CN112312533A

CN112312533A - Power regulation method, device, access network equipment and storage medium

Info

Publication number: CN112312533A
Application number: CN202011221663.8A
Authority: CN
Inventors: 林敏�; 刘震; 钟梓滢
Original assignee: Comba Telecom Systems China Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-02-02
Anticipated expiration: 2040-11-05
Also published as: CN112312533B

Abstract

The application relates to a power adjustment method, a power adjustment device, access network equipment and a storage medium. The method comprises the following steps: receiving signal information of adjacent cells reported by each remote unit and quality information of User Equipment (UE) associated with each remote unit; determining the coverage type and the interference type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and the quality information of UE (user equipment) associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs; acquiring the movement information of each remote unit; the mobile information is used for representing the switching condition of UE associated with the remote unit when switching the access network equipment; and adjusting the transmitting power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit. The method can improve the overall communication performance of the system.

Description

Power regulation method, device, access network equipment and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a power adjustment method, apparatus, access network device, and storage medium.

Background

Currently, in order to realize indoor network coverage, most indoor distributed base stations are adopted for network coverage. The indoor Distributed base station is composed of an AU (AU), an Access Unit (CP), a central Unit (CP) and a remote Unit (DP), wherein one AU is connected with a plurality of CPs, and the CP can be connected with a plurality of DPs to realize indoor coverage.

An existing indoor distributed base station, which may also be referred to as a micro station, generally sets all DPs to perform downlink communication with fixed transmission power, but because the transmission power of the DPs is lost (for example, path loss) in the downlink communication process, some data sent by the DPs cannot be received by a user, which may cause a problem of coverage holes in the base station. In addition, after the outdoor macro station adopts a large-scale antenna, the outdoor macro station can absorb boundary users covered indoors, the boundary users are far away from the macro station and close to the indoor micro station, so that the transmission power of the indoor boundary users can be increased for communicating with the macro station, and the boundary users can increase the transmission power, so that when the outdoor macro station communicates with the indoor micro station, other users communicating with the indoor micro station can be interfered, and the communication performance of other users can be affected.

However, such current DP power setting may result in reduced communication performance of the system.

Disclosure of Invention

In view of the above, it is necessary to provide a power adjustment method, apparatus, access network device and storage medium capable of improving system communication performance.

A method of power regulation, the method comprising:

receiving signal information of adjacent cells reported by each remote unit and quality information of User Equipment (UE) associated with each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

determining the coverage type and the interference type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and the quality information of UE (user equipment) associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

acquiring the movement information of each remote unit; the mobility information is used for representing the switching condition of UE associated with the remote unit when switching the access network equipment;

and adjusting the transmitting power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit.

In one embodiment, the determining the coverage type and the interference type of each remote unit according to the signal information of the neighboring cell reported by each remote unit and the quality information of the UE associated with the remote unit includes:

determining the coverage type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and a preset signal intensity threshold;

the interference type for each remote unit is determined based on the coverage type for each remote unit and the quality information for the UE associated with the remote unit.

In one embodiment, the determining the coverage type of each remote unit according to the signal information of the neighboring cell reported by each remote unit and a preset signal strength threshold includes:

if the signal strength of the adjacent cell of the remote unit is greater than the signal strength threshold, determining that the remote unit and the access network equipment to which the target cell belongs are overlapped; the target cell is an adjacent cell of which the signal strength is greater than a signal strength threshold in the adjacent cells.

In one embodiment, the determining that the remote unit overlaps with the access network device to which the target cell belongs includes:

determining the type of the access network equipment to which the target cell belongs according to the transmitting power of the access network equipment to which the target cell belongs and a preset transmitting power threshold; the type of the access network equipment comprises a macro station or a micro station;

based on the type of access network device to which the target cell belongs, it is determined that the coverage type of the remote unit overlaps with the access network device to which the target cell belongs.

In one embodiment, the determining the interference type of each remote unit based on the coverage type of each remote unit and the quality information of the UE associated with the remote unit includes:

determining the number of target UEs in the UE associated with the remote unit according to the quality measurement value of the UE associated with any remote unit and a preset quality value threshold; the target UE is the UE with the quality measurement value lower than the quality value threshold;

obtaining a ratio of the number of the target UE to the total number of the UE associated with the remote unit based on the number of the target UE and the total number of the UE associated with the remote unit;

if the ratio is greater than a preset ratio threshold, determining the interference type of the remote unit as interfered.

In one embodiment, the determining that the interference type of the remote unit is interfered includes:

and determining the interference type of the remote unit as the interference of the access network equipment to which the target cell belongs according to the type of the access network equipment to which the target cell belongs.

In one embodiment, the adjusting the transmission power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit, and the movement information of each remote unit includes:

determining a remote unit to be adjusted and an adjustment strategy according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit;

acquiring power adjustment quantity corresponding to the remote unit to be adjusted and original transmitting power of the remote unit to be adjusted;

and adjusting the original transmitting power of the remote unit to be adjusted according to the adjustment strategy and the power adjustment amount corresponding to the remote unit to be adjusted to obtain the target transmitting power corresponding to the remote unit to be adjusted.

In one embodiment, the obtaining the power adjustment amount corresponding to the remote unit to be adjusted includes:

acquiring a preset power adjustment step length, and determining the power adjustment step length as a power adjustment amount;

or, obtaining the maximum difference between the signal strength of the cell where the remote unit to be adjusted is located and the signal strength of the neighboring cell, and determining the maximum difference as the power adjustment amount.

In one embodiment, the method further includes:

and determining the target bandwidth corresponding to the remote unit to be adjusted according to the target transmitting power corresponding to the remote unit to be adjusted, the original transmitting power of the remote unit to be adjusted and the total bandwidth of the system.

In one embodiment, the method further includes:

acquiring non-adjustment remote units from the coverage range of the access network equipment to which the remote units to be adjusted belong, and acquiring the service requirement of each non-adjustment remote unit; the service requirement of the non-adjustment remote unit is the service requirement of UE associated with the non-adjustment remote unit;

and determining the bandwidth and the transmitting power of each non-adjustment remote unit according to the service requirement of each non-adjustment remote unit and the target bandwidth corresponding to the remote unit to be adjusted.

In one embodiment, the determining the bandwidth and the transmit power of each non-adjusted remote unit according to the service requirement of each non-adjusted remote unit and the target bandwidth corresponding to the remote unit to be adjusted includes:

obtaining residual total bandwidth corresponding to all non-adjusted remote units according to the difference value between the total bandwidth of the system and the target bandwidth;

determining the bandwidth of each non-adjusted remote unit according to the remaining total bandwidth and the service requirement of each non-adjusted remote unit;

the transmit power of each non-adjusted remote unit is determined based on the bandwidth and the total system bandwidth of each non-adjusted remote unit and the total system transmit power.

In one embodiment, the determining the bandwidth of each non-regulatory remote unit based on the remaining total bandwidth and the traffic demand of each non-regulatory remote unit comprises:

obtaining total service requirements corresponding to all the non-adjusted remote units according to the service requirements of the non-adjusted remote units;

calculating the ratio of the service requirements of each non-adjusted remote unit to the total service requirements to obtain the ratio of the service requirements corresponding to each non-adjusted remote unit;

and obtaining the bandwidth of each non-adjustment remote unit according to the service demand ratio and the residual total bandwidth corresponding to each non-adjustment remote unit.

estimating the corresponding estimated bandwidth of each non-adjustment remote unit according to the service requirement of each non-adjustment remote unit;

obtaining a total estimated bandwidth according to the estimated bandwidth corresponding to each non-adjusted remote unit;

determining the bandwidth of each non-adjusted remote unit according to the total estimated bandwidth and the remaining total bandwidth.

In one embodiment, the determining the bandwidth of each non-adjusted remote unit according to the total estimated bandwidth and the remaining total bandwidth includes:

if the total estimated bandwidth exceeds the residual total bandwidth, acquiring two non-adjusted remote units with the maximum isolation from each non-adjusted remote unit;

determining an overlapping bandwidth according to the total estimated bandwidth and the non-adjusted total bandwidth;

determining bandwidths of the two non-adjusted remote units based on the overlapping bandwidths and the estimated bandwidths corresponding to the two non-adjusted remote units;

determining the bandwidths of other non-adjusted remote units based on the bandwidths of the residual total bandwidths except the overlapping bandwidth and the estimated bandwidths corresponding to the other non-adjusted remote units; the other non-adjusted remote units are the non-adjusted remote units of each non-adjusted remote unit except for the two non-adjusted remote units.

