阅读说明：本技术 一种随机接入定时提前量指示方法和设备 (Random access timing advance indicating method and equipment ) 是由 焦慧颖 于 2020-03-09 设计创作，主要内容包括：本申请公开了一种随机接入定时提前量指示方法和设备,所述方法包含以下步骤：为N类PRACH资源分别预设或者信令配置1个时间偏置值t(n),n＝1～N；用第i类PRACH资源承载表示随机接入请求的信号；当TA-t(i)大于门限值时,则变更为使用第j类PRACH资源承载表示随机接入请求的信号,直到TA-t(j)小于门限值。其中,i≠j,i,j∈[1,N],TA为上行定时提前量。本申请还包含用于所述方法的网络设备、终端设备和系统。用本申请的方法和设备,解决随机接入相应中指示的上行定时提前量值范围小、不能满足非地面通信系统需求的问题。(The application discloses a random access timing advance indicating method and equipment, wherein the method comprises the following steps of respectively presetting or configuring 1 time offset value t (N) for N-type PRACH resources or signaling, wherein N is 1-N, using the ith-type PRACH resource to bear a signal representing a random access request, when TA-t (i) is greater than a threshold value, changing to using the jth-type PRACH resource to bear the signal representing the random access request until TA-t (j) is less than the threshold value, wherein i is not equal to j, i, j ∈ [1, N ], TA is an uplink timing advance.)

1. A method for indicating random access timing advance (RACH), comprising the steps of:

respectively presetting or configuring 1 time offset value t (N) for N types of PRACH resources or signaling, wherein N is 1-N;

using the i-type PRACH resource to carry a signal representing a random access request;

when TA-t (i) is greater than the threshold value, changing to using the j-th type PRACH resource to bear the signal representing the random access request until TA-t (j) is less than the threshold value;

wherein i ≠ j, i, j ∈ [1, N ], and TA is the uplink timing advance.

2. The method of claim 1, wherein j is i + 1.

3. The method of claim 1, wherein when j > i, t (j) > t (i).

4. The method of claim 1, wherein the PRACH resources are classified according to at least one of preamble sequence code, time resource, and frequency resource.

5. The method of claim 1, wherein the PRACH resources are classified according to a combination of at least 2 information of preamble sequence codes, time resources, and frequency resources.

6. The method of claim 1, wherein the classification of the PRACH resources is pre-configured and/or signaling configured.

7. The method according to any of claims 1 to 6, for a network device, comprising the steps of:

receiving a signal representing a random access request at an i-th type PRACH resource;

determining a TA value according to the characteristics of the random access request signal;

determining the signaling value as TA-t (i);

and if the signaling value is less than or equal to the threshold value, sending a random access response containing information for indicating the signaling value.

8. The method of claim 7, further comprising the step of:

if the signaling value is larger than the threshold value, no random access response is sent;

alternatively, the first and second electrodes may be,

and if the signaling value is larger than the threshold value, sending a random access response, wherein the indicated signaling value is invalid.

9. The method according to any one of claims 1 to 6, used for a terminal device, comprising the steps of:

transmitting a signal representing a random access request on the ith type PRACH resource;

receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

if the signaling value is valid, TA is determined to be the signaling value + t (i).

10. The method of claim 9,

if the random access response of the ith type of PRACH resource is not received or a valid signaling value is not received, the method is carried out

And transmitting a signal representing a random access request on the j-th type PRACH resource.

11. A network device, the method of any one of claims 1 to 8, wherein the network device is configured to perform

Receiving a signal representing a random access request at an i-th type PRACH resource;

determining a TA value according to the characteristics of the random access request signal;

determining the signaling value as TA-t (i);

and if the signaling value is less than or equal to the threshold value, sending a random access response containing information for indicating the signaling value.

12. The network device of claim 11, wherein the network device is further configured to

If the signaling value is larger than the threshold value, no random access response is sent;

alternatively, the first and second electrodes may be,

and if the signaling value is larger than the threshold value, sending a random access response, wherein the indicated signaling value is invalid.

13. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of claims 1 to 8.

14. A terminal device, the method as claimed in any one of claims 1 to 6 and 9 to 10, wherein the terminal device is used for

Transmitting a signal representing a random access request on the ith type PRACH resource;

receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

if the signaling value is valid, TA is determined to be the signaling value + t (i).

15. The terminal device of claim 14, wherein the terminal device

If the random access response of the ith type of PRACH resource is not received or a valid signaling value is not received, the method is carried out

And transmitting a signal representing a random access request on the j-th type PRACH resource.

16. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the method according to any one of claims 1 to 6, 9 to 10.

17. A mobile communication system comprising at least one network device according to any of claims 11 to 13 and at least one terminal device according to any of claims 14 to 16.

18. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 10.

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a method and a device for indicating a random access timing advance.

Background

In the NR system, in the random access response, the base station provides a Timing Advance (TA) value to the terminal, and applies the TA value to the next uplink transmission. In the ground network, the differential time delay between two terminals in a cell corresponds to the measured one-way time delay of the two terminals relative to the base station.

For example, in the 3GPP NR standard, the maximum TA value indicated by the random access response is 2ms and the corresponding maximum distance compensation range is 300km at a subcarrier spacing of 15 kHz. In a non-terrestrial communication system, because a base station is far away from a terminal, the radius of a cell can reach more than 500km, even 1500km, and a time delay range indicated by the existing NR standard cannot meet the requirement.

Aiming at the problem that the time delay range indicated by the NR standard can not meet the requirement, the invention provides a new Random Access channel (PRACH) flow, so that the existing Random Access Response (RAR) technology can be reused to indicate the uplink timing advance range of the terminal.

Disclosure of Invention

The application provides a random access timing advance indicating method and equipment, which solve the problems that the uplink timing advance value indicated in the random access response has a small range and cannot meet the requirements of a non-ground communication system. Considering the larger cell radius of the non-terrestrial communication NTN, the scheme is preferably applied to the initial random access procedure.

In a first aspect, an embodiment of the present application provides a method for indicating a random access timing advance, including the following steps:

respectively presetting or configuring 1 time offset value t (N) for N types of PRACH resources or signaling, wherein N is 1-N;

using the i-type PRACH resource to carry a signal representing a random access request;

when TA-t (i) is greater than the threshold value, changing to using the j-th type PRACH resource to bear the signal representing the random access request until TA-t (j) is less than the threshold value;

wherein i is not equal to j, i, j ∈ [1, N ], TA is uplink timing advance;

at this time, t (j) > t (i).

Preferably, j ═ i + 1; further preferably, when j > i, t (j) > t (i).

In an embodiment of the present application, the PRACH resources are classified according to at least one of a preamble sequence code, a time resource, and a frequency resource.

Or, in an embodiment of the present application, the PRACH resources are classified according to a combination of at least 2 kinds of information in a preamble sequence code, a time resource, and a frequency resource.

Preferably, the classification of the PRACH resources is pre-configured and/or signalling configured.

The method of the application is used for network equipment and comprises the following steps:

receiving a signal representing a random access request at an i-th type PRACH resource;

determining a TA value according to the characteristics of the random access request signal;

determining the signaling value as TA-t (i);

and if the signaling value is less than or equal to the threshold value, sending a random access response containing information for indicating the signaling value.

The method of the application is applied to network equipment, and further comprises the following steps:

if the signaling value is larger than the threshold value, no random access response is sent; or, the signaling value is greater than the threshold value, a random access response is sent, and the indicated signaling value is invalid.

The method is used for the terminal equipment and comprises the following steps:

transmitting a signal representing a random access request on the ith type PRACH resource;

receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

if the signaling value is valid, TA is determined to be the signaling value + t (i).

The method is used for the terminal equipment and further comprises the following steps:

and if the random access response of the ith type of PRACH resource is not received or an effective signaling value is not received, a signal representing a random access request is sent in the jth type of PRACH resource.

