A method, apparatus and storage medium for determining an MCS

Abstract

The application provides an MCS determination method, device and storage medium, relates to the technical field of communication, and is used for solving the technical problem that the existing method for determining the MCS value has low accuracy. The MCS determination method comprises the following steps: obtaining target data of a neighboring cell; the neighboring cell is a cell adjacent to a target cell; the target data comprises a signal strength of a channel state information reference signal and / or a physical resource block utilization rate; obtaining an initial MCS of a target terminal in the target cell; and determining a target MCS of the target terminal according to the target data and the initial MCS.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and in particular to a MCS determination method and device and storage medium. BACKGROUND

[0002] At present, in a new radio (NR) communication system, the modulation and coding strategy (MCS) of a downlink channel service adopts an adaptive modulation and coding (AMC) technology to determine the MCS value used by a scheduled user equipment (UE), specifically:

[0003] The UE needs to measure the downlink channel quality (CQI) through a channel state information reference signal (CSI-RS) and report the measured CQI to a base station (gNodeB). The base station determines the MCS value used by the UE by looking up a table according to the CQI reported by the UE.

[0004] However, in a dense urban area, due to the large interference in the overlapping area of the same frequency neighbor cell, the existing method for determining the MCS value has low accuracy, thereby affecting the performance of the communication system. SUMMARY

[0005] The present application provides a MCS determination method and device and storage medium to solve the technical problem of low accuracy of the existing method for determining the MCS value.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, a MCS determination method is provided, comprising: obtaining target data of a neighbor cell; the neighbor cell is a cell adjacent to a target cell; the target data includes: a signal strength of a channel state information reference signal, and / or a physical resource block utilization rate; obtaining an initial MCS of a target terminal in the target cell; and determining a target MCS of the target terminal according to the target data and the initial MCS.

[0008] Optionally, the target MCS of the target terminal is determined according to the target data and the initial MCS, including: determining a product of a signal strength of a synchronization signal of the target cell and a preset coefficient, and when the signal strength of the channel state information reference signal of the adjacent cell is greater than the product, adjusting the initial MCS by a first preset value to obtain the target MCS; and / or when the physical resource block utilization of the adjacent cell is greater than a first preset value, adjusting the initial MCS by a second preset value to obtain the target MCS.

[0009] Optionally, when the number of the adjacent cells is multiple, the target data of the adjacent cells is obtained, including: determining, from multiple signal strengths of multiple channel state information reference signals corresponding to the multiple adjacent cells, a signal strength of a channel state information reference signal greater than a first preset signal strength as the target data; and / or determining, from multiple physical resource block utilizations corresponding to the multiple adjacent cells, a physical resource block utilization greater than a second preset value as the target data.

[0010] Optionally, the MCS determination method further includes: obtaining, in a preset time period, a signal strength of a synchronization signal of each cell in multiple cells reporting a handover event and having a distance less than a preset distance from the target cell; and determining a cell having a signal strength of the synchronization signal greater than a second preset signal strength as the adjacent cell.

[0011] Optionally, the MCS determination method further includes: obtaining a first terminal in the target cell reporting a handover event; obtaining a signal strength of a channel state information reference signal of another cell received by the first terminal; when the signal strength of the channel state information reference signal of the another cell received by the first terminal is greater than a third preset signal strength, and a cell corresponding to the channel state information reference signal greater than the third preset signal strength is the adjacent cell, determining the first terminal as the target terminal.

[0012] In a second aspect, an MCS determination apparatus is provided, including: an obtaining unit and a processing unit; the obtaining unit is configured to obtain target data of adjacent cells; the adjacent cells are cells adjacent to a target cell; the target data includes a signal strength of a channel state information reference signal and / or a physical resource block utilization; the obtaining unit is further configured to obtain an initial MCS of a target terminal in the target cell; and the processing unit is configured to determine a target MCS of the target terminal according to the target data and the initial MCS.

[0013] Optionally, the processing unit is specifically configured to: determine a product of a signal strength of a synchronization signal of the target cell and a preset coefficient, and when the signal strength of the channel state information reference signal of the adjacent cell is greater than the product, adjust the initial MCS by a first preset value to obtain the target MCS; and / or when the physical resource block utilization of the adjacent cell is greater than a first preset value, adjust the initial MCS by a second preset value to obtain the target MCS.

