公开(公告)号：WO2021129558A1

公开(公告)日：2021-07-01

申请号：PCT/CN2020/137924

申请日：2020-12-21

Applicant: QUALCOMM INCORPORATED ,  LI, Qiaoyu ,  WEI, Chao ,  LEI, Jing

Inventor： LI, Qiaoyu ,  WEI, Chao ,  LEI, Jing

IPC: H04W74/00 ,  H04W74/08 ,  H04L1/18

Abstract: Methods, systems, and devices are described for transmitting multiple repetitions of a random access shared channel message in multiple slots using beamformed wireless communications. A UE may determine transmission slots for one or more of the multiple repetitions of a random access shared channel message based on slots associated with random access occasions (ROs) that are mapped to an identified synchronization signal block (SSB), such as a SSB associated with a beam that is selected for communications by the UE. In cases where slots with ROs mapped to the identified SSB are not consecutively located, one or more slot offsets may be provided for transmitting the multiple repetitions of the random access shared channel message. Slot offsets may be explicitly indicated by a base station in a random access response message, or may be determined by the UE based on a mapping of SSBs to ROs.

公开(公告)号：WO2021109016A1

公开(公告)日：2021-06-10

申请号：PCT/CN2019/122892

申请日：2019-12-04

Applicant: QUALCOMM INCORPORATED ,  LI, Qiaoyu ,  LEI, Jing ,  WEI, Chao ,  HUANG, Min

Inventor： LI, Qiaoyu ,  LEI, Jing ,  WEI, Chao ,  HUANG, Min

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to an early indication, from a base station to a user equipment (UE), that may allow the UE to determine from the first symbol of a synchronization signal block (SSB) if the system information associated with the SSB is intended for the UE. Thus, when the UE receives the indication that the system information is dedicated to the UE, the UE may determine to receive and decode the remaining synchronization signal block, a master information block, a set of control resources, a downlink control channel, and a downlink shared channel to receive the system information. In some cases, the UE may determine that the system information is generic and end decoding during reception of the SSB to conserve computational resources by avoiding unnecessary decoding.

公开(公告)号：WO2021102794A1

公开(公告)日：2021-06-03

申请号：PCT/CN2019/121589

申请日：2019-11-28

Applicant: QUALCOMM INCORPORATED ,  LI, Qiaoyu ,  LEI, Jing ,  WEI, Chao ,  CHEN, Wanshi ,  PHUYAL, Umesh ,  ANG, Peter Pui Lok ,  MUKKAVILLI, Krishna Kiran ,  XU, Hao

Inventor： LI, Qiaoyu ,  LEI, Jing ,  WEI, Chao ,  CHEN, Wanshi ,  PHUYAL, Umesh ,  ANG, Peter Pui Lok ,  MUKKAVILLI, Krishna Kiran ,  XU, Hao

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A group of random access channel opportunities are identified over which to transmit a preamble associated with a random access channel procedure. A preamble sequence group associated with the identified group of random access channel opportunities is determined based on a repetition level associated with the preamble sequence group. At least one downlink message associated with the random access channel procedure is received based on the repetition level.

公开(公告)号：WO2021088785A1

公开(公告)日：2021-05-14

申请号：PCT/CN2020/126070

申请日：2020-11-03

Applicant: QUALCOMM INCORPORATED ,  LEI, Jing ,  ZHENG, Ruiming ,  HE, Linhai

Inventor： LEI, Jing ,  ZHENG, Ruiming ,  HE, Linhai

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described to differentiate random access response types, such that a user equipment (UE) may identify a random access response for the UE. A UE may transmit a random access message that may be associated with a first type of random access response. The base station may be configured to communicate different types of random access responses, and may configure a random access response and an associated downlink control signal to correspond to the first type of random access response. The base station may transmit the downlink control signal to the UE by configuring different demodulation reference signals, different group identifiers, different search spaces or control resource sets, or different downlink control information. The UE may determine that the random access response is of the first type and may receive the random access response based on the decoded downlink control signal.

公开(公告)号：WO2021087850A1

公开(公告)日：2021-05-14

申请号：PCT/CN2019/116195

申请日：2019-11-07

Applicant: QUALCOMM INCORPORATED ,  LEI, Jing ,  ANG, Peter Pui Lok ,  HE, Linhai ,  ZHENG, Ruiming ,  XU, Huilin ,  CHEN, Wanshi ,  LI, Qiaoyu ,  WEI, Chao ,  MUKKAVILLI, Krishna

Inventor： LEI, Jing ,  ANG, Peter Pui Lok ,  HE, Linhai ,  ZHENG, Ruiming ,  XU, Huilin ,  CHEN, Wanshi ,  LI, Qiaoyu ,  WEI, Chao ,  MUKKAVILLI, Krishna

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, configuration information related to a random access procedure. For example, in some aspects, the configuration information may include a physical random access channel mask configuration based at least in part on a random access occasion density in a time and frequency domain in a cell served by the base station, a random access response configuration based at least in part on an indication transmitted from the UE to the base station, and/or the like. Accordingly, the UE may perform the random access procedure based at least in part on the configuration information, which may be indicated to the UE in system information, radio resource control signaling, and/or the like. Numerous other aspects are provided.

