WO2014079051A1 - 通信方法、用户设备和统一无线控制器 - Google Patents

通信方法、用户设备和统一无线控制器 Download PDF

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Publication number
WO2014079051A1
WO2014079051A1 PCT/CN2012/085206 CN2012085206W WO2014079051A1 WO 2014079051 A1 WO2014079051 A1 WO 2014079051A1 CN 2012085206 W CN2012085206 W CN 2012085206W WO 2014079051 A1 WO2014079051 A1 WO 2014079051A1
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WO
WIPO (PCT)
Prior art keywords
communication network
signaling
user equipment
src
connection
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PCT/CN2012/085206
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English (en)
French (fr)
Inventor
房明
陈燕燕
谭斌
邢平平
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/085206 priority Critical patent/WO2014079051A1/zh
Priority to CN201280002184.4A priority patent/CN103229548B/zh
Priority to EP12888748.6A priority patent/EP2925041A4/en
Publication of WO2014079051A1 publication Critical patent/WO2014079051A1/zh
Priority to US14/719,736 priority patent/US9706462B2/en
Priority to US15/595,727 priority patent/US20170257809A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/144Reselecting a network or an air interface over a different radio air interface technology
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points

Definitions

  • Embodiments of the present invention relate to the field of wireless communications, and more particularly, to a communication method, a user equipment, and a unified wireless controller. Background technique
  • RATs Radio Access Technology
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • the communication between the UE (User Equipment) and the network is closely related to the RAT adopted by the air interface of the access network.
  • An access network of GSM is GERAN (GSM/EDGE Radio Access Network, GSM/EDGE radio access network;), and an access network of UMTS is UTRAN (UMTS Terrestrial Radio Access Network, UMTS terrestrial radio access network;
  • An access network of LTE is E-UTRAN (Evolved-UTRAN, Evolved UTRAN).
  • EDGE Enhanced Data Rate for GSM Evolution
  • L3 (Layer 3, Layer 3) signaling and NAS (Non-Access Spectrum) signaling in the service establishment, service, and service release of the UE are bound to the RAT of the air interface. For example, if the UE registration/location is updated to the MSC (Mobile Switching Center) of the GSM core network, the signaling of the registration/location update is transmitted in the GSM air interface.
  • MSC Mobile Switching Center
  • NAS and L3 signaling is bound to the air interface RAT.
  • NAS and L3 signaling cannot flexibly utilize the advantages of various air interfaces. For example, it is not possible to flexibly transmit signaling according to factors such as load, resulting in large delay, low efficiency, and high probability of failure in service establishment and operation.
  • Summary of the invention The embodiment of the invention provides a communication method, a user equipment and a unified wireless controller, which can flexibly implement the conversion of services between different RATs.
  • a communication method including: a user equipment establishes a first connection with a unified wireless controller SRC through a first communication network; and a user equipment sends a second communication network to the SRC by using the first connection Non-access stratum NAS signaling or layer 3 signaling, and/or receiving NAS signaling or layer 3 signaling of the second communication network from the SRC, wherein the first communication network and the second communication network A different radio access technology RAT is used, the SRC being used to manage radio resources of the first communication network and the second communication network.
  • the user equipment sends the NAS signaling of the second communications network to the SRC by using the first connection, where: the user equipment passes the first connection, Transmitting, by the SRC, first NAS signaling of the second communication network, where the first NAS signaling is used for registration or location update to the second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling carries type information of the second communication network.
  • the user equipment receives the NAS signaling of the second communications network from the SRC by using the first connection, where: the user equipment receives The second NAS signaling of the second communication network that is sent by the SRC by using the first connection, where the second NAS signaling is used to respond to the first NAS message or to the second communication network.
  • Initiated NAS signaling related to registration or location update.
  • the user equipment sends the NAS signaling of the second communication network to the SRC by using the first connection, where: the user equipment passes The first connection sends a third NAS signaling for establishing a service in the second communication network to the SRC.
  • the third NAS signaling or the message or data carrying the third NAS signaling carries type information of the second communication network.
  • the user equipment receives the NAS signaling of the second communications network from the SRC by using the first connection, where: the user equipment receives The fourth NAS signaling of the second communication network that is sent by the SRC by using the first connection, where the fourth NAS signaling is used to respond to the third NAS message or NAS signaling related to establishing a service initiated by the second communication network.
  • the user equipment receives, by using the first connection, the layer 3 signaling of the second communications network from the SRC, including: the user equipment Receiving, by the SRC, the first layer three signaling that is sent by using the first connection, where the first layer three signaling is used to transfer the user equipment to the second communication network; the method further includes: The user equipment establishes a second connection with the second communication network according to the first layer three signaling, and performs a service on the second connection.
  • the user equipment before the user equipment receives the first layer three signaling, the user equipment receives, by using the first connection, the SRC
  • the NAS signaling of the second communication network includes: the user equipment receiving ringing signaling sent by the SRC by using the first connection.
  • the user equipment receives the NAS signaling of the second communication network from the SRC by using the first connection, and further includes: the user equipment Receiving, by the SRC, the fifth NAS signaling of the second communications network that is sent by using the first connection, where the fifth NAS signaling is a connected message.
  • the user equipment sends the NAS signaling of the second communication network to the SRC by using the first connection, and further includes: the user equipment And transmitting, by the first connection, sixth NAS signaling to the SRC, where the sixth NAS signaling is used to confirm the connected message.
  • the method further includes: the user equipment performs measurement on the second communication network, and generates a measurement report according to the measurement result; The user equipment sends the measurement report to the SRC through the first connection.
  • the method further includes: the user equipment sends capability indication information to the SRC, where the capability indication information is used to indicate that the user equipment has Trans-RAT signaling capability.
  • the user equipment sends, by using the first connection, the NAS signaling or the layer 3 signaling of the second communications network to the SRC, including: The user equipment sends a signaling container to the SRC by using the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network; Connecting, receiving NAS signaling or layer 3 signaling of the second communication network from the SRC, The user equipment receives a signaling container from the SRC through the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network.
  • the first connection is a control channel in a first communications network.
  • the second connection is a traffic channel in the second communication network.
  • a communication method including: a unified wireless controller SRC establishes a first connection with a user equipment by using a first communication network; and the SRC sends a second communication to the user equipment by using the first connection Non-access stratum NAS signaling or layer 3 signaling of the network, and/or receiving NAS signaling or layer 3 signaling of the second communication network from the user equipment, wherein the first communication network and the first The two communication networks use different radio access technologies RATs for managing radio resources of the first communication network and the second communication network.
  • the SRC receives the NAS signaling of the second communications network from the user equipment by using the first connection, where: the SRC receives the user equipment by using the First NAS signaling sent by the first connection, the first NAS signaling is used for registration or location update to the second communication network; the method further includes: forwarding the first NAS signaling to the Said second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling carries type information of the second communication network, where The method further includes: determining the second communication network based on the type information.
  • the method further includes: the SRC receiving the second NAS signaling sent by the second communications network, where the second NAS signaling is used And the NAS signaling related to the registration or location update initiated by the first NAS message or the second communication network; wherein the SRC sends the first to the user equipment by using the first connection
  • the NAS signaling of the second communication network includes: sending, by the SRC, the second NAS signaling to the user equipment by using the first connection.
  • the method further includes: the SRC recording an identifier of the user equipment, and information about the first communication network where the user equipment resides And/or information of the second communication network registered by the user equipment.
  • the SRC receives, by using the first connection, the NAS signaling of the second communications network from the user equipment, including: Receiving, by the SRC, the third NAS signaling that is sent by the user equipment by using the first connection, where the third NAS signaling is used to establish a service in the second communications network, where the method further includes: The third NAS signaling is forwarded to the second communication network.
  • the third NAS signaling or the message or data carrying the third NAS signaling carries type information of the second communication network, where The method further includes: determining the second communication network based on the type information.
  • the method further includes: receiving, by the SRC, fourth NAS signaling sent by the second communications network, where the fourth NAS signaling is used. Responding to the third NAS message or the NAS signaling related to the establishment of the service initiated by the second communication network; wherein the SRC sends the second communication to the user equipment by using the first connection.
  • the NAS signaling of the network includes: sending, by the SRC, the fourth NAS signaling to the user equipment by using the first connection.
  • the method further includes: the SRC allocates a service channel of the second communication network to the user equipment; The first connection, the layer 3 signaling of the second communication network is sent to the user equipment, where the SRC sends the first layer three signaling to the user equipment by using the first connection, where the first Layer 3 signaling is used to transfer the user equipment to a traffic channel of the second communication network.
  • the SRC before the SRC allocates a traffic channel of the second communication network to the user equipment, the SRC passes the first connection, And sending, by the user equipment, the NAS signaling of the second communications network, the method further includes: sending, by the SRC, the ringing signaling to the user equipment by using the first connection.
  • the SRC sends the NAS signaling of the second communication network to the user equipment by using the first connection
  • the method further includes: the SRC passing The first connection sends a fifth NAS signaling of the second communication network to the user equipment, where the fifth NAS signaling is a connected message.
  • the SRC receives NAS signaling of the second communication network from the user equipment by using the first connection, and further includes: the SRC receiving The sixth NAS signaling sent by the user equipment by using the first connection, the sixth NAS signaling is used to confirm the connected message of the second communication network.
  • the method further includes The SRC sends a measurement control message to the user equipment, where the measurement control message is used to instruct the user equipment to perform measurement on the second communication network; and the SRC receives the measurement by the user equipment according to the measurement. The resulting measurement report.
  • the method further includes: the SRC receiving the capability indication information sent by the user equipment, where the capability indication information is used to indicate the user equipment
  • the cross-RAT signaling transmission capability is configured by the SRC according to the capability indication information.
  • the method further includes: receiving, by the SRC, NAS signaling or layer three signaling of the second communications network; The first connection, sending the NAS signaling or the layer 3 signaling of the second communication network to the user equipment, including: the SRC filling the NAS signaling or the layer 3 signaling of the second communication network into the signaling container And transmitting, by the first connection, the signaling container to the user equipment, in combination with the second aspect and the foregoing implementation manner, in another implementation manner, the SRC passes the first connection, Receiving the NAS signaling or the layer 3 signaling of the second communication network from the user equipment, including: the SRC receiving, by using the first connection, a signaling container from the user equipment, where the signaling container carries the The NAS signaling or the layer 3 signaling of the second communication network, the method further includes: the SRC extracting NAS signaling or layer three signaling of the second communication network from the signaling container and the second NAS signaling for communication networks
  • the first connection is a control channel in a first communications network.
  • a third aspect provides a user equipment, including: a connection unit, configured to establish a first connection with a unified wireless controller SRC through a first communication network; a transceiver unit, configured to use the first connection established by the connection unit, Sending non-access stratum NAS signaling or layer 3 signaling of the second communication network to the SRC, and/or receiving NAS signaling or layer 3 signaling of the second communication network from the SRC, where the A communication network and the second communication network use different radio access technologies RATs for managing radio resources of the first communication network and the second communication network.
  • the transceiver unit is specifically configured to send, by using the first connection, first NAS signaling of the second communications network to the SRC, where the first NAS signaling Used to register or update the location to the second communication network.
  • the transceiver unit The second NAS signaling is used to receive the second NAS signaling sent by the SRC by using the first connection, where the second NAS signaling is used to respond to the first NAS message or NAS signaling related to registration or location update initiated by the second communication network.
  • the transceiver unit is specifically configured to send, by using the first connection, to the SRC, to establish a service in the second communication network.
  • Third NAS signaling is specifically configured to send, by using the first connection, to the SRC, to establish a service in the second communication network.
  • the transceiver unit is specifically configured to receive fourth NAS signaling of the second communication network that is sent by the SRC by using the first connection,
  • the fourth NAS signaling is used to respond to the third NAS message or NAS signaling related to establishing a service initiated by the second communication network.
  • the transceiver unit is specifically configured to receive, by using, the first layer three signaling that is sent by the SRC by using the first connection, where the first layer is three The signaling is used to transfer the user equipment to the second communication network; the connecting unit is further configured to establish a second connection with the second communication network according to the first layer three signaling, and Performing a service on the second connection.
  • the transceiver unit before the transceiver unit receives the first layer three signaling, the transceiver unit is further configured to receive the SRC by using the first Connect the ringing signaling sent.
  • the transceiver unit is specifically configured to receive, by the SRC, the fifth NAS signaling of the second communications network that is sent by using the first connection,
  • the fifth NAS signaling is a connection connected message, and sends a sixth NAS signaling to the SRC by using the first air interface connection, where the sixth NAS signaling is used to confirm the connected message.
  • the user equipment further includes: a measuring unit, configured to perform measurement on the second communications network, and generate a measurement report according to the measured result;
  • the transceiver unit is further configured to send, by using the first connection, a measurement report generated by the measurement unit to the SRC.
  • the transceiver unit is further configured to send capability indication information to the SRC, where the capability indication information is used to indicate that the user equipment has a cross-RAT letter. Make transmission capacity.
  • the transceiver unit Specifically, the signaling container is sent to the SRC by using the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network; or, the transceiver unit is specifically configured to pass The first connection receives a signaling container from the SRC, and the signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • a unified wireless controller including: a connection unit, configured to establish a first connection with a user equipment by using a first communication network; and a transceiver unit, configured to use the first connection established by the connection unit,
  • the user equipment sends non-access stratum NAS signaling or layer 3 signaling of the second communication network, and/or receives NAS signaling or layer 3 signaling of the second communication network from the user equipment, where
  • the first communication network and the second communication network use different radio access technologies RATs for managing radio resources of the first communication network and the second communication network.
  • the transceiver unit is specifically configured to receive first NAS signaling sent by the user equipment by using the first connection, where the first NAS signaling is used to The second communication network performs registration or location update; the transceiver unit is further configured to forward the first NAS signaling to the second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling carries type information of the second communication network
  • the unified wireless controller further includes a determining unit configured to determine the second communication network according to the type information.
  • the transceiver unit is further configured to receive second NAS signaling sent by the second communications network, where the second NAS signaling is used to Responding to the first NAS signaling or NAS signaling related to registration or location update initiated by the second communication network; sending, by the first connection, the second NAS signaling to the user equipment .
  • the transceiver unit is specifically configured to receive third NAS signaling sent by the user equipment by using the first connection, where the third NAS is Used to establish a service in the second communication network; the transceiver unit is further configured to forward the third NAS signaling to the second communication network.
  • the third NAS signaling or the message or data carrying the third NAS signaling carries type information of the second communication network
  • the unified wireless controller further includes a determining unit, configured to determine according to the type information The second communication network.
  • the transceiver unit is further configured to receive fourth NAS signaling sent by the second communications network, where the fourth NAS signaling is used to And transmitting, by the third NAS message, the NAS signaling related to the establishment of the service initiated by the second communication network; and sending, by using the first connection, the fourth NAS signaling to the user equipment.
  • the method further includes: an allocating unit, configured to allocate, by the user equipment, a traffic channel of the second communications network; The first connection is sent to the user equipment, where the first layer three signaling is used to transfer the user equipment to a traffic channel of a second communication network allocated by the allocation unit.
  • the transceiver unit before the allocating unit allocates a traffic channel of the second communication network to the user equipment, the transceiver unit is specifically configured to The first connection sends ringing signaling to the user equipment.
  • the transceiver unit is specifically configured to send, by using the first connection, a fifth NAS signaling of the second communications network to the user equipment.
  • the fifth NAS signaling is a connection connected message, and receives a sixth NAS signaling sent by the user equipment by using the first connection, where the sixth NAS signaling is used to confirm the connected message.
  • the transceiver unit is further configured to send a measurement control message to the user equipment, where the measurement control message is used to instruct the user equipment to
  • the second communication network performs the measurement and receives a measurement report generated by the user equipment according to the measured result.
  • the transceiver unit is specifically configured to receive NAS signaling or layer 3 signaling of the second communication network, and pass the first connection, Sending a signaling container to the user equipment, where the signaling container carries the NAS signaling or the layer 3 signaling of the second communications network, or the transceiver unit is specifically configured to use the first connection,
  • the user equipment receives a signaling container, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network, and sends NAS signaling or layer 3 signaling of the second communication network to the Said second communication network.
  • the embodiment of the present invention transmits the second through the first connection established in the first communication system.
  • the NAS/L3 signaling of the communication system enables the service to flexibly convert between different RATs, improving system efficiency.
  • FIG. 1 is a schematic architectural diagram of a communication system to which an embodiment of the present invention is applicable.
  • FIG. 2 is a flow chart of a communication method in accordance with an embodiment of the present invention.
  • FIG. 3 is a flow chart of a communication method according to another embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of a communication process in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of a communication process according to another embodiment of the present invention.
  • FIG. 6 is a flow chart of a communication process according to another embodiment of the present invention.
  • FIG. 7 is a block diagram of a user equipment in accordance with one embodiment of the present invention.
  • FIG. 8 is a block diagram of an SRC in accordance with one embodiment of the present invention.
  • FIG. 9 is a block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 10 is a block diagram of an SRC in accordance with another embodiment of the present invention. detailed description
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • UE User Equipment
  • Mobile terminal Mobile
  • Radio Access Network e.g. RAN, Radio Access Network
  • core networks which may be mobile terminals, such as mobile phones (or “cellular" phones) and computers with mobile terminals, for example, may be portable , pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • 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 (eNB or e-NodeB, evolutional Node B) in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • FIG. 1 is a schematic architectural diagram of a communication system to which an embodiment of the present invention is applicable. It should be noted that the architecture of Figure 1 is only intended to depict a scenario in which embodiments of the present invention are applicable, and is not intended to limit the scope of the embodiments of the present invention.
  • the embodiments of the present invention can be applied to other multi-RAT communication systems, and these RATs may be those defined in 3GPP, or may be other systems.
  • BTS 102 is a base station in the GSM system
  • NodeB 103 is a base station in the UMTS system
  • eNB 104 is a base station in the LTE system.
  • SRC Single Radio Controller
  • the so-called camping means that the UE 101 listens to the logical channel that the idle (idle) state such as the BCCH (Broadcast Control Channel) and the CCCH (Common Control Channel) sent by the eNB 104 needs to be monitored.
