Beamforming using predefined spatial mapping matrices
First Claim
Patent Images
1. A method comprising:
- transmitting data packets to a receiver, the transmitting using predefined spatial mapping matrices stored in a memory and continuing until each of the predefined spatial mapping matrices is used;
receiving, from the receiver, a quality of reception for each the predefined spatial mapping matrices;
comparing the quality of reception for each of the predefined spatial mapping matrices;
selecting, based on a highest quality of reception, one of the predefined spatial mapping matrices; and
transmitting, using the selected predefined spatial mapping matrix, additional data packets to the receiver.
2 Assignments
0 Petitions
Accused Products
Abstract
In one or more aspects data packets are transmitted to a receiver using predefined spatial mapping matrices, a quality of reception is received from the receiver for each of the predefined spatial mapping matrices, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on a highest quality of reception.
42 Citations
20 Claims
-
1. A method comprising:
-
transmitting data packets to a receiver, the transmitting using predefined spatial mapping matrices stored in a memory and continuing until each of the predefined spatial mapping matrices is used; receiving, from the receiver, a quality of reception for each the predefined spatial mapping matrices; comparing the quality of reception for each of the predefined spatial mapping matrices; selecting, based on a highest quality of reception, one of the predefined spatial mapping matrices; and transmitting, using the selected predefined spatial mapping matrix, additional data packets to the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method comprising:
-
receiving data packets at a receiver, the data packets transmitted using predefined spatial mapping matrices, the receiving performed without channel training; determining a quality of reception for each of the predefined spatial mapping matrices used to transmit the data packets; and providing feedback to a transmitter, the feedback indicating a predefined spatial mapping matrix with a highest quality of reception. - View Dependent Claims (9, 10, 11, 12)
-
-
13. An apparatus comprising:
-
one or more antennas configured for directional transmissions; memory configured to maintain a codebook having predefined spatial mapping matrices; and a transmission controller configured to; directionally transmit, via the one or more antennas, data packets to a receiver, the transmitting using the predefined spatial mapping matrices and performed without a sounding procedure; select, from the predefined spatial mapping matrices used, a predefined spatial mapping matrix with a highest reception quality metric; and transmit, using the selected predefined spatial mapping matrix, additional data packets to the receiver. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification