Neighborhood selection method and system

Abstract

The embodiment of the present application discloses a neighboring cell selection method and system, which includes sending a historical switching list containing respective measurement control information to each user device; calculating the weighted level value of each beam in each neighboring cell of each user device; calculating the weight of the number of effective beams in each neighboring cell of each user device; selecting a target neighboring cell from all neighboring cells of each user device; and selecting a target beam from all effective beams in the target neighboring cell of each user device. The technical solution disclosed in the present application can select a better switching target neighboring cell, can select a more stable target beam, and can obtain the required information without hardware modification, and the implementation process is simple.

Description

[Technical field]

[0001] The present application relates to the field of wireless communication technology, and in particular to a neighbor cell selection method and system. [Background technology]

[0002] Beamforming technology is a technology that adjusts the amplitude and phase of multiple antennas to give antenna radiation patterns a specific shape and direction, so that the wireless signal energy is concentrated on a narrower beam to enhance coverage and reduce interference. Beamforming is an important part of 5G NR (5G New RAN, 5G wireless network), and will become particularly important with the further application of sub 6G (referring to the 5G frequency band, the operating frequency is 450MHz-6000MHz below 6G frequency band) and millimeter wave band in the future.

[0003] NR (New RAN, wireless network) operates in the medium and high frequency bands, with large path loss and poor coverage. NR uses beams instead of sectors to enhance coverage. In the process of mobility management, NR introduces a new beam-based measurement model, which can achieve mobility based on beam quality and cell quality. First select the cell, and then select the beam from the cell.

[0004] The existing UE (User Equipment) mobility management based on beam measurement has the following main disadvantages. The switching process in the existing NR system first measures the average or maximum value of the SSB (Synchronization Signal and PBCH block) or CSI-RS (Channel State Information Reference Signal) beam of the abs (Application Bridge Server) Thresh (threshold value configured for the corresponding event) to determine the measurement value of the target cell. The UE then reports the measurement results, and the gNB (5G base station) issues a HO command to instruct the UE to initiate a switch to the target neighboring cell. The switching command can carry a beam ID (Identity document) with the maximum SSB level or CSI-RS level to instruct the UE to access the neighboring cell. It can be found that in the existing methods, the target cell is simply screened by the average or maximum value of the beam level, and the target neighboring cell beam is simply screened according to the maximum level value obtained by measurement, while the target neighboring cell, the target beam access success rate, the number of effective beams, the switching stability, the UE location and other information are ignored. There is still a lot of room for improvement in the switching within the NR system. [Summary of the invention]

[0005] In view of this, an embodiment of the present application provides a neighboring cell selection method and system to solve the technical problem that the target neighboring cell positioning accuracy is low and accurate NR switching control cannot be achieved in the prior art.

[0006] In a first aspect, an embodiment of the present application provides a neighboring cell selection method, the method comprising the following steps:

[0007] Based on the location distribution of all user equipments, a historical switching list including respective measurement control information is respectively issued to each user equipment;

[0008] Calculate the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment;

[0009] Calculate the effective beam number weight of each neighboring cell of each user equipment according to the measurement control information of each user equipment;

[0010] Selecting a target neighboring cell from among all neighboring cells of each user equipment according to the weighted level value of each neighboring cell and the weight of the number of effective beams in each user equipment;

[0011] According to the respective measurement control information of each user equipment and the respective target neighboring cell, a target beam is selected from all valid beams in the respective target neighboring cell of each user equipment.

[0012] Through the solution provided in this embodiment, based on the use and calculation of the location information and measurement control information of all user devices, excellent switching target neighboring cells and target beams with high switching success rate and high-quality signals can be selected, and precise NR switching control can be achieved without additional hardware modification.

[0013] In the method disclosed in the embodiment of the present application, in the step of sending a historical switching list containing respective measurement control information to each user equipment based on the location distribution of all user equipments, the following steps are included:

[0014] Count the location information of all user equipment relative to the current cell to build a location information list;

[0015] According to the location information list, a historical switching list including respective measurement control information is respectively sent to each user equipment based on the location information of each user equipment.

[0016] Through the solution provided in this embodiment, the historical switching list established based on the location information of the user equipment can enable the user equipment to perform more accurate NR neighbor area measurements without having to measure all neighbor areas and beams, thereby saving measurement time.

