Title:
単一搬送波周波数分割多元接続システムにおける符号分割多重化
Document Type and Number:
Japanese Patent JP5571131
Kind Code:
B2
Abstract:
In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA (LFDMA), a transmitter generates modulation symbols for different types of data (e.g., traffic data, signaling, and pilot) and performs code division multiplexing (CDM) on at least one data type. For example, the transmitter may apply CDM on signaling and/or pilot sent on frequency subbands and symbol periods that are also used by at least one other transmitter. To apply CDM to a given data type (e.g., signaling), the transmitter performs spreading on the modulation symbols for that data type with an assigned spreading code. CDM may be applied across symbols, samples, samples and symbols, frequency subbands, and so on. The transmitter may perform scrambling after the spreading. The transmitter generates SC-FDMA symbols of the same or different symbol durations for traffic data, signaling, and pilot and transmits the SC-FDMA symbols.
Inventors:
Rabbi パランキ
アーモド クハンデカー
アラク スティボング
アーモド クハンデカー
アラク スティボング
Application Number:
JP2012151285A
Publication Date:
August 13, 2014
Filing Date:
July 05, 2012
Export Citation:
Assignee:
クゥアルコム, Incorporated QUALCOMM INCORPORATED
International Classes:
H04J11/00; H04B1/7105; H04L25/02; H04L27/01
Attorney, Agent or Firm:
Masatoshi Kurata
Shigeo Takakura
Makoto Nakamura
Toshihiro Fukuhara
Peak Takashi
Toshiro Shirane
Nobuhisa Nogawa
Yukinaga Yasujiro
Naoki Kono
Sunagawa 克
Iseki Mamoru 3
Tatsushi Sato
Okada Kishi
Mihoko Horiuchi
Masanori Takeuchi
Shigeo Takakura
Makoto Nakamura
Toshihiro Fukuhara
Peak Takashi
Toshiro Shirane
Nobuhisa Nogawa
Yukinaga Yasujiro
Naoki Kono
Sunagawa 克
Iseki Mamoru 3
Tatsushi Sato
Okada Kishi
Mihoko Horiuchi
Masanori Takeuchi