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1. 发明授权

US08392786B2 LDPC coding systems for 60 GHz millimeter wave based physical layer extension 有权
公开(公告)号：US08392786B2
公开(公告)日：2013-03-05
申请号：US12435821
申请日：2009-05-05
申请人： Jason A. Trachewsky , Ba-Zhong Shen , Andrew J. Blanksby , Joonsuk Kim
发明人： Jason A. Trachewsky , Ba-Zhong Shen , Andrew J. Blanksby , Joonsuk Kim
IPC分类号： H03M13/00 , H03M13/03
CPC分类号： H04L1/0041 , H03M13/116 , H03M13/1185 , H03M13/6544 , H03M13/655 , H04L1/005 , H04L1/0057 , H04L1/0065 , H04L1/0071
摘要： LDPC coding systems for 60 GHz millimeter wave based physical layer extension. LDPC (Low Density Parity Check) encoding in cooperation with sub-carrier interleaving, in the context of orthogonal frequency division multiplexing (OFDM), and appropriate symbol mapping is performed in accordance with transmit processing as may be performed within a communication device. In a receiving communication device, receive processing may be performed on a received signal based on the type of LDPC, sub-carrier interleaving, and symbol mapping thereof. The LDPC code employed in accordance with such LDPC encoding may have a partial-tree like structure. In addition, appropriate manipulation of the bits assigned to respective sub-carriers may be performed to ensure that the bits emplaced in the MSB (Most Significant Bit) location of various symbols has some desired diversity (e.g., from different codewords, from appropriately different locations within a given codeword, etc.).

2. 发明申请

US20090282315A1 LDPC coding systems for 60 GHz millimeter wave based physical layer extension 有权
标题翻译：基于60 GHz毫米波的物理层扩展的LDPC编码系统
公开(公告)号：US20090282315A1
公开(公告)日：2009-11-12
申请号：US12435821
申请日：2009-05-05
申请人： Jason A. Trachewsky , Ba-Zhong Shen , Andrew J. Blanksby , Joonsuk Kim
发明人： Jason A. Trachewsky , Ba-Zhong Shen , Andrew J. Blanksby , Joonsuk Kim
IPC分类号： H03M13/29 , H03M13/05 , G06F11/10
CPC分类号： H04L1/0041 , H03M13/116 , H03M13/1185 , H03M13/6544 , H03M13/655 , H04L1/005 , H04L1/0057 , H04L1/0065 , H04L1/0071
摘要： LDPC coding systems for 60 GHz millimeter wave based physical layer extension. LDPC (Low Density Parity Check) encoding in cooperation with sub-carrier interleaving, in the context of orthogonal frequency division multiplexing (OFDM), and appropriate symbol mapping is performed in accordance with transmit processing as may be performed within a communication device. In a receiving communication device, receive processing may be performed on a received signal based on the type of LDPC, sub-carrier interleaving, and symbol mapping thereof. The LDPC code employed in accordance with such LDPC encoding may have a partial-tree like structure. In addition, appropriate manipulation of the bits assigned to respective sub-carriers may be performed to ensure that the bits emplaced in the MSB (Most Significant Bit) location of various symbols has some desired diversity (e.g., from different codewords, from appropriately different locations within a given codeword, etc.).
摘要翻译：基于60 GHz毫米波的物理层扩展的LDPC编码系统。在正交频分复用（OFDM）的上下文中，与子载波交织协作的LDPC（低密度奇偶校验）编码和适当的符号映射是根据通信设备内可能执行的发送处理来执行的。在接收通信设备中，可以基于LDPC的类型，子载波交织及其符号映射对接收到的信号执行接收处理。根据这样的LDPC编码采用的LDPC码可以具有部分树状结构。此外，可以执行对分配给各个子载波的比特的适当的操纵，以确保放置在各种符号的MSB（最高有效位）位置中的比特具有一些期望的分集（例如，从不同的码字，从适当不同的位置在给定码字内等）。

