US-12621759-B2 - Cell determination method and cell determination apparatus

US12621759B2US 12621759 B2US12621759 B2US 12621759B2US-12621759-B2

Abstract

A cell determination method is performed by a terminal, and includes: receiving slice-related information from a non-access stratum through an access stratum; and performing at least one of a cell selection or a cell reselection based on the slice-related information.

Inventors

Xiaofei Liu

Assignees

BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20200806

Claims (20)

1 . A cell determination method, performed by a terminal, comprising: performing at least one of a cell selection or a cell reselection based on slice-related information, wherein the slice-related information is received by an access stratum from a non-access stratum, and the slice-related information comprises a slice priority relation of multiple slices, wherein performing at least one of the cell selection or the reselection based on the slice-related information comprises: determining a first frequency priority relation of multiple frequencies related with the multiple slices based on the slice priority relation; and performing the at least one of the cell selection or the cell reselection based on the first frequency priority relation and a second frequency priority relation received from a base station, comprising: determining a target frequency priority relation based on the first frequency priority relation and the second frequency priority relation; and performing the at least one of the cell selection or the cell reselection based on the target frequency priority relation; wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a broadcast message of the base station, determining priorities of frequencies in the first frequency priority relation being higher than priorities of frequencies in the second frequency priority relation; wherein determining the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation comprises: determining overlap frequencies between the frequencies in the first frequency priority relation and the frequencies in the second frequency priority relation; and determining priorities of the overlap frequencies based on the first frequency priority relation, and determining the priorities of the overlap frequencies being higher than the priorities of other frequencies in the second frequency priority relation.
2 . The method of claim 1 , wherein the slice-related information comprises at least one of requested network slice selection assistance information or allowed network slice selection assistance information.
3 . The method of claim 2 , wherein at least one of the requested network slice selection assistance information or the allowed network slice selection assistance information is provided to the access stratum by the non-access stratum in a case where the terminal sends an initial non-access stratum message.
4 . The method of claim 2 , wherein at least one of the requested network slice selection assistance information or the allowed network slice selection assistance information is provided to the access stratum by the non-access stratum in a case where the terminal sends a non-access stratum message so as to update registered slices.
5 . The method of claim 1 , wherein the slice-related information comprises pre-configured network slice selection assistance information provided by the non-access stratum to the access stratum when selecting a public land mobile network.
6 . The method of claim 1 , further comprising: determining a third frequency priority relation of a frequency related with each slice; wherein determining the first frequency priority relation based on the slice priority relation comprises: for the frequency related with each slice, determining a priority of the frequency related with a high priority slice being higher than a priority of the frequency related with a low priority slice; and determining a priority of the frequency related with the slice based on the third frequency priority relation.
7 . The method of claim 6 , further comprising: in a case of a conflict between the slice priority relation determined based on a policy of the terminal and the slice priority relation determined based on a priority of applications in the terminal indicated by a first non-access stratum message, selecting the slice priority relation determined based on the policy of the terminal or the slice priority relation determined based on the priority of applications in the terminal indicated by the first non-access stratum message based on a second non-access stratum message.
8 . The method of claim 1 , wherein the slice priority relation is determined based on at least one of a policy of the terminal or a priority of applications in the terminal indicated by a first non-access stratum message.
9 . The method of claim 1 , wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a first dedicated signaling sent by the base station to the terminal, determining the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation.
10 . The method of claim 1 , wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a first dedicated signaling sent by the base station to the terminal, determining the priorities of the frequencies in the second frequency priority relation being higher than the priorities of the frequencies in the first frequency priority relation.
11 . The method of claim 1 , wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a first dedicated signaling sent by the base station to the terminal, determining the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation, or determining the priorities of the frequencies in the second frequency priority relation being higher than the priorities of the frequencies in the first frequency priority relation based on a second dedicated signaling sent by the base station to the terminal.
12 . An electronic device being a terminal, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to: perform at least one of a cell selection or a cell reselection based on slice-related information, wherein the slice-related information is received by an access stratum from a non-access stratum, and the slice-related information comprises a slice priority relation of multiple slices, and the processor is configured to perform at least one of the cell selection or the reselection based on the slice-related information by: determining a first frequency priority relation of multiple frequencies related with the multiple slices based on the slice priority relation; and performing at least one of the cell selection or the cell reselection based on the first frequency priority relation and a second frequency priority relation received from a base station, comprising: determining a target frequency priority relation based on the first frequency priority relation and the second frequency priority relation; and performing the at least one of the cell selection or the cell reselection based on the target frequency priority relation; wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a broadcast message of the base station, determining priorities of frequencies in the first frequency priority relation being higher than priorities of frequencies in the second frequency priority relation; wherein determining the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation comprises: determining overlap frequencies between the frequencies in the first frequency priority relation and the frequencies in the second frequency priority relation; and determining priorities of the overlap frequencies based on the first frequency priority relation, and determining the priorities of the overlap frequencies being higher than the priorities of other frequencies in the second frequency priority relation.
13 . The electronic device of claim 12 , wherein the slice-related information comprises at least one of requested network slice selection assistance information or allowed network slice selection assistance information.
14 . The electronic device of claim 12 , wherein the slice-related information comprises pre-configured network slice selection assistance information provided by the non-access stratum to the access stratum in a case of selecting a public land mobile network.
15 . The electronic device of claim 12 , wherein the processor is further configured to: determine a third frequency priority relation of a frequency related with each slice; wherein in determining the first frequency priority relation based on the slice priority relation, the processor is configured to: for the frequency related with each slice, determine a priority of the frequency related with a high priority slice being higher than a priority of the frequency related with a low priority slice; and determine a priority of the frequency related with the slice based on the third frequency priority relation.
