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1. 发明授权

US09130727B2 Control mode PHY for WLAN 有权
标题翻译： WLAN的控制模式PHY
公开(公告)号：US09130727B2
公开(公告)日：2015-09-08
申请号：US13366064
申请日：2012-02-03
申请人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
发明人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
IPC分类号： H04L27/00 , H04J11/00 , H03M13/23 , H04L1/00 , H04L27/26 , H04L1/08
CPC分类号： H04L27/2602 , H03M13/23 , H04L1/0046 , H04L1/0065 , H04L1/0072 , H04L1/08 , H04L27/2613 , H04L27/265
摘要： In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, information bits to be included in the PHY data unit are encoded using a forward error correction (FEC) encoder. The information bits are mapped to a constellation symbols. Additionally, either the information bits are encoded according to a block coding scheme, or the constellation symbols are encoded according to the block coding scheme. Orthogonal frequency division multiplexing (OFDM) symbols are generated to include the constellation symbols and the PHY data unit is generated to include the OFDM symbols.
摘要翻译：在通过通信信道生成用于发送的物理层（PHY）数据单元的方法中，使用前向纠错（FEC）编码器对要包括在PHY数据单元中的信息比特进行编码。信息位被映射到星座符号。另外，根据块编码方案对信息比特进行编码，或者根据块编码方案对星座符号进行编码。生成正交频分复用（OFDM）符号以包括星座符号，并且生成PHY数据单元以包括OFDM符号。

2. 发明授权

US08885740B2 Control mode PHY for WLAN 有权
标题翻译： WLAN的控制模式PHY
公开(公告)号：US08885740B2
公开(公告)日：2014-11-11
申请号：US13366038
申请日：2012-02-03
申请人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
发明人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
IPC分类号： H04K1/10 , H04L1/00 , H04L27/26 , H04L1/08
CPC分类号： H04L27/2602 , H03M13/23 , H04L1/0046 , H04L1/0065 , H04L1/0072 , H04L1/08 , H04L27/2613 , H04L27/265
摘要： A first preamble for a first data unit includes a first long training field and a first signal field modulated according to a first technique. The first data unit is generated according to a first data unit format and includes the first preamble. A second preamble, generated for a second data unit, includes a second signal field and a second long training field. Information in the second signal field is repeated and/or the second long training field is generated so that a duration of the second long training field is longer than a duration of the first long training field. A portion of the second signal field is modulated according to a second technique or a portion of the second long training field is modulated according to the second technique to signal to a receiver that the second data unit is formatted according to a second data unit format.
摘要翻译：第一数据单元的第一前同步码包括第一长训练场和根据第一技术调制的第一信号场。第一数据单元根据第一数据单元格式生成并包括第一前导码。为第二数据单元生成的第二前导码包括第二信号字段和第二长训练字段。重复第二信号字段中的信息和/或生成第二长训练场，使得第二长训练场的持续时间长于第一长训练场的持续时间。根据第二技术调制第二信号场的一部分，或根据第二技术对第二长训练场的一部分进行调制，以向接收机发信号，根据第二数据单元格式对第二数据单元进行格式化。

3. 发明申请

US20120320889A1 LOW BANDWIDTH PHY FOR WLAN 有权
标题翻译： WLAN的低带宽PHY
公开(公告)号：US20120320889A1
公开(公告)日：2012-12-20
申请号：US13494515
申请日：2012-06-12
申请人： Hongyuan Zhang , Raja Banerjea , Sudhir Srinivasa
发明人： Hongyuan Zhang , Raja Banerjea , Sudhir Srinivasa
IPC分类号： H04W84/12
CPC分类号： H04L1/004 , H04L1/0025 , H04L1/0043 , H04L1/0057 , H04L1/0061 , H04L1/08 , H04L7/048 , H04L27/2602 , H04L27/2613
摘要： A method includes generating first and second preambles for first and second data units corresponding to first and second PHY modes, respectively. Generating the first preamble includes generating a first STF, LTF, and SIG field. The first SIG field includes an OFDM symbol modulated according to a first modulation technique. The OFDM symbol begins a first time interval, and ends a second time interval, after the first LTF begins. Generating the second preamble includes generating a second STF and LTF. The second STF has a greater duration, and different repeating sequence, than the first STF. The second LTF includes a second OFDM symbol modulated according to a second modulation technique, and at least partially occupying a location beginning a third time interval, and ending a fourth time interval, after the second LTF begins. The third and fourth time intervals are equal to the first and second time intervals, respectively.
摘要翻译：一种方法包括分别为对应于第一和第二PHY模式的第一和第二数据单元生成第一和第二前导码。生成第一前同步码包括生成第一STF，LTF和SIG字段。第一SIG字段包括根据第一调制技术调制的OFDM符号。 OFDM符号开始第一时间间隔，并且在第一LTF开始之后结束第二时间间隔。生成第二前导码包括生成第二STF和LTF。第二STF具有比第一STF更长的持续时间和不同的重复序列。第二LTF包括根据第二调制技术调制的第二OFDM符号，并且至少部分地占据从第三时间间隔开始的位置，并且在第二LTF开始之后结束第四时间间隔。第三和第四时间间隔分别等于第一和第二时间间隔。

