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Prevent transmission of measurement reports from UE when UE is in inactive mode and drx is applied

A technology of measurement report and inactivity timer, applied in the field of wireless communication

Active Publication Date: 2019-05-17
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although DRX achieves power saving, especially for long DRX periods above about 640 ms, for high-speed user equipment, and for smaller cells of heterogeneous networks, DRX may introduce mobility challenges because in DRX mode Medium UE does not need to perform as many measurements as in non-DRX mode (e.g. during active data transfer sessions)

Method used

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  • Prevent transmission of measurement reports from UE when UE is in inactive mode and drx is applied
  • Prevent transmission of measurement reports from UE when UE is in inactive mode and drx is applied
  • Prevent transmission of measurement reports from UE when UE is in inactive mode and drx is applied

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Embodiment Construction

[0018] In certain example embodiments, the subject matter disclosed herein relates to disabling a time-to-trigger (TTT) timer related to event reporting for small cells in a heterogeneous network. In some example embodiments, the TTT timer may be disabled when the user equipment is in idle or inactive data transfer mode, such as connected mode DRX, long DRX and / or DRX cycle exceeding a certain time threshold. In some example embodiments, when the user equipment applies DRX and encounters a target cell of a heterogeneous network, such as a small cell, the TTT timer may be disabled by the user equipment. As used herein, disabling a TTT timer refers to stopping, ignoring, and / or ignoring the TTT timer or the expiration of the TTT timer.

[0019] In some example embodiments, disabling the TTT timer may prevent user equipment from reporting measurement information of events associated with a target cell, such as a small cell, to the network. Since the network does not receive meas...

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Abstract

Methods and apparatus (including computer program products) are provided for determining whether a user equipment is in an inactive connection mode (i.e. applying a discontinuous reception DRX mode) during a period of inactive data reception; and when the user equipment applies a DRX mode, A timer for triggering measurement reporting at the user equipment is disabled, wherein the disabled timer prevents measurement reports related to the target cell from being sent by the user equipment. Related devices, systems, methods, and articles are also described.

Description

technical field [0001] The subject matter disclosed herein relates to wireless communications. Background technique [0002] In the Enhanced Universal Terrestrial Radio Access Network (E-UTRAN), connected mode provides user equipment assisted network controlled handover. For example, the network may configure the user equipment with a measurement configuration, and based on this configuration, the user equipment may then perform measurements and report those measurements to the network. The network may order the user equipment to change the cell to the target cell based on the measurement report. [0003] E-UTRAN also supports Radio Resource Control (RRC) connected mode discontinuous reception mode (hereinafter referred to as DRX and / or connected mode DRX). Connected mode DRX can be used by allowing a user equipment to enter an inactive state (e.g., turn off its receiver) for a certain period of time before it must become active to listen to a control channel to determine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W52/02H04W76/28
CPCH04W36/0088H04W76/28H04W52/0212H04W52/0209Y02D30/70
Inventor L·达尔斯伽德J·J·凯科宁N·科莱赫迈宁
Owner NOKIA TECH OY