US-12627456-B2 - Techniques for bandwidth part switching patterns

US12627456B2US 12627456 B2US12627456 B2US 12627456B2US-12627456-B2

Abstract

Methods, systems, and devices for wireless communications are described. A first device of a wireless communications network may receive, from a second device of the wireless communications network, a configuration for a bandwidth part switching pattern for wireless communications performed at the first device, the bandwidth part switching pattern including at least a first bandwidth part and a second bandwidth part different from the first bandwidth part. The first device may transmit a first transmission to one or more devices of the wireless communications network during a first time interval and in accordance with the first bandwidth part, and may transmit a second transmission to the one or more devices of the wireless communications network during a second time interval different from the first time interval and in accordance with the second bandwidth part.

Inventors

Huilin Xu
Peng Cheng
Seyedkianoush HOSSEINI

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260512
Application Date: 20210101

Claims (20)

1 . A method for wireless communication at a first device of a wireless communications network, comprising: receiving, from a second device of the wireless communications network, a configuration for a bandwidth part switching pattern for wireless communications performed at the first device, the bandwidth part switching pattern comprising at least a first bandwidth part and a second bandwidth part different from the first bandwidth part; transmitting, to a third device, an indication of the first bandwidth part of the bandwidth part switching pattern; transmitting a first transmission to one or more devices including the third device during a first time interval in accordance with the first bandwidth part and based at least in part on the bandwidth part switching pattern; transmitting, to the third device, an indication of a bandwidth part switching procedure from the first bandwidth part to the second bandwidth part; and transmitting a second transmission to the one or more devices including the third device during a second time interval different from the first time interval in accordance with the second bandwidth part and based at least in part on the indication of the bandwidth part switching procedure.
2 . The method of claim 1 , further comprising: receiving, from the second device, a physical downlink shared channel transmission comprising the configuration for the bandwidth part switching pattern, wherein transmitting the first transmission, the second transmission, or both, is based at least in part on receiving the physical downlink shared channel transmission.
3 . The method of claim 2 , further comprising: receiving, via the physical downlink shared channel transmission, a set of parameters associated with the bandwidth part switching pattern, wherein the first transmission, the second transmission, or both, are transmitted in accordance with the set of parameters.
4 . The method of claim 3 , the set of parameters comprising at least one of periodicity of the bandwidth part switching pattern, a sequence of bandwidth parts within the bandwidth part switching pattern, an indication of a starting time for the bandwidth part switching pattern, a set of time intervals associated with a set of bandwidth parts of the bandwidth part switching pattern, or any combination thereof.
5 . The method of claim 3 , further comprising: receiving, from the second device, a downlink control information message comprising an indication of at least one parameter which is different from the set of parameters, wherein the first transmission, the second transmission, or both, is transmitted in accordance with the at least one parameter.
6 . The method of claim 2 , further comprising: receiving, from the second device, a downlink control information message comprising an indication for the first device to perform wireless communications according to the bandwidth part switching pattern, wherein transmitting the first transmission, the second transmission, or both, is based at least in part on receiving the downlink control information message.
7 . The method of claim 2 , further comprising: receiving, from the second device, a downlink control information message comprising an indication for the first device to refrain from performing subsequent transmissions according to the bandwidth part switching pattern.
8 . The method of claim 2 , wherein the physical downlink shared channel transmission comprises a radio resource control message, a MAC-CE message, or both.
9 . The method of claim 2 , further comprising: transmitting, to the second device, a request for the bandwidth part switching pattern, wherein the physical downlink shared channel transmission is received in response to the request.
10 . The method of claim 9 , further comprising: transmitting, to the second device via the request, an indication of a first set of parameters associated with bandwidth part switching at the first device, an indication of a second set of parameters associated with the wireless communications network, or both, wherein the bandwidth part switching pattern is based at least in part on the first set of parameters, the second set of parameters, or both.
11 . The method of claim 1 , further comprising: activating the first bandwidth part based at least in a part on the bandwidth part switching pattern, wherein transmitting the first transmission is based at least in part on the activating; and performing the bandwidth part switching procedure from the first bandwidth part to the second bandwidth part to activate the second bandwidth part, wherein transmitting the second transmission is based at least in part on performing the bandwidth part switching procedure.
12 . The method of claim 1 , wherein the bandwidth part switching pattern comprises a plurality of bandwidth parts for wireless communications performed during a plurality of time intervals, where each time interval of the plurality of time intervals is associated with a bandwidth part of the plurality of bandwidth parts.
13 . The method of claim 1 , wherein the first device comprises a first user equipment (UE), and wherein the one or more devices of the wireless communications network comprise at least one of a network entity or a second UE.
14 . The method of claim 1 , wherein the first device comprises a first user equipment (UE) and the one or more devices of the wireless communications network comprise a second UE, wherein the bandwidth part switching pattern is associated with sidelink communications between the first UE and the second UE, wherein the first transmission comprises a first sidelink transmission from the first UE to the second UE, and wherein the second transmission comprises a second sidelink transmission from the first UE to the second UE.
15 . A method for wireless communication at a second device of a wireless communications network, comprising: transmitting, to a first device of the wireless communications network, a configuration for a bandwidth part switching pattern for wireless communications performed at the first device, the bandwidth part switching pattern comprising at least a first bandwidth part and a second bandwidth part different from the first bandwidth part; receiving a first transmission from the first device during a first time interval and in accordance with the first bandwidth part and based at least in part on the bandwidth part switching pattern; receiving an indication of a bandwidth part switching procedure from the first bandwidth part to the second bandwidth part; and receiving a second transmission from the first device during a second time interval different from the first time interval in accordance with the second bandwidth part and based at least in part on the indication of the bandwidth part switching procedure.
16 . The method of claim 15 , further comprising: transmitting, to the first device, a physical downlink shared channel transmission comprising the configuration for the bandwidth part switching pattern, wherein receiving the first transmission, the second transmission, or both, is based at least in part on transmitting the physical downlink shared channel transmission.
17 . The method of claim 16 , further comprising: transmitting, via the physical downlink shared channel transmission, a set of parameters associated with the bandwidth part switching pattern, wherein the first transmission, the second transmission, or both, are received in accordance with the set of parameters.
18 . The method of claim 17 , the set of parameters comprising at least one of a periodicity of the bandwidth part switching pattern, a sequence of bandwidth parts within the bandwidth part switching pattern, an indication of a starting time for the bandwidth part switching pattern, a set of time intervals associated with a set of bandwidth parts of the bandwidth part switching pattern, or any combination thereof.
19 . The method of claim 17 , further comprising: transmitting, to the first device, a downlink control information message comprising an indication of at least one parameter which is different from the set of parameters, wherein the first transmission, the second transmission, or both, is received in accordance with the at least one parameter.
20 . The method of claim 16 , further comprising: transmitting, to the first device, a downlink control information message comprising an indication for the first device to perform wireless communications according to the bandwidth part switching pattern, wherein receiving the first transmission, the second transmission, or both, is based at least in part on transmitting the downlink control information message.

