US-12628146-B2 - Uplink cancellation indication for supplementary uplink carriers

US12628146B2US 12628146 B2US12628146 B2US 12628146B2US-12628146-B2

Abstract

Aspects are presented which enable a UE to determine a supplementary uplink (SUL) configuration for an uplink cancellation indication (ULCI) for cancelling uplink communications in SUL. The UE receives from a base station a first configuration associated with a first block of an ULCI and associated with at least one of a SUL carrier a non-supplementary uplink (NUL) carrier in a cell. The base station configures the UE with a second configuration associated with a second block of the ULCI and associated with a SUL carrier in the cell, and the UE determines the second configuration. The UE monitors the ULCI based on the first configuration and the second configuration.

Inventors

Wei Yang
Seyedkianoush HOSSEINI
Seyed Ali Akbar FAKOORIAN
Wanshi Chen

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260512
Application Date: 20241024

Claims (14)

1 . An apparatus for wireless communication at a user equipment (UE), comprising: at least one memory; and at least one processor coupled to the at least one memory and, based at least in part on information stored in the at least one memory, the at least one processor is configured to: receive, from a base station, a first configuration associated with a first block of an uplink cancellation indication (ULCI), wherein the first configuration is associated with at least one of a supplementary uplink (SUL) carrier or a non-supplementary uplink (NUL) carrier; and monitor the ULCI based on the first configuration and a second configuration associated with a second block of the ULCI, wherein the second configuration is associated with the SUL carrier, wherein the first configuration includes a NUL size parameter indicating a first number of bits associated with the first block, and the second configuration includes a SUL cancellation indication (CI) payload size parameter indicating a second number of bits associated with the second block, and wherein the first configuration and the second configuration are configured under a same RRC parameter and the SUL CI payload size parameter is the same as the NUL size parameter.
2 . The apparatus of claim 1 , wherein the first configuration and the second configuration are associated with a same size parameter indicating a number of bits associated with the first block and the second block.
3 . The apparatus of claim 1 , wherein the first configuration includes a first indication of NUL time domain resources associated with the first block, and wherein the second configuration includes a second indication of SUL time domain resources associated with the second block.
4 . The apparatus of claim 3 , wherein a NUL duration of the NUL time domain resources is a same duration as a SUL duration of the SUL time domain resources.
5 . The apparatus of claim 1 , wherein the first configuration and the second configuration are associated with a same indication of time domain resources associated with the first block and the second block.
6 . The apparatus of claim 1 , wherein the first configuration includes a NUL time domain granularity associated with the first block, and wherein the second configuration includes a SUL time domain granularity associated with the second block.
7 . The apparatus of claim 6 , wherein the NUL time domain granularity is a same granularity as the SUL time domain granularity.
8 . The apparatus of claim 1 , wherein the first configuration and the second configuration are associated with a same time domain granularity associated with the first block and the second block.
9 . A method of wireless communication of a user equipment (UE), comprising: receiving, from a base station, a first configuration associated with a first block of an uplink cancellation indication (ULCI), wherein the first configuration is associated with at least one of a supplementary uplink (SUL) carrier or a non-supplementary uplink (NUL) carrier; and monitoring the ULCI based on the first configuration and a second configuration associated with a second block of the ULCI, wherein the second configuration is associated with the SUL carrier, wherein the first configuration includes a NUL size parameter indicating a first number of bits associated with the first block, and the second configuration includes a SUL cancellation indication (CD) payload size parameter indicating a second number of bits associated with the second block, and wherein the first configuration and the second configuration are configured under a same RRC parameter and the SUL CI payload size parameter is the same as the NUL size parameter.
10 . The method of claim 9 , wherein the first configuration and the second configuration are associated with a same size parameter indicating a number of bits associated with the first block and the second block.
11 . The method of claim 9 , wherein the first configuration and the second configuration are associated with a same time domain granularity associated with the first block and the second block.
12 . The method of claim 9 , wherein the first configuration and the second configuration are associated with a same indication of time domain resources associated with the first block and the second block.
13 . A non-transitory computer-readable medium storing computer executable code at a user equipment (UE), the code when executed by at least one processor causes the at least one processor to: receive, from a base station, a first configuration associated with a first block of an uplink cancellation indication (ULCI), wherein the first configuration is associated with at least one of a supplementary uplink (SUL) carrier or a non-supplementary uplink (NUL) carrier; and monitor the ULCI based on the first configuration and a second configuration associated with a second block of the ULCI, wherein the second configuration is associated with the SUL carrier, wherein the first configuration includes a NUL size parameter indicating a first number of bits associated with the first block, and the second configuration includes a SUL cancellation indication (CD) payload size parameter indicating a second number of bits associated with the second block, and wherein the first configuration and the second configuration are configured under a same RRC parameter and the SUL CI payload size parameter is the same as the NUL size parameter.
14 . The non-transitory computer-readable medium of claim 13 , wherein the first configuration and the second configuration are associated with a same size parameter indicating a number of bits associated with the first block and the second block.

