Radio with antenna array and multiple RF bands

• US 9,713,155 B2
• Filed: 01/11/2017
• Issued: 07/18/2017
• Est. Priority Date: 08/17/2011
• Status: Active Grant

• Current Assignee: COMS IP Holdings LLC
• Original Assignee: CBF Networks, Inc. (COMSovereign Holding Corp.)
• Inventors: Negus, Kevin J.
• Primary Examiner(s): Foud, Hicham
• Assistant Examiner(s): Sharma, Gautam
• Application Number:
  US15/403,713
• Publication Number:
  US 20170127421A1
• Time in Patent Office: 188 Days
• Field of Search: None
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H01Q 21/29 Combinations of different interacting antenna units for giving a desired directional characteristic H01Q25/00 takes precedence
• CPC Class Codes: H01Q 25/00 Antennas or antenna systems providing at least two radiating patterns arrangements for changing or varying the orientation or the shape of the directional pattern H01Q3/00
• CPC Class Codes: H01Q 25/005 providing two patterns of opposite direction; back to back antennas H01Q25/004 takes precedence
• CPC Class Codes: H01Q 5/50 Feeding or matching arrangements for broad-band or multi-band operation
• CPC Class Codes: H03F 3/24 of transmitter output stages
• CPC Class Codes: H04B 2001/0408 with power amplifiers
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 2025/03414 Multicarrier
• CPC Class Codes: H04L 25/03019 adaptive, i.e. capable of adjustment during data reception
• CPC Class Codes: H04L 27/01 Equalisers baseband equalizers at the transmitter end H04L25/03343; in analogue transmission systems H04B3/04, H04B7/005
• CPC Class Codes: H04L 27/2636 with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 27/2678 using cyclostationarities, e.g. cyclic prefix or postfix
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 52/52 : using AGC [Automatic Gain Control] circuits or amplifiers
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]

Abstract

A intelligent backhaul radio is disclosed that is compact, light and low power for street level mounting, operates at 100 Mb/s or higher at ranges of 300 m or longer in obstructed LOS conditions with low latencies of 5 ms or less, can support PTP and PMP topologies, uses radio spectrum resources efficiently and does not require precise physical antenna alignment.

Claims

1. A radio for exchanging one or more data interface streams with one or more other radios, said radio comprising:

a plurality of receive radio frequency (RF) chains, wherein at least a first subset of the plurality of receive RF chains is configured to convert from at least a respective one of a plurality of receive RF signals within at least a first receive frequency band to a respective one of a first plurality of receive chain output signals, and wherein at least a second subset of the plurality of receive RF chains is configured to convert from at least a respective one of a plurality of receive RF signals within at least a second receive frequency band to a respective one of a second plurality of receive chain output signals;

a plurality of transmit radio frequency (RF) chains, wherein at least a first subset of the plurality of transmit RF chains is configured to convert from at least a respective one of a first plurality of transmit chain input signals to a respective one of a plurality of transmit RF signals within a first transmit frequency band, and wherein at least a second subset of the plurality of transmit RF chains is configured to convert from at least a respective one of a second plurality of transmit chain input signals to a respective one of a plurality of transmit RF signals within a second transmit frequency band; and

a plurality of antenna elements, wherein at least a first subset of the plurality of antenna elements is configured to operate over at least both of the first transmit frequency band and the first receive frequency band and each antenna element of the first subset of the plurality of antenna elements is coupled or couplable to at least one of the first subset of the plurality of receive RF chains or coupled or couplable to at least one of the first subset of the plurality of transmit RF chains, and wherein at least a second subset of the plurality of antenna elements is configured to operate over at least both of the second transmit frequency band and the second receive frequency band and each antenna element of the second subset of the plurality of antenna elements is coupled or couplable to at least one of the second subset of the plurality of receive RF chains or coupled or couplable to at least one of the second subset of the plurality of transmit RF chains;

wherein the radio is configured to provide a base throughput capability using the first receive frequency band and the first transmit frequency band; and

wherein the radio is further configured to provide a surge throughput capability using the second receive frequency band and the second transmit frequency band.

2. The radio of claim 1, wherein the first transmit frequency band is coincident with the first receive frequency band.

3. The radio of claim 1, wherein a first frequency band comprises at least the first transmit frequency band and the first receive frequency band.

4. The radio of claim 3, wherein the first frequency band is a licensed band.

5. The radio of claim 3, wherein the first frequency band is either within a frequency range of between 2 GHz and 6 GHz or within a frequency range of above 10 GHz.

6. The radio of claim 1, wherein the second transmit frequency band is coincident with the second receive frequency band.

7. The radio of claim 1, wherein a second frequency band comprises at least the second transmit frequency band and the second receive frequency band.

8. The radio of claim 7, wherein the second frequency band is an unlicensed band.

9. The radio of claim 7, wherein the second frequency band is either within a frequency range of between 2 GHz and 6 GHz or within a frequency range of above 10 GHz.

10. The radio of claim 1, wherein at least one antenna element of the plurality of antenna elements is a directive gain antenna element.

11. The radio of claim 1, wherein at least one antenna element of the plurality of antenna elements is at least one of a patch antenna element, a dipole antenna element, or a slot antenna element.

12. The radio of claim 1, wherein at least one antenna element of the plurality of antenna elements is coupled or couplable to at least one receive RF chain or transmit RF chain via either at least one RF switch or at least one duplexer filter.

13. The radio of claim 1, wherein the radio is configured to use at least a Single-Carrier Frequency Domain Equalization (SC-FDE) modulation format.

14. The radio of claim 1, wherein the radio is configured to use at least an Orthogonal Frequency Division Multiplexing (OFDM) modulation format.

15. The radio of claim 1, wherein the radio is configured to transmit in the first transmit frequency band and receive in the first receive frequency band coincident in time for at least a period of time.

16. The radio of claim 1, wherein the radio is configured to transmit in the second transmit frequency band and receive in the second receive frequency band coincident in time for at least a period of time.

17. The radio of claim 1, wherein the surge throughput capability is higher than the base throughput capability.

18. The radio of claim 1, wherein the risk of temporal interference outage for the surge throughput capability is higher than for the base throughput capability.

19. The radio of claim 1, wherein at least one of the plurality of receive RF chains comprises at least a vector demodulator and two analog to digital converters that are configured to produce a respective one of a plurality of receive chain output signals, said respective one of the plurality of receive chain output signals comprised of digital baseband quadrature signals.

20. The radio of claim 1, wherein at least one of the plurality of transmit RF chains comprises at least a vector modulator and two digital to analog converters that are configured to produce a respective one of the plurality of transmit RF signals from a respective one of a plurality of transmit chain input signals comprised of digital baseband quadrature signals.