公开(公告)号：US10925046B2

公开(公告)日：2021-02-16

申请号：US15860334

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W16/14 ,  H04W74/00 ,  H04W88/06

Abstract: A New Radio (NR) control signal that indicates one or more Long Term Evolution (LTE) network parameters may be transmitted to NR UEs to enable the NR UEs to identify which resources carry LTE signal(s). The NR UEs may then receive one or more NR downlink signals over remaining resources in a set of resources without processing those resources that carry LTE signal(s). The NR downlink signals may have a zero power level, or otherwise be blanked, over resources that carry the LTE signal(s).

公开(公告)号：US10903960B2

公开(公告)日：2021-01-26

申请号：US16165450

申请日：2018-10-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kelvin Kar Kin Au ,  Liqing Zhang ,  Mohammadhadi Baligh ,  Jianglei Ma ,  Wen Tong

IPC: H04L5/00 ,  H04W74/00

Abstract: A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.

公开(公告)号：US10887899B2

公开(公告)日：2021-01-05

申请号：US15964555

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kelvin Kar Kin Au ,  Hosein Nikopour ,  Petar Djukic ,  Zhihang Yi ,  Alireza Bayesteh ,  Jianglei Ma ,  Mohammadhadi Baligh ,  Liqing Zhang

IPC: H04W72/12 ,  H04W72/02 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H04L1/18 ,  H04W74/08

Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.

公开(公告)号：US10855340B2

公开(公告)日：2020-12-01

申请号：US16710599

申请日：2019-12-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Jianglei Ma ,  Kelvin Kar Kin Au ,  Nimal Gamini Senarath

IPC: H04B7/024 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04W24/08

Abstract: Embodiments are provided for uplink measurement based mechanism and control using user equipment (UE) centric sounding signals. The mechanism provides an alternative to DL-measurement dominated system control. Based on UL-measurements at TPs, the network obtains knowledge of users' channel and timing information, traffic, and interference, and is thus able to perform better control, including TP and UE clustering and optimization, and power control and link adaptation. In an embodiment method, a TP receives one-to-one mapping information indicating a plurality of UE IDs and a plurality of sounding channels assigned to the corresponding UE IDs. When the TP detects a sounding reference signal (SRS) from a UE, the TP is able to identify the UE using the detected SRS and the one-to-one mapping information. The TP then obtains measurement information for the identified UE, enabling better control and communications for uplink and downlink transmissions between multiple TPs and the UE.

公开(公告)号：US10772101B2

公开(公告)日：2020-09-08

申请号：US15954208

申请日：2018-04-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Rong ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong ,  Kelvin Kar Kin Au

IPC: H04W72/00 ,  H04W72/04 ,  H04W28/02 ,  H04W76/11 ,  H04W40/20 ,  H04L12/927

Abstract: Systems and methods for UE state machine to support multiple services or air interfaces are described. The UE may have one configuration of the state machine for multiple services or air interfaces. The UE may have multiple state machines for different services or air interfaces that work independently. The UE may have multiple state machines for different services or air interfaces that work collaboratively. The UE may have a state machine that uses a state machine configuration selected out of a plurality of state machine configurations according to the services used. The configuration of this state machine may be adapted to services. At initialization, the configuration of this state machine may be default or be determined according to the services the UE may use. During operation, the configuration of this state machine may change according to the change in services for the UE.

公开(公告)号：US20200260453A1

公开(公告)日：2020-08-13

申请号：US16864276

申请日：2020-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qinghai Zeng ,  Kelvin Kar Kin Au ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04W72/04 ,  H04W76/27 ,  H04W52/02 ,  H04W72/14 ,  H04W72/12 ,  H04W40/00 ,  H04L12/26 ,  H04L1/00 ,  H04J11/00

Abstract: A notification regarding a transition of a User Equipment (UE) from a standby operating mode to an active operating mode is exchanged between a UE and a network element in a communication network. The notification could be an uplink notification that is transmitted by the UE to the network element in response to an operating mode transition criterion for the UE being met at the UE, or a downlink notification that is transmitted by the network element to the UE in response to an operating mode transition criterion for the UE being met at the network element. The UE transitions from the standby operating mode to the active operating mode in response to the operating mode transition criterion being satisfied. The transmitter of the notification, which could be the UE or the network element, could also perform grant-free transmission of data without first receiving a response to the notification.

公开(公告)号：US10728072B2

公开(公告)日：2020-07-28

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：US20200229017A1

公开(公告)日：2020-07-16

申请号：US16833198

申请日：2020-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Liu ,  Pu Yuan ,  Keyvan Zarifi ,  Jun Luo ,  Kelvin Kar Kin Au

IPC: H04W24/10 ,  H04L5/00 ,  H04W56/00 ,  H04W24/02 ,  H04W48/16 ,  H04W76/27 ,  H04W72/04 ,  H04W48/14

Abstract: This application discloses a communications method and apparatus, the method including sending a synchronization/broadcast signal block of a serving cell or a camping cell, sending at least one piece of cell measurement configuration information to a terminal device, where the at least one piece of cell measurement configuration information comprises N pieces of information indicating actual sending of a synchronization/broadcast signal block, and the N pieces of information indicating actual sending of a synchronization/broadcast signal block are used to indicate information about actually sent synchronization/broadcast signal blocks of M cells, where 1≤N≤M, where M is a quantity of measurement cells of the terminal device, and where both N and M are positive integers, and sending synchronization/broadcast signal blocks of the M measurement cells.

公开(公告)号：US10333678B2

公开(公告)日：2019-06-25

申请号：US15160707

申请日：2016-05-20

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04W72/12 ,  H04L5/14

Abstract: A time division duplex (TDD) scheduling interval communicating transmissions in a first direction may include one or more regions for communicating in a second direction, where the first direction is a transmit direction and the second direction is a receive direction, or vice versa. A radio frame may include TDD scheduling intervals with such regions and/or TDD scheduling intervals without such regions for wireless communication, and these TDD scheduling intervals may further be configured in accordance with different frame structure configurations, such as different scheduling interval lengths, subcarrier spacings or symbol durations.

公开(公告)号：US10271331B2

公开(公告)日：2019-04-23

申请号：US16108589

申请日：2018-08-22

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04W48/00 ,  H04L1/18 ,  H04L5/14 ,  H04W28/06 ,  H04W72/12

Abstract: In one embodiment, a method for adaptive transmission time intervals (TTIs) includes transmitting, by a communications controller to a user equipment (UE), a segment of a first TDD TTI configuration of a first TDD interval and a second TDD TTI configuration of the first TDD interval, where the first TDD TTI configuration has a first pattern, where the second TDD TTI configuration has a second pattern, where the first pattern is different than the second pattern, where the first TDD TTI configuration has a first uplink TTI segment and a first downlink TTI segment. The method also includes transmitting a first plurality of data on a first TTI in the first downlink TTI segment of the first TDD TTI configurations of the first TDD interval and receiving a second plurality of data on the first uplink segment of the first TDD TTI configuration of the first TDD interval.