Title:
COMMUNICATION DEVICE AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/125223
Kind Code:
A1
Abstract:
This base station selects one of multiple mutually orthogonal code sequences which is multiplied by an uplink signal containing a demodulation reference signal repeated over multiple subframes, and sends information indicating the code sequence by using a field for notifying the terminal configured to transmit the repeated uplink signal of the orthogonal sequence and a cyclic shift used in the demodulation reference signal. The terminal uses the field for notification of the orthogonal sequence and the cyclic shift used in the demodulation reference signal to receive the information indicating one of the multiple mutually orthogonal code sequences, and multiplies the one code signal indicated by the aforementioned information by the uplink signal containing the demodulation reference signal repeated across the multiple subframes.
Inventors:
YAMAMOTO TETSUYA (JP)
HOSHINO MASAYUKI
NAKAO SEIGO
HOSHINO MASAYUKI
NAKAO SEIGO
Application Number:
PCT/JP2015/006350
Publication Date:
August 11, 2016
Filing Date:
December 21, 2015
Export Citation:
Assignee:
PANASONIC IP CORP AMERICA (US)
International Classes:
H04J13/18; H04J11/00; H04W28/06; H04W72/04
Domestic Patent References:
| WO2013056741A1 | 2013-04-25 |
Foreign References:
| US20130114570A1 | 2013-05-09 |
Other References:
PANASONIC: "Multiple subframe code spreading for MTC UEs", 3GPP TSG-RAN WG1#82 R1-153969, August 2015 (2015-08-01), XP050991666
See also references of EP 3255822A4
See also references of EP 3255822A4
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (JP)
Yoshiaki Tokuda (JP)
Yoshiaki Tokuda (JP)
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