Method and System for Collecting Statistics on User Equipment Information in Multimedia Broadcast Multicast Service

1. A method for collecting statistics of User Equipment (UE) information in a Multimedia Broadcast Multicast Service (MBMS), comprising: a UE sending a dedicated Radio Resource Control (RRC) signaling carrying feedback information to a network side when a trigger condition is satisfied, wherein the feedback information comprises a service identification (ID), and at least one of the following: a UE status and an area ID, wherein the service ID comprises: a Temporary Mobile Group Identity (TMGI), and/or a Physical Multicast Channel (PMCH) ID, and/or a Logic Channel Identification (LCID), and/or a session ID, and/or a service list index, and/or a service guidance ID; the network side collecting statistics of UE information according to the feedback information in the dedicated RRC signaling to meet requirements for activating or deactivating a Multicast Broadcast Single Frequency Network (MBSFN) transmission mode of the MBMS, and sending, when the collected statistics of the UE information satisfy the requirements, a feedback stop indicator to the UE; and the UE stopping sending the feedback information after receiving the feedback stop indicator.

2. The method according to claim 1 , wherein the trigger condition comprises: a trigger by the network side and/or an active trigger by the UE, wherein the trigger by the network side is that: the network side sends a feedback request to trigger a feedback; the active trigger by the UE is that: a feedback cycle is set and the feedback is triggered when the feedback time arrives; or, a trigger event is set and the feedback is triggered when the trigger event occurs.

3. The method according to claim 2 , wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.

4. The method according to claim 1 , wherein the dedicated RRC signaling carrying the feedback information comprises a new RRC signaling which is created according to an RRC rule and is used to carry the feedback information dedicatedly.

5. The method according to claim 4 , wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.

6. The method according to claim 1 , wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.

7. The method according to claim 1 , wherein the feedback stop indicator is implemented by creating a new RRC signaling, or using an existing RRC signaling, to carry an identifier indicating the UE to stop sending the dedicated RRC signaling carrying the feedback information.

8. The method according to claim 7 , wherein the existing RRC signaling comprises at least one of the following: an RRC connection setup message, an RRC connection reconfiguration message, an RRC connection re-establishment message, an RRC connection re-establishment rejection message, an RRC connection release message, an RRC connection rejection message, an MBMS point-to-multipoint Control CHannel (MCCH) message, and a System Information Block 13 (SIB13) message.

9. The method according to claim 1 , wherein the step of the UE sending the dedicated RRC signaling carrying the feedback information to the network side comprises: if a UE status does not change within one feedback cycle and a feedback request is received only once, the UE sending the dedicated RRC signaling carrying the feedback information once; if the UE status changes within one feedback cycle or the feedback request is received more than once, the UE sending the dedicated RRC signaling carrying the feedback information each time the UE status changes or each time the UE receives the feedback request.

10. The method according to claim 9 , wherein a change of a UE reception status comprises at least one of the following: a change from not interested in receiving to interested in receiving, a change from interested in receiving to not interested in receiving, a change from not receive to start to receive, a change from receiving to stop receiving, and a change in a receiving bearer.

11. A system for collecting statistics of User Equipment (UE) information in a Multimedia Broadcast Multicast Service (MBMS), comprising: a UE and a network side; wherein the UE is configured to send a dedicated Radio Resource Control (RRC) signaling carrying feedback information to the network side according to a trigger condition, and stop sending the dedicated RRC signaling carrying the feedback information after receiving a feedback stop indicator sent by the network side, wherein the feedback information comprises a service identification (ID), and at least one of the following: a UE status and an area ID, wherein the service ID comprises: a Temporary Mobile Group Identity (TMGI), and/or a Physical Multicast Channel (PMCH) ID, and/or a Logic Channel Identification (LCID), and/or a session ID, and/or a service list index, and/or a service guidance ID; the network side is configured to receive the dedicated RRC signaling sent by the UE, collect statistics of UE information according to the feedback information in the dedicated RRC signaling to meet requirements for activating or deactivating a Multicast Broadcast Single Frequency Network (MBSFN) transmission mode of the MBMS, and send, when the collected statistics of the UE information satisfy the requirements, the feedback stop indicator to the UE.

12. The system according to claim 11 , wherein the UE comprises a trigger unit, a feedback unit and a stop unit, wherein the trigger unit is configured to trigger the feedback unit according to the trigger condition; the feedback unit is configured to send the dedicated RRC signaling carrying the feedback information to the network side; the stop unit is configured to notify, after receiving the feedback stop indicator from the network side, the feedback unit to stop sending the dedicated RRC signaling carrying the feedback information; the network side comprises: a statistics collection unit and a signaling sending unit, wherein the statistics collection unit is configured to receive the dedicated RRC signaling sent by the UE, collect the statistics according to the feedback information in the dedicated RRC signaling, and notify the signaling sending unit when the collected statistics of the UE information satisfy the requirement; the signaling sending unit is configured to send the feedback stop indicator to the UE.

13. The system according to claim 12 , wherein when the trigger condition is that the network side sends a feedback request to trigger a feedback, the network side further comprises a feedback request unit configured to send the feedback request to the UE; correspondingly, the trigger unit is further configured to receive the feedback request sent by the network side.

14. The system according to claim 13 , wherein the statistics collection unit is specifically configured to count the number of UEs in different statuses currently in each service according to a UE status, an area identification (ID) and a service ID included in the feedback information in the dedicated RRC signaling, wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.

15. The system according to claim 12 , wherein the trigger unit is further configured to trigger the feedback unit when detecting that a UE status of the UE, in which the trigger unit is located, changes; wherein a change of the UE status comprises at least one of the following: a change from not interested in receiving to interested in receiving, a change from interested in receiving to not interested in receiving, a change from not receive to start to receive, a change from receiving to stop receiving, and a change in a receiving bearer.

16. The system according to claim 12 , wherein the statistics collection unit is specifically configured to count the number of UEs in different statuses currently in each service according to a UE status, an area identification (ID) and a service ID included in the feedback information in the dedicated RRC signaling, wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.

17. The system according to claim 11 , wherein the statistics collection unit is specifically configured to count the number of UEs in different statuses currently in each service according to a UE status, an area identification (ID) and a service ID included in the feedback information in the dedicated RRC signaling, wherein the UE status comprises at least one of the following: interested in receiving, not interested in receiving, start to receive, stop receiving, receiving bearer change, cell update and cell handover; the area ID comprises: a Multicast Broadcast Single Frequency Network (MBSFN) area ID, or a notification indicator.