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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
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。
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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
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.
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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
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.
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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
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.
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公开(公告)号：US11265913B2
公开(公告)日：2022-03-01
申请号：US16609065
申请日：2018-04-16
Applicant: ZTE Corporation
Inventor： Bo Zhang , Kaiying Lv , Zhiqiang Han
Abstract: Provided is a channel access method. The method includes: after a radio frame is received, determining that the radio frame is an overlapping basic service set (OBSS) radio frame; determining that the OBSS radio frame is a radio frame of a specified type or determining whether the OBSS radio frame carries specific spatial multiplexing instruction information; updating a local network allocation vector according to duration information carried in the OBSS radio frame; and performing channel access according to the local network allocation vector. Provided are a channel access device and a storage medium.
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Patent Agency Ranking
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
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.
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公开(公告)号：US11109419B2
公开(公告)日：2021-08-31
申请号：US16609083
申请日：2018-03-27
Applicant: ZTE Corporation
Inventor： Zhiqiang Han , Kaiying Lv , Bo Sun , Chen Lu
Abstract: Disclosed is a network access method, including that a station receives a first radio frame from a first access point, where the first radio frame indicates a resource unit for a random-access operation; and when the sending address of the first radio frame is a public identity or a private identity, the station performs the random-access operation. Also disclosed are a network access apparatus and a storage medium.
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公开(公告)号：US11064536B2
公开(公告)日：2021-07-13
申请号：US16609083
申请日：2018-03-27
Applicant: ZTE Corporation
Inventor： Zhiqiang Han , Kaiying Lv , Bo Sun , Chen Lu
Abstract: Disclosed is a network access method, including that a station receives a first radio frame from a first access point, where the first radio frame indicates a resource unit for a random-access operation; and when the sending address of the first radio frame is a public identity or a private identity, the station performs the random-access operation. Also disclosed are a network access apparatus and a storage medium.
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公开(公告)号：US20200252968A1
公开(公告)日：2020-08-06
申请号：US16857688
申请日：2020-04-24
Applicant: ZTE Corporation
Inventor： Kaiying Lv , Bo Sun , Kaibo Tian , Weimin Xing , Yonggang Fang
Abstract: A method of setup a protection mechanism for scheduled transmissions to multiple stations is introduced. Through transmitting a control frame addressing to multiple stations for immediate simultaneous responses, the transmitter would know the stations that are ready for receiving the scheduled data frames and schedule the packet for those stations. Combining the transmission of the control frame with the power saving mechanism would allow triggering a group of power saving stations to wake up at same for receiving the control frame and scheduled user data frames. A new mechanism of simultaneous group responses to the control frame with orthogonal identifier information for individual station is provided to uniquely identify the responding stations.
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公开(公告)号：US10560295B2
公开(公告)日：2020-02-11
申请号：US15739676
申请日：2016-06-25
Applicant: ZTE Corporation
Inventor： Yonggang Fang , Kaiying Lv , Bo Sun , ZhiQiang Han , Weimin Xing
IPC: H04L1/18 , H04L27/26 , H04L5/00 , H04W48/02 , H04W48/16 , H04W72/04 , H04W74/00 , H04W74/08 , H04W84/12
Abstract: Access to a wireless medium is controlled based on contention arbitration. A certain number of wireless devices are allowed by an access point to contend for a transmission opportunity. A trigger frame is used to communicate access opportunities to multiple devices. A beacon transmission may additionally be used for communication of access opportunities.
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