1. In a wireless communication system including an access point (AP) and a plurality of wireless transmitreceive units (WTRUs) associated with the AP, a method of alleviating congestion comprising:
(a) determining whether congestion exists on a wireless medium used by the AP and the WTRUs;
(b) if congestion is determined to exist on the wireless medium, determining whether there are any low priority traffic streams established between the AP and at least one of the WTRUs; and
(c) if there are no low priority traffic streams established between the AP and at least one of the WTRUs, disassociating selected ones of the associated WTRUs based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
2. The method of claim 1 wherein the low priority traffic streams include a background access category traffic stream.
3. The method of claim 1 wherein the low priority traffic streams include a best effort access category traffic stream.
4. The method of claim 1 further comprising:
(d) the AP updating an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the AP.
5. The method of claim 1 wherein the wireless communication system is a wireless local area network (WLAN).
6. In a wireless communication system including an access point (AP) and a plurality of wireless transmitreceive units (WTRUs) associated with the AP, a method of alleviating congestion comprising:
(a) determining whether congestion exists on a wireless medium used by the AP and the WTRUs;
(b) decreasing a packet transmission delay associated with low priority traffic streams when congestion is determined not to exist on the wireless medium; and
(c) increasing the packet transmission delay associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
7. The method of claim 6 further comprising
(d) if there are no low priority traffic streams established between the AP and at least one of the WTRUs, disassociating selected ones of the associated WTRUs based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
8. The method of claim 6 further comprising:
(d) if the packet transmission delay reaches a maximum value, disassociating selected ones of the associated WTRUs based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
9. The method of claim 6 further comprising:
(d) if the packet transmission delay reaches a maximum value, disassociating selected ones of the associated WTRUs based on a specific traffic stream access category.
10. The method of claim 6 further comprising:
(d) the AP updating an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the AP.
11. The method of claim 6 wherein the low priority traffic streams include a background access category traffic stream.
12. The method of claim 6 wherein the low priority traffic streams include a best effort access category traffic stream.
13. The method of claim 6 wherein the wireless communication system is a wireless local area network (WLAN).
14. In a wireless communication system including an access point (AP) and a plurality of wireless transmitreceive units (WTRUs) associated with the AP, a method of alleviating congestion comprising:
(a) determining whether congestion exists on a wireless medium used by the AP and the WTRUs;
(b) if congestion is determined to exist on the wireless medium, determining whether there are any low priority traffic streams established between the AP and at least one of the WTRUs; and
(c) if there are no low priority traffic streams established between the AP and at least one of the WTRUs, disassociating selected ones of the associated WTRUs based on a specific traffic stream access category.
15. The method of claim 14 wherein the low priority traffic streams include a background access category traffic stream.
16. The method of claim 14 wherein the low priority traffic streams include a best effort access category traffic stream.
17. The method of claim 14 further comprising:
(d) the AP updating an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the AP.
18. The method of claim 14 wherein the wireless communication system is a wireless local area network (WLAN).
19. An access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), the AP comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium;
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium; and
(d) a WTRU database in communication with the processor, wherein if congestion is determined by the processor to exist on the wireless medium, the processor determines whether there are any low priority traffic streams established between the AP and at least one of the WTRUs and, if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
20. The AP of claim 19 wherein the low priority traffic streams include a background access category traffic stream.
21. The AP of claim 19 wherein the low priority traffic streams include a best effort access category traffic stream.
22. The AP of claim 19 wherein the processor updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the transmitter.
23. The AP of claim 19 wherein the AP operates in a wireless local area network (WLAN).
24. An access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), the AP comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium; and
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium, decreasing a packet transmission delay associated with low priority traffic streams when congestion is determined not to exist on the wireless medium, and increasing the packet transmission delay associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
25. The AP of claim further comprising:
(d) a WTRU database in communication with the processor, wherein if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
26. The AP of claim 25 wherein if the packet transmission delay reaches a maximum value, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
27. The AP of claim 25 wherein if the packet transmission delay reaches a maximum value, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on a specific traffic stream access category.
28. The AP of claim 24 wherein the AP updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the AP.
29. The AP of claim 24 wherein the low priority traffic streams include a background access category traffic stream.
30. The AP of claim 24 wherein the low priority traffic streams include a best effort access category traffic stream.
31. The AP of claim 24 wherein the AP operates in a wireless local area network (WLAN).
32. An access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), the AP comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium;
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium; and
(d) a WTRU database in communication with the processor, wherein if congestion is determined by the processor to exist on the wireless medium, the processor determines whether there are any low priority traffic streams established between the AP and at least one of the WTRUs and, if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on based on a specific traffic stream access category.
33. The AP of claim 32 wherein the low priority traffic streams include a background access category traffic stream.
34. The AP of claim 32 wherein the low priority traffic streams include a best effort access category traffic stream.
35. The AP of claim 32 wherein the processor updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the transmitter.
36. The AP of claim 32 wherein the AP operates in a wireless local area network (WLAN).
37. In an access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), an integrated circuit (IC) comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium;
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium; and
(d) a WTRU database in communication with the processor, wherein if congestion is determined by the processor to exist on the wireless medium, the processor determines whether there are any low priority traffic streams established between the AP and at least one of the WTRUs and, if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
38. The IC of claim 37 wherein the low priority traffic streams include a background access category traffic stream.
39. The IC of claim 37 wherein the low priority traffic streams include a best effort access category traffic stream.
40. The IC of claim 37 wherein the processor updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the transmitter.
41. The IC of claim 37 wherein the AP operates in a wireless local area network (WLAN).
42. In an access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), an integrated circuit (IC) comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium; and
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium, decreasing a packet transmission delay associated with low priority traffic streams when congestion is determined not to exist on the wireless medium, and increasing the packet transmission delay associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
43. The IC of claim further comprising:
(d) a WTRU database in communication with the processor, wherein if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
44. The IC of claim 43 wherein if the packet transmission delay reaches a maximum value, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets.
45. The IC of claim 43 wherein if the packet transmission delay reaches a maximum value, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on a specific traffic stream access category.
46. The IC of claim 42 wherein the AP updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the AP.
47. The IC of claim 42 wherein the low priority traffic streams include a background access category traffic stream.
48. The IC of claim 42 wherein the low priority traffic streams include a best effort access category traffic stream.
49. The IC of claim 42 wherein the AP operates in a wireless local area network (WLAN).
50. In an access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), an integrated circuit (IC) comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium;
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium; and
(d) a WTRU database in communication with the processor, wherein if congestion is determined by the processor to exist on the wireless medium, the processor determines whether there are any low priority traffic streams established between the AP and at least one of the WTRUs and, if there are no low priority traffic streams established between the AP and at least one of the WTRUs, the processor disassociates selected ones of the associated WTRUs listed in the WTRU database based on based on a specific traffic stream access category.
51. The IC of claim 50 wherein the low priority traffic streams include a background access category traffic stream.
52. The IC of claim 50 wherein the low priority traffic streams include a best effort access category traffic stream.
53. The IC of claim 50 wherein the processor updates an enhanced distributed channel access (EDCA) parameter set included in frames transmitted by the transmitter.
54. The IC of claim 50 wherein the AP operates in a wireless local area network (WLAN).
55. In a wireless communication system including an access point (AP) and a plurality of wireless transmitreceive units (WTRUs) associated with the AP, a method of alleviating congestion comprising:
(a) determining whether congestion exists on a wireless medium used by the AP and the WTRUs;
(b) decreasing the size of an arbitration inter-frame space (AIFS) associated with low priority traffic streams when congestion is determined not to exist on the wireless medium; and
(c) increasing the size of the AIFS associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
