公开(公告)号：US10371783B2

公开(公告)日：2019-08-06

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: G01S5/02 ,  G01S3/74 ,  G01S3/04 ,  G01S3/02 ,  G01S3/46 ,  G01S3/42 ,  G01S3/14 ,  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.

公开(公告)号：US10048349B2

公开(公告)日：2018-08-14

申请号：US14817938

申请日：2015-08-04

Applicant: MEDIATEK INC.

Inventor： James June-Ming Wang ,  Kai-Chun Chou ,  YungPing Hsu

IPC: G01S5/02 ,  G01S3/46 ,  G01S3/04 ,  G01S3/42 ,  G01S3/14 ,  G01S3/74

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.

公开(公告)号：US20160135136A1

公开(公告)日：2016-05-12

申请号：US14937606

申请日：2015-11-10

Applicant: MEDIATEK INC.

Inventor： James June-Ming Wang ,  Ching-Hwa Yu ,  Kai-Chun Chou ,  Chih-Shi Yee

IPC: H04W56/00

CPC classification number: H04W56/001 ,  G01S5/021 ,  G01S5/0221 ,  G01S5/06 ,  G01S5/12 ,  G01S5/14 ,  H04W64/00 ,  H04W84/12 ,  H04W84/18

Abstract: A method of joint position detection by a plurality of known location sensor devices is proposed in an indoor wireless local area network. A tag can query the sensors by sending a request. Timestamps of the query signal are recorded by the sensors. A known location designated sensor responds to the request and triggers a process to correct the clock offsets of other sensors. The timestamps are then corrected based on the clock offsets. The corrected timestamps are then sent to a position processor for determining the tag location.

Abstract translation: 在室内无线局域网中提出了一种通过多个已知位置传感器装置进行联合位置检测的方法。 标签可以通过发送请求来查询传感器。 查询信号的时间戳由传感器记录。 已知的位置指定传感器响应该请求并且触发一个过程来校正其他传感器的时钟偏移。 然后基于时钟偏移校正时间戳。 然后将校正的时间戳发送到用于确定标签位置的位置处理器。

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

IPC: G01S3/74 ,  G01S5/02 ,  G01S1/08 ,  G01S1/04 ,  G01S3/04

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.

公开(公告)号：US09565516B2

公开(公告)日：2017-02-07

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

IPC: H04W4/00 ,  H04W28/22 ,  H04W28/02 ,  H04L12/825

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，发送设备提高/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。

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.

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

IPC: H04W4/00 ,  H04W28/02 ,  H04W28/18

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。

公开(公告)号：US09813189B2

公开(公告)日：2017-11-07

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

IPC: H04L1/00 ,  H04B1/715 ,  H04W4/00 ,  H04W28/02 ,  H04L27/00 ,  H04L5/00

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.

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

IPC: H04L1/00 ,  H04B1/715 ,  H04W4/00

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。

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。