Title:
DIRECT SPREAD RECEIVER
Document Type and Number:
Japanese Patent JP3147112
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a direct spread receiver with which errors in received data are reduced.
SOLUTION: Multipliers 2a, 2b convert signals received by different reception antennas 1a, 1b into a direct spread reception signal of a base band, inverse spread sections 4a, 4b apply inverse spread processing to outputs of the multipliers, and outputs received data as initial values that are decoded internally. Each of 2 series interference cancellers 6a, 6b generates the replica of an interference signal included in a direct spread signal delayed via delay sections 4a, 4b based on the received data from the inverse spread sections 4a, 4b, subtracts this replica from the direct spread signal to output an inverse spread signal, from which the effect of an interference signal is reduced. A combine discriminating part 7 decodes a signal combining the inverse spread signals outputted from the 2 series of the interference cancellers 6a, 6b to discriminate the received data.
Inventors:
Yoshio Wada
Application Number:
JP7274199A
Publication Date:
March 19, 2001
Filing Date:
March 17, 1999
Export Citation:
Assignee:
WRP Mobile Communication Technology Laboratory
Toyo Communication Equipment Co., Ltd.
Toyo Communication Equipment Co., Ltd.
International Classes:
H04J13/00; H04B1/7107; (IPC1-7): H04J13/04
Domestic Patent References:
| JP10308690A | ||||
| JP10308725A | ||||
| JP6304575A | ||||
| JP8237171A |
Attorney, Agent or Firm:
Hideo Takahashi (3 others)