| 摘要 |
<p>PURPOSE: A method and apparatus for performing semi persistent scheduling of a terminal receiving an MBMS(multimedia broadcast multicast service) service at a MBSFN(multimedia broadcast multicast service single frequency network) subframe in a wireless communication system are provided to determine whether or not to perform down link scheduling and then perform down link scheduling according to a determination result. CONSTITUTION: Down link scheduling is sensed in any transmission time intervals. A process state of the down link scheduling is determined according to a set-up state of a transmission mode 9 of a terminal or a state corresponding to a MBSFN subframe of a transmission time interval(750). The down link scheduling is processed according to determination result(760). The processing step can further include a step of determining the transmission time interval and a step of ignoring the down link scheduling. [Reference numerals] (700) RRC connection formation; (705) Reception of an MBSFN subframe setting list from a PCell; (710) Is a user interested in an MBMS service?; (715) Message 1 reception: receiving of information related to an MBMS service, which is provided from a current cell and peripheral cell of a peripheral frequency band, in a message 1.; (720) Interesting service?; (725) Information related to a frequency receiving the MBMS service which a user wants to receive or receives. For example, the information showing whether or not the service is provided to a current serving frequency is transmitted to a base station.; (730,765) Serving cell is a PCell and downlink scheduling for current TTI is set for the PCell.; (735,770) Does the current TTI belong to a measurement section?; (740) Is the current TTI an MBSFN subframe of the PCell?; (745) Is the interesting MBMS service provided to the current subframe?; (750,775) Is a set transmission mode TM9?; (755,790) Direction of receiving a transmission block on DL-SCH and transmitting the transmission block to an HARQ entity according to down link scheduling, which is set in a physical layer, in the current TTI; (760,785) Preset down link scheduling discard; (780) Is not the current TTI the MBSFN subframe of the PCell?</p> |
