Pre-Grant Publication Number: 20110117905
Lte rrc connection re-establishment requesting method, cause value setting method and terminal
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#1256Universal Mobile Telecommunications System (UMTS); Radio Resource Control (RRC);Protocol specification; (3GPP TS 25.331 version 7.6.0 Release 7)
Applies to Claims 1
Submitted by: Susan MurrayLast updated: almost 2 years ago
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Summary / Description
Summary / DescriptionThe present document specifies the Radio Resource Control protocol for the UE-UTRAN radio interface.
 
Basic Information
Type of Prior ArtPrint Publication
 
Publication Title *ETSI TS 125 331 V7.6.0 (2007-10)
 
Author
 
ISBN
 
Page Rangepp 97-170 appear to be most re
 
MediumBook excerpt
 
Publication Date *October 2007
 
URLhttp://docbox.etsi.org/.../TS12...
 
Notes / To Do
Notes
 
Excerpt
Excerpt
See, for example, 8.1.4.4 para 4, 8.1.8.2 para 2, 8.1.12.4a para 1, 8.1.12.4c para 2, 8.1.12.6 para 1 etc.
 
Relevance
Claims
1
A method for setting a cause value for an RRC connection re-establishment request of an LTE terminal, wherein scenarios in which the LTE terminal needs to initiate an RRC connection re-establishment request including that: (1) a UE detects radio link failure; (2) a cell handoff fails in E-UTRAN; (3) an RLC identification reaches the maximum retransmission times, and needs to be reset; (4) RRC connection reconfiguration fails; wherein the RRC connection reconfiguration failure further including: (a) measurement configuration failure; (b) mobility control (including security configuration), i.e. handoff, failure; (c) non-access stratum dedicated information configuration failure; (d) dedicated radio resource configuration failure;and (e) UE-related information configuration failure;when scenario (1) and case (d) of scenario (4) occur, the LTE terminal adding a flag bit into an RRC connection re-establishment request message, indicating a failure is reason is the radio resource failure;when scenario (2) and case (b) of scenario (4) occur, the LTE terminal adding a flag bit into an RRC connection re-establishment request message, indicating a failure reason is the handoff failure;when scenario (3) occurs, the LTE terminal adding a flag bit into an RRC connection re-establishment request message, indicating a failure reason is the bottom layer error;when case (a), (c), (e) of scenario (4) occur, the LTE terminal adding a flag bit into an RRC connection re-establishment request message, indicating a failure reason is the UE error.
Relevance
at least some elements are disclosed ... see above notes
at least some elements are disclosed ... see above notes
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