IEEE 802 21 MEDIA INDEPENDENT HANDOVER DCN 21

IEEE 802. 21 MEDIA INDEPENDENT HANDOVER DCN: 21 -10 -0066 -00 -0000 Title: Enabling Technologies for Multi-Radio Access Networks Date Submitted: 17 th March 2010 Presented at IEEE 802. 21 session #37 Orlando Authors or Source(s): Nageen Himayat (Intel) Abstract: see title 3/19/2018 1 1

IEEE 802. 21 presentation release statements This document has been prepared to assist the IEEE 802. 21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802. 21. The contributor is familiar with IEEE patent policy, as outlined in Section 6. 3 of the IEEE-SA Standards Board Operations Manual and in Understanding Patent Issues During IEEE Standards Development http: //standards. ieee. org/board/pat/guide. html> 3/19/2018 2 2

Enabling technologies for Multi-radio access networks 3/19/2018 3

Goals for Multi-Radio Access Interworking Enhanced Spectrum Utilization • Synergistic use of unlicensed bands with 802. 16 (Virtual Wi. MAX Carrier) • Use of 802. 16 in unlicensed and lightly licensed spectrum Manage Interworking of Multiple Radio Access Technologies with 802. 16 • 802. 16 provides control & management of multiple RATs (Converged Home) • 802. 16 enhances connectivity and cooperation for multi-radio devices (Mobile Hotspot) Support Efficient Multi-Radio Operation at Subscriber terminal • Address “multi-radio” and “single-radio” device implementations • Protocol support to enable multi-radio integration 3/19/2018 4

Usage Scenarios Home Converged Gateway coordinates transmissions and assists “capillary networks” 3/19/2018 5

Potential Techniques and their Advantages Idea Interworking Techniques Advantages Wi. Fi Off-Load Handoff to Wi. Fi Throughput gains ~3 x for indoor users Virtual Wi. MAX carrier • Carrier Aggregation • Qo. S/Load Balancing • Diversity /Redundancy • Reduced Control Overhead • Peak throughput (~2 -3 x) • Enhanced Qo. S • SINR (~3 -5 d. B), Lower Latency • Higher System Throughput Mobile Hotspot Connect LAN/PAN devices to WAN Improves connectivity, coverage Management & control with 802. 16 Control of in-home LAN/PAN/BAN interfaces, P 2 P connectivity • Security • In-home services, automated configuration • Seamless operation across RATs Multi-radio coexistence at Terminal Protocols to support multi-radio integration Efficient low-cost, low power devices Multi-RAT co-existence at Network Use of 802. 16 to allow communication between RATs Facilitates spectrum sharing in ‘lightly licensed’ bands, and multi-radio implementation 3/19/2018 6

Key Challenges for Network and Protocols • Determine interworking layer: IP, MAC or PHY Layer? • Address distributed, centralized and co-located multi-radio network interfaces • Measurements & reporting for application/link layer awareness across protocol stack Link awareness Link Generic Link Layer (GLL) awareness Define interworking functions and protocols (e. g. Generic link layer, Multi-radio resource management) • Resource Mgmt. & Qo. S, Spectrum Management, Multi-radio Resource Management, Self Configuration • Coexistence of heterogeneous RATs in unlicensed or lightly licensed spectrum Resource/ Performance Monitoring, Error & Flow Control, Access Selection MILI Application awareness 802. 11 802. 16 Others *MILI=Media Independent Link Interface 3/19/2018 7

Key Challenges for Devices • Interworking to address a mix of multiradio and single radio devices • Higher integration at network level can lead to better multi-radio integration in terminal • ANT#2 ANT#1 Interference to Modem #2 from Modem #1 RF#1 BB#1 Interference to Modem #1 from Modem#2 RF#2 BB#2 Coexistence Protocol support may be needed for – Coexistence: Managing interference across co-located radio transceivers – Cooperation: Managing interworking across multiple transceivers when hardware is shared Cooperation – Cognition: Intelligent use of spectrum resources available in network with fully integrated hardware Cognition 3/19/2018 Increasing Hardware Reuse 8