Classifications

• • 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
  • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
  • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
  • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
  • H04W36/00226—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]

Definitions

• Capability matching method Capability matching method, access network control node and user equipment
• the application is submitted to the Chinese Patent Office on April 13, 2012, the application number is 201210108927.8, and the invention name is "capability matching method, access network control node and user equipment”.
• Priority of Chinese Patent Application the entire contents of which is incorporated herein by reference.
• the present application relates to the field of communications technologies, and in particular, to a capability matching method, an access network control node, and a user equipment. Background technique
• the user equipment In the process of wireless communication, the user equipment (User Equipment, UE) can be switched to perform Single Radio Voice Call Continuity (SRVCC) handover, and the UE is also switched to the neighboring cell. Go to another access network system. For example, from Long Term Evolution (LTE) SRVCC to UTS Terrestrial Radio Access Network (UTRAN) or G-radio Access Network (GERAN).
• LTE Long Term Evolution
• SRVCC UTS Terrestrial Radio Access Network
• GERAN G-radio Access Network
• the process of handover is as shown in FIG. 1.
• the UE initiates a connection request message to the core network node, indicating the UE's ability to support the SRVCC in the connection request, 1 identifying the UE's ability to support the SRVCC to the UTRAN or the GERAN, and 0 identifying that the UE does not support the SRVCC to any one of the systems.
• the core network node sends a capability matching request to the access network control node, and is used to request the access network control node to report the capability matching result.
• the access network control node performs the capability of the UE to support the SRVCC or the reverse SRVCC, the frequency band supported by the UE, and the voice over Internet Protocol (VOIP) capability of the UE supporting the specific system, and the frequency band covered by the voice of the access network. Matching, select a matching target cell for the UE for handover. Or, the access network control node will match the capabilities The result is indicated to the core network node.
• the core network node receives the capability matching result of the access network control node, and indicates to the UE in the connection response message, so that the UE performs VOIP according to the capability matching result.
• the access network control node transmits the capability information and frequency band information of the SRVCC supported by the UE to the specific system, and the frequency band covered by the voice of the access network. If the information is matched, it is not guaranteed that the SRVCC supported by the UE is consistent with the Public Land Mobile Network (PLMN) of the specific system and the SRVCC supported by the core network node to the PLMN of the specific system, resulting in the access network control node doing the same. An incorrect capability matching indication is made, or the wrong target cell is selected at the time of handover.
• PLMN Public Land Mobile Network
• the embodiments of the present application provide a capability matching method, an access network control node, and a user equipment, which can prevent an access network control node from obtaining an incorrect capability matching result.
• An aspect of the present application provides a capability matching method, where the method includes: receiving core network capability information delivered by a core network node, where the core network capability information is: a single wireless voice supported by the core network node Ability to call continuity SRVCC or reverse SRVCC to a specific system; match capability information of the user equipment UE supporting SRVCC or reverse SRVCC to a specific system with the core network capability information; send the first obtained matching to the core network node The capability matching result; or, selecting a target cell according to the first capability matching result.
• a capability matching method includes: acquiring a frequency band and core network capability information of an access network voice coverage; wherein the core network capability information is: supported by the core network node The ability of a single wireless voice call to contiguous SRVCC or reverse SRVCC to a specific system; when the frequency band and capability information supported by the UE matches the frequency band and core network capability information covered by the voice of the access network, it is determined that voice can be used Network protocol VOIP.
• an access network control node including: a receiving unit, configured to receive core network capability information delivered by a core network node, where the core network capability information is: The capability of the core network node to support a single wireless voice call continuity SRVCC or a reverse SRVCC to a specific system; a matching unit, the capability information for the user equipment UE to support the SRVCC or the reverse SRVCC to the specific system and the core network The capability information is matched; the execution unit is configured to send the matched first capability matching result to the core network node; or select the target cell according to the first capability matching result.
