A noise floor suppression method, device and computer readable storage medium

Abstract

The application provides a noise floor suppression method, device and computer readable storage medium, the method comprising: generating a power control command word of a terminal in response to the need to adjust the transmit power of the terminal; if the terminal is in the overlapping coverage area of a serving cell and a neighboring cell, sending the power control command word to the neighboring cell, so that the neighboring cell determines whether the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the determination result; receiving the response information returned by the neighboring cell, and determining whether to issue the power control command word to the terminal according to the response information. The method, device and computer readable storage medium can solve the problem that the existing noise floor suppression method does not consider the influence of the transmit power of the terminal under the serving cell on the noise floor of the neighboring cell in a large traffic scenario, resulting in poor noise floor suppression effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a floor noise suppression method, device and computer readable storage medium. BACKGROUND

[0002] With the development of society, people's spiritual and cultural life is more colorful, various large-scale events, concerts and other activities are frequently held, in the large traffic scenario, based on the characteristics of large closed venues such as stadiums, the single area is large, the space is open, and the user distribution density is high, a large number of users will initiate voice or data services at the same time in a short time, and the transmission power of user terminals in the overlapping coverage area between different cells will quickly raise the floor noise of adjacent cells, which will greatly affect the perception of users in the venue.

[0003] Therefore, in order to effectively guarantee the smoothness of real-time communication services such as WeChat, TikTok, live broadcast platform and various self-media platforms, how to suppress the floor noise of adjacent cells is a problem that needs to be solved at present.

[0004] However, the existing floor noise suppression method does not consider the influence of the transmission power of terminals under the serving cell on the floor noise of adjacent cells in the large traffic scenario, resulting in poor floor noise suppression effect. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a floor noise suppression method, device and computer readable storage medium to solve the problem that the existing floor noise suppression method does not consider the influence of the transmission power of terminals under the serving cell on the floor noise of adjacent cells in the large traffic scenario, resulting in poor floor noise suppression effect.

[0006] In a first aspect, the present application provides a floor noise suppression method applied to a serving cell, comprising:

[0007] In response to the need to adjust the transmission power of the terminal, a power control command word of the terminal is generated;

[0008] If the terminal is a terminal in the overlapping coverage area of the serving cell and an adjacent cell, the power control command word is sent to the adjacent cell, so that the adjacent cell judges whether the influence of the terminal on the floor noise of the adjacent cell after executing the corresponding power control command is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the judgment result;

[0009] The response information returned by the adjacent cell is received, and it is determined whether to issue the power control command word to the terminal according to the response information.

[0010] Further, the generation of the power control command word of the terminal specifically comprises:

[0011] According to a block error rate BLER corresponding to a service requirement of the terminal and a signal to interference plus noise ratio SINR that can be reached, the power control command word is obtained.

[0012] Further, before the power control command word is sent to the neighboring cell if the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, the method further comprises:

[0013] issuing a measurement configuration to the terminal, the measurement configuration being used to instruct the terminal to perform measurement on the serving cell and the neighboring cell;

[0014] receiving a measurement report reported by the terminal after the terminal performs measurement on the serving cell and the neighboring cell according to the measurement configuration;

[0015] judging whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal.

[0016] Further, judging whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal specifically comprises:

[0017] if a level value of the serving cell and a level value of the neighboring cell in the measurement report reported by the terminal are within a preset range, judging that the terminal is a terminal in the overlapping coverage area.

[0018] Further, deciding whether to issue the power control command word to the terminal according to the response information specifically comprises:

[0019] in response to the response information indicating that an influence of the terminal executing a corresponding power control command on a floor noise of the neighboring cell is within an acceptable range, issuing the power control command word to the terminal to satisfy the BLER corresponding to the service requirement of the terminal;

[0020] in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is not within the acceptable range, not issuing the power control command word to the terminal, and enabling a resource block RB allocation mechanism and / or an adaptive modulation and coding AMC mechanism for the terminal to satisfy the BLER corresponding to the service requirement of the terminal.

[0021] In a second aspect, the application provides a floor noise suppression method applied to a neighboring cell, comprising:

[0022] receive a power control command word sent by a serving cell, wherein the power control command word is generated by the serving cell in response to a need to adjust the transmit power of a terminal, and is sent after the serving cell judges that the terminal is in the overlapping coverage area of the serving cell and a neighboring cell;

[0023] judge whether the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range according to the power control command word, and return corresponding response information to the serving cell according to the judgment result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information.

