公开(公告)号：US11375549B2

公开(公告)日：2022-06-28

申请号：US16773949

申请日：2020-01-27

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Alexandros Manolakos ,  Linhai He ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Ying Wang ,  Seyong Park ,  Jay Kumar Sundararajan ,  Wanshi Chen

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method may be performed by a wireless device such as a user equipment (UE) and generally includes: receiving at least one downlink (DL) signal from one or more base stations or transmitting at least one uplink (UL) positioning reference signal (PRS), the received at least one DL signal comprising: at least one DL PRS, at least one synchronization signal block (SSB), at least one system information block (SIB), at least one other reference signal comprising a channel state information reference signal (CSI-RS), or a combination thereof, wherein at least one measurement is performed based, at least in part, on the received at least one DL signal or the transmitted at least one UL PRS; and performing at least one adjustment for random access based, at least in part, on the at least one measurement.

公开(公告)号：US11329773B2

公开(公告)日：2022-05-10

申请号：US16573842

申请日：2019-09-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Gabi Sarkis ,  Ying Wang ,  Joseph Binamira Soriaga ,  Jay Kumar Sundararajan ,  Tingfang Ji ,  Naga Bhushan

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

Abstract: Methods, systems, and devices for wireless communications are described that provide sequences of spreading codes and hopping patterns that may be used in non-orthogonal multiple access (NOMA) communications between a user equipment (UE) and a base station. A codebook of spreading codes and the associated hopping patterns may be systematically constructed by closed form formulas or look up table. The base station may receive multiple concurrent transmissions from multiple different UEs, and the sequences of spreading codes and hopping patterns, may be used to identify a particular UE of the multiple UEs.

公开(公告)号：US11089598B2

公开(公告)日：2021-08-10

申请号：US16546140

申请日：2019-08-20

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Seyong Park ,  Ying Wang ,  Naga Bhushan

IPC: H04W72/04 ,  H04L5/10 ,  H04L1/00 ,  H04W76/27 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described in which multiple access (MA) signatures may be used in non-orthogonal multiple access (NOMA) transmissions to provide differentiation between multiple concurrent NOMA transmission that use common time, frequency, and spatial resources. Systematic extension of the pool size of MA signatures can be obtained by the grouping of UE-specific spreading codes and the application of group-specific scrambling code, where the generation of scrambling code can depend at least on a cell ID and UE group ID. The MA signature may be based at least in part on a UE specific spreading code and a group level scrambling code. The UE-specific spreading code may be one of a set of codes associated with a particular scrambling code. The scrambling code may be one of a number of orthogonal or non-orthogonal scrambling codes that are associated with one or more UE parameters.

公开(公告)号：US11005595B2

公开(公告)日：2021-05-11

申请号：US16412237

申请日：2019-05-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Ying Wang

IPC: H04L1/00 ,  H03M13/11

Abstract: A technique for hybrid automatic repeat request (HARD) transmissions using low-density parity-check (LDPC) coding with self-decodable retransmissions is disclosed. Data is encoded using a low-density parity check code to obtain encoded data, where the encoded data includes core data and non-core data. The encoded data is then stored in a buffer for transmission. A plurality of redundancy versions of the encoded data is then transmitted, wherein all redundancy versions of encoded data include core data, and each of the transmitted redundancy versions of the encoded data includes at least a different subset of the core data. The core data may be reordered prior to obtaining at least one of the different subsets of core data. Each of the transmitted redundancy versions of the encoded data includes sufficient core data to permit self-decodability of the transmission at a receiver.

公开(公告)号：US20200260485A1

公开(公告)日：2020-08-13

申请号：US16778956

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park ,  Naga Bhushan ,  Ying Wang ,  Wanshi Chen ,  Joseph Binamira Soriaga

IPC: H04W74/08 ,  H04W72/14 ,  H04W24/08 ,  H04L5/00 ,  H04L1/18 ,  H04W80/02 ,  H04L5/10 ,  H04W76/27

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

公开(公告)号：US10728000B2

公开(公告)日：2020-07-28

申请号：US16238268

申请日：2019-01-02

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Renqiu Wang ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Naga Bhushan ,  Yi Huang ,  Ying Wang

IPC: H04L5/00 ,  H04L27/06 ,  H04L27/26 ,  H04W76/28 ,  H04W76/27 ,  H04J13/00 ,  H04J11/00

Abstract: Methods, systems, and devices for wireless communications are described that provide a number of groups of transmitters, each group of transmitters having at least one user equipment (UE), and each group of transmitters having an associated transmission opportunity (TXO) for transmission of a reference signal. A number of UEs may transmit transmissions to a base station according to non-orthogonal multiple access (NOMA) techniques in which two or more UEs concurrently transmit to the base station. Depending upon a number of UEs, a number of groups of transmitters, an overloading factor of NOMA transmissions, a system bandwidth, a time span of the reference signal TXO, or any combination thereof, a binary or non-binary orthogonal cover code (OCC) may be applied to transmitted reference signals, which the base station may use to identify reference signals from particular UEs.