[0017] In the method disclosed in the embodiment of the present application, in the step of respectively calculating the weighted level value of each beam in each neighboring area of ​​each user equipment according to the respective measurement control information of each user equipment, the following steps are included:

[0018] Acquire all neighboring cells of each user equipment and all beams corresponding to each neighboring cell according to the measurement control information of each user equipment;

[0019] Based on each neighboring cell and the beam corresponding to each neighboring cell, obtain a first switching success rate when each user equipment switches from the source cell to each beam of each neighboring cell, the number of beams of each neighboring cell in each user equipment, and a beam level value of each beam of each neighboring cell;

[0020] According to the number of beams in each neighboring cell in each user equipment, the beam level value of each beam and the first switching success rate, the weighted level value of the effective beam that meets the measurement threshold parameter in each neighboring cell is calculated.

[0021] Through the solution provided in this embodiment, the signal strength radiated to the user equipment by each beam in each neighboring area can be calculated, which is helpful for subsequent calculation and selection of the optimal target neighboring area.

[0022] In the method disclosed in the embodiment of the present application, in the step of respectively calculating the effective beam number weight of each neighboring area of ​​each user equipment according to the respective measurement control information of each user equipment, the following steps are included:

[0023] Based on the measurement control information of each user equipment, all neighboring cells of each user equipment and all beams corresponding to each neighboring cell are acquired;

[0024] Based on each neighboring cell and the beam corresponding to each neighboring cell, the number of effective beams satisfying the measurement threshold parameter in each neighboring cell and the second switching success rate when each user equipment switches from the source cell to each neighboring cell are obtained;

[0025] According to the number of effective beams in each neighboring cell in each user equipment and the second switching success rate, the weight of the effective beam number of the effective beam in each neighboring cell is calculated.

[0026] Through the solution provided in this embodiment, it is possible to calculate the influence of all effective beams contained in each neighboring cell on the radiated user equipment, which is helpful for subsequent calculation and selection of the optimal target neighboring cell.

[0027] In the method disclosed in the embodiment of the present application, in the step of selecting a target neighboring area from all neighboring areas of each user equipment according to the weighted level value of each neighboring area in each user equipment and the weight of the number of effective beams, the following steps are included:

[0028] Calculate the handover selection weight of each neighboring cell based on the weighted level value and the effective beam number weight of each neighboring cell;

[0029] A weight table is established based on the handover selection weight of each neighboring area;

[0030] Arrange the handover selection weights of each neighboring area in the weight table in descending order;

[0031] For each user equipment, a neighboring cell corresponding to the maximum value of the handover selection weight is selected as a handover target neighboring cell of the user equipment.

[0032] Through the solution provided in this embodiment, it is possible to select a target neighboring area that takes into account both the switching success rate and the high-quality signal, thereby achieving accurate NR switching selection.

[0033] In the method disclosed in the embodiment of the present application, in the step of selecting a target beam from all valid beams of the target neighboring area of ​​each user equipment according to the measurement control information of each user equipment and the target neighboring area of ​​each user equipment, the following steps are included:

[0034] Acquire all beams corresponding to the target neighboring area of ​​each user equipment according to the measurement control information of each user equipment;

[0035] Based on the target neighboring cell and all beams corresponding to the target neighboring cell, obtaining a third switching success rate when each user equipment switches from the source cell to each beam of the target neighboring cell, and a beam level value of each beam of the target neighboring cell;

[0036] Calculating a weighted level value of each beam in the target neighboring area according to the beam level value of each beam in the target neighboring area and the third switching success rate;

[0037] For each user equipment, selecting a beam corresponding to a maximum value of a weighted level value as a target beam for the user equipment to switch to the target neighboring cell;

[0038] Sending the target neighboring cell and the target beam to a corresponding user equipment;

[0039] Each user equipment switches to the target beam of the respective target neighboring cell according to the respective target neighboring cell and the target beam direction;

[0040] Update the history switching list of each user device.

[0041] Through the solution provided in this embodiment, a target beam that has both a high switching success rate and a high impact on the user equipment can be selected in the determined target neighboring area, and the historical switching list can be updated in real time to facilitate the next neighboring area switching control.

