Method and devices for link adaptation feedback in wireless local area networks
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorLei Huang
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Abstract
Embodiments of the invention provide methods and devices for link adaptation feedback in a wireless local area network (WLAN). The method for link adaptation feedback in a WLAN comprises: transmitting a first PPDU to one or more receiving devices, wherein the first PPDU comprises one or more A-MPDUs, and each A-MPDU corresponds to one of the one or more receiving devices, and receiving a second PPDU from each of the one or more receiving devices, wherein the second PPDU comprises a BA frame carrying a link adaptation feedback, wherein whether the link adaptation feedback is a solicited or an unsolicited link adaptation feedback depends on whether a link adaptation feedback request is included in the corresponding A-MPDU.
Claims13
A method for link adaptation feedback in a wireless local area network (WLAN), the method comprising:
- transmitting, by a transmitting device, a first PPDU to one or more receiving devices, wherein the first PPDU comprises one or more A-MPDUs, and each A-MPDU corresponds to one of the one or more receiving devices,
- wherein each of one or more data frames corresponding to each of the one or more A-MPDUs comprises an HT Control field and the HT Control field comprises an LA Control subfield,
- wherein the LA Control subfield comprises an HE/EHT Indication subfield indicating a type of the HLA Control subfield, and the HE/EHT Indication subfield being set to a first value for an HE type of HLA Control subfield and set to a second value for an EHT type of HLA Control subfield or an ELA Control subfield, and
- wherein the EHT type of HLA Control subfield or the ELA Control subfield comprises a MSI/Partial PPDU Parameters subfield which is set to include a sequence number in a range to identify a specific link adaptation feedback request;
- and
- receiving, by the transmitting device, a second PPDU from each of the one or more receiving devices,
- wherein the MSI/Partial PPDU Parameters subfield occupies 3 bits and in a range of 0 to 6.
A transmitting device for link adaptation feedback in a WLAN, the transmitting device comprising:
- a transmission unit configured to transmit a first PPDU to one or more receiving devices, wherein the first PPDU comprises one or more A-MPDUs, and each A-MPDU corresponds to one of the one or more receiving devices,
- wherein each of one or more data frames corresponding to each of the one or more A-MPDUs comprises an HT Control field and the HT Control field comprises an LA Control subfield,
- wherein the LA Control subfield comprises an HE/EHT Indication subfield indicating a type of the HLA Control subfield, and the HE/EHT Indication subfield being set to a first value for an HE type of HLA Control subfield and set to a second value for an EHT type of HLA Control subfield or an ELA Control subfield, and
- wherein the EHT type of HLA Control subfield or the ELA Control subfield comprises a MSI/Partial PPDU Parameters subfield which is set to include a sequence number in a range to identify a specific link adaptation feedback request;
- and
- a reception unit configured to receive a second PPDU from each of the one or more receiving devices,
- wherein the MSI/Partial PPDU Parameters subfield occupies 3 bits and in a range of 0 to 6.
A receiving device for link adaptation feedback in a WLAN, the receiving device comprising:
- a processor;
- and
- a memory, configured to store processor-executable instructions,
- wherein the processor-executable instructions are configured, when run by the processor, to cause the processor to perform a method for link adaptation feedback in a wireless local area network (WLAN), the method comprising:
- receiving a first PPDU from a transmitting device, wherein the first PPDU comprises an A-MPDU corresponding to the receiving device,
- wherein a data frame corresponding to the A-MPDU comprises an HT Control field and the HT Control field comprises an LA Control subfield,
- wherein the LA Control subfield comprises an HE/EHT Indication subfield indicating a type of the HLA Control subfield, and the HE/EHT Indication subfield being set to a first value for an HE type of HLA Control subfield and set to a second value for an EHT type of HLA Control subfield or an ELA Control subfield,
- wherein the EHT type of HLA Control subfield or the ELA Control subfield comprises a MSI/Partial PPDU Parameters subfield which is set to include a sequence number in a range to identify a specific link adaptation feedback request;
- and
- transmitting, during a short interframe spacing, a second PPDU to the transmitting device,
- wherein the MSI/Partial PPDU Parameters subfield occupies 3 bits and in a range of 0 to 6.
Dependencies are inferred from the claim text.