4. 发明申请

US20120201315A1 Control Mode PHY for WLAN 有权
标题翻译： WLAN的控制模式PHY
公开(公告)号：US20120201315A1
公开(公告)日：2012-08-09
申请号：US13366038
申请日：2012-02-03
申请人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
发明人： Hongyuan Zhang , Rohit U. Nabar , Raja Banerjea , Yong Liu , Sudhir Srinivasa , Hyukjoon Kwon
IPC分类号： H04L27/00 , H04W84/02 , H04L27/28
CPC分类号： H04L27/2602 , H03M13/23 , H04L1/0046 , H04L1/0065 , H04L1/0072 , H04L1/08 , H04L27/2613 , H04L27/265
摘要： A first preamble for a first data unit includes a first long training field and a first signal field modulated according to a first technique. The first data unit is generated according to a first data unit format and includes the first preamble. A second preamble, generated for a second data unit, includes a second signal field and a second long training field. Information in the second signal field is repeated and/or the second long training field is generated so that a duration of the second long training field is longer than a duration of the first long training field. A portion of the second signal field is modulated according to a second technique or a portion of the second long training field is modulated according to the second technique to signal to a receiver that the second data unit is formatted according to a second data unit format.
摘要翻译：第一数据单元的第一前同步码包括第一长训练场和根据第一技术调制的第一信号场。第一数据单元根据第一数据单元格式生成并包括第一前导码。为第二数据单元生成的第二前导码包括第二信号字段和第二长训练字段。重复第二信号字段中的信息和/或生成第二长训练场，使得第二长训练场的持续时间长于第一长训练场的持续时间。根据第二技术调制第二信号场的一部分，或根据第二技术对第二长训练场的一部分进行调制，以向接收机发信号，根据第二数据单元格式对第二数据单元进行格式化。

5. 发明申请

US20120087426A1 COMPRESSED FEEDBACK FORMAT FOR WLAN 有权
标题翻译：压缩反馈格式的WLAN
公开(公告)号：US20120087426A1
公开(公告)日：2012-04-12
申请号：US13252710
申请日：2011-10-04
申请人： Hongyuan Zhang , Sudhir Srinivasa , Hyukjoon Kwon , Raja Banerjea
发明人： Hongyuan Zhang , Sudhir Srinivasa , Hyukjoon Kwon , Raja Banerjea
IPC分类号： H04L27/28
CPC分类号： H04L27/2646 , H04B7/0617 , H04B7/066 , H04L1/06 , H04L1/0618 , H04L1/0693 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04L25/0204 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03808 , H04W24/10
摘要： In a method for transmitting channel feedback data from a receiver to a transmitter, channel data for a plurality of orthogonal frequency division multiplexing (OFDM) tones for one or more spatial streams corresponding to a communication channel is determined. A plurality of angle values associated with the one or more spatial streams and one or more OFDM tones is determined. For each of the one or more spatial streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging the signal to noise ratio (SNR) values. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR. The feedback report is included in a data unit to be transmitted from the receiver to the transmitter.
摘要翻译：在从接收机向发射机发送信道反馈数据的方法中，确定用于与通信信道对应的一个或多个空间流的多个正交频分复用（OFDM）音调的信道数据。确定与一个或多个空间流和一个或多个OFDM音调相关联的多个角度值。对于一个或多个空间流中的每一个，确定与一个或多个OFDM音调相关联的每音调信噪比（PT-SNR），并且通过将平均信噪比（avg-SNR）平均化来确定平均信噪比信噪比（SNR）值。生成反馈报告至少包括i）多个角度值，ii）PT-SNR，以及iii）平均SNR。反馈报告被包括在要从接收机发射到发射机的数据单元中。

