Access point, station, and wireless communication method
View Patent ↗An access point (AP), a station (STA), and a wireless communication method are provided. The method includes receiving, by a STA (e.g., an EHT STA), a physical layer protocol data unit (PPDU) which carries one or more trigger frames for performing a high efficiency (HE) trigger-based (TB) PPDU transmission or an extremely high efficiency (EHT) TB PPDU transmission of a TB aggregate PPDU (A-PPDU) transmission to an AP. In another embodiment, the method includes receiving, by an EHT STA, a PPDU which carries two or more aggregate medium access control (MAC) protocol data units (A-MPDUs) for performing any of one or more HE TB PPDU transmission and one or more EHT TB PPDU transmission of a TB A-PPDU transmission to an AP.
1 . A wireless communication method, comprising:
transmitting, by an access point (AP), a physical layer protocol data unit (PPDU) which carries two or more aggregate medium access control (MAC) protocol data units (A-MPDUs), wherein at least one of the two or more A-MPDU comprises one or more triggered response scheduling (TRS) Control subfields for configuring any of one or more high efficiency (HE) trigger-based (TB) PPDUs and one or more extremely high efficiency (EHT) TB PPDUs,
wherein each TRS Control subfield comprises an uplink modulation and coding scheme (UL MCS) subfield for indicating modulation and coding schemes used in a TB PPDU response,
wherein when the TRS Control subfield is carried in an HE multi-user (MU) PPDU, the UL MCS subfield indicates HE-MCS, in a range HE-MCS 0 to 3, and the UL MCS subfield is set to HE-MCS index,
when the TRS Control subfield is carried in an EHT MU PPDU, the UL MCS subfield indicates EHT-SIG-MCS, in a range EHT-SIG-MCS 0 to 3, and the UL MCS subfield is set to EHT-SIG-MCS index, and
wherein the EHT-SIG-MCS is set to 0 for EHT-MCS 0, the EHT-SIG-MCS is set to 1 for EHT-MCS 1, the EHT-SIG-MCS is set to 2 for EHT-MCS 3, and the EHT-SIG-MCS is set to 3 for EHT-MCS 15.
2 . The wireless communication method of claim 1 , wherein the EHT-SIG-MCS is a compact representation of a modulation and coding scheme used in the EHT-SIG field of the EHT MU PPDU.
3 . The wireless communication method of claim 1 , wherein when the TRS Control subfield is carried in an EHT MU PPDU, an RU Allocation subfield together with a PS 160 bit indicates RU or MRU allocation.
4 . The wireless communication method of claim 3 , wherein a value of the PS 160 bit is determined according to a location of RU or MRU carrying TRS Control subfield in EHT MU PPDU.
5 . The wireless communication method of claim 4 , wherein when the RU or MRU containing the TRS Control subfield in the EHT MU PPDU is within primary 160 MHz, the PS 160 bit is set to 0, otherwise the PS 160 bit is set to 1.
6 . The wireless communication method of claim 1 , wherein a Control Information field in a TRS Control subfield comprises at least one of following:
a subfield indicating UL Data Symbols, a subfield indicating RU Allocation, a subfield indicating AP Tx Power, a subfield indicating UL Target Receive Power, a subfield indicating UL MCS, or a Reserved subfield.
7 . 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 perform a wireless communication method comprising:
transmitting a physical layer protocol data unit (PPDU) which carries two or more aggregate medium access control (MAC) protocol data units (A-MPDUs), wherein at least one of the two or more A-MPDU comprises one or more triggered response scheduling (TRS) Control subfields for configuring any of one or more high efficiency (HE) trigger-based (TB) PPDUs and one or more extremely high efficiency (EHT) TB PPDUs,
wherein each TRS Control subfield comprises an uplink modulation and coding scheme (UL MCS) subfield for indicating modulation and coding schemes used in a TB PPDU response,
wherein when the TRS Control subfield is carried in an HE multi-user (MU) PPDU, the UL MCS subfield indicates HE-MCS, in a range HE-MCS 0 to 3, and the UL MCS subfield is set to HE-MCS index,
when the TRS Control subfield is in carried an EHT MU PPDU, the UL MCS subfield indicates EHT-SIG-MCS, in a range EHT-SIG-MCS 0 to 3, and the UL MCS subfield is set to EHT-SIG-MCS index, and
wherein the EHT-SIG-MCS is set to 0 for EHT-MCS 0, the EHT-SIG-MCS is set to 1 for EHT-MCS 1, the EHT-SIG-MCS is set to 2 for EHT-MCS 3, and the EHT-SIG-MCS is set to 3 for EHT-MCS 15.