Description

CROSS REFERENCE TO RELATED APPLICATION(S) This application is a Continuation of U.S. Non-provisional application Ser. No. 18/163,218, entitled “UPLINK CANCELLATION INDICATION FOR SUPPLEMENTARY UPLINK CARRIERS” and filed Feb. 1, 2023, which is a Continuation of U.S. Non-provisional application Ser. No. 17/111,389, entitled “METHODS TO CONFIGURE UPLINK CANCELLATION INDICATION FOR SUPPLEMENTARY UPLINK CARRIERS” and filed Dec. 3, 2020, issued as U.S. Pat. No. 11,601,940, which claims the benefit of U.S. Provisional Application Ser. No. 62/943,768, entitled “METHODS TO CONFIGURE UPLINK CANCELLATION INDICATION FOR SUPPLEMENTARY UPLINK CARRIERS” and filed on Dec. 4, 2019, each of which is expressly incorporated by reference herein in its entirety. BACKGROUND Technical Field The present disclosure relates generally to communication systems, and more particularly, to wireless communication systems between a user equipment (UE) and a base station (BS). Introduction Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple-access technologies 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. These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of a continuous mobile broadband evolution promulgated by Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There exists a need for further improvements in 5G NR technology. These improvements may also be applicable to other multi-access technologies and the telecommunication standards that employ these technologies. SUMMARY The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later. After a base station schedules resources for a UE to use in transmission or reception, e.g., of enhanced mobile broadband (eMBB) data, the base station may become aware of a more urgent, higher priority transmission from another UE. For example, the other transmission may be from a latency sensitive device utilizing ultra-reliable, low latency communication (URLLC). In such circumstances, the base station may reclaim the resources previously scheduled to the first, lower priority UE for use by the second, higher priority UE. In particular, if the previously scheduled resources are for a downlink transmission, the base station may send a downlink cancellation indication (DLCI) (or downlink preemption indication) in a DLCI occasion to the first UE cancelling at least a portion of the downlink transmission to that UE. Similarly, if the previously scheduled resources are for an uplink transmission, the base station may send an uplink cancellation indication (ULCI) (or uplink preemption indication) in an ULCI occasion to the first UE to cancel at least a portion of the uplink transmission from that UE. The base station may then allocate those reclaimed resources to the higher priority, latency sensitive UE. Additionally, a UE may be configured with two uplink carriers in the same uplink serving cell, namely a supplementary uplink (SUL) carrier and a non-supplementary uplink (NUL) carrier, and the base station may semi-statically or dynamically schedule uplink transmissions on either the NUL or SUL. When the base station sends ULCI to the UE to cancel a previously scheduled uplink transmission, the UE may determine whether to apply the ULCI to cancel uplink transmissions on NUL or SUL. For example, the base station may configure the UE to monitor separate