Cell management method, apparatus, and device
By evaluating the beam level execution conditions configured by layer 1 measurement on the terminal, determining the target cell and the target beam, the problem that the UE cannot judge cell management is solved, and the decision-making ability of cell change and TA management is realized.
Patent Information
- Application Number
- PCT/CN2024/100516
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-06
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-13
AI Technical Summary
The prior art cannot support the user equipment (UE) to determine whether to perform cell management, especially in the layer 1/layer 2 triggered mobility enhancement (LTM) mechanism based on user equipment.
A cell management method is provided, by acquiring execution conditions on the terminal, evaluating whether there are target candidate cells that meet these conditions, and determining the target cell and its target beam. The execution conditions are based on the beam level of the configuration based on the layer 1 measurement.
It supports the UE to clarify the target cell and/or the target beam, and then decide whether to perform cell changes or obtain the timing advance amount (TA) of the target cell, so as to realize the UE's plan to determine whether to perform cell management.
Smart Images

Figure CN2024100516_13032025_PF_FP_ABST
Abstract
Description
A cell management method, device and equipment
[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on September 6, 2023, with application number 202311145581.3 and application name “A Cell Management Method, Device and Equipment”, the entire contents of which are incorporated by reference into this disclosure. Technical Field
[0002] The present disclosure relates to the field of communication technology, and in particular to a cell management method, apparatus, and device. Background Art
[0003] The R18 Mobility Enhancement Project studies the Layer 1 (L1) and Layer 2 (L2) triggered mobility (L1 / L2-Triggered Mobility, or L1L2 Mob, or LTM) mechanism. Specifically, the base station notifies the user equipment (UE) to change its serving cell by sending an L1L2 command, and decides on cell changes or timing advance (TA) acquisition based on the L1 measurement results reported by the UE. However, it does not specify how to implement UE-triggered LTM, and it is not clear how the UE makes decisions on cell management (such as cell changes).
[0004] As mentioned above, the R18 mobility enhancement project supports the LTM mechanism based on network decision-making, but does not specify the LTM mechanism based on UE decision-making, and cannot support the solution of implementing UE decision-making on whether to perform cell management.
[0005] Summary of the Invention
[0006] The purpose of the present disclosure is to provide a cell management method, apparatus and device to solve the problem in related technologies that the solution for enabling UE to decide whether to perform cell management cannot be supported.
[0007] In order to solve the above technical problems, the present disclosure provides a cell management method applied to a terminal, including:
[0008] Get execution conditions;
[0009] evaluating whether there is at least one target candidate cell that meets the execution condition;
[0010] If the at least one target candidate cell exists, determining the target cell, and / or determining the target beam of the target cell;
[0011] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0012] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0013] If the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition;
[0014] The first evaluation condition includes at least one of the following:
[0015] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0016] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0017] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0018] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0019] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0020] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0021] When the second evaluation condition is met, determining that the candidate cell does not meet the execution condition;
[0022] The second evaluation condition includes at least one of the following:
[0023] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0024] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0025] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0026] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0027] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0028] In some embodiments, it further includes:
[0029] Get configuration information;
[0030] The configuration information includes at least one of the following:
[0031] Preset time;
[0032] Preset deviation value;
[0033] Preset threshold;
[0034] Preset number of beams;
[0035] Preset number of times;
[0036] Preset probability;
[0037] Count the number of times;
[0038] Cell measurement configuration information.
[0039] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0040] The cell beam signal quality includes at least one of the following:
[0041] The signal quality of the beam with the best signal quality in the cell;
[0042] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0043] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0044] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0045] The signal quality of any beam contained in the cell;
[0046] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0047] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0048] In some embodiments, determining the target cell includes:
[0049] According to the first manner, determining a target cell from the at least one target candidate cell;
[0050] The first method includes at least one of the following:
[0051] Select the target cell based on the terminal;
[0052] Select the cell with the beam with the highest signal quality as the target cell;
[0053] Selecting a cell with the largest number of beams that meets the execution condition as the target cell;
[0054] Selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell;
[0055] selecting at least one of the target candidate cells as a target cell;
[0056] The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
[0057] In some embodiments, determining a target beam of a target cell includes:
[0058] According to the second method, determining a target beam of the target cell;
[0059] The second method includes at least one of the following:
[0060] Select the beam with the best signal quality in the target cell as the target beam;
[0061] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time as the target beam;
[0062] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times as the target beam;
[0063] Among the beams included in the target cell, selecting a beam that meets the execution condition and reaches the terminal first as the target beam;
[0064] Selecting a target beam from among the beams included in the target cell based on the terminal implementation;
[0065] Selecting, from beams included in the target cell, a beam that meets the execution condition and is associated with pre-configured uplink resources as the target beam;
[0066] Among the beams included in the target cell, select the beam that meets the execution condition, is associated with the pre-configured uplink resources, and reaches the terminal first as the target beam;
[0067] Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
[0068] In some embodiments, it further includes:
[0069] Using the third method to manage the target community;
[0070] The third method includes at least one of the following:
[0071] Triggering a random access procedure to the target cell;
[0072] Sending uplink data on pre-configured uplink resources;
[0073] Monitor the physical downlink control channel PDCCH in the target cell;
[0074] When the valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources;
[0075] If a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index;
[0076] If no valid TA of the target cell is obtained, a random access procedure is triggered to the target cell;
[0077] Before accessing the target cell, sending first indication information to the network device, where the first indication information is used to indicate the target cell and / or target beam information;
[0078] When a valid TA of the target cell is obtained, before accessing the target cell, second indication information is sent to the network device, where the second indication information is used to indicate the target cell and / or target beam information;
[0079] Determine and obtain the TA of the target cell.
[0080] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0081] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0082] determining at least one candidate cell to be evaluated;
[0083] determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition;
[0084] The candidate cells to be evaluated include at least one of the following:
[0085] The terminal obtains a candidate cell with a valid TA;
[0086] A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set;
[0087] The network configuration indication information indicates the candidate cells to be evaluated;
[0088] All candidate cells configured by the network;
[0089] All candidate cells associated with the execution condition.
[0090] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0091] According to a fourth approach, evaluating whether there is at least one target candidate cell that meets the execution condition;
[0092] The fourth method includes at least one of the following:
[0093] The media access control MAC entity of the terminal performs evaluation based on information reported by the physical layer of the terminal;
[0094] evaluating the physical layer of the terminal;
[0095] The radio resource control (RRC) layer of the terminal performs evaluation based on information reported by the bottom layer of the terminal.
[0096] The present disclosure also provides a cell management method, which is applied to a network device and includes:
[0097] Send execution conditions;
[0098] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0099] In some embodiments, it further includes:
[0100] Sending a first evaluation condition to the terminal; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition;
[0101] The first evaluation condition includes at least one of the following:
[0102] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0103] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0104] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0105] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0106] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0107] In some embodiments, it further includes:
[0108] Sending a second evaluation condition to the terminal; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition;
[0109] The second evaluation condition includes at least one of the following:
[0110] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0111] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0112] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0113] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0114] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0115] In some embodiments, it further includes:
[0116] Send configuration information;
[0117] The configuration information includes at least one of the following:
[0118] Preset time;
[0119] Preset deviation value;
[0120] Preset threshold;
[0121] Preset number of beams;
[0122] Preset number of times;
[0123] Preset probability;
[0124] Count the number of times;
[0125] Cell measurement configuration information.
[0126] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0127] The cell beam signal quality includes at least one of the following:
[0128] The signal quality of the beam with the best signal quality in the cell;
[0129] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0130] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0131] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0132] The signal quality of any beam contained in the cell;
[0133] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0134] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0135] In some embodiments, at least one of the following is further included:
[0136] receiving first indication information sent by the terminal before accessing the target cell, where the first indication information is used to indicate the target cell and / or target beam information;
[0137] The receiving terminal sends second indication information before accessing the target cell when obtaining the valid TA of the target cell, where the second indication information is used to indicate the target cell and / or target beam information.
[0138] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0139] In some embodiments, at least one of the following is further included:
[0140] Sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate a candidate cell to be evaluated;
[0141] Configuring candidate cells for the terminal;
[0142] Sending a candidate cell configuration associated with the execution condition to the terminal.
[0143] The present disclosure also provides a cell management device, which is a terminal and includes a memory, a transceiver, and a processor.
[0144] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
[0145] Get execution conditions;
[0146] evaluating whether there is at least one target candidate cell that meets the execution condition;
[0147] If the at least one target candidate cell exists, determining the target cell, and / or determining the target beam of the target cell;
[0148] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0149] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0150] If the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition;
[0151] The first evaluation condition includes at least one of the following:
[0152] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0153] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0154] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0155] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0156] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0157] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0158] When the second evaluation condition is met, determining that the candidate cell does not meet the execution condition;
[0159] The second evaluation condition includes at least one of the following:
[0160] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0161] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0162] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0163] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0164] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0165] In some embodiments, the operations further include:
[0166] Get configuration information;
[0167] The configuration information includes at least one of the following:
[0168] Preset time;
[0169] Preset deviation value;
[0170] Preset threshold;
[0171] Preset number of beams;
[0172] Preset number of times;
[0173] Preset probability;
[0174] Count the number of times;
[0175] Cell measurement configuration information.
[0176] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0177] The cell beam signal quality includes at least one of the following:
[0178] The signal quality of the beam with the best signal quality in the cell;
[0179] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0180] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0181] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0182] The signal quality of any beam contained in the cell;
[0183] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0184] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0185] In some embodiments, determining the target cell includes:
[0186] According to the first manner, determining a target cell from the at least one target candidate cell;
[0187] The first method includes at least one of the following:
[0188] Select the target cell based on the terminal;
[0189] Select the cell with the beam with the highest signal quality as the target cell;
[0190] Selecting a cell with the largest number of beams that meets the execution condition as the target cell;
[0191] Selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell;
[0192] selecting at least one of the target candidate cells as a target cell;
[0193] The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
[0194] In some embodiments, determining a target beam of a target cell includes:
[0195] According to the second method, determining a target beam of the target cell;
[0196] The second method includes at least one of the following:
[0197] Select the beam with the best signal quality in the target cell as the target beam;
[0198] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time as the target beam;
[0199] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times as the target beam;
[0200] Among the beams included in the target cell, selecting a beam that meets the execution condition and reaches the terminal first as the target beam;
[0201] Selecting a target beam from among the beams included in the target cell based on the terminal implementation;
[0202] Selecting, from beams included in the target cell, a beam that meets the execution condition and is associated with pre-configured uplink resources as the target beam;
[0203] Among the beams included in the target cell, select the beam that meets the execution condition, is associated with the pre-configured uplink resources, and reaches the terminal first as the target beam;
[0204] Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
[0205] In some embodiments, the operations further include:
[0206] Using the third method to manage the target community;
[0207] The third method includes at least one of the following:
[0208] Triggering a random access procedure to the target cell;
[0209] sending uplink data on pre-configured uplink resources by the transceiver;
[0210] Monitor the physical downlink control channel PDCCH in the target cell;
[0211] When a valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources by the transceiver;
[0212] If a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index;
[0213] If no valid TA of the target cell is obtained, a random access procedure is triggered to the target cell;
[0214] Before accessing the target cell, sending first indication information to the network device through the transceiver, where the first indication information is used to indicate the target cell and / or target beam information;
[0215] When a valid TA of the target cell is obtained, before accessing the target cell, sending second indication information to the network device through the transceiver, where the second indication information is used to indicate the target cell and / or target beam information;
[0216] Determine and obtain the TA of the target cell.
[0217] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0218] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0219] determining at least one candidate cell to be evaluated;
[0220] determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition;
[0221] The candidate cells to be evaluated include at least one of the following:
[0222] The terminal obtains a candidate cell with a valid TA;
[0223] A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set;
[0224] The network configuration indication information indicates the candidate cells to be evaluated;
[0225] All candidate cells configured by the network;
[0226] All candidate cells associated with the execution condition.
[0227] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0228] According to a fourth approach, evaluating whether there is at least one target candidate cell that meets the execution condition;
[0229] The fourth method includes at least one of the following:
[0230] The media access control MAC entity of the terminal performs evaluation based on information reported by the physical layer of the terminal;
[0231] evaluating the physical layer of the terminal;
[0232] The radio resource control (RRC) layer of the terminal performs evaluation based on information reported by the bottom layer of the terminal.
[0233] The present disclosure also provides a cell management device, which is a network device and includes a memory, a transceiver, and a processor.
[0234] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
[0235] sending an execution condition via the transceiver;
[0236] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0237] In some embodiments, the operations further include:
[0238] Sending a first evaluation condition to the terminal through the transceiver; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition;
[0239] The first evaluation condition includes at least one of the following:
[0240] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0241] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0242] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0243] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0244] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0245] In some embodiments, the operations further include:
[0246] Sending a second evaluation condition to the terminal through the transceiver; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition;
[0247] The second evaluation condition includes at least one of the following:
[0248] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0249] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0250] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0251] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0252] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0253] In some embodiments, the operations further include:
[0254] sending configuration information via the transceiver;
[0255] The configuration information includes at least one of the following:
[0256] Preset time;
[0257] Preset deviation value;
[0258] Preset threshold;
[0259] Preset number of beams;
[0260] Preset number of times;
[0261] Preset probability;
[0262] Count the number of times;
[0263] Cell measurement configuration information.
[0264] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0265] The cell beam signal quality includes at least one of the following:
[0266] The signal quality of the beam with the best signal quality in the cell;
[0267] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0268] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0269] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0270] The signal quality of any beam contained in the cell;
[0271] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0272] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0273] In some embodiments, the operations further include at least one of the following:
[0274] receiving, by the transceiver, first indication information sent by the terminal before accessing the target cell, where the first indication information is used to indicate the target cell and / or target beam information;
[0275] Through the transceiver, the receiving terminal sends second indication information before accessing the target cell when obtaining the valid TA of the target cell, where the second indication information is used to indicate the target cell and / or target beam information.
[0276] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0277] In some embodiments, the operations further include at least one of the following:
[0278] Sending network configuration indication information to the terminal through the transceiver, where the network configuration indication information is used to indicate a candidate cell to be evaluated;
[0279] configuring candidate cells for the terminal via the transceiver;
[0280] The candidate cell configuration associated with the execution condition is sent to the terminal through the transceiver.
[0281] The present disclosure also provides a cell management device, which is applied to a terminal and includes:
[0282] A first acquiring unit, configured to acquire an execution condition;
[0283] a first processing unit, configured to evaluate whether there is at least one target candidate cell that meets the execution condition;
[0284] a first determining unit, configured to determine a target cell and / or a target beam of the target cell if the at least one target candidate cell exists;
[0285] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0286] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0287] If the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition;
[0288] The first evaluation condition includes at least one of the following:
[0289] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0290] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0291] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0292] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0293] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0294] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0295] When the second evaluation condition is met, determining that the candidate cell does not meet the execution condition;
[0296] The second evaluation condition includes at least one of the following:
[0297] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0298] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0299] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0300] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0301] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0302] In some embodiments, it further includes:
[0303] A second acquiring unit, configured to acquire configuration information;
[0304] The configuration information includes at least one of the following:
[0305] Preset time;
[0306] Preset deviation value;
[0307] Preset threshold;
[0308] Preset number of beams;
[0309] Preset number of times;
[0310] Preset probability;
[0311] Count the number of times;
[0312] Cell measurement configuration information.
[0313] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0314] The cell beam signal quality includes at least one of the following:
[0315] The signal quality of the beam with the best signal quality in the cell;
[0316] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0317] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0318] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0319] The signal quality of any beam contained in the cell;
[0320] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0321] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0322] In some embodiments, determining the target cell includes:
[0323] According to the first manner, determining a target cell from the at least one target candidate cell;
[0324] The first method includes at least one of the following:
[0325] Select the target cell based on the terminal;
[0326] Select the cell with the beam with the highest signal quality as the target cell;
[0327] Selecting a cell with the largest number of beams that meets the execution condition as the target cell;
[0328] Selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell;
[0329] selecting at least one of the target candidate cells as a target cell;
[0330] The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
[0331] In some embodiments, determining a target beam of a target cell includes:
[0332] According to the second method, determining a target beam of the target cell;
[0333] The second method includes at least one of the following:
[0334] Select the beam with the best signal quality in the target cell as the target beam;
[0335] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time as the target beam;
[0336] Among the beams included in the target cell, selecting a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times as the target beam;
[0337] Among the beams included in the target cell, selecting a beam that meets the execution condition and reaches the terminal first as the target beam;
[0338] Selecting a target beam from among the beams included in the target cell based on the terminal implementation;
[0339] Selecting, from beams included in the target cell, a beam that meets the execution condition and is associated with pre-configured uplink resources as the target beam;
[0340] Among the beams included in the target cell, select the beam that meets the execution condition, is associated with the pre-configured uplink resources, and reaches the terminal first as the target beam;
[0341] Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
[0342] In some embodiments, it further includes:
[0343] a second processing unit, configured to manage the target cell using a third method;
[0344] The third method includes at least one of the following:
[0345] Triggering a random access procedure to the target cell;
[0346] Sending uplink data on pre-configured uplink resources;
[0347] Monitor the physical downlink control channel PDCCH in the target cell;
[0348] When the valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources;
[0349] If a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index;
[0350] If no valid TA of the target cell is obtained, a random access procedure is triggered to the target cell;
[0351] Before accessing the target cell, sending first indication information to the network device, where the first indication information is used to indicate the target cell and / or target beam information;
[0352] When a valid TA of the target cell is obtained, before accessing the target cell, second indication information is sent to the network device, where the second indication information is used to indicate the target cell and / or target beam information;
[0353] Determine and obtain the TA of the target cell.
[0354] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0355] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0356] determining at least one candidate cell to be evaluated;
[0357] determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition;
[0358] The candidate cells to be evaluated include at least one of the following:
[0359] The terminal obtains a candidate cell with a valid TA;
[0360] A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set;
[0361] The network configuration indication information indicates the candidate cells to be evaluated;
[0362] All candidate cells configured by the network;
[0363] All candidate cells associated with the execution condition.
[0364] In some embodiments, the evaluating whether there is at least one target candidate cell that meets the execution condition includes:
[0365] According to a fourth approach, evaluating whether there is at least one target candidate cell that meets the execution condition;
[0366] The fourth method includes at least one of the following:
[0367] The media access control MAC entity of the terminal performs evaluation based on information reported by the physical layer of the terminal;
[0368] evaluating the physical layer of the terminal;
[0369] The radio resource control (RRC) layer of the terminal performs evaluation based on information reported by the bottom layer of the terminal.
[0370] The present disclosure also provides a cell management device, which is applied to a network device and includes:
[0371] A first sending unit, configured to send an execution condition;
[0372] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0373] In some embodiments, it further includes:
[0374] A second sending unit is configured to send a first evaluation condition to the terminal; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition;
[0375] The first evaluation condition includes at least one of the following:
[0376] The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition;
[0377] The beam signal quality of the candidate cell is greater than a second preset threshold and meets a second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition;
[0378] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition;
[0379] The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to the fourth preset threshold and satisfies a fourth preset condition;
[0380] The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0381] In some embodiments, it further includes:
[0382] A third sending unit is configured to send a second evaluation condition to the terminal; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition;
[0383] The second evaluation condition includes at least one of the following:
[0384] The serving cell beam signal quality is greater than a sixth preset threshold and meets a sixth preset condition;
[0385] The beam signal quality of the candidate cell is less than a seventh preset threshold and meets a seventh preset condition;
[0386] The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition;
[0387] The serving cell beam signal quality is less than a ninth preset threshold and meets a ninth preset condition;
[0388] The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
[0389] In some embodiments, it further includes:
[0390] A fourth sending unit, configured to send configuration information;
[0391] The configuration information includes at least one of the following:
[0392] Preset time;
[0393] Preset deviation value;
[0394] Preset threshold;
[0395] Preset number of beams;
[0396] Preset number of times;
[0397] Preset probability;
[0398] Count the number of times;
[0399] Cell measurement configuration information.
