Apparatus and method of reporting logged measurement in wireless communication system
A method and apparatus of reporting logged measurements of an user equipment in a wireless communication system is provided. The user equipment in a Radio Resource Control (RRC) connected mode receives from a base station a Minimization of Drive Tests (MDT) configuration. The user equipment transitions from the RRC connected mode to an RRC idle mode and logs measurements based on the MDT configuration. The user equipment transmits to the base station a logging indicator indicating an availability of the logged measurement.
1. A method of reporting logged measurements for user equipment (UE) in a wireless communication network, the method comprising:
receiving a measurement configuration from the network;
logging one or more measurements based on the received measurement configuration;
transmitting a radio resource control (RRC) connection request message to the network;
receiving an RRC connection setup message from the network in response to the RRC connection request message; and
transmitting an RRC connection setup complete message in response to the RRC connection setup message,
wherein, when the RRC connection is established, the UE transmits to the network an indicator indicating the availability of the logged measurements and
the UE transmits the one or more logged measurements in response to an information request from the network.
2. The method of claim 1 , wherein the measurement configuration is a Minimization of Drive Tests (MDT) configuration.
3. The method of claim 1 , wherein the measurement configuration is received by the UE when the UE is in a Radio Resource Control (RRC) connected mode.
4. The method of claim 1 , wherein logging one or more measurements is performed when the UE is in a Radio Resource Control (RRC) idle mode.
5. The method of claim 1 , wherein the indicator is a one bit indicator.
6. The method of claim 1 , wherein the measurement configuration includes a logging interval indicating periodicity for the logging measurements.
7. The method of claim 1 , wherein the UE transmits the indicator to the network in the RRC connection setup complete message.
8. User equipment (UE) capable of reporting logged measurements in a wireless communication network, the UE comprising:
a processor configured to receive a measurement configuration from the network,
to log one or more measurements based on the received measurement configuration,
to transmit a radio resource control (RRC) connection request message to the network,
to receive an RRC connection setup message from the network in response to the RRC connection request message, and
to transmit an RRC connection setup complete message in response to the RRC connection setup message,
wherein, when the RRC connection is established, the UE transmits to the network an indicator that indicates the availability of the logged measurements and
the UE transmits the one or more logged measurements in response to an information request from the network.
9. The UE of claim 8 wherein the measurement configuration is a Minimization of Drive Tests (MDT) configuration.
10. The UE of claim 9 , wherein the measurement configuration is received at a Radio Resource Control (RRC) connected mode.
11. The UE of claim 8 , wherein the logging of the measurements is performed at a Radio Resource Control (RRC) idle mode.
12. The UE of claim 8 , wherein the indicator is a one bit indicator.
13. The UE of claim 8 , wherein the measurement configuration includes a logging interval indicating periodicity for the logging measurements.
14. The UE of claim 8 , wherein the UE transmits the indicator to the network in the RRC connection setup complete message.