits the modulated data bits to the second communication node and the Z fifth communication nodes.

A further technical solution of the present invention is that, before the second communication node feeds back the first channel state information, the second communication node negotiates with the first communication node through signaling a generation manner of the first channel state information, and when a signal to interference plus noise ratio of the downlink channel state information reference signal received by the second communication node is less than or equal to 8dB, the first channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 8dB and less than or equal to 15dB, the first channel state information comprises medium reliability channel state information; and when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 15dB, the first channel state information comprises high-reliability channel state information.

A further technical solution of the present invention is that, when the first channel state information is low reliability channel state information, the transmission power configuration information requires the second communication node to repeat transmitting the uplink sounding reference signal eight times in a time domain; when the first channel state information is medium reliability channel state information, the transmission power configuration information requires the second communication node to repeat transmitting the uplink sounding reference signal four times in a time domain; and when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal repeatedly twice in a time domain.

A further technical solution of the present invention is that, when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is less than or equal to 8dB, the second channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 8dB and less than or equal to 15dB, the second channel state information includes medium reliability channel state information, and when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 15dB, the second channel state information includes high reliability channel state information.

A further technical solution of the present invention is that, when the feedback information received by the first communication node includes reception failure information and the first channel state information is low reliability channel state information, the first communication node performs BPSK modulation on the N data bits, the first communication node shares the multiple modulation symbols to the X third communication nodes, and the first communication node and the third communication node use the same time-frequency resource to send the multiple modulation symbols to the second communication node and the Z fifth communication nodes; and the fourth communication node performs BPSK modulation on the last N/2 data bits, and sends a plurality of BPSK symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

A further technical solution of the present invention is that, when the feedback information received by the first communication node includes reception failure information and the first channel state information is medium reliability channel state information, the first communication node performs BPSK modulation on the first N/2 data bits of the N data bits and performs QPSK modulation on the last N/2 data bits, the first communication node shares the multiple modulation symbols to the X third communication nodes, and the first communication node and the third communication node use the same time-frequency resources to send the multiple modulation symbols to the second communication node and the Z fifth communication nodes; and the fourth communication node performs 16QAM modulation on the last N/2 data bits, and sends a plurality of 16QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

A further technical solution of the present invention is that, when the feedback information received by the first communication node includes reception failure information and the first channel state information is high-reliability channel state information, the first communication node performs QPSK modulation on the first N/2 bits of the N data bits and performs 16QAM modulation on the last N/2 data bits, the first communication node shares the multiple modulation symbols to the X third communication nodes, and the first communication node and the third communication node use the same time-frequency resource to send the multiple modulation symbols to the second communication node and the Z fifth communication nodes; and the fourth communication node performs 64QAM modulation on the last N/2 data bits, and sends a plurality of 64QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

A further technical solution of the present invention is that the first communication node transmits only the downlink channel state information reference signal in a time domain where the downlink channel state information reference signal is located.

A further technical solution of the present invention is that, when the first channel state information is high-reliability channel state information, the second communication node transmits only the uplink sounding reference signal in a time domain where the uplink sounding reference signal is located.

A further technical solution of the present invention is that, when the first channel state information is high reliability channel state information, the number of resources occupied by the demodulation reference signal used by the first communication node when the first communication node transmits the N data bits is X subcarriers, when the first channel state information is medium reliability channel state information, the number of resources occupied by the demodulation reference signal used by the first communication node when the first communication node transmits the N data bits is Y subcarriers, when the first channel state information is low reliability channel state information, the number of resources occupied by the demodulation reference signal used by the first communication node when the first communication node transmits the N data bits is Z subcarriers, wherein X, Y, Z is a positive integer, X is greater than or equal to two times Y, y is 2 times or more of Z.

