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Witching method between systems

A gap and gating technology, applied in the field of inter-system handover, can solve problems such as loss of power control bit information, link quality degradation, and data transmission link performance deterioration, so as to improve resource utilization and prevent link signal quality. The effect of reducing and shortening the transmission interval

Inactive Publication Date: 2004-09-22
北京智讯伙伴科技有限公司
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AI Technical Summary

Problems solved by technology

Due to the large gap generated by the compressed mode, more power control bit information may be lost, resulting in poor performance of the data transmission link. In the process of switching between systems, the signal quality itself has deteriorated, and accurate power control is required. control to prevent link quality degradation, so existing handover methods between systems are not conducive to preventing link quality degradation

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] The DPCCH gating technology is applicable to uplink and downlink data transmission links. When there is no data to be sent, stop sending DPCCH, and when there is data to be sent, resume the sending of DPCCH and DPDCH (dedicated physical control channel and dedicated physical data channel). Since the gating technology adopts the above scheme, compared with the compression mode, the gating gap generated by it in a data frame is discontinuous, making the gating gap smaller. If the gating technology is used to switch between systems, the lost TPC information is less. The essence of the present invention is that the UE performs inter-system cell synchronization and measurement through the gap generated by the DPCCH gating technology, which can maintain the continuity of power control and improve the performance of inter-system switching while providing the ...

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Abstract

A method of switching between systems includes the following steps: using the User's equipment to detect signal quality of original primary, if detected quality of signal is lower than predefined threshold the measured result will be reported to network and the network will define to apply gate control technique of special physical control channel for carrying on measurement between systems and also to dispose transmission format set, UE and DPCCH gate control parameter at base station side according to the reported result; UE and network side will carry on gate control according to the gate control parameter, UE will also carry on quality measurement of signal and synchronization for adjacent system primary by using gap created with DPCCH gate control technique and to report measuring report to network.

Description

technical field [0001] The invention relates to a handover method between different base stations for user equipment (UE) in a mobile communication system, especially a handover method between systems. Background technique [0002] In a mobile communication system, when a UE moves from a local base station to a target base station, handover between base stations is usually involved. Since the wireless access methods of the two base stations may be different, inter-system handover is caused. The existing inter-system handover scheme is completed using the compressed mode. The specific method is: when the UE detects that the signal quality of the original cell is lower than a certain predefined threshold, it reports the measurement result to the network. According to the reported result, the network Configure the compressed mode parameters on the UE and the base station side through signaling and start the compressed mode. The UE performs synchronization and signal quality mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04B7/26H04W36/14
Inventor 李志明
Owner 北京智讯伙伴科技有限公司