CN-122002423-A - Cell selection or cell reselection method, communication device, communication system, and storage medium

Abstract

The disclosure provides a cell selection or cell reselection method, communication equipment, a communication system and a storage medium, wherein the method comprises the steps of determining a communication scene of a terminal, wherein different communication scenes correspond to one or more cells respectively, the cells corresponding to the communication scenes are used for providing communication services for the terminal in the communication scenes, the terminal meets a first condition, determining a first cell, wherein the first condition is used for triggering the terminal to perform cell selection or cell reselection, the first cell is a non-serving cell of the terminal, the communication scene corresponding to the first cell is identical to the communication scene of the terminal, and a first request is sent to network equipment corresponding to the first cell and used for requesting access to the first cell. The method and the device can ensure the communication performance, the communication efficiency and the communication stability of the terminal, and can also reduce the signaling overhead.

Inventors

• CHEN DONG
• SUN DALIANG

Assignees

• 北京小米移动软件有限公司

Dates

Publication Date

20260508

Application Date

20241106

Claims (20)

1. 1. A method of cell selection or cell reselection, performed by a terminal, the method comprising: determining a communication scene of the terminal, wherein different communication scenes respectively correspond to one or more cells, and the corresponding cells of the communication scene are used for providing communication services for the terminal in the communication scene; The terminal meets a first condition, and a first cell is determined, wherein the first condition is used for triggering the terminal to conduct cell selection or cell reselection, the first cell is a non-service cell of the terminal, and a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located; and sending a first request to network equipment corresponding to the first cell, wherein the first request is used for requesting to access the first cell.
2. 2. The method of claim 1, wherein the communication scenario comprises at least one of a first communication scenario, in which a movement speed of the terminal is greater than a movement speed of the terminal in the second communication scenario, a cell corresponding to the first communication scenario being different from a cell corresponding to the second communication scenario.
3. 3. The method of claim 2, wherein the cell corresponding to the first communication scenario is different from the cell corresponding to the second communication scenario, comprising at least one of: the cell identification of the cell corresponding to the first communication scene accords with a first rule, and the cell identification of the cell corresponding to the second communication scene does not accord with the first rule; The synchronous signal SS of the cell corresponding to the first communication scene is a first type SS, and the SS of the cell corresponding to the second communication scene is not the first type SS.
4. 4. The method of claim 3, wherein the cell identity determined by the first class SS conforms to the first rule.
5. 5. The method of claim 3 or 4, wherein the first rule comprises N ID (1) modK = W, the N ID (1) is a cell identity, the mod function is a remainder function, and the K, W is a positive integer.
6. 6. The method of any one of claims 1-5, wherein the method further comprises: at least one of a first rule and a first corresponding relation is determined, wherein the first corresponding relation comprises corresponding relations between different communication scenes and cell identifications of different cells.
7. 7. The method of claim 6, wherein the determining at least one of the first rule, the first correspondence, comprises one or more of: receiving at least one of the first rule and the first corresponding relation sent by a network operator; determining at least one of the first rule and the first corresponding relation based on a historical communication scene and a historical access cell of the terminal; Receiving at least one of the first rule and the first corresponding relation sent by an OTT Server of an upper layer Server of the Internet; Determining at least one of the first rule and the first corresponding relation based on protocol convention; And receiving at least one of the first rule and the first corresponding relation sent by the network equipment.
8. 8. The method of any one of claims 1-7, wherein the first condition comprises at least one of: the signal quality of a serving cell of the terminal is lower than a first threshold; the signal quality of the neighbor cell of the terminal is higher than a second threshold; the communication scene of the terminal is different from the communication scene corresponding to the service cell of the terminal; the terminal has to be switched from the non-connected state to the connected state.
9. 9. The method according to any one of claims 3-8, wherein the communication scenario in which the terminal is located is the first communication scenario, and the first cell satisfies at least one of that the first cell belongs to a neighboring cell of the terminal, that a cell identifier of the first cell conforms to the first rule, that an SS of the first cell is the first type SS, that a communication scenario corresponding to the first cell is the first communication scenario, and that a signal quality of the first cell is higher than a third threshold; the communication scene where the terminal is located is the second communication scene, and the first cell meets at least one of the following conditions that the first cell belongs to a neighboring cell of the terminal, the cell identification of the first cell does not meet the first rule, the SS of the first cell is not the first type of SS, the communication scene corresponding to the first cell is the second communication scene, and the signal quality of the first cell is higher than a third threshold.
10. 10. The method of any one of claims 2-8, wherein the method further comprises: And determining at least one of cell identification of one or more second cells and positions of the one or more second cells, wherein the second cells comprise cells which are accessed by the terminal in a history manner and correspond to the first communication scene.
11. 11. The method of claim 10, wherein the communication scenario in which the terminal is located is the first communication scenario, and the first cell satisfies at least one of the first cell belonging to a neighbor cell of the terminal, the first cell belonging to the second cell, and a distance between a location of the first cell and a location of the terminal being less than a fourth threshold.
12. 12. The method of claims 2-8, wherein the method further comprises: Determining a first movement track, wherein the first movement track comprises a movement track of the terminal history in the first communication scene; determining a cell which is accessed by the terminal in the first moving track in a history way as a second cell; at least one of a cell identity of the one or more second cells, a location of the one or more second cells is determined.
13. 13. The method of claim 12, wherein the determining the first cell comprises: determining whether the terminal is to move according to the first movement track; The terminal moves according to the first moving track, a first cell is determined, and the first cell meets at least one of the following conditions that the first cell belongs to a neighboring cell of the terminal, the first cell belongs to a second cell corresponding to the first moving track, and the distance between the position of the first cell and the position of the terminal is smaller than a fourth threshold value.
14. 14. The method according to any one of claims 1-13, wherein the determining a communication scenario in which the terminal is located comprises: And determining a communication scene where the terminal is located based on at least one of the moving speed of the terminal and the moving track of the terminal.
15. 15. A method of cell selection or cell reselection, performed by a network device, the method comprising: Receiving a first request sent by a terminal, where the first request is used for requesting to access a first cell, the first cell is a cell corresponding to the network device, the first cell is a non-serving cell of the terminal, a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located, the first cell is determined by the terminal when the terminal meets a first condition, and the first condition is used for triggering the terminal to perform cell selection or cell reselection.
16. 16. The method of claim 15, wherein different communication scenarios correspond to one or more cells, respectively, the cells corresponding to the communication scenarios being used to provide communication services for terminals in the communication scenarios; the communication scene comprises at least one of a first communication scene and a second communication scene, the moving speed of the terminal in the first communication scene is larger than that of the terminal in the second communication scene, and a cell corresponding to the first communication scene is different from a cell corresponding to the second communication scene.
17. 17. The method of claim 16, wherein the cell corresponding to the first communication scenario is different from the cell corresponding to the second communication scenario, comprising at least one of: the cell identification of the cell corresponding to the first communication scene accords with a first rule, and the cell identification of the cell corresponding to the second communication scene does not accord with the first rule; The synchronous signal SS of the cell corresponding to the first communication scene is a first type SS, and the SS of the cell corresponding to the second communication scene is not the first type SS.
18. 18. The method of claim 17, wherein the cell identity determined by the first class SS conforms to the first rule.
19. 19. The method of claim 17 or 18, wherein the first rule comprises N ID (1) mod K = W, the N ID (1) is a cell identity, the mod function is a remainder function, and the K, W is a positive integer.
20. 20. The method of any one of claims 15-19, wherein the method further comprises: at least one of a first rule and a first corresponding relation is determined, wherein the first corresponding relation comprises corresponding relations between different communication scenes and cell identifications of different cells.