The data cooperative processing method in the industrial Internet of things has the advantages that by means of the technical scheme, the problem of data transmission reliability in the existing industrial Internet of things can be solved, and reliability and efficiency of data channel transmission are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic flow chart of a data cooperation processing method in the industrial internet of things according to a first embodiment of the invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a data cooperation processing method in an industrial internet of things, and a first embodiment of the data cooperation processing method in the industrial internet of things of the present invention includes the following steps:

step S10, a second communication node receives a downlink channel state information reference signal and a positioning reference signal sent by a first communication node, generates first channel state information based on the downlink channel state information reference signal, generates positioning reference signal arrival time information and arrival angle information based on the positioning reference signal, and feeds back the first channel state information, the positioning reference signal arrival time information, and the arrival angle information to the first communication node, where the first channel state information at least includes one of low reliability channel state information, medium reliability channel state information, and high reliability channel state information.

In this embodiment, the first communication node may be, for example, a base station, and the second communication node may be, for example, a terminal, and the base station and the terminal are taken as examples to describe the present invention in detail below.

In this embodiment, a terminal receives a downlink channel state information reference signal and a positioning reference signal sent by a base station, generates first channel state information based on the downlink channel state information reference signal, generates positioning reference signal arrival time information and arrival angle information based on the positioning reference signal, and feeds back the first channel state information, the positioning reference signal arrival time information, and the arrival angle information to the base station, where the first channel state information at least includes one of low reliability channel state information, medium reliability channel state information, and high reliability channel state information.

The embodiment of the present invention using the divided channel state information has the advantages of reducing the uplink feedback overhead in the case of fully considering the actual wireless channel environment, and improving the uplink spectrum efficiency of the mobile communication system. The advantage of feeding back the positioning related information is that the base station can determine to activate the micro base station near the terminal according to the position of the terminal when data retransmission is carried out, and the micro base station and the base station cooperate with each other to carry out data retransmission on the terminal, so that the reliability of data transmission is improved.

Step S20, the first communication node receives the first channel state information, the positioning reference signal time of arrival information and the angle of arrival information.

And the base station receives the first channel state information, the positioning reference signal arrival time information and the arrival angle information.

Step S30, the first communication node sends uplink sounding reference signal configuration information, where the uplink sounding reference signal configuration information at least includes sending power configuration information of sending an uplink sounding reference signal by the second communication node, and when the first channel state information is low reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal with maximum sending power; when the first channel state information is medium reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.75 times of the maximum sending power; when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal by using 0.5 times of the maximum sending power.

In this embodiment, a base station sends uplink sounding reference signal configuration information, where the uplink sounding reference signal configuration information at least includes sending power configuration information for a terminal to send an uplink sounding reference signal, and when the first channel state information is low-reliability channel state information, the sending power configuration information requires the terminal to need maximum sending power to send the uplink sounding reference signal; when the first channel state information is medium reliability channel state information, the sending power configuration information requires the terminal to send the uplink sounding reference signal by using 0.75 time of the maximum sending power; and when the first channel state information is high-reliability channel state information, the sending power configuration information requires the terminal to send the uplink sounding reference signal by using 0.5 time of the maximum sending power.

The reason for adopting the above technical solution in this embodiment is that there is reciprocity in the uplink and downlink channels of the TDD mobile communication system, and the base station can determine the transmission power of the uplink signal according to the downlink feedback condition, thereby avoiding that the uplink signal reception quality caused by the uplink coverage problem cannot meet the communication requirement.

Step S40, the first communication node estimates a possible position of the second communication node according to the positioning reference signal arrival time and arrival angle information, the first communication node activates X third communication nodes and Y fifth communication nodes that are closest to the possible position, wherein a value of X is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of X is 3, when the first channel state information is medium-reliability channel state information, the value of X is 2, and when the first channel state information is high-reliability channel state information, the value of X is 1; and the value of Y is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of Y is 3, and when the first channel state information is medium-reliability channel state information or high-reliability channel state information, the value of Y is 0.

