阅读说明：本技术 无线通信方法及频率分配装置 (Wireless communication method and frequency allocation device ) 是由 张敏 王大鹏 张瑞艳 郭春霞 于 2019-03-11 设计创作，主要内容包括：本发明提供了一种无线通信方法及频率分配装置,本发明提供的无线通信方法,通过在移动通信系统间进行合理的频率分配,提高了频率利用率以及设备利用率。另外,本发明还根据干扰情况,对分配好的各个移动通信系统的工作频段进行调整,可以减小工作在目标频段上的移动通信系统与工作在所述目标频段的外延频段上的其他系统之间的干扰。(The invention provides a wireless communication method and a frequency allocation device, and the wireless communication method provided by the invention improves the frequency utilization rate and the equipment utilization rate by reasonably allocating frequencies among mobile communication systems. In addition, the invention also adjusts the working frequency band of each allocated mobile communication system according to the interference condition, so as to reduce the interference between the mobile communication system working on the target frequency band and other systems working on the extension frequency band of the target frequency band.)

1. A method of wireless communication, comprising:

determining a first frequency range supported by a first type base station in a target frequency range according to the equipment support capability of the deployed first type base station in the existing network, wherein the first type base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network;

determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective;

determining whether the first frequency band range and the second frequency band range overlap;

when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

and issuing the distributed working frequency band to the corresponding base station so that the base station can use the received working frequency band to carry out wireless communication.

2. The method of claim 1, wherein when the first frequency band range and the second frequency band range overlap, the method further comprises:

setting a continuous first sub-frequency band according to the size of the first bandwidth; setting a continuous second sub-frequency band according to the size of the second bandwidth;

according to the first frequency band range and the second frequency band range, the first frequency sub-band and the second frequency sub-band are respectively arranged at two ends of the target frequency band, so that the first frequency sub-band is located in the first frequency band range, the second frequency sub-band is located in the second frequency band range, and the first frequency sub-band and the second frequency sub-band are not overlapped;

dividing an intermediate frequency band into a third frequency sub-band used by the first mobile communication system and a fourth frequency sub-band used by the second mobile communication system according to the load of the current network, wherein the intermediate frequency band is a continuous frequency band between the first frequency sub-band and the second frequency sub-band in the target frequency band, and the bandwidth sizes of the third frequency sub-band and the fourth frequency sub-band are greater than or equal to 0;

and determining the working frequency band of the first type base station according to the first sub-frequency band and the third sub-frequency band, and determining the working frequency band of the second type base station according to the second sub-frequency band and the fourth sub-frequency band.

3. The method of claim 2, wherein the step of dividing the middle band into a third sub-band for the first mobile communication system and a fourth sub-band for the second mobile communication system according to the load of the existing network comprises:

when the load of the existing network is larger than a first threshold, taking all the intermediate frequency bands as the third sub-frequency bands;

when the load of the existing network is lower than a second threshold, taking all the intermediate frequency bands as the fourth sub-frequency bands, wherein the second threshold is smaller than the first threshold;

and when the load size of the current network is between the first threshold and the second threshold, dividing a part of frequency bands of the intermediate frequency band into a third frequency sub-band, and taking the rest part of the frequency sub-band as a fourth frequency sub-band, wherein the size of the third frequency sub-band is positively correlated with the load size of the current network.

4. The method according to any of claims 1 to 3, wherein before the step of sending the allocated operating band to the corresponding base station, the method further comprises:

judging whether the interference of the first mobile communication system and the second mobile communication system to other mobile communication systems working on the extension frequency band of the target frequency band exceeds a preset threshold value or not;

and when the preset threshold value is exceeded, adjusting the positions of the working frequency bands of the first mobile communication system and the second mobile communication system on the target frequency band so as to enable the interference not to exceed the preset threshold value, and obtaining the adjusted working bandwidth.

5. The method of claim 4, wherein the target frequency band is a B41 frequency band, the first mobile communication system is an LTE system, and the second mobile communication system is a New air interface (NR) system.

