Multi channel stop and wait ARQ communication method and apparatus
AssigneeMotorola, Inc.
InventorsAmitava Ghosh, Brian Classon, Mark Cudak, Louay A. Jalloul
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Abstract
A method in a communication system (100) includes transmitting from a source user (101) a first data packet (111) over a first time frame (121) having a finite time period (131), transmitting from source user (101) a second data packet (112) over a second time frame (122) immediately subsequent to first time frame (121), detecting an acknowledgment of acceptable reception of data packet associated with either first or said second data packets (111 and 112), repeating transmission of first and second data packets (111 and 112) in a sequence of first and second time frames (121 and 122) in a time frame sequence (190) until the detection.
Claims14
In a data transmission system employing hybrid automatic retry request (HARQ), a method for transmitting data to multiple users over a single data channel, the method comprising the steps of:
- selecting a user that owns a current time slot;
- communicating ownership of the time slot to the user that owns the current time slot over a Forward Dedicated Control Channel (F-DCH);
- communicating a per user stop-and wait ARQ channel identifier to the user over the F-DCH;
- and
- transmitting data over the single data channel.
In a data transmission system employing hybrid automatic retry request (HARQ), an apparatus comprising:
- a plurality of source transmitters each performing HARQ transmissions to a plurality of destination devices over a single data channel, the plurality of source transmitters comprising:
- a first HARQ transmitter;
- a second HARQ transmitter coupled to the first HARQ transmitter;
- and
- a system scheduler that selects a user that owns a current time slot, communicates ownership of the time slot to the user over a Forward Dedicated Control Channel (F-DCH), communicates a per user stop-and wait ARQ channel identifier to the user over the F-DCH and performs HARQ transmission via the first or the second HARQ transmitter to a destination device over the single data channel.
In a data transmission system employing hybrid automatic retry request (HARQ), an apparatus comprising:
- means for selecting a user that owns a current time slot based on a status of each individual user's queue;
- means for communicating ownership of the time slot to the user that owns the current time slot over a Forward Dedicated Control Channel (F-DCH);
- means for communicating a per user stop-and wait ARQ channel identifier to the user over the F-DCH;
- means for transmitting data over a single data channel.
Dependencies are inferred from the claim text.