[0014] Optionally, when the number of the adjacent cells is multiple, the obtaining unit is specifically configured to: determine, from the signal strengths of the multiple CSI-RSs corresponding to the multiple adjacent cells, the signal strength of the CSI-RS greater than the first preset signal strength as the target data; and / or determine, from the multiple PRB utilizations corresponding to the multiple adjacent cells, the PRB utilization greater than the second preset value as the target data.

[0015] Optionally, the obtaining unit is further configured to obtain the signal strength of the synchronization signal of each cell in the multiple cells reporting the handover event and having a distance less than the preset distance from the target cell in the preset time period; and the processing unit is further configured to determine, as the adjacent cell, the cell having the signal strength of the synchronization signal greater than the second preset signal strength.

[0016] Optionally, the obtaining unit is further configured to obtain the first terminal reporting the handover event in the target cell; the obtaining unit is further configured to obtain the signal strength of the CSI-RS of the other cell received by the first terminal; and the processing unit is further configured to determine, as the target terminal, the first terminal when the signal strength of the CSI-RS of the other cell received by the first terminal is greater than the third preset signal strength, and the cell corresponding to the CSI-RS greater than the third preset signal strength is the adjacent cell.

[0017] In a third aspect, a MCS determination apparatus is provided, including a memory and a processor; the memory is configured to store computer-executed instructions; the processor is connected to the memory through a bus; when the MCS determination apparatus is running, the processor executes the computer-executed instructions stored in the memory, so that the MCS determination apparatus executes the MCS determination method in the first aspect.

[0018] The MCS determination apparatus can be a network device, or a part of the network device, for example, a chip system in the network device. The chip system is configured to support the network device to implement the functions involved in the first aspect and any possible implementation manner thereof, for example, obtaining, determining, and sending the data and / or information involved in the MCS determination method. The chip system includes a chip, and can also include other discrete devices or circuit structures.

[0019] In a fourth aspect, a computer-readable storage medium is provided, including computer-executed instructions; when the computer-executed instructions are running on a computer, the computer is caused to execute the MCS determination method in the first aspect.

[0020] In a fifth aspect, a computer program product is provided, which includes computer instructions, when the computer instructions are executed on the MCS determination apparatus, causing the MCS determination apparatus to perform the MCS determination method according to the first aspect.

[0021] It should be noted that the computer instructions can be stored on a computer readable storage medium in whole or in part. The computer readable storage medium can be packaged with the processor of the MCS determination apparatus or packaged separately from the processor of the MCS determination apparatus, and the embodiments of the present application do not limit this.

[0022] The second aspect, the third aspect, the fourth aspect and the fifth aspect of the present application can refer to the detailed description of the first aspect.

[0023] In the embodiments of the present application, the name of the MCS determination apparatus does not constitute a limitation on the devices or functional modules themselves, and in actual implementation, these devices or functional modules can appear with other names. For example, the receiving unit can also be referred to as a receiving module, a receiver, etc. As long as the functions of each device or functional module are similar to those of the present application, they belong to the scope of the claims of the present application and equivalent technologies.

[0024] The technical solutions provided by the present application at least have the following beneficial effects:

[0025] Based on any of the above aspects, the present application provides an MCS determination method, which can obtain target data of a neighboring cell. The neighboring cell is a cell adjacent to a target cell, and the target data includes: a signal strength of a channel state information reference signal, and / or a physical resource block utilization rate. Then, an initial MCS of a target terminal in the target cell can be obtained, and a target MCS of the target terminal can be determined according to the target data and the initial MCS.

[0026] As can be seen from the above, the MCS determination method provided by the embodiments of the present application can consider the influence of the neighboring cell on the target terminal by obtaining the target data of the neighboring cell when determining the target MCS of the target terminal, and then accurately determine the target MCS of the target terminal according to the target data and the initial MCS, thereby avoiding the technical problem of low accuracy of the existing method for determining the MCS value when the large overlapping area interference of the same frequency neighboring area affects the target terminal.

[0027] The beneficial effects of the first aspect, the second aspect, the third aspect, the fourth aspect and the fifth aspect of the present application can refer to the analysis of the above beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 An application scenario diagram of the MCS determination method provided by the embodiments of the present application is shown.

[0029] Figure 2 A hardware structure schematic of an MCS determination device provided for an embodiment of the present application Figure 1 ;

[0030] Figure 3 A hardware structure schematic of an MCS determination device provided for an embodiment of the present application Figure 2 ;

[0031] Figure 4 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 1 ;

[0032] Figure 2 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 6 ;

[0033] Figure 3 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 7 ;

[0034] Figure 4 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 8 ;

[0035] Figure 5 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 9 ;

[0036] Figure 6 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 10 ;

[0037] Figure 7 A flow schematic of an MCS determination method provided for an embodiment of the present application Figure 11 ;

[0038] Figure 1 A structure schematic of an MCS determination device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present application.