6. A frequency allocation apparatus, comprising:

the system comprises a processor, a first base station and a second base station, wherein the processor is used for determining a first frequency range supported by the first base station in a target frequency range according to the equipment support capability of the deployed first base station in the current network, and the first base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network; determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective; determining whether the first frequency band range and the second frequency band range overlap; when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

and the transceiver is used for transmitting the distributed working frequency band to the corresponding base station so that the base station can use the received working frequency band to carry out wireless communication.

7. The frequency allocation apparatus of claim 6,

the processor is further configured to set a continuous first sub-band according to the size of the first bandwidth when determining that the working frequency bands of the first mobile communication system and the second mobile communication system overlap according to the first frequency band range, the second frequency band range, the first bandwidth, and the second bandwidth; setting a continuous second sub-frequency band according to the size of the second bandwidth; according to the first frequency band range and the second frequency band range, the first frequency sub-band and the second frequency sub-band are respectively arranged at two ends of the target frequency band, so that the first frequency sub-band is located in the first frequency band range, the second frequency sub-band is located in the second frequency band range, and the first frequency sub-band and the second frequency sub-band are not overlapped; dividing an intermediate frequency band into a third frequency sub-band used by the first mobile communication system and a fourth frequency sub-band used by the second mobile communication system according to the load of the current network, wherein the intermediate frequency band is a continuous frequency band between the first frequency sub-band and the second frequency sub-band in the target frequency band, and the bandwidth sizes of the third frequency sub-band and the fourth frequency sub-band are greater than or equal to 0; and determining the working frequency band of the first type base station according to the first sub-frequency band and the third sub-frequency band, and determining the working frequency band of the second type base station according to the second sub-frequency band and the fourth sub-frequency band.

8. The frequency allocation apparatus of claim 7,

the processor is further configured to, when the load of the existing network is greater than a first threshold, use all of the intermediate frequency band as the third frequency sub-band; when the load of the existing network is lower than a second threshold, taking all the intermediate frequency bands as the fourth sub-frequency bands, wherein the second threshold is smaller than the first threshold; and when the load size of the current network is between the first threshold and the second threshold, dividing a part of frequency bands of the intermediate frequency band into a third frequency sub-band, and taking the rest part of the frequency bands as a fourth frequency sub-band, wherein the size of the third frequency sub-band is positively correlated with the load size of the current network.

9. Frequency allocation arrangement according to any of the claims 6 to 8,

the processor is further configured to determine whether interference of the first mobile communication system and the second mobile communication system to other mobile communication systems operating on the extended frequency band of the target frequency band exceeds a predetermined threshold before the allocated operating frequency band is transmitted to the corresponding base station; and when the preset threshold value is exceeded, adjusting the positions of the working frequency bands of the first mobile communication system and the second mobile communication system on the target frequency band so as to enable the interference not to exceed the preset threshold value, and obtaining the adjusted working bandwidth.

10. The frequency allocation apparatus of claim 9, wherein the target frequency band is a B41 frequency band, the first mobile communication system is an LTE system, and the second mobile communication system is a new air interface NR system.

11. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the wireless communication method according to any of claims 1 to 5.

12. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the wireless communication method according to one of claims 1 to 5.

Technical Field

The embodiment of the invention relates to the technical field of wireless communication, in particular to a wireless communication method and a frequency allocation device.

Background

In the evolution of the Fourth Generation mobile communication System (4G) to 5G, how frequencies are allocated within the 4G/5G System is important.