公开(公告)号：WO2021076584A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/055524

申请日：2020-10-14

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  XU, Huilin ,  YU, Yuanning ,  SHENG, Hongsan ,  LU, Enoch Shiao-Kuang ,  RAO, Subramanya ,  MEHANNA, Omar ,  HE, Linhai ,  CHEN, Wanshi

IPC: H04W72/12 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive configuration information that indicates a transmission parameter associated with a random access response (RAR) type; transmit a random access message associated with the RAR type; use the transmission parameter to obtain a physical downlink control channel (PDCCH) communication that schedules a physical downlink shared channel (PDSCH) communication that includes a RAR in a medium access control protocol data unit of the PDSCH communication; and obtain or refraining from obtaining the PDSCH communication based at least in part on whether the PDCCH communication is successfully obtained using the transmission parameter. Numerous other aspects are provided.

公开(公告)号：WO2021072088A1

公开(公告)日：2021-04-15

申请号：PCT/US2020/054801

申请日：2020-10-08

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  ISLAM, Muhammad Nazmul ,  HE, Linhai

IPC: H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may group and selectively multiplex a plurality of random access channel responses (RARs) and radio resource control (RRC) messages in a message B (msgB) communication, together with supplementary scheduling information for other RARs to be mapped to a different msgB communication. The BS may transmit the msgB communication to one or more user equipments. Numerous other aspects are provided.

公开(公告)号：WO2021067623A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053839

申请日：2020-10-01

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  HE, Linhai ,  CHEN, Wanshi

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently signaling configurations of physical resources and transmission parameters to a user equipment (UE) for small data transmissions (for example, data transmissions in an inactive or idle state). A base station may broadcast or multicast downlink control information (DCI) in one or more control channels that schedules data transmissions in a set of data channels. The base station may then multicast one or more configurations in each of the data channels, and a UE may decode one of the data channels to determine a configuration for a small data transmission. Because the configurations may be transmitted in the data channels in addition to system information or paging information, a base station may have access to sufficient resources to provide suitable configurations to a UE for communications in an inactive or idle state.

公开(公告)号：WO2021037215A1

公开(公告)日：2021-03-04

申请号：PCT/CN2020/112163

申请日：2020-08-28

Applicant: QUALCOMM INCORPORATED ,  LEI, Jing ,  WEI, Chao ,  HOSSEINI, Seyedkianoush ,  CHEN, Wanshi ,  ANG, Peter Pui Lok ,  WANG, Renqiu ,  LI, Qiaoyu ,  ZHENG, Ruiming

Inventor： LEI, Jing ,  WEI, Chao ,  HOSSEINI, Seyedkianoush ,  CHEN, Wanshi ,  ANG, Peter Pui Lok ,  WANG, Renqiu ,  LI, Qiaoyu ,  ZHENG, Ruiming

IPC: H04L1/08

Abstract: A base station may configure a time and frequency resource grid for multi-slot transmissions by user equipments (UEs). A UE may obtain from the base station the configuration information and transmission parameters for a multi-slot transmission generate a payload for the transmission of uplink data and communication on the configured time and frequency grid, segment the payload into one or multiple transport blocks (TBs), and map them to multiple consecutive and non-consecutive slots or min-slots. The UE may measure reference signal received power (RSRP), repeat the set of TBs, and concatenate the repeated TBs into a transport block group (TBG). The UE may insert a header within each TB, which may carry the transmission parameters and resource mapping information for the TBG. The UE may scramble the TBG by a UE-specific multiple access signature. The UE may retransmit a subset of the TBG based on hybrid automatic repeat request (HARQ) feedback from the base station.

公开(公告)号：WO2021034609A1

公开(公告)日：2021-02-25

申请号：PCT/US2020/046176

申请日：2020-08-13

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Wei ,  LEI, Jing ,  FAKOORIAN, Seyed Ali Akbar ,  HOSSEINI, Seyedkianoush ,  CHEN, Wanshi

IPC: H04W72/04

Abstract: According to some examples, a base station may allocate uplink and/or downlink resources (e.g., in the time domain, frequency domain, spatial domain) to user equipment (UEs), or groups of UEs, that may be subsequently reallocated. For example, a base station may determine a reallocation of uplink resources, and may issue a preemption indication (e.g., a cancelation indication) that may correspond to at least a portion of a random access resource. UEs may be configured to monitor for preemption indications and, based on received preemption indications, UEs may determine whether or not to proceed with transmission of a random access message using a random access resource that at least partially overlaps with resources indicated by the preemption indication. For example, a UE may transmit, or preempt transmission of, a random access message based on a preemption configuration of the UE (e.g., configured rules for UE preemption of random access resources).