WO2010133039A1 - Method and apparatus for sending paging message - Google Patents

Abstract

The embodiments of the present invention disclose a method and apparatus for sending a paging message. The method includes: network side sends TA identifier information of every MBSFN synchronization area, and network side receives identifier information of MBSFN synchronization area selected by a terminal; the identifier information is identifier information of MBSFN synchronization area serving the terminal, which is selected by the terminal according to the TA identifier information of the MBSFN synchronization area, and network side selects appropriate area in the MBSFN to send paging messages according to the identifier information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, the terminal does not have to initiate location update when moving in the MBSFN synchronization area because MBMS dedicated cells in the area have same TA identifier, thus the complexity of location management is reduced, and one time paging is employed at the same time so as to decrease time delay of paging.

Description

 Method and device for transmitting paging message

 The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for transmitting a paging message. Background technique

 The long-term evolution system supports dedicated carrier frequency transmission MBMS (Mul t imedia Broadcas t Mul t icas t Service, multimedia broadcast/multicast service), and the area for MBMS service transmission on the dedicated carrier frequency is MBSFN (Mul t imedia Broadcas t Mul t ica St Service Sing le Frequency Network, multimedia broadcast/multicast service single frequency network) Synchronization area, MBSF area, MBMS cell structure. When the MBMS service is transmitted on the MBMS dedicated carrier frequency, the MBMS area composed of the cells does not transmit the non-MBMS service, and the non-MBMS service is transmitted by the unicast cell on the normal carrier frequency. These unicast cells constitute a unicast network, MBSFN The sync area and the unicast network have the same coverage.

 When the MBMS service is transmitted on the dedicated carrier frequency, after the terminal enters the network, it needs to register in the MBMS dedicated cell to which the terminal belongs and the unicast cell with the same coverage. The system is the MBMS dedicated cell and the same coverage area as the cell. A plurality of unicast cells are respectively assigned a TA (Tracking Area) identifier. The network side pages the terminal in the M layer S area, and the network side first sends a paging message in an MBMS dedicated cell. According to the LTE location update rule, when the terminal moves in the MBMS area, it is necessary to perform measurement and reselection operations of the MBMS dedicated cell to complete the location update.

 The network side sends a paging message to the MBMS dedicated cell to page the terminal in the MBMS area, and the terminal needs to perform location update when moving in the MBMS area. At this time, since the MBMS service is transmitted on the dedicated carrier frequency, all the downlink subframes are used for the transmission of the MBMS service, and the location update information of the terminal cannot be sent to the network side through the MBMS dedicated carrier frequency. To send a location update message, the terminal needs to access a unicast cell with the same coverage in the inter-frequency, send a location update message in the cell, and re-access the MBMS dedicated cell after the terminal sends the location update message in the unicast cell. This requires frequent frequency conversion, which brings complexity of location management and affects the continuity of MBMS services, and causes paging delay. Summary of the invention

 The embodiment of the invention provides a method and a device for sending a paging message, which can reduce the complexity of location management and further reduce the paging delay.

 In order to achieve the above object, the technical solution provided in the embodiments of the present invention is as follows:

The network side sends the TA identifier information of each MBSFN synchronization area; The network side receives the identifier information of the MBSFN synchronization area selected by the terminal; the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area;

 The network side selects an appropriate range to send a paging message in the MBSFN synchronization area according to the identification information of the selected MBSFN synchronization area.

 An embodiment of the present invention provides another method for sending a paging message, including: selecting, by the terminal, the TA identity information of the MBSFN synchronization area as the MBSFN synchronization area of the terminal service;

 The terminal transmits the identification information of the selected MBSFN synchronization area.

 The embodiment of the invention further provides a sending device for paging messages, including:

 a sending module, configured to send TA identifier information of each MBSFN synchronization area;

 The receiving module is configured to receive the identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area sent by the sending module. ;

 The processing module is configured to: according to the TA identifier information of the SFN synchronization area selected by the receiving module, select a suitable range to send a paging message in the MBSFN synchronization area.

 The embodiment of the invention further provides a user equipment, including:

 a receiving module, configured to receive management identifier information that is sent by the network side and allocated for each MBSFN synchronization area;

 a selection module, configured to select, according to management identifier information of the MBSFN synchronization area, an MBSFN synchronization area serving the terminal;

 And a sending module, configured to send identifier information of the selected MBSFN synchronization area.

The network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is selected by the terminal according to the TA identifier information of the MBSFN synchronization area. The identifier information of the MBSFN synchronization area of the terminal service is used to select a suitable range to send a paging message in the MBSFN synchronization area according to the TA identifier information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management, and uses one paging, minus Small paging delay. DRAWINGS

 In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following drawings will be briefly described, and the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings may be obtained from these drawings without the inventive labor.