In this embodiment, the third communication node may be, for example, a micro base station, and the fifth communication node may be, for example, a special terminal. In this embodiment, a base station estimates a possible position of a terminal according to the positioning reference signal arrival time and arrival angle information, and activates X micro base stations and Y special terminals closest to the possible position, where a value of X is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of X is 3, when the first channel state information is medium-reliability channel state information, the value of X is 2, and when the first channel state information is high-reliability channel state information, the value of X is 1; and the value of Y is determined according to the first channel state information, when the first channel state information is low-reliability channel state information, the value of Y is 3, and when the first channel state information is medium-reliability channel state information or high-reliability channel state information, the value of Y is 0.

The technical scheme adopted by the embodiment has the beneficial effects that the base station determines the number of the micro base stations which need to cooperate with the base station to perform downlink data transmission and the number of the special terminals which need to cooperate with the terminal to receive according to the downlink channel state information between the base station and the terminal, so that the probability of successfully receiving the downlink data by the terminal is improved.

Step S50, after receiving the uplink sounding reference signal configuration information, the second communications node sends the uplink sounding reference signal according to the uplink sounding reference signal configuration information.

And after receiving the uplink sounding reference signal configuration information, the terminal sends the uplink sounding reference signal according to the uplink sounding reference signal configuration information.

Step S60, the first communication node receives the uplink sounding reference signal, and determines second channel state information according to the reception quality of the uplink sounding reference signal, where the second channel state information at least includes one of low reliability channel state information, medium reliability channel state information, and high reliability channel state information.

In this embodiment, the base station receives the uplink sounding reference signal, and determines second channel state information according to the reception quality of the uplink sounding reference signal, where the second channel state information at least includes one of low reliability channel state information, medium reliability channel state information, and high reliability channel state information.

The reason for adopting the above technical solution in this embodiment is that although there is channel reciprocity between the uplink and the downlink in the TDD mobile communication system, there is no reciprocity between the uplink and the downlink interference, so that there is a problem that the uplink and downlink channel state information is inconsistent.

Step S70, the Y fifth communication nodes receive the uplink sounding reference signal, and select Z fifth communication nodes from the Y fifth communication nodes, where Z is an integer greater than or equal to 0 and less than or equal to Y, where the received signal-to-noise ratio of the uplink sounding reference signal received by the Z fifth communication nodes is greater than 20 dB.

In this embodiment, the Y special terminals receive the uplink sounding reference signal, and Z special terminals with a receiving signal-to-noise ratio greater than 20dB for receiving the uplink sounding reference signal are selected from the Y special terminals, where Z is an integer greater than or equal to 0 and less than or equal to Y.

In step S80, the first communication node modulates N data bits.

In this embodiment, the base station modulates N data bits, wherein the modulation mode is determined according to the following criteria:

a. and if the first channel of state information and the second channel of state information are both low-reliability channel state information, the first N/3 data bits use a BPSK modulation mode, the middle N/3 data bits use a QPSK modulation mode, and the last N/3 data bits use a 16QAM modulation mode.

In the present embodiment, the above technical solution is adopted to ensure the reliability of transmission by adopting a relatively large number of low-order modulation methods in consideration of the relatively poor quality of the wireless channel between the base station and the terminal.

b. If the first channel state information is low-reliability channel state information and the second channel state information is medium-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, the middle N/4 data bits use a QPSK modulation mode, and the last N/2 data bits use a 16QAM modulation mode.

In the embodiment, the above technical solution is adopted to consider that at this time, a downlink channel of the base station and the terminal has relatively strong interference, which results in relatively high downlink SINR, but the analysis of the downlink SNR from the second channel state information is better, so that the use of the low-order modulation mode can be reduced.

c. And if the first channel state information is low-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a BPSK modulation mode, and the last 3N/4 data bits use a 16QAM modulation mode.