6. 发明申请

US20110128947A1 Method and Apparatus for Sounding Multiple Stations 有权
标题翻译：多站监测方法与装置
公开(公告)号：US20110128947A1
公开(公告)日：2011-06-02
申请号：US12959079
申请日：2010-12-02
申请人： Yong Liu , Hongyuan Zhang , Raja Banerjea , Harish Ramamurthy , Sudhir Srinivasa
发明人： Yong Liu , Hongyuan Zhang , Raja Banerjea , Harish Ramamurthy , Sudhir Srinivasa
IPC分类号： H04W84/12
CPC分类号： H04L25/03343 , H04L25/0204 , H04L25/0228 , H04L2025/03426 , H04L2025/03802
摘要： A plurality of stations to provide sounding feedback in response to a training signal sequence is determined, and a communication frame is generated that includes i) an indication of a request for the plurality of stations to provide sounding feedback corresponding to the training signal sequence, and ii) information indicative of when each of the plurality of stations should transmit sounding feedback, and iii) sounding feedback parameters. The communication frame is transmitted along with the training sequence.
摘要翻译：确定响应于训练信号序列提供探测反馈的多个站，并且生成通信帧，该通信帧包括i）对多个站提供对应于训练信号序列的探测反馈的请求的指示，以及 ii）指示多个站中的每个站应何时发送探测反馈的信息，以及iii）发声反馈参数。通信帧与训练序列一起传输。

7. 发明申请

US20100260159A1 PHYSICAL LAYER FRAME FORMAT FOR WLAN 有权
标题翻译： WLAN的物理层框架格式
公开(公告)号：US20100260159A1
公开(公告)日：2010-10-14
申请号：US12758603
申请日：2010-04-12
申请人： Hongyuan Zhang , Hui-Ling Lou , Rohit U. Nabar , Sudhir Srinivasa , Mao Yu , Raja Banerjea
发明人： Hongyuan Zhang , Hui-Ling Lou , Rohit U. Nabar , Sudhir Srinivasa , Mao Yu , Raja Banerjea
IPC分类号： H04W4/00
CPC分类号： H04L1/0079 , H04L1/0072 , H04L1/009 , H04L27/2613 , H04L69/18 , H04W28/06 , H04W84/12 , H04W99/00
摘要： In a method for generating a data unit for transmission via a communication channel, wherein the data unit conforms to a first communication protocol, a preamble of the data unit is generated. The preamble includes a first field having information that indicates a duration of the data unit, the first field being formatted such that the first field is decodable by a receiver device that conforms to a second communication protocol but does not conform to the first communication protocol to determine the duration of the data unit based on the first field. Additionally, the preamble is formatted such that a portion of the preamble is decodable by a receiver device that conforms to a third communication protocol but does not conform to the first communication protocol. Also, the preamble is formatted such that a receiver device that conforms to the first communication protocol can determine that the data unit conforms to the first communication protocol. A data portion of the data unit that conforms to the first communication protocol and does not conform to either (i) the second communication protocol or (ii) the third communication protocol is generated.
摘要翻译：在通过通信信道生成用于发送的数据单元的方法中，其中数据单元符合第一通信协议，生成数据单元的前同步码。前导码包括具有指示数据单元的持续时间的信息的第一字段，第一字段被格式化，使得第一字段可由符合第二通信协议但不符合第一通信协议的接收机设备解码，基于第一个字段确定数据单元的持续时间。另外，前导码被格式化，使得前导码的一部分可以由符合第三通信协议但不符合第一通信协议的接收机设备解码。此外，前导码格式化使得符合第一通信协议的接收机设备可以确定数据单元符合第一通信协议。产生符合第一通信协议并且不符合（i）第二通信协议或（ii）第三通信协议的数据单元的数据部分。

8. 发明授权

US09078169B2 Signal field design for WLAN 有权
标题翻译： WLAN的信号场设计
公开(公告)号：US09078169B2
公开(公告)日：2015-07-07
申请号：US13587681
申请日：2012-08-16
申请人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Sudhir Srinivasa
发明人： Hongyuan Zhang , Raja Banerjea , Yong Liu , Sudhir Srinivasa
IPC分类号： H04L29/02 , H04W28/18 , H04L29/06 , H04L29/08 , H04W84/12
CPC分类号： H04W28/18 , H04L69/22 , H04L69/323 , H04W84/12
摘要： A method of generating packets for transmission in a wireless communication system, wherein each packet includes a SIG field that includes a first SIG subfield, includes generating a data packet and a null data packet. Generating the data packet includes generating information bits of the first SIG subfield of the data packet and generating the data portion of the data packet. The information bits of the first SIG subfield of the data packet indicate, to a receiving device, a length corresponding to a data portion of the data packet. Generating the null data packet includes generating information bits of the first SIG subfield of the null data packet. The information bits of the first SIG subfield of the null data packet indicate, to a receiving device, a first physical layer (PHY) parameter value associated with the null data packet. The first PHY parameter value is not a length value.
摘要翻译：一种在无线通信系统中生成用于发送的分组的方法，其中每个分组包括包括第一SIG子字段的SIG字段，包括生成数据分组和空数据分组。产生数据分组包括生成数据分组的第一SIG子字段的信息比特并生成数据分组的数据部分。数据分组的第一SIG子字段的信息比特向接收设备指示对应于数据分组的数据部分的长度。生成空数据分组包括产生空数据分组的第一SIG子字段的信息比特。空数据分组的第一SIG子字段的信息位向接收设备指示与空数据分组相关联的第一物理层（PHY）参数值。第一个PHY参数值不是长度值。