 1 is a schematic structural diagram of a MBMS dedicated cell and a geographically distributed unicast cell according to the prior art; FIG. 2 is a flowchart of a paging message sending method according to Embodiment 1 of the present invention;

 3 is a flowchart of a method for sending a paging message according to Embodiment 3 of the present invention;

 4 is another flowchart of a method for sending a paging message according to Embodiment 3 of the present invention;

 5 is a flowchart of a method for sending a paging message according to Embodiment 4 of the present invention;

 6 is a flowchart of a method for sending a paging message according to Embodiment 5 of the present invention;

 7 is a flowchart of a method for sending a paging message according to Embodiment 6 of the present invention;

 FIG. 8 is a schematic structural diagram of a paging message sending apparatus according to an embodiment of the present invention;

 FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

 FIG. 10 is a flowchart of a method for sending a paging message according to Embodiment 2 of the present invention.

detailed description

 The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

 As shown in Figure 1, when the MBMS service is transmitted on the dedicated carrier frequency, the terminal needs to register in the MBMS dedicated cell to which the terminal belongs and the unicast cell with the same coverage after the terminal enters the network. The system is the MBMS dedicated cell and the A unicast cell with the same coverage area is assigned a TA identifier, and the paging process of the terminal on the network side is as follows:

 1. The network side sends a paging message under the TA of the MBMS dedicated cell;

 2. The terminal receives the paging message to the terminal on the network side, and the terminal sends a paging response message to the network side. If the network side receives the paging response message of the terminal, the subsequent operation is not performed; otherwise, step 3 is performed;

3. The network side replies the terminal again in the unicast cell having the same coverage as the MBMS dedicated cell. After receiving the paging message, the terminal sends a paging response message; if the network side sends the paging cancellation again If the paging response message of the terminal is still not received, the paging of the terminal fails on the network side.

 In the process of implementing the present invention, the inventors have found that since the network sends a paging message to the MBMS dedicated cell and pages the terminal in the MBMS area, the terminal needs to perform location update when moving in the MBMS area. At this time, since the MBMS service is transmitted on the dedicated carrier frequency, all the downlink subframes are used for the transmission of the MBMS service, and the location update information of the terminal cannot be sent to the network side through the MBMS dedicated carrier frequency. To send a location update message, the terminal needs to access a unicast cell with the same coverage in the inter-frequency, and after the terminal sends the location update message in the unicast cell, re-access the MBMS dedicated cell, which requires frequent frequency conversion. As a result, the complexity of location management is brought about, and the continuity of the MBMS service is affected, and the paging delay is caused by the secondary paging.

 The embodiment of the present invention provides a method and a device for sending a paging message. The network side manages the MBSFN synchronization area as a TA. By assigning a management identifier to each MBSFN synchronization area, the network side saves the received terminal service. The identification information of the MBSFN synchronization area, according to the identification information, selects an appropriate range to send a paging message in the MBSFN synchronization area, which reduces the complexity of the location management, thereby reducing the paging delay.

 The detailed description will be respectively made below through specific embodiments.

 Referring to FIG. 2, a first embodiment of a method for sending a paging message according to an embodiment of the present invention may include:

 2 01. The network side sends the TA identifier information of each MBSFN synchronization area.

 The network side uses each MBSFN synchronization area as a management area, assigns a TA identifier to each MBSFN synchronization area, and sends TA identification information of each MBSFN synchronization area to the terminal.

 2 02. The network side receives the identifier information of the MBSFN synchronization area selected by the terminal; the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area;

 The identifier information of the MBS FN synchronization area selected by the network side receiving terminal includes: the TA identifier information of the MBSFN synchronization area selected by the network side receiving terminal; or the TA identifier information of the MBSFN synchronization area selected by the network side receiving terminal. SFA identification information of the area synchronized with the MBSFN.

In the step 202, after the network side receives the identifier information of the MBSFN synchronization area selected by the terminal, the network side further includes the TA identifier of the MBSFN synchronization area selected by the network side, or the MBSFN synchronization area selected by the terminal. The TA identifier and the SFA identifier of the MBSFN synchronization area are stored in the unicast control entity; or the TA identifier of the MFSFN synchronization area selected by the terminal on the network side, or the terminal The TA identifier of the selected MBSFN synchronization area and the SFA identifier of the MFSFN synchronization area are stored in the multicast control entity; or the network side saves the received TA of the MBSFN synchronization area selected by the terminal in the unicast control entity and In the multicast control entity, the network side saves the received SFA identifier of the MBSFN synchronization area selected by the terminal in the multicast control entity.

 203. The network side sends a paging message by selecting an appropriate range in the MBSFN synchronization area according to the identifier information of the selected MBSFN synchronization area.

 The network side sends a paging message in the MBSFN synchronization area to select an appropriate range, including:

 If the identifier information of the selected MBSFN synchronization area is the TA identifier of the MBSFN synchronization area, the network side selects the synchronization area of the MBSFN to send a paging message; if the identifier information of the selected MBSFN synchronization area is the MBSFN synchronization area i or the TA identifier And the SFA identifier of the synchronization area of the MBSFN, the network side sends a paging message to the SFA area of the synchronization area of the MBSFN.

 The foregoing step further includes: selecting, for the dedicated carrier frequency, that the unicast resource is used to send the paging message, then selecting to send the paging message by using the unicast subframe; otherwise, selecting to send the paging message by using the multicast subframe.