In the embodiment, the above technical solution is adopted to consider that at this time, a downlink channel of the base station and the terminal has relatively strong interference, which results in relatively high downlink SINR, but the analysis of the downlink SNR from the second channel state information is very good, so that the use of the low-order modulation mode can be further reduced.

d. If the first channel state information is medium-reliability channel state information and the second channel state information is low-reliability channel state information, the first N/3 data bits use a QPSK modulation mode, the middle N/3 data bits use a 16QAM modulation mode, and the last N/3 data bits use a 64QAM modulation mode.

In the embodiment, the above technical solution is adopted, in consideration of that the downlink channel of the base station and the terminal is relatively good, so that the BPSK low-order modulation method may not be applicable.

e. If the first channel state information and the second channel state information are both medium reliability channel excellent state information, the first N/4 data bits use a QPSK modulation mode, the middle N/4 data bits use a 16QAM modulation mode, and the last N/2 data bits use a 64QAM modulation mode.

In the embodiment, the above technical solution is adopted in consideration that the downlink channel and the uplink channel of the base station and the terminal are better at this time, so that it is proved that the reliability of the better downlink channel information is very high, and therefore, more data bits can use a 64QAM modulation scheme.

f. And if the first channel state information is medium-reliability channel state information and the second channel state information is high-reliability channel state information, the first N/4 data bits use a 16QAM modulation mode, and the last N3/4 data bits use a 64QAM modulation mode.

The technical scheme adopted by the embodiment considers that the downlink channel of the base station and the terminal is better and the uplink channel is better, so that the interference of the downlink channel is proved, and the interference terminal sides adopt an optimized receiver algorithm to eliminate the interference, so that more data bits can use a 64QAM modulation mode.

g. And if the first channel state information is high-reliability channel state information, using a 64QAM modulation mode for the N data bits, wherein N is an integer of positive integer multiple of 72, and the N data bits comprise a useful bit and a cyclic redundancy check bit.

In this case, it is described that the downlink channel is very good, and the N data bits can be modulated by using the 64QAM modulation scheme without considering the uplink channel.

Step S90, the first communication node shares the plurality of modulated symbols obtained after modulation to the X third communication nodes.

And the base station shares a plurality of modulated symbols obtained after modulation to the X micro base stations.

Step S100, the first communication node and the X third communication nodes use the same time-frequency resource to send the multiple modulation symbols to the second communication node and the Y fifth communication nodes.

And the base station and the X micro base stations use the same time-frequency resource to send the modulation symbols to the terminal and the Y special terminals.

Step S110, the second communication node receives the multiple modulation symbols, the Z fifth communication nodes receive the multiple modulation symbols, if N data bit checks obtained after processing by the second communication node or any one of the Z fifth communication nodes pass, the second communication node generates feedback information including reception success information to the first communication node, and if N data bit checks obtained after processing by all the communication nodes in the second communication node or the Z fifth communication nodes fail, the second communication node generates feedback information including reception failure information to the first communication node.

The terminal and the Z special terminals receive a plurality of modulation symbols, if N data bits obtained after processing by any one of the terminal and the Z special terminals pass verification, the terminal generates feedback information containing successful receiving information to the base station, and if N data bits obtained after processing by the terminal and the Z special terminals do not pass verification, the terminal generates feedback information containing failed receiving information to the base station.

Step S120, the first communication node receives the feedback information, and if the feedback information contains reception failure information, the first communication node determines a fourth communication node closest to the second communication node except the X third communication nodes based on the positioning reference signal arrival time and the angle of arrival information fed back by the second communication node, the first communication node shares the last N/2 of the N data bits to the fourth communication node, the first communication node and the X third communication nodes modulate the first N/2 or N data bits and then retransmit the modulated data bits to the second communication node and the Z fifth communication nodes, and the fourth communication node modulates the later N/2 data bits and then retransmits the modulated data bits to the second communication node and the Z fifth communication nodes.

The base station receives the feedback information, if the feedback information contains reception failure information, the base station determines the approximate position of the terminal based on the arrival time and the arrival angle information of the positioning reference signal fed back by the terminal, then finds a micro base station (called as a fourth base station) which is closest to the terminal except the X micro base stations, the base station shares the last N/2 data bits of the N data bits to the micro base station, the base station modulates the first N/2 data bits and then retransmits the data bits to the terminal and the Z special terminals, and the fourth base station modulates the last N/2 data bits and then retransmits the data bits to the terminal and the Z special terminals. It should be noted that the modulation scheme used for retransmission of N data bits needs to be adjusted, so as to appropriately reduce the order of the modulation scheme and improve the reliability of data transmission.

It should be noted that, in this embodiment, the first communication node only transmits the downlink channel state information reference signal in the time domain where the downlink channel state information reference signal is located. The advantage of this is that the terminal can transmit the downlink sounding reference signal by concentrating all downlink power, thereby improving the estimation accuracy of the base station on the downlink channel.

And when the first channel state information is high-reliability channel state information, the second communication node only transmits the uplink sounding reference signal in the time domain where the uplink sounding reference signal is located. The advantage of this is that the terminal can transmit the uplink sounding reference signal by concentrating all uplink powers, thereby improving the estimation accuracy of the base station for the uplink channel.

According to the technical scheme, the problem of data transmission reliability in the existing industrial Internet of things can be solved, and the reliability and efficiency of data channel transmission are improved.

Based on the first embodiment shown in fig. 1, a second embodiment of the data cooperation processing method in the industrial internet of things is provided, where this embodiment is different from the first embodiment shown in fig. 1 in that before the second communication node feeds back the first channel state information, the second communication node negotiates with the first communication node through signaling about a generation manner of the first channel state information, and when a signal to interference plus noise ratio of the downlink channel state information reference signal received by the second communication node is less than or equal to 8dB, the first channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 8dB and less than or equal to 15dB, the first channel state information comprises medium reliability channel state information; and when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the second communication node is greater than 15dB, the first channel state information comprises high-reliability channel state information.

Taking the terminal and the base station as examples, in this embodiment, before the terminal feeds back the first channel state information, the terminal and the base station negotiate a generation manner of the first channel state information through signaling, and when a signal to interference plus noise ratio of the downlink channel state information reference signal received by the terminal is less than or equal to 8dB, the first channel state information includes low reliability channel state information; when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the terminal is greater than 8dB and less than or equal to 15dB, the first channel state information comprises medium reliability channel state information; and when the signal-to-interference-and-noise ratio of the downlink channel state information reference signal received by the terminal is greater than 15dB, the first channel state information comprises high reliability channel state information.

The technical scheme adopted by the embodiment has the beneficial effects that the base station and the terminal can adjust the intervals of the channel state information with different reliabilities according to the actual condition of the wireless channel, thereby better adapting to the change of the wireless channel environment.

Based on the first embodiment shown in fig. 1, a third embodiment of the data cooperative processing method in the industrial internet of things is provided, and the difference between this embodiment and the first embodiment shown in fig. 1 is that when the first channel state information is low-reliability channel state information, the transmission power configuration information requires the second communication node to repeatedly transmit the uplink sounding reference signal eight times in a time domain; when the first channel state information is medium reliability channel state information, the transmission power configuration information requires the second communication node to repeat transmitting the uplink sounding reference signal four times in a time domain; and when the first channel state information is high-reliability channel state information, the sending power configuration information requires the second communication node to send the uplink sounding reference signal repeatedly twice in a time domain.

Taking the terminal and the base station as examples, in this embodiment, when the first channel state information is low reliability channel state information, the transmit power configuration information requires the terminal to repeat transmitting the uplink sounding reference signal eight times in a time domain; when the first channel state information is medium reliability channel state information, the transmission power configuration information requires the terminal to repeatedly transmit the uplink sounding reference signal four times in a time domain; and when the first channel state information is high-reliability channel state information, the transmission power configuration information requires the terminal to repeatedly transmit the uplink sounding reference signal twice in the time domain.