3. 发明申请

US20090285172A1 ASSIGNMENT OF HOLDING PACKETS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：在无线通信网络中分配保管包
公开(公告)号：US20090285172A1
公开(公告)日：2009-11-19
申请号：US12508816
申请日：2009-07-24
申请人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
发明人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
IPC分类号： H04W72/04
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for assigning holding packets in a wireless communication system or network includes determining an invalid station address that corresponds to an invalid station and that does not correspond to the address of an affiliated station. The invalid station address is assigned to a holding packet. The holding packet is transmitted to allocate a transmit period to the invalid station. This generates a quiet time in the wireless communication system or network during the transmit period.
摘要翻译：一种用于在无线通信系统或网络中分配保持分组的方法和装置包括确定对应于无效站并且不对应于附属站的地址的无效站地址。将无效站地址分配给保持分组。发送保持分组以向无效站分配发送周期。这在发送周期期间在无线通信系统或网络中产生安静的时间。

4. 发明授权

US08743994B2 Feedback of channel information in a closed loop beamforming wireless communication system 有权
标题翻译：闭环波束成形无线通信系统中信道信息的反馈
公开(公告)号：US08743994B2
公开(公告)日：2014-06-03
申请号：US13729881
申请日：2012-12-28
申请人： Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
发明人： Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04W80/00
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译：将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。

5. 发明授权

US07583933B2 Dynamic frequency selection in a wireless communication network 失效
标题翻译：无线通信网络中的动态频率选择
公开(公告)号：US07583933B2
公开(公告)日：2009-09-01
申请号：US11595363
申请日：2006-11-09
申请人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
发明人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
IPC分类号： H04B17/00 , H04W72/00
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
摘要翻译：一种用于在无线通信系统或网络中进行动态频率选择的方法和装置包括当接入点确定由接入点正在使用的无线信道上的干扰时开始的处理。当干扰超过干扰阈值时，接入点向由接入点为信道频谱信息服务的附属站提供请求分组。处理继续，因为附属站产生关于无线通信网络中的每个无线信道的信道频谱信息。然后，处理继续，随着附属站经由当前无线信道向接入点提供信道频谱信息。接入点解释信道频谱信息以确定无线通信网络内的多个无线信道的期望的无线信道。接入点然后经由当前无线信道向附属站提供选择分组，以指示接入点将在特定的未来时间开始使用期望的无线信道。

6. 发明授权

US07158759B2 Dynamic frequency selection in a wireless communication network 有权
公开(公告)号：US07158759B2
公开(公告)日：2007-01-02
申请号：US10011004
申请日：2001-12-03
申请人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
发明人： Christopher J. Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason A. Trachewsky
IPC分类号： H04B17/00 , H04Q7/30 , H04Q7/32 , H04Q7/34 , H04Q7/00
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.

7. 发明授权

US08345732B2 Feedback of channel information in a closed loop beamforming wireless communication system 有权
标题翻译：闭环波束成形无线通信系统中信道信息的反馈
公开(公告)号：US08345732B2
公开(公告)日：2013-01-01
申请号：US11412388
申请日：2006-04-27
申请人： Matthew James Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
发明人： Matthew James Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04L5/16
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译：将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。接收无线设备基于前导序列来估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。

8. 发明申请

US20130129000A1 Feedback of Channel Information in a Closed Loop Beamforming Wireless Communication System 有权
标题翻译：闭环波束形成无线通信系统中信道信息的反馈
公开(公告)号：US20130129000A1
公开(公告)日：2013-05-23
申请号：US13729881
申请日：2012-12-28
申请人： Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
发明人： Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04W80/00
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译：将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。

