公开(公告)号：US09642035B2

公开(公告)日：2017-05-02

申请号：US14021621

申请日：2013-09-09

Applicant: ZTE Corporation ,  ZTE (USA) Inc.

Inventor： Yonggang Fang ,  Bo Sun ,  Kaiying Lv

IPC: H04W28/02 ,  H04W52/02 ,  H04W74/04 ,  H04W24/00 ,  H04W48/00 ,  H04W28/06 ,  H04W84/12

CPC classification number: H04W28/0289 ,  H04W24/00 ,  H04W28/06 ,  H04W48/00 ,  H04W52/0212 ,  H04W74/04 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: A wireless local area network comprises an access point and at least one wireless device. The access point indicates in a downlink transmission whether access to the network is based on active scan or polling. The indication is changeable responsive to whether a beacon transmission time is approaching, whether a new scan is to be forced or whether network traffic is about to reach an overload condition.

公开(公告)号：US09419777B2

公开(公告)日：2016-08-16

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 ,  H04J11/00 ,  H04L12/413 ,  H04W76/00 ,  H04W74/08 ,  H04W74/00

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。

公开(公告)号：US20150282043A1

公开(公告)日：2015-10-01

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: H04W40/08 ,  H04W52/24 ,  H04W40/16 ,  H04W48/10 ,  H04W72/08

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.

Abstract translation: 发射无线设备向接收无线设备提供信道接入信息，以便接收无线设备确定何时发射以及要用于传输的传输参数。 信道访问信息可以由在基本服务集合和重叠基本服务集中操作的无线设备不同地使用。 信道访问信息可以包括指示所使用的传输功率的字段，可用的信噪比余量等等。 可以在实现的PHY层处生成和发送信道接入信息，从而向接收无线设备提供快速传送。

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。