WO2016061735A1 - 一种接入网络的方法以及相关装置 - Google Patents

一种接入网络的方法以及相关装置 Download PDF

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Publication number
WO2016061735A1
WO2016061735A1 PCT/CN2014/088950 CN2014088950W WO2016061735A1 WO 2016061735 A1 WO2016061735 A1 WO 2016061735A1 CN 2014088950 W CN2014088950 W CN 2014088950W WO 2016061735 A1 WO2016061735 A1 WO 2016061735A1
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Prior art keywords
network element
configuration information
access network
rrc connection
message
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PCT/CN2014/088950
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English (en)
French (fr)
Inventor
于映辉
马慧
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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.)
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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/CN2014/088950 priority Critical patent/WO2016061735A1/zh
Priority to CN201480030843.4A priority patent/CN105723794B/zh
Publication of WO2016061735A1 publication Critical patent/WO2016061735A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for accessing a network and related devices.
  • the network access scheme of the user equipment needs to establish an RRC (Radio Resource Control) connection between the UE and the access network after the random access procedure is triggered. Therefore, the UE is changed from the idle state to the data-transferable state, where the establishment of the RRC connection is initiated by the UE sending an RRC connection request message to the access network, and after the access network receives the RRC connection request message, the allocation of the radio resource and the establishment of the information are started.
  • the steps of carrying the bearer, establishing the user plane bearer, transmitting data, and releasing the bearer, etc., the entire network access process needs to implement a complete set of complex signaling procedures.
  • MTC Machine Type Communications
  • the embodiment of the invention provides a method for accessing a network and related devices, which can optimize the network access process without changing the core network, and improve the use efficiency of the wireless network resource.
  • a first aspect of the embodiment of the present invention provides an access network element, where the access network element includes:
  • a receiving unit configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection;
  • a sending unit configured to reply, to the UE, a random access reply message according to the random access request message received by the receiving unit, where the random access reply message includes the access network element as Radio resource allocation information allocated by the UE;
  • a processing unit configured to establish an RRC connection with the radio resource configuration information in the random access reply message sent by the UE according to the sending unit;
  • the receiving unit is further configured to receive an RRC connection setup complete message sent by the UE.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information
  • the processing unit is specifically configured to establish an SRB with the UE based on the SRB configuration information.
  • the SRB configuration information includes logical channel configuration information and a medium access control layer MAC. Any one or more of configuration information and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information.
  • the processing unit is further configured to: after the receiving unit receives the RRC connection setup complete message sent by the UE, based on the service request information and the core network element in the RRC connection setup complete message received by the receiving unit establish connection.
  • the sending unit is further configured to: after the processing unit establishes a connection with the core network element based on the service request information in the RRC connection setup complete message received by the receiving unit, send an RRC connection reconfiguration message to the UE, where The RRC connection reconfiguration message carries data radio bearer DRB configuration information;
  • the processing unit is further configured to establish a DRB with the DRB configuration information in the RRC connection reconfiguration message sent by the UE according to the sending unit.
  • the radio resource configuration information further includes DRB configuration information
  • the sending unit is further configured to: after the processing unit establishes a connection with the core network element based on the service request information in the RRC connection setup complete message received by the receiving unit, the RRC connection reconfiguration message sent to the UE
  • the RRC connection reconfiguration message carries a DRB identifier, the DRB Establishing a correspondence between the identifier and the DRB configuration information;
  • the processing unit is further configured to establish, by the UE, the DRB according to the DRB configuration information corresponding to the DRB identifier in the RRC connection reconfiguration message sent by the sending unit.
  • the receiving unit is further configured to: after the processing unit and the UE establish a DRB based on the DRB configuration information, receive an indication message that is returned by the UE, where the indication message is used to indicate that the RRC connection reconfiguration is completed;
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes bearer configuration information and logical channel configuration. Any one or more of MAC configuration information and PHY configuration information.
  • the sending unit is further configured to: before the sending unit sends an RRC connection reconfiguration message to the UE, the processing unit is based on the service request information and the core network in the RRC connection setup complete message received by the receiving unit. After the UE establishes the connection, sending a security mode instruction message to the UE, where the security mode instruction message carries security mode information;
  • the receiving unit is further configured to: after the receiving unit receives the indication message replied by the UE, receive a security mode complete message replied by the UE.
  • the RRC connection reconfiguration message also carries security mode information
  • the indication message also carries security mode reply information.
  • the random access request message further carries NAS security configuration information
  • the processing unit is further configured to: when the NAS security configuration is not changed, query the local service request information or generate a service request message according to the random access request message received by the receiving unit. interest;
  • the processing unit is further configured to establish a connection with the core network element based on the service request information that is queried or generated by the processing unit;
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the processing unit is specifically configured to establish an SRB with the UE based on the SRB configuration information and establish a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used for Indicates whether the NAS security configuration has changed.
  • the access network element and the UE When the original SRB configuration information of the previous access network is saved, the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate that the original SRB before the UE is restored;
  • the processing unit is specifically configured to: restore, by the UE, the original SRB according to the SRB indication in the random access reply message sent by the sending unit.
  • the request information is used to A cause value indication indicating the cause of the RRC connection establishment.
  • a second aspect of the embodiments of the present invention provides a UE, where the UE includes:
  • a sending unit configured to send a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection;
  • a receiving unit configured to receive a random access reply message that is sent by the access network element according to the random access request message sent by the sending unit, where the random access reply message includes the access network element as a Decoding the radio resource configuration information allocated by the UE;
  • a processing unit configured to establish an RRC connection with the radio resource configuration information in the random access reply message received by the receiving unit by the access network element;
  • the sending unit is further configured to send an RRC connection setup complete message to the access network element.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information
  • the processing unit is specifically configured to establish an SRB with the access network element based on the SRB configuration information.
