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21.发明申请Rate Indication and Link Adaptation for Variable Data Rates in Long Range Wireless Networks 有权长距离无线网络中可变数据速率的速率指示和链路适配公开(公告)号：US20160142177A1
公开(公告)日：2016-05-19
申请号：US14874357
申请日：2015-10-02
Applicant: Mediatek Inc.
Inventor： Kai-Chun Chou , James June-Ming Wang , Li-Chun Ko , Ching-Hwa Yu
CPC classification number: H04L1/0005 , H04B1/715 , H04L1/0011 , H04L1/0028 , H04L1/0035 , H04L1/0059 , H04L5/0064 , H04L27/0008 , H04W4/80 , H04W28/0205 , Y02D70/144
Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A data packet comprises a preamble, a first packet portion including a rate indication field, and a second packet portion including a PDU. The first packet portion is encoded using a first modulation and coding scheme with a first rate while the second packet portion is encoded using a second modulation and coding scheme with a second rate indicated by the RI field. A transmitter thus can use different MCS options to support variable data rates by adapting to channel conditions, and then uses the novel RI field to indicate the data rate to a receiver dynamically. As a result, fast link adaptation can be achieved for different applications with different rate requirements, to provide higher data rate, reduce connection time, lower power consumption, and improve link quality.
Abstract translation: 提供了一种用于蓝牙远程无线网络的快速链路适配方法。 数据分组包括前导码，包括速率指示字段的第一分组部分和包括PDU的第二分组部分。 使用具有第一速率的第一调制和编码方案对第一分组部分进行编码，而使用由RI字段指示的第二速率的第二调制和编码方案对第二分组部分进行编码。 因此，发射机可以使用不同的MCS选项来通过适应信道条件来支持可变数据速率，然后使用新颖的RI字段来动态地向接收机指示数据速率。 因此，可以针对不同速率要求的不同应用实现快速链路自适应，提供更高的数据速率，减少连接时间，降低功耗，提高链路质量。
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公开(公告)号：US20160047885A1
公开(公告)日：2016-02-18
申请号：US14828679
申请日：2015-08-18
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Kai-Chun Chou , Ching-Hwa Yu , Hsuan-Yu Liu
IPC: G01S5/06
CPC classification number: G01S3/74 , G01S1/042 , G01S1/08 , G01S3/043 , G01S3/14 , G01S3/42 , G01S3/46 , G01S5/02 , G01S5/0284
Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.
Abstract translation: 提出了一种基于无线通信网络中简化天线平台格式的方向查找（DF）定位方法。 接收机接收具有多个天线元件的发射机的天线平台格式信息。 天线平台格式信息包括天线平台格式指示符，天线平台位置和方向信息，多个天线元件以及每个天线元件的开关延迟，相位中心和极化信息。 接收机经由多个天线元件接收从发射机发送的多个方向发声探测信号。 接收机基于多个DF探测信号和天线平台格式信息执行DF算法，从而估计DF解。 最后，接收机根据估计的DF解决方案确定其自己的位置信息。
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公开(公告)号：US20160033614A1
公开(公告)日：2016-02-04
申请号：US14817938
申请日：2015-08-04
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Kai-Chun Chou , YungPing Hsu
Abstract: A method of direction finding (DF) positioning involving main lobe and grating lobe identification in a wireless communication network is proposed. A receiver performs DF algorithm on radio signals associated with multiple antennas over a first channel frequency and estimates a first set of DF solutions. The receiver performs DF algorithm on radio signals associated with multiple antennas over a second channel frequency and estimates a second set of DF solutions. The receiver then identifies the correct DF solution (e.g., the main lobe direction) by comparing the first set of DF solutions and the second set of DF solutions.
Abstract translation: 提出了一种在无线通信网络中涉及主瓣和光栅识别的方向查找（DF）定位方法。 接收机对与第一信道频率上的多个天线相关联的无线电信号执行DF算法，并估计第一组DF解。 接收机在第二信道频率上对与多个天线相关联的无线电信号执行DF算法，并估计第二组DF解。 然后，接收机通过比较DF溶液的第一组和第二组DF溶液来识别正确的DF溶液（例如，主瓣方向）。
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公开(公告)号：US11119181B2
公开(公告)日：2021-09-14
申请号：US16452387
申请日：2019-06-25
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Kai-Chun Chou , Ching-Hwa Yu , Hsuan-Yu Liu
IPC: G01S5/02 , G01S3/74 , G01S3/04 , G01S3/02 , G01S3/46 , G01S3/42 , G01S3/14 , G01S1/08 , G01S1/04 , G01S5/12
Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.