[0042] In a second aspect, an embodiment of the present application provides a neighboring cell selection system, characterized in that the system includes:

[0043] A transceiver module, configured to send a historical switching list containing respective measurement control information to each user equipment based on the location distribution of all user equipments;

[0044] A first calculation module, configured to calculate the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment;

[0045] A second calculation module is used to calculate the effective beam number weight of each neighboring area of ​​each user equipment according to the measurement control information of each user equipment;

[0046] The screening module is used to select a target neighboring area from all neighboring areas of each user device according to the weighted level value of each neighboring area in each user device and the weight of the number of effective beams, and to select a target beam from all effective beams in the target neighboring area of ​​each user device according to the measurement control information of each user device and its target neighboring area.

[0047] Through the solution provided in this embodiment, four modules are used based on the use and calculation of the location information and measurement control information of all user devices to select excellent switching target neighboring cells and target beams with high switching success rate and high-quality signals, and accurate NR switching control can be achieved without additional hardware modification.

[0048] In the system disclosed in the embodiment of the present application, the transceiver module includes a user equipment information collector, a beam information collector and a neighboring cell switching information collector;

[0049] The user equipment information collector is used to collect user equipment information, thereby determining the location information of the user equipment;

[0050] The beam information collector is used to collect the first switching success rate when each user equipment switches from the source cell to each beam of each neighboring cell, and collect the beam level value of each beam in each neighboring cell reported by each user equipment;

[0051] The neighboring cell handover information collector is used to collect the handover success rate from the current cell to each neighboring cell.

[0052] Through the solution provided in this embodiment, the transceiver module uses three information collectors, which can simultaneously process various types of information reported from the user equipment, making information collection faster and more efficient.

[0053] In a third aspect, an embodiment of the present application provides a base station, including: a memory and a processor:

[0054] The memory is used to store computer programs;

[0055] The processor is used to execute the computer program stored in the memory so that the electronic device executes the method as described in the first aspect.

[0056] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, including a program or instructions. When the program or instructions are run on a computer, the method described in the first aspect is executed.

[0057] Compared with the prior art, this technical solution has at least the following beneficial effects:

[0058] The neighbor cell selection method and system disclosed in the embodiments of the present application can select a better switching target neighbor cell, can select a more stable target beam, and can obtain the required information without hardware modification, and the implementation process is simple.

Brief Description of the Drawings

[0059] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 This is a general flow chart of the neighboring area selection method provided in Example 1 of the present application;

[0061] Figure 2 It is a flowchart of step 100 in the neighboring cell selection method provided in Example 1 of the present application;

[0062] Figure 3 It is a flowchart of step 200 in the neighboring cell selection method provided in Example 1 of the present application;

[0063] Figure 4 It is a flowchart of step 300 in the neighboring cell selection method provided in Example 1 of the present application;

[0064] Figure 5 It is a flowchart of step 400 in the neighboring cell selection method provided in Example 1 of the present application;

[0065] Figure 6 It is a flowchart of step 500 in the neighboring cell selection method provided in Example 1 of the present application;

[0066] Figure 7 It is a module diagram of the neighboring cell selection system provided in Example 2 of the present application;

[0067] Figure 8 It is a schematic diagram of the overall system module showing the detailed structure of the transceiver module in the neighboring cell selection system provided in Example 2 of the present application.

[0068] Reference numerals:

[0069] 1-transceiver module; 2-first calculation module; 3-second calculation module; 4-screening module; 5-user equipment information collector; 6-beam information collector; 7-neighboring cell switching information collector. [Specific implementation method]

[0070] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0071] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0072] Example 1

[0073] Example 1 of the present application discloses a neighboring cell selection method. On the basis of the existing method, it introduces information such as the switching success rate of the target neighboring cell and the target beam, the number of effective beams, the switching stability, and the user equipment location information, thereby optimizing the switching control of the user equipment in the NR system and greatly improving the user experience of the user equipment in the NR system.

[0074] like Figure 1 As shown, the neighboring area selection method of this embodiment 1 includes the following steps:

[0075] Step 100: Based on the location distribution of all user equipments, a historical switching list including respective measurement control information is sent to each user equipment.

[0076] Step 200: Calculate the weighted level value of each beam in each neighboring cell of each user equipment according to the measurement control information of each user equipment.

