公开(公告)号：US10104676B2

公开(公告)日：2018-10-16

申请号：US15145309

申请日：2016-05-03

Applicant: MEDIATEK INC.

Inventor： Yuh-Ren Jauh ,  Ching-Hwa Yu ,  Chao-Chun Wang

IPC: H04W72/10 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W28/06 ,  H04W88/08 ,  H04W84/12

Abstract: A method of performing OFDMA transmission with aggregation from multiple access categories to improve channel utilization of a wireless channel is proposed. In one novel aspect, data from multiple access categories are allowed to be aggregated and transmitted in the same packet to utilize idle time efficiently. In downlink OFDMA, AP can send different AC data to different STAs so that AP can better arrange the transmission resource block. If the resource for one STA has long enough idle time, AP can aggregate more data that is different to the current AC for the same STA to better utilize the resource. In UL OFDMA, different STAs can send different AC data to AP. If the resource for one STA has long enough idle time, the STA can aggregate more data that is different to the current AC to better utilize the resource.

公开(公告)号：US10104186B2

公开(公告)日：2018-10-16

申请号：US14916182

申请日：2015-08-13

Applicant: MEDIATEK INC.

Inventor： Yu-Che Tsai ,  Chao-Chun Wang ,  Yung-En Hsieh ,  I-Cheng Tsai

IPC: H04L29/08 ,  H04W8/00 ,  H04W84/18 ,  H04W84/12

Abstract: A device-centric discovery mechanism requiring very low power consumption to find out information about each other directly in a self-managed mobile environment is proposed. A mobile communications device joins a self-managed communications network, which does not have a centralized management entity. The mobile device receives a request from a peer communications device about publishing a service or subscribing to a service in accordance with a first schedule. The mobile device announce the request on behalf of the peer communications device in accordance with a second schedule. The service is then provided by a service advertiser to a service seeker in accordance with a third schedule.

公开(公告)号：US09749967B2

公开(公告)日：2017-08-29

申请号：US15257074

申请日：2016-09-06

Applicant: MEDIATEK INC.

Inventor： James June-Ming Wang ,  Jianhan Liu ,  Chao-Chun Wang ,  YungPing Hsu

IPC: H04W52/24 ,  H04W52/50 ,  H04B17/345 ,  H04W16/02 ,  H04W74/08 ,  H04W52/14 ,  H04W84/12

CPC classification number: H04W52/243 ,  H04B17/345 ,  H04W16/02 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W52/247 ,  H04W52/50 ,  H04W74/0816 ,  H04W84/12

Abstract: A method of spatial reuse with opportunistic transmit power control (TPC) and clear channel assessment (CCA) is proposed. In the opportunistic TPC and CCA, a spatial reuse station (SR-STA) gains enough knowledge in certain situation for more aggressive spatial reuse such that its transmit power may be adjusted to meet the spatial reuse conditions based on the received OBSS PPDU and the corresponding spatial reuse parameter (SRP). Both Type 1 SRP and Type 2 SRP are defined. In one example, the Type 1 or Type 2 SRP is a 5-bit parameter carried in the HE-SIG-A field of the OBSS PPDU, which can be a trigger frame, a response frame, a request-to-send (RTS)/clear-to-send (CTS) frame, and a data frame.

公开(公告)号：US20160262037A1

公开(公告)日：2016-09-08

申请号：US15059308

申请日：2016-03-03

Applicant: MEDIATEK INC.

Inventor： Tsai-Yuan Hsu ,  Chao-Chun Wang

IPC: H04W24/10 ,  H04L5/00 ,  H04L12/26 ,  H04W24/08

CPC classification number: H04L43/067 ,  H04L5/0055 ,  H04L43/065

Abstract: A wireless communication method includes: sending a request frame to a responder, wherein the request frame includes a first message arranged to indicate what information the initiator supports; receiving a measurement frame from a responder, wherein the measurement frame includes a second message arranged to indicate what information the responder requires; and sending a report frame to the responder, wherein the report frame includes the information the responder requires.

Abstract translation: 无线通信方法包括：向应答者发送请求帧，其中所述请求帧包括布置成指示所述发起者支持什么信息的第一消息; 从应答器接收测量帧，其中所述测量帧包括布置成指示所述应答器所需的信息的第二消息; 并向所述应答者发送报告帧，其中所述报告帧包括所述响应者需要的信息。

公开(公告)号：US20160205533A1

公开(公告)日：2016-07-14

申请号：US14915642

申请日：2015-08-13

Applicant: MEDIATEK INC.

Inventor： Yu-Che Tsai ,  Chao-Chun Wang

IPC: H04W8/00 ,  H04W52/02 ,  H04W4/02 ,  H04L29/08

CPC classification number: H04W8/005 ,  H04L67/16 ,  H04W4/023 ,  H04W4/80 ,  H04W52/0216 ,  H04W76/10 ,  H04W76/14 ,  H04W84/12 ,  H04W88/182 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: An access point (AP) accepts a communications device to join a wireless communications network. The AP registers a service provided by the communications device. The service is available in accordance with a schedule and a set of service parameters. The AP receives a request from a peer communications device seeking the service. The AP announces availability of the service on behalf of the communications device while the communications device is unavailable. The service is later provided by the communications device to the peer communications device when both devices are available to communicate. By utilizing an always-on AP to announce service availability and to exchange service parameters, fast service discovery can be achieved with low power consumption for both service advertisers and service seekers.

