Method and apparatus for uplink power control in communication system
Disclosed is a method for uplink power control in a communication system that includes determining a power control offset for controlling power for traffic to be transmitted by a subscriber station, according to whether a Hybrid Automatic Repeat reQuest (HARQ) is applied to the traffic, and transmitting the power control offset to the subscriber station.
1. A method for controlling a transmission power at a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a Base Station (BS), a message comprising a power offset for a hybrid automatic repeat request (HARQ) burst relative to a non-HARQ burst;
transmitting, to the BS, the non-HARQ burst, and
transmitting, to the BS, the HARQ burst by controlling a transmission power of the HARQ burst using the power offset,
wherein controlling the transmission power of the HARQ burst includes adjusting a carrier to noise ratio value for the HARQ burst referencing to the non-HARQ burst.
2. The method of claim 1 , wherein controlling the transmission power of the HARQ burst includes adding the power offset to a carrier to noise ratio value of the non-HARQ burst.
3. The method of claim 1 , wherein the power offset is included in uplink control information broadcasted from the BS.
4. The method of claim 1 , wherein a value of the power offset is determined corresponding to size of a carrier to noise ratio value required for the transmission power.
5. The method of claim 1 , wherein a power control Information Element for each of the non-HARQ burst and the HARQ burst, broadcasted from the BS, includes a different connection identifier (CID) according to a burst type.
6. A method for controlling a transmission power of a user equipment (UE) at a base station (BS) in a wireless communication system, the method comprising:
determining a power offset to control a transmission power of a hybrid automatic repeat reguest (HARQ) burst for a user equipment (UE) relative to a non-HARQ burst; and
transmitting a message comprising the power offset to a UE,
wherein the transmission power of the HARQ burst is controlled by adjusting a carrier to noise ratio value for the HARQ burst referencing to the non-HARQ burst at the UE.
7. The method of claim 6 , wherein the power offset is added to a carrier to noise ratio value of the non-HARQ burst.
8. The method of claim 6 , wherein the power offset is included in uplink control information broadcasted by the BS.
9. The method of claim 6 , wherein a value of the power offset is determined corresponding to size of a carrier to noise ratio value required for the transmission power of the HARQ burst.
10. The method of claim 6 , further comprising:
broadcasting a power control Information Element for each of the non-HARQ burst and the HARQ burst including a different connection identifier (CID) according to a burst type.
11. A user equipment (UE) for controlling a transmission power in a wireless communication system, the UE comprising:
a receiver for receiving a message comprising a power offset for a hybrid automatic repeat request (HARQ) burst relative to a non-HARQ burst from a Base Station (BS);
a controller for controlling a transmitter transmitting the HARQ burst by controlling a transmission power of the HARQ burst using the power offset; and
the transmitter for transmitting the HARQ burst and the non-HARQ burst by controlling of the controller,
wherein the controller adjusts a carrier to noise ratio value for the HARQ burst referencing to the non-HARQ burst for controlling the transmission power.
12. The UE of claim 11 , wherein the controller adds the power offset to a carrier to noise ratio value of the non-HARQ burst for controlling the transmission power.
13. The UE of claim 11 , wherein the power offset is included in an uplink control information broadcasted from the BS.
14. The UE of claim 11 , wherein a value of the power offset is determined corresponding to size of a carrier to noise ratio value required for the transmission power.
15. The UE of claim 11 , wherein a power control Information Element for each of the non-HARQ burst and the HARQ burst, broadcasted from the BS, includes a different connection identifier (CID) according to a burst type.
16. A base station (BS) for controlling a transmission power of a user equipment (UE) in a wireless communication system, the BS comprising:
a controller for determining a power offset to control a transmission power of a hybrid automatic repeat request (HARQ) burst for a user equipment (UE) relative to a non-HARQ burst; and
a transmitter for transmitting a message comprising the power offset to the UE,
wherein the transmission power of the HARQ burst is controlled by adjusting a carrier to noise ratio value for the HARQ burst referencing to the non-HARQ burst at the UE.
17. The BS of claim 16 , wherein the controller adds the power offset to a carrier to noise ratio value of the non-HARQ burst.
18. The BS of claim 16 , wherein the power offset is included in uplink control information broadcasted by the BS.
19. The BS of claim 16 , wherein a value of the power offset is determined corresponding to size of a carrier to noise ratio value required for the transmission power.
20. The BS of claim 16 , wherein a power control Information Element for each of the non-HARQ burst and the HARQ burst includes a different connection identifier (CID) according to a burst type.