High capacity wireless communications systems and methods

• US 9,020,070 B2
• Filed: 01/07/2013
• Issued: 04/28/2015
• Est. Priority Date: 05/04/2012
• Status: Expired due to Fees

• Current Assignee: E-Blink
• Original Assignee: E-Blink
• Inventors: Bellot, Laurent, Blanc, Stphane, Bittar, Christian, Boukour, Tariq, Elsayed, Jawad, Plumecoq, Jean-Christophe, Rolland, Alain
• Primary Examiner(s): Kim, Kevin
• Application Number:
  US13/735,903
• Publication Number:
  US 20130294541A1
• Time in Patent Office: 841 Days
• Field of Search: 375/267, 375/260, 375/299
• US Class Current: 375/299
• CPC Class Codes: H04L 25/02 Details ; arrangements for supplying electrical power along data transmission lines systems for transmitting signals via power distribution lines H04B3/54
• CPC Class Codes: H04L 5/0001 Arrangements for dividing the transmission path duplexing H04L5/14; multiplexing of different sources on one path H04J
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/0247 based on conditions of the access network or the infrastructure network central resource management H04W28/16
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 88/085 Access point devices with remote components

Abstract

Systems and methods for efficiently transmitting information over a wireless network segment are provided herein. An exemplary method may include separating, via a transmitter, digital fronthaul data into general information and radio signal information, transmitting the general information over the wireless network segment from the transmitter to a receiver on a first communications channel, and transmitting the radio signal information over the wireless network segment from the transmitter to the receiver on a second communications channel.

Claims

1. A method of efficiently transmitting information over a wireless network segment, the method comprising:

separating, via a transmitter, digital fronthaul data into general information and radio signal information, wherein the radio signal information is a representation of a signal in an analog format and the general information is in a digital format;

transmitting the general information in a digital format over the wireless network segment from the transmitter to a receiver on a first communications channel; and

transmitting the radio signal information in an analog format over the wireless network segment from the transmitter to the receiver on a second communications channel.

2. The method according to claim 1, wherein separating comprises converting the radio signal information into a plurality of analog radio frequency carrier signals;

and digitally modulating the general information.

3. The method according to claim 2, wherein the radio signal information is converted into the plurality of analog radio frequency carrier signals using any of filtering, digital up converting, in-phase and in-quadrature mixing, mixing, digital to analog conversion, and combinations thereof.

4. The method according to claim 1, further comprising processing the radio signal information using at least one radio access technology protocol used in the wireless network segment.

5. The method according to claim 1, further comprising storing at least a portion of the radio signal information in a buffer prior to transmitting the radio signal information over the wireless network segment from the transmitter to the receiver on the second communications channel.

6. The method according to claim 1, further comprising storing at least a portion of the general information in a buffer prior to transmitting the general information over the wireless network segment from the transmitter to the receiver on the first communications channel.

7. The method according to claim 1, wherein separating comprises:

demultiplexing digital protocol frames of the digital fronthaul data;

determining words associated with the general information and words associated with the radio signal information; and

separating the general information from the radio signal information based upon the step of determining.

8. The method according to claim 7, further comprising converting the words associated with the radio signal information into analog radio frequency carrier signals.

9. The method according to claim 8, further comprising recreating the words associated with the radio signal information from the analog radio frequency carrier signals.

10. The method according to claim 9, wherein the words are recreated using any of filtering, digital down converting, in-phase and in-quadrature mixing, mixing, digital to analog conversion, and combinations thereof.

11. The method according to claim 8, further comprising multiplexing the words associated with the radio signal information and the words associated with the general information to recover the digital protocol frames.

12. The method according to claim 11, further comprising multiplexing the digital protocol frames to recreate the digital fronthaul data.

13. The method according to claim 7, further comprising removing unneeded data from the digital protocol frames.

14. The method according to claim 1, further comprising transmitting synchronization information between the transmitter and the receiver.

15. The method according to claim 14, further comprising utilizing the synchronization information to reassemble the radio signal information and the general information into the digital fronthaul data.

16. The method according to claim 1, further comprising processing the general information prior to transmitting the general information.

17. A system, comprising a baseband unit (BBU) communicatively coupled with a radio frequency unit (RFU), at least one of the BBU and the RFU being configured to separate digital fronthaul data into digital general information and radio signal information representing an analog signal, transmit the digital general information over a wireless network segment on a first communications channel, and transmit the radio signal information over the wireless network segment in analog format on a second communications channel.

18. The system according to claim 17, wherein the baseband unit comprises a demultiplexer that demultiplexes radio signal information into analog carrier images.

19. The system according to claim 17, wherein the radio frequency unit comprises a multiplexer that multiplexes analog carrier images into the radio signal information.

20. The system according to claim 19, further comprising a radio frequency unit coupling module communicatively coupled with the radio frequency unit that adapts the carrier images based on an associated radio access technology protocol.

21. The system according to claim 17, wherein the baseband unit transmits the radio signal information representing the analog signal over the wireless network segment to a second radio frequency unit, in analog format, via a second communications channel.

22. The system according to claim 19, wherein the RFU is controlled using control information received by the RFU coupling unit.

23. A method of transforming information for efficient transmission over a wireless network segment, the method comprising:

separating, via a transmitter, digital fronthaul data into general information and radio signal information, wherein the radio signal information is a digital representation of an analog signal and the general information is in a digital format;

converting the radio signal information into a plurality of radio frequency carrier signals in analog format; and

digitally modulating the general information in the digital format.