• a user equipment including: an acquiring unit, configured to acquire a frequency band and core network capability information of an access network voice coverage; where the core network capability information is: the core network node A capability of supporting a single wireless voice call continuity SRVCC or a reverse SRVCC to a specific system; a matching unit configured to match the frequency band and capability information supported by the UE with the frequency band and core network capability information of the access network voice coverage When it is determined, the voice network protocol VOIP can be used.
• the capability matching method, the access network control node, and the user equipment provided by the embodiments of the present application can ensure that the matching core network supports SRVCC or reverse SRVCC to a specific system, thereby avoiding an erroneous capability matching result.
• Embodiment 3 is a flowchart of another capability matching method in Embodiment 1 of the present application.
• FIG. 5 is a flowchart of a capability matching method in Embodiment 2 of the present application
• FIG. 6 is a schematic diagram of a configuration of an access network control node in Embodiment 3 of the present application
• FIG. 7 is a schematic diagram of another access network control node in Embodiment 3 of the present application
• a schematic diagram of a UE composition A schematic diagram of a UE composition. detailed description
• GSM Global System for Mobile Communications
• CDMA Code Division Multiple Access
• CDMA Code Division Multiple
• TDMA Time Division Multiple Access
• WCDMA Wideband Code Division Multiple Access
• FDMA Frequency Division Multiple Access
• OFDMA Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system
• SC-FDMA single carrier FDMA
• GPRS General Packet Radio Service
• LTE Long Term Evolution
• the user equipment 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 Meter
• RAN Radio Access Network
• the computer for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
• personal communication services e.g, personal communication services
• a wireless terminal may also be referred to as 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 attribute management of the air interface.
• 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), this application is not limited.
• the base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited in this application.
• BSC base station controller
• RNC radio network controller
• system and “network” are often used interchangeably herein.
• the term “and/or,” is merely an association describing an associated object, indicating that there may be three relationships.
• a and / or B can mean: There are three cases where A exists separately, A and B exist at the same time, and B exists separately.
• the character "/" in this article generally indicates that the contextual object is an "or" relationship.
• Example 1 An embodiment of the present application provides a capability matching method, which is applied to an access network control node side, as shown in FIG. 2 .
• the access network control node receives the core network capability information delivered by the core network (CN) node.
• the core network capability information is: the capability of the core network node to support a single wireless voice call continuity SRVCC or a reverse SRVCC to a specific system.
• the core network capability information is specifically at least one of: the capability of the core network node supporting the SRVCC to the global mobile communication system GSM, the capability of the SRVCC to the universal mobile communication system UMTS, and the reverse SRVCC to the long term evolution system LTE. Capabilities, ability to reverse SRVCC to high speed packet access system HSPA.
• the core network capability information may be specifically information that the core network node supports SRVCC or reverse SRVCC to one or more PLMNs of a specific system.
• the core network capability information is specifically at least one of: information of one or more PLMNs supported by the core network node from SRVCC to GSM, information of one or more PLMNs of SRVCC to UMTS, reverse SRVCC to LTE Information of one or more PLMNs, reverse SRVCC information to one or more PLMNs of the HSPA system, and the like.
• the core network node may be a core network device such as an MME, an MSC, or an SGSN.
• the access network control node may be an access network device such as an eNB or an RNC.
• the core network node is specifically an MME, and the access network control node is specifically an eNB, and the MME may send the core network capability information to the eNB at an appropriate timing.
• the core network node is an SGSN
• the access network control node is specifically an RNC.
• the SGSN can send the core network capability information to the RNC at an appropriate timing.
• the core network capability information may be information of one or more PLMNs supported by the core network node to the specific system, for example, the core network node supports SRVCC to GERAN, or supports SRVCC to UTRAN, or supports Information from one or more PLMNs of SRVCC to GERAN and UTRAN.
• the core network node is specifically an MSC, and the access network control section The point is specifically the RNC, and the MSC can send the core network capability information to the RNC at an appropriate timing.
• the core network capability information may be information of one or more PLMNs supported by the core network node from the reverse SRVCC to the specific system, for example, the core network node supports reverse SRVCC to LTE, or supports reverse SRVCC to HSPA. Or information that supports reverse SRVCC to one or more PLMNs of LTE and HSPA.
• the access network control node may match the frequency band information supported by the UE with the voice coverage band information of the access network, and match the capability information of the UE with the core network capability information to obtain a first capability matching result.
• the capability information of the UE includes: the capability of the UE to support SRVCC or reverse SRVCC to a specific system, the VOIP capability of the UE to support a specific system, the information of one or more PLMNs that the UE allows access, and the like.
• the VOIP capability of the UE to support a specific system includes: the UE supports the VOIP capability of the UMTS and/or the UE supports the VOIP capability of the LTE.
• the first capability matching result obtained by the matching may be used to select a target cell for handover for the UE, or may be used to indicate a matching result to the core network node. If the frequency band information and the capability information of the UE are successfully matched, the target cell may be selected according to the first capability matching result, and the successfully matched cell is used as the target cell of the handover.
• an access network control node eNB or MME
• the information about the target cell may further include a PLMN to which the cell belongs and matches the core network capability.
• the first capability matching result sent to the core network node may further include information that the matching is successful. For example, at least one of the following is included: Matching a successful SRVCC to GSM, match successful SRVCC to UMTS, match successful reverse SRVCC to LTE, or match successful reverse SRVCC to HSPA. Further, the first capability matching result may further include information that matches one or more successful PLMNs.
• the timing at which the core network node sends the core network capability information may be selected according to different wireless communication systems, or according to actual application requirements, and the core network node is further provided, as shown in FIG. 3
• the core network capability information may be carried in the capability matching request message sent by the core network node to the access network control node.
• an S1 application protocol (SI application protocol, S1AP) message or a radio access network application part (RANAP) sent by the core network node to the access network control node.
• the message carries the core network capability information.
• the UE in order to select a capability-matched PLMN for the UE and obtain the first capability matching result, not only the UE can support the SRVCC or the reverse SRVCC to the specific system and the core network supports the SRVCC or the reverse SRVCC to a specific system.
• the information of the multiple PLMNs may be matched, and other capability information of the UE may be further added to the matching condition, for example, information of one or more PLMNs that the UE allows access, UEs support VOIP capabilities of the specific system, and the like.
• the information of the one or more PLMNs that the UE allows to access and the VOIP capability of the UE to support the specific system are sent to the access network control node at an appropriate timing in the prior art, so that the CN node can also be allowed by the UE.
• the capability information of the SRVCC or the reverse SRVCC supported by the PLMN to the specific system is indicated.
• the MME may perform an initial context configuration message (INITIAL CONTEXT SETUP REQUEST), a handover request message (Handover Request), and a downlink.
• an initial context configuration message IITIAL CONTEXT SETUP REQUEST
• a handover request message Handover Request
• a downlink In the S1AP message, such as the DOWNLINK NAS TRANSPORT, the UE radio capability matching request, the information that the core network node supports the SRVCC to the one or more PLMNs of the specific system is sent to the eNB.
• the SGSN or the MSC may be in the Relocation Request message, the ENHANCED RELOCATION INFORMATION REQUEST, the Common ID message (Common ID), and the direct handover message (Direct).
• the core network capability information is sent to the RNC in the RANAP message, such as the UE and the radio capability matching request.
• the core network node may further send the core network capability information after receiving the capability query request indication of the access network control node.
• the method may further include:
• the access network control node sends a capability query request indication to the core network node, so that the core network node sends the core network capability information to the access network control node.
• the RNC sends a capability query request indication to the SGSN, and after receiving the capability query request indication, the SGSN sends the RNC the capability information of the core network node to support the SRVCC to the specific system.
• the RNC sends a capability query request indication to the MSC, and after receiving the capability query request indication, the MSC sends the RNC the capability information of the core network node to support the reverse SRVCC to the specific system.
• the capability query request indication is an explicit indication for requesting the capability of the core network's SRVCC to a specific system or the ability of the reverse SRVCC to a specific system. Further, the display indication may also indicate the ability of the SRVCC of one or more PLMNs to a particular system or the ability of a reverse SRVCC to a particular system. Or the capability query request indication is an implicit indication, and the implicit indication is a second capability matching result.
• the second capability matching result refers to that the access network control node uses the existing technology before receiving the core network capability information, and only matches the capability reported by the UE and the matching frequency band of the supported network and the voice coverage band of the access network.
• the second matching result is There is no guarantee that a matching PLMN will be selected for the UE.
• the second capability matching result is sent to the core network node in the Initial UE Message or the Uplink Direct Transfer message, so that the core network node sends the core network after receiving the implicit indication. Capability information.
• the capability matching method provided by the embodiment of the present application delivers the capability information of the core network node supporting the SRVCC or the reverse SRVCC to the specific system to the access network control node, so that the access network control node can according to the frequency band and capability information of the UE.
• the frequency band and the core network capability information of the access network voice are matched, and the matching can be ensured compared with the prior art technology that only matches the frequency band and capability information of the UE and the frequency band and capability information of the access network voice coverage.
• the result is a PLMN that supports SRVCC or supports reverse SRVCC to a particular system, thereby avoiding erroneous capability matching results.
• the embodiment of the present application provides a capability matching method, as shown in FIG. 5.
• the user equipment acquires a frequency band and core network capability information of the voice coverage of the access network.
• the core network capability information is: a capability of the core network node to support the SRVCC to a specific system, and/or capability information of the reverse SRVCC supported by the core network node to a specific system.
• the core network capability information and the frequency band information covered by the access network voice may be sent by the core network node to the access network control node at an appropriate timing, and then sent by the access network control node to the UE at an appropriate timing. Or can be directly sent to the UE by the core network node at the appropriate time.
• the tracking area update (TAU) or the routing area update (RAU) does not occur after the idle state UE moves, but the frequency band supported by the neighboring cell changes, which may result in UE support.
• the frequency band does not match the frequency band covered by the voice of the access network. If the UE initiates VOIP, the UE will not be able to obtain the matching target cell for SRVCC or VOIP handover, resulting in voice handover failure. Therefore, in order to avoid the voice switching failure, the core network capability and the frequency band information of the access network voice coverage may be sent to the UE, so that the UE determines whether the VOIP can be used. 202. When the frequency band and capability information supported by the UE matches the frequency band and core network capability information of the voice coverage of the access network, determine that the VOIP can be used.
• the UE matches the frequency band information of the UE with the frequency band information of the access network voice, and matches the capability information of the UE with the core network capability information. If the frequency band information and the capability information match, the UE can determine the match.
• Successful communities can use VOIP.
• the capability information of the UE includes: the capability of the UE to support SRVCC or reverse SRVCC to a specific system, the VOIP capability of the UE to support a specific system, and information of one or more PLMNs that the UE allows access.
• the capability matching method delivers the capability information of the core network node supporting the SRVCC or the reverse SRVCC to the specific system, so that the UE can use the frequency band and capability information of the UE and the frequency band covered by the voice of the access network.
• the core network capability information is matched, and compared with the prior art, only in the Attach and TAU/RAU procedures to determine whether the UE can use the VOIP, the UE can ensure that the UE can update the VOIP decision in time after the cell reselection, thereby avoiding Get the wrong decision.
• the access network control node includes: a receiving unit 31, a matching unit 32, and an executing unit 33.
• the receiving unit 31 is configured to receive core network capability information delivered by the core network node.
• the core network capability information is: a capability of the core network node to support a single wireless voice call continuity SRVCC to a specific system, or a capability of the core network node to support a reverse SRVCC to a specific system.
• the core network capability information may specifically be at least one of the following: the capability of the core network node to support the SRVCC to the global mobile communication system GSM, the capability of the SRVCC to the universal mobile communication system UMTS, and the reverse SRVCC to the long term evolution system LTE The ability to reverse SRVCC to HSPA for high-speed packet access systems.
