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1. 发明授权

US09178651B2 Stream parsing in a communication system 有权
标题翻译：在通信系统中进行流解析
公开(公告)号：US09178651B2
公开(公告)日：2015-11-03
申请号：US13231670
申请日：2011-09-13
申请人： Sudhir Srinivasa , Hongyuan Zhang
发明人： Sudhir Srinivasa , Hongyuan Zhang
IPC分类号： H04L1/00 , H04L1/06
CPC分类号： H04L1/0033 , H04L1/0041 , H04L1/06
摘要： In a method for parsing data in a data unit into a number of spatial streams, a modulation and coding scheme (MCS) is selected from a plurality of MCSs. Information bits are encoded using one or more encoders to generate coded bits, wherein the number of encoders used depends on the selected MCS. The coded bits into a number of spatial streams according to a first set of parsing rules if the coded bits satisfy a parsing constraint. The coded bits are parsed into the number of spatial streams according to a second set of parsing rules if the coded bits do not satisfy the parsing constraint.
摘要翻译：在将数据单元中的数据解析为多个空间流的方法中，从多个MCS中选择调制和编码方案（MCS）。使用一个或多个编码器对信息比特进行编码以产生编码比特，其中使用的编码器数量取决于所选择的MCS。如果编码比特满足解析约束，则根据第一组解析规则将编码比特转换成多个空间流。如果编码比特不满足解析约束，则编码比特根据第二组解析规则解析为空间流数。

2. 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。

3. 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。

4. 发明授权

US08724720B2 Methods and apparatus for WLAN transmission 有权
标题翻译： WLAN传输的方法和装置
公开(公告)号：US08724720B2
公开(公告)日：2014-05-13
申请号：US12846681
申请日：2010-07-29
申请人： Sudhir Srinivasa , Hongyuan Zhang , Rohit U. Nabar
发明人： Sudhir Srinivasa , Hongyuan Zhang , Rohit U. Nabar
IPC分类号： H04L27/28
CPC分类号： H04L1/0005 , H04L1/0016 , H04L27/2607 , H04L27/2608 , H04L27/34 , H04W84/12
摘要： In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, a first set of modulation coding schemes (MCSs) and a second set of MCSs that correspond to a number of spatial streams and a number of encoders are provided. The first set of MCSs correspond to a first channel bandwidth and the second set of MCSs correspond to a second channel bandwidth, and the first set of MCSs is different than the second set of MCSs. An MCS is selected from the first set of MCSs when the PHY data unit is to be transmitted using a channel having the first channel bandwidth, and the MCS is selected from the second set of MCSs when the PHY data unit is to be transmitted using a channel having the second channel bandwidth. Information bits are encoded using the number of encoders and according to the selected MCS, and the encoded information bits are parsed into the number of spatial streams. The encoded information bits are modulated according to the MCS, and a plurality of OFDM symbols are formed based on the modulated encoded information bits.
摘要翻译：在用于生成经由通信信道进行传输的物理层（PHY）数据单元的方法中，与多个空间流和多个编码器相对应的第一组调制编码方案（MCS）和第二组MCS相对应，提供。第一组MCS对应于第一信道带宽，并且第二组MCS对应于第二信道带宽，并且第一组MCS不同于第二组MCS。当要使用具有第一信道带宽的信道来发送PHY数据单元时，从第一组MCS中选择MCS，并且当使用第一组MCS发送PHY数据单元时，从第二组MCS中选择MCS 信道具有第二信道带宽。使用编码器的数量并根据所选择的MCS对信息比特进行编码，并将编码的信息比特解析为空间流的数量。编码信息比特根据MCS进行调制，并且基于调制编码信息比特形成多个OFDM符号。

5. 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。

6. 发明授权

US08395997B2 Multi-channel wireless communications 有权
标题翻译：多通道无线通信
公开(公告)号：US08395997B2
公开(公告)日：2013-03-12
申请号：US12945805
申请日：2010-11-12
申请人： Raja Banerjea , Yong Liu , Hongyuan Zhang , Harish Ramamurthy , Sudhir Srinivasa
发明人： Raja Banerjea , Yong Liu , Hongyuan Zhang , Harish Ramamurthy , Sudhir Srinivasa
IPC分类号： G01R31/08
CPC分类号： H04W74/08 , H04L1/1614 , H04L1/1685 , H04W24/00 , H04W72/04 , H04W72/12 , H04W74/002 , H04W74/0816 , H04W84/12
摘要： Systems and techniques relating to wireless communications are described. A described technique includes monitoring wireless communication channels, including a first channel and a second channel, to produce a monitoring output, determining a first transmission period for the first channel, determining a second transmission period for the second channel, transmitting, based on the first transmission period, a first packet on the first channel to cause one or more wireless communication devices to set a transmission protection period for the first channel and the second channel based on a reception of the first packet, transmitting, based on the second transmission period, a second packet on the second channel, and monitoring, after the end of the first transmission period, for one or more acknowledgements. An end of the second transmission period can be aligned with an end of the first transmission period.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括监视包括第一信道和第二信道的无线通信信道，以产生监视输出，确定第一信道的第一传输周期，确定第二信道的第二传输周期，基于第一信道传输周期，第一信道上的第一分组，用于使一个或多个无线通信设备基于第一分组的接收来设置第一信道和第二信道的传输保护周期，基于第二传输周期，在第二信道上的第二分组，并且在第一传输周期结束之后监视一个或多个确认。第二传输周期的结束可以与第一传输周期的结束对齐。

