Transmitting high rate data within a MIMO WLAN
View Patent ↗A method for transmitting high rate data within a multiple input multiple output (MIMO) wireless local area network (WLAN) begins by determining a data transmission rate. The method continues by, when the data transmission rate is between a first data rate and a second data rate, enabling two transmission paths. The method continues by, for each of the two transmission paths, determining at least one of: level of constellation, number of data subcarriers, rate code, and cyclic prefix duration.
1. A method for supporting high data rate WLAN communications comprising:
determining a bandwidth of operation;
determining a required data throughput rate;
selecting a number of antennas for use in a Multiple Input Multiple Output (MIMO) baseband signal format;
selecting a constellation; and
operating a MIMO WLAN transceiver according to the bandwidth of operation, the number of antennas, and the constellation to meet the required data throughput rate.
2. The method of claim 1 :
further comprising determining a coding rate of operation; and
wherein the MIMO WLAN transceiver further operates according to the coding rate of operation.
3. The method of claim 1 , wherein the MIMO WLAN transceiver supports an Orthogonal Frequency Division Multiplexed (OFDM) baseband signal format.
4. The method of claim 3 , wherein the OFDM baseband signal format includes 50 subcarriers for carrying data within the bandwidth of operation per antenna.
5. The method of claim 3 , wherein the OFDM baseband signal format includes 52 subcarriers within the bandwidth of operation per antenna.
6. The method of claim 1 :
further comprising determining a reduced cyclic prefix format; and
wherein the MIMO WLAN transceiver further operates according to the reduced cyclic prefix format.
7. A transmitter comprises:
baseband processing module; and
a plurality of radio frequency (RF) transmitters, wherein the processing module functions to:
determine a bandwidth of operation;
determine a required data throughput rate;
select a number of the plurality of RF transmitters for use in a Multiple Input Multiple Output (MIMO) baseband signal format to produce selected RF transmitters;
select a constellation; and
operate the selected RF transmitters according to the bandwidth of operation, and the constellation to meet the required data throughput rate.
8. The transmitter of claim 7 , wherein the baseband processing module further functions to:
determine a coding rate of operation; and
wherein the select RF transmitters further operates according to the coding rate of operation.
9. The transmitter of claim 7 , wherein each of the selected RF transmitters supports an Orthogonal Frequency Division Multiplexed (OFDM) baseband signal format.
10. The transmitter of claim 9 , wherein the OFDM baseband signal format includes 50 subcarriers for carrying data within the bandwidth of operation per each of the selected RF transmitters.
11. The transmitter of claim 9 , wherein the OFDM baseband signal format includes 52 subcarriers within the bandwidth of operation per each of the selected RF transmitters.
12. The transmitter of claim 7 , wherein the baseband processing module further functions to:
determine a reduced cyclic prefix format; and
wherein the selected RF transmitters further operate according to the reduced cyclic prefix format.