Search

US-12628141-B2 - Bandwidth part configuration for communication networks

US12628141B2US 12628141 B2US12628141 B2US 12628141B2US-12628141-B2

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a beam used for communicating with a network entity, the beam associated with multiple bandwidth parts (BWPs) including a reference BWP with a first frequency. The UE may receive a BWP configuration from the network entity, the BWP configuration based on changing a frequency for at least one BWP of the multiple BWPs form the first frequency to a second frequency. Additionally or alternatively, the UE may identify a timing threshold associated with a BWP switching operation for multiple BWPs associated with the beam. The UE may switch from the first BWP to a second BWP during the timing threshold. The UE may communicate with the network entity according to the BWP configuration or the second BWP.

Inventors

  • Liangping Ma
  • Huilin Xu
  • Yiqing Cao
  • Xiao Feng Wang
  • Peter Gaal
  • Ayan Sengupta
  • Alberto RICO ALVARINO
  • Bharat Shrestha
  • Jun Ma
  • Umesh Phuyal
  • Dan Zhang

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260512
Application Date
20200702

Claims (20)

  1. 1 . An apparatus for wireless communication at a user equipment (UE) comprising: one or more memories; and one or more processors coupled with the one or more memories and configured to cause the UE to: identify a first beam used to communicate with a network entity, the first beam associated with a plurality of bandwidth parts including a reference bandwidth part with a first frequency, wherein the network entity is a non-terrestrial network entity; receive a bandwidth part configuration for the plurality of bandwidth parts, the bandwidth part configuration based at least in part on a change in frequency for at least one bandwidth part of the plurality of bandwidth parts from the first frequency to a second frequency, wherein the second frequency is associated with a second beam different from the first beam; receive an indication of a frequency shift between the first frequency and the second frequency, wherein the frequency shift is applied to the reference bandwidth part to derive a reference bandwidth part for the second beam; and communicate with the network entity according to the bandwidth part configuration.
  2. 2 . The apparatus of claim 1 , wherein to receive the bandwidth part configuration, the one or more processors are configured to cause the UE to: identify respective bandwidth part configurations for each bandwidth part of the plurality of bandwidth parts independent of the reference bandwidth part; and receive the bandwidth part configuration for each bandwidth part of the plurality of bandwidth parts.
  3. 3 . The apparatus of claim 2 , wherein the one or more processors are further configured to cause the UE to: receive a second indication that the bandwidth part configuration is identified independent of the reference bandwidth part, wherein the bandwidth part configuration for each bandwidth part of the plurality of bandwidth parts is received based at least in part on the second indication.
  4. 4 . The apparatus of claim 1 , wherein the plurality of bandwidth parts are downlink bandwidth parts.
  5. 5 . The apparatus of claim 1 , wherein the plurality of bandwidth parts are uplink bandwidth parts.
  6. 6 . The apparatus of claim 1 , wherein a bandwidth part of the plurality of bandwidth parts is an initial bandwidth part.
  7. 7 . The apparatus of claim 1 , wherein to receive the bandwidth part configuration, the one or more processors are configured to cause the UE to: receive the bandwidth part configuration for one or more bandwidth parts of the plurality of bandwidth parts on the first beam.
  8. 8 . The apparatus of claim 7 , wherein the one or more bandwidth parts of the plurality of bandwidth parts comprises uplink bandwidth parts.
  9. 9 . The apparatus of claim 7 , wherein the one or more bandwidth parts of the plurality of bandwidth parts comprises downlink bandwidth parts.
  10. 10 . The apparatus of claim 1 , wherein to receive the bandwidth part configuration, the one or more processors are configured to cause the UE to: receive a first bandwidth part configuration for one or more first bandwidth parts of the plurality of bandwidth parts on the first beam, the first beam used to communicate with the network entity; and receive a second bandwidth part configuration on the second beam.
  11. 11 . The apparatus of claim 10 , wherein the one or more processors are further configured to cause the UE to: identify that the second bandwidth part configuration is for one or more second bandwidth parts of the plurality of bandwidth parts associated with the second beam and is based at least in part on the reference bandwidth part, the one or more first bandwidth parts of the plurality of bandwidth parts comprising the reference bandwidth part.
  12. 12 . The apparatus of claim 11 , wherein the one or more processors are further configured to cause the UE to: identify a first information element associated with the reference bandwidth part is the same as a second information element associated with a bandwidth part in the one or more second bandwidth parts of the plurality of bandwidth parts, wherein the second bandwidth part configuration comprises an identifier corresponding to the reference bandwidth part.
  13. 13 . The apparatus of claim 12 , wherein the one or more processors are further configured to cause the UE to: identify the first information element and the second information element are the same based at least in part on an absence of the second information element.
  14. 14 . The apparatus of claim 12 , wherein the one or more processors are further configured to cause the UE to: receive a message that indicates the first information element and the second information element are the same, wherein the first information element is identified to be the same as the second information element based at least in part on the message.
  15. 15 . The apparatus of claim 11 , wherein the one or more processors are further configured to cause the UE to: receive, in the second bandwidth part configuration, the indication of the frequency shift and an identifier corresponding to the reference bandwidth part, the second frequency associated with the one or more second bandwidth parts of the plurality of bandwidth parts.
  16. 16 . The apparatus of claim 10 , wherein the one or more processors are further configured to cause the UE to: receive an indicator corresponding to the bandwidth part configuration, wherein the second bandwidth part configuration is received on the second beam based at least in part on the indicator.
  17. 17 . The apparatus of claim 10 , wherein the second beam is used to communicate with the network entity.
  18. 18 . The apparatus of claim 10 , wherein the network entity is a first network entity and the second beam is used to communicate with a second network entity different from the first network entity.
  19. 19 . The apparatus of claim 1 , wherein the one or more processors are further configured to cause the UE to: receive the bandwidth part configuration via a radio resource control signaling message, a system information block, or both.
  20. 20 . The apparatus of claim 1 , wherein the one or more processors are further configured to cause the UE to: receive a second indication of the reference bandwidth part comprising a bandwidth part identifier, a beam identifier, or both.

