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1. 发明申请

WO2015069811A1 RECEPTION FAILURE FEEDBACK SCHEME IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网接收故障反馈方案
公开(公告)号：WO2015069811A1
公开(公告)日：2015-05-14
申请号：PCT/US2014/064189
申请日：2014-11-05
申请人： MEDIATEK SINGAPORE PTE. LTD. , LIU, Jianhan , WANG, Chao-Chun , PARE JR., Thomas Edward , HSU, Yung-Ping
发明人： LIU, Jianhan , WANG, Chao-Chun , PARE JR., Thomas Edward , HSU, Yung-Ping
IPC分类号： H04W52/24
CPC分类号： H04L1/0036 , H04B17/318 , H04L1/0025 , H04L1/0026 , H04L1/0027 , H04L1/1607 , H04L1/1854 , H04L1/1864 , H04W84/12
摘要： A novel feedback schemes are introduced to assistant link adaptation for re-transmissions and to improve the network throughput and efficiency. When reception failure is a type B failure, then a failure report (FR) frame is feedback from the destination STA to the source STA. In the failure report frame, link adaptation information and information on failure causes are included.
摘要翻译：引入了一种新的反馈方案，用于重新传输的辅助链路适配，并提高网络吞吐量和效率。当接收失败是B型故障时，故障报告（FR）帧是从目的STA到源STA的反馈。在故障报告帧中，包括链路自适应信息和故障原因信息。

2. 发明申请

WO2015006756A1 METHOD OF CHANNEL ACCESS CONTROL IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网通道接入控制方法
公开(公告)号：WO2015006756A1
公开(公告)日：2015-01-15
申请号：PCT/US2014/046452
申请日：2014-07-13
申请人： MEDIATEK SINGAPORE PTE. LTD. , LIU, Jianhan , WANG, James June-Ming , PARE JR., Thomas Edward , HSU, Yung-Ping
发明人： LIU, Jianhan , WANG, James June-Ming , PARE JR., Thomas Edward , HSU, Yung-Ping
IPC分类号： H04W76/00
CPC分类号： H04W74/002 , H04W24/02 , H04W24/08 , H04W48/08 , H04W74/006 , H04W84/12
摘要： A method to improve the area throughput of dense wireless local area networks (WLAN) by channel access control is proposed. The method allows an access point to obtain information of a plurality of stations within the wireless network. The access point classifies the plurality of stations into at least one group of stations and assigns a group identification (ID) according to the obtained information. The group ID and channel access control parameters are sent to the stations that are classified into the certain group. The stations in each of the group use the received channel access control parameters to communicate with the access point.
摘要翻译：提出了一种通过信道访问控制来提高密集无线局域网（WLAN）面积吞吐量的方法。该方法允许接入点获得无线网络内的多个站的信息。接入点将多个站分类为至少一组站，并根据获得的信息分配组标识（ID）。组ID和通道访问控制参数被发送到分类到特定组的站。每个组中的站使用接收到的信道访问控制参数与接入点进行通信。

3. 发明申请

WO2014210401A3 BEAMFORMING ENHANCEMENTS FOR SPATIAL REUSE IN WIRELESS NETWORKS 审中-公开
公开(公告)号：WO2014210401A3
公开(公告)日：2014-12-31
申请号：PCT/US2014/044471
申请日：2014-06-27
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, James June-Ming , LIU, Jianhan , PARE, Thomas Edward Jr. , WANG, Chao-Chun , YEE, Chih-Shi , HSU, Yung-Ping
发明人： WANG, James June-Ming , LIU, Jianhan , PARE, Thomas Edward Jr. , WANG, Chao-Chun , YEE, Chih-Shi , HSU, Yung-Ping
IPC分类号： H04B15/00
摘要： A method of enhanced beamforming procedure to achieve spatial reuse and thereby improving cell edge performance and area throughput is proposed. The enhanced beamforming method increases the likelihood of channel access under dense deployment condition, reduces interference to OBSS, reduces collision during reception, and increases the likelihood of spatial reuse in dense deployment scenario thus leading to higher network throughput.

