USER DEVICE AND RADIO COMMUNICATION METHOD

Title:

USER DEVICE AND RADIO COMMUNICATION METHOD

Document Type and Number:

WIPO Patent Application WO/2017/078090

Kind Code:

A1

Abstract:

Provided are a user device and radio communication method capable of appropriately detecting a radio link failure (RLF), even if a coverage extension mode is activated. A UE (200) is provided with: a CE level setting unit (230) that, when set to a coverage extension mode, sets reception quality threshold values (Qin/Qout) of reference reception power levels (RSRP/RSRQ) corresponding to CE levels; and a radio link monitoring unit (240) that performs monitoring of radio links, on the basis of the set reception quality threshold values. The CE level setting unit (230) sets a reception quality threshold value corresponding to the maximum CE level, regardless of which CE level to which the UE (200) is set.

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Inventors:

TAKAHASHI HIDEAKI (JP)
HAPSARI WURI ANDARMAWANTI (JP)
TAKEDA KAZUAKI (JP)

Application Number:

PCT/JP2016/082651

Publication Date:

May 11, 2017

Filing Date:

November 02, 2016

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Assignee:

NTT DOCOMO INC (JP)

International Classes:

H04W48/16; H04W76/18; H04W4/04; H04W24/10; H04W48/08; H04W88/02

Domestic Patent References:

WO2015116870A1

2015-08-06

Foreign References:

US20150271763A1	2015-09-24
JP2013520103A	2013-05-30

Other References:

NOKIA NETWORKS: "RLM/RLF for Rel13 low complexity UE or/and UE in EC mode", 3GPP TSG-RAN WG2 MEETING #91BIS R2-154557, 25 September 2015 (2015-09-25), XP051023647, Retrieved from the Internet [retrieved on 20161221]
ALCATEL -LUCENT ET AL.: "Considerations on PRACH for LC-MTC", 3GPP TSG-RAN WG1 MEETING #80 RL-150132, 18 February 2015 (2015-02-18), XP050948732, Retrieved from the Internet [retrieved on 20161221]

Attorney, Agent or Firm:

MIYOSHI Hidekazu et al. (JP)

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