Access point, station, and information transmission method
View Patent ↗An access point (AP), a station (STA), and an information transmission method are provided. The information transmission method includes configuring, by an access point (AP), an aggregated physical layer (PHY) protocol data unit (A-PPDU) used for downlink transmission to a set of STAs, wherein the A-PPDU comprises a first PPDU and at least one second PPDU if a number of first symbols of the first PPDU is equal to a number of second symbols of the second PPDU and/or a first field of the first PPDU has a same symbol duration and/or a same guard interval (GI) duration as a second field of the second PPDU; and determining, by the AP, an uplink transmission from a STA of the set of STAs, wherein the uplink transmission is in response to the A-PPDU used for downlink transmission. This can aggregate different formats of PPDUs.
1 . An information transmission method, comprising:
configuring, by an access point (AP), an aggregated physical layer (PHY) protocol data unit (A-PPDU) used for downlink transmission to a set of stations (STAs), wherein the A-PPDU comprises a first PPDU and at least one second PPDU if a number of first symbols of the first PPDU is equal to a number of second symbols of the second PPDU and/or a first field of the first PPDU has a same symbol duration and/or a same guard interval (GI) duration as a second field of the second PPDU; and
determining, by the AP, an uplink transmission from a STA of the set of STAs, wherein the uplink transmission is in response to the A-PPDU used for downlink transmission, wherein the A-PPDU used for downlink transmission to the set of STAs is configured in a basic service set (BSS) with a bandwidth,
wherein the BSS comprises an extremely high throughput (EHT) BSS,
wherein for 320 MHz BW FD-A-PPDU, BW allocation in the FD-A-PPDU comprises at least one of the following options:
option 1A: when S 80 is punctured, a BW allocated to at least one HE STA is P 80 and a BW allocated to at least one EHT STA is S 160 ;
option 1B: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 160 and the BW allocated to the at least one EHT STA is the other 80 MHz frequency segment of S 160 ;
option 1C: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA is S 80 and the other 80 MHz frequency segment of S 160 ;
option 1D: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 160 and the BW allocated to the at least one EHT STA is S 160 ; or
option 1E: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA is S 80 and S 160 .
2 . The information transmission method of claim 1 , wherein the second field comprises an EHT-LTF,
wherein a number of HE-LTF symbols is same as or different from a number of EHT-LTF symbols.
3 . The information transmission method of claim 2 , wherein when the number of HE-LTF symbols is same as the number of EHT-LTF symbols, each HE-LTF symbol and/or each EHT-LTF symbol has a different duration or a same duration from each data symbol.
4 . The information transmission method of claim 2 , wherein when the number of HE-LTF symbols is different from the number of EHT-LTF symbols, each HE-LTF symbol and/or each EHT-LTF symbol has a same duration from each data symbol.
5 . The information transmission method of claim 1 , wherein the uplink transmission is determined in a first bandwidth channel if the STA is a first type of STA and/or is determined in a second bandwidth channel if the STA is a second type of STA and/or is determined in a third bandwidth channel if the STA is a third type of STA.
6 . The information transmission method of claim 5 , wherein the second type of STA comprises an EHT STA, and the second bandwidth channel comprises a non-primary 80 MHz channel and/or the third type of STA comprises a post-EHT STA, and the third bandwidth channel comprises a non-primary 80 MHz channel.
7 . The information transmission method of claim 1 , wherein 320 MHz BW FD-A-PPDU comprise HE MU PPDU, EHT MU PPDU, and a post-EHT MU PPDU.
8 . The information transmission method of claim 7 , wherein for the 320 MHz BW FD-A-PPDU, BW allocation in the FD-A-PPDU comprises at least one of the following options:
option 2A: when S 80 is punctured, the BW allocated to at least one HE STA is P 80 and BWs allocated to at least one EHT STA and at least one post-EHT STA are two 80 MHz frequency segments of S 160 , respectively;
option 2B: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA and the at least one post-EHT STA are S 80 and the other 80 MHz frequency segment of S 160 , respectively;
option 2C: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 , the BW allocated to the at least one EHT STA is S 160 , and the BW allocated to the at least one post-EHT STA is S 80 ; or
option 2D: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 , the BW allocated to the at least one post-EHT STA is S 160 , and the BW allocated to the at least one EHT STA is S 80 .
