WO2010012176A1 - Procédé, dispositif et système d'obtention dune information relative à la capacité de transfert intercellulaire entre systèmes et d'accès à un système - Google Patents

Procédé, dispositif et système d'obtention dune information relative à la capacité de transfert intercellulaire entre systèmes et d'accès à un système Download PDF

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Publication number
WO2010012176A1
WO2010012176A1 PCT/CN2009/072061 CN2009072061W WO2010012176A1 WO 2010012176 A1 WO2010012176 A1 WO 2010012176A1 CN 2009072061 W CN2009072061 W CN 2009072061W WO 2010012176 A1 WO2010012176 A1 WO 2010012176A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
information
capability information
access system
access
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Application number
PCT/CN2009/072061
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English (en)
Chinese (zh)
Inventor
姜怡
于琦
张戬
郭小龙
国炜
权威
Original Assignee
华为技术有限公司
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Publication of WO2010012176A1 publication Critical patent/WO2010012176A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • Embodiments of the present invention relate to a wireless communication technology, and in particular, to a method, device, and system for acquiring information and system access between system switching capabilities.
  • LTE Long Term Evolved
  • 3GPP Third Generation Partnership Project
  • UMTS Universal Mobile Telecommunication System
  • the main purpose of LTE is to provide a low-cost network that can reduce the delay, increase the user data rate, and increase the system capacity and coverage.
  • the network can use Packet-Switched Domain (PS) services to carry IP data packets. .
  • PS Packet-Switched Domain
  • the Mobility Management Entity (MME) function is mainly to save the mobility management context of the user equipment (User Equipment, hereinafter referred to as UE), and to the non-access layer (Non Access Stratum, referred to as NAS) signaling processing, responsible for NAS signaling security, etc., wherein the mobility management context may include user identification, mobility management status, location information, and the like.
  • the main function of the E-UTRAN Node B (hereinafter referred to as eNB) in the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is to establish, maintain or release the UE. Wireless connection, save context information of the UE in the connected state, and access the access layer (Acs s S t ra tum, referred to as AS) signaling processing, responsible for the security of AS signaling.
  • AS access layer
  • the eNB when the MME obtains the wireless capability information of the user equipment in the attaching process, the eNB is configured to trigger the eNB to query the UE for the wireless capability information of all the access systems corresponding to the UE.
  • the wireless capability information of the system is entered, and for the wireless capability information of the non-current access system, the MME triggers the eNB to perform the query and report only when the UE needs to perform the different system handover.
  • the inventor has found that the prior art has at least the following defects: If the MME triggers the eNB to query the UE for the wireless capability information of all access systems corresponding to the UE, it may waste limited air interface resources; If the MME triggers the eNB to query only the capabilities of the LTE access system, and the UE needs to perform the inter-system handover, the eNB is configured to query the radio capability information of the non-current access system of the UE, which may increase the delay of the UE to perform the different system handover. , thereby increasing the probability of failure of a different system switch. It can be seen that the MME acquires the information about the inter-system handover capability information, such as the radio capability information of the UE, and may have defects such as poor validity of the acquired inter-system handover capability information.
  • the embodiments of the present invention provide a method, a device, and a system for acquiring inter-system handover capability information and system access, which are used to improve the effectiveness of the inter-system handover capability information of the access system supported by the obtained user equipment.
  • An embodiment of the present invention provides a method for acquiring inter-system handover capability information, including: acquiring capability information of the user equipment;
  • the first access system supported by the user equipment is selected according to the capability information of the user equipment and the subscription restriction information, so that the access systems are in the user equipment.
  • the capability supports the access system in the range, and acquires the switching capability information of the first access system supported by the user equipment, thereby improving the acquired user equipment.
  • the effectiveness of the inter-system handover capability information of the supported access systems is conducive to saving network resources.
  • the embodiment of the invention provides a mobility management network element, including:
  • a first parsing module configured to acquire capability information of the user equipment
  • the first access system is configured to acquire the inter-system handover capability information of the first access system supported by the user equipment; the first access system is the user selected according to the capability information of the user equipment Access system supported by the device.
  • the inter-system handover capability information acquired by the first acquisition module takes into account the capability of the user equipment, thereby improving the access supported by the user equipment acquired by the first acquisition module.
  • the effectiveness of the system's inter-system handover capability information is conducive to saving network resources.
  • An embodiment of the present invention provides a base station, including:
  • a querying module configured to query, to the user equipment, the inter-system handover capability information of the first access system, where the first access system is an access system that is selected by the user equipment according to the capability information of the user equipment;
  • a forwarding module configured to send the handover capability information to the mobility management network element when receiving the inter-system handover capability information of the first access system sent by the user equipment.
  • the querying module queries the user equipment for the inter-system handover capability information of the first access system supported by the user equipment, which is selected according to the capability information of the user equipment, and sends the information to the mobile terminal through the forwarding module.
  • the security management network element enables the inter-system handover capability information acquired by the mobility management network element to take into account the capabilities of the user equipment, thereby improving the effectiveness of the inter-system handover capability information obtained by the mobility management network element corresponding to the user equipment. Conducive to saving network resources.
  • An embodiment of the present invention provides an acquisition system for inter-system handover capability information, including: a user equipment, a base station, and a mobility management network element;
  • the mobility management network element includes: a first parsing module, configured to acquire capability information of the user equipment; a first acquiring module, configured to acquire a system of the first access system supported by the user equipment Inter-switching capability information; the first access system is an access system supported by the user equipment according to the capability information of the user equipment;
  • the base station includes: a querying module, configured to query a user equipment for inter-system handover capability information of the first access system; and a forwarding module, configured to receive, between the systems of the first access system, sent by the user equipment When the capability information is switched, the handover capability information is sent to the mobility management network element.
  • the capability of the user equipment is taken into consideration, and the information about the switching capability between the systems is obtained, thereby improving the information about the inter-system handover capability of the user equipment acquired by the mobility management network element. Effectiveness is conducive to saving network resources.