By adopting the technical scheme, the transmission quality of the uplink sounding reference signal is improved as much as possible by utilizing the reciprocity of the uplink and the downlink of the channel, and the base station is ensured to obtain more accurate judgment on the state information of the downlink channel.

Based on the first embodiment shown in fig. 1, a fourth embodiment of the data cooperation processing method in the industrial internet of things is proposed, and the difference between this embodiment and the first embodiment shown in fig. 1 is that when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is less than or equal to 8dB, the second channel state information includes low-reliability channel state information; when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 8dB and less than or equal to 15dB, the second channel state information includes medium reliability channel state information, and when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the first communication node is greater than 15dB, the second channel state information includes high reliability channel state information.

Taking the terminal and the base station as examples, in this embodiment, when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the base station is less than or equal to 8dB, the second channel state information includes low reliability channel state information; and when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the base station is greater than 8dB and less than or equal to 15dB, the second channel state information comprises medium reliability channel state information, and when the signal-to-interference-and-noise ratio of the uplink sounding reference signal received by the base station is greater than 15dB, the second channel state information comprises high reliability channel state information.

The technical scheme adopted by the embodiment has the beneficial effects that the base station and the terminal can adjust the intervals of the channel state information with different reliabilities according to the actual condition of the wireless channel, thereby better adapting to the change of the wireless channel environment.

Based on the first embodiment shown in fig. 1, a fifth embodiment of the data cooperative processing method in the industrial internet of things is provided, where this embodiment is different from the first embodiment shown in fig. 1 in that when the feedback information received by the first communication node includes reception failure information and the first channel state information is low-reliability channel state information, the first communication node performs BPSK modulation on the N data bits, the first communication node shares the multiple modulation symbols with the X third communication nodes, and the first communication node and the third communication node use the same time-frequency resource to send the multiple modulation symbols to the second communication node and the Z fifth communication nodes; the fourth communication node performs BPSK modulation on the last N/2) data bits, and sends multiple BPSK symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

Taking the terminal and the base station as an example, in this embodiment, when the feedback information received by the base station includes reception failure information and the first channel state information is low-reliability channel state information, the base station performs BPSK modulation on the N data bits, the base station shares the multiple modulation symbols with the X micro base stations, and the base station and the micro base stations use the same time-frequency resource to send the multiple modulation symbols to the terminal and the Z special terminals; and the fourth communication node performs BPSK modulation on the last N/2 data bits, and sends a plurality of BPSK symbols obtained after modulation to the terminal and the Z special terminals.

The technical scheme adopted by the embodiment has the beneficial effects that all data bits use a BPSK modulation mode, and partial data bits are transmitted by the micro base station which is closer to the terminal, so that the probability of successful reception of the terminal is improved.

Based on the first embodiment shown in fig. 1, a sixth embodiment of the data cooperative processing method in the industrial internet of things is provided, where this embodiment is different from the first embodiment shown in fig. 1 in that when the feedback information received by the first communication node includes reception failure information and the first channel state information is medium reliability channel state information, the first communication node performs BPSK modulation on first N/2 data bits of the N data bits and performs QPSK modulation on last N/2 bits, the first communication node shares the modulation symbols with the X third communication points, and the first communication node and the third communication node use the same time-frequency resource to send the modulation symbols to the second communication node and the Z fifth communication nodes; and the fourth communication node performs 16QAM modulation on the last N/2 data bits, and sends a plurality of 16QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

Taking the terminal and the base station as examples, in this embodiment, when the feedback information received by the base station includes reception failure information and the first channel state information is medium reliability channel state information, the base station performs BPSK modulation on the first N/2 data bits of the N data bits and performs QPSK modulation on the last N/2 data bits, the first communication node shares the multiple modulation symbols with the X micro base stations, and the base station and the micro base stations use the same time-frequency resource to send the multiple modulation symbols to the terminal and the Z special terminals; and the fourth communication node performs 16QAM modulation on the last N/2 data bits, and sends a plurality of 16QAM symbols obtained after modulation to the terminal and the Z special terminals.