Abstract translation: 接入点（AP）接受通信设备加入无线通信网络。 AP注册通信设备提供的服务。 该服务可以按照时间表和一组服务参数进行。 AP从寻求该服务的对等通信设备接收请求。 当通信设备不可用时，AP通知代表通信设备的服务的可用性。 当两个设备可用于通信时，该服务随后由通信设备提供给对等通信设备。 通过利用永远在线的AP来宣布服务可用性和交换服务参数，可以为服务广告商和服务寻求者提供低功耗的快速服务发现。

公开(公告)号：US12089134B2

公开(公告)日：2024-09-10

申请号：US17522918

申请日：2021-11-10

Applicant: MEDIATEK INC.

Inventor： Chien-Fang Hsu ,  Chao-Chun Wang ,  James Chih-Shi Yee

IPC: H04W40/38 ,  H04W48/00 ,  H04W76/15 ,  H04W88/08 ,  H04W88/12

CPC classification number: H04W40/38 ,  H04W48/17 ,  H04W76/15 ,  H04W88/08 ,  H04W88/12

Abstract: An access point (AP) includes a transmitter (TX) circuit, a receiver (RX) circuit, and a control circuit. The control circuit negotiates with at least one another AP via the TX circuit and the RX circuit, for setting up a coordinated service period (SP). In addition, a method for setting up the coordinated SP in a multiple AP environment includes: sending a request frame from a first AP to at least one second AP, wherein the request frame includes a plurality of SP parameters; receiving a response frame generated from the at least one second AP in response to the request frame; and in response to the response frame, setting up the coordinated SP by sending a setup frame to the at least one another AP, wherein the setup frame is set by updating at least a portion of the plurality of SP parameters.

公开(公告)号：US11490251B2

公开(公告)日：2022-11-01

申请号：US16030710

申请日：2018-07-09

Applicant: MEDIATEK INC.

Inventor： Yongho Seok ,  Chao-Chun Wang ,  Chih-Shi Yee

IPC: H04W12/04 ,  H04W12/06 ,  H04L9/40 ,  H04W84/12 ,  H04W12/12 ,  H04W24/10 ,  H04W4/02

Abstract: Methods and apparatus for performing secure ranging measurements between wireless devices are disclosed herein according to embodiments of the present invention. The described embodiments use key values to indicate which LTF sequence (e.g., LTF measurement exchange) to use for performing wireless ranging measurements. A LTF sequence that is received by a wireless device that does not correspond with the associated key value is determined to be invalid. Invalid LTF sequences may be disregarded as signal noise.

公开(公告)号：US20220150796A1

公开(公告)日：2022-05-12

申请号：US17522918

申请日：2021-11-10

Applicant: MEDIATEK INC.

Inventor： Chien-Fang Hsu ,  Chao-Chun Wang ,  James Chih-Shi Yee

IPC: H04W40/38 ,  H04W88/08 ,  H04W76/15 ,  H04W88/12 ,  H04W48/00

Abstract: An access point (AP) includes a transmitter (TX) circuit, a receiver (RX) circuit, and a control circuit. The control circuit negotiates with at least one another AP via the TX circuit and the RX circuit, for setting up a coordinated service period (SP). In addition, a method for setting up the coordinated SP in a multiple AP environment includes: sending a request frame from a first AP to at least one second AP, wherein the request frame includes a plurality of SP parameters; receiving a response frame generated from the at least one second AP in response to the request frame; and in response to the response frame, setting up the coordinated SP by sending a setup frame to the at least one another AP, wherein the setup frame is set by updating at least a portion of the plurality of SP parameters.

公开(公告)号：US10972963B2

公开(公告)日：2021-04-06

申请号：US15648357

申请日：2017-07-12

Applicant: MEDIATEK INC.

Inventor： Chien-Fang Hsu ,  Chao-Chun Wang ,  Chih-Shi Yee ,  Gabor Bajko

IPC: H04B7/0452 ,  H04L5/00 ,  H04W8/24 ,  H04W24/02 ,  H04W24/10 ,  H04W28/02 ,  H04W48/06 ,  H04W48/10 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W72/04 ,  H04W72/12 ,  H04W76/10 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

Abstract: Systems and methods of providing Basis Service Set (BSS) load information pertinent to multi-user (MU) communications in WLAN systems. An access point (AP) can determine the counts of MU-capable user stations (STAs) active STAs in a BSS. Each MU-capable STA is configured for Multi-User Multiple-Input Multiple-Output (MU-MIMO) communications and/or Orthogonal Frequency-Division Multiple Access (OFDMA) communications. The AP can further determine ratios of PPDU time over an observation period of MU uplink (UL) and downlink (DL) communications, respectively. The AP can further determine an underutilization level of each available frequency subband, the underutilization level integrating the actual underutilization in terms of both spatial streams and frequency subbands. The DL and UL underutilization levels can be separately determined and reported. The MU BSS load information can be included in a beacon frame as a BSS load information element and distributed to user STAs periodically.

公开(公告)号：US10003512B2

公开(公告)日：2018-06-19

申请号：US15059308

申请日：2016-03-03

Applicant: MEDIATEK INC.

Inventor： Tsai-Yuan Hsu ,  Chao-Chun Wang

IPC: H04J3/06 ,  H04L12/26 ,  H04L5/00

CPC classification number: H04L43/067 ,  H04L43/065

Abstract: A wireless communication method includes: sending a request frame to a responder, wherein the request frame includes a first message arranged to indicate what information the initiator supports; receiving a measurement frame from a responder, wherein the measurement frame includes a second message arranged to indicate what information the responder requires; and sending a report frame to the responder, wherein the report frame includes the information the responder requires.