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US 12,593,315 B2Granted
Method and device for generating APPDU in wireless LAN system
AssigneeLG Electronics Inc.
InventorsDongguk Lim, Jinyoung Chun, Jinsoo Choi, Eunsung Park
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Abstract
Proposed is a technical feature applied to an aggregated physical protocol data unit (APPDU) comprising various types of sub-PPDUs. Proposed is a technique for negotiating subchannel-related information with a plurality of stations (STAs) in order to determine bandwidths of a plurality of sub-PPDUs included in an APPDU. The APPDU is generated on the basis of a negotiated subchannel, and a signal field, including bandwidth-related information, may be configured for each of the plurality of sub-PPDUs included in the APPDU. The APPDU may be transmitted to a receiving STA through a subchannel selective transmission (SST) operation.
Claims9
A method used in a wireless local area network (WLAN) system, the method comprising:
- configuring, by a first access point (AP), an Aggregated Physical Protocol Data Unit (A-PPDU) including a first PPDU based on a first type PPDU and a second PPDU based on a second type PPDU;
- transmitting, by the first AP, the A-PPDU to non-access point (non-AP) stations (STAs) included in a first basic service set (BSS) of the first AP,
- wherein the A-PPDU is configured on a 320 megahertz (MHz) channel, and the 320 MHz channel includes a primary 160 MHz channel and a secondary 160 MHz channel,
- wherein the first PPDU is configured on the primary 160 MHz channel and the second PPDU is configured on the secondary 160 MHz channel,
- wherein the first PPDU includes a first signal field including a first field value, and the first field value includes information that a bandwidth of the first PPDU is the primary 160 MHz channel,
- wherein the second PPDU includes a second signal field including a second field value, and the second field value includes information that a bandwidth of the second PPDU is set to a bandwidth of the A-PPDU being the 320 MHz channel, and
- wherein, based on an overlapping basic service set (OBSS) non-AP STA included in a second BSS of a second AP overhearing the A-PPDU, reception of a signal from the first AP by the OBSS non-AP STA or transmission of a signal to the first AP by the OBSS non-AP STA in the 320 MHz channel is stopped based on the second field value.
4 more elements
A first access point (AP) in a wireless local area network (WLAN) system, comprising:
- a transceiver transmitting and/or receiving a wireless signal;
- and
- a processor controlling the transceiver,
- wherein the processor is adapted to:
- configure an Aggregated Physical Protocol Data Unit (A-PPDU) including a first PPDU based on a first type PPDU and a second PPDU based on a second type PPDU;
- transmit the A-PPDU to non-access point (non-AP) stations (STAs) included in a first basic service set (BSS) of the first AP,
- wherein the A-PPDU is configured on a 320 megahertz (MHz) channel, and the 320 MHz channel includes a primary 160 MHz channel and a secondary 160 MHz channel,
- wherein the first PPDU is configured on the primary 160 MHz channel and the second PPDU is configured on the secondary 160 MHz channel,
- wherein the first PPDU includes a first signal field including a first field value, and the first field value includes information that a bandwidth of the first PPDU is the primary 160 MHz channel,
- wherein the second PPDU includes a second signal field including a second field value, and the second field value includes information that a bandwidth of the second PPDU is set to a bandwidth of the A-PPDU being the 320 MHz channel, and
- wherein, based on an overlapping basic service set (OBSS) non-AP STA included in a second BSS of a second AP overhearing the A-PPDU, reception of a signal from the first AP by the OBSS non-AP STA or transmission of a signal to the first AP by the OBSS non-AP STA in the 320 MHz channel is stopped based on the second field value.
8 more elements
A method used in a wireless local area network (WLAN) system, the method comprising:
- receiving, by a non-access point (non-AP) station (STA) included in a first basic service set (BSS) of the first access point (AP), an Aggregated Physical Protocol Data Unit (A-PPDU) including a first PPDU based on a first type PPDU and a second PPDU based on a second type PPDU from a first AP;
- decoding, by a non-AP STA, the A-PPDU,
- wherein the A-PPDU is configured on a 320 megahertz (MHz) channel, and the 320 MHz channel includes a primary 160 MHz channel and a secondary 160 MHz channel,
- wherein the first PPDU is configured on the primary 160 MHz channel and the second PPDU is configured on the secondary 160 MHz channel,
- wherein the first PPDU includes a first signal field including a first field value, and the first field value includes information that a bandwidth of the first PPDU is the primary 160 MHz channel,
- wherein the second PPDU includes a second signal field including a second field value, and the second field value includes information that a bandwidth of the second PPDU is set to a bandwidth of the A-PPDU being the 320 MHz channel, and
- wherein, based on an overlapping basic service set (OBSS) non-AP STA included in a second BSS of a second AP overhearing the A-PPDU, reception of a signal from the first AP by the OBSS non-AP STA or transmission of a signal to the first AP by the OBSS non-AP STA in the 320 MHz channel is stopped based on the second field value.
4 more elements
Dependencies are inferred from the claim text.