  • the SRB configuration information includes logical channel configuration information and a medium access control layer MAC. Any one or more of configuration information and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information.
  • the receiving unit is further configured to: after the sending unit sends an RRC connection setup complete message to the access network element, receive an RRC connection reconfiguration message sent by the access network element, where the RRC connection reconfiguration message is sent Carrying data radio bearer DRB configuration information; the RRC connection reconfiguration message is sent after the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message sent by the sending unit;
  • the processing unit is further configured to establish, by the access network element, the DRB according to the DRB configuration information in the RRC connection reconfiguration message received by the receiving unit.
  • the radio resource configuration information further includes DRB configuration information;
  • the RRC connection setup complete message carries service request information;
  • the receiving unit is further configured to: after the sending unit sends an RRC connection setup complete message to the access network element, receive an RRC connection reconfiguration message sent by the access network element, where the RRC connection reconfiguration message is sent Carrying a DRB identifier, the DRB identifier and the DRB configuration information are associated with each other; the RRC connection reconfiguration message is based on the service in the RRC connection setup complete message sent by the access network element by the sending unit The request information is sent after establishing a connection with the core network element;
  • the processing unit is further configured to establish, by the access network element, the DRB according to the DRB configuration information corresponding to the DRB identifier in the RRC connection reconfiguration message received by the receiving unit.
  • the sending unit is further configured to: after the processing unit and the access network element establish a DRB based on the DRB configuration information, return an indication message to the access network element, where the indication message is used to refer to Indicates that the RRC connection reconfiguration is completed;
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes bearer configuration information and logical channel configuration. Any one or more of MAC configuration information and PHY configuration information.
  • the receiving unit is further configured to: before the receiving unit receives the RRC connection reconfiguration message sent by the access network element, the access network element is based on the service in the RRC connection setup complete message sent by the sending unit. After the request information is connected to the core network element, the security mode command message sent by the access network element is received, and the security mode command message carries security mode information;
  • the sending unit is further configured to: after the sending unit returns an indication message to the access network element, return a security mode complete message to the access network element.
  • the RRC connection reconfiguration message also carries security mode information
  • the indication message also carries security mode reply information.
  • the random access request message further carries NAS security configuration information
  • the random access reply message is used by the access network element to query the local service request information or the generated service request information according to the random access request message, and establish a connection with the core network element based on the service request information. After sending;
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the processing unit is specifically configured to establish an SRB with the access network element based on the SRB configuration information and establish a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used for indication Whether the NAS security configuration has changed.
  • the UE and the access network element are saved.
  • the SRB configuration information includes an SRB indication, where the SRB indication is used to indicate that the original SRB before the UE is restored;
  • the processing unit is specifically configured to restore the original SRB based on the SRB indication with the access network element.
  • the request information includes A cause value indication indicating the cause of the RRC connection establishment.
  • a third aspect of the embodiments of the present invention provides a method for accessing a network, where the method includes:
  • the access network element replies to the UE with a random access reply message, where the random access reply message includes radio resource configuration information allocated by the access network element to the UE;
  • the access network element receives an RRC connection setup complete message sent by the UE.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information.
  • Establishing an RRC connection between the access network element and the UE based on the radio resource configuration information includes:
  • the access network element and the UE establish an SRB based on the SRB configuration information.
  • the SRB configuration information includes logical channel configuration information and a medium access control layer MAC. Any one or more of configuration information and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information.
  • the method further includes:
  • the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message.
  • the access network element After the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message, the access network element further includes:
  • the access network element sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message carries data radio bearer DRB configuration information;
  • the access network element and the UE establish a DRB based on the DRB configuration information.
  • the radio resource configuration information further includes DRB configuration information
  • the method further includes:
  • RRC connection reconfiguration message sent by the access network element to the UE, where the RRC connection reconfiguration message carries a DRB identifier, and a correspondence between the DRB identifier and the DRB configuration information is established;
  • the access network element and the UE establish a DRB based on the DRB configuration information corresponding to the DRB identifier.
  • the access network element and the UE are based on the After the DRB configuration information is established, the DRB further includes:
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes bearer configuration information and logical channel configuration. Any one or more of MAC configuration information and PHY configuration information.
  • the access network element Before the access network element sends an RRC connection reconfiguration message to the UE, the access network element further establishes a connection with the core network element based on the service request information in the RRC connection setup complete message.
  • the access network element sends a security mode instruction message to the UE, where the security mode instruction message carries security mode information;
  • the method further includes:
  • the access network element receives a security mode complete message replied by the UE.
  • the RRC connection reconfiguration message also carries security mode information
  • the indication message also carries security mode reply information.
  • the random access request message further carries NAS security configuration information
  • the method further includes:
  • the access network element queries the local service request information or generates the service request information according to the random access request message, and establishes a connection with the core network element based on the service request information.
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the access network element establishes an SRB with the UE based on the SRB configuration information, and establishes a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used for Indicates whether the NAS security configuration has changed.
  • the access network element and the UE When the original SRB configuration information of the previous access network is saved, the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate that the original SRB before the UE is restored;
  • the establishing the SRB by the access network element and the UE based on the SRB configuration information includes:
  • the access network element and the UE restore the original SRB based on the SRB indication.
  • the request information includes A cause value indication indicating the cause of the RRC connection establishment.
  • a fourth aspect of the embodiments of the present invention provides a method for accessing a network, where the method includes:
  • the UE sends a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection;
  • the UE sends an RRC Connection Setup Complete message to the access network element.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information
  • Establishing an RRC connection between the UE and the access network element based on the radio resource configuration information includes:
  • the UE and the access network element establish an SRB based on the SRB configuration information.