9. 发明授权

US09379858B2 Transmission coordination within multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：多用户，多路访问和/或MIMO无线通信中的传输协调
公开(公告)号：US09379858B2
公开(公告)日：2016-06-28
申请号：US12794712
申请日：2010-06-04
申请人： Vinko Erceg , Joseph Paul Lauer , Matthew James Fischer , Peiman Amini , Joonsuk Kim
发明人： Vinko Erceg , Joseph Paul Lauer , Matthew James Fischer , Peiman Amini , Joonsuk Kim
IPC分类号： H04W40/00 , H04L5/00 , H04B7/02 , H04L1/00 , H04L1/06 , H04L1/16 , H04W88/02
CPC分类号： H04W72/0453 , H04L1/0009 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/0618 , H04L1/1607 , H04L5/0023 , H04L27/2602 , H04W88/02
摘要： Transmission coordination within multiple user, multiple access, and/or MIMO wireless communications. Within wireless communication systems, there can be various wireless communication devices therein that are not all compliant with a common capability set, communication protocol, communication standard, recommended practice, etc. For example, some communication systems may have some wireless communication devices characterized as ‘legacy’ wireless communication devices, and other wireless communication devices therein may be newer and compliant with newer capability sets, communication protocols, communication standards, recommended practices, etc. In such instances, coordination of transmissions among the various wireless communication devices may be made, when performing simultaneous transmissions, by ensuring that transmissions of devices on different channels is made when aligned on a common boundary of an OFDM symbol. Alternatively, such simultaneous transmissions may be made when offset by some multiple of OFDM symbol duration. When performing non-simultaneous transmissions, transmissions may be made based on channel availability.
摘要翻译：多用户，多路访问和/或MIMO无线通信中的传输协调。在无线通信系统中，其中可以有各种各样的无线通信设备，它们都不符合公共能力集，通信协议，通信标准，推荐做法等。例如，一些通信系统可以具有一些无线通信设备，传统“无线通信设备和其他无线通信设备可能更新，并且符合更新的能力集，通信协议，通信标准，推荐做法等。在这种情况下，可以进行各种无线通信设备之间的传输协调，当执行同时传输时，通过确保在OFDM符号的公共边界上对准时不同信道上的设备的传输。或者，当偏移OFDM符号持续时间的某个倍数时，可以进行这种同时传输。当执行非同时传输时，可以基于信道可用性进行传输。

10. 发明授权

US08346262B2 Method and system for utilizing tone grouping with givens rotations to reduce overhead associated with explicit feedback information 有权
标题翻译：利用旋转旋转进行音调分组以减少与显式反馈信息相关的开销的方法和系统
公开(公告)号：US08346262B2
公开(公告)日：2013-01-01
申请号：US13535024
申请日：2012-06-27
申请人： Joonsuk Kim
发明人： Joonsuk Kim
IPC分类号： H04W36/00 , H04W40/00
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/043 , H04B7/0634 , H04B7/0639 , H04L27/2626 , H04L27/2647
摘要： Aspects of a method and system for utilizing tone grouping with Givens rotations to reduce overhead associated with explicit feedback information are presented. In one aspect of the invention, Givens matrices may be utilized to reduce a quantity of information communicated in explicit feedback information via an uplink RF channel. The explicit feedback information may include specifications for a feedback beamforming matrix that may be utilized when transmitting signals via a corresponding downlink RF channel. The feedback beamforming matrix may represent a rotated version of an un-rotated matrix. The Givens matrices may be utilized to apply one or more Givens rotations to un-rotated matrix. The rotated matrix may reduce the quantity of information communicated in the explicit feedback information. The quantity of information communicated in the explicit feedback information may be further reduced by utilizing tone grouping.
摘要翻译：提出了利用Givens旋转利用音调分组以减少与显式反馈信息相关的开销的方法和系统的方面。在本发明的一个方面，可以利用Givens矩阵来经由上行链路RF信道来减少在显式反馈信息中传送的信息量。显式反馈信息可以包括当经由相应的下行链路RF信道发送信号时可以使用的反馈波束成形矩阵的规范。反馈波束形成矩阵可以表示未旋转矩阵的旋转版本。 Givens矩阵可以用于将一个或多个Givens旋转应用于未旋转的矩阵。旋转的矩阵可以减少在显式反馈信息中传达的信息的数量。可以通过利用音调分组来进一步减少在显式反馈信息中传送的信息量。

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