公开(公告)号：US20200084778A1

公开(公告)日：2020-03-12

申请号：US16565167

申请日：2019-09-09

Applicant: QUALCOMM Incorporated

Inventor： Ying Wang ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Gabi Sarkis ,  Peter Pui Lok Ang ,  Jing Lei

IPC: H04W72/10 ,  H04L1/00 ,  H04W72/04 ,  H04B7/0452 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to determine a priority indicator for an upcoming transmission between the UE and a base station and transmit the priority indicator to the base station. The base station may receive the priority indicator, determine a network condition, and may transmit control information for a downlink transmission. The control information may include an indication of a set of modulation and coding schemes to select from a plurality of sets of modulation and coding schemes and an index value for an entry in the selected set of modulation and coding scheme, where the indication is based on the priority indicator and a network condition. The UE may identify a combination of a modulation order and a code rate for the downlink transmission based on the indication of modulation and coding scheme table and the index value.

公开(公告)号：US20200028623A1

公开(公告)日：2020-01-23

申请号：US16517652

申请日：2019-07-21

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Jing Lei ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Gabi Sarkis ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Ying Wang

IPC: H04L1/00 ,  H04L5/00 ,  H04L5/10 ,  H04W24/08 ,  H04W72/04 ,  H04W76/27 ,  H04J13/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A base station may assign a set of preamble blocks for autonomous uplink transmissions from a preamble block pool. A user equipment (UE) may identify indices for each of a set of indexed sequences to be transmitted over the set of preamble blocks. The UE may select or identify the indices by performing an encoding procedure on a set of parameters. The indices may be applied to the pool of indexed sequences, and the resulting set of sequences may be transmitted over the set of assigned preamble blocks. The base station may recognize composite sequences transmitted from UEs on respective sets of preamble blocks based on the set of sequences. Thus, the base station may identify a data transmission from the UE based on monitoring for and identifying the set of sequences transmitted on the preamble blocks.

公开(公告)号：US09503839B2

公开(公告)日：2016-11-22

申请号：US14286565

申请日：2014-05-23

Applicant: QUALCOMM Incorporated

Inventor： Jubin Jose ,  Ying Wang ,  Kai Shi ,  Xinzhou Wu ,  Junyi Li

IPC: H04W72/00 ,  H04W4/00 ,  H04W88/06 ,  H04W72/02 ,  H04W48/16 ,  H04W16/14

CPC classification number: H04W4/80 ,  H04W16/14 ,  H04W48/16 ,  H04W72/00 ,  H04W72/02 ,  H04W88/06

Abstract: Methods, systems, and devices are described for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum. In one embodiment, a multi-mode device may be operated outside of the DSRC spectrum using a first clock rate, and may then be switched to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum.

Abstract translation: 描述了用于检测专用短距离通信（DSRC）传输以确定是否使用DSRC频谱的至少一部分的方法，系统和设备。 在一个实施例中，多模式设备可以使用第一时钟速率在DSRC频谱之外操作，然后可以在DSRC频谱之外操作时切换到第二时钟速率，以使用DSRC频谱来检测DSRC传输。

公开(公告)号：US20140335884A1

公开(公告)日：2014-11-13

申请号：US13889089

申请日：2013-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Jubin Jose ,  Ying Wang ,  Junyi Li ,  Sundar Subramanian ,  Xinzhou Wu

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S5/00 ,  G01S5/0263 ,  G01S19/11 ,  G01S19/48 ,  H04L1/00 ,  H04W72/00 ,  H04W88/06

Abstract: Methods, systems, and devices are described for using location information to determine whether to use at least a portion of a dedicated short range communications (DSRC) spectrum. Current location information of a multi-mode device is determined. The multi-mode device is operating outside of the DSRC spectrum. The current location information is used to determine whether the multi-mode device is located outside of geographical region attributed to DSRC transmissions. Upon determining that the multi-mode device is located outside of the geographical region, at least a portion of the DSRC spectrum is used for transmissions by the multi-mode device.

Abstract translation: 描述了使用位置信息来确定是否使用专用短距离通信（DSRC）频谱的至少一部分的方法，系统和设备。 确定多模式设备的当前位置信息。 多模式设备在DSRC频谱之外运行。 当前位置信息用于确定多模式设备是否位于归因于DSRC传输的地理区域之外。 在确定多模式设备位于地理区域之外时，DSRC频谱的至少一部分被用于多模式设备的传输。