Multichannel i/q interface between a base station and a repeater
AssigneeCommScope Technologies LLC
InventorKeld Knut Lange
Life of this patent
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Abstract
Certain features relate to a digital multichannel interface between a base station and a repeater in a telecommunications system, such as a distributed antenna system. The digital multichannel interface can provide streams of I/Q samples that carry information from multiple carriers of a wideband communications signal as well as semi-static control information for the telecommunications system. The digital multichannel interface can also transport frame timing information between the base station and the repeater. The frame timing information can maintain synchronization between the uplink transmit frames carrying uplink I/Q samples and the downlink transmit frames carrying downlink I/Q samples.
Claims21
A digital multichannel interface for a base station, comprising:
- a base station downlink interface configured to (i) generate, according to frame timing information extracted from uplink transmit frames received from a repeater unit by a base station uplink interface in the base station, downlink transmit frames including a plurality of reformatted wideband downlink I/Q data streams, and (ii) provide the downlink transmit frames to the repeater unit.
A digital multichannel interface for a repeater unit, comprising:
- a repeater uplink interface configured to (i) generate, according to frame timing information extracted from downlink transmit frames received from a base station by a repeater downlink interface in the repeater, uplink transmit frames including a plurality of wideband reformatted uplink I/Q data streams, and (ii) provide the uplink transmit frames to the base station.
A method, comprising:
- receiving, at a base station downlink interface, a plurality of reformatted wideband downlink I/Q data streams;
- receiving, at the base station downlink interface, a base station framing clock signal including frame timing information generated at a repeater unit;
- generating downlink transmit frames by multiplexing the plurality of reformatted wideband downlink I/Q data streams according to the frame timing information included in the base station framing clock signal;
- and
- transmitting the downlink transmit frames to the repeater unit.
A digital multichannel interface for a base station, comprising:
- a base station downlink interface configured to:
- (i) receive a plurality raw wideband downlink I/Q data streams from a digital front end interfacing with a baseband unit of the base station, (ii) generate serialized reformatted wideband downlink I/Q data streams by sampling the plurality of raw wideband downlink I/Q data streams and multiplexing the sampled plurality of raw wideband downlink I/Q data streams, and (iii) provide the serialized reformatted wideband downlink I/Q data streams to a repeater downlink interface of a repeater unit, the repeater unit configured to transmit information carried by the serialized reformatted wideband downlink I/Q data streams to one or more remote units configured to provide the downlink I/Q data streams to user equipment devices.
Dependencies are inferred from the claim text.