  • the BCCH/CCCH can also be configured separately on a certain frequency.
  • the UE 101 establishes an air interface connection with the LTE system based on the BCCH/CCCH information transmitted by the eNB 104.
  • the SRC 105 is used to manage the radio resources of the communication networks of the various RATs. Taking the scenario of Fig. 1 as an example, the SRC 105 is connected to the respective base stations BTS 102, NodeB 103 and eNB 104, thereby managing the radio resources of the respective communication networks.
  • the SRC 105 is also connected to a core network device MSC 106, an SGSN (Serving GPRS Support Node) 107, and an MME (Mobility Management Entity) 108.
  • the MSC 106 is a device in a 2G or 3G network for controlling the services of all BSCs (Base Station Controllers), controlling the mobile terminal to initiate or terminate user calls, providing switching functions, and connecting with other functions in the system.
  • the SGSN 107 is a mobility management device in a 2G or 3G network for recording current location information of the mobile terminal, and completes transmission and reception of mobile packet data between the mobile terminal and the SGSN.
  • MME 108 is a 4G network The mobile management device is used for controlling mobility management and bearer management of the mobile terminal.
  • the different MSCs in the 2G and 3G networks are not distinguished in Figure 1, but are collectively referred to as the MSC 106, but those skilled in the art will appreciate that the MSC 106 may include multiple MSC devices under different RATs.
  • different SGSNs in 2G and 3G networks are not distinguished in FIG. 1, and are collectively referred to as SGSN 107, but those skilled in the art will appreciate that SGSN 107 may include multiple SGSN devices under different RATs.
  • the embodiment of the present invention does not limit the number of RATs, for example, two or more than three.
  • the SRC is depicted as a separate device in FIG. 1, the embodiment of the present invention does not limit the implementation form of the SRC, and may be located on the BTS 102, the NodeB 103, the eNB 104, the MSC 106, the SGSN 107, or the MME 108, or Located on other network devices, or distributed on different network devices.
  • FIG. 2 is a flow chart of a communication method in accordance with an embodiment of the present invention.
  • the method of Figure 2 is performed by a user equipment, such as by UE 101 as shown in Figure 1.
  • the user equipment establishes a first connection with the SRC through the first communication network.
  • the UE 101 can establish a first connection with the SRC 105 through the LTE network where the eNB 104 is located.
  • the first connection may be an RRC (Radio Resource Control) connection or may be a control channel in the first communication network.
  • the first connection may include an air interface connection between the UE 101 and the eNB 104, and a wired connection between the eNB 104 and the SRC 105.
  • the user equipment sends NAS signaling or layer 3 signaling of the second communication network to the SRC through the first connection, and/or receives NAS signaling or layer 3 signaling of the second communication network from the SRC.
  • first communication network and the second communication network use different RATs
  • the SRC is used to manage the radio resources of the first communication network and the second communication network.
  • the UE 101 can interact with the SRC 105 for NAS/L3 signaling of another communication network through the first connection under the LTE system established in step 201, for example, can interact with the MSC 106.
  • NAS/L3 signaling related to belonging to the GSM system or UMTS system. This signaling interaction can be referred to as cross-RAT signaling interaction.
  • the foregoing cross-RAT signaling interaction may be implemented by releasing the binding of the NAS/L3 signaling to the air interface RAT. Dissolving this binding can be achieved by decoupling the AS (Access Spectrum) and the NAS, that is, the NAS/L3 signaling of the second communication system can be in the first communication system.
  • the air interface is transmitted on the resource.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • the UE may implement registration or location update across the RAT through the cross-RAT signaling interaction manner in the embodiment of the present invention, that is, registration or location update on the second communication network through the first communication network.
  • the user equipment may send, by using the first connection, the first NAS signaling of the second communication network to the SRC, where the first NAS signaling is used for registration or location update to the second communication network.
  • the location update may include a location area update to the MSC 106, a routing area update to the SGSN 107, a tracking area update to the MME 108, or mobility management to other core network devices, depending on the core network for which the location update is directed.
  • Regional update may include a location area update to the MSC 106, a routing area update to the SGSN 107, a tracking area update to the MME 108, or mobility management to other core network devices, depending on the core network for which the location update is directed.
  • Regional update may include a location area update to the MSC 106, a routing area update to the SGSN 107, a tracking area update to the MME 108, or mobility management to other core network devices, depending on the core network for which the location update is directed.
  • Regional update may include a location area update to the MSC 106, a routing area update to the SGSN 107, a tracking area update to the MME 108, or mobility management to other core network devices, depending on the core network for which the
  • the registration may include registration with the MSC 106, registration with the SGSN 107, registration with the MME 108, or registration with other core network devices, depending on the core network to which the registration is directed.
  • the NAS signaling in the embodiment of the present invention can be implemented by using an existing NAS message, such as the message specified in the 3GPP TS 24.008, TS 24.301 protocol.
  • the embodiment of the present invention does not limit the specific form of the NAS signaling, and is not limited to the NAS signaling of the 2G/3G/LTE, and is not limited to the CS (Circuit Switch) domain or the PS (Packet Switch) domain.
  • NAS signaling is not limited to the NAS signaling of the 2G/3G/LTE, and is not limited to the CS (Circuit Switch) domain or the PS (Packet Switch) domain.
  • the first NAS signaling or the message or data carrying the first NAS signaling may carry indication information for indicating that the UE wants to perform registration or location update.
  • the first NAS signaling or the message or data carrying the first NAS signaling may further carry type information of the second communication network. This may facilitate the SRC to determine, based on the type information of the second communication network, the object that the UE wants to register or update.
  • the foregoing indication information and type information may be carried by the first NAS signaling itself, such as in the payload of the NAS signaling; or may be carried by a message or data carrying the first NAS signaling, for example, UL information including a registration request. In the Transfer message.
  • the type information may be explicit, explicitly indicating a specific network element, such as MSC 106, SGSN 107 or MME 108; or may be implicit, and the SRC is based on the type of the first NAS signaling (ie, the first NAS signaling is The NAS message of the 2G MSC, or the NAS message of the 3G MSC, or the NAS message of some other RAT core network, determines how to forward the first NAS signaling.
  • the user equipment may receive second NAS signaling of the second communications network that is sent by the SRC through the first connection, where the second NAS signaling is used to perform the first NAS message. Responding to NAS signaling related to registration or location update initiated by the second communication network.
  • NAS signaling for registration or location update and corresponding response NAS signaling
  • other NAS signaling interactions may be required between the core network and the UE of the second communication network, such as authentication (Authentication) And NAS signaling such as Ciphering mode
  • the manner of interaction of these NAS signaling can also be similarly referred to by the first NAS signaling and the second NAS signaling, by an air interface connection on the first communication network.
  • the UE may implement a cross-RAT service, such as a CS service or a PS service, by using a cross-RAT signaling interaction manner in the embodiment of the present invention, that is, initiating a call or a packet service on the second communication network through the first communication network.
  • a cross-RAT service such as a CS service or a PS service
  • the user equipment may send, by using the first connection, third NAS signaling for establishing a service in the second communication network to the SRC.
  • the third NAS signaling may be used to establish a call service or a packet service.
  • the embodiment of the present invention does not limit the specific type of the service.
  • the third NAS signaling or the message or data carrying the third NAS signaling carries type information of the second communication network.
  • the type information may be the same as the type information carried in the first NAS signaling or the message or data carrying the first NAS signaling, and therefore will not be described again.
  • the user equipment may receive fourth NAS signaling of the second communications network that is sent by the SRC through the first connection, where the fourth NAS signaling is used to perform the third NAS message. Responding to or establishing NAS signaling related to establishing a service initiated by the second communication network.
  • the user equipment may receive the first layer three signaling sent by the SRC through the first connection, where the first layer three signaling is used to transfer the user equipment to the second communication network.
  • the SRC can allocate a traffic channel for the second communication network to the user equipment so that the user equipment can perform traffic on the traffic channel of the second communication network.
  • the user equipment can establish a second connection with the second communication network according to the first layer three signaling, and perform services on the second connection.
  • the second connection can be A traffic channel in the second communication network.
  • the first layer three signaling may also be corresponding signaling in the first communication network.
  • the layer 3 message in the second communication network may be sent to the user equipment by means of a container, such as placing the container in an RRC connection reconfiguration message of the first network, after receiving the user equipment.
  • the message in the container is taken out, and is sent to the layer 3 protocol stack of the second communication network for parsing, and the call service is performed on the traffic channel of the second communication network according to the instruction of the message.
  • the first layer three signaling may be an assignment command, an RRC reconfigure, or a handover command.
  • the embodiment of the present invention does not limit the specific form of the first layer three commands.
  • the L3 signaling in the embodiment of the present invention includes an existing L3 message, and may also include an RRC related message, such as a message specified in the 3GPP 44.018, 44.060, 25.331, 36.331 protocols.
  • the embodiment of the present invention does not limit the specific form of the L3 signaling, and is not limited to the L3 signaling of the 2G/3G/LTE, and is not limited to the L3 signaling of the CS domain or the PS domain.
  • the user equipment may receive an alternating signaling sent by the SRC through the first connection.
  • Ringing signaling is also a type of NAS signaling.
  • ringing signaling can also be transmitted on the CS traffic channel of the second communication system in accordance with the prior art.
  • the user equipment may receive the fifth NAS signaling of the second communications network that is sent by the SRC through the first connection, where the fifth NAS signaling is a connected message.
  • the connected message is used to indicate that the called party agrees to the call.
  • the user equipment can send the sixth NAS signaling to the SRC through the first connection, and the sixth NAS signaling is used to confirm the connected message (connected ack).
  • the connected message and the connected ack message may also be transmitted on the CS traffic channel of the second communication system in an existing manner.
  • the user equipment may perform measurement on the second communication network, generate a measurement report according to the result of the measurement, and then send a measurement report to the SRC through the first connection.
  • the SRC can allocate a traffic channel of the second communication network based on the measurement.
  • the user equipment may send the capability indication information to the SRC.
  • the capability indication information is used to indicate that the user equipment has cross-RAT signaling transmission capability.
  • the capability indication information may be reported to the SRC during the process of establishing the first connection, or may be reported after the first connection is established, for example, during the process of performing NAS registration or location update.
  • the foregoing cross-RAT signaling interaction may be implemented by using a signaling container.
  • the user equipment may send a signaling container to the SRC through the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network; or, the user equipment may receive the signaling container from the SRC through the first connection, The signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • the manner of the signaling container is taken as an example.
  • the embodiment of the present invention does not impose any limitation on the specific form of the message or data that carries the NAS/L3 signaling across the RAT.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • E-UTRAN air has the advantage of low latency. If the E-UTRAN air interface is used as the physical bearer and bears the NAS signaling for establishing the CS call on the GERAN/UTRAN, the advantage of the E-UTRAN air interface low delay can be fully utilized to reduce the transmission delay of the NAS signaling on the air interface. , which brings about an improvement in user experience.
  • FIG. 3 is a flow chart of a communication method according to another embodiment of the present invention.
  • the method of Figure 3 is performed by the SRC, such as the SRC 105 shown in Figure 1.
  • the method of Fig. 3 corresponds to the method of Fig. 2, and thus the repeated description will be appropriately omitted.
  • the SRC establishes a first connection with the user equipment by using the first communications network.
  • the SRC sends, by using the first connection, NAS signaling or layer 3 signaling of the second communication network to the user equipment, and/or receiving NAS signaling or layer 3 signaling of the second communication network from the user equipment.
  • first communication network and the second communication network use different RATs
  • the SRC is used to manage the radio resources of the first communication network and the second communication network.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • the SRC may receive the first NAS signaling sent by the user equipment by using the first connection, where the first NAS signaling is used to register with the second communication network. Or location update. At this time, the SRC may forward the first NAS signaling to the second communication network, that is, to the core network element of the second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling may carry type information of the second communication network.
  • the SRC can determine the second communication network based on the type information.
  • the SRC may receive the second NAS signaling sent by the second communications network, where the second NAS signaling is used to respond to the first NAS message or initiate registration or Location update related NAS signaling. At this time, in step 302, the SRC may send the second NAS signaling to the user equipment through the first connection.
  • the SRC may record the identifier of the user equipment, the information of the first communication network where the user equipment resides, and/or the information of the second communication network registered by the user equipment for later use.
  • the SRC may receive third NAS signaling sent by the user equipment by using the first connection, where the third NAS signaling is used to establish a service, such as a call, in the second communication network. Business or grouping business. At this point, the SRC can forward the third NAS signaling to the second communication network.
  • the third NAS signaling or the message or data carrying the third NAS signaling may carry type information of the second communication network.
  • the SRC can determine the second communication network based on the type information.
  • the SRC may receive the fourth NAS signaling sent by the second communications network, where the fourth NAS signaling is used to respond to the third NAS message or initiate and establish a service for the second communications network.
  • the SRC may send the fourth NAS signaling to the user equipment through the first connection.
  • the SRC may allocate a service channel of the second communication network to the user equipment.
  • the SRC may send the first layer three signaling to the user equipment by using the first connection, where the first layer three signaling is used to transfer the user equipment to the traffic channel of the second communication network.
  • the SRC may send ringing signaling to the user equipment by using the first connection.
  • Ringing signaling is also a type of NAS signaling.
  • ringing signaling may be transmitted on the CS traffic channel of the second communication system in accordance with the prior art.
  • the SRC may send the second to the user equipment by using the first connection.
  • the fifth NAS signaling of the communication network is a connected message.
  • the SRC may also receive the sixth NAS signaling sent by the user equipment through the first connection, and the sixth NAS signaling is used to confirm the connected message of the second communication network.
  • the connected message and the connected ack message may also be transmitted on the CS traffic channel of the second communication system in an existing manner.
  • the SRC may send a measurement control message to the user equipment, where the measurement control message is used to indicate that the user equipment performs measurement on the second communication network, and then receives a measurement report generated by the user equipment according to the measurement result. At this time, the SRC can allocate the traffic channel of the second communication network according to the measurement report.
  • the SRC may further receive the capability indication information sent by the user equipment, where the capability indication information is used to indicate that the user equipment has the cross-RAT signaling transmission capability, and configure the cross-RAT signal of the user equipment according to the capability indication information.
  • the transmission for example, activates or allows the user equipment to perform cross-RAT signaling transmission.
  • the SRC may transmit the NAS signaling or the layer 3 signaling of the second communication system in the first communication system by using a signaling container.
  • the SRC may receive the NAS signaling or the layer 3 signaling of the second communication network, fill the NAS signaling or the layer 3 signaling of the second communication network into the signaling container, and use the first connection to the user equipment.
  • the signaling container is sent. In this way, the signaling container carries the NAS signaling or the layer 3 signaling of the second communication network, and is used by the user equipment for extraction.
  • the SRC may receive a signaling container from the user equipment by using the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network, and then the SRC may extract the NAS of the second communication network from the signaling container.
  • the signaling or layer 3 signaling sends the extracted NAS signaling or layer 3 signaling of the second communication network to the second communication network, for example, to the network element corresponding to the NAS signaling or the layer 3 signaling.
  • the form of cross-RAT signaling interaction in the embodiment of the present invention is not limited to a signaling container, but may be any suitable message or data.
  • FIG. 4 is a schematic flow chart of a communication process in accordance with an embodiment of the present invention.
  • Figure 4 depicts the main flow of UE implementation of UTMS/GSM registration and CS caller in LTE system.
  • the embodiment of FIG. 4 is described by taking the UE as a call service, but the embodiment of the present invention is not limited thereto, and may also be applied to the case where the UE initiates a packet service.
  • the UE may be the UE 101 of FIG. 1
  • the SRC may be the SRC 105 of FIG. 1
  • the MSC may be the MSC 106 of FIG. 401.
  • the UE air interface resides in the LTE, that is, the UE can listen to channels such as BCCH and CCCH of the LTE, and establish an RRC connection in the LTE with the SRC according to the received BCCH/CCCH information (an example of the foregoing first connection).
  • the UE may also indicate that the SRC has the capability of transmitting the information across the RAT, and the capability indication information may also be reported in the process of the UE performing the NAS registration.
  • the UE initiates an MSC registration process on the LTE air interface.
  • the UE may implement MSC registration through the first NAS signaling and the second NAS signaling.
  • the UE may instruct the SRC to perform MSC registration.
  • the UE may send the NAS message registered by the MSC to the SRC in the NAS container.
  • the SRC identifies that the UE's NAS registration is a registration with the MSC, and sends the NAS signaling to the corresponding
  • the SRC may configure/activate the UE to allow cross-RAT signaling transmission.
  • the SRC extracts the NAS message in the NAS container and forwards it to the corresponding MSC. If the SRC receives the NAS response message sent by the MSC, the NAS response message is filled into the NAS container and sent to the UE through the LTE air interface.
  • the UE receives the NAS container sent by the SRC via the LTE air interface, and extracts the NAS response message and delivers the NAS response message to the corresponding UMTS/GSM NAS protocol stack for processing.
  • the SRC may record the UE identity, the LTE cell currently camped by the UE, and/or the information of the corresponding registered MSC, and perform similar processing on subsequent NAS messages.
  • the equipment of the core network such as the MSC and the HSS (Home Subscriber Server), can store information about the UE registration, such as a cell ID (identification).
  • steps 402-403 may be omitted.
  • the UE transmits NAS signaling related to CS call establishment on the LTE air interface to establish a CS call service.
  • NAS messages related to CS call setup can utilize existing associated NAS signaling.
  • the SRC allocates a CS traffic channel in the UMTS/GSM, and reserves corresponding resources.
  • the SRC can initiate the SRC after the NAS signaling that identifies the CS call setup is completed.
  • the CS service channel establishment procedure of UMTS/GSM For example, the MSC can send a call proceeding message to indicate that the call is established. Alternatively, the MSC may notify the SRC to establish a UMTS/GSM CS traffic channel for the UE.
  • the SRC sends signaling on the LTE air interface to transfer the UE to the UMTS/GSM CS service.
  • the channel On the channel
  • the SRC may construct an assignment message or a handover message to the UE to transfer the UE to the UMTS/GSM CS traffic channel.