As shown in fig. 1, taking 2.6GHz, B41 frequency band as an example, the current allocation situation of 4G frequency in china among operators is as follows: china mobile uses a bandwidth of 2575-2635 MHz and 60MHz, China Unicom uses a bandwidth of 2555-2575 MHz and 20MHz, and China telecom uses a bandwidth of 2635-2655 MHz and 20 Hz. The lower end of the B41 band (i.e., the end with the smaller frequency value in the B41 band) also has a bandwidth of 40MHz, and the upper end (i.e., the end with the larger frequency value in the B41 band) also has a bandwidth of 20MHz that is not allocated temporarily. Other wireless communication systems, such as a beidou system below 2500MHz and a radar system above 2700MHz, operate in an extended band of the B41 band (i.e., a band adjacent to the B41 band, outside the B41 band).

In the process of transition to 5G, the 4G system and the 5G system coexist for a long time, and at this time, the whole 2515-2675 MHz of the B41 frequency band may be used as the operating frequency of the 5G system, and how to allocate the operating frequencies of the 4G system and the 5G system becomes very important.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a wireless communication method and a frequency allocation apparatus, which implement reasonable frequency allocation between mobile communication systems and improve the frequency and the utilization rate of devices.

The embodiment of the invention provides a wireless communication method, which comprises the following steps:

determining a first frequency range supported by a first type base station in a target frequency range according to the equipment support capability of the deployed first type base station in the existing network, wherein the first type base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network;

determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective;

determining whether the first frequency band range and the second frequency band range overlap;

when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

and issuing the distributed working frequency band to the corresponding base station so that the base station can use the received working frequency band to carry out wireless communication.

An embodiment of the present invention further provides a frequency allocation apparatus, including:

the system comprises a processor, a first base station and a second base station, wherein the processor is used for determining a first frequency range supported by the first base station in a target frequency range according to the equipment support capability of the deployed first base station in the current network, and the first base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network; determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective; determining whether the first frequency band range and the second frequency band range overlap; when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

and the transceiver is used for transmitting the distributed working frequency band to the corresponding base station so that the base station can use the received working frequency band to carry out wireless communication.

An embodiment of the present invention further provides a communication 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 wireless communication method as described above.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method are implemented as described above.

The wireless communication method and the frequency allocation device provided by the embodiment of the invention improve the frequency utilization rate and the equipment utilization rate by reasonably allocating the frequency among the mobile communication systems. In addition, the embodiment of the invention also adjusts the working frequency band of each allocated mobile communication system according to the interference condition, so that the interference between the mobile communication system working on the target frequency band and other systems working on the extension frequency band of the target frequency band can be reduced.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic diagram illustrating an allocation of a B41 frequency band in the prior art;

fig. 2 is a schematic view of an application scenario of the wireless communication method according to the embodiment of the present invention;

fig. 3 is a flowchart of a wireless communication method according to an embodiment of the present invention;

FIG. 4 is an exemplary diagram of a frequency allocation provided in an embodiment of the present invention;

fig. 5 is a diagram illustrating an exemplary inter-system interference provided in an embodiment of the present invention;

fig. 6 is one of structural diagrams of a frequency allocation apparatus of an embodiment of the present invention;

fig. 7 is a second structural diagram of a frequency allocation apparatus according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The first mobile communication system and the second mobile communication system described herein are communication systems of two different standards, including but not limited to any two of 3G, 4G, or 5G mobile communication systems. For example, the 4G system specifically includes two LTE systems, TD-LTE and FDD-LTE, and the 5G system is an NR system. The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a 4G LTE system and a 5G NR system for purposes of example, and LTE and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 2, fig. 2 shows an application scenario of the wireless communication method according to the embodiment of the present invention, where the application scenario includes a radio frequency allocation module, and the radio frequency allocation module may be disposed at a core network or at a network management OAM. In fig. 2, the radio frequency allocation module allocates radio frequencies, and issues the frequency allocation result to each base station through the centralized operation maintenance system, where the base stations may include a currently deployed 4G base station and a subsequently deployed 5G base station in the current network, and thus each base station may determine its own operating frequency band according to the frequency issued by the radio frequency allocation module, and perform operation on the operating frequency band.