 Further, the step 203 further includes: for the hybrid cell, the network side compares the area corresponding to the TA identifier of the unicast network with the area corresponding to the SFA identifier of the MBMS of the multimedia broadcast/multicast service; if the area corresponding to the TA identifier of the unicast network is larger than the MBMS The area corresponding to the SFA identifier of the service sends a paging message in the area corresponding to the SFA identifier of the MBMS service; if the area corresponding to the TA identifier of the unicast network is smaller than the area corresponding to the SFA identifier of the MBMS service, the unicast network The TA identifier corresponding area sends a paging message.

 It should be noted that, in the foregoing step, the network side device may be a Mobility Management Entity (M2), an MCE (Multi-cell/Multicast Co-ordination Entity), and an EMBMS GW. (Evolved Multimedia Broadcast Multicast Service Gageway, Evolved Multimedia Broadcast/Multicast Service Network Management), HSS (Home Subscriber Service), or other devices with the same functions, such as mobile phones, personal digital processing, and portable computers. Or other devices having similar communication functions, etc., the invention is not limited.

In this embodiment, the network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is the TA identifier of the terminal according to the MBSFN synchronization area. The information is selected as the identification information of the MBSFN synchronization area served by the terminal, and the paging message is selected by selecting an appropriate range in the MBSFN synchronization area according to the TA identification information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, due to the MBMS of the area The dedicated cells all have the same TA identity, and the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management, and uses one page at a time to reduce the paging delay.

 Referring to FIG. 10, a second embodiment of a method for sending a paging message according to an embodiment of the present invention may include:

 1 001. The terminal receives the TA identifier information that is sent by the network side and is allocated for each MBSFN synchronization area.

1 002. The terminal selects an MBSFN synchronization area serving the terminal according to the TA identifier information of the MBSF synchronization area.

 1 003. The terminal sends the identifier information of the selected MBSFN synchronization area.

 The step 1 003, the sending, by the terminal, the identifier information of the selected MBSFN synchronization area includes: sending, by the terminal, the TA identifier information of the selected MBSFN synchronization area; or transmitting, by the terminal, the TA identifier information and the MBSFN of the selected MBSFN synchronization area. SFA identification information of the synchronization area.

 Further, the terminal sends the TA identifier of the selected MBSFN synchronization area to the unicast control entity; or the terminal sends the TA identifier of the selected MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the unicast control entity or the multicast control entity; or The terminal transmits the TA identifier of the selected MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the unicast control entity and the multicast control entity.

 In this embodiment, the network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is the TA identifier information of the terminal according to the MBSFN synchronization area. Selecting the identifier information of the MBSFN synchronization area serving the terminal, and selecting a suitable range to send a paging message in the MBSFN synchronization area according to the identifier information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management and uses one page at a time. The paging delay is reduced.

 For the sake of understanding, in the unicast network scenario, the network side device E is taken as an example for specific description. The MME uses the MBSFN synchronization area as a TA, and assigns a TA identifier to the MBSFN synchronization area. The MME is in the TA. The paging terminal is configured to store the identification information of the MBSFN synchronization area of the terminal in the 匪E. Referring to FIG. 3, a third embodiment of the method for sending a paging message in the example of the present invention includes:

 301. After assigning a TA identifier to each MBSFN synchronization area, the E sends the identification information to the terminal.

302. The terminal selects an MBSFN serving the terminal according to the identifier information of the MBSFN sent by the E. Synchronization area

 303a. The terminal sends the selected TA identifier information of the MBSFN synchronization area served by the terminal to the MME.

 304a. 匪 E saves the TA identification information of the received MBSFN synchronization area;

 After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells of the area have the same

The TA identifier, the terminal moves within this area does not initiate a location update.

 305a, 匪 E, after receiving the paging message, obtaining the TA identifier of the MBSFN synchronization area served by the terminal and the EMBMS GW corresponding to the identifier information by querying the identifier information saved by the MME itself;

 306. The MME sends the paging message to the EMBMS GW corresponding to the synchronization area TA identifier. The paging message includes a terminal identifier and a paging cause, and the terminal identifier may be an international mobile subscriber identity or a temporary mobile subscriber identity. The reason can be triggered by the service arrival of the inter-frequency unicast cell, or the paging can be triggered by the change of the system message.

 307. The EMBMS GW sends a paging message to all eNBs in the MBSFN synchronization area.

 308. After receiving the paging message, the eNB sends a paging message in multiple cells corresponding to the eNB. Alternatively, as shown in FIG. 4, in steps 303b to 305b, the terminal may further send the TA identifier of the MBSFN to the unicast control entity HSS through the network, and the HSS saves the TA identifier of the MBSFN, and the MN receives the paging message. Obtain the terminal TA identifier and the corresponding EMBMS GW by querying the HSS.

 It can be seen that, in the unicast scenario, the network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, and the identifier information is the terminal. The identifier information of the MBSFN synchronization area served by the terminal is selected according to the TA identifier information of the MBSFN synchronization area, and the paging message is selected by selecting an appropriate range in the MBSFN synchronization area according to the TA identifier information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management, and uses one paging, minus Small paging delay.