  • the embodiment of the present invention provides another method for acquiring the information about the inter-system handover capability, including: acquiring capability information of the user equipment;
  • An embodiment of the present invention provides another mobility management network element, including:
  • a second parsing module configured to acquire capability information of the user equipment
  • a second selection module configured to select, according to capability information of the user equipment, a first access system supported by the user equipment
  • the mapping processing module is configured to map bearer quality of service information of the currently camped system of the user equipment to corresponding bearer service quality information of the first access system, and send the information to the user equipment.
  • the embodiment of the invention provides a system access method, including:
  • the cell change command includes target system information to be switched to;
  • the embodiment of the invention provides a user equipment, including:
  • a triggering module configured to: when receiving a cell change command sent by the current resident system, disconnect a communication connection with the current resident system; the cell change command includes target system information to be switched to;
  • a cause value adding module configured to add, in a RRC connection establishment request, an access cause value corresponding to the cell change command, where the access cause value is used to notify the target system to set according to the access cause value
  • the target system accepts the priority of the control
  • a request sending module configured to send, to the target system, a radio resource control connection establishment request including the access cause value.
  • FIG. 1 is a flowchart of a first embodiment of a method for acquiring inter-system handover capability information according to the present invention
  • FIG. 2 is a signaling diagram of a method for acquiring inter-system handover capability information according to a second embodiment of the present invention
  • FIG. 4 is a schematic diagram of a fourth embodiment of a method for acquiring inter-system handover capability information according to the present invention
  • FIG. 4 is a schematic structural diagram of an embodiment of a mobility management network element according to the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of an acquisition system for inter-system handover capability information according to the present invention
  • FIG. 8 is a flow chart of a first embodiment of a method for acquiring handover capability information between another system according to the present invention
  • FIG. 9 is a signaling diagram of a second embodiment of a method for acquiring handover capability information according to another embodiment of the present invention
  • FIG. 9b is a signaling diagram of a third embodiment of a method for acquiring handover capability information according to another embodiment of the present invention
  • 11 is a flowchart of a first embodiment of a method for accessing a system according to the present invention
  • 12 is a signaling diagram of a second embodiment of a method for accessing a system according to the present invention
  • FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
  • FIG. 1 is a flowchart of a first embodiment of a method for acquiring inter-system handover capability information according to the present invention. As shown in FIG. 1, this embodiment includes:
  • Step 11 Obtain capability information of the user equipment, for example,: by analyzing an attach request (At tach Reques t ) or a location update request (Tracking Area Update Reques t ) sent by the received user equipment, acquiring network capability information of the user equipment, where In the embodiment, the network capability of the user equipment is taken as an example for description.
  • the triggering condition for the MME to obtain the inter-system handover capability information may be: an attach procedure or a location update procedure initiated by the user equipment to the MME; correspondingly, the user equipment initiates an attach to the MME.
  • the request or location update request carries the network capability information of the user equipment.
  • the network capability information of the user equipment may include information about the support capabilities of the user equipment to other access systems.
  • Step 12 The first access system supported by the user equipment is selected according to the capability information of the user equipment and the subscription restriction information acquired in advance, where the capability information of the user equipment may be network capability information of the user equipment, and the subscription restriction information of the user equipment. It is an optional basis for selecting the first access system.
  • the first access system may include: one or more non-current access systems (ie, other access systems) supported by the user equipment selected according to the network capability information of the user equipment and the subscription restriction information.
  • the inter-system handover capability information may be: inter-system handover capability information of one or more other access systems included in the first access system.
  • the inter-system handover capability information may include radio capability information of the first access system supported by the user equipment (ie, the first radio capability information of the embodiment of the present invention).
  • the first wireless capability information includes respective wireless capability information of each of the other access systems.
  • This step is selected according to network capability information of the user equipment and pre-acquired subscription restriction information.
  • the executor of the first access system information may be an MME or an eNB accessed by the user equipment.
  • the MME or the eNB selects the first access system according to the following: the network capability information of the user equipment and the subscription restriction information of the user equipment; the MME or the eNB will simultaneously satisfy the network capability information of the user equipment and the subscription restriction information of the user equipment.
  • the access system is used as the first access system information, that is, when the support capability information of other access systems included in the user equipment network capability, and the access system information permitted in the subscription restriction information of the user equipment, there is a common connection. When the system information is entered, the common access system is selected as the first access system.
  • the access system supported by the user equipment is a GSM EDGE Radio Acces s Network (GERAN) and a universal P-radio access network (Un iver sa l Terres tr ia l Radio Acces s Network).
  • GERAN GSM EDGE Radio Acces s Network
  • MME network side
  • the intersection of the user equipment network capability and the subscription restriction information is: access system GERAN and UTRAN;
  • the MME or eNB selects the access systems GERAN and UTRAN as the effective first access system supported by the user equipment.
  • Step 13 Obtain inter-system handover capability information of the first access system corresponding to the user equipment.
  • the eNB queries the user equipment for the first radio capability information of the first access system.
  • the user equipment sends the first radio capability information of the first access system corresponding to the user equipment to the eNB, the eNB forwards the first radio capability information.
  • the other access system information supported by the network capability of the user equipment and the limitation of the user equipment on the network side are considered, and the network capability information and the subscription restriction information of the user equipment are used.
  • the access system that is allowed to be used in the information improves the availability of the information about the inter-system handover capability of the access system supported by the user equipment, and is conducive to saving network resources.
  • the embodiment of the present invention is an example of a method for acquiring an inter-system handover capability information according to an embodiment of the present invention, in which the user equipment is currently in the LTE system and the user equipment initiates an attach request procedure to the MME.
  • . 2 is a signaling diagram of a second embodiment of a method for acquiring inter-system handover capability information according to the present invention. The difference between this embodiment and the embodiment shown in FIG. 1 is that at least the execution entity of the first radio access system is the MME.
  • the inter-system handover capability information includes the first radio capability information of the first access system supported by the user equipment; the basis for the MME to select the first radio access system (hereinafter referred to as the first decision condition) is: Other access system support capability information and pre-acquired subscription restriction information of the user equipment in the network capability information of the user equipment. As shown in FIG. 2, this embodiment includes:
  • Step 21 The UE sends an At tach Reques t message to the ⁇ E, where the attach request message includes network capability information of the user equipment.
