Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel

• US 10,356,786 B2
• Filed: 10/02/2018
• Issued: 07/16/2019
• Est. Priority Date: 09/16/2015
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Gerszberg, Irwin, Kafka, Henry, Henry, Paul Shala, Bennett, Robert, Barzegar, Farhad, Barnickel, Donald J, Willis, III, Thomas M.
• Primary Examiner(s): Lin, Will W
• Application Number:
  US16/149,407
• Publication Number:
  US 20190037573A1
• Time in Patent Office: 287 Days
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Aspects of the subject disclosure may include, for example, receiving, by a network element of a distributed antenna system, a reference signal, an ultra-wideband control channel and a first modulated signal at a first carrier frequency, the first modulated signal including first communications data provided by a base station and directed to a mobile communication device. The instructions in the ultra-wideband control channel direct the network element of the distributed antenna system to convert the first modulated signal at the first carrier frequency to the first modulated signal in a first spectral segment. The reference signal is received at an in-band frequency relative to the control channel. Other embodiments are disclosed.

Claims

1. A method, comprising:

receiving, by a system including circuitry, a first modulated signal in a first spectral segment directed to a mobile communication device, wherein the first modulated signal conforms to a signaling protocol;

converting, by the system, the first modulated signal in the first spectral segment to the first modulated signal in a second spectral segment based on a signal processing of the first modulated signal and without modifying the signaling protocol of the first modulated signal, wherein the second spectral segment is outside the first spectral segment;

transmitting, by the system, instructions in an ultra-wideband control channel to direct a network element of a distributed antenna system to convert the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment; and

transmitting, by the system, a first reference signal with the first modulated signal in the second spectral segment to the network element of the distributed antenna system, the first reference signal enabling the network element to generate a local oscillator signal at a frequency and a phase to reconvert the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment for wireless distribution of the first modulated signal to the mobile communication device in the first spectral segment while reducing a phase error when reconverting the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment.

2. The method of claim 1, wherein the first reference signal is transmitted at an in-band frequency relative to the ultra-wideband control channel.

3. The method of claim 1, further comprising:

receiving, via the ultra-wideband control channel from the network element of the distributed antenna system, control channel data that includes;

status information that indicates a network status of the network element, network device information that indicates device information of the network element or an environmental measurement indicating an environmental condition in proximity to the network element.

4. The method of claim 1, wherein the instructions further include a channel spacing, a guard band parameter, an uplink/downlink allocation, or an uplink channel selection.

5. The method of claim 1, wherein the first modulated signal is generated by modulating signals in a plurality of frequency channels according to the signaling protocol to generate the first modulated signal in the first spectral segment.

6. The method of claim 1, wherein the signaling protocol comprises a Long-Term Evolution (LTE) wireless protocol or a fifth generation cellular communications protocol.

7. The method of claim 1, wherein the converting by the system comprises up-converting the first modulated signal in the first spectral segment to the first modulated signal in the second spectral segment.

8. The method of claim 7, wherein the converting by the network element comprises down-converting the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment.

9. The method of claim 1, wherein the converting by the system comprises down-converting the first modulated signal in the first spectral segment to the first modulated signal in the second spectral segment.

10. The method of claim 9, wherein the converting by the network element comprises up-converting the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment.

11. The method of claim 1, further comprising receiving, by the system, a second modulated signal in a third spectral segment from the network element, wherein the mobile communication device generates the second modulated signal in a fourth spectral segment, and wherein the network element converts the second modulated signal in the fourth spectral segment to the second modulated signal in the third spectral segment and transmits the second modulated signal at the third spectral segment and a second reference signal.

12. The method of claim 11, further comprising:

converting, by the system, the second modulated signal the third spectral segment to the second modulated signal in the fourth spectral segment utilizing the second reference signal to remove distortion in the second modulated signal at the third spectral segment; and

sending, by the system, the second modulated signal in the fourth spectral segment to a base station for processing.

13. The method of claim 11, wherein the second spectral segment differs from the first spectral segment, and wherein the third spectral segment differs from the fourth spectral segment.

14. The method of claim 1, wherein the ultra-wideband control channel is transmitted via modulation of the first reference signal with the instructions included in the ultra-wideband control channel, and wherein the circuitry comprises analog signal processing circuitry that facilitates analog signal processing, wherein the signal processing comprises the analog signal processing, and wherein the analog signal processing does not require either an analog to digital conversion or a digital to analog conversion.

15. A device, comprising:

a base station interface configured to receive from a base station a first modulated signal in a first spectral segment for transmission to a mobile communication device, wherein the first modulated signal conforms to a signaling protocol; and

a transceiver configured to convert the first modulated signal in the first spectral segment to the first modulated signal in a second spectral segment based on a signal processing of the first modulated signal and without modifying the signaling protocol of the first modulated signal, wherein the transceiver is further configured to transmit instructions in an ultra-wideband control channel to direct a network element of a distributed antenna system to convert the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment and to transmit a first reference signal with the first modulated signal in the second spectral segment to the network element of the distributed antenna system for wireless distribution of the first modulated signal to the mobile communication device in a selected spectral segment, the first reference signal enabling the network element to convert the first modulated signal in the second spectral segment to the first modulated signal in the first spectral segment while reducing a phase error during processing of the first modulated signal from the second spectral segment to the first spectral segment.

16. The device of claim 15, wherein the first reference signal is transmitted at an in-band frequency relative to the ultra-wideband control channel.

17. The device of claim 15, wherein the transceiver receives, via the ultra-wideband control channel from the network element of the distributed antenna system, control channel data that includes:

status information that indicates a network status of the network element, network device information that indicates device information of the network element or an environmental measurement indicating an environmental condition in proximity to the network element.

18. The device of claim 15, wherein the transceiver receives a second modulated signal in a third spectral segment from the network element and a second reference signal, wherein the mobile communication device generates the second modulated signal in a fourth spectral segment, and wherein the network element converts the second modulated signal in the fourth spectral segment to the second modulated signal in the third spectral segment and transmits the second modulated signal in the third spectral segment.

19. A method, comprising:

receiving, by a network element of a distributed antenna system, a reference signal, an ultra-wideband control channel and a modulated signal in a first spectral segment, the modulated signal including communications data provided by a base station and directed to a mobile communication device, wherein instructions in the ultra-wideband control channel direct the network element of the distributed antenna system to convert the modulated signal in the first spectral segment to the modulated signal in a second spectral segment;

converting, by the network element, the modulated signal in the first spectral segment to the modulated signal in the second spectral segment in accordance with the instructions and based on a signal processing of the modulated signal and utilizing the reference signal to generate a local oscillator signal at a frequency and a phase to convert the modulated signal in the first spectral segment to the modulated signal in the second spectral segment while reducing distortion during the converting; and

wirelessly transmitting, by the network element, the modulated signal at the second spectral segment to the mobile communication device.

20. The method of claim 19, wherein the instructions of the ultra-wideband control channel are received in-band to the ultra-wideband control channel.