  • the UE performs CS voice service on the UMTS/GSM CS service channel.
  • FIG. 5 is a schematic flow chart of a communication process according to another embodiment of the present invention.
  • Figure 5 details the process by which a UE camping in LTE initiates a GSM CS call.
  • the UE measures the GSM network to facilitate the SRC to allocate the appropriate CS traffic channel.
  • the UE triggers a CS call.
  • steps 502-503 non-exhaustively describe the main signaling for establishing an RRC connection.
  • steps 502-503 may be omitted.
  • RRC connection setup complete message (RRC connection setup complete).
  • CM service request CM service request
  • the CM service request message is for the MSC of the GSM, and is an example of the foregoing third NAS signaling, which can be sent to the SRC through the RRC connection of the LTE.
  • the SRC By receiving the RRC message, the SRC identifies that the RRC message includes a NAS message for establishing a CS call to the MSC, and finds a corresponding MSC for the UE. Alternatively, the SRC may find the corresponding MSC from the saved UE information. For example, the SRC can find the MSC that the UE has registered according to the UE information recorded in step 402 of FIG.
  • the SRC sends a measurement control message to the UE, for example, a GSM NCL (Neighbor Cell List) GSM NCL reporting indication.
  • GSM NCL Neighbor Cell List
  • the SRC In order to be able to allocate a suitable traffic channel to the UE, the SRC needs the UE to measure the GSM network to perform subsequent CS voice service.
  • the SRC may send a measurement control message to instruct the UE to measure the cell of the corresponding standard. If the SRC knows the CS call service initiated by the UE to the 2G MSC, the UE may be instructed to perform measurement on the GERAN neighboring cell. 507. The SRC forwards the CM service request message to the corresponding MSC.
  • the MSC and the VLR Visitor Location Register
  • the embodiment of the present invention is not limited thereto, and the same can be applied to the scenario where the MSC and the VLR are separated, and such an application still falls within the scope of the embodiment of the present invention.
  • steps 506 and 507 is not limited in the embodiment of the present invention, and may be performed after step 508, or step 506 and step 507 are performed synchronously.
  • the MSC/VLR sends an authentication request message to the UE.
  • the UE sends an authentication response message to the MSC/VLR. 510.
  • the MSC/VLR sends a ciphering mode command to the UE.
  • the UE sends an ciphering mode complete message to the MSC/VLR.
  • Temporary Mobile User Identity) Relocation Command Message TMSI relocation command.
  • the UE sends a TMSI relocation complete message to the MSC/VLR (TMSI relocation complete ⁇ )
  • the UE sends a service setup message (SETUP) to the MSC/VLR.
  • SETUP service setup message
  • the steps 508-514 can transmit the signaling between the UE and the GSM MSC through the air interface of the LTE according to the methods of FIG. 2 and FIG.
  • the MSC sends a call proceeding message to the SRC, indicating that the call setup is completed, as a response to the CM service request message of step 504 (ie, an example of the foregoing fourth NAS message).
  • the SRC forwards a call proceeding message to the UE.
  • the SRC may perform step 516 via the RRC connection of LTE.
  • the UE completes the measurement of the GSM network and sends a measurement report (GSM NCL reporting) to the SRC.
  • GSM NCL reporting a measurement report
  • Step 517 may be performed during the steps 507-516 without necessarily having to be performed after step 516. It is assumed that step 517 can be completed before the SRC allocates a GSM traffic channel for the UE.
  • the SRC allocates a GSM service channel to the UE according to the measurement report of the UE.
  • the SRC allocates a GSM traffic channel, it can also refer to the corresponding implementation strategy. Allocating GSM traffic channels
  • the method can refer to steps 518a and 518b.
  • the SRC sends a channel activation message to the corresponding BTS.
  • the BTS returns a channel activation ack to the SRC, indicating that the corresponding traffic channel has been allocated.
  • the SRC sends an assignment command or a handover command to the UE to transfer the UE to the GSM network.
  • the command in step 519 is L3 signaling, which can be sent to the UE on the LTE air interface according to the methods of FIG. 2 and FIG. 3.
  • Step 501-519 is an operation in the LTE system.
  • Steps 508-516 are used to transmit NAS messages during the call setup process in GSM.
  • the NAS messages may be added or deleted according to the network configuration, such as adding NAS messages such as user equipment capability queries.
  • Steps 520-527 are operations in the GSM system and may be identical to corresponding operations in prior art CS calling procedures. Therefore, the detailed description is omitted as appropriate.
  • the UE sends a SABM (Set Asynchronous Balanced Mode) message to the BTS.
  • SABM Set Asynchronous Balanced Mode
  • the BTS returns a UA (Unnumbered Acknowledgment, Unnumbered Confirmation) message to the UE.
  • UA Unnumbered Acknowledgment, Unnumbered Confirmation
  • the UE sends an assignment complete message (signal complete) to the SRC, indicating that the service channel establishment is completed.
  • the SRC forwards an assignment complete message to the MSC.
  • the MSC sends a ringing message to the UE.
  • the ringing message is transmitted on the CS traffic channel established by the SRC for the UE.
  • the ringing is sent to the UE after ensuring that the service channel has been established, so that the user can press the ON button to immediately make a voice call.
  • the MSC sends a connection message (connected) to the UE.
  • the UE sends a connection confirmation message (connected ack) to the MSC.
  • the UE After the connection is completed, the UE performs voice service in the GSM system.
  • the SRC can allocate an appropriate GSM service channel according to the measurement report of the UE, and improve the user's call experience.
  • Figure 6 is a flow chart showing the communication process of another embodiment of the present invention.
  • the timing of assigning traffic channels in Figure 6 is later than Figure 5.
  • the same process as that of FIG. 5 will be omitted as appropriate. Detailed description.
  • Steps 601-603 are the same as steps 515-517 of FIG. For the sake of cleaning, the steps before step 601 (ie, steps 501-514 in Figure 5) are not depicted.
  • the MSC sends a call proceeding message to the SRC, indicating that the call setup is completed.
  • the SRC forwards a call proceeding message to the UE.
  • the SRC may perform step 602 via the RRC connection of LTE.
  • Step 603 is an optional step or it may simply be performed before step 606.
  • the MSC After sending the call proceeding, the MSC sends an alerting message.
  • the SRC sends the alerting message to the UE on the LTE air interface.
  • the ringing message is also a type of NAS signaling.
  • the MSC sends a connect message (connected) to the UE.
  • connection message is an example of the fifth NAS signaling described above, and can be transmitted on the LTE air interface according to the methods of FIG. 2 and FIG.
  • Step 606 After receiving the connected message, the SRC triggers a process of establishing a GSM service channel. Step 606 can be performed in the same manner as step 518, and therefore will not be described again.
  • connection confirmation message is an example of the sixth NAS signaling described above, and may also be sent on the LTE air interface.
  • the SRC sends an assignment command or a handover command to the UE to transfer the UE to the GSM network. After the SRC receives the connected ack and confirms that the service channel is successfully reserved, the UE can be transferred to the service channel, and the UE can be implemented by issuing an assignment command or a handover command.
  • Steps 609-613 are operations in the GSM system and may be identical to corresponding operations in prior art CS calling procedures. Therefore, the detailed description is omitted as appropriate.
  • the UE sends a SABM (Set Asynchronous Balanced Mode) message to the BTS.
  • SABM Set Asynchronous Balanced Mode
  • the BTS returns a UA (Unnumbered Acknowledgment, Unnumbered Confirmation) message to the UE.
  • UA Unnumbered Acknowledgment, Unnumbered Confirmation
  • the UE sends an assignment complete message (signment complete) to the SRC, indicating that the service The channel setup is complete.
  • the SRC forwards the assignment complete message to the MSC ( assignment complete )
  • the UE After the connection is completed, the UE performs voice service in the GSM system.
  • the embodiment of Figure 6 employs a late assignment of a traffic channel, and the called subscriber picks up the call and then establishes a traffic channel.
  • the advantage of this is that if the called user does not answer, there is no need to re-allocate the traffic channel for the calling UE, thereby saving resources.
  • FIG. 7 is a block diagram of a user equipment in accordance with one embodiment of the present invention.
  • An example of the user equipment 70 of FIG. 7 is the UE 101 of FIG. 1, including a connection unit 71 and a transceiver unit 72.
  • the connection unit 71 establishes a first connection with the SRC through the first communication network.
  • the transceiver unit 72 transmits the NAS signaling or the layer 3 signaling of the second communication network to the SRC through the first connection established by the connection unit 71, and/or receives the NAS signaling or the layer 3 signaling of the second communication network from the SRC.
  • the first communication network and the second communication network use different RATs for managing radio resources of the first communication network and the second communication network.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • the user equipment 70 can implement various operations related to the UE in FIG. 1 to FIG. 6. To avoid repetition, details are not described in detail.
  • the transceiver unit 72 may send, by using the first connection, the first NAS signaling of the second communications network to the SRC, where the first NAS signaling is used for registering or updating the second communications network.
  • the transceiver unit 72 may receive second NAS signaling of the second communications network that is sent by the SRC through the first connection, where the second NAS signaling is used to respond to the first NAS message or NAS signaling initiated by the communication network related to registration or location update.
  • the transceiver unit 72 may send, by using the first connection, third NAS signaling for establishing a service in the second communication network to the SRC.
  • the transceiver unit 72 may receive fourth NAS signaling of the second communication network that is sent by the SRC through the first connection, where the fourth NAS signaling is used to respond to the third NAS message or The NAS signaling initiated by the communication network and related to the establishment of the service.
  • the transceiver unit 72 may receive the first layer three signaling sent by the SRC through the first connection, where the first layer three signaling is used to transfer the user equipment to the second communication network.
  • Connection The unit 71 can also establish a second connection with the second communication network according to the first layer three signaling, and perform services on the second connection.
  • the transceiver unit 72 may receive the ringing signaling sent by the SRC through the first connection.
  • Ringing signaling is also a type of NAS signaling.
  • the transceiver unit 72 may receive the fifth NAS signaling of the second communications network that is sent by the SRC through the first connection, where the fifth NAS signaling is a connected message, and is connected through the first air interface.
  • the SRC sends a sixth NAS signaling, and the sixth NAS signaling is used to acknowledge the connected message.
  • the user equipment 70 may further comprise a measuring unit 73, configured to measure the second communication network, and generate a measurement report according to the measured result.
  • the transceiver unit 72 can send the measurement report generated by the measurement unit to the SRC through the first connection.
  • the transceiver unit 72 may send capability indication information to the SRC, where the capability indication information is used to indicate that the user equipment has cross-RAT signaling transmission capability.
  • the transceiver unit 72 may send a signaling container to the SRC through the first connection, where the signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • the transceiver unit 72 can receive a signaling container from the SRC through the first connection, and the signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • FIG. 8 is a block diagram of an SRC in accordance with one embodiment of the present invention.
  • An example of the SRC 80 of Fig. 8 is the SRC 105 of Fig. 1, which includes a connection unit 81 and a transceiver unit 82.
  • the connection unit 81 establishes a first connection with the user equipment over the first communication network.
  • the transceiver unit 82 transmits NAS signaling or layer 3 signaling of the second communication network to the user equipment through the first connection established by the connection unit 81, and/or receives NAS signaling or layer three signaling of the second communication network from the user equipment. make.
  • the first communication network and the second communication network use different RATs, and the SRC 80 is used to manage the radio resources of the first communication network and the second communication network.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • the SRC 80 can implement various operations involving SRC in Figures 1 to 6. To avoid repetition, it will not be described in detail.
  • the transceiver unit 82 can receive the user equipment through the first connection.
  • the first NAS signaling sent, the first NAS signaling is used for registration or location update to the second communication network.
  • Transceiver unit 82 can forward the first NAS signaling to the second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling carries type information of the second communication network.
  • the SRC 80 may further include a determining unit 83 for determining the second communication network based on the type information so that the transceiver unit 82 can forward the NAS signaling of the second communication network.
  • the transceiver unit 82 can receive the second NAS signaling sent by the second communications network, where the second NAS signaling is used to respond to the first NAS signaling or initiated by the second communications network. NAS signaling related to registration or location update; transmitting second NAS signaling to the user equipment over the first connection.
  • the third NAS signaling or the message or data carrying the third NAS signaling may carry type information of the second communication network.
  • the SRC 80 may also include a determining unit 83 for determining a second communication network based on the type information.
  • the transceiver unit 82 can receive the fourth NAS signaling sent by the second communications network, where the fourth NAS signaling is used to respond to the third NAS message or initiated by the second communications network. Establishing service-related NAS signaling; transmitting, by the first connection, fourth NAS signaling to the user equipment.
  • the SRC 80 may record the identity of the user equipment, the information of the first communication network where the user equipment resides, and/or the information of the second communication network registered by the user equipment.
  • the transceiver unit 82 may receive third NAS signaling sent by the user equipment by using the first connection, where the third NAS signaling is used to establish a service in the second communication network, and the transceiver unit 82 The three NAS signaling is forwarded to the second communication network.
  • the SRC 80 further includes an allocating unit 84 for allocating a traffic channel of the second communication network to the user equipment.
  • the transceiver unit 82 can send the first layer three signaling to the user equipment through the first connection, where the first layer three signaling is used to transfer the user equipment to the traffic channel of the second communication network allocated by the allocation unit.
  • the transceiver unit 82 may send the ringing signal to the user equipment by using the first connection.
  • Ringing signaling is also a type of NAS signaling.
  • the transceiver unit 82 may send, by using the first connection, the fifth NAS signaling of the second communication network to the user equipment, where the fifth NAS signaling is a connected message. And receiving the sixth NAS signaling sent by the user equipment by using the first connection, where the sixth NAS signaling is used for confirming the connected message of the second communication network.
  • the transceiver unit 82 may send a measurement control message to the user equipment, where the measurement control message is used to indicate that the user equipment performs measurement on the second communication network, and receives a measurement report generated by the user equipment according to the measurement result.
  • the transceiver unit 82 may receive the NAS signaling or the layer 3 signaling of the second communications network, and send a signaling container to the user equipment by using the first connection, where the signaling container carries the NAS signaling or layer 3 signaling of the second communication network.
  • the transceiver unit 82 may receive a signaling container from the user equipment by using the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network, and NAS signaling or layer 3 of the second communication network Signaling is sent to the second communication network.
  • FIG. 9 is a block diagram of a user equipment according to another embodiment of the present invention.
  • An example of the user equipment 90 of FIG. 9 is the UE 101 of FIG. 1, including a processor 91, a memory 92, and a transceiver circuit 93.
  • the processor 91, the memory 92 and the transceiver circuit 93 are connected by a bus system 99.
  • the memory 92 stores instructions that cause the processor 91 to: establish a first connection with the SRC via the first communication network via the transceiver circuit 93.
  • the transceiver circuit 93 is configured to, under the control of the processor 91, transmit NAS signaling or layer 3 signaling of the second communication network to the SRC through the first connection, and/or receive NAS signaling of the second communication network from the SRC. Or layer three signaling, wherein the first communication network and the second communication network use different RATs, and the SRC is used to manage radio resources of the first communication network and the second communication network.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • user equipment 90 may also include an antenna 95.
  • the processor 91 controls the operation of the user device 90.
  • Memory 92 can include read only memory and random access memory and provides instructions and data to processor 91.
  • transceiver circuitry 93 can be coupled to antenna 95.
  • the various components of the user equipment 90 are coupled together by a bus system 99, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus system 99 in the figure.
  • Processor 91 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may pass through the integrated logic circuit of the hardware in the processor 91. Or instructions in software form are completed.
  • the processor 91 described above may be a CPU (Central Processing Unit), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic. Devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 92, and the processor 91 reads the information in the memory 92 and performs the steps of the above method in combination with its hardware.
  • the user equipment 90 can implement various operations related to the UE in FIG. 1 to FIG. 6, and will not be described in detail in order to avoid repetition.
  • the transceiver circuit 93 may send, by using the first connection, the first NAS signaling of the second communication network to the SRC, where the first NAS signaling is used for registration or location update to the second communication network.
  • the transceiver circuit 93 may receive the second NAS signaling of the second communications network that is sent by the SRC through the first connection, where the second NAS signaling is used to respond to the first NAS message or NAS signaling initiated by the communication network related to registration or location update.
  • the transceiver circuit 93 may send, by using the first connection, third NAS signaling for establishing a service in the second communication network to the SRC.
  • the transceiver circuit 93 may receive fourth NAS signaling of the second communication network that is sent by the SRC through the first connection, where the fourth NAS signaling is used to respond to the third NAS message or The NAS signaling initiated by the communication network and related to the establishment of the service.
  • the transceiver circuit 93 may receive the first layer three signaling sent by the SRC through the first connection, where the first layer three signaling is used to transfer the user equipment to the second communication network.
  • the processor 91 can also establish a second connection with the second communication network via the transceiver circuit 93 and perform a service on the second connection according to the first layer three signaling.
  • the transceiver circuit 93 may receive the ringing signaling sent by the SRC through the first connection. Ringing signaling is also a type of NAS signaling.
  • the transceiver circuit 93 may receive the fifth NAS signaling of the second communication network that is sent by the SRC through the first connection, where the fifth NAS signaling is a connected message, and is connected through the first air interface. The SRC sends a sixth NAS signaling, and the sixth NAS signaling is used to acknowledge the connected message.
  • the processor 91 controls the user equipment 70 to perform measurement on the second communication network, and generates a measurement report based on the result of the measurement.
  • the transceiver circuit 93 can send a measurement report generated by the measurement unit to the SRC through the first connection.
  • the transceiver circuit 93 may send capability indication information to the SRC, where the capability indication information is used to indicate that the user equipment has cross-RAT signaling transmission capability.
  • the transceiver circuit 93 may send a signaling container to the SRC through the first connection, where the signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • the transceiver circuit 93 can receive a signaling container from the SRC through the first connection, and the signaling container carries NAS signaling or Layer 3 signaling of the second communication network.
  • FIG. 10 is a block diagram of an SRC in accordance with one embodiment of the present invention.
  • An example of the SRC 110 of FIG. 10 is the SRC 105 of FIG. 1, including a processor 111, a memory 112, and a transceiver circuit 113.