  • Step 22 The MME obtains network capability information of the user equipment included in the attach request message by using an At tach Reques t message; the network capability information includes other access system information supported by the user equipment.
  • ⁇ E selects the intersection of the UE support for other RATs of the non-current access system and the access restriction information of the user equipment in the network capability information of the user equipment, that is, the common
  • the access system is used as the first access system; the selected first access system is an effective access system supported by the user equipment.
  • the selected first access system may include one or more other access systems that satisfy the first decision condition information.
  • Step 23 The MME sends first access system information to the first base station (hereinafter referred to as eNB1), where the first access system information can be used as an indication parameter of an existing message of the communication protocol, such as: an initial context establishment request (INITIAL CONTEXT)
  • eNB1 the first base station
  • the first access system information can be used as an indication parameter of an existing message of the communication protocol, such as: an initial context establishment request (INITIAL CONTEXT)
  • IITIAL CONTEXT initial context establishment request
  • a RAT Indicating for UE radio capabi ty is used to trigger the eNB1 to query the user equipment for the wireless capability information of the first access system.
  • a new message for carrying the first access system information may be added to the MME and the eNB1, or the first access system information may be sent to the MME as an independent message, or the first An access system information is carried in other messages existing in the communication protocol (not shown in the figure), and is used to trigger the eNB1 to query the user equipment for the wireless capability information of the first access system.
  • Step 24 eNB1 receives and acquires an initial context setup request (INITIAL CONTEXT SETUP) REQUEST)
  • the indication parameter (first access system information) in the message, the user equipment capability query request (UECapabi li tyEnquiry) message is sent to the UE, and the user equipment capability query request (UECapabili tyEnquiry) message carries the first access system information And for querying the user equipment for wireless capability information of the first access system supported by the user equipment.
  • Step 25 The UE reports, to the eNB1, the first wireless capability information of the first access system supported by the user equipment, where the first wireless capability information is available as the user equipment capability, when the UE receives the user equipment capability query request (UECapabi li tyEnquiry) message.
  • UECapabi linlnformation A message (UECapabi linlnformation) message is reported to eNB1.
  • Step 26 The eNB1 sends the acquired first radio capability information supported by the user equipment to the MME by using a UE CAPABILITY INFO INDICATION message.
  • the MME selects the eNB1 to query the user equipment for the first wireless capability information according to the other access system support capability information and the network side subscription restriction information in the network capability information of the user equipment.
  • the first access system information is such that the acquired inter-system handover capability information is within the support range of the user equipment access system, and is an access system allowed in the user equipment subscription restriction information, thereby improving the acquired and
  • the corresponding inter-system handover capability information of the user equipment is effective, which is conducive to saving network resources.
  • the triggering condition of the embodiment may also be a location update process for the user equipment, and the method for obtaining the wireless capability information of the user equipment to access the system is similar to the embodiment, and details are not described herein.
  • FIG. 3 is a signaling diagram of a third embodiment of a method for acquiring inter-system handover capability information according to the present invention.
  • the difference between this embodiment and the embodiment shown in FIG. 2 is that at least the embodiment of the first radio access system is the first base station (eNB1).
  • the inter-system handover capability information includes the first radio capability information of the first access system supported by the user equipment; the first base station (eNB1) selects the first radio access system as the first decision condition: the user
  • the access capability support information of the device and the subscription restriction information of the user equipment set by the network side are included in the network capability information of the device.
  • this embodiment includes:
  • Step 31 The UE sends an attach request (At tach Reques t ) message to the ⁇ E, the attach request
  • the message includes network capability information of the user equipment.
  • Step 32 The MME obtains the network capability information of the user equipment included in the attach request message by parsing the attach request (At tach Reques t ) message; and the support capability information of the other access systems in the network capability information of the user equipment and the network side setting
  • the subscription restriction information of the user equipment is sent to the eNB1; specifically, it is sent to the eNB1 by being carried in an existing INITIAL CONTEXT SETUP REQUEST message.
  • the manner for carrying the first decision condition information may include: adding a new message for carrying the first decision condition information, or using the first decision condition information as a
  • the independent message is sent to the eNB1, or the first decision condition information is carried in other messages existing in the communication protocol; or a parameter in the existing message of the communication protocol, a newly added parameter, and an existing parameter are used.
  • Some fields or other means inform the first base station eNB1.
  • the parameter names are not limited to the scope of application of the embodiments of the present invention, that is, there may be no similar names in some systems, but the technical solutions in the embodiments of the present invention cannot be considered to be applicable to these systems. show) .
  • Step 33 eNB1 receives an initial context establishment request (INITIAL CONTEXT SETUP)
  • the first decision condition information carried in the message is selected according to the first decision condition information, and the valid first access system supported by the user equipment is selected.
  • Step 34 The eNB1 sends a User Equipment Capability Inquiry Request (UECapabi1 tyEnquiry) message to the UE, where the User Equipment Capability Request (UECapabi tyEnquiry) message carries the first access system information (RAT Type).
  • UECapabi1 tyEnquiry User Equipment Capability Inquiry Request
  • UECapabi tyEnquiry User Equipment Capability Request
  • Step 35 The UE reports the first radio capability information of the first access system supported by the user equipment to the eNB1, where the UE receives the user equipment capability query request (UECapabili ENTEnquiry) message, where the first radio capability information can be carried on the user equipment.
  • the capability information (UECa pab ili tylnformat ion ) message is reported to eNB1.
  • Step 36 The eNB1 reports the acquired first radio capability information supported by the user equipment to the MME by using a UE CAPABILITY INFO INDICATION message.
  • the eNB1 in the process of the user equipment initiating the attach request, is configured according to the first decision condition. Selecting the capability information of the other access systems in the network capability information of the user equipment and the subscription restriction information of the network side, and selecting the first access system that the eNB 1 needs to query the user equipment for the first wireless capability information, so as to obtain the inter-system handover.
  • the capability information is within the support range of the user equipment, and is an access system allowed in the user equipment subscription restriction information, thereby improving the inter-system handover capability of the acquired access system supported by the user equipment (eg, wireless capability)
  • the effectiveness of information is conducive to saving network resources.