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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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Patent Agency Ranking
公开(公告)号：US10548166B2
公开(公告)日：2020-01-28
申请号：US16127572
申请日：2018-09-11
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Ching-Hwa Yu , Yuh-Ren Jauh , Chih-Shi Yee
Abstract: A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.
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公开(公告)号：US20160073220A1
公开(公告)日：2016-03-10
申请号：US14848108
申请日：2015-09-08
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Kai-Chun Chou , Li-Chun Ko , Ching-Hwa Yu , YungPing Hsu , Chih-Shi Yee
CPC classification number: H04W4/008 , H04L47/26 , H04W4/80 , H04W28/0236 , H04W28/22
Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A novel rate indication (RI) field is incorporated in a data packet to enable auto detection of rate adaptation at the receiver side. The data packet comprises a preamble, a first packet portion including the RI field, and a second packet portion including the PDU. The first packet portion is encoded with a first rate while the second packet portion is encoded with a second rate indicated by the RI field. The transmitting device raise/lower the encoding rate when the link quality is good/poor. The receiving device can provide recommended rate or link quality feedback information via an LMP message to help the transmitting device making rate adaptation decision. The transmitter can unilaterally decide the data rate for the second packet portion without receiver recommendation.
Abstract translation: 提供了一种用于蓝牙远程无线网络的快速链路适配方法。 新的速率指示（RI）字段被并入数据分组中，以便能够在接收机侧自动检测速率自适应。 数据分组包括前导码，包括RI字段的第一分组部分和包括该PDU的第二分组部分。 第一分组部分以第一速率编码，而第二分组部分由RI字段指示的第二速率编码。 当链路质量好/差时，发送装置提高/降低编码率。 接收设备可以通过LMP消息提供推荐的速率或链路质量反馈信息，以帮助发送设备进行速率适配决策。 发射机可以在没有接收机推荐的情况下单方面地决定第二分组部分的数据速率。
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公开(公告)号：US11019559B2
公开(公告)日：2021-05-25
申请号：US15372983
申请日：2016-12-08
Applicant: MEDIATEK INC.
Inventor： Tianyu Wu , Chao-Chun Wang , Chien-Fang Hsu , James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr.
Abstract: A method of very high throughput (VHT) operation information subfields design for IEEE 802.11 WLAN is proposed. The VHT operation information subfields comprise a channel width, a channel center frequency segment 0 (CCFS0), and a channel center frequency segment 1 (CCFS1). Multiple definitions of the VHT operation information subfields have been adopted by different access points (AP)s and wireless stations (STAs). In accordance with one novel aspect, upon receiving the VHT operation information element broadcasted by an AP, an STA will first check the channel width indicated by the AP. The STA then follows different definitions under different channel widths. Under such method, the STA can support up to 160 MHz operation mode with APs following different definitions and operating up to 160 MHz mode.
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公开(公告)号：US20190310341A1
公开(公告)日：2019-10-10
申请号：US16452387
申请日：2019-06-25
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Kai-Chun Chou , Ching-Hwa Yu , Hsuan-Yu Liu
Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.
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公开(公告)号：US20190029037A1
公开(公告)日：2019-01-24
申请号：US16127572
申请日：2018-09-11
Applicant: MEDIATEK INC.
Inventor： James June-Ming Wang , Ching-Hwa Yu , Yuh-Ren Jauh , Chih-Shi Yee
CPC classification number: H04W74/004 , H04W56/0005 , H04W72/042 , H04W72/121 , H04W74/00 , H04W74/06 , H04W74/0833 , H04W84/12
Abstract: A method of STA-initiated uplink (UL) aggregation is proposed in a wireless communication system. Under the STA-initiated UL aggregation, an STA can gain access to the medium through contention and after winning the TXOP, it passes the TXOP ownership to its AP to allow it to trigger UL MU transmission. Thus, the AP has increased chance of utilizing the medium while maintains fairness to both legacy APs and STAs. In addition, once AP takes over ownership of the TXOP, if it detects idle secondary channels, it can enable UL aggregation over the idle secondary channels, thereby fully utilizing the entire system bandwidth.
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