Transmitting Circuit, Transceiver, Communication System, and Method for Transmitting Data
First Claim
1. A transmitting circuit comprising:
- a digital interface circuit configured to;
obtain, in a predetermined bandwidth, first data to be sent; and
decompose the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth, and wherein N is a positive integer greater than 1;
a digital modulation circuit configured to;
receive the N first sub digital signal flows; and
modulate the N first sub digital signal flows to obtain N first modulated signals;
a first frequency relocation circuit configured to;
receive the N first modulated signals; and
perform frequency relocation on the N first modulated signals so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation;
a first synthesizer configured to synthesize M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N;
a first digital to analog converter configured to;
receive the first bandwidth signal; and
perform digital to analog conversion on the first bandwidth signal to obtain a first analog signal; and
a first up-conversion circuit configured to;
receive the first analog signal; and
convert the first analog signal into a radio frequency signal so that the radio frequency signal is sent by an antenna.
1 Assignment
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Accused Products
Abstract
A transmitting circuit, a transceiver, a communication system, and a method for transmitting data. The transmitting circuit includes a digital interface circuit configured to obtain, in a predetermined bandwidth, data to be sent, and decompose the data into N parallel sub digital signal flows; a digital modulation circuit configured to modulate the N sub digital signal flows to obtain N modulated signals; a frequency relocation circuit configured to perform frequency relocation on the N modulated signals; a synthesizer configured to modulate M modulated signals of the N modulated signals that have undergone frequency relocation into a bandwidth signal; a digital to analog converter configured to receive the bandwidth signal, and perform digital to analog conversion on the bandwidth signal to obtain an analog signal; an up-conversion circuit configured to receive the analog signal, and convert the analog signal into a radio frequency signal.
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Citations
20 Claims
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1. A transmitting circuit comprising:
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a digital interface circuit configured to; obtain, in a predetermined bandwidth, first data to be sent; and decompose the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth, and wherein N is a positive integer greater than 1; a digital modulation circuit configured to; receive the N first sub digital signal flows; and modulate the N first sub digital signal flows to obtain N first modulated signals; a first frequency relocation circuit configured to; receive the N first modulated signals; and perform frequency relocation on the N first modulated signals so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation; a first synthesizer configured to synthesize M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N; a first digital to analog converter configured to; receive the first bandwidth signal; and perform digital to analog conversion on the first bandwidth signal to obtain a first analog signal; and a first up-conversion circuit configured to; receive the first analog signal; and convert the first analog signal into a radio frequency signal so that the radio frequency signal is sent by an antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A transceiver comprising a receiving circuit and a transmitting circuit, wherein the transmitting circuit comprises:
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a digital interface circuit configured to; obtain, in a predetermined bandwidth, first data to be sent; and decompose the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth, and wherein N is a positive integer greater than 1; a digital modulation circuit configured to receive the N first sub digital signal flows, and modulate the N first sub digital signal flows to obtain N first modulated signals; a first frequency relocation circuit configured to; receive the N first modulated signals; and perform frequency relocation on the N first modulated signals, so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation; a first synthesizer configured to synthesize M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N; a first digital to analog converter configured to; receive the first bandwidth signal, and perform digital to analog conversion on the first bandwidth signal to obtain a first analog signal; and a first up-conversion circuit configured to; receive the first analog signal; and convert the first analog signal into a radio frequency signal, so that the radio frequency signal is sent by an antenna, and wherein the receiving circuit comprises; a down-conversion circuit configured to convert a radio frequency signal received on a receiving antenna into an analog signal; an intermediate frequency power divider configured to decompose the analog signal into Q parallel sub analog signal flows; a second frequency relocation circuit configured to perform frequency relocation on the Q parallel sub analog signal flows; N analog to digital converters configured to perform analog to digital conversion on the Q parallel sub analog signal flows respectively to obtain N parallel digital signal flows; a digital demodulation circuit configured to perform demodulation processing on the Q parallel digital signal flows to obtain Q parallel demodulated signals; and a digital interface circuit configured to synthesize the Q parallel demodulated signals into second data.