[0077] Step 300: Calculate the effective beam number weight of each neighboring cell of each user equipment according to the measurement control information of each user equipment.

[0078] Step 400: According to the weighted level value of each neighboring cell in each user equipment and the weight of the effective beam number, a target neighboring cell is selected from all neighboring cells of each user equipment.

[0079] Step 500: According to the measurement control information of each user equipment and the target neighboring cell, a target beam is selected from all valid beams of the target neighboring cell of each user equipment.

[0080] In step 100, the location information of the user equipment can be obtained based on CSI-RS (channel state information reference signal), PTRS (phase tracking reference signal), and TA (timing advance) information. Usually, the base station sends a historical switching list to the user equipment through wireless communication. The historical switching list sent to the user equipment is based on the location information of the user equipment and includes information of each neighboring area, information of each beam in the neighboring area, and historical success rate information of each beam of the user equipment switching to each neighboring area. Measurement control information such as information. In step 200, the weighted level value of each beam in each neighboring area is different and may change dynamically. Only when the comprehensive weighted product is the largest, the weighted level value of the neighboring area is optimal. The better the weighted level value, the better the beam signal of the neighboring area. Compared with other combinations of neighboring areas and beams, it is better in terms of measurement level and switching success rate. In step Step300, the effective beam weight can intuitively reflect the radiation influence of the neighboring area on the user equipment. The larger the effective beam weight, the greater the radiation influence of the neighboring area on the user equipment, that is, the more switching selectivity the user equipment has for the same neighboring area, the greater the switching success rate. Among them, step Step200 and step Step300 can be executed simultaneously or sequentially. In step Step400, through weighted calculation, a target neighboring area with a larger weighted level value and a larger effective beam weight is obtained, which can not only ensure the switching success rate of the user equipment switching neighboring area, but also ensure that the user equipment can still be radiated to a stronger signal after switching to the target neighboring area. Compared with the neighboring area with only one high value, the target neighboring area can take into account the user experience and switching success rate of the user equipment. In step Step500, there are still effective beams with different signal strengths and switching success rates in the target neighboring area, and the optimal target beam is still obtained by weighted calculation, so that the user equipment can very accurately switch to the target beam with good signal quality, fast switching speed and high success rate.

[0081] The neighbor cell selection method of this embodiment 1 can select excellent switching target neighbor cells and target beams with high switching success rate and high-quality signals based on the use and calculation of the location information and measurement control information of all user devices, and can achieve precise NR switching control without additional hardware modification.

[0082] like Figure 2As shown, in the neighboring cell selection method of the present embodiment 1, in the step of Step 100 "issuing a historical switching list containing respective measurement control information to each user equipment based on the location distribution of all user equipments", the following steps are included:

[0083] Step 101: Count the location information of all user equipment relative to the current cell to build a location information list.

[0084] Step 102: According to the location information list, a history switching list including respective measurement control information is respectively issued to each user equipment based on the location information of each user equipment.

[0085] In step 101, assuming that there are q users in the current cell k, the distance e and direction h of each user relative to the cell k can be roughly counted according to the CSI-RS, PTRS, and TA information, and a user location information list is constructed accordingly:

[0086] ER={(e1,h1),…,(e x ,h x )…,(e q ,h q )},

[0087] Among them, (e x ,h x ) represents the (distance, direction) of user x.

[0088] In step 102, the base station sends a historical switching list CB (based on the location of the user equipment) to each user x according to the ER table (location information list). <cell-beam>List):

[0089] CB(e x ,h x )={ <cell1:beam1…beam j >, ..

[0090] <cell i :beam1…beam j >},

[0091] Among them, the historical switching list is mapped according to the information of neighboring cells and beams reported during each user equipment switch. The use of the historical switching list allows the user equipment to perform more accurate NR neighboring cell measurements without having to measure all neighboring cells-beams under the configured frequency point, saving measurement time.

[0092] When the historical switching list is in the initial state, all neighboring cells are measured by default for the user equipment:

[0093] CB(e x ,h x ) = {all neighboring cells of the base station},

[0094] Afterwards, the historical switching list will be dynamically mapped and updated according to the location of the user equipment, reported neighboring cell information, and reported beam information each time.

[0095] The neighbor cell selection method of this embodiment 1 establishes a historical switching list based on the location information of the user equipment, so that the user equipment can perform more accurate NR neighbor cell measurements without having to measure all neighbor cells and beams, thereby saving measurement time.

