Method for selecting initial bandwidth part (BWP), terminal device and network device
View Patent ↗Provided are a method for selecting an initial bandwidth part (BWP), a terminal device and a network device. The method includes: determining, by a terminal device, a target initial BWP among a plurality of initial BWPs for a first cell according to measurement results of a plurality of reference signal beams in the first cell. Each initial BWP in the plurality of initial BWPs is associated with at least one reference signal beam, and the first cell is a cell which the terminal device currently camps on.
1 . A method for selecting an initial Bandwidth Part (BWP), comprising: receiving, by a terminal device in a non-connected state, initial BWP selection configuration information sent from a network device, wherein the initial BWP selection configuration information is used to configure a plurality of initial BWPs for the terminal device to perform initial access, and the initial BWP selection configuration information comprises an association relationship in which each initial BWP is associated with a set of Synchronization Signal Block (SSB) beams and the set of SSB beams are associated with a same satellite beam, and the initial BWP selection configuration information is carried in System Information Block 1 (SIB1); determining, by the terminal device, a target initial BWP among the plurality of initial BWPs configured by the initial BWP selection configuration information for a first cell according to measurement results of a plurality of SSB beams in the first cell, wherein the first cell is a cell upon which the terminal device currently camps; wherein determining, by the terminal device, the target initial BWP among the plurality of initial BWPs comprises: according to the measurement results of the plurality of SSB beams, determining a measurement result of each satellite beam of a plurality of satellite beams in the first cell, wherein each satellite beam is associated with a set of SSB beams and each satellite beam is associated with an initial BWP; according to the measurement result of each satellite beam, determining a target satellite beam among the plurality of satellite beams; and determining an initial BWP associated with the target satellite beam as the target initial BWP according to the association relationship; wherein determining, according to the measurement results of the plurality of SSB beams, the measurement result of each satellite beam of the plurality of satellite beams in the first cell comprises: selecting, among a set of measurement results of the set of SSB beams associated with each satellite beam, target measurement results of SSB beams, signal quality of which is higher than a second signal quality threshold and number of which does not exceed a first SSB number threshold, wherein the second signal quality threshold represents a minimum quality threshold to be met by a SSB beam used to determine a measurement result of a satellite beam, and the first SSB number threshold represents a maximum number of SSB beams used to determine the measurement result of the satellite beam; and determining a linear average value of the target measurement results of the SSB beams, as the measurement result of each satellite beam of the plurality of satellite beams in the first cell.
2 . The method according to claim 1 , wherein determining, according to the measurement result of each satellite beam, the target satellite beam among the plurality of satellite beams comprises: determining a satellite beam with the highest measurement result among the plurality of satellite beams as the target satellite beam; or determining a satellite beam with a measurement result greater than a first beam quality threshold among the plurality of satellite beams as the target satellite beam.
3 . The method according to claim 2 , wherein the first beam quality threshold is comprised in the initial BWP selection configuration information.
4 . A method for selecting an initial Bandwidth Part (BWP), comprising: sending, by a network device, initial BWP selection configuration information to a terminal device in a non-connected state, wherein the initial BWP selection configuration information is used to configure a plurality of initial BWPs for the terminal device to perform initial access, and the initial BWP selection configuration information comprises an association relationship in which each initial BWP is associated with a set of SSB beams and the set of SSB beams are associated with a same satellite beam, and the initial BWP selection configuration information is carried in System Information Block 1 (SIB1) wherein the initial BWP selection configuration information is used for the terminal device to determine a target initial BWP among the plurality of initial BWPs configured by the initial BWP selection configuration information for a first cell according to measurement results of a plurality of SSB beams in the first cell, wherein the first cell is a cell upon which the terminal device currently camps; wherein determining of the target initial BWP among the plurality of initial BWPs comprises: according to the measurement results of the plurality of SSB beams, determining a measurement result of each satellite beam of a plurality of satellite beams in the first cell, wherein each satellite beam is associated with a set of SSB beams and each satellite beam is associated with an initial BWP; according to the measurement result of each satellite beam, determining a target satellite beam among the plurality of satellite beams; and determining an initial BWP associated with the target satellite beam as the target initial BWP according to the association relationship; wherein determining, according to the measurement results of the plurality of SSB beams, the measurement result of each satellite beam of the plurality of satellite beams in the first cell comprises: selecting, among a set of measurement results of the set of SSB beams associated with each satellite beam, target measurement results of SSB beams, signal quality of which is higher than a second signal quality threshold and number of which does not exceed a first SSB number threshold, wherein the second signal quality threshold represents a minimum quality threshold to be met by a SSB beam used to determine a measurement result of a satellite beam, and the first SSB number threshold represents a maximum number of SSB beams used to determine the measurement result of the satellite beam; and determining a linear average value of the target measurement results of the SSB beams, as the measurement result of each satellite beam of the plurality of satellite beams in the first cell.
5 . The method according to claim 4 , wherein the initial BWP selection configuration information comprises:
a signal quality threshold which represents a minimum quality threshold to be met by a SSB beam used to determine a measurement result of a satellite beam; and
a signal number threshold which represents a maximum number of SSB beams used to determine a measurement result of a satellite beam.
6 . A terminal device, comprising: a processor; and a memory storing instructions executable by the processor; wherein when the instructions are executed by the processor, the terminal device is caused to: receive initial BWP selection configuration information sent from a network device, wherein the initial BWP selection configuration information is used to configure a plurality of initial BWPs for the terminal device to perform initial access, and the initial BWP selection configuration information comprises an association relationship in which each initial BWP is associated with a set of SSB beams and the set of SSB-beams are associated with a same satellite beam, and the initial BWP selection configuration information is carried in System Information Block 1 (SIB1); determine a target initial Bandwidth Part (BWP) among the plurality of initial BWPs configured by the initial BWP selection configuration information for a first cell according to measurement results of a plurality of SSB beams in the first cell, wherein-the first cell is a cell upon which the terminal device currently camps; wherein when the instructions are executed by the processor, the terminal device is caused to: according to the measurement results of the plurality of SSB beams, determine a measurement result of each satellite beam of a plurality of satellite beams in the first cell, wherein each satellite beam is associated with a set of SSB beams and each satellite beam is associated with an initial BWP; according to the measurement result of each satellite beam, determine a target satellite beam among the plurality of satellite beams; and determine an initial BWP associated with the target satellite beam as the target initial BWP according to the association relationship; wherein determining, according to the measurement results of the plurality of SSB beams, the measurement result of each satellite beam of the plurality of satellite beams in the first cell comprises: selecting, among a set of measurement results of the set of SSB beams associated with each satellite beam, target measurement results of SSB beams, signal quality of which is higher than a second signal quality threshold and number of which does not exceed a first SSB number threshold, wherein the second signal quality threshold represents a minimum quality threshold to be met by a SSB beam used to determine a measurement result of a satellite beam, and the first SSB number threshold represents a maximum number of SSB beams used to determine the measurement result of the satellite beam; and determining a linear average value of the target measurement results of the SSB beams, as the measurement result of each satellite beam of the plurality of satellite beams in the first cell.
7 . The terminal device according to claim 6 , wherein when the instructions are executed by the processor, the terminal device is caused to: determine a satellite beam with the highest measurement result among the plurality of satellite beams as the target satellite beam; or determine a satellite beams with a measurement result greater than a first beam quality threshold among the plurality of satellite beams as the target satellite beam.
8 . The terminal device according to claim 7 , wherein the first beam quality threshold is comprised in the initial BWP selection configuration information.