Qualcomm Incorporated

Genxcomm, Inc.

Yitao Chen

Mostafa Khoshnevisan

Xiaoxia Zhang

Jing X Sun

Tao Luo

Peter S Gaal

Fang Yuan

Yan Zhou

Wooseok Nam

Juan Montojo

Sony Akkarakaran

Aleksandar Damnjanovic

Rajat Prakash

Mahmoud Taherzadeh Boroujeni

Sriram Vishwanath

Hardik Jain

Ian P Roberts

Rajesh K Mishra

Dan Schwartz

Determining, by a user equipment (UE) of a wireless communication system, that a physical uplink control channel (PUCCH) transmission of the UE carrying uplink control information (UCI) will collide upon transmission with another physical uplink shared channel (PUSCH) transmission of the UE. The UE then multiplexes, in response to the determining, the UCI on the PUSCH transmission based on one or more of the beam of the PUCCH transmission and the beam of the particular PUSCH transmission.

Uplink control information multiplexing

A configuration to allow a UE to determine if a detected PDCCH corresponds to a linked PDCCH candidate with repetition. The apparatus monitors for a PDCCH based on a DRX configuration, the DRX configuration having an inactivity timer. The apparatus determines whether the PDCCH corresponds to a linked PDCCH candidate and a new transmission is scheduled, wherein the linked PDCCH candidate is comprised of two or more PDCCH repetitions. The apparatus starts the inactivity timer in a first symbol after an end of at least one of the two or more PDCCH repetitions.

Discontinuous reception inactivity timer for PDCCH repetition

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of path loss compensation values corresponding to the reference signal indices. The UE may measure resources associated with the reference signal indices to generate path loss measurements. The UE may transmit a sounding reference signal using a transmission power based on the path loss measurements and the path loss compensation values.

Power control for sounding reference signals

Methods, systems, and devices for wireless communications are described. In some aspects, a user equipment (UE) and a network entity may support one or more signaling- or configuration-based mechanisms according to which the UE and the network entity may dynamically control a type of semi-persistent SRS resource set associated with activation and deactivation by downlink control information (DCI). The network entity may transmit an indication of a set of semi-persistent SRS resource sets associated with DCI activation to the UE via radio resource control (RRC) signaling and may activate one or more semi-persistent SRS resource sets from the set of semi-persistent SRS resource sets via a DCI message. To facilitate activation by DCI, the UE and the network entity may support a mapping between a set of DCI codepoints and multiple sets of one or more semi-persistent SRS resource sets.

Downlink control information activation for semi-persistent sounding reference signal resource sets

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first downlink control information (DCI) repetition, for scheduling a physical downlink shared channel (PDSCH), wherein the first DCI repetition is associated with a first physical downlink control channel (PDCCH) candidate. The UE may receive a second DCI repetition associated with a second PDCCH candidate that is linked to the first PDCCH candidate for DCI repetition. The UE may transmit a feedback associated with a first symbol of a physical uplink control channel (PUCCH) based at least in part on determining a processing time and an additional processing time, wherein determining the additional processing time comprises determining the additional processing time based at least in part on a parameter associated with at least one of the first PDCCH candidate or the second PDCCH candidate. Numerous other aspects are described.

User equipment processing time for physical downlink shared channel scheduled using downlink control information repetition

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information, associated with a first sounding reference signal (SRS) resource set, indicating that a first one or more groups of SRS resource sets, from multiple groups of SRS resource sets, are associated with the first SRS resource set. The UE may receive an indication that a first group, from the multiple groups, is activated for SRS transmissions, the first group being included in the first one or more groups that are associated with the first SRS resource set. The UE may transmit an SRS using an SRS resource associated with the first SRS resource set based at least in part on the first group being activated and the first group being included in the first one or more groups. Numerous other aspects are provided.

Sounding reference signal resource set group switching

Methods, systems, and devices for wireless communications are described. A wireless communications system may support quasi co-location prioritization techniques. A user equipment (UE) may receive control signaling to monitor at least one control resource set. The UE may receive a control message to monitor a shared data channel that overlaps in time with the at least one control resource set. For example, the control message may schedule a downlink message via the shared data channel in a time period of the at least one control resource set. The UE may monitor the at least one control resource set, the shared data channel, or both based on one or more priority rules. A priority rule may indicate to monitor a corresponding control resource set, shared data channel, or both based on whether the quasi co-location assumptions of the various control resource sets or shared data channels are the same or different.

Quasi co-location prioritization for wireless communications systems

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message scheduling transmission, by the UE, of uplink control information (UCI) in a physical uplink control channel (PUCCH) resource. The UE may receive an indication that the UE is scheduled to transmit the UCI in the PUCCH resource to both a first transmission-reception point (TRP) and a second TRP. The UE may also receive a first set of uplink power control parameters for transmitting the UCI to the first TRP and a second set of uplink power control parameters for transmitting the UCI to the second TRP. The UE may transmit the UCI to the first TRP and to the second TRP in the PUCCH resource, based on the first set and the second set of uplink power control parameters, and without an uplink control channel beam indication.