In a second aspect, an embodiment of the present application further provides a network device, configured to:

receiving a signal representing a random access request at an i-th type PRACH resource;

determining a TA value according to the characteristics of the random access request signal;

determining the signaling value as TA-t (i);

and if the signaling value is less than or equal to the threshold value, sending a random access response containing information for indicating the signaling value.

Further, the network device is further configured to:

if the signaling value is larger than the threshold value, no random access response is sent; or, the signaling value is greater than the threshold value, a random access response is sent, and the indicated signaling value is invalid.

An embodiment of the present application further provides a network device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of the embodiments of the present application applicable to a network device.

In a third aspect, the present application further provides a terminal device, configured to implement the method according to any embodiment of the present application, where the terminal device is configured to:

transmitting a signal representing a random access request on the ith type PRACH resource;

receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

if the signaling value is valid, TA is determined to be the signaling value + t (i).

Further, the terminal device is further configured to:

and if the random access response of the ith type of PRACH resource is not received or an effective signaling value is not received, a signal representing a random access request is sent in the jth type of PRACH resource.

An embodiment of the present application further provides a terminal device, including: the terminal device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the method of any one embodiment of the application which can be used for the terminal device when being executed by the processor.

In a fourth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application.

In a fifth aspect, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

in the 3GPP NR standard, the maximum TA value indicated by the random access response is different under different subcarrier spacing conditions, for example, the subcarrier spacing is in the range of 15kHz to 240kHz, and the corresponding maximum distance compensation range is 18.75 km to 300 km. In a non-ground communication system, because the distance between a base station and a terminal is long, the real timing advance TA of the terminal is far larger than the TA range which can be indicated by the base station.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a flow chart of an embodiment of the method of the present application;

FIG. 2 is a flow chart of an embodiment of the method of the present application for a network device;

FIG. 3 is a flowchart of an embodiment of a method of the present application for a terminal device;

FIG. 4 is a flow chart of another embodiment of the method of the present application for a terminal device;

FIG. 5 is a schematic diagram of an embodiment of a network device;

FIG. 6 is a schematic diagram of an embodiment of a terminal device;

fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention;

fig. 8 is a block diagram of a terminal device of another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

FIG. 1 is a flow chart of an embodiment of the method of the present application;

step 101, respectively presetting or configuring 1 time offset value t (N) for N-type PRACH resources, where N is 1-N;

when the method of the application is used for a network device (such as a base station) and a terminal device, the PRACH resource is used for carrying a random access request signal and/or a random access response signal.

The PRACH resources may be defined by a random access preamble sequence (preamble) code, and random access time and frequency resources.

In the present application, N is a positive integer without limiting the range, which indicates the actual number of resource classifications that meet the requirement, and may be considered as a ratio of not less than the maximum time difference to the threshold. For example, the maximum time difference according to non-terrestrial communication is 10.3ms, and when the threshold value is 1ms, N is 11 at maximum.

For the nth type of PRACH resources, the preset or signaling configured time offset value is t (N). t (n) can be appointed by a protocol and recorded in the data of the base station and the terminal equipment; t (n) may also be a time offset value indicated by higher layer signaling.

102, bearing a signal representing a random access request by using an ith type PRACH resource;

the terminal equipment sends a random access request, and the network equipment (base station) receives the random access request and sends a random access response. In the prior art, according to the characteristics of the received random access request signal, the network device can measure the one-way time delay between 1 or more terminal devices and the base station, so as to obtain the value of the estimated uplink Timing Advance (TA).

103, when TA-t (i) is greater than the threshold, changing to using the j-th PRACH resource to carry the signal representing the random access request until TA-t (j) is less than the threshold, wherein i ≠ j, i, j ∈ [1, N ], at this time, t (j) > t (i).

In this application, a maximum value that can be indicated by dedicated indication information (e.g., 3GPP NR standard) of the timing advance in RAR signaling is referred to as a threshold value.

In this application, the value of the random access response indication is referred to as a signaling value. That is, the information for indicating the signaling value may be, for example, dedicated indication information in the related art 3GPP NR standard. Therefore, the maximum value of the signaling value is the threshold value. That is, the threshold value is the maximum value of the TA that the base station can directly indicate.

