WO2013020433A1 - 一种网络切换控制方法、通信系统以及相关设备 - Google Patents
一种网络切换控制方法、通信系统以及相关设备 Download PDFInfo
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- WO2013020433A1 WO2013020433A1 PCT/CN2012/078354 CN2012078354W WO2013020433A1 WO 2013020433 A1 WO2013020433 A1 WO 2013020433A1 CN 2012078354 W CN2012078354 W CN 2012078354W WO 2013020433 A1 WO2013020433 A1 WO 2013020433A1
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- network element
- handover
- domain
- core network
- request message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/186—Processing of subscriber group data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Definitions
- the invention relates to a network switching control method, a communication system and related equipment.
- the application is submitted to the Chinese Patent Office on August 10, 2011, the application number is 201110228680.9, and the invention name is "a network switching control method, a communication system and related equipment".
- Priority of Chinese Patent Application the entire contents of which is incorporated herein by reference.
- the present invention relates to the field of communications, and in particular, to a network switching control method, a communication system, and related devices. Background technique
- HNB home base station
- femtocell base station a home base station (HNB, Home NodeB), or a femtocell base station, has become the most promising low-cost access method.
- the user equipment UE, User Equipment
- the switching mode is called Inbound Mobility to HNB.
- the approximate switching process is:
- the UE When the UE detects the HNB cell that meets the handover condition, the UE sends a measurement report to the source access network element, where the measurement report carries the CSG (Closed Subscriber Group) identifier of the HNB cell and whether the UE is a member.
- CSG Cell Subscriber Group
- the source access NE sends a handover request message to the core network element, where the handover request message includes the CSG identifier of the HNB cell and the access mode.
- the core network element according to the CSG identifier of the HNB cell in the handover request message and the UE CSG subscription information acquired from the Home Location Register (HLR, Home Subscriber Server) or the Home Subscriber Server (HSS) Ie CSG logo list)
- HLR Home Location Register
- HSS Home Subscriber Server
- the core network element may obtain the CSG identifier list from the HLR or the HSS through an attach procedure or a location update process.
- PLMN Public Land Mobile Network
- the UE finds the PLMN and/or the location area after receiving the reconfiguration message. And the routing area changes, and is ready to initiate the update process. At this time, since the CS domain service is still in progress, the location update process will be delayed. At this time, the MSC cannot obtain the new UE CSG subscription information under the PLMN; and the PS is in the location. After the update process, the UE CSG subscription information under the new PLMN will be obtained.
- CS Circuit Switching
- PS Packet Switching
- the CS domain core network element such as the Mobile Switching Center (MSC)
- the PS domain core network element such as the serving general wireless packet service support node (SGSN, Serving GPRS Support Node)
- SGSN Serving GPRS Support Node
- the SGSN can obtain the CSG identity list of the new PLMN, and the MSC location update process is delayed due to the progress of the CS domain service. Therefore, the MSC cannot obtain the CSG identity list of the new PLMN from the HLR or the HSS through the location update process. Therefore, the SGSN can successfully perform access control when receiving the handover request message, and the MSC fails to perform access control when receiving the handover request message.
- the handover request message may be sent to the HNB.
- the HNB learns that the handover involves the CS domain and the PS domain, and therefore waits for the handover request message sent by the MSC, but the MSC is connected. The incoming control has failed. Therefore, the HNB cannot receive the handover request message sent by the MSC.
- the SGSN has not expired after its timer expires.
- a handover failure message is sent to the access NE, causing the entire handover process to fail.
- aspects of the present invention provide a network handover control method, a communication system, and related equipment, which can eliminate invalid signaling in a network and improve system transmission performance.
- An aspect of the present invention provides a network handover control method, including: after detecting, by a user equipment UE, a home base station HNB, determining whether a handover occurs across a public land mobile communication network (PLMN); if it is determined that a user equipment has cross-PLMN handover, The user equipment sends a measurement report to the source access network element, where the closed subscription subscriber group CSG member indication information indicates that the user equipment is a non-member.
- PLMN public land mobile communication network
- a source access network element receives a measurement report sent by a user equipment UE, where the measurement report includes that the UE has performed a cross-land public mobile communication network PLMN An indication of the handover; the source access network element acquires a service type of the service currently being performed by the UE; if the UE is currently only performing circuit switched CS domain service, the source access network element does not switch to The flow of the HNB; or, if the UE currently performs the CS domain service and the packet switched PS domain service, the source access NE sends a first handover request message to the CS domain core network element, and sends the first handover request message to the PS domain core.
- the network switching element sends a second handover request message, where the first handover request message does not carry the information about the closed subscriber group CSG, and the second handover request message carries the CSG related information.
- Another aspect of the present invention provides a network handover control method, including: after detecting, by a user equipment UE, a home base station HNB, determining whether it has occurred across a public land mobile communication network If the cross-PLMN handover is determined, the measurement report is sent to the source access NE, where the measurement report carries an indication that the UE has performed the cross-PLMN handover.
- Another aspect of the present invention provides a network handover control method, including: a source access network element receives a measurement report sent by a user equipment UE; and the source access network element acquires a service type of a service currently being performed by the UE; The UE is currently performing the circuit switched CS domain service and the packet switched PS domain service, and the source access network element sends a handover request message to the CS domain core network element, where the handover request message includes the current handover. Instructions for multiple core domains.
- Another aspect of the present invention provides a network handover control method, including: a first CS domain core network element receives a handover request message from a source access network element; and if the handover request message includes the handover The indication information of the core network domain, the first CS domain core network element determines whether the handover request message is forwarded by the second CS domain core network element, the first CS domain core network element and the The second CS domain core network element belongs to a different public land mobile communication network PLMN; if yes, the first CS domain core network element does not perform access control, and sends a handover request message to the home base station HNB.
- a network handover control method including: a first CS domain core network element receives a handover request message from a source access network element; and if the handover request message includes the handover The indication information of the core network domain, the first CS domain core network element determines whether the handover request message is forwarded by the second CS domain core network element, the first CS domain core network element and
- a home base station HNB receives a handover request message sent by a packet switched PS domain core network element; and if the handover request message indicates that the handover involves a PS domain and The HNB initiates a feedback timer; if the HNB still does not receive the handover request message sent by the CS domain core network element before the feedback timer expires, the HNB goes to the The PS domain core network element feedback feedback acknowledgment message; the timeout period of the feedback timer is shorter than the timeout duration of the handover failure timer of the PS domain core network element.
- a user equipment including: a first detecting unit, configured to detect a home base station HNB; and a first switching determining unit, configured to determine, after the detecting unit detects the HNB, whether it has occurred a first transmission unit, configured to send a measurement report to the source access network element when the service determining unit determines that a cross-PLMN handover has occurred, and the user equipment is still performing the CS domain service, Closed sign in the measurement report
- the approximate user group CSG member indication information indicates that the user equipment is a non-member.
- an access network element including: a first receiving unit, configured to receive a measurement report sent by a user equipment UE, where the measurement report includes that the UE has performed cross-common land mobile communication An indication of a network PLMN handover; a first acquiring unit, configured to acquire a service type of a service currently being performed by the UE; and a first processing unit, configured to: when the first acquiring unit determines that the UE is currently only performing circuit switching When the CS domain service is not performed, the process of switching to the HNB is not performed; or, when the first acquiring unit determines that the UE currently performs the CS domain service and the packet switched PS domain service at the same time, sending the first to the CS domain core network element And switching the request message, and sending a second handover request message to the PS domain core network element, where the first handover request message does not carry the information about the closed subscription group CSG, and the second handover request message carries the CSG related information.
- a user equipment including: a second detecting unit, configured to detect a home base station HNB; and a second switching determining unit, configured to determine, after the second detecting unit detects the HNB, whether A second transmission unit is configured to send a measurement report to the source access network element when the second handover determination unit determines that a cross-PLMN handover has occurred, where the measurement report carries The user equipment has made an indication of a cross-PLMN handover.
- an access network element including: a second receiving unit, configured to receive a measurement report sent by a user equipment UE, and a second acquiring unit, configured to acquire a service currently being performed by the UE a second processing unit, configured to: when the second obtaining unit determines that the UE is currently performing the circuit switched CS domain service and the packet switched PS domain service, sending a handover request message to the CS domain core network element,
- the handover request message includes indication information that the handover involves multiple core domains.
- Another aspect of the present invention provides a circuit switching domain core network element, including: a third receiving unit, configured to receive a handover request message from a source access network element; and a determining unit, configured to: when the third receiving The handover request message received by the unit includes that the handover involves multiple core domains.
- a third mobile unit configured to: when the determining unit determines that the handover request message is forwarded by another circuit switched CS domain core network element, does not perform access control, and The home base station HNB sends a handover request message; the fourth receiving unit is configured to receive a handover confirmation message fed back by the HNB, and send a handover command message to the source access network element.
- a home base station including: a fifth receiving unit, configured to receive a handover request message sent by a packet switched PS domain core network element; a timing unit, configured to: when the handover request message indicates When the secondary handover involves the PS domain and the circuit switched CS domain, the feedback timer is started; the feedback unit, if the handover request message sent by the CS domain core network element is not received before the feedback timer expires, The PS domain core network element feedback feedback acknowledgement message, the timeout duration of the feedback timer is shorter than the timeout duration of the handover failure timer of the PS domain core network element.
- Another aspect of the present invention provides a communication system, including: a home base station, a core network element, and a source access network element, the communication system further including a user equipment.
- Another aspect of the present invention provides a communication system, including: a home base station and a core network element, the communication system further includes a source access network element, and a user equipment.
- Another aspect of the present invention provides a communication system comprising: a user equipment and a home base station, the communication system further comprising a source access network element, and a circuit switched domain core network element.
- Another aspect of the present invention provides a communication system, including: a user equipment, a source access network element, and a core network element, the communication system further including a home base station.
- the embodiments of the present invention have the following advantages:
- 1 is a schematic diagram of an embodiment of a network switching control method according to the present invention
- 2 is a schematic diagram of another embodiment of a network switching control method according to the present invention
- FIG. 3 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 4 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 5 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 6 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 7 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 8 is a schematic diagram of another embodiment of a network switching control method according to the present invention.
- FIG. 9 is a schematic diagram of an embodiment of a user equipment according to the present invention.
- FIG. 10 is a schematic diagram of an embodiment of an access network element according to the present invention.
- FIG. 11 is a schematic diagram of another embodiment of a user equipment according to the present invention.
- FIG. 12 is a schematic diagram of another embodiment of an access network element according to the present invention.
- FIG. 13 is a schematic diagram of an embodiment of a CS domain core network element according to the present invention.
- FIG. 14 is a schematic diagram of an embodiment of a home base station according to the present invention. detailed description
- the embodiment of the invention provides a network switching control method, a communication system and related equipment, which can eliminate invalid signaling in the network and improve system transmission performance.
- GSM Global System for Mobile Communications
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- FDMA Frequency Division Multiple Addressing
- OFDMA Orthogonal Frequency-Division Multiple Access
- SC-FDMA single carrier FDMA
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- the terminal which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
- the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
- RAN Radio Access Network
- the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
- a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
- a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
- the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
- IP Internet Protocol
- the base station can also coordinate the attribute pipe to the air interface Reason.
- the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
- the base station controller may be a base station controller (BSC) in GSM or CDMA, or a radio network controller (RNC) in WCDMA, which is not limited in the present invention.
- BSC base station controller
- RNC radio network controller
- system and “network” are often used interchangeably herein.
- the term “and/or” in this document is merely an association describing the associated object, indicating that there may be three relationships.
- ⁇ and / or B can mean: There are three cases of A, B and A, and B.
- the character " /" in this article generally means that the context is “or”. ,Relationship.
- the embodiment of the present invention can control network switching in multiple manners, which are separately described below.
- an embodiment of the network switching control method of the present invention may be as follows.
- the UE detects the HNB.
- the UE may continuously detect the nearby cell as the location moves, and the UE may detect the HNB when the UE moves to the coverage of the cell of the HNB.
- step 102 The UE determines whether a cross-PLMN handover has occurred. If not, step 103 is performed. If yes, step 104 is performed.
- the UE may prepare to initiate a handover, and then the UE may first determine whether a cross-PLMN handover has occurred.
- the handover condition in this embodiment may be: the signal strength of the current cell decreases to a certain threshold, or the signal strength of the cell of the HNB is higher than a certain threshold, etc., it is understood that the specific The switching conditions are common knowledge of those skilled in the art, and are not limited herein.
- the UE may determine whether it has cross-PLMN cutting by itself. Change:
- the UE determines whether the PLMN in the reconfiguration message received from the source access NE when the handover occurs, and/or the location area (LA, Location Area), and/or the routing area (RA, Routing Area) change, if Then, it is determined that there has been a cross-PLMN switch.
- the UE is compared to the registered PLMN and/or the registered LA and/or the registration RA.
- the UE does not find that the PLMN, LA, and RA are changed in the reconfiguration message sent by the source access NE, it indicates that no cross-PLMN handover has occurred.
- the UE determines whether the cross-PLMN handover has been performed in the present embodiment by using only one example. It can be understood that there may be more ways in the actual application, for example, the UE may generate a cross-PLMN every time. An indication flag is set locally when switching, and the specific manner is not limited herein.
- the UE may perform a normal handover procedure to switch to the cell of the HNB.
- the specific handover process is common knowledge of those skilled in the art, and is not limited herein.
- step 104 determining whether the CS domain service is still in progress, if yes, executing step 105, if not, executing step 103;
- the UE may further determine whether the CS domain service is still in progress.
- the location update process of the non-access stratum (NAS, Non-Access Stratum) is delayed, and the service does not proceed when the service is performed, so the UE can record the status.
- NAS Non-Access Stratum
- the UE determines that a cross-PLMN handover has occurred, if the location update procedure is still found to be in a delayed state, that is, the UE is still performing the CS domain service.
- the UE may have other methods to determine whether the CS domain service is still currently in use. It should be noted that, if the UE determines that the CS domain service is not currently performed, but the PS domain service is performed, the UE may also switch to the cell of the HNB according to the existing handover procedure.
- the CS domain service in this embodiment is handled by the CS domain core network element, and the PS domain service is handled by the PS domain core network element.
- the UE cross-PLMN handover occurs, and the CS domain service is still being performed after the handover, the UE cannot switch to the cell of the HNB, otherwise, a large number of invalid letters are generated between the PS domain core network element and the HNB. make.
- the CSG member indication information indicates that the UE is a non-member, so that the source access NE does not initiate the handover procedure.
- the CSG member indication information is used to indicate that the UE is a member user.
- the source access network element considers that the UE is not a member user, and naturally does not initiate the handover process.
- the indication is represented by TRUE or FALSE, TRUE is a member, and FALSE is a non-member.
- the source access network element in this embodiment may be a Radio Network Controller (RNC), or a Base Station Controller (BSC), or an evolved NodeB (eNB).
- RNC Radio Network Controller
- BSC Base Station Controller
- eNB evolved NodeB
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be an SGSN or an MME (Mobility Management Entity).
- the source access network element, the CS domain core network element, and the PS domain core network element in this embodiment may also be other network elements, which are not limited herein.
- the UE after the UE detects the ⁇ , if it determines that the cross-PLMN handover has occurred, and the CS domain service is still being performed after the handover, the UE sends a measurement report to the access NE, and the CSG member indication information indicates the UE in the measurement report. If the source access network element does not initiate a handover to the core network element, the invalid signaling between the network element of the PS domain core network and the network element can be effectively avoided, thereby improving system transmission performance. 2.
- the network switching control is performed by the UE and the source access network element:
- FIG. 2 Another embodiment of the network switching control method of the present invention may be as follows. Said.
- the source access network element receives the measurement report sent by the UE.
- the UE may continuously detect the neighboring cell as the location moves.
- the UE may detect the HNB, and then the UE may access the network element to the source.
- the source access network element may receive the measurement report sent by the UE, where the measurement report includes the CSG identifier and the member user indication, and the measurement report further includes an indication that the UE has performed the cross-PLMN handover.
- the source access NE obtains a service type of a service currently being performed by the UE.
