Inserted PPDU
A system and method for managing latency in a wireless network. In some embodiments, the method includes: receiving, by a non-Access Point Station (non-AP STA), a first inserted packet; and sending, by the non-AP STA, an Acknowledgement (ACK) for the first inserted packet, the first inserted packet beginning after the beginning of a first originally scheduled Aggregated Physical layer Protocol Data Unit (A-PPDU) and being substituted for a portion of the data of the first originally scheduled A-PPDU.
1. A method, comprising:
receiving, by a non-Access Point Station (non-AP STA), a first inserted packet; and
sending, by the non-AP STA, an Acknowledgement (ACK) for the first inserted packet,
the first inserted packet beginning during transmission of a first originally scheduled Aggregated Physical layer Protocol Data Unit (A-PPDU) and being substituted for a portion of the data of the first originally scheduled A-PPDU.
2. The method of claim 1 , further comprising detecting a start indication of the first inserted packet.
3. The method of claim 2 , wherein the start indication includes a Long Training Field (LTF).
4. The method of claim 2 , wherein the start indication includes a Signal Field (SIG).
5. The method of claim 1 , wherein the A-PPDU comprises a High Efficiency Physical layer Protocol Data Unit (HE PPDU), the HE PPDU having a frequency extent of 160 MHz.
6. The method of claim 1 , wherein the first inserted packet occupies a bandwidth of at most 80 MHz.
7. The method of claim 1 , further comprising receiving, in a preamble of the first originally scheduled A-PPDU, an indication of a candidate start time for the first inserted packet.
8. The method of claim 7 , wherein the candidate start time is indicated as a number of symbols, the number of symbols specifying the time interval between the start of the first originally scheduled A-PPDU and the candidate start time.
9. The method of claim 1 , further comprising:
receiving, by the non-AP STA, a first portion of a second A-PPDU; and
detecting, by the non-AP STA, the start of a second inserted packet.
10. The method of claim 9 , further comprising turning off a radio of the non-AP STA after the start of the second inserted packet.
11. The method of claim 1 , wherein the portion of the data of the first originally scheduled A-PPDU is a portion of the data of a Physical layer Protocol Data Unit (PPDU) of the first originally scheduled A-PPDU.
12. The method of claim 1 , wherein the portion of the data of the first originally scheduled A-PPDU is a portion of the data of a Resource Unit (RU).
13. The method of claim 1 , wherein the portion of the data of the first originally scheduled A-PPDU is a portion of the data of each of two Resource Units (RUS).
14. A non-Access Point Station (non-AP STA) comprising:
a radio; and
a processing circuit,
the processing circuit being configured to receive a first inserted packet,
the first inserted packet beginning during transmission of a first originally scheduled Aggregated Physical layer Protocol Data Unit (A-PPDU) and being substituted for a portion of the data of the first originally scheduled A-PPDU.
15. The non-AP STA of claim 14 , wherein the processing circuit is further configured to detect a start indication of the first inserted packet.
16. The non-AP STA of claim 15 , wherein the start indication includes a Long Training Field (LTF).
17. The non-AP STA of claim 15 , wherein the start indication includes a Signal Field (SIG).
18. The non-AP STA of claim 14 , wherein the processing circuit is further configured to send an Acknowledgement (ACK) for the first inserted packet.
19. The non-AP STA of claim 14 , wherein the A-PPDU comprises a High Efficiency Physical layer Protocol Data Unit (HE PPDU), the HE PPDU having a frequency extent of 160 MHz.
20. A non-Access Point Station (non-AP STA) comprising:
a radio; and
means for processing,
the means for processing being configured to receive a first inserted packet,
the first inserted packet beginning during transmission of a first originally scheduled Aggregated Physical layer Protocol Data Unit (A-PPDU) and being substituted for a portion of the data of the first originally scheduled A-PPDU.