Method and system for a repeater network that utilizes distributed transceivers with array processing

• US 10,103,853 B2
• Filed: 12/22/2017
• Issued: 10/16/2018
• Est. Priority Date: 10/17/2011
• Status: Active Grant

• Current Assignee: Peltbeam Incorporated
• Original Assignee: Golba LLC
• Inventors: Moshfeghi, Mehran
• Primary Examiner(s): Chakraborty, Raj
• Application Number:
  US15/853,537
• Publication Number:
  US 20180139016A1
• Time in Patent Office: 298 Days
• Field of Search: 455 7
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 1/401 for selecting or indicating operating mode
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0408 using two or more beams, i.e. beam diversity
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04B 7/043 using best eigenmode, e.g. beam forming or beam steering
• CPC Class Codes: H04B 7/0689 using different transmission schemes, at least one of them being a diversity transmission scheme
• CPC Class Codes: H04B 7/0897 using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
• CPC Class Codes: H04L 27/12 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A device that comprises a plurality of distributed transceivers, a central processor and a network management engine may be configured to function as relay device, relaying an input data stream from a source device to at least one other device. The relaying may include configuring one or more of the plurality of distributed transceivers to particular mode of relay operation and receiving the input data stream from the source device via at least one of the configured one or more of the plurality of distributed transceivers. The relaying may also include transmitting at least one relay data stream corresponding to the input data stream to the at least one other device, via at least one of the configured one or more of the plurality of distributed transceivers.

Claims

1. A method of relaying data streams, the method comprising:

in a relay device that comprises a plurality of distributed transceivers, wherein each distributed transceiver of the relay device comprises an antenna array comprising a plurality of antenna elements;

configuring beamforming setting for the antenna arrays of a first set of distributed transceivers in the plurality of distributed transceivers of the relay device to establish a first link between the relay device and a source device;

configuring beamforming setting for the antenna arrays of a second set of distributed transceivers in the plurality of distributed transceivers of the relay device to establish a second link between the relay device and a destination device; and

in a passive mode of relay, concurrently (i) receiving a data stream from the source device through the first link and (ii) forwarding the data stream to the destination device through the second link, wherein in the passive mode of relay the received data stream is forwarded to the destination device with no data de-modulation applied to the data stream,

wherein configuring beamforming setting for the antenna array of each particular distributed transceiver in the first and second sets of distributed transceivers comprises phase shifting a signal provided to each antenna element within the antenna array of the particular distributed transceiver by a different value, and

wherein configuring beamforming setting for the antenna arrays of the first and second sets of distributed transceivers comprises selecting the distributed transceivers in the first and second sets of distributed transceivers such that a larger number of antenna elements are utilized for establishing the first link than the second link in order to create a more omni-directional antenna pattern comprising a wider beam lobe for the first link than the second link.

2. The method of claim 1, wherein the relay device receives the data stream from the source device and forwards the data stream to the destination device over a same frequency channel.

3. The method of claim 1, wherein the relay device receives the data stream from the source devices over a first frequency channel and relays the data stream to the destination device over a second frequency channel, wherein the first and second frequency channels are different.

4. The method of claim 1, wherein a wider beam lobe for a link makes the link less susceptible to direction estimation errors.

5. The method of claim 1 further comprising:

down converting the data stream received from the source device from a first carrier frequency to an intermediate frequency;

up converting the data stream from the intermediate frequency to the first carrier frequency; and

forwarding the data stream to the destination device using the first carrier frequency.

6. The method of claim 1 further comprising:

down converting the data stream received from the source device from a first carrier frequency to an intermediate frequency;

up converting the data stream from the intermediate frequency to a second carrier frequency, wherein the first and second carrier frequencies are different; and

forwarding the data stream to the destination device using the second carrier frequency.

7. The method of claim 1 further comprising:

down converting the data stream received from the source device from a first carrier frequency to a baseband signal;

up converting the data stream from the baseband signal to the first carrier frequency; and

forwarding the data stream to the destination device using the first carrier frequency.

8. The method of claim 1, wherein the destination device is a first destination device in a plurality of destination devices, the method further comprising concurrently forwarding the data stream to the plurality of destination devices in the passive mode of relay.

9. The method of claim 1, wherein a line-of-sight (LOS) exists between the source and destination devices, wherein at least one of the source and destination devices has low power, wherein the data stream from the source device is forwarded to the destination device through the relay device despite the existence of the LOS between the source and destination devices in order to save power in said at least one of the source and destination devices that has low power.

10. The method of claim 1, wherein the data stream from the source device is forwarded to the destination device through the relay device despite an existence of a line-of-sight (LOS) between the source and destination devices based on a set of capabilities of the source device, the relay device, and the destination device.

11. The method of claim 1, wherein the beamforming setting for the antenna arrays of the first and second sets of distributed transceivers allows concurrent use of a same radio frequency (RF) channel for receiving and forwarding the data stream by creating non-overlapping antenna patterns that minimize interference.

12. The method of claim 1, wherein the relay device is a first relay device in a relay mesh comprising a set of relay devices other than the first relay device, wherein each relay device in the set of relay devices comprises a set of transceivers, wherein at least one of said source and destination devices is a relay device in the relay mesh, the method further comprising:

dynamically changing a selection of transceivers of each device utilized for said receiving and forwarding of the data stream based on a set of criteria comprising one or more of (i) real-time monitoring of a communication environment within the relay mesh, (ii) a location of each device within the mesh, and (iii) a proximity of each device to other devices in the mesh.