- the source access network element After the source access network element receives the measurement report sent by the UE, if the measurement report includes that the UE has performed the indication of the cross-PLMN handover, the source access network element may obtain the service type of the service currently being performed by the UE, specifically The way to get it can be:
- the source access network element obtains the indication of reporting when the UE establishes a connection or initiates a service, or obtains a connection type with a core network of a different domain to learn the service type of the service currently being performed by the UE.
- the source access network element can also learn the service type of the service currently being performed by the UE in a more specific manner, which is not limited herein.
- the source access NE performs corresponding processing according to the service type of the service currently being performed by the UE.
- the source access network element After the source access network element obtains the service type of the service currently being performed by the UE, the source network element can perform corresponding processing according to the service type, and the specific processing manner includes:
- the source access NE does not initiate a process of switching to the HNB.
- the CS domain core network element cannot acquire the CSG of the new PLMN because the UE indicates in the measurement report that the UE has performed the cross-PLMN handover. If the switch is in the process, the source access network element may not initiate the process of switching to the HNB. For example, the switch request message may not be sent to the core network element, thereby preventing the HNB switch.
- the source access NE may send the first handover request message to the CS domain core network element and send the second to the PS domain core network element. Switch the request message.
- the source access NE sends the CS domain core network element and the PS domain core network element.
- the switch request message carries different content, and the first handover request message sent to the core network element of the CS domain does not carry the CSG related information, and the second handover request message sent to the core network element of the PS domain carries the CSG.
- the CSG related information in this embodiment includes the CSG identifier of the HNB and the cell access mode. Since the first handover request message sent by the source access NE to the core network element of the CS domain does not carry the CSG related information, the core network element of the CS domain does not perform access control, and the handover fails.
- the source access NE sends a handover request message to the PS domain core network element according to the existing handover procedure.
- the source network element can send a switch to the PS domain core network element according to the existing handover procedure, because the PS domain core network element can obtain the CSG identifier list of the new PLMN. Request the message and proceed with the subsequent switching process.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the CS domain core network element in this embodiment may be an MSC, and the PS domain core network element may be an SGSN or an MME.
- the source access network element, the CS domain core network element, and the PS domain core network element in this embodiment may also be other network elements, which are not limited herein.
- the source access network element learns from the measurement report that the UE has performed cross-PLMN During the handover, if the UE is currently only performing the CS domain service, the source access NE may not initiate the process of switching to the HNB. For example, if the handover request message is not sent to the core network element, the core network element of the PS domain can be effectively avoided. Invalid signaling between HNBs, thereby improving system transmission performance;
- the source access network element learns from the measurement report that the UE has performed the cross-PLMN handover, if the UE is currently performing the CS domain service and the PS domain service, the source access network element is sent to the CS domain core network element.
- the first handover request message does not carry CSG related information, where the CSG related information includes the CSG identifier of the HNB and the cell access mode, and the CS domain core network element does not receive the CSG related information from the source access NE, so
- the access control does not cause the handover to fail, and the invalid signaling between the core network element of the PS domain and the HNB can be effectively avoided, thereby improving the system transmission performance.
- the network switching control method in this embodiment is described from the perspective of the source access network element.
- the network switching control method in this embodiment is described from the perspective of the UE. Referring to FIG. 3, the network switching control method of the present invention is described.
- Another embodiment can be as follows.
- the UE detects the HNB.
- the UE may continuously detect the nearby cell as the location moves, and the UE may detect the HNB when the UE moves to the coverage of the cell of the HNB.
- the UE determines whether it has cross-PLMN handover, if not, step 303 is performed, and if yes, step 304 is performed;
- the UE may prepare to initiate a handover, and then the UE may first determine whether a cross-PLMN handover has occurred.
- the handover condition in this embodiment may be: the signal strength of the current cell decreases to a certain threshold, or the signal strength of the cell of the HNB is higher than a certain threshold, etc., it is understood that the specific The switching conditions are common knowledge of those skilled in the art, and are not limited herein.
- the UE may determine whether it has cross-PLMN switching by:
- the UE determines the PLMN in the reconfiguration message received from the source access NE when the handover occurs, and / or LA, and / or RA changes, and if so, it is determined that there has been a cross-PLMN switch. If the UE does not find that the PLMN, LA, and RA are changed in the reconfiguration message sent by the source access NE, it indicates that no cross-PLMN handover has occurred.
- the UE determines whether the cross-PLMN handover has been performed in the present embodiment by using only one example. It can be understood that there may be more ways in the actual application, for example, the UE may generate a cross-PLMN every time. An indication flag is set locally when switching, and the specific manner is not limited herein.
- the UE may perform a normal handover procedure to switch to the cell of the HNB.
- the specific handover process is common knowledge of those skilled in the art, and is not limited herein.
- the UE sends a measurement report to the source access NE to carry an indication that the UE has performed a cross-PLMN handover.
- the indication may add a cell to the measurement report, for example, a PLMN handover indicator.
- the means for indicating, the representation may be: if the cell is carried, it indicates that the UE has performed a cross-PLMN handover, and if the cell is not carried, it indicates that the UE does not perform cross-PLMN handover, or if the value of the cell If it is 1, it indicates that the UE has performed cross-PLMN handover. If the value of the cell is 0, it indicates that the UE does not perform cross-PLMN handover.
- the UE may further carry the indication that the UE has performed the cross-PLMN handover in the measurement report sent to the source access NE in a more specific manner, and the specific manner is not limited herein.
- the UE may carry the indication that the UE has performed the cross-PLMN handover in the measurement report sent to the source access NE, so that the source access NE can perform according to the indication. Subsequent network switching control to avoid PS domain core network elements and Invalid signaling between HNBs, thereby improving system transmission performance.
- FIG. 4 another embodiment of the network switching control method of the present invention may be as follows.
- the UE sends a measurement 4 report to the source RNC.
- the UE may continuously detect the nearby cell as the location moves, and the UE may detect the HNB when the UE moves to the coverage of the cell of the HNB.
- the UE may prepare to initiate a cell handover, and then the UE may first determine whether a cross-PLMN handover has occurred.
- the handover condition in this embodiment may be: the signal strength of the current cell decreases to a certain threshold, or the signal strength of the cell of the HNB is higher than a certain threshold, etc., it is understood that the specific The switching conditions are common knowledge of those skilled in the art, and are not limited herein.
- the UE may determine whether it has cross-PLMN switching by:
- the UE determines whether the PLMN, and/or LA, and/or RA in the reconfiguration message received from the source access NE when the handover occurs occurs, and if so, determines that a cross-PLMN handover has occurred.
- the UE does not find that the PLMN, LA, and RA are changed in the reconfiguration message sent by the source access NE, it indicates that no cross-PLMN handover has occurred.
- the UE determines whether the cross-PLMN handover has been performed in the present embodiment by using only one example. It can be understood that there may be more ways in the actual application, for example, the UE may generate a cross-PLMN every time. An indication flag is set locally when switching, and the specific manner is not limited herein.
- the CS domain core network element in the PLMN-A network is MSC-A
- the PS domain core network The element is SGSN-A
- the access network element is RNC-A.
- the UE moves to the PLMN-B network
- the UE communicates in the PLMN-B network
- the PLMN-B network The core network element of the CS domain is MSC-B
- the core network element of the PS domain is SGSN-B
- the access network element is RNC-B.
- the serving RNC becomes the RNC-B, and the RNC-B is connected to the MSC-B.
- the PLMN of the new cell is different, the UE does not initiate the location update procedure, and the MSC anchor remains unchanged as the MSC-A.
- the measurement report sent to the source RNC carries an indication that the UE has performed a cross-PLMN handover, and the indication may add a new cell to the measurement report, for example, a PLMN handover indicator is used to indicate
- the manner of the indication may be: if the cell is carried, it indicates that the UE has performed handover across the PLMN. If the cell is not carried, it indicates that the UE does not perform handover across the PLMN, or if the value of the cell is 1, It indicates that the UE has performed cross-PLMN handover. If the value of the cell is 0, it indicates that the UE has not performed cross-PLMN handover.
- the UE may further carry the indication that the UE has performed the cross-PLMN handover in the measurement report sent to the source RNC in a specific manner, which is not limited herein.
- the RNC is used as a source access network element.
- the source access network element may also be a BSC, an eNB, or the like, which is not limited herein.
- the MSC is used as the core network element of the CS domain
- the SGSN is used as the core network element of the PS domain.
- the CS domain core network element and the PS domain core are used.
- the network element may also be other types of network elements, which are not limited herein.
- the RNC sends a handover request message
- the source RNC may obtain the service type of the service currently being performed by the UE.
- the source RNC may not initiate the cut.
- the process of switching to the HNB may not initiate a handover request message to the core network element, thereby preventing the current handover, and the process ends.
- the source RNC determines that the UE is currently performing the CS domain service and the PS domain service at the same time, the source RNC sends a handover request message to the SGSN-B and the MSC-B, but the content sent is different, wherein the handover request is sent to the SGSN-B.
- the message carries the CSG identifier and the access mode, and the handover request message sent to the MSC-B does not carry the CSG identifier and the access mode.
- the SGSN-B can obtain the CSG identity list of the UE in the PLMN-B network, and can obtain the CSG identity and the access mode from the source RNC, the BJ SGSN-B can determine whether the CSG identity of the HNB is in the CSG. In the identification list, if yes, the access control passes.
- the SGSN-B sends a handover request message to the HNB through the HNB gateway.
- the HNB gateway can send a handover request message to the HNB, where the handover request message carries the CSG identifier of the HNB to request cell handover.
- the SGSN-B can directly send a handover request message to the HNB gateway, and can also send a handover request message to the HNB gateway through other core network elements, which is not limited herein.
- the MSC-B sends a handover request message to the HNB through the HNB gateway.
- the MSC-B After receiving the handover request message from the source RNC, the MSC-B forwards the handover request message to the MSC-A.
- the MSC-A determines that the handover request message does not carry the CSG identifier of the HNB and the access mode, and then does not perform the handover request message.
- the HNB gateway can directly send a handover request message to the HNB to request a cell handover, and the handover request message does not carry the CSG identifier of the HNB.
- the MSC-A may directly send a handover request message to the HNB gateway, or may send a handover request message to the HNB gateway through other core network elements, such as MSC-B. limited. 407 ⁇ 408, after receiving the handover request message sent by the SGSN-B and the MSC-B, the HNB respectively returns a handover confirmation message through the HNB gateway.
- the SGSN-B and the MSC-B respectively send a handover command message to the source RNC to perform handover.
- the source RNC when the source RNC learns from the measurement report that the UE has performed the cross-PLMN handover, if the UE is currently performing the CS domain service and the PS domain service, the source RNC sends the first handover request to the MSC-B.
- the message does not carry CSG related information.
- the CSG related information includes the CSG identifier of the HNB and the cell access mode.
- the MSC-B does not receive the CSG related information from the source access NE, so the access control is not performed. It does not cause handover failure, and can effectively avoid invalid signaling between SGSN-B and HNB, thereby improving system transmission performance.
- the network access control is performed by the source access NE and the core network element of the CS domain.
- the process of controlling the network switching between the UE and the source access NE is described above.
- another embodiment of the network switching control method of the present invention may be as follows.
- the source access network element receives the measurement 4 sent by the UE.
- the UE may continuously detect the neighboring cell as the location moves.
- the UE may detect the HNB, and then the UE may access the network element to the source.
- the source access network element may receive the measurement report sent by the UE, where the measurement report includes the CSG identifier and the member user indication.
- the source access NE obtains a service type of a service currently being performed by the UE.
- the source access NE After the source access NE receives the measurement report sent by the UE, the source access NE can obtain the service type of the service currently being performed by the UE.
- the specific acquisition mode can be:
- the source access network element obtains the indication of reporting when the UE establishes a connection or initiates a service, or obtains a connection type with a core network of a different domain to learn the service type of the service currently being performed by the UE.
- the source access network element can also be obtained in more ways.
- the type of service of the service currently being performed by the UE is not limited herein.
- the source access NE sends a handover request message to the CS domain core network element, where the handover request message includes that the handover involves multiple core domains. Instructions.
- the source access NE may send a handover request message to the CS domain core network element, where the handover request message includes that the handover involves multiple An indication of the core domain.
- the indication may be added to the handover request message, for example, the MultiCN handover indicator is used to indicate that the manner of the indication may be: if the cell is carried, it means that the handover involves multiple core domains, if not The cell indicates that the handover does not involve multiple core domains, or if the value of the cell is 1, it means that the handover involves multiple core domains. If the value of the cell is 0, it indicates This switch does not involve multiple core domains.
- the source access network element can further carry the indication that the handover involves multiple core network domains in the handover request message sent to the core network element of the CS domain in a specific manner, specifically The method is not limited here.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the CS domain core network element in this embodiment may be an MSC, and the PS domain core network element may be an SGSN or an MME.
- the UE may send a handover request message to the CS domain core network element, where the handover request message includes that the handover involves multiple cores.
- the indication of the domain enables the CS network core network element to learn that the handover involves multiple core domains, so the corresponding network handover control can be performed to avoid invalid signaling between the SGSN-B and the HNB, thereby improving the system. Transmission performance.
- the network switching control method of the present invention is described above from the perspective of the source access network element.
- the network switching control method of the present invention is described from the perspective of the CS domain core network element. Referring to FIG. 6, the network switching control method of the present invention is further described.
- An embodiment can be as follows. 601.
- the first CS domain core network element receives the handover request message from the source access NE. After the source access NE sends the handover request message, the first CS domain core network element may receive the handover request message.
- step 602 determining whether the handover request message is forwarded by the second CS domain core network element, if yes, executing step 604, if not, executing step 603;
- the handover request message may be determined by the second CS domain.
- the core network element is forwarded.
- the first CS domain core network element and the second CS domain core network element belong to different PLMNs.
- the handover request message is directly sent by the source RNC to the first CS domain core network element. That is to say, the UE does not perform the cross-PLMN handover, and the first CS-domain core network element can perform a normal handover procedure to switch to the cell of the HNB.
- the specific process is not limited herein.
- the core network element of the first CS domain does not perform access control, and sends a handover request message to the home base station HNB.
- the first CS domain core network element determines that the handover request message is forwarded by the second CS domain core network element belonging to a different PLMN, it indicates that the UE has a cross-PLMN handover, and the handover request message is new.
- the second CS domain core network element of the PLMN is forwarded.
- the network element of the core network of the first CS domain cannot obtain the CSG identifier list of the new PLMN. Therefore, if the access control is performed, the network controller of the first CS domain does not perform access control and directly accesses the HNB. Send a handover request message.
- the first CS domain core network element receives the handover confirmation message fed back by the HNB, and sends a handover command message to the source access NE.
- the first CS domain core network element After the first CS domain core network element sends a handover request message to the HNB, it can The HNB receives the handover confirm message, and then the first CS domain core network element may send a handover command message to the source access NE to perform handover.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be
- the first CS domain core network element may determine whether the handover request message is caused by the indication that the handover involves multiple core domains in the handover request message.
- the second CS domain core network element belonging to another PLMN if yes, it indicates that the UE has a cross-PLMN handover. Since the first CS domain core network element cannot obtain the CSG identifier list of the new PLMN, if the access is performed, Control, it must fail, so the first CS domain core network element does not perform access control, and directly sends a handover request message to the HNB to avoid invalid signaling between the SGSN-B and the HNB, thereby improving system transmission performance. .
- Another embodiment of the network switching control method of the present invention may be as follows.
- the HNB receives a handover request message sent by a core network element of the PS domain.
- the HNB may receive a handover request message from the core network element of the PS domain, where the handover request message carries the CSG identifier of the HNB.
- the HNB starts a feedback timer.
- the HNB If the HNB recognizes that the current handover involves both the PS domain and the CS domain in the handover request message received from the PS domain core network element, and the HNB has not received the handover request message sent by the CS domain core network element, the HNB starts the feedback. Timer.
- the HNB feeds back a handover confirmation message to the PS domain core network element.
- the HNB After the HNB starts the feedback timer, if the HNB still does not receive the handover request message sent by the CS domain core network element before the feedback timer expires, the HNB feeds back the handover confirmation message to the PS domain core network element to make the PS The domain core network element continues the subsequent switching operation.
- the timeout period of the feedback timer of the HNB is shorter than the timeout period of the handover failure timer of the core network element of the PS domain, that is, the core network element of the PS domain fails before the handover timeout fails.
