Techniques and apparatuses for tune-away management
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a predicted tune-away for a set of voice frames. In some aspects, the user equipment may alter a vocoder rate from a first vocoder rate to a second vocoder rate that is less than the first vocoder rate based at least in part on determining the predicted tune-away for the set of voice frames. In some aspects, the user equipment may drop, in connection with an occurrence of the predicted tune-away, a subset of packets for a time period corresponding to the predicted tune-away. Numerous other aspects are provided.
1. A method of wireless communication, comprising:
determining, by a user equipment, a predicted tune-away for a set of voice frames;
altering, by the user equipment, a vocoder rate from a first vocoder rate to a second vocoder rate that is less than the first vocoder rate based at least in part on determining the predicted tune-away for the set of voice frames; and
receiving or transmitting, by the user equipment, redundant data for packets occurring during a time period corresponding to the predicted tune-away.
2. The method of claim 1 , wherein the second vocoder rate is determined based at least in part on an uplink bandwidth allocation.
3. The method of claim 1 , wherein the second vocoder rate is determined based at least in part on a bandwidth grant.
4. The method of claim 1 , wherein the second vocoder rate is determined based at least in part on an overhead characteristic.
5. The method of claim 1 , wherein the second vocoder rate is determined based at least in part on the first vocoder rate.
6. The method of claim 1 , wherein the predicted tune-away is determined based at least in part on a paging cycle and a tune-away start time.
7. The method of claim 1 , wherein a tune-away duration for the predicted tune-away is determined based at least in part on stored information identifying at least one previous tune-away duration.
8. The method of claim 1 , wherein the predicted tune-away is determined based at least in part on a cell change.
9. A user equipment, comprising:
a memory; and
one or more processors operatively coupled to the memory, the one or more processors configured to:
determine a predicted tune-away for a set of voice frames; and
alter a vocoder rate from a first vocoder rate to a second vocoder rate that is less than the first vocoder rate based at least in part on determining the predicted tune-away for the set of voice frames,
wherein activation of a channel aware mode is signaled using in-band signaling or a real-time transport protocol control protocol message.
10. The user equipment of claim 9 , wherein the second vocoder rate is determined based at least in part on an uplink bandwidth allocation.
11. The user equipment of claim 9 , wherein the second vocoder rate is determined based at least in part on a bandwidth grant.
12. The user equipment of claim 9 , wherein the second vocoder rate is determined based at least in part on an overhead characteristic.
13. The user equipment of claim 9 , wherein the second vocoder rate is determined based at least in part on the first vocoder rate.
14. The user equipment of claim 9 , wherein the predicted tune-away is determined based at least in part on a paging cycle and a tune-away start time.
15. The user equipment of claim 9 , wherein a tune-away duration for the predicted tune-away is determined based at least in part on stored information identifying at least one previous tune-away duration.
16. A method of wireless communication, comprising:
determining, by a user equipment, a predicted tune-away for a set of voice frames; and
dropping, by the user equipment and in connection with an occurrence of the predicted tune-away, a subset of packets for a time period corresponding to the predicted tune-away,
wherein at least one packet, occurring during the time period corresponding to the predicted tune-away, is transmitted after the time period corresponding to the predicted tune-away.
17. The method of claim 16 , wherein a quantity of packets to be dropped as the subset of packets is determined based at least in part on a transmission queue parameter.
18. The method of claim 16 , further comprising:
transmitting, using an enhanced voice services (EVS) codec, redundant data for packets occurring during the time period corresponding to the predicted tune-away.
19. The method of claim 18 , wherein the user equipment is operating in a channel aware mode.
20. The method of claim 18 , wherein a channel aware mode is activated for the time period corresponding to the predicted tune-away and deactivated after the time period corresponding to the predicted tune-away.
21. The method of claim 16 , further comprising:
receiving redundant data for packets occurring during the time period corresponding to the predicted tune-away.
22. The method of claim 16 , wherein activation of a channel aware mode is signaled using in-band signaling or a real-time transport protocol control protocol message.
23. A user equipment, comprising:
a memory; and
one or more processors operatively coupled to the memory, the one or more processors configured to:
determine a predicted tune-away for a set of voice frames; and
drop, in connection with an occurrence of the predicted tune-away, a subset of packets for a time period corresponding to the predicted tune-away,
wherein a quantity of packets to be dropped as the subset of packets is determined based at least in part on a transmission queue parameter.
24. The user equipment of claim 23 , wherein at least one packet, occurring during the time period corresponding to the predicted tune-away, is transmitted after the time period corresponding to the predicted tune-away.
25. The user equipment of claim 23 , wherein the one or more processors are configured to:
transmit, using an enhanced voice services (EVS) codec, redundant data for packets occurring during the time period corresponding to the predicted tune-away.
26. The user equipment of claim 25 , wherein the user equipment is operating in a channel aware mode.
27. The user equipment of claim 25 , wherein a channel aware mode is activated for the time period corresponding to the predicted tune-away and deactivated after the time period corresponding to the predicted tune-away.
28. The user equipment of claim 23 , wherein the one or more processors are configured to:
receive redundant data for packets occurring during the time period corresponding to the predicted tune-away.
29. The method of claim 1 , further comprising:
signaling a channel aware mode based at least in part on determining the predicted tune-away for the set of voice frames.
30. The user equipment of claim 9 , wherein the one or more processors are configured to:
signal a channel aware mode based at least in part on determining the predicted tune-away for the set of voice frames.