For the sake of understanding, the scenario of the hybrid cell is taken as an example. 匪E receives the paging message generated by the unicast network, triggers the MCE to search for the terminal according to the paging message, and the network side will identify the TA identifier of the MBSFN synchronization area served by the terminal. The SFA identifiers that are stored in the 匪E and the MCE, and are also stored in the MCE, are also stored in the MCE. Referring to FIG. 5, a fourth embodiment of the method for sending a paging message in the example of the present invention includes: 5 01. The terminal receives E to allocate a TA identifier information to each MBSFN synchronization area. 5 02. The terminal selects an MBSFN synchronization area serving the terminal and an SFA in the MBSFN synchronization area according to the TA identifier information of the MBSFN synchronization area. region;

 5: The terminal sends the selected TA identifier information of the MBSFN synchronization area and the SFA identification information of the MBSFN synchronization area to the MME;

 It should be noted that the MN and the HSS are unicast control entities on the network side. In step 503, the terminal may also send the TA identifier information of the MBSFN synchronization area to the HSS.

 The MME sends the TA identity information of the MBSFN synchronization area and the SFA identification information of the MBSFN synchronization area to the MCE to the MCE.

 5 05. The MME saves the TA identifier information of the MBSFN synchronization area selected by the terminal.

 5 06. The MCE saves the TA identifier of the MBSFN synchronization area and the SFA identifier information of the MBSFN synchronization area after the terminal is selected;

 It should be noted that the MCE and the EMBMS GW are multicast control entities on the network side. Therefore, in step 504, the MME may also send the TA identifier of the synchronization area of the selected MBSFN and the SFA identifier of the synchronization area of the MBSFN to the multicast. The control entity EMBMS GW, correspondingly, in step 506, the EMAMS GW may also save the TA identifier of the synchronization area selected by the terminal and the SFA identification information of the MBSFN synchronization area.

 After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells of the area all have the same TA identity, the terminal does not initiate location update when moving within the area. If the SFA where the terminal is located changes, the terminal sends the corresponding SFA identifier to the multicast control entity. The reason for the change of the SFA in which the terminal is located may be that the control entity on the network side adjusts the SFA area that provides the service, or the terminal moves into the new SFA coverage area, or selects a new service for the terminal. The SFA area is different from the SFA area before selection.

 5 07, 丽 E receives the paging message for the terminal, and the MN obtains the TA identifier of the MBSFN synchronization area of the terminal according to the identification information stored by the MN;

 匪 E according to the TA identifier of the MBSFN synchronization area selected by the terminal, or E may also query the HSS to obtain the TA identifier of the MBSFN synchronization area selected by the terminal.

The paging message includes a terminal identifier and a paging cause, where the terminal identifier may be an international mobile subscriber identity or a temporary mobile subscriber identity; the paging cause may be triggered by the service of the inter-frequency unicast cell, and The page can be triggered by a change in the system message. 5 08. The E sends the terminal identifier and the corresponding TA identifier of the selected MBSFN synchronization area to the MCE, and queries the SFA identifier of the MFSFN synchronization area selected by the terminal and the corresponding eNB information.

The MCE obtains the SFA area information of the MFSFN synchronization area of the terminal and the eNB information corresponding to the SFA identifier of the MFSFN synchronization area according to the TA identifier and the terminal identifier of the selected synchronization area; 5 10 0, the MCE sends to the 匪E All eNB information corresponding to the SFA area of the MFSFN synchronization area where the terminal is located;

 5 1 1. 匪 E sends a paging message to the EMBMS GW that carries the SFA identifier corresponding to the eNB information of the MFSFN synchronization area;

 5: The EMBMS GW sends the paging message to all the eNBs corresponding to the SFA in the MFSFN synchronization area. 5 1 3. After receiving the paging message, the eNB sends a paging message in the cell corresponding to the eNB.

 It can be seen that, in the scenario of the hybrid cell, the network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the identifier information of the MBSFN synchronization area selected by the terminal, and the identifier information is determined by the terminal according to the The identifier information of the MBSFN synchronization area of the MBSFN synchronization area is selected as the identifier information of the MBSFN synchronization area of the terminal, and the identifier information includes the TA identifier information of the MBSFN synchronization area selected by the terminal and the SFA identifier information of the MBSFN synchronization area, and the network side selects according to the selection. The identification information of the MBSFN synchronization area, in the MBSFN synchronization area, the paging message is sent in the SFA area of the MBSFN synchronization area smaller than the MBSFN synchronization area, thereby using one paging, reducing the paging delay, and more effective Paging to the terminal. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management.

 The location update operation in the unicast state follows the existing rules. That is, when the UE registers with the network, the network assigns a TA list to it, and the list can contain a set of TAs. Each cell belongs to one TA; one TA consists of multiple cells. The UE moves between cells, and if the TA corresponding to the cell is found not in the TA list, the location update is initiated.

 A hybrid cell refers to a frequency layer used by the cell to transmit both unicast traffic and MBMS traffic.

The MBMS network is composed of a hybrid cell, and some subframes of the same frame can be transmitted by the MBMS service in the MBSFN manner, and the remaining subframes are used for the transmission of the unicast service.

