US 10,291,311 B2Granted

Method and apparatus for mitigating a fault in a distributed antenna system

AssigneeAT&T Intellectual Property I, L.P.

InventorIrwin Gerszberg

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Abstract

Aspects of the subject disclosure may include, for example, receiving a first wireless signal at a first carrier frequency, the first wireless signal including a first modulated signal generated by a second antenna system by frequency-shifting the first modulated signal from a first native frequency band to the first carrier frequency, receiving a second wireless signal at a second carrier frequency, the second wireless signal including a second modulated signal generated by a third antenna system by frequency-shifting the second modulated signal from a second native frequency band to the second carrier frequency, detecting a fault in the second antenna system, and responsive to the detecting, adjusting a power level of a first wireless transmission to generate an adjusted first wireless transmission directed to the third antenna system. Other embodiments are disclosed.

Claims20

Dependent claims

A method, comprising:

receiving, by a first antenna system of a distributed antenna system, a first wireless signal at a first carrier frequency, wherein the first wireless signal comprises a first modulated signal generated by modulating a first signal according to a first signaling protocol, and wherein a second antenna system of the distributed antenna system generates the first wireless signal by frequency-shifting the first modulated signal in a first cellular band to the first carrier frequency without modifying the first signaling protocol;
receiving, by the first antenna system, a second wireless signal at a second carrier frequency, wherein the second wireless signal comprises a second modulated signal generated by modulating a second signal according to a second signaling protocol, and wherein a third antenna system of the distributed antenna system generates the second wireless signal by frequency-shifting the second modulated signal in a second cellular band to the second carrier frequency without modifying the second signaling protocol;
detecting, by the first antenna system, an operational fault in the second antenna system responsive to determining that a first performance measurement of the first wireless signal compares unfavorably to a second performance measurement of the second wireless signal;
and
responsive to the detecting, adjusting, by the first antenna system, a first wireless transmission to generate an adjusted first wireless transmission directed to the third antenna system, wherein prior to the adjusting by the first antenna system, the first wireless transmission was directed to the second antenna system for processing.

2 more elements

A first antenna system of a distributed antenna system, comprising:

a first antenna;
a processing system including a processor;
and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, comprising:
receiving, by the first antenna, a first wireless signal at a first carrier frequency, wherein the first wireless signal comprises a first modulated signal, and wherein a second antenna system of the distributed antenna system generates the first wireless signal by frequency-shifting the first modulated signal in a first cellular band to the first carrier frequency;
receiving, by the first antenna, a second wireless signal at a second carrier frequency, wherein the second wireless signal comprises a second modulated signal, and wherein a third antenna system of the distributed antenna system generates the second wireless signal by frequency-shifting the second modulated signal in a second cellular band to the second carrier frequency;
detecting, by the first antenna system, an operational fault in the second antenna system responsive to determining that the second wireless signal has a first signal strength below a first threshold;
and
responsive to the detecting, adjusting a power level of a first wireless transmission, by the first antenna, to generate an adjusted first wireless transmission directed to the third antenna system, wherein prior to the adjusting by the first antenna system, the first wireless transmission was directed to the second antenna system for processing.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/260,426Filed 9 Sep 2016
Published: US 2018/0076876 A115 Mar 2018
Granted: 14 May 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 41/0816
Characterised by the conditions triggering a change of settings: the condition being an adaptation, e.g. in response to network events
H04B 7/0831
Using antenna selection: compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in…
H04L 12/12
Details: arrangements for remote connection or disconnection of substations or of equipment thereof
H04L 41/0668
Using network fault recovery: by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure