Method and device for transceiving frame comprising partial association identifier in wireless lan system

Patent metadata

Field	Value
Publication number	US-2016338047-A1
Application number	US-201415106767-A
Country	US
Kind code	A1
Filing date	Jul 4, 2014
Priority date	Dec 20, 2013
Publication date	Nov 17, 2016
Grant date	—

Abstract

The present invention relates to a wireless communication system, and more specifically disclosed are a method and a device for transceiving a frame comprising a partial association identifier (PAID) in the wireless communication system. A method for transmitting the frame in a station (STA) of the wireless communication system according to one embodiment of the present invention comprises a step of transmitting the frame comprising a PAID field, and: if the frame is a frame other than a control frame when the frame is an uplink frame to be transmitted to an access point (AP), the value of the PAID field can be set as a value other than 0, which is calculated on the basis of BSSID (Basic Service Set ID) of the AP; and if the frame is the control frame when the frame is the uplink frame, the value of the PAID field can be set as 0.

First claim

1 . A method for transmitting a frame by a Station (STA) in a wireless communication system, the method comprising:
transmitting a frame including a Partial Association Identifier (PAID) field, wherein if the frame is an uplink frame transmitted to an Access Point (AP) and the uplink frame is not a control frame, the PAID field is set to a non-zero value calculated based on a Basic Service Set Identifier (BSSID) of the AP; and wherein if the frame is the uplink frame transmitted to the AP and the uplink frame is the control frame, the PAID field is set to zero.

2 . The method according to claim 1 , wherein if the uplink frame is not the control frame, a value of the PAID field is calculated by (dec(BSSID[39:47])mod(2 9 −1))+1 where BSSID denotes the BSSID of the AP, dec(A) denotes a decimal value of a binary number A, A[b:c] denotes bit b to bit c of the binary number A, when an initial bit of the binary number A is bit 0 , and mod denotes a modulo operation.

3 . The method according to claim 1 , wherein the frame is a non-Null Data Packet (non-NDP) frame.

4 . The method according to claim 1 , wherein the frame includes an uplink/downlink indication field, and the uplink/downlink indication field is set to a value indicating that the frame is the uplink frame.

5 . The method according to claim 1 , wherein a size of the PAID field is 9 bits.

6 . A Station (STA) for transmitting a frame in a wireless communication system, the STA comprising:
a transceiver; and a processor, wherein the processor is configured to transmit a frame including a Partial Association Identifier (PAID) field by controlling the transceiver, and wherein if the frame is an uplink frame transmitted to an Access Point (AP) and the uplink frame is not a control frame, the PAID field is set to a non-zero value calculated based on a Basic Service Set Identifier (BSSID) of the AP, and wherein if the frame is the uplink frame transmitted to the AP and the uplink frame is the control frame, the PAID field is set to zero.

7 . A method for receiving a frame by a Station (STA) in a wireless communication system, the method comprising:
receiving a frame including a Partial Association Identifier (PAID) field, wherein if the frame is a downlink frame received from an Access Point (AP) and the downlink frame is not a control frame, the PAID field is set to a value calculated based on an Association Identifier (AID) allocated to the STA by the AP and a Basic Service Set Identifier (BSSID) of the AP, and wherein if the frame is the downlink frame received from the AP and the downlink frame is the control frame, the PAID field is set to zero.

8 . The method according to claim 7 , wherein if the downlink frame is not the control frame, a value of the PAID field is calculated by dec(AID[0:8]+dec(BSSID[44:47] XOR BSSID[40:43])×2 5 )mod2 6 ,
where AID denotes the AID allocated to the STA, BSSID denotes the BSSID of the AP, dec(A) denotes a decimal value of a binary number A, A[b:c] represents bit b to bit c of the binary number A, when an initial bit of the binary number A is bit 0 , and mod denotes a modulo operation.

9 . The method according to claim 7 , wherein if the downlink frame is not the control frame, the value of the PAID field is set to a non-zero value.

10 . The method according to claim 7 , wherein if the frame is the downlink frame, the frame further includes a COLOR field, and the COLOR field is set to a value ranging from 0 to 7.

11 . The method according to claim 7 , wherein the frame is a non-Null Data Packet (non-NDP) frame.

12 . The method according to claim 7 , wherein the frame includes an uplink/downlink indication field, and the uplink/downlink indication field is set to a value indicating that the frame is the downlink frame.

13 . The method according to claim 7 , wherein a size of the PAID field is 6 bits.

14 . A Station (STA) for receiving a frame in a wireless communication system, the STA comprising:
a transceiver; and a processor, wherein the processor is configured to receive a frame including a Partial Association Identifier (PAID) field by controlling the transceiver, and wherein if the frame is a downlink frame received from an Access Point (AP) and the downlink frame is not a control frame, the PAID field is set to a value calculated based on an Association Identifier (AID) allocated to the STA by the AP and a Basic Service Set Identifier (BSSID) of the AP, and wherein if the frame is the downlink frame received from the AP and the downlink frame is the control frame, the PAID field is set to zero.

Assignees

• Lg Electronics Inc

Inventors

• Seok Yongho

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04B7/2643 Primary

  using time-division multiple access [TDMA] (H04B7/2615, H04B7/2618 take precedence) · CPC title

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W74/0816

  with collision avoidance · CPC title