  • the triggering condition of the embodiment may also be a user equipment to initiate a location update (Tracking Area Upda Re Res) process, which implements a method for acquiring user equipment access system wireless capability information and the implementation
  • a location update Tracking Area Upda Re Res
  • the examples are similar and will not be described again.
  • FIG. 4 is a signaling diagram of a fourth embodiment of a method for acquiring inter-system handover capability information according to the present invention.
  • the difference between this embodiment and the embodiment shown in FIG. 3 is that at least after the first base station (eNB1) selects the first radio access system, the UE changes the location, and the second base station of the current system of the UE is located. (eNB 2 ) Select a second wireless access system.
  • the inter-system handover capability information includes first radio capability information of the first access system supported by the user equipment; and the basis of the first radio access system selected by the first base station (eNB1) (hereinafter referred to as a second decision condition) Is: the support capability information of the other access systems in the network capability information of the user equipment, the subscription restriction information of the user equipment set by the network side, and the current network configuration information of the eNB1 (hereinafter referred to as the first configuration information);
  • the basis for the second base station (eNB2) to select the second radio access system information (hereinafter referred to as the third decision condition) is: according to the support capability information of other access systems in the network capability information of the user equipment, and the user set on the network side
  • the subscription restriction information of the device, the first wireless capability information of the user equipment delivered by the MME, and the current network configuration information of the eNB2 (hereinafter referred to as the second network configuration information).
  • the second access system is an effective access system supported by the user equipment selected according to the third decision condition.
  • the second access system may include one or more other access systems supported by the user equipment that satisfy the third decision condition information. If the selected second access system includes multiple other access systems, the second wireless capability information includes corresponding wireless capability information of each of the other access systems included in the second access system.
  • Step 41 The UE sends an attach request (At tach Reques t ) message to the MME, where the attach request message includes network capability information of the user equipment.
  • Step 42 The MME obtains the network capability information of the user equipment included in the attach request message by parsing the attach request (At tach Reques t ) message; and the support capability information of the non-current access system of the network capability information of the user equipment and the network side
  • the set subscription restriction information of the user equipment is sent to the eNB1; specifically, it is sent to the eNB1 by being carried in an existing initial context establishment request (INITIAL CONTEXT SETUP REQUEST) message.
  • Step 43 The eNB1 receives the first decision condition information carried in the INITIAL CONTEXT SETUP REQUEST message, and selects the first access system information according to the second decision condition information; the second decision condition information includes the first Determining condition information and first network configuration information of the eNB 1; that is, when the support capability information of the other access systems included in the user equipment network capability is common to the access system information allowed in the subscription restriction information When accessing the system information, and the cell information of the common access system exists in the first network configuration information of the eNB1, the common access system information is selected as the first access system information.
  • Step 44 The eNB1 sends a User Equipment Capability Query Request (UECapabi1 tyEnquiry) message to the UE, where the UECapabi tyEnquiry message carries the first access system information (RAT Type), and is used to query the user equipment.
  • UECapabi1 tyEnquiry User Equipment Capability Query Request
  • RAT Type first access system information
  • Step 45 The UE reports, to the eNB1, the first wireless capability information of the first access system supported by the user equipment, where the first wireless capability information is available as the user equipment capability, when the UE receives the user equipment capability query request (UECapabili tyEnquiry) message.
  • UECapabili tyEnquiry user equipment capability query request
  • a message (UECapabi linlnformation) message is reported to eNB1.
  • Step 46 The eNB1 sends the obtained first radio capability information supported by the user equipment to the MME, for example, the eNB1 may report the received user equipment capability information to the MME by using the UE CAPABILITY INFO INDICATION message 4. .
  • Step 47 The MME receives and stores the first wireless capability information of the first access system corresponding to the user equipment. After the UE completes the attach procedure, it returns to the idle (RRC-IDLE) state of the Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • the user equipment in the idle state may move in position and camp on the new second base station (hereinafter referred to as eNB2), but does not trigger the location update process.
  • the UE initiates a service request procedure under the eNB2, and the MME sends the stored first wireless capability information of the user equipment and the first decision condition information to the eNB2.
  • the eNB2 determines, according to the third decision condition information (including: the first decision information sent by the ⁇ E, the first radio capability information, and the current network configuration information of the eNB2 (the second network configuration information)), whether the eNB2 further needs to query the user equipment for correlation.
  • the wireless capability of the access system if necessary, the eNB2 initiates a query process of the wireless capabilities of the user equipment, and reports the result of the query to the MME for storage.
  • the specific process is as follows:
  • Step 48 The UE moves from the eNB1 to the eNB2, and initiates a service request process within the coverage of the eNB2: the UE sends a Service Request message to the MME.
  • Step 49 When receiving the service request (Service Request) message sent by the UE, the MME sends the first judgment condition information of the user equipment and the first radio capability information of the user equipment currently stored by the MME to the eNB2 (UE radio capability stored)
  • the first decision condition information includes: UE Support for other RATs in the network capability information of the user equipment, and subscription restriction information (Access Restriction) of the user equipment acquired in advance by the network side. .
  • the first decision condition information (UE Support for other RATs, Access Restriction, ) and the first wireless capability information that the MME sends to the eNB2 are available! It is contained in the existing INITIAL CONTEXT SETUP REQUEST message of the communication protocol.
  • a new message for carrying the first decision condition information and the first wireless capability information may be added to the interaction between the MME and the eNB2, or the first decision condition information and the first wireless capability information may be used as an independent
  • the message is sent to the eNB2, or the first decision condition information and the first radio capability information are carried in other messages existing in the communication protocol (not shown in the figure).
  • Step 410 The eNB2 receives the first decision condition information and the first radio capability information sent by the MME, and combines the second network configuration information of the eNB2, that is, whether the eNB2 needs to supplement the query to the user equipment by using the second decision condition information. Second access system for supported wireless capability information Information.
  • the specific decision process may include: when the user equipment network capability includes other access system support capability information, and the access system information permitted in the subscription restriction information, the common access system information, and the first wireless capability information When the common access system information is not completely included, but the cell information of the common access system not included in the first radio capability information exists in the second network configuration information of the eNB2, the common access system information is selected as the second Accessing system information; wherein, the second access system is an effective access system supported by the user equipment selected according to the third decision condition information.