7. 发明申请

US20120324315A1 LOW BANDWIDTH PHY FOR WLAN 有权
标题翻译： WLAN的低带宽PHY
公开(公告)号：US20120324315A1
公开(公告)日：2012-12-20
申请号：US13494505
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： H03M13/05 , G06F11/10
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 data units corresponding to first and second PHY modes, respectively. Generating the first data unit includes FEC encoding first information bits, mapping the FEC-encoded bits to first constellation symbols, and generating first OFDM symbols to include the first constellation symbols. The first OFDM symbols utilize a first tone spacing, and include a first number of non-zero tones collectively spanning a first bandwidth. Generating the second data unit includes FEC encoding second information bits, block encoding the FEC-encoded bits, mapping the block-encoded bits to second constellation symbols, and generating second OFDM symbols to include the second constellation symbols. The second OFDM symbols utilize the first tone spacing, and include a second number of non-zero tones collectively spanning a second bandwidth less than the first bandwidth. The second number of non-zero tones is less than the first number of non-zero tones.
摘要翻译：一种方法包括分别产生对应于第一和第二PHY模式的第一和第二数据单元。生成第一数据单元包括FEC编码第一信息比特，将FEC编码比特映射到第一星座符号，以及生成第一OFDM符号以包括第一星座符号。第一OFDM符号利用第一音调间隔，并且包括共同跨越第一带宽的第一数量的非零音调。产生第二数据单元包括FEC编码第二信息比特，对FEC编码比特进行块编码，将块编码比特映射到第二星座符号，以及生成第二OFDM符号以包括第二星座符号。第二OFDM符号利用第一音调间隔，并且包括共同跨越小于第一带宽的第二带宽的第二数量的非零音调。第二数量的非零音调小于第一个非零音调数。

8. 发明申请

US20120201316A1 Control Mode PHY for WLAN 有权
标题翻译： WLAN的控制模式PHY
公开(公告)号：US20120201316A1
公开(公告)日：2012-08-09
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： H04L27/28
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。

9. 发明申请

US20120076219A1 STREAM PARSING IN A COMMUNICATION SYSTEM 有权
标题翻译：通信系统中的流分配
公开(公告)号：US20120076219A1
公开(公告)日：2012-03-29
申请号：US13231670
申请日：2011-09-13
申请人： Sudhir Srinivasa , Hongyuan Zhang
发明人： Sudhir Srinivasa , Hongyuan Zhang
IPC分类号： H04L27/28 , H04L27/06 , H04L27/04
CPC分类号： H04L1/0033 , H04L1/0041 , H04L1/06
摘要： In a method for parsing data in a data unit into a number of spatial streams, a modulation and coding scheme (MCS) is selected from a plurality of MCSs. Information bits are encoded using one or more encoders to generate coded bits, wherein the number of encoders used depends on the selected MCS. The coded bits into a number of spatial streams according to a first set of parsing rules if the coded bits satisfy a parsing constraint. The coded bits are parsed into the number of spatial streams according to a second set of parsing rules if the coded bits do not satisfy the parsing constraint.
摘要翻译：在将数据单元中的数据解析为多个空间流的方法中，从多个MCS中选择调制和编码方案（MCS）。使用一个或多个编码器对信息比特进行编码以产生编码比特，其中使用的编码器数量取决于所选择的MCS。如果编码比特满足解析约束，则根据第一组解析规则将编码比特转换成多个空间流。如果编码比特不满足解析约束，则编码比特根据第二组解析规则解析为空间流数。

10. 发明授权

US09655002B2 Physical layer frame format for WLAN 有权
公开(公告)号：US09655002B2
公开(公告)日：2017-05-16
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： H04W80/00 , H04W28/06 , H04L1/00 , H04L29/06 , H04L27/26 , H04W84/12 , H04W99/00
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.

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