1. doc.: IEEE 802.11-12/0364r3 SubmissionJeongki Kim, LG ElectronicsSlide 1 AID Reassignment Protocol Date: 2012-05-14 Authors: May 2012

2. doc.: IEEE 802.11-12/0364r3 SubmissionJeongki Kim, LG ElectronicsSlide 2 Authors: May 2012

3. doc.: IEEE 802.11-12/0364r3 SubmissionJeongki Kim, LG ElectronicsSlide 3 Introduction 802.11 ah requirements need to support large number of stations (e.g., 6000 stations) [1] Grouping STAs into a group can be useful to efficiently manage large number of stations An AID set may also be used for a group and it can reduce the TIM overhead [2]. That is, AID can imply the group ID –E.g.,) AIDs (0~1000) is used for Group 1, AIDs(1001~2000) is used for Group 2 STAs supporting different use cases will be grouped into different Pages May 2012

4. doc.: IEEE 802.11-12/0364r3 SubmissionJeongki Kim, LG ElectronicsSlide 4 Needs for AID reassignment In some case AP may change the page/group of a STA into another group for channel access management –Saturation of traffic density of a page/group –Change of a STA’s traffic characteristic To change the group of a STA, AP will reassign the STA’s AID May 2012

5. doc.: IEEE 802.11-12/0364r3 Submission 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 ElectronicsSlide 5 May 2012

6. doc.: IEEE 802.11-12/0364r3 Submission 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 ElectronicsSlide 6 May 2012

7. doc.: IEEE 802.11-12/0364r3 Submission 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 ElectronicsSlide 7 May 2012

8. doc.: IEEE 802.11-12/0364r3 Submission Conclusion In some case, AP may change the group of a STA for efficient channel access management (e.g., for load distribution of channels) To change the group of a STA, an AP will re-assign a STA’s AID An STA may request the re-assignment of the STA’s AID to an AP associated with the STA Jeongki Kim, LG ElectronicsSlide 8 May 2012

9. doc.: IEEE 802.11-12/0364r3 Submission Straw Poll Do you support that a STA’s AID can be re-assigned for channel access management? Jeongki Kim, LG ElectronicsSlide 9 May 2012

10. doc.: IEEE 802.11-12/0364r3 Submission Reference [1] 11/11-905r3 “TGah Functional Requirements and Evaluation Methodology.” [2] 12/0388r1, “TGah Efficient TIM Encoding” Jeongki Kim, LG ElectronicsSlide 10 May 2012

11. doc.: IEEE 802.11-12/0364r3 Submission 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 ElectronicsSlide 11 May 2012