Title:
TERMINAL AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/029000
Kind Code:
A1
Abstract:
This terminal is for dual connectivity using a first RAT (radio access technology) and a second RAT. The terminal has: a control unit which uses a first power class when a duty cycle is equal to or less than a threshold value, the duty cycle being calculated by multiplying together the duty cycle for the first RAT, a value obtained by dividing the allowable maximum transmission power of a network of the first RAT by the maximum transmission power for dual connectivity corresponding to the first power class, and a ratio indicating the degree of influence of the first RAT in reference to the second RAT and adding this to a value obtained by multiplying the duty cycle for the second RAT by a value obtained by dividing the allowable maximum transmission power of a network of the second RAT by the maximum transmission power for dual connectivity corresponding to the first power class; and a transmission unit for performing uplink transmission to which the first power class is applied.
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Inventors:
UMEDA HIROMASA (JP)
Application Number:
PCT/JP2019/031776
Publication Date:
February 18, 2021
Filing Date:
August 09, 2019
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W8/22; H04W52/02; H04W52/30; H04W72/04; H04W88/06
Other References:
CHTTL: "Further discussion on solutions for EN-DC FDD-TDD High Power UE", 3GPP TSG-RAN WG4#91 R4- 1906469, 17 May 2019 (2019-05-17), XP051716453, Retrieved from the Internet [retrieved on 20200203]
OPPO: "Further discussion on NSA FDD-TDD HPUE SAR solutions", 3GPP TSG-RAN WG4#91 R4-190555, 17 May 2019 (2019-05-17), Retrieved from the Internet [retrieved on 20200203]
CHTTL: "Discussion on solutions for EN-DC FDD-TDD High Power UE", 3GPP TSG-RAN WG4#90BIS R4-1903296, 12 April 2019 (2019-04-12), XP051713725, Retrieved from the Internet [retrieved on 20200213]
CHTTL: "Discussion for EN-DC High Power UE with one LTE FDD band and 1 NR TDD band", 3GPP TSG-RAN WG4#90 R4-1901242, 1 March 2019 (2019-03-01), XP051605870, Retrieved from the Internet [retrieved on 20200203]
OPPO: "Further discussion on NSA FDD-TDD HPUE SAR solutions", 3GPP TSG-RAN WG4#91 R4-190555, 17 May 2019 (2019-05-17), Retrieved from the Internet
CHTTL: "Discussion on solutions for EN-DC FDD-TDD High Power UE", 3GPP TSG-RAN WG4#90BIS R4-1903296, 12 April 2019 (2019-04-12), XP051713725, Retrieved from the Internet
CHTTL: "Discussion for EN-DC High Power UE with one LTE FDD band and 1 NR TDD band", 3GPP TSG-RAN WG4#90 R4-1901242, 1 March 2019 (2019-03-01), XP051605870, Retrieved from the Internet
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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