  • the SRB configuration information includes logical channel configuration information and a medium access control layer MAC. Any one or more of configuration information and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information
  • the method further includes:
  • an RRC connection reconfiguration message sent by the access network element where the RRC connection reconfiguration message carries data radio bearer DRB configuration information; the RRC connection reconfiguration message is based on an RRC connection of the access network element
  • the service request information in the establishment completion message is sent after establishing a connection with the core network element;
  • the UE and the access network element establish a DRB based on the DRB configuration information.
  • the radio resource configuration information further includes DRB configuration information;
  • the RRC connection setup complete message carries service request information;
  • the method further includes:
  • the RRC connection reconfiguration message carries a DRB identifier, and a correspondence between the DRB identifier and the DRB configuration information is established;
  • the RRC connection The reconfiguration message is sent after the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message;
  • the UE and the access network element establish a DRB based on the DRB configuration information corresponding to the DRB identifier.
  • the UE and the access network element are based on After the DRB configuration information is established, the DRB further includes:
  • the UE returns an indication message to the access network element, where the indication message is used to indicate that the RRC connection reconfiguration is completed.
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes bearer configuration information and logical channel configuration. Any one or more of MAC configuration information and PHY configuration information.
  • the access network element Before the UE receives the RRC connection reconfiguration message sent by the access network element, the access network element further includes: after establishing the connection between the service request information in the RRC connection setup complete message and the core network element:
  • the method further includes:
  • the UE replies to the access network element with a security mode complete message.
  • the RRC connection reconfiguration message also carries security mode information
  • the indication message also carries security mode reply information.
  • the random access request message further carries NAS security configuration information
  • the random access reply message queries the local network service request information or generates service request information according to the random access request message, and is based on the service request.
  • the information is sent after establishing a connection with the core network element;
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the UE and the access network element establish an SRB based on the SRB configuration information and establish a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used for indicating Whether the NAS security configuration has changed.
  • the UE and the access network element are saved.
  • the SRB configuration information includes an SRB indication, where the SRB indication is used to indicate that the original SRB before the UE is restored;
  • the UE and the access network element restore the original SRB based on the SRB indication.
  • the request information includes A cause value indication indicating the cause of the RRC connection establishment.
  • a fifth aspect of the embodiments of the present invention provides a system for accessing a network, including:
  • An access network element configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection; and replies to the UE with a random access reply message, where the random access
  • the incoming reply message includes radio resource configuration information allocated by the access network element to the UE; and the UE establishes an RRC connection based on the radio resource configuration information; and receives an RRC connection setup complete message sent by the UE.
  • the UE is configured to send the random access request message to the access network element, receive the random access reply message replied by the access network element, and the access network element is based on the wireless
  • the resource configuration information establishes an RRC connection; and sends the RRC connection setup complete message to the access network element.
  • the random access request message received by the access network element carries the request information for requesting to establish an RRC connection, and the access network element allocates the radio resource to the UE according to the request message, and The UE replies to the random access reply message including the radio resource configuration information, so that the UE can be configured according to the radio resource configuration information, establish an RRC connection with the access network element based on the radio resource configuration information, and after the RRC connection is completed, The RRC connection setup complete message is replied to the access network element.
  • the embodiment of the present invention can complete the allocation of the radio resource by the access network element in the random access procedure, and encapsulate the allocated radio resource configuration information in the random access reply message, so that the UE After the completion of the random access procedure, the RRC connection can be established directly with the access network element by using the radio resource configuration information, and the network access procedure can be optimized to solve the problem of excessive control plane overhead, thereby effectively improving the use efficiency of the wireless network resource.
  • the entire network access procedure only involves signaling optimization between the UE and the access network, and no modification to the core network is required.
  • FIG. 1 is a schematic diagram of an embodiment of a system for accessing a network according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a method for accessing a network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another embodiment of a method for accessing a network according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another embodiment of a method for accessing a network according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a method for accessing a network according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of another embodiment of a method for accessing a network according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of another embodiment of a method for accessing a network according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of an embodiment of an access network element according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of an access network element according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another embodiment of an access network element according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of another embodiment of an access network element according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of an embodiment of a UE according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of another embodiment of a UE according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of another embodiment of a UE according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram of another embodiment of a UE according to an embodiment of the present invention.
  • the embodiment of the invention provides a method for accessing a network and related devices, which can optimize the network access process without changing the core network, and improve the use efficiency of the wireless network resource. The details are described below separately.
  • the technical solution of the present invention can be applied to various communication systems, such as: GSM (Global System for Mobile Communication), CDMA (Code Division Multiple Access), WCDMA, CDMA2000, WIMAX (Worldwide Interoperability for Microwave Access, global interoperability microwave access, wideband code division multiple access, GPRS (General Packet Radio Service), LTE (Long Term Evolution).
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • WIMAX Worldwide Interoperability for Microwave Access
  • global interoperability microwave access global interoperability microwave access
  • wideband code division multiple access wideband code division multiple access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FIG. 1 it is a schematic structural diagram of a communication system according to the present invention, which includes a core network element 11 , an access network element 12 , and a UE 13 ; the core network element 11 can be connected and connected to the access network element 12 by wire.
  • the incoming network element 12 can be communicatively coupled to at least one UE 13 in a wireless manner.
  • the core network element 11 and the access network element 12 on the network side may be upper
  • the core network part and the access network part in the arbitrarily standard communication system such as GSM, CDMA, or LTE are not limited herein.
  • the core network is a WCDMA core network
  • the access network is a UTRAN (Universal Terrestrial Radio Access Network)
  • the UTRAN includes an RNC (Radio Network Controller) and a base station (NodeB).