Description

Cell selection or cell reselection method, communication device, communication system, and storage medium Technical Field The present disclosure relates to the field of communications technologies, and in particular, to a cell selection or cell reselection method, a communications device, a communications system, and a storage medium. Background When a user takes a high-speed moving vehicle (such as a high-speed rail, a train, a vehicle and a magnetic levitation train), the terminal carried by the user is in a high-speed moving state. Among them, how to communicate with a terminal in a high-speed state is a problem to be solved. Disclosure of Invention The present disclosure proposes a cell selection or cell reselection method, a communication device, a communication system, a storage medium. According to a first aspect of embodiments of the present disclosure, a cell selection or cell reselection method is provided, which is performed by a terminal, including: determining a communication scene of the terminal, wherein different communication scenes respectively correspond to one or more cells, and the corresponding cells of the communication scene are used for providing communication services for the terminal in the communication scene; The terminal meets a first condition, and a first cell is determined, wherein the first condition is used for triggering the terminal to conduct cell selection or cell reselection, the first cell is a non-service cell of the terminal, and a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located; and sending a first request to network equipment corresponding to the first cell, wherein the first request is used for requesting to access the first cell. According to a second aspect of embodiments of the present disclosure, there is provided a cell selection or cell reselection method performed by a network device, the method comprising: Receiving a first request sent by a terminal, where the first request is used for requesting to access a first cell, the first cell is a cell corresponding to the network device, the first cell is a non-serving cell of the terminal, a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located, the first cell is determined by the terminal when the terminal meets a first condition, and the first condition is used for triggering the terminal to perform cell selection or cell reselection. According to a third aspect of embodiments of the present disclosure, a cell selection or cell reselection method is provided for a communication system, the communication system including a network device, a terminal, the method comprising: the terminal determines a communication scene in which the terminal is located, wherein different communication scenes respectively correspond to one or more cells, and the cell corresponding to the communication scene is used for providing communication service for the terminal in the communication scene; The terminal meets a first condition, and the terminal determines a first cell, wherein the first condition is used for triggering the terminal to perform cell selection or cell reselection, the first cell is a non-service cell of the terminal, and a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located; And the terminal sends a first request to network equipment corresponding to the first cell, wherein the first request is used for requesting to access the first cell. According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal, including: The processing module is used for determining a communication scene of the terminal, wherein different communication scenes respectively correspond to one or more cells, and the corresponding cells of the communication scenes are used for providing communication services for the terminal in the communication scenes; The processing module is further configured to determine a first cell when the terminal meets a first condition, where the first condition is used to trigger the terminal to perform cell selection or cell reselection, the first cell is a non-serving cell of the terminal, and a communication scene corresponding to the first cell is the same as a communication scene where the terminal is located; and the receiving and transmitting module is used for sending a first request to network equipment corresponding to the first cell, wherein the first request is used for requesting to access the first cell. According to a fifth aspect of embodiments of the present disclosure, there is provided a network device, comprising: the processing module is used for receiving a first request sent by a terminal, wherein the first request is used for requesting to access a first cell, the first cell is a cell corresponding to the network equipment, the first cell is a non-ser