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A method and apparatus having improved handling of state transitions

A state and communication state technology, applied in the fields of computer programs, wireless communication networks, and computer program products, can solve the problems of impossible communication, consumption of wireless resources and battery resources, etc.

Active Publication Date: 2010-01-20
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] URA_PCH and CELL_PCH are paging states in which communication from UE to UTRAN is not possible and consumes minimum radio and battery resources of UE

Method used

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  • A method and apparatus having improved handling of state transitions
  • A method and apparatus having improved handling of state transitions
  • A method and apparatus having improved handling of state transitions

Examples

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Embodiment Construction

[0032] According to the scheme described here, it is recognized that a third generation wireless communication device, when moving from a paging state (such as URA_PCH or CELL_PCH) to CELL_FACH in order to perform a CELL or URA update procedure, will generally try to check the stored radio bearers of SRBs 1 to 4 information, and moves to the idle (IDLE) state if the check fails.

[0033] Correspondingly, the requirement to check the radio bearer mapping information of SRB1-4 in CELL_PCH / URA_PCH is changed so that the UE is not required to perform any of the checks mentioned in section 8.5.21 in this specific case. While performing the CELL update procedure in the CELL_PCH or URA_PCH state or the URA update procedure in the URA_PCH state, the UE transitions to the CELL_FACH state and then sends a cell update / URA update (CELLUPDATE / URA UPDATE) on SRB0.

[0034] If SRB1 does not have FACH mapping, the UTRAN will send a Cell Update Confirm / URA Update Confirm (CELL UPDATE CONFIRM / U...

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Abstract

A method, in a wireless communications device, for transitioning between communication states, the wireless communications device compliant for use in a Universal Mobile Telecommunications System (UMTS), the method comprising: checking for radio bearer mapping information for the communication state being transitioned to prior to sending an update message, where the transition between communication states is not a transition from a paging state to a bidirectional communication state using shared channels; and transitioning to the state to be transitioned to using the checked radio bearer mapping information for that state and sending the update message.

Description

technical field [0001] The present application generally relates to telecommunication systems, for example having application in UMTS (Universal Mobile Telecommunications System). The present application particularly relates to a method for transitioning between communication states in a wireless communication device. The present application also relates to a method for transitioning from a paging state to a two-way communication state using a shared channel in a wireless communication device. Furthermore, the present application relates to a wireless communication network. Furthermore, the present application also relates to a computer program and a computer program product. Background technique [0002] In a typical cellular radio system, mobile user equipment (UE) communicates with one or more core networks via a radio access network (RAN). User Equipment (UE) includes various types of devices such as mobile phones (also known as cellular phones or handsets), laptops w...

Claims

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Application Information

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IPC IPC(8): H04W76/04
CPCH04W72/04H04W76/046H04W76/27Y02D30/70
Inventor 安德鲁·法恩斯沃思苏普拉蒂姆·查克拉博蒂
Owner BLACKBERRY LTD
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