And the numerical value indicated by the random access response on the nth type PRACH resource by the base station is TA-t (n). When there are a series of t (n) values with different sizes and the TA value is greater than the threshold value, an appropriate t (n) value may be selected such that the signaling value TA-t (n) is less than the threshold value.

In step 103, i, j ∈ [1, N ] represents an integer in the range of 1 to N for both i and j.

Preferably, j ═ i + 1; further preferably, when j > i, t (j) > t (i). And dividing the random access resources into N types, selecting the type 1 random access resources by the terminal, and increasing the time offset value corresponding to each type 1 random access resource until the proper random access resource is selected.

In an embodiment of the present application, the PRACH resources are classified according to at least one of a preamble sequence code, a time resource, and a frequency resource.

For example, when the PRACH resources are classified according to preamble sequence codes, there are 64 preamble sequence codes that can be used, and the preamble sequence codes are classified into 8 classes, each of which includes 8 sequences. When any sequence is used, it can be known to be an nth type PRACH resource.

For another example, the PRACH resources are classified according to time resources. Different time units (or time slots, time slot combinations) are classified into N classes, and the time units occupy the same frequency resource.

For another example, the PRACH resources are classified according to frequency resources. Different frequency bins (e.g., frequency bands, or combinations of frequency bands) are classified into N classes, and the frequency bins occupy the same time resource.

In the embodiment of the present application, the PRACH resources may also be classified according to a combination of at least 2 kinds of information in a preamble sequence code, a time resource, and a frequency resource.

For example, the PRACH resources are classified by a combination of time and frequency resources. The time domain and the frequency domain are divided into N types of spaces, and each type 1 space occupies a certain time range and frequency range.

For another example, the PRACH resources are classified according to a combination of a preamble sequence code, a time resource, and a frequency resource. When the time domain and the frequency domain are divided into a plurality of time-frequency domain spaces and the preamble sequence codes are divided into a plurality of groups, each 1 time-frequency domain space also corresponds to 1 or more groups of preamble sequence codes, or each 1 group of preamble codes corresponds to 1 or more time-frequency domain spaces.

In an embodiment of the application, the PRACH resource classification is preconfigured and/or signaled.

For example, the terminal device and the network device obtain an indication of the classification of the PRACH resource by pre-configuration.

For another example, the network device sends an indication of the classification of the PRACH resource to the terminal device through signaling.

Fig. 2 is a flowchart of an embodiment of a method of the present application for a network device.

It should be noted that, in the non-terrestrial mobile communication system, if the terminal knows its own position and ephemeris of the base station, it is possible to estimate the distance to the satellite. That is, the terminal has positioning capability and knows the ephemeris of the base station, so that the uplink timing advance of the terminal side can be enhanced.

However, in some cases, the positioning function of the terminal may have some lack of accuracy, such as: the accuracy of terminal positioning is lost; the third-party equipment manages the GNSS to have faults; the GNSS signals have become stuck or are fraudulent. In all these scenarios, the problem of insufficient TA accuracy arises, in which case the source of the problem needs to be identified by the network device; the TA auto-acquisition and correction functions are "disabled" at the terminal side.

The network equipment work flow provided by the application comprises the following steps:

step 201, receiving a signal representing a random access request in an ith type PRACH resource;

the network device receives the random access request.

Step 202, determining a TA value according to the characteristics of the random access request signal;

the network device measures the one-way time delay between 1 or more terminal devices and the network device to obtain an estimated TA value.

Step 203, determining that the signaling value is TA (i) ═ TA-t (i);

the network equipment enables the signaling value to be smaller than the TA value by using a preset or signaling configured time offset value.

Step 204, the signaling value is less than or equal to the threshold value, and a random access response is sent, which includes information for indicating the signaling value.

The method of the application is applied to network equipment, and further comprises the following steps:

step 205, if the signaling value is greater than the threshold value, no random access response is sent; or, the signaling value is greater than the threshold value, a random access response is sent, and the indicated signaling value is invalid.

