Methods, systems and devices for providing differentiated quality of service for wireless communication devices
A method can include, in an access point (AP) configured to control data transfers for associated stations (STAs) in time intervals, storing a unique identifier and quality-of-service (QoS) requirement for each STA of a first set in a nonvolatile memory of the AP. In response to a STA associating with the AP, if the associating STA is in the first set, allocating time for the STA in the time intervals to meet the QoS requirement of the STA without receiving transmitted QoS data from the STA, and if the associating STA is not in the first set, establishing a QoS for the STA having a lower priority than any associated STAs of the first set. Corresponding systems and devices are also disclosed.
1. A method, comprising:
by operation of a station (STA) having a predetermined quality-of-service (QoS) requirement,
storing a unique identifier for the STA in a nonvolatile memory of the STA,
associating with an access point (AP) with transmissions that include the unique identifier, and
after associating with the AP, receiving and transmitting data in at least one period that provides a QoS corresponding to the QoS requirement without having transmitted a corresponding QoS value to the AP during or after associating with the AP.
2. The method of claim 1 , wherein the unique identifier for the STA comprises a media access control (MAC) address.
3. The method of claim 1 , wherein the QoS requirement for the STA comprises a bandwidth requirement.
4. The method of claim 1 , wherein the STA is compatible with at least one IEEE 802.11 wireless standard.
5. The method of claim 1 , further including:
by operation of the STA,
storing a QoS value corresponding to the QoS corresponding to the QoS requirement,
in an operation prior to the associating with the AP, requesting to be added to a list of STAs of the AP that have ensured QoS, the requesting including the unique identifier and a QoS value of the STA.
6. The method of claim 1 , wherein:
the at least one period includes
a transmit opportunity (TXOP) for data from the AP to the STA, and
a TXOP for data from the STA to the AP,
wherein the TXOPs having durations sufficient to meet the QoS requirement.
7. The method of claim 1 , wherein:
the at least one period is part of contention free period within a larger contention period; wherein
the contention free period is at least one time period in which only assigned STAs can access to a transmission medium, and
the contention period is at least one time period in which any STA can negotiate with the AP for access to the medium.
8. The method of claim 1 , further including:
after associating with the AP, but before receiving and transmitting data in the at least one period,
receiving data from the AP identifying assignment of the at least one period to the STA; and
in response to not receiving data from the AP identifying assignment of the at least one period to the STA, negotiating with the AP to establish a negotiated QoS.
9. A device, comprising:
memory circuits comprising nonvolatile memory circuits configured to store a unique identifier and a quality-of-service (QoS) requirement; and
wireless communication circuits configured to
execute an association operation with an access point (AP) that provides the unique identifier and not the QoS requirement, and
after executing the association operation with the AP, receiving and transmitting data in at least one period that provide the a QoS corresponding to the QoS requirement without having transmitted a corresponding QoS value to the AP during or after associating with the AP; wherein
the device is a station (STA) compatible with at least one IEEE 802.11 wireless standard.
10. The device of claim 9 , wherein the unique identifier comprises a media access control (MAC) address.
11. The device of claim 9 , wherein the QoS requirement for the STA comprises a bandwidth requirement.
12. The device of claim 9 , wherein:
the memory circuits are configured to store different data for transmission; and
the wireless communication circuits are configured to prioritize at least one type of data over the other types of data for transmission during the at least one period.
13. The device of claim 12 , wherein the at least one type of data is selected from the group of: audio and video data.
14. The device of claim 9 , wherein:
the at least one period is selected target wake times from a plurality of periodic target wake times; and
the device is configured to enter a sleep mode between the selected target wake times.
15. A system, comprising:
a plurality of first type stations (STAs) configured for wireless communication, each first type STA including
memory circuits configured to store a unique identifier for the first type STA,
a different first type quality-of-service (QoS) requirement for data transfer operations, and
wireless control circuits configured to
associate with an access point (AP) with the unique identifier and without conveying the first type QoS requirement, and
after associating with the AP, receive and transmit data in at least one period that provides the first type QoS requirement for the STA.
16. The system of claim 15 , further including:
at least one second type STA configured for wireless communication, the at least one second type STA including
a second-type QoS, and
wireless control circuits configured to associate with the AP, including negotiating an approved QoS using the second-type predetermined QoS.
17. The system of claim 15 , wherein the first type STAs are compatible with at least one IEEE 802.11 wireless standard.
18. The system of claim 15 , wherein the first-type STAs comprise built-in STAs that are built into a larger system.
19. The system of claim 18 , wherein the larger system comprises an automobile system.
20. The system of claim 15 , wherein:
the at least one period includes, for each first-type STA,
a transmit opportunity (TXOP) for data from the AP to the first-type STA, and
a TXOP for data from the first-type STA to the AP,
wherein
the TXOPs having durations sufficient to meet the first type QoS of the STA, and
the TXOPs for each first type STA occupy different periods of time.