  • the other access systems supported by the user equipment are GER AN and UTR AN;
  • the subscription information of the user equipment stored on the network side (MME) is the access system allowed by the user to be GERAN and UTRAN;
  • the presence of the subscription restriction information is: the access system GERAN and the UTRAN; and because the first network configuration information of the eNB 1 has the cell information of the access system GERAN, but there is no cell information of the access system UTRAN,
  • the first wireless capability information stored by the MME includes only the wireless capability of the access system GSM, and does not include the wireless capability of the access system UTRAN; if the second network configuration information of the eNB2 includes the cell information of the access system UTRAN, at this time,
  • the eNB2 selects the access system UTRAN as the access system that needs to supplement the wireless capability information supported by the user equipment, and performs step 411.
  • the eNB2 does not trigger. Query the access device wireless capability information to the user equipment, but store the MME delivered the first Wireless capability information, out of this process.
  • Step 411 The eNB2 sends a User Equipment Capability Query Request (UECapab i tyEnquiry) message to the UE, where the User Equipment Capability Request (UECapabili tyEnry) message carries the second access system indication information (RAT Type), The second wireless capability information of the second access system supported by the user equipment is queried to the user equipment.
  • UECapab i tyEnquiry User Equipment Capability Request
  • UECapabili tyEnry carries the second access system indication information (RAT Type)
  • Step 412 The UE reports, to the eNB2, the second wireless capability information of the second access system supported by the user equipment, where the second wireless capability information can be carried in the user, when the UE receives the user equipment capability query request (UECapabili tyEnry) message.
  • the device capability information (UECapabi ty Information) message 4 is reported to eNB2.
  • Step 413 The eNB2 sends the acquired second wireless capability information supported by the user equipment to the MME.
  • the eNB2 may report the received user equipment capability information to the MME by using the UE CAPABILITY INFO INDICATION message 4.
  • Step 414 The MME receives and stores the second wireless capability information of the second access system corresponding to the user equipment, that is, the second wireless capability information is added to the wireless capability information of the user equipment.
  • the user equipment access system wireless capability information acquisition process may be triggered, that is, according to the third decision condition information. Determining whether to acquire the wireless capability information of the second access system supported by the user equipment, and if necessary, acquiring the second wireless capability information of the second access system supported by the user equipment, and sending the information to the MME for storage.
  • the flexibility of the method for acquiring the wireless access capability of the user equipment access system is increased, and the information about the obtained inter-system handover capability information corresponding to the user equipment is improved, which is beneficial to saving network resources.
  • FIG. 5 is a schematic structural diagram of an embodiment of a mobility management network element according to the present invention. As shown in FIG. 5, the embodiment includes a first parsing module 51 and a first obtaining module 52.
  • the first parsing module 51 is configured to obtain the network capability information first acquiring module 52 of the user equipment that is included in the attach request or the location update request by using the attaching request or the location update request of the received user equipment.
  • the inter-system handover capability information of the first access system may include first radio capability information of the access system supported by the user equipment.
  • the mobility management network element can also include a first selection module 53.
  • the first selection module 53 is configured to select the first access system according to network capability information of the user equipment (such as support capability information of other access systems in the network capability information) and the pre-acquired subscription restriction information; wherein, An access system may include a non-current access system (ie, other access systems) of one or more user equipments selected according to network capability information and subscription restriction information of the user equipment.
  • the first obtaining module 52 in the mobility management network element may include a first sending unit 521 and a first storage unit 522.
  • the first sending unit 521 is configured to send the selected first access system to the first base station.
  • the first storage unit 522 is configured to store the first wireless capability information when receiving the first wireless capability information of the first access system that is queried by the first base station to the user equipment.
  • the first obtaining module 52 in the mobility management network element may include a second sending unit 523 and a second storage unit 524.
  • the second sending unit 523 is configured to send network capability information and subscription restriction information of the user equipment to the first base station.
  • the second storage unit 524 is configured to receive the network capability information and the subscription restriction information of the first base station according to the user equipment, or according to the network capability information of the user equipment, the subscription restriction information, and the first network configuration information of the first base station,
  • the first wireless capability information is stored when the first wireless capability information of the first access system that needs to obtain the inter-system handover capability information is selected.
  • the specific workflow of the mobility management network element can be referred to the description of the embodiment corresponding to FIG. 3, and details are not described herein.
  • the inter-system handover capability information may further include second radio capability information of the second access system supported by the user equipment, where the second access system includes the second base station according to the network capability information of the user equipment, the subscription restriction information, and the a wireless capability information and second network configuration information of the second base station, and one or more other access systems supported by the selected user equipment; and correspondingly, the second wireless capability information includes each of the selected second access systems
  • the first obtaining module 52 in the corresponding wireless capability letter mobility management network element of the other access system may further include a third storage unit 525.
  • the third storage unit 525 is configured to: store, by the second base station, the second wireless capability information of the second access system that is correspondingly acquired by the second base station, and store the second wireless capability information; the second base station is the user equipment a destination base station after the base station moves, and the second access system is the second base station supporting the selected user equipment according to the network capability information of the user equipment, the subscription restriction information, the first wireless capability information, and the second network configuration information of the second base station. Other access systems.
  • the first acquisition module acquires inter-system handover capability information of the first access system information supported by the user equipment, which is selected according to the network capability information and the subscription restriction information of the user equipment, so that the acquired inter-system handover capability information is integrated.
  • the network capability of the user equipment and the limitation of the user equipment on the network side (for example, the subscription restriction information of the user equipment) are considered, thereby improving the first acquisition mode.
  • the validity of the inter-system handover capability information corresponding to the user equipment acquired by the block is conducive to saving network resources.
  • FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present invention. As shown in FIG. 6, the embodiment includes a query module 61 and a forwarding module 62.
  • the querying module 61 is configured to query the user equipment for the inter-system handover capability information of the first access system, where the first access system is selected by the user equipment according to the network capability information and the subscription restriction information of the user equipment. Access to the system.
  • the forwarding module 62 is configured to send the handover capability information to the mobility management network element when receiving the inter-system handover capability information of the first access system sent by the user equipment.
  • the inter-system handover capability information of the first access system may include first radio capability information of the first access system supported by the user equipment.
  • the base station of this embodiment may further include a second selection module 63 on the basis of the technical solution of the embodiment.
  • the second selecting module 63 is configured to: when receiving the network capability information and the subscription restriction information of the user equipment sent by the mobility management network element, according to the network capability information and the subscription restriction information of the user equipment, or The network capability information, the subscription restriction information, and the current network configuration information of the base station of the user equipment are used to select the first access system information.
  • the specific working process of the base station can be referred to the description of the embodiment corresponding to FIG. 3, and details are not described herein again.
  • the inter-system handover capability information includes first radio capability information of the first access system supported by the user equipment and second radio capability information of the second access system.
  • the base station of this embodiment may further include a third selection module 64, based on the technical solution of the embodiment.
  • the third selection module 64 is configured to: according to the network capability information, the subscription restriction information, and the first wireless capability information of the user equipment delivered by the mobility management network element, according to the network capability information of the user equipment, The subscription restriction information, the first wireless capability information, and the current network configuration information of the base station are selected, and the second access system is selected.
  • the query module 61 is further configured to query the user equipment for the inter-system handover capability information of the second access system (eg, the second radio capability information); the forwarding module 62 is further configured to use the second access obtained by the query module 61.
  • the switching capability information of the system eg, the second wireless capability information
  • the specific working process of the base station can be referred to the description of the embodiment corresponding to FIG. 4, and details are not described herein again.
  • the query module queries the user equipment according to the network capability information of the user equipment and
  • the inter-system handover capability information of the first access system supported by the user equipment selected by the subscription restriction information is sent to the mobility management network element by the forwarding module, so that the inter-system handover capability information acquired by the mobility management network element is comprehensively considered.
  • the network capability of the user equipment and the limitation of the user equipment on the network side (for example, the subscription restriction information of the user equipment), thereby improving the validity of the inter-system handover capability information obtained by the mobility management network element and corresponding to the user equipment, Conducive to saving network resources.
  • FIG. 7 is a schematic structural diagram of an embodiment of an acquisition system for inter-system handover capability information according to the present invention.
  • the embodiment includes a mobility management network element (MME) 71, a base station (eNB) 72, and a user equipment (UE) 73.
  • MME mobility management network element
  • eNB base station
  • UE user equipment
  • the user equipment 73 communicates with the mobility management network element 71 through the base station 72.
  • MME mobility management network element
  • eNB base station
  • UE user equipment
  • the network capability of the user equipment and the limitation of the user equipment on the network side are comprehensively considered, and the information about the handover capability between the systems is obtained, thereby improving the mobility management network element acquired by the mobility management network element.
  • the corresponding inter-system handover capability information of the device is effective, which is conducive to saving network resources.
  • FIG. 8 is a flow chart of a first embodiment of a method for acquiring handover capability information between another system according to the present invention. As shown in FIG. 8, this embodiment includes:
  • Step 81 Obtain network capability information of the user equipment included in the attach request by parsing the received attach request or the location update request of the user equipment.
  • Step 82 Select, according to the network capability information of the user equipment and the subscription restriction information acquired in advance, the first access system supported by the user equipment.
  • the common connection is selected.
  • the incoming system is the first access system.
  • Step 83 Mapping bearer quality of service (QoS) information of the currently camped system of the user equipment to corresponding bearer quality of service (QoS) information of the first access system, and sending the mapped quality of service (QoS) information to the mapping User equipment.
  • QoS quality of service
  • the QoS information is supported by all the access systems, and the prior art only refers to the network capability of the user equipment, and does not consider the limitation of the user equipment on the network side (for example, the subscription restriction information of the user equipment acquired in advance by the network side), Therefore, it is possible to map the bearer QoS information of some invalid access systems, and transmit the bearer QoS information processed by these mappings to the user equipment, resulting in waste of resources.
  • the network capability information of the user equipment and the user subscription information on the network side are comprehensively considered before the bearer service quality information mapping process of the different access systems is performed. Therefore, the obtained access corresponding to the user equipment can be improved.
  • the effectiveness of the system's inter-system handover capability information eg, quality of service information is conducive to saving network resources.
  • the user equipment when the user equipment triggers the QoS mapping process triggered by the emergency call, or when the configuration attribute of the MME does not support the subscription restriction information of the user equipment, the user may not be introduced on the MME side.
  • the subscription restriction information of the device is used as the basis for selecting the first access system information.
  • FIG. 9a is a signaling diagram of a second embodiment of a method for acquiring handover capability information between another system according to the present invention.
  • the difference between the embodiment and the embodiment shown in FIG. 8 is that at least the triggering condition of the first access system is selected by the MME, and the MME triggers the selection of the first access system when receiving the user equipment attach request.
  • the inter-system handover capability information includes bearer service quality information mapped by the current camping system (LTE system) of the user equipment and the first access system.
  • the MME selects the first radio access system information according to the network capability information of the user equipment (such as: other access system support capability information in the network capability information) and the subscription restriction information of the user equipment acquired in advance by the network side.
  • this embodiment includes:
  • Step 91 The UE sends an At tach Reques t message to the MME to initiate an Attach process.
  • the At tach Reques t message includes network capability information of the user equipment.
  • Step 92a After receiving the message, the MME selects the first access system according to the first decision condition information. And the QoS information mapping carried by the LTE system of the access system where the user equipment is currently located is performed on the selected first access system information.
  • the selecting the first access system information may include: the access capability information of the access system included in the user equipment network capability, and the access system information permitted to be used in the subscription restriction information of the user equipment acquired in advance by the network side, When accessing system information, the common access system is selected as an effective first access system supported by the user equipment.
  • the selected first access system may include one or more other access systems supported by the user equipment. If the first access system includes multiple access systems supported by the user equipment, the bearer QoS information of the currently camped system (LTE system) of the user equipment is mapped to the first interface when the mapping process for carrying the QoS information is performed. Each other access system included in the system bears corresponding QoS information.
  • LTE system currently camped system
  • Step 93a The MME sends the bearer QoS information after the mapping process is performed by the attaching step 92a to the UE.