[0096] like Figure 3 As shown, in the neighboring cell selection method of the present embodiment 1, in the step of Step 200 "calculating the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment", the following steps are included:

[0097] Step 201: According to the measurement control information of each user equipment, all neighboring cells of each user equipment and all beams corresponding to each neighboring cell are obtained.

[0098] Step 202: Based on each neighboring cell and the beam corresponding to each neighboring cell, obtain the first switching success rate of each user equipment when switching from the source cell to each beam of each neighboring cell, the number of beams of each neighboring cell in each user equipment, and the beam level value of each beam of each neighboring cell.

[0099] Step 203: Calculate the weighted level value of the effective beam that meets the measurement threshold parameter in each neighboring cell according to the number of beams in each neighboring cell of each user equipment, the beam level value of each beam, and the first switching success rate.

[0100] According to step Step 201, for each user equipment under the base station, neighboring area and beam measurement are performed according to the historical switching list sent by the base station. Assuming that the measured neighboring area is i, the number of beams corresponding to the neighboring area i is m, and the neighboring area i and these effective beams are the measurement control information of each user equipment, then the weighted measurement value R of the beam that satisfies absThresh of the neighboring area i is i for:

[0101]

[0102] in, The user equipment measures the beam j in the neighboring cell i from the source cell (i.e., the cell where the user equipment is located) according to step 202. j ) The first handover success rate during handover; r j is the beam j of the neighboring cell i currently obtained in step 202 (beam j ) can be rsrp (Reference Signal Receiving Power), rsrq (Reference Signal Receiving Quality) or sinr (Signal to Interference plus Noise Ratio); absThresh is the measurement threshold parameter specified in 3gpp r15, which can be evaluated by the measurement value of ssb (Single Side Band) or the measurement value of CSI-RS. Here, R is used only when the mutual weighting of the first switching success rate and the beam level value of the beam in the historical switching list is the largest. i is the best, which means that the neighboring cell-beam combination in the historical switching list of the user equipment is better than other neighboring cell-beam combinations in terms of measured beam level value and switching success rate. Finally, according to step 203, the weighted measurement value R is obtained. i .

[0103] The neighboring cell selection method of the present embodiment 1 can calculate the signal strength radiated to the user equipment by each beam in each neighboring cell, which is helpful for subsequent calculation and selection of the optimal target neighboring cell.

[0104] like Figure 4 As shown, in the neighboring cell selection method of this embodiment 1, in the step of Step 300 "calculating the effective beam number weight of each neighboring cell of each user equipment according to the respective measurement control information of each user equipment", the following steps are included:

[0105] Step 301: Based on the measurement control information of each user equipment, all neighboring cells of each user equipment and all beams corresponding to each neighboring cell are obtained.

[0106] Step 302: Based on each neighboring cell and the beam corresponding to each neighboring cell, obtain the number of effective beams that meet the measurement threshold parameter in each neighboring cell and the second switching success rate when each user equipment switches from the source cell to each neighboring cell.

[0107] Step 303: Calculate the effective beam number weight of the effective beam in each neighboring cell according to the effective beam number of each neighboring cell in each user equipment and the second switching success rate.

[0108] In step 301, all neighboring cells i of each user equipment and all beams corresponding to each neighboring cell i are obtained, and according to the measurement results of the neighboring cell-beams in the historical switching list of each user equipment, the effective beam number weight F of each neighboring cell i whose threshold value is greater than absThresh is calculated. i :

[0109]

[0110] Among them, m i is the number of effective beams meeting the threshold in the neighboring area i obtained in step Step 302; i is the second handover success rate to the target neighbor i obtained in step Step 302.

[0111] Therefore, the effective beam number m i The more there are, the more switching options the user equipment has for the same neighboring cell i, and after failing to switch to a certain beam, there are more options for switching back from the beam and resuming switching, which ensures the subsequent resident stability. i The selection coefficient for switching to neighboring cell i is determined intuitively. i The larger the m i The larger the F i The bigger.

[0112] The neighboring cell selection method of the first embodiment can calculate the influence of all effective beams contained in each neighboring cell on the radiated user equipment, which is helpful for subsequent calculation and selection of the optimal target neighboring cell.