  • the UE wherein the RNC controls the radio resources of the UTRAN, including completing connection establishment and disconnection, handover, macro division and merge, and radio resource management control.
  • the core network is an LTE core network, including an MME, an SAE GW, and the like
  • the access network includes an evolved base station (eNodeB) and a UE.
  • the eNodeB not only has the functions of the original NodeB, but also performs most of the functions of the original RNC, including the physical layer, the MAC layer, the RRC, the scheduling, the access control, the bearer control, and the access mobility management.
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • the UE 13 may be any device with a network connection function, such as a mobile phone supporting a network connection function, an MTC terminal, a television, a server, a wireless router, various other household appliances or office equipment, etc. Not listed here.
  • the access network element 12 is configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection; and replies to the UE with random access.
  • a reply message the random access reply message includes radio resource configuration information allocated by the access network element to the UE; establishing an RRC connection with the UE based on the radio resource configuration information; and receiving an RRC sent by the UE Connection establishment complete message.
  • the UE is configured to send the random access request message to the access network element, receive the random access reply message replied by the access network element, and the access network element is based on the wireless
  • the resource configuration information establishes an RRC connection; and sends the RRC connection setup complete message to the access network element.
  • an embodiment of a method for accessing a network in an embodiment of the present invention includes:
  • the access network element receives a random access request message sent by the UE.
  • the UE may send a random access request message to the access network element on the resource indicated by the DCI (Downlink Control Information) for the resource to initiate the randomization. Access process.
  • the random access request message carries request information for requesting to establish an RRC connection.
  • the related parameters that carry the random access may refer to the existing related standards and the provisions in the subsequent related standards, and are not described in this embodiment.
  • the access network element returns a random access reply message to the UE.
  • the access network element After receiving the random access request message sent by the UE, the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random manner.
  • the random access reply message includes radio resource configuration information allocated by the access network element for the UE, in addition to the random access response information.
  • the access network element and the UE establish an RRC connection according to the radio resource configuration information.
  • the UE After the UE receives the random access reply message sent by the access network element, the UE randomly obtains the random access, and also acquires the radio resource configuration information allocated by the access network element for the UE. After the UE is configured according to the radio resource configuration information, the access network element and the UE establish an RRC connection based on the radio resource configuration information.
  • the access network element receives an RRC connection setup complete message sent by the UE.
  • the access network element After the access network element establishes an RRC connection with the UE based on the radio resource configuration information, the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the random access request message received by the access network element carries the request information for requesting to establish an RRC connection, and the access network element allocates the radio resource to the UE according to the request message, and The UE replies to the random access reply message including the radio resource configuration information, so that the UE can be configured according to the radio resource configuration information, establish an RRC connection with the access network element based on the radio resource configuration information, and after the RRC connection is completed, The RRC connection setup complete message is replied to the access network element.
  • the embodiment of the present invention can complete the allocation of the radio resource by the access network element in the random access procedure, and encapsulate the allocated radio resource configuration information in the random access reply message, so that the UE After the completion of the random access procedure, the RRC connection can be established directly with the access network element by using the radio resource configuration information, and the network access procedure can be optimized to solve the problem of excessive control plane overhead, thereby effectively improving the use efficiency of the wireless network resource.
  • the entire network access procedure only involves signaling optimization between the UE and the access network, and no modification to the core network is required.
  • the UE is further connected to the core network through the access network element, with reference to the embodiment shown in FIG.
  • the access network element for the specific process, refer to FIG. 3, another embodiment of the method for accessing a network in the embodiment of the present invention includes:
  • the access network element receives a random access request message sent by the UE.
  • the UE may send a random access request message to the access network element on the resource indicated by the DCI (Downlink Control Information) for the resource to initiate the randomization. Access process.
  • DCI Downlink Control Information
  • the random access request message carries the request information for requesting to establish an RRC connection, in addition to the random access related parameter.
  • the related parameter that carries the random access may include the UE identifier.
  • the UE identifier may be a 40-bit random number, and the network side allocates the TMSI to the UE (Temporary Mobile).
  • the UE identifier may be a TMSI, and the network side allocates a C-RNTI (Cell Radio Network Temporary Identifier) to the UE or the UE remains in the connected state, and the previous allocation is saved.
  • the UE identifier may be a C-RNTI, which is not limited herein.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause, where the RRC connection establishment cause may include: an emergency call, a high priority access, an MT access, an MO signaling, an MO data, and MTC service access, etc., is not limited here. It can be understood that, according to the cause value indication, the access network element can perform corresponding radio resource allocation according to the indicated RRC connection establishment reason.
  • the random access request message may be a random access request message, or may be a message of another name having the same function, which is not limited herein.
  • the access network element returns a random access reply message to the UE.
  • the access network element After receiving the random access request message sent by the UE, the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random manner.
  • the random access reply message includes radio resource configuration information allocated by the access network element for the UE, in addition to the random access response information.
  • the radio resource configuration information may include SRB configuration information, where the SRB configuration information includes logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY. Any one or more of the configuration information; wherein the logical channel configuration information may include a logical channel id, a logical channel priority, and the like. It can be understood that, in order to further reduce the signaling overhead of the air interface transmission, part of the configuration information in the SRB configuration information may be directly written into the protocol, and is not transmitted in the air interface, for example, the media access control layer MAC configuration and the physical layer PHY configuration may be configured by default. .
  • the SRB configuration information may include an SRB indication, and the SRB indication
  • the original SRB is used to indicate the recovery between the UEs, that is, the access network element and the UE can identify the original SRB configuration information according to the SRB indication to establish the original SRB based on the original SRB configuration information.
  • the SRB is configured.
  • the specific expression of the information is not limited.
  • the radio resource configuration information may further include other information related to radio resource allocation, in addition to the SRB configuration information, which is not limited herein.