[0400] In some embodiments, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality;
[0401] The cell beam signal quality includes at least one of the following:
[0402] The signal quality of the beam with the best signal quality in the cell;
[0403] Beam signal qualities of n beams contained in the cell obtained after filtering according to a first preset rule; the n beams are the top n beams ranked in descending order of signal quality;
[0404] The beam signal quality obtained by filtering the beams in the cell whose signal quality is higher than the eleventh preset threshold according to the second preset rule;
[0405] Beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is greater than a twelfth preset threshold;
[0406] The signal quality of any beam contained in the cell;
[0407] beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule;
[0408] The signal quality of the beam with the worst signal quality among the second beams included in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0409] In some embodiments, the device further includes a first receiving unit configured to perform at least one of the following:
[0410] receiving first indication information sent by the terminal before accessing the target cell, where the first indication information is used to indicate the target cell and / or target beam information;
[0411] The receiving terminal sends second indication information before accessing the target cell when obtaining the valid TA of the target cell, where the second indication information is used to indicate the target cell and / or target beam information.
[0412] In some embodiments, the execution condition is configured separately for each cell, or configured jointly for all cells, or configured separately for each cell group.
[0413] In some embodiments, the device further includes a fifth sending unit configured to perform at least one of the following:
[0414] Sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate a candidate cell to be evaluated;
[0415] Configuring candidate cells for the terminal;
[0416] Sending a candidate cell configuration associated with the execution condition to the terminal.
[0417] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned terminal side or network device side method.
[0418] The beneficial effects of the above technical solution disclosed in the present invention are as follows:
[0419] In the above scheme, the cell management method obtains the execution conditions; evaluates whether there is at least one target candidate cell that meets the execution conditions; if there is at least one target candidate cell, determines the target cell, and / or determines the target beam of the target cell; wherein the execution conditions are beam-level execution conditions based on the layer 1 measurement configuration; it can support the UE to clarify the target cell and / or target beam (that meets the execution conditions), and then determine whether to perform a cell change, or determine whether the TA of the target cell can be obtained or through which beam to obtain, thereby supporting the implementation of the UE's decision on whether to perform cell management. BRIEF DESCRIPTION OF THE DRAWINGS
[0420] FIG1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;
[0421] FIG2 is a flowchart of a cell management method according to an embodiment of the present disclosure;
[0422] FIG3 is a second flowchart of the cell management method according to an embodiment of the present disclosure;
[0423] FIG4 is a first structural diagram of a cell management device according to an embodiment of the present disclosure;
[0424] FIG5 is a second structural diagram of a cell management device according to an embodiment of the present disclosure;
[0425] FIG6 is a first structural diagram of a cell management device according to an embodiment of the present disclosure;
[0426] FIG7 is a second structural diagram of a cell management device according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0427] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.
[0428] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.
[0429] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.
[0430] It is noted that the technical solution provided by the embodiment of the present disclosure can be applied to a variety of systems, especially the fifth generation (5 thThe 5G Generation (5G) system can be, for example, a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, and the like. These various systems include terminal equipment and network equipment. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5G System, 5GS), and the like.
[0431] Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure may be applied. The wireless communication system includes a terminal device (also referred to as a terminal) and a network device.
[0432] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.
[0433] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named by another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the next generation system, a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
[0434] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding transmission, or beamforming transmission.
[0435] The following first introduces the contents involved in the solution provided by the embodiment of the present disclosure.
[0436] 1. About the handover or the Primary SCG Cell (PSCell) change process;
[0437] In the New Radio (NR) system, UE cell switching or PSCell change is performed based on Layer 3 (L3) commands. Taking handover as an example, when the network side decides that the UE performs handover, the source cell initiates a handover preparation process to the target cell and obtains a handover command, which contains the configuration information of the target cell. The handover command is the Radio Resource Control (RRC) configuration information; the source cell directly sends the handover command obtained from the target cell to the UE. After receiving the handover command, the UE synchronizes to the target cell according to the configuration information in the handover command, initiates a random access process, accesses the target cell, and completes the handover process.
[0438] Furthermore, R16 in the NR system introduced conditional handover (CHO) and conditional PSCell change (CPC). The principles of CHO and CPC are similar, namely: the network pre-configures at least one pre-configured target cell and related execution conditions to the UE through RRC signaling; after the UE receives the CHO and / or CPC configuration information, it performs measurement and evaluation according to the execution conditions configured on the network side; when the UE finds that the configured execution conditions are met, it determines the cell as the target cell, accesses the target cell, and completes the handover or PSCell change process. After the UE completes the handover or the PSCell change, the stored CHO and / or CPC configuration will be released. The execution conditions of the current CHO and / or CPAC configuration are execution conditions based on the L3 measurement results.
[0439] 2. Special Cell (SpCell) and Secondary Cell (SCell);
[0440] The network can configure dual connectivity and carrier aggregation (CA) for the UE to increase the UE's transmission bandwidth and improve throughput. If the network configures dual connectivity for the UE, it needs to configure a master cell group (MCG) and a secondary cell group (SCG) for the UE; wherein, the MCG and SCG can each contain at least one service cell, and the at least one service cell contains at least an SpCell; specifically, the SpCell in the MCG is called the primary cell (PCell); the SpCell in the SCG is called the primary SCG cell (PSCell), and the remaining cells are secondary cells (SCell). The UE needs to perform actions such as wireless link monitoring on the SpCell.
[0441] 3. About R18 L1L2 Mob (i.e. LTM);
[0442] The R18 cell change mechanism triggered by L1L2 commands includes: the network pre-configures the configuration information of candidate cells to the UE and configures the UE with relevant candidate cell measurement reference signal information; the UE performs L1 measurements of neighboring cells based on the configured candidate cell measurement reference signal and reports the measurement results to the network. The source cell makes a cell change decision based on the L1 measurement results of the candidate cells reported by the UE; and notifies the UE to perform the cell change by sending a MAC CE (specifically, an LTM MAC CE) that triggers the UE to perform the cell change. After receiving this LTM MAC CE, the UE applies the candidate cell configuration information specified in the MAC CE and accesses the target cell. A MAC CE represents a Medium Access Control (MAC) Control Element. Before sending the LTM MAC CE command, the source cell may also, based on, for example, the L1 measurement results, trigger a Physical Downlink Control Channel (PDCCH) order (command) to notify the UE to obtain the TA value of the candidate cell, without limitation here.
[0443] Based on the foregoing, embodiments of the present disclosure provide a cell management method, apparatus, and device to address the problem in related technologies that cannot support a solution for a UE to determine whether to perform cell management. The method, apparatus, and device are based on the same patent application. Since the principles of the method, apparatus, and device are similar, their implementation can refer to each other, and any repetitions will not be repeated.
[0444] The cell management method provided in the embodiment of the present disclosure is applied to a terminal, as shown in FIG2 , and includes:
[0445] Step 21: Get execution conditions;
[0446] Step 22: Evaluate whether there is at least one target candidate cell that meets the execution condition;
[0447] Step 23: If at least one target candidate cell exists, determine the target cell and / or determine the target beam of the target cell; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0448] Among them, the obtaining of the execution condition may include: receiving the execution condition sent by the network device, but is not limited thereto. Regarding the "beam-level execution condition based on the layer 1 measurement configuration", in the scenario where multiple beams are configured, the beam-level execution condition based on the layer 1 measurement configuration may be the execution condition used to evaluate the beam measurement result based on the L1 measurement; when only one beam is configured or multiple beams are not supported, the beam-level execution condition based on the layer 1 measurement configuration may be the execution condition used to evaluate the single beam measurement result based on the layer 1 measurement or the cell measurement result based on the layer 1 measurement, which is not limited here.
[0449] "Determining the target cell" may include determining the target cell's configuration information, or identification information of the target cell (e.g., cell identification, cell frequency, and / or cell PCI), or candidate cell identification information, etc., to identify the target cell, which is not limited here. A possible implementation of determining the "target cell" is to determine a target PCell cell, a target PSCell cell, or a target SpCell cell, which is not limited here.
[0450] The cell management method provided by the embodiment of the present disclosure obtains an execution condition; evaluates whether there is at least one target candidate cell that meets the execution condition; if there is at least one target candidate cell, determines the target cell, and / or determines the target beam of the target cell; wherein the execution condition is an execution condition at the beam level configured based on layer 1 measurement; and can support the UE to clarify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether or through which beam the TA of the target cell can be obtained, thereby supporting the implementation of a solution for the UE to decide whether to perform cell management. The cell management may include operations such as cell change, or TA management of the target cell (for example, determining that the TA of the target cell can be obtained, thereby triggering the TA calculation of the target cell, or requesting the network side to trigger the TA acquisition process of the target cell).
[0451] Wherein, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: when a first evaluation condition is met, determining that the candidate cell is a target candidate cell that meets the execution condition; wherein, the first evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is less than a first preset threshold and meets the first preset condition; or, the beam signal quality of the serving cell is less than or equal to the first preset threshold and meets the first preset condition; (2) the beam signal quality of the candidate cell is greater than a second preset threshold and meets the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the first preset condition. Second preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold (corresponding to the first preset deviation value described below) and satisfies the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and satisfies the third preset condition; (4) the beam signal quality of the serving cell is greater than a fourth preset threshold and satisfies the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and satisfies the fourth preset condition; (5) the beam signal quality of the candidate cell is less than a fifth preset threshold and satisfies the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and satisfies the fifth preset condition.
[0452] In this way, the candidate cells that meet the execution condition can be accurately determined. In combination with the above items (1)-(5), the first evaluation condition may specifically include at least one of the following:
[0453] 1) Within a first preset time, a first condition is met;
[0454] 2) The number of times the second condition is continuously satisfied is greater than the first preset number of times; or, the number of times the second condition is continuously satisfied is greater than or equal to the first preset number of times;
[0455] 3) Within the second preset time, the number of times the third condition is satisfied is greater than the second preset number; or, within the second preset time, the number of times the third condition is satisfied is greater than or equal to the second preset number;
[0456] 4) within the third preset time, the probability of satisfying the fourth condition is greater than the first preset probability; or, within the third preset time, the probability of satisfying the fourth condition is greater than or equal to the first preset probability;
[0457] 5) Within the first statistical number of times, the fifth condition is satisfied for a number greater than a third preset number of times; or, within the first statistical number of times, the fifth condition is satisfied for a number greater than or equal to the third preset number of times;
[0458] 6) within the second statistical number of times, the probability of satisfying the sixth condition is greater than the second preset probability; or, within the second statistical number of times, the probability of satisfying the sixth condition is greater than or equal to the second preset probability;
[0459] 7) Satisfy the seventh condition;
[0460] 8) Within the fourth preset time, the number of times the eighth condition is satisfied is less than the fourth preset number; or, within the fourth preset time, the number of times the eighth condition is satisfied is less than or equal to the fourth preset number;
[0461] 9) Within the fifth preset time, the probability of satisfying the ninth condition is less than the third preset probability; or, within the fifth preset time, the probability of satisfying the ninth condition is less than or equal to the third preset probability;
[0462] 10) Within the third statistical number of times, the number of times the tenth condition is satisfied is less than the fifth preset number of times; or, within the third statistical number of times, the number of times the tenth condition is satisfied is less than or equal to the fifth preset number of times;
[0463] 11) within the fourth statistical number of times, the probability of satisfying the eleventh condition is less than the fourth preset probability; or, within the fourth statistical number of times, the probability of satisfying the eleventh condition is less than or equal to the fourth preset probability;
[0464] The first target condition is the first condition, the second condition, the third condition, the fourth condition, the fifth condition, the sixth condition, the seventh condition, the eighth condition, the ninth condition, the tenth condition, or the eleventh condition, and the first target condition includes at least one of the following:
[0465] 12) A first subcondition, wherein the first subcondition is: serving cell beam signal quality + X1 < candidate cell beam signal quality - first preset deviation value + Y1; or, the first subcondition is: serving cell beam signal quality + X1 ≤ candidate cell beam signal quality - first preset deviation value + Y1; X1 is equal to 0 or is a first variable; Y1 is equal to 0 or is a second variable;
[0466] 13) The number of beams satisfying the first sub-condition is greater than the first preset number of beams, or the number of beams satisfying the first sub-condition is greater than or equal to the first preset number of beams;
[0467] 14) A second sub-condition, wherein the second sub-condition is: serving cell beam signal quality + X2 < first preset threshold + Y2, or the second sub-condition is: serving cell beam signal quality + X2 ≤ first preset threshold + Y2; X2 is equal to 0 or a third variable; Y2 is equal to 0 or a fourth variable;
[0468] 15) The number of beams satisfying the second sub-condition is greater than the second preset number of beams, or the number of beams satisfying the second sub-condition is greater than or equal to the second preset number of beams;
[0469] 16) A third subcondition: the third subcondition is: candidate cell beam signal quality + X3 > second preset threshold + Y3; or the third subcondition is: candidate cell beam signal quality + X3 ≥ second preset threshold + Y3; X3 is equal to 0 or is a fifth variable; Y3 is equal to 0 or is a sixth variable;
[0470] 17) The number of beams satisfying the third sub-condition is greater than the third preset number of beams, or the number of beams satisfying the third sub-condition is greater than or equal to the third preset number of beams;
[0471] 18) A fourth sub-condition: the fourth sub-condition is: serving cell beam signal quality + X4 > fourth preset threshold + Y4; or the fourth sub-condition is: serving cell beam signal quality + X4 ≥ fourth preset threshold + Y4; X4 is equal to 0 or is the seventh variable; Y4 is equal to 0 or is the eighth variable;
[0472] 19) The number of beams satisfying the fourth sub-condition is less than the fourth preset number of beams, or the number of beams satisfying the fourth sub-condition is less than or equal to the fourth preset number of beams;
[0473] 20) A fifth subcondition: the fifth subcondition is: candidate cell beam signal quality + X5 < fifth preset threshold + Y5, or the fifth subcondition is: candidate cell beam signal quality + X5 ≤ fifth preset threshold + Y5; X5 is equal to 0 or is the ninth variable; Y5 is equal to 0 or is the tenth variable;
[0474] 21) The number of beams satisfying the fifth sub-condition is less than the fifth preset number of beams, or the number of beams satisfying the fifth sub-condition is less than or equal to the fifth preset number of beams.
[0475] Specifically, the above item (1) may correspond to the above-mentioned first target condition including the second sub-condition, and satisfy at least one of the above-mentioned 1)-7) and 15). For example: the above item (1) corresponds to the above-mentioned first target condition including the second sub-condition, and satisfies the above-mentioned 1). In this case, the first preset condition may be used to indicate that the first sub-condition is satisfied within the first preset time, that is, the service cell beam signal quality is less than the first preset threshold and satisfies the first preset condition; or, the service cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; a possible implementation method is that within the first preset time, the service cell beam signal quality + X2 < the first preset threshold + Y2 or the service cell beam signal quality + X2 ≤ the first preset threshold + Y2; they are not elaborated here.
[0476] Among them, the above item (2) may correspond to the above first target condition including the third sub-condition and satisfying at least one of the above 1)-7) and 17); the above item (3) may correspond to the above first target condition including the first sub-condition and satisfying at least one of the above 1)-7) and 13); the above item (4) may correspond to the above first target condition including the fourth sub-condition and satisfying at least one of the above 7)-11) and 19); the above item (5) may correspond to the above first target condition including the fifth sub-condition and satisfying at least one of the above 7)-11) and 21); but it is not limited to this. It is hereby explained that the preset information involved above (such as the first preset time and the second preset time) may be the same or different, the variables (such as X1 and X2) may be the same or different, the conditions (such as the first condition and the second condition) may be the same or different, the candidate cells in the above items may be the same or different, and the candidate cells and the serving cells may be the same or different, which are not limited here.
[0477] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: when a second evaluation condition is met, determining that the candidate cell does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than a sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than a seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold (corresponding to the second preset deviation value described below) and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than a ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than a tenth preset threshold and meets the tenth preset condition.
[0478] In this way, the candidate cells that do not meet the execution condition can be accurately determined. In combination with the above items (1)-(5), the second evaluation condition may specifically include at least one of the following:
[0479] 1) The twelfth condition is continuously met within the sixth preset time;
[0480] 2) The number of times the thirteenth condition is continuously satisfied is greater than the sixth preset number of times; or, the number of times the thirteenth condition is continuously satisfied is greater than or equal to the sixth preset number of times;
[0481] 3) Within the seventh preset time, the number of times the fourteenth condition is satisfied is greater than the seventh preset number; or, within the seventh preset time, the number of times the fourteenth condition is satisfied is greater than or equal to the seventh preset number;
[0482] 4) within the eighth preset time, the probability of satisfying the fifteenth condition is greater than the fifth preset probability; or, within the eighth preset time, the probability of satisfying the fifteenth condition is greater than or equal to the fifth preset probability;
[0483] 5) within the fifth preset statistical number of times, the probability of satisfying the sixteenth condition is greater than the sixth preset probability; or, within the fifth preset statistical number of times, the probability of satisfying the sixteenth condition is greater than or equal to the sixth preset probability;
[0484] 6) Within the sixth preset statistical number of times, the number of times the seventeenth condition is satisfied is greater than the eighth preset number of times; or, within the sixth preset statistical number of times, the number of times the seventeenth condition is satisfied is greater than or equal to the eighth preset number of times;
[0485] 7) Satisfy the eighteenth condition;
[0486] 8) Within the ninth preset time, the number of times the nineteenth condition is satisfied is less than the ninth preset number; or, within the ninth preset time, the number of times the nineteenth condition is satisfied is less than or equal to the ninth preset number;
[0487] 9) Within the tenth preset time period, the probability of satisfying the twentieth condition is less than the seventh preset probability; or, within the tenth preset time period, the probability of satisfying the twentieth condition is less than or equal to the seventh preset probability;
[0488] 10) Within the seventh preset statistical number of times, the probability of satisfying the twenty-first condition is less than the eighth preset probability; or, within the seventh preset statistical number of times, the probability of satisfying the twenty-first condition is less than or equal to the eighth preset probability;
[0489] 11) Within the eighth preset statistical number of times, the number of times the twenty-second condition is satisfied is less than the tenth preset number of times; or, within the eighth preset statistical number of times, the number of times the twenty-second condition is satisfied is less than or equal to the tenth preset number of times;
[0490] The second target condition is the twelfth condition, the thirteenth condition, the fourteenth condition, the fifteenth condition, the sixteenth condition, the seventeenth condition, the eighteenth condition, the nineteenth condition, the twentieth condition, the twenty-first condition, or the twenty-second condition, and the second target condition includes at least one of the following:
[0491] 12) A sixth subcondition: serving cell beam signal quality + X6 > candidate cell beam signal quality - second preset deviation + Y6; X6 is equal to 0 or is the eleventh variable; Y6 is equal to 0 or is the twelfth variable;
[0492] 13) The number of beams satisfying the sixth sub-condition is greater than the sixth preset number of beams; or, the number of beams satisfying the sixth sub-condition is greater than or equal to the sixth preset number of beams;
[0493] 14) A seventh subcondition, wherein the seventh subcondition is: serving cell beam signal quality + X7 > sixth preset threshold + Y7; X7 is equal to 0, or is the thirteenth variable; and Y7 is equal to 0, or is the fourteenth variable.