A power regulation apparatus, the apparatus comprising:

a receiving module, configured to receive signal information of neighboring cells reported by remote units of each remote unit and quality information of user equipment UE associated with each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

a determining module, configured to determine a coverage type and an interference type of each remote unit according to signal information of an adjacent cell reported by each remote unit and quality information of a UE associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

an acquisition module for acquiring the movement information of each remote unit; the mobility information is used for representing the switching condition of UE associated with the remote unit when switching the access network equipment;

and the adjusting module is used for adjusting the transmitting power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit.

An access network device comprising a transceiver, a memory, and a processor, the memory storing a computer program,

the transceiver is used for receiving the signal information of the adjacent cells reported by the remote units of each remote unit and the quality information of the user equipment UE associated with each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

when the processor executes the computer program, the processor is used for determining the coverage type and the interference type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and the quality information of the UE associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

the processor, when executing the computer program, is further configured to obtain movement information of each remote unit; the mobility information is used for representing the switching condition of UE associated with the remote unit when switching the access network equipment;

the processor, when executing the computer program, is further configured to adjust the transmit power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit, and the movement information of each remote unit.

A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:

receiving signal information of adjacent cells reported by remote units of each remote unit and quality information of User Equipment (UE) associated with each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

The power adjustment method, the power adjustment device, the access network equipment and the storage medium can obtain the coverage type and the interference type of each remote unit through the received signal information of the adjacent cell reported by each remote unit and the quality information of the associated UE, and adjust the transmitting power of each remote unit based on the obtained mobile information of each remote unit and the coverage type and the interference type of each remote unit, wherein the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs, and the mobile information is used for representing the switching condition of the UE associated with the remote unit when the access network equipment is switched. In the method, the transmitting power of each remote unit can be dynamically adjusted according to the coverage type, the interference type and the mobile information of each remote unit, instead of the remote unit always transmitting data at fixed transmitting power, so that when coverage holes occur and basic mobility of the UE cannot be guaranteed, the coverage area can be improved by adjusting the transmitting power of the remote units, and the coverage holes can be reduced; meanwhile, in a scene with a macro station and a micro station, the coverage area of the remote unit can be enlarged to absorb more users by adjusting the transmitting power of the interfered remote unit, and the interference of macro station boundary users to micro station users can be reduced; by reducing the coverage hole and reducing the interference, the overall communication performance of the system can be improved.

Drawings

FIG. 1 is a diagram of an exemplary power scaling method;

FIG. 2 is a flow diagram illustrating a power adjustment method according to one embodiment;

FIG. 3 is a flow chart illustrating a power adjustment method according to another embodiment;

FIG. 4 is a flow chart illustrating a power adjustment method according to another embodiment;

FIG. 5 is a flow chart illustrating a power adjustment method according to another embodiment;

FIG. 6 is an exemplary diagram of a power adjustment method in another embodiment;

FIG. 7 is a block diagram of a power adjustment apparatus according to an embodiment;

fig. 8 is an internal structural diagram of an access network device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

At present, most DPs in the existing distributed base station transmit data with fixed power, but because the transmit power of the DP has loss (such as path loss) in the downlink communication process, some data transmitted by the DP cannot be received by the user, so that a coverage hole exists; meanwhile, after the outdoor macro station adopts a large-scale antenna, part of indoor boundary users can be absorbed, and the boundary users are far away from the macro station, so that the transmission power can be increased in the communication process of the outdoor macro station and the macro station, but when the outdoor macro station communicates with the micro station, other indoor users can be interfered, so that the communication performance of other users is influenced, and in short, the communication performance of the system can be reduced due to the power setting of the DP at present. Based on this, the present application provides a power adjustment method, apparatus, access network device, and storage medium, which can solve the above technical problem.

The power adjustment method provided in the embodiment of the present application may be applied to an application environment shown in fig. 1, where a host unit 101 may be referred to as au (access unit) and mainly implements processing of each layer of a protocol stack of a base station and a system management function, an extension unit 102 may be referred to as CP (centralized part) or cu (centralized unit) and mainly implements distribution and aggregation functions of uplink and downlink baseband data and supplies power to a remote end, and a remote unit 103 may be referred to as DP (distributed part) or du (distributed unit) and mainly implements signal amplification and transceiving. One AU may connect to multiple CPs, one CP may connect to multiple DPs, and one DP may cover one or more User equipments UEs 104(User Equipment). Additionally, the user device 104 may be a cell phone, laptop, tablet, desktop, or the like.

In an embodiment, a power adjustment method is provided, and this embodiment relates to a specific process of how to determine a coverage type and an interference type of each DP, and perform power adjustment on each DP in combination with movement information of each DP. Taking the method as an example of being applied to the host unit AU in fig. 1, as shown in fig. 2, the method may include the following steps:

s202, receiving signal information of adjacent cells reported by each remote unit and quality information of User Equipment (UE) associated with each remote unit; wherein the neighboring cell is a cell neighboring the access network device to which the remote unit belongs.

The access network device to which the remote unit DP belongs may be a host unit AU, or a host unit AU + an extension unit CP, where each AU corresponds to one physical cell, different AUs correspond to different physical cells, and here, an adjacent cell also refers to a physical cell; the number of the neighboring cells of each DP may be the same or different, and the neighboring cells of each DP may be the same or different. The number of the UEs associated with each DP may be one or more, the number of the UEs associated with each DP may be the same or different, and meanwhile, the UEs associated with each DP may be the same or different; one UE may be covered by a plurality of DPs.

In addition, the signal information of the neighboring cell may include the signal strength of the access network device to which the neighboring cell belongs, and the transmission power of the access network device to which the neighboring cell belongs; here, the access network device to which the adjacent cell belongs may be a three-level architecture access network device of AU + CP + DP, or may be a cabinet-type integrated access network device; the quality information of the UE may include a quality test value of uplink and downlink communication of the UE, and may include a signal to interference plus noise ratio (signal power/interference power and noise power and value) of the uplink and downlink communication, a satisfaction degree of the uplink and downlink communication (which may be represented by uplink and downlink decoding accuracy, Qos service quality, and the like), and the like.

For example, suppose there are two DPs under AU, which are DP1 and DP2, DP1 has N1 and N2 for neighboring cells, DP2 has N2 for neighboring cells, and DP1 and DP2 report the signal information of neighboring cells periodically, where the reported signal information can be shown in table 1 below:

TABLE 1

Specifically, each DP may listen to the signal information of its neighboring cell and the quality information of its associated UE, and transmit the listened signal information of the neighboring cell and the quality information of the associated UE to the host unit AU through the extension unit CP.

S204, determining the coverage type and the interference type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and the quality information of the UE associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs.

The coverage type of the remote unit DP may be overlapping with the access network device to which the adjacent cell belongs, that is, being covered by the access network device to which the adjacent cell belongs, or not overlapping with the access network device to which the adjacent cell belongs; the interference type of the remote unit DP may be interference by the access network device to which the neighboring cell belongs, or interference by the access network device to which the neighboring cell belongs.

Specifically, the AU may obtain whether each DP overlaps with the access network device to which the respective adjacent cell belongs by analyzing the signal information of the adjacent cell reported by each DP, and obtain what type of access network device the AU overlaps when the DP overlaps with the access network device to which the adjacent cell belongs; the AU may also analyze the quality information of the associated UE reported by each DP to obtain whether each DP is interfered, and may also obtain, in combination with the coverage type of each DP, what type of access network device the DP belongs to when interfered.

S206, acquiring the movement information of each remote unit; the mobility information is used to characterize handover of the UE associated with the remote unit when switching access network equipment.

The switching condition may include whether the switching success rate is lower than a preset switching success rate threshold, whether the switching failure rate is higher than a preset switching failure rate threshold, and the like. The handover success rate refers to the success probability of all DP-associated UEs when the current access network device is handed over to other access network devices, or the success probability of the UEs when the UEs are handed over from other access network devices to the current access network device; the handover failure rate refers to the probability that all the UEs associated with the DP fail when being handed over from the current access network device to another access network device, or the probability that the UE fails when being handed over from another access network device to the current access network device. The switching success rate threshold and the switching failure rate threshold may be determined according to actual situations, for example, the switching success rate threshold may be 90%, the switching failure rate threshold may be 91%, and the like.

Specifically, the mobility information may also be considered as a handover situation of switching the access network device when each UE moves, and each DP may count the handover situation of the UE associated with itself in real time and transmit the handover situation of the UE to the host unit AU through the extension unit CP.

And S208, adjusting the transmitting power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit.

In this step, after obtaining the coverage type and the interference type of each DP, the AU may find out the DP interfered by other access network devices, and adjust the transmission power of the interfered DP according to the movement information of the interfered DP, where the adjustment may be to increase the transmission power to improve coverage and reduce interference, or to reduce the transmission power to reduce interference to other DPs. Of course, when adjusting the transmission power of the interfered DP, the corresponding bandwidth may also be adjusted. For other undisturbed DPs, the transmission power and bandwidth can be selected not to be adjusted, and the original transmission power and bandwidth are kept.

In the power adjustment method, the coverage type and the interference type of each remote unit may be obtained through the received signal information of the adjacent cell and the quality information of the associated UE, which are reported by each remote unit DP, and the transmission power of each remote unit is adjusted based on the obtained mobile information of each remote unit and the coverage type and the interference type of each remote unit, where the coverage type is used to characterize an overlapping condition of the remote unit and the access network device to which the adjacent cell belongs, the interference type is used to characterize an interference condition of the remote unit by the access network device to which the adjacent cell belongs, and the mobile information is used to characterize a switching condition of the UE associated with the remote unit when the access network device is switched. In the method, the transmitting power of each remote unit can be dynamically adjusted according to the coverage type, the interference type and the mobile information of each remote unit, instead of the remote unit always transmitting data at fixed transmitting power, so that when coverage holes occur and basic mobility of the UE cannot be guaranteed, the coverage area can be improved by adjusting the transmitting power of the remote units, and the coverage holes can be reduced; meanwhile, in a scene with a macro station and a micro station, the coverage area of the remote unit can be enlarged to absorb more users by adjusting the transmitting power of the interfered remote unit, and the interference of macro station boundary users to micro station users can be reduced; by reducing the coverage hole and reducing the interference, the overall communication performance of the system can be improved.

In another embodiment, another power adjustment method is provided, and this embodiment relates to a specific process of how to determine the coverage type and the interference type of each DP according to the signal information of the neighboring cell and the quality information of the associated UE reported by each DP. On the basis of the above embodiment, as shown in fig. 3, the above S204 may include the following steps:

s302, according to the signal information of the adjacent cell reported by each remote unit and the preset signal intensity threshold, determining the coverage type of each remote unit.

In this step, the signal information of the neighboring cell includes a signal strength of an access network device to which the neighboring cell belongs, where the signal strength may include a reference signal strength of the access network device, a broadcast signal strength of the access network device, and the like; the predetermined signal strength threshold may be determined by practical conditions, and may be, for example, -120dBm, -115dBm, etc.

Optionally, when determining the coverage type of the DP, the following step a1 may be adopted to perform the determination:

a1, if the signal strength of the adjacent cell of the remote unit is greater than the signal strength threshold, determining that the remote unit overlaps with the access network equipment of the target cell; the target cell is an adjacent cell of which the signal strength is greater than a signal strength threshold in the adjacent cells.

That is to say, the AU may compare the signal strength in the signal information of the neighboring cell of each DP with a signal strength threshold, and if the signal strength is greater than the signal strength threshold, consider that the DP overlaps with the neighboring cell that is greater than the signal strength threshold, and if the signal strength is not greater than the signal strength threshold, determine that the coverage type of the DP does not overlap with the access network device to which the neighboring cell belongs.

For example, taking the signal information in table 1 as an example, assuming that the signal strength threshold is-120 dBm, in table 1, the signal strengths of two neighboring cells N1 and N2 of DP1 are both greater than-120 dBm, and then it can be obtained that DP1 overlaps both N1 and N2, and meanwhile, the signal strength of neighboring cell N2 of DP2 is also greater than-120 dBm, then it can be obtained that DP2 overlaps N2.

After determining whether the DP overlaps with the adjacent cell, what type of access network device the overlapping adjacent cell belongs to may be further determined, and the signal information of the adjacent cell further includes the transmission power of the access network device the adjacent cell belongs to, optionally, the following steps a21 and a22 may be employed to determine:

a21, determining the type of the access network device to which the target cell belongs according to the transmitting power of the access network device to which the target cell belongs and a preset transmitting power threshold; the type of access network device includes a macro station or a micro station.

A22, determining the coverage type of the remote unit as overlapping with the access network device to which the target cell belongs based on the type of the access network device to which the target cell belongs.

In a21-a22, a macro station represents a cabinet type integrated access network device, which is an outdoor base station, and a micro station represents a three-level architecture access network device of AU + CP + DP, which is usually an indoor distributed base station. The predetermined transmit power threshold may be determined according to practical situations, and may be, for example, 30dBm, 35dBm, or the like. When the access network equipment is judged, the transmitting power of the access network equipment of the DP adjacent cell can be compared with a preset transmitting power threshold, if the transmitting power is greater than the transmitting power threshold, the access network equipment is considered to be the macro station, and if the transmitting power is not greater than the transmitting power threshold, the access network equipment is considered to be the micro station.

Taking the example of the transmission power threshold of 30dBm as an example, referring to the transmission power data of the neighboring cells in table 1, it can be seen that if the transmission power 43dBm of the neighboring cell N1 of DP1 is greater than 30dBm, then N1 can be considered as a macro station, and if the transmission power 24dBm of N2 is less than 30dBm, then N2 can be considered as a micro station, and similarly, it can be determined that the neighboring cell N2 of DP2 is a micro station. Combining the obtained overlapping condition and the type judgment of the access network equipment, it can be concluded that the neighboring cell of DP1 has macro station N1 and micro station N2, both of which overlap with the coverage of DP1, so the coverage type of DP1 is micro-overlapping with the macro, and the neighboring cell of DP2 has only micro station N2, and overlaps with the coverage of DP2, so the coverage type of DP2 is micro-overlapping only.

Certainly, there are other situations that are not in table 1, then, the determination may be performed according to the method in this embodiment, if it is determined that the access network devices of the adjacent cells are all macro stations according to the transmission power, the coverage type of the DP is considered to be only overlapped with the macro, if all the access network devices are micro stations, the coverage type of the DP is considered to be only overlapped with the micro, and if both the macro stations and the micro stations exist, the coverage type of the DP is considered to be overlapped with the macro and the micro stations; if there is no neighboring cell satisfying the above conditions, the coverage type of the DP is considered as not overlapping with the macro and/or the micro, that is, four coverage types can be finally obtained, which are: micro-overlapping with macro (overlapping with both macro and micro-stations), non-overlapping with macro and/or micro-overlapping with macro-stations and/or micro-stations, overlapping with macro-stations only (overlapping with macro-stations only), overlapping with micro-stations only (overlapping with micro-stations only).

S304, determining the interference type of each remote unit based on the coverage type of each remote unit and the quality information of the UE associated with the remote unit.

In this step, the quality information of the UE includes a quality measurement value of the UE, which may include a signal to interference plus noise ratio (signal power/interference power and noise power sum value) of uplink and downlink communication, a satisfaction degree of uplink and downlink communication (which may be represented by uplink and downlink decoding accuracy, Qos service quality, and the like).

Optionally, when determining the interference type in this step, the following steps B1-B3 may be adopted to perform the determination:

b1, determining the number of target UEs in the UE associated with the remote unit according to the quality measurement value of the UE associated with any remote unit and a preset quality value threshold; the target UE is a UE whose quality measurement value is below the quality value threshold.