Description

CROSS REFERENCE The present Application is a 371 national stage filing of International PCT Application No. PCT/CN2021/070051 by XU et al. entitled “TECHNIQUES FOR BANDWIDTH PART SWITCHING PATTERNS,” filed Jan. 1, 2021, which is assigned to the assignee hereof, and which is expressly incorporated by reference in its entirety herein. INTRODUCTION The following relates to wireless communications, and, more specifically, techniques for signaling bandwidth parts (BWPs) for wireless communications. Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE). SUMMARY A method for wireless communication at a first device of a wireless communications network is described. The method may include receiving, from a second device of the wireless communications network, a configuration for a BWP switching pattern for wireless communications performed at the first device, the BWP switching pattern including at least a first BWP and a second BWP different from the first BWP, transmitting a first transmission to one or more devices of the wireless communications network during a first time interval and in accordance with the first BWP, and transmitting a second transmission to the one or more devices of the wireless communications network during a second time interval different from the first time interval and in accordance with the second BWP. An apparatus for wireless communication at a first device of a wireless communications network is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive, from a second device of the wireless communications network, a configuration for a BWP switching pattern for wireless communications performed at the first device, the BWP switching pattern including at least a first BWP and a second BWP different from the first BWP, transmit a first transmission to one or more devices of the wireless communications network during a first time interval and in accordance with the first BWP, and transmit a second transmission to the one or more devices of the wireless communications network during a second time interval different from the first time interval and in accordance with the second BWP. Another apparatus for wireless communication at a first device of a wireless communications network is described. The apparatus may include means for receiving, from a second device of the wireless communications network, a configuration for a BWP switching pattern for wireless communications performed at the first device, the BWP switching pattern including at least a first BWP and a second BWP different from the first BWP, means for transmitting a first transmission to one or more devices of the wireless communications network during a first time interval and in accordance with the first BWP, and means for transmitting a second transmission to the one or more devices of the wireless communications network during a second time interval different from the first time interval and in accordance with the second BWP. A non-transitory computer-readable medium storing code for wireless communication at a first device of a wireless communications network is described. The code may include instructions executable by a processor to receive, from a second device of the wireless communications network, a configuration for a BWP switching pattern for wireless communications performed at the first device, the BWP switching pattern including at least a first BWP and a second BWP different from the first BWP, transmit a first transmission to one or more devices of the wireless communications network during a first time interval and in accordance with the first BWP, and transmit a second transmission to the one or more devices of the wireless communications network during a se