公开(公告)号：US20210399823A1

公开(公告)日：2021-12-23

申请号：US17359150

申请日：2021-06-25

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing LEI ,  Renqiu WANG ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Tingfang JI

IPC: H04J13/00 ,  H04J13/20 ,  H03M7/30 ,  H04J13/22 ,  H04J13/14 ,  H04L1/00 ,  H04L5/00 ,  H04J11/00

Abstract: Aspects of the present disclosure provide techniques for variable spreading factor codes for non-orthogonal multiple access (NOMA). In an exemplary method, a base station assigns, from a first codebook of N short code sequences of length K, a subset of the short code sequences to a number of user equipments (UEs); receives a signal including uplink data or control signals from two or more of the UEs, wherein a first uplink data or control signal is sent using a first subsequence of one of the assigned short code sequences, and a second uplink data or control signal is sent using a second subsequence of one of the assigned short code sequences or using one of the assigned short code sequences; and decodes each uplink data or control signal in the signal based on the assigned short code sequences and subsequences of the assigned the short code sequences.

公开(公告)号：US20210359832A1

公开(公告)日：2021-11-18

申请号：US17319001

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Wanshi CHEN

IPC: H04L5/16 ,  H04W72/12 ,  H04W72/04 ,  H04L1/00

Abstract: A scheduling entity receives, from a half-duplex frequency division duplex (HD-FDD) UE, an initial attach request on a first uplink carrier of a primary cell. It enters into an RRC connected state with the HD-FDD UE and determines an amount of data waiting for uplink in a buffer of the HD-FDD UE. It determines a target uplink carrier and a grant of time for the HD-FDD UE to upload the buffered data. It then transmits downlink control information (DCI) allocating the target uplink carrier for the determined time to the HD-FDD UE. The HD-FDD UE communicates with the scheduling entity via the first uplink carrier, receives the DCI, and switches from the first uplink carrier to the target uplink carrier. It then transmits, over the target uplink carrier, the buffered data to the scheduling entity for the determined time.

公开(公告)号：US20210352692A1

公开(公告)日：2021-11-11

申请号：US17308510

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Huilin XU ,  Hwan Joon KWON

IPC: H04W72/12 ,  H04W74/08 ,  H04W76/28 ,  H04L5/00 ,  H04W52/02

Abstract: A user equipment (UE) may initiate a Type-1 or Type-2 random access procedure from a power saving mode, generate a channel state information (CSI) report and a buffer status report, and selectively multiplex the CSI report and BSR with mobile originated (MO) data in a random-access message of the random-access procedure. The UE may further transmit a request to remain in the power saving mode after finishing the transmission of the MO data. The configuration of random access and CSI reporting procedure depends on the UE type or UE capability supported by the network.

公开(公告)号：US20210289534A1

公开(公告)日：2021-09-16

申请号：US17178602

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Hwan Joon KWON ,  Linhai HE ,  Huilin XU ,  Peter Pui Lok ANG ,  Wanshi CHEN ,  Xipeng ZHU ,  Liangchi HSU

IPC: H04W72/12 ,  H04L5/00

Abstract: Aspects described herein relate to configuring and indicating radio resource control (RRC) message types in wireless communications, to support new UE categories, new operation modes, new use cases, or a combination thereof. Configuration and indication methods that may support co-existence of new and legacy RRC message types and/or user equipment (UE) procedures for decoding new RRC message type are also described.

公开(公告)号：US20210243609A1

公开(公告)日：2021-08-05

申请号：US17161408

申请日：2021-01-28

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Huilin XU ,  Runxin WANG ,  Peter Pui Lok ANG ,  Wanshi CHEN

IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04B7/06

Abstract: Aspects of the present disclosure provide various devices, methods, and systems for dynamic spectrum sharing of a spectrum between different radio access technologies and multiple frequency division duplexing modes. Dynamic spectrum sharing (DSS) is a technology that allows wireless network operators to share a spectrum between different radio access technologies (RATs). DSS allows an operator to dynamically allocate some existing 4G spectrum to 5G use to deliver 5G services using a shared spectrum.

