公开(公告)号：US20190386862A1

公开(公告)日：2019-12-19

申请号：US16229813

申请日：2018-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Zhenfei Tang

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

Abstract: The time-frequency resources of a particular numerology may be used to transmit OFDM symbols that have a cyclic prefix that is longer than the cyclic prefix of other OFDM symbols. This may complicate alignment across different numerologies. Time-frequency resource partitions are disclosed herein that may assist in symbol alignment and/or subframe alignment across the different numerologies.

公开(公告)号：US20190334679A1

公开(公告)日：2019-10-31

申请号：US16503731

申请日：2019-07-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhihang Yi ,  Jianglei Ma ,  Liqing Zhang ,  Kelvin Kar Kin Au

IPC: H04L5/00

Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.

公开(公告)号：US10390333B2

公开(公告)日：2019-08-20

申请号：US13886112

申请日：2013-05-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Petar Djukic ,  Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

IPC: H04W72/04 ,  H04L1/00

Abstract: A method embodiment includes receiving, by a first network device, a first transmission comprising an explicit first source identification (ID). The first source ID is added to a list of active source IDs. The first network device receives a second transmission. The second transmission does not include an explicit second source ID. The first network device determines the second source ID by using the list of active source IDs.

公开(公告)号：US20190253987A1

公开(公告)日：2019-08-15

申请号：US16391934

申请日：2019-04-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

IPC: H04W52/38 ,  H04W56/00 ,  H04W52/24 ,  H04W52/50

CPC classification number: H04W52/38 ,  H04W52/242 ,  H04W52/50 ,  H04W56/001 ,  H04W56/0015

Abstract: Systems and methods are provided that allow a transmit receive point (TRP) that is a member of a group of TRPs to convey a characteristic of the group through the transmission of a synchronization sequence. A transmit receive point in a first group of TRPs transmits with a first synchronization sequence. A TRP in a second group of TRPs transmits with a second synchronization sequence, the first and second synchronization sequences being different from each other. The TRPs of the first group share a common first characteristic and the TRPs of the second group share a common second characteristic. The transmission of the first synchronization sequence conveys the first common characteristic, and the transmission of the second synchronization sequence conveys the second common characteristic.

公开(公告)号：US10361825B2

公开(公告)日：2019-07-23

申请号：US16143104

申请日：2018-09-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Jing Qiu

IPC: H04L5/00 ,  H04L27/26 ,  H04L5/14

Abstract: A method for wireless communications includes receiving signaling for indicating a time division duplexing (TDD) frame structure configuration from a base station. The TDD frame structure configuration corresponds to a time duration of 0.1 ms, 0.125 ms, 0.2 ms, 0.25 ms, 0.5 ms, or 1.0 ms, the TDD frame structure configuration including two switching points between downlink transmissions and uplink transmissions. The method further includes communicating downlink and uplink transmissions according to the TDD frame structure configuration. The TDD frame structure configuration may further include a guard period for separating the first downlink transmission and the first uplink transmission in the time domain.

公开(公告)号：US20190140769A1

公开(公告)日：2019-05-09

申请号：US16241793

申请日：2019-01-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Rong ,  Kelvin Kar Kin Au

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

Abstract: It is possible to reduce the processing intensity of blind detection by configuring user equipments (UEs) to search for fewer than all possible DCI formats defined for a physical downlink control channel (PDCCH), as this reduces the number of searches performed by the corresponding UE during blind detection. The UE may select the subset of DCI formats to search for during blind detection based on various criteria, such as an air interface configuration assigned to the UE, a UE group to which the UE belongs, a transmission mode used by the UE, a re-transmission scheme assigned to the UE, a characteristic (e.g., size, location) of the UE's search space, or a combination thereof.

公开(公告)号：US20190090236A1

公开(公告)日：2019-03-21

申请号：US16191999

申请日：2018-11-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Zhihang Yi ,  Hosein Nikopour

IPC: H04W72/04 ,  H04W28/02 ,  H04W88/08

Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.

公开(公告)号：US10193656B2

公开(公告)日：2019-01-29

申请号：US15077657

申请日：2016-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Rong ,  Kelvin Kar Kin Au

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

Abstract: It is possible to reduce the processing intensity of blind detection by configuring user equipments (UEs) to search for fewer than all possible DCI formats defined for a physical downlink control channel (PDCCH), as this reduces the number of searches performed by the corresponding UE during blind detection. The UE may select the subset of DCI formats to search for during blind detection based on various criteria, such as an air interface configuration assigned to the UE, a UE group to which the UE belongs, a transmission mode used by the UE, a re-transmission scheme assigned to the UE, a characteristic (e.g., size, location) of the UE's search space, or a combination thereof.

公开(公告)号：US10136433B2

公开(公告)日：2018-11-20

申请号：US15962001

申请日：2018-04-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Zhihang Yi ,  Hosein Nikopour

IPC: H04W72/04 ,  H04W28/02 ,  H04W88/08

Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.

公开(公告)号：US20180332514A1

公开(公告)日：2018-11-15

申请号：US15594506

申请日：2017-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Amine Maaref ,  Kelvin Kar Kin Au ,  Jianglei Ma

IPC: H04W36/04 ,  H04W28/02 ,  H04W48/10 ,  H04W8/00 ,  H04W72/00

CPC classification number: H04W36/04 ,  H04B1/38 ,  H04W8/005 ,  H04W28/0215 ,  H04W48/10 ,  H04W72/005

Abstract: Provisioning and communicating physical signals and channels in NR networks having a first subset of transmit and receive points that use a first cell ID and a second subset of transmit and receive points that use a second cell ID. Operations include transmitting from, and receiving from, a first transmit and receive point a first signal or channel wherein the first signal or channel is based on a first user equipment (UE) specific parameter assigned via the first subset of transmit and receive points and transmitting from, and receiving from, the first transmit and receive point the plurality of transmit and receive points a second signal or channel wherein the second signal or channel is based on a second UE specific parameter assigned via the second subset of transmit and receive points. A transmit and receive point and a UE for implementing the operations are also disclosed.