[0494] 15) The number of beams satisfying the seventh sub-condition is greater than the seventh preset number of beams; or, the number of beams satisfying the seventh sub-condition is greater than or equal to the seventh preset number of beams;
[0495] 16) An eighth subcondition: candidate cell beam signal quality + X8 < seventh preset threshold + Y8; X8 is equal to 0, or is the fifteenth variable; Y8 is equal to 0, or is the sixteenth variable;
[0496] 17) The number of beams satisfying the eighth sub-condition is greater than the eighth preset number of beams; or, the number of beams satisfying the eighth sub-condition is greater than or equal to the eighth preset number of beams;
[0497] 18) A ninth sub-condition: serving cell beam signal quality + X9 < ninth preset threshold + Y9; X9 is equal to 0 or is the seventeenth variable; Y9 is equal to 0 or is the eighteenth variable;
[0498] 19) The number of beams satisfying the ninth sub-condition is less than the ninth preset number of beams; or, the number of beams satisfying the ninth sub-condition is less than or equal to the ninth preset number of beams;
[0499] 20) A tenth sub-condition, wherein: candidate cell beam signal quality + X10 > tenth preset threshold + Y10; X10 is equal to 0, or is the nineteenth variable; Y10 is equal to 0, or is the twentieth variable;
[0500] 21) The number of beams satisfying the tenth sub-condition is less than the tenth preset number of beams; or, the number of beams satisfying the tenth sub-condition is less than or equal to the tenth preset number of beams.
[0501] Specifically, the above item (1) may correspond to the above second target condition including the seventh sub-condition, and satisfy at least one of the above 1)-7) and 15). For example: the above item (1) corresponds to the above second target condition including the seventh sub-condition, and satisfies the above 2). In this case, the first preset condition may be used to indicate that the number of times the seventh sub-condition is continuously satisfied is greater than the sixth preset number; or, the number of times the seventh sub-condition is continuously satisfied is greater than or equal to the sixth preset number; that is, the service cell beam signal quality is greater than the sixth preset threshold and satisfies the sixth preset condition. A possible implementation method is that the number of times the service cell beam signal quality + X7 > the sixth preset threshold + Y7 is continuously satisfied is greater than the sixth preset number, or, the number of times the service cell beam signal quality + X7 > the sixth preset threshold + Y7 is continuously satisfied is greater than or equal to the sixth preset number; they are not elaborated here.
[0502] Among them, the above item (2) may correspond to the above second target condition including the eighth sub-condition and satisfy at least one of the above 1)-7) and 17); the above item (3) may correspond to the above second target condition including the sixth sub-condition and satisfy at least one of the above 1)-7) and 13); the above item (4) may correspond to the above second target condition including the ninth sub-condition and satisfy at least one of the above 7)-11) and 19); the above item (5) may correspond to the above second target condition including the tenth sub-condition and satisfy at least one of the above 7)-11) and 21); but it is not limited to this. It is explained here that the preset information involved above (such as the sixth preset time and the seventh preset time) may be the same or different, the variables (such as X6 and X7) may be the same or different, the conditions (such as the twelfth condition and the thirteenth condition) may be the same or different, the candidate cells in the above items may be the same or different, and the candidate cells and the serving cells may be the same or different; in addition, the conditions involved in the second evaluation condition (such as the second condition) and the conditions involved in the first evaluation condition (such as the thirteenth condition) may be the same or different, and the preset parameters of the second evaluation condition and the first evaluation condition (such as the first preset time and the sixth preset time) may also be the same or different, and are not limited here.
[0503] Furthermore, the cell management method also includes: obtaining configuration information; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0504] In this way, configuration information can be accurately obtained, supporting the terminal to accurately determine the above-mentioned conditions. For example, the preset time may include the above-mentioned first preset time, the preset threshold may include the above-mentioned first preset threshold, and other parameters are similar. Among them, the cell measurement configuration information may include at least one of: measurement cell configuration; measurement frequency; measurement physical cell identifier (PCI); synchronization signal block (SSB) configuration information; and obtaining the configuration information may include, but is not limited to, receiving configuration information sent by a network device.
[0505] The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained by filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained by filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained by filtering the first beams of the first number contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any beam contained in the cell; (6) the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0506] This can support expressing the cell beam signal quality in multiple ways. Wherein, n can be an integer greater than or equal to 1, and m can be an integer greater than or equal to 1. Wherein, n is a network configuration or protocol provision, and m is a network configuration or protocol provision; wherein the cell beam signal quality is an L1 measurement quantity, specifically, it can be a measurement quantity such as L1 Reference Signal Receiving Power (RSRP), L1 Reference Signal Receiving Quality (RSRQ), or L1 Signal to Interference plus Noise Ratio (SINR). The specific measurement quantity can be a network configuration or protocol provision, which is not limited here.
[0507] In an embodiment of the present disclosure, the determination of the target cell includes: determining the target cell from the at least one target candidate cell according to a first method; wherein the first method includes at least one of the following: selecting the target cell based on the terminal; selecting the cell where the beam with the highest signal quality is located as the target cell; selecting the cell with the largest number of beams that meets the execution conditions as the target cell; selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell; selecting at least one of the target candidate cells as the target cell; selecting the cell with the best cell-level measurement result based on layer 3 measurement as the target cell.
[0508] In this way, the target cell can be determined. Among them, the "cell with the best cell-level measurement results" may include: the cell with the best measurement results in measurement quantities such as Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR). Specifically, it may be that the protocol stipulates that the measurement results of the cell are determined based on a certain measurement quantity (such as RSRP), or based on the network configuration (such as a measurement quantity based on the network configuration (such as RSRQ)), but it is not limited to this. Among them, when there is only one target candidate cell, the UE can determine that the target candidate cell is the target cell. Among them, "selecting at least one of the target candidate cells as the target cell" may include: all target candidate cells that meet the execution conditions are used as target cells (for example, TA scenarios can be used, but there is no limitation).
[0509] Wherein, the target beam of the target cell is determined, including: determining the target beam of the target cell according to the second method; wherein, the second method includes at least one of the following: selecting the beam with the best signal quality in the target cell as the target beam; among the beams contained in the target cell, selecting the beam with the best signal quality obtained after filtering according to the fifth preset rule within the first preset time as the target beam; among the beams contained in the target cell, selecting the beam with the best signal quality obtained after filtering according to the sixth preset rule within the first preset number of times as the target beam; among the beams contained in the target cell, selecting the beam that meets the execution condition and reaches the terminal first The beam is a target beam; among the beams contained in the target cell, the target beam is selected based on the terminal implementation; among the beams contained in the target cell, the beam that meets the execution condition and is associated with the pre-configured uplink resource is selected as the target beam (the pre-configured uplink resource can be used by the terminal to send the first uplink data); among the beams contained in the target cell, the beam that meets the execution condition and is associated with the pre-configured uplink resource (the pre-configured uplink resource can be used by the terminal to send the first uplink data) and reaches the terminal first is selected as the target beam; among the beams contained in the target cell, the beam that meets the execution condition is selected as the target beam.
[0510] In this way, the target beam of the target cell can be determined. Among them, "best signal quality" can specifically include: the best measurement result among the measurement quantities such as RSRP, RSRQ, SINR of Layer 1. Specifically, it can be that the protocol stipulates that the signal quality is determined based on a certain measurement quantity (such as RSRP), or based on the network configuration (such as a measurement quantity based on the network configuration (such as RSRQ)), but it is not limited to this. Among them, when the target cell has only one beam, or only one beam meets the execution condition (for example, greater than a preset threshold within a preset time), the UE can determine that the beam is the target beam.
[0511] Furthermore, the cell management method also includes: adopting a third method to manage the target cell; wherein the third method includes at least one of the following: triggering a random access process to the target cell; sending uplink data on pre-configured uplink resources; monitoring the physical downlink control channel PDCCH in the target cell; when the valid timing advance TA of the target cell is obtained, sending uplink data on the pre-configured uplink resources; when the valid TA of the target cell is obtained, monitoring the PDCCH according to the target transmission configuration indication TCI or the target beam index; when the valid TA of the target cell is not obtained, triggering a random access process to the target cell; before accessing the target cell, sending a first indication information to the network device, the first indication information is used to indicate the target cell and / or target beam information; when the valid TA of the target cell is obtained, sending a second indication information to the network device before accessing the target cell, the second indication information is used to indicate the target cell and / or target beam information; determining to obtain the TA of the target cell.
[0512] In this way, the target cell can be managed. Regarding "determining to obtain the TA of the target cell", it can be understood as: determining that the TA of the target cell or the target beam of the target cell needs to be obtained, that is, determining that the relevant operations of obtaining the TA of the target cell or the target beam of the target cell need to be performed, such as determining that the TA of the target cell can be obtained, thereby triggering the TA calculation of the target cell, or requesting the network side to trigger the target cell TA acquisition process, but not limited to this. The target beam information is used to indicate the target beam, and one possible implementation method is: indicating the reference signal information associated with the target beam (such as SSB index, or channel state information reference signal (Channel State Information-reference signal, CSI-RS) index information), or indicating the target transmission configuration indicator (Transmission Configuration Indicator, TCI), where the target TCI may be a joint TCI (used to indicate uplink transmission and downlink transmission at the same time, or it can only indicate downlink TCI, or only indicate uplink TCI), or include uplink TCI and downlink TCI at the same time, or indicate TCI of different channels respectively, without limitation. One implementation method of the above specific behavior (the operation involved in the third method) may be: the UE performs an operation on the target beam of the target cell (that is, the operation is associated with the target beam), for example, "sending uplink data on the pre-configured uplink resources", and one implementation method is: the pre-configured uplink resources are the uplink resources of the target beam associated with the target cell; for example, one implementation method of "monitoring the physical downlink control channel PDCCH in the target cell" is: monitoring the PDCCH of the target beam associated with the target cell, but is not limited to this.
[0513] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0514] This can support diverse configurations. Specifically, it may include: all configuration parameters are configured separately for different cells; or, all cells are configured together; or, all configuration parameters are configured separately for different cell groups, and cells within the cell group share the configuration; or, some configuration parameters are configured separately for different cells, and some configuration parameters are configured together for all cells (for example, preset thresholds are configured separately for different cells, i.e., each cell is individually configured with a preset threshold, while preset time is configured together for all cells, i.e., a unique preset time is configured for all cells); or, some configuration parameters are configured separately for different cells, while some configuration parameters are applied together for cell groups, and some parameters are configured together for all cells, for example: preset thresholds are configured separately for different cells, i.e., each cell is individually configured with a preset threshold, while preset time is configured together for all cells, i.e., a unique preset time is configured for all cells, preset probability 1 is applied to cell group 1, and preset probability 2 is applied to cell group 2, wherein cell group 1 includes at least one cell and cell group 2 includes at least one cell, and there is no limitation on this.
[0515] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: determining at least one candidate cell to be evaluated; determining whether there is at least one target candidate cell that meets the execution condition from the at least one candidate cell to be evaluated; wherein the candidate cell to be evaluated includes at least one of the following: a candidate cell for which the terminal has acquired a valid TA; a candidate cell for which pre-configured uplink resources are set for the terminal to send the first uplink data; a candidate cell for evaluation indicated by network configuration indication information; all candidate cells configured by the network; and all candidate cells associated with the execution condition.
[0516] In this way, the target candidate cell can be accurately determined. A possible implementation of "the network configuration indication information indicates the candidate cells to be evaluated" includes: the network instructs the UE via signaling which candidate cells can be evaluated, or carries indication information to instruct the UE whether to perform candidate cell evaluation; but is not limited thereto.
[0517] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: evaluating whether there is at least one target candidate cell that meets the execution condition according to the fourth method; wherein the fourth method includes at least one of the following: the media access control MAC entity of the terminal evaluates according to the information reported by the physical layer of the terminal; the physical layer of the terminal evaluates; the radio resource control RRC layer of the terminal evaluates according to the information reported by the bottom layer of the terminal.
[0518] Specifically, (1) a possible implementation manner of the UE evaluating the candidate cell is as follows: the MAC layer entity evaluates according to the information reported by the physical layer, specifically for example, the physical layer performs L1 measurement, and determines whether the condition is met according to the configured preset threshold, for example, determines whether the L1 measurement result of the candidate cell is greater than the preset threshold, reports indication information to the MAC layer when the condition is met, and / or reports to the MAC layer when the condition is not met, and the MAC layer evaluates according to the indication information of the physical layer; or, the physical layer reports the measurement result to the MAC layer, and the MAC layer evaluates based on the measurement result reported by the physical layer (for example, determines whether the indication information that the condition is met is continuously reported within a preset time), the MAC layer determines whether the candidate cell meets the execution condition, and decides on the cell management, or notifies the RRC to decide on the cell management; or, the MAC layer evaluates based on the L1 measurement result, determines whether the candidate cell meets the execution condition, and decides (2) Another implementation method for UE to evaluate candidate cells is: the physical layer performs evaluation, that is, the physical layer determines whether the candidate cell meets the execution conditions according to the execution conditions, and makes a decision on cell management, or notifies the upper layer such as MAC or RRC to make a decision on cell management; (3) Another implementation method for UE to evaluate candidate cells is: the radio resource control RRC layer performs evaluation based on the information reported by the lower layer, and the RRC layer performs evaluation based on the information reported by the lower layer to make a decision on cell management, specifically: RRC receives the measurement results of the candidate cell from the lower layer (such as the physical layer or MAC layer), or the indication information of whether the candidate cell meets the conditions, and thus performs evaluation; specifically, for example, it determines whether the indication information of the candidate cell meeting the conditions reported by the lower layer is continuously received within a preset time, and based on this, the RRC layer determines whether the candidate cell meets the execution conditions and makes a decision on cell management. The bottom layer performs L1 measurement and determines whether the conditions are met based on the configured preset threshold. For example, it determines whether the L1 measurement result of the candidate cell is greater than the preset threshold. When the conditions are met, it reports the indication information to the RRC layer. Alternatively, the RRC layer evaluates the L1 measurement result to determine whether the candidate cell meets the execution conditions and makes decisions on cell management.
[0519] The present disclosure also provides a cell management method, which is applied to a network device, as shown in FIG3 , and includes:
[0520] Step 31: Send execution conditions; wherein the execution conditions are beam-level execution conditions based on layer 1 measurement configuration.
[0521] Among them, the sending execution condition may include: sending the execution condition to the terminal, but is not limited to this. Regarding the "beam-level execution condition based on layer 1 measurement configuration", in the scenario where multiple beams are configured, the beam-level execution condition based on layer 1 measurement configuration may be the execution condition used to evaluate the beam measurement result based on L1 measurement; when only one beam is configured or multiple beams are not supported, the beam-level execution condition based on layer 1 measurement configuration may be the execution condition used to evaluate the single beam measurement result based on layer 1 measurement or the cell measurement result based on layer 1 measurement, which is not limited here.
[0522] The cell management method provided by the embodiment of the present disclosure sends an execution condition; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration; it can support the UE to clearly identify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether to obtain the TA of the target cell or through which beam to obtain it, thereby supporting the UE to decide whether to perform cell management. The cell management may include operations such as cell change or TA management of the target cell (for example, determining that the TA of the target cell can be obtained, thereby triggering the TA calculation of the target cell, or requesting the network side to trigger the TA acquisition process of the target cell).
[0523] Furthermore, the cell management method further includes: sending a first evaluation condition to the terminal; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; wherein the first evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is less than the first preset threshold and meets the first preset condition; or, the beam signal quality of the serving cell is less than or equal to the first preset threshold and meets the first preset condition; (2) the beam signal quality of the candidate cell is greater than the second preset threshold and meets the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition; (3) the candidate cell The difference between the beam signal quality of the cell and the beam signal quality of the serving cell is at least greater than the third preset threshold and meets the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and meets the third preset condition; (4) the beam signal quality of the serving cell is greater than the fourth preset threshold and meets the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and meets the fourth preset condition; (5) the beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0524] This can support the terminal to accurately determine the candidate cells that meet the execution condition.
[0525] In an embodiment of the present disclosure, the cell management method further includes: sending a second evaluation condition to the terminal; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than the sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than the seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than the eighth preset threshold and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than the ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than the tenth preset threshold and meets the tenth preset condition.
[0526] This can support the terminal to accurately determine the candidate cells that do not meet the execution condition.
[0527] Furthermore, the cell management method also includes: sending configuration information; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0528] This can support the terminal to accurately obtain configuration information and further accurately determine the above-mentioned conditions. For example, the preset time may include the above-mentioned first preset time, the preset threshold may include the above-mentioned first preset threshold, and other parameters are similar. Among them, the cell measurement configuration information may include: at least one of: measurement cell configuration; measurement frequency; measurement physical cell identifier PCI; synchronization signal block (Synchronization Signal / PBCH Block, SSB) configuration information; and the sending of configuration information may include: sending the configuration information to the terminal, but is not limited to this.
[0529] The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained by filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained by filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained by filtering the first beams of the first number contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any beam contained in the cell; (6) the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0530] This can support expressing the cell beam signal quality in multiple ways. Wherein, n can be an integer greater than or equal to 1, and m can be an integer greater than or equal to 1. Wherein, n is a network configuration or protocol provision, and m is a network configuration or protocol provision; wherein the cell beam signal quality is an L1 measurement quantity, specifically, it can be a measurement quantity such as L1 Reference Signal Receiving Power (RSRP), L1 Reference Signal Receiving Quality (RSRQ), or L1 Signal to Interference plus Noise Ratio (SINR). The specific measurement quantity can be a network configuration or protocol provision, which is not limited here.
[0531] Furthermore, the cell management method also includes at least one of the following: a first indication message sent by the receiving terminal before accessing the target cell, the first indication message being used to indicate the target cell and / or target beam information; and a second indication message sent by the receiving terminal before accessing the target cell when the valid TA of the target cell is obtained, the second indication message being used to indicate the target cell and / or target beam information.
[0532] This can support the terminal to accurately manage the target cell. The target beam information is used to indicate the target beam. One possible implementation method is to indicate the reference signal information associated with the target beam (such as SSB index, or CSI-RS index information), or to indicate the target TCI, where the target TCI may be a joint TCI (used to indicate uplink transmission and downlink transmission at the same time, or it may only indicate downlink TCI, or only indicate uplink TCI), or include uplink TCI and downlink TCI at the same time, or indicate TCI of different channels respectively, without limitation.
[0533] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0534] This can support diverse configurations. Specifically, it may include: all configuration parameters are configured separately for different cells; or, all cells are configured together; or, all configuration parameters are configured separately for different cell groups, and cells within the cell group share the configuration; or, some configuration parameters are configured separately for different cells, and some configuration parameters are configured together for all cells (for example, preset thresholds are configured separately for different cells, i.e., each cell is individually configured with a preset threshold, while preset time is configured together for all cells, i.e., a unique preset time is configured for all cells); or, some configuration parameters are configured separately for different cells, while some configuration parameters are applied together for cell groups, and some parameters are configured together for all cells, for example: preset thresholds are configured separately for different cells, i.e., each cell is individually configured with a preset threshold, while preset time is configured together for all cells, i.e., a unique preset time is configured for all cells, preset probability 1 is applied to cell group 1, and preset probability 2 is applied to cell group 2, wherein cell group 1 includes at least one cell and cell group 2 includes at least one cell, and there is no limitation on this.
[0535] Furthermore, the cell management method also includes at least one of the following: sending network configuration indication information to the terminal, the network configuration indication information is used to indicate the candidate cell to be evaluated; configuring the candidate cell to the terminal; and sending the candidate cell configuration associated with the execution condition to the terminal.
[0536] This allows the terminal to accurately determine the target candidate cell. Specifically, one possible implementation of "sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate the candidate cells to be evaluated" includes: the network instructing the UE via signaling which candidate cells can be evaluated, or carrying indication information to indicate whether the UE should perform candidate cell evaluation; but this is not limited to this.
[0537] It is noted that the relevant contents on the terminal side and the network device side can refer to each other, and the repeated parts will not be repeated. In addition, the preset rules involved above (such as the first rule) can include: obtaining average values for sorting to support filtering, or calculating and sorting according to a certain linear rule (preset linear rule) to support filtering, but are not limited to these, and any other rules that can support filtering can be used.
[0538] The cell management method provided in the embodiment of the present disclosure is described below with examples.
