Method of implementing packet-based resource allocation and persistent resource allocation in a wireless communication system
View Patent ↗The present invention provides a method of allocating resources in a wireless communication system. The method includes requesting persistent allocation of resources for a data spurt in response to detecting the beginning of the data spurt and performing non-persistent resource allocation for at least one packet in the data spurt. The non-persistent resource allocation is performed in response to determining that persistent resources are not available for allocation. The method also includes transmitting the packet using the allocated non-persistent resources.
1. A method of allocating resources in a wireless communication system, comprising:
requesting persistent allocation of resources for a data spurt in response to detecting the beginning of the data spurt;
performing non-persistent resource allocation for at least one packet in the data spurt in response to determining that persistent resources are not available for allocation, wherein determining that persistent resources are not available for allocation comprises determining that an elapsed time since detection of the beginning of the data spurt has exceeded a predetermined threshold value prior to the persistent allocation of the resources; and
transmitting said at least one packet using the allocated non-persistent resources.
2. A method of allocating resources in a wireless communication system, comprising:
requesting persistent allocation of resources for a data spurt in response to detecting the beginning of the data spurt;
performing non-persistent resource allocation for at least one packet in the data spurt in response to determining that persistent resources are not available for allocation, wherein determining that persistent resources are not available for allocation comprises determining that an overhead associated with persistent resource allocation is larger than an overhead associated with non-persistent resource allocation; and transmitting said at least one packet using the allocated non-persistent resources.
3. The method of claim 1 or 2 , wherein requesting the persistent allocation of resources for the data spurt comprises requesting persistent allocation of resources for the data spurt provided by at least one of a voice application, a Voice over Internet Protocol (VoIP) application, a video telephony application, a push-to-talk application, a streaming video application, a constant bit rate application, or a guaranteed bit rate application.
4. The method of claim 1 or 2 , wherein requesting persistent allocation of resources for the data spurt comprises requesting at least one of a timeslot, frequency, code sequence, tone, sub-carrier, tile, resource block, base node, or power.
5. The method of claim 1 or 2 , wherein performing non-persistent resource allocation for said at least one packet in the data spurt in response to determining that persistent resources are not available for allocation comprises:
performing persistent resource allocation for the data spurt; and
switching from persistent resource allocation to non-persistent resource allocation in response to determining that an overhead associated with persistent resource allocation is larger than an overhead associated with non-persistent resource allocation.
6. The method of claim 1 or 2 , comprising determining that resources for the data spurt can be persistently allocated.
7. The method of claim 6 , wherein determining that resources for the data spurt can be persistently allocated comprises determining that an overhead associated with persistent allocation is less than an overhead associated with non-persistent allocation.
8. The method of claim 6 , wherein determining that resources for the data spurt can be persistently allocated comprises monitoring at least one condition for completing the persistent allocation and determining that said at least one condition for completing the persistent allocation is satisfied.
9. The method of claim 8 , wherein monitoring said at least one condition for completing the persistent allocation comprises monitoring said at least one condition concurrently with performing the non-persistent resource allocation for said at least one packet and transmitting said at least one packet using the allocated non-persistent resources.
10. The method of claim 6 , comprising performing persistent allocation of resources to the data spurt and transmitting at least a portion of the data spurt using the persistently allocated resources.
11. The method of claim 10 , comprising ending non-persistent allocation of resources to packets in the data spurt.
12. The method of claim 11 , comprising performing persistent allocation of resources concurrently with non-persistent allocation of resources for a selected period of time prior to ending non-persistent allocation of resources.
13. The method of claim 12 , comprising selecting the period of time for concurrent persistent and non-persistent allocation of resources.
14. The method of claim 13 , wherein selecting the period of time for concurrent persistent and non-persistent allocation of resources comprises selecting the period of time based upon at least one of a number of packets in a queue or a target packet latency.
15. The method of claim 11 , comprising:
monitoring at least one condition for completing the persistent allocation;
determining that said at least one condition for completing the persistent allocation is not satisfied; and
resuming non-persistent allocation of resources to at least one packet in the data spurt in response to determining that said at least one condition for completing the persistent allocation is not satisfied.
16. The method of claim 1 or 2 , comprising detecting the beginning of the data spurt in response to initiation of a new data spurt, initiation of an application that provides the data spurt, or handoff of a communication session.
17. A method of allocating resources in a wireless communication system, comprising:
requesting persistent allocation of tiles for a data spurt in response to detecting the beginning of the data spurt, wherein each tile represents one of a plurality of tones transmitted for the duration of a time slot;
performing non-persistent allocation of tiles for at least one packet in the data spurt in response to determining that tiles are not available for persistent allocation, wherein determining that tiles are not available for persistent allocation comprises determining that an elapsed time since detection of the beginning of the data spurt has exceeded a predetermined threshold value prior to the persistent allocation of the tiles; and transmitting said at least one packet using the allocated non-persistent tiles.
18. A method of allocating resources in a wireless communication system, comprising:
requesting persistent allocation of tiles for a data spurt in response to detecting the beginning of the data spurt, wherein each tile represents one of a plurality of tones transmitted for the duration of a time slot;
performing non-persistent allocation of tiles for at least one packet in the data spurt in response to determining that tiles are not available for persistent allocation, wherein determining that tiles are not available for persistent allocation comprises determining that an overhead associated with persistent resource allocation is larger than an overhead associated with non- persistent resource allocation; and
transmitting said at least one packet using the allocated non-persistent tiles.