US 2017/0366238 A1 · SYSTEM AND METHOD FOR DISTRIBUTED MIMO COMMUNICATIONS

Abstract

The disclosure provides systems, devices, and methods for distributed relay multiple-in multiple-out (DR-MIMO) communications. The system can have a master transmit node that transmits a message to a master receive node via one or more relay nodes. The relay nodes can each relay a portion of the message, performing a time or frequency shift along with the relay. The multiple relay nodes can function as a distributed antenna array for one or both of the master transmit node and the master receive node, forming a transmit group and/or a receive group. The transmit group and the receive group can thus provide MIMO capabilities to the master transmit node and the master receive node. The master transmit node can transmit multiple spatial streams through distributed relay nodes. The master receive node can receive multiple data streams from distributed relay nodes and perform MIMO detection.

Claims20

Dependent claims

A method for distributed relay multiple-in multiple-out (DR-MIMO) communications in a wireless communication system having a transmit group and a receive group, the method comprising:

transmitting a message having a first spatial stream and a second spatial stream from a master transmit node of the transmit group toward the receive group, the first spatial stream spanning a first band and the second spatial stream spanning a second band;
capturing the second spatial stream at a first relay node of the of the transmit group;
relaying the second spatial stream by the first relay node of the transmit group in the first band as a relayed second spatial stream toward the receive group;
receiving a first data stream comprising the first spatial stream and the second spatial stream and a relayed second data stream comprising the first spatial stream and the second spatial stream at the master receive node;
and
reconstructing the message at a master receive node based on the first data stream and the relayed second data stream.

3 more elements

A non-transitory computer-readable medium in a distributed relay multiple-in multiple-out (DR-MIMO) wireless communication system having a transmit group and a receive group, the medium comprising instructions that when executed by a processor cause the system to:

transmit a message having a first spatial stream and a second spatial stream from a master transmit node of the transmit group toward the receive group, the first spatial stream spanning a first band and the second spatial stream spanning a second band;
capture the second spatial stream at a first relay node of the of the transmit group;
relay the second spatial stream by the first relay node of the transmit group in the first band as a relayed second spatial stream toward the receive group;
receive a second data stream comprising the first spatial stream and the relayed second spatial stream at a second relay node of the receive group in the first band;
transmit the second data stream in the second band as a relayed second data stream toward a master receive node of the receive group;
receive a first data stream comprising the first spatial stream and the second spatial stream and the relayed second data stream comprising the first spatial stream and the second spatial stream at the master receive node;
and
reconstruct the message at the master receive node based on the first data stream and the relayed second data stream.

5 more elements

Dependencies are inferred from the claim text.

System and method for distributed mimo communications

Life of this patent

System and method for distributed mimo communications

Life of this patent

Abstract

Claims20