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CN-115280843-B - Cell reselection method, terminal equipment and network equipment

CN115280843BCN 115280843 BCN115280843 BCN 115280843BCN-115280843-B

Abstract

The method for reselecting the cell, the terminal equipment and the network equipment are favorable for reselecting the cell meeting the network slicing requirement of the terminal equipment so as to improve the user experience, and the method comprises the steps that the terminal equipment reselects the cell according to first information; the first information includes at least one of network slice information, frequency point priority information and channel quality information of at least one cell of the terminal equipment, wherein the frequency point priority information is used for indicating priority information of a frequency point or a cell, and the at least one cell includes a serving cell and/or a neighbor cell of the terminal equipment.

Inventors

  • FU ZHE
  • LU QIANXI
  • XU YANG

Assignees

  • OPPO广东移动通信有限公司
  • OPPO广东移动通信有限公司

Dates

Publication Date
20260421
Application Date
20200716
Priority Date
20200716

Claims (20)

  1. 1. A method for cell reselection, characterized in that, Comprising the following steps: The terminal equipment performs cell reselection according to the first information; Wherein the first information includes network slice information of the terminal device, frequency point priority information and channel quality information of at least one cell, the network slice information of the terminal device is network slice information supported by the terminal device or network slice information selected by the terminal device, the frequency point priority information is used for indicating priority information of a frequency point or a cell, the at least one cell includes a serving cell and/or a neighboring cell of the terminal device, The frequency point priority information is first class frequency point priority information or second class frequency point priority information, the first class frequency point priority information comprises priority information of at least one frequency point or cell, the second class frequency point priority information comprises priority information of at least one frequency point or cell corresponding to at least one network slice, The method further comprises the steps of: when the second class frequency point priority information is configured and the terminal equipment performs cell reselection according to a specific network slice, the terminal equipment performs cell reselection according to the second class frequency point priority information corresponding to a frequency point of the specific network slice, or when the second class frequency point priority information is configured and the terminal equipment determines to use the second class frequency point priority information according to network indication information, the terminal equipment performs cell reselection according to the second class frequency point priority information corresponding to a frequency point of the specific network slice; Wherein the particular network slice comprises at least one of: Any one of the network slice information of the terminal equipment; the network slice with the highest priority in the network slice information of the terminal equipment; And the network slice supported by the service cell is matched with the network slice information of the terminal equipment and has the highest priority.
  2. 2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The network slice information of the terminal device includes at least one of the following: Identification information of the network slice; frequency point information corresponding to the network slice; Cell information corresponding to the network slice; Priority information corresponding to the network slice; And weight information corresponding to the network slice.
  3. 3. A method according to claim 1 or 2, characterized in that, The first information further includes network slice information supported by the serving cell and/or network slice information supported by the neighbor cell.
  4. 4. The method of claim 1, wherein the step of determining the position of the substrate comprises, The network slice information supported by the serving cell includes at least one of: Identification information of the network slice supported by the serving cell; The frequency point information corresponding to the network slice supported by the serving cell; Cell information corresponding to the network slice supported by the serving cell; priority information corresponding to the network slice supported by the serving cell; and the weight information corresponding to the network slice supported by the service cell.
  5. 5. The method according to claim 1 or 4, wherein, The network slice information supported by the neighbor cell comprises at least one of the following: Identification information of the network slice supported by the neighbor cell; the adjacent cell supports the corresponding frequency point information of the network slice; cell information corresponding to the network slice supported by the neighbor cell; priority information corresponding to the network slice supported by the neighbor cell; and the weight information corresponding to the network slice supported by the adjacent cell.
  6. 6. The method according to any one of claims 1,2, 4, The first information further comprises a cell reselection parameter, wherein the cell reselection parameter is a first type cell reselection parameter or a second type cell reselection parameter; wherein the first type of cell reselection parameters are uncorrelated with the network slice, including at least one of the cell reselection parameters in the broadcast message; The second type cell reselection parameters are at least one group, each group of the second type cell reselection parameters corresponds to one or more network slices, or the at least one group of the second type cell reselection parameters corresponds to at least one network slice or at least one network slice group, or the at least one group of the second type cell reselection parameters corresponds to all network slices, and the second type cell reselection parameters comprise at least one of the cell reselection parameters in a broadcast message.
  7. 7. The method of claim 6, wherein the step of providing the first layer comprises, The broadcast message includes at least one of a system information block SIB2, a system information block SIB3, a system information block SIB4, and a system information block SIB 5.
  8. 8. The method of claim 6, wherein the step of providing the first layer comprises, The cell reselection parameter comprises at least one of: The method comprises the steps of optimizing a cell range, a reference signal combining threshold, a cell reselection priority, a cell reselection sub-priority, a high priority relaxation measurement indication, the number of beams which can be used for reselection by the highest ranking cell, an offset between cells, a frequency offset of the same frequency point priority, a hysteresis value used for an R criterion, an additional offset used for cell selection or reselection, a required minimum quality level, a minimum receiving level and a receiving level offset.