- a handover confirmation message will be received from the HNB.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be
- FIG. 8 another embodiment of the network switching control method of the present invention may be as follows.
- the UE sends a measurement 4 report to the source RNC.
- the UE may continuously detect the nearby cell as the location moves, and the UE may detect the HNB when the UE moves to the coverage of the cell of the HNB.
- the UE may prepare to initiate a cell handover, and the UE may send a measurement report to the source RNC, where the measurement report includes the CSG identifier of the HNB and the member indication information of the UE.
- the RNC is used as a source access network element.
- the source access network element may also be a BSC, an eNB, or the like, which is not limited herein.
- the MSC is used as the core network element of the CS domain
- the SGSN is used as the core network element of the PS domain.
- the CS domain core network element and the PS domain core are used.
- the network element may also be other types of network elements, which are not limited herein.
- the RNC sends a handover request message;
- the source RNC after receiving the measurement report sent by the UE, sends a handover request message to the SGSN-B and the MSC-B, and the content of the transmission is the same, including the CSG identifier of the HNB and the access mode.
- the SGSN-B can obtain the CSG identity list of the UE in the PLMN-B network, and can obtain the CSG identity of the HNB and the access mode from the source RNC, the BJ SGSN-B can determine whether the CSG identity of the HNB is in the CSG. In the identification list, if yes, the access control passes.
- the MSC-A fails to obtain the CSG identity list of the UE in the PLMN-B network.
- the access control of the MSC-A fails.
- a handover request message is sent to the HNB.
- the SGSN-B sends a handover request message to the HNB through the HNB gateway.
- the HNB gateway can send a handover request message to the HNB, where the handover request message carries the CSG identifier of the HNB to request cell handover.
- the HNB starts a feedback timer.
- the HNB When the HNB receives the handover request message from the core network element of the PS domain, the HNB recognizes that the handover involves the PS domain and the CS domain, and the HNB has not received the handover request message sent by the MSC, and the HNB starts the feedback timer.
- the feedback timer expires.
- the HNB sends a handover confirmation message to the SGSN-B through the HNB gateway.
- the HNB feeds back the handover confirmation message to the SGSN-B, so that the SGSN-B continues the subsequent handover operation.
- the timeout duration of the feedback timer of the HNB is shorter than the timeout duration of the handover failure timer of the SGSN-B, that is, the SGSN-B receives the handover from the HNB before the handover timeout fails. Confirm the message. 810. After receiving the handover confirmation message replied by the HNB, the SGSN-B sends a handover command message to the source RNC to perform handover.
- the HNB when the HNB receives the handover request message from the PS domain core network element, the HNB recognizes that the current handover involves the PS domain and the CS domain, and if the HNB has not received the handover request message sent by the CS domain core network element.
- the HNB starts the feedback timer. If the HNB still does not receive the handover request message sent by the network element of the CS domain core network before the feedback timer expires, the HNB feeds back the handover confirmation message to the PS domain core network element, so that The PS domain core network element continues the subsequent handover operation.
- the timeout period of the feedback timer is shorter than the timeout period of the handover failure timer of the PS domain core network element. Therefore, the PS domain core network element fails to switch timeout.
- the handover acknowledgement message is received from the HNB, so that invalid signaling between the core network element of the PS domain and the HNB can be avoided, thereby improving system transmission performance.
- an embodiment of the user equipment of the present invention may be as follows.
- a first detecting unit 901, configured to detect an HNB
- the first handover determining unit 902 is configured to determine, after the detecting unit 901 detects the HNB, whether a cross-PLMN handover has occurred.
- the first sending unit 904 is configured to: when the first handover determining unit 902 determines that a cross-PLMN handover has occurred, and the user equipment is still performing the CS domain service, send a measurement report to the source access NE, where the CSG member indication is in the measurement report.
- the information indicates that the UE is a non-member.
- the service judging unit 903 is configured to: when the first handover judging unit 902 determines that the PLMN has occurred to facilitate understanding, the following describes the contact of each unit in the user equipment in this embodiment by using a specific example:
- the first detecting unit 901 can continuously detect the nearby cell as the UE moves to the cell coverage range of the HNB, and the first detecting unit The HNB can be detected by 901.
- the UE may prepare to initiate a cell handover, and then the first handover determining unit 902 may first determine whether it has crossed the PLMN handover.
- the handover condition in this embodiment may be: the signal strength of the current cell decreases to a certain threshold, or the signal strength of the cell of the HNB is higher than a certain threshold, etc., it is understood that the specific The switching conditions are common knowledge of those skilled in the art, and are not limited herein.
- the manner in which the first handover determining unit 902 determines whether the UE has changed across the PLMN is similar to the content described in the foregoing step 102 in the embodiment shown in FIG. 1, and details are not described herein again.
- the UE may perform a normal handover procedure to switch to the cell of the HNB.
- the specific handover process is common knowledge of the person skilled in the art, and is not limited herein.
- the service judging unit 903 may further determine whether the CS domain service is still currently in progress.
- the UE cross-PLMN handover occurs, and the CS domain service is still being performed after the handover, the UE cannot switch to the cell of the HNB, otherwise, a large number of invalid letters are generated between the PS domain core network element and the HNB. make.
- the first sending unit 904 indicates that the UE is a non-member in the measurement report reported to the source access NE, so that the source access NE does not initiate the handover procedure.
- the CSG member indication information is used to indicate that the UE is a member user.
- the source access network element considers that the UE is not a member user, and naturally does not initiate the handover process.
- the indication is represented by TRUE or FALSE, TRUE is a member, and FALSE is a non-member.
- the first sending unit 904 sends a measurement report to the access network element, and the CSG member indication information in the measurement report indicates that the UE is a non-member, and the source access network element does not go to the CS domain core network.
- the network element initiates the handover, the invalid signaling between the core network element of the PS domain and the HNB can be effectively avoided, thereby improving system transmission performance.
- an embodiment of the access network element of the present invention may be as follows.
- the first receiving unit 1001 is configured to receive a measurement report sent by the user equipment UE, where the measurement report includes an indication that the UE has performed a cross-PLMN handover of the public land mobile communication network.
- the first obtaining unit 1002 is configured to acquire the current UE.
- the first processing unit 1003 configured to: when the first obtaining unit 1002 determines that the UE is currently only performing circuit switched CS domain services, does not initiate a process of switching to the HNB; or, when the An obtaining unit 1002 determines that the UE is currently performing the CS domain service and the packet switched PS domain service, and sends a first handover request message to the CS domain core network element, and sends a second handover request message to the PS domain core network element.
- the first handover request message does not carry the information about the closed subscriber group CSG, and the second handover request message carries the CSG related information.
- the CSG related information in this embodiment includes the CSG identifier of the HNB and the cell access mode.
- the following describes the connection between each unit in the access network element in this embodiment by using a specific example:
- the UE may continuously detect the neighboring cell as the location moves.
- the UE may detect the HNB, and then the UE may access the network element to the source.
- the first receiving unit 1001 may receive the measurement report sent by the UE, where the measurement report includes the CSG identifier and the member user indication, and the measurement report further includes an indication that the UE has performed the cross-PLMN handover.
- the first acquiring unit 1002 may obtain the service type of the service currently being performed by the UE, specifically The way to get it can be:
- the first processing unit 1003 may perform corresponding processing according to the service type, and the specific processing manner includes:
- the first processing unit 1003 does not initiate a process of switching to the HNB.
- the UE may not obtain the CSG identity list of the new PLMN because the UE indicates that the UE has performed the cross-PLMN handover in the measurement report, so the handover fails, so the first A processing unit 1003 may not initiate a process of switching to the HNB.
- the handover request message may not be initiated to the core network element, thereby preventing the current HNB handover.
- the first processing unit 1003 may send the first handover request message to the CS domain core network element and send the second to the PS domain core network element. Switch the request message.
- the first processing unit 1003 sends the CS domain core network element and the PS domain core network element.
- the switch request message carries different content
- the first handover request message sent to the core network element of the CS domain does not carry the CSG related information
- the second handover request message sent to the core network element of the PS domain carries the CSG.
- the CSG related information in this embodiment includes the CSG identifier of the HNB and the cell access mode. Since the first switching request message sent by the first processing unit 1003 to the CS domain core network element does not carry the CSG related information, the CS domain core network element does not perform access control, and does not cause the handover to fail.
- the first processing unit 1003 follows the current Some handover procedures send a handover request message to the PS domain core network element.
- the first processing unit 1003 can send a handover to the PS domain core network element according to the existing handover procedure, because the PS domain core network element can obtain the CSG identification list of the new PLMN. Request the message and proceed with the subsequent switching process.
- the access network element in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be
- the access network element, the CS domain core network element, and the PS domain core network element in this embodiment may be other network elements, which are not limited herein.
- the first receiving unit 1001 learns from the measurement report that the UE has performed the cross-PLMN handover, if the UE is currently only performing the CS domain service, the first processing unit 1003 may not initiate the process of switching to the HNB. Therefore, the invalid signaling between the core network element of the PS domain and the HNB can be effectively avoided, thereby improving system transmission performance;
- the first receiving unit 1001 learns from the measurement report that the UE has performed the cross-PLMN handover, if the UE is currently performing the CS domain service and the PS domain service, the first processing unit 1003 is sent to the CS domain core network element.
- the first handover request message does not carry the CSG related information, where the CSG related information includes the CSG identifier of the HNB and the cell access mode, and the CS domain core network element does not receive the CSG related information from the source access NE, so
- the access control does not cause the handover to fail, and the invalid signaling between the core network element of the PS domain and the HNB can be effectively avoided, thereby improving the system transmission performance.
- FIG. 11 another embodiment of the user equipment of the present invention may be as follows.
- a second detecting unit 1101, configured to detect a home base station HNB
- the second handover determining unit 1102 is configured to determine, after the second detecting unit 1101 detects the HNB, whether the handover occurs across the PLMN across the public land mobile communication network;
- the second sending unit 1103 is configured to: when the second handover determining unit 1102 determines that a cross-PLMN handover occurs, send a measurement report to the source access NE, where the measurement report carries the user equipment. An indication of a cross-PLMN handover has been made.
- the second detecting unit 1101 can continuously detect the nearby cell as the UE moves to the cell coverage of the HNB, and the second detecting unit 1101 can detect the HNB.
- the UE may prepare to initiate a cell handover, and then the second handover determining unit 1102 may first determine whether the UE has cross-PLMN handover.
- the handover condition in this embodiment may be: the signal strength of the current cell decreases to a certain threshold, or the signal strength of the cell of the HNB is higher than a certain threshold, etc., it is understood that the specific The switching conditions are common knowledge of those skilled in the art, and are not limited herein.
- the manner in which the second handover determining unit 1102 determines whether the UE has changed across the PLMN is similar to the content described in the foregoing step 302 in the embodiment shown in FIG. 3, and details are not described herein again.
- the UE may perform a normal handover procedure to switch to the cell of the HNB.
- the specific handover process is common knowledge of the person skilled in the art, and is not limited herein.
- the second sending unit 1103 when transmitting the measurement report to the source access NE, carries an indication that the UE has performed cross-PLMN switching.
- the indication may be added to the measurement report, for example, a PLMN handover indicator is used to indicate that the manner of the indication may be: if the cell is carried, it indicates that the UE has performed a cross-PLMN handover, if the message is not carried.
- the UE indicates that the UE does not perform cross-PLMN handover, or if the value of the cell is 1, it indicates that the UE has performed handover across PLMN. If the value of the cell is 0, it indicates that the UE does not perform cross-PLMN handover.
- the second sending unit 1103 can further carry the indication that the UE has performed the cross-PLMN handover in the measurement report sent to the source access NE in more manners. limited.
- the second sending unit 1103 may carry an indication that the UE has performed the cross-PLMN handover in the measurement report sent to the source access NE, so that The source access network element can perform subsequent network handover control according to the indication to avoid invalid signaling between the PS domain core network element and the HNB, thereby improving system transmission performance.
- another embodiment of the access network element of the present invention may be as follows.
- a second receiving unit 1201 configured to receive a measurement report sent by the user equipment UE, a second acquiring unit 1202, configured to acquire a service type of a service currently being performed by the UE, and a second processing unit 1203, configured to use the second acquiring unit
- the unit 1202 determines that the UE is currently performing the circuit switched CS domain service and the packet switched PS domain service, and sends a handover request message to the CS domain core network element, where the handover request includes an indication that the handover involves multiple core domains. information.
- the UE may continuously detect the neighboring cell as the location moves.
- the UE may detect the HNB, and then the UE may access the network element to the source.
- the second receiving unit 1201 may receive the measurement report sent by the UE, where the measurement report includes the CSG identifier and the member user indication.
- the second obtaining unit 1202 may obtain the service type of the service currently being performed by the UE, specifically The way to get it can be:
- the source access network element obtains the indication of reporting when the UE establishes a connection or initiates a service, or obtains a connection type with a core network of a different domain to learn the service type of the service currently being performed by the UE. It can be understood that, in an actual application, the source access network element can also learn the service type of the service currently being performed by the UE in a more specific manner, which is not limited herein.
- the second processing unit 1203 may send a handover request message to the CS domain core network element, where the handover request message includes that the handover involves multiple An indication of the core domain.
- the indication may be added to the handover request message, for example, the MultiCN handover indicator is used to indicate that the manner of the indication may be: if the cell is carried, it means that the handover involves multiple core domains, if not The cell indicates that the handover does not involve multiple core domains, or if the value of the cell is 1, it means that the handover involves multiple core domains. If the value of the cell is 0, it indicates This switch does not involve multiple core domains.
- the second processing unit 1203 may further carry, in a handover request message sent to the core network element of the CS domain, an indication that the handover involves multiple core domains, specifically The method is not limited here.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be
- the second processing unit 1203 may send a handover request message to the CS domain core network element, where the handover request message includes the current
- the indication of the multiple core network domains is switched, so that the CS network core network element learns that the handover involves multiple core network domains, so the corresponding network handover control can be performed to avoid invalid signaling between the SGSN-B and the HNB. , thereby improving system transmission performance.
- an embodiment of the CS domain core network element of the present invention may be as follows.
- the third receiving unit 1301 is configured to receive a handover request message from the source access network element, where the determining unit 1302 is configured to determine, when the handover request message includes the indication information related to the multiple core network domains. Whether the request message is exchanged by another circuit for the CS domain core network
- the network element is forwarded, and the CS domain core network element and the other CS domain core network element belong to different public land mobile communication networks PLMN;
- the third processing unit 1303 is configured to: when the determining unit 1302 determines that the handover request message is forwarded by another circuit switched CS domain core network element, does not perform access control, and sends a handover request to the home base station HNB. Message
- the fourth receiving unit 1304 is configured to receive a handover confirmation message fed back by the HNB, and send a handover command message to the source access network element.
- the third receiving unit 1301 may receive the handover request message.
- the determining unit 1302 may determine whether the handover request message is by another CS domain. The core network element is forwarded.
- the CS domain core network element and the other CS domain core network element belong to different PLMNs.
- the determining unit 1302 determines that the handover request message is not forwarded by another CS domain core network element, it indicates that the handover request message is directly sent by the source RNC to the self, that is, the UE does not cross-PLMN handover,
- the core network element of the CS domain can perform a normal handover procedure to switch to the cell of the HNB. The specific process is not limited herein.
- the determining unit 1302 determines that the handover request message is forwarded by another CS domain core network element, it indicates that the UE has a cross-PLMN handover, and the handover request message is forwarded by the CS domain core network element of the new PLMN. Come.
- the core network element of the CS domain cannot obtain the CSG identifier list of the new PLMN. Therefore, if the access control is performed, the third processing unit 1303 does not perform access control, and directly sends a handover request message to the HNB. . After the third processing unit 1303 sends the handover request message to the HNB, the fourth receiving unit 1304 may receive the handover confirmation message from the HNB, and then the CS domain core network element may send a handover command message to the source access NE to perform Switch.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be an SGSN.
- the determining unit 1302 may determine whether the handover request message is The CS domain core network element belonging to another PLMN, if yes, it indicates that the UE has a cross-PLMN handover. Since the core network element of the CS domain cannot obtain the CSG identifier list of the new PLMN, if access control is performed, The third processing unit 1303 does not perform access control, and directly sends a handover request message to the HNB to avoid invalid signaling between the SGSN-B and the HNB, thereby improving system transmission performance.
