FIXED STATION RECEIVER FOR MIMO COMMUNICATION SYSTEMAND UPLINK ADAPTATION METHOD THEREOF
First Claim
1. An uplink adaptation method comprising:
- receiving a sounding reference signal (SRS) from a terminal including a plurality of transmission antennas;
calculating a complex channel matrix (H) corresponding to a channel response or a noise variance (σ
2) corresponding to a noise power from the sounding reference signal;
calculating a signal-to-interference and noise ratio (SINR) on each transmission symbol with reference to the complex channel matrix (H) or the noise variance (σ
2); and
selecting a pre-coding matrix of the terminal with reference to the signal-to-interference and noise ratio (SINR).
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are a fixed station receiver for a Multi-Input Multi-Output (MIMO) communication system and an uplink adaptation method thereof. In the uplink adaptation method, a sounding reference signal (SRS) is received from a terminal including a plurality of transmission antennas. A complex channel matrix (H) corresponding to a channel response and a noise variance (σ2) corresponding to a noise power is calculated from the sounding reference signal. A signal-to-interference and noise ratio (SINR) on each transmission symbol is calculated with reference to the complex channel matrix (H) and the noise variance (σ2). A pre-coding matrix of the terminal is selected with reference to the signal-to-interference and noise ratio (SINR).
9 Citations
13 Claims
-
1. An uplink adaptation method comprising:
-
receiving a sounding reference signal (SRS) from a terminal including a plurality of transmission antennas; calculating a complex channel matrix (H) corresponding to a channel response or a noise variance (σ
2) corresponding to a noise power from the sounding reference signal;calculating a signal-to-interference and noise ratio (SINR) on each transmission symbol with reference to the complex channel matrix (H) or the noise variance (σ
2); andselecting a pre-coding matrix of the terminal with reference to the signal-to-interference and noise ratio (SINR). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A base station receiving device of a communication system supporting Multi-Input Multi-Output (MIMO), the device comprising:
-
one or more receiving antennas receiving a sounding reference signal (SRS) from a terminal; a fast Fourier transformer processing a received signal of the receiving antenna; and a sounding reference signal processing unit calculating a signal-to-interference and noise ratio (SINR) on each transmission symbol received from a sounding reference signal delivered from the fast Fourier transformer to select a pre-coding matrix of the terminal. - View Dependent Claims (12, 13)
-
Specification