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Local call local switching at handover

A local switching, local technology, used in connection management, wireless communication, electrical components, etc.

Active Publication Date: 2019-04-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However there are still many problems about eg how to hand over user equipments (UEs) that have an ongoing call locally switched to a target BSS or RNS that does not support LCLS features

Method used

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  • Local call local switching at handover
  • Local call local switching at handover
  • Local call local switching at handover

Examples

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Embodiment Construction

[0050] The following detailed description of example embodiments refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. The following detailed description also does not limit the invention. For simplicity, the following embodiments are discussed with respect to example terms and structures. However, the embodiments to be discussed next are not limited to systems using such terms and structures but can be applied to other telecommunication systems.

[0051] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, particular feat...

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Abstract

A method for managing a locally switched call connection in a wireless communication network is described, the method comprising receiving at a core network node (118) a first message (218, 317) indicating that a target radio has been accessed A first user equipment (102) connected via a locally switched call connection is detected in the node; and the first message (218, 317) triggers the sending of a second message (220, 318) requesting communication with the second user equipment The state of the locally switched call connection of (104) changes to switch the user plane data path (100) from the first user equipment (102) to the second user equipment (104) to the core network path (109). In addition, the method is implemented in the network node 600, whereas the method steps may be performed by means of a computer program product comprising instructions for performing each method step.

Description

technical field [0001] The present invention relates generally to telecommunication systems and in particular to methods, systems, devices and software associated with a local call local switch at handover in a radio communication system. Background technique [0002] Radiocommunication networks were originally developed primarily to provide voice services over circuit-switched networks. The introduction of packet-switched bearers in eg so-called 2.5G and 3G networks enables network operators to provide data services as well as voice services. Ultimately, network architectures will likely evolve towards full Internet Protocol (IP) networks that provide both voice and data services. Network operators however have significant investments in existing infrastructure and will therefore generally prefer a gradual migration to an all-IP network architecture in order to allow them to extract sufficient value from their investment in existing infrastructure. Also in order to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/20H04W36/00
CPCH04W36/10H04W36/0011H04W36/0016
Inventor C-G·珀森P·施利瓦-伯特林D·安东森P·霍奇斯
Owner TELEFON AB LM ERICSSON (PUBL)