Method and apparatus for transmitting wireless local area network information

Abstract

A method for sending a wireless local area network packet structure is provided, and the method comprises: determining a packet structure, where the packet structure comprises an HE-SIGA and an HE-SIGB, the HE-SIGA comprises an indication information, and if a current transmission mode is a full bandwidth MU-MIMO transmission, the indication information is used to indicate a number of scheduled users, or if the current transmission mode is other transmission mode, the indication information is used to indicate a number of symbols in the HE-SIGB; and sending the packet structure.

What is claimed is: 
     
         1 . A method for transmitting a packet structure in a wireless local area network, comprising:
 constructing a packet structure, wherein the packet structure comprises a High Efficient Signal Field B (HE-SIGB), wherein the HE-SIGB comprises a first HE-SIGB content which is carried at each odd-numbered 20 MHz sub-channel, and a second HE-SIGB content which is carried at each even-numbered 20 MHz sub-channel;   wherein the first HE-SIGB content comprises a first common field and a first user specific field; wherein the first common field comprises one or more first resource allocations (RA), and each of the first RAs indicates one or more resource units which are allocated in one odd-numbered 20 MHz sub-channel; wherein the first user specific field comprises one or more first user scheduling information subfields, each of the one or more first user scheduling information subfields comprises information of one station (STA), wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more first RAs;   wherein the second HE-SIGB content comprises a second common field and a second user specific field; wherein the second common field comprises one or more second resource allocations (RA), and each of the second RAs indicates one or more resource units which are allocated in one even-numbered 20 MHz sub-channel;   wherein the second user specific field comprises one or more second user scheduling information subfields, each of the one or more second user scheduling information subfields comprises information of one STA, wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more second RAs;   wherein one of the one or more first RA subfields indicates a specific resource unit and indicates that a number of one or more first user scheduling information subfields is n1;   wherein one of the one or more second RA indicates the same specific resource unit and indicates that a number of one or more second user scheduling information subfields is n2; and   wherein a number of the STAs scheduled on the same specific resource unit is the sum of n1 and n2;   transmitting the packet structure.   
     
     
         2 . The method according to  claim 1 , wherein the same specific resource unit is a resource unit with a size of 484 subcarriers. 
     
     
         3 . The method according to  claim 1 , wherein n1 comprises one value from integers 0 to 8; n2 comprises one value from integers 0 to 8. 
     
     
         4 . The method according to  claim 1 , by setting n1 and n2, a number of symbols in the HE-SIGB is smallest. 
     
     
         5 . The method according to  claim 1 , wherein a bandwidth for transmitting the packet structure is 40 MHz, 80 MHz or 160 MHz, wherein,
 in the 40 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channel is the first 20 MHz channel, the even-numbered 20 MHz channel is the second 20 MHz channel;   in the 80 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz and the third 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz and the fourth 20 MHz sub-channel;   in the 160 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz, the third 20 MHz, the fifth and the seventh 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz, the fourth 20 MHz, the sixth and the eighth 20 MHz sub-channel.   
     
     
         6 . A method for receiving a packet structure in a wireless local area network, comprising:
 receiving a packet structure, wherein the packet structure comprises a High Efficient Signal Field B (HE-SIGB), wherein the HE-SIGB comprises a first HE-SIGB content which is carried at each odd-numbered 20 MHz sub-channel, and a second HE-SIGB content which is carried at each even-numbered 20 MHz sub-channel;   wherein the first HE-SIGB content comprises a first common field and a first user specific field; wherein the first common field comprises one or more first resource allocations (RA), and each of the first RAs indicates one or more resource units which are allocated in one odd-numbered 20 MHz sub-channel; wherein the first user specific field comprises one or more first user scheduling information subfields, each of the one or more first user scheduling information subfields comprises information of one station (STA), wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more first RAs;   wherein the second HE-SIGB content comprises a second common field and a second user specific field; wherein the second common field comprises one or more second resource allocations (RA), and each of the second RAs indicates one or more resource units which are allocated in one even-numbered 20 MHz sub-channel;   wherein the second user specific field comprises one or more second user scheduling information subfields, each of the one or more second user scheduling information subfields comprises information of one STA, wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more second RAs;   wherein one of the one or more first RA subfields indicates a specific resource unit and indicates that a number of one or more first user scheduling information subfields is n1;   wherein one of the one or more second RA indicates the same specific resource unit and indicates that a number of one or more second user scheduling information subfields is n2; and   wherein a number of the STAs scheduled on the same specific resource unit is the sum of n1 and n2;   processing the packet structure.   
     
     
         7 . The method according to  claim 6 , wherein the same specific resource unit is a resource unit with a size of 484 subcarriers. 
     
     
         8 . The method according to  claim 6 , wherein n1 comprises one value from integers 0 to 8; n2 comprises one value from integers 0 to 8. 
     
     
         9 . The method according to  claim 6 , by setting n1 and n2, a number of symbols in the HE-SIGB is smallest. 
     
     
         10 . The method according to  claim 6 , wherein a bandwidth for transmitting the packet structure is 40 MHz, 80 MHz or 160 MHz, wherein,
 in the 40 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channel is the first 20 MHz channel, the even-numbered 20 MHz channel is the second 20 MHz channel;   in the 80 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz and the third 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz and the fourth 20 MHz sub-channel;   in the 160 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz, the third 20 MHz, the fifth and the seventh 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz, the fourth 20 MHz, the sixth and the eighth 20 MHz sub-channel.   
     