4. 发明申请

WO2015130712A1 DIRECTION FINDING AND FTM POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网中的方向寻找和FTM定位
公开(公告)号：WO2015130712A1
公开(公告)日：2015-09-03
申请号：PCT/US2015/017391
申请日：2015-02-24
申请人： MEDIATEK INC. , WANG, James June-Ming , LIU, Jianhan , PARE JR., Thomas Edward , WU, Tianyu , BAJKO, Gabor , HSU, Yung-Ping
发明人： WANG, James June-Ming , LIU, Jianhan , PARE JR., Thomas Edward , WU, Tianyu , BAJKO, Gabor , HSU, Yung-Ping
IPC分类号： H04W64/00
CPC分类号： H04W16/225 , G01S3/14 , G01S3/74 , G01S5/0252 , G01S5/06 , G01S5/12 , G01S13/825 , H04B7/0617 , H04B17/318 , H04L5/0048 , H04L5/005 , H04L69/22 , H04W4/02 , H04W4/023 , H04W4/043 , H04W24/10 , H04W64/00 , H04W84/12
摘要： A method of combined direction finding (DF) and fine timing measurement (FTM) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device (AP) can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas, which allows a receiving device (STA) to resolve multiple DF sounding signals transmitted from the multiple antennas and thereby estimating angle of departure (AoD). On the other hand, the AP can estimate angle of arrival (AoA) from radio signals transmitted from the STA. When the radial resolution error of AoD or AoA positioning increases, DF positioning and fine-timing measurement (FTM) ranging can be jointly applied to reduce the radial resolution error and extends the AoD/AoA service area with positing accuracy.
摘要翻译：提出了一种在无线定位区域网络（WLAN）中组合方向搜索（DF）和精确定时测量（FTM）定位的方法。多天线IEEE 802.11发射设备（AP）可以在来自多个天线的无线帧中发送包含多个长训练场（LTF）符号的信号前导码，这允许接收设备（STA）解析从多个天线发送的多个DF探测信号从而估计出发角度（AoD）。另一方面，AP可以从STA发送的无线电信号估计到达角（AoA）。当AoD或AoA定位的径向分辨率误差增大时，可以共同应用DF定位和精确定时测量（FTM）测距，以减小径向分辨率误差，并以准确的精度扩展AoD / AoA服务区域。

5. 发明申请

WO2015130618A2 DIRECTION FINDING POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：在无线局域网中寻找定位的方向
公开(公告)号：WO2015130618A2
公开(公告)日：2015-09-03
申请号：PCT/US2015/017174
申请日：2015-02-24
申请人： MEDIATEK INC. , WANG, James June-Ming , LIU, Jianhan , PARE JR., Thomas Edward , WU, Tianyu , BAJKO, Gabor , HSU, Yung-Ping
发明人： WANG, James June-Ming , LIU, Jianhan , PARE JR., Thomas Edward , WU, Tianyu , BAJKO, Gabor , HSU, Yung-Ping
IPC分类号： H04W72/04
CPC分类号： H04W16/225 , G01S3/14 , G01S3/74 , G01S5/0252 , G01S5/06 , G01S5/12 , G01S13/825 , H04B7/0617 , H04B17/318 , H04L5/0048 , H04L5/005 , H04L69/22 , H04W4/02 , H04W4/023 , H04W4/043 , H04W24/10 , H04W64/00 , H04W84/12
摘要： A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.
摘要翻译：提出了一种在无线定位区域网络（WLAN）中的方向搜索（DF）定位的方法。多天线IEEE 802.11发射设备可以同时在多个天线的无线帧中发送包含多个长训练场（LTF）符号的信号前导码，这允许接收设备解析从多个天线发送的多个DF探测信号。结果，可以通过使用来自每个天线的多个分辨的DF探测信号来估计发射装置的出发角（AoD），用于DF定位目的。

6. 发明申请

WO2014209919A1 INCREASED NETWORK THROUGHPUT WITH CCA LEVEL ENHANCEMENT 审中-公开
标题翻译：增加的网络通过CCA级别的增强
公开(公告)号：WO2014209919A1
公开(公告)日：2014-12-31
申请号：PCT/US2014/043744
申请日：2014-06-24
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, James June-Ming , LIU, Jianhan , HSU, Yung-Ping
发明人： WANG, James June-Ming , LIU, Jianhan , HSU, Yung-Ping
IPC分类号： H04J3/16 , H04W24/02
CPC分类号： H04W72/1257 , H04W74/0808
摘要： A method of channel contention procedure with CCA level enhancement is proposed. A wireless device initiates an EDCA channel contention procedure to gain access to the wireless medium. The device determines an intended TX channel width and performs primary channel CCA using a set of CCA levels based on the intended TX channel width for determining channel idle or busy condition in the EDCA procedure. Upon gaining access, the device performs secondary channel CCA and thereby determining a final TX channel width. The device transmits radio signals using the final TX channel width and a TX spectral power density, which is adjusted to be corresponding to the intended TX channel width. By raising CCA levels to be based on the intended transmission channel width, the likelihood of wide channel width transmission is increased. As a result, significant network throughput increase can be accomplished in dense deployment scenarios.
摘要翻译：提出了一种具有CCA级别增强的信道争用过程的方法。无线设备发起EDCA信道争用过程以访问无线介质。设备确定预期的TX信道宽度，并且使用基于预期TX信道宽度的一组CCA级别来执行主信道CCA，以在EDCA过程中确定信道空闲或繁忙状态。在获得访问时，设备执行辅助信道CCA，从而确定最终的TX信道宽度。设备使用最终TX信道宽度和TX频谱功率密度来发射无线电信号，该频谱功率密度被调整为对应于预期的TX信道宽度。通过提高基于预期传输信道宽度的CCA级别，增加宽信道宽度传输的可能性。因此，在密集部署情况下可以实现显着的网络吞吐量增加。

