CN112118580A

CN112118580A - Spectrum resource allocation method and device

Info

Publication number: CN112118580A
Application number: CN201910529600.XA
Authority: CN
Inventors: 张行健; 徐涵; 季晨荷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-12-22
Also published as: WO2020253307A1

Abstract

The embodiment of the application discloses a method and a device for allocating spectrum resources, wherein the method comprises the following steps: the terminal device determines a first coverage area of each first Access Point (AP) according to physical parameters of each first AP in the M first AP, determines a second coverage area of the second AP according to physical parameters of the second AP, determines a first AP corresponding to a first coverage area overlapping with the second coverage area in the first coverage area of each first AP as an overlapping AP to obtain at least one overlapping AP, and finally determines a frequency band allocated to the second AP from available first frequency bands of the second AP according to the frequency band used by each overlapping AP in the at least one overlapping AP. By adopting the embodiment of the application, the co-channel interference between the APs can be avoided, and the network reliability is enhanced.

Description

Spectrum resource allocation method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating spectrum resources.

Background

Currently, the most common Wireless Local Area Network (WLAN) system is Wi-Fi, which is a wireless local area network based on IEEE 802.11 series standards and using high-frequency radio frequency (e.g., radio electromagnetic waves in frequency bands of 2.4GHz, 5GHz, 60GHz, etc.) as a transmission medium. In a WLAN network, a plurality of Stations (STAs) associate with an Access Point (AP) through a WLAN and access the Internet (Internet) through the AP, and one AP may associate with the plurality of STAs, and the STAs compete for a wireless air interface resource (here, the wireless air interface resource mainly refers to a channel of the AP) according to a certain rule. Therefore, these STAs are likely to collide when contending for the channel of the AP.

Among them, the 802.11 protocol uses a Carrier Sense Multiple Access (CSMA) method to avoid collisions between a plurality of STAs. Each STA listens to the AP whether the channel is free (i.e., whether there are other STAs transmitting data on the channel) before transmitting data. If the channel is idle, the STA transmits the data of the whole data packet on the channel; if the STA monitors that other STAs transmit data on the channel (which indicates that the channel of the AP is busy at this time), the STA enters a backoff stage, that is, waits for the other STAs to stop transmitting data within a random time period, and then monitors whether the channel enters an idle state again, if so, the STA transmits data of the entire data packet when the channel is idle.

When coverage areas of any two APs are overlapped, if frequency bands used by the two APs are also overlapped, one AP will affect network delay of the other AP, and co-channel interference exists at the same time.

Disclosure of Invention

The embodiment of the application provides a method and a device for allocating spectrum resources, which can avoid co-channel interference between APs and enhance network reliability (reduce co-channel interference and time delay), thereby providing service quality guarantee for large-bandwidth low-time-delay application bearers.

In a first aspect, an embodiment of the present application provides a method for allocating spectrum resources, where the method includes: the method comprises the steps that terminal equipment determines a first coverage area of each first AP according to physical parameters of each first AP in M first Access Points (APs), determines a second coverage area of a second AP according to physical parameters of the second AP, determines a first AP corresponding to a first coverage area which is overlapped with the second coverage area in the M first coverage areas of the M first APs as an overlapped AP so as to obtain at least one overlapped AP, and finally determines a frequency band allocated to the second AP from available first frequency bands of the second AP according to a frequency band used by each overlapped AP in the at least one overlapped AP. Wherein, M may be a natural number, the second AP may be any AP without a frequency band allocated, and the frequency band allocated to the second AP is not overlapped with the frequency band used by each overlapping AP. According to the embodiment of the application, when the coverage area of the second AP is overlapped with the coverage area of the overlapped AP, the frequency band which is not overlapped with the frequency band used by each overlapped AP is distributed to the second AP, so that the co-channel interference between the APs can be avoided, the network reliability is enhanced (the co-channel interference and the time delay are reduced), and the service quality guarantee is provided for the large-bandwidth low-time-delay application bearing. Optionally, when M is 0, the terminal device may directly select a frequency band from the first frequency bands available to the second AP and allocate the frequency band to the second AP for use.

With reference to the first aspect, in a possible implementation manner, if the second coverage area of the second AP is not overlapped with the first coverage areas of the first APs, which indicates that the second AP does not interfere with the first APs, the terminal device may directly select a frequency band from the first frequency bands available to the second AP and allocate the frequency band to the second AP for use.

With reference to the first aspect, in one possible implementation, the method further includes: before determining, according to the frequency band used by each overlapping AP in the at least one overlapping AP, the frequency band allocated to the second AP from the first frequency band available to the second AP, the terminal device may determine a second frequency band to which the spectrum resource is to be allocated and a third frequency band in the second frequency band, where the third frequency band may be the frequency band used by the first device. The terminal device may determine the third coverage area of the first device according to the physical parameter of the first device, and may detect whether there is an overlap between the second coverage area of the second AP and the third coverage area of the first device. If the second coverage area and the third coverage area overlap, which indicates that the second AP may generate interference to the first device, the terminal device may determine the first frequency band available to the second AP as a frequency band that does not overlap with the third frequency band in the second frequency band. If the second coverage area and the third coverage area do not overlap, which indicates that the second AP does not generate interference to the first device, the terminal device may determine that the first frequency band available to the second AP is the second frequency band. The second frequency band may be a controllable frequency band of the terminal device or a preset frequency band. The operating mode of the first device may be a first operating mode, and the operating mode of the second AP may be a second operating mode. When the second coverage area of the second AP overlaps with the third coverage area of the first device, the portion of the second frequency band that does not overlap with the third frequency band is used as the available frequency band of the second AP, so that interference of the second AP to the first device can be avoided, and normal communication of the first device is ensured. When the second coverage area of the second AP is not overlapped with the third coverage area of the first device, the second frequency band is directly used as the frequency band available to the second AP, so that the utilization rate of the spectrum resource can be improved without generating interference.

With reference to the first aspect, in a possible implementation manner, when determining, according to a frequency band used by each overlapping AP in the at least one overlapping AP, a frequency band allocated to the second AP from the first frequency band available to the second AP, the terminal device may determine, from the first frequency band available to the second AP, a fourth frequency band that does not overlap with the frequency band used by each overlapping AP in the at least one overlapping AP, and then determine, from the fourth frequency band, a frequency band and allocate the frequency band to the second AP. According to the embodiment of the application, one frequency band is selected from the fourth frequency bands which are not overlapped with the frequency bands used by the overlapped APs in the first frequency band and is distributed to the second AP for use, and co-channel interference between the second AP and the overlapped APs is avoided.

With reference to the first aspect, in one possible implementation, a terminal device may receive a frequency allocation request, which may include a first channel bandwidth. When the terminal device determines a frequency band from the fourth frequency band and allocates the frequency band to the second AP for use, it may determine a frequency band from the fourth frequency band according to the first channel bandwidth and allocate the frequency band to the second AP for use, where a difference between a maximum frequency and a minimum frequency in the frequency band allocated to the second AP is less than or equal to the first channel bandwidth. The first channel bandwidth may be determined by the second AP according to its own traffic demand (or traffic demand). Optionally, the frequency allocation request may further include an AP identifier, and the terminal device may use the AP identified by the AP identifier as the second AP. The terminal device of the embodiment of the application can allocate frequency bands for the APs as required to meet the service requirements of the APs, so that the service quality of the STAs associated with the APs is guaranteed.

