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

• US 10,206,168 B2
• Filed: 06/01/2017
• Issued: 02/12/2019
• Est. Priority Date: 04/25/2005
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Sammour, Mohammed, Grandhi, Sudheer A., Chandra, Arty
• Primary Examiner(s): Chery, Dady
• Application Number:
  US15/610,714
• Publication Number:
  US 20170273021A1
• Time in Patent Office: 621 Days
• Field of Search: 370310, 370311, 370329, 370341, 370330
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 8/186 Processing of subscriber group data
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.

Claims

1. A wireless station (STA) comprising:

a transmitter;

a receiver; and

processor, wherein the STA is configured to;

transmit information to an access point (AP), wherein the information indicates that the STA has a capability to use power saving group information;

receive, from the AP, a management frame that includes an indication of an assigned group to which the STA is assigned;

receive a data frame from the AP, wherein the data frame comprises a data packet and a group identifier; and

determine whether the group identifier received in the data frame corresponds to the assigned group; and

enter a power saving mode on a condition that the group identifier received in the data frame does not correspond to the assigned group.

2. The STA of claim 1, wherein the STA is further configured to transmit traffic utilization information to the AP.

3. The STA of claim 1, wherein the STA is further configured to transmit power level information to the AP.

4. The STA of claim 1, wherein the STA is further configured to transmit a quality of service requirement to the AP.

5. The STA of claim 1, wherein the assigned group is based on a load balancing requirement.

6. A method associated with a station (STA), the method comprising:

transmitting information to an access point (AP), wherein the information indicates that the STA has a capability to use power saving group information;

receiving, from the AP, a management frame that includes an indication of an assigned group to which the STA is assigned;

receiving a data frame from the AP, wherein the data frame comprises a data packet and a group identifier;

determining whether the group identifier received in the data frame corresponds to the assigned group; and

entering a power saving mode on a condition that the group identifier received in the data frame does not correspond to the assigned group.

7. The method of claim 6, further comprising transmitting traffic utilization information to the AP.

8. The method of claim 6, further comprising transmitting power level information to the AP.

9. The method of claim 6, further comprising transmitting a quality of service requirement to the AP.

10. The method of claim 6, wherein the assigned group is based on a load balancing requirement.

11. An access point (AP) comprising:

a transmitter;

a receiver; and

processor, wherein the AP is configured to;

receive first information from a first station (STA), wherein the first information indicates that the first STA has a capability to use power saving group information;

receive second information from a second STA, wherein the second information indicates whether the second STA has a capability to use power saving group information;

transmit, to the first STA, a management frame that includes an indication of an assigned group to which the first STA is assigned; and

transmit, to the first STA, a data frame including a data packet and a group identifier to enable the first STA to determine whether the data packet is intended for the assigned group.

12. The AP of claim 11, wherein the AP is further configured to receive traffic utilization information from the first STA, and wherein the AP is further configured to assign the assigned group based on the traffic utilization information.

13. The AP of claim 11, wherein the AP is further configured to receive power level information from the first STA, and wherein the AP is further configured to assign the assigned group based on the power level information.

14. The AP of claim 11, wherein the AP is further configured to receive a quality of service requirement from each of a plurality of groups, and wherein the AP is further configured to assign the first STA to the assigned group based on the received quality of service requirements.