  • the random access reply message may be a random access response message, or may be a message of another name having the same function, which is not limited herein.
  • the random access procedure of the UE is applicable to the random access process in multiple different types or multiple triggering conditions, which is not limited herein. Can be selected according to actual needs.
  • the allocation of the SRB configuration resource by the access network element may be completed in the random access procedure, and the allocated SRB configuration resource is encapsulated in the random access reply message sent to the UE.
  • the access network element and the UE establish an SRB based on the SRB configuration information.
  • the UE After the UE receives the random access reply message sent by the access NE, the UE randomly obtains the radio resource configuration information including the SRB configuration information allocated by the access network element to the UE. After the UE is configured according to the SRB configuration information, the access network element and the UE establish an SRB based on the SRB configuration information.
  • the access network element receives an RRC connection setup complete message sent by the UE.
  • the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the RRC connection setup complete message may be an RRC Connection Setup Complete message, or may be a message of another name with the same function, which is not limited herein.
  • the embodiment further includes that the UE accesses through the access network element.
  • the RRC connection setup complete message carries service request information, such as a service request Service Request, which is initiated by the NAS layer of the UE.
  • the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message.
  • the initial context establishment process of the UE between the access network element and the core network element may refer to the existing related standards and the provisions in the subsequent related standards.
  • step 305 may be used.
  • the access network element sends the initial context information of the UE to the network element of the core network, where the initial context information of the UE carries the service request information.
  • the access network element receives the UE context setup request information sent by the MME, where the UE context setup request information carries the QoS parameters and the like.
  • the embodiment of the present invention is applicable to multiple UE initial context establishment processes, and the specific implementation manner of the initial context establishment process of the UE is not limited herein.
  • the service request information in the initial context establishment process of the UE may not be carried in the RRC connection setup complete message, but may be generated by the access network element, for example, in the NAS security configuration.
  • the application scenario of the same service is initiated during the change.
  • the RRC reconfiguration process may further be included in the RRC reconfiguration process, where the RRC reconfiguration process may refer to existing related standards and subsequent related standards, for example, RRC reconfiguration.
  • the process may include the following steps 306 and 307, specifically:
  • the access network element sends an RRC connection reconfiguration message to the UE.
  • the RRC connection reconfiguration message carries a DRB establishment parameter, where the DRB configuration information includes any one or more of bearer configuration information, logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY configuration information.
  • the configuration information may include a bearer id, such as an EPS id, an RB id, etc.
  • the logical channel configuration information may include a logical channel id, a logical channel priority, and the like. It can be understood that, in order to further reduce the signaling overhead of the air interface transmission, part of the configuration information in the DRB configuration information may be directly written into the protocol, and is not transmitted in the air interface, for example, the media access control layer MAC configuration and the physical layer PHY configuration may be configured by default. .
  • the access network element and the UE establish a DRB based on the DRB configuration information.
  • the UE After the access network element sends the RRC connection reconfiguration message to the UE, the UE acquires the DRB configuration information that the access network element allocates for the UE. After the UE is configured according to the DRB configuration information, the access network element and the UE establish a DRB based on the DRB configuration information.
  • the embodiment of the present invention is applicable to multiple RRC reconfiguration processes.
  • the RRC reconfiguration process may include the following operations:
  • the radio resource configuration information in step 302 may further include DRB configuration information, and the corresponding RRC reconfiguration process may include:
  • the access network element sends an RRC connection reconfiguration message to the UE;
  • the RRC connection reconfiguration message carries a DRB identifier, and the DRB identifier and the DRB configuration information are associated with each other.
  • the access network element and the UE are pre-established with the foregoing correspondence relationship.
  • the corresponding DRB configuration information is determined by the corresponding relationship.
  • the DRB is established based on the DRB configuration information.
  • the RRC reconfiguration process may further include, after the establishing the DRB, step 308: the access network element receives the indication message that the UE replies;
  • the indication message is used to indicate that the RRC connection reconfiguration is completed.
  • the specific implementation of the indication message may be an RRC connection reconfiguration complete message (such as an RRC Connection Reconfiguration Complete message or a message with another name having the same function) in an RRC message manner, or may be a MAC message.
  • the MAC signaling of the mode is used to indicate the completion of the RRC connection reconfiguration.
  • step 308 is only an optional step in the RRC reconfiguration process. In the actual application process, step 308 may also be omitted by invisibly indicating RRC connection reconfiguration completion, for example, may be set to meet the following conditions. Then, the RRC connection reconfiguration is completed: the timer maintained by the access network element times out, the access network element receives the ACK acknowledgement of the RRC connection reconfiguration message, or the access network element receives the first uplink data.
  • the allocation of the SRB configuration resource and the DRB configuration resource by the access network element may be completed in the random access procedure, and the allocation is completed.
  • the formed SRB configuration resource and the DRB configuration resource are encapsulated in a random access reply message sent to the UE.
  • the security configuration process may further include: the security configuration process may refer to existing related standards and subsequent related standards.
  • the security configuration process may include:
  • the access network element After performing the RRC reconfiguration process, the access network element sends a security mode command message to the UE, where the security mode command message carries the security mode information; after performing the RRC reconfiguration process, the access network element is performed. Receive a security mode complete message replied by the UE.
  • the security mode command message may be a Security Mode Command message, or may be a message with another name of the same function, which is not limited herein; the security mode completion message may be a Security Mode Complete message, or may have the same function. Other name messages are not limited here.
  • the security configuration process may be combined with the RRC reconfiguration process to activate AS security. That is, in this embodiment, the RRC connection reconfiguration message also carries the security mode information, and the indication message also carries the security mode reply information.