With reference to the first aspect, in a possible implementation manner, a difference between a maximum frequency and a minimum frequency in a frequency band used by any one of the M first APs is less than or equal to a second channel bandwidth. When the terminal device determines a frequency band from the fourth frequency band and allocates the frequency band to the second AP for use, it may determine a frequency band from the fourth frequency band according to the second channel bandwidth and allocate the frequency band to the second AP for use, where a difference between a maximum frequency and a minimum frequency in the frequency band allocated to the second AP is less than or equal to the second channel bandwidth. The second channel bandwidth may be a channel bandwidth preset by the terminal device.

With reference to the first aspect, in one possible implementation manner, the physical parameters include an antenna position, an antenna orientation, an antenna transmission power, and an antenna propagation model.

With reference to the first aspect, in one possible implementation, the above M is greater than or equal to 1. The method further comprises the following steps: the terminal device may receive a frequency adjustment request of a third AP, where the frequency adjustment request includes a third channel bandwidth, determine a first AP corresponding to a first coverage area overlapping with a coverage area of the third AP as an area overlapping AP, to obtain at least one area overlapping AP, and adjust a frequency band currently used by the third AP according to a frequency band used by each area overlapping AP in the at least one area overlapping AP and a frequency band available to the third AP. The third AP may be any one of the M first APs, and the third channel bandwidth may be different from a channel bandwidth determined by a frequency band currently used by the third AP. The difference between the maximum frequency and the minimum frequency in the frequency bands used by the third AP after adjustment is less than or equal to the third channel bandwidth, and the frequency bands used by the third AP after adjustment are not overlapped with the frequency bands used by the overlapping APs in each area. The third channel bandwidth may be determined by the third AP according to a change in its own traffic demand or traffic demand. The AP of the embodiment of the present application may provide a frequency adjustment request to the terminal device according to its actual situation (such as a service situation, a traffic situation, etc.), and the terminal device may adjust the frequency band currently used by the A P after receiving the frequency adjustment request, so as to adapt to the service change of the AP itself, thereby ensuring the service quality of the AP.

With reference to the first aspect, in a possible implementation manner, before determining the second frequency band to which the spectrum resource is to be allocated and the third frequency band in the second frequency band, the terminal device may receive a registration request of the first device, where the registration request may include physical parameters of the first device, and may store the physical parameters of the first device in the terminal device, so as to determine the second coverage area of the first device according to the physical parameters of the first device.

In a second aspect, an embodiment of the present application provides a spectrum resource allocation apparatus, which includes means and/or modules for performing the spectrum resource allocation method provided in the first aspect and/or any one of the possible implementations of the first aspect, so that beneficial effects (or advantages) of the spectrum resource allocation method provided in the first aspect can also be achieved.

In a third aspect, an embodiment of the present application provides a terminal device, including a processor, a transceiver, and a memory, where the memory is configured to store a computer program, and the computer program includes program instructions, and when the processor executes the program instructions, the method for allocating spectrum resources according to the first aspect is performed.

In a fourth aspect, the present application provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer is caused to execute the spectrum resource allocation method of the first aspect.

In a fifth aspect, an embodiment of the present application provides a chip including a processor. The processor is configured to read and execute a computer program stored in the memory to perform the spectrum resource allocation method in any possible implementation manner of the first aspect. Optionally, the chip further comprises a memory, and the memory is connected with the processor through a circuit or a wire. Further optionally, the chip further comprises a communication interface, and the processor is connected to the communication interface. The communication interface is used for receiving data and/or information needing to be processed, and the processor acquires the data and/or information from the communication interface, processes the data and/or information and outputs a processing result through the communication interface. The communication interface may be an input output interface.

Alternatively, the processor and the memory may be physically separate units, or the memory and the processor may be integrated together.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer program instructions, and when the computer program instructions are run on the computer, the computer is caused to execute the spectrum resource allocation method in the first aspect.

By implementing the embodiment of the application, on one hand, co-channel interference between APs can be avoided, and the network reliability is enhanced (co-channel interference and time delay are reduced); on the other hand, the method can provide service quality guarantee for the application bearer with large bandwidth and low time delay.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application;

fig. 2 is a schematic flowchart of a spectrum resource allocation method according to an embodiment of the present application;

FIG. 3a is a schematic diagram of transmission loss as a function of distance provided by an embodiment of the present application;

FIG. 3b is a schematic diagram of a third coverage area provided by an embodiment of the present application;

FIG. 3c is a schematic diagram of a second coverage area provided by an embodiment of the present application;

fig. 4 is a schematic structural diagram of a spectrum resource allocation apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1, fig. 1 is a schematic diagram of an application scenario provided in the embodiment of the present application. Fig. 1 illustrates an application scenario of the present application by taking 2 APs as an example. Fig. 1 includes AP1 and AP2, with AP1 being associated with STA1, STA2 and STA3, respectively; AP2 is associated with STA4 and STA5, respectively; in other words, STA1, STA2, and STA3 may access the internet through AP1, and STA4 and STA5 may access the internet through AP 2. Each AP corresponds to a coverage area, and STAs associated with the AP must be within the coverage area of the AP to communicate with the AP, and cannot communicate with the AP if the STAs associated with the AP are outside the coverage area of the AP. In fig. 1, coverage areas BSS1 of AP1 and BSS2 of AP2 overlap. If there is an overlap between the frequency bands used by the AP1 and the AP2 (for example, the frequency band used by the AP1 is 6.12GHz-6.14GHz, and the frequency band used by the AP2 is 6.13GHz-6.15GHz, and at this time, the frequency bands used by the AP1 and the AP2 overlap), co-channel interference (or co-channel interference) occurs between the AP1 and the AP 2. Specifically, as shown in fig. 1, STA1 listens to whether the channel is idle before transmitting data, and since STA1 is in the overlapping area (e.g., the diagonal area in fig. 1) between coverage area BSS1 and coverage area BSS2 and the frequency bands used by AP1 and AP2 overlap, STA1 listens to the channels of AP1 and AP2 at the same time. When STA1 first receives the channel busy information returned by AP2, the channel busy information returned by AP2 will trigger STA1 to enter the backoff stage, and at this time, even if STA1 receives the channel idle information returned by AP1, STA1 cannot occupy the channel of AP1 to transmit data before the backoff time of STA1 arrives, that is, STA1 cannot communicate with AP 1. When the back-off time of STA1 arrives, STA1 listens again to whether the channel (two channels: the channel of AP1 and the channel of AP2 are still being listened to) is idle, until STA1 listens to the channel idle information returned by AP1, and STA1 occupies the channel of AP1 to transmit data (i.e., to communicate with AP 1). This aspect will result in STA1 waiting longer to get the opportunity to transmit data, reducing average data throughput of STAs associated with AP1, increasing network latency of STA1, and failing to guarantee quality of service for large bandwidth low latency applications (e.g., 4K video applications, augmented reality, virtual reality applications, etc.) on STA 1. On the other hand, it is assumed that the channel bandwidth of the AP1 is 80MHz and the channel bandwidth of the AP2 is 20 MHz. For STA1, the 80MHz channel provided by AP1 is inefficient because AP2 creates interference with AP1, making STA1 unable to enjoy the advantages of high throughput and small latency offered by the high bandwidth of AP 1.

