Method of controlling load sharing between in-cell and soft handoff users
View Patent ↗In the method, rate control for at least one soft handoff user is selectively performed based on a soft handoff loading metric indicative of loading from soft handoff users on the channel.
1. A method of controlling load from non-served soft handoff users on a channel, comprising:
selectively performing rate control for at least one non-served soft handoff user based on a soft handoff loading metric indicative of loading from non-served soft handoff users on the channel; and
determining the soft handoff loading metric based on loading from the non-served soft handoff users on the channel in relation to at least loading from served users on the channel.
2. The method of claim 1 , wherein the determining step determines the loading from non-served soft handoff users on the channel in relation to at least loading from the served users on the channel and non-served-soft handoff users on the channel.
3. The method of claim 2 , wherein the channel is an enhanced dedicated channel.
4. The method of claim 2 , wherein the determining step determines the soft handoff loading metric as the loading from the non-served soft handoff users divided by a sum of the loading from the non-served soft handoff users and the served users.
5. The method of claim 4 , wherein the selectively performing step compares the soft handoff loading metric to a threshold and selectively performs rate control based on results of the comparison.
6. The method of claim 5 , wherein the selectively performing step sends a rate reduction instruction to the non-served soft handoff user if the soft handoff loading metric is greater than the threshold.
7. The method of claim 6 , wherein the selectively performing step sends a rate reduction instruction to each of the non-served soft handoff users if the soft handoff loading metric is greater than the threshold.
8. The method of claim 6 , wherein the served users are prioritized, and further comprising:
controlling granted transmission rates of the prioritized users in order of lower priority prioritized users to higher priority prioritized users until an estimated use of an uplink resource by the prioritized users falls within an available amount of the uplink resource for the channel, the estimated load being based on determined transmission rates for the prioritized users.
9. The method of claim 6 , further comprising:
adjusting the threshold.
10. The method of claim 1 , further comprising:
determining the soft handoff loading metric as a loading from non-served soft handoff users on the channel divided by a total loading on the channel.
11. The method of claim 1 , wherein the selectively performing step compares the soft handoff loading metric to a threshold and selectively performs rate control based on results of the comparison.
12. The method of claim 11 , wherein the selectively performing step sends a rate reduction instruction to the non-served soft handoff user if the soft handoff loading metric is greater than the threshold.
13. The method of claim 12 , further comprising:
adjusting the threshold.
14. The method of claim 12 , wherein the selectively performing step sends a rate reduction instruction to each of the non-served soft handoff users if the soft handoff loading metric is greater than the threshold.
15. The method of claim 12 , wherein the served users are prioritized, and further comprising:
controlling granted transmission rates of the prioritized users in order of lower priority prioritized users to higher priority prioritized users until an estimated use of an uplink resource by the prioritized users falls within an available amount of the uplink resource for the channel, the estimated load being based on determined transmission rates for the prioritized users.
16. A method of controlling load from non-served soft handoff users on a channel, comprising:
determining an estimated use of an uplink resource by prioritized users if transmission rates for the prioritized users are granted;
granting the transmission rates if the estimated use of the uplink resource is less than or equal to an available amount of the uplink resource;
selectively performing rate control for at least one non-served soft handoff user based on a soft handoff loading metric indicative of loading from non-served soft handoff users on the channel if the estimated use of the uplink resource is greater than the available amount of the uplink resource; and
determining the soft handoff loading metric based on loading from the non-served soft handoff users in relation to at least loading from the prioritized users.
17. The method of claim 16 , wherein the selectively performing step compares the soft handoff loading metric to a threshold and selectively performs rate control based on results of the comparison.
18. The method of claim 17 , wherein the selectively performing step sends a rate reduction instruction to the non-served soft handoff user if the soft handoff loading metric is greater than the threshold.
19. The method of claim 18 , further comprising:
adjusting the threshold.
20. The method of claim 18 , wherein the selectively performing step sends a rate reduction instruction to each of the non-served soft handoff users if the soft handoff loading metric is greater than the threshold.
21. The method of claim 18 , wherein if the estimated use of the uplink resource is greater than the available amount of the uplink resource, further comprising:
controlling granted transmission rates of the prioritized users in order of lower priority prioritized users to higher priority prioritized users until an estimated use of an uplink resource by the prioritized users falls within an available amount of the uplink resource for the channel, the estimated load being based on determined transmission rates for the prioritized users.
22. The method of claim 16 , wherein the determining determines the the soft handoff loading metric as the loading from the non-served soft handoff users divided by a sum of the loading from the non-served soft handoff users and loading from the prioritized users.