Method and apparatus for managing user equipment history information in wireless communication network
A method and an apparatus are provided in a wireless communication system. Mobility history information is generated including information on a time duration corresponding to out-of-service. It is identified whether the terminal is in a radio resource control (RRC) connected mode. The mobility history information is transmitted to a base station if the terminal is in the RRC connected mode.
1. A method by a terminal, the method comprising:
generating mobility history information upon entering an evolved universal mobile telecommunications system (UMTS) radio access network (E-UTRAN) from another radio access technology (RAT), the mobility history information including information on a time duration for which the terminal stayed outside of the E-UTRAN;
receiving, from a base station, a request for the mobility history information; and
transmitting the mobility history information to the base station, in response to the request.
2. The method of claim 1 , wherein generating the mobility history information comprises generating the mobility history information based on a generating event occurring.
3. The method of claim 2 , wherein the generating event includes time related information.
4. The method of claim 1 , wherein the mobility history information includes at least one of a cell identifier (ID) or a cell signal strength.
5. The method of claim 1 , wherein the information on the time duration indicates a duration of stay during the out-of-service state.
6. A terminal, the terminal comprising:
a transceiver; and
a controller configured to:
generate mobility history information upon entering an evolved universal mobile telecommunications system (UMTS) radio access network (E-UTRAN) from another radio access technology (RAT), the mobility history information including information on a time duration for which the terminal stayed outside of the E-UTRAN,
receive, via the transceiver, from a base station, a request for the mobility history information, and
transmit, via the transceiver, the mobility history information to the base station in response to the request.
7. The terminal of claim 6 , wherein the controller is further configured to transmit, via the transceiver, the mobility history information based on a generating event occurring.
8. The terminal of claim 7 , wherein the generating event includes time related information.
9. The terminal of claim 6 , wherein the mobility history information includes at least one of a cell identifier (ID) or a cell signal strength.
10. The terminal of claim 6 , wherein the information on the time duration indicates a duration of stay during the out-of-service state.
11. The terminal of claim 6 , wherein the mobility history information is generated upon entering in a radio resource (RRC) connected mode of the E-UTRAN or an RRC idle mode of the E-UTRAN.
12. The terminal of claim 6 , wherein the request for the mobility history information is received in a radio resource (RRC) connected mode of the E-UTRAN.
13. The terminal of claim 6 , wherein the E-UTRAN includes a long term evolution (LTE) system.
14. The method of claim 1 , wherein the mobility history information is generated upon entering in a radio resource (RRC) connected mode of the E-UTRAN or an RRC idle mode of the E-UTRAN.
15. The method of claim 1 , wherein the request for the mobility history information is received in a radio resource (RRC) connected mode of the E-UTRAN.
16. The method of claim 1 , wherein the E-UTRAN includes a long term evolution (LTE) system.