[0113] like Figure 5 As shown, in the neighboring cell selection method of the present embodiment 1, in the step of Step 400 "selecting a target neighboring cell in all neighboring cells of each user equipment according to the weighted level value of each neighboring cell and the weight of the effective beam number in each user equipment", the following steps are included:

[0114] Step 401: Calculate the switching selection weight of each neighboring cell based on the weighted level value and the effective beam number weight of each neighboring cell.

[0115] Step 402: Establish a weight table based on the handover selection weight of each neighboring cell.

[0116] Step 403: Arrange the switching selection weights of each neighboring area in the weight table in descending order.

[0117] Step 404: For each user equipment, a neighboring cell corresponding to the maximum value of the handover selection weight is selected as a handover target neighboring cell of the user equipment.

[0118] According to the weighted level value of neighboring cell i and the effective beam weight obtained in step 300, the switching selection weight W of neighboring cell i is calculated in step 401. i :

[0119] W i =R i *f i ,

[0120] Where R i 、F i The larger the value is, the higher the current effective beam number, weighted level value, and historical switching success rate of neighboring cell i are, and the neighboring cell i should be selected as the switching target neighboring cell of the user equipment.

[0121] According to step 401, the handover selection weights of all neighboring cells of the current cell k are calculated, and according to step 402, the handover selection weight table WL is obtained: WL = {W x ,...W i ...,W y }, and sort in descending order according to step 403, then select the neighboring area corresponding to the maximum value of the switching selection weight according to step 404, which is the target switching neighboring area.

[0122] The neighboring cell selection method of this embodiment 1 can select a target neighboring cell that takes into account both the switching success rate and the high-quality signal, thereby achieving accurate NR switching selection.

[0123] like Figure 6 As shown, in the neighboring cell selection method of the present embodiment 1, in the step of Step 500 "selecting a target beam from all valid beams of the target neighboring cell of each user equipment according to the respective measurement control information of each user equipment and the respective target neighboring cell", the following steps are included:

[0124] Step 501: According to the measurement control information of each user equipment, all beams corresponding to the target neighboring area of ​​each user equipment are obtained.

[0125] Step 502: Based on the target neighboring cell and all beams corresponding to the target neighboring cell, obtain the third switching success rate of each user equipment when switching from the source cell to each beam of the target neighboring cell, and the beam level value of each beam of the target neighboring cell.

[0126] Step 503: Calculate the weighted level value of each beam in the target neighboring cell according to the beam level value of each beam in the target neighboring cell and the third switching success rate.

[0127] Step 504: For each user equipment, a beam corresponding to the maximum value of the weighted level value is selected as a target beam for the user equipment to switch to the target neighboring cell.

[0128] Step 505: Send the target neighboring cell and the target beam to the corresponding user equipment.

[0129] Step 506: Each user equipment switches to the target beam of its own target neighboring cell according to its own target neighboring cell and target beam.

[0130] Step 507: Update the historical switching list of each user device.

[0131] Assuming that the target neighboring cell is determined to be i, the target beam is the one with the largest weighted level value weighted based on the third handover success rate among all valid beams toward the target neighboring cell i:

[0132]

[0133] Therefore, the base station has determined the target neighboring cell i and the corresponding target beam, and sent them to the user equipment. The user equipment completes the switching to the target neighboring cell based on this information.

[0134] At the same time, the base station updates the historical switching list so that the neighboring cell-beam information based on the location information of the user equipment under the historical switching list is the latest one.

[0135] The neighbor cell selection method of this embodiment 1 can select a target beam that has both a high switching success rate and a high impact on the user equipment in a determined target neighbor cell, and can update the historical switching list in real time to facilitate the next neighbor cell switching control.

[0136] Example 2

[0137] Example 2 of the present application discloses a neighbor cell selection system. On the basis of the existing system, it introduces information such as the switching success rate of the target neighbor cell and the target beam, the number of effective beams, the switching stability, and the user equipment location information, optimizes the switching control of the user equipment in the NR system, and greatly improves the user experience of the user equipment in the NR system.

[0138] like Figure 7 As shown, the neighboring cell selection system of the present embodiment 2 includes a transceiver module 1, a first calculation module 2, a second calculation module 3 and a screening module 4 which are connected to each other for communication.