  • the processor 111, the memory 112, and the transceiver circuit 113 are connected by a bus system 119.
  • the memory 112 stores instructions that cause the processor 111 to: establish a first connection with the user equipment via the first communication network via the transceiver circuit 113.
  • the transceiver circuit 113 transmits NAS signaling or layer 3 signaling of the second communication network to the user equipment under control of the processor 111, and/or receives NAS signaling or layer 3 signaling of the second communication network from the user equipment.
  • the first communication network and the second communication network use different RATs, and the SRC 110 is used to manage the radio resources of the first communication network and the second communication network.
  • the embodiment of the present invention transmits NAS/L3 signaling of the second communication system on the first connection established in the first communication system, so that the service can be flexibly converted between different RATs, thereby improving system efficiency.
  • the processor 111 controls the operation of the SRC 110.
  • Memory 112 can include read only memory and random access memory and provides instructions and data to processor 111.
  • the various components of the SRC 110 are coupled together by a bus system 119, which may include, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 119 in the figure.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 111 or by the processor. 111 implementation.
  • the processor 111 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 111 or an instruction in a form of software.
  • the processor 111 described above may be a CPU (Central Processing Unit), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic. Devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 112, and the processor 111 reads the information in the memory 112 and completes the steps of the above method in combination with its hardware.
  • the SRC 110 is capable of implementing various operations involving SRCs in Figures 1 through 6, and will not be described in detail to avoid redundancy.
  • the transceiver circuit 113 may receive the first NAS signaling sent by the user equipment by using the first connection, where the first NAS signaling is used for registration or location update to the second communication network.
  • the transceiver circuit 113 can forward the first NAS signaling to the second communication network.
  • the first NAS signaling or the message or data carrying the first NAS signaling carries type information of the second communication network.
  • the processor 111 determines the second communication network based on the type information so that the transceiver circuit 113 can forward the NAS signaling of the second communication network.
  • the transceiver circuit 113 may receive the second NAS signaling sent by the second communications network, where the second NAS signaling is used to respond to the first NAS signaling or initiated by the second communications network. NAS signaling related to registration or location update; transmitting second NAS signaling to the user equipment over the first connection.
  • the memory 112 may record the identifier of the user equipment, the information of the first communication network where the user equipment resides, and/or the information of the second communication network registered by the user equipment.
  • the transceiver circuit 113 may receive third NAS signaling sent by the user equipment by using the first connection, where the third NAS signaling is used to establish a service in the second communication network, and the transceiver circuit 113 The three NAS signaling is forwarded to the second communication network.
  • the third NAS signaling or the third NAS signaling is cancelled.
  • the information or data may carry type information of the second communication network.
  • the processor 111 can determine the second communication network based on the type information.
  • the transceiver circuit 113 may receive the fourth NAS signaling sent by the second communications network, where the fourth NAS signaling is used to respond to the third NAS message or initiated by the second communications network. Establishing service-related NAS signaling; transmitting, by the first connection, fourth NAS signaling to the user equipment.
  • the processor 111 may allocate a traffic channel of the second communication network to the user equipment.
  • the transceiver circuit 113 can send a first layer three signaling to the user equipment by using the first connection, where the first layer three signaling is used to transfer the user equipment to the service channel of the second communication network allocated by the allocation unit.
  • the transceiver circuit 113 may send the ringing signaling to the user equipment by using the first connection.
  • Ringing signaling is also a type of NAS signaling.
  • the transceiver circuit 113 may send, by using the first connection, the fifth NAS signaling of the second communication network to the user equipment, where the fifth NAS signaling is a connected message, and receiving the user equipment A sixth NAS signaling sent by the connection, and the sixth NAS signaling is used to confirm the connected message of the second communication network.
  • the transceiver circuit 113 may send a measurement control message to the user equipment, where the measurement control message is used to indicate that the user equipment performs measurement on the second communication network, and receives a measurement report generated by the user equipment according to the measurement result.
  • the transceiver circuit 113 may receive the NAS signaling or the layer 3 signaling of the second communications network, and send a signaling container to the user equipment by using the first connection, where the signaling container carries the NAS signaling or layer 3 signaling of the second communication network.
  • the transceiver circuit 113 may receive a signaling container from the user equipment by using the first connection, where the signaling container carries NAS signaling or layer 3 signaling of the second communication network, and NAS signaling or layer 3 of the second communication network Signaling is sent to the second communication network.
  • the communication system of an embodiment of the present invention may include the above-described user equipment 70, 90 or SRC 80, 110.
  • Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Professionals can use different parties for each specific application The described functionality is implemented, but such implementation should not be considered to be beyond the scope of the invention.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the 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 units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

Abstract

本发明实施例提供一种通信方法、用户设备和统一无线控制器。该方法包括:用户设备通过第一通信网络与SRC建立第一连接;用户设备通过第一连接,向SRC发送第二通信网络的NAS信令或层三信令,和/或从SRC接收第二通信网络的NAS信令或层三信令,其中,第一通信网络和第二通信网络使用不同的RAT,SRC用于管理第一通信网络和第二通信网络的无线资源。因此,本发明实施例通过在第一通信系统中建立的第一连接上传输第二通信系统的NAS/L3信令,使得业务能够灵活地在不同RAT之间进行转换,提高了系统效率。

Description

通信方法、 用户设备和统一无线控制器 技术领域
本发明实施例涉及无线通信领域, 并且更具体地, 涉及通信方法、 用户 设备和统一无线控制器。 背景技术
通信网络空口存在多种 RAT( Radio Access Technology,无线接入技术), 如 GSM ( Global System for Mobile Communications, 全球移动通信系统)、 UMTS ( Universal Mobile Telecommunications System, 通用移动通信系统) 和 LTE ( Long Term Evolution, 长期演进)等。
UE ( User Equipment , 用户设备 )和网络之间的通信, 与接入网的空口 所采用的 RAT密切相关。 GSM的一种接入网是 GERAN ( GSM/EDGE Radio Access Network, GSM/EDGE无线接入网;), UMTS的一种接入网是 UTRAN ( UMTS Terrestrial Radio Access Network, UMTS陆地无线接入网;), LTE的 一种接入网是 E-UTRAN ( Evolved-UTRAN, 演进的 UTRAN )。这里, EDGE ( Enhanced Data rate for GSM Evolution, GSM增强数据速率演进)是 GSM 的一种演进技术。 GSM属于 2G ( 2nd Generation, 第二代)移动通信系统, UMTS属于 3G ( 3rd Generation, 第三代)移动通信系统, LTE属于 4G ( 4th Generation, 第四代)移动通信系统。
UE的业务建立、 业务进行以及业务释放过程中的 L3 ( Layer 3, 层三) 信令和 NAS ( Non- Access Spectrum, 非接入层)信令, 都是和空口的 RAT 绑定的。 例如, 如果 UE 注册 /位置更新到 GSM核心网的 MSC ( Mobile Switching Center, 移动交换中心), 则注册 /位置更新的信令都是在 GSM空 口进行传输的。
这种 NAS和 L3信令与空口 RAT绑定的方式, 在建立不同类型的业务 或者业务运行过程中, NAS和 L3信令无法灵活利用各种空口的优势。例如, 无法根据负载等因素灵活传输信令, 造成业务建立和运行的时延大、 效率低 且失败的概率高。 发明内容 本发明实施例提供一种通信方法、 用户设备和统一无线控制器, 能够灵 活地实现业务在不同 RAT之间的转换。
第一方面, 提供了一种通信方法, 包括: 用户设备通过第一通信网络与 统一无线控制器 SRC建立第一连接; 用户设备通过所述第一连接, 向所述 SRC发送第二通信网络的非接入层 NAS信令或层三信令,和 /或从所述 SRC 接收第二通信网络的 NAS信令或层三信令, 其中, 所述第一通信网络和所 述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC用于管理所述第 一通信网络和所述第二通信网络的无线资源。
结合第一方面, 在一种实现方式中, 所述用户设备通过所述第一连接, 向所述 SRC发送第二通信网络的 NAS信令, 包括: 所述用户设备通过所述 第一连接, 向所述 SRC发送所述第二通信网络的第一 NAS信令, 所述第一 NAS信令用于向所述第二通信网络进行注册或位置更新。
结合第一方面及其上述实现方式,在另一种实现方式中,所述第一 NAS 信令或者承载所述第一 NAS信令的消息或数据携带所述第二通信网络的类 型信息。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 包括: 所 述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网络的第 二 NAS信令, 所述第二 NAS信令用于对所述第一 NAS消息进行响应或者 为所述第二通信网络发起的与注册或位置更新相关的 NAS信令。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 向所述 SRC发送第二通信网络的 NAS信令, 包括: 所 述用户设备通过所述第一连接, 向所述 SRC发送用于在所述第二通信网络 中建立业务的第三 NAS信令。
结合第一方面及其上述实现方式,在另一种实现方式中,所述第三 NAS 信令或者承载所述第三 NAS信令的消息或数据携带所述第二通信网络的类 型信息。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 包括: 所 述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网络的第 四 NAS信令, 所述第四 NAS信令用于对所述第三 NAS消息进行响应或者 为所述第二通信网络发起的与建立业务相关的 NAS信令。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 从所述 SRC接收第二通信网络的层三信令, 包括: 所 述用户设备接收所述 SRC通过所述第一连接发送的第一层三信令, 所述第 一层三信令用于将所述用户设备转移到所述第二通信网络; 所述方法还包 括: 所述用户设备根据所述第一层三信令, 与所述第二通信网络建立第二连 接, 并在所述第二连接上执行业务。
结合第一方面及其上述实现方式, 在另一种实现方式中, 在所述用户设 备接收所述第一层三信令之前, 所述用户设备通过所述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 包括: 所述用户设备接收所述 SRC通 过所述第一连接发送的振铃信令。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 还包括: 所述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网络的 第五 NAS信令, 所述第五 NAS信令为连接 connected消息。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接, 向所述 SRC发送第二通信网络的 NAS信令, 还包括: 所述用户设备通过所述第一连接, 向所述 SRC发送第六 NAS信令, 所述第 六 NAS信令用于对所述 connected消息进行确认。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述用户设备对所述第二通信网络进行测量, 根据所述测量的结果生成 测量报告; 所述用户设备通过所述第一连接, 向所述 SRC发送所述测量报 告。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述用户设备向所述 SRC发送能力指示信息, 所述能力指示信息用于 指示所述用户设备具有跨 RAT信令传输能力。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 通过所述第一连接,向所述 SRC发送第二通信网络的 NAS信令或层三信令, 包括: 所述用户设备通过所述第一连接向所述 SRC发送信令容器, 所述信 令容器携带所述第二通信网络的 NAS信令或层三信令; 所述用户设备通过 所述第一连接, 从所述 SRC接收第二通信网络的 NAS信令或层三信令, 包 括: 所述用户设备通过所述第一连接从所述 SRC接收信令容器, 所述信令 容器携带所述第二通信网络的 NAS信令或层三信令。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述第一连接 为第一通信网络中的控制信道。
结合第一方面及其上述实现方式, 在另一种实现方式中, 所述第二连接 为所述第二通信网络中的业务信道。
第二方面, 提供了一种通信方法, 包括: 统一无线控制器 SRC通过第 一通信网络与用户设备建立第一连接; 所述 SRC通过所述第一连接, 向所 述用户设备发送第二通信网络的非接入层 NAS信令或层三信令, 和 /或从所 述用户设备接收第二通信网络的 NAS信令或层三信令, 其中, 所述第一通 信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC用于 管理所述第一通信网络和所述第二通信网络的无线资源。
结合第二方面, 在一种实现方式中, 所述 SRC通过所述第一连接, 从 所述用户设备接收第二通信网络的 NAS信令, 包括: 所述 SRC接收所述用 户设备通过所述第一连接发送的第一 NAS信令, 所述第一 NAS信令用于向 所述第二通信网络进行注册或位置更新; 所述方法还包括: 将所述第一 NAS 信令转发至所述第二通信网络。
结合第二方面及其上述实现方式,在另一种实现方式中,所述第一 NAS 信令或者承载所述第一 NAS信令的消息或数据携带所述第二通信网络的类 型信息, 所述方法还包括: 根据所述类型信息确定所述第二通信网络。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC接收所述第二通信网络发送的第二 NAS信令, 所述第二 NAS 信令用于对所述第一 NAS消息进行响应或者为所述第二通信网络发起的与 注册或位置更新相关的 NAS信令; 其中, 所述 SRC通过所述第一连接, 向 所述用户设备发送第二通信网络的 NAS信令, 包括: 所述 SRC通过所述第 一连接, 向所述用户设备发送所述第二 NAS信令。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC记录所述用户设备的标识、 所述用户设备驻留的所述第一通 信网络的信息和 /或所述用户设备注册的所述第二通信网络的信息。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述 SRC通 过所述第一连接, 从所述用户设备接收第二通信网络的 NAS信令, 包括: 所述 SRC接收所述用户设备通过所述第一连接发送的第三 NAS信令, 所述 第三 NAS信令用于在所述第二通信网络中建立业务; 所述方法还包括: 将 所述第三 NAS信令转发至所述第二通信网络。
结合第二方面及其上述实现方式,在另一种实现方式中,所述第三 NAS 信令或者承载所述第三 NAS信令的消息或数据携带所述第二通信网络的类 型信息, 所述方法还包括: 根据所述类型信息确定所述第二通信网络。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC接收所述第二通信网络发送的第四 NAS信令, 所述第四 NAS 信令用于对所述第三 NAS消息进行响应或者为所述第二通信网络发起的与 建立业务相关的 NAS信令; 其中, 所述 SRC通过所述第一连接, 向所述用 户设备发送第二通信网络的 NAS信令, 包括:所述 SRC通过所述第一连接, 向所述用户设备发送所述第四 NAS信令。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC为所述用户设备分配所述第二通信网络的业务信道; 其中, 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网络的层三信 令, 包括: 所述 SRC通过所述第一连接, 向所述用户设备发送第一层三信 令, 所述第一层三信令用于将所述用户设备转移到所述第二通信网络的业务 信道。
结合第二方面及其上述实现方式, 在另一种实现方式中, 在所述 SRC 为所述用户设备分配所述第二通信网络的业务信道之前, 所述 SRC通过所 述第一连接, 向所述用户设备发送第二通信网络的 NAS信令, 还包括: 所 述 SRC通过所述第一连接, 向所述用户设备发送振铃信令。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述 SRC通 过所述第一连接, 向所述用户设备发送第二通信网络的 NAS信令, 还包括: 所述 SRC通过所述第一连接, 向所述用户设备发送所述第二通信网络的第 五 NAS信令, 所述第五 NAS信令为连接 connected消息。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述 SRC通 过所述第一连接, 从所述用户设备接收第二通信网络的 NAS信令, 还包括: 所述 SRC接收所述用户设备通过所述第一连接发送的第六 NAS信令, 所述 第六 NAS信令用于对所述第二通信网络的 connected消息进行确认。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC向所述用户设备发送测量控制消息, 所述测量控制消息用于 指示所述用户设备对所述第二通信网络进行测量; 所述 SRC接收所述用户 设备根据所述测量的结果生成的测量报告。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC接收所述用户设备发送的能力指示信息, 所述能力指示信息 用于指示所述用户设备具有跨 RAT信令传输能力; 所述 SRC根据所述能力 指示信息配置所述用户设备的跨 RAT信令传输。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述方法还包 括: 所述 SRC接收所述第二通信网络的 NAS信令或层三信令; 所述 SRC 通过所述第一连接, 向所述用户设备发送第二通信网络的 NAS信令或层三 信令, 包括: 所述 SRC将所述第二通信网络的 NAS信令或层三信令填充至 信令容器中, 并通过所述第一连接, 向所述用户设备发送所述信令容器, 结合第二方面及其上述实现方式, 在另一种实现方式中, 所述 SRC通 过所述第一连接, 从所述用户设备接收第二通信网络的 NAS信令或层三信 令, 包括: 所述 SRC通过所述第一连接, 从所述用户设备接收信令容器, 所述信令容器携带所述第二通信网络的 NAS信令或层三信令, 所述方法还 包括: 所述 SRC从信令容器中提取所述第二通信网络的 NAS信令或层三信 令并将所述第二通信网络的 NAS信令或层三信令发送至所述第二通信网络。
结合第二方面及其上述实现方式, 在另一种实现方式中, 所述第一连接 为第一通信网络中的控制信道。
第三方面, 提供了一种用户设备, 包括: 连接单元, 用于通过第一通信 网络与统一无线控制器 SRC建立第一连接; 收发单元, 用于通过所述连接 单元建立的第一连接, 向所述 SRC发送第二通信网络的非接入层 NAS信令 或层三信令, 和 /或从所述 SRC接收第二通信网络的 NAS信令或层三信令, 其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC 用于管理所述第一通信网络和所述第二通信网络的无线资 源。
结合第三方面, 在一种实现方式中, 所述收发单元具体用于通过所述第 一连接, 向所述 SRC发送所述第二通信网络的第一 NAS信令, 所述第一 NAS信令用于向所述第二通信网络进行注册或位置更新。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第二 NAS信令,所述第二 NAS信令用于对所述第一 NAS消息进行响应或者为所 述第二通信网络发起的与注册或位置更新相关的 NAS信令。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于通过所述第一连接, 向所述 SRC发送用于在所述第二通信网络中 建立业务的第三 NAS信令。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第四 NAS信令,所述第四 NAS信令用于对所述第三 NAS消息进行响应或者为所 述第二通信网络发起的与建立业务相关的 NAS信令。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述 SRC通过所述第一连接发送的第一层三信令, 所述第一 层三信令用于将所述用户设备转移到所述第二通信网络; 所述连接单元还用 于根据所述第一层三信令, 与所述第二通信网络建立第二连接, 并在所述第 二连接上执行业务。
结合第三方面及其上述实现方式, 在另一种实现方式中, 在所述收发单 元接收所述第一层三信令之前, 所述收发单元还用于接收所述 SRC通过所 述第一连接发送的振铃信令。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第五 NAS信令, 所述第五 NAS信令为连接 connected消息, 并通过所述第一空 口连接, 向所述 SRC发送第六 NAS信令, 所述第六 NAS信令用于对所述 connected消息进行确认。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述用户设备 还包括: 测量单元, 用于对所述第二通信网络进行测量, 根据所述测量的结 果生成测量报告; 所述收发单元还用于通过所述第一连接, 向所述 SRC发 送所述测量单元生成的测量报告。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 还用于向所述 SRC发送能力指示信息, 所述能力指示信息用于指示所述用 户设备具有跨 RAT信令传输能力。
结合第三方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于通过所述第一连接向所述 SRC发送信令容器, 所述信令容器携带 所述第二通信网络的 NAS信令或层三信令; 或者, 所述收发单元具体用于 通过所述第一连接从所述 SRC接收信令容器, 所述信令容器携带所述第二 通信网络的 NAS信令或层三信令。
第四方面, 提供了一种统一无线控制器, 包括: 连接单元, 用于通过第 一通信网络与用户设备建立第一连接; 收发单元, 用于通过所述连接单元建 立的第一连接, 向所述用户设备发送第二通信网络的非接入层 NAS信令或 层三信令,和 /或从所述用户设备接收第二通信网络的 NAS信令或层三信令, 其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述统一无线控制器用于管理所述第一通信网络和所述第二通信网络 的无线资源。
结合第四方面, 在一种实现方式中, 所述收发单元具体用于接收所述用 户设备通过所述第一连接发送的第一 NAS信令, 所述第一 NAS信令用于向 所述第二通信网络进行注册或位置更新; 所述收发单元还用于将所述第一 NAS信令转发至所述第二通信网络。
结合第四方面及其上述实现方式,在另一种实现方式中,所述第一 NAS 信令或者承载所述第一 NAS信令的消息或数据携带所述第二通信网络的类 型信息, 所述统一无线控制器还包括确定单元, 用于根据所述类型信息确定 所述第二通信网络。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 还用于接收所述第二通信网络发送的第二 NAS信令, 所述第二 NAS信令用 于对所述第一 NAS信令进行响应或者为所述第二通信网络发起的与注册或 位置更新相关的 NAS信令; 通过所述第一连接, 向所述用户设备发送所述 第二 NAS信令。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述用户设备通过所述第一连接发送的第三 NAS信令, 所述 第三 NAS信令用于在所述第二通信网络中建立业务; 所述收发单元还用于 将所述第三 NAS信令转发至所述第二通信网络。
结合第四方面及其上述实现方式,在另一种实现方式中,所述第三 NAS 信令或者承载所述第三 NAS信令的消息或数据携带所述第二通信网络的类 型信息, 所述统一无线控制器还包括确定单元, 用于根据所述类型信息确定 所述第二通信网络。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 还用于接收第二通信网络发送的第四 NAS信令, 所述第四 NAS信令用于对 所述第三 NAS消息进行响应或者为所述第二通信网络发起的与建立业务相 关的 NAS信令; 通过所述第一连接, 向所述用户设备发送所述第四 NAS信 令。
结合第四方面及其上述实现方式, 在另一种实现方式中, 还包括分配单 元, 用于为所述用户设备分配所述第二通信网络的业务信道; 所述收发单元 具体用于通过所述第一连接, 向所述用户设备发送第一层三信令, 所述第一 层三信令用于将所述用户设备转移到所述分配单元分配的第二通信网络的 业务信道。
结合第四方面及其上述实现方式, 在另一种实现方式中, 在所述分配单 元为所述用户设备分配所述第二通信网络的业务信道之前, 所述收发单元具 体用于通过所述第一连接, 向所述用户设备发送振铃信令。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于通过所述第一连接, 向所述用户设备发送所述第二通信网络的第五 NAS信令, 所述第五 NAS信令为连接 connected消息, 并接收所述用户设 备通过所述第一连接发送的第六 NAS信令,所述第六 NAS信令用于对所述 connected消息进行确认。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 还用于向所述用户设备发送测量控制消息, 所述测量控制消息用于指示所述 用户设备对所述第二通信网络进行测量, 并接收所述用户设备根据所述测量 的结果生成的测量报告。
结合第四方面及其上述实现方式, 在另一种实现方式中, 所述收发单元 具体用于接收所述第二通信网络的 NAS信令或层三信令, 并通过所述第一 连接, 向所述用户设备发送信令容器, 所述信令容器携带所述第二通信网络 的 NAS信令或层三信令, 或者, 所述收发单元具体用于通过所述第一连接, 从所述用户设备接收信令容器,所述信令容器携带所述第二通信网络的 NAS 信令或层三信令, 并将所述第二通信网络的 NAS信令或层三信令发送至所 述第二通信网络。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图 仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造 性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是可应用本发明实施例的通信系统的示意架构图。
图 2是本发明一个实施例的通信方法的流程图。
图 3是本发明另一实施例的通信方法的流程图。
图 4是本发明一个实施例的通信过程的示意流程图。
图 5是本发明另一实施例的通信过程的示意流程图。
图 6是本发明另一实施例的通信过程的流程图。
图 7是本发明一个实施例的用户设备的框图。
图 8是本发明一个实施例的 SRC的框图。
图 9是本发明另一实施例的用户设备的框图。
图 10是本发明另一实施例的 SRC的框图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明的技术方案, 可以应用于各种通信系统, 例如: 全球移动通信系 统( GSM, Global System of Mobile communication ), 码分多址( CDMA, Code Division Multiple Access ) 系统, 宽带码分多址( WCDMA, Wideband Code Division Multiple Access Wireless ),通用分组无线业务 ( GPRS , General Packet Radio Service ), 长期演进 ( LTE, Long Term Evolution )等。
用户设备 ( UE , User Equipment ) , 也可称之为移动终端 ( Mobile
Terminal ), 移动台 (Mobile Station ), 移动用户设备等, 可以经无线接入网 (例如, RAN , Radio Access Network )与一个或多个核心网进行通信, 用户 设备可以是移动终端, 如移动电话(或称为"蜂窝"电话)和具有移动终端的 计算机, 例如, 可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的 移动装置, 它们与无线接入网交换语言和 /或数据。
基站,可以是 GSM或 CDMA中的基站( BTS , Base Transceiver Station ), 也可以是 WCDMA中的基站(NodeB ),还可以是 LTE中的演进型基站(eNB 或 e-NodeB , evolutional Node B ), 本发明并不限定。
图 1是可应用本发明实施例的通信系统的示意架构图。 应注意, 图 1的 架构图只是为了描绘本发明实施例可应用的一种场景, 而非限制本发明实施 例的范围。 本发明实施例可以应用于其他多 RAT的通信系统, 这些 RAT可 以是 3GPP中规定的制式, 也可以是其他制式。
如图 1所示, BTS 102是 GSM系统中的基站, NodeB 103是 UMTS系 统中的基站, eNB 104是 LTE系统中的基站。在下面的实施例中, 以 UE 101 驻留在 LTE系统的 eNB 104下, 并且与 SRC ( Single Radio Controller, 统一 无线控制器) 105之间交互有关 MSC 106的 NAS/L3信令的场景为例, 进 行描述。 但本发明实施例对应用场景不做限制。
所谓驻留,是指 UE 101监听 eNB 104发送的 BCCH( Broadcasting Control Channel, 广播控制信道)和 CCCH ( Common Control Channel, 公共控制信 道)等 idle (空闲) 态需要监听的逻辑信道。 BCCH/CCCH也可以单独配置 在某个频率上。 UE 101根据 eNB 104发送的 BCCH/CCCH信息建立与 LTE 系统的空口连接。
SRC 105用于管理各个 RAT的通信网络的无线资源。 以图 1的场景为 例, SRC 105与各个基站 BTS 102、 NodeB 103和 eNB 104连接, 由此管理 各个通信网络的无线资源。
SRC 105还与核心网设备 MSC 106、 SGSN( Serving GPRS Support Node, 服务 GPRS支持节点) 107和 MME ( Mobility Management Entity, 移动性管 理实体) 108连接。 MSC 106是 2G或 3G网络中用于控制所有 BSC ( Base Station Controller, 基站控制器) 的业务、 控制移动终端发起或终止用户 呼叫、 提供交换功能及和系统内其它功能的连接的设备。 SGSN 107是 2G 或 3G网络中的移动管理设备, 用于记录移动终端的当前位置信息, 并在移 动终端和 SGSN之间完成移动分组数据的发送和接收。 MME 108是 4G网络 中的移动管理设备, 用于对移动终端进行移动性管理和承载管理等控制。 为了筒洁起见, 在图 1中没有区分 2G和 3G网络中的不同 MSC, 而将 它们统称为 MSC 106,但本领域技术人员能够理解, MSC 106可以包括不同 RAT下的多个 MSC设备。 同样地,在图 1中没有区分 2G和 3G网络中的不 同 SGSN, 而将它们统称为 SGSN 107, 但本领域技术人员能够理解, SGSN 107可以包括不同 RAT下的多个 SGSN设备。
应注意, 虽然图 1 中描绘了三种 RAT的网络架构, 但本发明实施例对 RAT的数目不作限制, 例如也可以是两个或多于三个。
另外, 虽然图 1 中将 SRC描绘为一个独立的设备, 但本发明实施例对 SRC的实现形式不作限制, 也可以位于 BTS 102、 NodeB 103、 eNB 104、 MSC 106、 SGSN 107或MME108上, 或者位于其他网络设备上, 或者分布 式地实现在不同网络设备上。