It should be noted that the base station described in the embodiment of the present invention may be a base station of 3G, 4G, 5G and later releases (e.g., a gNB, a 5G NR NB, etc.), or a base station in another communication system (e.g., an eNB, a WLAN access point, or another access point, etc.). For example, in some mobile communication systems, a Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, and the Base Station is not limited to a specific technical vocabulary as long as the same technical effect is achieved.

The first type of base station in the first mobile communication system with the first standard deployed in the existing network needs to gradually transit from the first mobile communication system in the existing network to the second mobile communication system due to network upgrade, wherein in the transition process, the second type of base station in the second mobile communication system with the second standard needs to be further deployed. For example, the first mobile communication system of the first standard may be a 4G system, such as a TD-LTE system or an FDD-LTE system, and the second mobile communication system of the second standard may be a 5G NR system.

When two mobile communication systems of different standards exist in the existing network and can work in all or part of the target frequency band, the frequency bands of the two mobile communication systems need to be allocated, and the working frequency band of each mobile communication system in the target frequency band is determined. The embodiment of the invention provides a wireless communication method which can be used for allocating working frequency bands for the mobile communication system. Referring to fig. 3, a wireless communication method according to an embodiment of the present invention includes:

step 31, determining a first frequency range supported by a first type base station in a target frequency range according to the equipment support capability of the deployed first type base station in the current network; and determining at least a first bandwidth required by the first mobile communication system according to the load of the current network.

Here, the first type of base station is a first mobile communication system of a first standard, for example, the first mobile communication system may be a 4G system, such as a TD-LTE system or an FDD-LTE system. In step 31, according to the device supporting capability of the first class base station for the frequency band, a first frequency band range supported by the first class base station in the target frequency band is determined. In general, the first frequency range may be obtained by intersecting frequency bands that can be supported by each base station in the first class of base stations. In addition, in step 31, the minimum bandwidth (first bandwidth) required by the first mobile communication system under the current network load is also determined according to the current network load. Generally, the larger the load is, the larger the required minimum bandwidth is, and specifically, the corresponding relationship between the load and the minimum bandwidth may be determined according to the current network operation data and the like.

Step 32, determining a second frequency range supported by a second base station in the target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining at least a second bandwidth required by the second mobile communication system based on the network planning objective.

Here, the second mobile communication system may be a 5G NR system, and the target frequency band may be a B41 frequency band. Similarly, in step 32, a second frequency band range supported by the second type base station in the target frequency band is determined according to the frequency band support capability of the second type base station. In general, the second frequency range may be obtained by intersecting frequency bands that can be supported by each base station in the second class of base stations. In addition, in step 32, at least a second bandwidth required by the second mobile communication system is determined based on the network planning objective. For example, in the transition process of network upgrade, the minimum bandwidth (second bandwidth) required by the second mobile communication system may be set according to the deployment plan of the deployment number of the second type base stations in the network planning target. Specifically, in the process of gradually increasing the number of the second type base stations, the second bandwidth may be gradually increased.

Step 33, determining whether the first frequency range and the second frequency range overlap.

Here, after determining the first frequency range and the second frequency range, it may be determined whether there is an overlapping frequency range therebetween, and if there is no overlapping frequency range, step 34 is entered.

And step 34, when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with a size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with a size not smaller than the second bandwidth to the second class base station in the second frequency range.

Here, since there is no overlapping frequency band between the first frequency band range and the second frequency band range, the operating frequency band with the minimum bandwidth required by each type of base station can be directly allocated from the frequency band range supported by each base station.

And step 35, issuing the allocated working frequency band to a corresponding base station so that the base station can use the received working frequency band for wireless communication.

Here, after the working frequency bands of the various base stations are allocated, the corresponding working frequency bands may be sent to the various base stations, and specifically, the information of the working frequency bands corresponding to the various base stations may be sent to a base station operation and maintenance system (OAM network manager), and then sent to the corresponding base stations by the base station operation and maintenance system, so that each base station may operate according to the allocated working frequency bands.

Through the steps, the embodiment of the invention realizes the frequency allocation among the mobile communication systems.

In step 34, when the first frequency range and the second frequency range do not overlap, an operating frequency range not less than the minimum required bandwidth is allocated to each type of base station, so that the frequency utilization rate and the equipment utilization rate can be improved.

Preferably, the target frequency band according to the embodiment of the present invention may be a B41 frequency band, the first mobile communication system is an LTE system, and the second mobile communication system is a new air interface NR system.

In step 33, when it is determined that there is an overlapping frequency band between the first frequency band range and the second frequency band range, the embodiment of the present invention may further proceed to the following steps S1 to S4 to allocate the frequency, and after completing the frequency allocation, proceed to step 35 above to issue the allocated working frequency band to the corresponding base station:

s1, setting a continuous first sub-frequency band according to the first bandwidth size; and setting a continuous second sub-frequency band according to the size of the second bandwidth.

S2, according to the first frequency range and the second frequency range, the first sub-band and the second sub-band are respectively arranged at two ends of the target frequency range, so that the first sub-band is located in the first frequency range, the second sub-band is located in the second frequency range, and the first sub-band and the second sub-band are not overlapped.

And S3, dividing the intermediate frequency band into a third frequency sub-band used by the first mobile communication system and a fourth frequency sub-band used by the second mobile communication system according to the load of the current network, wherein the intermediate frequency band is a continuous frequency band between the first frequency sub-band and the second frequency sub-band in the target frequency band, and the bandwidth of the third frequency sub-band and the bandwidth of the fourth frequency sub-band are greater than or equal to 0.

Here, in S3, one way to divide the third and fourth sub-bands is:

when the load of the existing network is larger than a first threshold, taking all the intermediate frequency bands as the third sub-frequency bands;

when the load of the existing network is lower than a second threshold, taking all the intermediate frequency bands as the fourth sub-frequency bands, wherein the second threshold is smaller than the first threshold;

and when the load size of the current network is between the first threshold and the second threshold, dividing a part of frequency bands of the intermediate frequency band into a third frequency sub-band, and taking the rest part of the frequency sub-band as a fourth frequency sub-band, wherein the size of the third frequency sub-band is positively correlated with the load size of the current network.

S4, determining the working frequency band of the first kind of base station according to the first sub-frequency band and the third sub-frequency band, and determining the working frequency band of the second kind of base station according to the second sub-frequency band and the fourth sub-frequency band.

Through the steps, the embodiment of the invention realizes the frequency allocation when the first frequency range and the second frequency range are overlapped, preferentially ensures the working requirement of the existing equipment of the existing network and improves the utilization rate of the equipment. In addition, when the intermediate frequency band is distributed, the distribution is carried out according to the load of the current network, so that the frequency utilization rate is improved, and the influence on the service of the current network can be reduced.

Further, it is considered that there may be other mobile communication systems on the extension frequency band of the target frequency band, and these other mobile communication systems operate on the extension frequency band, and therefore, interference may occur between the first and second mobile communication systems. Here, the extension frequency band refers to a frequency band at both ends of the target frequency band and adjacent to the target frequency band.

Preferably, between the step 34 and the step 35, and between the step S4 and the step 35, the following processing may be performed to perform the processing of the inter-system interference:

a1, determining whether the interference of the first mobile communication system and the second mobile communication system to other mobile communication systems working on the extension frequency band of the target frequency band exceeds a predetermined threshold.

Here, the inter-system interference may be obtained by an interference measurement method in the prior art, and the predetermined threshold may also be set according to a specific interfering system and a specific interfered system, which is not specifically limited in the embodiment of the present invention.

A2, when the predetermined threshold is exceeded, adjusting the positions of the operating frequency bands of the first mobile communication system and the second mobile communication system on the target frequency band so that the interference does not exceed the predetermined threshold, obtaining an adjusted operating bandwidth, and then entering step 35.

Here, the operating frequency band may be adjusted according to interference characteristics of the first mobile communication system and the second mobile communication system to an external frequency band.

A3, when the predetermined threshold is not exceeded, step 35 is entered.

To facilitate a better understanding of the above embodiments, a specific example is given further below.

Taking 2.6G frequency as an example, frequency allocation between the 4G system (specifically, LTE system, i.e., first mobile communication system) and the 5G system (specifically, NR system, i.e., second mobile communication system) is performed:

1) according to the support capability of the 4G equipment in the current network of China Mobile, the working frequency band of the 4G equipment is determined to be 2575-2635 MHz (the first frequency band range).

2) According to the current network load situation, the working bandwidth of the 4G frequency is determined to be 20/40/60MHz, namely the minimum bandwidth is 20MHz (first bandwidth).

3) According to the device support capability, the working frequency band of the 5G device is defined: the working frequency range is 2515-2575 MHz (second frequency range).

4) And according to the network planning equipment target, determining the minimum operating band of the 5G equipment to be 80MHz (second bandwidth).

5) To clarify the overlapping region of 4G and 5G, the following principle needs to be satisfied:

a) overlap of 4G and 5G is minimized.

b) If overlap is required (there is overlap between the first and second frequency range):

i. firstly, ensuring that 4G on-line equipment can be continuously used; therefore, the working frequency point of the 4GLTE at least comprises 20MHz of 2575-2635 MHz.

And ii, adjusting the working frequency point of the 5G equipment according to the use condition of the 4G equipment, and giving a possible solution. One is the lower end of the LTE at 2575-2635 MHz, and the other is the upper end of the LTE at 2575-2635 MHz. However, if the LTE is placed at the lower end, the 5G spectrum is placed at the upper end, and the bandwidth of the spectrum can only be 80MHz (2595-2675 MHz) at most, which is not in accordance with the principle that the 5G uses a large bandwidth. Therefore, the working frequency band of the LTE system in the example is placed at the upper end of 2575-2635 MHz.

6) A preliminary frequency usage scheme is given, as shown in fig. 4:

a) when the current network load is low, such as lower than a second threshold, the operating frequency band of the LTE system is located at 20MHz (i.e., D3 in fig. 4) at the upper end of 2575-2635 MHz, i.e., 2615-2635 MHz; the working frequency band of the NR system is 100MHz at the lower end of 2575-2635 MHz, namely 2515-2615 MHz. At this time, the LTE system guarantees only its minimum required operating bandwidth of 20 MHz.

b) When the load of the existing network is very high, such as being higher than a first threshold, the working frequency band of the LTE system is located at 40MHz (namely, D2+ D3 in fig. 4) at the upper end of 2575-2635 MHz, namely, 2595-2635 MHz; the working frequency band of the NR system is 80MHz at the lower end of 2575-2635 MHz, namely 2515-2595 MHz. At this time, the NR system guarantees only its minimum required operating bandwidth of 80 MHz.

c) When the current network load is high, for example, between the first threshold and the second threshold, at this time, it is necessary to ensure a minimum required operating bandwidth of 80MHz for the NR system and a minimum required operating bandwidth of 20MHz for the LTE system (i.e., at D3 in fig. 4), for a bandwidth portion of an intermediate frequency band, i.e., 2595-2615 MHz, flexible allocation may be performed according to the current network load, and the larger the current network load is, more bandwidths in the intermediate frequency band are allocated to the LTE system; conversely, more bandwidth in the intermediate band may be allocated to the NR system.

7) Judging whether an LTE system/NR system and a peripheral system working in a B41 frequency band have interference risks or not; if not, the process is ended. If further, the frequency usage scheme may be adjusted.

Specifically, consider that the lower extreme of B41 frequency channel is nearer with beidou system frequency channel distance, have certain interference risk, disturb and divide into stray interference and block the interference:

stray interference: since the bandwidth of the 5G NR device filter is 160MHz, the size of the NR carrier wave is basically consistent to the size of the spurious interference at 2500MHz no matter the NR carrier wave is placed at the low end or the high end of B41; it is difficult to mitigate/resolve the spurious interference by adjusting the frequency point location. Here, stray interference can be solved from the source by limiting the stray indexes of the D-band base station device in the beidou band.

