Synchronization and fault management in a distributed antenna system
AssigneeCommScope Technologies LLC
InventorMilun Jovanovic
Life of this patent
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Abstract
In an embodiment, a method comprises: sending a message from a master unit of a distributed antenna system to a remote unit of the distributed antenna system, wherein the message includes a list of service frequencies and applied standards for a base station; sending a downlink signal generated based on a base station signal from the master unit to the remote unit; decoding the downlink signal based on the list of service frequencies and applied standards for the base station; extracting a base station clock signal from the decoded downlink signal; and synchronizing an internal clock of the remote unit to the base station clock using the extracted base station clock signal.
Claims20
A method, comprising:
- sending a message from a master unit of a distributed antenna system to a remote unit of the distributed antenna system, wherein the message includes a list of service frequencies and applied standards for a base station;
- sending a downlink signal generated based on a base station signal from the master unit to the remote unit;
- decoding, at the remote unit, the downlink signal based on the list of service frequencies and applied standards for the base station;
- extracting, at the remote unit, a base station clock signal from the decoded downlink signal to produce an extracted base station clock signal;
- and
- synchronizing, at the remote unit, an internal clock of the remote unit to a base station clock using the extracted base station clock signal.
A method, comprising:
- receiving a message from a front end unit of a distributed antenna system, wherein the message includes a list of service frequencies and applied standards for a base station;
- receiving a downlink signal that is generated based on a base station signal;
- decoding, at a remote unit communicatively coupled to the front end unit, the downlink signal based on the list of service frequencies and applied standards for the base station to produce a decoded downlink signal;
- extracting, at the remote unit, a base station clock signal from the decoded downlink signal to produce an extracted base station clock signal;
- and
- synchronizing, at the remote unit, an internal clock of a remote unit to a base station clock using the extracted base station clock signal.
A method, comprising:
- sending a synchronization message from a master unit of a distributed antenna system to a remote unit of the distributed antenna system, wherein the synchronization message includes information regarding a base station clock and measured jitter or clock phase of an internal clock of the remote unit;
- sending a message to the remote unit including adjustments to playout delay of a playout buffer of the remote unit;
- synchronizing the internal clock to the base station clock using the information in the synchronization message received from the master unit;
- and
- adjusting the playout delay of the playout buffer of the remote unit based on the message from the master unit.
Dependencies are inferred from the claim text.