  • the bearer QoS information after the mapping process can be carried in a certain parameter of the existing message of the communication protocol, for example, after the mapping process is performed.
  • the bearer QoS information is carried in the session management configuration information (Session Management Configuration Information) of the At tach Accept message, and is sent to the UE.
  • Step 94a When receiving the Attach Accept message, the UE stores the bearer QoS information (not shown) after the mapping process in step 92a, and sends an At tach Complete message to the MME.
  • the triggering condition of the embodiment may also be used for the user equipment to initiate the location update process, and the method for implementing the QoS mapping is similar to the embodiment, and details are not described herein.
  • the network capability information of the user equipment and the user subscription information of the network side are comprehensively considered. Therefore, the effective first access system information may be selected, and Performing mapping processing on the bearer QoS information of the current LTE system and the bearer QoS information of the first system, thereby improving the effectiveness of the acquired access system QoS information corresponding to the user equipment, and saving network resources.
  • the subscription restriction information of the user equipment may not be introduced on the MME side as the selection basis of the first access system information.
  • FIG. 9b is a signaling diagram of a third embodiment of a method for acquiring handover capability information between another system according to the present invention.
  • the triggering condition of the first access system in this embodiment may be that the first access system is triggered when the device receives the bearer information change request corresponding to the user equipment. Selection.
  • the bearer information change request may include: creating or modifying a default bearer request, creating or modifying a dedicated bearer request, and the like.
  • the technical solution of the method for acquiring the handover capability information of another system in the present invention is described below by taking the example of creating a dedicated bearer request.
  • the MME may store the acquired network capability information of the user equipment. As shown in FIG. 9b, this embodiment includes:
  • Step 91b A Packet Data Network Gateway (PDN-GW) sends a Create Dedicated Bearer Reques t to the MME to request to establish a dedicated bearer for the UE.
  • PDN-GW Packet Data Network Gateway
  • Step 92b After receiving the message, the MME selects the first access system information according to the first decision condition information, and performs the bearer QoS information of the first access system and the current location of the user equipment on the selected first access system information. QoS information mapping carried by the access system LTE system.
  • the MME sends the bearer QoS information after the mapping processing in step 92b to the UE by using the base station (eNB).
  • the bearer QoS information after the mapping processing can be carried in the existing message of the communication protocol, for example, after the mapping process is performed.
  • the bearer QoS information bearer is sent to the UE in an Act ivate dedicated EPS bearer context reques t message.
  • Step 94b When the UE receives the Activate Authentic EPS bearer context reques t message, the step 92b stores the QoS information (not shown) after the mapping process, and passes through the base station (eNB). Sending an Authentic EPS bearer context accept message to the MME.
  • Step 95b when the MME receives the activation of the proprietary EPS bearer context accept (Act ivate Dedi ca ted EPS bearer context accept )
  • Act ivate Dedi ca ted EPS bearer context accept When a message is sent, a message creating a Crea te Dedi ted Bearer Response is sent to the PDN-GW.
  • the MME when the default bearer or the dedicated bearer information of the user equipment is changed, the MME comprehensively considers the network capability information of the user equipment and the user subscription information on the network side, and optionally extracts the valid first access system information, and The bearer QoS information of the current LTE system performs mapping processing with the bearer QoS information of the first system, thereby improving the effectiveness of the acquired access system carrying QoS information corresponding to the user equipment, and saving network resources.
  • the bearer information change request in this embodiment may be: creating a default bearer request, modifying a default bearer request, or modifying a dedicated bearer request; and the method for implementing the bearer QoS mapping is similar to the embodiment. No longer.
  • the user equipment when the user equipment triggers the QoS mapping process triggered by the emergency call, or when the configuration attribute of the MME does not support the subscription restriction information of the user equipment, the user may not be introduced on the MME side.
  • the subscription restriction information of the device is used as the basis for selecting the first access system information.
  • FIG. 10 is a schematic structural diagram of another mobility management network element according to the present invention. As shown in FIG. 10, the embodiment includes: a second parsing module 101, a second selecting module 102, and a mapping processing module 103.
  • the second parsing module 101 is configured to obtain network capability information of the user equipment included in the attach request by parsing the received attach request or the location update request of the user equipment.
  • the second selection module 102 is configured to select the first access system supported by the user equipment according to the network capability information of the user equipment and the subscription restriction information acquired in advance.
  • the mapping processing module 103 is configured to map bearer quality of service (QoS) information of the currently camped system of the user equipment to corresponding bearer quality of service (QoS) information of the first access system, and send the information to the user equipment.
  • QoS bearer quality of service
  • the embodiment may further include a storage module 104 and a third selection module 105.
  • the storage module 104 is configured to store the network capability information of the user equipment acquired by the second parsing module 101.
  • the third selection module 105 is configured to receive the bearer information change request corresponding to the user equipment.
  • the first access system supported by the user equipment is selected according to the network capability information and the subscription restriction information of the user equipment stored in the storage module 104.
  • the selected first access system information is sent to the mapping processing module 103.
  • the second selection module or the third selection module selects a valid first access system supported by the user equipment according to the network capability information of the user equipment and the user subscription information of the user equipment, and performs a system by using a mapping processing module.
  • the mapping process of the service quality information is carried, so that the availability of the inter-system handover capability information (such as QoS information) of the access system corresponding to the user equipment can be improved, which is conducive to saving network resources.
  • FIG. 11 is a flowchart of a first embodiment of a system access method according to the present invention. As shown in Figure 11, this embodiment includes:
  • Step 111 When receiving a cell change command (Cel l Change Order, CCO for short) sent by the current resident system, disconnect the communication connection with the currently camped system; the cell change command includes target system information to be switched to. .
  • a cell change command (Cel l Change Order, CCO for short) sent by the current resident system
  • Step 112 Add an access cause value (es tabi li shmentCauseCCO) corresponding to the cell change command (CC0) in a Radio Resource Control (RRC) connection establishment request (RRCConnectionReques t), the access reason The value is used to notify the target system to set the priority of the target system admission control according to the access reason value.
  • RRC Radio Resource Control
  • Step 113 Send a radio resource control connection establishment request (RRCConnectionReques t) including an access cause value (es tabi l i shmentCauseCCO ) to the target system.
