公开(公告)号：US11019570B2

公开(公告)日：2021-05-25

申请号：US16152693

申请日：2018-10-05

Applicant: Huawei Technologies Co., Ltd.

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

IPC: G08C17/00 ,  H04W52/02 ,  H04W88/02

Abstract: A method for operating a user equipment (UE) includes determining a first operating state in accordance with a first message traffic generated by a non-session based application executing in the UE, setting a state machine in the UE to the first operating state, and transmitting a first message in accordance with the state machine.

公开(公告)号：US11013024B2

公开(公告)日：2021-05-18

申请号：US15965031

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：US20210144737A1

公开(公告)日：2021-05-13

申请号：US17156090

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Cao ,  Liqing Zhang ,  Hua Xu ,  Jianglei Ma ,  Toufiqul Islam ,  Amine Maaref

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: A user equipment (UE) may determine that a transmission resource includes a first orthogonal frequency-division multiplexing (OFDM) symbol that is configured as a downlink symbol or as flexible, where the transmission resource is allocated for uplink (UL) transmissions during a time duration, and includes K transmission occasions (TOs). The UE may transmit a first UL transmission in the transmission resource omitting the first OFDM symbol. The first UL transmission includes K repetitions to be transmitted in the respective K TOs, and the K repetitions includes an initial transmission and at least one retransmission of the initial transmission.

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：US10892795B2

公开(公告)日：2021-01-12

申请号：US16522395

申请日：2019-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Wang ,  Yan Chen ,  Yiqun Wu ,  Liqing Zhang

IPC: H04B1/7143 ,  H04L5/00

Abstract: This application provides a transmission method that improves performance of detecting a terminal device by a network device. The method includes may include determining, by a network device, frequency hopping sequences of N terminal devices grouped into a plurality of groups in each of L adjacent slots, where any two terminal devices in each group of terminal devices use a same frequency resource, any two groups of terminal devices in each slot use different frequency resources, and each group of terminal devices in each slot includes a maximum of K terminal devices, pilot signals used by each group of terminal devices are elements in a set that includes K different pilot signals, and pilot signals used by any two terminal devices in each group in each slot are different. The method may also include sending, by the network device, first indication information to a first terminal device in the N terminal devices, where the first indication information determines a frequency hopping sequence of the first terminal device and a pilot signal used by the first terminal device in each slot.

公开(公告)号：US20210007074A1

公开(公告)日：2021-01-07

申请号：US17029573

申请日：2020-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Yiqun Wu ,  Yan Chen ,  Yi Wang

IPC: H04W56/00 ,  H04L1/08 ,  H04L1/18 ,  H04W88/06 ,  H04W92/04

Abstract: In accordance to embodiments, methods, devices, and systems for determining initial transmissions in grant-free transmissions are disclosed. A UE receives a resource configuration for grant-free (GF) transmissions. The resource configuration comprises a periodicity parameter (P), a repetition number (K), and a sequence of redundancy version (RV) numbers corresponding to one or more RV types. The periodicity parameter defines a period having K transmission occasions (TOs), and each of the KTOs is associated with one RV number in the sequence of RV numbers. The UE performs an initial GF transmission of data in a TO of the K TOs in the period defined by the periodicity parameter. The TO is associated with an RV number corresponding to RV0.