- an embodiment of the home base station of the present invention may be as follows.
- the fifth receiving unit 1401 is configured to receive a handover request message sent by the network element of the packet switched PS domain core network;
- the timing unit 1402 is configured to start a feedback timer when the handover request message indicates that the handover involves the PS domain and the circuit switched CS domain;
- the feedback unit 1403 if the handover request message sent by the core network element of the CS domain is not received before the feedback timer expires, the handover confirmation message is fed back to the core network element of the PS domain, and the timeout period of the feedback timer is The timeout period of the handover failure timer that is shorter than the core network element of the PS domain.
- the fifth receiving unit 1401 may receive a handover request message from the PS domain core network element, where the handover request message carries the CSG identifier of the HNB. If the fifth receiving unit 1401 identifies that the current handover involves both the PS domain and the CS domain in the handover request message received from the PS domain core network element, and the HNB has not received the handover request message sent by the CS domain core network element, Then timing unit 1402 starts a feedback timer.
- the timing unit 1402 After the timing unit 1402 starts the feedback timer, if the HNB still does not receive the handover request message sent by the CS domain core network element before the feedback timer expires, the feedback unit 1403 feeds back the handover confirmation message to the PS domain core network element. So that the PS domain core network element continues the subsequent handover operation.
- the timeout period of the feedback timer of the HNB is shorter than the timeout period of the handover failure timer of the core network element of the PS domain, that is, the core network element of the PS domain fails before the handover timeout fails.
- a handover confirmation message will be received from the HNB.
- the source access NE in this embodiment may be an RNC, or a BSC, or an eNB.
- the core network element of the CS domain in this embodiment may be an MSC, and the core network element of the PS domain may be an SGSN.
- the fifth receiving unit 1401 when receiving the handover request message from the PS domain core network element, identifies that the current handover involves both the PS domain and the CS domain, if the HNB has not received the CS domain core network element transmission.
- the switching request message is sent by the timing unit 1402. If the HNB still does not receive the handover request message sent by the network element of the CS domain core network before the feedback timer expires, the feedback unit 1403 sends the handover request message to the PS domain core network.
- the element feedback feedback acknowledgement message so that the PS domain core network element continues the subsequent handover operation, because the timeout period of the feedback timer is shorter than the timeout period of the handover failure timer of the PS domain core network element, therefore, the PS domain
- the core network element receives the handover confirmation message from the HNB before the handover timeout fails. Therefore, the invalid signaling between the core network element of the PS domain and the HNB can be avoided, thereby improving the system transmission performance.
- a communication system in this embodiment includes: a home base station, a core network element, and a source access network element; and the communication system further includes the user equipment in the embodiment shown in FIG.
- Another communication system in this embodiment includes: a home base station and a core network element, and communication
- the system also includes the source access network element in the embodiment shown in FIG. 10 above, and the user equipment in the embodiment shown in FIG.
- Another communication system in this embodiment includes: a user equipment and a home base station; the communication system further includes a source access network element in the embodiment shown in FIG. 12, and the foregoing embodiment in FIG. Circuit switched domain core network element.
- Another communication system in this embodiment includes: a user equipment, a source access network element, and a core network element; the communication system further includes a home base station in the embodiment shown in FIG. 14 described above.
- the disclosed systems, devices, and methods may be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit is implemented in the form of a software functional unit and sold as a separate product When sold or used, it can be stored on a computer readable storage medium.
- the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .
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Abstract
本发明实施例公开了一种网络切换控制方法、通信系统以及相关设备,能够消除网络中的无效信令,提高系统传输性能。本发明实施例方法包括:用户设备UE检测到家庭基站HNB之后,判断自身是否发生过跨公用陆地移动通信网PLMN切换;若确定用户设备发生过跨PLMN切换,且仍在进行CS域业务,则用户设备向源接入网元发送测量报告,所述测量报告中闭合签约用户组CSG成员指示信息表示所述用户设备为非成员。本发明实施例还提供一种通信系统以及相关设备。本发明实施例能够有效消除网络中的无效信令,提高系统传输性能。
Description
一种网络切换控制方法、 通信系统以及相关设备 本申请要求于 2011 年 08 月 10 日提交中国专利局、 申请号为 201110228680.9、 发明名称为"一种网络切换控制方法、 通信系统以及相关 设备"的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种网络切换控制方法、 通信系统以 及相关设备。 背景技术
随着移动通信技术的发展, 用户需求越来越呈现出多样化。 为了满足 用户多样化的需求, 家庭室内覆盖基站和企业级的内部覆盖基站, 以及其 他一些私有网络应运而生。 例如家庭基站(HNB, Home NodeB ), 或称毫 微微蜂窝基站等, 已经成为目前最有潜力的低成本接入方式。
现有技术中, 用户设备( UE , User Equipment )可以从宏小区切换到 HNB小区, 这种切换方式叫做 Inbound Mobility to HNB, 大致的切换过程 为:
( 1 ) UE检测到满足切换条件的 HNB小区时, 向源接入网元发送测量 报告, 该测量报告中携带有 HNB 小区的闭合签约用户组 (CSG, Closed Subscriber Group )标识以及 UE是否为成员用户的指示信息;
( 2 )源接入网元向核心网网元发送切换请求消息, 该切换请求消息中 包含 HNB小区的 CSG标识以及接入模式;
( 3 )核心网网元根据该切换请求消息中的 HNB小区的 CSG标识以及 从归属位置寄存器( HLR, Home Location Register )或归属位置服务器( HSS, Home Subscriber Server )获取的 UE CSG签约信息 (也即 CSG标识列表)
进行接入控制, 如果接入控制通过, 则 UE可以切换到 HNB。
需要说明的是, 核心网网元可以通过附着流程或者是位置更新流程从 HLR或 HSS获取到 CSG标识列表。
但是,当 UE进行了跨公用陆地移动通信网 ( PLMN, Public Land Mobile Network )切换之后, 在新的 PLMN小区中向 HNB小区进行切换时, 则可 能会产生如下的情况:
若 UE在切换到新的 PLMN小区之后仍同时进行电路交换( CS, Circuit Switching )域以及分组交换(PS, Packet Switching )域的业务, UE在收到 重配消息后发现 PLMN和 /或位置区域和 /或路由区域发生变化,而准备发起 更新流程, 此时由于 CS域业务仍在进行, 所以将延迟位置更新流程, 此时 MSC无法获得新的 PLMN下 UE CSG签约信息; 而 PS在进行位置更新流 程后, 将获得新的 PLMN下 UE CSG签约信息。
在新的 PLMN小区中向 HNB 'J、区进行切换时, CS域核心网网元, 例 如移动交换中心 (MSC, Mobile Switching Center ) 以及 PS域核心网网元, 例如服务通用无线分组业务支持节点( SGSN, Serving GPRS Support Node ), 都可以从接入网元收到包含 HNB小区的 CSG标识以及接入模式的切换请 求消息。
SGSN可以获取到新的 PLMN的 CSG标识列表, 而由于 CS域业务的 进行, 使得 MSC的位置更新流程被延迟, 因此 MSC无法通过位置更新流 程从 HLR或 HSS获取到新的 PLMN的 CSG标识列表,所以 SGSN在接收 到切换请求消息时执行接入控制能够成功, 而 MSC在接收到切换请求消息 时执行接入控制却会失败。
SGSN接入控制成功, 则可以向 HNB发送切换请求消息, HNB收到该 切换请求消息之后获知本次切换涉及到 CS域以及 PS域, 故会等待 MSC 发送的切换请求消息, 但由于 MSC的接入控制已经失败, 所以 HNB始终 无法接收到 MSC发送的切换请求消息, 当 SGSN在自身定时器超时后仍未
收到 HNB的反馈, 则会向接入网元发送切换失败消息, 从而导致整个切换 过程失败。
现有技术方案中, 当 UE发生跨 PLMN切换之后, MSC无法获取到新的 PLMN的 CSG标识列表, 所以 MSC执行接入控制时必然会失败,也就会导致 整个切换过程失败, 因此使得 SGSN与 HNB之间传输的切换信令变为无效信 令, 从而影响了系统传输性能。 发明内容
本发明的多个方面提供了一种网络切换控制方法、 通信系统以及相关 设备, 能够消除网络中的无效信令, 提高系统传输性能。
本发明的一个方面提供了一种网络切换控制方法, 包括: 用户设备 UE 检测到家庭基站 HNB之后, 判断自身是否发生过跨公用陆地移动通信网 PLMN切换; 若确定用户设备发生过跨 PLMN切换, 且仍在进行 CS域业 务, 则用户设备向源接入网元发送测量报告, 所述测量报告中闭合签约用 户组 CSG成员指示信息表示所述用户设备为非成员。
本发明的另一方面提供了一种网络切换控制方法, 包括: 源接入网元 接收用户设备 UE发送的测量报告,所述测量报告中包含所述 UE已经进行 了跨公用陆地移动通信网 PLMN切换的指示;所述源接入网元获取所述 UE 目前正在进行的业务的业务类型; 若所述 UE目前仅在进行电路交换 CS域 业务, 则所述源接入网元不进行切换到 HNB的流程; 或, 若所述 UE目前 同时进行 CS域业务以及分组交换 PS域业务, 则所述源接入网元向 CS域 核心网网元发送第一切换请求消息, 并向 PS域核心网网元发送第二切换请 求消息, 所述第一切换请求消息中不携带闭合签约用户组 CSG相关信息, 所述第二切换请求消息中携带 CSG相关信息。
本发明的另一方面提供了一种网络切换控制方法, 包括: 用户设备 UE 检测到家庭基站 HNB之后, 判断自身是否发生过跨公用陆地移动通信网
PLMN切换; 若确定发生过跨 PLMN切换, 则向源接入网元发送测量报告, 所述测量报告中携带 UE已经进行了跨 PLMN切换的指示。
本发明的另一方面提供了网络切换控制方法, 包括: 源接入网元接收 用户设备 UE发送的测量报告;所述源接入网元获取所述 UE目前正在进行 的业务的业务类型; 若所述 UE目前正在同时进行电路交换 CS域业务以及 分组交换 PS域业务, 则所述源接入网元向 CS域核心网网元发送切换请求 消息, 所述切换请求消息中包含本次切换涉及多个核心网域的指示信息。