图 2是本发明一个实施例的通信方法的流程图。 图 2的方法由用户设备 执行, 例如由图 1所示的 UE 101执行。
201 , 用户设备通过第一通信网络与 SRC建立第一连接。
以图 1的场景为例,UE 101可通过 eNB 104所在的 LTE网络与 SRC 105 建立第一连接。 该第一连接可以是 RRC ( Radio Resource Control, 无线资源 控制) 连接, 或者可以是第一通信网络中的控制信道。 该第一连接可包括 UE 101和 eNB 104之间的空口连接, 以及 eNB 104与 SRC 105之间的有线 连接。
202, 用户设备通过第一连接, 向 SRC发送第二通信网络的 NAS信令 或层三信令, 和 /或从 SRC接收第二通信网络的 NAS信令或层三信令。
其中,第一通信网络和第二通信网络使用不同的 RAT, SRC用于管理第 一通信网络和第二通信网络的无线资源。
例如, 以图 1的场景为例, UE 101可以通过在步骤 201中建立的 LTE 系统下的第一连接, 与 SRC 105交互另一通信网络的 NAS/L3信令, 例如, 可以交互与 MSC 106 (属于 GSM系统或 UMTS系统)有关的 NAS/L3信令。 这种信令交互可以称为跨 RAT信令交互。
可选地,可通过解除 NAS/L3信令与空口 RAT的绑定来实现上述跨 RAT 信令交互。解除这种绑定可以通过将 AS ( Access Spectrum,接入层 )和 NAS 进行解耦的方式实现, 即第二通信系统的 NAS/L3信令可以在第一通信系统 的空口资源上传输。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
例如, UE可通过本发明实施例的跨 RAT信令交互方式, 实现跨 RAT 的注册或位置更新, 即通过第一通信网络在第二通信网络上进行注册或位置 更新。
作为一个实施例, 在步骤 202 中, 用户设备可通过第一连接, 向 SRC 发送第二通信网络的第一 NAS信令, 第一 NAS信令用于向第二通信网络进 行注册或位置更新。
根据位置更新所针对的核心网的不同, 所述位置更新可以包括到 MSC 106的位置区更新, 到 SGSN 107的路由区更新, 到 MME 108的追踪区更新 或到其他核心网设备的移动性管理区域的更新。
根据注册所针对的核心网的不同, 所述注册可包括向 MSC 106的注册, 向 SGSN 107的注册, 向 MME 108的注册或向其他核心网设备的注册
本发明实施例的 NAS信令可利用现有的 NAS 消息来实现, 如 3GPP TS24.008, TS24.301协议中规定的消息。 但本发明实施例对 NAS信令的具 体形式不做限制, 不限于 2G/3G/LTE的 NAS信令, 也不限于 CS ( Circuit Switch, 电路交换)域或 PS ( Packet Switch, 分组交换)域的 NAS信令。
第一 NAS信令或者承载第一 NAS信令的消息或数据可携带指示信息, 用于指示 UE 想要进行注册或位置更新。 可选地, 作为另一实施例, 第一 NAS信令或者承载第一 NAS信令的消息或数据还可以携带第二通信网络的 类型信息。这样可以便于 SRC根据第二通信网络的类型信息确定 UE想要注 册或位置更新的对象。 上述指示信息和类型信息可以由第一 NAS信令自身 携带, 如 NAS信令的 payload (有效负载) 中; 也可以由承载第一 NAS信 令的消息或数据携带, 例如包含注册请求的 UL Information Transfer (上行信 息传输 ) 消息中。
类型信息可以是显式的, 明确地指示具体网元,如 MSC 106、 SGSN 107 或 MME 108; 也可以是隐式的, SRC根据第一 NAS信令的类型(即该第一 NAS信令是 2G MSC的 NAS消息, 还是 3G MSC的 NAS消息, 还是其他 某种 RAT核心网的 NAS消息), 确定如何转发第一 NAS信令。 作为一个非限制性的例子, 以 2比特的类型信息为例, 可以使用 "000" 表示 2G MSC, "001"表示 3G MSC, "010"表示 2G SGSN, "011"表示 3G SGSN, "100" 表示匪 E, "101" 至 "111" 作为保留比特(reserved )。
可选地, 作为另一实施例, 在步骤 202中, 用户设备可接收 SRC通过 第一连接发送的第二通信网络的第二 NAS信令, 第二 NAS信令用于对第一 NAS 消息进行响应或者为第二通信网络发起的与注册或位置更新相关的 NAS信令。
例如, 除了用于注册或位置更新的 NAS信令和相应的响应 NAS信令之 夕卜, 第二通信网络的核心网和 UE之间可能还需要其他 NAS信令交互, 例 如有关鉴权 ( Authentication )和加密模式( Ciphering mode )等的 NAS信令, 这些 NAS信令的交互方式也可以类似地参照第一 NAS信令和第二 NAS信 令, 通过第一通信网络上的空口连接实现。
再例如, UE可通过本发明实施例的跨 RAT信令交互方式, 实现跨 RAT 的业务, 如 CS业务或 PS业务, 即通过第一通信网络发起第二通信网络上 的呼叫或分组业务。
作为一个实施例, 在步骤 202 中, 用户设备可通过第一连接, 向 SRC 发送用于在第二通信网络中建立业务的第三 NAS信令。 第三 NAS信令可以 用于建立呼叫业务或分组业务, 本发明实施例对业务的具体类型不作限制。
可选地, 作为另一实施例, 第三 NAS信令或者承载第三 NAS信令的消 息或数据携带第二通信网络的类型信息。该类型信息可以与上面描述的第一 NAS信令或承载第一 NAS信令的消息或数据所携带的类型信息相同, 因此 不再赘述。
可选地, 作为另一实施例, 在步骤 202中, 用户设备可接收 SRC通过 第一连接发送的第二通信网络的第四 NAS信令, 第四 NAS信令用于对第三 NAS 消息进行响应或者为第二通信网络发起的与建立业务相关的 NAS 信 令。
可选地, 作为另一实施例, 用户设备可接收 SRC通过第一连接发送的 第一层三信令, 第一层三信令用于将用户设备转移到第二通信网络。 例如, SRC可以为用户设备分配第二通信网络的业务信道,以便用户设备能够在该 第二通信网络的业务信道上执行业务。此时,用户设备可根据第一层三信令, 与第二通信网络建立第二连接, 并在第二连接上执行业务。 第二连接可以是 第二通信网络中的业务信道。 另外可选地, 该第一层三信令也可以是第一通 信网络中的相应信令。
具体地, 把用户设备转移到第二通信网络可以有两种办法, 一种是发送 第一通信网络中使用的层三消息 (例如第一通信网络中的切换命令), 另一 种方法是使用第二通信网络中的层三消息 (例如第二通信网络中的指派命 令)。 如果使用第二通信网络中的层三消息, 则可以通过容器的方式发给用 户设备, 如将该容器放在第一网络的 RRC 连接重配置 (RRC connection reconfigure ) 消息中, 用户设备收到后, 取出容器中的消息, 交给第二通信 网络的层三协议栈进行解析, 并按该消息的指示在第二通信网络的业务信道 上进行呼叫业务。
第一层三信令可以是指派命令( assignment command )、重配置命令( RRC reconfigure )或切换命令 ( handover command )等, 本发明实施例对第一层 三命令的具体形式不做限制。
本发明实施例的 L3信令包含现有的 L3消息, 也可以包括 RRC相关的 消息, 如 3GPP 44.018 , 44.060, 25.331 , 36.331协议中规定的消息。 但本发 明实施例对 L3信令的具体形式不做限制, 不限于 2G/3G/LTE的 L3信令, 也不限于 CS域或 PS域的 L3信令。
可选地, 作为另一实施例, 在用户设备接收第一层三信令之前, 用户设 备可接收 SRC通过第一连接发送的振铃(altering )信令。 振铃信令也是一 种 NAS信令。 另外, 振铃信令也可以按照现有方式, 在第二通信系统的 CS 业务信道上传输。
可选地, 作为另一实施例, 用户设备可以接收 SRC通过第一连接发送 的第二通信网络的第五 NAS信令,第五 NAS信令为连接 ( connected )消息。 connected消息用于表示被呼叫方同意本次呼叫。在此情况下,用户设备可通 过第一连接, 向 SRC发送第六 NAS信令, 第六 NAS信令用于对 connected 消息进行确认 ( connected ack )。 另夕卜, connected消息和 connected ack消息 也可以按照现有方式, 在第二通信系统的 CS业务信道上传输。
可选地, 作为另一实施例, 用户设备可以对第二通信网络进行测量, 根 据测量的结果生成测量报告, 然后通过第一连接, 向 SRC发送测量报告。 在此情况下, SRC可根据该测量 告分配第二通信网络的业务信道。
可选地, 作为另一实施例, 用户设备可以向 SRC发送能力指示信息, 能力指示信息用于指示用户设备具有跨 RAT信令传输能力。
能力指示信息可以在建立第一连接的过程中上报给 SRC,也可以在建立 第一连接之后上报, 例如可以在进行 NAS注册或位置更新的过程中上报。
可选地, 作为另一实施例, 上述跨 RAT 信令交互可通过信令容器 ( container )的方式来实现。 例如, 用户设备可通过第一连接向 SRC发送信 令容器, 信令容器携带第二通信网络的 NAS信令或层三信令; 或者, 用户 设备可通过第一连接从 SRC接收信令容器, 信令容器携带第二通信网络的 NAS信令或层三信令。
下面的具体实施例中, 以信令容器的方式为例进行描述, 但本发明实施 例对承载跨 RAT的 NAS/L3信令的消息或数据的具体形式不作任何限制。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
本发明实施例能够充分利用不同 RAT空口的优势。 例如, E-UTRAN空 口具有低时延的优势。 如果利用 E-UTRAN空口作为物理承载, 承载用于建 立 GERAN/UTRAN上的 CS呼叫的 NAS信令,那么可以充分利用 E-UTRAN 空口低时延的优势, 减少空口上 NAS信令的传输时延, 从而带来用户感受 的提升。
图 3是本发明另一实施例的通信方法的流程图。 图 3的方法由 SRC执 行, 例如图 1所示的 SRC 105。 图 3的方法和图 2的方法相对应, 因此将适 当省略重复的描述。
301 , SRC通过第一通信网络与用户设备建立第一连接。
302, SRC通过第一连接, 向用户设备发送第二通信网络的 NAS信令或 层三信令, 和 /或从用户设备接收第二通信网络的 NAS信令或层三信令。
其中,第一通信网络和第二通信网络使用不同的 RAT, SRC用于管理第 一通信网络和第二通信网络的无线资源。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
可选地, 作为一个实施例, 在步骤 302中, SRC可接收用户设备通过第 一连接发送的第一 NAS信令, 第一 NAS信令用于向第二通信网络进行注册 或位置更新。 此时, SRC可将第一 NAS信令转发至第二通信网络, 即转发 至第二通信网络的核心网网元。
可选地, 作为另一实施例, 第一 NAS信令或者承载第一 NAS信令的消 息或数据可携带第二通信网络的类型信息。 此时, SRC可根据类型信息确定 第二通信网络。
可选地, 作为另一实施例, SRC可接收第二通信网络发送的第二 NAS 信令, 第二 NAS信令用于对第一 NAS消息进行响应或者为第二通信网络发 起的与注册或位置更新相关的 NAS信令。 此时, 在步骤 302中, SRC可通 过第一连接, 向用户设备发送第二 NAS信令。
可选地, 作为另一实施例, SRC可记录用户设备的标识、 用户设备驻留 的第一通信网络的信息和 /或用户设备注册的第二通信网络的信息,以备后续 使用。
可选地, 作为另一实施例, 在步骤 302中, SRC可接收用户设备通过第 一连接发送的第三 NAS信令, 第三 NAS信令用于在第二通信网络中建立业 务, 如呼叫业务或分组业务。 此时, SRC可将第三 NAS信令转发至第二通 信网络。
可选地, 作为另一实施例, 第三 NAS信令或者承载第三 NAS信令的消 息或数据可携带第二通信网络的类型信息。 此时, SRC可根据类型信息确定 第二通信网络。
可选地, 作为另一实施例, SRC可接收第二通信网络发送的第四 NAS 信令, 第四 NAS信令用于对第三 NAS消息进行响应或者为第二通信网络发 起的与建立业务相关的 NAS信令。 此时, 在步骤 302中, SRC可通过第一 连接, 向用户设备发送第四 NAS信令。
可选地, 作为另一实施例, SRC可为用户设备分配第二通信网络的业务 信道。 此时, 在步骤 302中, SRC可通过第一连接, 向用户设备发送第一层 三信令, 第一层三信令用于将用户设备转移到第二通信网络的业务信道。
可选地, 作为另一实施例, 在 SRC为用户设备分配第二通信网络的业 务信道之前, SRC可通过第一连接, 向用户设备发送振铃信令。 振铃信令也 是一种 NAS信令。 另外, 振铃信令也可以按照现有方式, 在第二通信系统 的 CS业务信道上传输。
可选地, 作为另一实施例, SRC可通过第一连接, 向用户设备发送第二 通信网络的第五 NAS信令, 第五 NAS信令为 connected消息。 SRC还可以 接收用户设备通过第一连接发送的第六 NAS信令, 第六 NAS信令用于对第 二通信网絡的 connected消息进行确认 ( connected ack )。 另夕卜, connected消 息和 connected ack消息也可以按照现有方式, 在第二通信系统的 CS业务信 道上传输。
可选地, 作为另一实施例, SRC可向用户设备发送测量控制消息, 测量 控制消息用于指示用户设备对第二通信网络进行测量, 然后接收用户设备根 据测量的结果生成的测量报告。 此时, SRC可根据测量报告分配第二通信网 络的业务信道。
可选地, 作为另一实施例, SRC还可以接收用户设备发送的能力指示信 息, 能力指示信息用于指示用户设备具有跨 RAT信令传输能力, 并根据能 力指示信息配置用户设备的跨 RAT信令传输, 例如激活或允许用户设备进 行跨 RAT信令传输。
可选地, 作为另一实施例, SRC可使用信令容器的方式, 在第一通信系 统中传输第二通信系统的 NAS信令或层三信令。 具体地, SRC可接收第二 通信网络的 NAS信令或层三信令,将第二通信网络的 NAS信令或层三信令 填充至信令容器中, 并通过第一连接, 向用户设备发送该信令容器。 这样, 信令容器携带第二通信网络的 NAS信令或层三信令, 由用户设备提取使用。 或者, SRC可通过第一连接, 从用户设备接收信令容器, 信令容器携带第二 通信网络的 NAS信令或层三信令, 然后 SRC可以从信令容器中提取第二通 信网络的 NAS信令或层三信令并将所提取的第二通信网络的 NAS信令或层 三信令发送至第二通信网络, 例如转发至 NAS信令或层三信令所对应的网 元。 但本发明实施例中跨 RAT信令交互的形式不限于信令容器, 而可以是 任何合适的消息或数据。
下面, 结合具体例子, 更加详细地描述本发明的实施例。
图 4是本发明一个实施例的通信过程的示意流程图。 图 4描绘了 UE在 LTE系统中实现 UTMS/GSM的注册和 CS主叫的主要流程。 图 4的实施例 以 UE发起呼叫业务为例进行描述, 但本发明实施例不限于此, 同样可以应 用于 UE发起分组业务的情况。
图 4中, UE可以是图 1的 UE 101 , SRC可以是图 1的 SRC 105 , MSC 可以是图 1的 MSC 106。 401 , UE空口驻留在 LTE, 即 UE可以监听 LTE的 BCCH和 CCCH等 信道, 并根据接收到的 BCCH/CCCH信息, 与 SRC建立 LTE中的 RRC连 接(上述第一连接的一个例子)。
可选地, UE还可以指示 SRC 自己具有跨 RAT信令传输的能力, 这个 能力指示信息也可在 UE进行 NAS注册的流程中进行上报。
402, UE在 LTE空口上发起 MSC注册流程。 例如, UE可通过上述第 一 NAS信令和第二 NAS信令实现 MSC注册。
具体地, UE可指示 SRC要进行 MSC注册。 例如, UE可将 MSC注册 的 NAS消息放在 NAS容器中发给 SRC。
SRC识别 UE的 NAS注册是向 MSC的注册, 将 NAS信令发给相应的
MSC。 此时, 如果 UE上报跨 RAT信令传输的能力指示信息, 则 SRC可配 置 /激活 UE允许跨 RAT信令传输。
SRC将 NAS容器中的 NAS消息提取出来, 并转发给相应的 MSC。 如 果 SRC收到 MSC发送的 NAS响应消息,则将该 NAS响应消息填充到 NAS 容器中通过 LTE空口发给 UE。
UE收到 SRC经由 LTE空口发来的 NAS容器,从中提取出 NAS响应消 息递交给对应的 UMTS/GSM的 NAS协议栈进行处理。
此时, SRC可记录 UE标识、 UE当前驻留的 LTE小区, 和 /或和对应注 册的 MSC的信息, 对后续的 NAS消息做类似处理。
403, 核心网的设备, 如 MSC和 HSS ( Home Subscriber Server, 归属用 户服务器),可保存 UE注册的相关信息, 如小区 ID (标识)等。
这样, 实现了跨 RAT的注册操作。如果 UE在发起呼叫之前已经在第二 通信网络中进行了注册, 则可省略步骤 402-403。
404, UE在 LTE空口传输有关 CS呼叫建立的 NAS信令, 以建立 CS 呼叫业务。 有关 CS呼叫建立的 NAS消息可利用现有的相关 NAS信令。
405 , SRC分配 UMTS/GSM中的 CS业务信道, 并预留相应的资源。 SRC 可在识别出 CS 呼叫建立的 NAS 信令完成之后, SRC 发起
UMTS/GSM的 CS 业务信道建立流程。 例如, MSC可发送呼叫进程 ( call proceeding ) 消息则表示呼叫的建立完成。 或者, MSC可通知 SRC, 对 UE 建立 UMTS/GSM CS业务信道
406, SRC在 LTE空口下发信令, 以将 UE转移到 UMTS/GSM CS业务 信道上
例如, SRC可构造指派消息或者切换消息, 发给 UE, 以将 UE转移到 UMTS/GSM CS业务信道上。
407, UE在 UMTS/GSM CS业务信道上进行 CS语音业务。
这样, 能够充分利用 E-UTRAN 空口低时延的优势, 减少空口上 NAS 信令的传输时延。
图 5是本发明另一实施例的通信过程的示意流程图。 图 5详细描绘了驻 留在 LTE中的 UE发起 GSM的 CS呼叫的过程。 并且, 在图 5中, UE对 GSM网络进行测量, 以便于 SRC分配合适的 CS业务信道。
501 , UE触发 CS呼叫。
假设 UE在发起呼叫前处于空闲态,因此 UE需要建立 LTE空口的 RRC 连接, 步骤 502-503非穷尽性地描绘了建立 RRC连接的主要信令。 另一方 面, 如果 UE在发起呼叫前处于连接态, 则可以省略步骤 502-503。
502, RRC连接请求消息 ( RRC connection request )。
503, RRC连接建立完成消息 ( RRC connection setup complete )。
504, 在建立 LTE 下的 RRC 连接之后, UE 向 SRC发送 CM ( Call Management呼叫管理 )业务请求消息 ( CM service request )。
该 CM业务请求消息针对 GSM的 MSC, 是上述第三 NAS信令的一个 例子, 可通过 LTE的 RRC连接发送给 SRC。
505 , SRC检测到 CS呼叫。
SRC通过接收到 RRC消息, 识别出该 RRC消息中包含的是向 MSC建 立 CS呼叫的 NAS消息, 为 UE找到对应的 MSC。 或者, SRC可以从所保 存的 UE信息中找到对应的 MSC。 例如, SRC可以根据在图 4的步骤 402 中记录 UE信息找到 UE已注册的 MSC。
506, SRC向 UE发送测量控制消息,例如 GSM NCL( Neighbor Cell List, 邻区列表)才艮告指示消息 ( GSM NCL reporting indication )。
SRC为了能够为 UE分配合适的业务信道, 需要 UE对要进行后续 CS 语音业务的 GSM网络进行测量。
因此, 在 LTE空口的 RRC连接建立后, SRC可以下发测量控制消息, 指示 UE测量相应制式的小区。 如 SRC知道 UE发起的到 2G MSC的 CS呼 叫业务, 可以指示 UE对 GERAN邻区进行测量。 507, SRC将 CM业务请求消息转发至相应的 MSC。
在图 5的实施例中, 假设 MSC和 VLR ( Visitor Location Register, 拜访 位置寄存器)位于同一实体中。 但是本发明实施例不限于此, 同样可以应用 于 MSC和 VLR分离的场景, 这样的应用仍落入本发明实施例的范围内。
另外应注意, 本发明实施例对步骤 506和 507的执行顺序不作限制, 也 可在步骤 508之后执行, 或者步骤 506和步骤 507同步执行。
508, MSC/VLR向 UE发送鉴权请求消息 ( authentication request )。
509, UE向 MSC/VLR发送鉴权响应消息 ( authentication response )„ 510 , MSC/VLR 向 UE 发送加密模式命令消息 ( ciphering mode command )。
511 , UE向 MSC/VLR发送加密模式完成消息( ciphering mode complete )。 临时移动用户标识)重定位命令消息 ( TMSI relocation command )。
513, UE向 MSC/VLR发送 TMSI重定位完成消息 ( TMSI relocation complete λ
514, UE向 MSC/VLR发送业务建立消息 ( SETUP )。
此时, 由于尚未建立 UE和 GSM之间的空口连接, 因此步骤 508-514 均可以按照图 2和图 3的方法,通过 LTE的空口传输 UE和 GSM MSC之间 的信令。
515, MSC向 SRC发送呼叫进程消息( call proceeding ), 表示呼叫建立 完成, 作为对步骤 504的 CM业务请求消息的响应 (即上述第四 NAS消息 的一个例子)。
516, SRC向 UE转发呼叫进程消息( call proceeding )。 例如, SRC可通 过 LTE的 RRC连接执行步骤 516。
517, UE完成对 GSM网络的测量, 向 SRC发送测量报告 (GSM NCL reporting )。
步骤 517有可能在步骤 507-516的过程中执行, 而不必一定在步骤 516 之后执行。假设步骤 517能够在 SRC为 UE分配 GSM的业务信道之前完成。
518, SRC根据 UE的测量报告, 为 UE分配 GSM业务信道。 SRC在分 配 GSM业务信道时, 还可以参照相应的实现策略。 分配 GSM业务信道的 方法可以参照步骤 518a和 518b。
518a, SRC向相应的 BTS发送信道激活消息 ( channel activation )。
518b, BTS向 SRC返回信道激活完成消息(channel activation ack ), 表 示相应的业务信道已分配好。
519, SRC向 UE发送指派命令或切换命令,以将 UE转移到 GSM网络。 步骤 519中的命令是 L3信令, 可按照图 2和图 3的方法, 在 LTE的空 口连接上发送给 UE。
步骤 501-519为 LTE系统中的操作。 其中步骤 508~516是传输 GSM中 呼叫建立过程中的 NAS消息, 可根据网络配置增加或者删减这些 NAS消息 的传输, 如增加用户设备能力查询等 NAS消息。
步骤 520-527为 GSM系统中的操作,并且可以与现有技术的 CS呼叫过 程中的相应操作相同。 因此, 适当省略详细的描述。
520, UE向 BTS发送 SABM ( Set Asynchronous Balanced Mode, 设置 异步平衡模式) 消息。
521 , BTS向 UE返回 UA ( Unnumbered Acknowledgment, 无编号确认 ) 消息。
522, UE向 SRC发送指派完成消息 (assignment complete ), 表示业务 信道建立完成。
523, SRC向 MSC转发指派完成消息 ( assignment complete )。
524, MSC向 UE发送振铃消息 (altering )。
该振铃消息是在 SRC为 UE建立的 CS业务信道上传输的。 在确保业务 信道已经建立后再将振铃发给 UE, 这样用户按下接通键就可以立刻进行语 音通话。
525 , 如果被呼叫方确认接听该次呼叫, MSC 向 UE 发送连接消息 ( connected ) 。
526, UE向 MSC发送连接确认消息 ( connected ack ) 。
527, 连接完成之后, UE在 GSM系统中进行语音业务。
这样, SRC可以根据 UE的测量报告, 分配合适的 GSM业务信道, 改 善用户的通话感受。
图 6是本发明另一实施例的通信过程的流程图。 图 6中指派业务信道的 时机比图 5更晚。 另外, 在图 6的实施例中, 与图 5相同的过程将适当省略 详细的描述。
步骤 601-603与图 5的步骤 515-517相同。 为了筒洁, 未描绘步骤 601 之前的步骤(即图 5中的步骤 501-514 )。
601 , MSC向 SRC发送呼叫进程消息( call proceeding ), 表示呼叫建立 完成。
602, SRC向 UE转发呼叫进程消息( call proceeding )。 例如, SRC可通 过 LTE的 RRC连接执行步骤 602。
603, UE完成对 GSM网络的测量, 向 SRC发送测量报告 ( GSM NCL reporting )。 步骤 603是可选的步骤, 或者只需在步骤 606之前执行即可。
604, MSC在发送 call proceeding后, 就发送振铃消息( alerting )。 SRC 将该 alerting消息在 LTE空口上发送给 UE。该振铃消息也是一种 NAS信令。
605,如果被呼叫方确认接听该次呼叫, MSC会发送连接消息( connected ) 给 UE。
该连接消息是上述第五 NAS信令的一个例子, 可按照图 2和图 3的方 法, 在 LTE空口上进行传输。
606, SRC收到 connected消息后, 会触发 GSM业务信道建立的流程。 步骤 606可以按照与步骤 518相同的方式执行, 因此不再赘述。
607, UE收到 connected消息后, 向 MSC发送连接确认消息( connected ack )。 该连接确认消息是上述第六 NAS信令的一个例子, 也可以在 LTE空 口上发送。
608, SRC向 UE发送指派命令或切换命令,以将 UE转移到 GSM网络。 SRC收到 connected ack后, 并确认业务信道成功预留后, 就可以将 UE 转移到该业务信道上, 可以通过下发指派命令或者切换命令给 UE来实现该 转移。
步骤 609-613为 GSM系统中的操作,并且可以与现有技术的 CS呼叫过 程中的相应操作相同。 因此, 适当省略详细的描述。
609, UE向 BTS发送 SABM ( Set Asynchronous Balanced Mode, 设置 异步平衡模式) 消息。
610, BTS向 UE返回 UA ( Unnumbered Acknowledgment, 无编号确认 ) 消息。
611 , UE向 SRC发送指派完成消息 (assignment complete ), 表示业务 信道建立完成。
612, SRC向 MSC转发指派完成消息 ( assignment complete )„
613, 连接完成之后, UE在 GSM系统中进行语音业务。
图 6的实施例采用晚指派业务信道的方式, 等被叫用户接听呼叫再进行 业务信道建立。 这样做的好处就是, 如果被叫用户不应答, 则没有必要为主 叫 UE再分配业务信道, 从而能够节省资源。
图 7是本发明一个实施例的用户设备的框图。 图 7的用户设备 70的一 个例子是图 1中的 UE 101 , 包括连接单元 71和收发单元 72。
连接单元 71通过第一通信网络与 SRC建立第一连接。 收发单元 72通 过连接单元 71建立的第一连接, 向 SRC发送第二通信网络的 NAS信令或 层三信令, 和 /或从 SRC接收第二通信网络的 NAS信令或层三信令。 第一通 信网络和第二通信网络使用不同的 RAT , SRC用于管理第一通信网络和第二 通信网络的无线资源。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
用户设备 70能够实现图 1-图 6中涉及 UE的各种操作, 为避免重复, 不再详细描述。
可选地, 作为一个实施例, 收发单元 72可通过第一连接, 向 SRC发送 第二通信网络的第一 NAS信令, 第一 NAS信令用于向第二通信网络进行注 册或位置更新。
可选地, 作为另一实施例, 收发单元 72可接收 SRC通过第一连接发送 的第二通信网络的第二 NAS信令, 第二 NAS信令用于对第一 NAS消息进 行响应或者为第二通信网络发起的与注册或位置更新相关的 NAS信令。
可选地, 作为另一实施例, 收发单元 72可通过第一连接, 向 SRC发送 用于在第二通信网络中建立业务的第三 NAS信令。
可选地, 作为另一实施例, 收发单元 72可接收 SRC通过第一连接发送 的第二通信网络的第四 NAS信令, 第四 NAS信令用于对第三 NAS消息进 行响应或者为第二通信网络发起的与建立业务相关的 NAS信令。
可选地, 作为另一实施例, 收发单元 72可接收 SRC通过第一连接发送 的第一层三信令, 第一层三信令用于将用户设备转移到第二通信网络。 连接 单元 71还可以根据第一层三信令, 与第二通信网络建立第二连接, 并在第 二连接上执行业务。
可选地, 作为另一实施例, 在收发单元 72接收第一层三信令之前, 收 发单元 72可接收 SRC通过第一连接发送的振铃信令。 振铃信令也是一种 NAS信令。
可选地, 作为另一实施例, 收发单元 72可接收 SRC通过第一连接发送 的第二通信网络的第五 NAS信令, 第五 NAS信令为 connected消息, 并通 过第一空口连接, 向 SRC 发送第六 NAS 信令, 第六 NAS 信令用于对 connected消息进行确认。
可选地, 用户设备 70还可以测量单元 73 , 用于对第二通信网络进行测 量, 根据测量的结果生成测量报告。 收发单元 72可通过第一连接, 向 SRC 发送测量单元生成的测量报告。
可选地, 作为另一实施例, 收发单元 72可向 SRC发送能力指示信息, 能力指示信息用于指示用户设备具有跨 RAT信令传输能力。
可选地, 作为另一实施例, 收发单元 72可通过第一连接向 SRC发送信 令容器, 信令容器携带第二通信网络的 NAS信令或层三信令。 或者, 收发 单元 72可通过第一连接从 SRC接收信令容器, 信令容器携带第二通信网络 的 NAS信令或层三信令。
图 8是本发明一个实施例的 SRC的框图。 图 8的 SRC 80的一个例子是 图 1的 SRC 105 , 包括连接单元 81和收发单元 82。
连接单元 81通过第一通信网络与用户设备建立第一连接。 收发单元 82 通过连接单元 81建立的第一连接, 向用户设备发送第二通信网络的 NAS信 令或层三信令,和 /或从用户设备接收第二通信网络的 NAS信令或层三信令。 第一通信网络和第二通信网络使用不同的 RAT, SRC 80用于管理第一通信 网络和第二通信网络的无线资源。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
SRC 80能够实现图 1-图 6中涉及 SRC的各种操作, 为避免重复, 不再 详细描述。
可选地, 作为一个实施例, 收发单元 82可接收用户设备通过第一连接 发送的第一 NAS信令, 第一 NAS信令用于向第二通信网络进行注册或位置 更新。 收发单元 82可以将第一 NAS信令转发至第二通信网络。
可选地, 作为另一实施例, 第一 NAS信令或者承载第一 NAS信令的消 息或数据携带第二通信网络的类型信息。 SRC 80还可以包括确定单元 83 , 用于根据类型信息确定第二通信网络, 以便收发单元 82能够转发第二通信 网络的 NAS信令。
可选地, 作为另一实施例, 收发单元 82可接收第二通信网络发送的第 二 NAS信令, 第二 NAS信令用于对第一 NAS信令进行响应或者为第二通 信网络发起的与注册或位置更新相关的 NAS信令; 通过第一连接, 向用户 设备发送第二 NAS信令。
可选地, 作为另一实施例, 第三 NAS信令或者承载第三 NAS信令的消 息或数据可携带第二通信网络的类型信息。 SRC 80还可以包括确定单元 83, 用于根据类型信息确定第二通信网络。
可选地, 作为另一实施例, 收发单元 82可接收第二通信网络发送的第 四 NAS信令, 第四 NAS信令用于对第三 NAS消息进行响应或者为第二通 信网络发起的与建立业务相关的 NAS信令; 通过第一连接, 向用户设备发 送第四 NAS信令。
可选地, 作为另一实施例, SRC 80可记录用户设备的标识、 用户设备 驻留的第一通信网络的信息和 /或用户设备注册的第二通信网络的信息。
可选地, 作为另一实施例, 收发单元 82可接收用户设备通过第一连接 发送的第三 NAS信令, 第三 NAS信令用于在第二通信网络中建立业务, 收 发单元 82将第三 NAS信令转发至第二通信网络。
可选地, 作为另一实施例, SRC 80还包括分配单元 84, 用于为用户设 备分配第二通信网络的业务信道。 收发单元 82可通过第一连接, 向用户设 备发送第一层三信令, 第一层三信令用于将用户设备转移到分配单元分配的 第二通信网络的业务信道。
可选地, 作为另一实施例, 在分配单元 84为用户设备分配第二通信网 络的业务信道之前, 收发单元 82可通过第一连接, 向用户设备发送振铃信 令。 振铃信令也是一种 NAS信令。
可选地, 作为另一实施例, 收发单元 82可通过第一连接, 向用户设备 发送述第二通信网络的第五 NAS信令, 第五 NAS信令为 connected消息, 并接收用户设备通过第一连接发送的第六 NAS信令, 第六 NAS信令用于对 第二通信网络的 connected消息进行确认。
可选地, 作为另一实施例, 收发单元 82可向用户设备发送测量控制消 息, 测量控制消息用于指示用户设备对第二通信网络进行测量, 并接收用户 设备根据测量的结果生成的测量报告。
可选地,作为另一实施例,收发单元 82可接收所述第二通信网络的 NAS 信令或层三信令, 并通过第一连接, 向用户设备发送信令容器, 信令容器携 带第二通信网络的 NAS信令或层三信令。 或者, 收发单元 82可通过第一连 接, 从用户设备接收信令容器, 信令容器携带第二通信网络的 NAS信令或 层三信令, 并将第二通信网络的 NAS信令或层三信令发送至第二通信网络。
图 9是本发明另一实施例的用户设备的框图。 图 9的用户设备 90的一 个例子是图 1的 UE 101 , 包括处理器 91、 存储器 92和收发电路 93。 处理 器 91、 存储器 92和收发电路 93通过总线系统 99相连。
存储器 92存储使得处理器 91执行以下操作的指令: 经由收发电路 93 , 通过第一通信网络与 SRC建立第一连接。
收发电路 93在处理器 91的控制之下, 用于通过第一连接, 向 SRC发 送第二通信网络的 NAS信令或层三信令,和 /或从 SRC接收第二通信网络的 NAS信令或层三信令,其中,第一通信网络和第二通信网络使用不同的 RAT, SRC用于管理第一通信网络和第二通信网络的无线资源。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
此外, 用户设备 90还可以包括天线 95。 处理器 91控制用户设备 90的 操作。 存储器 92可以包括只读存储器和随机存取存储器, 并向处理器 91提 供指令和数据。 具体的应用中, 收发电路 93可以耦合到天线 95。 用户设备 90的各个组件通过总线系统 99耦合在一起,其中总线系统 99除包括数据总 线之外, 还可以包括电源总线、 控制总线和状态信号总线等。 但是为了清楚 说明起见, 在图中将各种总线都标为总线系统 99。
上述本发明实施例揭示的方法可以应用于处理器 91 中, 或者由处理器 91实现。 处理器 91可能是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中, 上述方法的各步骤可以通过处理器 91 中的硬件的集成逻辑电路 或者软件形式的指令完成。上述的处理器 91可以是 CPU ( Central Processing Unit, 中央处理单元)、 通用处理器、 数字信号处理器(DSP )、 专用集成电 路(ASIC )、 现成可编程门阵列 (FPGA )或者其他可编程逻辑器件、 分立 门或者晶体管逻辑器件、 分立硬件组件。 可以实现或者执行本发明实施例中 的公开的各方法、 步骤及逻辑框图。 通用处理器可以是微处理器或者该处理 器也可以是任何常规的处理器等。 结合本发明实施例所公开的方法的步骤可 以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合 执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读 存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该 存储介质位于存储器 92,处理器 91读取存储器 92中的信息,结合其硬件完 成上述方法的步骤。
用户设备 90能够实现图 1-图 6中涉及 UE的各种操作, 为避免重复, 不再详细描述。
可选地, 作为一个实施例, 收发电路 93可通过第一连接, 向 SRC发送 第二通信网络的第一 NAS信令, 第一 NAS信令用于向第二通信网络进行注 册或位置更新。
可选地, 作为另一实施例, 收发电路 93可接收 SRC通过第一连接发送 的第二通信网络的第二 NAS信令, 第二 NAS信令用于对第一 NAS消息进 行响应或者为第二通信网络发起的与注册或位置更新相关的 NAS信令。
可选地, 作为另一实施例, 收发电路 93可通过第一连接, 向 SRC发送 用于在第二通信网络中建立业务的第三 NAS信令。
可选地, 作为另一实施例, 收发电路 93可接收 SRC通过第一连接发送 的第二通信网络的第四 NAS信令, 第四 NAS信令用于对第三 NAS消息进 行响应或者为第二通信网络发起的与建立业务相关的 NAS信令。
可选地, 作为另一实施例, 收发电路 93可接收 SRC通过第一连接发送 的第一层三信令, 第一层三信令用于将用户设备转移到第二通信网络。 处理 器 91还可以根据第一层三信令, 经由收发电路 93与第二通信网络建立第二 连接, 并在第二连接上执行业务。
可选地, 作为另一实施例, 在收发电路 93接收第一层三信令之前, 收 发电路 93 可接收 SRC通过第一连接发送的振铃信令。 振铃信令也是一种 NAS信令。 可选地, 作为另一实施例, 收发电路 93可接收 SRC通过第一连接发送 的第二通信网络的第五 NAS信令, 第五 NAS信令为 connected消息, 并通 过第一空口连接, 向 SRC 发送第六 NAS 信令, 第六 NAS 信令用于对 connected消息进行确认。
可选地, 处理器 91控制用户设备 70对第二通信网络进行测量, 根据测 量的结果生成测量报告。 收发电路 93可通过第一连接, 向 SRC发送测量单 元生成的测量报告。
可选地, 作为另一实施例, 收发电路 93可向 SRC发送能力指示信息, 能力指示信息用于指示用户设备具有跨 RAT信令传输能力。
可选地, 作为另一实施例, 收发电路 93可通过第一连接向 SRC发送信 令容器, 信令容器携带第二通信网络的 NAS信令或层三信令。 或者, 收发 电路 93可通过第一连接从 SRC接收信令容器, 信令容器携带第二通信网络 的 NAS信令或层三信令。
图 10是本发明一个实施例的 SRC的框图。 图 10的 SRC 110的一个例 子是图 1的 SRC 105, 包括处理器 111、存储器 112和收发电路 113。 处理器 111、 存储器 112和收发电路 113通过总线系统 119相连。
存储器 112存储使得处理器 111 执行以下操作的指令: 经由收发电路 113, 通过第一通信网络与用户设备建立第一连接。
收发电路 113在处理器 111的控制之下, 向用户设备发送第二通信网络 的 NAS信令或层三信令,和 /或从用户设备接收第二通信网络的 NAS信令或 层三信令。 第一通信网络和第二通信网络使用不同的 RAT, SRC 110用于管 理第一通信网络和第二通信网络的无线资源。
因此, 本发明实施例通过在第一通信系统中建立的第一连接上传输第二 通信系统的 NAS/L3信令, 使得业务能够灵活地在不同 RAT之间进行转换, 提高了系统效率。
处理器 111控制 SRC 110的操作。存储器 112可以包括只读存储器和随 机存取存储器, 并向处理器 111提供指令和数据。 SRC 110的各个组件通过 总线系统 119耦合在一起, 其中总线系统 119除包括数据总线之外, 还可以 包括电源总线、 控制总线和状态信号总线等。 但是为了清楚说明起见, 在图 中将各种总线都标为总线系统 119。
上述本发明实施例揭示的方法可以应用于处理器 111中, 或者由处理器 111实现。 处理器 111可能是一种集成电路芯片, 具有信号的处理能力。 在 实现过程中, 上述方法的各步骤可以通过处理器 111中的硬件的集成逻辑电 路或者软件形式的指令完成。 上述的处理器 111 可以是 CPU ( Central Processing Unit, 中央处理单元)、 通用处理器、 数字信号处理器( DSP )、 专 用集成电路(ASIC )、 现成可编程门阵列 (FPGA )或者其他可编程逻辑器 件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以实现或者执行本发明 实施例中的公开的各方法、 步骤及逻辑框图。 通用处理器可以是微处理器或 者该处理器也可以是任何常规的处理器等。 结合本发明实施例所公开的方法 的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件 模块组合执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可 编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介 质中。 该存储介质位于存储器 112, 处理器 111读取存储器 112中的信息, 结合其硬件完成上述方法的步骤。
SRC 110能够实现图 1-图 6中涉及 SRC的各种操作, 为避免重复, 不 再详细描述。
可选地, 作为一个实施例, 收发电路 113可接收用户设备通过第一连接 发送的第一 NAS信令, 第一 NAS信令用于向第二通信网络进行注册或位置 更新。 收发电路 113可以将第一 NAS信令转发至第二通信网络。
可选地, 作为另一实施例, 第一 NAS信令或者承载第一 NAS信令的消 息或数据携带第二通信网络的类型信息。 处理器 111根据类型信息确定第二 通信网络, 以便收发电路 113能够转发第二通信网络的 NAS信令。
可选地, 作为另一实施例, 收发电路 113可接收第二通信网络发送的第 二 NAS信令, 第二 NAS信令用于对第一 NAS信令进行响应或者为第二通 信网络发起的与注册或位置更新相关的 NAS信令; 通过第一连接, 向用户 设备发送第二 NAS信令。
可选地, 作为另一实施例, 存储器 112可记录用户设备的标识、 用户设 备驻留的第一通信网络的信息和 /或用户设备注册的第二通信网络的信息。
可选地, 作为另一实施例, 收发电路 113可接收用户设备通过第一连接 发送的第三 NAS信令, 第三 NAS信令用于在第二通信网络中建立业务, 收 发电路 113将第三 NAS信令转发至第二通信网络。