[0139] Among them, the transceiver module 1 is used to send a historical switching list containing respective measurement control information to each user device based on the location distribution of all user devices; the first calculation module 2 is used to calculate the weighted level value of each beam in each neighboring area of ​​each user device according to the respective measurement control information of each user device; the second calculation module 3 is used to calculate the effective beam number weight of each neighboring area of ​​each user device according to the respective measurement control information of each user device; the screening module 4 is used to select a target neighboring area from all the neighboring areas of each user device according to the weighted level value of each neighboring area in each user device and the effective beam number weight, and select a target beam from all the effective beams in the target neighboring area of ​​each user device according to the respective measurement control information of each user device and the respective target neighboring area.

[0140] The neighbor cell selection system of this embodiment 2 uses four modules based on the use and calculation of the location information and measurement control information of all user devices to select excellent switching target neighbor cells and target beams with high switching success rate and high-quality signals, and can achieve precise NR switching control without additional hardware modification.

[0141] like Figure 8 As shown, in the neighboring cell selection system of the present embodiment 2, the transceiver module 1 includes a user equipment information collector 5, a beam information collector 6 and a neighboring cell switching information collector 7; the user equipment information collector 5 is used to collect user equipment information, thereby determining the location information of the user equipment; the beam information collector 6 is used to collect the first switching success rate of each user equipment when switching from the source cell to each beam of each neighboring cell, and collect the beam level value of each beam in each neighboring cell reported by each user equipment; the neighboring cell switching information collector 7 is used to collect the switching success rate of the current cell to each neighboring cell.

[0142] In the neighboring cell selection system of the second embodiment, the transceiver module 1 uses three information collectors 5, 6, and 7, which can simultaneously process various types of information reported from the user equipment, making information collection faster and more efficient.

[0143] Example 3

[0144] Embodiment 3 of the present application further provides a base station, including: a memory and a processor:

[0145] Memory for storing computer programs;

[0146] The processor is used to execute the computer program stored in the memory so that the electronic device executes the neighboring area selection method disclosed in Example 1 of the present application.

[0147] Example 4

[0148] Embodiment 4 of the present application also provides a computer-readable storage medium, including a program or instruction. When the program or instruction runs on a computer, the neighbor area selection method disclosed in Embodiment 1 of the present application is executed.

[0149] The neighbor cell selection method and system disclosed in the embodiments of the present application can select a better switching target neighbor cell, can select a more stable target beam, and can obtain the required information without hardware modification, and the implementation process is simple.

[0150] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A neighboring area selection method, characterized in that: The method comprises the following steps: Based on the location distribution of all user equipments, a historical switching list including respective measurement control information is respectively issued to each user equipment; Calculate the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment; Calculate the effective beam number weight of each neighboring cell of each user equipment according to the measurement control information of each user equipment; Selecting a target neighboring cell from among all neighboring cells of each user equipment according to the weighted level value of each neighboring cell and the weight of the number of effective beams in each user equipment; According to the respective measurement control information of each user equipment and the respective target neighboring cell, a target beam is selected from all valid beams of the respective target neighboring cell of each user equipment; The step of respectively calculating the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment comprises the following steps: Acquire all neighboring cells of each user equipment and all beams corresponding to each neighboring cell according to the measurement control information of each user equipment; Based on each neighboring cell and the beam corresponding to each neighboring cell, obtain a first switching success rate when each user equipment switches from the source cell to each beam of each neighboring cell, the number of beams of each neighboring cell in each user equipment, and a beam level value of each beam of each neighboring cell; According to the number of beams in each neighboring cell in each user equipment, the beam level value of each beam and the first switching success rate, the weighted level value of the effective beam that meets the measurement threshold parameter in each neighboring cell is calculated.

2. The neighboring area selection method according to claim 1, characterized in that: The step of sending a historical switching list including respective measurement control information to each user equipment based on the location distribution of all user equipments includes the following steps: Count the location information of all user equipment relative to the current cell to build a location information list; According to the location information list, a historical switching list including respective measurement control information is respectively sent to each user equipment based on the location information of each user equipment.

