Title:
BASE STATION APPARATUS, TERMINAL APPARATUS, AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/170352
Kind Code:
A1
Abstract:
A base station apparatus that wirelessly communicates with a terminal apparatus by use of either a first uplink frequency paired with a downlink frequency or a second uplink frequency different from the first uplink frequency and by use of the downlink frequency, is provided with: a radio control unit that transmits, to the terminal apparatus, an uplink reference signal transmission request for requesting the transmissions of first and second uplink reference signals using the first and second uplink frequencies, respectively, and control information related to the first and second uplink reference signals and that also transmits, to the terminal apparatus, frequency control information related to the first or second uplink frequency; and a reception unit that receives the first and second uplink reference signals transmitted from the terminal apparatus by use of the first and second uplink frequencies, respectively.
Inventors:
ODE TAKAYOSHI (JP)
KAWASAKI YOSHIHIRO (JP)
KAWASAKI YOSHIHIRO (JP)
Application Number:
PCT/JP2019/006249
Publication Date:
August 27, 2020
Filing Date:
February 20, 2019
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04W72/04; H04W76/10
Foreign References:
| JP2015006003A | 2015-01-08 |
Other References:
VIVO: "Discussion on the simultaneous configuration of grant free type 1/2 [ online", 3GPP TSG RAN WG2 #101 R2-1801990, 26 February 2018 (2018-02-26), XP051399065, Retrieved from the Internet
SAMSUNG: "PUCCH and PUSCH on SUL [ online", 3GPP TSG RAN WG2 #99BIS R2-1711632, 9 October 2017 (2017-10-09), XP055732346, Retrieved from the Internet
SAMSUNG: "Initial access for supplementary uplink frequency [ online", 3GPP TSG RAN WG2 #99BIS R2-1711807, 9 October 2017 (2017-10-09), XP051343763, Retrieved from the Internet
CMCC: "Considerations on support of supplementary uplink frequency [ online", 3GPP TSG RAN WG2 #99BIS R2-1711824, 9 October 2017 (2017-10-09), XP051343779, Retrieved from the Internet
HUAWEI ET AL.: "Discussion on RRM impact on uplink sharing [ online", 3GPP TSG RAN WG4 #84BIS R4-1711227, 9 October 2017 (2017-10-09), XP051345964, Retrieved from the Internet
SAMSUNG: "PUCCH and PUSCH on SUL [ online", 3GPP TSG RAN WG2 #99BIS R2-1711632, 9 October 2017 (2017-10-09), XP055732346, Retrieved from the Internet
SAMSUNG: "Initial access for supplementary uplink frequency [ online", 3GPP TSG RAN WG2 #99BIS R2-1711807, 9 October 2017 (2017-10-09), XP051343763, Retrieved from the Internet
CMCC: "Considerations on support of supplementary uplink frequency [ online", 3GPP TSG RAN WG2 #99BIS R2-1711824, 9 October 2017 (2017-10-09), XP051343779, Retrieved from the Internet
HUAWEI ET AL.: "Discussion on RRM impact on uplink sharing [ online", 3GPP TSG RAN WG4 #84BIS R4-1711227, 9 October 2017 (2017-10-09), XP051345964, Retrieved from the Internet
Attorney, Agent or Firm:
DOI Kenji et al. (JP)
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