B2, obtaining the ratio of the number of the target UEs and the total number of the UEs associated with the remote unit based on the number of the target UEs and the total number of the UEs associated with the remote unit.

B3, if the ratio is greater than the preset ratio threshold, determining the interference type of the remote unit as interfered.

In B1-B3, the preset quality value threshold may be set according to actual conditions, such as 3dB, 4dB, etc., and the preset ratio threshold may also be set according to actual conditions, such as 3%, 5%, etc.

For a DP, the AU may compare the quality measurement value of each UE associated with the DP with a preset quality value threshold, and if the quality measurement value of a certain UE is lower than the quality value threshold, take the UE as a target UE, that is, a UE with poor quality, so as to obtain the number of target UEs in each DP, and according to the method, obtain the number of target UEs in each DP. In addition, when determining the target UE, any one of the quality measurement values of the UE may be compared with the corresponding quality value threshold, and the target UE is determined according to the comparison result, or all the quality measurement values of the UE may be compared with the corresponding quality threshold, and the comparison result is obtained by synthesis, and then the target UE is determined.

Continuing with a DP, the AU may divide the number of target UEs under the DP by the total number of UEs associated with the DP to obtain a ratio of the two, and then compare the ratio with a ratio threshold, if the ratio is greater than the ratio threshold, it indicates that the poor quality UEs account for a larger ratio, it indicates that the DP is interfered, otherwise, it may be considered that the DP is not interfered. Optionally, when determining that the DP is interfered, it may also be determined, according to a type of an access network device to which the target cell belongs, that the interference type of the DP is interfered by the access network device to which the target cell belongs, that is, when determining that the DP is interfered, it may be obtained by combining the determined overlapping of the DP and which access network device, which type of access network device the DP is interfered by. Other DPs can also be judged according to the method to obtain the final result.

Illustratively, continuing with the data in table 1, assuming that the above-mentioned DP1 is interfered and DP1 overlaps with macro station N1 and micro station N2, it can be found that the DP1 is interfered by both macro station and micro station, i.e. the type of interference of the DP is macro-micro interference.

Of course, there are other situations other than those in table 1, so that the method according to this embodiment may be used to determine, and finally, six interference types may be obtained, which are: macro-interference, macro-interference free, micro-interference free, macro-micro interference free.

The power adjustment method provided in this embodiment may compare the signal information of the neighboring cell reported by each DP with a preset signal strength threshold to obtain the coverage type of each DP, and obtain the interference type of each DP by combining the quality information of the UE associated with each DP. In this embodiment, since the process of determining the coverage type of the DP by the signal strength threshold is relatively simple and fast, the speed of determining the coverage type and the interference type as a whole can be increased, and thus the speed of adjusting the DP power can be increased.

In another embodiment, another power adjustment method is provided, and this embodiment relates to a specific process of how to adjust the transmission power of each DP according to the coverage type and interference type of each DP and the mobility information. On the basis of the above embodiment, as shown in fig. 4, the above S208 may include the following steps:

s402, determining the remote unit to be adjusted and the adjustment strategy according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit.

In this step, a table of correspondence between different adjustment conditions and power adjustment policies may be preset, where the adjustment conditions refer to coverage types, interference types, and mobility information of different DPs, and a DP meeting the adjustment conditions may be used as a DP to be adjusted, and then a power adjustment policy corresponding to the adjustment conditions is determined from the preset table and used as the power adjustment policy of the DP to be adjusted. The pre-established correspondence table may be referred to as the following table 2:

TABLE 2

In table 2, the blank of the table is no, where the mobility information indicates whether the handover success rate is lower than the preset handover success rate threshold or whether the handover failure rate is higher than the preset handover failure rate threshold, so the result is yes or no in the table.

For example, continuing with the DP1 in table 1, assuming that the coverage type of the DP1 is macro-micro overlapping, the interference type is macro-micro interference (i.e., macro-micro interference is yes), and the handover success rate is not lower than the preset handover success rate threshold (i.e., no movement information is), the DP1 may be considered as the DP to be adjusted, and the corresponding power adjustment policy may be obtained from table 2 as to reduce the transmission power.

It should be noted that, in the present embodiment, the adjusted DP is an interfered DP or a DP with limited mobility. Under a macro-micro scene, the power of the interfered DP can be increased as much as possible when the DP is interfered by macro-micro, the DP coverage is expanded to absorb more users, and the uplink interference of macro-station users to a micro-station is reduced; in a pico-scene, when being interfered by a micro station, the DP can minimize the interference between the micro stations by reducing the transmitting power, so that the interference harmony between the micro stations is realized; when the coverage hole cannot ensure the basic mobility of the UE, the transmitting power of the DP is increased as much as possible to improve the coverage range of the boundary DP and reduce the coverage hole. In summary, in this embodiment, according to different scenarios in table 2, dynamic adjustment of DP power can be implemented, inter-cell interference is reduced, cell coverage is enhanced, and user perception is improved, thereby improving system communication performance.

S404, acquiring the power adjustment amount corresponding to the remote unit to be adjusted and the original transmitting power of the remote unit to be adjusted.

In this embodiment, after determining the adjustment strategy of the DP to be adjusted and how to adjust the transmission power of the DP, the S402 needs to know how much power to adjust the DP to be adjusted, that is, needs to know the power adjustment amount and the original transmission power, where the original transmission power may be considered as the power that is originally allocated by the AU to each DP, and can be obtained after the AU is allocated in advance.

When the power adjustment amount of the DP to be adjusted is obtained, optionally, a preset power adjustment step length may be obtained, and the power adjustment step length is determined as the power adjustment amount; or, obtaining a maximum difference between the signal strength of the cell where the DP to be adjusted is located and the signal strength of the neighboring cell, and determining the maximum difference as the power adjustment amount. The preset power adjustment step size may be determined according to actual conditions, and may be, for example, 5dBm, 10dBm, or the like. Or, the AU may also obtain, through the UE, the signal strength of the serving cell that is measured and reported by the UE, that is, the signal strength of the current serving cell of the AU, which may be the reference signal strength or the broadcast signal strength, and then make a difference between the signal strength of the current serving cell of the AU and the signal strengths of all neighboring cells to obtain a plurality of differences, find out the maximum difference from the differences, and use the maximum difference as the power adjustment amount.

For example, assuming that the signal strength of the current serving cell of the AU itself is-95 dBm, and DP1 in table 1 is taken as an example of DP to be adjusted, the difference between the signal strength of-95 dBm and the signal strength of two adjacent cells under DP1 in table 1 can be calculated, i.e. the difference between-95 dBm and-110 dBm, -112dBm in table 1 is calculated, and 2 differences are obtained, respectively: 15dB, 17dB, then 17dB can be taken as the power adjustment for DP 1.

S406, adjusting the original transmitting power of the remote unit to be adjusted according to the adjustment strategy and the power adjustment amount corresponding to the remote unit to be adjusted, so as to obtain the target transmitting power corresponding to the remote unit to be adjusted.

In this step, after obtaining the DP to be adjusted and the corresponding adjustment strategy, the power adjustment amount may be added or subtracted to the original transmission power of the DP to be adjusted to obtain the final transmission power, that is, the target transmission power.

Illustratively, continuing with the DP1 example in table 1 above, assuming that the original transmit power of DP1 is 20dBm, the corresponding power adjustment strategy is to increase the transmit power by 17dB, and then the final target transmit power of DP1 is 37 dBm.

Generally, a large transmission power corresponds to a large bandwidth, a small transmission power corresponds to a small bandwidth, and then the bandwidth corresponding to the DP needs to be adjusted while the transmission power of the DP is adjusted. The total system bandwidth refers to a bandwidth corresponding to the whole AU + CP + DP system, and generally, when a station is opened, an AU can be set in advance, so that the AU can obtain the total system bandwidth. When determining the bandwidth corresponding to the DP to be adjusted, the AU may make a ratio between the original transmit power of the DP to be adjusted and the target transmit power thereof to obtain a power ratio, and then multiply the power ratio by the total bandwidth of the system, where the obtained product is the target bandwidth of the DP to be adjusted.

