AID Reassignment Protocol Month Year doc.: IEEE 802.11-yy/xxxxr0 March 2012 AID Reassignment Protocol Date: 2012-03-14 Authors: Jeongki Kim, LG Electronics John Doe, Some Company

Authors: March 2012 Month Year doc.: IEEE 802.11-yy/xxxxr0 Jeongki Kim, LG Electronics John Doe, Some Company

Introduction Hierarchical AID Structure and grouping [1] March 2012 Introduction Hierarchical AID Structure and grouping [1] Based on hierarchical traffic bitmap, the STAs can be grouped into AID groups/pages STAs supporting different use cases can be easily grouped into different Pages E.g.,)Sensor stations (infrequent traffics)  Page 1, Offloading stations (frequent traffics)  Page 2 Jeongki Kim, LG Electronics

Needs for AID reassignment March 2012 Needs for AID reassignment For efficient channel access management, AP can change the page/group of a STA into another group Saturation of traffic density of a page/group Change of a STA’s traffic characteristic That is, a STA’s AID can be re-assignment for channel access management Jeongki Kim, LG Electronics

Needs for AID reassignment March 2012 Needs for AID reassignment Saturation of traffic density of a page/group Different classes of STAs can be grouped into different pages/groups e.g.,) Sensor STAs in Page/Group 1(low duty cycle) and Offloading STAs in Page/Group 2 (high duty cycle) STAs in the same class may be grouped to different groups for load distribution of a group e.g., Group 2/Group 3 for offloading STAs In real environment the traffic density of a group may be larger than that of other groups For load distribution of each group, AP may change the group of a STA Jeongki Kim, LG Electronics

Needs for AID reassignment March 2012 Needs for AID reassignment Change of the STA’s traffic characteristic The traffic characteristic of a STA may be changed E.g., when emergency traffic happens In case of the change of the STA’s traffic characteristic, a STA may request the change of AID group to AP (e.g., Low duty cycle (LDT) high duty cycle(HDT)) AP can re-assign the STA’s AID in response to the request of a STA or by unsolicited method Jeongki Kim, LG Electronics

AID reassignment protocol March 2012 AID reassignment protocol To assign AID dynamically, AP can re-assign a STA’s AID with management frame for channel access management STA can request to change its AID for channel access management i.e.,) Will move to another AID group AID assignment request frame STA sends AID assignment request to AP To query re-assigning its AID The details of the request frame are TBD AID assignment response frame AP sends AID assignment response to STA To announce re-assigned AID The details of the response frame are TBD Jeongki Kim, LG Electronics

Conclusion For efficient channel access management, March 2012 An AP should be able to re-assign a STA’s AID A STA may request the re-assignment of the STA’s AID to an AP associated with the STA Jeongki Kim, LG Electronics

March 2012 Straw Poll Do you support that a STA’s AID can be re-assigned for channel access management? Jeongki Kim, LG Electronics

Reference [1] 12/0388r0, “TGah Efficient TIM Encoding” March 2012 Jeongki Kim, LG Electronics

March 2012 Motion Do you support to include in the spec framework, in section 4.3, a STA’s AID can be re-assigned for channel access management? Jeongki Kim, LG Electronics