US 10,855,338 B2Granted

Master reference for base station network interface sourced from distributed antenna system

AssigneeCommScope Technologies LLC

InventorsPhilip M. Wala, Dean Zavadsky, Jody Forland, Jeffrey J. Cannon, John M. Hedin

Life of this patent

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Abstract

A distributed antenna system (DAS) includes: a base station network interface; and a remote antenna unit communicatively coupled to the first base station interface, the remote antenna unit including an antenna. The remote antenna unit configured to: receive a radio frequency band signal from a subscriber unit; convert the radio frequency band signal into a data stream; and communicate the data stream with the first base station network interface. The first base station network interface is configured to: convert the data stream or a signal derived from the data stream into a communication signal, wherein a mater reference clock is distributed between various components of the DAS to keep the various components of the DAS locked to a single clock; and communicate the communication signal and the master reference clock to an external device, the external device configured to lock its clock to the master reference clock.

Claims15

Dependent claims

A distributed antenna system comprising:

a base station network interface;
and
a remote antenna unit communicatively coupled to the base station network interface, the remote antenna unit including an antenna, the remote antenna unit configured to:
receive a radio frequency band signal from a subscriber unit;
convert the radio frequency band signal into a data stream;
and
communicate the data stream with the base station network interface;
and
wherein the base station network interface is configured to:
convert the data stream or a signal derived from the data stream into a digital communication signal, wherein a master reference clock is embedded in the digital communication signal;
and
communicate the digital communication signal including the master reference clock to an external device external to the distributed antenna system, the external device configured to extract the master reference clock embedded in the digital communication signal to lock its clock to the master reference clock;
and wherein the distributed antenna system is configured to:
distribute the master reference clock to various components of the distributed antenna system to keep the various components of the distributed antenna system locked to a single clock.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/030,642Filed 9 Jul 2018 · continuation
Priority: 22 Feb 2013
Published: US 2018/0323831 A18 Nov 2018
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04B 7/024
Site diversity; Macro-diversity: co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input…
H01Q 1/246
Used in mobile communications, e.g. GSM: specially adapted for base stations
H03J 7/04
Automatic frequency control: where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically…
H04B 7/26
For communication between two or more posts: at least one of which is mobile

Family

Application61/767,968Us provisional application · filed 22 Feb 2013
Application14/187,115Parent of this continuation · filed 21 Feb 2014
US 2018/0323831 A1Pre-grant publication · published 8 Nov 2018
US 10,020,850 B2Parent of this continuation
US 2014/0243033 A1Published application
US 10,855,338 B2This patent

From the US filing history. Foreign family members aren’t listed.