IP Library › Granted Patent US 12,389,327
Granted Patent B1
US 12,389,327 · App. 18/422,718 · Granted Aug 12, 2025

Method and apparatus for efficient addressing and power savings in wireless communications

Inventors: Mohammed Sammour (Alrabieh-Amman, JO); Sudheer A. Grandhi (Pleasanton, CA); Arty Chandra (Roslyn, NY)
Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
H04W52/0219H04L69/22
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Quick Facts
Patent No.
US 12,389,327
App. No.
18/422,718
Granted
Aug 12, 2025
Kind
B1
Abstract

A wireless station comprises a receiver that is configured to receive a frame from an access point (AP). The frame comprises a physical layer header. The physical layer header includes an indication of a color associated with the AP. A processor in the STA is configured to enter a power save state based on the color associated with the AP not matching a stored AP color of an AP that the STA is associated with. An AP that performs a similar function is also disclosed.

Claims (25)

1. A station (STA) comprising:

a receiver configured to receive, from an access point (AP), a frame comprising a physical layer (PHY) preamble including an indication of a color associated with the AP; and

a processor configured to decode the frame based on the indication of a color associated with the AP included in the PHY preamble matching a color of an AP that the STA is currently associated with.

2. The STA of claim 1 , wherein the processor is further configured to enter a power save state based on the indication of a color associated with the AP included in the PHY preamble not matching the color of the AP that the STA is currently associated with.

3. The STA of claim 1 , wherein the indication of a color associated with the AP is at least two bits.

4. The STA of claim 1 , wherein the indication of a color associated with the AP is included in a SIGNAL field of the PHY preamble.

5. The STA of claim 1 , wherein the STA is operating on a wireless frequency channel that a neighbor AP is also operating on.

6. The STA of claim 1 , wherein the frame is a data frame.

7. A method for use in a station (STA), the method comprising:

receiving, from an access point (AP), a frame comprising a physical layer (PHY) preamble including an indication of a color associated with the AP; and

decoding the frame based on the indication of a color associated with the AP included in the PHY preamble matching a color of an AP that the STA is currently associated with.

8. The method of claim 7 , further comprising:

entering a power save state based on the indication of a color associated with the AP included in the PHY preamble not matching the color of the AP that the STA is currently associated with.

9. The method of claim 7 , wherein the indication of a color associated with the AP is at least two bits.

10. The method of claim 7 , wherein the indication of a color associated with the AP is included in a SIGNAL field of the PHY preamble.

11. The method of claim 7 , wherein the STA operates on a wireless frequency channel that a neighbor AP is also operating on.

12. The method of claim 7 , wherein the frame is a data frame.

13. An access point (AP) comprising:

a transmitter configured to transmit, to a station (STA), a frame comprising a physical layer (PHY) preamble including an indication of a color associated with the AP;

wherein the indication of a color associated with the AP enables the STA to decode the frame based on the indication of a color associated with the AP included in the PHY preamble matching a color of an AP that the STA is currently associated with.

14. The AP of claim 13 , wherein the indication of a color associated with the AP enables the STA to enter a power save state based on the indication of a color associated with the AP included in the PHY preamble not matching the color of the AP that the STA is currently associated with.

15. The AP of claim 13 , wherein the indication of a color associated with the AP is at least two bits.

16. The AP of claim 13 , wherein the indication of a color associated with the AP is included in a SIGNAL field of the PHY preamble.

17. The AP of claim 13 , wherein the AP operates on a wireless frequency channel that a neighbor AP is also operating on.

