Full-duplex mesh networks

Patent metadata

Field	Value
Publication number	US-9923705-B2
Application number	US-201514876808-A
Country	US
Kind code	B2
Filing date	Oct 6, 2015
Priority date	Oct 6, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

Systems and methods relating to full duplex mesh networks are disclosed. In one embodiment, a mesh network comprising a plurality of transceiver nodes using a single frequency band may be disclosed, each transceiver node comprising: a first transceiver for transmitting and receiving to and from a backhaul node on the single frequency band; and a second transceiver for transmitting and receiving to and from an access node on the single frequency band, each transceiver of each transceiver node performing self-interference cancellation to send and receive full duplex data on the single frequency band at substantially the same time, thereby enabling the creation of a mesh network with at least one transceiver node having both access and backhaul using only the single frequency band.

First claim

The invention claimed is:

1. A mesh network comprising:
a first base station acting as a backhaul node, further comprising:
a first transceiver for transmitting and receiving to and from a first access node using a single frequency band, and
a second transceiver for transmitting and receiving to and from a second access node using the single frequency band;

a second base station, in communication with the first base station, that is the first access node; and
a third base station, in communication with the first base station, that is the second access node,
the first base station, the second base station, and the third base station configured to perform self-interference cancellation to send and receive full duplex data on the single frequency band, thereby enabling the creation of a mesh network having both access and backhaul using only the single frequency band and providing backhaul connectivity to a plurality of mobile devices connected to the second base station and the third base station through the first base station.

2. The mesh network of claim 1 , wherein the single frequency band is used by the first base station, the second base station, and the third base station.

3. The mesh network of claim 1 , wherein the first base station, the second base station, and the third base station comprise a single antenna for both transmitting and receiving on the single frequency band.

4. The mesh network of claim 1 , wherein the single frequency band is Long Term Evolution (LTE) band 14.

5. The mesh network of claim 1 , wherein the first base station, the second base station, and the third base station are capable of transmitting and receiving on one or more Long Term Evolution (LTE) frequency bands.

6. The mesh network of claim 1 , wherein each transceiver is enabled to provide full-duplex communication.

7. The mesh network of claim 1 , wherein each transceiver is a single antenna.

8. The mesh network of claim 1 , wherein the first base station, the second base station, and the third base station form a self-organizing mesh with access and backhaul without coordination from a core network.

9. The mesh network of claim 1 , wherein the first base station, the second base station, and the third base station are eNodeBs.

10. The mesh network of claim 1 , the first base station further comprising a self-interference cancellation circuit for canceling interference caused by transmission from the first transceiver at the first transceiver, and for cancelling interference caused by transmissions from the second transceiver at the second transceiver.

11. The mesh network of claim 1 , the first base station further comprising a self-interference cancellation circuit for canceling interference caused by transmission from the first transceiver at the second transceiver, and for cancelling interference caused by transmissions from the second transceiver at the first transceiver.

12. The mesh network of claim 1 , the backhaul node further configured to use a Long Term Evolution (LTE) uplink band for sending data and an LTE downlink band for receiving data.

13. The mesh network of claim 1 , the first base station further comprising a self-interference cancellation circuit for canceling interference at the first base station caused by transmission of data received from the second base station and the third base station.

14. The mesh network of claim 1 , wherein the first base station, the second transceiver base station, and the third base station have connectivity to at least two other nodes in the mesh network.

Assignees

• Parallel Wireless Inc

Inventors

• Mishra Rajesh Kumar
• Papa Steven Paul
• Cao Yang

Classifications

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/14 Primary

  Two-way operation using the same type of signal, i.e. duplex · CPC title