Samsung Electronics Co., Ltd.

Cisco Technology, Inc.

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Texas Instruments Corporation

Li Guo

Young-Han Nam

Hang Jin

Eko Nugroho Onggosanusi

Boon Loong Ng

Md Saifur Rahman

Sudhir Ramakrishna

Aris Papasakellariou

Hanqing Lou

Jianzhong Zhang

Hongbo Si

Genyuan Wang

Matthew Aaron Silverman

Yang Li

Paul Jeffrey Stager

Thomas David Novlan

Hao Chen

John Grabner

Taeyoung Kim

Vikram Chandrasekhar

Namjeong Lee

Neil Robert Diener

Yanxin Na

Gert-Jan Van Lieshout

Le Liu

Sridhar Rajagopal

Yinan Qi

Ahmadreza Hedayat

Chandra Vaidyanathan

Chao He

Qingwen Liu

Bror Peterson

Chang-Sik Choi

Weiguo Xie

Lin Zeng

A method for transmitting on a physical uplink shared channel, PUSCH is provided. The method comprising: receiving, by a terminal device, configuration information including M transmission configuration indication, TCI, states; receiving, by the terminal device, an activation command to activate K of the M TCI states; receiving, by the terminal device, downlink control information, DCI, to schedule a PUSCH transmission, the DCI indicating a selected TCI state from among the K TCI states; determining, by the terminal device, a spatial domain transmission filter using the selected TCI state; and transmitting, by the terminal device, on the PUSCH according to the determined spatial domain transmission filter.

Method, terminal device and network device for physical uplink shared channel transmission

Methods and devices for configuring a transmission configuration indicator (TCI) are provided. In some embodiments, the method includes (i) receiving a list of TCI states by a terminal device; and (ii) determining a joint TCI, by the terminal device, based on the list of the TCI states. At least one of the TCI states includes one or more first parameters for a downlink (DL) transmission and one or more second parameters for an uplink (UL) transmission. The joint TCI indicates parameters for both DL and UL transmissions of the terminal device.

Methods and systems of downlink and uplink transmission configuration indicator (TCI)

Methods and devices for beam failure recovery are provided. A method for beam failure recovery includes: when a terminal device in a common beam operation mode detects beam failure in a cell, sending, by the terminal device, a beam failure recovery request message to a network device, wherein the beam failure recovery request message includes indication of a selected candidate beam; and after the beam failure recovery request message is received by the network device and before the terminal device receives indication of a transmission configuration indicator (TCI) state for common beam operation from the network device, performing, by the terminal device, physical downlink control channel (PDCCH) reception and physical downlink shared channel (PDSCH) reception on the cell by using same antenna port quasi co-location (QCL) parameters as the ones associated with the selected candidate beam.

Method and device for beam failure recovery

Embodiments of the present disclosure provide a communication method and device. The method comprises: the terminal measures at least two CSI-RS resources or SS/PBCH blocks selected from one or more resource settings configured for group-based SINR report; the terminal calculates SINRs of CRIs or SSBRIs corresponding to the selected CSI-RS resources or SS/PBCH blocks according to the measurement results of the selected CSI-RS resources or SS/PBCH blocks and the terminal reports the CRIs or SSBRIs and their SINRs to the network device.

Communication method and device

An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes being scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions and being indicated with transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

Apparatus and method of wireless communication

Disclosed herein are apparatus and methods to operate a communication device (UE) in a common beam mode. According to an aspect, the UE may assume that beam characteristics for a single common beam can be reused by multiple channels and reference signals without the need for repeated signaling indicating the Tx beam in subsequent transmissions, such that network bandwidth consumption can be reduced and latency can be improved. In some embodiments, the common beam may be indicated with a TCI-state through a L1 signaling such as DCI signaling. In some embodiments, the common beam may be indicated with a TCI-state through a MAC CE message.

Methods and apparatus of single common beam-based operation

An information reporting method and apparatus and a user equipment (UE) are provided. A UE receives first configuration information from a network device, measures the N reference signals based on the first configuration information, selects at least one reference signal from the N reference signals, and reports information related to each of the at least one reference signal, where the first configuration information is used for determining configuration of N reference signals, and N is an integer greater than 1.