9 . The information transmission method of claim 7 , wherein for trigger-based uplink transmission, the FD-A-PPDU comprises one or more HE TB PPDUs, and one or more EHT TB PPDUs in an EHT BSS and/or the FD-A-PPDU comprises one or more HE TB PPDUs, one or more EHT TB PPDUs, and one or more post-EHT TB PPDUs in a post-EHT BSS.
10 . An access point (AP), comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver;
wherein the processor is configured to:
configure an aggregated physical layer (PHY) protocol data unit (A-PPDU) used for downlink transmission to a set of stations (STAs), wherein the A-PPDU comprises a first PPDU and at least one second PPDU if a number of first symbols of the first PPDU is equal to a number of second symbols of the second PPDU and/or a first field of the first PPDU has a same symbol duration and/or a same guard interval (GI) duration as a second field of the second PPDU; and
determine an uplink transmission from a STA of the set of STAs, wherein the uplink transmission is in response to the A-PPDU used for downlink transmission,
wherein the A-PPDU used for downlink transmission to the set of STAs is configured in a basic service set (BSS) with a bandwidth, and
wherein the BSS comprises an extremely high throughput (EHT) BSS,
wherein for 320 MHz BW FD-A-PPDU, BW allocation in the FD-A-PPDU comprises at least one of the following options:
option 1A: when S 80 is punctured, a BW allocated to at least one HE STA is P 80 and a BW allocated to at least one EHT STA is S 160 ;
option 1B: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 160 and the BW allocated to the at least one EHT STA is the other 80 MHz frequency segment of S 160 ;
option 1C: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA is S 80 and the other 80 MHz frequency segment of S 160 ;
option 1D: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 160 and the BW allocated to the at least one EHT STA is S 160 ; or
option 1E: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA is S 80 and S 160 .
11 . The AP of claim 10 , wherein the second field comprises an EHT-LTF,
wherein a number of HE-LTF symbols is same as or different from a number of EHT-LTF symbols.
12 . The AP of claim 11 , wherein when the number of HE-LTF symbols is same as the number of EHT-LTF symbols, each HE-LTF symbol and/or each EHT-LTF symbol has a different duration or a same duration from each data symbol.
13 . The AP of claim 11 , wherein when the number of HE-LTF symbols is different from the number of EHT-LTF symbols, each HE-LTF symbol and/or each EHT-LTF symbol has a same duration from each data symbol.
14 . The AP of claim 10 , wherein the uplink transmission is determined in a first bandwidth channel if the STA is a first type of STA and/or is determined in a second bandwidth channel if the STA is a second type of STA and/or is determined in a third bandwidth channel if the STA is a third type of STA.
15 . The AP of claim 14 , wherein the second type of STA comprises an EHT STA, and the second bandwidth channel comprises a non-primary 80 MHz channel and/or the third type of STA comprises a post-EHT STA, and the third bandwidth channel comprises a non-primary 80 MHz channel.
16 . The AP of claim 10 , wherein 320 MHz BW FD-A-PPDU comprise HE MU PPDU, EHT MU PPDU, and a post-EHT MU PPDU.
17 . The AP of claim 16 , wherein for the 320 MHz BW FD-A-PPDU, BW allocation in the FD-A-PPDU comprises at least one of the following options:
option 2A: when S 80 is punctured, the BW allocated to at least one HE STA is P 80 and BWs allocated to at least one EHT STA and at least one post-EHT STA are two 80 MHz frequency segments of S 160 , respectively;
option 2B: when one of two 80 MHz frequency segments of S 160 is punctured, the BW allocated to the at least one HE STA is P 80 and the BW allocated to the at least one EHT STA and the at least one post-EHT STA are S 80 and the other 80 MHz frequency segment of S 160 , respectively;
option 2C: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 , the BW allocated to the at least one EHT STA is S 160 , and the BW allocated to the at least one post-EHT STA is S 80 ; or
option 2D: when none of 80 MHz frequency segments is punctured, the BW allocated to the at least one HE STA is P 80 , the BW allocated to the at least one post-EHT STA is S 160 , and the BW allocated to the at least one EHT STA is S 80 .
18 . The AP of claim 16 , wherein for trigger-based uplink transmission, the FD-A-PPDU comprises one or more HE TB PPDUs, and one or more EHT TB PPDUs in an EHT BSS and/or the FD-A-PPDU comprises one or more HE TB PPDUs, one or more EHT TB PPDUs, and one or more post-EHT TB PPDUs in a post-EHT BSS.