Setting radio frequency (RF) beamformer antenna weights per data-stream in a multiple-input-multiple-output (MIMO) system
First Claim
Patent Images
1. A system comprising:
- a number M receive antennas configured to receive a number N transmitted signals associated with respective data streams;
a number N beamformers connected to the M receive antennas, configured to combine signals coming from the antennas, wherein M is greater than N, and wherein M and N are integersa baseband module coupled to the N beamformers configured to apply at least one multiple input multiple output (MIMO) receiving scheme to the combined signals; and
a control module configured to;
assign each of K receive antennas in each beamformer with a phase/gain that maximizes a received power of at least one of the data streams;
wherein K is an integer;
compare overall performance of mapping configuration which map between the beamformers and the data streams; and
select the mapping configuration which results in higher signal to interference plus noise (SINR) measured at the baseband module, wherein the received power is computed via pre-coding weight and channel estimation through each of the K receive antennas.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and a closed form method of optimizing a set of receive beamformers'"'"' weights, each feeding one of N multi-layer MIMO receiving system wherein the beamformers have a pool of M receive antennas wherein M is greater than N. Each beamformer is tuned to optimize one data stream, where selection of antennas per beamformer may be done out of a pool of antennas, and mapping of a given beamformer to a data stream is optimized per certain performance metrics.
-
Citations
12 Claims
-
1. A system comprising:
-
a number M receive antennas configured to receive a number N transmitted signals associated with respective data streams; a number N beamformers connected to the M receive antennas, configured to combine signals coming from the antennas, wherein M is greater than N, and wherein M and N are integers a baseband module coupled to the N beamformers configured to apply at least one multiple input multiple output (MIMO) receiving scheme to the combined signals; and a control module configured to;
assign each of K receive antennas in each beamformer with a phase/gain that maximizes a received power of at least one of the data streams;
wherein K is an integer;
compare overall performance of mapping configuration which map between the beamformers and the data streams; and
select the mapping configuration which results in higher signal to interference plus noise (SINR) measured at the baseband module, wherein the received power is computed via pre-coding weight and channel estimation through each of the K receive antennas. - View Dependent Claims (2, 3, 4)
-
-
5. A method comprising:
-
receiving a number N transmitted signals associated with respective data streams, via M receive antennas connected to a number N beamformers, wherein M is greater than N, and wherein M and N are integers assigning each of K receive antennas in each beamformer with a phase/gain that maximizes a received power of at least one of the data streams, wherein K is an integer;
wherein the received power is computed via a known pre-coding weight, and channel estimation through each of the K receiving antennas;comparing overall performance of mapping configuration which map between the beamformers and the data streams; and selecting the mapping configuration which results in higher signal to interference plus noise (SINR) measured at the baseband module. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
Specification