  • the embodiment of the present invention is applicable to multiple security configuration processes, and the specific implementation manner of the security configuration process is not limited herein. It should be noted that, in some application scenarios, considering the update mechanism of the AS security configuration (updated once a day), when the access network element and the UE retain the AS context, even if the RRC connection has been removed, the network is accessed again. You can also use the last AS configuration information and omit the security configuration process.
  • the data transmission may be performed between the access network element and the UE.
  • the RRC connection release procedure may further be included, and the RRC connection release procedure is to release the RRC connection.
  • the RRC connection release process may include: the established radio bearer and the release of all the radio resources, so that the UE returns to the IDLE state.
  • the RRC connection release procedure may refer to the existing related standards and the requirements in the subsequent related standards.
  • the RRC connection release process may include When the UE receives the ACK of the last data packet, the UE initiates an RRC connection release procedure.
  • the access network element receives the MAC signaling sent by the UE for requesting to release the RRC connection, and the access network element receives the After the UE Context Release Command message sent by the core network element, the MAC signaling for releasing the RRC connection is sent to the UE.
  • the technical solution provided by the embodiment of the present invention provides a technical solution.
  • the security configuration authentication may be completed in the RRC reconfiguration process to reduce the signaling overhead.
  • the access is The network element replies to the UE in the random access reply message and also carries the DRB configuration information, so that when the access network element sends the RRC connection reconfiguration message to the UE, the RRC connection reconfiguration message does not need to carry the DRB configuration information, but only The DRB identifier needs to be carried to determine the corresponding DRB configuration information according to the corresponding relationship.
  • FIG. 1 Another embodiment of the method for accessing a network in an embodiment of the invention includes:
  • the access network element receives a random access request message sent by the UE.
  • step 401 in this embodiment is different from the step 301 in the embodiment shown in FIG. 3 in that, in this embodiment, the random access request message further carries NAS security configuration information.
  • the NAS security configuration information may include a NAS indication, where the NAS indication is used to indicate whether the NAS security configuration changes. In other application scenarios, it may be determined by the access network element whether the NAS security configuration is changed according to the NAS security configuration information, which is not limited herein.
  • the access network element queries the local service request information or generates service request information according to the random access request message.
  • the access network element queries the access network element for the service request information saved by the UE according to the UE identifier in the random access request message, or the access network element according to the UE in the random access request message.
  • the identification and request information generates service request information.
  • the service request information may be related parameter information corresponding to the service request, or may be directly a service request Service Request.
  • the access network element establishes a connection with the core network element based on the service request information.
  • the access network element sends the service request information (the service request Service Request or the related parameter information corresponding to the service request) that is queried or generated to the core network element, and is based on the service request information and the core network.
  • the network element establishes a connection.
  • Step 403 is a process for establishing an initial context of the UE between the access network element and the core network element, for example, In this embodiment, step 403 may include:
  • the access network element sends the initial context information of the UE to the network element of the core network, where the initial context information of the UE carries the service request information.
  • the access network element receives the UE context setup request information sent by the MME, where the UE context setup request information carries the QoS parameters and the like.
  • step 305 in the embodiment shown in FIG. 3, which is not described in this embodiment.
  • the access network element returns a random access reply message to the UE.
  • the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random access reply message. Therefore, in this embodiment, the random access reply message includes radio resource configuration information allocated by the access network element for the UE, in addition to the random access response information.
  • the radio resource configuration information may include SRB configuration information and DRB configuration information.
  • SRB configuration information refer to the detailed description in step 302 in the embodiment shown in FIG. 3, and details are not described herein again.
  • DRB configuration information refer to the detailed description in step 306 in the embodiment shown in FIG. No longer.
  • the radio resource configuration information may further include other information related to radio resource allocation, in addition to the SRB configuration information and the DRB configuration information, which is not limited herein.
  • the random access reply message may be a random access response message, or may be a message of another name having the same function, which is not limited herein.
  • the random access procedure of the UE ends.
  • the embodiment of the present invention can be applied to multiple random access processes of different types or multiple triggering conditions, which is not limited herein. , can be selected according to actual needs.
  • the allocation of the SRB configuration resource and the DRB configuration resource by the access network element may be completed in the random access procedure, and the allocated SRB configuration resource and the DRB configuration resource are encapsulated in a random connection sent to the UE. In the reply message.
  • the access network element and the UE establish an SRB based on the SRB configuration information.
  • the UE After the UE receives the random access reply message sent by the access NE, the UE randomly obtains the radio resource configuration information including the SRB configuration information allocated by the access network element to the UE. After the UE is configured according to the SRB configuration information, the access network element and the UE establish an SRB based on the SRB configuration information.
  • the access network element and the UE establish a DRB based on the DRB configuration information.
  • the UE After the access network element and the UE establish the SRB based on the SRB configuration information, the UE performs configuration according to the DRB configuration information, and establishes a DRB with the access network element based on the DRB configuration information, and the data between the access network element and the UE can be performed. Transmission, the UE is quickly connected to the network.
  • the access network element receives an RRC connection setup complete message sent by the UE.
  • the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the RRC connection setup complete message may be an RRC Connection Setup Complete message, or may be a message of another name with the same function, which is not limited herein.
  • the technical solution provided by the embodiment of the present invention provides a process for accessing a UE to a core network element and establishing a DRB through an access network element based on different signaling procedures, and is applicable.
  • the application scenario of the same service is initiated during the period when the NAS security configuration is unchanged.
  • the technical solution provided by the embodiment of the present invention can quickly access the UE to the network.
  • FIG. 2 to FIG. 4 The embodiment shown in FIG. 2 to FIG. 4 is described from the perspective of the access network element.
