Prioritized Access Network Handover

Abstract

Disclosed an access network connection controller for ordering the mobile terminal from the connection to the first access network to switch to the connection to the second access network, in order to ensure that when the mobile terminal enters the connection to the first access network may be constrained and the second access network may be beneficial area to maintain a good connection to the mobile terminal. Access network connection controller may operate to receive mobile information representing the mobile terminal connected to the first access network; according to the mobile information to determine whether the mobile terminal is approaching the connection to the second access network may be beneficial to the constrained area; and before the mobile terminal enters the constrained area to generate an order to order the connected mobile terminal from the first access network to the second access network command. By ordering the mobile terminal to switch its connection to another access network before entering an area wherein the connection from its current access network to the mobile terminal may be constrained, always ensure a good connection to the mobile terminal, and the user of the mobile terminal has not experienced any performance degradation.

Description

technical field [0001] The invention relates to the technical field of packet core in wireless network. In particular, the invention relates to ordering a handover of a mobile terminal from a first access network to a second access network to ensure maintain a good connection to the mobile terminal. Background technique [0002] Throughout this document the term User Equipment (UE) is used. The term UE refers to any type of mobile terminal, such as a mobile phone, a personal digital assistant (PDA), etc., and the terms UE and mobile terminal are interchangeable. [0003] It is known that wireless networks may comprise an "Access Network Discovery and Selection Function" (ANDSF) as described, for example, in section 4.8 "Architecture enhancements for non-3GPP accesses" of the 3GPP specification 3GPPTS 23.402 V9.4.0 (March 2010). [0004] The packet core network and system referred to herein ("Evolved Packet Core Network" EPC, "Evolved 3GPP PS Domain" EPS) allows providing ...

AI Technical Summary

Problems solved by technology

[0043] 1. The access network has no coverage in that area

[0044] 2. The access network is congested or suffers from dysfunction in that area

[0046] 4. The UE 1001 is moving so fast that the handover procedure with respect to the relevant access network is likely not completed successfully

[0047] In all these examples, known systems suffer from the problem that UE 1001 is not connected to an access network for a period of time while finding and connecting to a new access network

[0048] Failure to provide seamless network connectivity is a serious problem for users of UE 1001 as it results in unacceptable degradation in performance

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