Aiming at the application scene, the application provides a spectrum resource allocation method, which can avoid co-channel interference between APs and enhance network reliability (reduce co-channel interference and time delay), thereby providing service quality guarantee for large-bandwidth low-time-delay application bearing.

In some possible embodiments, the AP in the present application may include a wireless router, a base station, and the like; the STA may include a mobile phone, a computer, an IPAD, and other user terminals. The spectrum resource referred to in the present application may refer to a frequency band, and the allocation of the spectrum resource is allocation of the frequency band. For example, if the spectrum resources provided by the present application are two frequency bands of 5.925GHz-6.425GHz and 6.525GHz-6.875GHz, the present application allocates for the two frequency bands of 5.925GHz-6.425GHz and 6.525GHz-6.875 GHz. The spectrum resource allocation method provided by the application can be applied to terminal equipment, and the terminal equipment can be an Automatic Frequency Control (AFC) system or other equipment capable of realizing the spectrum resource allocation method provided by the application. The AFC may include at least two databases (e.g., an existing information database (incumbent data base) and a secondary information database (secondary data base)) and a spectrum access control module. For convenience of description, the spectrum resource allocation method provided by the present application will be described below by taking a terminal device as an example.

Referring to fig. 2, fig. 2 is a schematic flowchart of a spectrum resource allocation method provided in an embodiment of the present application. As shown in fig. 2, a method for allocating spectrum resources according to an embodiment of the present application may include:

s201, a second frequency band of the spectrum resource to be allocated and a third frequency band in the second frequency band are determined.

In some possible embodiments, the second frequency band to be allocated with spectrum resources may be a frequency band controllable by the terminal device, such as 5.925GHz-6.425GHz and 6.525GHz-6.875GHz in a 6G frequency band. Two devices with different operating modes may exist in the second frequency band, one of the operating modes may be an authorized operating mode (the authorized operating mode may refer to an operating mode of the authorized device), and the other operating mode may be an unauthorized operating mode (the unauthorized operating mode may refer to an operating mode of the unauthorized device). The authorized device may refer to a device that is granted national use of a specified frequency band; an unlicensed device may refer to a device that is not nationally licensed to use a specified frequency band.

In other possible embodiments, there are two operating modes of the device in the second frequency band, wherein the frequency band used by the device in one operating mode has a higher priority than the frequency band used by the device in the other operating mode.

In some possible embodiments, the second frequency band may include a third frequency band, the third frequency band may be a frequency band used by the first device, and the operating mode of the first device may be the first operating mode, which may be the authorized operating mode, in other words, the first device may be the authorized device, and the third frequency band may be a designated frequency band in the second frequency band. In practical applications, the first device may be a terrestrial fixed base station for implementing fixed geostationary satellite services, or may be a base station for implementing terrestrial fixed point-to-point communication services.

In some possible embodiments, after the user 1 takes the frequency band specified by the country, the user 1 may perform parameter configuration on the first device owned by the user 1, for example, configure the frequency band used by the first device as the specified frequency band, configure the service life of the specified frequency band, and the like. After configuration is completed, the first device may register in the terminal device through the unified authorization system. The terminal device receives the registration information of the first device through the unified authorization system, and may store the registration information of the first device in the terminal device (for example, in an existing information database of the terminal device). The registration information may include physical parameters of the first device and basic information of the first device, and the physical parameters of the first device may include an antenna position, an antenna orientation, an antenna transmission power, an antenna propagation model, and the like of the first device; the basic information of the first device may include an identifier of the first device, a frequency band used by the first device (i.e., a configured licensed frequency band), an operating mode of the first device (i.e., a first operating mode), a lifetime of the frequency band used by the first device, and the like.

In other possible embodiments, there may be a plurality of first devices registered on the terminal device, and there may also be a plurality of third frequency bands in the second frequency band, and only one frequency band (referred to herein as a designated frequency band) can be used by one first device. For convenience of description, the embodiment of the present application will be described by taking a first device as an example. The terminal device may determine a second frequency band of the preset spectrum resource to be allocated, and may obtain a third frequency band used by the first device from an existing information database of the terminal device.

S202, if there is an overlap between a second coverage area of the second AP and a third coverage area of the first device, determining that the first frequency band available to the second AP is a frequency band that does not overlap with the third frequency band in the second frequency band.

S203, if the second coverage area of the second AP is not overlapped with the third coverage area of the first device, determining that the first frequency band available to the second AP is the second frequency band.

In some possible embodiments, all APs in the embodiments of the present application need to register with the terminal device. When each AP registers, the physical parameters (including antenna position, antenna orientation, antenna transmission power, antenna propagation model, etc.) and basic information (including AP identification, etc.) of the AP itself may be sent to the terminal device through a registration request. After receiving the registration request of the AP, the terminal device may store the physical parameters and the basic information of the AP, which are carried in the registration request, in the terminal device (for example, in a secondary information database of the terminal device). The terminal device may select one AP from the registered APs without frequency bands as the second AP, extract the physical parameters of the second AP from the terminal device (such as the secondary information database), and determine the coverage area of the second AP according to the physical parameters of the second AP. The terminal device may extract the physical parameters of the first device from the terminal device (e.g., an existing information database), and determine the coverage area of the first device according to the physical parameters of the first device. For convenience of description, in the embodiments of the present application, a coverage area of the second AP may be regarded as the second coverage area, and a coverage area of the first device may be regarded as the third coverage area. The terminal device may detect whether there is overlap of the second coverage area with the third coverage area. If the second coverage area and the third coverage area overlap, which indicates that the second AP may generate interference to the first device, the terminal device may determine, as the first frequency band available to the second AP, a frequency band of the second frequency band that does not overlap with the third frequency band. Because the frequency band used by the first device is the third frequency band, and the part of the second frequency band which is not overlapped with the third frequency band is used as the available frequency band of the second AP, the interference of the second AP to the first device can be avoided, and the normal communication of the first device is ensured. If the second coverage area and the third coverage area do not overlap, which indicates that the second AP does not generate interference to the first device, the terminal device may determine the second frequency band as the first frequency band available to the second AP. Because the coverage areas are not overlapped and the problem of co-channel interference cannot occur, the second frequency band is directly used as the frequency band available for the second AP, and at the moment, the frequency band used by the first device can also be used by the second AP, namely, frequency multiplexing (or channel multiplexing), so that the utilization rate of frequency spectrum resources can be improved under the condition of no interference. The coverage area overlapping in the embodiment of the present application may include both partial overlapping and complete overlapping of coverage areas. The operating mode of the second AP may be a second operating mode, and the second operating mode may be the unauthorized mode. In this embodiment of the present application, the operating modes of all APs registered on the terminal device may be the second operating mode.

In other possible embodiments, the AP registered in the terminal device and not allocated with the frequency band may send a frequency allocation request to the terminal device. After receiving the frequency allocation request, the terminal device may obtain an AP identifier included in the frequency allocation request, and may determine the AP identified by the AP identifier as the second AP. In other words, the second AP may be the AP that sent the frequency allocation request. Optionally, the frequency allocation request may be encapsulated into a request message, and the request message may further include information such as a hardware address (MAC address), a geographic location, and/or a channel bandwidth of the AP, in addition to the AP identifier.

In some possible embodiments, when determining the coverage area of the first device according to the physical parameters of the first device and/or determining the coverage area of the second AP according to the physical parameters of the second AP, the terminal device may first calculate the transmission loss (also referred to as path loss or transmission path loss) of the first device and/or the second AP by using a calculation method based on deterministic analysis, such as a Cost-Hata propagation model, an Okumura-Hata propagation model, or the like, based on an empirical or ray tracing model. The terminal device may further calculate a maximum communication distance of the first device according to a maximum loss available for normal communication with the first device and a transmission loss of the first device, and predict a coverage area of the first device according to the maximum communication distance of the first device. Similarly, the terminal device may calculate the maximum communication distance of the second AP according to the maximum loss available for normal communication with the second AP and the transmission loss of the second AP, and then predict the coverage area of the second AP according to the maximum communication distance of the second AP. The Cost-Hata propagation model and the Okumura-Hata propagation model are used for calculating electromagnetic intensity attenuation (namely loss) by researching a large amount of test data to obtain statistical characteristics of radio wave propagation; the ray tracing model is a model that theoretically analyzes the propagation characteristics of radio waves to obtain the propagation characteristics of the radio waves, and calculates the attenuation (or loss) of electromagnetic intensity by combining the direction of an antenna generating the radio waves, a directional pattern, and the antenna transmission power.

As shown in fig. 3a, fig. 3a is a schematic diagram of transmission loss varying with distance according to an embodiment of the present application. Assuming that the first device is a base station for terrestrial fixed point-to-point communication traffic, the horizontal axis in fig. 3a may represent the horizontal distance d (unit: km) between the first device and the receiving station, and the vertical axis may represent the transmission loss L (unit: dB). Or the horizontal axis of fig. 3a may represent the horizontal distance d (unit: km) between the first AP and the STA and the vertical axis may be the transmission loss L (unit: dB). Fig. 3a shows transmission losses in 3 different terrains, urban, suburban and rural, at carrier frequencies of 700MHz and 900MHz, respectively. Assuming that the maximum loss available for normal communication of the first device is 140dB, and the terrain where the first device is located is urban terrain, the horizontal distance d corresponding to the maximum loss of 140dB under the urban terrain is 2km (kilometers), that is, the maximum communication distance of the first device is 2 km. As shown in fig. 3b, fig. 3b is a schematic diagram of a third coverage area provided in the embodiment of the present application. As shown in fig. 3b, the antenna of the first device is oriented at 30 degrees, assuming that the antenna of the first device is a 60 degree sector antenna. The terminal device may take the area within 2km of the horizontal distance from the first device as the coverage area of the first device (i.e. the third coverage area, the hatched area in fig. 3 b). Similarly, assuming that the maximum loss available for normal communication of the second AP is 130dB, and the terrain where the second AP is located is also an urban terrain, the horizontal distance d corresponding to the maximum loss 130dB under the urban terrain is 1km (kilometer), that is, the maximum communication distance of the second AP is 1 km. As shown in fig. 3c, fig. 3c is a schematic diagram of a second coverage area provided in the embodiment of the present application. As shown in fig. 3c, assume that the antenna of the second AP is an omni-directional antenna. The terminal device may regard an area within 1km of the horizontal distance from the second AP as a coverage area of the second AP (i.e., a second coverage area).

S204, determining a first coverage area of each first AP according to the physical parameters of each first AP in the M first APs.

In some possible embodiments, all APs in the embodiments of the present application need to register with the terminal device. The first AP may be an AP registered in the terminal device and allocated with a frequency band. Since each AP is registered with the terminal device, the terminal device stores the physical parameters of each AP in the terminal device (for example, in a secondary information database of the terminal device). Therefore, the terminal device may extract the physical parameters of each first AP of the M first APs from the terminal device (or the secondary information database), and then may determine the coverage area of each first AP according to the physical parameters of each first AP to obtain the M coverage areas. For convenience of description, in the embodiments of the present application, the coverage area of the first AP is taken as the first coverage area, and then the terminal device determines M first coverage areas. The physical parameters of the first AP may include an antenna position, an antenna orientation, an antenna transmission power, an antenna propagation model, and the like of the first AP. Wherein M may be a natural number. The operating mode of each of the M first APs may be a second operating mode, and the second operating mode may be the unauthorized mode. Optionally, when M is 0, it indicates that there is no AP in the terminal device with an allocated frequency band, and the terminal device may directly select a frequency band from the determined first frequency band available to the second AP to allocate to the second AP for use. When M is a natural number greater than 0, it indicates that there is an AP of the allocated frequency band in the terminal device, and the terminal device may execute step S205.

In some possible embodiments, when determining the coverage area of each first AP according to the physical parameters of each first AP, the terminal device may first calculate the transmission loss (also referred to as path loss or transmission path loss) of each first AP by using a calculation method based on deterministic analysis, such as a Cost-Hata propagation model, an Okumura-Hata propagation model, or the like, based on an empirical or ray tracing model. The terminal device may further calculate the maximum communication distance of each first AP according to the maximum loss available for normal communication with each first AP and the transmission loss of each first AP, and predict the coverage area of each first AP according to the maximum communication distance of each first AP, so as to obtain M coverage areas (i.e., M first coverage areas) corresponding to the M first APs.

In some possible embodiments, steps S201 to S203 in the embodiment of the present application may be performed before step S204, steps S201 to S203 may also be performed after step S204, steps S201 to S203 may also be performed simultaneously with step S204, and the embodiment of the present application does not limit the order of performing steps S201 to S203 and step S204.

S205, determine a first AP corresponding to a first coverage area overlapping with a second coverage area of a second AP as an overlapping AP, so as to obtain at least one overlapping AP.

In some possible embodiments, the second AP may be any AP that is registered to the terminal device and is not allocated with a frequency band, or the second AP may identify an AP identified by an AP identifier carried in a frequency allocation request received by the terminal device. The terminal device may obtain the obtained second coverage area of the second AP, and may detect whether there is an overlap between the second coverage area and each of the determined first coverage areas. If the second coverage area overlaps with a certain first coverage area, it indicates that the second AP may generate interference to the first AP corresponding to the certain first coverage area; if the second coverage area does not overlap with a certain first coverage area, it indicates that the second AP will not generate interference to the first AP corresponding to the certain first coverage area. If there is a first coverage area overlapping with the second coverage area in the determined M first coverage areas, the terminal device may determine, as an overlapping AP, a first AP corresponding to the first coverage area overlapping with the second coverage area in the determined M first coverage areas, so as to obtain at least one overlapping AP. The second AP may interfere with the overlapping AP due to the overlap of the first coverage area and the second coverage area of the overlapping AP.

In other possible embodiments, when the terminal device detects that there is no first coverage area overlapping with the second coverage area in the determined M first coverage areas, the terminal device may directly select a frequency band from the first frequency bands available to the second AP determined in step S203 or step S203 to allocate to the second AP for use. Optionally, after allocating a frequency band in the first frequency band available to the second AP for use by the second AP, the terminal device may further store the frequency band allocated for use by the second AP in the terminal device (for example, in a secondary information database of the terminal device), so as to facilitate management of the spectrum resource.

For example, assume that M is 5, and 5 first coverage areas are: a first coverage area a, a first coverage area b, a first coverage area c, a first coverage area d, and a first coverage area e. The terminal device may detect whether there is an overlap between the first coverage area a and the second coverage area, whether there is an overlap between the first coverage area b and the second coverage area, whether there is an overlap between the first coverage area c and the second coverage area, whether there is an overlap between the first coverage area d and the second coverage area, and whether there is an overlap between the first coverage area e and the second coverage area, respectively. Assuming that only the first coverage area a and the first coverage area c overlap with the second coverage area in the 5 first coverage areas, when detecting that the first coverage area a overlaps with the second coverage area, the terminal device takes the first AP corresponding to the first coverage area a as an overlapping AP; when the first coverage area c is detected to be overlapped with the second coverage area, the first AP corresponding to the first coverage area c is taken as another overlapped AP.

S206, according to the frequency band used by each overlapping AP in at least one overlapping AP, determining the frequency band allocated to the second AP from the first frequency band available to the second AP.

In some possible embodiments, the terminal device obtains a frequency band used by each overlapping AP in the determined at least one overlapping AP, and may determine, according to the frequency band used by each overlapping AP, a frequency band that does not overlap with the frequency band used by each overlapping AP from the determined first frequency band available to the second AP, and allocate the frequency band to the second AP. Specifically, the terminal device may determine, from the first frequency band available to the second AP, a fourth frequency band that is not overlapped with the frequency band used by each overlapping AP in the at least one overlapping AP. For example, the terminal device may calculate an intersection of the first frequency band and the frequency band used by each overlapping AP, and then may subtract the intersection of the first frequency band and the frequency band used by each overlapping AP from the first frequency band to obtain a fourth frequency band. And the terminal equipment selects a frequency band from the fourth frequency band and allocates the frequency band to the second AP for use. Because the first coverage area of the overlapping AP overlaps with the second coverage area of the second AP, the second AP may interfere with the overlapping AP, so that in the embodiment of the present application, by allocating a frequency band, which is not overlapped with each overlapping AP, in the first frequency band available to the second AP for use, the co-channel interference between the second AP and each overlapping AP may be avoided, thereby enhancing the network reliability (reducing the time delay). The difference between the maximum frequency and the minimum frequency (i.e., the channel bandwidth) in the frequency band allocated to the second AP may be a preset value, a value generated according to a preset channel bandwidth generation policy, or a value specified by the second AP. The non-overlapping of the frequency bands in the embodiment of the present application may mean that an intersection of the two frequency bands is empty.

In some possible embodiments, the terminal device may extract the first channel bandwidth included in the received frequency allocation request. When the terminal device selects a frequency band from the fourth frequency band and allocates the frequency band to the second AP for use, it may detect whether a difference between a maximum frequency and a minimum frequency of one frequency band in the fourth frequency band is greater than or equal to the first channel bandwidth. If there is a frequency band in the fourth frequency band whose difference between the maximum frequency and the minimum frequency is greater than or equal to the first channel bandwidth, the terminal device may select a frequency band from the fourth frequency band whose difference between the maximum frequency and the minimum frequency is equal to the first channel bandwidth, and allocate the frequency band to the second AP for use. If the difference between the maximum frequency and the minimum frequency of a frequency band not existing in the fourth frequency band is greater than or equal to the first channel bandwidth, the terminal device may allocate a frequency band of the fourth frequency band having the largest difference between the maximum frequency and the minimum frequency (smaller than the first channel bandwidth) to the second AP for use. The first channel bandwidth may be determined by the second AP according to a service requirement (or traffic requirement) of the second AP.

For example, assuming that the at least one overlapping AP includes overlapping AP1 and overlapping AP2, the first frequency band available to the second AP is 6.2GHz-6.425 GHz. Assume that the frequency band used by the overlapping AP1 is 6.18GHz-6.23GHz and the frequency band used by the overlapping AP2 is 6.24GHz-6.34 GHz. The terminal device can calculate the intersection 6.2GHz-6.23GHz of the first frequency band 6.2GHz-6.425GHz and the frequency band 6.18GHz-6.23GHz used by the overlapped AP 1; the terminal device may calculate the intersection 6.24GHz-6.34GHz of the first frequency band 6.2GHz-6.425GHz and the frequency band 6.24GHz-6.34GHz used by the overlapping AP 2. And the terminal equipment subtracts the intersection 6.2GHz-6.23GHz and the intersection 6.24GHz-6.34GHz from the first frequency band 6.2GHz-6.425GHz to obtain the fourth frequency bands of 6.23GHz-6.24GHz and 6.34GHz-6.425 GHz. Assume that the first channel bandwidth is 100 MHz. The terminal equipment detects whether the difference between the maximum frequency and the minimum frequency of one frequency band in the fourth frequency bands (6.23GHz-6.24GHz and 6.34GHz-6.425GHz) is larger than or equal to the first channel bandwidth 100 MHz. The difference between the maximum frequency 6.24GHz and the minimum frequency 6.23GHz in the 6.23GHz-6.24GHz of the fourth frequency band is 10MHz and is smaller than the first channel bandwidth 100 MHz; the difference between the maximum frequency 6.34GHz and the minimum frequency 6.425GHz in the 6.34GHz-6.425GHz of the fourth frequency band is 85MHz and is also smaller than the first channel bandwidth 100 MHz. At this time, if the difference between the maximum frequency and the minimum frequency of one frequency band in the fourth frequency band is not greater than or equal to the first channel bandwidth, the terminal device allocates the frequency band with the maximum difference between the maximum frequency and the minimum frequency (85MHz) in the fourth frequency band to the second AP for use, that is, 6.34GHz-6.425GHz is allocated to the second AP for use. As another example, assume that the first channel bandwidth is 50 MHz. The difference between the maximum frequency 6.24GHz and the minimum frequency 6.23GHz in the 6.23GHz-6.24GHz of the fourth frequency band is 10MHz and is less than the first channel bandwidth 50 MHz; the difference between the maximum frequency 6.34GHz and the minimum frequency 6.425GHz in the 6.34GHz-6.425GHz of the fourth frequency band is 85MHz and is larger than the first channel bandwidth 50 MHz. At this time, if the difference between the maximum frequency and the minimum frequency of one frequency band in the fourth frequency band is greater than or equal to the first channel bandwidth, the terminal device selects a frequency band, the difference between the maximum frequency and the minimum frequency of which is equal to 50MHz of the first channel bandwidth, from the fourth frequency band to allocate to the second AP for use, for example, 6.35GHz-6.4GHz is selected to allocate to the second AP for use; or 6.375GHz-6.425GHz is selected for use by a second AP, and so on.

Optionally, the frequency allocation request may further include a spectrum lease time. And after the terminal device selects one frequency band from the fourth frequency band and allocates the frequency band to the second AP for use, calculating the spectrum failure time of the second AP according to the time for the second AP to start using the frequency band allocated by the terminal device and the spectrum lease time. After the spectrum expiration time arrives, the terminal device may recycle the frequency band allocated to the second AP, that is, after the spectrum expiration time arrives, the terminal device may allocate the frequency band previously allocated to the second AP to other APs for use, and the second AP cannot continue to use the frequency band. For example, if the spectrum lease time is 3 years, and the time when the second AP starts to use the frequency band allocated to the terminal device is 6 months and 10 days in 2019, the spectrum expiration time of the second AP is 6 months and 10 days in 2022. Assuming that the frequency band allocated by the terminal device to the second AP is 5.925GHz-5.975GHz, from 10/6/2022, the terminal device may recover the frequency band from 5.925GHz-5.975GHz, that is, the second AP cannot continue to use the frequency band from 5.925GHz-5.975GHz, and the terminal device may allocate the frequency band from 5.925GHz-5.975GHz to other APs for use.

In other possible embodiments, the terminal device may pre-store the second channel bandwidth (for example, the second channel bandwidth is 20 MHz). The difference between the maximum frequency and the minimum frequency in the frequency band used by any one of the M first APs is less than or equal to the second channel bandwidth. When the terminal device selects a frequency band from the fourth frequency band and allocates the frequency band to the second AP for use, it may detect whether a difference between a maximum frequency and a minimum frequency of one frequency band in the fourth frequency band is greater than or equal to the second channel bandwidth. If there is a frequency band in the fourth frequency band, where the difference between the maximum frequency and the minimum frequency of the frequency band is greater than or equal to the second channel bandwidth, the terminal device may select a frequency band from the fourth frequency band, where the difference between the maximum frequency and the minimum frequency is equal to the second channel bandwidth, and allocate the frequency band to the second AP for use. If the difference between the maximum frequency and the minimum frequency of a frequency band not existing in the fourth frequency band is greater than or equal to the second channel bandwidth, the terminal device may allocate a frequency band of the fourth frequency band having the largest difference between the maximum frequency and the minimum frequency (smaller than the second channel bandwidth) to the second AP for use.

In some possible embodiments, after allocating the frequency band used by the second AP to the second AP, the terminal device may store the frequency band allocated to the second AP in the terminal device (for example, in a secondary information database of the terminal device) together with physical parameters (including antenna position, antenna orientation, antenna transmission power, antenna propagation model, and the like) and basic information (including AP identification, and the like) of the second AP, so as to facilitate management of subsequent spectrum resources. In other words, the terminal device (or the secondary information database) stores the frequency band used by the second AP, the physical parameters of the second AP, and the basic information of the second AP. Optionally, after the terminal device stores the frequency band allocated to the second AP for use, the second AP changes from an AP to which a frequency band is not allocated to an AP to which a frequency band is allocated, and when the terminal device registers the next AP to which a frequency band is not allocated to the terminal device, the M first APs change into M +1 first APs.

In some possible embodiments, after allocating the frequency band used by the second AP to the second AP, if it is detected that the second AP occupies a frequency band with a large bandwidth (for example, 100MHz) for a long time and the traffic on the second AP does not satisfy the condition of using a large bandwidth spectrum (for example, the traffic on the second AP is much less than the traffic that can be provided by 100MHz), the terminal device may adjust the size of the frequency band currently used by the second AP (for example, reduce the size of the frequency band currently used by the second AP).

As an alternative embodiment, the method may further include:

s207, a frequency adjustment request of the third AP is received.

In some possible embodiments, any one of the M first APs may send a frequency adjustment request to the terminal device. For convenience of description, in the embodiments of the present application, a first AP that sends a frequency adjustment request to a terminal device among M first APs is taken as a third AP. The terminal device may receive a frequency adjustment request sent by the third AP, where the frequency adjustment request may include the third channel bandwidth. The third channel bandwidth may be determined by the third AP according to a change of a service requirement (or traffic requirement) of the third AP. The third channel bandwidth is different from a difference between a maximum frequency and a minimum frequency (i.e., a channel bandwidth) in a frequency band currently used by the third AP. The AP of the embodiment of the present application may provide a frequency adjustment request to the terminal device according to its actual conditions (such as a service condition, a traffic condition, and the like) to adapt to the service change of the AP itself, thereby ensuring the service quality of the AP. Optionally, the frequency adjustment request may be encapsulated into a request message and sent to the terminal device. Wherein M may be a natural number, and M may be greater than or equal to 1.

S208, determining a first AP corresponding to a first coverage area overlapping with a coverage area of a third AP as an area overlapping AP, so as to obtain at least one area overlapping AP.

In some possible embodiments, after receiving the frequency adjustment request of the third AP, the terminal device may reallocate the frequency band used by the third AP for the third AP. Specifically, since the third AP is any one of the M first APs, the first coverage area of each of the M first APs is determined in the step S204. The terminal device may acquire the coverage area of the third AP and the M-1 first coverage areas of the M-1 first APs, and may detect whether there is an overlap between the coverage area of the third AP and each of the M-1 first coverage areas. If there is a first coverage area overlapping with the coverage area of the third AP in the M-1 first coverage areas, the terminal device may determine, as an area overlapping AP, a first AP corresponding to the first coverage area overlapping with the coverage area of the third AP in the M-1 first coverage areas, to obtain at least one area overlapping AP.

In other possible embodiments, when the terminal device detects that there is no first coverage area overlapping with the coverage area of the third AP in the M-1 first coverage areas, the terminal device may acquire a frequency band available to the third AP, and may directly select, from the frequency bands available to the third AP, a frequency band whose difference between the maximum frequency and the minimum frequency is smaller than or equal to the third channel bandwidth, to be allocated to the third AP for use.

S209, adjusting a frequency band currently used by the third AP according to a frequency band used by each of the at least one area overlapping AP and a frequency band available to the third AP.

In some possible embodiments, the terminal device may obtain a frequency band available to the third AP and a frequency band used by each of the at least one area overlapping AP, and may adjust a frequency band currently used by the third AP according to the frequency band used by each area overlapping AP and the frequency band available to the third AP. Specifically, the terminal device may determine, from the frequency bands available to the third AP, a fifth frequency band that is not overlapped with the frequency bands used by the overlapping APs in each area. The terminal device may further select a frequency band from the fifth frequency band, where a difference between the maximum frequency and the minimum frequency is smaller than or equal to the third channel bandwidth, and allocate the frequency band to the third AP for use. And the frequency band used by the adjusted third AP is not overlapped with the frequency band used by the overlapped APs in each area.

In some possible embodiments, the frequency adjustment request may further include a new spectrum lease time. And after the terminal equipment adjusts the frequency band currently used by the third AP, calculating the new frequency spectrum failure time of the third AP according to the time when the third AP starts to use the adjusted frequency band and the new frequency spectrum lease time. After the new spectrum expiration time is reached, the terminal device may expire (or disable) the frequency band used by the third AP after adjustment.

In some possible embodiments, after adjusting the frequency band currently used by the third AP, the terminal device may store the frequency band used by the third AP after adjustment in the terminal device.

In this embodiment of the present application, the terminal device first determines the first frequency band available to the second AP, under the condition that it is ensured that the frequency band used by the first device is not interfered. And determining an overlapping AP with the coverage area overlapped with that of the second AP from the M first APs. And finally, determining a frequency band which is not overlapped with the frequency band used by each overlapped AP from the frequency bands available for the second AP, and allocating the frequency band to be used by the second AP. When the coverage areas of the APs are overlapped, the APs with the overlapped coverage areas are allocated completely non-overlapping frequency bands, so that co-channel interference between the APs can be avoided, network reliability is enhanced (co-channel interference and time delay are reduced), and service quality guarantee is provided for large-bandwidth low-time-delay application bearer.

