公开(公告)号：US20180063865A1

公开(公告)日：2018-03-01

申请号：US15640404

申请日：2017-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Peng Zhang ,  Jiayin Zhang

IPC: H04W72/14 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04W72/14 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/0091 ,  H04W72/044 ,  H04W72/1242 ,  H04W72/1273 ,  H04W72/1289 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: A system and method for multiplexing traffic. A wireless device such as a base station may schedule a first transmission of first data (e.g., latency tolerant data) to a first UE on first resources, and transmit second data (e.g., low latency data) to a second UE on a portion of the first resources. The base station may signal a first indicator e.g. via Radio Resource Control (RRC) signaling to the first UE indicating that the first UE is to monitor for a second indicator that itself indicates the presence of second data on the first resources. The base station may then signal a second indicator to the first UE to indicate the presence of the second data on the first resources. By using the first indicator to initiate the monitoring of the second indicator, the first UE can reduce the amount of monitoring it needs to perform if there is no second data traffic in a certain period of time or in a certain frequency band.

公开(公告)号：US11683828B2

公开(公告)日：2023-06-20

申请号：US17092758

申请日：2020-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Amine Maaref ,  Jiayin Zhang

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/23 ,  H04W72/51 ,  H04W72/56 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/542 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/23 ,  H04W72/51 ,  H04L5/0007 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/56

Abstract: Systems and methods are provided for transmitting and receiving pre-emption indications. The pre-emption indication is transmitted every K symbols or slots, on a group-common physical downlink control channel. The pre-emption indication is in respect of a group of K symbols or slots preceding a symbol or slot containing the group-common pre-emption indication. The group-common pre-emption indication indicates, for the group of K symbols or slots, which resources are pre-empted. The base station schedules resources for first downlink traffic, and transmits the scheduled first downlink traffic subject to pre-emption, and transmits second downlink traffic by pre-empting resources for the first downlink traffic. On the UE side, the UE receives the pre-emption indication. The UE receives its scheduled traffic taking into account the pre-emption indication.

公开(公告)号：US11115257B2

公开(公告)日：2021-09-07

申请号：US15919867

申请日：2018-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Jiayin Zhang

IPC: H04L27/26 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W28/10

Abstract: Aspects of the disclosure pertain to systems and methods for multiplexing of low latency and latency tolerant communications. When low latency traffic pre-empts latency tolerant traffic in a first interval, the pre-empted low latency traffic can be transmitted in a subsequent interval. There are multiple designs disclosed for notifying UE that are affected by the pre-emption events. The various designs include implicit or explicit notification that can be semi-static or dynamic. Examples of the notification include notification of that a pre-emption event occurs, notification of the location of the pre-emption event, notification of whether a supplementary transmission will occur and notification of the location of the supplementary transmission.

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：US20210058937A1

公开(公告)日：2021-02-25

申请号：US17092758

申请日：2020-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Amine Maaref ,  Jiayin Zhang

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

Abstract: Systems and methods are provided for transmitting and receiving pre-emption indications. The pre-emption indication is transmitted every K symbols or slots, on a group-common physical downlink control channel. The pre-emption indication is in respect of a group of K symbols or slots preceding a symbol or slot containing the group-common pre-emption indication. The group-common pre-emption indication indicates, for the group of K symbols or slots, which resources are pre-empted. The base station schedules resources for first downlink traffic, and transmits the scheduled first downlink traffic subject to pre-emption, and transmits second downlink traffic by pre-empting resources for the first downlink traffic. On the UE side, the UE receives the pre-emption indication. The UE receives its scheduled traffic taking into account the pre-emption indication.

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：US10404533B2

公开(公告)日：2019-09-03

申请号：US16107181

申请日：2018-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Yu Cao ,  Jianglei Ma ,  Hua Xu ,  Amine Maaref ,  Liqing Zhang ,  Kelvin Kar Kin Au

IPC: H04L12/24 ,  H04W72/04 ,  H04W88/08

Abstract: Systems and methods are provided that facilitate multiple switching points within a slot. A slot format indication is conveyed to a user equipment which indicates which symbols within a slot are uplink, downlink or unknown. Some formats feature half-slot switching meaning that a switch from uplink to downlink transmission takes place twice within a slot. Switching on a more frequent basis can deliver improved latency.

公开(公告)号：US20190052432A1

公开(公告)日：2019-02-14

申请号：US15925452

申请日：2018-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Amine Maaref ,  Yongxia Lyu

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04L12/26

Abstract: A system and method for multiplexing traffic. A wireless device such as a user equipment (UE) may receive a first signal over first resources assigned to carry a first downlink transmission from a base station, and receive a first downlink control indication (DCI) message from the base station. The first DCI message may include a pre-emption region (PR) indication and a PR bitmap, and the PR indication may indicate a location of a time-frequency region. The PR bitmap may include bits associated with different portions of the time-frequency region, and each of the bits in the PR bitmap may indicate whether a preemptive downlink transmission is present in the corresponding portion of the time-frequency region.

公开(公告)号：US20180035459A1

公开(公告)日：2018-02-01

申请号：US15697222

申请日：2017-09-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Kelvin Kar Kin Au ,  Mohammadhadi Baligh ,  Peng Zhang

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

CPC classification number: H04W74/04 ,  H04L1/16 ,  H04L5/0053 ,  H04L5/0078 ,  H04L5/0096 ,  H04W52/146 ,  H04W52/50 ,  H04W72/082 ,  H04W72/1289 ,  H04W74/0808

Abstract: Aspects of this disclosure mitigate interference in a time division duplexed frame by altering a transmission parameter of grant-based uplink transmissions upon determining that a portion of the grant-based transmission will coincide with the retransmission of a detected grant-free uplink transmission. In particular, a base station may determine that a grant-free retransmission is to occur over resources scheduled to carry a grant-based transmission, and then send a signal instructing a UE to delay, or puncture a portion, of the grant-based transmission. This may mitigate interference between the grant-based transmission and the grant-free transmission.

公开(公告)号：US11711171B2

公开(公告)日：2023-07-25

申请号：US16231006

申请日：2018-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang ,  Toufiqul Islam ,  Zhenfei Tang ,  Amine Maaref ,  Jianglei Ma

IPC: H04L1/1812 ,  H04L5/00 ,  H04W72/23 ,  H04W80/02

CPC classification number: H04L1/1819 ,  H04L5/0055 ,  H04W72/23 ,  H04W80/02

Abstract: A method includes receiving a first assignment for a first transmission with a first hybrid automatic repeat request (HARQ) process identifier (process ID) in a first network resource, receiving a second assignment for a second transmission with a second HARQ process ID in a second network resource, wherein the first network resource and the second network resource differ in a domain other than a time domain, detecting an indication indicating that the first HARQ process ID and the second HARQ process ID map to a same transmission block (TB), and communicating with an access node, a transmission associated with at least one of the first HARQ process ID or the second HARQ process ID.