[0024] Further, the judging whether the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range according to the power control command word specifically includes:

[0025] if the floor noise and the spectral efficiency of the neighboring cell satisfy the preset threshold requirement after the terminal adjusts the transmit power by executing the corresponding power control command, it is judged that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range;

[0026] if the floor noise and the spectral efficiency of the neighboring cell do not satisfy the threshold requirement after the terminal adjusts the transmit power by executing the corresponding power control command, it is judged that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is not within an acceptable range.

[0027] In a third aspect, the present application provides a floor noise suppression device arranged in a serving cell, comprising:

[0028] a generating module for generating a power control command word of a terminal in response to a need to adjust the transmit power of the terminal;

[0029] a sending module connected with the generating module, for sending the power control command word to the neighboring cell if the terminal is in the overlapping coverage area of the serving cell and the neighboring cell, so that the neighboring cell judges whether the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the judgment result;

[0030] a first receiving module connected with the sending module, for receiving the response information returned by the neighboring cell, and deciding whether to issue the power control command word to the terminal according to the response information.

[0031] In a fourth aspect, the present application provides a floor noise suppression device arranged in a neighboring cell, comprising:

[0032] The second receiving module is configured to receive a power control command word sent by a serving cell, wherein the power control command word is generated by the serving cell in response to a need to adjust the transmit power of the terminal, and is sent after it is determined that the terminal is in the overlapping coverage area of the serving cell and the neighboring cell.

[0033] The judging returning module is connected with the second receiving module and is configured to judge, according to the power control command word, whether the influence of the terminal on the floor noise of the neighboring cell after executing the corresponding power control command is within an acceptable range, and return corresponding response information to the serving cell according to the judgment result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information.

[0034] In a fifth aspect, the present application provides a floor noise suppression device, which comprises a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to realize the floor noise suppression method in the first aspect or the second aspect.

[0035] In a sixth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the floor noise suppression method in the first aspect or the second aspect.

[0036] The floor noise suppression method, device and computer readable storage medium provided by the present application first generate a power control command word of a terminal in response to a need to adjust the transmit power of the terminal, and if the terminal is in the overlapping coverage area of the serving cell and the neighboring cell, the power control command word is sent to the neighboring cell, so that the neighboring cell judges whether the influence of the terminal on the floor noise of the neighboring cell after executing the corresponding power control command is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the judgment result; then the response information returned by the neighboring cell is received, and it is decided whether to issue the power control command word to the terminal according to the response information. Before the serving cell issues a power control command for adjusting the transmit power of the terminal to the terminal in the overlapping coverage area of the serving cell and the neighboring cell, the power control command is sent to the neighboring cell to evaluate the influence of the terminal executing the power control command on the floor noise of the neighboring cell, and it is decided whether the power control command can be issued to the terminal based on the corresponding response information returned by the neighboring cell, thereby avoiding that the serving cell has a great influence on the floor noise of the neighboring cell after adjusting the transmit power of the terminal, and solving the problem that the existing floor noise suppression method does not consider the influence of the transmit power of the terminal under the serving cell on the floor noise of the neighboring cell in a large traffic scenario, resulting in poor floor noise suppression effect. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1A schematic diagram of interference for an existing macro station-macro station networking mode;

[0038] Figure 2 A flow chart of a noise floor suppression method of the embodiment 1 of the present application;

[0039] Figure 3 A scatter plot of the relationship between the spectrum efficiency and the noise floor of the embodiment of the present application;

[0040] Figure 4 A flow chart of another noise floor suppression method of the embodiment 1 of the present application;

[0041] Figure 5 A flow chart of a noise floor suppression method of the embodiment 2 of the present application;

[0042] Figure 6 A structural schematic diagram of a noise floor suppression device of the embodiment 3 of the present application;

[0043] Figure 7 A structural schematic diagram of a noise floor suppression device of the embodiment 4 of the present application;

[0044] Figure 8 A structural schematic diagram of a noise floor suppression device of the embodiment 5 of the present application. DETAILED DESCRIPTION

[0045] In order to make the skilled in the art better understand the technical solutions of the present application, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0046] It can be understood that the specific embodiments and drawings described herein are only used to explain the present application, but not to limit the present application.

[0047] It can be understood that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0048] It can be understood that, for the convenience of description, only the parts related to the present application are shown in the drawings of the present application, and the parts unrelated to the present application are not shown in the drawings.

[0049] It can be understood that each unit and module involved in the embodiments of the present application can only correspond to one entity structure, or can be composed of multiple entity structures, or multiple units and modules can be integrated into one entity structure.

[0050] It can be understood that the functions and steps marked in the flow chart and block diagram of the present application can occur in an order different from that marked in the drawings without conflict.

