公开(公告)号：US09622189B2

公开(公告)日：2017-04-11

申请号：US14670389

申请日：2015-03-26

Applicant: ZTE Corporation

Inventor： Yonggang Fang ,  Bo Sun ,  Anming Jiang ,  Nan Li ,  Kaiying Lv

IPC: H04W52/24 ,  H04W72/08 ,  H04W40/16

CPC classification number: H04W52/241 ,  H04W40/16 ,  H04W52/243 ,  H04W72/085 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/34

Abstract: A transmitting wireless device provides channel access information to a receiving wireless device for the receiving wireless device to make a determination of when to transmit and what transmissions parameters to use for the transmission. The channel access information may be used differently by wireless devices operating in a basic service set and an overlapping basic service set. Channel access information may include fields indicative of transmission power used, signal to noise ratio headroom available, and so on. Channel access information may be generated and transmitted at the PHY layer of an implementation, thus providing a fast delivery to the receiving wireless device.

公开(公告)号：US20150312940A1

公开(公告)日：2015-10-29

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

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.

Abstract translation: 提供了一种用于无线STA访问信道的方法和系统。 该方法包括当选择拒绝或丢弃无线帧并且不更新本地存储的网络分配向量（NAV）时，无线STA获取无线帧的传输结束时刻; 并且当无线帧的传输结束且满足预设条件时，无线STA访问信道。 根据本公开，无线STA可能发生冲突问题，无线STA只有在无线帧的传输结束后确定满足预设条件才可以访问信道，从而导致传输冲突的问题 在无线STA的无线帧传输期间利用隐藏的STA来解决。

公开(公告)号：US20150016309A1

公开(公告)日：2015-01-15

申请号：US14330803

申请日：2014-07-14

Applicant: ZTE Corporation ,  ZTE (USA) Inc.

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

IPC: H04L5/14

CPC classification number: H04L5/14 ,  H04J11/0023 ,  H04L12/413 ,  H04W74/002 ,  H04W74/0808 ,  H04W76/00 ,  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.

Abstract translation: 网络中的多个无线设备执行全双工通信，其中传输路径和接收路径在空间上分离以允许同时发送和接收。 无线设备可以使用集中式或点式协调功能或分布式协调功能进行控制。 全双工无线设备在传输期间自身感测介质，并且当在介质上感测到信号时选择性地继续传输。 全双工无线设备测量由其发射机发送的信号，并且估计可以用于在传输期间同时接收到的本地发送信号对本地接收信号的贡献的参数。 全双工无线设备的发射天线和接收天线可被配置为在空间上彼此隔离以最小化天线功能之间的干扰。