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Voice service bearing and switching method and system

A voice service and switching system technology, which is applied to voice service bearing and switching methods and system fields, can solve problems such as no specific solutions have been given, and achieve the effect of improving user experience

Active Publication Date: 2014-12-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, how to switch the original VoIP service to GSM (Global System for Mobile Communications) when the voice service is carried on HSPA and when UE (User Equipment, user equipment) moves to an area with weak HSPA signal communication system) cell technical problems, no specific solution has been given in the prior art

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  • Voice service bearing and switching method and system

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Embodiment Construction

[0029] The main purpose of the present invention is to realize voice service bearer on HSPA and quickly switch voice service to GSM circuit domain.

[0030] In order to achieve the above object, the present invention provides a voice service bearing method, including:

[0031] After the UE initiates a voice call in the HSPA cell, the base station allocates a wireless link for the UE, and at the same time triggers the core network side to establish a service bearer (RAB) for the voice service;

[0032] After the radio network controller (RNC) establishes a radio bearer (RB) for the voice service, it sends a RB establishment / reconfiguration message to the UE through the base station, indicating that the voice service is borne in HSPA.

[0033] Further, the wireless link allocated by the base station to the UE is established on an enhanced downlink control channel (DCH).

[0034] The specific interaction way of establishing the radio bearer is: the RNC (forwarded by the base sta...

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Abstract

The invention discloses a voice service bearing and switching method and a system. The voice service bearing method specifically comprises: after a UE initiates a voice call in a High Speed Packet Access (HSPA) cell, a wireless link is assigned to the UE by a Node B and a core network side is activated to set up a service bearer for a voice service; a radio bearer is set up for the voice service by an RNC, and an RB setup information or an RB reconfiguration information is sent by the Node B to the UE to indicate that the voice service of CS domain is borne on HSPA. The invention provides a solution for voice services to be borne on HSPA domain and to switch to GSM circuit domain, so that conversations can be established and maintained between two wireless covered areas for users.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically, to a voice service bearing and switching method and system. Background technique [0002] In cellular networks, circuit switching is usually the only way to provide voice services. With the introduction of 3G network, starting from the R5 version of UMTS (Universal Mobile Telecommunications System, universal mobile communication system), VoIP (Voice over Internet Protocol, voice transmission based on Internet Protocol) can be provided through the cellular network with acceptable call quality business, but because its spectrum efficiency is lower than that based on circuit switching, it is not widely used in actual engineering. With the introduction of High Speed ​​Downlink Packet Access (HSDPA) and High Speed ​​Uplink Packet Access (HSUPA) in the R7 / R8 version, they are collectively referred to as High Speed ​​Packet Access (HSPA). Packet Access (HSPA...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W76/02H04L1/00
Inventor 李小莉
Owner ZTE CORP