Transmitting uplink control information on physical uplink control channels using different transmit powers

Methods, systems, and devices for wireless communications are described that provide for transmission of multiple repetitions of uplink control information (UCI) multiplexed with uplink data in which a spectral efficiency ratio of the uplink data to the UCI is scaled based on one or more parameters associated with the multiple repetitions. The one or more parameters may include, for example, a number of repetitions of the uplink data, a number of repetitions for a particular UCI, whether multiple beams are used to transmit instances of a repetition, a type of UCI, or any combinations thereof.

Uplink control information multiplexing techniques for uplink communications using multiple repetitions

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for maintaining, between a user equipment (UE) and a component of a base station (BS), a mutual understanding of multiple sets of linked physical downlink control channel (PDCCH) candidates if some PDCCH candidates of the multiple sets of linked PDCCH candidates occupy a same set of resources. In one aspect, the UE may select to monitor one of the PDCCH candidates that occupy the same set of resources in accordance with a prioritization rule. Upon selecting one of the PDCCH candidates that occupy the same set of resources for monitoring by the UE, the UE and the component of the BS may select a reference PDCCH candidate for one or more of the multiple sets of PDCCH candidates in accordance with a reference selection rule.

Managing the selection of reference physical downlink control channel (PDCCH) candidates in deployments featuring PDCCH repetition with overlapping search space (SS) sets

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, first control signaling indicating a single frequency network (SFN) configuration associated with a first sounding reference signal (SRS) resource of an SRS resource set, where the SFN configuration indicates multiple sets of transmission parameters for SFN transmissions associated with the first SRS resource. The UE may then transmit an SRS associated with the first SRS resource in accordance with a first set of transmission parameters indicated by the SFN configuration. The UE may further transmit the SRS associated with the first SRS resource in accordance with a second set of transmission parameters indicated by the SFN configuration.

Techniques for single frequency network sounding reference signal transmission

Certain aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for transmitting repetitions of uplink data (e.g., physical uplink shared channel (PUSCH)), in particular, for transmitting PUSCH repetitions in multiple transmission and reception points (multi-TRP) and/or multi-panel configurations. In a general aspect, the present disclosure provides techniques for signaling user equipment (UE) capability regarding codebook based and non-codebook based uplink transmissions in multi-TRP for improving reliability and robustness. For example, a UE may signal to a network entity an indication of a capability to support PUSCH transmission with at least two sets of repetitions. Each set of repetitions is associated with at least one sounding reference signal (SRS) resource set.

Indicating capability for codebook based and non-codebook based physical uplink shared channel (PUSCH) transmissions

Certain aspects of the present disclosure provide techniques for detecting a potential collision between a scheduled uplink transmission and a synchronization signal block (SSB) and transmitting the scheduled uplink transmission. For example, in cases of inter-cell multi-transmission and reception points (multi-TRP), a user equipment (UE) may not be capable of simultaneously transmitting and receiving on the multiple serving cells. A first serving cell may indicate to the UE of SSB indices that are actually transmitted for a second serving cell. If there is a slot collision between one of the SSB to be transmitted and a scheduled uplink transmission, the UE may not be able to handle such collision. The present disclosure provides techniques for detecting a potential collision between a scheduled uplink transmission and one of the SSBs and transmitting the scheduled uplink transmission when one or more conditions are met.

Managing potential collision between uplink transmission and synchronization signal block (SSB)

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain a set of binary sequences, each binary sequence in the set of binary sequences indicating a number of candidate sounding reference signal (SRS) transmission occasions for a time period, wherein a first value for a location in a binary sequence indicates that an SRS is to be transmitted for an SRS transmission occasion corresponding to the location and a second value for the location in the binary sequence indicates that the SRS is not to be transmitted for the SRS transmission occasion corresponding to the location. The UE may select a binary sequence from the set of binary sequences based at least in part on a pseudo-random sequence. The UE may transmit the SRS in accordance with the selected binary sequence. Numerous other aspects are described.

Pseudo-random sounding reference signal transmission

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a message scheduling transmission, by the UE, of uplink control information (UCI) in an uplink control channel resource, such as a physical uplink control channel (PUCCH) resource. The UE may receive an indication that the UE is scheduled to transmit the UCI via a first beam during the uplink control channel resource and via a second beam during the uplink control channel resource, where the first beam may be directed to a first base station and the second beam may be directed to a second base station. The UE may determine a number of repetitions associated with transmitting the UCI, and transmit the UCI via one of inter-slot repetition, intra-uplink control channel resource beam hopping, or intra-slot repetition based on the number of repetitions.

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San Diego, CA, United States of America

Yitao Chen