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US 12,719,643 B2Granted
Method and device for transmitting feedback frame for STA operating only in 20 MHz in wireless LAN system
AssigneeLG Electronics Inc.
InventorsEunsung Park, Jinyoung Chun, Jinsoo Choi, Dongguk Lim
Life of this patent
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Abstract
A method and a device for transmitting a feedback frame in a wireless LAN system are proposed. Specifically, a reception STA receives an NDPA frame from a transmission STA through a 320 MHz band. The reception STA receives an NDP frame from the transmission STA. The reception STA transmits a feedback frame to the transmission STA on the basis of the NDPA frame and the NDP frame. The NDPA frame includes information on a partial band. The information on the partial band includes a bitmap configured by one to nine bits. The reception STA is an STA operating only in 20 MHz.
Claims15
A method in a wireless local area network (WLAN) system, the method comprising:
- receiving, by a receiving station (STA), a Null Data Packet Announcement (NDPA) frame from a transmitting STA through a 320 MHz band;
- receiving, by the receiving STA, a Null Data Packet (NDP) frame from the transmitting STA;
- and
- transmitting, by the receiving STA, a feedback frame to the transmitting STA based on the NDPA frame and the NDP frame,
- wherein the NDPA frame includes information on a partial band,
- wherein the information on the partial band includes a bitmap composed of first to ninth bits,
- wherein the first bit is a bit requesting feedback information for a specific 160 MHz channel of the 320 MHz band,
- wherein the second bit is a bit requesting feedback information for a 20 MHz channel having the lowest frequency in the specific 160 MHz channel,
- wherein the third bit is a bit requesting feedback information for a 20 MHz channel having a second lowest frequency in the specific 160 MHz channel,
- wherein the fourth bit is a bit requesting feedback information for a 20 MHz channel having a third lowest frequency in the specific 160 MHz channel,
- wherein the fifth bit is a bit requesting feedback information for a 20 MHz channel having a fourth lowest frequency in the specific 160 MHz channel,
- wherein the sixth bit is a bit requesting feedback information for a 20 MHz channel having a fifth lowest frequency in the specific 160 MHz channel,
- wherein the seventh bit is a bit requesting feedback information for a 20 MHz channel having a sixth lowest frequency in the specific 160 MHz channel,
- wherein the eighth bit is a bit requesting feedback information for a 20 MHz channel having a seventh lowest frequency in the specific 160 MHz channel,
- wherein the ninth bit is a bit requesting feedback information for a 20 MHz channel having the highest frequency in the specific 160 MHz channel, and
- wherein the receiving STA is an STA operating only at 20 MHz.
13 more elements
A receiving station (STA) in a wireless local area network (WLAN) system, the receiving STA comprising:
- a memory;
- a transceiver;
- and
- a processor being operatively connected to the memory and the transceiver,
- wherein the processor is configured to:
- receive a Null Data Packet Announcement (NDPA) frame from a transmitting STA through a 320 MHz band;
- receive a Null Data Packet (NDP) frame from the transmitting STA;
- and
- transmit a feedback frame to the transmitting STA based on the NDPA frame and the NDP frame,
- wherein the NDPA frame includes information on a partial band,
- wherein the information on the partial band includes a bitmap composed of first to ninth bits,
- wherein the first bit is a bit requesting feedback information for a specific 160 MHz channel of the 320 MHz band,
- wherein the second bit is a bit requesting feedback information for a 20 MHz channel having the lowest frequency in the specific 160 MHz channel,
- wherein the third bit is a bit requesting feedback information for a 20 MHz channel having a second lowest frequency in the specific 160 MHz channel,
- wherein the fourth bit is a bit requesting feedback information for a 20 MHz channel having a third lowest frequency in the specific 160 MHz channel,
- wherein the fifth bit is a bit requesting feedback information for a 20 MHz channel having a fourth lowest frequency in the specific 160 MHz channel,
- wherein the sixth bit is a bit requesting feedback information for a 20 MHz channel having a fifth lowest frequency in the specific 160 MHz channel,
- wherein the seventh bit is a bit requesting feedback information for a 20 MHz channel having a sixth lowest frequency in the specific 160 MHz channel,
- wherein the eighth bit is a bit requesting feedback information for a 20 MHz channel having a seventh lowest frequency in the specific 160 MHz channel,
- wherein the ninth bit is a bit requesting feedback information for a 20 MHz channel having the highest frequency in the specific 160 MHz channel, and
- wherein the receiving STA is an STA operating only at 20 MHz.
18 more elements
A method in a wireless local area network (WLAN) system, the method comprising:
- transmitting, by a transmitting station (STA), a null data packet announcement (NDPA) frame to a receiving STA through a 320 MHz band;
- transmitting, by the transmitting STA, a Null Data Packet (NDP) frame to the receiving STA;
- and
- receiving, by the transmitting STA, a feedback frame based on the NDPA frame and the NDP frame from the receiving STA,
- wherein the NDPA frame includes information on a partial band,
- wherein the information on the partial band includes a bitmap composed of first to ninth bits,
- wherein the first bit is a bit requesting feedback information for a specific 160 MHz channel of the 320 MHz band,
- wherein the second bit is a bit requesting feedback information for a 20 MHz channel having the lowest frequency in the specific 160 MHz channel,
- wherein the third bit is a bit requesting feedback information for a 20 MHz channel having a second lowest frequency in the specific 160 MHz channel,
- wherein the fourth bit is a bit requesting feedback information for a 20 MHz channel having a third lowest frequency in the specific 160 MHz channel,
- wherein the fifth bit is a bit requesting feedback information for a 20 MHz channel having a fourth lowest frequency in the specific 160 MHz channel,
- wherein the sixth bit is a bit requesting feedback information for a 20 MHz channel having a fifth lowest frequency in the specific 160 MHz channel,
- wherein the seventh bit is a bit requesting feedback information for a 20 MHz channel having a sixth lowest frequency in the specific 160 MHz channel,
- wherein the eighth bit is a bit requesting feedback information for a 20 MHz channel having a seventh lowest frequency in the specific 160 MHz channel,
- wherein the ninth bit is a bit requesting feedback information for a 20 MHz channel having the highest frequency in the specific 160 MHz channel, and
- wherein the receiving STA is an STA operating only at 20 MHz.
13 more elements
Dependencies are inferred from the claim text.