  • RRCConnectionReques t radio resource control connection establishment request
  • an access cause value es tabi l i shmentCauseCCO
  • the user equipment During the process of the inter-system handover by the user equipment through the CC0 mode, the user equipment currently camps on the system before the user equipment performs the system handover, and does not request the target system that the user equipment needs to switch to allocate dedicated resources required for the user equipment to communicate.
  • the system retains the target system information to the user equipment through the CC0 command.
  • the user equipment receives the CC0 command, it initiates an RRC connection establishment process to the target system for requesting the target system to allocate dedicated resources required for communication to the user equipment.
  • Acceptance control processing priority of the target system by using CC0 mode compared with other request methods
  • the admission control process of the access target system has a high priority, that is, when the user equipment accesses the LTE system due to CC0, its priority should be relatively high, that is, when the eNB performs admission control, it should not be easily rejected due to CC0.
  • the user equipment connected to the cause ensures communication quality.
  • the triggering reason for initiating the RRC connection establishment (target system access) is CC0, and thus the user equipment is regarded as a user equipment that the ordinary requesting system accesses, thereby increasing the possibility that the user equipment is rejected by the target system. Therefore, in the prior art, since the target system cannot know whether the user equipment is accessed due to CC0 reasons, the possibility that the user equipment accessed due to CC0 is rejected is increased.
  • the cause value corresponding to the CC0 mode is added to the RRC connection establishment request message sent to the target system, so that the target system can learn the triggering reason of the current system access. Therefore, it is beneficial to increase the probability of being successfully accepted by the target system.
  • FIG. 12 is a signaling diagram of a second embodiment of a system access method according to the present invention.
  • the difference between the embodiment and the embodiment shown in FIG. 11 is that, in this embodiment, the current camping system of the user equipment is the GERAN system, and the application scenario that the user equipment needs to be switched to the LTE system (target system) by using the CC0 access mode is For example, the technical solution of the embodiment of the system access method of the present invention is described. As shown in Figure 12, this embodiment includes:
  • Step 121 When the UE currently resides in the GERAN system (currently resident system) and finds that there is an LTE system cell with better signal quality, the UE does not request the LTE system to allocate dedicated bearer resources required for communication to the user equipment, but to the UE.
  • the cell change command (CC0) is sent, and the LTE cell information, such as the frequency resource and system information of the LTE cell, is carried in the cell change command (CC0).
  • Step 122 The UE disconnects the communication connection with the GERAN system, and sends an access cause value (es tab ili shmentCauseCCO ) corresponding to the cell change command (CC0) to the base station eNB of the LTE cell (target system) (not shown in the figure) RRCConnect ionReques t (es tab li shmentCauseCCO) message; the access cause value is used Notifying the eNB that the access reason value preferentially accepts the system access of the user equipment.
  • an access cause value es tab ili shmentCauseCCO
  • CC0 cell change command
  • RRCConnect ionReques t es tab li shmentCauseCCO
  • Step 123 When the base station eNB of the LTE cell (target system) accepts the system access of the user equipment, send a RRC Connection Setup (RRC Connection Setup) message to the UE to notify the user equipment that the LTE system has accepted the system of the user equipment.
  • RRC Connection Setup RRC Connection Setup
  • the user equipment is assigned a dedicated resource required for communication.
  • Step 124 When receiving the RRCConnection Setup (RRCConnection Setup) message, the UE sends a RRCConnection Complete Complete (RRCConnectionCompleteComplete) message to the base station eNB of the LTE cell (target system).
  • RRCConnectionCompleteComplete RRCConnection Complete Complete
  • the cause value corresponding to the CC0 mode is added to the RRC setup request message sent by the target LTE system, so that the target LTE system can learn the trigger cause of the current system access, thereby It is beneficial to improve the probability of being successfully accepted by the LTE system.
  • FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to the present invention. As shown in FIG. 13, the embodiment includes: a trigger module 131, a cause value adding module 132, and a request sending module 133.
  • the triggering module 131 is configured to disconnect the communication connection with the current resident system when receiving the cell change command sent by the current camping system; the cell change command includes target system information to be switched to.
  • the cause value adding module 132 is configured to add an access cause value corresponding to the cell change command in the RRC connection establishment request, where the access cause value is used to notify the target system to set according to the access cause value.
  • the target system accepts the priority of the control.
  • the request sending module 133 is configured to send a wireless resource control connection establishment request including the access cause value to the target system.
  • the cause value adding module adds a radio resource control connection establishment request message sent to the target system.
  • the cause value corresponding to the CC0 mode is sent to the target system through the sending module, so that the target system can know the triggering reason for the user equipment to initiate the access of the current system, thereby facilitating the probability of being successfully accepted by the target system.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

Abstract

L'invention concerne un procédé, un dispositif et un système d'obtention d'une information relative à la capacité de transfert intercellulaire entre systèmes, ainsi qu'un procédé et un dispositif d'accès à un système. Le dispositif d'obtention d'une information relative à la capacité de transfert intercellulaire entre systèmes comprend un élément d'un réseau de gestion mobile et une station de base. Le dispositif d'accès à un système comprend un équipement utilisateur. Selon le procédé d'obtention d'une information relative à la capacité de transfert intercellulaire entre systèmes une information relative à la capacité dudit équipement utilisateur est obtenue; un premier système d'accès accueilli par ledit équipement utilisateur est sélectionné à partir de l'information relative à la capacité dudit équipement utilisateur; une information relative à la capacité de transfert intercellulaire entre systèmes dudit premier système d'accès est obtenue. L'invention permet d'obtenir plus efficacement une information relative à la capacité de transfert intercellulaire entre systèmes d'un système d'accès accueillant un équipement utilisateur et d'économiser les ressources d'un réseau.
PCT/CN2009/072061 2008-08-01 2009-06-01 Procédé, dispositif et système d'obtention dune information relative à la capacité de transfert intercellulaire entre systèmes et d'accès à un système WO2010012176A1 (fr)

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CN2008101175737A CN101640879B (zh) 2008-08-01 2008-08-01 系统间切换能力信息获取和系统接入的方法、装置及系统
CN200810117573.7 2008-08-01

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