METHOD AND APPARATUS FOR TRANSMITTING SIGNAL AND A COMMUNICATION SYSTEM
First Claim
1. A method for sending a signal, comprising:
- performing weighting and repeating modulation on a basic block unit generated from the modulating and mapping of a data block by using a weighting factor sequence, to obtain a plurality of repeated block units corresponding to the basic block unit; and
mapping each of the repeated block units to a specified time-frequency location, and sending a signal at the specified time-frequency location.
3 Assignments
0 Petitions
Accused Products
Abstract
A method, apparatus and system for transmitting signal, the method includes: using the weighting factor sequence, processing weighting repeating modulation for the basic cell block mapped by the data symbol block at the sending end, and obtaining a plurality of the repeating cell blocks corresponding to the said basic cell block; the sending end maps each repeating cell block to the appointed time-frequency position respectively, then sends the signals in the said time-frequency position; and the receiving end demodulates the plurality of data symbol blocks from the blocks, and incorporates the plurality of data symbol blocks; the said receiving end demodulates the incorporated data symbol blocks, and generates the received data. This scheme can be called for short as the block repeating spread diversity transmission technology, it is based on the information symbol in the time-frequency domain two-dimensional grid point. This scheme doesn'"'"'t restrict the modulating signal generation manner at bottom, it can form a new multiple address/multiple path transmission scheme, and can be incorporated with the other key technologies in the existing mobile communication.
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Citations
50 Claims
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1. A method for sending a signal, comprising:
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performing weighting and repeating modulation on a basic block unit generated from the modulating and mapping of a data block by using a weighting factor sequence, to obtain a plurality of repeated block units corresponding to the basic block unit; and mapping each of the repeated block units to a specified time-frequency location, and sending a signal at the specified time-frequency location. - View Dependent Claims (2, 4, 5, 6, 7, 8)
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3. (canceled)
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9-21. -21. (canceled)
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22. A method for receiving a signal, comprising:
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receiving a signal, and adjusting repeated block units at a plurality of specified time-frequency locations to the same time-frequency location; performing channel estimation according to pilot symbols, and combining the adjusted repeated block units according to a result of the channel estimation; demodulating the combined repeated block units to obtain a data block; and demodulating the data block to generate received data. - View Dependent Claims (23, 24, 25)
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26-29. -29. (canceled)
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30. A communication apparatus, comprising:
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a unit for partitioning and modulating data to be sent to generate data blocks; a unit for modulating and mapping each of the data blocks to a physical resource block to generate a basic block unit; a unit for performing weighting and repeating modulation on the basic block unit by using a weighting factor sequence, and mapping a plurality of repeated block units obtained from weighting and repeating modulation on the basic block unit to specified time-frequency locations, respectively; and a unit for sending a signal at the specified time-frequency location and receiving a signal. - View Dependent Claims (32, 33, 34, 35)
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31. (canceled)
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36-45. -45. (canceled)
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46. A communication apparatus, comprising:
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a unit for sending or receiving a signal; a unit for adjusting repeated block units at a plurality of specified time-frequency locations to the same time-frequency location after receiving the signal; a unit for performing channel estimation according to pilot symbols, and combining the adjusted repeated block units according to the channel estimation; a unit for demodulating the combined repeated block units to obtain a data block; and a unit for demodulating the data block to generate received data. - View Dependent Claims (47, 48, 49)
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50-53. -53. (canceled)
Specification