US-20260129490-A1 - USER EQUIPMENT INITIATED UPLINK BEAM UPDATES IN WIRELESS COMMUNICATIONS

US20260129490A1US 20260129490 A1US20260129490 A1US 20260129490A1US-20260129490-A1

Abstract

Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) transmission of a request for an update of an uplink measurement report. The update of the uplink measurement report may provide information related to one or more changed conditions at the UE that impact uplink communications at the UE. The UE may be configured with an event list that triggers the UE to transmit the request for the update of the uplink measurement report. The event list may include beam update events associated with one or more uplink conditions to trigger transmission of the request. The event list also may include beam update events associated with one or more downlink conditions to trigger transmission of the request.

Inventors

Kiran Venugopal
Yan Zhou
Yu Zhang
Jing Sun

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260507
Application Date: 20241107

Claims (20)

1 . 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: receive configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report associated with a channel between the UE and a network entity, wherein the configuration information further indicates a second set of beam update events that include one or more beam update events associated with one or more downlink conditions to trigger the transmission of the request to update the measurement report; and transmit the request to update the measurement report in accordance with a detected uplink condition that meets the one or more uplink conditions of the first set of beam update events or a detected downlink condition that meets the one or more downlink conditions of the second set of beam update events.
2 . The UE of claim 1 , wherein the one or more uplink conditions include one or more of a first uplink metric that is below a threshold value for a first beam used for communication between the UE and the network entity, a second uplink metric of a second beam that exceeds a corresponding uplink metric for the first beam, a third uplink metric of the second beam that exceeds an absolute threshold value associated with the third uplink metric, a predicted metric value of the first beam or the second beam that meets one or more prediction criteria, or a change in an uplink beam pattern.
3 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: transmit the request to update the measurement report in accordance with the detected uplink condition that meets the one or more uplink conditions and at least a first downlink condition associated with a first beam that meets the one or more downlink conditions.
4 . The UE of claim 2 , wherein one or more of the first uplink metric, second uplink metric, or third uplink metric include an uplink reference signal received power (RSRP), an uplink signal to interference and noise ratio (SINR), an uplink throughput value, an uplink transmit power, or a maximum permissible exposure (MPE) value.
5 . The UE of claim 1 , wherein the first set of beam update events include a first subset of beam update events associated with a first transmission-reception point (TRP) or a first component carrier, and a second subset of beam update events associated with a second TRP or a second component carrier.
6 . The UE of claim 1 , wherein the one or more uplink conditions include a first uplink metric that has a value above or below a first threshold value, and wherein the first threshold value is associated with the first uplink metric and a first event of the first set of beam update events, and the first threshold value is based at least in part on one or more of an indication provided with the configuration information, a defined threshold value, or a capability of the UE.
7 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: transmit one or more instances of a scheduling request that indicates the request to update the measurement report; and transmit one or more instances of a random access channel request that indicates the request to update the measurement report in an absence of a response to the one or more instances of the scheduling request, wherein the scheduling request and the random access channel request are transmitted via different uplink beams.
8 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: transmit one or more instances of a random access channel request that indicates the request to update the measurement report based at least in part on the detected uplink condition is below a threshold value.
9 . The UE of claim 1 , wherein the request to update the measurement report includes an event indication that indicates a first beam update event of the first set of beam update events associated with the detected uplink condition, or a second beam update event of the second set of beam update events associated with the detected downlink condition.
10 . The UE of claim 9 , wherein the event indication comprises a set of bits, and different bit values of the set of bits indicate different events or combinations of events of the first set of beam update events and the second set of beam update events.
11 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: select a first uplink resource for transmission of the request to update the measurement report based at least in part on detection of a beam update event of the first set of beam update events, or select a second uplink resource for transmission of the request to update the measurement report based at least in part on detection of a beam update event of the second set of beam update events.
12 . The UE of claim 1 , wherein the configuration information further indicates a priority associated with each beam update event of the first set of beam update events and the second set of beam update events.
13 . The UE of claim 12 , wherein the configuration information indicates separate priority lists for the first set of beam update events and the second set of beam update events.
14 . The UE of claim 12 , wherein the configuration information indicates a common priority list for beam update events of the first set of beam update events and the second set of beam update events.
15 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: transmit a plurality of instances of the request to update the measurement report, a quantity of the plurality of instances of the request to update the measurement report based at least in part on a configured quantity or a prohibit timer that is initiated upon transmission of an instance of the request to update the measurement report, wherein the quantity of the plurality of instances of the request to update the measurement report, or a value of the prohibit timer, is based at least in part on a priority associated with each beam update event of the first set of beam update events and the second set of beam update events.
16 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: receive a resource allocation for transmission of an updated measurement report, wherein the resource allocation indicates first resources for an updated uplink measurement report, second resources for an updated downlink measurement report, or joint resources for an updated joint uplink and downlink measurement report.
17 . The UE of claim 1 , wherein the one or more processors are configured to cause the UE to: transmit an updated measurement report to the network entity in accordance with the request to update the measurement report, wherein an uplink resource and format for the updated measurement report is indicated in the configuration information or is based at least in part on a beam update event of the first set of beam update events or the second set of beam update events that triggered the request to update the measurement report.
18 . The UE of claim 17 , wherein the updated measurement report has a format that includes a first field that indicates a metric associated with a measured reference signal, and a second field that indicates whether the metric is an uplink metric or a downlink metric.
19 . 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: receive configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report that includes one or more uplink channel metrics associated with a channel between the UE and a network entity; and transmit the request to update the measurement report in accordance with a detected uplink condition that meets the one or more uplink conditions of the first set of beam update events.
20 . The UE of claim 19 , wherein: the one or more uplink conditions are configured separately from one or more downlink conditions associated with one or more downlink channel metrics.

Description

INTRODUCTION The following relates to wireless communications, including measurement reports provided by a user equipment in 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 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, each supporting wireless communication for communication devices, which may be known as user equipment (UE). SUMMARY The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. A method for wireless communications by a user equipment (UE) is described. The method may include receiving configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report associated with a channel between the UE and a network entity, where the configuration information further indicates a second set of beam update events that include one or more beam update events associated with one or more downlink conditions to trigger the transmission of the request to update the measurement report and transmitting the request to update the measurement report in accordance with a detected uplink condition that meets the one or more uplink conditions of the first set of beam update events or a detected downlink condition that meets the one or more downlink conditions of the second set of beam update events. A UE for wireless communications is described. The UE may include one or more memories, and one or more processors coupled with the one or more memories. The one or more processors may configured to cause the UE to receive configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report associated with a channel between the UE and a network entity, where the configuration information further indicates a second set of beam update events that include one or more beam update events associated with one or more downlink conditions to trigger the transmission of the request to update the measurement report and transmit the request to update the measurement report in accordance with a detected uplink condition that meets the one or more uplink conditions of the first set of beam update events or a detected downlink condition that meets the one or more downlink conditions of the second set of beam update events. Another UE for wireless communications is described. The UE may include means for receiving configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report associated with a channel between the UE and a network entity, where the configuration information further indicates a second set of beam update events that include one or more beam update events associated with one or more downlink conditions to trigger the transmission of the request to update the measurement report and means for transmitting the request to update the measurement report in accordance with a detected uplink condition that meets the one or more uplink conditions of the first set of beam update events or a detected downlink condition that meets the one or more downlink conditions of the second set of beam update events. A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to receive configuration information that indicates a first set of beam update events that include one or more beam update events associated with one or more uplink conditions to trigger a transmission of a request to update a measurement report associated with a channel between the UE and a network entity, where the configuration information further indicates a second set of beam upd