Title:
TERMINAL DEVICE, BASE STATION DEVICE AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/169004
Kind Code:
A1
Abstract:
[Problem] To provide a terminal device that can perform communication efficiently in a communication system in which a base station and a terminal device communicate with one another. [Solution] A terminal device that communicates with a base station comprises an upper layer processing unit that sets one or more SPDCCH settings by upper layer signaling from the base station device; and a receiving unit that monitors SPDCCHs transmitted on the basis of a resource block set by SPDCCH settings, and an expanded subframe having a fewer number of symbols than the number of symbols corresponding to the subframe, on the basis of SPDCCH settings. SPDCCHs are transmitted by at least one control channel element. The control channel element comprises a plurality of resource element groups. The resource element groups are prescribed so as to correspond to symbols in the resource block pairs, for each of the resource block pairs set in SPDCCH settings.
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Inventors:
SHIMEZAWA KAZUYUKI (JP)
Application Number:
PCT/JP2017/002264
Publication Date:
October 05, 2017
Filing Date:
January 24, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04W72/04
Domestic Patent References:
| WO2015186824A1 | 2015-12-10 |
Other References:
LENOVO: "Consideration on TTI shortening for DL", 3GPP TSG-RAN WG1#84 RL-161017, 19 February 2016 (2016-02-19), XP051054321, Retrieved from the Internet
CATT: "System Analysis of DL TTI Shortening", 3GPP TSG-RAN WG1#84 RL-160373, 19 February 2016 (2016-02-19), XP051053712, Retrieved from the Internet
ERICSSON: "Way forward on sTTI structure", 3GPP TSG-RAN WG1#84 R1- 161341, 19 February 2016 (2016-02-19), XP051054560, Retrieved from the Internet
SAMSUNG: "Specification impact for DL due to TTI shortening", 3GPP TSG-RAN WG1#84 R1- 160585, 19 February 2016 (2016-02-19), XP051053917, Retrieved from the Internet
LG ELECTRONICS: "Discussion on CRS based PDCCH transmission with TTI shortening", 3GPP TSG-RAN WG1#84 RL-160650, 19 February 2016 (2016-02-19), XP051053979, Retrieved from the Internet
NOKIA NETWORKS ET AL.: "Considerations on required downlink physical layer enhancements for shorter TTI", 3GPP TSG-RAN WG1#84 R1- 160786, 19 February 2016 (2016-02-19), XP051054113, Retrieved from the Internet
See also references of EP 3439396A4
CATT: "System Analysis of DL TTI Shortening", 3GPP TSG-RAN WG1#84 RL-160373, 19 February 2016 (2016-02-19), XP051053712, Retrieved from the Internet
ERICSSON: "Way forward on sTTI structure", 3GPP TSG-RAN WG1#84 R1- 161341, 19 February 2016 (2016-02-19), XP051054560, Retrieved from the Internet
SAMSUNG: "Specification impact for DL due to TTI shortening", 3GPP TSG-RAN WG1#84 R1- 160585, 19 February 2016 (2016-02-19), XP051053917, Retrieved from the Internet
LG ELECTRONICS: "Discussion on CRS based PDCCH transmission with TTI shortening", 3GPP TSG-RAN WG1#84 RL-160650, 19 February 2016 (2016-02-19), XP051053979, Retrieved from the Internet
NOKIA NETWORKS ET AL.: "Considerations on required downlink physical layer enhancements for shorter TTI", 3GPP TSG-RAN WG1#84 R1- 160786, 19 February 2016 (2016-02-19), XP051054113, Retrieved from the Internet
See also references of EP 3439396A4
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
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