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    Encoding method, decoding method, encoding device and decoding device for structured LDPC
    1.
    发明授权
    Encoding method, decoding method, encoding device and decoding device for structured LDPC 有权

    公开(公告)号：US10320419B2

    公开(公告)日：2019-06-11

    申请号：US15120126

    申请日：2014-08-25

    Applicant: ZTE CORPORATION

    Inventor： Jun Xu ,  Liguang Li ,  Zhifeng Yuan ,  Jin Xu ,  Kaibo Tian

    IPC: H03M13/00 ,  H03M13/11 ,  H03M13/03

    Abstract: An encoding method, decoding method, encoding device and decoding device for structured LDPC codes. The method includes: determining a basic matrix used for encoding, which includes K0 up-and-down adjacent pairs; and according to the basic matrix and an expansion factor corresponding to the basic matrix, performing an LDPC encoding operation of obtaining a codeword of Nb×z bits according to source data of (Nb−Mb)×z bits, herein z is the expansion factor, and z is a positive integer which is greater than or equal to 1. The provided technical solution is applicable to the encoding and decoding of the structured LDPC, thereby realizing the encoding and decoding of LDPC at the high pipeline speed.

    Radio frame receiving method and device
    3.
    发明授权
    Radio frame receiving method and device 有权

    公开(公告)号：US09883530B2

    公开(公告)日：2018-01-30

    申请号：US14396657

    申请日：2012-12-26

    Applicant: ZTE Corporation

    Inventor： Weimin Xing ,  Kaiying Lv ,  Bo Sun ,  Kaibo Tian ,  Jing Jiang ,  Zhiqiang Han

    IPC: H04W74/08 ,  H04W52/02 ,  H04W16/14 ,  H04W84/12

    CPC classification number: H04W74/08 ,  H04W16/14 ,  H04W52/0238 ,  H04W74/0816 ,  H04W84/12 ,  Y02B70/30 ,  Y02D70/142 ,  Y02D70/22

    Abstract: Disclosed are a method and device for receiving the radio frame. The method comprises: a first functional entity of a station detects that a channel signal intensity reaches a preset threshold, and the first functional entity starts receiving a radio frame and sends an indication that a channel detection result is busy to a second functional entity of the station; the first functional entity determines that the station is not a target station for receiving the radio frame, and sends an indication of ending up receiving the radio frame to the second functional entity; and when transmission of the radio frame ends, the first functional entity sends an indication that the channel detection result is idle to the second functional entity. The disclosure provides a reception operation processing procedure of a station having the function of discarding the radio frame while not updating a network allocation vector (NAV).

    Methods and devices for transmitting frame in network
    4.
    发明授权
    Methods and devices for transmitting frame in network 有权

    公开(公告)号：US09838907B2

    公开(公告)日：2017-12-05

    申请号：US14758327

    申请日：2012-12-26

    Applicant: ZTE Corporation

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

    IPC: H04W28/06 ,  H04W80/02 ,  H04L12/801 ,  H04L29/08

    CPC classification number: H04W28/06 ,  H04L47/14 ,  H04L69/324 ,  H04W80/02

    Abstract: Provided are methods and devices for transmitting a frame in a network. The method includes: setting, by a sending station, a media access control (MAC) frame header of a MAC frame, wherein the MAC frame header includes at least one bit for indicating whether the MAC frame header adopts an optimized MAC header format, the optimized MAC frame header format referring to a MAC frame format in which only necessary frame header information is reserved (S302); sending, by the sending station, the MAC frame to a receiving station (S304). The present disclosure not only ensures correct sending and receiving of a frame, but also effectively reduces the overhead of the frame header.

    Downlink Data Collision Avoidance Method, Access Point and Station
    5.
    发明申请
    Downlink Data Collision Avoidance Method, Access Point and Station 有权
    下行数据冲突避免方法，接入点和站点

    公开(公告)号：US20150055577A1

    公开(公告)日：2015-02-26

    申请号：US14387578

    申请日：2013-01-22

    Applicant: ZTE CORPORATION

    Inventor： Zhiqiang Han ,  Kaiying Lv ,  Bo Sun ,  Kaibo Tian ,  Weimin Xing ,  Nan Li ,  Dan Yang

    IPC: H04W72/12 ,  H04W76/02 ,  H04W84/12 ,  H04W88/08

    CPC classification number: H04W72/1257 ,  H04L1/00 ,  H04W52/00 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08

    Abstract: The present document provides a method for avoiding downlink data collision, an Access Point (AP) and a Station (STA). The method for avoiding downlink data collision includes: an AP receiving a radio frame for inquiring whether the AP has a Bufferable Unit (BU) of an STA transmitted by the STA; and after determining that there is a BU of the STA and the BU is larger than a predetermined threshold, the AP exchanging radio frames with the STA to reserve a channel, and transmitting the BU to the STA after succeeding in reserving the channel. The method can guarantee the fairness among various STAs and the reasonable utilization of channel resources, thus avoiding the collision; furthermore, the channel reservation frame transmitted by the AP can reserve a longer period of time, i.e. a plurality of BUs can be transmitted to the STA at a time, thus saving the link overhead.

    Abstract translation: 本文提供了一种用于避免下行链路数据冲突的方法，接入点（AP）和站（STA）。 用于避免下行数据冲突的方法包括：接收无线帧的AP，用于询问AP是否具有由STA发送的STA的可缓冲单元（BU）; 并且在确定STA的BU和BU大于预定阈值之后，AP与STA交换无线帧以保留信道，并且在成功保留该信道之后向STA发送该BU。 该方法可以保证各种STA的公平性和信道资源的合理利用，避免碰撞; 此外，由AP发送的信道预留帧可以保留更长的时间段，即一次可以向STA发送多个BU，从而节省链路开销。

    Wireless signal transmission method and system
    9.
    发明授权
    Wireless signal transmission method and system 有权

    公开(公告)号：US10432348B2

    公开(公告)日：2019-10-01

    申请号：US15737854

    申请日：2016-08-22

    Applicant: ZTE CORPORATION

    Inventor： Weimin Xing ,  Kaiying Lv ,  Kaibo Tian

    IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W72/12 ,  H04W74/00 ,  H04W84/12 ,  H04W80/02

    Abstract: A wireless signal transmission method includes: transmitting, by a transmitting station, a wireless signal to a plurality of receiving stations, wherein the wireless signal comprises a first portion and a second portion, the first portion being a trigger frame with a first type of frame format which can be independently decoded, the second portion being a specific signal with a second type of frame format; and receiving, by the transmitting station, a radio frame transmitted by at least one of the plurality of receiving stations. The wireless signal transmission method provided by the present disclosure are used to solve the problems in the prior art that a trigger frame is not able to complete transmission resources reservation and trigger multi-user transmission at the same time as satisfying the training accuracy required for uplink multi-user transmission.

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