[0040] It should be noted that in the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0041] In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same or similar items with basically the same function and role. Those skilled in the art can understand that the words "first", "second", etc. are not intended to limit the number and execution order.

[0042] As described in the background, in dense urban areas, due to the large interference of the overlapping area of the same frequency neighbor cell, the existing method for determining the MCS value has low accuracy, thereby affecting the performance of the communication system.

[0043] To solve the above problems, the present application provides a MCS determination method, which can obtain target data of a neighbor cell. The neighbor cell is a cell adjacent to a target cell, and the target data includes: a signal strength of a channel state information reference signal, and / or a physical resource block utilization rate. Then, an initial MCS of a target terminal in the target cell can be obtained, and a target MCS of the target terminal can be determined according to the target data and the initial MCS.

[0044] As can be seen from the above, the MCS determination method provided by the embodiments of the present application can consider the influence of the neighbor cell on the target terminal by obtaining the target data of the neighbor cell when determining the target MCS of the target terminal, and then accurately determine the target MCS of the target terminal according to the target data and the initial MCS, thereby avoiding the technical problem of low accuracy of the existing method for determining the MCS value when the same frequency neighbor cell with large overlapping area interference affects the target terminal.

[0045] The MCS determination method is applicable to a MCS determination system. Figure 1 A structure of the MCS determination system is shown. As shown in Figure 1 The MCS determination system includes: a target base station 101, a neighbor base station 102, and a terminal 103.

[0046] The terminal 103 belongs to a target cell in the coverage range of the target base station 101, the neighbor base station 102 is a base station adjacent to the target base station 101, and the cell covered by the neighbor base station 102 is a cell adjacent to the target cell.

[0047] When there are multiple cells in the coverage range of the target base station 101, the multiple cells can also include a cell adjacent to the target cell.

[0048] In practical application, the target cell in the coverage of the target base station 101 can include any number of terminals. For the convenience of understanding, Figure 2 Taking the target cell in the coverage of the target base station 101 including one terminal 103 as an example for description.

[0049] When the adjacent cell and the target cell exist in the overlapping area, the communication signal of the adjacent cell can interfere with the terminal 103. In this case, if the MCS value of the terminal 103 is determined according to the general method of determining the MCS value, the accuracy is low, thereby affecting the performance of the communication system.

[0050] In the present application, when the target base station 101 determines the target MCS of the terminal 103, the adjacent cell interference power and the adjacent cell load are added to the MCS calculation process, and the interference of the adjacent cell on the determination of the MCS value is fully considered, thereby improving the accuracy of the determination of the MCS value.

[0051] Optionally, the target base station 101 and the adjacent base station 102 described above can be a base station or a base station controller and the like in wireless communication. In the embodiments of the present application, the base station can be a base station (BTS) in the global system for mobile communication (GSM), code division multiple access (CDMA), a base station (node B) in wideband code division multiple access (WCDMA), a base station (eNB) in the internet of things (IoT) or narrowband-internet of things (NB-IoT), a base station in the future 5G mobile communication network or the future evolved public land mobile network (PLMN), and the embodiments of the present application do not make any limitation thereto.

[0052] Optionally, the terminal 103 can be a device that provides voice and / or data connectivity to a user, a hand-held device having a wireless connection capability, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile telephone (or "cell" phone) or a computer with a mobile termination, which communicates voice and / or data with a radio access network. The wireless terminal can be portable, pocket, hand-held, computer-embedded, or car-mounted mobile devices, which communicate voice and / or data with a radio access network, such as a mobile phone, a tablet computer, a laptop computer, a netbook, a personal digital assistant (PDA).

[0053] The basic hardware structure of the target base station 101 includes Figure 3 or Figure 2 the elements included in the MCS determination apparatus. Next, the hardware structure of the target base station 101 will be introduced by taking the MCS determination apparatus shown in Figure 3 and Figure 2 as an example.

[0054] As shown in Figure 2 , a hardware structure schematic diagram of the MCS determination apparatus provided by the embodiment of the present application is shown. The MCS determination apparatus includes a processor 21, a memory 22, a communication interface 23, and a bus 24. The processor 21, the memory 22, and the communication interface 23 can be connected through the bus 24.

