Method and apparatus for transmitting data
First Claim
1. An apparatus for transmitting data comprising:
- a high frequency radio unit (HFRU) that is in a communication connection with a site; and
a shift frequency radio unit (SFRU) that is in a communication connection with the HFRU and with a user equipment, wherein;
the HFRU comprises a high frequency radio unit—
indoor device unit (HFRU-IDU) and a high frequency radio unit—
outdoor device unit (HFRU-ODU) that connects to the HFRU-IDU, and the SFRU comprises a high frequency band transceiver and a wireless cellular band transceiver;
the HFRU-IDU is configured to convert data sent by the site into a downstream intermediate frequency analog signal and send the downstream intermediate frequency analog signal to the HFRU-ODU;
the HFRU-ODU is configured to convert the downstream intermediate frequency analog signal sent by the HFRU-IDU into a downstream high frequency signal and send the downstream high frequency signal to the SFRU by using an air interface;
the high frequency band transceiver is configured to convert the downstream high frequency signal sent by the HFRU-ODU into a downstream intermediate frequency signal and send the downstream intermediate frequency signal to the wireless cellular band transceiver;
the wireless cellular band transceiver is configured to convert the downstream intermediate frequency signal sent by the high frequency band transceiver into a downstream wireless cellular signal and send the downstream wireless cellular signal to the user equipment; and
the HFRU-IDU comprises a common public radio interface (CPRI) deframing/framing module and a first digital/analog converter, wherein;
the CPRI deframing/framing module is configured to acquire a downstream intermediate frequency digital signal from CPRI protocol data sent by the site,the first digital/analog converter is configured to (a) convert the downstream intermediate frequency digital signal into a downstream intermediate frequency analog signal and (b) convert the upstream intermediate frequency analog signal sent by the HFRU-ODU into the upstream intermediate frequency digital signal, andthe CPRI deframing/framing module is further configured to convert the upstream intermediate frequency digital signal into a CPRI data frame.
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Accused Products
Abstract
Embodiments of the present invention disclose a method and an apparatus for transmitting data. The apparatus for transmitting data includes a high frequency radio unit HFRU that is in a communication connection with a site, and a shift frequency radio unit SFRU that is in a communication connection with the HFRU and with a user equipment, where the HFRU includes a high frequency radio unit—indoor device unit HFRU-IDU and a high frequency radio unit—outdoor device unit HFRU-ODU that connects to the HFRU-IDU, and the SFRU includes a high frequency band transceiver and a wireless cellular band transceiver. By converting to-be-transmitted data into intermediate frequency signals for transmission, the method and apparatus for transmitting data according to the embodiments of the present invention can remarkably reduce a data transmission bandwidth, thereby saving bandwidth resources, reducing a data transmission cost, and reducing a device deployment cost.
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Citations
15 Claims
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1. An apparatus for transmitting data comprising:
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a high frequency radio unit (HFRU) that is in a communication connection with a site; and a shift frequency radio unit (SFRU) that is in a communication connection with the HFRU and with a user equipment, wherein; the HFRU comprises a high frequency radio unit—
indoor device unit (HFRU-IDU) and a high frequency radio unit—
outdoor device unit (HFRU-ODU) that connects to the HFRU-IDU, and the SFRU comprises a high frequency band transceiver and a wireless cellular band transceiver;the HFRU-IDU is configured to convert data sent by the site into a downstream intermediate frequency analog signal and send the downstream intermediate frequency analog signal to the HFRU-ODU; the HFRU-ODU is configured to convert the downstream intermediate frequency analog signal sent by the HFRU-IDU into a downstream high frequency signal and send the downstream high frequency signal to the SFRU by using an air interface; the high frequency band transceiver is configured to convert the downstream high frequency signal sent by the HFRU-ODU into a downstream intermediate frequency signal and send the downstream intermediate frequency signal to the wireless cellular band transceiver; the wireless cellular band transceiver is configured to convert the downstream intermediate frequency signal sent by the high frequency band transceiver into a downstream wireless cellular signal and send the downstream wireless cellular signal to the user equipment; and the HFRU-IDU comprises a common public radio interface (CPRI) deframing/framing module and a first digital/analog converter, wherein; the CPRI deframing/framing module is configured to acquire a downstream intermediate frequency digital signal from CPRI protocol data sent by the site, the first digital/analog converter is configured to (a) convert the downstream intermediate frequency digital signal into a downstream intermediate frequency analog signal and (b) convert the upstream intermediate frequency analog signal sent by the HFRU-ODU into the upstream intermediate frequency digital signal, and the CPRI deframing/framing module is further configured to convert the upstream intermediate frequency digital signal into a CPRI data frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for transmitting data comprising:
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receiving, by a high frequency radio unit (HFRU), data sent by a site; converting, by the HFRU, the data sent by the site into a downstream intermediate frequency analog signal, and converting the downstream intermediate frequency analog signal into a downstream high frequency signal; sending, by the HFRU, the downstream high frequency signal to a shift frequency radio unit (SFRU) by using an air interface; converting, by the SFRU, the downstream high frequency signal into a downstream intermediate frequency signal, and converting the downstream intermediate frequency signal into a downstream wireless cellular signal; sending, by the SFRU, the downstream wireless cellular signal to a user equipment; determining, by the HFRU, downstream phase noise compensation information about an emission local oscillator of the HFRU; sending, by the HFRU, the downstream phase noise compensation information to the SFRU; and performing, by the SFRU according to the downstream phase noise compensation information, compensation correction for the downstream high frequency signal sent by the HFRU. - View Dependent Claims (11, 12)
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13. A method for transmitting data comprising:
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receiving, by a shift frequency radio unit (SFRU), an upstream wireless cellular signal sent by a user equipment; converting, by the SFRU, the upstream wireless cellular signal into an upstream intermediate frequency signal, and converting the upstream intermediate frequency signal into an upstream high frequency signal; sending, by the SFRU, the upstream high frequency signal to a high frequency radio unit (HFRU) by using an air interface; converting, by the HFRU, the upstream high frequency signal sent by the SFRU into an upstream intermediate frequency analog signal, and converting the upstream intermediate frequency analog signal into an upstream intermediate frequency digital signal; sending, by the HFRU, the upstream intermediate frequency digital signal to a site; determining, by the SFRU, upstream phase noise compensation information about an emission local oscillator of the SFRU; sending, by the SFRU, the upstream phase noise compensation information to the HFRU; and performing, by the HFRU according to the upstream phase noise compensation information compensation correction for the upstream high frequency signal sent by the SFRU. - View Dependent Claims (14, 15)
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Specification