本发明的另一方面提供了一种网络切换控制方法, 包括: 第一 CS域核 心网网元接收来自源接入网元的切换请求消息; 若所述切换请求消息中包 含本次切换涉及多个核心网域的指示信息,则第一 CS域核心网网元判断所 述切换请求消息是否由第二 CS域核心网网元转发而来, 所述第一 CS域核 心网网元与所述第二 CS 域核心网网元分别属于不同的公用陆地移动通信 网 PLMN; 若是, 则第一 CS域核心网网元不进行接入控制, 并向家庭基站 HNB发送切换请求消息。
本发明的另一方面提供了一种网络切换控制方法,包括:家庭基站 HNB 接收分组交换 PS域核心网网元发送的切换请求消息; 若所述切换请求消息 指示本次切换同时涉及 PS域以及电路交换 CS域, 则所述 HNB启动反馈 定时器; 若在所述反馈定时器超时前, 所述 HNB仍未收到 CS域核心网网 元发送的切换请求消息, 则所述 HNB向所述 PS域核心网网元反馈切换确 认消息; 所述反馈定时器的超时时长短于所述 PS域核心网网元的切换失败 定时器的超时时长。
本发明的另一方面提供了一种用户设备, 包括: 第一检测单元, 用于 检测家庭基站 HNB; 第一切换判断单元, 用于当所述检测单元检测到 HNB 之后, 判断自身是否发生过跨公用陆地移动通信网 PLMN切换; 第一发送 单元, 用于当所述业务判断单元确定发生过跨 PLMN切换, 且用户设备仍 在进行 CS域业务时, 向源接入网元发送测量报告, 所述测量报告中闭合签
约用户组 CSG成员指示信息表示所述用户设备为非成员。
本发明的另一方面提供了一种接入网元, 包括: 第一接收单元, 用于 接收用户设备 UE发送的测量报告,所述测量报告中包含所述 UE已经进行 了跨公用陆地移动通信网 PLMN切换的指示; 第一获取单元, 用于获取所 述 UE目前正在进行的业务的业务类型; 第一处理单元,用于当所述第一获 取单元确定所述 UE 目前仅在进行电路交换 CS域业务时, 不进行切换到 HNB的流程; 或, 当所述第一获取单元确定所述 UE 目前同时进行 CS域 业务以及分组交换 PS域业务时, 向 CS域核心网网元发送第一切换请求消 息, 并向 PS域核心网网元发送第二切换请求消息, 所述第一切换请求消息 中不携带闭合签约用户组 CSG相关信息, 所述第二切换请求消息中携带 CSG相关信息。
本发明的另一方面提供了一种用户设备, 包括: 第二检测单元, 用于 检测家庭基站 HNB; 第二切换判断单元, 用于当所述第二检测单元检测到 HNB之后, 判断自身是否发生过跨公用陆地移动通信网 PLMN切换; 第二 发送单元, 用于当所述第二切换判断单元确定发生过跨 PLMN切换时, 向 源接入网元发送测量报告, 所述测量报告中携带用户设备已经进行了跨 PLMN切换的指示。
本发明的另一方面提供了一种接入网元, 包括: 第二接收单元, 用于 接收用户设备 UE发送的测量报告; 第二获取单元, 用于获取所述 UE目前 正在进行的业务的业务类型; 第二处理单元, 用于当所述第二获取单元确 定所述 UE目前正在同时进行电路交换 CS域业务以及分组交换 PS域业务 时, 向 CS域核心网网元发送切换请求消息, 所述切换请求消息中包含本次 切换涉及多个核心网域的指示信息。
本发明的另一方面提供了一种电路交换域核心网网元, 包括: 第三接 收单元, 用于接收来自源接入网元的切换请求消息; 判断单元, 用于当所 述第三接收单元接收到的切换请求消息中包含本次切换涉及多个核心网域
的指示信息时,判断所述切换请求消息是否由另一电路交换 CS域核心网网 元转发而来, 本 CS域核心网网元与所述另一 CS域核心网网元分别属于不 同的公用陆地移动通信网 PLMN; 第三处理单元, 用于当所述判断单元确 定所述切换请求消息是由另一电路交换 CS域核心网网元转发而来时,则不 进行接入控制, 并向家庭基站 HNB发送切换请求消息; 第四接收单元, 用 于接收 HNB反馈的切换确认消息,并向所述源接入网元发送切换命令消息。
本发明的另一方面提供了一种家庭基站, 包括: 第五接收单元, 用于 接收分组交换 PS域核心网网元发送的切换请求消息; 定时单元, 用于当所 述切换请求消息指示本次切换同时涉及 PS域以及电路交换 CS域时, 启动 反馈定时器; 反馈单元, 若在所述反馈定时器超时前, 仍未收到 CS域核心 网网元发送的切换请求消息,则向所述 PS域核心网网元反馈切换确认消息, 所述反馈定时器的超时时长短于所述 PS域核心网网元的切换失败定时器的 超时时长。
本发明的另一方面提供了一种通信系统, 包括: 家庭基站、 核心网网 元以及源接入网元, 所述通信系统还包括用户设备。
本发明的另一方面提供了一种通信系统, 包括: 家庭基站以及核心网 网元, 所述通信系统还包括源接入网元, 以及用户设备。
本发明的另一方面提供了一种通信系统, 包括: 用户设备以及家庭基 站 , 所述通信系统还包括源接入网元, 以及电路交换域核心网网元。
本发明的另一方面提供了一种通信系统, 包括: 用户设备、 源接入网 元以及核心网网元, 所述通信系统还包括家庭基站。
从以上技术方案可以看出, 本发明实施例具有以下优点:
上述技术方案, 可以有效避免网络中的无效信令, 提高系统传输性能。 附图说明
图 1为本发明网络切换控制方法一个实施例示意图;
图 2为本发明网络切换控制方法另一实施例示意图;
图 3为本发明网络切换控制方法另一实施例示意图;
图 4为本发明网络切换控制方法另一实施例示意图;
图 5为本发明网络切换控制方法另一实施例示意图;
图 6为本发明网络切换控制方法另一实施例示意图;
图 7为本发明网络切换控制方法另一实施例示意图;
图 8为本发明网络切换控制方法另一实施例示意图;
图 9为本发明用户设备一个实施例示意图;
图 10为本发明接入网元一个实施例示意图;
图 11为本发明用户设备另一实施例示意图;
图 12为本发明接入网元另一实施例示意图;
图 13为本发明 CS域核心网网元一个实施例示意图;
图 14为本发明家庭基站一个实施例示意图。 具体实施方式
本发明实施例提供了一种网络切换控制方法、 通信系统以及相关设备, 能够消除网络中的无效信令, 提高系统传输性能。
以下描述中, 为了说明而不是为了限定, 提出了诸如特定系统结构、 接口、 技术之类的具体细节, 以便透切理解本发明。 然而, 本领域的技术 在其它情况中, 省略对众所周知的装置、 电路以及方法的详细说明, 以免 不必要的细节妨碍本发明的描述。
本文中描述的各种技术可用于各种无线通信系统, 例如当前 2G, 3G 通信系统和下一代通信系统,例如全球移动通信系统( GSM, Global System for Mobile communications ), 码分多址 ( CDMA, Code Division Multiple Access ) 系统, 时分多址(TDMA, Time Division Multiple Access ) 系统,
宽带码分多址 ( WCDMA , Wideband Code Division Multiple Access Wireless ), 频分多址 ( FDMA, Frequency Division Multiple Addressing ) 系 统,正交频分多址( OFDMA, Orthogonal Frequency-Division Multiple Access ) 系统,单载波 FDMA ( SC-FDMA )系统,通用分组无线业务( GPRS , General Packet Radio Service ) 系统, 长期演进(LTE, Long Term Evolution ) 系统, 以及其他此类通信系统。
本文中结合终端和 /或基站和 /或基站控制器来描述各种方面。
终端, 可以是无线终端也可以是有线终端, 无线终端可以是指向用户 提供语音和 /或数据连通性的设备, 具有无线连接功能的手持式设备、 或连 接到无线调制解调器的其他处理设备。 无线终端可以经无线接入网 (例如, RAN, Radio Access Network ) 与一个或多个核心网进行通信, 无线终端可 以是移动终端,如移动电话(或称为"蜂窝"电话)和具有移动终端的计算机, 例如, 可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装 置, 它们与无线接入网交换语言和 /或数据。 例如, 个人通信业务(PCS , Personal Communication Service )电话、 无绳电话、 会话发起十办议 ( SIP )话 机、 无线本地环路(WLL, Wireless Local Loop )站、 个人数字助理(PDA, Personal Digital Assistant ) 等设备。 无线终端也可以称为系统、 订户单元 ( Subscriber Unit )、 订户站( Subscriber Station ), 移动站( Mobile Station )、 移动台 ( Mobile )、 远程站( Remote Station )、 接入点( Access Point )、 远程 终端 (Remote Terminal ), 接入终端 (Access Terminal ), 用户终端 (User Terminal ), 用户代理( User Agent )、 用户设备( User Device )、 或用户装备 ( User Equipment )。
基站 (例如, 接入点)可以是指接入网中在空中接口上通过一个或多 个扇区与无线终端通信的设备。 基站可用于将收到的空中帧与 IP分组进行 相互转换, 作为无线终端与接入网的其余部分之间的路由器, 其中接入网 的其余部分可包括网际协议(IP )网络。基站还可协调对空中接口的属性管
理。 例如, 基站可以是 GSM或 CDMA中的基站 (BTS, Base Transceiver Station ), 也可以是 WCDMA中的基站 ( NodeB ), 还可以是 LTE中的演进 型基站( NodeB或 eNB或 e-NodeB, evolutional Node B ),本发明并不限定。
基站控制器,可以是 GSM或 CDMA中的基站控制器( BSC, base station controller ),也可以是 WCDMA中的无线网络控制器( RNC, Radio Network Controller ) , 本发明并不限定。
另夕卜, 本文中术语"系统,,和"网络"在本文中常被可互换使用。本文中术 语"和 /或", 仅仅是一种描述关联对象的关联关系, 表示可以存在三种关系, 例如, Α和 /或 B, 可以表示: 单独存在 A, 同时存在 A和 B, 单独存在 B 这三种情况。 另外, 本文中字符" /", 一般表示前后关联对象是一种"或,,的 关系。
本发明实施例可以通过多种方式对网络切换进行控制, 下面分别进行 说明。
一、 由 UE进行网络切换控制:
请参阅图 1 , 本发明网络切换控制方法一个实施例可以如下所述。
101、 UE检测到 HNB;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB。
102、 UE判断自身是否发生过跨 PLMN切换, 若否, 则执行步骤 103 , 若是, 则执行步骤 104。
UE检测到 HNB之后, 若确定满足切换条件, 则 UE可以准备发起小 区切换, 随后 UE可以先判断自身是否发生过跨 PLMN切换。
需要说明的是, 本实施例中的切换条件可以为: 当前小区的信号强度 下降至某一门限值, 或 HNB的小区的信号强度高于某一门限值等, 可以理 解的是, 具体的切换条件为本领域技术人员的公知常识, 此处不作限定。
本实施例中, UE可以通过如下方式确定自身是否发生过跨 PLMN切
换:
UE判断在发生切换时从源接入网元接收到的重配消息中的 PLMN,和 /或位置区域(LA, Location Area ), 和 /或路由区域(RA, Routing Area )是 否发生变化, 若是, 则确定自身发生过跨 PLMN切换。
UE与注册 PLMN和 /或注册 LA和 /或注册 RA比较。
若 UE收到源接入网元发送的重配消息中未发现 PLMN、 LA以及 RA 发生变换, 则说明自身未发生过跨 PLMN切换。
上述仅以一个例子对本实施例中 UE确定自身是否发生过跨 PLMN切 换的方式进行了说明, 可以理解的是, 在实际应用中还可以有更多的方式, 例如 UE可以在每次发生跨 PLMN切换时在本地设置一个指示标识等, 具 体方式此处不作限定。
103、 执行正常切换流程;
若 UE确定自身没有发生过跨 PLMN切换, 则 UE可以执行正常的切 换流程以切换到 HNB的小区,具体切换过程为本领域技术人员的公知常识, 具体此处不作限定。
104、 判断是否仍在进行 CS域业务, 若是, 则执行步骤 105, 若否, 则执行步骤 103;
若 UE确定自身发生过跨 PLMN切换, 则 UE可以进一步判断当前是 否仍在进行 CS域业务。
由于 UE进行 CS业务时, 则非接入层 ( NAS , Non-Access Stratum )的 位置更新流程会被延迟,在业务进行时不会进行,所以 UE可以记录该状态。
当 UE确定自身发生过跨 PLMN切换时, 如果发现位置更新流程仍处 于被延迟状态, 即 UE当前仍在进行 CS域业务。
可以理解的是, UE除了使用 NAS的位置更新流程的标识来判断是否 仍在进行 CS域业务之外, 在实际应用中, 还可以有其他更多的方法判断当 前是否仍在进行 CS域业务。
需要说明的是,如果 UE确定当前没有进行 CS域业务, 而是在进行 PS 域业务, 则 UE也可以按照现有的切换流程切换到 HNB的小区。
本实施例中的 CS域业务由 CS域核心网网元负责处理, PS域业务由 PS域核心网网元负责处理。
105、 向源接入网元发送测量报告。
本实施例中,若 UE发生过跨 PLMN切换,且切换后仍在进行 CS域业 务, 则 UE不能切换到 HNB的小区, 否则将造成 PS域核心网网元与 HNB 之间产生大量无效的信令。
具体的, UE在上报给源接入网元的测量报告中 CSG成员指示信息表 示 UE为非成员, 从而使得源接入网元不会发起切换流程。
其中, 该 CSG成员指示信息用以表示 UE是成员用户, 则当测量报告 中不携带该 CSG成员指示信息时,源接入网元则会认为 UE不是成员用户, 也就自然不会发起切换流程, 或者, 该指示使用 TRUE或者 FALSE表示, TRUE表示是成员, FALSE表示非成员。
本实施例中的源接入网元可以为无线网络控制器( RNC, Radio Network Controller ),或基站控制器( BSC, Base Station Controller ),或演进基站( eNB, evolved NodeB )。
本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为 SGSN或 MME ( Mobility Management Entity , 移动管理实体)。
可以理解的是, 本实施例中的源接入网元、 CS 域核心网网元以及 PS 域核心网网元还可以是其他的网元, 具体此处不作限定。
本实施例中 , UE检测到 ΗΝΒ之后 , 如果确定自身发生过跨 PLMN切 换, 且切换后仍在进行 CS域业务, 则向接入网元发送测量报告, 而测量报 告中 CSG成员指示信息表示 UE为非成员, 则源接入网元就不会向核心网 网元发起切换 ,则可以有效避免 PS域核心网网元与 ΗΝΒ之间的无效信令 , 从而能够提高系统传输性能。
二、 由 UE和源接入网元配合进行网络切换控制:
上面介绍了 UE侧进行网络切换控制的过程,下面介绍另外一种由源接 入网元和 UE配合进行网络切换控制的过程, 请参阅图 2, 本发明网络切换 控制方法另一实施例可以如下所述。
201、 源接入网元接收 UE发送的测量 4艮告;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB, 随后 UE可以向源接入网元发送测量报告, 则源接入网元可以接收到 UE发送的 测量报告, 该测量报告中包含 CSG标识以及成员用户指示, 同时, 该测量 报告中还包含 UE已经进行了跨 PLMN切换的指示。
202、 源接入网元获取 UE目前正在进行的业务的业务类型;
源接入网元接收到 UE发送的测量报告之后,若发现该测量报告中包含 UE已经进行了跨 PLMN切换的指示,则源接入网元可以获取 UE目前正在 进行的业务的业务类型, 具体的获取方式可以为:
源接入网元通过 UE建立连接或者发起业务时上报的指示,或者通过与 不同域的核心网是否建立连接来获知 UE目前正在进行的业务的业务类型。
可以理解的是, 在实际应用中, 源接入网元还可以通过更多的方式获 知 UE目前正在进行的业务的业务类型, 具体此处不作限定。
203、 源接入网元根据 UE目前正在进行的业务的业务类型进行相应的 处理。
当源接入网元获取到 UE目前正在进行的业务的业务类型之后,则可以 根据该业务类型进行相应的处理, 具体处理方式包括:
( 1 )、 若 UE 目前仅在进行 CS域业务, 则源接入网元不发起切换到 HNB的流程。
如果 UE目前仅在进行 CS域业务, 由于 UE在测量报告中指明 UE已 经进行了跨 PLMN切换, CS域核心网网元无法获取到新的 PLMN的 CSG
标识列表, 所以会导致切换失败, 因此源接入网元可以不发起切换到 HNB 的流程, 例如可以不向核心网元发起切换请求消息, 从而阻止本次 HNB切 换。
( 2 )、 若 UE目前正在同时进行 CS域业务以及 PS域业务, 则源接入 网元可以向 CS域核心网网元发送第一切换请求消息, 并向 PS域核心网网 元发送第二切换请求消息。
如果 UE目前同时在进行 CS域业务以及 PS域业务,由于只有 CS域核 心网网元的接入控制会失败, 所以源接入网元向 CS域核心网网元以及 PS 域核心网网元发送的切换请求消息中携带不同的内容,在发给 CS域核心网 网元的第一切换请求消息中不携带 CSG相关信息, 而发给 PS域核心网网 元的第二切换请求消息中携带 CSG相关信息。
