公开(公告)号：US20180249464A1

公开(公告)日：2018-08-30

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

CPC classification number: H04W72/0446 ,  H04W28/0205 ,  H04W72/042 ,  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：US20180152907A1

公开(公告)日：2018-05-31

申请号：US15823471

申请日：2017-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Yalin Liu ,  Qinghai Zeng ,  Xiaoying Xu ,  Jianglei Ma

IPC: H04W56/00 ,  H04B7/04 ,  H04W74/08

CPC classification number: H04W56/0045 ,  H04B7/0421 ,  H04W56/0005 ,  H04W74/006 ,  H04W74/0833

Abstract: A method and apparatus for timing advance (TA) synchronization for uplink (UL) data transmissions are provided. A base station transmits a TA instruction to a UE. The TA instruction indicates one of at least two TA options. The first TA option indicates direct initial grant-free (GF) uplink (UL) data transmissions. The second TA option indicates indirect initial GF UL data transmissions with the UE initiating TA reference signaling for updating a TA parameter of the UE. The UE performs an initial GF UL data transmission to the base station based on the TA instruction.

公开(公告)号：US20170181165A1

公开(公告)日：2017-06-22

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: H04W72/04 ,  H04L1/18 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04L1/1864 ,  H04L5/14 ,  H04W28/06 ,  H04W48/00 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/12 ,  H05K999/99

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：US20160353436A1

公开(公告)日：2016-12-01

申请号：US15078621

申请日：2016-03-23

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04L5/0007 ,  H04L5/0042 ,  H04L5/0055 ,  H04L5/1469 ,  H04L27/2602

Abstract: A time division duplex (TDD) transmission time interval (TTI) 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 TTIs with such regions and/or TDD TTIs without such regions for wireless communication, and these TDD TTIs may further be configured in accordance with different frame structure configurations, such as different TTI lengths, subcarrier spacings or symbol durations.

Abstract translation: 在第一方向上传送传输的时分双工（TDD）传输时间间隔（TTI）可以包括用于在第二方向上进行通信的一个或多个区域，其中第一方向是发送方向，第二方向是接收方向，或者 反之亦然。 无线电帧可以包括具有这样的区域的TDD TTI和/或没有用于无线通信的这样的区域的TDD TTI，并且这些TDD TTI还可以根据不同的帧结构配置来配置，诸如不同的TTI长度，子载波间隔或符号持续时间。

公开(公告)号：US20240388383A1

公开(公告)日：2024-11-21

申请号：US18785872

申请日：2024-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Tang ,  Liqing Zhang ,  Jianglei Ma ,  Yiqun Ge ,  Peiying Zhu ,  Wen Tong

IPC: H04L1/1812 ,  H04L1/1829

Abstract: Current online training procedures for artificial intelligence/machine learning (AI/ML) models for wireless communication generally suffer from high communication overhead and/or significant delays in training, particularly when training data is exchanged over an unreliable/hostile communication channel. An example method includes communicating, in accordance with a first communication mode, data or control information with a second device in the wireless communication network. The first communication mode is one of a plurality of communication modes comprising at least the first communication mode and a second communication mode, the second communication mode differing from the first communication mode in terms of at least one of a quantization level used to quantize values of variables in the data or control information, or a Hybrid Automatic Repeat reQuest (HARQ) feedback and retransmission mode for selective retransmission of one or more portions of the data or control information.

公开(公告)号：US20240284484A1

公开(公告)日：2024-08-22

申请号：US18650944

申请日：2024-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Hao Tang ,  Jianglei Ma

IPC: H04W72/25 ,  H04L1/00 ,  H04W72/044 ,  H04W72/232

CPC classification number: H04W72/25 ,  H04L1/0061 ,  H04W72/044 ,  H04W72/232

Abstract: In some wireless communication systems, user equipments (UEs) wirelessly communicate with a radio access network (RAN) via one or more transmit-and-receive points (TRPs). A user of a UE is provided with a mobile connection by a network operator. Different network operators may share the same RAN infrastructure. For example, two UEs may be in a same shared RAN and communicate with a same TRP. Sometimes a same UE may transmit/receive traffic associated with multiple different services, however, the traffic for each service is independently scheduled. Some embodiments herein are directed to reductions in overhead for scenarios in which a same UE transmits/receives traffic associated with multiple different services. Some embodiments relate to a new DCI format for scheduling traffic associated with one or multiple services. Some embodiments relate to implementing common paging resources for a UE to receive a paging message associated with one or multiple services.

公开(公告)号：US20240107360A1

公开(公告)日：2024-03-28

申请号：US18526018

申请日：2023-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Tang ,  Liqing Zhang ,  Jianglei Ma

IPC: H04W28/02

CPC classification number: H04W28/0252 ,  H04W28/0268

Abstract: A communication method, a communication device and a non-transitory computer readable memory are provided for generating a first message only within a radio access network (RAN) of the wireless communication network and for communicating the first message in a radio bearer (RB) with a second communication device within the RAN. The first message is associated with a first message type, a priority of the first message type being lower than a priority of a second message having second message type communicated via a core network (CN) of the wireless communication network. The first message can comprise control signaling or data.

公开(公告)号：US11864243B2

公开(公告)日：2024-01-02

申请号：US17678828

申请日：2022-02-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/1829

CPC classification number: H04W74/0841 ,  H04W72/04 ,  H04L1/1861

Abstract: A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.

公开(公告)号：US11638300B2

公开(公告)日：2023-04-25

申请号：US16999976

申请日：2020-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Liqing Zhang

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/14 ,  H04W76/27 ,  H04W72/0446 ,  H04W72/0453

Abstract: Method and devices are provided for a channel access mechanism for accessing a network on a random access channel (RACH). Methods involve defining a listen-before-talk (LBT) category to be used as part of a contention based procedure and how a contention window that is part of the LBT can be dynamically adjusted.

公开(公告)号：US11438114B2

公开(公告)日：2022-09-06

申请号：US16932505

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04L5/06

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.