CN-122003829-A - Dynamic uplink carrier selection for uplink control information multiplexing

Abstract

Various aspects of the present disclosure relate generally to wireless communications. In some aspects, a User Equipment (UE) may receive a dynamic uplink carrier selection communication from a network node, the dynamic uplink carrier selection communication indicating one or more selected uplink carriers of a plurality of uplink carriers for transmitting Uplink Control Information (UCI) according to a UCI multiplexing configuration. The UE may send UCI multiplexed with one or more selected uplink carriers to the network node. Numerous other aspects are described.

Inventors

• M.Yang
• K ray Chowdhury
• J. Montoyo

Assignees

• 高通股份有限公司

Dates

Publication Date

20260508

Application Date

20240829

Priority Date

20231025

Claims (20)

1. 1. An apparatus for wireless communication at a User Equipment (UE), the apparatus comprising: one or more memories, and One or more processors configured, individually or collectively and based at least in part on information stored in the one or more memories, to: receiving dynamic uplink carrier selection communications from a network node, the dynamic uplink carrier selection communications indicating one or more selected ones of a plurality of uplink carriers for transmitting Uplink Control Information (UCI) according to a UCI multiplexing configuration, and The UCI multiplexed with the one or more selected uplink carriers is sent to the network node.
2. 2. The apparatus of claim 1, wherein the one or more processors are further configured to transmit, by the UE and to the network node, UE capability information indicating UE capabilities that support dynamic uplink carrier selection for the UCI multiplexing configuration, wherein to receive the dynamic uplink carrier selection communication, the one or more processors are configured to receive the dynamic uplink carrier selection communication according to the UE capabilities.
3. 3. The apparatus of claim 1, wherein the one or more processors are further configured to receive, by the UE and from the network node, configuration information indicating a dynamic uplink carrier selection configuration, wherein to receive the dynamic uplink carrier selection communication, the one or more processors are configured to receive the dynamic uplink carrier selection communication according to the dynamic uplink carrier selection configuration.
4. 4. The apparatus of claim 1, wherein the one or more processors are further configured to receive, by the UE and from the network node, an active communication associated with a dynamic uplink carrier selection configuration, wherein to receive the dynamic uplink carrier selection communication, the one or more processors are configured to receive the dynamic uplink carrier selection communication according to the dynamic uplink carrier selection configuration.
5. 5. The apparatus of claim 1, wherein the one or more processors are further configured to send, by the UE and to the network node, a recommended communication indicating one or more of the plurality of uplink carriers.
6. 6. The apparatus of claim 5, wherein the recommended communication comprises UE assistance information.
7. 7. The apparatus of claim 5, wherein the one or more recommended uplink carriers are based on at least one measurement associated with at least one downlink carrier corresponding to at least one of the plurality of uplink carriers.
8. 8. The apparatus of claim 5, wherein the one or more recommended uplink carriers are based on at least one of buffer size, transmit power, transmit timing, multiple receiver imbalance, switching between a receive antenna chain and a transmit antenna chain, path loss difference between a downlink carrier and an associated uplink carrier, power Headroom (PHR), PHR difference between at least two uplink carriers, UE battery capacity, or quality of service requirements.
9. 9. The apparatus of claim 5, wherein the one or more processors are further configured to transmit, by the UE and to the network node, UE capability information indicating a capability to provide the recommended communication.
10. 10. The apparatus of claim 1, wherein the dynamic uplink carrier selection communication comprises Downlink Control Information (DCI) carried on a Physical Downlink Control Channel (PDCCH).
11. 11. The apparatus of claim 10, wherein the DCI comprises a DCI physical uplink control channel resource indicator, the DCI physical uplink control channel resource indicator includes at least one uplink carrier field indicating the one or more selected uplink carriers.
12. 12. The apparatus of claim 1, wherein the dynamic uplink carrier selection communication comprises a radio resource control communication comprising a physical uplink control channel resource table indicating one or more uplink carrier Identifiers (IDs) associated with the one or more selected uplink carriers for UCI resources.
13. 13. The apparatus of claim 1, wherein the one or more selected uplink carriers are associated with at least one uplink measurement at the network node.
14. 14. The apparatus of claim 13, wherein the at least one uplink measurement comprises a signal-to-interference-plus-noise ratio measurement.
15. 15. An apparatus for wireless communication at a network node, the apparatus comprising: one or more memories, and One or more processors configured, individually or collectively and based at least in part on information stored in the one or more memories, to: Transmitting a dynamic uplink carrier selection communication to a User Equipment (UE), the dynamic uplink carrier selection communication indicating one or more selected ones of a plurality of uplink carriers for transmitting Uplink Control Information (UCI) according to a UCI multiplexing configuration, and The UCI multiplexed with the one or more selected uplink carriers is received from the UE.
16. 16. The apparatus of claim 15, wherein the one or more processors are further configured to receive, by the network node and from the UE, UE capability information indicating UE capability to support dynamic uplink carrier selection for the UCI multiplexing configuration, wherein to transmit the dynamic uplink carrier selection communication, the one or more processors are configured to transmit the dynamic uplink carrier selection communication according to the UE capability.
17. 17. The apparatus of claim 15, wherein the one or more processors are further configured to transmit, by the network node and to the UE, configuration information indicating a dynamic uplink carrier selection configuration, wherein to transmit the dynamic uplink carrier selection communication, the one or more processors are configured to transmit the dynamic uplink carrier selection communication according to the dynamic uplink carrier selection configuration.
18. 18. The apparatus of claim 15, wherein the one or more processors are further configured to transmit, by the network node and to the UE, an active communication associated with a dynamic uplink carrier selection configuration, wherein to transmit the dynamic uplink carrier selection communication, the one or more processors are configured to transmit the dynamic uplink carrier selection communication according to the dynamic uplink carrier selection configuration.
19. 19. The apparatus of claim 15, wherein the one or more processors are further configured to receive, by the network node and from the UE, a recommended communication indicating one or more of the plurality of uplink carriers.
20. 20. The apparatus of claim 19, wherein the recommended communication comprises UE assistance information.

