Method and system for real time control of an active antenna over a distributed antenna system
First Claim
1. A distributed antenna system comprising:
- a first combining unit;
at least one cable run connecting the first combining unit to at least one antenna unit;
the first combining unit including a connection capable of connecting the first combining unit to a source transmitter, the first combining unit being capable of transferring signals corresponding to a first wireless service between the source transmitter and the cable run;
at least one wireless service access point connected to the first combining unit, the first combining unit being capable of transferring signals corresponding to a second wireless service between the at least one wireless access point and the cable run;
a first interface module connected to the wireless service access point and capable of converting a control signal sent from the wireless service access point to an intermediate frequency (IF) control signal and transferring the IF control signal between the wireless service access point and the first combining unit; and
a reference clock signal generator connected to the first combining unit and capable of generating a reference clock signal, wherein the first combining unit is capable of receiving the reference clock signal and transmitting the reference clock signal over the cable run to at least one antenna unit.
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Accused Products
Abstract
A method and system suitable for supporting various wireless services on a Distributed Antenna System (DAS). The DAS can provide wireless services including voice and data services using the same equipment. The DAS can include one or more active antenna units controlled by an access point, and includes control channels for transferring control and status information between the access point and the antenna. The control channels can be transferred over a separate cable, or transferred using one or more intermediate frequency signals transferred over existing cables. The control channels can be used to configure and control and receive status from the managed components of the DAS including active antennas, control the amplifiers used to process TDD signals, and control the switching of diversity antenna systems.
917 Citations
16 Claims
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1. A distributed antenna system comprising:
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a first combining unit; at least one cable run connecting the first combining unit to at least one antenna unit; the first combining unit including a connection capable of connecting the first combining unit to a source transmitter, the first combining unit being capable of transferring signals corresponding to a first wireless service between the source transmitter and the cable run; at least one wireless service access point connected to the first combining unit, the first combining unit being capable of transferring signals corresponding to a second wireless service between the at least one wireless access point and the cable run; a first interface module connected to the wireless service access point and capable of converting a control signal sent from the wireless service access point to an intermediate frequency (IF) control signal and transferring the IF control signal between the wireless service access point and the first combining unit; and a reference clock signal generator connected to the first combining unit and capable of generating a reference clock signal, wherein the first combining unit is capable of receiving the reference clock signal and transmitting the reference clock signal over the cable run to at least one antenna unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A distributed antenna system comprising:
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a first combining unit; at least one cable run connecting the first combining unit to at least one diversity antenna unit having two or more antenna elements; the first combining unit including a source transmitter connection capable of connecting a source transmitter to the first combining unit, the first combining unit being capable of transferring signals corresponding to a first wireless service between the source transmitter and the cable run; at least one wireless service access point connected to the first combining unit, the first combining unit being capable of transferring signals corresponding to a second wireless service between the at least one wireless access point and the cable run; a first interface module connected to the wireless service access point and capable of converting a control signal sent from the wireless service access point to an intermediate frequency (IF) control signal; and a second combining unit connected to the cable run and capable of receiving the IF control signal and converting the IF control signal to a control signal that is used to control amplification functions of the at least one antenna unit and to select which diversity antenna element is used to broadcast signals corresponding to the second wireless service. - View Dependent Claims (10, 11, 12, 13)
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14. A distributed antenna system comprising:
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a first combining unit; at least one coaxial cable run connecting the first combining unit to at least one antenna unit; the first combining unit including a connection capable of connecting a source transmitter to the first combining unit, the first combining unit being capable of transferring signals corresponding to a first wireless service between the source transmitter and the coaxial cable run; at least one wireless service access point connected to the first combining unit, the first combining unit being capable of transferring signals corresponding to a second wireless service between the at least one wireless access point and the coaxial cable run; a first interface module connected to the wireless service access point and capable of converting a first control signal sent from the wireless service access point to a second control signal, and transferring the second control signal between the wireless service access point and the first combining unit, the first combining unit being capable of transferring the control signal between the first interface module and the coaxial cable run; a second combining unit connected to the cable run and capable of receiving the second control signal and converting the second control signal to a control signal that is transferred to the at least one antenna unit to control at least one amplification function of the at least one antenna unit; and a reference clock signal generator connected to the first combining unit and capable of generating a reference clock signal, the first combining unit being capable of receiving the reference clock signal and transmitting the reference clock signal over the coaxial cable run to at least one antenna unit. - View Dependent Claims (15, 16)
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Specification