The foregoing describes in detail a spectrum resource allocation method according to an embodiment of the present application, and in order to better implement the foregoing scheme according to the embodiment of the present application, the embodiment of the present application further provides a corresponding apparatus and device.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a spectrum resource allocation apparatus according to an embodiment of the present application. As shown in fig. 4, the spectrum resource allocation apparatus 100 includes:

a first determining module 10, configured to determine, according to a physical parameter of each first AP in the M first access points AP, a first coverage area of each first AP;

a second determining module 20, configured to determine, as an overlapping AP, a first AP corresponding to a first coverage area that is determined by the first determining module 10 and overlaps with a second coverage area of a second AP, so as to obtain at least one overlapping AP;

an allocating module 30, configured to determine, according to the frequency band used by each overlapping AP in the at least one overlapping AP determined by the second determining module 20, a frequency band allocated to the second AP from the first frequency band available to the second AP, where M is a natural number, and the frequency band allocated to the second AP is not overlapped with the frequency band used by each overlapping AP.

In some possible embodiments, the spectrum resource allocation apparatus 100 further includes a third determination module 40 and a fourth determination module 50. The third determining module 40 is configured to determine a second frequency band of the spectrum resource to be allocated and a third frequency band in the second frequency band, where the third frequency band is a frequency band used by the first device, and the working mode of the first device is the first working mode. The fourth determining module 50 is configured to determine, when the second coverage area of the second AP overlaps with the third coverage area of the first device, that the first frequency band available to the second AP is a frequency band that does not overlap with the third frequency band in the second frequency band determined by the third determining module 40. The fourth determining module 50 is further configured to determine, when the second coverage area of the second AP is not overlapped with the third coverage area of the first device, that the first frequency band available to the second AP is the second frequency band determined by the third determining module 40, where the operating mode of the second AP is the second operating mode.

In some possible embodiments, the allocating module 30 includes a determining unit 301 and an allocating unit 302. The determining unit 301 is configured to determine, from the first frequency band available to the second AP, a fourth frequency band that does not overlap with the frequency band used by each overlapping AP in the at least one overlapping AP; the allocating unit 302 is configured to determine a frequency band from the fourth frequency bands determined by the determining unit 301 and allocate the frequency band to the second AP.

In some possible embodiments, the spectrum resource allocation apparatus 100 further includes a first receiving module 60. The first receiving module 60 is configured to receive a frequency allocation request, where the frequency allocation request includes a first channel bandwidth. The allocating unit 302 is specifically configured to: a frequency band is determined from the fourth frequency bands determined by the determining unit 301 according to the first channel bandwidth received by the first receiving module 60, and is allocated to the second AP for use, and a difference between a maximum frequency and a minimum frequency in the frequency bands allocated to the second AP is smaller than or equal to the first channel bandwidth.

In some possible embodiments, a difference between a maximum frequency and a minimum frequency in a frequency band used by any one of the M first APs is less than or equal to the second channel bandwidth. The allocating unit 302 is further specifically configured to: a frequency band is determined from the fourth frequency bands determined by the determining unit 301 according to the second channel bandwidth and allocated to the second AP for use, and a difference between a maximum frequency and a minimum frequency in the frequency bands allocated to the second AP is smaller than or equal to the second channel bandwidth.

In some possible embodiments, the physical parameters include antenna position, antenna orientation, antenna transmit power, and antenna propagation model.

In some possible embodiments, M is greater than or equal to 1. The spectrum resource allocation apparatus 100 further includes a second receiving module 70 and an adjusting module 80. The second receiving module 70 is configured to receive a frequency adjustment request of a third AP, where the third AP is any one of the M first APs, the frequency adjustment request includes a third channel bandwidth, and the third channel bandwidth is different from a channel bandwidth determined by a frequency band currently used by the third AP. The second determining module 20 is further configured to determine, as an area overlapping AP, a first AP corresponding to a first coverage area overlapping with the coverage area of the third AP, so as to obtain at least one area overlapping AP. The adjusting module 80 is configured to adjust a frequency band currently used by the third AP according to the frequency band used by each of the at least one area overlapping AP determined by the second determining module 20 and the frequency band available to the third AP, where a difference between a maximum frequency and a minimum frequency in the frequency band used by the third AP after adjustment is smaller than or equal to the third channel bandwidth, and the frequency band used by the third AP after adjustment is not overlapped with the frequency band used by each of the area overlapping APs.

The first determining module 10, the second determining module 20, the allocating module 30, the third determining module 40, the fourth determining module 50, and/or the adjusting module 80 may be a single module, such as a processing module. The first receiving module 60 and/or the second receiving module 70 may also be a single module, such as a transceiver module.

In a specific implementation, the implementation of each module may also correspond to the corresponding description of the terminal device in the method embodiment shown in fig. 2, and execute the method and the function executed by the terminal device in the foregoing embodiment.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a terminal device provided in an embodiment of the present application. As shown in fig. 5, the terminal device 1000 according to the embodiment of the present application includes a processor 1001, a memory 1002, a transceiver 1003, and a bus system 1004.

The processor 1001, the memory 1002, and the transceiver 1003 are connected by a bus system 1004.

The memory 1002 is used for storing programs. In particular, the program may include program code including computer operating instructions. The memory 1002 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM). Only one memory is shown in fig. 5, but of course, the memory may be provided in plural numbers as necessary. The memory 1002 may also be a memory in the processor 1001, which is not limited herein.

The memory 1002 stores elements, executable modules, elements, or data structures, or subsets thereof, or expanded sets thereof:

and (3) operating instructions: including various operational instructions for performing various operations.

Operating the system: including various system programs for implementing various basic services and for handling hardware-based tasks.

The processor 1001 controls the operation of the terminal device 1000, and the processor 1001 may be one or more Central Processing Units (CPUs), and in the case that the processor 1001 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

In a specific application, the various components of the terminal device 1000 are coupled together by a bus system 1004, wherein the bus system 1004 may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 1004 in FIG. 5. For ease of illustration, it is only schematically drawn in fig. 5.

Fig. 2 provided in the embodiment of the present application or the method of the terminal device in the embodiment may be applied to the processor 1001, or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having data processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1001. The processor 1001 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application 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 application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1002, and the processor 1001 reads the data in the memory 1002 and executes the method steps of fig. 2 or the terminal device described in the foregoing embodiment in conjunction with the hardware thereof.

An embodiment of the present application also provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer is caused to execute the method steps of the terminal device described in fig. 2.

The embodiment of the application also provides a chip which comprises a processor. The processor is configured to read and execute a computer program stored in the memory to perform the spectrum resource allocation method in any possible implementation manner of fig. 2. Optionally, the chip further comprises a memory, and the memory is connected with the processor through a circuit or a wire. Further optionally, the chip further comprises a communication interface, and the processor is connected to the communication interface. The communication interface is used for receiving data and/or information needing to be processed, and the processor acquires the data and/or information from the communication interface, processes the data and/or information and outputs a processing result through the communication interface. The communication interface may be an input output interface.

One of ordinary skill in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the above method embodiments. And the aforementioned storage medium includes: various media capable of storing program codes, such as ROM or RAM, magnetic or optical disks, etc.

Claims

1. A method for allocating spectrum resources, comprising:

determining a first coverage area of each first Access Point (AP) according to physical parameters of each first AP in M first APs;

determining a first AP corresponding to a first coverage area overlapping with a second coverage area of a second AP as an overlapping AP to obtain at least one overlapping AP;

and determining a frequency band allocated to the second AP from the available first frequency band of the second AP according to the frequency band used by each overlapping AP in the at least one overlapping AP, wherein M is a natural number, and the frequency band allocated to the second AP is not overlapped with the frequency band used by each overlapping AP.