  9. 9. The method of claim 6, wherein the step of providing the first layer comprises, When the terminal equipment is not configured with the at least one group of second-type cell reselection parameters, the terminal equipment performs cell reselection according to the first-type cell reselection parameters; And when the terminal equipment is configured with the at least one group of second-type cell reselection parameters, the terminal equipment performs cell reselection according to the first-type cell reselection parameters or the at least one group of second-type cell reselection parameters, or performs cell reselection according to the indication of the network equipment by using the at least one group of second-type cell reselection parameters.
  10. 10. The method according to any one of claims 1,2, 4, The terminal equipment performs cell reselection according to the first information, and the method comprises the following steps: The terminal equipment determines the target frequency point priority of at least one neighbor cell of the terminal equipment according to the frequency point priority information; and according to the target frequency point priority of the at least one adjacent cell, the network slice information of the terminal equipment and the channel quality information of the at least one adjacent cell perform cell reselection.
  11. 11. The method of claim 10, wherein the step of determining the position of the first electrode is performed, The target frequency point priority of the at least one neighboring cell is the same as the frequency point priority of the serving cell, and the cell reselection is performed according to the network slice information of the terminal device and the channel quality information of the at least one neighboring cell, including: The terminal equipment determines a first candidate cell set meeting network slicing conditions according to the network slicing information of the terminal equipment and the network slicing information supported by the at least one neighbor cell; And the terminal equipment determines a reselected target cell according to the channel quality information of the candidate cells in the first candidate cell set.
  12. 12. The method of claim 11, wherein the step of determining the position of the probe is performed, The terminal equipment determines a reselected target cell according to the channel quality information of the candidate cells in the first candidate cell set, and the method comprises the following steps: The terminal equipment determines a second candidate cell set according to the channel quality information of the candidate cells in the first candidate cell set and combining an optimal cell range or a first cell range; And determining a reselected target cell according to the second candidate cell set.
  13. 13. The method of claim 12, wherein the step of determining the position of the probe is performed, In the case that the terminal equipment is configured with the optimal cell range, the terminal equipment determines the second candidate cell set according to the optimal cell range; and under the condition that the terminal equipment is not configured with the optimal cell range, the terminal equipment determines the second candidate cell set according to the first cell range, or determines at least one candidate cell with the optimal channel quality in the first candidate cell set to form the second candidate cell set.
  14. 14. The method of claim 10, wherein the step of determining the position of the first electrode is performed, The target frequency point priority of the at least one neighboring cell is the same as the frequency point priority of the serving cell, and the cell reselection is performed according to the network slice information of the terminal device and the channel quality information of the at least one neighboring cell, including: determining a first candidate cell set according to the channel quality information of the at least one neighbor cell; determining a second candidate cell set meeting network slicing conditions according to the network slicing information supported by the candidate cells in the first candidate cell set and the network slicing information of the terminal equipment; And determining a reselected target cell according to the second candidate cell set.
  15. 15. The method of claim 14, wherein the step of providing the first information comprises, Determining a first candidate cell set according to the channel quality information of the at least one neighbor cell, including: and determining the first candidate cell set according to the channel quality information of the at least one adjacent cell and combining an optimal cell range or a first cell range.
  16. 16. The method of claim 14, wherein the step of providing the first information comprises, Under the condition that the terminal equipment is configured with an optimal cell range, the terminal equipment determines the first candidate cell set according to the optimal cell range; And under the condition that the terminal equipment is not configured with the optimal cell range, the terminal equipment determines the first candidate cell set according to the first cell range, or determines at least one candidate cell with optimal channel quality to form the first candidate cell set.
  17. 17. The method of claim 12, wherein the step of determining the position of the probe is performed, The determining a reselected target cell according to the second candidate cell set includes: Determining a reselected target cell in the second set of candidate cells according to at least one of: A reference signal combining threshold; network slice information supported by candidate cells in the second candidate cell set; channel quality information of candidate cells in the second set of candidate cells; A second cell range.
  18. 18. The method of claim 17, wherein the step of determining the position of the probe is performed, The second cell range is based on the candidate cell with the optimal channel quality in the second candidate cell set, or the candidate cell with the optimal channel quality and the largest number of beams meeting the reference signal combination threshold.
  19. 19. The method of claim 10, wherein the step of determining the position of the first electrode is performed, The target frequency point priority of the at least one neighboring cell is the same as the frequency point priority of the serving cell, and the cell reselection is performed according to the network slice information of the terminal device and the channel quality information of the at least one neighboring cell, including: determining a first candidate cell set according to the channel quality information of the at least one neighbor cell; determining a second candidate cell set according to the signal quality of the reference signals of the candidate cells in the first candidate cell set and a reference signal combination threshold; determining a third candidate cell set meeting network slicing conditions according to the network slicing information supported by the candidate cells in the second candidate cell set and the network slicing information of the terminal equipment; and determining a reselected target cell according to the third candidate cell set.
  20. 20. The method of claim 13, wherein the step of determining the position of the probe is performed, The first cell range is based on the candidate cell with the optimal channel quality in the first candidate cell set, or the candidate cell with the optimal channel quality and the largest number of beams meeting the reference signal combination threshold.

