公开(公告)号：US11979242B2

公开(公告)日：2024-05-07

申请号：US18306563

申请日：2023-04-25

Applicant: ZTE CORPORATION

Inventor： Dan Yang ,  Ning Wei ,  Bo Sun ,  Nan Li ,  Zhiqiang Han

IPC: H04L1/1867 ,  H04L1/1812 ,  H04L5/00

CPC classification number: H04L1/188 ,  H04L1/1816 ,  H04L1/1896 ,  H04L5/0055 ,  H04L1/1874

Abstract: A transmission method includes creating an automatic repeat request process for a first packet; setting a lifetime for the automatic repeat request process; and sending the first packet; and when a preset retransmission condition in the lifetime of the automatic repeat request process is satisfied, retransmitting a second packet; where the preset retransmission condition includes that at least part of the time instants within the first predetermined time interval after an incorrect-reception acknowledgement frame returned by the receiver is received is beyond the lifetime of the automatic repeat request; where retransmitting the second packet includes: extending the lifetime of the automatic repeat request process to a third predetermined time interval following the first predetermined time interval, where the third predetermined time interval is at least a time period required for retransmitting the second packet; and retransmitting the second packet after the first predetermined time interval.

公开(公告)号：US11672022B2

公开(公告)日：2023-06-06

申请号：US17466422

申请日：2021-09-03

Applicant: ZTE Corporation

Inventor： Nan Li ,  Kaiying Lv ,  Weimin Xing

IPC: H04W74/08 ,  H04W72/00

CPC classification number: H04W74/0833 ,  H04W72/005 ,  H04W74/08

Abstract: Provided are a channel access method, an access point (AP) and a station. The method includes that the access point sends a radio frame to a station. The radio frame carries a predefined identifier or a partial predefined identifier for indicating one or more Basic Service Sets (BSSs) in a BSS set of the access point.

公开(公告)号：US11671207B2

公开(公告)日：2023-06-06

申请号：US17275154

申请日：2019-09-09

Applicant: ZTE Corporation

Inventor： Dan Yang ,  Ning Wei ,  Nan Li ,  Zhiqiang Han ,  Bo Sun

IPC: H04L1/18 ,  H04L1/1812

CPC classification number: H04L1/1819

Abstract: Provided are a method for implementing an automatic retransmission function and a related station. The method includes that a first station sends a first message. The first message carries automatic retransmission enable information. The automatic retransmission enable information is used for instructing that the automatic retransmission function be enabled or disabled.

公开(公告)号：US11653302B2

公开(公告)日：2023-05-16

申请号：US16923842

申请日：2020-07-08

Applicant: ZTE CORPORATION

Inventor： Kaiying Lv ,  Nan Li ,  Bo Sun

IPC: H04W52/02 ,  H04J3/06 ,  H04W84/18 ,  H04W88/06

CPC classification number: H04W52/0229 ,  H04J3/0673 ,  H04J3/0682 ,  H04W52/0206 ,  H04W52/0216 ,  H04W84/18 ,  H04W88/06

Abstract: Systems, methods and devices for low power channel access using a wake up radio are disclosed herein. In accordance with one exemplary embodiment, a method performed by a communication device includes: receiving a wake up signal at a wake up radio from a communication node at a receipt time, wherein the wake up signal indicates a node active time for a main radio to begin communicating with the communication node; determining a transition time between an initiation time for the main radio and a device active time, wherein the device active time is during the node active time; determining a delay time from the receipt time to the initiation time; initiating the main radio at the initiation time; and communicating with the communication node using the main radio during the device active time.

公开(公告)号：US11483813B2

公开(公告)日：2022-10-25

申请号：US16612378

申请日：2018-04-16

Applicant: ZTE CORPORATION

Inventor： Nan Li ,  Kaiying Lv ,  Chen Lu ,  Ning Wei ,  Zhiqiang Han ,  Bo Sun

IPC: H04W72/04 ,  H04W52/02 ,  H04W56/00

Abstract: The present invention relates to wireless communication technology, and particularly relates to a signal transmission method and a communication device. The signal transmission method includes: transmitting, by a first communication node, a signal on one or more first channels located in a primary transmission channel and/or a secondary transmission channel of the first communication node, and before transmitting the signal, performing channel protection on a transmission channel where the first channel is located and/or the primary transmission channel. Correspondingly, further provided is a communication device.