56. The method of claim 55 wherein the AIFS is a packet transmission delay parameter.
57. An access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality ofwireless transmitreceive units (WTRUs), the AP comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium; and
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium, decreasing the size of an arbitration inter-frame space (AIFS) associated with low priority traffic streams when congestion is determined not to exist on the wireless medium, and increasing the size of the AIFS associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
58. The AP of claim 57 wherein the AIFS is a packet transmission delay parameter.
59. In an access point (AP) for alleviating congestion in a wireless medium used by the AP to communicate with a plurality of wireless transmitreceive units (WTRUs), an integrated circuit (IC) comprising:
(a) a receiver for receiving packets transmitted by the WTRUs over the wireless medium;
(b) a transmitter for transmitting packets to the WTRUs over the wireless medium; and
(c) a processor in communication with the receiver and the transmitter for determining whether congestion exists on the wireless medium, decreasing the size of an arbitration inter-frame space (AIFS) associated with low priority traffic streams when congestion is determined not to exist on the wireless medium, and increasing the size of the AIFS associated with the low priority traffic streams when congestion is determined to exist on the wireless medium.
60. The IC of claim 59 wherein the AIFS is a packet transmission delay parameter.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-60. (canceled)
61. A wearable defibrillator system, comprising:
a support structure for wearing by a patient;
electrodes for delivering a charge to the patient while the patient is wearing the support structure;
an output device for emitting an alarming human-perceptible indication when the charge is intended to be delivered imminently; and
a motion sensor coupled to the support structure, the motion sensor configured to detect motion of the patient while the patient responds to the query, the charge delivery being canceled if the motion sensor detects a motion within a react interval that starts when the alarming human-perceptible indication is emitted.
62. The system of claim 61, in which
the output device includes a speaker.
63. The system of claim 61, in which
the output device includes a vibration mechanism.
64. The system of claim 61, in which
the output device further emits a count-down human-perceptible indication that communicates a duration of the react interval.
65. A method for a wearable defibrillator system that is worn by a patient, the wearable defibrillator system configured to work with a motion sensor that is configured to detect motion of the patient while the patient responds to an alarming human-perceptible indication, the method comprising:
emitting an alarming human-perceptible indication signifying that administering a defibrillation shock is imminent; and
canceling the administration of the defibrillation shock if a motion is detected by the motion sensor during a react interval that starts when the alarming human-perceptible indication is emitted,
else administering the defibrillation shock to the patient imminently.
66. The method of claim 65, in which
the alarming human-perceptible indication includes an emitted sound.
67. The method of claim 65, in which
the alarming human-perceptible indication includes an emitted vibration.
68. The method of claim 65, further comprising:
emitting a count-down human-perceptible indication that communicates a duration of the react interval.
69. A method for a patient, comprising:
wearing a support structure of a wearable defibrillator system that includes a motion sensor, the motion sensor configured to detect motion of the patient while the patient responds to an alarming human-perceptible indication;
perceiving an alarming indication that the wearable defibrillator system will deliver a shock imminently; and
either tapping deliberately proximately to the support structure so as to cause the motion sensor to move during a react time interval starting when the alarming indication is perceived,
or else receiving the shock imminently.
70. The method of claim 69, further comprising:
perceiving a count-down indication that communicates a duration of the react interval, and
in which the support structure is tapped during the react time interval as guided by the count-down human-perceptible indication.
71. The method of claim 69, further comprising:
wearing one or more further garments in a manner that the one or more further garments completely cover the motion sensor, while thus tapping deliberately proximately to the support structure.
72. The system of claim 61, in which
the patient wears one or more further garments in a manner that the one or more further garments completely cover the motion sensor, and the motion sensor is configured to detect motion of the patient while the one or more further garments completely cover the motion sensor.
73. The method of claim 65, in which
the patient wears one or more further garments in a manner that the one or more further garments completely cover the motion sensor, and
the administration of the defibrillation shock is canceled if the motion is detected by the motion sensor while the one or more further garments completely cover the motion sensor.