公开(公告)号：US20210143869A1

公开(公告)日：2021-05-13

申请号：US16949330

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Peter GAAL ,  Tao LUO

IPC: H04B7/024 ,  H04L5/00 ,  H04W72/04 ,  H04L1/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating at least one of an antenna port selection or a time-domain resource allocation (TDRA) configuration for a communication; identify a multi-transmit-receive point (multi-TRP) scheme for the communication based at least in part on: at least one of the antenna port selection or the TDRA configuration, and a set of multi-TRP schemes enabled for the UE; and perform the communication in accordance with the multi-TRP scheme. Numerous other aspects are provided.

公开(公告)号：US20210136818A1

公开(公告)日：2021-05-06

申请号：US17061125

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh DEOGUN ,  Abhijit BHATTACHARYA ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Jing SUN ,  Kapil BHATTAD ,  Tanumay DATTA

IPC: H04W74/08 ,  H04W76/18 ,  H04W76/19 ,  H04W72/04 ,  H04W52/36 ,  H04W24/08 ,  H04W74/02

Abstract: The present disclosure relates to wireless communications, and more particularly to enhancements to a random access channel (RACH) procedure for use in New Radio (e.g., 5G) communications in the unlicensed spectrum (also referred to as NR-U). The present disclosure provides a user equipment (UE) or network entity that determines an available RACH occasion (RO) within a slot for a message transmission according to one of a two-step RACH procedure or a four-step RACH procedure, wherein the available RO is adjacent to at least one unavailable RO within the slot. The UE or network entity may further perform, during the RO, the message transmission according to one of the two-step RACH procedure or the four-step RACH procedure.

公开(公告)号：US20210136685A1

公开(公告)日：2021-05-06

申请号：US16949301

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Tao LUO ,  Xiaoxia ZHANG

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that includes a combined indication of a minimum timing value, associated with a timing for transmission or reception of a communication corresponding to the DCI, and a search space set group. The UE may monitor the search space set group, or commence a sleep mode, based at least in part on the DCI. Numerous other aspects are provided.

公开(公告)号：US20210127359A1

公开(公告)日：2021-04-29

申请号：US17066996

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Le LIU ,  Prasad Reddy KADIRI ,  Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Xiaoxia ZHANG ,  Tao LUO ,  Mostafa KHOSHNEVISAN ,  Jing SUN ,  Xipeng ZHU ,  Wooseok NAM ,  Wanshi CHEN ,  Amer CATOVIC

IPC: H04W72/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W76/27

Abstract: Various aspects provide a method for radio resource allocation to support multicast services from a 5G-NR base station. In some aspects, the method may be performed by a processor of the base station. Various aspects include determining a multicast bandwidth part (BWP) within a carrier bandwidth, sending an indication of the multicast BWP to one or more user equipment (UE) computing devices in communication with the base station, and scheduling transmission of multicast data in the multicast BWP.

公开(公告)号：US20210127285A1

公开(公告)日：2021-04-29

申请号：US17081630

申请日：2020-10-27

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Huilin XU

IPC: H04W24/08 ,  H04W72/12 ,  H04L1/00 ,  H04W72/04 ,  H04W8/24 ,  H04L5/00

Abstract: Since multiple transmit-receive point (TRP) communications may increase the number of physical downlink control channel (PDCCH) candidates or non-overlapped control channel elements (CCEs) without increasing the number of cells, new limits for multi-TRP communications including overbooking may be defined. A UE may determine whether a per scheduled cell limit is greater than a per TRP limit for a primary cell. The UE may identify, based on the determining, a set of search spaces of a PDCCH on which overbooking is permitted. The UE may receive the PDCCH from the primary cell within the slot. The UE may perform blind decoding operations on CCEs within the identified set of search spaces of the PDCCH within at least a total monitoring limit for a group of component carriers having a same sub-carrier spacing (SCS) as the primary cell and the per cell monitoring limit for the primary cell.