[0539] To address the above technical issues, embodiments of the present disclosure provide a cell management method, which can be specifically implemented as a method for determining cell management. This solution primarily involves: the network side configuring beam-level execution conditions based on L1 measurements, and the UE evaluating whether the execution conditions are met to determine whether to perform cell management. Specifically, this solution may include the following:
[0540] Part 1, UE side:
[0541] 1) The UE receives the execution conditions and associated candidate cell configurations configured by the network, and evaluates whether the candidate cells meet the execution conditions (corresponding to the aforementioned acquisition of the execution conditions (which may specifically include: receiving the execution conditions sent by the network device); and evaluating whether there is at least one target candidate cell that meets the execution conditions). The execution conditions are beam-level execution conditions based on the L1 measurement configuration.
[0542] When at least one candidate cell meets the execution conditions, the UE determines the target cell, and / or determines the target beam for accessing the target cell (target beam information such as beam index, or a transmission configuration indicator (TCI; applied to downlink, or applied to both uplink and downlink), or DL / UL TCI (uplink and downlink TCI), that is, uplink and downlink are configured separately, or different channels are configured with different TCIs, without limitation); corresponding to the above, if there is at least one target candidate cell, the target cell is determined, and / or the target beam of the target cell is determined.
[0543] First of all, it is explained that the specific content of the first condition in each of the following execution conditions may be the same or different, and the preset information involved may also be the same or different (for example, the values of the first preset number of times involved in the following multiple items may be the same or different), and the preset information involved in the following 2) and 3) may be the same or different (for example, the values of the first preset number and the second preset number involved may be the same or different), which is not limited here.
[0544] 2) Based on 1), the UE considers the candidate cell to meet the execution condition when at least one of the following conditions is met:
[0545] -The first condition is met within the first preset time;
[0546] - the number of times the first condition is continuously satisfied is greater than (or greater than or equal to, i.e., > or ≥) a first preset number, where "greater than or equal to" can also be expressed as greater than or equal to, and is not limited here; corresponding to the number of times the second condition is continuously satisfied being greater than the first preset number; or, alternatively, the number of times the second condition is continuously satisfied being greater than or equal to the first preset number;
[0547] - within the first preset time, the number of times the first condition is satisfied is greater than (or greater than or equal to) the first preset number; corresponding to the above, within the second preset time, the number of times the third condition is satisfied is greater than the second preset number; or, within the second preset time, the number of times the third condition is satisfied is greater than or equal to the second preset number;
[0548] - within the first preset time, the probability of satisfying the first condition is greater than (or greater than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the fourth condition within the third preset time being greater than the first preset probability; or, within the third preset time, the probability of satisfying the fourth condition is greater than or equal to the first preset probability;
[0549] - Within the first preset number of statistics, the number of times the first condition is satisfied is greater than (or greater than or equal to) the first preset number of times; corresponding to the above situation where within the first number of statistics, the number of times the fifth condition is satisfied is greater than the third preset number of times; or, within the first number of statistics, the number of times the fifth condition is satisfied is greater than or equal to the third preset number of times;
[0550] - Within the first preset statistical number of times, the probability of satisfying the first condition is greater than (or greater than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the sixth condition within the second statistical number of times being greater than the second preset probability; or, within the second statistical number of times, the probability of satisfying the sixth condition is greater than or equal to the second preset probability;
[0551] -Satisfy the first condition; corresponds to satisfying the seventh condition above;
[0552] - Within the first preset time, the number of times the first condition is satisfied is less than (or less than or equal to, i.e., < or ≤) the first preset number of times, where "less than or equal to" can also be expressed as less than or equal to, and is not limited here; corresponding to the above-mentioned situation where within the fourth preset time, the number of times the eighth condition is satisfied is less than the fourth preset number of times; or, within the fourth preset time, the number of times the eighth condition is satisfied is less than or equal to the fourth preset number of times;
[0553] - within the first preset time, the probability of satisfying the first condition is less than (or less than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the ninth condition within the fifth preset time being less than the third preset probability; or, within the fifth preset time, the probability of satisfying the ninth condition is less than or equal to the third preset probability;
[0554] - Within the first preset number of statistics, the number of times the first condition is satisfied is less than (or less than or equal to) the first preset number of times; corresponding to the above situation where within the third number of statistics, the number of times the tenth condition is satisfied is less than the fifth preset number of times; or, within the third number of statistics, the number of times the tenth condition is satisfied is less than or equal to the fifth preset number of times;
[0555] -Within the first preset statistical number of times, the probability of satisfying the first condition is less than (or less than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the eleventh condition within the fourth statistical number of times is less than the fourth preset probability; or, within the fourth statistical number of times, the probability of satisfying the eleventh condition is less than or equal to the fourth preset probability.
[0556] The first condition includes at least one of the following:
[0557] Serving cell beam signal quality + X < (or ≤) the beam signal quality of the neighboring cell (i.e., the candidate cell) - the first preset deviation value + Y; corresponding to the above-mentioned first sub-condition, the first sub-condition is: serving cell beam signal quality + X1 < the beam signal quality of the candidate cell - the first preset deviation value + Y1, or, the first sub-condition is: serving cell beam signal quality + X1 ≤ the beam signal quality of the candidate cell - the first preset deviation value + Y1; X1 is equal to 0, or is the first variable; Y1 is equal to 0, or is the second variable;
[0558] The number of beams satisfying (serving cell beam signal quality + X < (or ≤) neighboring cell beam signal quality - first preset deviation value + Y) is greater than (or greater than or equal to) the first preset number of beams; the number of beams satisfying the first sub-condition is greater than the first preset number of beams, or the number of beams satisfying the first sub-condition is greater than or equal to the first preset number of beams;
[0559] Serving cell beam signal quality + X < (or ≤) second preset threshold + Y; corresponding to the above second sub-condition, the second sub-condition is: serving cell beam signal quality + X2 < first preset threshold + Y2, or, the second sub-condition is: serving cell beam signal quality + X2 ≤ first preset threshold + Y2; X2 is equal to 0 or is a third variable; Y2 is equal to 0 or is a fourth variable;
[0560] Neighboring cell beam signal quality + X > (or ≥) the first preset threshold + Y; corresponding to the number of beams that satisfy the second sub-condition being greater than the second preset number of beams, or the number of beams that satisfy the second sub-condition being greater than or equal to the second preset number of beams;
[0561] The number of beams satisfying (neighboring cell beam signal quality + X > (or ≥) equal to the first preset threshold + Y) is greater than (or greater than or equal to) the first preset number of beams; corresponding to the third sub-condition above, the third sub-condition is: candidate cell beam signal quality + X3 > the second preset threshold + Y3, or the third sub-condition is: candidate cell beam signal quality + X3 ≥ the second preset threshold + Y3; X3 is equal to 0, or is the fifth variable; Y3 is equal to 0, or is the sixth variable;
[0562] The number of beams satisfying (serving cell beam signal quality + X < (or ≤) equal to the second preset threshold + Y) is greater than (or greater than or equal to) the first preset number of beams; the number of beams satisfying the third sub-condition is greater than the third preset number of beams, or the number of beams satisfying the third sub-condition is greater than or equal to the third preset number of beams;
[0563] Serving cell beam signal quality + X > (or ≥) the second preset threshold + Y; corresponding to the fourth sub-condition above, the fourth sub-condition is: serving cell beam signal quality + X4 > the fourth preset threshold + Y4, or the fourth sub-condition is: serving cell beam signal quality + X4 ≥ the fourth preset threshold + Y4; X4 is equal to 0 or is the seventh variable; Y4 is equal to 0 or is the eighth variable;
[0564] The number of beams satisfying (serving cell beam signal quality + X > (or ≥) second preset threshold + Y) is less than (or less than or equal to) the first preset number of beams; the number of beams satisfying the fourth sub-condition is less than the fourth preset number of beams, or the number of beams satisfying the fourth sub-condition is less than or equal to the fourth preset number of beams;
[0565] Neighboring cell beam signal quality + X < (or ≤) first preset threshold + Y; corresponding to the fifth sub-condition, the fifth sub-condition is: candidate cell beam signal quality + X5 < fifth preset threshold + Y5, or the fifth sub-condition is: candidate cell beam signal quality + X5 ≤ fifth preset threshold + Y5; X5 is equal to 0, or is the ninth variable; Y5 is equal to 0, or is the tenth variable;
[0566] The number of beams that satisfy (neighboring area beam signal quality + X < (or ≤) first preset threshold + Y) is less than (or less than or equal to) the first preset number of beams; the number of beams that satisfy the fifth sub-condition is less than the fifth preset number of beams, or the number of beams that satisfy the fifth sub-condition is less than or equal to the fifth preset number of beams.
[0567] It is noted that the above X and Y can be equal to 0, or other variables, which are not limited here.
[0568] 3) Based on 1), the UE considers that the candidate cell does not meet the execution condition when at least one of the following conditions is met:
[0569] - The second condition is continuously satisfied within the first preset time; corresponding to the twelfth condition being continuously satisfied within the sixth preset time;
[0570] - the number of times the second condition is continuously satisfied is greater than (or greater than or equal to) the first preset number of times; corresponding to the number of times the thirteenth condition is continuously satisfied is greater than the sixth preset number of times; or, the number of times the thirteenth condition is continuously satisfied is greater than or equal to the sixth preset number of times;
[0571] - Within the first preset time, the number of times the second condition is satisfied is greater than (or greater than or equal to) the first preset number; corresponding to the above situation where within the seventh preset time, the number of times the fourteenth condition is satisfied is greater than the seventh preset number; or, within the seventh preset time, the number of times the fourteenth condition is satisfied is greater than or equal to the seventh preset number;
[0572] - within the first preset time, the probability of satisfying the second condition is greater than (or greater than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the fifteenth condition within the eighth preset time being greater than the fifth preset probability; or, within the eighth preset time, the probability of satisfying the fifteenth condition is greater than or equal to the fifth preset probability;
[0573] - within the first preset statistical number of times, the probability of satisfying the second condition is greater than (or greater than or equal to) the first preset probability; corresponding to the above, within the fifth preset statistical number of times, the probability of satisfying the sixteenth condition is greater than the sixth preset probability; or, within the fifth preset statistical number of times, the probability of satisfying the sixteenth condition is greater than or equal to the sixth preset probability;
[0574] - Within the first preset statistical number of times, the number of times the second condition is satisfied is greater than (or greater than or equal to) the first preset number of times; corresponding to the above-mentioned number of times within the sixth preset statistical number of times, the number of times the seventeenth condition is satisfied is greater than the eighth preset number of times; or, within the sixth preset statistical number of times, the number of times the seventeenth condition is satisfied is greater than or equal to the eighth preset number of times;
[0575] -Satisfy the second condition; corresponds to satisfying the eighteenth condition above;
[0576] - within the first preset time, the number of times the second condition is satisfied is less than (or less than or equal to) the first preset number; corresponding to the above situation where within the ninth preset time, the number of times the nineteenth condition is satisfied is less than the ninth preset number; or, within the ninth preset time, the number of times the nineteenth condition is satisfied is less than or equal to the ninth preset number;
[0577] - within the first preset time, the probability of satisfying the second condition is less than (or less than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the twentieth condition within the tenth preset time being less than the seventh preset probability; or, within the tenth preset time, the probability of satisfying the twentieth condition being less than or equal to the seventh preset probability;
[0578] - within the first preset statistical number of times, the probability of satisfying the second condition is less than (or less than or equal to) the first preset probability; corresponding to the above-mentioned probability of satisfying the twenty-first condition within the seventh preset statistical number of times being less than the eighth preset probability; or, within the seventh preset statistical number of times, the probability of satisfying the twenty-first condition is less than or equal to the eighth preset probability;
[0579] -Within the first preset statistical number of times, the number of times the second condition is satisfied is less than (or less than or equal to) the first preset number of times; corresponding to the above-mentioned situation that within the eighth preset statistical number of times, the number of times the twenty-second condition is satisfied is less than the tenth preset number of times; or, within the eighth preset statistical number of times, the number of times the twenty-second condition is satisfied is less than or equal to the tenth preset number of times.
[0580] The second condition includes at least one of the following:
[0581] Serving cell beam signal quality + X > neighboring cell beam signal quality - first preset deviation value + Y; corresponding to the sixth sub-condition above, the sixth sub-condition is: serving cell beam signal quality + X6 > candidate cell beam signal quality - second preset deviation value + Y6; X6 is equal to 0, or is the eleventh variable; Y6 is equal to 0, or is the twelfth variable;
[0582] The number of beams satisfying (serving cell beam signal quality + X > neighboring cell beam signal quality - first preset deviation value + Y) is greater than (or greater than or equal to) the first preset number of beams; the number of beams satisfying the sixth sub-condition is greater than the sixth preset number of beams; or the number of beams satisfying the sixth sub-condition is greater than or equal to the sixth preset number of beams;
[0583] Serving cell beam signal quality + X > second preset threshold + Y; corresponding to the seventh sub-condition, the seventh sub-condition is: serving cell beam signal quality + X7 > sixth preset threshold + Y7; X7 is equal to 0, or is the thirteenth variable; Y7 is equal to 0, or is the fourteenth variable;
[0584] Neighboring cell beam signal quality + X < first preset threshold + Y; corresponding to the number of beams satisfying the seventh sub-condition being greater than the seventh preset number of beams; or, the number of beams satisfying the seventh sub-condition being greater than or equal to the seventh preset number of beams;
[0585] The number of beams satisfying (neighboring cell beam signal quality + X < first preset threshold + Y) is greater than (or greater than or equal to) the first preset number of beams. Corresponding to the eighth sub-condition, the eighth sub-condition is: candidate cell beam signal quality + X8 < seventh preset threshold + Y8; X8 is equal to 0, or is the fifteenth variable; Y8 is equal to 0, or is the sixteenth variable.
[0586] The number of beams satisfying (serving cell beam signal quality + X > second preset threshold + Y) is greater than (or greater than or equal to) the first preset number of beams; the number of beams satisfying the eighth sub-condition is greater than the eighth preset number of beams; or the number of beams satisfying the eighth sub-condition is greater than or equal to the eighth preset number of beams;
[0587] Serving cell beam signal quality + X < second preset threshold + Y; corresponding to the ninth sub-condition, the ninth sub-condition is: serving cell beam signal quality + X9 < ninth preset threshold + Y9; X9 is equal to 0, or is the seventeenth variable; Y9 is equal to 0, or is the eighteenth variable;
[0588] The number of beams satisfying (serving cell beam signal quality + X < second preset threshold + Y) is less than (or less than or equal to) the first preset number of beams; the number of beams satisfying the ninth sub-condition is less than the ninth preset number of beams; or the number of beams satisfying the ninth sub-condition is less than or equal to the ninth preset number of beams.
[0589] Neighboring cell beam signal quality + X > first preset threshold + Y; corresponding to the tenth sub-condition above, the tenth sub-condition is: candidate cell beam signal quality + X10 > tenth preset threshold + Y10; X10 is equal to 0, or is the nineteenth variable; Y10 is equal to 0, or is the twentieth variable;
[0590] The number of beams that satisfy (neighboring cell beam signal quality + X>first preset threshold + Y) is less than (or less than or equal to) the first preset number of beams; the number of beams that correspond to the above-mentioned tenth sub-condition is less than the tenth preset number of beams; or, the number of beams that satisfy the tenth sub-condition is less than or equal to the tenth preset number of beams.
[0591] It is noted that the above X and Y can be equal to 0, or other variables, which are not limited here.
[0592] 4) Based on any one of 1) to 3), before evaluating whether the candidate cell meets the execution condition, the method further includes receiving at least one of the following configurations:
[0593] - a first time threshold, which may correspond to the preset time mentioned above, such as the first preset time;
[0594] -L1 measurement threshold, which may correspond to the preset thresholds mentioned above, such as the first preset threshold and the second preset threshold;
[0595] -L1 measurement threshold deviation value, which may correspond to the preset deviation value mentioned above, such as the first preset deviation value;
[0596] -a first number of beams, which may correspond to the preset number of beams mentioned above, such as the first preset number of beams;
[0597] - a first count number, which may correspond to the preset number mentioned above, such as the first preset number;
[0598] - a first probability, which may correspond to the preset probability mentioned above, such as the first preset probability;
[0599] - a first statistical number, which may correspond to the preset statistical number (or statistical number) mentioned above, such as the first preset statistical number;
[0600] -Measurement cell configuration (corresponding to the above-mentioned cell measurement configuration information), such as the pre-configured cell ID (identifier), measurement frequency, measurement physical cell identifier (PCI), or synchronization signal block (Synchronization Signal / PBCH Block, SSB) configuration information (for example, SSB measurement time window, or SSB burst (cluster) bitmap).
[0601] 5) Based on 2) or 3), the cell beam signal quality includes at least one of the following:
[0602] -The signal quality of the best beam in the cell; corresponds to the signal quality of the beam with the best signal quality contained in the above cell;
[0603] - beam signal qualities of the n best preset beams after filtering according to a preset rule; corresponding to the beam signal qualities of the n beams contained in the above-mentioned cell after filtering according to the first preset rule; the n beams are the beams ranked in descending order of signal quality;
[0604] -Beam signal quality of beams above the preset threshold after filtering according to a preset rule; Beam signal quality corresponding to beams contained in the above cell with signal quality above the eleventh preset threshold after filtering according to a second preset rule;
[0605] - beam signal qualities of up to n best beams above a preset threshold, filtered according to a preset rule; beam signal qualities of a first number of first beams included in the cell, filtered according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is above a twelfth preset threshold;
[0606] -Signal quality of any beam; corresponding to the signal quality of any beam contained in the above cell;
[0607] -Beam signal quality obtained by filtering all beams of the cell measured by the UE according to a preset rule; corresponding to the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule;
[0608] -The signal quality of the worst beam in the cell is higher than a preset threshold; the signal quality of the beam with the worst signal quality among the second beams contained in the above cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
[0609] 6) Based on 1) or 2), when at least one candidate cell meets the execution condition, the UE determines the target cell (in a manner) including at least one of the following (corresponding to the first manner including at least one of the following):
[0610] Selecting a target cell based on the UE corresponds to selecting a target cell based on the terminal described above;
[0611] The UE selects the cell with the best beam signal quality as the target cell; corresponding to the above selection of the cell with the best beam signal quality as the target cell;
[0612] The UE selects the cell with the largest number of beams that meets the first condition as the target cell; corresponding to the above selection of the cell with the largest number of beams that meets the execution condition as the target cell;
[0613] The UE selects the cell with the highest quality after filtering the beam signal quality according to the preset rule as the target cell; corresponding to the above selection of the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell;
[0614] The UE determines at least one candidate cell that meets the execution condition as a target cell; corresponding to the above selection of at least one target candidate cell as the target cell;
[0615] The UE selects the cell with the best cell-level measurement result as the target cell, which corresponds to selecting the cell with the best cell-level measurement result based on layer 3 measurement as the target cell.
[0616] 7) Based on 1) or 2), the UE determines the target beam for accessing the target cell, including at least one of the following (corresponding to determining the target beam of the target cell according to the second manner; wherein the second manner includes at least one of the following):
[0617] The beam with the best beam signal quality is the target beam; corresponding to the above selection of the beam with the best signal quality in the target cell as the target beam;
[0618] The beam with the best quality after filtering according to the preset rule within the first preset time is selected as the target beam; corresponding to the above, among the beams included in the target cell, the beam with the best signal quality obtained after filtering according to the fifth preset rule within the first preset time is selected as the target beam;
[0619] The beam with the best quality after filtering according to a preset rule within a first preset number of times (e.g., sampling number of times, measurement number of times) is selected as the target beam; corresponding to the above, among the beams included in the target cell, the beam with the best signal quality obtained after filtering according to a sixth preset rule within the first preset number of times is selected as the target beam;
[0620] The beam that satisfies the first condition and arrives first (the beam that the UE receives or detects first in time); corresponding to the above, among the beams included in the target cell, the beam that satisfies the execution condition and arrives at the terminal first is selected as the target beam;
[0621] UE-based selection; corresponding to the above-mentioned selection of the target beam based on the terminal among the beams included in the target cell;
[0622] A beam that satisfies the first condition and is associated with pre-configured uplink resources; corresponding to the above, among the beams included in the target cell, a beam that satisfies the execution condition and is associated with pre-configured uplink resources is selected as the target beam;
[0623] The beam that satisfies the first condition, is associated with a pre-configured uplink resource, and arrives first; corresponding to the above, among the beams included in the target cell, the beam that satisfies the execution condition, is associated with a pre-configured uplink resource, and arrives first at the terminal is selected as the target beam;
[0624] A beam that satisfies the first condition; corresponding to the above-mentioned beams contained in the target cell, a beam that satisfies the execution condition is selected as the target beam.
