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Method of resource control and softer handoff in centralized base station

A technology of resource control and softer switching, applied in the direction of electrical components, radio/inductive link selection arrangements, selection devices, etc., can solve the problem of discontinuous hard switching of baseband signal processing resources

Inactive Publication Date: 2009-07-15
UTSTARCOM TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0012] For this reason, the present invention proposes a channel processing unit migration technology to solve the hard handover problem caused by the discontinuous baseband signal processing resources in the above-mentioned large-scale centralized base station

Method used

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  • Method of resource control and softer handoff in centralized base station
  • Method of resource control and softer handoff in centralized base station
  • Method of resource control and softer handoff in centralized base station

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Embodiment Construction

[0022] Firstly, the structure of the centralized base station system using remote radio frequency units is described. As shown in Figure 2, the centralized base station system using remote radio frequency units is mainly composed of centrally installed central channel processing subsystems and remote radio frequency units (RRU), which are connected by broadband transmission links or networks. The central channel processing subsystem is composed of functional units such as a channel processing resource pool, a signal routing allocation unit, and a BSC / RNC interface unit. Among them, the BSC / RNC interface unit is responsible for completing the user plane and signaling plane processing of the BTS and BSC / RNC interface. The channel processing resource pool is formed by stacking multiple channel processing units to complete baseband signal processing. The channel processing resources are allocated dynamically according to the different traffic in the cells, so as to realize the eff...

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Abstract

The invention puts forward a technique of channel process unit transferring, which is to solve the hard handoff problem due to the discontinuity of channel resource in centralized base station. According to the invention, when the situation that needs to perform handoff based on the prior art occurs due to the move of mobile terminal, firstly selecting an appropriate objective channel process unit, then transferring the channel process task form the original channel process unit to the objective channel process unit, thereby avoiding the hard handoff between the different channel process unit so as to permit performing softer handoff process in the objective channel process unit.

Description

technical field [0001] The invention relates to the technical field of distributed base stations in mobile communication systems, in particular to a method for system resource control and softer handover in a centralized base station system using remote radio frequency units. technical background [0002] In a mobile communication system, a base station (BTS) completes the transmission, reception, and processing of wireless signals. A traditional BTS is mainly composed of a baseband processing subsystem, a radio frequency (RF) subsystem, and an antenna. A BTS can cover different areas through multiple antennas. A cell (cell), as shown in Figure 1(a), and each BTS is connected to a base station controller (BSC) or a radio network controller (RNC) through a certain interface, thus forming a radio access network (RAN) , as shown in Figure 1(b). [0003] Figure 2 shows another distributed base station, that is, the system structure of a centralized base station that uses remote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/00H04W36/18
CPCH04W36/18H04W36/00692
Inventor 刘晟李玉麟
Owner UTSTARCOM TELECOM CO LTD
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