公开(公告)号：US20210112603A1

公开(公告)日：2021-04-15

申请号：US17068585

申请日：2020-10-12

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Jing LEI

IPC: H04W74/08 ,  H04L5/14

Abstract: Wireless communications systems and methods are provided for validating a physical uplink shared channel (PUSCH) occasion defined for 2-step random access channel (RACH) in case of collisions. For example, the user equipment (UE) may determine whether a collision occurs between the PUSCH occasion for the 2-step RACH and any RACH occasion assigned for either 2-step RACH or 4-step RACH after receiving the RACH configuration or updates from the network. The UE may then exclude the PUSCH occasion from the resource pool for 2-step RACH when a collision occurs.

公开(公告)号：US20210112420A1

公开(公告)日：2021-04-15

申请号：US17125182

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan VAJAPEYAM ,  Jelena DAMNJANOVIC ,  Aleksandar DAMNJANOVIC ,  Tao LUO ,  Jing SUN ,  Taesang YOO ,  Yongbin WEI

IPC: H04W16/14 ,  H04L1/00 ,  H04L1/18 ,  H04W76/28 ,  H04W74/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. Discontinuous reception (DRX) operation may be configured differently on enhanced component carriers (eCCs) than on other component carriers, including a primary cell (PCell). In some cases, a user equipment (UE) may be configured with several different eCC DRX modes. An eCC DRX configuration may, for example, be coordinated with downlink (DL) transmission time interval (TTI) scheduling so each DRX ON duration may correspond to a DL burst duration of the corresponding eCC. The eCC DRX ON durations may also be scheduled according to hybrid automatic repeat request (HARQ) process scheduling. In some examples, eCC DRX ON durations may be based on listen-before-talk (LBT) procedures. In some cases, eCC DRX ON durations may be configured to contain an uplink (UL) burst to enable channel state information (CSI) reporting. The eCC DRX may also be configured to minimize interruption of the PCell.

公开(公告)号：US20210111817A1

公开(公告)日：2021-04-15

申请号：US16949019

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Yan ZHOU ,  Tao LUO ,  Xiaoxia ZHANG ,  Peter GAAL ,  Arumugam CHENDAMARAI KANNAN ,  Jing SUN

IPC: H04B17/318 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a layer one reference signal received power (L1-RSRP) measurement report to include an indication of L1-RSRP measurements associated with one or more synchronization signal bocks (SSBs) included in an SSB set, wherein the SSB set is identified, from a plurality of SSB sets, in the L1-RSRP measurement report by an SSB set indicator, and wherein the one or more SSBs are identified in the L1-RSRP measurement report by respective SSB indexes that index into the SSB set. The UE may transmit the L1-RSRP measurement report. Numerous other aspects are provided.

公开(公告)号：US20210105823A1

公开(公告)日：2021-04-08

申请号：US16947362

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Jing LEI ,  Linhai HE ,  Yi HUANG ,  Chih-Hao LIU

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/00 ,  H04W52/02 ,  H04W24/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may attempt to receive one or more random access channel (RACH) messages from one or more user equipment (UEs); and transmit, based at least in part on the determination of a completion of processing of any received RACH messages of the one or more RACH messages, an early termination message to a UE to terminate a random access response window. In some aspects, a UE may transmit another RACH message as a response to receiving the early termination message. Numerous other aspects are provided.

公开(公告)号：US20210105166A1

公开(公告)日：2021-04-08

申请号：US17062235

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Peter GAAL ,  Tao LUO ,  Jing SUN ,  Tae Min KIM ,  Arumugam CHENDAMARAI KANNAN

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W8/24 ,  H04L5/10

Abstract: A phase tracking reference signal (PT-RS) may be transmitted to enable a receiver to correct phase noise in wireless communication. A UE scheduled for one PDSCH with DMRS ports in two or more DMRS CDM groups that are associated with two TCI states may be configured for PT-RS using two PT-RS ports. Therefore, rather than limiting PT-RS to a single port, the PT-RS may be transmitted to the UE using two PT-RS ports. The apparatus transmits a capability indication for more than one PT-RS port for receiving a downlink shared channel based on a first TCI and a second TCI. The apparatus receives a configuration for a maximum number of downlink PT-RS ports from a base station.