7. 发明申请

WO2015112780A1 ADAPTIVE CCA AND TX POWER LEVEL ADJUSTMENT FOR DENSE DEPLOYMENT OF WIRELESS NETWORKS 审中-公开
标题翻译：自适应CCA和TX功率电平调整用于无线网络的泄漏部署
公开(公告)号：WO2015112780A1
公开(公告)日：2015-07-30
申请号：PCT/US2015/012556
申请日：2015-01-23
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, James June-Ming , LIU, Jianhan , HSU, Yung-Ping , YU, Ching-Hwa
发明人： WANG, James June-Ming , LIU, Jianhan , HSU, Yung-Ping , YU, Ching-Hwa
IPC分类号： G06F11/00
CPC分类号： H04L12/6418 , H04W52/241 , H04W52/242 , H04W52/243 , H04W52/244 , H04W52/247 , H04W52/50
摘要： A method of spatial re-use with TPC and adaptive CCA is proposed. A spatial re-use station detects spatial re-use information associated with other peer OBSS stations. The spatial re-use information includes a TX spectral density (power/Hz) and received signal or interference information of each inter-BSS peer station. The spatial re-use STA determines a TX spectral density based on the detected spatial re-use information. The spatial re-use STA then contends the medium for spatial re-use transmission opportunity (TXOP) with an intra-BSS peer station. Finally, the spatial re-use STA starts spatial re-use frame exchange with the intra-BSS peer station using the determined TX spectral density. By adjusting the TX spectral density, the spatial re-use STA adapts its CCA level to spatially reuse the medium without causing collision and interference to OBSS stations and thus increases network throughput.
摘要翻译：提出了一种利用TPC和自适应CCA进行空间重用的方法。空间重用站检测与其他对等OBSS站相关联的空间重用信息。空间重用信息包括TX频谱密度（功率/ Hz）和每个BSS间对等站的接收信号或干扰信息。空间重用STA基于检测到的空间重用信息确定TX频谱密度。然后，空间重复使用STA将介质用于空间重用传输机会（TXOP）与BSS内对等站。最后，空间重用STA使用确定的TX频谱密度开始与BSS内对等站的空间重用帧交换。通过调整TX频谱密度，空间重用STA适应其CCA级别，空间重用介质，而不会对OBSS站造成冲突和干扰，从而增加网络吞吐量。

8. 发明申请

WO2014116811A1 SECTORIZATION FEEDBACK AND MULTI-SECTOR TRANSMISSION IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中的区域反馈和多业务传输
公开(公告)号：WO2014116811A1
公开(公告)日：2014-07-31
申请号：PCT/US2014/012724
申请日：2014-01-23
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, James, June-ming , LIU, Jianhan , HSU, Yung-ping , YEE, Chih-shi
发明人： WANG, James, June-ming , LIU, Jianhan , HSU, Yung-ping , YEE, Chih-shi
IPC分类号： H04L27/28
CPC分类号： H04L5/0073 , H04B7/0417 , H04B7/0452 , H04B7/0491 , H04B7/063 , H04W4/08 , H04W72/046
摘要： A method of downlink multi-sector transmission is provided. An initiator station first performs sector training by transmitting a plurality of sounding signals to a plurality of responder stations in a wireless network. The coverage associated with the initiator station is partitioned into a plurality of sectors, and each sector is covered by a sectorized beam. The initiator station then receives sector ID feedback information from each responder station in response to the sounding signals. The sector ID feedback information indicates preference to each of the sectors from each responder station. Next, the initiator station groups multiple spatially orthogonal responder stations together based on the sector ID feedback information. Finally, the initiator station performs multi-sector transmission by simultaneously transmitting data to the multiple responder stations in different sectors using corresponding sectorized beams.
摘要翻译：提供了一种下行链路多扇区传输的方法。发起者站首先通过向无线网络中的多个应答者站发送多个探测信号来执行扇区训练。与发起者站相关联的覆盖被划分为多个扇区，并且每个扇区被扇区化的波束覆盖。然后，发起者站响应于探测信号从每个应答器站接收扇区ID反馈信息。扇区ID反馈信息表示对来自每个应答站的每个扇区的偏好。接下来，发起者站基于扇区ID反馈信息将多个空间正交应答站组合在一起。最后，发起者站通过使用相应扇区化的波束同时向不同扇区的多个应答站发送数据来执行多扇区传输。