可选地, 作为另一实施例, 第三 NAS信令或者承载第三 NAS信令的消 息或数据可携带第二通信网络的类型信息。 处理器 111可根据类型信息确定 第二通信网络。
可选地, 作为另一实施例, 收发电路 113可接收第二通信网络发送的第 四 NAS信令, 第四 NAS信令用于对第三 NAS消息进行响应或者为第二通 信网络发起的与建立业务相关的 NAS信令; 通过第一连接, 向用户设备发 送第四 NAS信令。
可选地, 作为另一实施例, 处理器 111可以为用户设备分配第二通信网 络的业务信道。 收发电路 113可通过第一连接, 向用户设备发送第一层三信 令, 第一层三信令用于将用户设备转移到分配单元分配的第二通信网络的业 务信道。
可选地, 作为另一实施例, 在处理器 111为用户设备分配第二通信网络 的业务信道之前,收发电路 113可通过第一连接,向用户设备发送振铃信令。 振铃信令也是一种 NAS信令。
可选地, 作为另一实施例, 收发电路 113可通过第一连接, 向用户设备 发送述第二通信网络的第五 NAS信令, 第五 NAS信令为 connected消息, 并接收用户设备通过第一连接发送的第六 NAS信令, 第六 NAS信令用于对 第二通信网络的 connected消息进行确认。
可选地, 作为另一实施例, 收发电路 113可向用户设备发送测量控制消 息, 测量控制消息用于指示用户设备对第二通信网络进行测量, 并接收用户 设备根据测量的结果生成的测量报告。
可选地, 作为另一实施例, 收发电路 113 可接收所述第二通信网络的 NAS信令或层三信令, 并通过第一连接, 向用户设备发送信令容器, 信令容 器携带第二通信网络的 NAS信令或层三信令。 或者, 收发电路 113可通过 第一连接, 从用户设备接收信令容器, 信令容器携带第二通信网络的 NAS 信令或层三信令, 并将第二通信网络的 NAS信令或层三信令发送至第二通 信网络。
本发明实施例的通信系统可包括上述用户设备 70、 90或 SRC 80、 110。 本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特 定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能, 但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁, 上述描 述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前 述的存储介质包括: U盘、移动硬盘、只读存储器( ROM , Read-Only Memory )、 随机存取存储器(RAM, Random Access Memory ), 磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权利要求
1、 一种通信方法, 其特征在于, 包括:
用户设备通过第一通信网络与统一无线控制器 SRC建立第一连接; 用户设备通过所述第一连接, 向所述 SRC发送第二通信网络的非接入 层 NAS信令或层三信令, 和 /或从所述 SRC接收第二通信网络的 NAS信令 或层三信令,
其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC 用于管理所述第一通信网络和所述第二通信网络的无线资 源。
2、 如权利要求 1所述的方法, 其特征在于, 所述用户设备通过所述第 一连接, 向所述 SRC发送第二通信网络的 NAS信令, 包括:
所述用户设备通过所述第一连接, 向所述 SRC发送所述第二通信网络 的第一 NAS信令, 所述第一 NAS信令用于向所述第二通信网络进行注册或 位置更新。
3、 如权利要求 2所述的方法, 其特征在于, 所述第一 NAS信令或者承 载所述第一 NAS信令的消息或数据携带所述第二通信网络的类型信息。
4、 如权利要求 2或 3所述的方法, 其特征在于, 所述用户设备通过所 述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 包括:
所述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网 络的第二 NAS信令, 所述第二 NAS信令用于对所述第一 NAS消息进行响 应或者为所述第二通信网络发起的与注册或位置更新相关的 NAS信令。
5、 如权利要求 1-4任一项所述的方法, 其特征在于, 所述用户设备通 过所述第一连接, 向所述 SRC发送第二通信网络的 NAS信令, 包括: 所述用户设备通过所述第一连接, 向所述 SRC发送用于在所述第二通 信网络中建立业务的第三 NAS信令。
6、 如权利要求 5所述的方法, 其特征在于, 所述第三 NAS信令或者承 载所述第三 NAS信令的消息或数据携带所述第二通信网络的类型信息。
7、 如权利要求 5或 6所述的方法, 其特征在于, 所述用户设备通过所 述第一连接, 从所述 SRC接收第二通信网络的 NAS信令, 包括:
所述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网 络的第四 NAS信令, 所述第四 NAS信令用于对所述第三 NAS消息进行响 应或者为所述第二通信网络发起的与建立业务相关的 NAS信令。
8、 如权利要求 1-7任一项所述的方法, 其特征在于, 所述用户设备通 过所述第一连接, 从所述 SRC接收第二通信网络的层三信令, 包括:
所述用户设备接收所述 SRC通过所述第一连接发送的第一层三信令, 所述第一层三信令用于将所述用户设备转移到所述第二通信网络;
所述方法还包括: 所述用户设备根据所述第一层三信令, 与所述第二通 信网络建立第二连接, 并在所述第二连接上执行业务。
9、 如权利要求 8所述的方法, 其特征在于, 在所述用户设备接收所述 第一层三信令之前, 所述用户设备通过所述第一连接, 从所述 SRC接收第 二通信网络的 NAS信令, 包括:
所述用户设备接收所述 SRC通过所述第一连接发送的振铃信令。
10、 如权利要求 9所述的方法, 其特征在于, 所述用户设备通过所述第 一连接, 从所述 SRC接收第二通信网络的 NAS信令, 还包括:
所述用户设备接收所述 SRC通过所述第一连接发送的所述第二通信网 络的第五 NAS信令, 所述第五 NAS信令为连接 connected消息。
11、 如权利要求 10所述的方法, 其特征在于, 所述用户设备通过所述 第一连接, 向所述 SRC发送第二通信网络的 NAS信令, 还包括:
所述用户设备通过所述第一连接, 向所述 SRC发送第六 NAS信令, 所 述第六 NAS信令用于对所述 connected消息进行确认。
12、如权利要求 1-11任一项所述的方法,其特征在于,所述方法还包括: 所述用户设备对所述第二通信网络进行测量,根据所述测量的结果生成 测量报告;
所述用户设备通过所述第一连接, 向所述 SRC发送所述测量报告。
13、 如权利要求 1-12任一项所述的方法, 其特征在于, 所述方法还包 括:
所述用户设备向所述 SRC发送能力指示信息, 所述能力指示信息用于 指示所述用户设备具有跨 RAT信令传输能力。
14、 如权利要求 1-13 任一项所述的方法, 其特征在于, 所述用户设备 通过所述第一连接,向所述 SRC发送第二通信网络的 NAS信令或层三信令, 包括: 所述用户设备通过所述第一连接向所述 SRC发送信令容器, 所述信 令容器携带所述第二通信网络的 NAS信令或层三信令;
所述用户设备通过所述第一连接 ,从所述 SRC接收第二通信网络的 NAS 信令或层三信令, 包括: 所述用户设备通过所述第一连接从所述 SRC接收 信令容器, 所述信令容器携带所述第二通信网络的 NAS信令或层三信令。
15、 如权利要求 1-14任一项所述的方法, 其特征在于, 所述第一连接 为第一通信网络中的控制信道。
16、如权利要求 8-11任一项所述的方法, 其特征在于, 所述第二连接为 所述第二通信网络中的业务信道。
17、 一种通信方法, 其特征在于, 包括:
统一无线控制器 SRC通过第一通信网络与用户设备建立第一连接; 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网络的非 接入层 NAS 信令或层三信令, 和 /或从所述用户设备接收第二通信网络的 NAS信令或层三信令,
其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC 用于管理所述第一通信网络和所述第二通信网络的无线资 源。
18、 如权利要求 17所述的方法, 其特征在于, 所述 SRC通过所述第一 连接, 从所述用户设备接收第二通信网络的 NAS信令, 包括:
所述 SRC接收所述用户设备通过所述第一连接发送的第一 NAS信令, 所述第一 NAS信令用于向所述第二通信网络进行注册或位置更新;
所述方法还包括: 将所述第一 NAS信令转发至所述第二通信网络。
19、 如权利要求 18所述的方法, 其特征在于, 所述第一 NAS信令或者 承载所述第一 NAS信令的消息或数据携带所述第二通信网络的类型信息, 所述方法还包括: 根据所述类型信息确定所述第二通信网络。
20、 如权利要求 18或 19所述的方法, 其特征在于, 所述方法还包括: 所述 SRC接收所述第二通信网络发送的第二 NAS信令,所述第二 NAS 信令用于对所述第一 NAS消息进行响应或者为所述第二通信网络发起的与 注册或位置更新相关的 NAS信令;
其中, 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网 络的 NAS信令, 包括:
所述 SRC通过所述第一连接,向所述用户设备发送所述第二 NAS信令。
21、 如权利要求 20所述的方法, 其特征在于, 所述方法还包括: 所述 SRC记录所述用户设备的标识、 所述用户设备驻留的所述第一通 信网络的信息和 /或所述用户设备注册的所述第二通信网络的信息。
22、 如权利要求 17-21任一项所述的方法, 其特征在于, 所述 SRC通过 所述第一连接, 从所述用户设备接收第二通信网络的 NAS信令, 包括: 所述 SRC接收所述用户设备通过所述第一连接发送的第三 NAS信令, 所述第三 NAS信令用于在所述第二通信网络中建立业务;
所述方法还包括: 将所述第三 NAS信令转发至所述第二通信网络。
23、 如权利要求 22所述的方法, 其特征在于, 所述第三 NAS信令或者 承载所述第三 NAS信令的消息或数据携带所述第二通信网络的类型信息, 所述方法还包括: 根据所述类型信息确定所述第二通信网络。
24、 如权利要求 22或 23所述的方法, 其特征在于, 所述方法还包括: 所述 SRC接收所述第二通信网络发送的第四 NAS信令,所述第四 NAS 信令用于对所述第三 NAS消息进行响应或者为所述第二通信网络发起的与 建立业务相关的 NAS信令;
其中, 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网 络的 NAS信令, 包括:
所述 SRC通过所述第一连接,向所述用户设备发送所述第四 NAS信令。
25、 如权利要求 17-24任一项所述的方法, 其特征在于, 所述方法还包 括: 所述 SRC为所述用户设备分配所述第二通信网络的业务信道;
其中, 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网 络的层三信令, 包括:
所述 SRC通过所述第一连接, 向所述用户设备发送第一层三信令, 所 述第一层三信令用于将所述用户设备转移到所述第二通信网络的业务信道。
26、 如权利要求 25所述的方法, 其特征在于, 在所述 SRC为所述用户 设备分配所述第二通信网络的业务信道之前, 所述 SRC通过所述第一连接, 向所述用户设备发送第二通信网络的 NAS信令, 还包括:
所述 SRC通过所述第一连接, 向所述用户设备发送振铃信令。
27、 如权利要求 26所述的方法, 其特征在于, 所述 SRC通过所述第一 连接, 向所述用户设备发送第二通信网络的 NAS信令, 还包括:
所述 SRC通过所述第一连接, 向所述用户设备发送所述第二通信网络 的第五 NAS信令, 所述第五 NAS信令为连接 connected消息。
28、 如权利要求 27所述的方法, 其特征在于, 所述 SRC通过所述第一 连接, 从所述用户设备接收第二通信网络的 NAS信令, 还包括:
所述 SRC接收所述用户设备通过所述第一连接发送的第六 NAS信令, 所述第六 NAS信令用于对所述第二通信网络的 connected消息进行确认。
29、 如权利要求 17-28任一项所述的方法, 其特征在于, 所述方法还包 括:
所述 SRC 向所述用户设备发送测量控制消息, 所述测量控制消息用于 指示所述用户设备对所述第二通信网络进行测量;
所述 SRC接收所述用户设备根据所述测量的结果生成的测量报告。
30、 如权利要求 17-29任一项所述的方法, 其特征在于, 所述方法还包 括:
所述 SRC接收所述用户设备发送的能力指示信息, 所述能力指示信息 用于指示所述用户设备具有跨 RAT信令传输能力;
所述 SRC根据所述能力指示信息配置所述用户设备的跨 RAT信令传输。
31、 如权利要求 17-30任一项所述的方法, 其特征在于, 所述方法还包 括:
所述 SRC接收所述第二通信网络的 NAS信令或层三信令;
所述 SRC通过所述第一连接,向所述用户设备发送第二通信网络的 NAS 信令或层三信令, 包括:
所述 SRC将所述第二通信网络的 NAS信令或层三信令填充至信令容器 中, 并通过所述第一连接, 向所述用户设备发送所述信令容器,
32、 如权利要求 17-31任一项所述的方法, 其特征在于, 所述 SRC通过 所述第一连接,从所述用户设备接收第二通信网络的 NAS信令或层三信令, 包括:
所述 SRC通过所述第一连接, 从所述用户设备接收信令容器, 所述信 令容器携带所述第二通信网络的 NAS信令或层三信令,
所述方法还包括:所述 SRC从信令容器中提取所述第二通信网络的 NAS 信令或层三信令并将所述第二通信网络的 NAS信令或层三信令发送至所述 第二通信网络。
33、 如权利要求 17-32任一项所述的方法, 其特征在于, 所述第一连接 为第一通信网络中的控制信道。
34、 一种用户设备, 其特征在于, 包括:
连接单元, 用于通过第一通信网络与统一无线控制器 SRC建立第一连 接;
收发单元, 用于通过所述连接单元建立的第一连接, 向所述 SRC发送 第二通信网络的非接入层 NAS信令或层三信令,和 /或从所述 SRC接收第二 通信网络的 NAS信令或层三信令,
其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术 RAT, 所述 SRC 用于管理所述第一通信网络和所述第二通信网络的无线资 源。
35、 如权利要求 34所述的用户设备, 其特征在于, 所述收发单元具体 用于通过所述第一连接, 向所述 SRC发送所述第二通信网络的第一 NAS信 令, 所述第一 NAS信令用于向所述第二通信网络进行注册或位置更新。
36、 如权利要求 35所述的用户设备, 其特征在于, 所述收发单元具体 用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第二 NAS 信令, 所述第二 NAS信令用于对所述第一 NAS消息进行响应或者为所述第 二通信网络发起的与注册或位置更新相关的 NAS信令。
37、 如权利要求 34-36任一项所述的用户设备, 其特征在于, 所述收发 单元具体用于通过所述第一连接, 向所述 SRC发送用于在所述第二通信网 络中建立业务的第三 NAS信令。
38、 如权利要求 37所述的用户设备, 其特征在于, 所述收发单元具体 用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第四 NAS 信令, 所述第四 NAS信令用于对所述第三 NAS消息进行响应或者为所述第 二通信网络发起的与建立业务相关的 NAS信令。
39、 如权利要求 34-38任一项所述的用户设备, 其特征在于, 所述收发 单元具体用于接收所述 SRC通过所述第一连接发送的第一层三信令, 所述 第一层三信令用于将所述用户设备转移到所述第二通信网络;
所述连接单元还用于根据所述第一层三信令, 与所述第二通信网络建立 第二连接, 并在所述第二连接上执行业务。
40、 如权利要求 39所述的用户设备, 其特征在于, 在所述收发单元接 收所述第一层三信令之前, 所述收发单元还用于接收所述 SRC通过所述第 一连接发送的振铃信令。
41、 如权利要求 40所述的用户设备, 其特征在于, 所述收发单元具体 用于接收所述 SRC通过所述第一连接发送的所述第二通信网络的第五 NAS 信令,所述第五 NAS信令为连接 connected消息,并通过所述第一空口连接, 向所述 SRC发送第六 NAS信令, 所述第六 NAS信令用于对所述 connected 消息进行确认。
42、 如权利要求 34-41任一项所述的用户设备, 其特征在于, 还包括: 测量单元, 用于对所述第二通信网络进行测量, 根据所述测量的结果生 成测量报告;
所述收发单元还用于通过所述第一连接, 向所述 SRC发送所述测量单 元生成的测量报告。
43、 如权利要求 34-42任一项所述的用户设备, 其特征在于, 所述收发 单元还用于向所述 SRC发送能力指示信息, 所述能力指示信息用于指示所 述用户设备具有跨 RAT信令传输能力。
44、 如权利要求 34-43任一项所述的用户设备, 其特征在于, 所述收发 单元具体用于通过所述第一连接向所述 SRC发送信令容器, 所述信令容器 携带所述第二通信网络的 NAS信令或层三信令; 或者,
所述收发单元具体用于通过所述第一连接从所述 SRC接收信令容器, 所述信令容器携带所述第二通信网络的 NAS信令或层三信令。
45、 一种统一无线控制器, 其特征在于, 包括:
连接单元, 用于通过第一通信网络与用户设备建立第一连接;
收发单元, 用于通过所述连接单元建立的第一连接, 向所述用户设备发 送第二通信网络的非接入层 NAS信令或层三信令, 和 /或从所述用户设备接 收第二通信网络的 NAS信令或层三信令,
其中, 所述第一通信网络和所述第二通信网络使用不同的无线接入技术
RAT, 所述统一无线控制器用于管理所述第一通信网络和所述第二通信网络 的无线资源。
46、 如权利要求 45所述的统一无线控制器, 其特征在于, 所述收发单 元具体用于接收所述用户设备通过所述第一连接发送的第一 NAS信令, 所 述第一 NAS信令用于向所述第二通信网络进行注册或位置更新;
所述收发单元还用于将所述第一 NAS信令转发至所述第二通信网络。
47、如权利要求 46所述的统一无线控制器,其特征在于,所述第一 NAS 信令或者承载所述第一 NAS信令的消息或数据携带所述第二通信网络的类 型信息,
所述统一无线控制器还包括确定单元,用于根据所述类型信息确定所述 第二通信网络。
48、 如权利要求 46或 47所述的统一无线控制器, 其特征在于, 所述收 发单元还用于接收所述第二通信网络发送的第二 NAS信令, 所述第二 NAS 信令用于对所述第一 NAS信令进行响应或者为所述第二通信网络发起的与 注册或位置更新相关的 NAS信令; 通过所述第一连接, 向所述用户设备发 送所述第二 NAS信令。
49、 如权利要求 45-48任一项所述的统一无线控制器, 其特征在于, 所 述收发单元具体用于接收所述用户设备通过所述第一连接发送的第三 NAS 信令, 所述第三 NAS信令用于在所述第二通信网络中建立业务;
所述收发单元还用于将所述第三 NAS信令转发至所述第二通信网络。
50、 如权利要求 49所述的方法, 其特征在于, 所述第三 NAS信令或者 承载所述第三 NAS信令的消息或数据携带所述第二通信网络的类型信息, 所述统一无线控制器还包括确定单元, 用于根据所述类型信息确定所述 第二通信网络。
51、 如权利要求 49或 50所述的方法, 其特征在于, 所述收发单元还用 于接收第二通信网络发送的第四 NAS信令,所述第四 NAS信令用于对所述 第三 NAS消息进行响应或者为所述第二通信网络发起的与建立业务相关的 NAS信令; 通过所述第一连接, 向所述用户设备发送所述第四 NAS信令。
52、 如权利要求 45-51任一项所述的统一无线控制器, 其特征在于, 还 包括分配单元, 用于为所述用户设备分配所述第二通信网络的业务信道; 所述收发单元具体用于通过所述第一连接, 向所述用户设备发送第一层 三信令,所述第一层三信令用于将所述用户设备转移到所述分配单元分配的 第二通信网络的业务信道。
53、 如权利要求 52所述的统一无线控制器, 其特征在于, 在所述分配 单元为所述用户设备分配所述第二通信网络的业务信道之前, 所述收发单元 具体用于通过所述第一连接, 向所述用户设备发送振铃信令。
54、 如权利要求 53所述的统一无线控制器, 其特征在于, 所述收发单 元具体用于通过所述第一连接, 向所述用户设备发送所述第二通信网络的第 五 NAS信令, 所述第五 NAS信令为连接 connected消息, 并接收所述用户 设备通过所述第一连接发送的第六 NAS信令, 所述第六 NAS信令用于对所 述 connected消息进行确认。
55、 如权利要求 45-54任一项所述的统一无线控制器, 其特征在于, 所 述收发单元还用于向所述用户设备发送测量控制消息, 所述测量控制消息用 于指示所述用户设备对所述第二通信网络进行测量, 并接收所述用户设备根 据所述测量的结果生成的测量 告。
56、 如权利要求 45-55任一项所述的统一无线控制器, 其特征在于, 所 述收发单元具体用于接收所述第二通信网络的 NAS信令或层三信令, 并通 过所述第一连接, 向所述用户设备发送信令容器, 所述信令容器携带所述第 二通信网络的 NAS信令或层三信令, 或者,
所述收发单元具体用于通过所述第一连接,从所述用户设备接收信令容 器, 所述信令容器携带所述第二通信网络的 NAS信令或层三信令, 并将所 述第二通信网络的 NAS信令或层三信令发送至所述第二通信网络。
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