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Base station controller migration method under separation state

A technology of base station controller and separation state, applied in the field of handover of cellular mobile communication systems, can solve the problems of increasing the RNC signaling load, instantaneous interruption of user calls, service damage, etc., so as to avoid service damage and reduce signaling load. Effect

Inactive Publication Date: 2008-02-27
HUAWEI TECH CO LTD
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Problems solved by technology

[0006] However, in the prior art, when the SRNC judges that the separation state occurs, it either starts the migration of the RNC immediately, or does not perform the migration
If it is migrated immediately, in some cases, it will cause damage to the services currently used by users, such as instantaneous disconnection of user calls, etc.
On the other hand, due to the signaling load brought by the migration itself, when the user moves back and forth between the two NodeBs shown in Figure

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  • Base station controller migration method under separation state
  • Base station controller migration method under separation state
  • Base station controller migration method under separation state

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[0031] In the mobile communication system, according to the different requirements for transmission delay, the services provided by the mobile communication system are currently divided into four attributes, including: voice service (Conversational), streaming service (Streaming), interactive service (Interactive), Background business (Background). In general, these four attribute services have lower requirements for transmission delay. Among them, Conversational and Streaming services have specific QoS transmission delay restrictions, which are called real-time services. When the actual transmission delay is greater than the QoS transmission delay limit of the real-time service, the information received by the UE will be paused and discontinuous, which is easy to detect and even unbearable by human senses. Real-time services include voice and video streaming services. Interactive and Background services do not have specific transmission delay restrictions and are called non-real-...

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Abstract

This invention provides a migration method for a base station controller (RNC) at the separated state, in which, the area switched by a UE attributes to a target RNC (TRNC), when a service RNC (SRNC) is judged to be at the separation state, the method includes the following steps: A, judging if the service used by said UE currently contains the real time service, if so, the time delay limit value of QoS corresponding to said real time service is got to carry out the next step, otherwise, migration is refused and the flow is ended, B, obtaining the actual transmission time delay from SRNC to the UE, C, judging if the actual transmission time delay is larger than the real time service QoS time delay limit value, if so, the migration is started, otherwise the migration is refused and the flow is ended.

Description

technical field [0001] The invention relates to the handover technical field of a cellular mobile communication system, in particular to a base station controller (RNC) relocation method in a separated state. Background technique [0002] CDMA is a spread spectrum communication technology. A typical networking mode of the current CDMA system as shown in FIG. 1 includes: a core network (CN, Core Network), a base station controller (RNC), a base station (NodeB), and a user terminal (UE, User Equipment). CN and RNC are connected through Iu interface, RNCs are connected through Iur interface, RNC and NodeB are connected through Iub interface, and NodeB and UE are connected through Uu interface. The above-mentioned interfaces are specified in the CDMA protocol. Open standard interface. [0003] In the existing cellular mobile communication system, in order to improve the utilization rate of spectrum resources and the capacity of the whole system, the radio frequency power of th...

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Application Information

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IPC IPC(8): H04Q7/38H04W36/12H04W36/26
Inventor 邢平平谢超唯金明
Owner HUAWEI TECH CO LTD
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