Synchronizing multiple-input/multiple-output signals in distributed antenna systems
AssigneeAndrew Wireless Systems GmbH
InventorVan E. Hanson
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Abstract
The present disclosure describes devices, systems, and methods for synchronizing multiple-input/multiple-output (“MIMO”) signals or other signals in telecommunication systems. Some aspects may involve transmitting signals between a head-end unit and remote units of a telecommunication system. A first delay of a signal path between the head-end unit and a first remote unit of the remote units may be determined to be greater than each delay of signal paths between the head-end unit and other remote units. Based on the first delay, the telecommunication system may be configured to delay transmission of additional signals such that the additional signals are simultaneously transmitted to another unit by either the head-end unit or the remote units.
Claims20
A method comprising:
- transmitting signals between a head-end unit and remote units of a telecommunication system;
- determining that a first delay of a signal path between the head-end unit and a first remote unit of the remote units is greater than each delay of signal paths between the head-end unit and other remote units;
- and
- configuring, based on the first delay, the telecommunication system to delay transmission of additional signals such that the additional signals are simultaneously transmitted to another unit by either the head-end unit or the remote units.
A telecommunications system comprising:
- a plurality of remote units configured to transmit downlink signals to terminal devices and receive uplink signals from the terminal devices;
- a head-end unit configured to distribute the downlink signals to the plurality of remote units and receive the uplink signals from the plurality of remote units;
- and
- a processing device configured to:
- determine that a first delay of a signal path between the head-end unit and a first remote unit of the plurality of remote units is greater than each delay of the other delays of other signal paths between the head-end unit and other remote units;
- and
- instruct, based on the first delay, the telecommunication system to delay the transmission of additional multiple-input/multiple-output signals such that the additional multiple-input/multiple-output signals are simultaneously transmitted to another unit by either the head-end unit or remote units.
A non-transitory computer-readable medium having instructions stored thereon that are executable by a processing device to perform operations, the operations comprising:
- determining, based on timestamps included in Ethernet-framed data transmitted between a head-end unit in a telecommunication system and a plurality of remote units, that a first delay of a signal path between the head-end unit and a first remote unit of the plurality of remote units is greater than each of the other delays of other signal paths between the head-end unit and other remote units;
- and
- configuring, based on the first delay, the telecommunication system to delay transmission of additional Ethernet-framed data representing a set of multiple-input/multiple-output signals such that the additional Ethernet-framed data are simultaneously transmitted to another device by either the head-end unit or the remote units.
Dependencies are inferred from the claim text.