The following uses the hybrid d and the area as the reference point. The network side allocates a TA identifier for each MBSFN synchronization area, and the network side uses the MBSFN synchronization area as the TA managed by the MBMS. If the paging message arrives, the unicast resource can be used for sending the search. For the message, the unicast subframe is selected to send the paging in the appropriate range of the unicast TA. If the multicast subframe is used, the paging message is sent in a suitable range in the MBSFN synchronization area; the terminal stores the MBSFN synchronization area information and the SFA information of the terminal in the control entity on the network side. Referring to FIG. 6, a method for sending a paging message according to Embodiment 5 of the present invention may include:

 6 01. The MME sends a TA identifier information allocated to each MBSFN synchronization area to the terminal. 6 02. The terminal selects an MBSFN synchronization area served by the terminal and an SFA area of the MBSFN synchronization area according to the MBSFN related information sent by the network. ;

 6: The terminal sends the selected TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the unicast control entity 匪 E through the unicast subframe;

 6 04, 匪 E save the TA identifier of the MBSFN synchronization area selected by the terminal and the SFA identifier of the MBSFN synchronization area;

 After the terminal enters the MBSF synchronization area, because the mixed cells of the area have the same MBMS TA identity, the terminal does not initiate location update in the area; if the SFA of the terminal changes, the SFA identifier corresponding to the terminal is sent to MME. The reason for the change of the SFA in which the terminal is located may be that the control entity on the network side adjusts the SFA area that provides the service, or the terminal moves into the new SFA coverage area, or selects a new service for the terminal. The SFA area is different from the SFA area before selection.

 6 05, 匪 E receives the paging message of the terminal, if there is currently unicast resource available for the transmission of the paging message, then 匪E selects to send the paging message to the eNB by using the unicast subframe; go to step 61 1 a ; If the unicast resource is not used to send the paging message, the MME selects to send the paging message by using the multicast subframe, and step 606 is performed;

 6 06, 匪 E, after receiving the paging message, obtain the SSF identifier of the MBSFN synchronization area corresponding to the terminal by querying the SFA identifier of the MBSFN synchronization area selected by the terminal;

 The MME sends the SFA identifier of the MBSFN synchronization area to the MCE, and queries the eNB corresponding to the SFA identifier of the MBSFN synchronization area.

 6 08. The MCE sends the SFA identifier corresponding to the eNB information of the MBSFN synchronization area to the eNB E.

 6 09. The MME sends, to the EMBMS GW, a paging message that carries the eNB information corresponding to the SSF identifier of the MBSFN synchronization area.

 6 1 0, the EMBMS GW sends a paging message to the eNB corresponding to the MBSFN synchronization area SFA, and performs

61 1 b;

The eNB receives the paging message sent by the eNB, and sends a paging message on the unicast subframe in the multiple cells corresponding to the eNB. 6 1 1 b, after receiving the paging message sent by the EMBMS GW, the eNB sends a paging message on the multicast subframe in multiple cells corresponding to the eNB.

 It should be noted that the terminal may also send the TA identifier and the SFA identifier of the MBSFN synchronization area to the unicast control entity HSS through the unicast subframe, and the HSS saves the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area. For the same reason, the terminal may also send the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the multicast control entity MCE or the EMBMS GW, and the MCE or the EMBMS GW saves the TA identifier and the MBSFN synchronization area of the MBSFN synchronization area. The SFA logo.

 It can be seen that, in the scenario of the hybrid cell, the network side sends the identification information of each MBSFN synchronization area to the terminal, and the network side receives the identification information of the MBSFN synchronization area selected by the terminal, and the identification information is based on the terminal. The TA identity information of the MBSFN synchronization area is selected as the identifier information of the MBSFN synchronization area served by the terminal, and the identifier information includes the TA identifier information of the MBSFN synchronization area selected by the terminal and the SFA identifier information of the MBSFN synchronization area, and the network side selects according to the selection. The identification information of the MBSFN synchronization area, the paging message is sent in the SFA area of the MBSFN synchronization area smaller than the MBSFN synchronization area in the MBSFN synchronization area, thereby reducing the paging delay by using one paging, and more effective Paging to the terminal. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management.

 In the following, the scenario of the hybrid cell is taken as a reference point, and E is used to assign a TA identifier to each MBS FN synchronization area, and 匪E uses the MBSFN synchronization area as the TAMS for the MBMS service management, and the MME compares the TA identifier of the unicast network. The area corresponds to the area corresponding to the TA identifier of the MBMS service, and the appropriate range paging terminal is selected according to the comparison result. Referring to FIG. 7, a sixth embodiment of a paging message sender in the example of the present invention specifically includes:

 7 01 Sending a message to the terminal E assigns a TA identifier to each MBSFN synchronization area;

 7 02. The terminal selects an MBSFN synchronization area serving the terminal and an SFA area of the MBSFN synchronization area according to the MBMS related information sent by the terminal.

 7 03, the terminal sends the selected TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the MME through the unicast subframe;

 7 04. E save the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area after the terminal is selected;

When the terminal enters the MBSF synchronization area, the mixed cells in the area have the same MBMS. The TA identifies that the terminal does not initiate location update in the area; if the SFA in which the terminal is located changes, the terminal sends the corresponding SFA identifier to the control entity on the network side. The SFA in the terminal is changed. The reason may be that the control entity on the network side adjusts the SFA area that provides the service, or the terminal moves into the new SFA coverage area, or selects a new service for the terminal. The SFA area is different from the SFA area before selection.

