Scheduling and transmitting uplink packets within uplink sub-frames ofa wireless system

Abstract

A method and apparatus of scheduling and transmitting uplink packets within uplink sub-frames of a wireless system is disclosed. The method includes determining a size of a standard data unit, and determining if the standard data unit can be transmitted within a single sub-channel of an uplink frame by comparing the size of the standard data unit with a number of bits that can be transmitted within the uplink frame as determined by an uplink quality. If the standard data unit is too large to be transmitted within a single sub-channel of an uplink frame, then the standard data unit is divided into sub-data units. The sub-data units are transmitted over multiple uplink frames.

1 . A method of a wireless subscriber scheduling and transmitting of uplink packets within uplink sub-frames of a wireless system, comprising:
 determining a size of a standard data unit;   determining if the standard data unit can be transmitted within a single sub-channel of an uplink sub-fume by comparing the size of the standard data unit with a number of bits that can be transmitted within the single sub-channel of the uplink sub-frame; and   if the size of the standard data unit exceeds the number of bits that can be transmitted within the single sub-channel of the uplink sub-frame, then:
 determining whether the wireless subscriber is transmission power limited or processing power limited; 
 dividing the standard data unit into sub-data units; and 
 transmitting the sub-data units over multiple uplink sub-frames or over multiple sub-channels within the uplink sub-frame depending on whether the wireless subscriber is determined to be transmission power limited or processing power limited. 
   
     
     
         2 . The method of  claim 1 , wherein the sub-data units are transmitted over the multiple uplink sub-frames when the wireless subscriber is determined to be transmission power limited. 
     
     
         3 . The method of  claim 1 , wherein the sub-data units are transmitted over the multiple sub-channels of the uplink sub-frame when the wireless subscriber is determined to be processing power limited. 
     
     
         4 . The method of  claim 2 , wherein the sub-data units are transmitted over a single sub-channel within the multiple uplink sub-frames when the wireless subscriber is determined to be transmission power limited. 
     
     
         5 . The method of  claim 1 , further comprising determining how many bytes can be transmitted within each uplink sub-frame or each sub-channel depending on whether the wireless subscriber is determined to be transmission power limited or processing power limited. 
     
     
         6 . The method of  claim 5 , wherein a size of the sub-data units is dependent on how many bytes can be transmitted within each uplink sub-frame or each sub-channel, depending on whether the wireless subscriber is determined to be transmission power limited or processing power limited. 
     
     
         7 . The method of  claim 1 , further comprising:
 dividing the sub-channel of the uplink sub-frame into mini-sub-channels; and   transmit the sub-data units over the mini-sub-channels when the wireless subscriber is determined to be processing power limited.   
     
     
         8 . The method of  claim 7 , further comprising:
 reducing power back-off of a power amplifier used for transmission of the sub-data units when the sub-data units are transmitted over the mini-sub-channels within the uplink sub-frame.   
     
     
         9 . The method of  claim 1 , wherein the sub-data units are transmitted over different ones of a plurality of antennas. 
     
     
         10 . The method of  claim 1 , wherein different sub-data units are transmitted to different base stations. 
     
     
         11 . The method of  claim 1 , further comprising:
 determining whether a first sub-data unit was received by a base station; and   if it is determined that the first sub-data unit was not received by the base station, increasing a transmission power for transmission of a second sub-data unit.   
     
     
         12 . The method of  claim 1 , wherein dividing the standard data unit comprises dividing each standard data unit and separately encoding each sub-data unit. 
     
     
         13 . The method of  claim 1 , wherein dividing the standard data unit comprises encoding the standard data unit, and dividing the encoded standard data unit into sub encoded data units. 
     
     
         14 . The method of  claim 1 , wherein the sub-data units are transmitted according to a transmission schedule received from a base station. 
     
     
         15 . The method of  claim 14 , further comprising:
 receiving a non-acknowledgement signal from a base station that a first sub-data unit was not received by the base station; and   retransmitting the first sub-data unit.   
     
     
         16 . The method of  claim 15 , wherein the non-acknowledgement signal is generated based on a comparison of received information to the transmission schedule. 
     
     
         17 . The method of  claim 1 , further comprising:
 a plurality of base stations simultaneously receiving the sub-data units from the wireless subscriber;   coordinating reception of the sub-data units between the plurality of base stations; and   reconfiguring the sub-data units to form the original standard data units.