  • the method for accessing the network in the embodiment of the present invention is described in detail below from the perspective of the UE. For details, refer to FIG. 5, which is implemented by the present invention.
  • Another embodiment of a method for accessing a network in an example includes:
  • the UE sends a random access request message to the access network element.
  • the UE may send a random access request message to the access network element on the resource indicated by the DCI (Downlink Control Information) for the resource to initiate the randomization. Access process.
  • the random access request message carries the request information for requesting to establish an RRC connection, in addition to the random access related parameter.
  • the related parameters that carry the random access may refer to the existing related standards and the provisions in the subsequent related standards, and are not described in this embodiment.
  • the UE receives a random access reply message that is accessed by the access network element.
  • the access network element After receiving the random access request message sent by the UE, the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random manner. Accessing the reply message, therefore, in this embodiment, random access back
  • the complex message includes radio resource configuration information allocated by the access network element for the UE.
  • the UE and the access network element establish an RRC connection according to the radio resource configuration information.
  • the UE After the UE receives the random access reply message sent by the access network element, the UE randomly obtains the random access, and also acquires the radio resource configuration information allocated by the access network element for the UE. After the UE is configured according to the radio resource configuration information, the UE establishes an RRC connection with the access network element based on the radio resource configuration information.
  • the UE sends an RRC connection setup complete message to the access network element.
  • the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the random access request message sent by the UE to the access network element carries the request information for requesting to establish an RRC connection, so that the access network element can allocate the radio resource to the UE according to the request message.
  • the random access reply message including the radio resource configuration information the UE may be configured according to the radio resource configuration information, establish an RRC connection with the access network element based on the radio resource configuration information, and complete the RRC connection.
  • the backward access network element replies with an RRC connection setup complete message.
  • the embodiment of the present invention can complete the allocation of the radio resource by the access network element in the random access procedure, and encapsulate the allocated radio resource configuration information in the random access reply message, so that the UE After the completion of the random access procedure, the RRC connection can be established directly with the access network element by using the radio resource configuration information, and the network access procedure can be optimized to solve the problem of excessive control plane overhead, thereby effectively improving the use efficiency of the wireless network resource.
  • the entire network access procedure only involves signaling optimization between the UE and the access network, and no modification to the core network is required.
  • FIG. 6 another embodiment of the method for accessing the network in the embodiment of the present invention includes:
  • the UE sends a random access request message to the access network element.
  • the UE may send a random access request message to the access network element on the resource indicated by the DCI (Downlink Control Information) for the resource to initiate the randomization. Access process.
  • DCI Downlink Control Information
  • the random access request message carries the request information for requesting to establish an RRC connection, in addition to the random access related parameter.
  • carrying The relevant parameters of the random access may include a UE identifier.
  • the UE identifier may be a 40-bit random number, and the network side allocates a TMSI (Temporary Mobile Subscriber Identity) to the UE.
  • the UE identifier may be a TMSI.
  • the UE identifier may be a C-RNTI, which is not limited herein.
  • a person skilled in the art may refer to the existing related standards and the requirements in the subsequent related standards, and details are not described in this embodiment.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause, where the RRC connection establishment cause may include: an emergency call, a high priority access, an MT access, an MO signaling, an MO data, and MTC service access, etc., is not limited here. It can be understood that, according to the cause value indication, the access network element can perform corresponding radio resource allocation according to the indicated RRC connection establishment reason.
  • the random access request message may be a random access request message, or may be a message of another name having the same function, which is not limited herein.
  • the UE receives a random access reply message that is accessed by the access network element.
  • the access network element After receiving the random access request message sent by the UE, the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random manner.
  • the random access reply message includes radio resource configuration information allocated by the access network element for the UE, in addition to the random access response information.
  • the radio resource configuration information may include SRB configuration information, where the SRB configuration information includes any one or more of logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY configuration information;
  • the channel configuration information may include a logical channel id, a logical channel priority, and the like. It can be understood that, in order to further reduce the signaling overhead of the air interface transmission, part of the configuration information in the SRB configuration information may be directly written into the protocol, and is not transmitted in the air interface, for example, the media access control layer MAC configuration and the physical layer PHY configuration may be configured by default. .
  • the SRB configuration information may include an SRB indication, and the SRB indication Used to indicate the original SRB between the UEs to recover, that is, the access network element and the UE can identify the original according to the SRB indication.
  • the SRB configuration information is used to establish the original SRB based on the original SRB configuration information.
  • the specific expression of the SRB configuration information is not limited.
  • the radio resource configuration information may further include other information related to radio resource allocation, in addition to the SRB configuration information, which is not limited herein.
  • the random access reply message may be a random access response message, or may be a message of another name having the same function, which is not limited herein.
  • the steps 601 and 602 are the random access procedure of the UE, and the embodiment of the present invention can be applied to multiple random access procedures of different types or multiple triggering conditions, which is not limited herein. Can be selected according to actual needs.
  • the allocation of the SRB configuration resource by the access network element may be completed in the random access procedure, and the allocated SRB configuration resource is encapsulated in the random access reply message sent to the UE.
  • the UE and the access network element establish an SRB based on the SRB configuration information.
  • the UE After the UE receives the random access reply message sent by the access NE, the UE randomly obtains the radio resource configuration information including the SRB configuration information allocated by the access network element to the UE. After the UE is configured according to the SRB configuration information, the access network element and the UE establish an SRB based on the SRB configuration information.
  • the UE sends an RRC connection setup complete message to the access network element.
  • the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the RRC connection setup complete message may be an RRC Connection Setup Complete message, or may be a message of another name with the same function, which is not limited herein.
  • the embodiment further includes a UE initial context establishment process in which the UE accesses the core network element by using the access network element.
  • the RRC connection setup complete message carries service request information, such as a service request Service Request, which is initiated by the NAS layer of the UE.