According to steps 201 to 205, for example, if preset or signaling configuration t (1) ═ 0 is preset, if the base station receives the type 1 random access resource, the estimated TA value is greater than a Threshold (Threshold), and the Threshold is the maximum TA value that can be indicated by the random access response, then the random access response is not sent; if the base station receives the ith type random access resource, and the estimated TA value is larger than the threshold value after subtracting the offset t (i), the base station does not send a random access response; if the estimated TA value minus the offset t (i) is less than a threshold value, the signaling value is indicated.

FIG. 3 is a flowchart of an embodiment of a method of the present application for a terminal device;

the method is used for the terminal equipment and comprises the following steps:

step 301, sending a signal representing a random access request in an ith type PRACH resource;

and the terminal equipment sends the random access request.

Step 302, receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

the terminal device obtains the signaling value ta (i).

In step 303, if the signaling value is valid, TA (TA) (i) + t (i) is determined.

When the computer process is implemented according to the method of the present invention, step 305 is entered.

The method is used for the terminal equipment and further comprises the following steps:

step 304, if the random access response of the i-th type PRACH resource is not received, or an effective signaling value is not received, a signal indicating a random access request is sent in the j-th type PRACH resource.

At this time, t (j) > t (i).

Through steps 301-304, the terminal classifies the random access resources into N categories. Through the ith type of random access resource, if no random access response is received or no effective signaling value is obtained, the terminal selects a random access resource corresponding to a larger time offset value, that is, a random access request is sent and a random access response is received in the jth type of random access resource, and at this time, t (j) > t (i). And repeating the steps until the random access resource of the nth type is received, and receiving the random access response to obtain the effective signaling value.

When the computer process is implemented according to the method of the present invention, let i equal j, go back to step 302.

Step 305, the terminal acquires the valid signaling value and adjusts the timing advance according to the TA for transmission.

For example, the terminal device receives the random access response corresponding to the nth type of random access resource, and obtains an effective signaling value TA (n), and the terminal adjusts the timing advance to transmit according to TA (n) + t (n).

FIG. 4 is a flow chart of another embodiment of the method of the present application for a terminal device;

the method is used for the terminal equipment and comprises the following steps:

step 401, sending a signal indicating a random access request in an i-th type PRACH resource;

and the terminal equipment sends the random access request.

Preferably, t (n) is preset or preconfigured as an increment sequence, and t (1) is 0.

Step 402, receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response;

the terminal device obtains the signaling value ta (i).

In step 403, if the signaling value is valid, TA (i) + t (i) is determined.

When the computer process is implemented according to the method of the present invention, step 405 is entered.

The method is used for the terminal equipment and further comprises the following steps:

step 404, if the random access response of the ith PRACH resource is not received or a valid signaling value is not received, a signal indicating a random access request is sent on the jth PRACH resource, where j is i + 1.

At this time, t (j) > t (i).

Through steps 401 to 404, the terminal divides the random access resources into N categories. If no random access response is received or no valid signaling value is obtained through the ith type of random access resource, the terminal selects a random access resource corresponding to a larger time offset value, that is, a random access request is sent and a random access response is received on the jth type of random access resource, and in this case, j is i +1, t (j) > t (i). And repeating the steps until the random access resource of the nth type is received, and receiving the random access response to obtain the effective signaling value.

When the computer process is implemented according to the method of the present invention, let i equal j, go back to step 402.

Step 405, the terminal adjusts the timing advance according to the TA to send the valid signaling value.

For example, the terminal device receives the random access response corresponding to the nth type of random access resource, and obtains an effective signaling value TA (n), and the terminal adjusts the timing advance to transmit according to TA (n) + t (n).

With the methods of fig. 1 to 4, for example, when the distance between the terminal and the base station is 300km and the subcarrier spacing is 30kHz, the radius of the cell supported by the random access response is 150km, according to the method of the present application, the terminal can perform multiple transmissions of preamble sequences and receptions of random access responses.