The technical scheme adopted by the embodiment has the beneficial effects that compared with the modulation mode used for the first transmission, the retransmitted data bits use more low-order modulation modes, and the probability of successful reception of the terminal is improved.

Based on the first embodiment shown in fig. 1, a seventh embodiment of the data cooperation processing method in the industrial internet of things is provided, where this embodiment is different from the first embodiment shown in fig. 1 in that when the feedback information received by the first communication node includes reception failure information and the first channel state information is high-reliability channel state information, the first communication node performs QPSK modulation on first N/2 bits of the N data bits and performs 16QAM modulation on last N/2 data bits, the first communication node shares the multiple modulation symbols to the X third communication nodes, and the first communication node and the third communication node use the same time-frequency resource to send the multiple modulation symbols to the second communication node and the Z fifth communication nodes; and the fourth communication node performs 64QAM modulation on the last N/2 data bits, and sends a plurality of 64QAM symbols obtained after modulation to the second communication node and the Z fifth communication nodes.

Taking the above terminal and base station as an example, in this embodiment, when the feedback information received by the base station includes reception failure information and the first channel state information is high-reliability channel state information, the base station performs QPSK modulation on the first N/2 bits of the N data bits, performs 16QAM modulation on the last N/2 data bits, shares the multiple modulation symbols with the X micro base stations, and sends the multiple modulation symbols to the terminal and the Z special terminals by using the same time-frequency resource; and the fourth communication node performs 64QAM modulation on the last N/2 data bits, and sends a plurality of 64QAM symbols obtained after modulation to the terminal and the Z special terminals.

The technical scheme adopted by the embodiment has the beneficial effects that compared with the modulation mode used for the first transmission, the retransmitted data bits use more low-order modulation modes, and the probability of successful reception of the terminal is improved.

Based on the first embodiment shown in fig. 1, an eighth embodiment of the data cooperative processing method in the industrial internet of things is proposed, which is different from the first embodiment shown in fig. 1 in that when the first channel state information is high reliability channel state information, and the first communication node transmits the N data bits, the number of resources occupied by a demodulation reference signal used by the first communication node is X subcarriers, when the first channel state information is medium reliability channel state information, and the first communication node transmits the N data bits, the number of resources occupied by a demodulation reference signal used by the first communication node is Y subcarriers, and when the first channel state information is low reliability channel state information, and the first communication node transmits the N data bits, the number of resources occupied by a demodulation reference signal used by the first communication node is Z subcarriers, wherein X, Y, Z is a positive integer, X is twice as large as Y, and Y is 2 times as large as Z.

Taking the above terminal and the base station as examples, in this embodiment, when the first channel state information is high reliability channel state information, and the base station sends the N data bits, the number of resources occupied by the demodulation reference signal used by the first communication node is X subcarriers, when the first channel state information is medium reliability channel state information, the number of resources occupied by the demodulation reference signal used by the base station is Y subcarriers, and when the first channel state information is low reliability channel state information, the number of resources occupied by the demodulation reference signal used by the base station is Z subcarriers, where X, Y, Z is a positive integer, X is greater than or equal to twice Y, and Y is greater than or equal to 2 times Z.

The technical scheme adopted by the embodiment has the beneficial effects that when the quality of the downlink channel is good, less time-frequency resources are used for transmitting the demodulation reference signals, so that the control overhead of the system is reduced, and when the quality of the downlink channel is poor, more time-frequency resources are used for transmitting the demodulation reference signals, so that the accuracy of channel estimation is improved, and the successful probability of data bit decoding is improved.

The data cooperative processing method in the industrial Internet of things has the advantages that by means of the technical scheme, the problem of data transmission reliability in the existing industrial Internet of things can be solved, and reliability and efficiency of data channel transmission are improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.