Apparatus and method for performing measurement report considering in-device coexistence interference
The present invention relates to an apparatus and a method for performing measurement reporting considering in-device coexistence interference. The present invention provide a user equipment transmitting a measurement report in a wireless communication system, comprising an interference detection unit, an assistant information generation unit, a measurement controller and a transmitter. According to the present invention, a measurement procedure can be clearly defined in an interference delicate band where in-device coexistence interference occurs and scheduling restrictions on an eNodeB due to measurement reporting about an interference delicate band can be reduced.
1. A user equipment (UE) comprising:
an interference detection unit detecting a start of In-Device Coexistence (IDC) interference caused by signal transmission of a first network system against signal reception of a second network system;
an assistant information generation unit initiating assistant information indicating occurrence or expectation of the IDC interference; and
a transmitter transmitting the assistant information and a measurement report to an evolved NodeB (eNB), the measurement report comprising measurement values which are obtained without IDC interference.
2. The UE of claim 1 , further comprising:
a receiver receiving a response indicating coordination of the IDC interference based on the assistant information from the eNB.
3. The UE of claim 2 , wherein the interference detection unit controls the UE to be in an avoiding state against the IDC interference based on the response.
4. The UE of claim 1 , wherein the coordination of the IDC interference is based on FDM (Frequency Division Multiplexing) or TDM (Time Division Multiplexing).
5. The UE of claim 1 , wherein the measurement values are calculated using measurement samples obtained in a non-interference interval where the IDC interference does not occur.
6. A method comprising:
detecting a start of In-Device Coexistence (IDC) interference caused by signal transmission of a first network against signal reception of a second network;
transmitting, to an evolved NodeB (eNB), assistant information indicating occurrence or expectation of the IDC interference; and
transmitting, to the eNB, a measurement report comprising measurement values which are obtained without the IDC interference.
7. The method of claim 6 , further comprising:
receiving a response indicating coordination of the IDC interference based on the IDC indication.
8. The method of claim 7 , wherein, transmitting the measurement report is performed after receiving the response.
9. The method of claim 6 , wherein the coordination of the IDC interference is based on FDM (Frequency Division Multiplexing) or TDM (Time Division Multiplexing).
10. The method of claim 6 , further comprising:
obtaining measurement samples for calculating the measurement values in a non-interference interval where the IDC interference does not occur.
11. A method comprising:
receiving, from a user equipment (UE), assistant information indicating occurrence or expectation of In-Device Coexistence (IDC) caused by signal transmission of a first network system against signal reception of a second network system in the UE; and
receiving a measurement report comprising measurement values which are obtained without IDC interference.
12. The method of claim 11 , further comprising:
generating a response indicating coordination of the IDC interference based on the IDC indication; and
transmitting the response.
13. The method of claim 11 , wherein the coordination of the IDC interference is based on FDM (Frequency Division Multiplexing) or TDM (Time Division Multiplexing).
14. The method of claim 11 , wherein the measurement values are calculated using measurement samples obtained in a non-interference interval where the IDC interference does not occur.