Array antenna system in mobile communication
First Claim
1. An array antenna system for mobile communication, comprising:
- a signal converter for performing frequency downconversion and digital signaling on radio signals received from multiple paths through a plurality of array antennas; and
a baseband unit for using signals output from the signal converter to generate beam-forming signals having equal power levels, temporally and spatially performing dispreading, performing channel estimation, performing coherent demodulation, and performing combining and decoding to output final signals.
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Abstract
Disclosed is a mobile array antenna system that comprises: a signal converter for performing frequency downconversion and digital signaling on radio signals received through a plurality of array antennas in multiple paths, converting the signals into analog signals, and performing frequency upconversion; and a baseband unit for using the signals output from the signal converter to generate receiving beam-forming signals having equal power levels, performing temporal and spatial dispreading, channel estimation, coherent demodulation, combining and decoding to output final signals, receiving signals for wireless transmission, performing channel encoding on them, modulating the channel encoded signals, generating transmission beam-forming signals, and outputting them to the signal converter.
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Citations
14 Claims
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1. An array antenna system for mobile communication, comprising:
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a signal converter for performing frequency downconversion and digital signaling on radio signals received from multiple paths through a plurality of array antennas; and
a baseband unit for using signals output from the signal converter to generate beam-forming signals having equal power levels, temporally and spatially performing dispreading, performing channel estimation, performing coherent demodulation, and performing combining and decoding to output final signals. - View Dependent Claims (2, 3, 4, 5)
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6. An array antenna system for mobile communication, comprising:
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a baseband unit for receiving signals input for mobile transmission, performing channel encoding on them, modulating the channel encoded signals on the basis of information on power ratios of externally input receiving beam-forming signals, generating transmission beam-forming signals, and outputting them; and
a signal converter for converting the signals output from the baseband unit into analog signals, upconverting the frequency, and wirelessly transmitting the analog signals through a plurality of array antennas in multiple paths. - View Dependent Claims (7, 8, 9)
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10. A mobile array antenna system comprising:
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a signal converter for receiving radio signals through a plurality of array antennas in multiple paths, performing frequency downconversion on them, performing digital signaling, converting the signals input for wireless transmission through the array antennas into analog signals, and performing frequency upconversion; and
a baseband unit for using the signals output from the signal converter to generate receiving beam-forming signals having equal power levels, temporally and spatially performing dispreading, performing channel estimation, performing coherent demodulation, performing combining and decoding to output final signals, receiving signals input for wireless transmission and performing channel encoding on them, modulating the channel encoded signals, generating transmission beam-forming signals, and outputting them to the signal converter on the basis of information on the power levels of the receiving beam-forming signals used for the receiving beam-forming signals to have equal power levels. - View Dependent Claims (11, 12, 13, 14)
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Specification