RRC connection reconstruction enhancement method

A connection reconstruction and interface technology, applied in connection management, electrical components, wireless communication, etc., can solve problems such as interruption of user data transmission and degradation of user experience, and achieve the effect of improving user experience and business continuity

Inactive Publication Date: 2014-07-16
POTEVIO INFORMATION TECH
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AI Technical Summary

Problems solved by technology

RRC connection re-establishment often causes interruption of user data transmission and reduces user experience, so it is urgent to enhance the RRC connection re-establishment mechanism in heterogeneous networks

Method used

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  • RRC connection reconstruction enhancement method

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Embodiment Construction

[0056] This application provides an enhanced method for RRC connection re-establishment. The basic idea is that, in order to ensure successful RRC connection re-establishment and service continuity, when the UE initiates RRC connection re-establishment in a target cell that does not have a UE context, the UE's PCell The base station forwards the buffered data to the base station of the target cell. Wherein, the forwarded data includes data receiving status information and cached data.

[0057] The enhanced flow of RRC connection re-establishment provided by this application, such as Figure 12 shown, including the following steps:

[0058] Step 1101: The UE measures the channel quality of the primary serving cell PCell, and when a radio link failure RLF occurs in the PCell, the UE selects a suitable target cell and sends a radio resource control RRC connection reestablishment request;

[0059] Step 1102: The base station of the target cell judges whether there is context inf...

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Abstract

The invention discloses an RRC connection reconstruction enhancement method which comprises the following steps that A, UE measures channel quality of a PCell, and when RLF occurs in the PCell, the UE selects a proper target cell to send an RRC connection reconstruction request; B, a base station of the target cell judges whether context of the UE exists locally, if the answer is yes, the step C is executed, and if the answer is not, the step D is executed; C, the base station of the target cell sends a UE context request signal, and the base station of the target cell receives the signal carrying a UE context; D, the base station of the target cell sends a UE data forwarding request to a base station of the PCell of the UE; E, the base station of the target cell receives UE data forwarded by the base station of the PCell of the UE; F, the target cell responds to the RRC connection reconstruction request of the UE. By means of the scheme, lossless transmission of the data can be guaranteed when the UE carries out RRC connection reconstruction.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method for enhancing connection re-establishment of Radio Resource Control (RRC). Background technique [0002] As the types of data service applications become more and more extensive, and users' demand for data rates is increasing, the traditional network architecture based on cellular coverage can no longer fully meet the needs of service characteristics, which are mainly reflected in two aspects: (1) traditional cellular network Poor indoor coverage; (2) The capacity of traditional cellular networks in business hotspots is far from meeting demand. [0003] The reason why the traditional cellular network has poor indoor coverage is that the indoor penetration loss is relatively large. In addition, the operating frequency of the next-generation wireless communication system is relatively high, so it is difficult for indoor users to obtain high thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02
Inventor 高伟东张欢池连刚陈哲高兴航潘瑜林佩
Owner POTEVIO INFORMATION TECH
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