Title:
RADIO COMMUNICATION SYSTEM, TERMINAL DEVICE, BASE STATION DEVICE, BEAM SELECTION METHOD, AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/199515
Kind Code:
A1
Abstract:
A 5G base station device according to the present invention reports, to a terminal device, reception selection information for differentiating and measuring a first reception power, that includes the reception power of a self radio communication system in which the base station device is included, and a second reception power, that does not include the reception power of the self radio communication system. The 5G terminal device measures, in a shared frequency band and on the basis of the reception selection information reported from the base station device, the first reception power and the second reception power for each of a plurality of beams of a beamforming function, and selects, on the basis of the measurement results of the first reception power and the measurement results of the second reception power, a beam, from among the plurality of beams of the beamforming function, to be used in downlinking.
Inventors:
KANNO ISSEI (JP)
KATAOKA RYOCHI (JP)
ISHIKAWA HIROYASU (JP)
SUZUKI TOSHINORI (JP)
KATAOKA RYOCHI (JP)
ISHIKAWA HIROYASU (JP)
SUZUKI TOSHINORI (JP)
Application Number:
PCT/JP2020/046998
Publication Date:
October 07, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
KDDI RES INC (JP)
International Classes:
H04W16/14; H04W16/28
Domestic Patent References:
| WO2016121201A1 | 2016-08-04 |
Foreign References:
| US20200068549A1 | 2020-02-27 |
Other References:
APPLE: "Considerations on separate DL and UL beam reporting", 3GPP DRAFT; R1-1900751 CONSIDERATIONS ON SEPARATE DL AND UL BEAM REPORTING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei, Taiwan; 20190121 - 20190125, 12 January 2019 (2019-01-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051576290
AT&T: "Physical Layer Enhancements for NR Unlicensed", 3GPP DRAFT; R1-1804666 PHYSICAL LAYER ENHANCEMENTS FOR NR UNLICENSED, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 7 April 2018 (2018-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051414038
AT&T: "Physical Layer Enhancements for NR Unlicensed", 3GPP DRAFT; R1-1804666 PHYSICAL LAYER ENHANCEMENTS FOR NR UNLICENSED, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 7 April 2018 (2018-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051414038
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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