9. 发明申请

WO2012054699A1 SIMULTANEOUS FEEDBACK SIGNALING FOR DYNAMIC BANDWIDTH SELECTION 审中-公开
标题翻译：用于动态带宽选择的同时反馈信号
公开(公告)号：WO2012054699A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/057041
申请日：2011-10-20
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, James, June-Ming , PONNAMPALAM, Vishakan , LIU, Jianhan , WANG, Chao-Chun , YE, Huanchun
发明人： WANG, James, June-Ming , PONNAMPALAM, Vishakan , LIU, Jianhan , WANG, Chao-Chun , YE, Huanchun
IPC分类号： H04B17/00
CPC分类号： H04B17/309 , H04B17/24
摘要： A method of simultaneously providing channel quality feedback information in all valid sub-channels is provided to facilitate and improve the performance of dynamic transmission bandwidth adjustment and fast link adaptation. A receiving device receives a sounding signal over a wide channel in a wireless system. The sounding signal is transmitted from a transmitting device over multiple sub-channels of the wide channel. The receiving device estimates channel quality information based on the sounding signal for each sub-channel. The channel quality information includes estimated average SNR and recommended MCS and other channel quality metrics. The receiving device transmits a feedback message to the transmitting device. The feedback message contains the estimated channel quality information for all valid sub-channels within the transmission bandwidth. The transmitting device performs dynamic transmission bandwidth selection and fast link adaptation based on the channel quality information for all valid sub-channels.
摘要翻译：提供了一种在所有有效子信道中同时提供信道质量反馈信息的方法，以促进和改进动态传输带宽调整和快速链路自适应的性能。接收设备在无线系统中通过宽频道接收探测信号。探测信号通过宽信道的多个子信道从发送设备发送。接收装置基于每个子信道的探测信号来估计信道质量信息。信道质量信息包括估计的平均SNR和推荐的MCS等信道质量度量。接收装置向发送装置发送反馈消息。反馈消息包含传输带宽内所有有效子信道的估计信道质量信息。发送设备根据所有有效子信道的信道质量信息，执行动态传输带宽选择和快速链路自适应。

10. 发明申请

WO2012054412A1 A METHOD AND SYSTEM FOR SUPPORTING INCOMPATIBLE CHANNELIZATION OF A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：支持无线通信系统不合格通道的方法和系统
公开(公告)号：WO2012054412A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/056607
申请日：2011-10-18
申请人： MEDIATEK SINGAPORE PTE. LTD. , WANG, Chao-Chun , LIU, Jianhan , YEE, Chih-Shi , YE, Huanchun , WANG, James, June-Ming
发明人： WANG, Chao-Chun , LIU, Jianhan , YEE, Chih-Shi , YE, Huanchun , WANG, James, June-Ming
IPC分类号： H04W24/00
CPC分类号： H04W76/20 , H04W28/18 , H04W48/08 , H04W72/00 , H04W72/0453 , H04W76/10 , H04W84/12
摘要： A method of supporting incompatible channelization in a wireless communications system is provided. A coordinating device determines a first set of physical parameters of a first wireless channel. The first set of physical parameters includes a channel bandwidth, a central frequency, a transmit power limit, and a modulation and coding scheme. The coordinating device establishes communication with a first set of communications devices over the first wireless channel. The coordinating device then broadcasts a channel-adjustment message and determines a protection period. The channel-adjustment message comprises a set of instructions on how to adjust to a second set of physical parameters of a second wireless channel. A second set of communications devices adjust physical parameters based on the channel-adjustment message. Finally, the coordinating device communicates with the second set of communications devices over the second wireless channel during the protection period.
摘要翻译：提供了一种在无线通信系统中支持不兼容信道化的方法。协调装置确定第一无线信道的第一组物理参数。第一组物理参数包括信道带宽，中心频率，发射功率限制以及调制和编码方案。协调设备通过第一无线信道与第一组通信设备建立通信。协调装置然后广播信道调整消息并确定保护期。信道调整消息包括关于如何调整到第二无线信道的第二组物理参数的一组指令。第二组通信设备根据信道调整消息调整物理参数。最后，协调装置在保护期间通过第二无线信道与第二组通信装置进行通信。

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