TERMINAL DEVICE WHICH PERFORMS COMMUNICATION IN STANDBY STATE, CONTROL METHOD THEREOF, AND PROGRAM

Title:

TERMINAL DEVICE WHICH PERFORMS COMMUNICATION IN STANDBY STATE, CONTROL METHOD THEREOF, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2020/059314

Kind Code:

A1

Abstract:

This terminal device has a communication function which can operate in multiple states, including a first state in which a connection is established with a base station, and a second state in which a connection with the base station has not been established but the base station holds information of the local device. After starting operation in the second state from a state during operation in the first state with the first base station, if the terminal device holds prescribed information which was acquired while in the first state from the first base station and which enables communication with the first base station in the second state, then the terminal device determines whether or not the signal transmission target has changed from the first base station to the second base station and performs communication depending on the results of said determination.

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Inventors:

OHSEKI TAKEO (JP)
UMEHARA MASAHITO (JP)
KANNO ISSEI (JP)
SUEGARA YASUHIRO (JP)

Application Number:

PCT/JP2019/030157

Publication Date:

March 26, 2020

Filing Date:

August 01, 2019

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Assignee:

KDDI CORP (JP)

International Classes:

H04W76/27; H04W36/08

Domestic Patent References:

WO2018138854A1	2018-08-02
WO2018128018A1	2018-07-12

Foreign References:

JP2018175780A

2018-11-15

Other References:

HUAWEI ET AL.: "Discussion on cell selection in case of state transition from CONNECTED to INACTIVE", 3GPP TSG RAN WG2 #103 R2-1812432, 10 August 2018 (2018-08-10), XP051522029
ZTE: "Procedures related to NOMA", 3GPP TSG RAN WG1 #94 RL-1808153, 11 August 2018 (2018-08-11), XP051515556
NOKIA: "NR Corrections (38. 300 Baseline CR covering RAN3-101 agreements", 3GPP TSG RAN WG2 #103 R2-1813140, 4 September 2018 (2018-09-04), XP051522705
KDDI: "Discussion on procedures related to NOMA", 3GPP TSG RAN WG1 #94B RL-1811486, 28 September 2018 (2018-09-28), XP051518889
3GPP TS 38.300, June 2018 (2018-06-01)
See also references of EP 3855865A4

Attorney, Agent or Firm:

OHTSUKA, Yasunori et al. (JP)

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