公开(公告)号：US11240822B2

公开(公告)日：2022-02-01

申请号：US16083375

申请日：2016-09-01

Applicant: ZTE CORPORATION

Inventor： Zhiqiang Han ,  Weimin Xing ,  Kaiying Lv ,  Nan Li

IPC: H04W72/08 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

Abstract: A method for processing a network allocation vector (NAV) includes: terminating the receiving of a first radio frame when it is determined that a target receiving station of the first radio frame being received is not a first station; and updating an NAV of the first station or maintaining the NAV of the first station unchanged according to a remaining duration of the first radio frame and a first transmission opportunity duration carried in the first radio frame, where the remaining duration of the first radio frame is the transmission time used for transmitting the remaining part of the first radio frame after the receiving of the first radio frame is terminated. The technical solution solves the problem in the related art of collisions with hidden stations caused by an inaccurate NAV update in the existing art, thereby ensuring the accuracy of an NAV update and the fairness of transmission and channel contention, and reducing collisions among hidden stations.

公开(公告)号：US10313059B2

公开(公告)日：2019-06-04

申请号：US15501952

申请日：2014-11-26

Applicant: ZTE Corporation

Inventor： Bo Sun ,  Kaiying Lv ,  Nan Li

IPC: H04W4/00 ,  H04L1/16 ,  H04L1/08 ,  H04L1/18

Abstract: Provided are a data sending feedback method and apparatus, and a data sending method and apparatus. According to data sending feedback method, when reception of a radio frame fails, a receiving station detects whether transmission of the radio frame over a specified sub-channel in a working channel ends within predetermined time; after the receiving station detects that the transmission of the radio frame over the specified sub-channel in the working channel ends within the predetermined time, the receiving station sends a feedback frame to a sending station of the radio frame.

公开(公告)号：US10291380B2

公开(公告)日：2019-05-14

申请号：US15236330

申请日：2016-08-12

Applicant: ZTE Corporation ,  ZTE (USA) Inc.

Inventor： Yonggang Fang ,  Li Zhang ,  Bo Sun ,  Kaiying Lv ,  Nan Li

IPC: H04L5/14 ,  H04J11/00 ,  H04L12/413 ,  H04W76/00 ,  H04W74/08 ,  H04W74/00 ,  H04W84/12

Abstract: Multiple wireless devices in a network perform full duplex communication in which the transmission path and receiving path are spatially separated to allow simultaneous transmission and receiving. The wireless devices can either be controlled using a centralized, or point, coordination function or a distributed coordination function. A full-duplex wireless device senses the medium during transmission by itself and selectively continues the transmission when a signal is sensed on the medium. A full-duplex wireless device measures signal being transmitted by its transmitter and estimates parameters that can be used to cancel the contribution of the locally transmitted signal to the locally received signal concurrently being received during the transmission. The transmit antenna and the receive antenna of a full-duplex wireless device can be configured to be spatially isolated from each other to minimize interference between the antenna functions.

公开(公告)号：US09979521B2

公开(公告)日：2018-05-22

申请号：US15038044

申请日：2014-06-18

Applicant: ZTE CORPORATION

Inventor： Nan Li ,  Chen Huang ,  Dongying Zhang ,  Zhen Ren ,  Peng Geng ,  Gang Qiu ,  Yufeng Ruan ,  Fang Zhang ,  Xi Yuan

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/024 ,  H04W72/00

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/00 ,  H04W72/042

Abstract: The present document discloses a method, apparatus and system for indicating downlink resources of a coordinated multi-point network in an LTE system. The method includes: determining a control station/cell and a service station/cell of a User Equipment (UE); and indicating through signaling that a Physical Downlink Shared Channel (PDSCH) of the UE occupies radio resources of the service station/cell in a control region, whereby a start position of the PDSCH allocated for the UE by the service station/cell is the first symbol of a subframe, and when a resource mapping in the control region is performed, the PDSCH does not occupy Resource Elements (REs) occupied by a Cell Reference Signal (CRS), a Physical Control Format Indicator Channel (PCFICH), a Physical Hybrid-ARQ Indicator Channel (PHICH) of a station/cell where the PDSCH is located, and a Physical Downlink Control Channel PDCCH of the UE.

公开(公告)号：US09848444B2

公开(公告)日：2017-12-19

申请号：US14426227

申请日：2012-09-27

Applicant: ZTE Corporation

Inventor： Weimin Xing ,  Kaiying Lv ,  Bo Sun ,  Jing Jiang ,  Nan Li ,  Kaibo Tian

IPC: H04W74/08 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W84/12

Abstract: Provided are a method and system for a wireless STA to access a channel. The method includes that the wireless STA acquires a transmission ending moment of a wireless frame when selecting to refuse or drop the wireless frame and not updating a locally stored Network Allocation Vector (NAV); and the wireless STA accesses the channel when the transmission of the wireless frame is ended and a preset condition is met. According to the disclosure, a collision problem may happen to the wireless STA, and the wireless STA can access the channel only when the preset condition is determined to be met after the transmission of the wireless frame is ended, so that the problem of transmission collision with a hidden STA during the wireless frame transmission of the wireless STA is solved.