[0055] The processor 21 is the control center of the MCS determination apparatus, which can be one processor or a general term of multiple processing elements. For example, the processor 21 can be a general central processing unit (CPU), or other general-purpose processors, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0056] As an embodiment, the processor 21 can include one or more CPUs, such as the CPU 0 and the CPU 1 shown in Figure 2 .

[0057] The memory 22 can be a read-only memory (ROM) or other type of static network access device that can store static information and instructions, a random access memory (RAM) or other type of dynamic network access device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic storage medium or other magnetic network access device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

[0058] In a possible implementation, the memory 22 can exist independently of the processor 21, and the memory 22 can be connected to the processor 21 through the bus 24 for storing instructions or program code. When the processor 21 invokes and executes the instructions or program code stored in the memory 22, the MCS determination method provided in the embodiments described below can be implemented.

[0059] In the embodiments of the present application, the software program stored in the memory 22 is different for the target base station 101, and therefore the functions implemented by the target base station 101 are different. The functions performed by each device will be described in conjunction with the flowcharts below.

[0060] In another possible implementation, the memory 22 can also be integrated with the processor 21.

[0061] The communication interface 23 is used for connecting the MCS determination apparatus to other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN), etc. The communication interface 23 can include a receiving unit for receiving data and a sending unit for sending data.

[0062] The bus 24 can be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0063] Figure 3 Another hardware structure of the MCS determination apparatus in the embodiments of the present application is shown. As shown in Figure 2 the MCS determination apparatus can include a processor 31 and a communication interface 32. The processor 31 is coupled with the communication interface 32.

[0064] The functions of the processor 31 can refer to the description of the processor 21 above. In addition, the processor 31 also has a storage function, which can function as the memory 22 above.

[0065] The communication interface 32 is configured to provide data for the processor 31. The communication interface 32 can be an internal interface of the MCS determination apparatus, or an external interface of the MCS determination apparatus (equivalent to the communication interface 23).

[0066] It should be noted that the structure shown in Figure 3 (or Figure 2 ) does not constitute a limitation on the MCS determination apparatus. In addition to the components shown in Figure 3 (or Figure 1 ), the MCS determination apparatus can include more or fewer components than shown, or combine certain components, or different component arrangements.

[0067] The MCS determination method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0068] The MCS determination method provided by the embodiments of the present application is applied to the target base station 101 in the MCS determination system shown in Figure 4 , as shown in Figure 4 , the MCS determination method provided by the embodiments of the present application includes:

[0069] S401, the target base station acquires target data of a neighboring cell.

[0070] The neighboring cell is a cell adjacent to the target cell. The target data includes: signal strength of channel state information reference signal, and / or physical resource block utilization rate.

[0071] Optionally, when the target base station covers multiple cells, the multiple cells can include the target cell and the cell adjacent to the target cell. In this case, since the neighboring cell is a cell within the coverage of the target base station, the target base station can directly acquire the target data of the neighboring cell.

[0072] Optionally, when the neighboring cell is a cell within the coverage of a neighboring base station, the target base station can acquire the target data of the neighboring cell from the neighboring base station based on the Xn interface.

[0073] The Xn interface is the network interface between gNodeBs. Information exchange between base stations, including neighbor cell information, is achieved through the Xn interface.

[0074] S402. The target base station obtains the initial MCS of the target terminal in the target cell.

[0075] Optionally, the initial MCS of the target terminal may be pre-set according to the service requirements of the target terminal, or it may be determined by the target base station in the previous cycle. This application embodiment does not limit this.

[0076] S403. The target base station determines the target MCS of the target terminal based on the target data and the initial MCS.

[0077] As can be seen from the above, when determining the target MCS of the target data, the target base station incorporates the interference power and load of neighboring cells into the MCS calculation process, fully considering the factors of neighboring cell interference in determining the MCS value, thus improving the accuracy of determining the MCS value.

[0078] In one feasible way, combining Figure 5 ,like Figure 4 As shown, the method by which the target base station determines the target MCS of the target terminal based on the target data and the initial MCS specifically includes:

[0079] S501. The target base station determines the product of the signal strength of the synchronization signal of the target cell and a preset coefficient. When the signal strength of the channel state information reference signal of the adjacent cell is greater than the product, the initial MCS is lowered by a first preset value to obtain the target MCS.

[0080] Specifically, when the signal strength of the channel state information reference signal of a neighboring cell is greater than the product, it indicates that the load of the neighboring cell is high, and the interference of the neighboring cell to the target cell is correspondingly high. In this case, in order not to affect the communication performance of the target terminal, the target base station can lower the initial MCS of the target terminal by a first preset value to obtain the target MCS.