     
         11 . An apparatus for transmitting a packet structure in a wireless local area network, comprising:
 a processor and a non-transitory memory, wherein the memory stores instructions for the processor to:   construct a packet structure, wherein the packet structure comprises a High Efficient Signal Field B (HE-SIGB), wherein the HE-SIGB comprises a first HE-SIGB content which is carried at each odd-numbered 20 MHz sub-channel, and a second HE-SIGB content which is carried at each even-numbered 20 MHz sub-channel;   wherein the first HE-SIGB content comprises a first common field and a first user specific field; wherein the first common field comprises one or more first resource allocations (RA), and each of the first RAs indicates one or more resource units which are allocated in one odd-numbered 20 MHz sub-channel; wherein the first user specific field comprises one or more first user scheduling information subfields, each of one or more the first user scheduling information subfields comprises information of one station (STA), wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more first RAs;   wherein the second HE-SIGB content comprises a second common field and a second user specific field; wherein the second common field comprises one or more second resource allocations (RA), and each of the second RAs indicates one or more resource units which are allocated in one even-numbered 20 MHz sub-channel; wherein the second user specific field comprises one or more second user scheduling information subfields, each of the one or more second user scheduling information subfields comprises information of one STA, wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more second RAs;   wherein one of the one or more first RA subfields indicates a specific resource unit and indicates that a number of one or more first user scheduling information subfields is n1;   wherein one of the one or more second RA indicates the same specific resource unit and indicates that a number of one or more second user scheduling information subfields is n2; and   wherein a number of the STAs scheduled on the same specific resource unit is the sum of n1 and n2;   transmit the packet structure.   
     
     
         12 . The apparatus according to  claim 11 , wherein the same specific resource unit is a resource unit with a size of 484 subcarriers. 
     
     
         13 . The apparatus according to  claim 11 , wherein, n1 comprises one value from integers 0 to 8; n2 comprises one value from integers 0 to 8. 
     
     
         14 . The apparatus according to  claim 11 , by setting n1 and n2, a number of symbols in the HE-SIGB is smallest. 
     
     
         15 . The apparatus according to  claim 11 , wherein a bandwidth for transmitting the packet structure is 40 MHz, 80 MHz or 160 MHz, wherein,
 in the 40 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channel is the first 20 MHz channel, the even-numbered 20 MHz channel is the second 20 MHz channel;   in the 80 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz and the third 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz and the fourth 20 MHz sub-channel;   in the 160 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz, the third 20 MHz, the fifth and the seventh 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz, the fourth 20 MHz, the sixth and the eighth 20 MHz sub-channel.   
     
     
         16 . An apparatus for receiving a packet structure in a wireless local area network, comprising:
 a processor and a non-transitory memory, wherein the memory stores instructions for the processor to:   receive a packet structure, wherein the packet structure comprises a High Efficient Signal Field B (HE-SIGB), wherein the HE-SIGB comprises a first HE-SIGB content which is carried at each odd-numbered 20 MHz sub-channel, and a second HE-SIGB content which is carried at each even-numbered 20 MHz sub-channel;   wherein the first HE-SIGB content comprises a first common field and a first user specific field; wherein the first common field comprises one or more first resource unit allocation (RA) subfields, and each of the first RA subfields indicates one or more resource units which are allocated in one odd-numbered 20 MHz sub-channel; wherein the first user specific field comprises one or more first user scheduling information subfields, each of the one or more first user scheduling information subfields comprises information of one station (STA), wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more first RA subfields;   wherein the second HE-SIGB content comprises a second common field and a second user specific field; wherein the second common field comprises one or more second RA subfields, and each of the second RA subfields indicates one or more resource units which are allocated in one even-numbered 20 MHz sub-channel; wherein the second user specific field comprises one or more second user scheduling information subfields, each of the one or more second user scheduling information subfields comprises information of one STA, wherein the STA is scheduled on one of the one or more resource units which are indicated by the one or more second RA subfields;   wherein one of the one or more first RA subfields indicates a specific resource unit and indicates that a number of one or more first user scheduling information subfields is n1;   wherein one of the one or more second RA indicates the same specific resource unit and indicates that a number of one or more second user scheduling information subfields is n2; and   wherein a number of the STAs scheduled on the same specific resource unit is the sum of n1 and n2;   process the packet structure.   
     
     
         17 . The apparatus according to  claim 16 , wherein the same specific resource unit is a resource unit with a size of 484 subcarriers. 
     
     
         18 . The apparatus according to  claim 16 , wherein n1 comprises one value from integers 0 to 8; n2 comprises one value from integers 0 to 8. 
     
     
         19 . The apparatus according to  claim 16 , by setting n1 and n2, a number of symbols in the HE-SIGB is smallest. 
     
     
         20 . The apparatus according to  claim 16 , wherein a bandwidth for transmitting the packet structure is 40 MHz, 80 MHz or 160 MHz, wherein,
 in the 40 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channel is the first 20 MHz channel, the even-numbered 20 MHz channel is the second 20 MHz channel;   in the 80 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz and the third 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz and the fourth 20 MHz sub-channel;   in the 160 MHz bandwidth transmission, the odd-numbered 20 MHz sub-channels are the first 20 MHz, the third 20 MHz, the fifth and the seventh 20 MHz sub-channels, the even-numbered 20 MHz sub-channels are the second 20 MHz, the fourth 20 MHz, the sixth and the eighth 20 MHz sub-channel.