本实施例中的 CSG相关信息包括 HNB的 CSG标识以及小区接入模式。 由于源接入网元向 CS 域核心网网元发送的第一切换请求消息中不携 带 CSG相关信息, 所以 CS域核心网网元就不会进行接入控制, 也就不会 导致切换失败。
( 3 )、 若 UE目前仅在进行 PS域业务, 则源接入网元按照现有的切换 流程向 PS域核心网网元发送切换请求消息。
如果 UE目前仅在进行 PS域业务, 由于 PS域核心网网元可以获取到 新的 PLMN的 CSG标识列表,所以源接入网元可以按照现有的切换流程向 PS域核心网网元发送切换请求消息, 并进行后续的切换流程。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为 SGSN或 MME。
可以理解的是, 本实施例中的源接入网元、 CS 域核心网网元以及 PS 域核心网网元还可以是其他的网元, 具体此处不作限定。
本实施例中,当源接入网元从测量报告中获知 UE已经进行了跨 PLMN
切换时, 若 UE目前仅在进行 CS域业务, 则源接入网元可以不发起切换到 HNB 的流程, 例如不向核心网元发起切换请求消息, 则可以有效避免 PS 域核心网网元与 HNB之间的无效信令, 从而能够提高系统传输性能;
当源接入网元从测量报告中获知 UE已经进行了跨 PLMN切换时, 若 UE目前同时在进行 CS域业务以及 PS域业务,则源接入网元在发给 CS域 核心网网元的第一切换请求消息中不携带 CSG相关信息,该 CSG相关信息 包括 HNB的 CSG标识以及小区接入模式, CS域核心网网元没有从源接入 网元接收到 CSG相关信息, 所以就不会进行接入控制, 也就不会导致切换 失败, 也可以有效避免 PS域核心网网元与 HNB之间的无效信令, 从而能 够提高系统传输性能。
上面从源接入网元的角度对本实施例中的网络切换控制方法进行了描 述, 下面从 UE的角度对本实施例中的网络切换控制方法进行描述,请参阅 图 3 , 本发明网络切换控制方法另一实施例可以如下所述。
301、 UE检测到 HNB;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB。
302、 UE判断自身是否发生过跨 PLMN切换, 若否, 则执行步骤 303 , 若是, 则执行步骤 304;
UE检测到 HNB之后, 若确定满足切换条件, 则 UE可以准备发起小 区切换, 随后 UE可以先判断自身是否发生过跨 PLMN切换。
需要说明的是, 本实施例中的切换条件可以为: 当前小区的信号强度 下降至某一门限值, 或 HNB的小区的信号强度高于某一门限值等, 可以理 解的是, 具体的切换条件为本领域技术人员的公知常识, 此处不作限定。
本实施例中, UE可以通过如下方式确定自身是否发生过跨 PLMN切 换:
UE判断在发生切换时从源接入网元接收到的重配消息中的 PLMN,和
/或 LA, 和 /或 RA是否发生变化, 若是, 则确定自身发生过跨 PLMN切换。 若 UE收到源接入网元发送的重配消息中未发现 PLMN、 LA以及 RA 发生变换, 则说明自身未发生过跨 PLMN切换。
上述仅以一个例子对本实施例中 UE确定自身是否发生过跨 PLMN切 换的方式进行了说明, 可以理解的是, 在实际应用中还可以有更多的方式, 例如 UE可以在每次发生跨 PLMN切换时在本地设置一个指示标识等, 具 体方式此处不作限定。
303、 执行正常切换流程;
若 UE确定自身没有发生过跨 PLMN切换, 则 UE可以执行正常的切 换流程以切换到 HNB的小区,具体切换过程为本领域技术人员的公知常识, 具体此处不作限定。
304、 向源接入网元发送测量报告, 该测量报告中携带 UE已经进行了 跨 PLMN切换的指示。
若 UE确定自身发生过跨 PLMN切换, 则向源接入网元发送测量报告 时会携带 UE已经进行了跨 PLMN切换的指示, 该指示可以在测量报告中 新增一个信元, 例如 PLMN handover indicator用以表示, 表示的方式可以 为: 若携带该信元, 则表示 UE已经进行了跨 PLMN切换, 若不携带该信 元, 则表示 UE没有进行跨 PLMN切换, 或者, 若该信元的值为 1 , 则表示 UE已经进行了跨 PLMN切换, 若该信元的值为 0, 则表示 UE没有进行跨 PLMN切换。
可以理解的是, 在实际应用中, UE还可以用更多的方式在发给源接入 网元的测量报告中携带 UE已经进行了跨 PLMN切换的指示, 具体方式此 处不作限定。
本实施例中, UE在确认进行了跨 PLMN切换之后,可以在发给源接入 网元的测量报告中携带 UE已经进行了跨 PLMN切换的指示, 使得源接入 网元能够根据该指示进行后续的网络切换控制, 以避免 PS域核心网网元与
HNB之间的无效信令, 从而能够提高系统传输性能。
为便于理解, 下面以一个具体应用场景对本实施例中的网络切换控制 方法进行描述,请参阅图 4, 本发明网络切换控制方法另一实施例可以如下 所述。
401、 UE向源 RNC发送测量 4艮告;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB。
若确定满足切换条件, 则 UE可以准备发起小区切换, 随后 UE可以先 判断自身是否发生过跨 PLMN切换。
需要说明的是, 本实施例中的切换条件可以为: 当前小区的信号强度 下降至某一门限值, 或 HNB的小区的信号强度高于某一门限值等, 可以理 解的是, 具体的切换条件为本领域技术人员的公知常识, 此处不作限定。
本实施例中, UE可以通过如下方式确定自身是否发生过跨 PLMN切 换:
UE判断在发生切换时从源接入网元接收到的重配消息中的 PLMN,和 /或 LA, 和 /或 RA是否发生变化, 若是, 则确定自身发生过跨 PLMN切换。
若 UE收到源接入网元发送的重配消息中未发现 PLMN、 LA以及 RA 发生变换, 则说明自身未发生过跨 PLMN切换。
上述仅以一个例子对本实施例中 UE确定自身是否发生过跨 PLMN切 换的方式进行了说明, 可以理解的是, 在实际应用中还可以有更多的方式, 例如 UE可以在每次发生跨 PLMN切换时在本地设置一个指示标识等, 具 体方式此处不作限定。
为了后续的描述, 下面先对跨 PLMN切换的过程进行简要的说明: 假设 UE原先在 PLMN-A网络中, PLMN-A网络中的 CS域核心网网 元为 MSC-A, PS域核心网网元为 SGSN-A, 接入网元为 RNC-A, UE移动 到 PLMN-B网络中后, 则 UE在 PLMN-B网络中进行通信, PLMN-B网络
中的 CS域核心网网元为 MSC-B, PS域核心网网元为 SGSN-B, 接入网元 为 RNC-B。
对于 CS域, 服务 RNC变成 RNC-B, RNC-B连接到 MSC-B, 此时虽 然新小区的 PLMN不同了, 但是 UE不会发起位置更新流程, MSC锚点不 变仍是 MSC-A, 信令的传递过程为: RNC-B=>MSC-B=>MSC-A。
若 UE确定自身发生过跨 PLMN切换,则向源 RNC发送测量报告时会 携带 UE已经进行了跨 PLMN切换的指示, 该指示可以在测量报告中新增 一个信元 , 例如 PLMN handover indicator用以表示 , 表示的方式可以为: 若携带该信元, 则表示 UE已经进行了跨 PLMN切换, 若不携带该信元, 则表示 UE没有进行跨 PLMN切换, 或者, 若该信元的值为 1 , 则表示 UE 已经进行了跨 PLMN切换,若该信元的值为 0 ,则表示 UE没有进行跨 PLMN 切换。
可以理解的是,在实际应用中, UE还可以用更多的方式在发给源 RNC 的测量报告中携带 UE已经进行了跨 PLMN切换的指示, 具体方式此处不 作限定。
本实施例中,以 RNC作为源接入网元的例子进行说明,可以理解的是, 在实际应用中, 该源接入网元还可以是 BSC, 或 eNB等, 具体此处不作限 定。
本实施例中, 以 MSC作为 CS域核心网网元的例子, 以 SGSN作为 PS 域核心网网元的例子, 可以理解的是, 在实际应用中, 该 CS域核心网网元 以及 PS域核心网网元还可以是其他类型的网元, 具体此处不作限定。
402 ~ 403、 RNC发送切换请求消息;
本实施例中, 源 RNC接收到 UE发送的测量报告之后, 若发现该测量 报告中携带有 UE已经进行跨 PLMN切换的指示, 则源 RNC可以获取 UE 当前正在进行的业务的业务类型。
若源 RNC确定 UE目前仅在进行 CS域业务,则源 RNC可以不发起切
换到 HNB的流程, 例如可以不向核心网元发起切换请求消息, 从而阻止本 次 ΗΝΒ切换 , 则本次流程结束。
若源 RNC确定 UE目前正在同时进行 CS域业务以及 PS域业务,则源 RNC会向 SGSN-B 以及 MSC-B发送切换请求消息, 但发送的内容不同, 其中, 发给 SGSN-B的切换请求消息中携带有 ΗΝΒ的 CSG标识以及接入 模式,发给 MSC-B的切换请求消息中则不携带 ΗΝΒ的 CSG标识以及接入 模式。
404、 SGSN-B接入控制通过;
由于 SGSN-B可以获取到 UE在 PLMN-B网络中的 CSG标识列表, 又 可以从源 RNC获取到 ΗΝΒ的 CSG标识以及接入模式,贝' J SGSN-B可以判 断 HNB的 CSG标识是否在 CSG标识列表中, 若在, 则接入控制通过。
405、 SGSN-B通过 HNB网关向 HNB发送切换请求消息;
SGSN-B接入通过之后, 可以通过 HNB网关向 HNB发送切换请求消 息, 该切换请求消息中携带有 HNB的 CSG标识, 以请求进行小区切换。
可以理解的是, 在实际应用中, SGSN-B可以直接向 HNB网关发送切 换请求消息 ,也可以通过其他的核心网网元向 HNB网关发送切换请求消息 , 具体此处不作限定。
406、 MSC-B通过 HNB网关向 HNB发送切换请求消息;
MSC-B收到来自源 RNC的切换请求消息之后, 会将该切换请求消息 转发至 MSC-A, MSC-A确定该切换请求消息中不携带 HNB的 CSG标识以 及接入模式, 则不进行接入控制, 而可以直接通过 HNB网关向 HNB发送 切换请求消息以请求进行小区切换,该切换请求消息中不携带 HNB的 CSG 标识。
可以理解的是, 在实际应用中, MSC-A可以直接向 HNB 网关发送切 换请求消息, 也可以通过其他的核心网网元, 例如 MSC-B, 向 HNB 网关 发送切换请求消息, 具体此处不作限定。
407 ~ 408、 HNB收到 SGSN-B以及 MSC-B发送的切换请求消息之后, 通过 HNB网关分别回复切换确认消息。
409 ~ 410、 SGSN-B以及 MSC-B收到 HNB回复的切换确认消息之后, 分别向源 RNC发送切换命令消息, 以执行切换。
本实施例中, 当源 RNC从测量报告中获知 UE已经进行了跨 PLMN切 换时, 若 UE目前同时在进行 CS域业务以及 PS域业务, 则源 RNC在发给 MSC-B的第一切换请求消息中不携带 CSG相关信息, 该 CSG相关信息包 括 HNB的 CSG标识以及小区接入模式, MSC-B没有从源接入网元接收到 CSG相关信息, 所以就不会进行接入控制, 也就不会导致切换失败, 也可 以有效避免 SGSN-B与 HNB之间的无效信令,从而能够提高系统传输性能。
三、 由源接入网元与 CS域核心网网元配合进行网络切换控制: 上面介绍了 UE侧以及 UE与源接入网元配合进行网络切换控制的过 程 ,下面介绍另外一种由源接入网元和 CS域核心网网元配合进行网络切换 控制的过程,请参阅图 5, 本发明网络切换控制方法另一实施例可以如下所 述。
501、 源接入网元接收 UE发送的测量 4艮告;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB, 随后 UE可以向源接入网元发送测量报告, 则源接入网元可以接收到 UE发送的 测量报告, 该测量报告中包含 CSG标识以及成员用户指示。
502、 源接入网元获取 UE目前正在进行的业务的业务类型;
源接入网元接收到 UE发送的测量报告之后, 则源接入网元可以获取 UE目前正在进行的业务的业务类型, 具体的获取方式可以为:
源接入网元通过 UE建立连接或者发起业务时上报的指示,或者通过与 不同域的核心网是否建立连接来获知 UE目前正在进行的业务的业务类型。
可以理解的是, 在实际应用中, 源接入网元还可以通过更多的方式获
知 UE目前正在进行的业务的业务类型, 具体此处不作限定。
503、 若 UE目前正在同时进行 CS域业务以及 PS域业务, 则源接入网 元向 CS域核心网网元发送切换请求消息,该切换请求消息中包含本次切换 涉及多个核心网域的指示信息。
若源接入网元确定 UE目前正在同时进行 CS域业务以及 PS域业务, 则源接入网元可以向 CS域核心网网元发送切换请求消息,该切换请求消息 中包含本次切换涉及多个核心网域的指示。
该指示可以在切换请求消息中新增一个信元, 例如 MultiCN handover indicator用以表示, 表示的方式可以为: 若携带该信元, 则表示本次切换涉 及多个核心网域, 若不携带该信元, 则表示本次切换不涉及多个核心网域, 或者, 若该信元的值为 1 , 则表示本次切换涉及多个核心网域, 若该信元的 值为 0, 则表示本次切换不涉及多个核心网域。
可以理解的是, 在实际应用中, 源接入网元还可以用更多的方式在发 给 CS 域核心网网元的切换请求消息中携带本次切换涉及多个核心网域的 指示, 具体方式此处不作限定。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为 SGSN或 MME。
本实施例中 , 源接入网元确定 UE目前正在进行 CS域业务以及 PS域 业务之后, 可以向 CS域核心网网元发送切换请求消息, 该切换请求消息中 包含本次切换涉及多个核心网域的指示,使得 CS域核心网网元获知本次切 换涉及多个核心网域, 所以能够进行相应的网络切换控制, 以避免 SGSN-B 与 HNB之间的无效信令, 从而能够提高系统传输性能。
上面从源接入网元的角度对本发明网络切换控制方法进行了说明, 下 面从 CS域核心网网元的角度对本发明网络切换控制方法进行说明,请参阅 图 6, 本发明网络切换控制方法另一实施例可以如下所述。
601、 第一 CS域核心网网元接收来自源接入网元的切换请求消息; 当源接入网元发送切换请求消息之后,第一 CS域核心网网元可以接收 到该切换请求消息。
602、 判断该切换请求消息是否由第二 CS域核心网网元转发而来, 若 是, 则执行步骤 604, 若否, 则执行步骤 603;
当第一 CS域核心网网元接收到切换请求消息之后,若确定该切换请求 消息中包含本次切换涉及多个核心网域的指示信息, 则可以判断该切换请 求消息是否由第二 CS域核心网网元转发而来。
本实施例中, 第一 CS域核心网网元与第二 CS域核心网网元分别属于 不同的 PLMN。
603、 执行正常切换流程;
若第一 CS域核心网网元确定该切换请求消息不是由第二 CS域核心网 网元转发而来, 则说明该切换请求消息是由源 RNC直接发送给第一 CS域 核心网网元,也就是说 UE并未发生跨 PLMN切换, 则第一 CS域核心网网 元可以执行正常的切换流程以切换至 HNB的小区,具体过程此处不作限定。
604、第一 CS域核心网网元不进行接入控制, 并向家庭基站 HNB发送 切换请求消息;
若第一 CS域核心网网元确定该切换请求消息是由属于不同的 PLMN 的第二 CS域核心网网元转发而来, 则说明 UE发生了跨 PLMN切换,该切 换请求消息是由新的 PLMN的第二 CS域核心网网元转发而来。
由于第一 CS域核心网网元无法获取到新的 PLMN的 CSG标识列表, 所以如果进行接入控制, 则必然失败, 故第一 CS域核心网网元不进行接入 控制, 并直接向 HNB发送切换请求消息。
605、第一 CS域核心网网元接收 HNB反馈的切换确认消息, 并向源接 入网元发送切换命令消息。
第一 CS 域核心网网元在向 HNB发送了切换请求消息之后, 可以从
HNB接收到切换确认消息, 随后第一 CS域核心网网元可以向源接入网元 发送切换命令消息以执行切换。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为
SGSN。
本实施例中, 第一 CS域核心网网元接收到切换请求消息之后, 若确定 该切换请求消息中包含本次切换涉及多个核心网域的指示, 则可以判断该 切换请求消息是否是由属于另一 PLMN的第二 CS域核心网网元, 若是, 则说明 UE发生了跨 PLMN切换,由于第一 CS域核心网网元无法获取到新 的 PLMN的 CSG标识列表, 所以如果进行接入控制, 则必然失败, 故第一 CS域核心网网元不进行接入控制, 并直接向 HNB发送切换请求消息, 以 避免 SGSN-B与 HNB之间的无效信令, 从而能够提高系统传输性能。
四、 由 HNB侧进行网络切换控制:
上面介绍了 UE侧进行网络切换控制、 UE与源接入网元配合进行网络 切换控制、以及源接入网元与 CS域核心网网元配合进行网络切换控制的过 程, 下面介绍另外一种由 HNB侧独立进行网络切换控制的过程, 请参阅图 7 , 本发明网络切换控制方法另一实施例可以如下所述。
701、 HNB接收 PS域核心网网元发送的切换请求消息;
当需要发起 HNB切换时, HNB可以从 PS域核心网网元接收到切换请 求消息, 该切换请求消息中携带有 HNB的 CSG标识。
702、若切换请求消息指示本次切换同时涉及 PS域以及 CS域,则 HNB 启动反馈定时器;
若 HNB在从 PS域核心网网元接收到切换请求消息中识别出本次切换 同时涉及 PS域以及 CS域,而 HNB尚未收到 CS域核心网网元发送的切换 请求消息, 则 HNB启动反馈定时器。
703、 若在反馈定时器超时前, HNB仍未收到 CS域核心网网元发送的
切换请求消息, 则 HNB向 PS域核心网网元反馈切换确认消息。
HNB启动反馈定时器之后, 如果在该反馈定时器超时前, HNB仍未收 到 CS域核心网网元发送的切换请求消息, 则 HNB向 PS域核心网网元反 馈切换确认消息, 以使得 PS域核心网网元继续进行后续的切换操作。