Blocking interference: when the equipment capability is fixed, the interference strength is directly related to the frequency interval between two systems, and the closer the distance, the higher the interference degree. The existing network already has a batch of Beidou equipment. When the NR carrier is placed at the low end and the TD-LTE carrier is placed at the high end: the degree of interference is relatively high. When the NR carrier is placed at the high end, the TD-LTE carrier is at the low end and 1 to 2 carriers are idle: the degree of interference is relatively low.

According to the analysis, if the LTE or NR system interferes with the beidou terminal, the blocking interference becomes a bottleneck as long as the device spurious indicators satisfy-40 dBm/mhz (trp). In summary, if the 5G NR device generates blocking interference to the beidou in the future, the frequency usage scheme 2 shown in fig. 5 may be adopted, and the frequency point of the 5G NR is adjusted to the high end, and the frequency band of the TD-LTE is adjusted to the low end to relieve/solve the interference.

Various methods of embodiments of the present invention have been described above. An apparatus for carrying out the above method is further provided below.

An embodiment of the present invention provides a frequency allocation apparatus shown in fig. 6. Referring to fig. 6, an embodiment of the present invention provides a frequency allocation apparatus 60, including:

a processor 61, configured to determine, according to a device support capability of a first class base station deployed in an existing network, a first frequency range supported by the first class base station in a target frequency band, where the first class base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network; determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective; determining whether the first frequency band range and the second frequency band range overlap; when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

and a transceiver 62, configured to issue the allocated operating frequency band to a corresponding base station, so that the base station performs wireless communication using the received operating frequency band.

Preferably, the processor 61 is further configured to set a continuous first sub-band according to the size of the first bandwidth when determining that the working frequency bands of the first mobile communication system and the second mobile communication system overlap according to the first frequency band range, the second frequency band range, the first bandwidth, and the second bandwidth; setting a continuous second sub-frequency band according to the size of the second bandwidth; according to the first frequency band range and the second frequency band range, the first frequency sub-band and the second frequency sub-band are respectively arranged at two ends of the target frequency band, so that the first frequency sub-band is located in the first frequency band range, the second frequency sub-band is located in the second frequency band range, and the first frequency sub-band and the second frequency sub-band are not overlapped; dividing an intermediate frequency band into a third frequency sub-band used by the first mobile communication system and a fourth frequency sub-band used by the second mobile communication system according to the load of the current network, wherein the intermediate frequency band is a continuous frequency band between the first frequency sub-band and the second frequency sub-band in the target frequency band, and the bandwidth sizes of the third frequency sub-band and the fourth frequency sub-band are greater than or equal to 0; and determining the working frequency band of the first type base station according to the first sub-frequency band and the third sub-frequency band, and determining the working frequency band of the second type base station according to the second sub-frequency band and the fourth sub-frequency band.

Preferably, the processor 61 is further configured to, when the load of the existing network is greater than a first threshold, use all of the intermediate frequency band as the third frequency sub-band; when the load of the existing network is lower than a second threshold, taking all the intermediate frequency bands as the fourth sub-frequency bands, wherein the second threshold is smaller than the first threshold; and when the load size of the current network is between the first threshold and the second threshold, dividing a part of frequency bands of the intermediate frequency band into a third frequency sub-band, and taking the rest part of the frequency bands as a fourth frequency sub-band, wherein the size of the third frequency sub-band is positively correlated with the load size of the current network.

Preferably, the processor 61 is further configured to determine whether interference of the first mobile communication system and the second mobile communication system to other mobile communication systems operating in the extension frequency band of the target frequency band exceeds a predetermined threshold before the allocated operating frequency band is issued to the corresponding base station; and when the preset threshold value is exceeded, adjusting the positions of the working frequency bands of the first mobile communication system and the second mobile communication system on the target frequency band so as to enable the interference not to exceed the preset threshold value, and obtaining the adjusted working bandwidth.

