Method and apparatus for performing selective MBMS MDT in wireless communication system
AssigneeLG Electronics Inc.
InventorsSangwon Kim, Youngdae Lee, Sunghoon Jung
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Abstract
A method and apparatus for performing multimedia broadcast multicast service (MBMS) minimization of drive test (MDT) in a wireless communication system is provided. Upon receiving a MBMS-MDT configuration from a network, a user equipment (UE) selects a subset of multicast broadcast single frequency network (MBSFN) areas among multiple MBSFN areas providing interested MBMS services, and performs MBMS-MDT only for the selected subset of MBSFN areas. The subset of MBSFN areas may be selected based on priorities of the multiple MBSFN areas.
Claims8
A method for performing, by a user equipment (UE), multimedia broadcast multicast service (MBMS) minimization of drive test (MDT) in a wireless communication system, the method comprising:
- receiving, by the UE, a MBMS-MDT configuration from a network;
- selecting, by the UE, a subset of multicast broadcast single frequency network (MBSFN) areas among multiple MBSFN areas providing interested MBMS services based on a list of MBSFN areas and a maximum number of MBSFN areas in the MBMS-MDT configuration;
- performing, by the UE, MBMS-MDT only for the selected subset of MBSFN areas;
- and
- reporting, by the UE, a corresponding MBMS-MDT result to the network,
- wherein the list of MBSFN areas indicates MBSFN areas to be selected by the UE, where an order of the MBSFN areas in the list coincides with a priority of the MBSFN areas respectively,
- wherein the maximum number of MBSFN areas indicates a number of MBSFN areas on which the MBMS-MDT is to be performed simultaneously, and
- wherein, when the UE starts to receive a MBMS service provided by a specific MBSFN area having a higher priority than the selected subset of MBSFN areas while the UE is performing MBMS-MDT for the selected subset of MBSFN areas, if the number of the MBSFN areas in the selected subset is equal to the maximum number of MBSFN areas, the UE stops performing MBMS-MDT for a MBSFN area having a lowest priority among the selected subset before starting to perform MBMS-MDT for the specific MBSFN area based on the list.
A user equipment (UE) configured to perform multimedia broadcast multicast service (MBMS) minimization of drive test (MDT) in a wireless communication system, the UE comprising:
- a radio frequency (RF) unit configured to transmit or receive a radio signal;
- and
- a processor coupled to the RF unit, and configured to:
- receive a MBMS-MDT configuration from a network;
- select a subset of multicast broadcast single frequency network (MBSFN) areas among multiple MBSFN areas providing interested MBMS services based on a list of MBSFN areas and a maximum number of MBSFN areas in the MBMS-MDT configuration;
- perform MBMS-MDT only for the selected subset of MBSFN areas;
- and
- report a corresponding MBMS-MDT result to the network,
- wherein the list of MBSFN areas indicates MBSFN areas to be selected by the UE, where an order of the MBSFN areas in the list coincides with priority of the MBSFN areas respectively,
- wherein the maximum number of MBSFN areas indicates a number of MBSFN areas on which the MBMS-MDT is to be performed simultaneously, and
- wherein, when the UE starts to receive a MBMS service provided by a specific MBSFN area having a higher priority than the selected subset of MBSFN areas while the UE is performing MBMS-MDT for the selected subset of MBSFN areas, if the number of the MBSFN areas in the selected subset is equal to the maximum number of MBSFN areas, the UE stops performing MBMS-MDT for a MBSFN area having a lowest priority among the selected subset before starting to perform MBMS-MDT for the specific MBSFN area based on the list.
Dependencies are inferred from the claim text.