18. The AP of claim 13 , wherein the frame is a data frame.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2025
From: INTERDIGITAL TECHNOLOGY CORPORATION
To: INTERDIGITAL PATENT HOLDINGS, INC.
Reel/Frame 070793/0352 →
Continuity (10)
Continuation 17873308 · Jul 26, 2022
Continuation 16896777 · Jun 9, 2020
Continuation 16272727 · Feb 11, 2019
Continuation 15610714 · Jun 1, 2017
Continuation 14684896 · Apr 13, 2015
Continuation 14162251 · Jan 23, 2014
Continuation 13036456 · Feb 28, 2011
Continuation 12539837 · Aug 12, 2009
Division 11406877 · Apr 19, 2006
Provisional Application 60674811 · Apr 25, 2005
References Cited (72)
US 5524021A · Scotton et al. · 1996 [cited by applicant]
US 5742833A · Dea et al. · 1998 [cited by applicant]
US 5960325A · Graham · 1999 [cited by applicant]
US 6397090B1 · Cho · 2002 [cited by applicant]
US 6650912B2 · Chen et al. · 2003 [cited by applicant]
US 6675008B1 · Paik et al. · 2004 [cited by applicant]
US 6856603B1 · Vollmer et al. · 2005 [cited by applicant]
US 6930994B1 · Stubbs · 2005 [cited by applicant]
US 7031742B2 · Chen et al. · 2006 [cited by applicant]
US 7062285B2 · Yue · 2006 [cited by applicant]
US 7257095B2 · Liu et al. · 2007 [cited by applicant]
US 7577438B2 · Sammour et al. · 2009 [cited by applicant]
US 7899462B2 · Sammour et al. · 2011 [cited by applicant]
US 7995583B2 · Del Prado Pavon et al. · 2011 [cited by applicant]
US 8639257B2 · Sammour et al. · 2014 [cited by applicant]
US 20010022780A1 · Mizutani et al. · 2001 [cited by applicant]
US 20020119796A1 · Vanghi · 2002 [cited by applicant]
US 20020150098A1 · Sharony · 2002 [cited by applicant]
US 20020159414A1 · Kanemoto et al. · 2002 [cited by applicant]
US 20020172186A1 · Larsson · 2002 [cited by applicant]
US 20030026240A1 · Eyuboglu et al. · 2003 [cited by applicant]
US 20030040319A1 · Hansen et al. · 2003 [cited by applicant]
US 20030083046A1 · Mathis · 2003 [cited by applicant]
US 20030169769A1 · Ho et al. · 2003 [cited by applicant]
US 20030179750A1 · Hasty, Jr. et al. · 2003 [cited by applicant]
US 20030193950A1 · Philips et al. · 2003 [cited by applicant]
US 20030207692A1 · Goldberg · 2003 [cited by applicant]
US 20040029622A1 · Laroia et al. · 2004 [cited by applicant]
US 20040063442A1 · Goldberg · 2004 [cited by applicant]
US 20040137908A1 · Sinivaara et al. · 2004 [cited by applicant]
US 20040180701A1 · Livet et al. · 2004 [cited by applicant]
US 20040187112A1 · Potter · 2004 [cited by applicant]
US 20040190468A1 · Saijonmaa · 2004 [cited by applicant]
US 20050014517A1 · Holland et al. · 2005 [cited by applicant]
US 20050015703A1 · Terry et al. · 2005 [cited by applicant]
US 20050025080A1 · Liu · 2005 [cited by applicant]
US 20050025135A1 · Chitrapu · 2005 [cited by examiner]
US 20050041662A1 · Kuo et al. · 2005 [cited by applicant]
US 20050053033A1 · Kelly et al. · 2005 [cited by applicant]
US 20050073964A1 · Schmidt et al. · 2005 [cited by applicant]
US 20060078001A1 · Chandra et al. · 2006 [cited by applicant]
US 20060164969A1 · Malik et al. · 2006 [cited by applicant]
CN 1284800 · 2001 [cited by applicant]
CN 1301099 · 2001 [cited by applicant]
EP 2312773 · 2011 [cited by applicant]
JP 2005039728 · 2005 [cited by applicant]
TW I411251 · 2013 [cited by applicant]
WO 9738499 · 1997 [cited by applicant]
WO 00060811 · 2000 [cited by applicant]
WO 0069209 · 2000 [cited by applicant]
WO 0239620 · 2002 [cited by applicant]
WO 03055149 · 2003 [cited by applicant]
WO 04026126 · 2004 [cited by applicant]
WO 04029770 · 2004 [cited by applicant]
WO 04109974 · 2004 [cited by applicant]
WO 05004500 · 2005 [cited by applicant]
WO 05008359 · 2005 [cited by applicant]
IEEE Standard for Local and metropolitan area networks; Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems, IEEE Std 802.16-2004 (Oct. 2004). [cited by applicant]
Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Sp… [cited by applicant]
Institute of Electrical and Electronics Engineers, Inc., 802.11n Working Group of the 802 Committee, Draft Amendments to Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Lo… [cited by applicant]
Institute of Electrical and Electronics Engineers, Inc., 802.11n Working Group of the 802 Committee, Draft Amendments to Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Lo… [cited by applicant]
Kuppa et al., “Modeling and Analysis of Frame Aggregation in Unsaturated WLANs with Finite Buffer Stations,” ICC 2006, IEEE International Conference on Communications, IEEE 802.11-04/0889r44, vol. 3, Jun. 2006, pp. 967-… [cited by applicant]
LAN MAN Standards Committee of the IEEE Computer Society, “Information Technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless … [cited by applicant]
Lawrence et al., “A Comparative Analysis of VoIP Support for HT Transmission Mechanisms in WLAN,” ICDCSW 2007, 27 [cited by applicant]
Lee et al., “Embodied Traffic Indication during Sleep-Mode,” IEEE C802.16e-04/194r1, IEEE 802.16 Broadband Wireless Access Working Group, Jul. 15, 2004, 6 pages. [cited by applicant]
Lee et al., “Embodied Traffic Indication during Sleep-Mode,” IEEE C802.16e-04/194, IEEE 802.16 Broadband Wireless Access Working Group, Jun. 25, 2004, 9 pages. [cited by applicant]
Mujtaba, “TGn Sync Complete Proposal,” IEEE 802.11-04/888r10 (Mar. 2005). [cited by applicant]
Mujtaba, “TGn Sync Proposal Technical Specification,” IEEE 802.11-04/889r1 (Nov. 4, 2004). [cited by applicant]
Nokia et al., MMRA Joint Proposal, TGn Sync Alliance Email, Feb. 1, 2005. [cited by applicant]
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Radio Link Control (RLC) protocol specification (Release 6),” 3GPP TS 25.322 V6.3.0 (Mar. 2005). [cited by applicant]
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Radio Link Control (RLC) protocol specification (Release 6),” 3GPP TS 25.322 V6.7.0 (Mar. 2006). [cited by applicant]
Third Generation Partnership Project, “Technical Specification Group Radio Access Network; Radio Link Control (RLC) protocol specification (Release 7),” 3GPP TS 25.322 V7.0.0 (May 2006). [cited by applicant]