Method for performing efficient BSR procedure using SPS resource
The present invention relates to a wireless communication system and a terminal providing a wireless communication service and to a method by which a base station and a terminal transmit and receive data in an evolved universal mobile telecommunications system (E-UMTS) evolved from universal mobile telecommunications system (UMTS) or a long term evolution (LTE) system, and more particularly, to a method whereby, in requesting allocation of radio resources by a user equipment (UE), which has been allocated continuous allocation radio resources, from a base station, the UE compares an allocation time point of continuous allocation radio resources and a start time point of a radio resource request procedure and effectively transmit a radio resource allocation request.
1. A method of transmitting a radio allocated resource request to a network in a wireless communication system, the method performed by a device and comprising:
determining whether or not a buffer status report (BSR) has been triggered;
if the BSR has been triggered, then checking if there is a configured resource of the network that is available to the device;
if the checking step determines that there is no configured resource of the network that is available to the device, then triggering a scheduling request (SR) to the network; and
if the checking step determines that the configured resource of the network is available to the device, then generating a BSR media access control (MAC) control element and operating a timer related to the BSR.
2. The method of claim 1 wherein the SR is performed by either via an uplink control channel or via a RACH (Random Access Channel) procedure.
3. The method of claim 2 ,
wherein the SR is signalled on the uplink control channel if the uplink control channel is configured to send the SR, and
wherein the RACH procedure is initiated if the uplink control channel is not configured to send the SR.
4. The method of claim 3 , wherein the uplink control channel is a PUCCH (Physical Uplink Control Channel).
5. The method of claim 1 , further comprising:
transmitting the BSR upon receiving a response to the triggering of the SR.
6. The method of claim 1 , further comprising:
transmitting the BSR in accordance with the BSR MAC control element.
7. The method of claim 6 , further comprising:
retransmitting the BSR it the timer expires before receiving a response to the transmitted BSR.
8. The method of claim 1 , wherein the SR includes a request for the configured resource.
9. The method of claim 1 , wherein the configured resource is a persistent resource (PR) of the network that is allocated to the device.
10. A device configured to transmit a radio allocated resource request to a network in a wireless communication system, the device comprising:
a processor configured to
determine whether or not a buffer status report (BSR) has been triggered,
if the BSR has been triggered, then check if there is a configured resource of the network that is available to the device,
if the processor determines that there is no configured resource of the network that is available to the device, then trigger a scheduling request (SR) with the network, and
if the processor determines that the configured resource of the network is available to the device, them generate a BSR media access control (MAC) control element and operate a timer related to the BSR.
11. The device of claim 10 , wherein the SR is performed by either an uplink control channel transmission or a RACH (Random Access Channel) procedure.
12. The device of claim 11 ,
wherein the SR is signalled on the uplink control channel if the uplink control channel is configured to send the SR, and
wherein the RACH procedure is initiated if the uplink control channel is not configured to send the SR.
13. The device of claim 12 , wherein the uplink control channel is a PUCCH (Physical Uplink Control Channel).
14. The device of claim 10 , wherein the processor is further configured to transmit the BSR upon receiving a response to the triggering of the SR.
15. The device of claim 10 , wherein the processor is further configured to transmit the BSR in accordance with the BSR MAC control element.
16. The device of claim 15 , wherein the processor is further configured to retransmit the BSR if the timer expires before receiving a response to the transmitted BSR.
17. The device of claim 10 , wherein the SR includes a request for the configured resource.
18. The device of claim 10 , wherein the configured resource is a persistent resource (PR) of the network that is allocated to the device.
19. The method of claim 1 , wherein the triggered BSR is different from the triggered SR.
20. The device of claim 10 , wherein the triggered BSR is different from the triggered SR.