Taking the embodiments shown in fig. 1-2 and 4 as examples, a terminal is an edge user, first selects a type 1 random access resource to access, a base station receives a random access request, estimates a TA, and presets or configures a time offset t (1) to be 0, if the TA (e.g. 1.2ms) to be indicated is greater than a maximum range (e.g. 30kHz subcarrier interval, the maximum indicated TA is 1ms) that can be indicated by a random access response, the terminal does not send the random access response, selects a type 2 random access resource to access, and after receiving the random access resource, estimates the TA again, and subtracts the time offset t (2) corresponding to the preset or configured type 2 random access resource to be 0.3ms from the TA (e.g. 1.2ms) to be indicated to obtain a value TA (2) to be indicated to be 0.9ms and indicates to the terminal, after the terminal detects the signaling value, the terminal adds the detected signaling value (0.9ms) to the time offset (0.3ms) corresponding to the 2 nd random access resource to obtain the final TA value of 1.2 ms.

Fig. 5 is a schematic diagram of an embodiment of a network device.

An embodiment of the present application further provides a network device, where, using the method according to any one of the embodiments of the present application, the network device is configured to: receiving a signal representing a random access request at an i-th type PRACH resource; determining a TA value according to the characteristics of the random access request signal; determining the signaling value as TA-t (i); and if the signaling value is less than or equal to the threshold value, sending a random access response containing information for indicating the signaling value.

Further, the network device is further configured to: if the signaling value is larger than the threshold value, no random access response is sent; or, the signaling value is greater than the threshold value, a random access response is sent, and the indicated signaling value is invalid.

In order to implement the foregoing technical solution, the network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403. And the network sending module is used for generating information indicating the signaling value and sending the random access response. The network determining module is used for determining the timing advance and calculating a signaling value. The network receiving module is used for receiving a random access request. The network receiving module is further configured to receive a signaling configuration (e.g., a semi-static configuration signaling RRC) and obtain a time offset value. Further, the network receiving module is further configured to receive uplink data according to the timing advance. Further, the network receiving module is further configured to receive a PRACH resource classification configured by a high-level signaling.

The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods shown in fig. 1 to 4, and will not be described herein again.

Fig. 6 is a schematic diagram of an embodiment of a terminal device.

The present application further provides a terminal device, which, using the method of any one of the embodiments of the present application, is configured to send a signal indicating a random access request in an i-th PRACH resource; receiving a random access response of the ith type of PRACH resource and information used for indicating a signaling value in the random access response; if the signaling value is valid, TA is determined to be the signaling value + t (i).

Further, the terminal device is further configured to: and if the random access response of the ith type of PRACH resource is not received or an effective signaling value is not received, a signal representing a random access request is sent in the jth type of PRACH resource.

In order to implement the foregoing technical solution, the terminal device 500 provided in the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503. The terminal receiving module is used for receiving the random access response and the information of the identification indication signaling value; further, the terminal receiving module is further configured to receive the signaling configuration (e.g., semi-static configuration signaling RRC) to obtain a time offset value. Further, the terminal receiving module is further configured to receive a PRACH resource classification configured by a high-level signaling or a dynamic signaling. And the terminal determining module is used for calculating the timing advance. And the terminal sending module is used for sending the random access request. And the terminal sending module is also used for sending uplink data according to the timing advance.

The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is described in the embodiments of the methods shown in fig. 1 to 4 of the present application, and is not described herein again.

The terminal equipment can be mobile terminal equipment.

Based on the embodiments of fig. 5 to 6, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.

Fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in fig. 7, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program for executing any of the embodiments of fig. 1 to 3 of the present application, which is run or changed on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described herein.

Fig. 8 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 shown in fig. 8 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.

The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.

In the embodiment of the present invention, the memory 702 contains a computer program for executing any one of the embodiments of fig. 1 to 3 of the present application, and the computer program runs or changes on the processor 701.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has stored thereon a computer program, which when executed by the processor 701 implements the steps of the method embodiment as described above with reference to any one of the embodiments of fig. 1 to 4.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the memory 603, 702 of the present invention may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM).

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.