Method and apparatus for adjusting an on duration in a discontinuous receive transmission mode
A method and an apparatus that includes establishing a link ( 106 ) between a first node ( 102 ) and a second node ( 104 ) in a wireless communication network ( 100 ). The method continues by setting a discontinuous receive (DRX) transmission mode cycle for the link wherein the DRX cycle includes an on duration ( 202 ) followed by an off cycle ( 204 ). The duration of the on duration on a downlink is adjusted ( 610 ) based on a function of the availability of a channel quality indicator (CQI) channel used on the link.
1. A method comprising:
establishing a link between a first node and a second node in a wireless communication network;
setting a discontinuous receive transmission mode cycle for the link wherein the discontinuous receive transmission mode cycle includes an on duration followed by an off cycle, and
adjusting the duration of the on duration based on the availability of a channel quality indicator, wherein adjusting the duration of the on duration comprises reducing the duration of the on duration when the channel quality indicator is not available.
2. The method of claim 1 wherein the reduced duration of the on duration is 1 frame.
3. The method of claim 1 wherein adjusting the duration of the on duration comprising increasing the duration of the on duration when the channel quality indicator is available.
4. The method of claim 1 wherein the wireless communication system is a Long Term Evolution system.
5. The method of claim 1 wherein the link includes an uplink and an downlink and the adjusting the duration of the on duration comprises adjusting the duration of the on duration for the downlink.
6. The method of claim 1 wherein adjusting the duration of the on duration improves battery life of one of the first node and the second node.
7. The method of claim 1 wherein the link is in a connected mode of the wireless communication system.
8. An apparatus comprising:
a transceiver for transmitting and receiving frames over a link in a wireless communication system, and
a processor coupled to the transceiver wherein the processor being configured to establish the link, setting a discontinuous receive transmission mode cycle for transmitting data over the link, wherein the discontinuous receive transmission mode cycle includes an on duration and an off cycle, and adjusting the duration of the on duration based on the availability of a channel quality indicator on the link, wherein the processor reduces the on duration when the channel quality indicator is not available.
9. The apparatus of claim 8 wherein the processor reduces the on duration to 1 frame.
10. The apparatus of claim 8 wherein the processor increases the on duration when the channel quality indicator is available.
11. The apparatus of claim 8 wherein the link includes an uplink and a downlink and the discontinuous receive transmission mode cycle being on the downlink from the apparatus to a node in the wireless communication system.
12. The apparatus of claim 8 wherein in the link is a part of a connected mode of the wireless communication system.
13. The apparatus of claim 8 wherein the processor reduces the on duration as a function of duration of time for which the data is previously sent on the link.
14. A method comprising:
establishing a link between a user equipment and a node in a wireless communication system;
setting a discontinuous receive transmission mode cycle for the link wherein the discontinuous receive transmission mode cycle includes an on duration followed by an off cycle, and
adjusting the duration of the on duration as a function of one of the load on the link, the user equipment receiving streaming services with small packet arrival jitter and the user equipment having a fixed power supply.
15. The method of claim 14 wherein the adjusting the duration of the on duration comprising reducing the duration of the on duration.
16. The method of claim 14 wherein the duration of the on duration being reduced to 1 frame.
17. The method of claim 14 wherein the link includes a downlink and an uplink between the user equipment and the node and the on duration being adjusted for the downlink.
18. A method comprising:
establishing a link between a first node and a second node in a wireless communication network;
setting a discontinuous receive transmission mode cycle for the link wherein the discontinuous receive transmission mode cycle includes an on duration followed by an off cycle, and
adjusting the duration of the on duration based on the availability of a channel quality indicator wherein adjusting the duration of the on duration comprising increasing the duration of the on duration when the channel quality indicator is available.
19. An apparatus comprising:
a transceiver for transmitting and receiving frames over a link in a wireless communication system, and
a processor coupled to the transceiver wherein the processor being configured to establish the link, setting a discontinuous receive transmission mode cycle for transmitting data over the link, wherein the discontinuous receive transmission mode cycle includes an on duration and an off cycle, and adjusting the duration of the on duration based on the availability of a channel quality indicator on the link wherein the processor increases the on duration when the channel quality indicator is available.