 The specific steps for sending a paging message are as follows:

 7 0, 匪 E receives the paging message for the terminal, and obtains the SFA identifier of the MBSFN synchronization area corresponding to the terminal, and obtains the SFA identifier of the MBSFN synchronization area corresponding to the terminal.

 7 06. The MME sends the SFA identifier corresponding to the terminal to the MCE, and queries the eNB information corresponding to the SFA identifier of the MBSFN synchronization area.

 7 07. The MCE sends the eNB information corresponding to the SFA identifier of the MBSFN synchronization area to the MME.

7 08. E compares the number of eNBs corresponding to the SFA with the number of eNBs corresponding to the TA identifier in the terminal unicast network. If the number of eNBs corresponding to the SFA is smaller than the number of eNBs corresponding to the TAs in the terminal unicast network, the paging message is sent in the SFA area, and the process proceeds to step 71 1 b; otherwise, the paging message is sent from the MN to the unicast. The eNB corresponding to the TA in the network proceeds to step 709;

 7 09, E sends the paging message corresponding to the eNB information of the SFA identifier of the MBSFN synchronization area to the EMBMS G;

 7 1 0, the paging is sent by the EMBMS GW to all eNBs in the SFA;

 After receiving the paging message sent by the EMBMS GW, the eNB sends a paging message on the multicast subframe in multiple cells corresponding to the eNB;

 7 1 1 b, the eNB receives the paging message sent by the eNB, and sends a paging message on the unicast subframe in the multiple cells corresponding to the eNB.

 It should be noted that the terminal may also send the TA identifier and the SFA identifier of the MBSFN synchronization area to the unicast control entity HSS through the unicast subframe, and the HSS saves the TA identifier and the SFA identifier of the MBSFN synchronization area. Similarly, The terminal may send the TA identifier and the SFA identifier of the MBSFN synchronization area to the multicast control entity MCE or the EMBMS GW, and the MCE or the EMBMS GW saves the TA identifier and the SFA identifier of the MBSFN synchronization area.

It can be seen from the foregoing technical solution that, in the scenario of the hybrid cell, the network side sends the identifier information of each MBSFN synchronization area to the terminal, and the identifier of the MBSFN synchronization area selected by the network side receiving terminal And the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area, where the identifier information includes the TA identifier information of the MBSFN synchronization area selected by the terminal, and the MBSFN synchronization area. SFA identification information, the network side sends a paging message in the SFA area of the MBSFN synchronization area smaller than the MBSFN synchronization area in the MBSFN synchronization area according to the selected identification information of the MBSFN synchronization area, thereby adopting one paging, reducing The paging delay is delayed and more efficient paging to the terminal. After the terminal enters the MBSF synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management.

 Correspondingly, the embodiment of the present invention further provides a device for sending a paging message. Referring to FIG. 8, FIG. 8 is a schematic structural diagram of a device for sending a paging message according to an embodiment of the present invention, which may include:

 a sending module 801, configured to send TA identifier information of each MBSFN synchronization area;

 The receiving module 802 is configured to receive the identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area sent by the sending module.

 The receiving module is specifically configured to receive the TA identifier of the MBSFN synchronization area selected by the terminal, or receive the TA identifier information of the MBSFN synchronization area selected by the terminal, and the SFA identifier information of the MBSFN synchronization area; the identifier information is the terminal according to the sending module. The TA identification information of the transmitted MBSFN synchronization area is selected as the identification information of the MBSFN synchronization area served by the terminal.

 The processing module 803 is configured to send a paging message by selecting an appropriate range in the MBSFN synchronization area according to the identifier information of the selected MBSFN synchronization area.

 The processing module further includes:

 The identification module 8031 is configured to identify that the identifier information is a TA identifier of the MBSFN synchronization area, or a TA identifier and an SFA identifier of the MBSFN synchronization area;

 The sending module 8032 is configured to select a synchronization area of the MBSFN or select an SFA area of the MBSFN synchronization area to send a paging message according to the result of the identification of the identification module;

 The identification module may be further configured to: identify an area corresponding to the TA identifier of the unicast network and an area corresponding to the SFA identifier of the MBMS service;

The sending module may be further configured to send a paging message in an area corresponding to the SFA identifier of the MBMS service or send a paging message in a corresponding area of the TA identifier of the unicast network according to the identification result of the identification module. Further, the device further includes:

 The allocation module 804 is configured to allocate a TA identifier of the MBSFN synchronization area for each MBSFN synchronization area.

 The processing module 805 is configured to save the received TA identifier of the MBSFN synchronization area, or the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area, in the unicast control entity, or the received MFSFN synchronization area i Or the TA identifier, or the TA identifier and the SFA identifier of the MBSFN synchronization area i, are stored in the multicast control entity; or the network side saves the received TA of the MBSFN synchronization area in the unicast control entity and the multicast control entity respectively The SFA identifier of the received MBSFN synchronization area is saved in the multicast control entity.