13. The method of claim 1, wherein the relay device is a first relay device in a relay mesh comprising a set of relay devices other than the first relay device, the method further comprising:

selecting at least one relay device in the set of relay devices to relay said data stream based on a set of criteria comprising one or more of (i) real-time monitoring of a communication environment within the relay mesh, (ii) a location of each device within the mesh, and (iii) a proximity of each device to other devices in the mesh.

14. The method of claim 1 further comprising:

calculating a signal-to-noise ratio (SNR) of the data stream received from the source device; and

determining a quality of the received data stream based on the SNR,

wherein forwarding the data stream to the destination device in the passive mode of relay comprises determining that the quality of the received data stream is sufficient for forwarding the data stream to the destination device in the passive mode of relay.

15. A relay device, comprising:

a plurality of distributed transceivers, each distributed transceiver of the relay device comprising an antenna array comprising a plurality of antenna elements; and

a processor configured to;

configure beamforming setting for the antenna arrays of a first set of distributed transceivers in the plurality of distributed transceivers of the relay device to establish a first link between the relay device and a source device; and

configure beamforming setting for the antenna arrays of a second set of distributed transceivers in the plurality of distributed transceivers of the relay device to establish a second link between the relay device and a destination device;

the first and second sets of distributed transceivers configured to, in a passive mode of relay, concurrently (i) receive a data stream from the source device through the first link and (ii) forward the data stream to the destination device through the second link,

wherein in the passive mode of relay the received data stream is forwarded to the destination device with no data de-modulation applied to the data stream,

wherein configuring beamforming setting for the antenna array of each particular distributed transceiver in the first and second sets of distributed transceivers comprises phase shifting a signal provided to each antenna element within the antenna array of the particular distributed transceiver by a different value, and

wherein configuring beamforming setting for the antenna arrays of the first and second sets of distributed transceivers comprises selecting the distributed transceivers in the first and second sets of distributed transceivers such that a larger number of antenna elements are utilized for establishing the first link than the second link in order to create a more omni-directional antenna pattern comprising a wider beam lobe for the first link than the second link.

16. The relay device of claim 15, wherein the relay device receives the data stream from the source device and forwards the data stream to the destination device over a same frequency channel.

17. The relay device of claim 15, wherein the relay device receives the data stream from the source devices over a first frequency channel and relays the data stream to the destination device over a second frequency channel, wherein the first and second frequency channels are different.

18. The relay device of claim 15, wherein a wider beam lobe for a link makes the link less susceptible to direction estimation errors.

19. The relay device of claim 15 further comprising:

a set of down converters configured to down convert the data stream received from the source device from a first carrier frequency to an intermediate frequency; and

a set of up converters configured to up convert the data stream from the intermediate frequency to the first carrier frequency,

the second set of distributed transceivers configured to forward the data stream to the destination device using the first carrier frequency.

20. The relay device of claim 15 further comprising:

a set of down converters configured to down convert the data stream received from the source device from a first carrier frequency to an intermediate frequency; and

a set of up converters configured to up convert the data stream from the intermediate frequency to a second carrier frequency, wherein the first and second carrier frequencies are different,

the second set of distributed transceivers configured to forward the data stream to the destination device using the second carrier frequency.

21. The relay device of claim 15 further comprising:

a set of down converters configured to down convert the data stream received from the source device from a first carrier frequency to a baseband signal; and

a set of up converters configured to up convert the data stream from the baseband signal to the first carrier frequency,

the second set of distributed transceivers configured to forward the data stream to the destination device using the first carrier frequency.

22. The relay device of claim 15, wherein the destination device is a first destination device in a plurality of destination devices, the first and second set of distributed transceivers further configured to concurrently forward the data stream to the plurality of destination devices in the passive mode of relay.

23. The relay device of claim 15, wherein a line-of-sight (LOS) exists between the source and destination devices, wherein when at least one of the source and destination devices has low power, the data stream from the source device is forwarded to the destination device through the relay device despite the existence of the LOS between the source and destination devices in order to save power in said at least one of the source and destination devices that has low power.

24. The relay device of claim 15, wherein the data stream from the source device is forwarded to the destination device through the relay device despite an existence of a line-of-sight (LOS) between the source and destination devices based on a set of capabilities of the source device, the relay device, and the destination device.

25. The relay device of claim 15, wherein the beamforming setting for the antenna arrays of the first and second sets of distributed transceivers allows concurrent use of a same radio frequency (RF) channel for receiving and forwarding the data stream by creating non-overlapping antenna patterns that minimize interference.

26. The relay device of claim 15, wherein the relay device is a first relay device in a relay mesh comprising a set of relay devices other than the first relay device, wherein each relay device in the set of relay devices comprises a set of transceivers, wherein at least one of said source and destination devices is a relay device in the relay mesh, the processor further configured to:

dynamically change a selection of transceivers of each device utilized for said receiving and forward of the data stream based on a set of criteria comprising one or more of (i) real-time monitoring of a communication environment within the relay mesh, (ii) a location of each device within the mesh, and (iii) a proximity of each device to other devices in the mesh.

27. The relay device of claim 15, wherein the relay device is a first relay device in a relay mesh comprising a set of relay devices other than the first relay device, the processor further configured to:

select at least one relay device in the set of relay devices to relay said data stream based on a set of criteria comprising one or more of (i) real-time monitoring of a communication environment within the relay mesh, (ii) a location of each device within the mesh, and (iii) a proximity of each device to other devices in the mesh.

28. The relay device of claim 15, the processor further configured to:

calculate a signal-to-noise ratio (SNR) of the data stream received from the source device; and

determine a quality of the received data stream based on the SNR,

wherein forwarding the data stream to the destination device in the passive mode of relay comprises determining that the quality of the received data stream is sufficient for forwarding the data stream to the destination device in the passive mode of relay.