16 . The electronic device of claim 15 , wherein the processor is further configured to: in a case of a conflict between the slice priority relation determined based on a policy of the terminal and the slice priority relation determined based on a priority of applications in the terminal indicated by a first non-access stratum message, select the slice priority relation determined based on the policy of the terminal or the slice priority relation determined based on the priority of applications in the terminal indicated by the first non-access stratum message based on a second non-access stratum message.
17 . The electronic device of claim 12 , wherein the slice priority relation is determined based on at least one of a policy of the terminal or a priority of applications in the terminal indicated by a first non-access stratum message.
18 . The electronic device of claim 12 , wherein in determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation, the processor is further configured to: in a case where the second frequency priority relation is carried in a first dedicated signaling sent by the base station to the terminal, determine the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation.
19 . The electronic device of claim 12 , wherein in determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation, the processor is further configured to: in a case where the second frequency priority relation is carried in a first dedicated signaling sent by the base station to the terminal, determine the priorities of the frequencies in the second frequency priority relation being higher than the priorities of the frequencies in the first frequency priority relation.
20 . A communication system, comprising a terminal and a base station, wherein the terminal communicates with the base station, and is configured to: perform at least one of a cell selection or a cell reselection based on slice-related information, wherein the slice-related information is received by an access stratum from a non-access stratum, and the slice-related information comprises a slice priority relation of multiple slices; wherein the terminal is configured to perform at least one of the cell selection or the reselection based on the slice-related information by: determining a first frequency priority relation of multiple frequencies related with the multiple slices based on the slice priority relation; and performing at least one of the cell selection or the cell reselection based on the first frequency priority relation and a second frequency priority relation received from a base station, comprising: determining a target frequency priority relation based on the first frequency priority relation and the second frequency priority relation; and performing the at least one of the cell selection or the cell reselection based on the target frequency priority relation; wherein determining the target frequency priority relation based on the first frequency priority relation and the second frequency priority relation comprises: in a case where the second frequency priority relation is carried in a broadcast message of the base station, determining priorities of frequencies in the first frequency priority relation being higher than priorities of frequencies in the second frequency priority relation; wherein determining the priorities of the frequencies in the first frequency priority relation being higher than the priorities of the frequencies in the second frequency priority relation comprises: determining overlap frequencies between the frequencies in the first frequency priority relation and the frequencies in the second frequency priority relation; and determining priorities of the overlap frequencies based on the first frequency priority relation, and determining the priorities of the overlap frequencies being higher than the priorities of other frequencies in the second frequency priority relation.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a U.S. national phase of International Application No. PCT/CN2020/107543, filed Aug. 6, 2020, the entire content of which is incorporated herein by reference. TECHNICAL FIELD The disclosure relates to the field of communication technologies, and provides a cell determination method, a cell determination apparatus, an electronic device and a computer-readable storage medium. BACKGROUND When a terminal selects or reselects a cell, a cell to be accessed is determined based on the frequency priorities. For example, a base station can send the frequency priorities to the terminal via a broadcast message or configure the frequency priorities for the terminal via a dedicated signaling, so that the terminal may determine the frequencies of multiple cells and select a suitable cell with a higher priority frequency to access. Generally, the cell is selected or reselected based on the frequency priorities broadcasted or configured by the base station, which may not take actual situation of the terminal into consideration, thereby making selecting or reselecting a cell unreasonable. SUMMARY The disclosure provide a cell determination method, a cell determination apparatus, an electronic device and a non-transitory computer-readable storage medium. According to a first aspect of the disclosure, a cell determination method, performed by a terminal, is provided. The method includes: receiving slice-related information from a non-access stratum by an access stratum; andperforming a cell selection and/or a cell reselection based on the slice-related information. According to a second aspect of the disclosure, an electronic device is provided. The electronic device includes: a processor;a memory for storing instructions executable by the processor; in whichthe processor is configured to implement the above cell determination method. According to a third aspect of the disclosure, a non-transitory computer readable storage medium storing computer programs is provided. When the computer programs are executed by a processor, the above cell determination method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS In order to clearly illustrate the technical solution of the embodiments of the disclosure, a brief description of drawings used in the embodiments is given below. Obviously, the drawings in the following descriptions are only part of the embodiments of the disclosure, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive works. FIG. 1 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 2 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 2A is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 3 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 4 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 5 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 6 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 7 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 8 is a flowchart of a cell determination method according to the embodiment of the disclosure. FIG. 9 is a block diagram of a cell determination apparatus according to the embodiment of the disclosure. FIG. 10 is a block diagram of a cell determination apparatus according to the embodiment of the disclosure. FIG. 11 is a block diagram of a cell determination apparatus according to the embodiment of the disclosure. FIG. 12 is a block diagram of a cell determination apparatus according to the embodiment of the disclosure. FIG. 13 is a block diagram of a device for determining a cell according to the embodiment of the disclosure. DETAILED DESCRIPTION Reference will be made clearly and completely in the technical solution of the embodiments of the disclosure with the accompanying drawings. Obviously, the embodiments described here are only part of the embodiments of the disclosure and are not all embodiments of the disclosure. Based on the embodiments of the disclosure, other embodiments obtained by those skilled in the art without inventive works are within the scope of the disclosure. FIG. 1 is a flowchart of a cell determination method according to the embodiment of the disclosure. The method shown in this embodiment may be applicable to a terminal, which includes, but is not limited to, a cell phone, a tablet computer, a wearable device, a sensor, an Internet of Things (IoT) device and other electronic devices. The terminal may communicate with a base station as a user equipment, and the base station includes but is not limited to a 4G base station, a 5G base station, and a 6G base station. As s