[0081] Optionally, the target base station can calculate the Block Error Ratio (BLER) based on the initial MCS. The BLER reflects the degree of conformity between the initial MCS and the actual channel quality. In this case, during the MCS value adjustment process, the target base station can obtain the MCS value adjustment amount ΔMCS, i.e., the first preset value, based on the BLER.

[0082] In one feasible way, combining Figure 6 ,like Figure 4 As shown, the method by which the target base station determines the target MCS of the target terminal based on the target data and the initial MCS specifically includes:

[0083] S601. When the physical resource block utilization rate of a neighboring cell is greater than the first preset value, the target base station will lower the initial MCS by the second preset value to obtain the target MCS.

[0084] Specifically, when the physical resource block utilization rate of a neighboring cell exceeds a first preset value, it indicates that the load of the neighboring cell is high, and the interference from the neighboring cell to the target cell is correspondingly high. In this case, in order not to affect the communication performance of the target terminal, the target base station can lower the initial MCS of the target terminal by a second preset value to obtain the target MCS.

[0085] Optionally, during the MCS value adjustment process, the target base station can obtain the MCS value adjustment amount ΔMCS, i.e., the second preset value, based on BLER.

[0086] Optionally, the second preset value and the first preset value can be the same value or different values.

[0087] In one feasible way, combining Figure 7 ,like Figure 4 As shown, when there are multiple neighboring cells, the method for the target base station to obtain target data from neighboring cells specifically includes:

[0088] S701. The target base station determines the signal strength of the channel state information reference signal that is greater than the first preset signal strength from among the signal strengths of multiple channel state information reference signals that correspond one-to-one with multiple adjacent cells as the target data.

[0089] Specifically, interference to the target cell will only occur when the signal strength of the channel state information reference signal of the adjacent cell is greater than the first preset signal strength, and this will be of reference value when determining the target MCS.

[0090] Correspondingly, when the signal strength of the channel state information reference signal of the neighboring cell is less than or equal to the first preset signal strength, it will not interfere with the target cell, or the interference with the target cell will be low. Therefore, when determining the target MCS, these channel state information reference signals with low signal strength have no reference value.

[0091] Therefore, the target base station can determine the signal strength of the channel state information reference signal that is greater than the first preset signal strength from among the signal strengths of multiple channel state information reference signals that correspond one-to-one with multiple adjacent cells as the target data.

[0092] In one feasible way, combining Figure 8 ,like Figure 4 As shown, when there are multiple neighboring cells, the method for the target base station to obtain target data from neighboring cells specifically includes:

[0093] S801, the target base station determines, as target data, a physical resource block utilization rate greater than a second preset value from among a plurality of physical resource block utilization rates corresponding to a plurality of neighboring cells.

[0094] Specifically, when the physical resource block utilization rate of a neighboring cell is greater than the second preset value, the neighboring cell will interfere with the target cell, and thus has reference significance in subsequent determination of the target MCS.

[0095] Correspondingly, when the physical resource block utilization rate of a neighboring cell is less than or equal to the second preset value, the neighboring cell will not interfere with the target cell, or will have low interference with the target cell, and thus the physical resource block utilization rates with smaller physical resource block utilization rates have no reference significance in determination of the target MCS.

[0096] Therefore, the target base station can determine, as target data, a physical resource block utilization rate greater than a second preset value from among a plurality of physical resource block utilization rates corresponding to a plurality of neighboring cells.

[0097] In an implementable manner, in combination with Figure 9 As shown in the first aspect, the MCS determination method further includes: Figure 9

[0098] S901, the target base station acquires a signal strength of a synchronization signal of each cell from among a plurality of cells that report a handover event and are less than a preset distance from the target cell in a preset time period.

[0099] Optionally, the handover event can be an A3 event.

[0100] Specifically, when a terminal in a cell reports an A3 event to the target base station, it indicates that the terminal has switched to the cell. When the distance between the cell and the target cell is less than a preset distance, the target base station can determine that the cell is a candidate neighboring cell.

[0101] S902, the target base station determines, as a neighboring cell, a cell with a signal strength of a synchronization signal greater than a second preset signal strength.

[0102] Specifically, when the signal strength of the synchronization signal of the candidate neighboring cell is greater than the second preset signal strength, the candidate neighboring cell will interfere with the target cell, and thus has reference significance in subsequent determination of the target MCS.

