Method and apparatus for transmitting and receiving frame including partial association identifier in wireless LAN system

• US 9,585,058 B2
• Filed: 04/24/2013
• Issued: 02/28/2017
• Est. Priority Date: 04/24/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seok, Yongho, Han, Seunghee
• Primary Examiner(s): Wu, Jianye
• Application Number:
  US14/397,687
• Publication Number:
  US 20150131640A1
• Time in Patent Office: 1,406 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method and apparatus for transmitting and receiving a frame including a partial association ID (PAID) in a wireless LAN (WLAN) system are disclosed. A method for transmitting a frame from a station (STA) to an access point (AP) in a wireless communication system includes: calculating a partial association ID (Partial AID) on the basis of a basic service set ID (BSSID) of the AP; and transmitting the frame including a partial AID field set to a specific value corresponding to the calculation result of the partial AID to the AP. The partial AID is calculated by applying a modulo operation to a specific value obtained by converting values ranging from a 40^th bit position to a 48^th bit position from among 48 bit positions of the BSSID of the AP into a decimal number.

Claims

1. A method for transmitting a frame from a station (STA) to an access point (AP) of a wireless communication system, the method comprising:

setting, by the STA, a partial association ID (AID) field of the frame to a partial AID value; and

transmitting, by the STA, the frame including the partial AID field set to the partial AID value,

wherein when the frame is addressed to the AP, the partial AID value corresponds to (BSSID[39;

47])mod(2⁹−

1))+1, where ‘

A[b;

c]’

denotes bits from Bit b to Bit c of a binary number A when an initial bit of the binary number A is denoted by Bit 0, and ‘

mod’

denotes a modulo operation.

2. The method according to claim 1, wherein the partial AID (PAID) is set to one of 1 to 511.

3. The method according to claim 1, wherein the partial AID (PAID) field is included in a Signal A (SIG-A) field of the frame.

4. The method according to claim 1, wherein the frame is a single user (SU) frame.

5. The method according to claim 1, wherein the frame is defined at a sub-1 GHz operation frequency.

6. The method according to claim 1, wherein the frame further includes a field indicating whether the frame has a single user (SU) frame format or a multi-user (MU) frame format.

7. The method according to claim 1, wherein the frame excludes a group ID (GID) field.

15. The method according to claim 6, wherein the partial AID field is included in the frame only when the field indicates the SU frame format.

8. A method for receiving a frame from a station (STA) at an access point (AP) of a wireless communication system, the method comprising:

receiving, from the STA by the AP, the frame including a partial association ID (AID) field;

checking, by the AP, whether a value of the partial AID field of the frame reflects a basic service set ID (BSSID) of the AP; and

decoding, by the AP, the frame, if the value of the partial AID field of the frame reflects the BSSID,

wherein when the frame is addressed to the AP, the partial AID corresponds to (BSSID[39;

47])mod(2⁹−

1))+1, where ‘

A[b;

c]’

denotes bits from Bit b to Bit c of a binary number A when an initial bit of the binary number A is denoted by Bit 0, and ‘

mod’

denotes a modulo operation.

9. The method according to claim 8, wherein the partial AID (PAID) is set to one of 1 to 511.

10. The method according to claim 8, wherein the partial AID (PAID) field is included in a Signal A (SIG-A) field of the frame.

11. The method according to claim 8, wherein the frame is a single user (SU) frame.

12. The method according to claim 8, wherein the frame is defined at a sub-1 GHz operation frequency.

13. A station (STA) device for transmitting a frame to an access point (AP) of a wireless communication system comprising:

a processor that sets a partial association ID (AID) field of the frame to a partial AID value; and

a transceiver that transmits, to the AP, the frame including the partial AID field set to the partial AID value,

wherein when the frame is addressed to the AP, the partial AID value corresponds to (BSSID[39;

47])mod(2⁹−

1))+1, where ‘

A[b;

c]’

denotes bits from Bit b to Bit c of a binary number A when an initial bit of the binary number A is denoted by Bit 0, and ‘

mod’

denotes a modulo operation.

14. An access point (AP) device for receiving a frame from a station (STA) of a wireless communication system comprising:

a transceiver that receives, from the STA, the frame including a partial association ID (Partial AID) field; and

a processor that checks whether a value of the partial AID field of the frame reflects a basic service set ID (BSSID) of the AP and decodes the frame if the value of the partial AID field reflects the BSSID,

wherein when the frame is addressed to the AP, the partial AID corresponds to (BSSID[39;

47])mod(2⁹−

1))+1, where ‘

A[b;

c]’

denotes bits from Bit b to Bit c of a binary number A when an initial bit of the binary number A is denoted by Bit 0, and ‘

mod’

denotes a modulo operation.