需要说明的是, 本实施例中, HNB 的反馈定时器的超时时长短于 PS 域核心网网元的切换失败定时器的超时时长, 也就是说, PS域核心网网元 在切换超时失败之前会从 HNB收到切换确认消息。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为
SGSN或 MME。
为便于理解, 下面以一个具体应用场景对本实施例中的网络切换控制 方法进行描述,请参阅图 8, 本发明网络切换控制方法另一实施例可以如下 所述。
801、 UE向源 RNC发送测量 4艮告;
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB。
若确定满足切换条件, 则 UE可以准备发起小区切换, 则 UE可以向源 RNC发送测量报告, 该测量报告中包含 HNB的 CSG标识以及 UE的成员 指示信息。
本实施例中,以 RNC作为源接入网元的例子进行说明,可以理解的是, 在实际应用中, 该源接入网元还可以是 BSC, 或 eNB等, 具体此处不作限 定。
本实施例中, 以 MSC作为 CS域核心网网元的例子, 以 SGSN作为 PS 域核心网网元的例子, 可以理解的是, 在实际应用中, 该 CS域核心网网元 以及 PS域核心网网元还可以是其他类型的网元, 具体此处不作限定。
802 ~ 803、 RNC发送切换请求消息;
本实施例中, 源 RNC接收到 UE发送的测量报告之后, 会向 SGSN-B 以及 MSC-B发送切换请求消息, 发送的内容相同, 均包括 HNB的 CSG标 识以及接入模式。
804、 接入控制通过;
由于 SGSN-B可以获取到 UE在 PLMN-B网络中的 CSG标识列表, 又 可以从源 RNC获取到 HNB的 CSG标识以及接入模式,贝' J SGSN-B可以判 断 HNB的 CSG标识是否在 CSG标识列表中, 若在, 则接入控制通过。
805、 接入控制失败;
由于 MSC-A无法获取到 UE在 PLMN-B网络中的 CSG标识列表, 所 以当从源 RNC获取到 HNB的 CSG标识以及接入模式时, MSC-A的接入 控制会失败, 则不会再向 HNB发送切换请求消息。
806、 SGSN-B通过 HNB网关向 HNB发送切换请求消息;
SGSN-B接入通过之后, 可以通过 HNB网关向 HNB发送切换请求消 息, 该切换请求消息中携带有 HNB的 CSG标识, 以请求进行小区切换。
807、 HNB启动反馈定时器;
HNB在从 PS域核心网网元接收到切换请求消息中识别出本次切换同 时涉及 PS域以及 CS域, 而 HNB尚未收到 MSC发送的切换请求消息, 则 HNB启动反馈定时器。
808、 反馈定时器超时;
809、 HNB通过 HNB网关向 SGSN-B发送切换确认消息;
若在反馈定时器超时前, HNB仍未收到 MSC发送的切换请求消息, 则 HNB向 SGSN-B反馈切换确认消息,以使得 SGSN-B继续进行后续的切 换操作。
需要说明的是, 本实施例中, HNB 的反馈定时器的超时时长短于 SGSN-B的切换失败定时器的超时时长, 也就是说, SGSN-B在切换超时失 败之前会从 HNB收到切换确认消息。
810、 SGSN-B收到 HNB回复的切换确认消息之后, 向源 RNC发送切 换命令消息, 以执行切换。
本实施例中 , HNB在从 PS域核心网网元接收到切换请求消息中识别 出本次切换同时涉及 PS域以及 CS域时 ,若 HNB尚未收到 CS域核心网网 元发送的切换请求消息, 则 HNB启动反馈定时器, 如果在该反馈定时器超 时前, HNB仍未收到 CS域核心网网元发送的切换请求消息, 则 HNB向 PS域核心网网元反馈切换确认消息, 以使得 PS域核心网网元继续进行后 续的切换操作, 由于该反馈定时器的超时时长短于 PS域核心网网元的切换 失败定时器的超时时长, 所以, PS域核心网网元在切换超时失败之前会从 HNB收到切换确认消息,故能够避免 PS域核心网网元与 HNB之间的无效 信令, 从而能够提高系统传输性能。
下面介绍本发明实施例中的装置项,请参阅图 9, 本发明用户设备一个 实施例可以如下所述。
第一检测单元 901 , 用于检测 HNB;
第一切换判断单元 902, 用于当检测单元 901检测到 HNB之后, 判断 自身是否发生过跨 PLMN切换;
第一发送单元 904,用于当第一切换判断单元 902确定发生过跨 PLMN 切换, 且用户设备仍在进行 CS域业务时, 向源接入网元发送测量报告, 该 测量报告中 CSG成员指示信息表示 UE为非成员。
本实施例中的用户设备还可以进一步包括:
业务判断单元 903 , 用于当第一切换判断单元 902确定发生过 PLMN 为便于理解, 下面以一具体实例对本实施例用户设备中各单元的联系 进行说明:
本实施例中, UE随着位置的移动, 第一检测单元 901可以不断对附近 的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, 第一检测单元
901则可以检测到该 HNB。
第一检测单元 901检测到 HNB之后, 若确定满足切换条件, 则 UE可 以准备发起小区切换, 随后第一切换判断单元 902可以先判断自身是否发 生过跨 PLMN切换。
需要说明的是, 本实施例中的切换条件可以为: 当前小区的信号强度 下降至某一门限值, 或 HNB的小区的信号强度高于某一门限值等, 可以理 解的是, 具体的切换条件为本领域技术人员的公知常识, 此处不作限定。
本实施例中, 第一切换判断单元 902确定 UE是否发生过跨 PLMN切 换的方式与前述图 1所示实施例中步骤 102所描述的内容类似, 此处不再 贅述。
若第一切换判断单元 902确定 UE没有发生过跨 PLMN切换, 则 UE 可以执行正常的切换流程以切换到 HNB的小区,具体切换过程为本领域技 术人员的公知常识, 具体此处不作限定。
若第一切换判断单元 902确定 UE发生过跨 PLMN切换, 则业务判断 单元 903可以进一步判断当前是否仍在进行 CS域业务。
本实施例中,若 UE发生过跨 PLMN切换,且切换后仍在进行 CS域业 务, 则 UE不能切换到 HNB的小区, 否则将造成 PS域核心网网元与 HNB 之间产生大量无效的信令。
具体的, 第一发送单元 904在上报给源接入网元的测量报告中 CSG成 员指示信息表示 UE为非成员, 从而使得源接入网元不会发起切换流程。
其中, 该 CSG成员指示信息用以表示 UE是成员用户, 则当测量报告 中不携带该 CSG成员指示信息时,源接入网元则会认为 UE不是成员用户, 也就自然不会发起切换流程。 或者, 该指示使用 TRUE或者 FALSE表示, TRUE表示是成员, FALSE表示非成员。
本实施例中, 第一检测单元 901检测到 HNB之后, 如果第一切换判断 单元 902确定 UE发生过跨 PLMN切换, 且业务判断单元 903确定切换后
仍在进行 CS域业务, 则第一发送单元 904向接入网元发送测量报告, 而测 量报告中 CSG成员指示信息表示 UE为非成员,则源接入网元就不会向 CS 域核心网网元发起切换, 则可以有效避免 PS域核心网网元与 HNB之间的 无效信令, 从而能够提高系统传输性能。
请参阅图 10, 本发明接入网元一个实施例可以如下所述。
第一接收单元 1001 , 用于接收用户设备 UE发送的测量报告, 该测量 报告中包含该 UE已经进行了公用陆地移动通信网跨 PLMN切换的指示; 第一获取单元 1002, 用于获取该 UE目前正在进行的业务的业务类型; 第一处理单元 1003, 用于当该第一获取单元 1002确定该 UE目前仅在 进行电路交换 CS域业务时, 不发起切换到 HNB的流程; 或, 当该第一获 取单元 1002确定该 UE目前正在同时进行 CS域业务以及分组交换 PS域业 务时, 向 CS域核心网网元发送第一切换请求消息, 并向 PS域核心网网元 发送第二切换请求消息, 该第一切换请求消息中不携带闭合签约用户组 CSG相关信息, 该第二切换请求消息中携带 CSG相关信息。
本实施例中的 CSG相关信息包括 HNB的 CSG标识以及小区接入模式。 为便于理解, 下面以一具体实例对本实施例接入网元中各单元的联系 进行说明:
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB, 随后 UE可以向源接入网元发送测量报告,则第一接收单元 1001可以接收到 UE 发送的测量报告, 该测量报告中包含 CSG标识以及成员用户指示, 同时, 该测量报告中还包含 UE已经进行了跨 PLMN切换的指示。
第一接收单元 1001接收到 UE发送的测量报告之后, 若发现该测量报 告中包含 UE已经进行了跨 PLMN切换的指示, 则第一获取单元 1002可以 获取 UE目前正在进行的业务的业务类型, 具体的获取方式可以为:
源接入网元通过 UE建立连接或者发起业务时上报的指示,或者通过与
不同域的核心网是否建立连接来获知 UE目前正在进行的业务的业务类型。 可以理解的是, 在实际应用中, 源接入网元还可以通过更多的方式获 知 UE目前正在进行的业务的业务类型, 具体此处不作限定。
当第一获取单元 1002获取到 UE目前正在进行的业务的业务类型之后 , 则第一处理单元 1003可以根据该业务类型进行相应的处理, 具体处理方式 包括:
( 1 )、 若 UE 目前仅在进行 CS域业务, 则第一处理单元 1003不发起 切换到 HNB的流程。
如果 UE目前仅在进行 CS域业务, 由于 UE在测量报告中指明 UE已 经进行了跨 PLMN切换, CS域核心网网元无法获取到新的 PLMN的 CSG 标识列表, 所以会导致切换失败, 因此第一处理单元 1003可以不发起切换 到 HNB的流程, 例如可以不向核心网元发起切换请求消息, 从而阻止本次 HNB切换。
( 2 )、 若 UE目前正在同时进行 CS域业务以及 PS域业务, 则第一处 理单元 1003可以向 CS域核心网网元发送第一切换请求消息,并向 PS域核 心网网元发送第二切换请求消息。
如果 UE目前同时在进行 CS域业务以及 PS域业务,由于只有 CS域核 心网网元的接入控制会失败, 所以第一处理单元 1003向 CS域核心网网元 以及 PS域核心网网元发送的切换请求消息中携带不同的内容, 在发给 CS 域核心网网元的第一切换请求消息中不携带 CSG相关信息, 而发给 PS域 核心网网元的第二切换请求消息中携带 CSG相关信息。
本实施例中的 CSG相关信息包括 HNB的 CSG标识以及小区接入模式。 由于第一处理单元 1003向 CS域核心网网元发送的第一切换请求消息 中不携带 CSG相关信息, 所以 CS域核心网网元就不会进行接入控制, 也 就不会导致切换失败。
( 3 )、 若 UE 目前仅在进行 PS域业务, 则第一处理单元 1003按照现
有的切换流程向 PS域核心网网元发送切换请求消息。
如果 UE目前仅在进行 PS域业务, 由于 PS域核心网网元可以获取到 新的 PLMN的 CSG标识列表, 所以第一处理单元 1003可以按照现有的切 换流程向 PS域核心网网元发送切换请求消息, 并进行后续的切换流程。
需要说明的是,本实施例中的接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为
SGSN。
可以理解的是, 本实施例中的接入网元、 CS域核心网网元以及 PS域 核心网网元还可以是其他的网元, 具体此处不作限定。
本实施例中, 当第一接收单元 1001从测量报告中获知 UE已经进行了 跨 PLMN切换时, 若 UE目前仅在进行 CS域业务, 则第一处理单元 1003 可以不发起切换到 HNB的流程, 则可以有效避免 PS域核心网网元与 HNB 之间的无效信令, 从而能够提高系统传输性能;
当第一接收单元 1001从测量报告中获知 UE已经进行了跨 PLMN切换 时,若 UE目前同时在进行 CS域业务以及 PS域业务,则第一处理单元 1003 在发给 CS域核心网网元的第一切换请求消息中不携带 CSG相关信息, 该 CSG相关信息包括 HNB的 CSG标识以及小区接入模式, CS域核心网网元 没有从源接入网元接收到 CSG相关信息, 所以就不会进行接入控制, 也就 不会导致切换失败, 也可以有效避免 PS域核心网网元与 HNB之间的无效 信令, 从而能够提高系统传输性能。
请参阅图 11 , 本发明用户设备另一实施例可以如下所述。
第二检测单元 1101 , 用于检测家庭基站 HNB;
第二切换判断单元 1102, 用于当该第二检测单元 1101检测到 HNB之 后, 判断自身是否发生过跨公用陆地移动通信网跨 PLMN切换;
第二发送单元 1103 , 用于当该第二切换判断单元 1102确定发生过跨 PLMN切换时, 向源接入网元发送测量报告, 该测量报告中携带用户设备
已经进行了跨 PLMN切换的指示。
为便于理解, 下面以一具体实例对本实施例用户设备中各单元的联系 进行说明:
本实施例中, UE随着位置的移动, 第二检测单元 1101 可以不断对附 近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, 第二检测单 元 1101则可以检测到该 HNB。
第二检测单元 1101检测到 HNB之后, 若确定满足切换条件, 则 UE 可以准备发起小区切换, 随后第二切换判断单元 1102可以先判断 UE是否 发生过跨 PLMN切换。
需要说明的是, 本实施例中的切换条件可以为: 当前小区的信号强度 下降至某一门限值, 或 HNB的小区的信号强度高于某一门限值等, 可以理 解的是, 具体的切换条件为本领域技术人员的公知常识, 此处不作限定。
本实施例中, 第二切换判断单元 1102确定 UE是否发生过跨 PLMN切 换的方式与前述图 3所示实施例中步骤 302所描述的内容类似, 此处不再 贅述。
若第二切换判断单元 1102确定自身没有发生过跨 PLMN切换, 则 UE 可以执行正常的切换流程以切换到 HNB的小区,具体切换过程为本领域技 术人员的公知常识, 具体此处不作限定。
若第二切换判断单元 1102确定自身发生过跨 PLMN切换,则第二发送 单元 1103向源接入网元发送测量报告时会携带 UE已经进行了跨 PLMN切 换的指示。
该指示可以在测量才艮告中新增一个信元,例如 PLMN handover indicator 用以表示, 表示的方式可以为: 若携带该信元, 则表示 UE 已经进行了跨 PLMN切换, 若不携带该信元, 则表示 UE没有进行跨 PLMN切换, 或者, 若该信元的值为 1 ,则表示 UE已经进行了跨 PLMN切换,若该信元的值为 0 , 则表示 UE没有进行跨 PLMN切换。
可以理解的是, 在实际应用中, 第二发送单元 1103还可以用更多的方 式在发给源接入网元的测量报告中携带 UE已经进行了跨 PLMN切换的指 示, 具体方式此处不作限定。
本实施例中,第二切换判断单元 1102在确认进行了跨 PLMN切换之后, 第二发送单元 1103可以在发给源接入网元的测量报告中携带 UE已经进行 了跨 PLMN切换的指示, 使得源接入网元能够根据该指示进行后续的网络 切换控制, 以避免 PS域核心网网元与 HNB之间的无效信令, 从而能够提 高系统传输性能。
请参阅图 12, 本发明接入网元另一实施例可以如下所述。
第二接收单元 1201 , 用于接收用户设备 UE发送的测量报告; 第二获取单元 1202, 用于获取该 UE目前正在进行的业务的业务类型; 第二处理单元 1203, 用于当该第二获取单元 1202确定该 UE目前正在 同时进行电路交换 CS域业务以及分组交换 PS域业务时, 向 CS域核心网 网元发送切换请求消息, 该切换请求中包含本次切换涉及多个核心网域的 指示信息。
为便于理解, 下面以一具体实例对本实施例接入网元中各单元的联系 进行说明:
本实施例中, UE随着位置的移动, 可以不断对附近的小区进行检测, 当 UE移动到 HNB的小区覆盖范围下时, UE则可以检测到该 HNB, 随后 UE可以向源接入网元发送测量报告,则第二接收单元 1201可以接收到 UE 发送的测量报告, 该测量报告中包含 CSG标识以及成员用户指示。
第二接收单元 1201接收到 UE发送的测量报告之后, 若发现该测量报 告中包含 UE已经进行了跨 PLMN切换的指示, 则第二获取单元 1202可以 获取 UE目前正在进行的业务的业务类型, 具体的获取方式可以为:
源接入网元通过 UE建立连接或者发起业务时上报的指示,或者通过与 不同域的核心网是否建立连接来获知 UE目前正在进行的业务的业务类型。
可以理解的是, 在实际应用中, 源接入网元还可以通过更多的方式获 知 UE目前正在进行的业务的业务类型, 具体此处不作限定。
若第二获取单元 1202确定 UE目前正在同时进行 CS域业务以及 PS域 业务, 则第二处理单元 1203可以向 CS域核心网网元发送切换请求消息, 该切换请求消息中包含本次切换涉及多个核心网域的指示。
该指示可以在切换请求消息中新增一个信元, 例如 MultiCN handover indicator用以表示, 表示的方式可以为: 若携带该信元, 则表示本次切换涉 及多个核心网域, 若不携带该信元, 则表示本次切换不涉及多个核心网域, 或者, 若该信元的值为 1 , 则表示本次切换涉及多个核心网域, 若该信元的 值为 0, 则表示本次切换不涉及多个核心网域。
可以理解的是, 在实际应用中, 第二处理单元 1203还可以用更多的方 式在发给 CS 域核心网网元的切换请求消息中携带本次切换涉及多个核心 网域的指示, 具体方式此处不作限定。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为
SGSN。
本实施例中, 第二获取单元 1202确定 UE 目前正在进行 CS域业务以 PS域业务之后,第二处理单元 1203可以向 CS域核心网网元发送切换请 求消息, 该切换请求消息中包含本次切换涉及多个核心网域的指示, 使得 CS域核心网网元获知本次切换涉及多个核心网域, 所以能够进行相应的网 络切换控制, 以避免 SGSN-B与 HNB之间的无效信令, 从而能够提高系统 传输性能。
