Page 1 Notice © All rights reserved. Qualcomm Incorporated grants a free, irrevocable license to 3GPP2 and its Organizational Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner ’ s name any Organizational Partner ’ s standards publication even though it may include all or portions of this contribution; and at the Organizational Partner ’ s sole discretion to permit others to reproduce in whole or in part such contribution or the resulting Organizational Partner ’ s standards publication. Qualcomm Incorporated is also willing to grant licenses under such contributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing an Organizational Partner ’ s standard which incorporates this contribution. This document has been prepared by the Qualcomm Incorporated to assist the development of specifications by 3GPP2. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on Qualcomm Incorporated. Qualcomm Incorporated specifically reserve the right to amend or modify the material contained herein and nothing herein shall be construed as conferring or offering licenses or rights with respect to any intellectual property of the Qualcomm Incorporated other than provided in the copyright statement above. Redirection from eHRPD to LTE Source: Qualcomm Incorporated, ZTE Corporation, China Telecom, Nokia Siemens Networks Contact: George Cherian/ Jen Chen, Yuanfang Yu/ Ting Lu, LuPeng Li, John Harris June 28, 2011

Page 2 eHRPD to LTE handoff Current Status –C.S0087 defines E-UTRA record that allows idle handoff from eHRPD to LTE However, the current mechanism does not allow network to selectively redirect eATs during active mode, which will be helpful for the following scenarios: –Load balancing –Handoff from eHRPD to LTE when LTE is available.

Page 3 AN based redirection to E-UTRA

Page 4 Modifications to existing C.S0087

Page 5 Measurement Trigger for E-UTRA measurements –Extend “RouteUpdateRequest” message in Route-Update- Protocol Add E-UTRA channel record (see earlier slide) –ChannelIncluded field may be set to ‘0’ if network is requesting measurement report only for E-UTRA channels –Inclusion of E-UTRA channel record indicates the UE to send E-UTRA measurements UE support of E-UTRA measurements support indicated using SupportRouteUpdateEnhancements attribute –UE reports all Physical cell IDs on the channel requested

Page 6 Measurement Reporting Option-1: Extend “RouteUpdate Message” in Route-Update-Protocol –Add a new E-UTRA record to RouteUpdate message »NumPilots is set to ‘0’ when only E-UTRA signal strength is included FieldLength (bits) NumEUTRAPhysCell3 NumEUTRAPhysCell occurrences of the following field { PhysCellIdEUTRA9 EARFCNIncluded1 EARFCN0 or 16 RSRQIncluded1 RSRQ-Range0 or 7 RSRPIncluded1 RSRP-Range0 or 6 } Option-2:Add a new measurement report message with the above parameters

Page 7 Redirection from eHRPD to LTE Extend “Redirect” Message defined in default Air-link Management Protocol –Add the E-UTRA channel record –Add the E-UTRA physical cell ID(optional) FieldLength (bits) SystemType8 EARFCN16 FieldLength MessageID8 NumChannel8 NumChannel instance of the following field Channel24 Redirect Message definition (ALMP of C.S0024) E-UTRA channel record (proposed) System Type is set to E-UTRA Bandclass(5 bits) and ChannelNumber(11 bits) fields are combined to represent EARFCN