9. 发明授权

US08902869B2 Low bandwidth PHY for WLAN 有权
标题翻译： WLAN的低带宽PHY
公开(公告)号：US08902869B2
公开(公告)日：2014-12-02
申请号：US13494527
申请日：2012-06-12
申请人： Hongyuan Zhang , Raja Banerjea , Sudhir Srinivasa
发明人： Hongyuan Zhang , Raja Banerjea , Sudhir Srinivasa
IPC分类号： H04W84/12 , H04L1/00 , H04L27/26 , H04L1/08
CPC分类号： H04L1/004 , H04L1/0025 , H04L1/0043 , H04L1/0057 , H04L1/0061 , H04L1/08 , H04L7/048 , H04L27/2602 , H04L27/2613
摘要： A method, in a communication system utilizing channels for transmitting first PHY mode data units, includes generating first and second data units conforming to first and second PHY modes, respectively, causing the first data unit to be transmitted via a channel, determining a frequency band for transmitting the second data unit, and causing the second data unit to be transmitted via the frequency band. Generating the first and second data units includes generating first and second series of OFDM symbols, respectively. At least a portion of the second OFDM symbols includes more upper-edge than lower-edge guard tones, or vice versa. The frequency band has a bandwidth equal to the channel bandwidth divided by n≧2, and either a lowest or highest sub-band of one or more channels is excluded from the frequency band when the second OFDM symbols include more upper-edge or more lower-edge guard tones, respectively.
摘要翻译：一种在利用用于发送第一PHY模式数据单元的信道的通信系统中的方法，包括分别产生符合第一和第二PHY模式的第一和第二数据单元，使得经由信道发送第一数据单元，确定频带用于发送第二数据单元，并且使第二数据单元经由频带发送。生成第一和第二数据单元包括分别产生第一和第二系列OFDM符号。第二OFDM符号的至少一部分包括比下边缘保护音更多的上边缘，反之亦然。频带具有等于信道带宽除以n≥2的带宽，并且当第二OFDM符号包括更多的上边缘或更低的边缘时，从频带中排除一个或多个信道的最低或最高子带 - 保护音，分别。

10. 发明申请

US20130259017A1 Physical Layer Frame Format for WLAN 有权
标题翻译： WLAN的物理层帧格式
公开(公告)号：US20130259017A1
公开(公告)日：2013-10-03
申请号：US13856277
申请日：2013-04-03
申请人： Hongyuan Zhang , Sudhir Srinivasa , Rohit U. Nabar , Raja Banerjea
发明人： Hongyuan Zhang , Sudhir Srinivasa , Rohit U. Nabar , Raja Banerjea
IPC分类号： H04W84/02
CPC分类号： H04L1/009 , H03M13/098 , H03M13/655 , H04L1/0041 , H04L1/0061 , H04L1/0072 , H04L1/0079 , H04L5/0007 , H04W84/02
摘要： In a method for generating a data unit conforming to a first communication protocol, a first field and a second field to be included in a preamble of the data unit are generated. The first field includes a first set of one or more information bits that indicate a duration of the data unit and is formatted such that the first field allows a receiver device that conforms to a second communication protocol to determine the duration of the data unit. The second field includes a second set of one or more information bits that indicate to a receiver device that conforms to the first communication protocol that the data unit conforms to the first communication protocol. The first field and the second field are modulated using a modulation scheme specified for a field corresponding to the first field and the second field, respectively, by the second communication protocol.
摘要翻译：在用于生成符合第一通信协议的数据单元的方法中，生成要包括在数据单元的前导码中的第一字段和第二字段。第一字段包括指示数据单元的持续时间并且被格式化的一个或多个信息比特的第一组，使得第一场允许符合第二通信协议的接收机设备确定数据单元的持续时间。第二字段包括一个或多个信息比特的第二组，其向符合第一通信协议的接收机设备指示数据单元符合第一通信协议。通过第二通信协议，分别使用针对对应于第一场和第二场的场指定的调制方案来调制第一场和第二场。

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