The power adjustment method provided in this embodiment may determine the DP to be adjusted and the corresponding adjustment policy according to the coverage type and the interference type of each DP and the mobility information, and obtain the target transmission power corresponding to the DP to be adjusted by combining the obtained power adjustment amount and the original transmission power of the DP to be adjusted. In this embodiment, because the DP to be adjusted may be determined by the coverage type, the interference type, and the mobile information, and the transmit power of the DP to be adjusted is adjusted, instead of blindly adjusting the transmit power of all DPs, the DP adjusted by the method of this embodiment is more targeted, so that the problem that interference does not occur between the DPs due to blind adjustment of other DPs may also be avoided.

In another embodiment, another power adjustment method is provided, and this embodiment relates to a specific procedure of how to determine the transmission power and bandwidth of the non-adjusted DP other than the DP to be adjusted. On the basis of the above embodiment, as shown in fig. 5, the method may further include the following steps:

s502, acquiring non-adjustment remote units from the coverage area of the access network equipment to which the remote units to be adjusted belong, and acquiring the service requirement of each non-adjustment remote unit; the traffic demand of the non-regulatory remote unit is the traffic demand of the UE associated with the non-regulatory remote unit.

In this step, taking DP in table 1 as an example, DP1 and DP2 in table 1 are all DP within AU coverage, and assuming DP1 is the DP to be adjusted, the remaining DP2 is the non-adjusted DP. In addition, the service requirement of the non-adjustment DP can be reported to the core network device by the UE associated with the non-adjustment DP, and the core network device sends the processed service requirement to the AU, so that the AU can acquire the service requirement of the UE associated with the non-adjustment DP.

S504, according to the service requirement of each non-adjustment remote unit and the target bandwidth corresponding to the remote unit to be adjusted, the bandwidth and the transmitting power of each non-adjustment remote unit are determined.

In this step, when determining the bandwidth and the transmission power of each non-adjusted DP, optionally, the following steps C1-C3 may be adopted:

c1, obtaining the residual total bandwidth corresponding to all the unadjusted remote units according to the difference between the total system bandwidth and the target bandwidth.

In this step, the AU may make a difference between the total system bandwidth and the target bandwidth of the remote unit to be adjusted, and the obtained difference is the remaining total bandwidth corresponding to all non-adjusted remote units.

C2, determining the bandwidth of each non-adjusted remote unit according to the remaining total bandwidth and the service requirement of each non-adjusted remote unit.

In this step, the non-adjusted DP includes a plurality of non-adjusted DPs, and the bandwidth of each non-adjusted DP may be determined in two ways, first, a first bandwidth calculation way is introduced, and optionally, the first bandwidth calculation way may include the following steps c11-c 13:

c11, obtaining the total service requirement corresponding to all the non-adjustment remote units according to the service requirement of each non-adjustment remote unit.

c12, calculating the ratio of the service requirement of each non-adjustment remote unit to the total service requirement, and obtaining the ratio of the service requirement corresponding to each non-adjustment remote unit.

c13, obtaining the bandwidth of each non-adjustment remote unit according to the service requirement ratio and the residual total bandwidth corresponding to each non-adjustment remote unit.

In c11-c13, the AU may report the service requirements of each non-adjusted DP to the service requirements of the core network device through the UE associated with each non-adjusted DP, to obtain the service requirements of each non-adjusted DP, where the service requirements of each non-adjusted DP are the service requirements of all the UEs associated therewith, and then the service requirements of all the non-adjusted DPs may be summed, so as to obtain the total service requirements corresponding to all the non-adjusted DPs; then, the service requirement of each non-adjustment DP is compared with the total service requirement, so that each non-adjustment DP can obtain a service requirement ratio, and then the service requirement ratio of each non-adjustment DP is multiplied by the residual total bandwidth, so that each non-adjustment DP can obtain a product, wherein the product obtained by each non-adjustment DP is the corresponding bandwidth.

Next, a second bandwidth calculation method is introduced, and optionally, the second bandwidth calculation method may include the following steps c21-c 23:

c21, estimating the corresponding estimated bandwidth of each non-adjusted remote unit according to the service requirement of each non-adjusted remote unit.

c22, obtaining total estimated bandwidth according to the estimated bandwidth corresponding to each non-adjusted remote unit.

c23, determining the bandwidth of each non-adjusted remote unit according to the total estimated bandwidth and the residual total bandwidth.

In c21-c23, the AU may also report, through the UE associated with each non-adjusted DP, the service requirement of each non-adjusted DP to the service requirement of the core network device, where the service requirement may include some data, such as data throughput, and then may perform time domain or frequency domain transformation on the data in the service requirement, obtain the bandwidth of each non-adjusted DP by back-stepping, which is recorded as the estimated bandwidth of each non-adjusted DP, and sum the estimated bandwidths of all non-adjusted DPs to obtain the total estimated bandwidth.

Then, whether the total estimated bandwidth exceeds the remaining total bandwidth or not can be judged, and optionally, if the total estimated bandwidth exceeds the remaining total bandwidth, two non-adjusted DPs with the largest isolation are obtained from the non-adjusted DPs; determining an overlapping bandwidth according to the total estimated bandwidth and the non-adjusted total bandwidth; determining the bandwidths of the two non-adjusted DPs based on the overlapping bandwidths and the estimated bandwidths corresponding to the two non-adjusted DPs; determining the bandwidths of other non-adjusted DPs based on the bandwidths except the overlapping bandwidth in the residual total bandwidth and the estimated bandwidths corresponding to the other non-adjusted DPs; the other non-adjusted DPs are non-adjusted DPs except for two of the non-adjusted DPs.

For example, assuming that there are 5 DPs under AU, the DP to be adjusted is DP1, the non-adjusted DPs is DP2, DP3, DP4, DP5, the corresponding bandwidths are 150KHz, 70KHz, 95KHz, 65KHz, the distance between DP2 and DP5 is farthest, and the isolation between them is considered to be the largest, the remaining total bandwidth of DP2-DP5 is 890KHz-1250KHz, the estimated total bandwidth of DP2-DP5 is 890KHz-1270KHz, and the remaining total bandwidth is exceeded, then 890KHz-1040KHz may be allocated for DP2, 890 KHz-1110KHz may be allocated for DP3, 1110 KHz-1040KHz may be allocated for DP4, 1205KHz-1250KHz and 890KHz-910KHz may be allocated for DP 5.

C3, determining the transmission power of each non-adjusted remote unit according to the bandwidth and the total system bandwidth of each non-adjusted remote unit and the total system transmission power.

Specifically, after the bandwidth of each non-adjusted DP is obtained, a ratio between the bandwidth of each non-adjusted DP and the total bandwidth of the system may be obtained, so that each non-adjusted DP may obtain a ratio, which is recorded as a bandwidth ratio, and then the bandwidth ratio of each non-adjusted DP is multiplied by the total transmission power of the system, so as to obtain the transmission power corresponding to each non-adjusted DP.

For example, assuming that DP1 is the DP to be adjusted and DP2 is the non-adjusted DP, i.e. the remaining DP, its original transmitting power is-12 dBm, and the corresponding power adjustment amount is 14dB, then the transmitting power of DP1 can be adjusted to 2dBm from original-12 dBm plus 14 dB; assuming that the total system power is 24dBm, the ratio of the total system power 24dBm to the DP1 transmitting power 2dBm is 158 RE resources, and the total system bandwidth is 3276 REs, so the available bandwidth of DP2 is the total system bandwidth: 3276-DP1, the available bandwidth is 3118 REs, and the transmit power of DP2 is 24-10 Log (3118) — 11 dBm.

The power adjustment method provided in this embodiment may obtain the bandwidth and the transmission power of each non-adjustment DP through the bandwidth corresponding to the to-be-adjusted DP and the service requirement of each non-adjustment DP, so that the bandwidth and the transmission power of the non-adjustment DP may be updated after the transmission power of the to-be-adjusted DP is adjusted, so that the bandwidth and the transmission power corresponding to the non-adjustment DP may be more accurate, the service requirement of each non-adjustment DP may also be met, and further, interference between each other may be reduced in the communication process of each DP, and the communication performance of the system may be improved.