 The network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is that the terminal selects the terminal service according to the TA identifier information of the MBSFN synchronization area. The identification information of the MBSFN synchronization area is configured to select a suitable range to send a paging message in the MBSFN synchronization area according to the identification information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, since the NffiMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of the location management, and uses one paging, minus Small paging delay.

 Correspondingly, the embodiment of the present invention further provides a user equipment. Referring to FIG. 9, the user equipment may include:

 The receiving module 901 is configured to receive, by the network side, TA identifier information that is allocated for each MBSFN synchronization area;

 a selecting module 902, configured to select, according to the TA identifier information of the MBSF synchronization area, an MBSFN synchronization area serving the terminal;

 The sending module 903 is configured to send identifier information of the selected MBSFN synchronization area.

 The identifier information of the selected MBSFN synchronization area may be the TA identifier information of the MBSFN synchronization area selected by the terminal; or the TA identifier information of the MBSFN synchronization area selected by the terminal and the SFA identifier information of the MBSFN synchronization area.

The sending module may be configured to: send a TA identifier of the MBSFN synchronization area to the unicast control entity; or send the TA identifier and the SFA identifier of the MBSFN synchronization area to the unicast control entity or the multicast control entity; or to the unicast control entity And the multicast control entity sends the TA identifier and the SFA identifier of the MBSFN synchronization area. The network side sends the identifier information of each MBSFN synchronization area to the terminal, and the network side receives the TA identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is selected by the terminal according to the TA identifier information of the MBSFN synchronization area as the terminal month. The identification information of the MBSFN synchronization area of the service transmits a paging message by selecting an appropriate range in the MBSFN synchronization area according to the identification information of the selected MBSFN synchronization area. After the terminal enters the MBSFN synchronization area, since the MBMS dedicated cells in the area all have the same TA identity, the terminal does not need to initiate location update in the MBSFN synchronization area, which reduces the complexity of location management and uses one page at a time. The paging delay is reduced.

 A person of ordinary skill in the art may understand that all or part of the steps of the foregoing embodiments may be completed by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the storage medium may include : R0M, RAM, disk or CD, etc.

 It should be noted that, for the foregoing various method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not subject to the described action sequence. Limitations, as certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

 In the above embodiments, the descriptions of the various embodiments are focused on, and the details that are not detailed in an embodiment can be referred to the related descriptions of other embodiments.

 In summary, in the technical solution of the embodiment of the present invention, the network side uses the MBSFN synchronization area as a TA, and selects an appropriate paging message sending area in the TA range, which can reduce the complexity of the location management. The paging delay is reduced by using one page.

 The foregoing description of the method, apparatus, and system for transmitting a paging message provided by an embodiment of the present invention is only for helping to understand the method and core idea of the present invention; and, for a person skilled in the art, The present invention is not limited by the scope of the present invention, and the scope of the present invention is not limited by the scope of the present invention.

