System and method for distributed antenna wireless communications
First Claim
1. A multi-user multiple antenna system (MU-MAS) comprising of:
- one or a plurality of centralized processing units;
a plurality of distributed transceiver stations communicatively coupled to the one or a plurality of centralized processing units via a network;
a plurality of client devices;
wherein the centralized processing units estimate the uplink channel state information (CSI) between the distributed transceiver stations and the client devices, and the CSI between the distributed transceiver stations, and exploit channel reciprocity to derive the downlink CSI.
0 Assignments
0 Petitions
Accused Products
Abstract
A system and method are described for distributed antenna wireless communications. For example, a method implemented within a wireless transmission system comprised of a plurality of wireless client devices and a plurality of distributed antennas is described comprising: computing channel state information (CSI) for wireless communication channels between the plurality of base distributed antennas and the wireless client devices; computing precoding weights from the channel state information; precoding data using the precoding weights prior to wireless transmission from the plurality of distributed antennas to the wireless client devices; and wirelessly transmitting the precoded data from the distributed antennas to each of the wireless client devices, wherein the precoding causes radio frequency interference between the plurality of base stations but simultaneously generating a plurality of non-interfering radio frequency user channels between the plurality of distributed antennas and the plurality of wireless client devices.
640 Citations
21 Claims
-
1. A multi-user multiple antenna system (MU-MAS) comprising of:
-
one or a plurality of centralized processing units; a plurality of distributed transceiver stations communicatively coupled to the one or a plurality of centralized processing units via a network; a plurality of client devices; wherein the centralized processing units estimate the uplink channel state information (CSI) between the distributed transceiver stations and the client devices, and the CSI between the distributed transceiver stations, and exploit channel reciprocity to derive the downlink CSI. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A multi-user multiple antenna system (MU-MAS) comprising of:
-
one or a plurality of centralized processing units; a plurality of distributed transceiver stations communicatively coupled to the one or a plurality of centralized processing units via a network; a plurality of client devices communicatively coupled to the plurality of distributed transceiver stations via a plurality of wireless links; wherein the plurality of distributed transceiver stations are equipped with a plurality of clocks synchronized in time and frequency to enable transmitting and receiving a plurality of concurrent non-interfering data streams via spatial processing over the wireless links. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification