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US 11,457,439 B2Granted
Method and device for executing communication via uplink access in wireless LAN system
AssigneeLG Electronics Inc.
InventorsJeongki Kim, Kiseon Ryu, Jinsoo Choi
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Abstract
The present specification relates to a method and a device for determination related to enhanced distributed channel access (EDCA). For example, it may be inappropriate for a STA to perform uplink communication based on EDCA. In this case, an AP and/or the STA can disable an EDCA function or operation. The present specification proposes various examples of a determination criterion and a determination method related to EDCA disabling.
Claims6
A method for a wireless local area network (WLAN) system, the method comprising:
- receiving, by a station (STA) from an access point (AP), a downlink (DL) physical protocol data unit (PPDU) including first control information related to a received signal strength indication (RSSI) threshold;
- determining, by the STA, whether to disable an enhanced distributed channel access (EDCA) operation of the STA based on the first control information;
- and
- transmitting, by the STA to the AP, an uplink (UL) PPDU including an operating mode (OM) control field,
- wherein the OM control field includes:
- a first sub-field having a length of 3 bits related to a number of reception (RX) spatial streams (SSs) of the STA,
- a second sub-field having a length of 2 bits related to a channel bandwidth of the STA,
- a third sub-field having a length of 1 bit related to whether to disable an uplink multi-user (UL MU) transmission of the STA,
- a fourth sub-field having a length of 3 bits related to a number of transmission (TX) SSs of the STA,
- a fifth sub-field having a length of 1 bit related to whether to disable an extended range single-user (ER SU) transmission of the STA, and
- a sixth sub-field having a length of 1 bit related to disabling the EDCA operation of the STA,
- wherein the first sub-field is contiguous to the second sub-field being contiguous to the third sub-field being contiguous to the fourth sub-field being contiguous to the fifth sub-field being contiguous to the sixth sub-field;
- and
- receiving, by the STA from the AP, a trigger frame soliciting a trigger-based (TB) PPDU transmission of the STA,
- wherein the trigger frame includes allocation information related to a resource unit (RU) allocated to the STA, wherein the RU has a size of 26 sub-carriers or 52 sub-carriers.
12 more elements
A station (STA) in a wireless local area network (WLAN) system, the STA comprising:
- a memory to store a transmission signal and a reception signal;
- and
- a processor connected to the memory,
- wherein the processor is configured to:
- receive, from an access point (AP), a downlink (DL) physical protocol data unit (PPDU) including first control information related to a received signal strength indication (RSSI) threshold;
- determine whether to disable an enhanced distributed channel access (EDCA) operation of the STA based on the first control information;
- and
- transmit, to the AP, an uplink (UL) PPDU including an operating mode (OM) control field,
- wherein the OM control field includes:
- a first sub-field having a length of 3 bits related to a number of reception (RX) spatial streams (SSs) of the STA,
- a second sub-field having a length of 2 bits related to a channel bandwidth of the STA,
- a third sub-field having a length of 1 bit related to whether to disable an uplink multi-user (UL MU) transmission of the STA,
- a fourth sub-field having a length of 3 bits related to a number of transmission (TX) SSs of the STA,
- a fifth sub-field having a length of 1 bit related to whether to disable an extended range single-user (ER SU) transmission of the STA, and
- a sixth sub-field having a length of 1 bit related to disabling the EDCA operation of the STA,
- wherein the first sub-field is contiguous to the second sub-field being contiguous to the third sub-field being contiguous to the fourth sub-field being contiguous to the fifth sub-field being contiguous to the sixth sub-field;
- and
- receiving, from the AP, a trigger frame soliciting a trigger-based (TB) PPDU transmission of the STA,
- wherein the trigger frame includes allocation information related to a resource unit (RU) allocated to the STA, wherein the RU has a size of 26 sub-carriers or 52 sub-carriers.
16 more elements
Dependencies are inferred from the claim text.