[0103] Correspondingly, when the signal strength of the synchronization signal of the candidate neighboring cell is less than or equal to the second preset signal strength, the candidate neighboring cell will not interfere with the target cell, or will have low interference with the target cell, and thus the cell has no reference significance in determination of the target MCS.

[0104] ​Therefore, the target base station can determine the cell with the signal strength of the synchronization signal greater than the second preset signal strength as the neighboring cell.

[0105] In an implementable manner, in combination with Figure 10 As Figure 11 illustrated, the MCS determination method further includes:

[0106] S1001, the target base station acquires a first terminal in the target cell reporting a handover event.

[0107] Optionally, the handover event can be an A3 event.

[0108] Specifically, when a certain terminal reports an A3 event to the target base station, it indicates that the terminal is in a target cell and a neighboring cell in a co-coverage area (only in the co-coverage area can the cell be switched).

[0109] S1002, the target base station acquires the signal strength of the channel state information reference signal of other cells received by the first terminal.

[0110] S1003, when the signal strength of the channel state information reference signal of other cells received by the first terminal is greater than a third preset signal strength, and the cell corresponding to the channel state information reference signal greater than the third preset signal strength is a neighboring cell, the target base station determines the first terminal as a target terminal.

[0111] Specifically, when the signal strength of the channel state information reference signal of other cells received by the first terminal is greater than a third preset signal strength, and the cell corresponding to the channel state information reference signal greater than the third preset signal strength is a neighboring cell, it is meaningful to determine the target MCS of the terminal subsequently. Therefore, when the signal strength of the channel state information reference signal of other cells received by the first terminal is greater than a third preset signal strength, and the cell corresponding to the channel state information reference signal greater than the third preset signal strength is a neighboring cell, the target base station determines the first terminal as a target terminal.

[0112] In combination with the above various embodiments, the present application will be described in detail below in combination with specific examples. The MCS determination method provided by the present application includes:

[0113] S1, the target base station determines a neighboring cell set of the target cell.

[0114] The neighboring cell set refers to the strongest neighboring cell set interfering with the target cell. The target base station can determine the neighboring cell set by counting the A3 event reporting of the neighboring cell for a period of time.

[0115] Exemplarily, the target base station can set a timer Tperiod as 3S, count the neighboring cells with A3 event reporting in 3S, and define the 12 neighboring cells with the strongest SSB RSRP value reported by the neighboring cells as the neighbor set N of the cell.

[0116] S2, the target base station acquires target data of the neighboring cell.

[0117] Specifically, by constructing a new function of Xn port between the neighboring cells in advance, the target base station can acquire the strongest beam CSI-RS RSRP and PRB utilization of each neighboring cell in the neighbor set of the target cell.

[0118] Exemplarily, the target base station can trigger the construction of a new information element with the neighbor set Xn port, add an interface message, and on the basis of the original Xn interface, exchange the strongest beam CSI-RS RSRP and PRB utilization of the neighboring cell information to the target cell, which are respectively defined as RSRP1, RSRP2, …, RSRP12; PRB1, PRB2, …, PRB12.

[0119] The interference of the neighboring cell corresponding to the target cell is defined as RSRPm=MAX{RSRP1, RSRP2, …, RSRP12}; and the corresponding neighboring cell load PRBm=MAX{PRB1, PRB2, …, PRB12}.

[0120] S3, the target base station determines the target UE.

[0121] The target UE refers to the UE with A3 event reporting, and the neighboring cell with the maximum CSI-RS RSRP received by the target UE is in the neighbor set of the target cell.

[0122] Exemplarily, the target base station selects the UE with A3 event reporting, and the neighboring cell with the maximum CSI-RS RSRP received is in the neighbor set N of the target cell, which is defined as UE1, UE2, …UEn, and the target UE needs to adjust the MCS algorithm.

[0123] S4, the target base station adjusts the initial MCS of the target UE according to the interference and load of the neighboring cell to obtain the target MCS.

[0124] Exemplarily, for UEn in the process of calculating the target MCS, the target base station can count the BLER according to the initial MCS. The BLER reflects the degree of coincidence between the last MCS value and the actual channel quality.

[0125] Then, the target base station can adjust the MCS value according to the BLER value to obtain the MCS value adjustment amount AMCS.

[0126] During the effective time of timer T, the target base station corrects ΔMCS based on RSRPm and PRBm in S2, specifically as follows:

[0127] If RSRPm > 0.9 * target cell access level or PRBm > 90%, adjust the MCS level down by one step in ΔMCS calculation.

