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BWP switching method and terminal

A terminal and handover condition technology, applied in the field of communications, can solve the problems that the terminal cannot flexibly receive MBS services, cannot switch MBSBWP, etc., and achieves the effect of improving communication effectiveness and flexible reception.

Active Publication Date: 2022-03-18
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a BWP switching method and a terminal, which can solve the problem that the terminal cannot flexibly receive MBS services due to the inability to switch over MBSBWP in related technologies

Method used

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  • BWP switching method and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 100

[0036] In Embodiment 100, it is mentioned that the terminal switches from the first BWP to the second BWP when the switching condition is met. There are many ways to realize the switching condition. According to the different switching conditions, the following will be divided into several different embodiments. Make an introduction Make an introduction.

[0037] In an embodiment, the handover condition is met as follows: the target downlink transmission on the first BWP ends or is about to end. In this way, when the terminal mentioned in Embodiment 100 satisfies the handover condition, switching from the first BWP to the second BWP includes: the target downlink transmission of the terminal on the first BWP ends or is about to end In some cases, switch from the first BWP to the second BWP.

[0038] In fact, both the first BWP and the second BWP in this embodiment may also be unicast BWPs or other types of BWPs. In this embodiment, for example, when both the first BWP and the...

Embodiment 1

[0086] This embodiment introduces BWP switching based on downlink receiving opportunity (corresponding to the aforementioned target downlink transmission), such as PDCCH monitoring occasion or PDSCH reception.

[0087] If the terminal (UE) is configured with several periodic MBS listening time periods, or is scheduled to receive MBS downlink (for example, monitor MBS PDCCH or MBS PDSCH or CSI-RS in each time period), within one MBS listening time After the end time T1 of segment or downlink reception, it will automatically switch to unicast BWP (or called unicast DL BWP). Since BWP switching takes a certain time X, then:

[0088] 1. If the time interval between the current MBS monitoring period or the end time T1 of downlink reception on the MBS DL BWP and the start time T2 of the latest signal reception (PDCCH monitoring or PDSCH or CSI-RS or SSB reception, etc.) on the target unicastDL BWP is greater than or equal to X, the UE can complete the BWP switching before T2 (inclu...

Embodiment 2

[0101] This embodiment introduces BWP switching based on downlink receiving opportunity (corresponding to the aforementioned target downlink transmission), such as PDCCH monitoring occasion or PDSCH reception.

[0102] The UE is configured to periodically monitor several MBS monitoring time periods (eg, monitor MBS PDCCH or MBS PDSCH in each time period)). If the UE is currently working on unicast DL BWP, and the start time of the MBS listening period on the nearest MBS DL BWP is T2, and the time required for BWP switching is X, then the UE performs unicast DL BWP to MBSDL at (T2-X) time Switching of BWP to ensure correct reception of signals on MBS DL BWP; or switching to MBS DL BWP at the end of downlink receiving position T1 of unicast DL BWP, etc.

[0103] In this embodiment, if no downlink signal is received on the MBS DL BWP between two unicast listening periods, the UE does not need to switch from the unicast DL BWP to the MBS DL BWP.

[0104] In this embodiment, if th...

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Abstract

The embodiment of the invention discloses a bandwidth part BWP switching method and a terminal, and can solve the problem that the terminal cannot flexibly receive MBS service due to the fact that switching cannot be carried out for the MBS BWP in the related technology. The method comprises the following steps: a terminal switches from a first BWP to a second BWP under the condition that a switching condition is satisfied; wherein at least one of the first BWP and the second BWP is an MBS BWP used for MBS downlink transmission.

Description

technical field [0001] The present application belongs to the technical field of communications, and in particular relates to a bandwidth part (BandWidth Part, BWP) switching method and a terminal. Background technique [0002] In the 5G New Radio (NR) system, a cell supports a maximum system bandwidth of 400MHz to support greater system and user throughput, which is far greater than the maximum system bandwidth of 20MHz in the Long Term Evolution (LTE) system. However, supporting such a large system bandwidth will be a huge challenge for terminal implementation, which is not conducive to the realization of low-cost terminals. Therefore, the 5G NR system also supports dynamic and flexible bandwidth allocation, which divides the system bandwidth into multiple BWPs. Support the access of narrowband end users or end users in energy-saving mode. [0003] In related technologies, unicast downlink service reception is supported, and its BWP (unicast BWP) configuration is terminal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W36/00
CPCH04W4/06H04W36/0007
Inventor 李娜潘学明
Owner VIVO MOBILE COMM CO LTD
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