US-12628081-B2 - Techniques for managing a radio transceiver chain for multiple radio access technologies

US12628081B2US 12628081 B2US12628081 B2US 12628081B2US-12628081-B2

Abstract

A user equipment (UE) may monitor a channel for wireless communication associated with a first radio access technology (RAT) during one or more of a first active duration or a first inactive duration. The UE may operate in a first power mode during the first inactive duration. The UE may monitor the channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration. The UE may operate during the second inactive duration in one or more of the first power mode or a second power. The UE may operate according to the first mode or the second mode based on the monitoring of the channel associated with the first RAT and the second RAT.

Inventors

Reza Shahidi
Sridhar BANDARU
Scott Hoover
Brian George
Hemanth Kumar Rayapati
Sunil KC
Sandeep Ramannavar
Sandeep Rao
Brian Clarke Banister
Vishal MAHAJAN
Vikram Ramesh Babu
Joshua Tennyson MACDONALD
Thawatt Gopal
Udayan Bhawnani
Yu Fu
Bhupesh Manoharlal Umatt

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260512
Application Date: 20240118

Claims (20)

1 . A method for wireless communications at a user equipment (UE), comprising: receiving control signaling comprising a configuration indicative of one or more of a first active duration or a first inactive duration associated with a first radio access technology or a second active duration or a second inactive duration associated with a second radio access technology; and operating a radio transceiver chain at the UE associated with one or more of the first radio access technology or the second radio access technology in one or more of a first power mode or a second power mode based at least in part on the configuration, wherein the radio transceiver chain maintains a configuration of one or more radio frequency front-end registers used by the UE for monitoring for communications in accordance with each of the first radio access technology and the second radio access technology when switching the UE from the first power mode to the second power mode.
2 . The method of claim 1 , wherein receiving the control signaling comprises: receiving a radio resource control (RRC) message indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology or the second active duration or the second inactive duration associated with the second radio access technology.
3 . The method of claim 1 , wherein receiving the control signaling comprises: receiving a downlink control information (DCI) or medium access control-control element (MAC-CE) indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology or the second active duration or the second inactive duration associated with the second radio access technology.
4 . The method of claim 1 , wherein: the first radio access technology comprises long term evolution (LTE), and the second radio access technology comprises new radio (NR).
5 . The method of claim 1 , wherein: the first active duration comprises an LTE wakeup duration, and the second active duration comprises a discontinuous reception (DRX) duration.
6 . The method of claim 1 , further comprising: determining a presence of an overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology, wherein operating the radio transceiver chain is based at least in part on the presence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.
7 . The method of claim 6 , wherein determining the presence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology comprises: determining that a first portion of the first active duration overlaps with a second portion of the second active duration, the method further comprising: adjusting the second active duration based at least in part on the first portion of the first active duration overlapping with the second portion of the second active duration.
8 . The method of claim 7 , wherein determining that the first portion of the first active duration overlaps with the second portion of the second active duration comprises: determining one or more of a beginning of the first active duration or a beginning of the second active duration, wherein adjusting the second active duration comprises: adjusting the beginning of the second active duration to occur before the beginning of the first active duration.
9 . The method of claim 7 , wherein determining that the first portion of the first active duration overlaps with the second portion of the second active duration comprises: determining one or more of an ending of the first active duration or an ending of the second active duration, wherein adjusting the second active duration comprises: adjusting the ending of the second active duration to occur after the ending of the first active duration.
10 . The method of claim 7 , further comprising: adjusting the second inactive duration associated with the second radio access technology based at least in part on the presence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.
11 . The method of claim 1 , further comprising: determining an absence of an overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology, wherein operating the radio transceiver chain is based at least in part on the absence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.
12 . The method of claim 11 , further comprising: refraining from adjusting the second inactive duration associated with the second radio access technology based at least in part on the absence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.
13 . The method of claim 1 , further comprising: refraining from jointly adjusting, via a first subscriber identity module (SIM) associated with the first radio access technology and a second SIM associated with the second radio access technology, a mode of the radio transceiver chain associated with the UE.
14 . A user equipment (UE), comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to: receive control signaling comprising a configuration indicative of one or more of a first active duration or a first inactive duration associated with a first radio access technology or a second active duration or a second inactive duration associated with a second radio access technology; and operate a radio transceiver chain at the UE associated with one or more of the first radio access technology or the second radio access technology in one or more of a first power mode or a second power mode based at least in part on the configuration, wherein the radio transceiver chain maintains a configuration of one or more radio frequency front-end registers used by the UE for monitoring for communications in accordance with each of the first radio access technology and the second radio access technology when switching the UE from the first power mode to the second power mode.
15 . The UE of claim 14 , wherein, to receive the control signaling, the one or more processors are individually or collectively operable to execute the code to cause the UE to: receive a radio resource control (RRC) message indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology or the second active duration or the second inactive duration associated with the second radio access technology.
16 . The UE of claim 14 , wherein, to receive the control signaling, the one or more processors are individually or collectively operable to execute the code to cause the UE to: receive a downlink control information (DCI) or medium access control-control element (MAC-CE) indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology or the second active duration or the second inactive duration associated with the second radio access technology.
17 . The UE of claim 14 , wherein: the first radio access technology comprises long term evolution (LTE), and the second radio access technology comprises new radio (NR).
18 . The UE of claim 14 , wherein: the first active duration comprises an LTE wakeup duration, and the second active duration comprises a discontinuous reception (DRX) duration.
19 . The UE of claim 14 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to: determine a presence of an overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology, wherein to operate the radio transceiver chain is based at least in part on the presence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.
20 . A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to: receive control signaling comprising a configuration indicative of one or more of a first active duration or a first inactive duration associated with a first radio access technology or a second active duration or a second inactive duration associated with a second radio access technology; and operate a radio transceiver chain at a user equipment (UE) associated with one or more of the first radio access technology or the second radio access technology in one or more of a first power mode or a second power mode based at least in part on the configuration, wherein the radio transceiver chain maintains a configuration of one or more radio frequency front-end registers used by the UE for monitoring for communications in accordance with each of the first radio access technology and the second radio access technology when switching the UE from the first power mode to the second power mode.