[0051] It can be understood that the flowcharts and block diagrams of the present application show the possible implementation architecture, function and operation of the system, device, equipment and method according to the embodiments of the present application. Each block in the flowchart or block diagram can represent a unit, module, program segment, code, which contains executable instructions for implementing the specified function. Moreover, each block or combination of blocks in the block diagram and flowchart can be implemented by a hardware-based system for implementing the specified function, or by a combination of hardware and computer instructions.

[0052] It can be understood that the units and modules involved in the embodiments of the present application can be implemented by software or by hardware, for example, the units and modules can be located in a processor.

[0053] SUMMARY

[0054] With the development of society, people's spiritual and cultural life is more colorful, various large-scale events, concerts and other activities are held frequently, in the large traffic scenario, especially in the large closed venue where concerts and large-scale events are held, the antenna is usually placed high, the wireless environment is simple and unobstructed, the signal levels of different cells in the venue will not differ too much at the same position, resulting in serious overlapping coverage, and the terminal is relatively close to the base station, and the users are dense, so the influence of the transmission power of a large number of terminals on the noise floor cannot be ignored.

[0055] As shown in FIG. 1, taking a macro station-macro station networking mode as an example, the terminal performs services in a service cell and performs uplink and downlink interaction with the service cell, but the transmission power of the terminal is an interference to the adjacent cell, which is particularly obvious in a large closed venue where users are concentrated. Figure 1

[0056] Specifically, in the special scenario of closed large traffic, the overlapping coverage between cells is serious, and the transmission power of the terminal is too large to cause great interference to the adjacent cell, resulting in a significant increase in the noise floor of the adjacent cell. In order to meet the BLER (block error rate) requirement of the service, the user in the adjacent cell needs to increase the transmission power. When the transmission power of the terminal in the adjacent cell reaches the maximum but still cannot meet the current service BLER requirement of the user, the situation that the information sent by the terminal cannot be received or parsed by the base station will occur. The terminal cannot reply the uplink ACK / NACK sent by the base station to the terminal, so the base station will continuously resend, resulting in a large decrease in effective data.

[0057] ​In summary, based on the characteristics of large monomer area, spacious space, and high user distribution density in large closed venues such as stadiums, a large number of users will simultaneously initiate voice or data services in a short time, and the transmission power of user terminals in the overlapping coverage area between different cells will rapidly raise the noise floor of adjacent cells, which will greatly affect the perception of users in the venue.

[0058] Therefore, in order to alleviate the influence of the transmission power of terminals in a large number of overlapping coverage areas on the noise floor of adjacent cells, effectively guarantee the smoothness of real-time communication services such as WeChat, TikTok, live streaming platforms, and various self-media platforms, and improve the user perception, how to suppress the cell noise floor, improve the spectrum efficiency, and improve the user perception is a problem that needs to be solved at present.

[0059] However, the existing noise floor suppression method does not consider the influence of the transmission power of terminals under the serving cell on the noise floor of adjacent cells in a large traffic scenario, resulting in poor noise floor suppression effect.

[0060] To solve the above technical problems, the present application provides a noise floor suppression method, device and computer readable storage medium. Before the serving cell sends a power control command for adjusting the transmission power of a terminal in the overlapping coverage area of the serving cell and an adjacent cell to the terminal, the power control command is sent to the adjacent cell to evaluate the influence of the terminal executing the power control command on the noise floor of the adjacent cell, and based on the response information returned by the adjacent cell, it is determined whether the power control command can be sent to the terminal, thereby avoiding the influence of the transmission power of the terminal adjusted by the serving cell on the noise floor of the adjacent cell, at least solving the problem that the existing noise floor suppression method does not consider the influence of the transmission power of the terminal under the serving cell on the noise floor of the adjacent cell in a large traffic scenario, resulting in poor noise floor suppression effect.

[0061] After introducing the basic principles of the present application, various non-limiting embodiments of the present application will be specifically introduced with reference to the accompanying drawings.

[0062] Embodiment 1

[0063] The present embodiment provides a noise floor suppression method applied to a serving cell, as shown in the figure, the method comprises: Figure 2 As shown in the figure, the method comprises:

[0064] Step S101: In response to the need to adjust the transmission power of a terminal, a power control command word of the terminal is generated.

[0065] Specifically, when the serving cell needs to adjust the transmission power of the terminal under the serving cell, the power control command word is obtained according to the block error rate BLER required by the corresponding service of the terminal and the SINR (Signal to Interference plus Noise Ratio) that can be reached by the wireless environment where the terminal is located.

[0066] Step S102: If the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, the power control command word is sent to the neighboring cell, so that the neighboring cell judges whether the impact of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the judgment result.

