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Patent

Inter-system handoffs in multi-access environments

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TLDR
In this article, the authors propose a handoff protocol for mobile IP sessions between different access networks, e.g., a high rate packet data (HRPD) system and a long term evolution (LTE) system.
Abstract
Systems and methods according to these exemplary embodiments provide for handing off user equipment between different access networks, e.g., a high rate packet data (HRPD) system and a long term evolution (LTE) system. An existing mobile IP session can be maintained by the UE during the handoff.

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Citations
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Patent

System and method for enabling discovery of local service availability in local cellular coverage

TL;DR: In this article, the authors describe a set of systems, devices and methods that enable the identification of the type of connectivity available to a UE and enable session continuity for local cellular coverage, where selected IP traffic offloading is used to offload selected types of IP traffic towards a defined IP network close to the UE's point of attachment to the access network.
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System and method for enabling session context continuity of local service availability in local cellular coverage

TL;DR: In this paper, a method for use in a mobility management entity of a network in which simultaneous use of multiple serving gateways is supported, the method comprising: receiving a request for a handover (28-1), sending a request to create a session context to a target serving gateway (28 -2); receiving a response that includes information to enable creation of the session context (28,3); sending a message indicating that the session contexts of local connectivity has been deleted.
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Method, System, and Device for Network Handoff

TL;DR: In this article, a first evolved access network (eAN) sends a session transfer request to the target eAN that corresponds to the network handoff request, and the first eAN sends a Traffic Channel Assignment (TCA) message to a user equipment (UE) based on the session transfer response, so that the UE can switch from a Long Term Evolution (LTE) network to an evolved High Rate Packet Data (eHRPD) network based on TCA message.
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Methods and apparatus for cross-cell coordination and signaling

TL;DR: In this article, a UE associated with a serving eNB may receive control signaling from another non-serving eNB in a different cell, which is consistent with a characteristic of the eNB and associated cell.
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Method and apparatus for supporting handover from lte/eutran to gprs/geran

TL;DR: In this paper, a handover of a dual-mode wireless transmit/receive unit (WTRU) from an LTE system to a GERAN system using measurements of the LTE and GERAN frequencies and a decision by a source evolved Node B to perform the handover is presented.
References
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Patent

Method of transmitting and receiving radio access information in a wireless mobile communications system

TL;DR: In this article, the authors proposed a method of transmitting and receiving radio access information that allows a faster and an efficient way of establishing a radio connection between a terminal and a target base station while performing a handover for the terminal to a cell of the target BS.
Patent

Packet flow processing in a communication system

TL;DR: In this article, a resource reservation message includes packet flow parameter information used to determine flow treatment of the associated packet flow, which is based on the quality of service (QoS) of associated packet flows.

Problem Description: Reasons For Performing Context Transfers Between Nodes in an IP Access Network

James Kempf
TL;DR: This document discusses the desirability of context transfer for facilitating seamless IP mobility.
Patent

Method and apparatus to facilitate inter-an hrpd hard handoff

TL;DR: In this article, the authors proposed a peer-to-peer (P2P) approach to reduce the handoff delay associated with inter-AN (access network) HRPD (High Rate Packet Data)/1XEV-DO handoffs.
Patent

Method and system for inter-technology active handoff of a hybrid communication device

TL;DR: In this paper, a handoff of a hybrid mobile station (MS) between a legacy network implementing non-high rate packet data (non-HRPD) communication technology and a network implementing a high-rate packet data communication technology is discussed.
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