Efficient signal transmission methods and apparatus using a shared transmission resource
First Claim
1. A method of transmitting sets of data, the method comprising:
- transmitting in a transmission segment including a plurality of minimum transmission units, a first set of data using at least some non-zero modulation symbols and some zero modulation symbols, the first set of data being communicated by a combination of the position of non-zero modulation symbols within the first segment and at least one of phase and amplitude of the transmitted non-zero modulation symbols; and
transmitting in said transmission segment a second set of data using modulation symbols transmitted on at least some of said minimum transmission units used to transmit said first set of data.
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Accused Products
Abstract
A device includes a zero symbol rate (ZSR) coding/modulation module and a second type coding/modulation module. Both modules generate modulation symbols to be conveyed using the same air link resources but with the non-zero ZSR symbols having a higher power level. The ZSR module generates a mixture of zero and non-zero modulation symbols. A ZSR modulation scheme communicates information using both the position of the non-zero modulation symbols and the phase and/or amplitude of the non-zero modulation symbols. Different ZSR schemes, implementing different ratios relating the number of zero symbols to the total number of symbols, can be associated with different low data rates while second module modulation schemes can be associated with different high data rates. Modulation symbols from two modules are in some embodiments, superimposed. In some embodiments, non-zero ZSR modulation symbols punch out second module modulation symbols which occupy the same air link resource.
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Citations
79 Claims
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1. A method of transmitting sets of data, the method comprising:
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transmitting in a transmission segment including a plurality of minimum transmission units, a first set of data using at least some non-zero modulation symbols and some zero modulation symbols, the first set of data being communicated by a combination of the position of non-zero modulation symbols within the first segment and at least one of phase and amplitude of the transmitted non-zero modulation symbols; and
transmitting in said transmission segment a second set of data using modulation symbols transmitted on at least some of said minimum transmission units used to transmit said first set of data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 52)
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31. A communications apparatus, the apparatus comprising:
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a first coding and modulation module for processing a first set of data to generate a first set of modulation symbols including information to be communicated in a transmission segment including a plurality of minimum transmission units, the first set of modulation symbols including at least some non-zero modulation symbols and some zero modulation symbols, the first set of data being communicated by a combination of the position of non-zero modulation symbols within the first segment and at least one of phase and amplitude of the transmitted non-zero modulation symbols;
a second coding and modulation module for processing a second set of data to generate a second set of modulation symbols to be transmitted on at least some of said minimum transmission units used to transmit said first set of data; and
a transmission module for transmitting modulation symbols corresponding to said first segment generated by said first and second coding and modulation modules (406, 408). - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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53. A communications apparatus, the apparatus comprising:
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first coding and modulation means for processing a first set of data to generate a first set of modulation symbols including information to be communicated in a transmission segment including a plurality of minimum transmission units, the first set of modulation symbols including at least some non-zero modulation symbols and some zero modulation symbols, the first set of data being communicated by a combination of the position of non-zero modulation symbols within the first segment and at least one of phase and amplitude of the transmitted non-zero modulation symbols;
second coding and modulation means for processing a second set of data to generate a second set of modulation symbols to be transmitted on at least some of said minimum transmission units used to transmit said first set of data; and
transmission means for transmitting modulation symbols corresponding to said first segment generated by said first and second coding and modulation means. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A computer readable medium embodying instructions for controlling apparatus to perform a method of transmitting sets of data, the method comprising:
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transmitting in a transmission segment including a plurality of minimum transmission units, a first set of data using at least some non-zero modulation symbols and some zero modulation symbols, the first set of data being communicated by a combination of the position of non-zero modulation symbols within the first segment and at least one of phase and amplitude of the transmitted non-zero modulation symbols; and
transmitting in said transmission segment a second set of data using modulation symbols transmitted on at least some of said minimum transmission units used to transmit said first set of data. - View Dependent Claims (76, 77, 78, 79)
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Specification