[0067] Specifically, if the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, the serving cell sends the power control command word to the neighboring cell, the neighboring cell receives the power control command word sent by the serving cell, and judges whether the impact of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range based on the power control command word, and returns corresponding response information to the serving cell according to the judgment result, wherein the specific method of judging whether the impact of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range is as follows:

[0068] If the floor noise and the spectral efficiency of the neighboring cell satisfy the preset threshold requirement after the terminal adjusts the transmission power by executing the corresponding power control command, it is judged that the impact of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range; if the floor noise and the spectral efficiency of the neighboring cell do not satisfy the threshold requirement after the terminal adjusts the transmission power by executing the corresponding power control command, it is judged that the impact of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is not within an acceptable range.

[0069] In an optional embodiment, before the method judges whether the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, the method further comprises:

[0070] sending a measurement configuration to the terminal, the measurement configuration being used to instruct the terminal to measure the serving cell and the neighboring cell;

[0071] receiving a measurement report reported by the terminal after the terminal measures the serving cell and the neighboring cell according to the measurement configuration;

[0072] judging whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal.

[0073] Specifically, the serving cell sends a measurement configuration to a terminal under the serving cell, instructing the terminal to measure the serving cell and a neighboring cell, the terminal receives the measurement configuration from the serving cell, measures the serving cell and the neighboring cell according to the measurement configuration, and reports a corresponding measurement report to the serving cell, and the serving cell receives the measurement report reported by the terminal, and determines whether the terminal is in an overlapping coverage area of the serving cell and the neighboring cell according to the measurement report.

[0074] In an optional embodiment, the step of determining whether the terminal is in the overlapping coverage area according to the measurement report reported by the terminal specifically comprises:

[0075] If the level values of the serving cell and the neighboring cell in the measurement report reported by the terminal are within a preset range, it is determined that the terminal is in the overlapping coverage area.

[0076] Specifically, the serving cell analyzes the measurement report reported by the terminal, and if the level value of the serving cell measured by the terminal and the level value of the neighboring cell are within a set range (preferably 6 dB), it is determined that the terminal is in the overlapping coverage area of the serving cell and the neighboring cell, i.e., the transmission power of the terminal will affect the noise floor of the neighboring cell.

[0077] Step S103: receiving the response information returned by the neighboring cell, and determining whether to send the power control command word to the terminal according to the response information.

[0078] Specifically, the serving cell receives the response information returned by the neighboring cell, and determines whether to send the power control command word to the terminal according to the response information, wherein the specific method of determining whether to send the power control command word to the terminal according to the response information is as follows:

[0079] In response to the response information indicating that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range, the power control command word is sent to the terminal to meet the BLER requirement of the corresponding service of the terminal; and in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is not within the acceptable range, the power control command word is not sent to the terminal, and a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism are enabled for the terminal to meet the BLER requirement of the corresponding service of the terminal.

[0080] It should be noted that, since only the terminal executing the corresponding power control command to increase the transmission power can cause the bottom noise and the spectral efficiency of the adjacent cell to not meet the threshold requirement (i.e. the impact on the bottom noise of the adjacent cell is not within the acceptable range), therefore, after the serving cell generates the power control command word of the terminal, the power control command word for reducing the transmission power of the terminal can be directly issued to the terminal in response to the power control command word, or after the adjacent cell receives the power control command word sent by the serving cell, the response information indicating that the impact on the bottom noise of the adjacent cell after the terminal executes the corresponding power control command is within the acceptable range can be directly returned to the serving cell in response to the power control command word, so that the serving cell issues the power control command word to the terminal.

[0081] It is worth mentioning that the present application is applicable to a large traffic scenario with serious overlapping coverage and user traffic concentration. From the perspective of power control adjustment of the terminal under the serving cell, before the serving cell issues the final power control command to the terminal, the bottom noise and spectral efficiency evaluation step of the adjacent cell is added to achieve the purpose of joint power control with the surrounding adjacent cells, to seek user perception, and to adjust the impact of the transmission power of the terminal on the spectral efficiency and bottom noise of the adjacent cell through the evaluation of the adjacent cell. A balance point can be achieved between the transmission power of the terminal and the bottom noise of the adjacent cell, so that the transmission power of the terminal is adjusted under the condition that the bottom noise of the adjacent cell is acceptable, and the purpose of suppressing the bottom noise of the adjacent cell is achieved, basically meeting the demand of a large number of users to concentrate on business in a large traffic scenario.

[0082] In a specific embodiment, taking the holding of a large concert in a stadium as an example, there are 3 sites in the current stadium, i.e. the stadium, the south side of the stadium and the north side of the stadium, each with 2 sectors, each sector opens 3.4 and 3.5 two carriers, and the time slot ratio is set to 7:3, a total of 12 cell coverage in the stadium. However, according to the busy time statistics of the large traffic index in the stadium on the night of the concert, the bottom noise of the cell in the stadium is as high as -80, the spectral efficiency is extremely low, and the connection rate is greatly affected. Among them, the large traffic index in the stadium is shown in Table 1.