公开(公告)号：US20210195653A1

公开(公告)日：2021-06-24

申请号：US17124411

申请日：2020-12-16

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Huilin XU ,  Peter Pui Lok ANG ,  Wanshi CHEN

IPC: H04W74/08 ,  H04L1/18 ,  H04W72/04

Abstract: User equipments (UEs) with reduced capabilities may need a relaxed processing timeline relative to standard UEs. The relaxed processing timeline may provide UEs with reduced capabilities an appropriate amount of time (e.g., during a random access procedure) to decode messages from a base station (BS) and/or to prepare uplink messages. Aspects of the disclosure relate to a UE configured to transmit a message to a serving BS, the message including a request for timeline relaxation for transmission of a subsequent message, the message and the subsequent message being associated with a random access procedure. The UE may receive a response message associated with the random access procedure and indicating one or more timing offsets corresponding to the timeline relaxation. The UE may transmit the subsequent message to the serving BS based on the one or more timing offsets indicated by the serving BS. The subsequent message acknowledges the response message.

公开(公告)号：US20210195546A1

公开(公告)日：2021-06-24

申请号：US17127901

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Wanshi CHEN ,  Huilin XU ,  Peter Pui Lok ANG

IPC: H04W56/00 ,  H04W74/08 ,  H04W76/27 ,  H04W76/19 ,  H04W76/11 ,  H04W80/02 ,  H04W72/04

Abstract: A user equipment (UE) in a radio resource connection (RRC) inactive or idle state may initiate a random access procedure with a base station (BS) for initial access to a network, to resume an RRC connection, to re-establish an RRC connection, or to perform an early data transmission to a network. The BS may selectively include a timing advance (TA) medium access control (MAC) control element (CE) and an indication of a simplified timing advance command for the UE. The aspects herein may reduce the signaling overhead of the TA MAC CE. For example, the UE may enter an idle state or an inactive state. The UE may transmit a random access message to the BS with a request for timing advance simplification based, at least in part, on a TA value corresponding to the BS, wherein the TA value is applied to the transmission of the random access message.

公开(公告)号：US20210112600A1

公开(公告)日：2021-04-15

申请号：US16947493

申请日：2020-08-04

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W74/08 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a random access channel (RACH) occasion (RO) configuration that includes information related to ordered preamble resources. The UE may generate a preamble resource index according to various parameters selected based on the RO configuration information that relates to the ordered preamble resources. The UE may generate an uplink RACH message that includes a preamble based at least in part on the preamble resource index and a payload associated with a physical uplink shared channel (PUSCH) resource unit (PRU) mapped to the preamble resource index. After decoding the uplink RACH message, the base station may send a response message including scrambled downlink control information (e.g., based on a scrambling identifier or payload information associated with the uplink RACH message). Numerous other aspects are provided.

公开(公告)号：US20210022180A1

公开(公告)日：2021-01-21

申请号：US16929925

申请日：2020-07-15

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Kazuki TAKEDA ,  Seyedkianoush HOSSEINI ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W74/08 ,  H04W74/02 ,  H04W72/04 ,  H04L5/10 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, via a first cell, downlink control information for physical downlink control channel ordered contention-free random access, wherein the downlink control information indicates a timing advance group of a second cell and one or more parameters associated with a random access message to be transmitted by the UE via the second cell, wherein the first cell and the second cell belong to different timing advance groups. The UE may transmit the random access message via the second cell according to the one or more parameters and a timing advance value determined based at least in part on the timing advance group of the second cell. Numerous other aspects are provided.

公开(公告)号：US20210022058A1

公开(公告)日：2021-01-21

申请号：US16929965

申请日：2020-07-15

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Jing LEI

IPC: H04W36/08 ,  H04W74/08 ,  H04W56/00 ,  H04W74/02 ,  H04W76/27

Abstract: A connection establishment procedure such as a handover or re-establishment procedure including a 2-step random access procedure may be completed within a defined time period. The defined time period may be measured from a handover command or a determination that a user equipment (UE) has lost a connection to a base station. The defined period of time may depend on one or both of a synchronization signal block (SSB) to random access channel (RACH) association period or a SSB to RACH association pattern period. The UE may receive a handover command from a serving cell. The UE may perform a handover in response to receiving the handover command or a re-establishment procedure in response to detecting the lost connection within the defined time period. One or more base stations may reserve resources for the connection establishment procedure during the defined time period.