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公开(公告)号：US10820207B2
公开(公告)日：2020-10-27
申请号：US15590851
申请日：2017-05-09
Applicant: MEDIATEK INC.
Inventor： Jianhan Liu , Tianyu Wu , Rongsheng Huang , James June-Ming Wang
Abstract: A backward compatible frame reuse mechanism that allows new information to be defined a reused frame without causing any incorrect operation in a legacy receive device. To generate a reused frame, a portion of the frame in the first format is masked with a predetermined masking sequence (PMS) and thereby redefined as new fields in a second format. When a device that supports the reuse scheme receives a frame that possible is a reused frame, the device checks the potentially reused portion according to the first format after de-masking and also checks according to the second format without de-masking. Based on the check results, the device selects a format to resolve the frame. A legacy device receiving the reused frame only checks the reused portion without de-masking, which results in a certain check error and makes the device discard the frame without any harmful operation.
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公开(公告)号：US10091822B2
公开(公告)日：2018-10-02
申请号：US14977632
申请日：2015-12-21
Applicant: MEDIATEK INC.
Inventor： Rongsheng Huang , Tianyu Wu , Jianhan Liu , Chao-Chun Wang , Chih-Shi Yee
Abstract: A method of improved allocation of uplink resources in an OFDMA network is proposed. A wireless communications station (an AP) reserves both dedicated resource and contention resource for uplink OFDMA operation for a list of communications devices (STAs). The AP can switch between random access operation and non-random access operation without the need for any special protection mechanisms. In the event of an increase in uplink OFDMA frame collisions the AP can switch from random operation to non-random operation to reduce the number of collisions. In the event of a decrease in uplink OFDMA frame collisions the AP can switch from non-random operation to random operation to reduce required AP processing. The AP can also dynamically control a STA access probability to reduce the number of collisions by reducing the number of uplink OFDMA frames each STA transmits.
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公开(公告)号：US20180013665A1
公开(公告)日：2018-01-11
申请号：US15641742
申请日：2017-07-05
Applicant: MEDIATEK INC.
Inventor： Li-Chun Ko , Rongsheng Huang
IPC: H04L12/721 , H04L12/707 , H04L12/761 , H04L12/751
Abstract: Systems and methods of mesh network communication enabling a relay node to autonomously select a packet propagation mechanism. Upon receiving a packet, which may carry an indication for flooding propagation as set by the edge node originating the packet, or carry no specification for any propagation mode, the relay node determines whether the packet is eligible for routing-propagation based on a number of factors, such as whether there is an existent valid route from the source node to the destination node, whether the packet is originated from a friend edge node, and whether a route discovery process has been initiated. Accordingly, the relay node may change the indication to routing propagation and forward it by routing-relaying. Thus, the packet can be propagated over the mesh network by routing propagation, despite the initial setting for flooding propagation as specified by the edge node or no setting by the edge node.
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Patent Agency Ranking
公开(公告)号：US10680939B2
公开(公告)日：2020-06-09
申请号：US15641742
申请日：2017-07-05
Applicant: MEDIATEK INC.
Inventor： Li-Chun Ko , Rongsheng Huang
IPC: H04L12/721 , H04L12/707 , H04L12/751 , H04L12/761 , H04W40/24 , H04W84/18 , H04W40/22 , H04W40/26
Abstract: Systems and methods of mesh network communication enabling a relay node to autonomously select a packet propagation mechanism. Upon receiving a packet, which may carry an indication for flooding propagation as set by the edge node originating the packet, or carry no specification for any propagation mode, the relay node determines whether the packet is eligible for routing-propagation based on a number of factors, such as whether there is an existent valid route from the source node to the destination node, whether the packet is originated from a friend edge node, and whether a route discovery process has been initiated. Accordingly, the relay node may change the indication to routing propagation and forward it by routing-relaying. Thus, the packet can be propagated over the mesh network by routing propagation, despite the initial setting for flooding propagation as specified by the edge node or no setting by the edge node.
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公开(公告)号：US10158562B2
公开(公告)日：2018-12-18
申请号：US15349105
申请日：2016-11-11
Applicant: MEDIATEK INC.