Claims

Claim  A method for sending a paging message, comprising:  The network side sends the TA identifier information of the MBSFN synchronization area of each multimedia broadcast/multicast service single frequency network;  The network side receives the identifier information of the MBSFN synchronization area selected by the terminal; the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area;  The network side selects an appropriate range to send a paging message in the MBSFN synchronization area according to the identification information of the selected MBSFN synchronization area.  2. The method of claim 1 wherein  Before the network side sends the TA identity information of each MBSFN synchronization area, the network side further includes: the network side allocates a TA identifier for each MBSFN synchronization area.  The method according to claim 1, wherein the network side receiving the identifier information of the MBSFN synchronization area selected by the terminal includes:  The network side receives the TA identity information of the MBSFN synchronization area selected by the terminal; or the TA identity information of the MBSFN synchronization area selected by the network side receiving terminal and the SFA identification information of the MBSFN synchronization area;  The method according to claim 3, wherein, after receiving the identification information of the MBSFN synchronization area selected by the terminal, the network side further includes:  The network side stores the TA identifier of the MBSFN synchronization area selected by the terminal, or the TA identifier of the MBSFN synchronization area selected by the terminal and the SFA identifier of the MBSFN synchronization area, in the unicast control entity; or  The network side stores the TA identifier of the MFSFN synchronization area selected by the terminal, or the TA identifier and the SFA identifier of the MBSFN synchronization area selected by the terminal, in the multicast control entity; or the entity and the multicast control entity, the network The side saves the received SFA identifier of the MBSFN synchronization area selected by the terminal in the multicast control entity.  The method according to claim 3, wherein the selecting, by the network side, the paging message in the MBSFN synchronization area to select a suitable range includes: If the identifier information of the selected MBSFN synchronization area is the TA identifier of the MBSFN synchronization area, the network The network side selects the synchronization area of the MBSFN to send a paging message;  If the identifier information of the selected MBSFN synchronization area is the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area, the network side selects the SFA area of the synchronization area of the MBSFN to send a paging message.  The method according to claim 5, wherein the selecting, by the network side, the paging message in the MBSFN synchronization area to select a suitable range includes:  If the unicast resource is currently used to send the paging message, the paging message is sent by using the unicast subframe; if no unicast resource is currently used to send the paging message, the paging message is selected to be sent by using the multicast subframe. . The method according to claim 1, wherein the network side selects an appropriate range in the MBSFN synchronization area to send a paging message, including:  The network side compares the area corresponding to the TA identifier of the unicast network with the area corresponding to the SFA identifier of the MBMS/Multicast service MBMS;  If the area corresponding to the TA identifier of the unicast network is larger than the area corresponding to the SFA identifier of the MBMS service, the paging message is sent in the area corresponding to the SFA identifier of the MBMS service.  If the area corresponding to the TA identifier of the unicast network is smaller than the area corresponding to the SFA identifier of the MBMS service, the paging message is sent in the corresponding area of the TA identifier of the unicast network.  The method according to any one of claims 1 to 7, wherein the network side comprises: a mobility management MME; or  Multi-cell/multicast coordination entity MCE ; or  Multimedia Broadcast/Multicast Service Network Management EMBMS GW.  A method for transmitting a paging message, comprising: selecting, by the terminal, an MBSFN synchronization area serving as the terminal according to the TA identification information of the MBSF synchronization area;  The terminal transmits the identification information of the selected MBSFN synchronization area.  The method according to claim 9, wherein the sending, by the terminal, the identification information of the selected MBSFN synchronization area specifically includes:  The terminal sends the TA identifier information of the selected MBSFN synchronization area; or The terminal transmits the TA identity information of the selected MBSFN synchronization area and the SFA identity information of the MBSFN synchronization area. 1 1. The method according to claim 10, characterized in that it comprises  The terminal sends the TA identifier of the MBSFN synchronization area to the unicast control entity; or  The terminal sends the TA identifier of the MBSFN synchronization area and the SFA identifier of the MBSFN synchronization area to the unicast control entity or the multicast control entity; or  The terminal sends the TA identifier of the MBSFN synchronization area to the unicast control entity and the multicast control entity. The SFA identifier of the MBSFN synchronization area.  A device for transmitting a paging message, comprising:  a sending module, configured to send TA identifier information of each MBSFN synchronization area;  The receiving module is configured to receive the identifier information of the MBSFN synchronization area selected by the terminal, where the identifier information is that the terminal selects the identifier information of the MBSFN synchronization area served by the terminal according to the TA identifier information of the MBSFN synchronization area sent by the sending module. ;  And a processing module, configured to send a paging message by selecting an appropriate range in the MBSFN synchronization area according to the identifier information of the selected MBSFN synchronization area.  The device according to claim 12, further comprising:  An allocation module is configured to allocate a TA identifier of an MBSFN synchronization area for each MBSFN synchronization area. 14. Apparatus according to claim 11 wherein:  The receiving module is specifically configured to: receive a TA identifier of the MBSFN synchronization area selected by the terminal, or a TA identifier information of the MBSFN synchronization area selected by the receiving terminal, and SFA identifier information of the MBSFN synchronization area;  The device according to claim 12, further comprising:  The processing module 1 is configured to save the TA identifier of the MBSFN synchronization area selected by the terminal, or the TA identifier of the MBSFN synchronization area selected by the terminal, and the SFA identifier of the MBSFN synchronization area, in a unicast control entity, or receive the same The TA identifier of the MFSFN synchronization area selected by the terminal, or the TA identifier of the MBSFN synchronization area selected by the terminal and the SFA identifier of the MBSFN synchronization area, are stored in the multicast control entity; or the MBSFN synchronization area selected by the terminal on the network side. The TAs are respectively stored in the unicast control entity and the multicast control entity, and the received SFA identifier of the MBSFN synchronization area selected by the terminal is stored in the multicast control entity. The apparatus according to claim 12, wherein the processing module comprises: an identification module, configured to identify that the identifier information of the MBSFN synchronization area is a TA identifier of an MBSFN synchronization area, or an MBSFN synchronization The TA identifier of the area and the SFA identifier of the MBSFN synchronization area; The sending module 1 is configured to select a synchronization area of the MBSFN or select an SFA area of the MBSFN synchronization area to send a paging message according to the result of the identification of the identification module.  17. Apparatus according to claim 16 wherein:  The identification module is further configured to identify a size corresponding to an area corresponding to the TA identifier of the unicast network and an area corresponding to the SFA identifier of the MBMS service;  The sending module 1 is further configured to send a paging message in an area corresponding to the SFA identifier of the MBMS service or send a paging message in a corresponding area of the TA identifier of the unicast network according to the identification result of the identification module.  18. A user equipment, comprising:  a receiving module, configured to receive management identifier information that is sent by the network side and allocated for each MBSFN synchronization area;  a selection module, configured to select, according to management identifier information of the MBSFN synchronization area, an MBSFN synchronization area serving the terminal;  And a sending module, configured to send identifier information of the selected MBSFN synchronization area.  19. The user equipment of claim 18, wherein  The sending module is specifically configured to: send, to the unicast control entity, the TA identifier of the MBSFN synchronization area selected by the terminal; or send the TA identifier and the MBSFN synchronization area of the MBSFN synchronization area selected by the terminal to the unicast control entity or the multicast control entity. SFA identifier; or send the TA identifier of the MBSFN synchronization area selected by the terminal and the SFA identifier of the MBSFN synchronization area to the unicast control entity and the multicast control entity.