Method and device for suggesting recording information and acquiring positional information to allow MDT technology to be effectively utilized in a mobile communication system
A method of measuring channel information using a terminal in a communication system, according to an embodiment of the present invention, includes the steps of: receiving channel measurement setup information from a base station; entering an idle mode in the state of communication with the base station; measuring information indicating according to the channel measurement setup information; and transmitting a signal including the measured information to the base station. In addition, a terminal for measuring channel information according to another embodiment of the present invention includes: a transmitting/receiving unit for receiving channel measurement setup information from a base station; and a control unit for controlling the terminal so that the terminal enters an idle mode in the state of communication with the base station and measures information indicating according to the channel measurement setup information, wherein the transmitting receiving unit transmits a signal including the measured information to the base station. According to an embodiment of the present invention, it is easier to identify a channel state by using an MDT measurement result by further reporting various pieces of information when measuring MDT. In addition, it is possible to perform a report on MDT measurement by using a terminal and thus the need for a drive test may be reduced.
1. A method by a terminal in a communication system, the method comprising:
receiving channel measurement configuration information including information indicating whether to exclude channel information which is affected by an interference from a base station;
measuring channel information;
identifying whether the measured channel information is affected by an interference between communication modules of the terminal;
generating, based on the channel measurement configuration information, reporting information by applying a weighted average of at least one channel information without the measured channel information which is affected by the interference between communication modules of the terminal, based on the channel measurement configuration information; and
transmitting the generated reporting information.
2. The method of claim 1 , wherein generating the reporting information is performed by an L3 filtering process using the following equation:
F n =(1 −a )· F n−1 +a·M n ,
with F n−1 denoting a previous filtering value, M n denoting a newly measured value and F n denoting a current filtering value.
3. The method of claim 1 , further comprising checking priority of a frequency band for communication of the terminal,
wherein the transmitting of the generated reporting information comprises transmitting the generated reporting information including priority information of the frequency band for the communication of the terminal.
4. The method of claim 1 , further comprising:
determining whether the terminal has turned on a location measurement module; and
turning, if the location measurement module has not been turned on, on the location measurement module,
wherein transmitting the reporting information comprises transmitting a signal including the location information measured by the location measurement module.
5. The method of claim 1 , wherein the transmitting the generated reporting information comprises:
transmitting, if a measurement period determined based on the received channel measurement configuration information expires or the terminal transitions to a connected mode, the generated reporting information.
6. The method of claim 1 , wherein the transmitting of the generated reporting information comprises:
determining whether current Public Land Mobile Network (PLMN) after transitioning to a connected mode is included in a Minimization of Drive Test (MDT) PLMN list; and
transmitting, if the current PLMN is included in the MDT PLMN list, the generated reporting information.
7. A terminal comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to:
control the transceiver to receive channel measurement configuration information including information indicating whether to excluding channel information which is affected by an interference from a base station,
measure channel information,
identify whether the measured channel information is affected by an interference between communication modules of the terminal;
generate, based on the channel measurement configuration information, reporting information by applying a weighted average of at least one channel information without the measured channel information which is affected by the interference between communication modules of the terminal, based on the channel measurement configuration information; and
control the transceiver to transmit the generated reporting information.
8. The terminal of claim 7 , wherein, for generating the reporting information, the controller is configured to perform an L3 filtering process using the following equation:
F n =(1 −a )· F n−1 +a·M n ,
with F n−1 denoting a previous filtering value, M n denoting a newly measured value and F n denoting a current filtering value.
9. The terminal of claim 7 , wherein the controller is further configured to check priority of a frequency band for communication of the terminal, and the transceiver is configured to transmit the generated reporting information including priority information of the frequency band for the communication of the terminal.
10. The terminal of claim 7 , further comprising a location measurement module for measuring location information of the terminal,
wherein the controller is further configured to turn, if the location measurement module has not been turned on, on the location measurement module, and the transceiver is further configured to transmit a signal including the location information measured by the location measurement module.
11. The terminal of claim 7 , wherein the transceiver is further configured to transmit, if a measurement period determined based on the received channel measurement configuration information expires or the terminal transitions to a connected mode, the generated reporting information.
12. The terminal of claim 7 , wherein the controller is further configured to determine whether a current Public Land Mobile Network (PLMN) after transitioning to a connected mode is included in a Minimization of Drive Test (MDT) PLMN list, and the transceiver transmits, if the current PLMN is included in the MDT PLMN list, the generated reporting information.