Description

CROSS REFERENCE The present Application is a 371 national stage filing of International PCT Application No. PCT/CN2020/099918 by M A et al. entitled “BANDWIDTH PART CONFIGURATION FOR COMMUNICATION NETWORKS,” filed Jul. 2, 2020, which is assigned to the assignee hereof, and which is expressly incorporated by reference in its entirety herein. INTRODUCTION The following relates generally to wireless communications and more specifically to reliability enhancements at a user equipment (UE). 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 FDMA (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 of wireless communications at a UE is described. The method may include identifying a beam used for communicating with a network entity, the beam associated with a set of bandwidth parts (BWPs) including a reference BWP with a first frequency, receiving a BWP configuration for the set of BWPs, the BWP configuration based on changing a frequency for at least one BWP of the set of BWPs from the first frequency to a second frequency, and communicating with the network entity according to the BWP configuration. An apparatus for wireless communications at a UE is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to identify a beam used for communicating with a network entity, the beam associated with a set of BWPs including a reference BWP with a first frequency, receive a BWP configuration for the set of BWPs, the BWP configuration based on changing a frequency for at least one BWP of the set of BWPs from the first frequency to a second frequency, and communicate with the network entity according to the BWP configuration. Another apparatus for wireless communications at a UE is described. The apparatus may include means for identifying a beam used for communicating with a network entity, the beam associated with a set of BWPs including a reference BWP with a first frequency, receiving a BWP configuration for the set of BWPs, the BWP configuration based on changing a frequency for at least one BWP of the set of BWPs from the first frequency to a second frequency, and communicating with the network entity according to the BWP configuration. A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code may include instructions executable by a processor to identify a beam used for communicating with a network entity, the beam associated with a set of BWPs including a reference BWP with a first frequency, receive a BWP configuration for the set of BWPs, the BWP configuration based on changing a frequency for at least one BWP of the set of BWPs from the first frequency to a second frequency, and communicate with the network entity according to the BWP configuration. In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the receiving the BWP configuration may include operations, features, means, or instructions for identifying a BWP configuration for each BWP of the set of BWPs may be determined independent of the reference BWP, and receiving the BWP configuration for the each BWP of the set of BWPs. Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the network entity, an indication that the BWP configuration may be determined independent of the reference BWP, where receiving the BWP configuration for each BWP of the set of BWPs may be based on the received indication. In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the receiving the BWP configuration may include operations, features, means, or instructions for receiving a BWP configuration for a set of the set of BWPs on