Description

Cell reselection method, terminal equipment and network equipment Technical Field The embodiment of the application relates to the field of communication, in particular to a cell reselection method, terminal equipment and network equipment. Background In the 5G system, a Network architecture of Network Slice (NS) is proposed to cope with the difference of user demands, and in particular, different Network handover may support different types of services. In the related art, the terminal device may perform cell reselection based on the cell reselection measurement criteria and the cell reselection criteria, and perform cell reselection based on the criteria, where the terminal device reselects to a cell with high channel quality. However, if the service of the terminal device is a service related to network slicing, cell reselection is performed according to the criteria, which may affect service transmission of the terminal and affect user experience. Disclosure of Invention The embodiment of the application provides a cell reselection method and terminal equipment, which are favorable for reselecting cells meeting the network slicing requirement of the terminal equipment, thereby improving the user experience. In a first aspect, a method for cell reselection is provided, which includes that a terminal device performs cell reselection according to first information, wherein the first information includes at least one of network slice information, frequency point priority information and channel quality information of at least one cell of the terminal device, the frequency point priority information is used for indicating priority information of a frequency point or a cell, and the at least one cell includes a serving cell and/or a neighbor cell of the terminal device. In a second aspect, a method for cell reselection is provided, including that a network device sends second information to a terminal device, where the second information is used to indicate information related to network slicing, and the second information is used for cell reselection by the terminal device. In a third aspect, a terminal device is provided for performing the method of the first aspect or any possible implementation of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect. In a fourth aspect, a network device is provided for performing the method of the second aspect or any possible implementation of the second aspect. In particular, the network device comprises means for performing the method of the second aspect or any of the possible implementations of the second aspect. In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof. In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above. A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device on which the chip is installed performs the method as in any one of the above-mentioned first to second aspects or implementations thereof. In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof. In a ninth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof. In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof. Based on the technical scheme, when the cell is reselected, the terminal equipment can perform cell reselection evaluation based on the network slice information, the frequency point priority information and the channel quality of the cell of the terminal equipment, so that the cell with excellent channel quality and meeting the network slice requirement of the terminal equipment can be reselected, and the user experience can be improved. Drawings Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application. Fig. 2 is a schematic diagram of a met