Method and apparatus of system scheduler

Abstract

Briefly, according to embodiments of the invention, there is provided a wireless communication system and a method to schedule a wireless system resource. The wireless communication resource is being used by both first and second wireless communication devices. The first and second communication devices are able to transmit space time block codes according to a predetermined diversity scheme on substantially the same Time-Frequency resources.

1 . A wireless communication system comprising:
 first and second mobile stations to transmit space time block codes according to a predetermined diversity scheme on substantially the same Time-Frequency resources; and   a base station having a scheduler to schedule the transmission of substantially the same Time-Frequency resources by both first and second mobile stations.   
   
   
       2 . The wireless communication system of  claim 1 , wherein the space time block codes comprises Alamouti space time block codes. 
   
   
       3 . The wireless communication system of  claim 1 , wherein the base station comprises at least two antennas. 
   
   
       4 . The wireless communication system of  claim 1 , wherein at least one of the first and second mobile stations includes at least two antennas and the transmission of the space time codes is done by using the at least two antennas. 
   
   
       5 . The wireless communication system of  claim 4 , wherein the transmission of the space time codes using the at least two antennas is done at approximately the same time. 
   
   
       6 . The wireless communication system of  claim 4 , wherein the transmission of the space time codes using the at least two antennas is done at a first frequency at a first antenna and a second frequency at a second antenna. 
   
   
       7 . The wireless communication system of  claim 1 , wherein at least one of the first and second mobile stations includes an antenna and the transmission of the space time codes is done using the antenna. 
   
   
       8 . The wireless communication system of  claim 7 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol at a first frequency and a second symbol at a second frequency. 
   
   
       9 . The wireless communication system of  claim 8 , wherein the first and second frequency are orthogonal frequencies. 
   
   
       10 . The wireless communication system of  claim 8 , wherein the first and second mobile stations are able to transmit the time space code by using a orthogonal frequency-division multiplexing transmission scheme. 
   
   
       11 . The wireless communication system of  claim 7 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol on a first sub-carrier frequency and a second symbol at a second sub-carrier frequency. 
   
   
       12 . The wireless communication system of  claim 11 , wherein the first and second mobile stations are able to transmit the time space codes by using a single carrier frequency division multiple access transmission scheme. 
   
   
       13 . A method comprising:
 scheduling Time-Frequency resources of wireless communication system to be used by both first and second wireless communication devices which able to transmit space time block codes according to a predetermined diversity scheme on substantially the same Time-Frequency resources.   
   
   
       14 . The method of  claim 13 , comprising:
 transmitting the space time block codes approximately at the same time by using at least two antennas of the first and second wireless communication devices.   
   
   
       15 . The method of  claim 14 , wherein the transmitting comprises:
 transmitting the space time block codes at a first frequency at a first antenna; and   transmitting the space time block codes at a second frequency at a second antenna.   
   
   
       16 . The method of  claim 13 , comprising:
 transmitting the space time block codes by using a single antenna.   
   
   
       17 . The method of  claim 16 , wherein transmitting further comprises:
 transmitting a first symbol at a first frequency; and   transmitting a second symbol at a second frequency.   
   
   
       18 . The method of  claim 16 , wherein transmitting the time space block codes by using
 a single carrier frequency division multiple access transmission schemes and the method further comprises:
 transmitting a first symbol on a first carrier frequency; and 
 transmitting a second symbol at a second carrier frequency. 
   
   
   
       19 . A mobile station comprising:
 a transmitter to transmit space time block codes according to a predetermined diversity scheme on substantially the same Time-Frequency resources which are used by another mobile station.   
   
   
       20 . The mobile station of  claim 19 , wherein the space time block codes comprises Alamouti space time block codes. 
   
   
       21 . The mobile station of  claim 19 , comprising at least two antennas. 
   
   
       22 . The mobile station of  claim 21 , wherein the transmission of the space time codes is done by using the at least two antennas at approximately the same time. 
   
   
       23 . The mobile station of  claim 21 , wherein the transmission of the space time codes using the at least two antennas is done at a first frequency at a first antenna and a second frequency at a second antenna. 
   
   
       24 . The mobile station of  claim 19 , comprising an antenna and the transmission of the space time codes is done using the antenna. 
   
   
       25 . The mobile station of  claim 24 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol at a first frequency and a second symbol at a second frequency. 
   
   
       26 . The mobile station of  claim 24 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol on a first sub-carrier frequency and a second symbol at a second sub-carrier frequency. 
   
   
       27 . The mobile station of  claim 19 , wherein the transmitter is able to transmit the time space code by using a orthogonal frequency-division multiplexing transmission scheme. 
   
   
       28 . A mobile station comprising:
 a transmitter to transmit space time block codes according to a predetermined diversity scheme on substantially the same Time-Frequency resources which are used by another mobile station; and   one or more dipole antennas to transmit the space time block codes.   
   
   
       29 . The mobile station of  claim 28 , wherein the space time block codes comprises Alamouti space time block codes. 
   
   
       30 . The mobile station of  claim 28 , wherein the transmission of the space time codes is done by using an at least two antennas at approximately the same time. 
   
   
       31 . The mobile station of  claim 30 , wherein the transmission of the space time codes using the at least two antennas is done at a first frequency at a first antenna and a second frequency at a second antenna 
   
   
       32 . The mobile station of  claim 28 , comprising an antenna and the transmission of the space time codes is done using at least one antenna. 
   
   
       33 . The mobile station of  claim 32 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol at a first frequency and a second symbol at a second frequency. 
   
   
       34 . The mobile station of  claim 32 , wherein the transmission of the space time codes using the antenna is done by transmitting a first symbol on a first sub-carrier frequency and a second symbol at a second sub-carrier frequency. 
   
   
       35 . The mobile station of  claim 28 , wherein the transmitter is able to transmit the time space code by using a orthogonal frequency-division multiplexing transmission scheme.