[0625] 8) Based on 1), the manner in which the UE manages the target cell (corresponding to the third manner described above) includes at least one of the following:
[0626] - Triggering a random access procedure to the target cell; corresponding to the above-mentioned triggering a random access procedure to the target cell;
[0627] - The UE sends uplink data on the pre-configured uplink resources; corresponding to the above-mentioned sending of uplink data on the pre-configured uplink resources;
[0628] - Monitoring the Physical Downlink Control Channel (PDCCH) in the target cell; corresponding to monitoring the Physical Downlink Control Channel (PDCCH) in the target cell;
[0629] - If the UE has a valid timing advance (TA) of the target cell, the UE sends uplink data on the pre-configured uplink resources; corresponding to the above-mentioned sending of uplink data on the pre-configured uplink resources when the valid timing advance (TA) of the target cell is obtained;
[0630] - If the UE has a valid TA for the target cell, the UE monitors the PDCCH at the target TCI / Beamindex; corresponding to the above, when a valid TA for the target cell is obtained, the UE monitors the PDCCH according to the target transmission configuration indication TCI or target beam index;
[0631] - If the UE does not have a valid TA for the target cell, the UE triggers a random access procedure to the target cell; this corresponds to the above-mentioned triggering of a random access procedure to the target cell when a valid TA for the target cell is not obtained;
[0632] - Before accessing the target cell, the UE sends indication information to the source cell, indicating the source cell, target cell, and / or target SSB index and / or target TCI (uplink and downlink TCI or combined TCI); corresponding to the above, before accessing the target cell, the UE sends first indication information to the network device, where the first indication information is used to indicate the target cell and / or target beam information;
[0633] -If the UE has a valid TA of the target cell, the UE sends an indication message to the source cell before accessing the target cell, indicating the source cell, target cell and / or target SSB index and / or target TCI (uplink and downlink TCI or combined TCI); corresponding to the above-mentioned case where the valid TA of the target cell is obtained, before accessing the target cell, the UE sends a second indication message to the network device, and the second indication message is used to indicate the target cell and / or target beam information; and determines to obtain the TA of the target cell.
[0634] 9) Based on any of 1)-3), the above conditions can be per-cell configuration, for example, the serving cell and each candidate cell are configured separately, or publicly configured, that is, the candidate cell configuration is not distinguished; corresponding to the above execution conditions, each cell is configured separately, or all cells are configured together, or each cell group is configured separately.
[0635] 10) Based on 1), the candidate cell evaluated by the UE (corresponding to the candidate cell to be evaluated) has at least one of the following characteristics:
[0636] The UE obtains the valid TA of the candidate cell; corresponding to the candidate cell for which the terminal obtains the valid TA;
[0637] The candidate cell includes pre-configured uplink resources for the UE to send the first uplink data in the target cell (specific resources are prepared for the UE); corresponding to the candidate cell in which the pre-configured uplink resources for the terminal to send the first uplink data are set;
[0638] The network configuration indication information instructs the UE to evaluate; corresponding to the candidate cell to be evaluated indicated by the above network configuration indication information;
[0639] All candidate cells configured by the network; corresponding to all candidate cells configured by the above network;
[0640] All candidate cells associated with the execution condition; corresponding to all candidate cells associated with the execution condition.
[0641] Part 2, Network side:
[0642] The network side will send some information to the terminal to support the terminal to implement the above solution, such as sending at least one of the execution conditions, the first evaluation conditions and other information. For details, please refer to the above UE side content, which will not be repeated here.
[0643] The following is a specific example to illustrate this solution.
[0644] Example 1: Implementation process;
[0645] Step 1: Assuming that the current serving cell of the UE is cell0, the network sends signaling to configure the configuration information of the candidate cells cell1 and cell2 for the UE; wherein, the configuration information takes cell1 as an example and includes the configuration information of cell1, but is not limited to only including the configuration information of cell1. For example, it may include the configuration information of the cellgroup with cell1 as the SpCell. In addition, the candidate cells cell1 and / or cell2 may be candidate primary cells (PCell), primary cells of secondary cell groups (PSCell), special cells (SpCell), or secondary cells (SCell), which are not limited here; wherein, the serving cell cell0 may be a PCell, PSCell, SpCell or any serving cell. In addition, the signaling may also include the execution conditions configured by the network for the candidate cells.
[0646] Step 2: The UE receives the candidate cells and execution conditions configured by the network and evaluates whether the candidate cells meet the execution conditions. The evaluated candidate cells include at least one of the following:
[0647] a) All candidate cells configured by the network;
[0648] b) associate all candidate cells for execution conditions;
[0649] c) Candidate cells designated by the network, for example, the network notifies the UE through an identifier to evaluate cell 1 without evaluating cell 2;
[0650] d) The UE obtains a candidate cell with a valid TA, where the candidate cell with a valid TA obtained by the UE may be a candidate cell with a valid TA configured to the UE by the network through signaling, or a candidate cell with a valid TA obtained by the UE through UE-based calculation. For example, if the network configures cell1 and cell2 and associates both with execution conditions, but the UE obtains a valid TA for cell1 but not cell2, the UE evaluates whether cell1 meets the execution condition without evaluating cell2.
[0651] e) A candidate cell including pre-configured uplink resources, where the pre-configured uplink resources are used for the UE to send the first uplink data in the target cell.
[0652] Among them, the candidate cell to be evaluated has one of the above characteristics, for example, the candidate cell with characteristic b) can be the candidate cell evaluated by the UE; or, it has a combination of the above characteristics, for example, it can be the intersection of cells with characteristics b), d) and e) at the same time.
[0653] Step 3: The UE evaluates that at least one candidate cell meets the execution conditions, then:
[0654] The UE determines the target cell, such as cell 1, or
[0655] The UE determines the target cell and target beam.
[0656] Correspondingly, proceed to step 4-1 and / or step 4-2:
[0657] Step 4-1: The UE accesses the target cell, where the method for accessing the target cell (corresponding to the third method above) includes any one of the following:
[0658] Method 1: The UE triggers a random access procedure to access the target cell. One possible implementation method is that the UE triggers a random access procedure on the target beam of the target cell.
[0659] Mode 2: The UE sends uplink data on the pre-configured uplink resources, where the selected uplink resources are optionally uplink resources associated with the target beam.
[0660] Method 3: monitoring PDCCH in the target cell, optionally monitoring PDCCH occasion associated with the target beam;
[0661] Method 4: Determine whether there is a valid TA for the target cell. If yes, execute according to Method 2 or Method 3; otherwise, execute according to Method 1.
[0662] In some embodiments, another implementation is that before step 4-1, that is, before the UE accesses the target cell, the UE performs step 4-0: sending indication information to the source cell, which is cell0 in this embodiment, to notify the source cell cell0 of information about the target cell to which the UE is accessing, where the information is:
[0663] Target cell (information), for example, cell1;
[0664] Or, target cell and / or target beam information, where the target beam information is, for example, the SSB index associated with accessing the target cell, or the target TCI used (uplink TCI and / or downlink TCI, or one TCI, applied to the downlink, or applied to both the uplink and downlink simultaneously);
[0665] In some embodiments, before the UE executes step 4-0, it determines whether there is a valid TA for the target cell. If there is a valid TA for the target cell, it then executes step 4-0, but this is not limiting.
[0666] Step Four-2: The UE determines that the target cell needs to obtain a TA (corresponding to the above third method). For example, if the UE determines that cell1 meets the execution condition, the UE determines that it needs to obtain the TA of cell1, and then needs to perform the relevant operations for obtaining the TA of cell1; or, if the UE determines that cell1 meets the execution condition and simultaneously determines the target beam (for example, SSB1, where the beam can be distinguished by the SSB), the UE determines that it needs to obtain the TA associated with cell1 SSB1, or determines that it needs to obtain the TA of cell1 through SSB1 of cell1, and then performs the relevant operations for obtaining the TA of cell1. Among them, the relevant operations may include: triggering the TA acquisition process, or requesting the network to trigger the TA acquisition process.
[0667] Among them, the above step Four-1 and step Four-2 are independent and parallel steps.
[0668] Embodiment 2: Execution conditions (including entry conditions, execution condition entry conditions, departure conditions, execution condition departure conditions);
[0669] Embodiment 2-1: Entry condition (corresponding to the above first target condition);
[0670] The UE evaluates the first condition, where the first condition may include at least one of the following:
[0671] 1) The beam signal quality of the serving cell + X < (or ≤) the beam signal quality of the neighboring cell - the first preset deviation value + Y;
[0672] That is, the beam signal quality of the serving cell is less than (or less than or equal to) a certain deviation value of the beam signal quality of the neighboring cell (that is, the beam signal quality of the serving cell is less than (or less than or equal to) a certain deviation value compared to the beam signal quality of the neighboring cell). For example, the beam signal quality of cell (cell) 0 is Ms, the beam signal quality of cell1 is Mn, and the first preset deviation value is offset (offset) 1. One implementation of offset1 is network configuration. Then, if Ms + X < Mn - offset1 + Y, it is considered that the first condition is met.
[0673] 2) The number of beams satisfying 1) is greater than (or greater than or equal to) the first preset number of beams;
[0674] Assume that the number of the first preset beams is n, that is, the neighboring cell has more than (or not less than) n beams that meet the condition 1). One possible implementation method is that the beam signal quality of the serving cell described in 1) is the signal quality M of the beam with the best signal quality in the serving cell. s-best , when the neighboring area has more than n beams with a signal quality higher than M s-best If it is greater than a certain deviation value, such as offset1, then 2) is satisfied.
[0675] 3) Serving cell beam signal quality + X < (or ≤) second preset threshold + Y;
[0676] That is, the serving cell signal quality is lower than (or less than or equal to) a preset threshold. One implementation method is that the preset threshold is configured by the network;
[0677] 4) Neighboring cell beam signal quality + X > (or ≥) first preset threshold + Y;
[0678] That is, the signal quality of the neighboring cell is higher than (or greater than or equal to) a preset threshold. One implementation method is that the preset threshold is configured by the network;
[0679] 5) The number of beams satisfying 3) is greater than (or greater than or equal to) the first preset number of beams;
[0680] Assume that the first preset number of beams is n1, that is, the serving cell has more than (or not less than) n1 beams that meet condition 3);
[0681] 6) The number of beams satisfying 4) is greater than (or greater than or equal to) the first preset number of beams;
[0682] Assume that the first preset number of beams is n1, that is, the neighboring cell has more than (or not less than) n1 beams that meet the condition 4);
[0683] 7) Serving cell beam signal quality + X > (or ≥) the second preset threshold + Y;
[0684] That is, the serving cell signal quality is higher than (or greater than or equal to) a preset threshold. One implementation method is that the preset threshold is configured by the network;
[0685] 8) Neighboring cell beam signal quality + X < (or ≤) first preset threshold + Y;
[0686] That is, the signal quality of the neighboring cell is lower than (or less than or equal to) a preset threshold. One implementation method is that the preset threshold is configured by the network;
[0687] 9) The number of beams satisfying 7) is less than (or less than or equal to) the first preset number of beams;
[0688] Assume that the first preset number of beams is n1, that is, the serving cell has less than (or not more than) n1 beams that meet the condition 7);
[0689] 10) The number of beams satisfying 8) is less than (or less than or equal to) the first preset number of beams;
[0690] Assume that the first preset number of beams is n1, that is, the neighboring cell has more than (or no more than) n1 beams that meet the condition 8);
[0691] Among them, the above conditions can be independently configured to the UE, for example, only 1) is configured as the first condition, or combined with any two or more conditions to the UE as the first condition, for example, 3) and 4) are configured as the first condition at the same time. When the above combination is used as the first condition, the parameters involved can be independently configured, for example, when 5) and 6) are combined, the first preset number of beams configured for 5) and 6) respectively, that is, the first preset number of beams configured for 5) is n1, and the first preset number of beams configured for 6) is n2; it can also be a common parameter configuration for both 5) and 6), for example, a unique n is configured as the first preset number of beams for both 5) and 6). In addition, when the execution condition is a combination of the above multiple items (for example, 3) and 4), one implementation method is that when all items are met (that is, when 3) and 4) are met), the UE determines that the candidate cell or a beam of the candidate cell meets the execution condition; another implementation method is that when any one item is met (that is, when 3) or 4) is met), the UE determines that the candidate cell or a beam of the candidate cell meets the execution condition, but it is not limited to this.
[0692] In addition, X and / or Y involved in the above inequality may or may not exist. X and Y may be other parameters that affect the inequality and are not limited here.
[0693] Example 2-2: The UE determines that the execution condition is met and enters the evaluation condition (corresponding to the first evaluation condition above);
[0694] The UE evaluates the first condition according to Example 2-1, but when the following conditions are met, the UE considers that the execution condition entry condition is met:
[0695] a) satisfying the first condition within a first preset time;
[0696] Taking the first condition as 1) in Example 2-1 as an example, the first preset time is the target time (Time-to-Trigger, TTT). If 1) in Example 2-1 is always met during the TTT duration, it is considered that the execution condition entry condition is met.
[0697] b) within a first preset time period, the number of times the first condition is satisfied is greater than (or greater than or equal to) the first preset number of times;
[0698] Taking the first condition as 1) in Example 2-1 as an example, the first preset time is TTT, and the first preset number is n. Then within the TTT duration, the number of measurements is, for example, m. If the number of times 1) in Example 2-1 is satisfied is greater than (or greater than or equal to) n, it is considered that the execution condition entry condition is satisfied.
[0699] c) the probability of satisfying the first condition within the first preset time is greater than (or greater than or equal to) the first preset probability;
[0700] Taking the first condition as 1) in Example 2-1 as an example, the first preset time is TTT, and the first preset probability is 90%. Then, within the TTT duration, the number of measurements is, for example, m, and the number of times 1) in Example 2-1 is satisfied is n, where n / m>90%, then it is considered that the execution condition entry condition is satisfied.
[0701] d) the number of times the first condition is continuously satisfied is greater than (or greater than or equal to) a first preset number;
[0702] Taking the first condition as 1) in Example 2-1 as an example, the first preset number is n. If n consecutive measurements satisfy 1) in Example 2-1, it is considered that the execution condition and entry condition are satisfied.
[0703] e) within a first preset number of statistical times, the probability of satisfying the first condition is greater than (or greater than or equal to) a first preset probability;
[0704] Taking the first condition as 1) in Example 2-1 as an example, the first preset statistical number is m, and the first preset probability is 90%. Then, among m consecutive measurements, the number of times 1) in Example 2-1 is satisfied is n. When n / m>90%, it is considered that the execution condition and entry condition are satisfied.
[0705] f) within a first preset number of statistical times, the number of times the first condition is satisfied is greater than (or greater than or equal to) the first preset number of times;
[0706] Taking the first condition as 1) in Example 2-1 as an example, the first preset statistical number is m, and the first preset number is n. Then, among m consecutive measurements, if the number of times 1) in Example 2-1 is satisfied is greater than n, it is considered that the execution condition entry condition is satisfied.
[0707] g) satisfying the first condition;
[0708] Taking the first condition as 2) in Example 2-1 as an example, when this condition is met, it is considered that the execution condition entry condition is met.
[0709] h) the number of times the first condition is satisfied within the first preset time is less than (or less than or equal to) the first preset number;
[0710] Taking 7) in Example 2-1 as an example, the first preset time is TTT, and the first preset number is n. Then within the TTT duration, the number of measurements is, for example, m. If the number of times 7) in Example 2-1 is satisfied is less than (or less than or equal to) n, it is considered that the execution condition entry condition is satisfied.
[0711] i) the probability of satisfying the first condition within the first preset time is less than (or less than or equal to) the first preset probability;
[0712] Taking the first condition as 7) in Example 2-1 as an example, the first preset time is TTT, and the first preset probability is 10%. Then within the TTT duration, the number of measurements is, for example, m, and the number of times 7) in Example 2-1 is satisfied is n, where n / m<10%, then it is considered that the execution condition entry condition is satisfied.
[0713] j) within a first preset number of statistical times, the probability of satisfying the first condition is less than (or less than or equal to) a first preset probability;
[0714] Taking the first condition as 7) in Example 2-1 as an example, the first preset statistical number is m, and the first preset probability is 10%. Then, among m consecutive measurements, the number of times 7) in Example 2-1 is satisfied is n. When n / m<10%, it is considered that the execution condition and entry condition are met.
[0715] k) within a first preset number of statistical times, the number of times the first condition is satisfied is less than (or less than or equal to) the first preset number of times;
[0716] Taking the first condition as 7) in Example 2-1 as an example, the first preset statistical number is m, and the first preset number is n. Then, among m consecutive measurements, if the number of times 7) in Example 2-1 is satisfied is less than n, it is considered that the execution condition entry condition is satisfied.
[0717] Among them, the parameters involved above can be independently configured. For example, taking a) as an example, when conditions 3) and 4) are combined, the first preset time is configured for 3) and 4) respectively, that is, the first preset time configured for 3) is TTT1, and the first preset time configured for 4) is TTT2; it can also be a common parameter configured for both 3) and 4), for example, a unique TTT is configured as the first preset time for both 3) and 4).
[0718] In addition, when the execution condition is a combination of multiple conditions (for example, c) and d), one implementation method is that only when all conditions are met (i.e., both c) and d) are met) does the UE determine that the candidate cell or a beam of the candidate cell meets the execution condition; another implementation method is that only when any one condition is met (i.e., c) or d) is met) does the UE determine that the candidate cell or a beam of the candidate cell meets the execution condition, but the present invention is not limited thereto. The first condition in c) and d) may be the same or different.
[0719] Example 2-3: Leaving condition (corresponding to the second target condition above);
[0720] The UE evaluates a second condition, where the second condition may include at least one of the following:
[0721] 1) Serving cell beam signal quality + X > neighboring cell beam signal quality - first preset deviation value + Y;
[0722] That is, the beam signal quality of the serving cell is greater than the difference obtained by subtracting a certain offset value from the beam signal quality of the neighboring cell. For example, the beam signal quality of cell0 is Ms, and the beam signal quality of cell1 is Mn. The first preset offset value is offset1, where one implementation method of offset1 is network configuration. Then Ms+X>Mn-offset1+Y, and the second condition is considered to be met.
[0723] 2) The number of beams satisfying 1) is greater than the first preset number of beams;
[0724] Assume that the number of the first preset beams is n, that is, the serving cell has more than n beams that meet the condition 1). One possible implementation method is that the beam signal quality of the neighboring cell described in 1) is the signal quality M of the beam with the best signal quality in the neighboring cell. n-best , when the serving cell has more than n beams and the signal quality is greater than M n-best Subtracting the difference from a certain offset value (e.g., offset1) will satisfy 2).
[0725] 3) Serving cell beam signal quality + X > second preset threshold + Y;
[0726] That is, the signal quality of the serving cell is greater than a preset threshold. One implementation method is that the preset threshold is configured by the network.
[0727] 4) Neighboring cell beam signal quality + X < first preset threshold + Y;
[0728] That is, the signal quality of the neighboring cell is less than a preset threshold. One implementation method is that the preset threshold is configured by the network.
[0729] 5) The number of beams satisfying 3) is greater than the first preset number of beams;
[0730] Assume that the first preset number of beams is n1, that is, the serving cell has more than n1 beams that meet the condition 3).
[0731] 6) The number of beams satisfying 4) is greater than the first preset number of beams;
[0732] Assume that the first preset number of beams is n1, that is, there are more than n1 beams in the neighboring area that meet the condition 4).
