Wi-fi compatible dedicated protocol interval announcement

Patent metadata

Field	Value
Publication number	US-2016262184-A1
Application number	US-201615157255-A
Country	US
Kind code	A1
Filing date	May 17, 2016
Priority date	Nov 14, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

A wireless device may receive a dedicated protocol interval (DPI) announcement (DPIA) frame, and then determine, based on the DPIA frame, a scheduled time and a dedicated protocol for the DPI. The wireless device may transmit one or more dedicated clear-to-send (CTS) frames requesting legacy stations to defer from contending for medium access during the DPI. Then, the wireless device may transmit data, using the dedicated protocol, to another device during the DPI.

First claim

What is claimed is:

1 . A method for signaling a dedicated protocol interval (DPI), the method comprising:
receiving a DPI announcement (DPIA) frame; determining, based on the DPIA frame, a duration of the DPI and a dedicated protocol for the DPI; transmitting one or more dedicated clear-to-send (CTS) frames requesting legacy stations to defer from contending for medium access during the DPI; and transmitting data, using the dedicated protocol, to another device during the DPI.

2 . The method of claim 1 , wherein the DPIA frame is received using the dedicated protocol.

3 . The method of claim 1 , wherein the DPIA frame and the one or more dedicated CTS frames each contain one or more reserved receiver addresses.

4 . The method of claim 3 , wherein the one or more reserved receiver addresses include a unicast media access control (MAC) address.

5 . The method of claim 3 , wherein the one or more reserved receiver addresses indicate the dedicated protocol.

6 . The method of claim 5 , wherein the one or more reserved receiver addresses include a sequence identifier value indicating a remaining number of times to retransmit dedicated CTS frames.

7 . The method of claim 6 , wherein transmitting the one or more dedicated CTS frames further comprises:
determining that a first dedicated CTS frame includes a sequence identifier value less than a maximum value; incrementing the sequence identifier value; and transmitting a second dedicated CTS frame containing a reserved receiver address including the incremented sequence identifier value.

8 . The method of claim 6 , wherein transmitting the one or more dedicated CTS frames further comprises:
determining not to transmit a second dedicated CTS frame based on determining that a first dedicated CTS frame includes a sequence identifier value not less than a maximum value.

9 . The method of claim 1 , wherein the DPIA frame is a dedicated CTS frame.

10 . The method of claim 1 , wherein the DPIA frame indicates a time for transmission of the one or more dedicated CTS frames.

11 . The method of claim 1 , wherein the DPIA frame indicates a requested number of dedicated CTS frames, and transmitting the one or more dedicated CTS frames includes transmitting the requested number of dedicated CTS frames.

12 . A wireless device, comprising:
one or more processors; one or more transceivers; and a memory storing one or more programs comprising instructions that, when executed by the one or more processors, cause the wireless device to signal a dedicated protocol interval (DPI) by performing operations comprising:
receiving a DPI announcement (DPIA) frame;
determining, based on the DPIA frame, a duration of the DPI and a dedicated protocol for the DPI;
transmitting one or more dedicated clear-to-send (CTS) frames requesting legacy stations to defer from contending for medium access during the DPI; and
transmitting data, using the dedicated protocol, to another device during the DPI.

13 . The wireless device of claim 12 , wherein the DPIA frame is received using the dedicated protocol.

14 . The wireless device of claim 12 , wherein the DPIA frame and the one or more dedicated CTS frames contains one or more reserved receiver addresses.

15 . The wireless device of claim 14 , wherein the one or more reserved receiver addresses include a unicast media access control (MAC) address.

16 . The wireless device of claim 14 , wherein the one or more reserved receiver addresses indicate the dedicated protocol.

17 . The wireless device of claim 16 , wherein the one or more reserved receiver addresses include a sequence identifier value indicating a remaining number of times to retransmit dedicated CTS frames.

18 . The wireless device of claim 17 , wherein execution of the instructions to transmit the one or more dedicated CTS frames causes the wireless device to perform operations further comprising:
determining that a first dedicated CTS frame includes a sequence identifier value less than a maximum value; incrementing the sequence identifier value; and transmitting a second dedicated CTS frame containing a reserved receiver address including the incremented sequence identifier value.

19 . The wireless device of claim 17 , wherein execution of the instructions to transmit the one or more dedicated CTS frames causes the wireless device to perform operations further comprising:
determining not to transmit a second dedicated CTS frame based on determining that a first dedicated CTS frame includes a sequence identifier value not less than a maximum value.

20 . The wireless device of claim 12 , wherein the DPIA frame is a dedicated CTS frame.

21 . The wireless device of claim 12 , wherein the DPIA frame indicates a time for transmission of the one or more dedicated CTS frames.

22 . The wireless device of claim 12 , wherein the DPIA frame indicates a requested number of dedicated CTS frames, and transmitting the one or more dedicated CTS frames includes transmitting the requested number of dedicated CTS frames.

23 . A non-transitory computer-readable storage medium storing one or more programs containing instructions that, when executed by one or more processors of a wireless device, cause the wireless device to signal a dedicated protocol interval (DPI) by performing operations comprising:
receiving a DPI announcement (DPIA) frame; determining, based on the DPIA frame, a duration of the DPI and a dedicated protocol for the DPI; transmitting one or more dedicated clear-to-send (CTS) frames requesting legacy stations to defer from contending for medium access during the DPI; and transmitting data, using the dedicated protocol, to another device during the DPI.

24 . The non-transitory computer-readable storage medium of claim 23 , wherein the DPIA frame and the one or more dedicated CTS frames contain one or more reserved receiver addresses.

25 . The non-transitory computer-readable storage medium of claim 24 , wherein the one or more reserved receiver addresses indicate the dedicated protocol.

26 . The non-transitory computer-readable storage medium of claim 24 , wherein the one or more reserved receiver addresses include a sequence identifier value indicating a remaining number of times to retransmit dedicated CTS frames.

27 . The non-transitory computer-readable storage medium of claim 26 , wherein execution of the instructions to transmit the one or more dedicated CTS frames causes the wireless device to perform operations further comprising:
determining that a first dedicated CTS frame includes a sequence identifier value less than a maximum value; incrementing the sequence identifier value; and transmitting a second dedicated CTS frame containing a reserved receiver address including the incremented sequence identifier value.

28 . The non-transitory computer-readable storage medium of claim 26 , wherein execution of the instructions to transmit the one or more dedicated CTS frames causes the wireless device to perform operations further comprising:
determining not to transmit a second dedicated CTS frame based on determining that a first dedicated CTS frame includes a sequence identifier value not less than a maximum value.

29 . The non-transitory computer-readable storage medium of claim 23 , wherein the DPIA frame indicates a re

Assignees

• Qualcomm Inc

Inventors

• Wentink Maarten Menzo

Classifications

• H04W74/004

  in the uplink, i.e. towards network · CPC title

• H04L1/1628

  List acknowledgements, i.e. the acknowledgement message consisting of a list of identifiers, e.g. of sequence numbers (H04L1/1614 takes precedence) · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04L61/6022

  Electricity · mapped topic

• H04W74/006

  in the downlink, i.e. towards the terminal · CPC title