Inventor： Li-Chun Ko , Rongsheng Huang
Abstract: A wireless communication device, serving as a destination node of one or more data packets propagated in a wireless mesh network, is provided. The wireless communication device includes a wireless transceiver and a controller. The wireless transceiver performs wireless transmission and reception in the wireless mesh network. The controller selects a first relay node to serve as a friend node for the wireless communication device and to store the data packets which arrive when the wireless communication device operates in a sleep mode, and broadcast, via the wireless transceiver, a notification message in the wireless mesh network when selecting a second relay node to serve as the friend node for the wireless communication device.
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公开(公告)号：US20170332241A1
公开(公告)日：2017-11-16
申请号：US15590851
申请日：2017-05-09
Applicant: MEDIATEK INC.
Inventor： Jianhan Liu , Tianyu Wu , Rongsheng Huang , James June-Ming Wang
Abstract: A backward compatible frame reuse mechanism that allows new information to be defined a reused frame without causing any incorrect operation in a legacy receive device. To generate a reused frame, a portion of the frame in the first format is masked with a predetermined masking sequence (PMS) and thereby redefined as new fields in a second format. When a device that supports the reuse scheme receives a frame that possible is a reused frame, the device checks the potentially reused portion according to the first format after de-masking and also checks according to the second format without de-masking. Based on the check results, the device selects a format to resolve the frame. A legacy device receiving the reused frame only checks the reused portion without de-masking, which results in a certain check error and makes the device discard the frame without any harmful operation.
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公开(公告)号：US09673956B2
公开(公告)日：2017-06-06
申请号：US14838366
申请日：2015-08-28
Applicant: MEDIATEK INC.
Inventor： Jianhan Liu , Tianyu Wu , Rongsheng Huang , James June-Ming Wang
CPC classification number: H04L5/006 , H04L1/0003 , H04W28/06 , H04W28/18 , H04W48/16 , H04W74/00 , H04W74/0808 , H04W84/12 , Y02D70/00 , Y02D70/142
Abstract: A spatial reuse prioritized channel access scheme is proposed to enhance the average throughput per station in a wireless network by optimizing spatial reuse. Spatial reuse capability (SRC) is defined as a monotonically decreasing function of co-channel interference signal strength from OBSSs. Higher spatial reuse capability can be transformed into higher data rate or less usage of airtime by using higher MCS or less interferences to OBSSs by reducing TX power. By allowing the stations that have larger spatial reuse capability to have higher probability to win channel access contention, the overall network throughput is enhanced.
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公开(公告)号：US20160066257A1
公开(公告)日：2016-03-03
申请号：US14838366
申请日：2015-08-28
Applicant: MEDIATEK INC.
Inventor： Jianhan Liu , Tianyu Wu , Rongsheng Huang , James June-Ming Wang
CPC classification number: H04L5/006 , H04L1/0003 , H04W28/06 , H04W28/18 , H04W48/16 , H04W74/00 , H04W74/0808 , H04W84/12 , Y02D70/00 , Y02D70/142
Abstract: A spatial reuse prioritized channel access scheme is proposed to enhance the average throughput per station in a wireless network by optimizing spatial reuse. Spatial reuse capability (SRC) is defined as a monotonically decreasing function of co-channel interference signal strength from OBSSs. Higher spatial reuse capability can be transformed into higher data rate or less usage of airtime by using higher MCS or less interferences to OBSSs by reducing TX power. By allowing the stations that have larger spatial reuse capability to have higher probability to win channel access contention, the overall network throughput is enhanced.
Abstract translation: 提出了空间重用优先级信道接入方案，通过优化空间重用来提高无线网络中每个站的平均吞吐量。 空间复用能力（SRC）被定义为来自OBSS的同信道干扰信号强度的单调递减函数。 通过降低TX功率，可以通过使用更高的MCS或更少的OBSS干扰来将更高的空间重用能力转换为更高的数据速率或更少的通话时间的使用。 通过允许具有较大空间重用能力的站点具有较高的赢得频道接入争用的概率，增强了整体网络吞吐量。
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