Title:
WIRELESS COMMUNICATION SYSTEM, MOBILE TERMINAL, WIRELESS BASE STATION, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/168560
Kind Code:
A1
Abstract:
In order to ensure more demodulation reference signal (DM-RS) resources that can be allocated to more DM-RS sequences, this wireless communication method is characterized in that: in a wireless base station, a Zadoff-Chu (ZC) sequence is allocated by the number of new randomized sequences between the number of randomized sequences corresponding to a ZC sequence of a length of a maximum prime number that does not exceed the ZC sequence length to be determined for an uplink DM-RS, and the number of randomized sequences specified by Release 10 LTE; and in a mobile terminal, the ZC sequence allocated by the number of new randomized sequences is used to generate a DM-RS sequence.
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Inventors:
KAKISHIMA YUICHI (JP)
KISHIYAMA YOSHIHISA (JP)
KISHIYAMA YOSHIHISA (JP)
Application Number:
PCT/JP2013/061981
Publication Date:
November 14, 2013
Filing Date:
April 24, 2013
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04J11/00; H04J13/22; H04J99/00; H04W72/04
Domestic Patent References:
| WO2009084225A1 | 2009-07-09 | |||
| WO2009084222A1 | 2009-07-09 |
Other References:
NOKIA SIEMENS NETWORKS ET AL.: "On DM RS Enhancements for UL CoMP", 3GPP TSG-RAN WG1#68B RL-121282, 26 March 2012 (2012-03-26), Retrieved from the Internet
INTEL CORPORATION: "DM-RS Enhancements for UL CoMP", 3GPP TSG-RAN WG1#68 RL-120815, 6 February 2012 (2012-02-06), Retrieved from the Internet
FUJITSU: "Considerations on PUSCH DM-RS resources for UL CoMP scenario4", 3GPP TSG-RAN WG1#68 RL-120760, 6 February 2012 (2012-02-06), Retrieved from the Internet
PANASONIC: "Enhancement of PUSCH DMRS orthogonality", 3GPP TSG-RAN WG1#68 RL-120230, 6 February 2012 (2012-02-06), Retrieved from the Internet
INTEL CORPORATION: "DM-RS Enhancements for UL CoMP", 3GPP TSG-RAN WG1#68 RL-120815, 6 February 2012 (2012-02-06), Retrieved from the Internet
FUJITSU: "Considerations on PUSCH DM-RS resources for UL CoMP scenario4", 3GPP TSG-RAN WG1#68 RL-120760, 6 February 2012 (2012-02-06), Retrieved from the Internet
PANASONIC: "Enhancement of PUSCH DMRS orthogonality", 3GPP TSG-RAN WG1#68 RL-120230, 6 February 2012 (2012-02-06), Retrieved from the Internet
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
Hiroyoshi Aoki (JP)
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