2. The method of claim 1, wherein before determining the frequency band allocated for the second AP from the first frequency band available to the second AP according to the frequency band used by each of the at least one overlapping AP, the method further comprises:

determining a second frequency band of a spectrum resource to be allocated and a third frequency band in the second frequency band, wherein the third frequency band is a frequency band used by first equipment, and the working mode of the first equipment is a first working mode;

if a second coverage area of the second AP overlaps with a third coverage area of the first device, determining that a first frequency band available to the second AP is a frequency band that does not overlap with the third frequency band in the second frequency band;

if the second coverage area of the second AP is not overlapped with the third coverage area of the first device, determining that the first frequency band available to the second AP is the second frequency band, where the operating mode of the second AP is a second operating mode.

3. The method according to claim 1 or 2, wherein the determining, according to the frequency band used by each of the at least one overlapping AP, the frequency band allocated to the second AP from the first frequency band available to the second AP comprises:

determining a fourth frequency band which is not overlapped with the frequency band used by each overlapped AP in the at least one overlapped AP from the first frequency band available to the second AP;

and determining a frequency band from the fourth frequency band and allocating the frequency band to the second AP for use.

4. The method of claim 3, wherein before determining the first coverage area of each of the M first Access Points (APs) according to the physical parameters of the first AP, the method further comprises:

receiving a frequency allocation request, wherein the frequency allocation request comprises a first channel bandwidth;

the determining a frequency band from the fourth frequency band and allocating the frequency band to the second AP, including:

and determining a frequency band from the fourth frequency band according to the first channel bandwidth and allocating the frequency band to the second AP for use, wherein the difference between the maximum frequency and the minimum frequency in the frequency band allocated to the second AP for use is less than or equal to the first channel bandwidth.

5. The method of claim 3, wherein the difference between the maximum frequency and the minimum frequency in the frequency band used by any one of the M first APs is less than or equal to the second channel bandwidth;

and determining a frequency band from the fourth frequency band according to the second channel bandwidth and allocating the frequency band to the second AP for use, wherein the difference between the maximum frequency and the minimum frequency in the frequency band allocated to the second AP for use is less than or equal to the second channel bandwidth.

6. The method according to any of claims 1-5, wherein the physical parameters include antenna position, antenna orientation, antenna transmit power, and antenna propagation model.

7. The method of any one of claims 1-6, wherein M is greater than or equal to 1;

the method further comprises the following steps:

receiving a frequency adjustment request of a third AP, where the third AP is any one of the M first APs, the frequency adjustment request includes a third channel bandwidth, and the third channel bandwidth is different from a channel bandwidth determined by a frequency band currently used by the third AP;

determining a first AP corresponding to a first coverage area overlapping with the coverage area of the third AP as an area overlapping AP to obtain at least one area overlapping AP;

and adjusting the frequency band currently used by the third AP according to the frequency band used by each area overlapping AP in the at least one area overlapping AP and the available frequency band of the third AP, wherein the difference between the maximum frequency and the minimum frequency in the adjusted frequency band used by the third AP is less than or equal to the third channel bandwidth, and the adjusted frequency band used by the third AP is not overlapped with the frequency band used by each area overlapping AP.

8. A spectrum resource allocation apparatus, comprising:

a first determining module, configured to determine, according to a physical parameter of each first AP in the M first access points APs, a first coverage area of each first AP;

a second determining module, configured to determine, as an overlapping AP, a first AP corresponding to a first coverage area that is determined by the first determining module and overlaps with a second coverage area of a second AP, so as to obtain at least one overlapping AP;

and an allocation module, configured to determine, according to the frequency band used by each overlapping AP in the at least one overlapping AP determined by the second determination module, a frequency band allocated to the second AP from the first frequency band available to the second AP, where M is a natural number, and the frequency band allocated to the second AP is not overlapped with the frequency band used by each overlapping AP.

9. The apparatus of claim 8, further comprising:

a third determining module, configured to determine a second frequency band of a spectrum resource to be allocated and a third frequency band in the second frequency band, where the third frequency band is a frequency band used by a first device, and a working mode of the first device is a first working mode;

a fourth determining module, configured to determine, when a second coverage area of the second AP overlaps with a third coverage area of the first device, that the first frequency band available to the second AP is a frequency band that does not overlap with the third frequency band in the second frequency band determined by the third determining module;

the fourth determining module is further configured to determine, when the second coverage area of the second AP is not overlapped with the third coverage area of the first device, that the first frequency band available to the second AP is the second frequency band determined by the third determining module, where the operating mode of the second AP is a second operating mode.

10. The apparatus of claim 8 or 9, wherein the assignment module comprises:

a determining unit, configured to determine, from the first frequency band available to the second AP, a fourth frequency band that does not overlap with a frequency band used by each overlapping AP in the at least one overlapping AP;

and the allocation unit is used for determining a frequency band from the fourth frequency band determined by the determination unit and allocating the frequency band to the second AP for use.

11. The apparatus of claim 10, further comprising:

a first receiving module, configured to receive a frequency allocation request, where the frequency allocation request includes a first channel bandwidth;

the allocation unit is specifically configured to:

and determining a frequency band from the fourth frequency bands determined by the determining unit according to the first channel bandwidth received by the first receiving module, and allocating the frequency band to the second AP for use, wherein a difference between a maximum frequency and a minimum frequency in the frequency bands allocated to the second AP is less than or equal to the first channel bandwidth.

12. The apparatus according to claim 10, wherein the difference between the maximum frequency and the minimum frequency in the frequency band used by any one of the M first APs is less than or equal to the second channel bandwidth;

the allocation unit is further specifically configured to:

and determining a frequency band from the fourth frequency bands determined by the determining unit according to the second channel bandwidth and allocating the frequency band to the second AP for use, wherein a difference between a maximum frequency and a minimum frequency in the frequency bands allocated to the second AP for use is less than or equal to the second channel bandwidth.

13. The apparatus according to any of claims 8-12, wherein the physical parameters comprise antenna position, antenna orientation, antenna transmit power, and antenna propagation model.

14. The apparatus of any one of claims 8-13, wherein M is greater than or equal to 1;

the device further comprises:

a second receiving module, configured to receive a frequency adjustment request of a third AP, where the third AP is any one of the M first APs, the frequency adjustment request includes a third channel bandwidth, and the third channel bandwidth is different from a channel bandwidth determined by a frequency band currently used by the third AP;

the second determining module is further configured to determine, as an area overlapping AP, a first AP corresponding to a first coverage area overlapping with the coverage area of the third AP, so as to obtain at least one area overlapping AP;

an adjusting module, configured to adjust a frequency band currently used by the third AP according to the frequency band used by each of the at least one area overlapping AP determined by the second determining module and the frequency band available to the third AP, where a difference between a maximum frequency and a minimum frequency in the frequency band used by the third AP after adjustment is smaller than or equal to the third channel bandwidth, and the frequency band used by the third AP after adjustment is not overlapped with the frequency band used by each of the area overlapping APs.

15. A terminal device comprising a processor, a transceiver and a memory, wherein the memory is configured to store a computer program comprising program instructions that, when executed by the processor, cause the terminal device to perform the method of any one of claims 1-7.

16. A computer-readable storage medium having computer program instructions stored therein, which when run on the computer, cause the computer to perform the method of any one of claims 1-7.