doc.: IEEE /0854r0 Submission NameAffiliationsAddressPhone Zhuang Yan Huawei Technologies 101 Software Avenue Yuhua District, Nanjing , P.R.China ei.com Wang Yungui Huawei Technologies 101 Software Avenue Yuhua District, Nanjing , P.R.China Gu Yingjie Huawei Technologies 101 Software Avenue Yuhua District, Nanjing , P.R.China ISD Use Cases Date: July 2012 Slide 1 Authors: Huawei.

doc.: IEEE /0854r0 SubmissionSlide 2 Abstract Services Discovery for different scenarios Some use case suggestions and requirements for the Infrastructure Service Discovery Study Group meeting, July 2012, San Diego, CA, USA July 2012 Huawei

doc.: IEEE /0854r0 Submission Outline Use Case 1: Local Service Discovery within a High Density Environment –A Railway Station Environment Use Case 2: Long Range Service Discovery within a Multiple AP Environment –An Enterprise Environment Use Case 3: Service Discovery based on Location Detection –Local Conference Service July 2012 HuaweiSlide 3

doc.: IEEE /0854r0 Submission July 2012 HuaweiSlide 4 Use Case 1: Local Service Discovery within a High Density Environment –A Railway Station Environment

doc.: IEEE /0854r0 Submission Local Service Discovery within a High Density Environment: A Railway Station Environment July 2012 HuaweiSlide 5 Description : John enters the hall of a railway station and wants to find a coffee shop to wait for his friend. His smart phone sends requests for service discovery. The Station AP replies with service content in it. John’s smart phone displays the content on the screen and John finds the advertisements of coffees. Then he selects a coffee shop for more information, such as coffee types and shop location etc. al. The Station AP will provide him more information of the shop.

doc.: IEEE /0854r0 Submission Use Case 1: Sequence of Events The user device requests service discovery. The AP, supporting service discovery, provides a service content. The user selects the wanted service and asks for more information. The AP looks up the service list with requested service and replies with a detailed information of the service. The user device displays the detailed information of the requested service for a further association decision, to get the service through the WLAN. July 2012 HuaweiSlide 6

doc.: IEEE /0854r0 Submission Use Case 1: Summary of Requirements Service devices should publish their service capability to the associated AP. The requesting devices should be able to request for service discovery, including discovering further information of a preferred service. The AP should be able to provide service content and detailed service information according to requesting devices’ request. July 2012 HuaweiSlide 7

doc.: IEEE /0854r0 Submission July 2012 HuaweiSlide 8 Use Case 2: Long Range Service Discovery within a Multiple AP Environment An Enterprise Environment

doc.: IEEE /0854r0 Submission Long Range Service Discovery within a Multiple AP Environment: An Enterprise Environment July 2012 HuaweiSlide 9

doc.: IEEE /0854r0 Submission Use case 2: Descriptions Description (1): There are 2 types of WLANs in an hall of XX Company Base N. AP1 is open for display service and common information service. AP2 is security for printer service and scanner service, et al. Moreover, AP2 can reach the remote WLANs, which are AP3 and AP4. AP3 is an security WLAN in Base N for project information, upload service etc al. ， while AP 4 is a remote WLAN in Base S for data service of Base S, such as service. Dan and Emily enters the hall. Dan is an Employee of the company whose base is S. He is here for a project conference and now wants to check project information and meeting agenda in Base N, meanwhile check his on the server in Base S. Emily is a graduate student, coming for an interview. She wants to find out the arrangement of her interview and room information. July 2012 HuaweiSlide 10

doc.: IEEE /0854r0 Submission Use case 2: Descriptions Description (2): For Emily:  Emily requests service discovery through her smart phone.  AP1 and AP2 provides their service contents.  She finds that the common information may help, hence, sends further request with “common information” to AP1 for further information.  AP1 replies with detailed descriptions of the “common information”, –including map service and interview service, etc.  Then Emily may decide to associate to AP1 for further checking – details of her interview arrangement. July 2012 HuaweiSlide 11

doc.: IEEE /0854r0 Submission Use case 2: Descriptions Description (3): For Dan:  When Dan receives service content lists from both APs. He finds that AP2’s reachable WLANs AP3 and AP4 can provide his services.  Dan sends a further request with “ service” and “project information service” to AP2.  AP2 checks the two services and replies information of these two services, e.g. access policy et al.  Dan’s smart phone displays these further information. Then he may use his WLAN access ID in Base S or ask for a temporally ID from the Front Desk based on the policies, then associate to AP2. July 2012 HuaweiSlide 12

doc.: IEEE /0854r0 Submission Use Case 2: Sequence of Event The user device requests service discovery. The AP supports the service discovery, provides the service content. The user finds that the service he/she wants belongs to another WLAN, but can reach through the local AP. Then user device sends a request to local AP with the particular service(s) for further information, such as access policy etc al. The local AP checks and replies with detailed information of remote services. The user device receives the response and checks whether he/she has the authentication to access the service WLAN through current WLAN, and then make an association decision. July 2012 HuaweiSlide 13

doc.: IEEE /0854r0 Submission Use Case 2: Requirements Summary AP should be able to be configured whether it can provide services to other APs. AP should be able to provide requesting devices its local services, as well as services information provided by its reachable APs. Service devices should publish their service capability to the associated AP. The requesting devices should be able to request for service discovery, including discovering further information of a preferred service. July 2012 HuaweiSlide 14

doc.: IEEE /0854r0 Submission July 2012 HuaweiSlide 15 Use Case 3: Service Discovery based on Location Detection Local Conference Service

doc.: IEEE /0854r0 Submission Use Case 3: Service Discovery based on Location Detection——Local Conference Service July 2012 HuaweiSlide 16 Description: John enters a conference room and requests to finds the projector service. The AP that has projector service, discovers John’s mobile device is within the Wi-Fi Direction connection area of the projector, then AP notifies his mobile device and the Projector to enable their WiFi-direct with some suggested information, such as suggested channel etc. The Projector opens its WiFi-direct, perhaps listening on the suggested channel, ready to provide service. John may also open WiFi-direct and set up a direct link on the suggested channel from AP.

doc.: IEEE /0854r0 Submission Use Case 3: Sequence of Event The user requests to use a projector. The AP detects that the user device within the Wi-Fi Direct connection area of a Projector. The AP notifies the two devices to enable the WiFi Direct and provide a suggested channel to avoid interference with other existing channels. The user device and the projector receives the notification and set up a direct link on the AP’s suggested channel. July 2012 HuaweiSlide 17

doc.: IEEE /0854r0 Submission Use Case 3: Requirements Summary The requesting devices should be able to request for service discovery, including discovering further information of a preferred service. The AP should be able to know device capability of requesting and requested STAs, such as support Wi-Fi Direct. The service devices and requesting device should be able to enable/disable their Wi-Fi direct to save power consumption. The AP should be able to detect positions of devices. The AP should be able to notify devices to enable their Wi-Fi direct with a suggested channel etc. to set up a direct link. July 2012 HuaweiSlide 18

doc.: IEEE /0854r0 Submission Any Question? Thank you! July 2012 HuaweiSlide 19