[0083] Table 1: Large traffic index in the stadium

[0084]

[0085] Under the current network TDD (Time Division Duplexing) system, 7:3 time slot ratio is adopted, the relationship between the current network bottom noise and spectral efficiency is counted at busy time, and the spectral efficiency is roughly estimated (the influence of time slot ratio on bandwidth is not considered for the time being). The highest spectral efficiency can reach 14.3 bit / s / Hz, and the average spectral efficiency is 3.5 bit / s / Hz. The relationship between spectral efficiency and bottom noise is shown in Figure 3 .

[0086] As can be seen, the lifting of the background noise has a great impact on network capacity and user perception in the stadium where concerts are held.

[0087] Specifically, based on the above heavy traffic scenario, such as Figure 4 As shown, the background noise suppression method can specifically include the following steps:

[0088] Step 1: The serving cell issues measurement configuration information to the terminal;

[0089] Step 2: The terminal measures according to the measurement configuration information issued by the cell, and reports the measurement report;

[0090] Step 3: First, after the terminal reports the measurement report, the serving cell determines whether the terminal is a user in the overlapping coverage area according to the RSRP (level) in the measurement report. If the RSRP values of the serving cell and the terminal reported adjacent cells differ by 6dB or less, the terminal is considered to be a user in the overlapping coverage range of the serving cell and the adjacent cell, and the transmission power of the terminal will affect the background noise of the adjacent cell. Second, the serving cell generates the power control command word of the terminal according to the BLER target value required by the service type of the terminal and the SINR that can be achieved by the wireless environment in which the terminal is located. If the terminal is not a user in the overlapping coverage area, go to step 4; if the terminal is a user in the overlapping coverage area, when the power control command of the terminal is used to reduce the transmission power of the terminal, go to step 4, and when the power control command of the terminal is used to increase the transmission power of the terminal, go to step 5;

[0091] Step 4: The TPC (power control) command (i.e. the power control command of the terminal) contained in the DCI (Downlink Control Information, Downlink Control Information) message issued to the terminal can be directly executed, and the terminal executes according to the actual situation, and the process ends.

[0092] Step 5: The power control command of the terminal is first sent to the adjacent cell to determine the impact of the terminal executing this power control command on the background noise and spectral efficiency of the adjacent cell;

[0093] Step 6: The adjacent cell determines whether the background noise and spectral efficiency of the cell can meet the threshold requirement after the terminal executes this power control command to increase the transmission power;

[0094] Step 7: The adjacent cell sends a confirmation / non-confirmation message to the serving cell of the terminal (i.e. sends the serving cell whether the power control command will affect the background noise and spectral efficiency of the adjacent cell);

[0095] Step 8: 1. If the adjacent cell determines that the power control can be performed, go to step 9; 2. If the adjacent cell determines that the terminal executing the power control command to raise the power will cause the base station noise to be too high and the spectrum efficiency to be too low to meet the set threshold, the RB allocation and AMC mechanism are enabled to achieve the BLER convergence to the target value, and go to step 9;

[0096] Step 9: If the adjacent cell determines that the power control can be performed, the TPC command is contained in the DCI message issued by the gNodeB (5G base station), and if the adjacent cell determines that the user raising the power in the overlapping coverage area will have a great impact on the noise of the cell, the DCI message issued by the gNodeB contains the uplink radio resource allocation and modulation and coding mode information.

[0097] It is worth mentioning that the application is suitable for large venues with serious overlapping coverage and user business concentration. First, it is determined whether the terminal is a user in the overlapping coverage area, and before issuing the power control command to the terminal, the adjacent cell is informed of the impact of the terminal executing the power control command on the noise and spectrum efficiency of the adjacent cell, and it is jointly determined whether the terminal power can be raised to protect the user's business needs.

[0098] The base noise suppression method provided by the embodiment of the application first generates a power control command word of a terminal in response to the need to adjust the transmit power of the terminal, and if the terminal is a terminal in the overlapping coverage area of the serving cell and the adjacent cell, the power control command word is sent to the adjacent cell, so that the adjacent cell determines whether the impact of the terminal executing the corresponding power control command on the noise of the adjacent cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the determination result; then the response information returned by the adjacent cell is received, and it is determined whether to issue the power control command word to the terminal according to the response information. Before the serving cell issues the power control command for adjusting the transmit power of the terminal to the terminal in the overlapping coverage area of the serving cell and the adjacent cell, the power control command is sent to the adjacent cell to evaluate the impact of the terminal executing the power control command on the noise of the adjacent cell, and based on the response information returned by the adjacent cell, it is determined whether the power control command can be issued to the terminal, thereby avoiding that the serving cell has a great impact on the noise of the adjacent cell after adjusting the transmit power of the terminal, and solving the problem that the existing base noise suppression method does not consider the impact of the transmit power of the terminal under the serving cell on the noise of the adjacent cell in a large traffic scenario, resulting in poor base noise suppression effect.