3. The neighboring area selection method according to claim 1, characterized in that: The step of respectively calculating the effective beam number weight of each neighboring cell of each user equipment according to the respective measurement control information of each user equipment includes the following steps: Based on the measurement control information of each user equipment, all neighboring cells of each user equipment and all beams corresponding to each neighboring cell are acquired; Based on each neighboring cell and the beam corresponding to each neighboring cell, the number of valid beams satisfying the measurement threshold parameter in each neighboring cell and the second switching success rate when each user equipment switches from the source cell to each neighboring cell are obtained; According to the number of effective beams in each neighboring cell in each user equipment and the second switching success rate, the weight of the effective beam number of the effective beam in each neighboring cell is calculated.

4. The neighboring area selection method according to claim 1, characterized in that: The step of selecting a target neighboring cell from all neighboring cells of each user equipment according to the weighted level value of each neighboring cell and the weight of the number of effective beams in each user equipment includes the following steps: Calculate the handover selection weight of each neighboring cell based on the weighted level value and the effective beam number weight of each neighboring cell; A weight table is established based on the handover selection weight of each neighboring area; Arrange the handover selection weights of each neighboring area in the weight table in descending order; For each user equipment, a neighboring cell corresponding to the maximum value of the handover selection weight is selected as a handover target neighboring cell of the user equipment.

5. The neighboring area selection method according to claim 1, characterized in that: In the step of selecting a target beam from all valid beams of the target neighboring area of ​​each user equipment according to the measurement control information of each user equipment and the target neighboring area of ​​each user equipment, the following steps are included: Acquire all beams corresponding to the target neighboring area of ​​each user equipment according to the measurement control information of each user equipment; Based on the target neighboring cell and all beams corresponding to the target neighboring cell, obtaining a third switching success rate when each user equipment switches from the source cell to each beam of the target neighboring cell, and a beam level value of each beam of the target neighboring cell; Calculating a weighted level value of each beam in the target neighboring area according to the beam level value of each beam in the target neighboring area and the third switching success rate; For each user equipment, selecting a beam corresponding to a maximum value of a weighted level value as a target beam for the user equipment to switch to the target neighboring cell; Sending the target neighboring cell and the target beam to a corresponding user equipment; Each user equipment switches to the target beam of the respective target neighboring cell according to the respective target neighboring cell and the target beam direction; Update the history switching list of each user device.

6. A neighbor selection system, characterized in that: The system comprises: A transceiver module, configured to send a historical switching list containing respective measurement control information to each user equipment based on the location distribution of all user equipments; A first calculation module, configured to calculate the weighted level value of each beam in each neighboring cell of each user equipment according to the respective measurement control information of each user equipment; A second calculation module is used to calculate the effective beam number weight of each neighboring area of ​​each user equipment according to the measurement control information of each user equipment; A screening module, configured to select a target neighboring cell from all neighboring cells of each user equipment according to the weighted level value of each neighboring cell in each user equipment and the weight of the number of effective beams, and select a target beam from all effective beams of the target neighboring cell of each user equipment according to the measurement control information of each user equipment and the target neighboring cell; The first calculation module is specifically used to obtain all neighboring cells of each user device and all beams corresponding to each neighboring cell according to the measurement control information of each user device; based on each neighboring cell and the beam corresponding to each neighboring cell, obtain the first switching success rate of each user device when switching from the source cell to each beam of each neighboring cell, the number of beams of each neighboring cell in each user device, and the beam level value of each beam of each neighboring cell; according to the number of beams of each neighboring cell in each user device, the beam level value of each beam and the first switching success rate, calculate the weighted level value of the effective beam that meets the measurement threshold parameter in each neighboring cell.

7. The neighboring cell selection system according to claim 6, characterized in that: The transceiver module includes a user equipment information collector, a beam information collector and a neighboring cell switching information collector; The user equipment information collector is used to collect user equipment information, thereby determining the location information of the user equipment; The beam information collector is used to collect the first switching success rate when each user equipment switches from the source cell to each beam of each neighboring cell, and collect the beam level value of each beam in each neighboring cell reported by each user equipment; The neighboring cell handover information collector is used to collect the handover success rate from the current cell to each neighboring cell.

8. A base station, characterized in that: include: Memory and processor: The memory is used to store computer programs; The processor is configured to execute the computer program stored in the memory, so that the base station executes the method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that: The method comprises a program or an instruction. When the program or the instruction is run on a computer, the method according to any one of claims 1 to 5 is executed.

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