请参阅图 13 , 本发明 CS域核心网网元一个实施例可以如下所述。 第三接收单元 1301 , 用于接收来自源接入网元的切换请求消息; 判断单元 1302, 用于当该切换请求消息中包含本次切换涉及多个核心 网域的指示信息时,判断该切换请求消息是否由另一电路交换 CS域核心网
网元转发而来, 本 CS域核心网网元与该另一 CS域核心网网元分别属于不 同的公用陆地移动通信网 PLMN;
第三处理单元 1303,用于当该判断单元 1302确定该切换请求消息是由 另一电路交换 CS域核心网网元转发而来时, 则不进行接入控制, 并向家庭 基站 HNB发送切换请求消息;
第四接收单元 1304,用于接收 HNB反馈的切换确认消息,并向该源接 入网元发送切换命令消息。
为便于理解,下面以一具体实例对本实施例 CS域核心网网元中各单元 的联系进行说明:
当源接入网元发送切换请求消息之后, 第三接收单元 1301可以接收到 该切换请求消息。
当第三接收单元 1301接收到切换请求消息之后, 若确定该切换请求消 息中包含本次切换涉及多个核心网域的指示信息, 则判断单元 1302可以判 断该切换请求消息是否由另一 CS域核心网网元转发而来。
本实施例中, 本 CS域核心网网元与该另一 CS域核心网网元分别属于 不同的 PLMN。
若判断单元 1302确定该切换请求消息不是由另一 CS域核心网网元转 发而来, 则说明该切换请求消息是由源 RNC 直接发送给自身, 也就是说 UE并未发生跨 PLMN切换, 则本 CS域核心网网元可以执行正常的切换流 程以切换至 HNB的小区, 具体过程此处不作限定。
若判断单元 1302确定该切换请求消息是由另一 CS域核心网网元转发 而来, 则说明 UE发生了跨 PLMN切换, 该切换请求消息是由新的 PLMN 的 CS域核心网网元转发而来。
由于本 CS域核心网网元无法获取到新的 PLMN的 CSG标识列表, 所 以如果进行接入控制,则必然失败,故第三处理单元 1303不进行接入控制, 并直接向 HNB发送切换请求消息。
第三处理单元 1303在向 HNB发送了切换请求消息之后, 第四接收单 元 1304可以从 HNB接收到切换确认消息 ,随后本 CS域核心网网元可以向 源接入网元发送切换命令消息以执行切换。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为 SGSN。
本实施例中, 第三接收单元 1301接收到切换请求消息之后, 若判断单 元 1302确定该切换请求消息中包含本次切换涉及多个核心网域的指示, 则 可以判断该切换请求消息是否是由属于另一 PLMN的 CS域核心网网元, 若是, 则说明 UE发生了跨 PLMN切换, 由于本 CS域核心网网元无法获取 到新的 PLMN的 CSG标识列表, 所以如果进行接入控制, 则必然失败, 故 第三处理单元 1303不进行接入控制, 并直接向 HNB发送切换请求消息, 以避免 SGSN-B与 HNB之间的无效信令, 从而能够提高系统传输性能。
请参阅图 14, 本发明家庭基站一个实施例可以如下所述。
第五接收单元 1401 ,用于接收分组交换 PS域核心网网元发送的切换请 求消息;
定时单元 1402,用于当该切换请求消息指示本次切换同时涉及 PS域以 及电路交换 CS域时, 启动反馈定时器;
反馈单元 1403 , 若在该反馈定时器超时前, 仍未收到 CS域核心网网 元发送的切换请求消息, 则向该 PS域核心网网元反馈切换确认消息, 该反 馈定时器的超时时长短于该 PS 域核心网网元的切换失败定时器的超时时 长。
为便于理解, 下面以一具体实例对本实施例家庭基站中各单元的联系 进行说明:
当需要发起 HNB切换时,第五接收单元 1401可以从 PS域核心网网元 接收到切换请求消息, 该切换请求消息中携带有 HNB的 CSG标识。
若第五接收单元 1401在从 PS域核心网网元接收到切换请求消息中识 别出本次切换同时涉及 PS域以及 CS域,而 HNB尚未收到 CS域核心网网 元发送的切换请求消息, 则定时单元 1402启动反馈定时器。
定时单元 1402启动反馈定时器之后,如果在该反馈定时器超时前, HNB 仍未收到 CS域核心网网元发送的切换请求消息, 则反馈单元 1403 向 PS 域核心网网元反馈切换确认消息, 以使得 PS域核心网网元继续进行后续的 切换操作。
需要说明的是, 本实施例中, HNB 的反馈定时器的超时时长短于 PS 域核心网网元的切换失败定时器的超时时长, 也就是说, PS域核心网网元 在切换超时失败之前会从 HNB收到切换确认消息。
需要说明的是,本实施例中的源接入网元可以为 RNC,或 BSC,或 eNB。 本实施例中的 CS域核心网网元可以为 MSC , PS域核心网网元可以为 SGSN。
本实施例中, 第五接收单元 1401在从 PS域核心网网元接收到切换请 求消息中识别出本次切换同时涉及 PS域以及 CS域时, 若 HNB尚未收到 CS域核心网网元发送的切换请求消息, 则定时单元 1402启动反馈定时器, 如果在该反馈定时器超时前, HNB仍未收到 CS域核心网网元发送的切换 请求消息, 则反馈单元 1403向 PS域核心网网元反馈切换确认消息, 以使 得 PS域核心网网元继续进行后续的切换操作, 由于该反馈定时器的超时时 长短于 PS域核心网网元的切换失败定时器的超时时长, 所以, PS域核心 网网元在切换超时失败之前会从 HNB收到切换确认消息, 故能够避免 PS 域核心网网元与 HNB之间的无效信令, 从而能够提高系统传输性能。
下面介绍本发明实施例中的通信系统:
本实施例中的一个通信系统, 包括: 家庭基站、 核心网网元以及源接 入网元; 该通信系统还包括如前述图 9所示实施例中的用户设备。
本实施例中的另一通信系统, 包括: 家庭基站以及核心网网元,; 通信
系统还包括如前述图 10所示实施例中的源接入网元, 以及如前述图 11所 示实施例中的用户设备。
本实施例中的另一通信系统, 包括: 用户设备以及家庭基站; 该通信 系统还包括如前述图 12所示实施例中的源接入网元, 以及如前述图 13所 示实施例中的电路交换域核心网网元。
本实施例中的另一通信系统, 包括: 用户设备、 源接入网元以及核心 网网元; 该通信系统还包括如前述图 14所示实施例中的家庭基站。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述 描述的系统, 装置和单元的具体工作过程, 可以参考前述方法实施例中的 对应过程, 在此不再贅述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置 和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅 是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实 现时可以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成 到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论 的相互之间的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单 元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在 一个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用软 件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销
售或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方 案的全部或部分可以以软件产品的形式体现出来, 该计算机软件产品存储 在一个存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人 计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全 部或部分步骤。而前述的存储介质包括: U盘、移动硬盘、只读存储器( ROM, Read-Only Memory ), 随机存取存储器 ( RAM, Random Access Memory )、 磁碟或者光盘等各种可以存储程序代码的介质。
以上所述, 以上实施例仅用以说明本发明的技术方案, 而非对其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术人员 应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者 对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims
1、 一种网络切换控制方法, 其特征在于, 包括:
用户设备 UE检测到家庭基站 HNB之后, 判断自身是否发生过跨公用 陆地移动通信网 PLMN切换;
若确定用户设备发生过跨 PLMN切换, 且仍在进行 CS域业务, 则用 户设备向源接入网元发送测量报告, 所述测量报告中闭合签约用户组 CSG 成员指示信息表示所述用户设备为非成员。
2、 根据权利要求 1所述的方法, 其特征在于, 所述判断自身是否发生 过跨 PLMN切换包括:
所述 UE判断从所述源接入网元接收到的重配消息中的 PLMN和 /或位 置区域和 /或路由区域是否发生变化, 若是, 则确定自身发生过跨 PLMN切 换。
3、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 所述 UE判断当前非接入层 NAS的位置更新流程是否处于延迟状态, 若是, 则确定自身仍在进行 CS域业务。
4、 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述源接入网元为无线网络控制器 RNC, 或基站控制器 BSC, 或演进 基站 eNB。
5、 一种网络切换控制方法, 其特征在于, 包括:
源接入网元接收用户设备 UE发送的测量报告,所述测量报告中包含所 述 UE已经进行了跨公用陆地移动通信网 PLMN切换的指示;
所述源接入网元获取所述 UE目前正在进行的业务的业务类型; 若所述 UE目前仅在进行电路交换 CS域业务, 则所述源接入网元不进 行切换到 HNB的流程;
或,
若所述 UE目前同时进行 CS域业务以及分组交换 PS域业务, 则所述 源接入网元向 CS域核心网网元发送第一切换请求消息, 并向 PS域核心网 网元发送第二切换请求消息, 所述第一切换请求消息中不携带闭合签约用 户组 CSG相关信息, 所述第二切换请求消息中携带 CSG相关信息。
6、 根据权利要求 5所述的方法, 其特征在于,
所述 CSG相关信息包括 HNB的 CSG标识以及小区接入模式。
7、 一种网络切换控制方法, 其特征在于, 包括:
用户设备 UE检测到家庭基站 HNB之后, 判断自身是否发生过跨公用 陆地移动通信网 PLMN切换;
若确定发生过跨 PLMN切换, 则向源接入网元发送测量报告, 所述测 量报告中携带 UE已经进行了跨 PLMN切换的指示。
8、 根据权利要求 7所述的方法, 其特征在于, 所述判断自身是否发生 过跨 PLMN切换包括:
所述 UE判断从所述源接入网元接收到的重配消息中的 PLMN和 /或位 置区域和 /或路由区域是否发生变化, 若是, 则确定自身发生过跨 PLMN切 换。
9、 一种网络切换控制方法, 其特征在于, 包括:
源接入网元接收用户设备 UE发送的测量报告;
所述源接入网元获取所述 UE目前正在进行的业务的业务类型; 若所述 UE目前正在同时进行电路交换 CS域业务以及分组交换 PS域 业务, 则所述源接入网元向 CS域核心网网元发送切换请求消息, 所述切换 请求消息中包含本次切换涉及多个核心网域的指示信息。
10、 根据权利要求 9所述的方法, 其特征在于, 所述源接入网元获取 所述 UE目前正在进行的业务的业务类型包括:
源接入网元通过 UE建立连接或者发起业务时上报的指示,或者通过与 不同域的核心网是否建立连接来获知 UE目前正在进行的业务的业务类型。
11、 一种网络切换控制方法, 其特征在于, 包括: 第一 cs域核心网网元接收来自源接入网元的切换请求消息;
若所述切换请求消息中包含本次切换涉及多个核心网域的指示信息, 则第一 CS域核心网网元判断所述切换请求消息是否由第二 CS域核心网网 元转发而来, 所述第一 CS域核心网网元与所述第二 CS域核心网网元分别 属于不同的公用陆地移动通信网 PLMN;
若是, 则第一 CS域核心网网元不进行接入控制, 并向家庭基站 HNB 发送切换请求消息。
12、 根据权利要求 11所述的方法, 其特征在于, 所述第一 CS域核心 网网元不进行接入控制, 并向家庭基站 HNB发送切换请求消息之后包括: 第一 CS域核心网网元接收 HNB反馈的切换确认消息, 并向所述源接 入网元发送切换命令消息。
13、 一种网络切换控制方法, 其特征在于, 包括:
家庭基站 HNB接收分组交换 PS域核心网网元发送的切换请求消息; 若所述切换请求消息指示本次切换同时涉及 PS域以及电路交换 CS域, 则所述 HNB启动反馈定时器;
若在所述反馈定时器超时前, 所述 HNB仍未收到 CS域核心网网元发 送的切换请求消息, 则所述 HNB向所述 PS域核心网网元反馈切换确认消 息;
所述反馈定时器的超时时长短于所述 PS域核心网网元的切换失败定时 器的超时时长。
14、 根据权利要求 13所述的方法, 其特征在于, 所述 CS域核心网网 元为移动交换中心 MSC;
所述 PS域核心网网元为服务通用无线分组业务支持节点 SGSN, 或移 动性管理实体 MME。
15、 一种用户设备, 其特征在于, 包括:
第一检测单元, 用于检测家庭基站 HNB; 第一切换判断单元, 用于当所述检测单元检测到 HNB之后, 判断自身 是否发生过跨公用陆地移动通信网 PLMN切换;
第一发送单元, 用于当所述业务判断单元确定发生过跨 PLMN切换, 且用户设备仍在进行 CS域业务时, 向源接入网元发送测量报告, 所述测量 报告中闭合签约用户组 CSG成员指示信息表示所述用户设备为非成员。
16、 一种接入网元, 其特征在于, 包括:
第一接收单元,用于接收用户设备 UE发送的测量报告, 所述测量报告 中包含所述 UE已经进行了跨公用陆地移动通信网 PLMN切换的指示; 第一获取单元, 用于获取所述 UE目前正在进行的业务的业务类型; 第一处理单元,用于当所述第一获取单元确定所述 UE目前仅在进行电 路交换 CS域业务时, 不进行切换到 HNB的流程; 或, 当所述第一获取单 元确定所述 UE目前同时进行 CS域业务以及分组交换 PS域业务时,向 CS 域核心网网元发送第一切换请求消息,并向 PS域核心网网元发送第二切换 请求消息,所述第一切换请求消息中不携带闭合签约用户组 CSG相关信息, 所述第二切换请求消息中携带 CSG相关信息。
17、 根据权利要求 16所述的接入网元, 其特征在于, 所述 CSG相关 信息包括 HNB的 CSG标识以及小区接入模式。
18、 一种用户设备, 其特征在于, 包括:
第二检测单元, 用于检测家庭基站 HNB;
第二切换判断单元, 用于当所述第二检测单元检测到 HNB之后, 判断 自身是否发生过跨公用陆地移动通信网 PLMN切换;
第二发送单元, 用于当所述第二切换判断单元确定发生过跨 PLMN切 换时, 向源接入网元发送测量报告, 所述测量报告中携带用户设备已经进 行了跨 PLMN切换的指示。
19、 一种接入网元, 其特征在于, 包括:
第二接收单元, 用于接收用户设备 UE发送的测量报告; 第二获取单元, 用于获取所述 UE目前正在进行的业务的业务类型; 第二处理单元,用于当所述第二获取单元确定所述 UE目前正在同时进 行电路交换 CS域业务以及分组交换 PS域业务时, 向 CS域核心网网元发 送切换请求消息, 所述切换请求消息中包含本次切换涉及多个核心网域的 指示信息。
20、 一种电路交换域核心网网元, 其特征在于, 包括:
第三接收单元, 用于接收来自源接入网元的切换请求消息;
判断单元, 用于当所述第三接收单元接收到的切换请求消息中包含本 次切换涉及多个核心网域的指示信息时, 判断所述切换请求消息是否由另 一电路交换 CS域核心网网元转发而来,本 CS域核心网网元与所述另一 CS 域核心网网元分别属于不同的公用陆地移动通信网 PLMN;
第三处理单元, 用于当所述判断单元确定所述切换请求消息是由另一 电路交换 CS域核心网网元转发而来时, 则不进行接入控制, 并向家庭基站 HNB发送切换请求消息;
第四接收单元, 用于接收 HNB反馈的切换确认消息, 并向所述源接入 网元发送切换命令消息。
21、 一种家庭基站, 其特征在于, 包括:
第五接收单元,用于接收分组交换 PS域核心网网元发送的切换请求消 息;
定时单元,用于当所述切换请求消息指示本次切换同时涉及 PS域以及 电路交换 CS域时, 启动反馈定时器;
反馈单元, 若在所述反馈定时器超时前, 仍未收到 CS域核心网网元发 送的切换请求消息, 则向所述 PS域核心网网元反馈切换确认消息, 所述反 馈定时器的超时时长短于所述 PS域核心网网元的切换失败定时器的超时时 长。
22、 一种通信系统, 包括: 家庭基站、 核心网网元以及源接入网元, 其特征在于, 所述通信系统还包括如权利要求 15所述的用户设备。
23、 一种通信系统, 包括: 家庭基站以及核心网网元, 其特征在于, 所述通信系统还包括如权利要求 16或 17所述的源接入网元, 以及如权利 要求 18所述的用户设备。
24、 一种通信系统, 包括: 用户设备以及家庭基站, 其特征在于, 所 述通信系统还包括如权利要求 19所述的源接入网元, 以及如权利要求 20 所述的电路交换域核心网网元。
25、 一种通信系统, 包括: 用户设备、 源接入网元以及核心网网元, 其特征在于, 所述通信系统还包括如权利要求 21所述的家庭基站。
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