[0099] Embodiment 2:

[0100] The embodiment provides a base noise suppression method, which is applied to an adjacent cell, such as Figure 5As shown, the method comprises:

[0101] Step S201: receiving a power control command word sent by a serving cell, wherein the power control command word is sent by the serving cell in response to a need to adjust the transmit power of a terminal, the serving cell generates the power control command word for the terminal, and the serving cell sends the power control command word after determining that the terminal is in an overlapping coverage area of the serving cell and a neighboring cell.

[0102] Specifically, the neighboring cell receives the power control command word sent by the serving cell.

[0103] Step S202: determining whether the impact of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range according to the power control command word, and returning corresponding response information to the serving cell according to the determination result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information.

[0104] Specifically, it is determined whether the impact of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range based on the power control command word, and corresponding response information is returned to the serving cell according to the determination result, wherein the specific method of determining whether the impact of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range is as follows:

[0105] If the noise floor and the spectral efficiency of the neighboring cell meet the preset threshold requirement after the terminal adjusts the transmit power by executing the corresponding power control command, it is determined that the impact of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range; if the noise floor and the spectral efficiency of the neighboring cell do not meet the threshold requirement after the terminal adjusts the transmit power by executing the corresponding power control command, it is determined that the impact of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is not within an acceptable range.

[0106] Embodiment 3:

[0107] As shown in the figure, the embodiment provides a noise floor suppression device arranged in a serving cell, for executing the noise floor suppression method in Embodiment 1, comprising: Figure 6 A generating module 11 is configured to generate a power control command word for a terminal in response to a need to adjust the transmit power of the terminal.

[0108]

[0109] ​The sending module 12, connected with the generating module 11, is configured to send the power control command word to the neighboring cell if the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, so that the neighboring cell judges whether the influence of the terminal executing corresponding power control command on the bottom noise of the neighboring cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the judgment result.

[0110] The first receiving module 13, connected with the sending module 12, is configured to receive the response information returned by the neighboring cell, and determine whether to issue the power control command word to the terminal according to the response information.

[0111] Further, the generating module 11 is specifically configured to:

[0112] Obtain the power control command word according to the block error rate (BLER) required by the corresponding service of the terminal and the signal to interference plus noise ratio (SINR) that can be reached.

[0113] Further, the apparatus further comprises:

[0114] The issuing module is configured to issue a measurement configuration to the terminal, which is used to instruct the terminal to measure the serving cell and the neighboring cell.

[0115] The receiving reporting module is configured to receive a measurement report reported by the terminal after measuring the serving cell and the neighboring cell according to the measurement configuration.

[0116] The judging module is configured to judge whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal.

[0117] Further, the judging module is specifically configured to:

[0118] If the level values of the serving cell and the neighboring cell in the measurement report reported by the terminal are within a preset range, it is judged that the terminal is a terminal in the overlapping coverage area.

[0119] Further, the first receiving module 13 specifically comprises:

[0120] The issuing unit is configured to issue the power control command word to the terminal to meet the BLER required by the corresponding service of the terminal if the response information indicates that the influence of the terminal executing corresponding power control command on the bottom noise of the neighboring cell is within an acceptable range.

[0121] The non-issuing unit is configured to, in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is not within an acceptable range, not issue the power control command word to the terminal, and enable a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism for the terminal to meet the BLER corresponding to the service requirement of the terminal.

[0122] Embodiment 4

[0123] As shown in Figure 7 the embodiment provides a floor noise suppression device arranged in a neighboring cell and configured to execute the floor noise suppression method in Embodiment 2, which includes:

[0124] The second receiving module 21 is configured to receive a power control command word sent by a serving cell, the power control command word being generated by the serving cell in response to a need to adjust the transmission power of a terminal and sent after judging that the terminal is in an overlapping coverage area of the serving cell and the neighboring cell.

[0125] The judgment returning module 22 is connected with the second receiving module 21 and configured to judge, according to the power control command word, whether the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range, and return corresponding response information to the serving cell according to the judgment result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information.

[0126] Further, the judgment returning module 22 specifically includes:

[0127] The first judgment unit is configured to, if the floor noise and spectral efficiency of the neighboring cell satisfy preset threshold requirements after the terminal adjusts the transmission power by executing the corresponding power control command, judge that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is within an acceptable range.

[0128] The second judgment unit is configured to, if the floor noise and spectral efficiency of the neighboring cell do not satisfy the threshold requirements after the terminal adjusts the transmission power by executing the corresponding power control command, judge that the influence of the terminal executing the corresponding power control command on the floor noise of the neighboring cell is not within an acceptable range.

[0129] Embodiment 5

[0130] Referring to Figure 8 the embodiment provides a floor noise suppression device including a memory 31 and a processor 32, the memory 31 storing a computer program, and the processor 32 being configured to run the computer program to execute the floor noise suppression method in Embodiment 1 or the floor noise suppression method in Embodiment 2.

[0131] The memory 31 is connected with the processor 32, the memory 31 can adopt a flash memory or a read-only memory or other memories, and the processor 32 can adopt a central processing unit or a single-chip microcomputer.

[0132] Embodiment 6:

[0133] The computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the bottom noise suppression method in the above embodiment 1 or embodiment 2.

[0134] The computer readable storage medium includes a volatile or non-volatile, removable or non-removable medium implemented in any method or technology for storing information, such as computer readable instructions, data structures, computer program modules or other data. The computer readable storage medium includes but is not limited to RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, magnetic disc storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer.

[0135] In summary, the method, device and computer readable storage medium for suppressing noise floor provided by the embodiment of the present application first generate a power control command word of a terminal in response to the need to adjust the transmit power of the terminal; if the terminal is in the overlapping coverage area of the serving cell and the neighboring cell, the power control command word is sent to the neighboring cell, so that the neighboring cell determines whether the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to the determination result; then the response information returned by the neighboring cell is received, and it is determined whether to issue the power control command word to the terminal according to the response information. Before the serving cell issues the power control command for adjusting the transmit power of the terminal to the terminal in the overlapping coverage area of the serving cell and the neighboring cell, the power control command is sent to the neighboring cell to evaluate the influence of the terminal executing the power control command on the noise floor of the neighboring cell, and it is determined whether the power control command can be issued to the terminal based on the response information returned by the neighboring cell, thereby avoiding the serving cell from having a great influence on the noise floor of the neighboring cell after adjusting the transmit power of the terminal, and solving the problem that the existing noise floor suppression method does not consider the influence of the transmit power of the terminal under the serving cell on the noise floor of the neighboring cell in a large traffic scenario, resulting in poor noise floor suppression effect.

[0136] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also considered to be within the protection scope of the present application.

Claims

1. A method of noise floor suppression, the method comprising: The method applied to a serving cell comprises: In response to a need to adjust a transmitting power of a terminal, generating a power control command word of the terminal; If the terminal is a terminal in an overlapping coverage area of the serving cell and a neighboring cell, sending the power control command word to the neighboring cell, so that the neighboring cell judges whether an influence of the terminal on a floor noise of the neighboring cell after the terminal executes a corresponding power control command is within an acceptable range according to the power control command word, and returns corresponding response information to the serving cell according to a judgment result; Receiving the response information returned by the neighboring cell, and deciding whether to issue the power control command word to the terminal according to the response information; The generating of the power control command word of the terminal specifically comprises: Obtaining the power control command word according to a block error rate (BLER) required by a corresponding service of the terminal and a signal to interference plus noise ratio (SINR) that can be reached; The deciding whether to issue the power control command word to the terminal according to the response information specifically comprises: In response to the response information indicating that the influence of the terminal on the floor noise of the neighboring cell after the terminal executes the corresponding power control command is within the acceptable range, issuing the power control command word to the terminal to meet the BLER required by the corresponding service of the terminal; In response to the response information indicating that the influence of the terminal on the floor noise of the neighboring cell after the terminal executes the corresponding power control command is not within the acceptable range, not issuing the power control command word to the terminal, and enabling a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism for the terminal to meet the BLER required by the corresponding service of the terminal.

2. The method of claim 1, wherein, Before the sending of the power control command word to the neighboring cell if the terminal is a terminal in the overlapping coverage area of the serving cell and the neighboring cell, the method further comprises: Issuing a measurement configuration for indicating the terminal to measure the serving cell and the neighboring cell to the terminal; Receiving a measurement report reported by the terminal after the terminal measures the serving cell and the neighboring cell according to the measurement configuration; Judging whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal.

3. The method of claim 2, wherein, The judging whether the terminal is a terminal in the overlapping coverage area according to the measurement report reported by the terminal specifically comprises: If a level value of the serving cell and the neighboring cell in the measurement report reported by the terminal is within a preset range, judging that the terminal is a terminal in the overlapping coverage area.

4. A method of noise floor suppression, the method comprising: The method applied to a neighboring cell comprises: Receiving a power control command word sent by a serving cell, the power control command word being generated by the serving cell in response to a need to adjust a transmitting power of a terminal, and being sent after it is judged that the terminal is a terminal in an overlapping coverage area of the serving cell and the neighboring cell; determining, according to the power control command word, whether the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range, and returning corresponding response information to the serving cell according to the determination result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information; the generating of the power control command word of the terminal specifically comprises: obtaining the power control command word according to the block error rate (BLER) required by the corresponding service of the terminal and the signal to interference plus noise ratio (SINR) that can be achieved; the deciding whether to issue the power control command word to the terminal according to the response information specifically comprises: in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range, issuing the power control command word to the terminal to meet the BLER required by the corresponding service of the terminal; in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is not within an acceptable range, not issuing the power control command word to the terminal, and enabling a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism for the terminal to meet the BLER required by the corresponding service of the terminal.

5. The method of claim 4, wherein, the determining, according to the power control command word, whether the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range specifically comprises: if the noise floor and the spectral efficiency of the neighboring cell meet preset threshold requirements after the terminal adjusts the transmission power by executing the corresponding power control command, it is determined that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range; if the noise floor and the spectral efficiency of the neighboring cell do not meet the threshold requirements after the terminal adjusts the transmission power by executing the corresponding power control command, it is determined that the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is not within an acceptable range.

6. A noise floor suppression apparatus, characterized by, The device is arranged in a serving cell, and the device comprises: a generating module configured to generate a power control command word of a terminal in response to a need to adjust the transmission power of the terminal; a sending module connected with the generating module and configured to, if the terminal is a terminal in an overlapping coverage area of the serving cell and a neighboring cell, send the power control command word to the neighboring cell, so that the neighboring cell determines, according to the power control command word, whether the influence of the terminal executing the corresponding power control command on the noise floor of the neighboring cell is within an acceptable range, and returns corresponding response information to the serving cell according to the determination result; a first receiving module connected with the sending module and configured to receive the response information returned by the neighboring cell, and decide whether to issue the power control command word to the terminal according to the response information; the generating module is specifically configured to: obtain the power control command word according to the block error rate (BLER) required by the corresponding service of the terminal and the signal to interference plus noise ratio (SINR) that can be achieved; the first receiving module specifically comprises: The issuing unit is configured to, in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the bottom noise of the neighboring cell is within an acceptable range, issue the power control command word to the terminal to meet the BLER required by the corresponding service of the terminal. The non-issuing unit is configured to, in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the bottom noise of the neighboring cell is not within an acceptable range, not issue the power control command word to the terminal, and enable a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism for the terminal to meet the BLER required by the corresponding service of the terminal.

7. A noise floor suppression apparatus, characterized by, The device is arranged in a neighboring cell, and the device comprises: The second receiving module is configured to receive a power control command word sent by a serving cell, the power control command word being generated by the serving cell in response to a need to adjust the transmit power of a terminal, and sent after it is judged that the terminal is in an overlapping coverage area of the serving cell and the neighboring cell. The judging returning module, connected with the second receiving module, is configured to judge, according to the power control command word, whether the influence of the terminal executing the corresponding power control command on the bottom noise of the neighboring cell is within an acceptable range, and return corresponding response information to the serving cell according to the judgment result, so that the serving cell decides whether to issue the power control command word to the terminal according to the response information. The generating the power control command word of the terminal specifically comprises: obtaining the power control command word according to the block error rate (BLER) required by the corresponding service of the terminal and the signal to interference plus noise ratio (SINR) that can be achieved; the deciding whether to issue the power control command word to the terminal according to the response information specifically comprises: in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the bottom noise of the neighboring cell is within an acceptable range, issuing the power control command word to the terminal to meet the BLER required by the corresponding service of the terminal; in response to the response information indicating that the influence of the terminal executing the corresponding power control command on the bottom noise of the neighboring cell is not within an acceptable range, not issuing the power control command word to the terminal, and enabling a resource block (RB) allocation mechanism and / or an adaptive modulation and coding (AMC) mechanism for the terminal to meet the BLER required by the corresponding service of the terminal.

8. A noise floor suppression apparatus, characterized by, The computer readable storage medium has a computer program stored thereon, and the computer program is executed by the processor to implement the bottom noise suppression method according to any one of claims 1-3 or the bottom noise suppression method according to any one of claims 4-5.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium has a computer program stored thereon, and the computer program is executed by the processor to implement the bottom noise suppression method according to any one of claims 1-3 or the bottom noise suppression method according to any one of claims 4-5.

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