System and method for protecting time slots
AssigneeFuturewei Technologies, Inc.
InventorYunsong Yang
Life of this patent
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Abstract
A method for prioritizing first group devices over second group devices in accessing a channel during a time slot scheduled for communications by the first group devices is provided. The method includes generating a frame comprising a Duration field containing a value set to a sum of a duration of a frame exchange including a transmission of the frame and a duration of a time extension, and transmitting the frame in the time slot.
Claims20
A method for accessing a channel during a time slot, the method comprising:
- receiving, by a device, a frame during the time slot, the frame comprising a Duration field containing a value set to a sum of a duration value of a frame exchange including a transmission of the frame and a duration value of a time extension;
- setting, by the device, a network allocation vector (NAV) of the device to the value of the Duration field of the received frame;
- and
- determining, by the device, that the value of the Duration field has been extended by the duration value of the time extension, and based thereon,
- subtracting, by the device, the duration value of the time extension from the NAV, and
- contending, by the device, for access to the channel when a channel access control determines that the channel is idle.
A device adapted to access a channel during a time slot, the device comprising:
- a memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to:
- receive a frame during the time slot, the frame comprising a Duration field containing a value set to a sum of a duration value of a frame exchange including a transmission of the frame and a duration value of a time extension,
- set a network allocation vector (NAV) of the device to the value of the Duration field of the received frame, and
- determine that the value of the Duration field has been extended by the duration value of the time extension, and based thereon,
- subtract the duration value of the time extension from the NAV, and
- contend for access to the channel when a channel access control determines that the channel is idle.
A non-transitory computer-readable medium storing programming for execution by one or more processors to:
- receive a frame during a time slot, the frame comprising a Duration field containing a value set to a sum of a duration value of a frame exchange including a transmission of the frame and a duration value of a time extension,
- set a network allocation vector (NAV) of a device to the value of the Duration field of the received frame, and
- determine that the value of the Duration field has been extended by the duration value of the time extension, and based thereon,
- subtract the duration value of the time extension from the NAV, and
- contend for access to a channel when a channel access control determines that the channel is idle.
Dependencies are inferred from the claim text.