[0128] If RSRPm < 1.1 * target cell access level or PRBm < 50%, increase the MCS level by one step in ΔMCS calculation.

[0129] In other cases, ΔMCS remains unchanged.

[0130] S5. The target base station transmits data using a more precise target MCS based on the target UE's IBLER target value, thereby improving the system's spectrum efficiency.

[0131] The foregoing mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, it includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0132] This application embodiment can divide the MCS determining device into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0133] like Figure 4 - Figure 10 The diagram shown is a structural schematic of an MCS determination device provided in an embodiment of this application. This MCS determination device can be used to perform... Figure 11 The method for determining the MCS is shown. ​ The MCS determination device shown includes: an acquisition unit 1101 and a processing unit 1102;

[0134] The acquisition unit 1101 is configured to acquire target data of a neighboring cell; the neighboring cell is a cell adjacent to a target cell; the target data comprises a signal strength of a channel state information reference signal and / or a physical resource block utilization rate;

[0135] The acquisition unit 1101 is further configured to acquire an initial MCS of a target terminal in the target cell.

[0136] The processing unit 1102 is configured to determine a target MCS of the target terminal according to the target data and the initial MCS.

[0137] Optionally, the processing unit 1102 is specifically configured to:

[0138] determine a product of the signal strength of the synchronization signal of the target cell and a preset coefficient, and when the signal strength of the channel state information reference signal of the neighboring cell is greater than the product, lower the initial MCS by a first preset value to obtain the target MCS;

[0139] and / or, when the physical resource block utilization rate of the neighboring cell is greater than a first preset value, lower the initial MCS by a second preset value to obtain the target MCS.

[0140] Optionally, when the number of the neighboring cells is a plurality, the acquisition unit 1101 is specifically configured to:

[0141] determine, from a plurality of signal strengths of the channel state information reference signals corresponding to the plurality of neighboring cells one by one, a signal strength of a channel state information reference signal greater than a first preset signal strength as the target data;

[0142] and / or, determine, from a plurality of physical resource block utilization rates corresponding to the plurality of neighboring cells one by one, a physical resource block utilization rate greater than a second preset value as the target data.

[0143] Optionally, the acquisition unit 1101 is further configured to acquire, in a preset time period, a signal strength of a synchronization signal of each cell of a plurality of cells reporting a handover event and having a distance less than a preset distance from the target cell.

[0144] The processing unit 1102 is further configured to determine, as the neighboring cell, a cell having a signal strength of the synchronization signal greater than a second preset signal strength.

[0145] Optionally, the acquisition unit 1101 is further configured to acquire a first terminal in the target cell reporting the handover event.

[0146] The acquisition unit 1101 is further configured to acquire a signal strength of a channel state information reference signal of another cell received by the first terminal.

[0147] The processing unit 1102 is further configured to determine the first terminal as the target terminal when the signal strength of the channel state information reference signal of the other cell received by the first terminal is greater than a third preset signal strength, and the cell corresponding to the channel state information reference signal greater than the third preset signal strength is the adjacent cell.

[0148] The embodiment of the present application further provides a computer readable storage medium, which comprises computer execution instructions. When the computer execution instructions run on a computer, the computer is caused to execute the MCS determination method provided by the above embodiment.

[0149] The embodiment of the present application further provides a computer program, which can be directly loaded into a memory and contains software codes. The computer program is loaded and executed by a computer, and can realize the MCS determination method provided by the above embodiment.

[0150] Those skilled in the art can realize that, in one or more examples described above, the functions described in the present application can be realized by hardware, software, firmware or any combination thereof. When realized by software, the functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes a computer readable storage medium and a communication medium, wherein the communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0151] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration. In actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0152] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented by other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the modules or units is merely a logical function division, and actual implementation can have another division manner. For example, multiple units or components can be combined or integrated into another apparatus, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, which can be electrical, mechanical or other forms. The units described as separate components can be or can not be physically separated, and the components shown as units can be one physical unit or multiple physical units, that is, can be located in one place or can be distributed to multiple different places. Some or all units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0153] In addition, each functional unit in the embodiments of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or say the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to make an apparatus (which can be a single chip, a chip, etc.) or a processor execute all or part of the steps of the method described in the embodiments of the present application. The storage medium mentioned above includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various program code storage media.