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11. A communication system comprising a transmitter and a receiver, wherein the transmitter comprises:
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a digital interface circuit configured to; obtain, in a predetermined bandwidth, first data to be sent; and decompose the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth, and wherein N is a positive integer greater than 1; a first digital modulation circuit configured to; receive the N first sub digital signal flows; and modulate the N first sub digital signal flows to obtain N first modulated signals; a first frequency relocation circuit configured to; receive the N first modulated signals; and perform frequency relocation on the N first modulated signals so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation; a first synthesizer configured to synthesize M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N; a first digital to analog converter configured to; receive the first bandwidth signal; and perform digital to analog conversion on the first bandwidth signal to obtain a first analog signal; a first up-conversion circuit configured to; receive the first analog signal; and convert the first analog signal into a first radio frequency signal so that the first radio frequency signal is sent by a first antenna; a second synthesizer configured to synthesize L first modulated signals of the N first modulated signals that have undergone frequency relocation into a second bandwidth signal, wherein the L first modulated signals are different from the M first modulated signals, wherein L is a positive integer, and wherein a sum of L and M is smaller than or equal to N; and a second digital to analog converter configured to; receive the second bandwidth signal; and perform digital to analog conversion on the second bandwidth signal to obtain a second analog signal, wherein the first up-conversion circuit is configured to; receive the first analog signal and the second analog signal; synthesize the first analog signal and the second analog signal into the radio frequency signal; and perform frequency relocation on the first analog signal and the second analog signal respectively before synthesizing the first analog signal and the second analog signal into the first radio frequency signal; a second frequency relocation circuit configured to; receive the N second modulated signals; and perform frequency relocation on the N second modulated signals, wherein there is no frequency band gap between adjacent second modulated signals of the N second modulated signals that have undergone frequency relocation; a third synthesizer configured to synthesize P signals of the N second modulated signals that have undergone frequency relocation into a third bandwidth signal, wherein P is a positive integer smaller than or equal to N; a third digital to analog converter configured to; receive the third bandwidth signal; and perform digital to analog conversion on the third bandwidth signal to obtain a second analog signal; a second up-conversion circuit, wherein the second up-conversion circuit is configured to; receive the third analog signal; and convert the third analog signal into a second radio frequency signal so that the second radio frequency signal is sent by a second antenna, wherein the digital modulation circuit comprises N modulators, wherein the N modulators modulate the N first sub digital signal flows respectively, and wherein the N modulators are further configured to modulate the N second sub digital signal flows; a second digital modulation circuit configured to; receive the K second sub digital signal flows; and modulate the K second sub digital signal flows on the V-polarized antenna to obtain K second modulated signals, wherein K is a positive integer greater than 1; a third frequency relocation circuit configured to; receive the K second modulated signals; and perform frequency relocation on the K second modulated signals, wherein there is no frequency band gap between adjacent second modulated signals of the K second modulated signals that have undergone frequency relocation; a fourth synthesizer configured to synthesize at least two signals of the K second modulated signals that have undergone frequency relocation into a second bandwidth signal; a fourth digital to analog converter configured to; receive the third bandwidth signal; and perform digital to analog conversion on the third bandwidth signal to obtain the third analog signal; a third up-conversion circuit configured to; receive the third analog signal; and convert the third analog signal into a third radio frequency signal; and a coupler configured to couple the first radio frequency signal and the second radio frequency signal so that the first radio frequency signal and the second radio frequency signal are sent by the dual-polarized antenna respectively, wherein the first radio frequency signal is sent by the H-polarized antenna and the second radio frequency signal is sent by the V-polarized antenna, wherein the receiver comprises; a down-conversion circuit configured to convert a radio frequency signal received on a receiving antenna into an analog signal; an intermediate frequency power divider configured to decompose the analog signal into N parallel sub analog signal flows; a second frequency relocation circuit configured to perform frequency relocation on the N parallel sub analog signal flows; N analog to digital converters configured to perform analog to digital conversion on the N parallel sub analog signal flows respectively to obtain N parallel digital signal flows; a digital demodulation circuit configured to perform demodulation processing on the N parallel digital signal flows to obtain N parallel demodulated signals; and a digital interface circuit configured to synthesize the N parallel demodulated signals into first data.
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12. A method for transmitting data comprising:
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obtaining, in a predetermined bandwidth, first data to be sent; decomposing the first data into N parallel first sub digital signal flows, wherein a bandwidth occupied by each first sub digital signal flow of the N first sub digital signal flows is smaller than the predetermined bandwidth and N is a positive integer greater than 1; modulating the N first sub digital signal flows to obtain N first modulated signals; performing frequency relocation on the N first modulated signals so that there is no frequency band gap between adjacent first modulated signals of the N first modulated signals that have undergone frequency relocation; synthesizing M first modulated signals of the N first modulated signals that have undergone frequency relocation into a first bandwidth signal, wherein M is a positive integer smaller than or equal to N; performing digital to analog conversion on the first bandwidth signal to obtain a first analog signal; and converting the first analog signal into a radio frequency signal, so that the radio frequency signal is sent by an antenna. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification