SYSTEMS, METHODS, AND DEVICES FOR INCREASING RADIO FREQUENCY (RF) POWER IN DISTRIBUTED ANTENNA SYSTEMS
First Claim
1. A communications system, comprising:
- at least one remote unit (RU) configured to receive a first downlink optical radio frequency (RF) communications signal and a second downlink optical RF communications signal, wherein the at least one RU comprises;
at least one optical-to-electrical (O/E) converter configured to convert the first downlink optical RF communications signal and the second downlink optical RF communications signal to a respective first downlink electrical RF communications signal and a second downlink electrical RF communications signal; and
at least one electrical-to-optical (E/O) converter configured to convert an uplink electrical RF communications signal to an uplink optical RF communications signal; and
at least one remote expansion unit (RXU) operatively coupled to the at least one RU and comprising at least one antenna, the at least one RXU configured to receive the second downlink electrical RF communications signal from the at least one RU.
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Accused Products
Abstract
A communications system is disclosed that includes at least one remote expansion unit (RXU) that is operatively coupled to at least one remote unit (RU). The at least one RU is configured to receive a first and a second downlink optical radio frequency (RF) communications signal. The at least one RU comprises at least one optical-to-electrical (O/E) converter configured to convert the first and second downlink optical RF communications signals to respective first and second downlink electrical RF communications signals. The at least one RXU is configured to receive the second downlink electrical RF communications signal from the at least one RU. The RU may comprise selection circuitry configured to identify which of the downlink electrical communications signals are sent to the RXU. The RXU may be configured to provide an uplink electrical RF communications signal received from a client device to the RU.
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Citations
20 Claims
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1. A communications system, comprising:
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at least one remote unit (RU) configured to receive a first downlink optical radio frequency (RF) communications signal and a second downlink optical RF communications signal, wherein the at least one RU comprises; at least one optical-to-electrical (O/E) converter configured to convert the first downlink optical RF communications signal and the second downlink optical RF communications signal to a respective first downlink electrical RF communications signal and a second downlink electrical RF communications signal; and at least one electrical-to-optical (E/O) converter configured to convert an uplink electrical RF communications signal to an uplink optical RF communications signal; and at least one remote expansion unit (RXU) operatively coupled to the at least one RU and comprising at least one antenna, the at least one RXU configured to receive the second downlink electrical RF communications signal from the at least one RU. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communications system, comprising:
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at least one remote unit (RU) configured to receive a plurality of downlink optical communications signals; and at least one remote expansion unit (RXU) operatively coupled to the at least one RU and comprising at least one antenna configured to communicate with one or more client devices, wherein the at least one RU comprises; at least one optical-to-electrical (O/E) converter configured to convert the plurality of downlink optical communications signals to a respective plurality of downlink electrical communications signals; at least one electrical-to-optical (E/O) converter configured to convert an uplink electrical communications signal to an uplink optical communications signal; and selection circuitry configured to identify selected signals from the plurality of downlink electrical communications signals to be sent to the at least one RXU. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification