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Link converting method in communication system

A technology of a communication system and a conversion method, which is applied in the field of link connection and conversion, can solve the problems of prolonged connection and long conversion time of link conversion, and achieve the effects of improving the connection rate, shortening the connection delay, and avoiding dropped calls.

Active Publication Date: 2009-12-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In the scenario where there is no block error on the air interface, the link conversion process in synchronous reconfiguration does not need to be very long and the connection can be completed smoothly. However, the network side reserves a relatively long conversion time to prevent link drop when the block error is high. , resulting in a very long connection delay for link switching in the scenario where there is no block error on the air interface

Method used

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  • Link converting method in communication system
  • Link converting method in communication system
  • Link converting method in communication system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0062] The first embodiment: at least two switching times are preset and sent to the UE at the same time; and the UE selects the switching time, and the specific method for switching between the old link and the new link at the switching time is: the UE collects all the links of the link switching message Time plus the transition preparation delay of the UE to obtain a first reference time, and select a transition time after the first reference time and the shortest transition time from the preset transition times as the actual transition time, during which the UE actually transitions Time to convert old and new links.

[0063] In this way, such an effect is achieved: in a scene with good signal coverage, the UE can easily receive all the link switching messages, and it will give priority to a short switching time, and in a scene with poor signal coverage, it will choose a longer switching time. So as to achieve the purpose of shortening the connection delay.

[0064] figur...

no. 3 example

[0103]The third embodiment: the network side presets the conversion time and sends it to the UE. The conversion time is set as immediate conversion or a shorter time than the existing conversion time. After the UE receives all the link conversion messages, it does not need to Downlink synchronization is performed on the new link, and the old link is switched according to the switching time, that is, the switching is performed immediately or within a short time; after receiving the link switching message, the UE returns to the network side through the old link. Route conversion complete message, that is, RB SETUP COMPLETE or RB RECONFIGCOMPLETE. The RNC on the network side learns that the UE has received all the link switching messages by receiving the link switching completion message, and notifies the NodeB on the network side to switch the old and new links on the network side according to the preset switching time, that is, switch immediately or Convert in a short time.

...

no. 4 example

[0124] Embodiment 4: The network side presets the switching offset delay and sends it to the UE; after the UE receives all the link switching messages, it determines a delay according to the preset switching offset delay and its own switching preparation delay. The agreed switching time, and switch between the old and new links according to the agreed switching time; UE sends the agreed switching time to the RNC through the old link; after receiving the agreed switching time, the RNC notifies the NodeB to follow the agreed switching time The agreed switching time is used to switch the old and new links on the network side.

[0125] The conversion bias delay is: the uplink delay from the UE to the network side, the processing delay of the control node on the network side, the transmission delay from the control node to the relay node on the network side, and the processing time of the relay node The sum of extension.

[0126] Figure 7 It is the information interaction flowch...

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Abstract

The invention discloses a link switching method in a communication system, which is characterized in that, in the link switching process, the communication user terminal UE selects the switching time after receiving all the link switching messages, and performs the switching at the switching time. For the conversion of the old and new links, at the same time, the link information of the UE is sent to the network side through the old link, and the network side performs the conversion of the old and new links on the network side according to the information reported by the UE. The invention can improve the connection time delay of link conversion under the condition that the link is not dropped.

Description

technical field [0001] The invention relates to link connection conversion technology of a communication system, in particular to a link conversion method for shortening connection time delay in a communication system. Background technique [0002] Connection delay is an important problem in Wideband Code Division Multiple Access (WCDMA) systems. Too long connection delay will directly affect the subjective experience of users and affect the loyalty of users to the WCDMA operating network. The link establishment in the connection process is divided into synchronous establishment and asynchronous establishment. Synchronous establishment is during the establishment process, the radio network controller (RNC) notifies the base station (NodeB) and the user terminal (UE) to switch from the old link to the new link at a specified switching time (CFN). Asynchronous establishment means that RNC establishes links for NodeB and UE respectively, but it does not guarantee that the new ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/02H04W76/04H04W36/00
CPCH04W36/02
Inventor 姜海涛汪洪源
Owner HUAWEI TECH CO LTD
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