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WLAN interworking requirements: - Policy, QoS, & Charging

This presentation discusses the requirements for WLAN interworking, focusing on policy enforcement, external QoS mapping, and charging. It explores the impacts on the 802.11 standard and provides examples of specific requirements for each aspect.

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WLAN interworking requirements: - Policy, QoS, & Charging

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  1. WLAN interworking requirements:- Policy, QoS, & Charging Cheng Hong, Tan Pek Yew (Panasonic) WIEN 16th November 2004 Cheng Hong, Tan Pek-Yew, Panasonic

  2. WLAN issues for interworking • Policy Enforcement • External QoS Mapping • Charging Cheng Hong, Tan Pek-Yew, Panasonic

  3. Policy Enforcement Scope of the issue: • Issue concern how policy rules from the network are enforced within the IEEE 802.11 access point • Specific requirements placed on IEEE 802.11 by external network operators, where traffic enforcement policies are applied to user traffic. • This particularly applies to the scenario where multiple operators share the IEEE 802.11 hotspot infrastructure. Impacts on the 802.11: • Affect the Integration Services • May affect the Distribution Service • Implementation of the Portal function • Information delivery between the external network and the WLAN Cheng Hong, Tan Pek-Yew, Panasonic

  4. Enforcement example • Example Requirements :- • Provisioning at the AP • Integration/Distribution Service shall be able to identify PDU according to user identity • Integration Service shall be able to bind data traffic to VLAN or tunnel according to user identity/subscription • AP shall be able to obtain/interpret policy information from external network, e.g. convert the subscription info to VLAN ID • Enforcement of the traffic • Enforcement of the policy over the traffic should support per-user granulites • No interworking services shall be supported/no affected Cheng Hong, Tan Pek-Yew, Panasonic

  5. External QoS Mapping Scope of the issue: • Issues concerning specific external network requirements mapping to IEEE 802.11 • Issues concerning the co-ordination of admission control between the air interface and external networks Impact to the 802.11 : • Affect the Association/re-association service • May affect the Integration • Method for convey user’s QoS profile to WLAN • MLME/ SME implementation • Integration of the end-to-end QoS and 11 QoS (was beyond 11e scope) Cheng Hong, Tan Pek-Yew, Panasonic

  6. External QoS Mapping example • Example Requirements :- • Terminal side • MLME/SME shall be able to map end-to-end QoS requirements to 11e QoS parameters • MLME/SME shall be able to map 11e QoS status info to upper layer info for end-to-end QoS adjustment • Network side • QoS provisioning shall be per-user based • QoS provisioning shall be based on user subscription (info from the external network) • Admission Control/association service shall make use of the QoS profile delivered from the external network Cheng Hong, Tan Pek-Yew, Panasonic

  7. Charging Scope of the issue: • Specifically charging information, generated within the Access Point, is required to be communicate to the external network • IEEE 802.11u will define a mechanism to collect such information Impact to the 802.11 : • MLME impacts • Distribution/Integration Service • Information gathering (e.g. 11k like mechanism) • Communication with external network controls Cheng Hong, Tan Pek-Yew, Panasonic

  8. Charging examples • WLAN Needs to support both for the interworking • Charging offline charged interworking subscribers • Charging online charged interworking subscribers • Details in TS23.234 sec 7.7 & 7.8 • For online charging • WLAN needs to support realtime monitoring • AP should collect real time usage information and carry out the update • Information has to be updated to the charging entity in WLAN (AAA entities) • Needs to be able to revoke user connection based on credit/quota updates • Shall be able to support non-interworking users • Shall support co-existence of multiple interworking relationships • Charging should support dynamic provisioning (instead of static configuation) Cheng Hong, Tan Pek-Yew, Panasonic

  9. Conclusions • Focuses on three issues regarding interworking • Policy Enforcement, External QoS Mapping, Charging • Reviewed possible impacts on the 802.11 • Discussed example of the interworking cases and corresponding requirements for the development • More scenarios should be discussed and requirements be identified Cheng Hong, Tan Pek-Yew, Panasonic

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