In another embodiment, in order to facilitate a more detailed description of the technical solution of the present application, the following description is given in conjunction with a more detailed embodiment, and the method may include the following steps S1-S17:

s1, receiving the signal information of the neighboring cell reported by each remote unit DP and the quality information of the UE associated with each DP.

S2, judging whether the signal intensity of the adjacent cell of the DP is greater than the signal intensity threshold; if yes, S3 is executed, otherwise, it is determined that the DP does not overlap with the access network device to which the neighboring cell belongs.

And S3, determining the type of the access network equipment to which the target cell belongs according to the transmitting power of the access network equipment to which the target cell belongs and a preset transmitting power threshold.

S4, determining, based on the type of the access network device to which the target cell belongs, that the coverage type of the DP overlaps with the access network device to which the target cell belongs.

And S5, determining the number of target UEs in the DP-associated UEs according to the quality measurement value of the DP-associated UEs and a preset quality value threshold.

S6, obtaining a ratio of the number of the target UEs to the total number of the DP-associated UEs based on the number of the target UEs and the total number of the DP-associated UEs, and judging whether the ratio is greater than a preset ratio threshold, if so, executing S7, otherwise, determining that the DP is not interfered.

And S7, determining the interference type of the DP as being interfered by the access network equipment to which the target cell belongs according to the type of the access network equipment to which the target cell belongs.

S8, movement information of each DP is acquired.

And S9, determining the DP to be adjusted and the adjustment strategy according to the coverage type of each DP, the interference type of each DP and the movement information of each DP.

S10, acquiring a preset power adjustment step length, and determining the power adjustment step length as a power adjustment amount; or, obtaining a maximum difference between the signal strength of the cell where the DP to be adjusted is located and the signal strength of the neighboring cell, and determining the maximum difference as the power adjustment amount.

And S11, acquiring the original transmitting power corresponding to the DP to be adjusted.

And S12, adjusting the original transmitting power of the DP to be adjusted according to the adjustment strategy and the power adjustment amount corresponding to the DP to be adjusted, and obtaining the target transmitting power corresponding to the DP to be adjusted.

And S13, determining the target bandwidth corresponding to the DP to be adjusted according to the target transmitting power corresponding to the DP to be adjusted, the original transmitting power of the DP to be adjusted and the total bandwidth of the system.

And S14, acquiring the non-adjusted DP and acquiring the service requirement of each non-adjusted DP.

And S15, obtaining the residual total bandwidth corresponding to all the non-adjusted DPs according to the difference value between the total bandwidth of the system and the target bandwidth.

S16, obtaining the total service requirement corresponding to all the non-adjusted DPs according to the service requirement of each non-adjusted DP; calculating the occupation ratio of the service requirements of each non-adjusted DP on the total service requirements to obtain the corresponding service requirement occupation ratio of each non-adjusted DP; and obtaining the bandwidth of each non-adjusted DP according to the service demand occupation ratio and the residual total bandwidth corresponding to each non-adjusted DP. Alternatively, the bandwidth of each non-adjusted DP is determined by the method of S17.

S17, estimating the corresponding estimated bandwidth of each non-adjustment DP according to the service requirement of each non-adjustment DP; obtaining a total estimated bandwidth according to the estimated bandwidth corresponding to each non-adjusted DP; and judging whether the total estimated bandwidth exceeds the residual total bandwidth, and determining the bandwidth of each non-adjusted DP by adopting a maximum isolation principle.

A specific example is given below, referring to fig. 6, assuming that the indoor distributed base station has AU1 and AU2, the Macro station has Macro, and the two CPs under AU1, CP1 and CP2 respectively, CP1 corresponds to DP1, CP2 corresponds to DP2, and AU2 corresponds to CP3 and DP3, and assuming that DP2 is interfered by the micro station, the transmission power of DP2 can be reduced, as shown by the dotted circle at DP2 in the figure, to reduce interference between the micro stations, and assuming that DP1 is interfered by the Macro station and the micro station, the transmission power of DP1 can be increased, as shown by the dotted circle at DP1 in the figure, to reduce interference of the Macro station to the micro station, and improve the overall communication performance of the system.

It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.

In one embodiment, as shown in fig. 7, there is provided a power adjusting apparatus including: receiving module 10, determining module 11, obtaining module 12 and adjusting module 13, wherein:

a receiving module 10, configured to receive signal information of neighboring cells reported by each remote unit and quality information of user equipment UE associated with each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

a determining module 11, configured to determine a coverage type and an interference type of each remote unit according to signal information of an adjacent cell reported by each remote unit and quality information of a UE associated with the remote unit; the coverage type is used for representing the overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for representing the interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

an obtaining module 12, configured to obtain movement information of each remote unit; the mobility information is used for representing the switching condition of UE associated with the remote unit when switching the access network equipment;

an adjusting module 13, configured to adjust the transmit power of each remote unit according to the coverage type of each remote unit, the interference type of each remote unit, and the movement information of each remote unit.

For specific limitations of the power adjusting apparatus, reference may be made to the above limitations of the power adjusting method, which is not described herein again.

In another embodiment, another power adjustment apparatus is provided, and on the basis of the above embodiment, the determining module 11 may include a coverage determining unit and an interference determining unit, where:

a coverage determining unit, configured to determine a coverage type of each remote unit according to the signal information of the neighboring cell reported by each remote unit and a preset signal strength threshold;

an interference determining unit, configured to determine an interference type of each remote unit based on the coverage type of each remote unit and quality information of the UE associated with the remote unit.

Optionally, the signal information of the neighboring cell includes a signal strength of an access network device to which the neighboring cell belongs, and the coverage determining unit may include a coverage determining subunit, where the coverage determining subunit is configured to determine that the remote unit overlaps with the access network device to which the target cell belongs when the signal strength of the neighboring cell of the remote unit is greater than a signal strength threshold; the target cell is an adjacent cell of which the signal strength is greater than a signal strength threshold in the adjacent cells.

Optionally, the signal information of the neighboring cell further includes a transmission power of an access network device to which the neighboring cell belongs, and the coverage determining subunit is further configured to determine a type of the access network device to which the target cell belongs according to the transmission power of the access network device to which the target cell belongs and a preset transmission power threshold; the type of the access network equipment comprises a macro station or a micro station; based on the type of access network device to which the target cell belongs, it is determined that the coverage type of the remote unit overlaps with the access network device to which the target cell belongs.

Optionally, the quality information of the UE includes a quality measurement value of the UE, and the interference determining unit may include a number determining subunit, a ratio operator unit, and an interference determining subunit, where:

the quantity determining subunit is used for determining the quantity of target UE in the UE associated with the remote unit according to the quality measurement value of the UE associated with any one remote unit and a preset quality value threshold; the target UE is the UE with the quality measurement value lower than the quality value threshold;

the ratio operator unit is used for obtaining the ratio of the number of the target UE to the total number of the UE associated with the remote unit based on the number of the target UE and the total number of the UE associated with the remote unit;

and the interference determining subunit is used for determining the interference type of the remote unit as interfered when the ratio is greater than a preset ratio threshold.

Optionally, the interference determining subunit is further configured to determine, according to the type of the access network device to which the target cell belongs, that the interference type of the remote unit is interfered by the access network device to which the target cell belongs.

In another embodiment, another power adjustment apparatus is provided, and on the basis of the above embodiment, the adjusting module 13 may include an adjustment determining unit, an obtaining unit, and an adjusting unit, where:

an adjustment determining unit, configured to determine a remote unit to be adjusted and an adjustment policy according to a coverage type of each remote unit, an interference type of each remote unit, and movement information of each remote unit;

the acquisition unit is used for acquiring the power adjustment amount corresponding to the remote unit to be adjusted and the original transmitting power of the remote unit to be adjusted;

and the adjusting unit is used for adjusting the original transmitting power of the remote unit to be adjusted according to the adjusting strategy and the power adjusting quantity corresponding to the remote unit to be adjusted to obtain the target transmitting power corresponding to the remote unit to be adjusted.

Optionally, the obtaining unit is further configured to obtain a preset power adjustment step length, and determine the power adjustment step length as a power adjustment amount; or, obtaining the maximum difference between the signal strength of the cell where the remote unit to be adjusted is located and the signal strength of the neighboring cell, and determining the maximum difference as the power adjustment amount.

