Title:
COMMUNICATION DEVICE, CONTROL METHOD, AND PROGRAM FOR EXECUTING COEXISTENCE WITH LEGACY SYSTEM
Document Type and Number:
Japanese Patent JP2022125361
Kind Code:
A
Abstract:
To reduce an effect of transmission of signals in a new generation second radio communication system on an old generation first radio communication system.SOLUTION: A communication device capable of performing communication by a second radio communication system different from a first radio communication system for periodically transmitting a reference signal at a predetermined frequency interval in a frequency band used in the first radio communication system, sets a period for stopping the periodic transmission of the reference signal, transmits information on the period to a base station device of the first radio communication system, and transmits a predetermined signal to the second radio communication system while the base station device of the first radio communication system stops the periodic transmission of the reference signal based on the period. In a state where the communication by the second radio communication system is not performed in that frequency band, the communication device transmits information to the base station device of the first radio communication system in response to connecting to a terminal device capable of performing communication by the second radio communication system in that frequency band in a second frequency band different from that frequency band.SELECTED DRAWING: Figure 8
Inventors:
MORIWAKI KAZUYA
SHIBAYAMA MASAYA
SUEGARA YASUHIRO
OZEKI TAKEO
SHIBAYAMA MASAYA
SUEGARA YASUHIRO
OZEKI TAKEO
Application Number:
JP2022111302A
Publication Date:
August 26, 2022
Filing Date:
July 11, 2022
Export Citation:
Assignee:
KDDI CORP
International Classes:
H04W16/14; H04W72/04; H04W92/20
Foreign References:
| WO2017173133A1 | 2017-10-05 |
Other References:
ERICSSON, NOKIA, NOKIA SHANGHAI BELL, AT & T: "LTE-NR resource allocation coordination over X2[online]", 3GPP TSG RAN WG3 #99 R3-181284, JPN6021044906, 17 February 2018 (2018-02-17), ISSN: 0005162884
HUAWEI, HISILICON: "Coexistence of NR DL and LTE[online]", 3GPP TSG RAN WG1 #88 R1-1703559, JPN6021044905, 15 February 2017 (2017-02-15), ISSN: 0005162885
SAMSUNG: "RRC signalling to support LTE+NR Co-existence[online]", 3GPP TSG RAN WG2 #99BIS R2-1711819, JPN6021044903, 29 September 2017 (2017-09-29), ISSN: 0005162886
HUAWEI, HISILICON: "Coexistence of NR DL and LTE[online]", 3GPP TSG RAN WG1 #88 R1-1703559, JPN6021044905, 15 February 2017 (2017-02-15), ISSN: 0005162885
SAMSUNG: "RRC signalling to support LTE+NR Co-existence[online]", 3GPP TSG RAN WG2 #99BIS R2-1711819, JPN6021044903, 29 September 2017 (2017-09-29), ISSN: 0005162886
Attorney, Agent or Firm:
Patent Business Corporation Otsuka International Patent Office