8 . The AP of claim 7 , wherein the EHT-SIG-MCS is a compact representation of a modulation and coding scheme used in the EHT-SIG field of the EHT MU PPDU.
9 . The AP of claim 7 , wherein when the TRS Control subfield is carried in an EHT MU PPDU, an RU Allocation subfield together with a PS 160 bit indicates RU or MRU allocation.
10 . The AP of claim 9 , wherein a value of the PS 160 bit is determined according to a location of RU or MRU carrying TRS Control subfield in EHT MU PPDU.
11 . The AP of claim 10 , wherein when the RU or MRU containing the TRS Control subfield in the EHT MU PPDU is within primary 160 MHz, the PS 160 bit is set to 0, otherwise the PS 160 bit is set to 1.
12 . The AP of claim 7 , wherein a Control Information field in a TRS Control subfield comprises at least one of following:
a subfield indicating UL Data Symbols, a subfield indicating RU Allocation, a subfield indicating AP Tx Power, a subfield indicating UL Target Receive Power, a subfield indicating UL MCS, or a Reserved subfield.
13 . A wireless communication method, comprising:
receiving, by an extremely high throughput (EHT) station (STA), a triggered response scheduling (TRS) Control subfield carried in an EHT multi-user (MU) physical layer protocol data unit (PPDU), wherein the TRS Control subfield comprises an uplink modulation and coding scheme (UL MCS) subfield for indicating modulation and coding schemes used in a trigger-based (TB) PPDU response,
wherein the UL MCS subfield indicates EHT-SIG-MCS, in a range EHT-SIG-MCS 0 to 3, and the UL MCS subfield is set to EHT-SIG-MCS index, and
wherein the EHT-SIG-MCS is set to 0 for EHT-MCS 0, the EHT-SIG-MCS is set to 1 for EHT-MCS 1, the EHT-SIG-MCS is set to 2 for EHT-MCS 3, and the EHT-SIG-MCS is set to 3 for EHT-MCS 15.
14 . The wireless communication method of claim 13 , wherein the EHT-SIG-MCS is a compact representation of a modulation and coding scheme used in the EHT-SIG field of the EHT MU PPDU.
15 . The wireless communication method of claim 13 , wherein when the TRS Control subfield is carried in an EHT MU PPDU, an RU Allocation subfield together with a PS 160 bit indicates RU or MRU allocation.
16 . The wireless communication method of claim 15 , wherein a value of the PS 160 bit is determined according to a location of RU or MRU carrying TRS Control subfield in EHT MU PPDU.
17 . A station (STA), comprising a memory; a transceiver; and a processor coupled to the memory and the transceiver, wherein the processor is configured to perform a wireless communication method comprising:
receiving a triggered response scheduling (TRS) Control subfield carried in an extremely high throughput (EHT) multi-user (MU) physical layer protocol data unit (PPDU), wherein the TRS Control subfield comprises an uplink modulation and coding scheme (UL MCS) subfield for indicating modulation and coding schemes used in a trigger-based (TB) PPDU response,
wherein the UL MCS subfield indicates EHT-SIG-MCS, in a range EHT-SIG-MCS 0 to 3, and the UL MCS subfield is set to EHT-SIG-MCS index, and
wherein the EHT-SIG-MCS is set to 0 for EHT-MCS 0, the EHT-SIG-MCS is set to 1 for EHT-MCS 1, the EHT-SIG-MCS is set to 2 for EHT-MCS 3, and the EHT-SIG-MCS is set to 3 for EHT-MCS 15.
18 . The STA of claim 17 , wherein the EHT-SIG-MCS is a compact representation of a modulation and coding scheme used in the EHT-SIG field of the EHT MU PPDU.
19 . The STA of claim 17 , wherein when the TRS Control subfield is carried in an EHT MU PPDU, an RU Allocation subfield together with a PS 160 bit indicates RU or MRU allocation.
20 . The STA of claim 19 , wherein a value of the PS 160 bit is determined according to a location of RU or MRU carrying TRS Control subfield in EHT MU PPDU.