Optionally, the apparatus may further include a first bandwidth determining module, where the first bandwidth determining module is configured to determine a target bandwidth corresponding to the remote unit to be adjusted according to a target transmit power corresponding to the remote unit to be adjusted, an original transmit power of the remote unit to be adjusted, and a total system bandwidth.

In another embodiment, another power adjustment apparatus is provided, and on the basis of the above embodiment, the apparatus may further include an unadjusted obtaining module and a second bandwidth determining module, where:

the non-adjustment acquisition module is used for acquiring the non-adjustment remote units from the coverage range of the access network equipment to which the remote units to be adjusted belong and acquiring the service requirement of each non-adjustment remote unit; the service requirement of the non-adjustment remote unit is the service requirement of UE associated with the non-adjustment remote unit;

and the second bandwidth determining module is used for determining the bandwidth and the transmitting power of each non-adjustment remote unit according to the service requirement of each non-adjustment remote unit and the target bandwidth corresponding to the remote unit to be adjusted.

Optionally, the second bandwidth determining module may include a remaining bandwidth determining unit, an unadjusted bandwidth determining unit, and a power determining unit, where:

a residual bandwidth determining unit, configured to obtain a residual total bandwidth corresponding to all non-adjusted remote units according to a difference between a total system bandwidth and a target bandwidth;

a non-adjustment bandwidth determining unit, configured to determine a bandwidth of each non-adjustment remote unit according to the remaining total bandwidth and a service requirement of each non-adjustment remote unit;

and the power determining unit is used for determining the transmitting power of each non-adjustment remote unit according to the bandwidth and the total system bandwidth of each non-adjustment remote unit and the total system transmitting power.

Optionally, the non-adjustment remote unit includes a plurality of non-adjustment remote units, and the non-adjustment bandwidth determining unit may include a requirement determining subunit, a calculating subunit, and a bandwidth determining subunit, where:

a requirement determining subunit, configured to obtain, according to the service requirements of each non-adjusted remote unit, a total service requirement corresponding to all the non-adjusted remote units;

the calculating subunit is used for calculating the occupation ratio of the service requirements of each non-adjusted remote unit on the total service requirements to obtain the corresponding service requirement occupation ratio of each non-adjusted remote unit;

and the bandwidth determining subunit is used for obtaining the bandwidth of each non-adjustment remote unit according to the service demand ratio and the remaining total bandwidth corresponding to each non-adjustment remote unit.

Optionally, the non-adjusting remote unit includes a plurality of non-adjusting remote units, and the non-adjusting bandwidth determining unit may include an estimating subunit, a total bandwidth determining subunit, and a non-adjusting bandwidth determining subunit, where:

the estimating subunit is configured to estimate, according to a service requirement of each non-adjustment remote unit, an estimated bandwidth corresponding to each non-adjustment remote unit;

the total bandwidth determining subunit is used for obtaining a total estimated bandwidth according to the estimated bandwidth corresponding to each non-adjusted remote unit;

a non-adjusted bandwidth determining subunit for determining the bandwidth of each non-adjusted remote unit based on the total estimated bandwidth and the remaining total bandwidth.

Optionally, the non-adjusted bandwidth determining subunit is further configured to obtain two non-adjusted remote units with the largest isolation from each non-adjusted remote unit when the total estimated bandwidth exceeds the remaining total bandwidth; determining an overlapping bandwidth according to the total estimated bandwidth and the non-adjusted total bandwidth; determining bandwidths of the two non-adjusted remote units based on the overlapping bandwidths and the estimated bandwidths corresponding to the two non-adjusted remote units; determining the bandwidths of other non-adjusted remote units based on the bandwidths of the residual total bandwidths except the overlapping bandwidth and the estimated bandwidths corresponding to the other non-adjusted remote units; the other non-adjusted remote units are the non-adjusted remote units of each non-adjusted remote unit except for the two non-adjusted remote units.

The various modules in the power regulating apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the access network equipment, and can also be stored in a memory in the access network equipment in a software form, so that the processor can call and execute operations corresponding to the modules.

The power adjustment method provided by the embodiment of the present application may be applied to the access network device shown in fig. 8. The access network equipment comprises a bus, and a processor, a memory, an external memory, a transceiver and the like are connected to the bus. The memory comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The computer program is executed by a processor to implement a power adjustment method. The external memory may be a Hard Disk (HD). An input device for inputting various information and the like, a display device for displaying various information and the like, and a clock may be connected to the bus. In addition, a transceiver may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.

Those skilled in the art will appreciate that the architecture shown in fig. 8 is a block diagram of only a portion of the architecture associated with the subject application and does not constitute a limitation on the access network equipment to which the subject application applies, and that a particular access network equipment may include more or less components than those shown, or combine certain components, or have a different arrangement of components.

In one embodiment, there is provided an access network device comprising a memory and a processor, the memory having stored therein a computer program that when executed by the processor performs the steps of:

In one embodiment, the processor, when executing the computer program, further performs the steps of:

determining the coverage type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and a preset signal intensity threshold; the interference type for each remote unit is determined based on the coverage type for each remote unit and the quality information for the UE associated with the remote unit.

determining the type of the access network equipment to which the target cell belongs according to the transmitting power of the access network equipment to which the target cell belongs and a preset transmitting power threshold; the type of the access network equipment comprises a macro station or a micro station; based on the type of access network device to which the target cell belongs, it is determined that the coverage type of the remote unit overlaps with the access network device to which the target cell belongs.

determining the number of target UEs in the UE associated with the remote unit according to the quality measurement value of the UE associated with any remote unit and a preset quality value threshold; the target UE is the UE with the quality measurement value lower than the quality value threshold; obtaining a ratio of the number of the target UE to the total number of the UE associated with the remote unit based on the number of the target UE and the total number of the UE associated with the remote unit; if the ratio is greater than a preset ratio threshold, determining the interference type of the remote unit as interfered.

determining a remote unit to be adjusted and an adjustment strategy according to the coverage type of each remote unit, the interference type of each remote unit and the movement information of each remote unit; acquiring power adjustment quantity corresponding to the remote unit to be adjusted and original transmitting power of the remote unit to be adjusted; and adjusting the original transmitting power of the remote unit to be adjusted according to the adjustment strategy and the power adjustment amount corresponding to the remote unit to be adjusted to obtain the target transmitting power corresponding to the remote unit to be adjusted.

acquiring a preset power adjustment step length, and determining the power adjustment step length as a power adjustment amount; or, obtaining the maximum difference between the signal strength of the cell where the remote unit to be adjusted is located and the signal strength of the neighboring cell, and determining the maximum difference as the power adjustment amount.

acquiring non-adjustment remote units from the coverage range of the access network equipment to which the remote units to be adjusted belong, and acquiring the service requirement of each non-adjustment remote unit; the service requirement of the non-adjustment remote unit is the service requirement of UE associated with the non-adjustment remote unit; and determining the bandwidth and the transmitting power of each non-adjustment remote unit according to the service requirement of each non-adjustment remote unit and the target bandwidth corresponding to the remote unit to be adjusted.

obtaining residual total bandwidth corresponding to all non-adjusted remote units according to the difference value between the total bandwidth of the system and the target bandwidth; determining the bandwidth of each non-adjusted remote unit according to the remaining total bandwidth and the service requirement of each non-adjusted remote unit; the transmit power of each non-adjusted remote unit is determined based on the bandwidth and the total system bandwidth of each non-adjusted remote unit and the total system transmit power.

obtaining total service requirements corresponding to all the non-adjusted remote units according to the service requirements of the non-adjusted remote units; calculating the ratio of the service requirements of each non-adjusted remote unit to the total service requirements to obtain the ratio of the service requirements corresponding to each non-adjusted remote unit; and obtaining the bandwidth of each non-adjustment remote unit according to the service demand ratio and the residual total bandwidth corresponding to each non-adjustment remote unit.

estimating the corresponding estimated bandwidth of each non-adjustment remote unit according to the service requirement of each non-adjustment remote unit; obtaining a total estimated bandwidth according to the estimated bandwidth corresponding to each non-adjusted remote unit; determining the bandwidth of each non-adjusted remote unit according to the total estimated bandwidth and the remaining total bandwidth.

if the total estimated bandwidth exceeds the residual total bandwidth, acquiring two non-adjusted remote units with the maximum isolation from each non-adjusted remote unit; determining an overlapping bandwidth according to the total estimated bandwidth and the non-adjusted total bandwidth; determining bandwidths of the two non-adjusted remote units based on the overlapping bandwidths and the estimated bandwidths corresponding to the two non-adjusted remote units; determining the bandwidths of other non-adjusted remote units based on the bandwidths of the residual total bandwidths except the overlapping bandwidth and the estimated bandwidths corresponding to the other non-adjusted remote units; the other non-adjusted remote units are the non-adjusted remote units of each non-adjusted remote unit except for the two non-adjusted remote units.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

In one embodiment, the computer program when executed by the processor further performs the steps of:

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of power adjustment, the method comprising:

determining the coverage type and the interference type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and the quality information of the UE associated with the remote unit; the coverage type is used for characterizing an overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for characterizing an interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

obtaining movement information for each of said remote units; the mobility information is used for characterizing the switching condition of the UE associated with the remote unit when switching the access network equipment;

2. The method of claim 1, wherein the determining the coverage type and the interference type of each remote unit according to the signal information of the neighboring cell reported by each remote unit and the quality information of the UE associated with the remote unit comprises:

determining the coverage type of each remote unit according to the signal information of the adjacent cell reported by each remote unit and a preset signal strength threshold;

determining an interference type for each of the remote units based on the coverage type for each of the remote units and the quality information for the UE associated with the remote unit.

3. The power adjustment method of claim 2, wherein the signal information of the neighboring cell includes signal strength of access network equipment to which the neighboring cell belongs, and the determining the coverage type of each remote unit according to the signal information of the neighboring cell reported by each remote unit and a preset signal strength threshold includes:

if the signal strength of the adjacent cell of the remote unit is greater than the signal strength threshold, determining that the remote unit and the access network equipment to which the target cell belongs are overlapped; and the target cell is an adjacent cell of which the signal strength is greater than the signal strength threshold in the adjacent cell.

4. The method of claim 3, wherein the signal information of the neighboring cell further includes a transmission power of an access network device to which the neighboring cell belongs, and wherein the determining that the remote unit overlaps with the access network device to which the target cell belongs comprises:

determining, based on the type of the access network device to which the target cell belongs, a coverage type of the remote unit to overlap with the access network device to which the target cell belongs.

5. The method of claim 4, wherein the UE quality information includes UE quality measurements, and wherein determining the interference type for each remote unit based on the coverage type of each remote unit and the UE quality information associated with the remote unit comprises:

determining the number of target UEs in the UE associated with the remote unit according to the quality measurement value of any one UE associated with the remote unit and a preset quality value threshold; the target UE is the UE with the quality measurement value lower than the quality value threshold;

obtaining a ratio of the number of the target UEs to the total number of the UEs associated with the remote unit based on the number of the target UEs and the total number of the UEs associated with the remote unit;

and if the ratio is greater than a preset ratio threshold, determining that the interference type of the remote unit is interfered.

6. The method of claim 5, wherein the determining that the remote unit's interference type is interfered comprises:

and determining the interference type of the remote unit as being interfered by the access network equipment to which the target cell belongs according to the type of the access network equipment to which the target cell belongs.

7. The method of any of claims 1-6, wherein said adjusting the transmit power of each of the remote units based on the coverage type of each of the remote units, the interference type of each of the remote units, and the mobility information of each of the remote units comprises:

acquiring power adjustment amount corresponding to the remote unit to be adjusted and original transmitting power of the remote unit to be adjusted;

8. The method according to claim 7, wherein the obtaining the power adjustment amount corresponding to the remote unit to be adjusted comprises:

acquiring a preset power adjustment step length, and determining the power adjustment step length as the power adjustment amount;

or, obtaining a maximum difference between the signal strength of the cell where the remote unit to be adjusted is located and the signal strength of the adjacent cell, and determining the maximum difference as the power adjustment amount.

9. The method of power adjustment according to claim 7, further comprising:

and determining the target bandwidth corresponding to the remote unit to be adjusted according to the target transmitting power corresponding to the remote unit to be adjusted, the original transmitting power of the remote unit to be adjusted and the total system bandwidth.

10. The method of power adjustment according to claim 9, further comprising:

11. The method of claim 10, wherein the determining the bandwidth and the transmit power of each non-adjusted remote unit according to the traffic demand of each non-adjusted remote unit and the target bandwidth corresponding to the remote unit to be adjusted comprises:

obtaining the residual total bandwidth corresponding to all the unadjusted remote units according to the difference value between the total system bandwidth and the target bandwidth;

and determining the transmission power of each non-adjusted remote unit according to the bandwidth of each non-adjusted remote unit, the total system bandwidth and the total system transmission power.

12. The method of claim 11, wherein said non-coordinating remote unit comprises a plurality of non-coordinating remote units, and wherein said determining a bandwidth for each of said non-coordinating remote units based on said remaining total bandwidth and a traffic demand for each of said non-coordinating remote units comprises:

obtaining total service requirements corresponding to all the non-adjusted remote units according to the service requirements of all the non-adjusted remote units;

and obtaining the bandwidth of each non-adjustment remote unit according to the service demand ratio corresponding to each non-adjustment remote unit and the residual total bandwidth.

13. The method of claim 11, wherein said non-coordinating remote unit comprises a plurality of non-coordinating remote units, and wherein said determining a bandwidth for each of said non-coordinating remote units based on said remaining total bandwidth and a traffic demand for each of said non-coordinating remote units comprises:

estimating an estimated bandwidth corresponding to each non-adjusted remote unit according to the service requirement of each non-adjusted remote unit;

and determining the bandwidth of each non-adjusted remote unit according to the total estimated bandwidth and the residual total bandwidth.

14. The method of claim 13 wherein said determining a bandwidth for each of said non-adjusted remote units based on said total estimated bandwidth and said total remaining bandwidth comprises:

if the total estimated bandwidth exceeds the remaining total bandwidth, two non-adjusted remote units with the maximum isolation degree are obtained from each non-adjusted remote unit;

determining bandwidths of the two non-adjusted remote units based on the overlapping bandwidths and estimated bandwidths corresponding to the two non-adjusted remote units;

determining the bandwidths of other non-adjusted remote units based on the bandwidths of the remaining total bandwidths except the overlapping bandwidth and the estimated bandwidths corresponding to the other non-adjusted remote units; the other non-adjusted remote units are non-adjusted remote units of each of the non-adjusted remote units except the two non-adjusted remote units.

15. A power regulation apparatus, characterized in that the apparatus comprises:

a determining module, configured to determine a coverage type and an interference type of each remote unit according to signal information of an adjacent cell reported by each remote unit and quality information of the UE associated with the remote unit; the coverage type is used for characterizing an overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for characterizing an interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

an obtaining module, configured to obtain movement information of each remote unit; the mobility information is used for characterizing the switching condition of the UE associated with the remote unit when switching the access network equipment;

16. An access network device comprising a transceiver, a memory storing a computer program, and a processor, characterized in that,

the transceiver is used for receiving signal information of adjacent cells reported by remote units of each remote unit and quality information of User Equipment (UE) related to each remote unit; wherein the adjacent cell is a cell adjacent to the access network device to which the remote unit belongs;

when the processor executes the computer program, the processor is configured to determine a coverage type and an interference type of each remote unit according to signal information of an adjacent cell reported by each remote unit and quality information of the UE associated with the remote unit; the coverage type is used for characterizing an overlapping condition of the remote unit and the access network equipment to which the adjacent cell belongs, and the interference type is used for characterizing an interference condition of the remote unit by the access network equipment to which the adjacent cell belongs;

the processor, when executing the computer program, is further configured to obtain movement information for each of the remote units; the mobility information is used for characterizing the switching condition of the UE associated with the remote unit when switching the access network equipment;

17. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 14.