US 12,114,345 B2Granted

Method and apparatus for handling BWP switching based on priority in a wireless communication system

AssigneeLG Electronics Inc.

InventorsYoungdae Lee, Giwon Park, Hanbyul Seo, Jongyoul Lee

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Abstract

A method and apparatus for handling BWP switching based on priority in a wireless communication system is provided. A wireless device receives configuration of multiple bandwidth parts (BWPs) on a cell, wherein the multiple BWPs includes at least one active uplink (UL) BWP for UL transmission and at least one active sidelink (SL) BWP for SL transmission. A wireless device detects a triggering condition for switching to a specific UL BWP which cannot be simultaneously active with the active SL BWP. A wireless device determines whether to switch to the specific UL BWP based on priority information, wherein the priority information includes at least one of UL priority and/or SL priority. A wireless device performs the switching to the specific UL BWP based on the determination.

Claims9

Dependent claims

A method performed by a wireless device in a wireless communication system, the method comprising,

establishing a connection with a cell;
receiving configuration of multiple bandwidth parts on the cell,
wherein the multiple BWPs includes a first active bandwidth part for uplink transmission and a second active bandwidth part for device-to-device direct communication;
detecting a triggering condition for switching from the first active bandwidth part for uplink transmission to a specific bandwidth part for uplink transmission,
wherein the specific bandwidth part for uplink transmission cannot be simultaneously active with the second active bandwidth part for device-to-device direct communication;
based on that 1) a first priority value for uplink transmission is higher than a first threshold value for uplink transmission and a second priority value for device-to-device direct communication, and 2) the second priority value for device-to-device direct communication is lower than or equal to a second threshold for device-to-device direct communication:
determining not to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
skipping the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
based on that 1) a first priority value for uplink transmission is lower than or equal to the first threshold value for uplink transmission and the second priority value for device-to-device direct communication, or 2) the second priority value for device-to-device direct communication is higher than the second threshold for device-to-device direct communication:
determining to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
performing the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission.

10 more elements

A wireless device in a wireless communication system comprising:

a transceiver;
a memory;
and
at least one processor operatively coupled to the transceiver and the memory, and configured to:
establish a connection with a cell;
receive configuration of multiple bandwidth parts on the cell,
wherein the multiple BWPs includes a first active bandwidth part for uplink transmission and a second active bandwidth part for device-to-device direct communication;
detect a triggering condition for switching from the first active bandwidth part for uplink transmission to a specific bandwidth part for uplink transmission,
wherein the specific bandwidth part for uplink transmission cannot be simultaneously active with the second active bandwidth part for device-to-device direct communication;
based on that 1) a first priority value for uplink transmission is higher than a first threshold value for uplink transmission and a second priority value for device-to-device direct communication, and 2) the second priority value for device-to-device direct communication is lower than or equal to a second threshold for device-to-device direct communication:
determine not to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
skip the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
based on that 1) a first priority value for uplink transmission is lower than or equal to the first threshold value for uplink transmission and the second priority value for device-to-device direct communication, or 2) the second priority value for device-to-device direct communication is higher than the second threshold for device-to-device direct communication:
determine to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
perform the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission.

14 more elements

A non-transitory computer-readable medium having stored thereon a plurality of instructions, which, when executed by a processor of a wireless device, cause the wireless device to:

establish a connection with a cell;
receive configuration of multiple bandwidth parts on the cell,
wherein the multiple BWPs includes a first active bandwidth part for uplink transmission and a second active bandwidth part for device-to-device direct communication;
detect a triggering condition for switching from the first active bandwidth part for uplink transmission to a specific bandwidth part for uplink transmission,
wherein the specific bandwidth part for uplink transmission cannot be simultaneously active with the second active bandwidth part for device-to-device direct communication;
based on that 1) a first priority value for uplink transmission is higher than a first threshold value for uplink transmission and a second priority value for device-to-device direct communication, and 2) the second priority value for device-to-device direct communication is lower than or equal to a second threshold for device-to-device direct communication:
determine not to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
skip the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
based on that 1) a first priority value for uplink transmission is lower than or equal to the first threshold value for uplink transmission and the second priority value for device-to-device direct communication, or 2) the second priority value for device-to-device direct communication is higher than the second threshold for device-to-device direct communication:
determine to switch from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission;
and
perform the switching from the first active bandwidth part for uplink transmission to the specific bandwidth part for uplink transmission.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/753,010Filed 8 Oct 2020
Priority: KR 10-2019-012558010 Oct 2019
Published: US 2022/0279527 A11 Sep 2022
Granted: 8 Oct 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04W 72/56
Allocation or scheduling criteria for wireless resources: based on priority criteria
H04W 72/044
Wireless resource allocation: based on the type of the allocated resource
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal

Family

US 2022/0279527 A1Pre-grant publication · published 1 Sep 2022
US 12,114,345 B2This patent

From the US filing history. Foreign family members aren’t listed.

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