Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for reestablishing radio resource control (RRC) of user equipment (UE) under relay node (RN)

A technology of user equipment and relay nodes, applied in electrical components, wireless communication, connection management, etc., can solve problems such as failure to access successfully, achieve the effects of enhancing robustness, improving user experience, and avoiding interruption

Inactive Publication Date: 2011-11-09
ZTE CORP
View PDF1 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a method and system for RRC re-establishment of the user equipment under the relay node, so as to solve the problem that the UE under the RN cannot successfully access when re-establishing to the cell under the jurisdiction of the DeNB accessed by the RN. question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for reestablishing radio resource control (RRC) of user equipment (UE) under relay node (RN)
  • Method and system for reestablishing radio resource control (RRC) of user equipment (UE) under relay node (RN)
  • Method and system for reestablishing radio resource control (RRC) of user equipment (UE) under relay node (RN)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0046] A method for RRC reestablishment of user equipment under a relay node provided by the present invention, such as image 3 shown, including the following steps:

[0047] In step 301, the RN sends the C-RNTI allocated to the UE to the base station through a backhaul link, or the UE sends the C-RNTI allocated to it by the RN to the base station through an RRC connection reestablishment request.

[0048] Step 302, the base station generates the shortMAC-I of the UE according to the C-RNTI sent by the RN through the backhaul link, and when receiving the RRC connection reestablishment request from the UE, verifies the reliability of the UE according to the generated short MAC-I; or , the base station generates the short MAC-I of the UE according to the C-RNTI sent by the UE through the RRC connection re-establishme...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and system for reestablishing radio resource control (RRC) of user equipment (UE) under a relay node (RN). The method comprises the steps as follows: the RN sends a cell radio network temporary identifier (C-RNTI) distributed to the UE to a base station via a backhaul link, or the UE sends the C-RNTI distributed to the UE by the RN to the base station via an RRC connection reestablishment request; the base station generates a message authentication code for integrity (MAC-I) of the UE according to the C-RNTI sent by the RN and verifies the reliability of the UE according to the generated MAC-I when receiving the RRC connection reestablishment request message of the UE, or the base station generates the MAC-I of the UE according to the C-RNTI sent by the UE and verifies the reliability of the UE according to the generated MAC-I; and then the base station determines whether to receive the RRC connection reestablishment request of the UE according to the verification result. By using the method and system, the problem that the UE under the RN can not successfully access a cell of the RN-accessed base station during reestablishment is solved.

Description

technical field [0001] The present invention relates to relay technology in the field of mobile communication, in particular to a method and system for reestablishing RRC of user equipment under a relay node. Background technique [0002] In order to meet the growing demand for large bandwidth and high-speed mobile access, the Third Generation Partnership Project (3GPP, Third Generation Partnership Projects) has launched an Advanced Long-Term Evolution (LTE-Advanced, Long-Term Evolution advance) standard. LTE-Advanced retains the core of LTE for the evolution of the Long-Term Evolution (LTE, Long-Term Evolution) system. On this basis, a series of technologies are used to expand the frequency domain and time domain to improve spectrum utilization and increase system capacity. etc. purpose. The wireless relay (Relay) technology is one of the technologies in LTE-Advanced, which aims to expand the coverage of the cell, reduce the dead area in communication, balance the load, tr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/06H04W76/02
Inventor 邓云
Owner ZTE CORP