Transmitter and receiver
First Claim
1. A transmitter that transmits a signal to a receiver, comprising:
- a first transmitting means that transmits a signal using a frame format that is formed by a first pilot signal in which an end portion of a known signal that has been matched in advance with the receiver is reproduced at a front of the signal, and by first transmitted binary data in which an end portion of the data is reproduced at a front of the data;
a second transmitting means that transmits a signal using a frame format formed by a second pilot signal formed by a known signal that has been matched in advance with the receiver, and by second transmitted binary data; and
a selection means that selects one of the first transmitting means and the second transmitting means when a signal is transmitted.
1 Assignment
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Accused Products
Abstract
A receiver informs a delay profile and CIR measured in an FDE or a Rake receiver, together with a bit error rate of a received signal that is required in a receiver, as quality information to a transmitter. In the transmitter, based on the delay profile and CIR contained in the notified quality information, a number of code division multiplex and a frame format are decided in a decision circuit such that a bit error rate of a received signal, which is necessary on the receiver side, can be obtained. In addition, a transmission selection switch selects one of a unique word insertion unit and a cyclic prefix insertion unit that create a frame format for FDE reception and a pilot insertion unit and a complex scrambling unit that create a frame format for Rake reception, and data is then transmitted.
161 Citations
11 Claims
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1. A transmitter that transmits a signal to a receiver, comprising:
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a first transmitting means that transmits a signal using a frame format that is formed by a first pilot signal in which an end portion of a known signal that has been matched in advance with the receiver is reproduced at a front of the signal, and by first transmitted binary data in which an end portion of the data is reproduced at a front of the data;
a second transmitting means that transmits a signal using a frame format formed by a second pilot signal formed by a known signal that has been matched in advance with the receiver, and by second transmitted binary data; and
a selection means that selects one of the first transmitting means and the second transmitting means when a signal is transmitted. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A receiver that receives a signal from the transmitter, comprising:
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a first receiving means that receives the signal by operating a frequency domain equalizer (FDE);
a second receiving means that performs Rake reception of the signal; and
a selection means that selects one of the first receiving means and the second receiving means. - View Dependent Claims (8, 9, 10, 11)
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Specification