Method and apparatus for reporting performance of terminal in mobile communication system
According to one embodiment of the present specification, a method for reporting performance of a terminal in a mobile communication system includes the steps of: receiving a request for performance reporting from a base station; determining an indicator of whether a delay time related operation that the terminal supports is in correspondence with the request which corresponds to a pre-set condition; and transmitting a message including the determined indicator to the base station. According to one aspect of the present specification, the size of the performance reporting message is minimized in reporting the performance of the terminal.
1. A method by a terminal in a mobile communication system, the method comprising:
receiving, from a base station, a first message for activating a secondary cell (SCell) configured for the terminal in a subframe n;
starting or restarting a deactivation timer for the SCell based on the first message in a subframe n+8;
transmitting, to the base station, a channel state information (CSI) including a predetermined channel quality indicator (CQI) index for the SCell, in a case that uplink resource to report a CQI for the SCell is available in the subframe n+8 or subsequent subframes;
transmitting, to the base station, a sounding reference signal (SRS) for the SCell no earlier than the subframe n+8 and no later than a subframe n+24; and
transmitting, to the base station, a valid CSI for the SCell based on a measurement of the terminal no later than the subframe n+24.
2. The method of claim 1 , wherein the predetermined CQI index is for out of range, and
wherein the valid CSI including a CQI index corresponds to the measurement of the terminal with an exception of the predetermined CQI index.
3. The method of claim 1 , further comprising: monitoring a physical downlink control channel corresponding to the SCell no earlier than the subframe n+8.
4. The method of claim 1 , wherein an activation delay of the SCell is extended with a sounding reference signal carrier corresponding to the SCell.
5. The method of claim 1 , wherein the CSI including the predetermined CQI index is transmitted on a primary cell (PCell); and
wherein the SRS for the SCell is transmitted on the SCell.
6. A method by a base station in a mobile communication system, the method comprising:
transmitting, to a terminal, a first message for activating a secondary cell (SCell) configured for the terminal in a subframe n;
receiving, from the terminal, a channel state information (CSI) including a predetermined channel quality indicator (CQI) index for the SCell, in a case that uplink resource to report a CQI for the SCell is available in a subframe n+8 or subsequent subframes;
receiving, from the terminal, a sounding reference signal (SRS) for the SCell no earlier than the subframe n+8 and no later than a subframe n+24; and
receiving, from the terminal, a valid CSI for the SCell based on a measurement of the terminal no later than the subframe n+24,
wherein a deactivation timer for the SCell is started or restarted based on the first message in the subframe n+8.
7. The method of claim 6 , wherein the predetermined CQI index is for out of range, and
wherein the valid CSI including a CQI index corresponds to the measurement of the terminal with an exception of the predetermined CQI index.
8. The method of claim 6 ,
wherein a physical downlink control channel corresponding to the SCell is monitored at the terminal no earlier than the subframe n+8.
9. The method of claim 6 , wherein an activation delay of the SCell is extended with a sounding reference signal carrier corresponding to the SCell.
10. The method of claim 6 , wherein the CSI including the predetermined CQI index is received on a primary cell (PCell); and
wherein the SRS for the SCell is received on the SCell.
11. A terminal in a mobile communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a base station, a first message for activating a secondary cell (SCell) configured for the terminal in a subframe n,
start or restarting a deactivation timer for the SCell based on the first message in a subframe n+8,
transmit, to the base station, a channel state information (CSI) including a predetermined channel quality indicator (CQI) index for the SCell, in a case that uplink resource to report a CQI for the SCell is available in the subframe n+8 or subsequent subframes,
transmit, to the base station, a sounding reference signal (SRS) for the SCell no earlier than the subframe n+8 and no later than a subframe n+24, and
transmit, to the base station, a valid CSI for the SCell based on a measurement of the terminal no later than the subframe n+24.
12. The terminal of claim 11 , wherein the predetermined CQI index is for out of range, and
wherein the valid CSI including a CQI index corresponds to the measurement of the terminal with an exception of the predetermined CQI index.
13. The terminal of claim 11 , wherein the controller is further configured to:
monitor a physical downlink control channel corresponding to the SCell no earlier than the subframe n+8.
14. The terminal of claim 11 , wherein an activation delay of the SCell is extended with a sounding reference signal carrier corresponding to the SCell.
15. The terminal of claim 11 , wherein the CSI including the predetermined CQI index is transmitted on a primary cell (PCell); and
wherein the SRS for the SCell is transmitted on the SCell.
16. A base station in a mobile communication system, the base station comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
transmit, to a terminal, a first message for activating a secondary cell (SCell) configured for the terminal in a subframe n,
receive, from the terminal, a channel state information (CSI) including a predetermined channel quality indicator (CQI) index for the SCell, in a case that uplink resource to report a CQI for the SCell is available in a subframe n+8 or subsequent subframes,
receive, from the terminal, a sounding reference signal (SRS) for the SCell no earlier than the subframe n+8 and no later than a subframe n+24, and
receive, from the terminal, a valid CSI for the SCell based on a measurement of the terminal no later than the subframe n+24,
wherein a deactivation timer for the SCell is started or restarted based on the first message in the subframe n+8.
17. The base station of claim 16 , wherein the predetermined CQI index is for out of range, and
wherein the valid CSI including a CQI index corresponds to the measurement of the terminal with an exception of the predetermined CQI index.
18. The base station of claim 16 , wherein a physical downlink control channel corresponding to the SCell is monitored at the terminal no earlier than the subframe n+8.
19. The base station of claim 16 , wherein an activation delay of the SCell is extended with a sounding reference signal carrier corresponding to the SCell.
20. The base station of claim 16 , wherein the CSI including the predetermined CQI index is transmitted on a primary cell (PCell); and
wherein the SRS for the SCell is transmitted on the SCell.