公开(公告)号：US10939433B2

公开(公告)日：2021-03-02

申请号：US16523376

申请日：2019-07-26

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.

公开(公告)号：US10925027B2

公开(公告)日：2021-02-16

申请号：US16266774

申请日：2019-02-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Liu ,  Kelvin Kar Kin Au ,  Liqing Zhang ,  Jinfang Zhang

IPC: H04W56/00 ,  H04W52/02 ,  H04W76/28 ,  H04W64/00

Abstract: Embodiments of this application provide a processing method for tracking a user equipment (UE) in a low power mode, and a device. The method includes: obtaining transmission configuration information between the UE and a network device, where the transmission configuration information indicates that an uplink tracking signal is to be sent according to a discontinuous transmission mode, and the transmission configuration information includes a transmission cycle. When the UE enters a low power mode, sending, an uplink tracking signal to the network device based on the transmission configuration information; and receiving timing advance (TA) adjustment information returned by the network device, where the TA adjustment information is obtained by the network device through detection of the uplink tracking signal.

公开(公告)号：US20210044405A1

公开(公告)日：2021-02-11

申请号：US17080549

申请日：2020-10-26

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04L27/26

Abstract: Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.

公开(公告)号：US10911200B2

公开(公告)日：2021-02-02

申请号：US16165285

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：US10903963B2

公开(公告)日：2021-01-26

申请号：US16266947

申请日：2019-02-04

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04W72/04 ,  H04L5/22

Abstract: System and method embodiments are disclosed to provide mechanisms wireless communications. A method comprises transmitting, by a network device to a non-long term evolution (LTE) user equipment (UE), a bandwidth partitioning information describing a non-LTE bandwidth partition of a system bandwidth. The system bandwidth comprises an LTE bandwidth partition coexisting with the non-LTE bandwidth partition in the system bandwidth, and the LTE bandwidth partition is within the non-LTE bandwidth partition or the LTE bandwidth partition is adjacent to the non-LTE bandwidth partition.

公开(公告)号：US10736090B2

公开(公告)日：2020-08-04

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：US20200119774A1

公开(公告)日：2020-04-16

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 ,  H04W24/08 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0413

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：US20200068497A1

公开(公告)日：2020-02-27

申请号：US16662357

申请日：2019-10-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhengwei Gong ,  Amine Maaref ,  Kelvin Kar Kin Au ,  Mohammadhadi Baligh ,  Weimin Xiao

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/32

Abstract: A method for power control for uplink transmission is provided. In an embodiment, a method in a user equipment (UE) for reference signal (RS) relationship specific uplink (UL) transmission power control includes transmitting, by the UE, a first UL signal according to a first power control set including at least one of a first target power, a second target power, a DL reference signal (RS) for pathloss estimation, a pathloss compensation factor, and a transmit power command (TPC). The first power control set is determined according to a first RS relationship between one first RS and a first UL signal.

公开(公告)号：US10433283B2

公开(公告)日：2019-10-01

申请号：US15006772

申请日：2016-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Kelvin Kar Kin Au ,  Liqing Zhang

IPC: H04W4/00 ,  H04W72/04 ,  H04L27/26

Abstract: Systems and apparatus for assigning sub-bands to numerologies are provided. A system bandwidth is divided into bandwidth portions, and the bandwidth portions are used as the unit of assignment for assigning sub-bands to numerologies. Systems and methods are also provided for allocating resource blocks over a bandwidth such as a sub-band. The available bandwidth is divided into sub-band portions, and the bandwidth portions are used as the unit of allocation for allocating resource blocks to user equipment.

公开(公告)号：US10412730B2

公开(公告)日：2019-09-10

申请号：US15452514

申请日：2017-03-07

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W4/00 ,  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.