[0733] 7) Serving cell beam signal quality + X < second preset threshold + Y;
[0734] That is, the signal quality of the serving cell is less than a preset threshold. One implementation method is that the preset threshold is configured by the network.
[0735] 8) Neighboring cell beam signal quality + X > first preset threshold + Y;
[0736] That is, the signal quality of the neighboring cell is greater than a preset threshold. One implementation method is that the preset threshold is configured by the network.
[0737] 9) The number of beams satisfying 7) is less than the first preset number of beams;
[0738] Assume that the first preset number of beams is n1, that is, the serving cell has less than n1 beams that meet the condition 7).
[0739] 10) The number of beams satisfying 8) is less than the first preset number of beams;
[0740] Assume that the first preset number of beams is n1, that is, there are more than n1 beams in the neighboring area that meet the condition 8).
[0741] Among them, the above conditions can be independently configured to the UE, for example, only 1) is configured as the second condition, or combined with any two or more of them to the UE as the second condition, for example, 3) and 4) are configured as the second condition at the same time. When the above combination is used as the second condition, the parameters involved can be independently configured, for example, when 5) and 6) are combined, the first preset number of beams configured for 5) and 6) respectively, that is, the first preset number of beams configured for 5) is n1, and the first preset number of beams configured for 6) is n2; it can also be a common parameter configuration for both 5) and 6), for example, a unique n is configured as the first preset number of beams for both 5) and 6). When the execution condition is a combination of the above multiple items (for example, 3) and 4), one implementation method is that when all items are met (that is, when 3) and 4) are met), the UE determines that the candidate cell or a beam of the candidate cell does not meet the execution condition; another implementation method is that when any one item is met (that is, when 3) or 4) is met), the UE determines that the candidate cell or a beam of the candidate cell does not meet the execution condition, but it is not limited to this.
[0742] X and Y involved in the above inequality may or may not exist. X and / or Y may be other parameters that affect the inequality and are not limited here.
[0743] Among them, the parameters involved in this embodiment may be the same as or different from the parameters configured in the first condition, and there is no restriction here; taking 1) in Example 2-1 and 1) in Example 2-3 as examples, taking the offset as an example, they can be configured separately, or one value can be configured for evaluating both the first condition and the second condition.
[0744] Embodiment 2-4: The UE determines that the execution condition leaving condition (corresponding to the above-mentioned second evaluation condition) is satisfied;
[0745] The UE evaluates the second condition according to embodiment 2-3, but when the following conditions are met, the UE considers that the execution condition and the leaving condition are met:
[0746] a) satisfying the second condition within the first preset time;
[0747] Taking the second condition as 1) in Example 2-3 as an example, the first preset time is TTT. If 1) in Example 2-3 is always satisfied during the duration of TTT, it is considered that the execution condition and the leaving condition are satisfied.
[0748] b) within the first preset time period, the second condition is satisfied for a number of times greater than (or greater than or equal to) the first preset number of times;
[0749] Taking the second condition as 1) in Example 2-3 as an example, the first preset time is TTT, and the first preset number is n. Then within the TTT duration, the number of measurements is, for example, m. If the number of times 1) in Example 2-3 is satisfied is greater than (or greater than or equal to) n, it is considered that the execution condition and the leaving condition are satisfied.
[0750] c) the probability of satisfying the second condition within the first preset time is greater than (or greater than or equal to) the first preset probability;
[0751] Taking the second condition as 1) in Example 2-3 as an example, the first preset time is TTT, and the first preset probability is 90%. Then, within the TTT duration, the number of measurements is, for example, m, and the number of times 1) in Example 2-3 is satisfied is n, where n / m>90%, then it is considered that the execution condition and the leaving condition are satisfied.
[0752] d) the number of times the second condition is continuously satisfied is greater than (or greater than or equal to) the first preset number of times;
[0753] Taking the second condition as 1) in Example 2-3 as an example, the first preset number is n, and if n consecutive measurements satisfy 1) in Example 2-3, it is considered that the execution condition and the exit condition are satisfied.
[0754] e) within a first preset number of statistical times, the probability of satisfying the second condition is greater than (or greater than or equal to) the first preset probability;
[0755] Taking the second condition as 1) in Example 2-3 as an example, the first preset statistical number is m, and the first preset probability is 90%. Then, among m consecutive measurements, the number of times 1) in Example 2-3 is satisfied is n. When n / m>90%, it is considered that the execution condition and the exit condition are satisfied.
[0756] f) within a first preset number of statistical times, the number of times the second condition is satisfied is greater than (or greater than or equal to) the first preset number of statistical times;
[0757] Taking the second condition as 1) in Example 2-3 as an example, the first preset statistical number is m, and the second preset number is n. Then, among m consecutive measurements, if the number of times 1) in Example 2-3 is met is greater than n, it is considered that the execution condition and the exit condition are met.
[0758] g) satisfying the second condition;
[0759] Taking the second condition as 2) in Example 2-3 as an example, when this condition is met, it is considered that the execution condition and the leaving condition are met;
[0760] h) the number of times the second condition is satisfied within the first preset time period is less than (or less than or equal to) the first preset number of times;
[0761] Taking 7) in Example 2-3 as an example, the first preset time is TTT, and the first preset number is n. Then within the TTT duration, the number of measurements is, for example, m. If the number of times 7) in Example 2-3 is satisfied is less than (or less than or equal to) n, it is considered that the execution condition and the leaving condition are satisfied.
[0762] i) the probability of satisfying the second condition within the first preset time is less than (or less than or equal to) the first preset probability;
[0763] Taking the second condition as 7) in Example 2-3 as an example, the first preset time is TTT, and the first preset probability is 10%. Then, within the TTT duration, the number of measurements is, for example, m, and the number of times 7) in Example 2-3 is satisfied is n, where n / m<10%, then it is considered that the execution condition and the exit condition are satisfied;
[0764] j) within a first preset number of statistical times, the probability of satisfying the second condition is less than (or less than or equal to) the first preset probability;
[0765] Taking the second condition as 7) in Example 2-3 as an example, the first preset statistical number is m, and the first preset probability is 10%. Then, among m consecutive measurements, the number of times 7) in Example 2-3 is satisfied is n. When n / m<10%, it is considered that the execution condition and the exit condition are satisfied.
[0766] k) within a first preset number of statistical times, the number of times the second condition is satisfied is less than (or less than or equal to) the first preset number of times;
[0767] Taking the second condition as 7) in Example 2-3 as an example, the first preset statistical number is m, and the second preset number is n. Then, among m consecutive measurements, if the number of times 7) in Example 2-3 is satisfied is less than n, it is considered that the execution condition and the exit condition are satisfied.
[0768] Among them, the parameters involved above can be independently configured. For example, taking a) as an example, when conditions 3) and 4) are combined, the first preset time is configured for 3) and 4) respectively, that is, the first preset time configured for 3) is TTT1, and the first preset time configured for 4) is TTT2; it can also be a common parameter configured for both 3) and 4), for example, a unique TTT is configured as the first preset time for both 3) and 4).
[0769] The parameters involved in this embodiment may be the same as or different from the parameters configured for the first condition, and this is not limited here. Taking 1) in Example 2-2 and 1) in Example 2-4 as examples, the first preset time can be configured separately, or a single value can be configured to evaluate both the first and second conditions.
[0770] In addition, when the execution condition is a combination of multiple conditions (for example, c) and d), one implementation method is that only when all conditions are met (i.e., c) and d) are met) does the UE determine that the candidate cell or a beam of the candidate cell does not meet the execution condition; another implementation method is that when any one condition is met (i.e., c) or d) is met), the UE determines that the candidate cell or a beam of the candidate cell does not meet the execution condition, but the present invention is not limited thereto. The second conditions in c) and d) may be the same or different.
[0771] Example 2-5: Cell beam signal quality;
[0772] The cell beam signal quality includes at least one of the following:
[0773] 1) The signal quality of the best beam in the cell. For example, if the serving cell has four beams, the beam with the best signal quality among the four beams is selected for evaluating the execution condition.
[0774] 2) The signal quality of the preset n best beams after filtering according to preset rules, where the preset value n can be a network configuration, for example, n = 2, the serving cell has 4 beams, and the 2 beams with the best signal quality among the 4 beams are selected and filtered according to the preset rules for the evaluation of the execution conditions.
[0775] 3) The beam signal quality of the beam above the preset threshold after filtering according to the preset rules, where the preset threshold can be a network configuration. For example, if the serving cell has 4 beams, and the signal quality of 2 of the 4 beams is higher than the threshold, the signal quality of the two beams above the threshold is selected and filtered according to the preset rules for the evaluation of the execution conditions.
[0776] 4) The signal quality of up to n best beams above a preset threshold, filtered according to preset rules. If the number of beams m above the threshold is less than n, then m beams are filtered according to the preset rules. For example, if n = 3, and the serving cell has 8 beams, and the signal quality of 2 of the 8 beams is above the threshold, the signal quality of the two beams above the threshold is selected and filtered according to the preset rules for evaluating the execution condition. Alternatively, if the signal quality of 4 of the 8 beams is above the threshold, the signal quality of the first 3 beams above the threshold is selected and filtered according to the preset rules for evaluating the execution condition.
[0777] 5) Signal quality of any beam. For example, if the serving cell has four beams, all four beams can be selected for evaluation of the execution condition (ie, the beam quality of all beams is used once for evaluation).
[0778] 6) The beam signal quality of all beams of the cell measured by the UE is obtained after filtering according to the preset rules. For example, if the serving cell has four beams and the UE can measure the signal quality of three beams, the beam signal quality obtained after filtering according to the preset rules is selected for evaluation;
[0779] 7) The signal quality of the worst beam in the cell is higher than the preset threshold. For example, if the serving cell has 8 beams and the signal quality of 3 beams among the 8 beams is higher than the preset threshold, the beam with the worst signal quality among the 3 beams is selected for evaluating the execution condition.
[0780] Among them, there is no restriction on whether the representation methods of the cell beam signal quality of the serving cell and the neighboring cell are the same or different. For example, taking 1) in Example 2-1 - that is, "1) serving cell beam signal quality + X < (or ≤) neighboring cell beam signal quality - first preset deviation value + Y" as an example, the serving cell (beam signal quality) involved in the evaluation can be the best beam (signal quality) of the cell, and the neighboring cell can be any beam (signal quality); or, the serving cell and the neighboring cell are both the average value of the (signal quality) of up to n best beams above the preset threshold, where n can be the same or configured to be different; or, the serving cell (beam signal quality) is the best beam (signal quality) of the cell, and the neighboring cell is the worst beam (signal quality) in the cell that is above the preset threshold, which is not limited here.
[0781] The beam signal quality may include at least one of the measurement results of parameters such as L1 SINR, L1 RSRP, and L1 RSRQ, and the specific implementation may be protocol provisions or network configuration.
[0782] Filtering according to a preset rule may include filtering based on an average of signal quality, or filtering according to a linear rule, which is not limited here.
[0783] Example 2-6: Signaling structure;
[0784] Before performing the evaluation, the UE receives at least one of the following configuration information from the network:
[0785] - A first time threshold (a time configuration for triggering execution, such as TTT, which may be equivalent to the first preset time in the above embodiment);
[0786] -L1 measurement threshold (for example, L1 RSRP, L1 SINR, or L1 RSRQ, which may be equivalent to the first preset threshold or the second preset threshold above);
[0787] -L1 measurement threshold deviation value (this deviation value is based on RSRP, RSRQ or SINR measured by L1, etc., and may be equivalent to the first preset deviation value above);
[0788] -The first number of beams (for example, the number of neighboring cell beams that satisfy the first deviation value may be equivalent to the first preset number of beams above).
[0789] - A first count number (equivalent to the first preset number above);
[0790] - a first probability (for example, the percentage of a beam measurement result exceeding a threshold within a preset time period, which may be equivalent to the first preset probability);
[0791] - A first statistical number (i.e., the total number, which may be equivalent to a first preset statistical number);
[0792] - Measurement cell configuration, such as pre-configured cell ID, measurement frequency, measurement PCI, or SSB configuration information (e.g., SSB measurement time window, or SSB burst bitmap);
[0793] It is hereby explained that the above configuration, as described in the above embodiments, can be configured separately for the serving cell and the neighboring cell, or only one common value can be configured for the serving cell and the neighboring cell (for example, only one first time threshold is configured for both the serving cell and the neighboring cell, but the L1 measurement threshold is configured for both the serving cell and the neighboring cell). Any parameter may be a common configuration for the serving cell and the neighboring cell or a common configuration for the cell group, but it can also be configured separately for the serving cell and the neighboring cell, which is not limited here. At the same time, meeting the execution conditions and not meeting the execution conditions are not limited to separate configurations. For example, TTT is configured separately to support the judgment of whether the execution conditions are met and whether the execution conditions are not met, that is, TTT1 is used to judge whether the conditions are met, and TTT2 is used to judge whether the leaving conditions are met. Alternatively, only one TTT can be configured to be used to judge whether the execution conditions or the leaving conditions are met.
[0794] In which, in a specific implementation, any or all of the above parameters are configured per candidate cell, for example, each candidate cell is configured with a first time threshold, an L1 measurement threshold and / or an L1 measurement threshold deviation value; or, any or all of the above parameters are publicly configured to apply to all candidate cells (for example, the first time threshold is publicly configured, and all candidate cells are evaluated using the same first time threshold) or publicly configured to apply to candidate cell groups (for example, the first time threshold is configured, and the evaluation of candidate cells in candidate cell group 1 uses the same first time threshold; the second time threshold is configured, and the evaluation of candidate cells in candidate cell group 2 uses the same second time threshold, and each candidate cell group contains at least one candidate cell); or, the first time threshold is publicly configured (all candidate cells are evaluated using the same first time threshold), but each candidate cell is individually configured with an L1 measurement threshold deviation value, but is not limited to this.
[0795] It is noted here that any of the above parameters can be configured to different protocol layers, or to the same protocol layer, for example, all parameters are configured in the RRC layer; or, some parameters are configured to the physical layer, and some parameters are configured to the MAC layer (for example, the L1 measurement threshold is configured to the physical layer, and the first count number is configured to the MAC layer). There is no restriction here.
[0796] Example 3: Selection of target cell and target beam;
[0797] The execution conditions of this solution can be configured in a combination of at least the following two items:
[0798] (1) Define an event that includes both the serving cell and the neighboring cell or only the neighboring cell;
[0799] (2) Define multiple events, for example, two events, event 1 includes the serving cell and event 2 includes the configuration of the neighboring cell;
[0800] (3) The UE determines that the candidate cell can be selected as the target cell only if the above execution conditions are met at the same time. Alternatively, the candidate cell can be selected as the target cell if any one of the execution conditions is met. When the exit condition of the execution condition is met, the candidate cell cannot be selected as the target cell.
[0801] Specifically, the selection of target cells and target beams is as follows:
[0802] 1. Target community;
[0803] When at least one candidate cell meets the execution condition, for example, both cell 1 and cell 2 meet the execution condition, the UE may determine the target cell in the following manner:
[0804] 1) UE selects the target cell based on the UE implementation. The UE implementation selects cell1 or cell2 as the target cell.
[0805] 2) The UE selects the cell with the best beam signal quality as the target cell. For example, if the signal quality of the best beam of cell 1 is higher than that of cell 2, cell 1 is selected.
[0806] 3) The UE selects the cell with the largest number of beams that meets the first condition as the target cell. For example, if cell 1 has three beams larger than the preset threshold, and cell 2 has two beams larger than the preset threshold, cell 1 is selected.
[0807] 4) The UE selects the cell with the highest beam signal quality after filtering according to a preset rule as the target cell. For example, according to any of 2), 3), and 4) mentioned in the above embodiments 2-5, the beam signal quality is obtained after filtering according to the preset rule. If the beam signal quality of cell 1 is greater than the beam signal quality of cell 2, then cell 1 is selected as the target cell. The filtering according to the preset rule can be filtering by averaging the signal quality or filtering according to a linear rule.
[0808] 5) The UE selects all cells that meet the execution conditions as target cells. For example, if both candidate cells cell1 and cell2 meet the execution conditions, the UE selects both cell1 and cell2 as target cells. One possible application scenario is to determine that both cell1 and cell2 are target cells for TA management, such as triggering operations related to cell1 and cell2 obtaining TA.
[0809] 6) The UE selects the cell with the best cell-level measurement result as the target cell. For example, the cell-level signal quality of cell 1 and cell 2 based on L3 measurement is calculated respectively, and the cell-level signal quality is compared. For example, if the cell 1 signal quality is greater than the cell 2 signal quality, cell 1 is selected as the target cell.
[0810] 2. Target beam;
[0811] Methods for determining the target beam of the target cell include:
[0812] 1) The beam with the best signal quality is the target beam. For example, if the target cell has four beams, the beam with the best signal quality is selected for access.
[0813] 2) The beam with the best quality after filtering according to a preset rule within a first preset time is selected as the target beam. For example, if the target cell has four beams, the signal quality of the four beams (or beams that meet the first condition) is filtered according to the preset rule within the first preset time. The filtering according to the preset rule can be filtering by taking the average of the signal quality, or filtering by calculating according to a linear rule, and the beam with the best quality after filtering is selected as the target beam;
[0814] 3) The beam with the best quality after filtering according to a preset rule within a first preset number of times is selected as the target beam. For example, if the target cell has four beams, the signal quality of the four beams (or beams that meet the first condition) is filtered according to the preset rule within the first preset number of times. The filtering according to the preset rule can be filtering by taking an average of the signal quality, or filtering by calculating according to a linear rule, and the beam with the best quality after filtering is selected as the target beam;
[0815] 4) The beam that meets the first condition and arrives first (the target beam) is selected. For example, if the target cell has four beams, and both beam 1 and beam 2 meet the first condition, but beam 1 arrives earlier than beam 2, beam 1 is selected as the target beam.
[0816] 5) UE-based selection. For example, if the target cell has four beams, the UE selects any beam as the target beam, or if both beam 1 and beam 2 meet the first condition, the UE selects beam 1 or beam 2 as the target beam. 6) Among the beams contained in the target cell, the beam that meets the execution condition and is associated with pre-configured uplink resources is selected as the target beam. For example, if the target cell has four beams, and beams 1, 2, and 3 all meet the execution condition, but beam 1 is associated with uplink pre-configured resources, beam 1 is selected as the target beam.
[0817] 7) Among the beams included in the target cell, the beam that meets the execution condition, is associated with the pre-configured uplink resources, and reaches the terminal first is selected as the target beam; for example, the target cell has four beams, of which beams 1, 2, and 3 all meet the execution condition, but beams 1 and 2 are associated with uplink pre-configured resources, but beam 1 arrives earlier than beam 2, then beam 1 is selected as the target beam;
[0818] 8) A beam that meets the first condition. For example, if the target cell has 4 beams and beam 1 meets the first condition, beam 1 is selected as the target beam. Alternatively, if the target cell has 4 beams and both beam 1 and beam 2 meet the first condition, both beam 1 and beam 2 are selected as target beams.
[0819] If the number of target cells is greater than 1, the above target beam selection is to select the target beam for each beam in each target cell respectively.
[0820] Example 4: Evaluation and decision protocol layer;
[0821] Example 4-1: The physical layer performs measurement and reporting, and the MAC layer performs evaluation;
[0822] First, perform step 1a or step 1b:
[0823] Step 1a: The UE physical layer performs L1 measurements and reports the measurement results to the MAC layer, where the measurement results may include indication information of candidate cells and / or beams;
[0824] Step 1b: The UE physical layer performs L1 measurement and evaluates and reports according to the configuration information of the configured execution conditions. For example, it determines whether to report indication information to the MAC layer based on the configured measurement threshold, such as:
[0825] - The measurement result of the candidate cell (e.g., cell1) meets the first condition of embodiment 2-1, and the UE physical layer reports indication information to the MAC layer, where the indication information indicates that cell1 meets the condition, or the indication information indicates that beam 1 of cell11 meets the condition; or,
[0826] -The measurement result of the candidate cell (for example, cell1) meets the second condition of Example 2-3, and the UE physical layer reports indication information to the MAC layer, where the indication information indicates that cell1 does not meet the condition, or the indication information indicates that beam 1 of cell11 does not meet the condition.