Description

CROSS REFERENCE The present Application for Patent is a Continuation of U.S. patent application Ser. No. 17/320,197 by SHAHIDI et al., entitled “TECHNIQUES FOR MANAGING A RADIO TRANSCEIVER CHAIN FOR MULTIPLE RADIO ACCESS TECHNOLOGIES” filed May 13, 2021, which claims the benefit of U.S. Provisional Patent Application No. 63/025,273 by SHAHIDI et al., entitled “SHARING RADIO TRANSCEIVER CHAIN BETWEEN DISTINCT RADIO COMMUNICATION TECHNOLOGIES,” filed May 15, 2020, and U.S. Provisional Patent Application No. 63/025,528 by SHAHIDI et al., entitled “SHARING RADIO TRANSCEIVER CHAIN BETWEEN DISTINCT RADIO COMMUNICATION TECHNOLOGIES,” filed May 15, 2020, each of which are assigned to the assignee hereof, and each of which are hereby incorporated by reference in its entirety. FIELD OF DISCLOSURE The present disclosure, for example, relates to wireless communication systems, more particularly to techniques for managing a radio transceiver chain for multiple radio access technologies (RATs). BACKGROUND 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 The present disclosure relates to techniques for managing one or more radio transceiver chains for multiple radio access technologies (RATs). The described techniques each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. A method for wireless communication at a device is described. The method may include monitoring a channel for wireless communication associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration, monitoring the channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating during the second inactive duration in one or more of the first power mode based on an absence of an overlap between the first active duration and one or more of the second active duration or a third active duration, or a second power mode based on the overlap between the first active duration and one or more of the second active duration or the third active duration, and operating the device according to the first mode or the second mode based on the monitoring of the channel associated with the first RAT and the second RAT. An apparatus for wireless communication at a device 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 monitor a channel for wireless communication associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration, monitor the channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating during the second inactive duration in one or more of the first power mode based on an absence of an overlap between the first active duration and one or more of the second active duration or a third active duration, or a second power mode based on the overlap between the first active duration and one or more of the second active duration or the third active duration, and operate the device according to the first mode or the second mode based on the monitoring of the channel associated with the first RAT and the second RAT. Another apparatus for wireless communication at a device is described. The apparatus may include means for monitoring a channel for wireless communication associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration, means