Network time reservation cancellation
View Patent ↗Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.
1. A wireless communication device comprising:
an antenna; and
a wireless interface coupled to the antenna, the wireless interface and antenna in combination configured to:
transmit a preamble field;
transmit a legacy signal field after transmission of the preamble field, wherein the legacy signal field indicates (1) a time duration or (2) a length and a rate of a backwards-compatible burst transmission, the legacy signal field for decoding and interpretation by a second wireless device as a single frame,
transmit a plurality of paired fields after transmission of the legacy signal field, at least one paired field comprising a signal field and a service and protocol data unit field with a backwards-compatible burst transmission comprising the plurality of paired fields, and
generate an interframe gap after transmission of the plurality of paired fields.
2. The wireless device of claim 1 , wherein two service and protocol data unit fields of the plurality of paired fields are encoded differently.
3. The wireless device of claim 1 , wherein the plurality of paired fields are for decoding upon receipt by a burst-capable station.
4. The wireless device of claim 1 , wherein the legacy signal field comprises a single legacy signal field.
5. The wireless device of claim 1 , wherein the legacy signal field relates to the plurality of paired fields.
6. The wireless device of claim 1 , wherein the wireless interface is configured to determine a duration of a reservation of a communication medium determined based upon interaction with a legacy station.
7. The wireless device of claim 1 , wherein the interframe gap is of zero time.
8. The wireless device of claim 1 , wherein the wireless interface is configured to cancel remaining reservation time when a reservation duration indicated in the legacy signal field is not substantially used.
9. The wireless device of claim 1 , wherein the wireless interface is configured to trim reservation duration as indicated in the legacy signal field.
10. The wireless device of claim 1 , wherein the wireless interface is configured to cancel remaining reservation time by sending a message that comprises an indication that a media access control (MAC) portion is of a NULL length or a ZERO length.
11. The wireless device of claim 1 , wherein the wireless interface is configured to cancel remaining reservation time by sending a message that comprises at least one of request-to-send (RTS) frame with a ZERO-length duration value and a clear-to-send (CTS) frame with a ZERO-length duration value.
12. The wireless device of claim 11 , wherein the RTS frame or the CTS frame comprises information indicates a reservation holder.
13. A wireless communication device comprising:
an antenna; and
a wireless interface coupled to the antenna, the wireless interface and antenna in combination configured to:
transmit a preamble field;
transmit a legacy signal field after transmission of the preamble field, wherein the legacy signal field indicates a length and a rate of a backwards-compatible burst transmission, the legacy signal field for decoding and interpretation by a second wireless device as a single frame,
transmit a plurality of paired fields after transmission of the legacy signal field, at least one paired field comprising a signal field and a service and protocol data unit field with a backwards-compatible burst transmission comprising the plurality of paired fields, and
generate an interframe gap after transmission of the plurality of paired fields.
14. The wireless device of claim 13 , wherein two service and protocol data unit fields of the plurality of paired fields are encoded differently.
15. The wireless device of claim 13 , wherein the plurality of paired fields are for decoding upon receipt by a burst-capable station.
16. The wireless device of claim 13 , wherein the legacy signal field comprises a single legacy signal field.
17. A method for operating a wireless communication device comprising:
transmitting a preamble field;
transmitting a legacy signal field after transmission of the preamble field, wherein the legacy signal field indicates a length and a rate of a backwards-compatible burst transmission, the legacy signal field for decoding and interpretation by a second wireless device as a single frame,
transmitting a plurality of paired fields after transmission of the legacy signal field, at least one paired field comprising a signal field and a service and protocol data unit field with a backwards-compatible burst transmission comprising the plurality of paired fields, and
generating an interframe gap after transmission of the plurality of paired fields.
18. The method of claim 17 , wherein two service and protocol data unit fields of the plurality of paired fields are encoded differently.
19. The method of claim 17 , wherein the plurality of paired fields are for decoding upon receipt by a burst-capable station.
20. The method of claim 17 , wherein the legacy signal field comprises a single legacy signal field.