公开(公告)号：US11601932B2

公开(公告)日：2023-03-07

申请号：US16938130

申请日：2020-07-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lixia Xue ,  Lei Guan ,  Qiang Li

IPC: H04W72/04 ,  H04W72/044 ,  H04L5/00

Abstract: Embodiments of the present invention provide information sending and receiving methods and devices. The information sending method includes: determining, by a base station, a downlink subframe that is used to send first information to user equipment UE; and sending, by the base station, the first information to the UE by using the downlink subframe, where the downlink subframe is a first subframe, a second subframe, or a third subframe, where the first subframe includes at least two sub-physical resource block pairs, the second subframe includes at least two physical resource block pairs, and the third subframe includes at least one sub-physical resource block pair and at least one physical resource block pair. According to the embodiments of the present invention, an LTE communications system efficiently and flexibly supports various network architectures and various types of UEs.

公开(公告)号：US11464003B2

公开(公告)日：2022-10-04

申请号：US16997679

申请日：2020-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Cheng ,  Lixia Xue ,  Brian Classon

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L41/0853 ,  H04W4/06

Abstract: In a control information transmission method according to present disclosure, a user equipment acquires configuration information of an enhanced physical downlink control channel (EPDCCH) set. The user equipment determines, according to the configuration information and from the EPDCCH set, at least one EPDCCH set in which an EPDCCH needs to be monitored. The user equipment monitors an EPDCCH on a resource corresponding to the at least one EPDCCH set, to acquire control information sent by a base station.

公开(公告)号：US11343800B2

公开(公告)日：2022-05-24

申请号：US16456935

申请日：2019-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Zhang ,  Lixia Xue ,  Bingyu Qu ,  Junchao Li

IPC: H04W72/04

Abstract: Example control channel resource indication methods, user equipment, and network devices are described. One example method includes sending a preamble signal sequence by a user equipment. The user equipment receives higher layer signaling corresponding to the preamble signal sequence. The higher layer signaling is indicated by downlink control information carried in a common search space. A time-frequency resource detected by the user equipment when determining a control channel includes the common search space and user equipment-dedicated search space. The user equipment determines frequency domain resource location information of the user equipment-dedicated search space based on the higher layer signaling. The frequency domain resource location information includes a quantity of frequency domain resource units occupied by the user equipment-dedicated search space in frequency domain and a location of the frequency domain resource unit.

公开(公告)号：US11283660B2

公开(公告)日：2022-03-22

申请号：US16894011

申请日：2020-06-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lixia Xue ,  Xu Zhang ,  Yongxing Zhou

IPC: H04L27/26 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W88/02 ,  H04B7/0452

Abstract: The present disclosure relates to mobile communications methods for obtaining a reference signal in a wireless communications system. In one example method, a network device obtains a demodulation reference signal sequence corresponding to position offset information, maps the demodulation reference signal sequence to a resource element in a control channel resource set, and sends demodulation reference signal corresponding to the demodulation reference signal sequence.

公开(公告)号：US11265741B2

公开(公告)日：2022-03-01

申请号：US16581553

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Xueru Li ,  Lixia Xue

IPC: H04W24/04 ,  H04L1/00 ,  H04L1/16 ,  H04W24/06 ,  H04W24/10

Abstract: Embodiments of the present invention disclose a link re-establishment method and a device, and relate to the communications field: When detecting that a first downlink beam pair set is invalid, UE sends a first uplink signal to a base station at a moment n by using a first uplink beam pair set through a first uplink channel, where the first uplink signal is used to notify the base station that the first downlink beam pair set is invalid; and the UE detects, at a moment n+k, a first downlink signal sent by the base station by using a second downlink beam pair set through a first downlink channel.

公开(公告)号：US11218999B2

公开(公告)日：2022-01-04

申请号：US16811286

申请日：2020-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao Sun ,  Fan Yang ,  Lixia Xue ,  Jianguo Wang

IPC: H04W72/04 ,  H04B1/713 ,  H04L5/00

Abstract: Example methods and apparatus for sending an uplink control channel and receiving an uplink control channel are described. One example method for sending an uplink control channel includes determining a resource set to be used for an uplink control channel by a terminal device, where the uplink control channel carries uplink control information and a demodulation reference signal (DMRS). The resource set includes N resource subsets, each of the N resource subsets includes a plurality of consecutive symbols in time domain, and N is greater than or equal to 1. The terminal device determines, for each of the N resource subsets, a quantity of symbols used to carry the DMRS, where the quantity of symbols is one of at least two candidate symbol quantities. The terminal device sends the uplink control channel by using the resource set.

公开(公告)号：US11129087B2

公开(公告)日：2021-09-21

申请号：US16750938

申请日：2020-01-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixia Xue ,  Xu Zhang ,  Jianguo Wang ,  Yi Qin ,  Yongzhao Cao

IPC: H04W56/00 ,  H04W48/10 ,  H04J11/00 ,  H04W72/00 ,  H04L5/00 ,  H04L25/03 ,  H04W72/04 ,  H04N21/462 ,  H04B17/382

Abstract: A control information sending/receiving method and device are provided, to implement indicating a time-frequency location of a control channel to a terminal device in a 5G NR system or a future evolved LTE system. The method includes: receiving, by a terminal device, broadcast information; determining, from at least two predefined time-domain locations, a time-domain location of a broadcast channel carrying the broadcast information; determining a time-domain location of a control channel based on the time-domain location of the broadcast channel; and performing control channel detection in the determined time-domain location of the control channel.

公开(公告)号：US11122556B2

公开(公告)日：2021-09-14

申请号：US16672646

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Xu Zhang ,  Lixia Xue

IPC: H04W72/04 ,  H03M13/27 ,  H04L5/00 ,  H04W80/08

Abstract: The present disclosure relates to communication methods and communication apparatus. One example method includes determining a quantity and a position of control channel element (CCE) used by a control channel of user equipment, where each of the CCE corresponds to a plurality of resource element groups (REGs), the plurality of REGs form at least one REG bundle, and any REG bundle in the at least one REG bundle includes a plurality of resource blocks (RBs) that are consecutive or adjacent in at least one of time domain or frequency domain, and receiving, from a network device, the control channel by using the CCE.

公开(公告)号：US11115969B2

公开(公告)日：2021-09-07

申请号：US16537207

申请日：2019-08-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shulan Feng ,  Lixia Xue

IPC: H04W72/04 ,  H04B7/12

Abstract: The embodiment of the disclosure provides a downlink control information transmission method and apparatus, where the method includes: determining a first resource set based on M resource subsets included in target resources, wherein at least two of the M resource subsets do not overlap in frequency domain, and each resource subset comprises at least one control channel bearing resource unit, M is an integer, and M≥2; the first resource set comprises N control channel bearing resource units, at least two of the N control channel bearing resource units belong to different resource subsets, and at least two of the N control channel bearing resource units are inconsecutive in frequency domain, N≥2, wherein one control channel bearing resource unit includes a plurality of resource element groups (REGs); and receiving downlink control information on the first resource set.

公开(公告)号：US11089586B2

公开(公告)日：2021-08-10

申请号：US16793978

申请日：2020-02-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Guan ,  Lixia Xue ,  Yongxing Zhou ,  Qiang Li ,  Jingyuan Sun

IPC: H04W72/04 ,  H04L5/00 ,  H04L12/24 ,  H04L12/751 ,  H04W48/12 ,  H04W88/02

Abstract: The present disclosure relates to detecting methods, transmitting methods, and apparatus for a common control channel. One example detecting method includes determining a candidate resource set within downlink resources of a current cell. The candidate resource set can include at least one candidate resource carrying a common control channel of the current cell. A detection is performed on the at least one candidate resource in the candidate resource set, so as to acquire the common control channel of the current cell.