Preferably, the target frequency band is a B41 frequency band, the first mobile communication system is an LTE system, and the second mobile communication system is a new air interface NR system.

Referring to fig. 7, another structural diagram of a frequency allocation apparatus 700 according to an embodiment of the present invention includes: a processor 701, a transceiver 702, a memory 703, a user interface 704 and a bus interface.

In the embodiment of the present invention, the frequency allocation apparatus 700 further includes: a computer program stored on the memory 703 and executable on the processor 701.

The processor 701 is configured to read a program in a memory, and execute the following processes: determining a first frequency range supported by a first type base station in a target frequency range according to the equipment support capability of the deployed first type base station in the existing network, wherein the first type base station is a base station in a first mobile communication system of a first standard; determining at least a first bandwidth required by the first mobile communication system according to the load of the current network; determining a second frequency range supported by a second base station in a target frequency range according to the equipment support capability of the second base station to be deployed, wherein the second base station is a base station in a second mobile communication system of a second standard; and determining a second bandwidth required by the second mobile communication system at least according to the network planning objective; determining whether the first frequency band range and the second frequency band range overlap; when the first frequency range and the second frequency range are not overlapped, allocating a working frequency range with the size not smaller than the first bandwidth to the first class base station in the first frequency range, and allocating a working frequency range with the size not smaller than the second bandwidth to the second class base station in the second frequency range;

the transceiver 702 is configured to issue the allocated working frequency band to a corresponding base station, so that the base station performs wireless communication using the received working frequency band.

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 703, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 704 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

Preferably, the processor 701 is further configured to set a continuous first sub-band according to the first bandwidth size; setting a continuous second sub-frequency band according to the size of the second bandwidth; according to the first frequency band range and the second frequency band range, the first frequency sub-band and the second frequency sub-band are respectively arranged at two ends of the target frequency band, so that the first frequency sub-band is located in the first frequency band range, the second frequency sub-band is located in the second frequency band range, and the first frequency sub-band and the second frequency sub-band are not overlapped; dividing an intermediate frequency band into a third frequency sub-band used by the first mobile communication system and a fourth frequency sub-band used by the second mobile communication system according to the load of the current network, wherein the intermediate frequency band is a continuous frequency band between the first frequency sub-band and the second frequency sub-band in the target frequency band, and the bandwidth sizes of the third frequency sub-band and the fourth frequency sub-band are greater than or equal to 0; and determining the working frequency band of the first type base station according to the first sub-frequency band and the third sub-frequency band, and determining the working frequency band of the second type base station according to the second sub-frequency band and the fourth sub-frequency band.

Preferably, the processor 701 is further configured to, when the load of the existing network is greater than a first threshold, use all of the intermediate frequency band as the third frequency sub-band; when the load of the existing network is lower than a second threshold, taking all the intermediate frequency bands as the fourth sub-frequency bands, wherein the second threshold is smaller than the first threshold; and when the load size of the current network is between the first threshold and the second threshold, dividing a part of frequency bands of the intermediate frequency band into a third frequency sub-band, and taking the rest part of the frequency sub-band as a fourth frequency sub-band, wherein the size of the third frequency sub-band is positively correlated with the load size of the current network.

Preferably, the processor 701 is further configured to determine whether interference of the first mobile communication system and the second mobile communication system to other mobile communication systems operating in the extension frequency band of the target frequency band exceeds a predetermined threshold; and when the preset threshold value is exceeded, adjusting the positions of the working frequency bands of the first mobile communication system and the second mobile communication system on the target frequency band so as to enable the interference not to exceed the preset threshold value, and obtaining the adjusted working bandwidth.

Preferably, the target frequency band is a B41 frequency band, the first mobile communication system is an LTE system, and the second mobile communication system is a new air interface NR system.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.