[0827] Step 2: The MAC layer of the UE receives the indication information of the physical layer, and performs statistics and evaluation in accordance with Example 2-2 and Implementation 2-4, for example: judging whether the entry condition or the exit condition of the execution condition is met based on the number of indication information that meets the conditions received within a preset time; or MAC performs an evaluation in accordance with Example 2 based on the measurement results reported by the physical layer, for example, judging whether the entry condition or the exit condition of the execution condition is met based on whether the measurement results within a preset time meet a preset threshold.
[0828] Step 3: The MAC layer of the UE determines that the candidate cell meets the entry conditions of the execution conditions, and then executes:
[0829] -MAC decision cell management, or,
[0830] -MAC indicates the RRC layer, and the RRC layer makes cell management decisions, where the MAC indication information may include indication information of the target cell and / or target beam.
[0831] Example 4-2: The physical layer performs measurement and evaluation;
[0832] Step 1: The UE physical layer performs L1 measurement and performs evaluation according to the configuration information of the configured execution condition, and determines the candidate cell that meets the execution condition according to the above embodiment 2.
[0833] Step 3: The UE's physical layer determines that the candidate cell meets the execution conditions and then executes:
[0834] - Physical layer decision cell management, or,
[0835] -The physical layer instructs the MAC layer and then the RRC layer, and the cell management decision is made by the MAC layer or the RRC layer, where the physical layer indication information may include indication information of the target cell and / or target beam.
[0836] Example 4-3: The RRC layer performs evaluation based on the indication information reported by the bottom layer;
[0837] First, perform step 1a or step 1b:
[0838] Step 1a: The UE performs L1 measurements and reports the measurement results to the RRC layer, where the measurement results include information indicating the candidate cells and / or beams.
[0839] Step 1b: The UE performs L1 measurement at the bottom layer and evaluates and reports according to the configuration information of the configured execution conditions. For example, it determines whether to report the indication information to the RRC layer based on the configured measurement threshold, such as:
[0840] The measurement result of the candidate cell (e.g., cell 1) meets the first condition of embodiment 2-1. The UE bottom layer reports indication information to the RRC layer, where the indication information indicates that cell 1 meets the condition, or the indication information indicates that beam 1 of cell 11 meets the condition.
[0841] -The measurement result of the candidate cell (for example, cell1) meets the second condition of Example 2-3, and the UE bottom layer reports indication information to the RRC layer, where the indication information indicates that cell1 does not meet the condition, or the indication information indicates that beam 1 of cell11 does not meet the condition.
[0842] Step 2: The RRC layer of the UE receives the measurement result or indication information reported by the bottom layer, and performs an evaluation according to Example 2, for example: judging whether the entry condition or the exit condition of the execution condition is met based on the number of indication information that meets the condition received within a preset time, or judging whether the entry condition or the exit condition of the execution condition is met based on whether the measurement result meets the preset threshold within the preset time.
[0843] Step 3: The RRC layer of the UE determines that the candidate cell meets the entry conditions of the execution conditions, and then the RRC makes a cell management decision.
[0844] The bottom layer may be a physical layer or a MAC layer, without limitation.
[0845] It is to be noted that the relevant contents of the above embodiments can be referred to each other, and the repeated parts will not be repeated here.
[0846] As described above, the solution provided by the embodiments of the present disclosure can support: the UE determines whether candidate cells meet the execution conditions according to the execution condition evaluation based on L1 measurements; when the execution conditions are determined to be met, the UE selects the target cell and target beam for cell management. Based on this, this solution can implement: in LTM based on UE decision, the UE determines whether to perform cell management.
[0847] The present disclosure also provides a cell management device, which is a terminal, as shown in FIG4 , including a memory 41 , a transceiver 42 , and a processor 43 :
[0848] The memory 41 is used to store computer programs; the transceiver 42 is used to send and receive data under the control of the processor 43; the processor 43 is used to read the computer program in the memory 41 and perform the following operations:
[0849] Get execution conditions;
[0850] evaluating whether there is at least one target candidate cell that meets the execution condition;
[0851] If the at least one target candidate cell exists, determining the target cell, and / or determining the target beam of the target cell;
[0852] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0853] The cell management device provided by the embodiment of the present disclosure obtains an execution condition; evaluates whether there is at least one target candidate cell that meets the execution condition; if the at least one target candidate cell exists, determines the target cell, and / or determines the target beam of the target cell; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration; it can support the UE to clarify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether the TA of the target cell can be obtained or through which beam to obtain, thereby supporting the implementation of the UE's decision on whether to perform cell management.
[0854] Specifically, the transceiver 42 is used to receive and send data under the control of the processor 43.
[0855] In FIG4 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 43 and memory represented by memory 41. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 42 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 44 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
[0856] The processor 43 is responsible for managing the bus architecture and general processing, and the memory 41 can store data used by the processor 43 when performing operations.
[0857] In some embodiments, the processor 43 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.
[0858] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.
[0859] The evaluating whether there is at least one target candidate cell that meets the execution condition includes: determining that the candidate cell is the target candidate cell that meets the execution condition when a first evaluation condition is met; wherein the first evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is less than a first preset threshold and meets the first preset condition; or, the beam signal quality of the serving cell is less than or equal to the first preset threshold and meets the first preset condition; (2) the beam signal quality of the candidate cell is greater than a second preset threshold and meets the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition; (3) The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than the third preset threshold and meets the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and meets the third preset condition; (4) the beam signal quality of the serving cell is greater than the fourth preset threshold and meets the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and meets the fourth preset condition; (5) the beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0860] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: when a second evaluation condition is met, determining that the candidate cell does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than a sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than a seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than a ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than a tenth preset threshold and meets the tenth preset condition.
[0861] Furthermore, the operation also includes: obtaining configuration information; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0862] The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained by filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained by filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained by filtering the first beams of the first number contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any beam contained in the cell; (6) the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0863] In an embodiment of the present disclosure, the determination of the target cell includes: determining the target cell from the at least one target candidate cell according to a first method; wherein the first method includes at least one of the following: selecting the target cell based on the terminal; selecting the cell where the beam with the highest signal quality is located as the target cell; selecting the cell with the largest number of beams that meets the execution conditions as the target cell; selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell; selecting at least one of the target candidate cells as the target cell; selecting the cell with the best cell-level measurement result based on layer 3 measurement as the target cell.
[0864] wherein determining the target beam of the target cell includes: determining the target beam of the target cell according to a second method; wherein the second method includes at least one of the following: selecting a beam with the best signal quality in the target cell as the target beam; selecting, among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time as the target beam; selecting, among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times as the target beam; selecting, among the beams included in the target cell, a beam that meets the execution condition and reaches the terminal first as the target beam; selecting, among the beams included in the target cell, a target beam based on the terminal; selecting, among the beams included in the target cell, a beam that meets the execution condition and is associated with pre-configured uplink resources as the target beam; selecting, among the beams included in the target cell, a beam that meets the execution condition, is associated with pre-configured uplink resources, and reaches the terminal first as the target beam; and selecting, among the beams included in the target cell, a beam that meets the execution condition as the target beam.
[0865] Furthermore, the operation further includes: managing the target cell using a third method; wherein the third method includes at least one of the following: (1) triggering a random access process to the target cell; (2) sending uplink data on pre-configured uplink resources through the transceiver; (3) monitoring a physical downlink control channel PDCCH in the target cell; (4) sending uplink data on pre-configured uplink resources through the transceiver when a valid timing advance TA of the target cell is obtained; (5) sending uplink data on a target transmission configuration indication TCI or a target waveguide when a valid TA of the target cell is obtained. (6) triggering a random access process to the target cell when a valid TA of the target cell is not obtained; (7) before accessing the target cell, sending a first indication information to the network device through the transceiver, wherein the first indication information is used to indicate the target cell and / or target beam information; (8) before accessing the target cell when a valid TA of the target cell is obtained, sending a second indication information to the network device through the transceiver, wherein the second indication information is used to indicate the target cell and / or target beam information; (9) determining to obtain the TA of the target cell.
[0866] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0867] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: determining at least one candidate cell to be evaluated; determining whether there is at least one target candidate cell that meets the execution condition from the at least one candidate cell to be evaluated; wherein the candidate cell to be evaluated includes at least one of the following: a candidate cell for which the terminal has acquired a valid TA; a candidate cell for which pre-configured uplink resources are set for the terminal to send the first uplink data; a candidate cell for evaluation indicated by network configuration indication information; all candidate cells configured by the network; and all candidate cells associated with the execution condition.
[0868] The evaluation of whether there is at least one target candidate cell that meets the execution conditions includes: evaluating whether there is at least one target candidate cell that meets the execution conditions according to the fourth method; the fourth method includes at least one of the following: the media access control MAC entity of the terminal evaluates according to the information reported by the physical layer of the terminal; the physical layer of the terminal evaluates; the radio resource control RRC layer of the terminal evaluates according to the information reported by the bottom layer of the terminal.
[0869] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned terminal-side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
[0870] The present disclosure also provides a cell management device, which is a network device, as shown in FIG5 , including a memory 51 , a transceiver 52 , and a processor 53 :
[0871] The memory 51 is used to store computer programs; the transceiver 52 is used to send and receive data under the control of the processor 53; the processor 53 is used to read the computer program in the memory 51 and perform the following operations:
[0872] Sending execution conditions via the transceiver 52;
[0873] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0874] The cell management device provided by the embodiment of the present disclosure sends an execution condition; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration; it can support the UE to clearly identify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether the TA of the target cell can be obtained or through which beam to obtain, thereby supporting the implementation of the UE's decision on whether to perform cell management.
[0875] Specifically, the transceiver 52 is used to receive and send data under the control of the processor 53.
[0876] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 53 and memory represented by memory 51. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 52 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 53 is responsible for managing the bus architecture and general processing, and the memory 51 may store data used by the processor 53 when performing operations.
[0877] The processor 53 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.
[0878] Furthermore, the operation further includes: sending a first evaluation condition to the terminal through the transceiver; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; wherein the first evaluation condition includes at least one of the following: (1) the serving cell beam signal quality is less than a first preset threshold and meets the first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and meets the first preset condition; (2) the candidate cell beam signal quality is greater than a second preset threshold and meets the second preset condition; or, the candidate cell beam signal quality is greater than or equal to the second preset threshold and meets the second preset condition; (3) The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than the third preset threshold and meets the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and meets the third preset condition; (4) the beam signal quality of the serving cell is greater than the fourth preset threshold and meets the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and meets the fourth preset condition; (5) the beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0879] In an embodiment of the present disclosure, the operation further includes: sending a second evaluation condition to the terminal through the transceiver; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than a sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than a seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than a ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than a tenth preset threshold and meets the tenth preset condition.
[0880] Furthermore, the operation also includes: sending configuration information through the transceiver; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0881] The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained by filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained by filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained by filtering the first beams of the first number contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any beam contained in the cell; (6) the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0882] Furthermore, the operation also includes at least one of the following: (1) receiving, through the transceiver, first indication information sent by the receiving terminal before accessing the target cell, wherein the first indication information is used to indicate the target cell and / or target beam information; (2) receiving, through the transceiver, second indication information sent by the receiving terminal before accessing the target cell when a valid TA of the target cell is obtained, wherein the second indication information is used to indicate the target cell and / or target beam information.
[0883] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0884] Furthermore, the operation includes at least one of the following: (1) sending network configuration indication information to the terminal through the transceiver, wherein the network configuration indication information is used to indicate the candidate cell to be evaluated; (2) configuring the candidate cell to the terminal through the transceiver; (3) sending the candidate cell configuration associated with the execution condition to the terminal through the transceiver.
[0885] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.
[0886] The present disclosure also provides a cell management device, which is applied to a terminal, as shown in FIG6 , and includes:
[0887] A first acquiring unit 61 is used to acquire an execution condition;
[0888] A first processing unit 62 is configured to evaluate whether there is at least one target candidate cell that meets the execution condition;
[0889] a first determining unit 63, configured to determine a target cell and / or a target beam of the target cell if the at least one target candidate cell exists;
[0890] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0891] The cell management device provided by the embodiment of the present disclosure obtains an execution condition; evaluates whether there is at least one target candidate cell that meets the execution condition; if the at least one target candidate cell exists, determines the target cell, and / or determines the target beam of the target cell; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration; it can support the UE to clarify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether or not to obtain the TA of the target cell or through which beam to obtain it, thereby supporting the implementation of a solution for the UE to decide whether to perform cell management.
[0892] The evaluating whether there is at least one target candidate cell that meets the execution condition includes: determining that the candidate cell is the target candidate cell that meets the execution condition when a first evaluation condition is met; wherein the first evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is less than a first preset threshold and meets the first preset condition; or, the beam signal quality of the serving cell is less than or equal to the first preset threshold and meets the first preset condition; (2) the beam signal quality of the candidate cell is greater than a second preset threshold and meets the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition; (3) The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than the third preset threshold and meets the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and meets the third preset condition; (4) the beam signal quality of the serving cell is greater than the fourth preset threshold and meets the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and meets the fourth preset condition; (5) the beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0893] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: when a second evaluation condition is met, determining that the candidate cell does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than a sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than a seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than a ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than a tenth preset threshold and meets the tenth preset condition.
[0894] Furthermore, the cell management device also includes: a second acquisition unit, used to obtain configuration information; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0895] The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained by filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained by filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained by filtering the first beams of the first number contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any beam contained in the cell; (6) the beam signal quality obtained by filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0896] In an embodiment of the present disclosure, the determination of the target cell includes: determining the target cell from the at least one target candidate cell according to a first method; wherein the first method includes at least one of the following: selecting the target cell based on the terminal; selecting the cell where the beam with the highest signal quality is located as the target cell; selecting the cell with the largest number of beams that meets the execution conditions as the target cell; selecting the cell with the highest signal quality obtained after filtering the beam signal quality according to the fourth preset rule as the target cell; selecting at least one of the target candidate cells as the target cell; selecting the cell with the best cell-level measurement result based on layer 3 measurement as the target cell.
[0897] wherein determining the target beam of the target cell includes: determining the target beam of the target cell according to a second method; wherein the second method includes at least one of the following: selecting a beam with the best signal quality in the target cell as the target beam; selecting, among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time as the target beam; selecting, among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times as the target beam; selecting, among the beams included in the target cell, a beam that meets the execution condition and reaches the terminal first as the target beam; selecting, among the beams included in the target cell, a target beam based on the terminal; selecting, among the beams included in the target cell, a beam that meets the execution condition and is associated with pre-configured uplink resources as the target beam; selecting, among the beams included in the target cell, a beam that meets the execution condition, is associated with pre-configured uplink resources, and reaches the terminal first as the target beam; and selecting, among the beams included in the target cell, a beam that meets the execution condition as the target beam.
[0898] Furthermore, the cell management device further includes: a second processing unit, configured to manage the target cell in a third manner; wherein the third manner includes at least one of the following: (1) triggering a random access process to the target cell; (2) sending uplink data on pre-configured uplink resources; (3) monitoring a physical downlink control channel (PDCCH) in the target cell; (4) sending uplink data on pre-configured uplink resources when a valid timing advance (TA) of the target cell is obtained; (5) monitoring the PDCCH according to a target transmission configuration indication (TCI) or a target beam index when a valid TA of the target cell is obtained; (6) triggering a random access process to the target cell when a valid TA of the target cell is not obtained; (7) sending a first indication message to a network device before accessing the target cell, the first indication message being used to indicate the target cell and / or target beam information; (8) sending a second indication message to a network device before accessing the target cell when a valid TA of the target cell is obtained, the second indication message being used to indicate the target cell and / or target beam information; and (9) determining the TA of the target cell.
[0899] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0900] In an embodiment of the present disclosure, the evaluation of whether there is at least one target candidate cell that meets the execution condition includes: determining at least one candidate cell to be evaluated; determining whether there is at least one target candidate cell that meets the execution condition from the at least one candidate cell to be evaluated; wherein the candidate cell to be evaluated includes at least one of the following: a candidate cell for which the terminal has acquired a valid TA; a candidate cell for which pre-configured uplink resources are set for the terminal to send the first uplink data; a candidate cell for evaluation indicated by network configuration indication information; all candidate cells configured by the network; and all candidate cells associated with the execution condition.
[0901] The evaluation of whether there is at least one target candidate cell that meets the execution conditions includes: evaluating whether there is at least one target candidate cell that meets the execution conditions according to the fourth method; the fourth method includes at least one of the following: the media access control MAC entity of the terminal evaluates according to the information reported by the physical layer of the terminal; the physical layer of the terminal evaluates; the radio resource control RRC layer of the terminal evaluates according to the information reported by the bottom layer of the terminal.
[0902] It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned terminal-side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
[0903] The present disclosure also provides a cell management device, which is applied to a network device, as shown in FIG7 , and includes:
[0904] A first sending unit 71 is used to send an execution condition;
[0905] The execution condition is a beam-level execution condition based on the layer 1 measurement configuration.
[0906] The cell management device provided by the embodiment of the present disclosure sends an execution condition; wherein the execution condition is a beam-level execution condition based on the layer 1 measurement configuration; it can support the UE to clearly identify the target cell and / or target beam (that meets the execution condition), and then determine whether to perform a cell change, or determine whether or through which beam to obtain the TA of the target cell, thereby supporting the implementation of the UE's decision on whether to perform cell management.
[0907] Furthermore, the cell management device further includes: a second sending unit, configured to send a first evaluation condition to the terminal; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; wherein the first evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is less than a first preset threshold and meets the first preset condition; or, the beam signal quality of the serving cell is less than or equal to the first preset threshold and meets the first preset condition; (2) the beam signal quality of the candidate cell is greater than a second preset threshold and meets the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and meets the second preset condition; (3) The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than the third preset threshold and meets the third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to the third preset threshold and meets the third preset condition; (4) The beam signal quality of the serving cell is greater than the fourth preset threshold and meets the fourth preset condition; or, the beam signal quality of the serving cell is greater than or equal to the fourth preset threshold and meets the fourth preset condition; (5) The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
[0908] In an embodiment of the present disclosure, the cell management device further includes: a third sending unit, configured to send a second evaluation condition to the terminal; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; wherein the second evaluation condition includes at least one of the following: (1) the beam signal quality of the serving cell is greater than a sixth preset threshold and meets the sixth preset condition; (2) the beam signal quality of the candidate cell is less than a seventh preset threshold and meets the seventh preset condition; (3) the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and meets the eighth preset condition; (4) the beam signal quality of the serving cell is less than a ninth preset threshold and meets the ninth preset condition; (5) the beam signal quality of the candidate cell is greater than a tenth preset threshold and meets the tenth preset condition.
[0909] Among them, the cell management device also includes: a fourth sending unit, used to send configuration information; wherein, the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
[0910] In the embodiment of the present disclosure, the cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; wherein the cell beam signal quality includes at least one of the following: (1) the signal quality of the beam with the best signal quality contained in the cell; (2) the beam signal quality obtained after filtering the n beams contained in the cell according to the first preset rule; the n beams are the beams ranked in the top n positions in terms of signal quality from high to low; (3) the beam signal quality obtained after filtering the beams contained in the cell with signal quality higher than the eleventh preset threshold according to the second preset rule; (4) the beam signal quality obtained after filtering the first number of first beams contained in the cell according to the third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than the twelfth preset threshold; (5) the signal quality of any one beam contained in the cell; (6) the beam signal quality obtained after filtering all beams of the cell measured by the terminal according to the seventh preset rule; (7) the signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than the thirteenth preset threshold.
[0911] Furthermore, the cell management device also includes a first receiving unit, which is used to perform at least one of the following: (1) receiving first indication information sent by the terminal before accessing the target cell, wherein the first indication information is used to indicate the target cell and / or target beam information; (2) receiving second indication information sent by the terminal before accessing the target cell when the valid TA of the target cell is obtained, wherein the second indication information is used to indicate the target cell and / or target beam information.
[0912] The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
[0913] Furthermore, the cell management device also includes a fifth sending unit, which is used to perform at least one of the following: (1) sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate the candidate cell to be evaluated; (2) configuring the candidate cell to the terminal; (3) sending the candidate cell configuration associated with the execution condition to the terminal.
[0914] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
[0915] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.
[0916] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0917] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned terminal side or network device side method.
[0918] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor storage (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD)), etc.
[0919] Among them, the implementation embodiments of the above-mentioned methods on the terminal side or the network device side are all applicable to the embodiments of the non-transitory readable storage medium and can also achieve the same technical effects.
[0920] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.
[0921] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0922] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0923] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.
[0924] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the determination module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned determination module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the hardware integrated logic circuit in the processor element or by instructions in the form of software.
[0925] For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
[0926] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."
[0927] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.
Claims
1. A cell management method, applied to a terminal, comprising: Get execution conditions; evaluating whether there is at least one target candidate cell that meets the execution condition; If the at least one target candidate cell exists, determining the target cell, and / or determining the target beam of the target cell; The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
2. The cell management method according to claim 1, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: In a case where the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
3. The cell management method according to claim 1, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: If the second evaluation condition is met, determining that the candidate cell does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
4. The cell management method according to any one of claims 1 to 3, wherein: Also includes: Get configuration information; The configuration information includes at least one of the following: Preset time; Preset deviation value; Preset threshold; Preset number of beams; Preset times; Preset probability; Count the number of times; Cell measurement configuration information.
5. The cell management method according to claim 2 or 3, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal qualities of n beams contained in the cell obtained after filtering according to the first preset rule; the n beams are the beams ranked in the top n positions in descending order of signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; All beams of the cell measured by the terminal are filtered according to the seventh preset rule to obtain the beam Signal quality; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
6. The cell management method according to claim 2, wherein: The determining of the target cell includes: According to the first manner, determining a target cell from the at least one target candidate cell; The first method includes at least one of the following: Selecting a target cell based on the terminal; Select the cell where the beam with the highest signal quality is located as the target cell; Selecting a cell with the largest number of beams that meets the execution condition as the target cell; Selecting a cell with the highest signal quality obtained after filtering the beam signal quality according to a fourth preset rule as the target cell; Selecting at least one of the target candidate cells as a target cell; The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
7. The cell management method according to claim 2, wherein: The determining a target beam of a target cell includes: According to the second method, determining a target beam of the target cell; The second method includes at least one of the following: Select the beam with the best signal quality in the target cell as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time is selected as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times is selected as the target beam; Among the beams included in the target cell, select a beam that meets the execution condition and reaches the terminal first as the target beam; Selecting a target beam among beams included in the target cell based on the terminal implementation; Among the beams included in the target cell, select a beam that meets the execution condition and is associated with a pre-configured uplink resource as the target beam; Among the beams included in the target cell, select a beam that meets the execution condition and is associated with the preconfigured The resources are selected, and the beam that first reaches the terminal is the target beam; Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
8. The cell management method according to claim 1, wherein: Also includes: The third method is adopted to manage the target community; The third method includes at least one of the following: Triggering a random access process to the target cell; Sending uplink data on the preconfigured uplink resources; Monitor the physical downlink control channel PDCCH in the target cell; When a valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources; When a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index; If a valid TA of the target cell is not obtained, a random access procedure is triggered to the target cell; Before accessing the target cell, sending first indication information to the network device, where the first indication information is used to indicate the target cell and / or target beam information; In the case of acquiring a valid TA of the target cell, before accessing the target cell, sending second indication information to the network device, where the second indication information is used to indicate the target cell and / or target beam information; Determine and obtain the TA of the target cell.
9. The cell management method according to claim 1, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
10. The cell management method according to claim 1, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: Determining at least one candidate cell to be evaluated; Determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition; The candidate cells to be evaluated include at least one of the following: The terminal obtains candidate cells of valid TA; A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set; The network configuration indication information indicates the candidate cells to be evaluated; All candidate cells configured by the network; All candidate cells associated with the execution condition.
11. The cell management method according to claim 1, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: According to a fourth manner, evaluating whether there is at least one target candidate cell that meets the execution condition; The fourth method includes at least one of the following: The media access control MAC entity of the terminal performs evaluation according to the information reported by the physical layer of the terminal; evaluating the physical layer of the terminal; The radio resource control RRC layer of the terminal performs evaluation according to the information reported by the bottom layer of the terminal.
12. A cell management method, applied to a network device, comprising: Send execution conditions; The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
13. The cell management method according to claim 12, wherein: Also includes: Sending a first evaluation condition to a terminal; The first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, The serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
14. The cell management method according to claim 12, wherein: Also includes: sending a second evaluation condition to the terminal; The second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
15. The cell management method according to any one of claims 12 to 14, wherein: Also includes: Send configuration information; The configuration information includes at least one of the following: Preset time; Preset deviation value; Preset threshold; Preset number of beams; Preset times; Preset probability; Count the number of times; Cell measurement configuration information.
16. The cell management method according to claim 13 or 14, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal quality obtained after filtering the n beams included in the cell according to the first preset rule; The n beams are the first n beams ranked from high to low in signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
17. The cell management method according to claim 12, wherein: Also includes at least one of the following: receiving first indication information sent by the terminal before accessing the target cell, where the first indication information is used to indicate the target cell and / or target beam information; The receiving terminal sends second indication information before accessing the target cell when acquiring a valid TA of the target cell, wherein the second indication information is used to indicate the target cell and / or target beam information.
18. The cell management method according to claim 12, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
19. The cell management method according to claim 12, wherein: Also includes at least one of the following: Sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate a candidate cell to be evaluated; Configuring candidate cells for the terminal; Sending a candidate cell configuration associated with the execution condition to the terminal.
20. A cell management device, the cell management device being a terminal, comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Get execution conditions; evaluating whether there is at least one target candidate cell that meets the execution condition; If the at least one target candidate cell exists, determining the target cell, and / or determining the target beam of the target cell; in, The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
21. The cell management device according to claim 20, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: In a case where the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
22. The cell management device according to claim 20, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: If the second evaluation condition is met, determining that the candidate cell does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
23. The cell management device according to any one of claims 20 to 22, wherein: The operations also include: Obtained configuration information; The configuration information includes at least one of the following: Preset time; Preset deviation value; Preset threshold; Preset number of beams; Preset times; Preset probability; Count the number of times; Cell measurement configuration information.
24. The cell management device according to claim 21 or 22, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal qualities of n beams contained in the cell obtained after filtering according to the first preset rule; the n beams are the beams ranked in the top n positions in descending order of signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
25. The cell management device according to claim 21, wherein: The determining of the target cell includes: According to the first manner, determining a target cell from the at least one target candidate cell; The first method includes at least one of the following: Selecting a target cell based on the terminal; Select the cell where the beam with the highest signal quality is located as the target cell; Selecting a cell with the largest number of beams that meets the execution condition as the target cell; Selecting a cell with the highest signal quality obtained after filtering the beam signal quality according to a fourth preset rule as the target cell; Selecting at least one of the target candidate cells as a target cell; The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
26. The cell management device according to claim 21, wherein: The determining a target beam of a target cell includes: According to the second method, determining a target beam of the target cell; The second method includes at least one of the following: Select the beam with the best signal quality in the target cell as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time is selected as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times is selected as the target beam; Among the beams included in the target cell, select a beam that meets the execution condition and reaches the terminal first as the target beam; Selecting a target beam among beams included in the target cell based on the terminal implementation; Among the beams included in the target cell, select a beam that meets the execution condition and is associated with a pre-configured uplink resource as the target beam; Among the beams included in the target cell, select the beam that meets the execution condition and is associated with the preconfigured uplink resources and reaches the terminal first as the target beam; Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
27. The cell management device according to claim 20, wherein: The operations also include: The third method is adopted to manage the target community; The third method includes at least one of the following: Triggering a random access process to the target cell; Sending uplink data on the preconfigured uplink resources by the transceiver; Monitor the physical downlink control channel PDCCH in the target cell; When a valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources by the transceiver; When a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index; If a valid TA of the target cell is not obtained, a random access procedure is triggered to the target cell; Before accessing the target cell, sending first indication information to the network device through the transceiver, where the first indication information is used to indicate the target cell and / or target beam information; In the case of acquiring a valid TA of the target cell, before accessing the target cell, sending second indication information to the network device through the transceiver, where the second indication information is used to indicate the target cell and / or target beam information; Determine and obtain the TA of the target cell.
28. The cell management device according to claim 20, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
29. The cell management device according to claim 20, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: Determining at least one candidate cell to be evaluated; Determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition; The candidate cells to be evaluated include at least one of the following: The terminal obtains candidate cells of valid TA; A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set; The network configuration indication information indicates the candidate cells to be evaluated; All candidate cells configured by the network; All candidate cells associated with the execution condition.
30. The cell management device according to claim 20, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: According to a fourth manner, evaluating whether there is at least one target candidate cell that meets the execution condition; The fourth method includes at least one of the following: The media access control MAC entity of the terminal performs evaluation according to the information reported by the physical layer of the terminal; evaluating the physical layer of the terminal; The radio resource control RRC layer of the terminal performs evaluation according to the information reported by the bottom layer of the terminal.
31. A cell management device, the cell management device being a network device, comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: sending the execution condition via the transceiver; in, The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
32. The cell management device according to claim 31, wherein: The operations also include: Sending a first evaluation condition to a terminal through the transceiver; the first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
33. The cell management device according to claim 31, wherein: The operations also include: Sending a second evaluation condition to the terminal through the transceiver; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
34. The cell management device according to any one of claims 31 to 33, wherein: The operations also include: Sending configuration information via the transceiver; The configuration information includes at least one of the following: Preset time; Preset deviation value; Preset threshold; Preset number of beams; Preset times; Preset probability; Count the number of times; Cell measurement configuration information.
35. The cell management device according to claim 32 or 33, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal quality obtained after filtering the n beams included in the cell according to the first preset rule; The n beams are the first n beams ranked from high to low in signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
36. The cell management device according to claim 31, wherein: The operations also include at least one of the following: Receiving, by the transceiver, first indication information sent by the terminal before accessing the target cell, where the first indication information is used to indicate the target cell and / or target beam information; Through the transceiver, the receiving terminal sends second indication information before accessing the target cell when a valid TA of the target cell is acquired, where the second indication information is used to indicate the target cell and / or target beam information.
37. The cell management device according to claim 31, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
38. The cell management device according to claim 31, wherein: The operations also include at least one of the following: Sending network configuration indication information to the terminal through the transceiver, where the network configuration indication information is used to indicate a candidate cell to be evaluated; configuring candidate cells for the terminal via the transceiver; The candidate cell configuration associated with the execution condition is sent to the terminal through the transceiver.
39. A cell management device, applied to a terminal, comprising: A first acquisition unit, used for acquiring an execution condition; The first processing unit is configured to evaluate whether there is at least one target candidate that meets the execution condition. Select a neighborhood; a first determining unit, configured to determine a target cell if the at least one target candidate cell exists, and / or determine a target beam of the target cell; The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
40. The cell management device according to claim 39, wherein: In a case where the first evaluation condition is met, determining the candidate cell as a target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
41. The cell management device according to claim 39, wherein: If the second evaluation condition is met, determining that the candidate cell does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
42. The cell management device according to any one of claims 39 to 41, wherein: Also includes: The second acquisition unit is used to acquire configuration information; wherein the configuration information includes at least one of the following: preset time; preset deviation value; preset threshold; preset number of beams; preset number of times; preset probability; statistical number of times; cell measurement configuration information.
43. The cell management device according to claim 40 or 41, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal qualities of n beams contained in the cell obtained after filtering according to the first preset rule; the n beams are the beams ranked in the top n positions in descending order of signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
44. The cell management device according to claim 40, wherein: The determining of the target cell includes: According to the first manner, determining a target cell from the at least one target candidate cell; The first method includes at least one of the following: Selecting a target cell based on the terminal; Select the cell where the beam with the highest signal quality is located as the target cell; Selecting a cell with the largest number of beams that meets the execution condition as the target cell; Selecting a cell with the highest signal quality obtained after filtering the beam signal quality according to a fourth preset rule as the target cell; Selecting at least one of the target candidate cells as a target cell; The cell with the best cell-level measurement result based on layer 3 measurement is selected as the target cell.
45. The cell management device according to claim 40, wherein: The determining a target beam of a target cell includes: According to the second method, determining a target beam of the target cell; The second method includes at least one of the following: Select the beam with the best signal quality in the target cell as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a fifth preset rule within a first preset time is selected as the target beam; Among the beams included in the target cell, a beam with the best signal quality obtained after filtering according to a sixth preset rule within a first preset number of times is selected as the target beam; Among the beams included in the target cell, select a beam that meets the execution condition and reaches the terminal first as the target beam; Selecting a target beam among beams included in the target cell based on the terminal implementation; Among the beams included in the target cell, select a beam that meets the execution condition and is associated with a pre-configured uplink resource as the target beam; Among the beams included in the target cell, select the beam that meets the execution condition and is associated with the preconfigured uplink resources and reaches the terminal first as the target beam; Among the beams included in the target cell, a beam that meets the execution condition is selected as the target beam.
46. The cell management device according to claim 39, wherein: It also includes: a second processing unit, which manages the target cell using a third method; The third method includes at least one of the following: Triggering a random access process to the target cell; Sending uplink data on the preconfigured uplink resources; Monitor the physical downlink control channel PDCCH in the target cell; When a valid timing advance TA of the target cell is obtained, uplink data is sent on the pre-configured uplink resources; When a valid TA of the target cell is obtained, the PDCCH is monitored according to the target transmission configuration indication TCI or target beam index; If a valid TA of the target cell is not obtained, a random access procedure is triggered to the target cell; Before accessing the target cell, sending first indication information to the network device, where the first indication information is used to indicate the target cell and / or target beam information; In the case of acquiring a valid TA of the target cell, before accessing the target cell, sending second indication information to the network device, where the second indication information is used to indicate the target cell and / or target beam information; Determine and obtain the TA of the target cell.
47. The cell management device according to claim 39, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
48. The cell management device according to claim 39, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: Determining at least one candidate cell to be evaluated; Determining, from the at least one candidate cell to be evaluated, whether there is at least one target candidate cell that meets the execution condition; The candidate cells to be evaluated include at least one of the following: The terminal obtains candidate cells of valid TA; A candidate cell for pre-configured uplink resources for the terminal to send first uplink data is set; The network configuration indication information indicates the candidate cells to be evaluated; All candidate cells configured by the network; All candidate cells associated with the execution condition.
49. The cell management device according to claim 39, wherein: The evaluating whether there is at least one target candidate cell that meets the execution condition includes: According to a fourth manner, evaluating whether there is at least one target candidate cell that meets the execution condition; The fourth method includes at least one of the following: The media access control MAC entity of the terminal performs evaluation according to the information reported by the physical layer of the terminal; evaluating the physical layer of the terminal; The radio resource control RRC layer of the terminal performs evaluation according to the information reported by the bottom layer of the terminal.
50. A cell management device, applied to a network device, wherein: include: A first sending unit, used for sending an execution condition; The execution condition is a beam-level execution condition based on layer 1 measurement configuration.
51. The cell management device according to claim 50, wherein: Also includes: A second sending unit, configured to send the first evaluation condition to the terminal; The first evaluation condition is used by the terminal to determine at least one target candidate cell that meets the execution condition; The first evaluation condition includes at least one of the following: The serving cell beam signal quality is less than a first preset threshold and satisfies a first preset condition; or, the serving cell beam signal quality is less than or equal to the first preset threshold and satisfies the first preset condition; The beam signal quality of the candidate cell is greater than the second preset threshold and satisfies the second preset condition; or, the beam signal quality of the candidate cell is greater than or equal to the second preset threshold and satisfies the second preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than a third preset threshold and satisfies a third preset condition; or, the difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least greater than or equal to a third preset threshold and satisfies a third preset condition; The serving cell beam signal quality is greater than a fourth preset threshold and satisfies a fourth preset condition; or, the serving cell beam signal quality is greater than or equal to a fourth preset threshold and satisfies a fourth preset condition; The beam signal quality of the candidate cell is less than the fifth preset threshold and meets the fifth preset condition; or, the beam signal quality of the candidate cell is less than or equal to the fifth preset threshold and meets the fifth preset condition.
52. The cell management device according to claim 50, wherein: It also includes: a third sending unit, configured to send a second evaluation condition to the terminal; the second evaluation condition is used by the terminal to determine at least one target candidate cell that does not meet the execution condition; The second evaluation condition includes at least one of the following: The serving cell beam signal quality is greater than a sixth preset threshold and satisfies a sixth preset condition; The beam signal quality of the candidate cell is less than a seventh preset threshold and satisfies a seventh preset condition; The difference between the beam signal quality of the candidate cell and the beam signal quality of the serving cell is at least less than an eighth preset threshold and satisfies an eighth preset condition; The serving cell beam signal quality is less than a ninth preset threshold and satisfies a ninth preset condition; The beam signal quality of the candidate cell is greater than a tenth preset threshold and meets a tenth preset condition.
53. The cell management device according to any one of claims 50 to 52, wherein: The method further comprises: a fourth sending unit, configured to send configuration information; The configuration information includes at least one of the following: Preset time; Preset deviation value; Preset threshold; Preset number of beams; Preset times; Preset probability; Count the number of times; Cell measurement configuration information.
54. The cell management device according to claim 51 or 52, wherein: The cell beam signal quality is the serving cell beam signal quality or the candidate cell beam signal quality; The cell beam signal quality includes at least one of the following: The signal quality of the beam with the best signal quality contained in the cell; The beam signal qualities of n beams contained in the cell obtained after filtering according to the first preset rule; the n beams are the beams ranked in the top n positions in descending order of signal quality; The beam signal quality obtained after the beams whose signal quality contained in the cell is higher than the eleventh preset threshold are filtered according to the second preset rule; beam signal quality obtained by filtering a first number of first beams contained in the cell according to a third preset rule; the first number is less than or equal to m, and the signal quality of the first beam is higher than a twelfth preset threshold; The signal quality of any beam contained in the cell; beam signal quality obtained by filtering all beams of the cell measured by the terminal according to a seventh preset rule; The signal quality of the beam with the worst signal quality among the second beams contained in the cell; the signal quality of the second beam is higher than a thirteenth preset threshold.
55. The cell management device according to claim 50, wherein: The device further includes a first receiving unit, configured to perform at least one of the following: The receiving terminal sends first indication information before accessing the target cell, wherein the first indication information Used to indicate target cell and / or target beam information; The receiving terminal sends second indication information before accessing the target cell when acquiring a valid TA of the target cell, wherein the second indication information is used to indicate the target cell and / or target beam information.
56. The cell management device according to claim 50, wherein: The execution condition is configured for each cell separately, or configured for all cells together, or configured for each cell group separately.
57. The cell management device according to claim 50, wherein: The device further includes a fifth sending unit, configured to perform at least one of the following: Sending network configuration indication information to the terminal, where the network configuration indication information is used to indicate a candidate cell to be evaluated; Configuring candidate cells for the terminal; Sending a candidate cell configuration associated with the execution condition to the terminal.
58. A non-transitory readable storage medium, wherein: The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 19.
Citation Information
Patent Citations
Cell switching method and device and readable medium
CN111479289A
Cell and beam selection for conditional handover procedure
CN113508617A
Methods and nodes for measuring a serving cell in l1 / l2-centric mobility
WO2022074602A1
L1 l2 based inter-cell mobility
WO2022205034A1
Condition reconfiguration method and device
WO2022205389A1