• the core network capability information may specifically be at least one of the following: the core network node supports SRVCC to GSM one or more PLMN information, SRVCC to Information of one or more PLMNs of the UMTS, information of one or more PLMNs of the reverse SRVCC to LTE, or information of one or more PLMNs of the reverse SRVCC to the HSPA system, and the like.
• the matching unit 32 is configured to match the capability information of the user equipment UE supporting the SRVCC or the reverse SRVCC to the specific system with the core network capability information.
• the executing unit 33 is configured to send a matching first capability matching result to the core network node, or select a target cell according to the first capability matching result.
• the core network capability information may be carried in a capability matching request message sent by the core network node to the access network control node.
• the core network capability information may be carried in the S1 application protocol S1 AP message or the radio access network application part RANAP message sent by the core network node to the access network control node.
• the access network control node may further include: a requesting unit 34.
• the requesting unit 34 is configured to send a capability query request indication to the core network node before the receiving unit 31 receives the core network capability information sent by the core network node, so that the core network node controls the access network The node sends the core network capability information.
• the capability query request indication is an explicit indication for requesting the SRVCC capability of the PLMN or the capability of the reverse SRVCC to the specific system.
• the capability query request indication is an implicit indication
• the implicit indication is a second capability matching result, which is carried in the UE initial message or the uplink direct transfer message, so that the core network node sends the core network capability information.
• the access network control node delivers the capability information of the core network node supporting the SRVCC or the reverse SRVCC to the specific system to the access network control node, so that the access network control node can be based on the frequency band and capability of the UE.
• the information and voice coverage bands and the capability information of the core network are matched, and compared with the prior art technology that only matches the frequency band and capability information of the UE and the voice coverage band and the core network capability information, the matching is guaranteed to support SRVCC or Reverse SRVCC to a specific system to avoid erroneous capability matching results.
• the embodiment of the present application provides a user equipment UE.
• the UE includes: an obtaining unit 41 and a matching unit 42.
• the obtaining unit 41 is configured to obtain a frequency band and core network capability information of the voice coverage of the access network.
• the core network capability information is: a capability of the core network node to support a single wireless voice call continuity SRVCC to a specific system, or a capability of the core network node to support a reverse SRVCC to a specific system.
• the core network capability information may specifically be at least one of the following: the capability of the core network node to support the SRVCC to the global mobile communication system GSM, the capability of the SRVCC to the universal mobile communication system UMTS, and the reverse SRVCC to the long term evolution system LTE The ability to reverse SRVCC to HSPA for high-speed packet access systems.
• the core network capability information may specifically be at least one of the following: information of one or more PLMNs supported by the core network node from SRVCC to GSM, information of one or more PLMNs of SRVCC to UMTS, reversed Information of one or more PLMNs of SRVCC to LTE, or information of one or more PLMNs of reverse SRVCC to HSPA system, and the like.
• the matching unit 42 is configured to determine that the voice network protocol VOIP can be used when the frequency band and capability information supported by the UE matches the frequency band and core network capability information covered by the access network voice.
• the UE provided by the embodiment of the present application delivers the capability of the core network node to support the SRVCC or the reverse SRVCC to the specific system, so that the UE can use the frequency band and capability information of the UE and the frequency band and core network capability of the access network voice coverage.
• the information is matched, and compared with the prior art, only in the Attach and TAU/RAU procedures to determine whether the UE can use the VOIP, the UE can ensure that the UE can update the decision of whether to use the VOIP in time after the cell reselection, thereby avoiding an error. The decision is coming.
• the disclosed systems, devices, and methods may be implemented in other ways.
• the device embodiments described above are merely illustrative.
• the division of the modules or units is only a logical function division.
• there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
• the 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 electrical, mechanical or otherwise.
• 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 application 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 if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
• the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
• the foregoing storage medium includes: a U disk, a mobile A medium that can store program code, such as a hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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• 2012
  • 2012-04-13 CN CN201210108927.8A patent/CN103379557B/zh active Active
• 2013
  • 2013-03-28 WO PCT/CN2013/073326 patent/WO2013152671A1/fr not_active Ceased

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