Information reporting method and apparatus, and user equipment

A method of a first UE comprises: determining a sidelink synchronization identity (SL-SID) and a set of resources; generating at least one sidelink synchronization signal and physical broadcast channel (S-SSB) based on the SL-SID and the set of resources, wherein each S-SSB of the at least one S-SSB includes first two symbols for a sidelink primary synchronization signal (S-PSS) and second two symbols for a sidelink secondary synchronization signal (S-SSS); generating a first sequence corresponding to the S-PSS, wherein the first sequence is determined based on a binary phase shift keying (BPSK) modulated M-sequence with a 127 of sequence length and a low cross-correlation with a PSS; generating a second sequence corresponding to the S-SSS, wherein the second sequence is determined based on a BPSK modulated Gold-sequence with a 127 of sequence length; and transmitting, the at least one S-SSB over sidelink channels established with the second UE.

Method and apparatus for NR sidelink SS/PBCH block

A method and apparatus for beam management and a non-transitory computer-readable storage medium are provided. The method includes that: UE sends a MAC CE message for BFRQ to a first SCell, the MAC CE message being carried in a first PUSCH at slot n, and the first PUSCH corresponding to a first HARQ process number; the UE monitors a first DCI in a first time window, the first DCI being used for scheduling the first PUSCH corresponding to the first HARQ process number; and in response to not receiving the first DCI within the first time window, the UE determines that beam failure recovery for the first SCell is completed.

Method and apparatus for beam management, and computer-readable storage medium

A user equipment (UE) and a method of uplink beam management are provided. The method includes being configured, by a source cell, an uplink transmit beam for an uplink transmission for a target cell and transmitting, to the target cell, the configured uplink transmit beam for the uplink transmission. During a handover from the source cell to the target cell, the uplink transmit beam for the UE to the target cell is determined based on collaboration between the source cell and the target cell. The method enables a random access channel-free (RACH-free) handover procedure which reduces latency of handover and overhead of signaling and resource.

User equipment and method of uplink beam management

A method and device for SRS transmission, a network device and a UE are provided. The method includes: a serving cell transmits, to a UE, a first configuration for positioning, the first configuration is configuration of a first SRS resource or configuration of a first SRS resource set; and the serving cell receives a first location information request from a location server, the first location information request is used for requesting the serving cell to measure the SRS transmission from the UE; here, a second location information request is transmitted to a neighbor cell by the location server, the second location information request is used for requesting the neighbor cell to measure the SRS transmission from the UE.

Method and device for SRS transmission, network device and UE

A method of user equipment (UE) for random access operation in a wireless communication system is provided. The method comprises receiving, from a base station (BS), random access channel (RACH) configuration information including RACH chunk information corresponding to at least one antenna beam including a beam identifier (ID), determining a RACH chunk based on the RACH configuration information received from the BS, transmitting, to the BS, a RACH preamble on the determined RACH chunk according to the RACH configuration information associated with the beam ID, and receiving, from the BS, a RACH response (RAR) corresponding to the transmitted RACH preamble and a downlink channel for a RAR transmission, wherein a random access-radio network temporary identification (RA-RNTI) is calculated based on an index of a slot and an index of the RACH chunk on which the RACH preamble is transmitted.

Method and apparatus for RACH procedure in wireless systems

A method and apparatus for configuring PRS resources are provided. The method includes that UE receives configuration information for a PRS resource set from a network device. The configuration information includes a respective PRS muting configuration for each PRS resource in the PRS resource set, and different PRS muting configurations are configured for different PRS resources in the PRS resource set.

Method and apparatus for configuring PRS resources

A reference signal determination method includes: receiving, by UE, first configuration information. The first configuration information is used for determining configuration information of a Sounding Reference Signal (SRS) resource set, the configuration information of the SRS resource set includes first indication information for indicating an index of a first reference signal source, and the first reference signal resource is used for estimating a pathloss of a first SRS resource of the SRS resource set.

Reference signal determination method and device, and UE

A method of a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from at least one transmission and reception point (TRP) of a group of (N) TRPs, channel status information (CSI) configuration information, determining a CSI report based on the CSI configuration information, identifying, based on the configuration information, one or more TRPs of the group of (N) TRPs to transmit the determined CSI report, and transmitting, to the one or more TRPs, the determined CSI report over an uplink channel. The determined CSI report includes a TRP indicator for selecting (M) TRPs of the group of (N) TRPs, and CSI for each of the selected (M) TRPs, wherein N is greater than one, and wherein M is greater or equal to 1, and less or equal to N.

Growing community of inventors

Allen, TX, United States of America

Li Guo