Description

Dynamic uplink carrier selection for uplink control information multiplexing Cross Reference to Related Applications This patent application claims priority to U.S. patent application No. 18/494,544 filed on 10/25 of 2023, entitled "DYNAMIC UPLINK CARRIER SELECTION FOR UPLINK CONTROL INFORMATION MULTIPLEXING (dynamic uplink carrier selection for uplink control information multiplexing)", and assigned to the assignee of the present application. The disclosure of the prior application is considered to be part of the present patent application and is incorporated by reference into the present patent application. Technical Field Aspects of the present disclosure relate generally to wireless communications and, in particular, relate to techniques, apparatuses, and methods for dynamic uplink carrier selection for uplink control information multiplexing. Background Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and/or other services. Services may include unicast services, multicast services, and/or broadcast services, among others. A typical wireless communication system may employ multiple access Radio Access Technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (e.g., time domain resources, frequency domain resources, spatial domain resources, and/or device transmit power, etc.). Examples of such multiple access RATs include Code Division Multiple Access (CDMA) systems, time Division Multiple Access (TDMA) systems, frequency Division Multiple Access (FDMA) systems, orthogonal Frequency Division Multiple Access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems. The multiple access RATs described above have been employed in various telecommunications standards to provide a common protocol that enables different wireless communication devices to communicate at the urban, national, regional or global level. An example telecommunications standard is New Radio (NR). NR, which may also be referred to as 5G, is part of the continuous mobile broadband evolution promulgated by the third generation partnership project (3 GPP). NR (and other mobile broadband evolution beyond NR) may be designed to better support internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) extensions, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, side-link and other device-to-device direct communication technologies (e.g., cellular internet of vehicles (CV 2X) communications), massive Multiple Input Multiple Output (MIMO), split network architecture and network topology extensions, multi-subscriber implementations, high-precision positioning and/or Radio Frequency (RF) sensing, and so forth. As the demand for mobile broadband access continues to grow, additional improvements in NR may be realized and other radio access technologies (such as 6G) may be introduced to further advance mobile broadband evolution. Disclosure of Invention Some aspects described herein relate to an apparatus for wireless communication at a User Equipment (UE). The apparatus may include one or more memories and one or more processors configured to receive, individually or collectively and based at least in part on information stored in the one or more memories, a dynamic uplink carrier selection communication from a network node, the dynamic uplink carrier selection communication indicating one or more selected ones of a plurality of uplink carriers for transmitting Uplink Control Information (UCI) according to a UCI multiplexing configuration. The one or more processors may be configured to send the UCI multiplexed with the one or more selected uplink carriers to the network node. Some aspects described herein relate to an apparatus for wireless communication at a network node. The apparatus may include one or more memories and one or more processors configured to, individually or collectively and based at least in part on information stored in the one or more memories, transmit a dynamic uplink carrier selection communication to a UE, the dynamic uplink carrier selection communication indicating one or more selected uplink carriers of a plurality of uplink carriers for transmitting UCI according to a UCI multiplexing configuration. The one or more processors may be configured to receive the UCI multiplexed with the one or more selected uplink carriers from the UE. Some aspects described herein relate to a method of wireless communication performed at a UE. The method may include receiving, by the UE and from a network node, a dynamic uplink carrier selection communication indicating one or more selected ones of a plurality of uplink carriers for transmitting UCI according to a UCI multiplexing configuration