[0154] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for MCS determination, the method comprising: The method comprises: obtaining target data of a neighboring cell from a neighboring base station based on an Xn interface; the neighboring cell is a cell adjacent to a target cell; the target data comprises: a signal strength of a channel state information reference signal, and / or a physical resource block utilization rate; obtaining an initial MCS of a target terminal in the target cell; the target terminal is a terminal reporting an A3 event, a signal strength of a channel state information reference signal received by the target terminal from another cell is greater than a third preset signal strength, and a cell corresponding to the channel state information reference signal greater than the third preset signal strength is the neighboring cell; determining a product of a signal strength of a synchronization signal of the target cell and a preset coefficient, and when the signal strength of the channel state information reference signal of the neighboring cell is greater than the product, adjusting the initial MCS by a first preset value to obtain a target MCS of the target terminal; and / or when the physical resource block utilization rate of the neighboring cell is greater than a first preset value, adjusting the initial MCS by a second preset value to obtain the target MCS. When the number of the neighboring cells is multiple, the obtaining of the target data of the neighboring cell comprises:

2. The MCS determination method of claim 1, wherein, determining, as the target data, a signal strength of a channel state information reference signal greater than a first preset signal strength from multiple signal strengths of multiple channel state information reference signals corresponding to the multiple neighboring cells one by one; and / or determining, as the target data, a physical resource block utilization rate greater than a second preset value from multiple physical resource block utilization rates corresponding to the multiple neighboring cells one by one. The method further comprises: obtaining a signal strength of a synchronization signal of each cell from multiple cells reporting a handover event and having a distance less than a preset distance from the target cell within a preset time period; 3. The MCS determination method of claim 1 or 2, wherein, determining, as the neighboring cell, a cell having a signal strength of a synchronization signal greater than a second preset signal strength. The method comprises: an obtaining unit and a processing unit; 4. An MCS determination apparatus, comprising: the obtaining unit is configured to obtain target data of a neighboring cell from a neighboring base station based on an Xn interface; the neighboring cell is a cell adjacent to a target cell; the target data comprises: a signal strength of a channel state information reference signal, and / or a physical resource block utilization rate; the obtaining unit is further configured to obtain an initial MCS of a target terminal in the target cell; the target terminal is a terminal reporting an A3 event, a signal strength of a channel state information reference signal received by the target terminal from another cell is greater than a third preset signal strength, and a cell corresponding to the channel state information reference signal greater than the third preset signal strength is the neighboring cell; the processing unit is configured to determine a product of a signal strength of a synchronization signal of the target cell and a preset coefficient, and when the signal strength of the channel state information reference signal of the neighboring cell is greater than the product, adjust the initial MCS by a first preset value to obtain a target MCS; and / or when the physical resource block utilization rate of the neighboring cell is greater than a first preset value, adjust the initial MCS by a second preset value to obtain the target MCS. ​ ​ 5. The MCS determination apparatus of claim 4, wherein, When the number of the adjacent cells is multiple, the acquisition unit is specifically used for: determining, from multiple channel state information reference signal signal strengths corresponding to the multiple adjacent cells one by one, a channel state information reference signal signal strength greater than a first preset signal strength as the target data; and / or determining, from multiple physical resource block utilization rates corresponding to the multiple adjacent cells one by one, a physical resource block utilization rate greater than a second preset value as the target data.

6. The MCS determination apparatus of claim 4 or 5, wherein the acquisition unit is further configured to acquire, in a preset time period, a signal strength of a synchronization signal of each cell of multiple cells that report a handover event and have a distance less than a preset distance from the target cell; and the processing unit is further configured to determine, as the adjacent cell, a cell with a signal strength of the synchronization signal greater than a second preset signal strength. The acquisition unit is further configured to acquire, in a preset time period, a signal strength of a synchronization signal of each cell of multiple cells that report a handover event and have a distance less than a preset distance from the target cell; and the processing unit is further configured to determine, as the adjacent cell, a cell with a signal strength of the synchronization signal greater than a second preset signal strength. The MCS determination apparatus comprises a memory and a processor; the memory is configured to store computer execution instructions; the processor is connected to the memory through a bus; when the MCS determination apparatus is running, the processor executes the computer execution instructions stored in the memory, so that the MCS determination apparatus executes the MCS determination method of any one of claims 1-3.

7. An MCS determination device, characterized in that, The computer readable storage medium comprises computer execution instructions; when the computer execution instructions are running on a computer, the computer executes the MCS determination method of any one of claims 1-3.

8. A computer-readable storage medium, characterized in that, ​

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