  • the UE initial context establishment procedure is step 605: the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message.
  • the initial context establishment process of the UE between the access network element and the core network element may refer to the existing related standards and the provisions in the subsequent related standards.
  • step 605 may be used. Includes:
  • the access network element sends the initial context information of the UE to the network element of the core network, where the initial context information of the UE carries the service request information.
  • the access network element receives the UE context setup request information sent by the MME, where the UE context setup request information carries the QoS parameters and the like.
  • the embodiment of the present invention is applicable to multiple UE initial context establishment processes, and the specific implementation manner of the initial context establishment process of the UE is not limited herein.
  • the service request information in the initial context establishment process of the UE may not be carried in the RRC connection setup complete message, but may be generated by the access network element, for example, in the NAS security configuration.
  • the application scenario of the same service is initiated during the change.
  • the RRC reconfiguration process may further be included in the RRC reconfiguration process, where the RRC reconfiguration process may refer to existing related standards and subsequent related standards, for example, RRC reconfiguration.
  • the process may include the following steps 606 and 607, specifically:
  • the UE receives an RRC connection reconfiguration message sent by the access network element.
  • step 606 is sent after the access network element establishes a connection with the core network element based on the service request information in the RRC connection setup complete message.
  • the RRC connection reconfiguration message carries a DRB establishment parameter, where the DRB configuration information includes any one or more of bearer configuration information, logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY configuration information.
  • the configuration information may include a bearer id, such as an EPS id, an RB id, etc.
  • the logical channel configuration information may include a logical channel id, a logical channel priority, and the like. It can be understood that, in order to further reduce the signaling overhead of the air interface transmission, part of the configuration information in the DRB configuration information may be directly written into the protocol, and is not transmitted in the air interface, for example, the media access control layer MAC configuration and the physical layer PHY configuration may be configured by default. .
  • the UE and the access network element establish a DRB based on the DRB configuration information.
  • the UE After the access network element sends the RRC connection reconfiguration message to the UE, the UE acquires the DRB configuration information that the access network element allocates for the UE. After the UE is configured according to the DRB configuration information, the access network element and the UE establish a DRB based on the DRB configuration information.
  • the embodiment of the present invention is applicable to multiple RRC reconfiguration processes.
  • the RRC reconfiguration process is used. Can include the following operations:
  • the radio resource configuration information in step 602 may further include DRB configuration information, and the corresponding RRC reconfiguration process may include:
  • the RRC connection reconfiguration message carries a DRB identifier, and the DRB identifier and the DRB configuration information are associated with each other.
  • the UE and the access network element are pre-established with the foregoing correspondence relationship.
  • the DRB identifier is received, the corresponding DRB configuration information is determined by the corresponding relationship.
  • the UE and the access network element establish a DRB based on the DRB configuration information corresponding to the DRB identifier;
  • the DRB is established based on the DRB configuration information.
  • the RRC reconfiguration process may further include the step 608 after the DRB is established: the UE returns an indication message to the access network element.
  • the indication message is used to indicate that the RRC connection reconfiguration is completed.
  • the specific implementation of the indication message may be an RRC connection reconfiguration complete message (such as an RRC Connection Reconfiguration Complete message or a message with another name having the same function) in an RRC message manner, or may be a MAC message.
  • the MAC signaling of the mode is used to indicate the completion of the RRC connection reconfiguration.
  • step 608 is only an optional step in the RRC reconfiguration process. In the actual application process, step 608 may also be omitted by implicitly indicating RRC connection reconfiguration completion, for example, it may be set to meet the following conditions.
  • the RRC connection reconfiguration is completed: the timer maintained by the access NE is timed out, the access network element receives the ACK acknowledgement of the RRC connection reconfiguration message, or the access network element receives the first uplink data.
  • the allocation of the SRB configuration resource and the DRB configuration resource by the access network element may be completed in the random access procedure, and the SRB configuration resource and the completed SRB configuration resource may be allocated.
  • the DRB configuration resource is encapsulated in the random access reply message sent to the UE. Therefore, the UE can obtain the SRB configuration resource and the DRB configuration resource allocated by the access network element for the UE in the random access procedure.
  • the security configuration process may further include: the security configuration process may refer to existing related standards and subsequent related standards.
  • the security configuration process may include:
  • the UE After performing the RRC reconfiguration process, the UE receives the security mode command message sent by the access network element, where the security mode command message carries the security mode information; after performing the RRC reconfiguration process, the UE forwards The incoming network element replies to the security mode completion message.
  • the security mode command message may be a Security Mode Command message, or may be a message with another name of the same function, which is not limited herein; the security mode completion message may be a Security Mode Complete message, or may have the same function. Other name messages are not limited here.
  • the security configuration process may be combined with the RRC reconfiguration process to activate AS security. That is, in this embodiment, the RRC connection reconfiguration message also carries the security mode information, and the indication message also carries the security mode reply information.
  • the embodiment of the present invention is applicable to multiple security configuration processes, and the specific implementation manner of the security configuration process is not limited herein. It should be noted that, in some application scenarios, considering the update mechanism of the AS security configuration (updated once a day), when the UE and the access network element retain the AS context, even if the RRC connection has been removed, the network is accessed again. You can also use the last AS configuration information and omit the security configuration process.
  • the RRC connection release procedure may further be included, and the RRC connection release procedure is to release the RRC connection.
  • the RRC connection release process may include: the established radio bearer and the release of all the radio resources, so that the UE returns to the IDLE state.
  • the RRC connection release procedure may refer to the existing related standards and the requirements in the subsequent related standards.
  • the RRC connection release process may include When the UE receives the ACK of the last data packet, the UE initiates an RRC connection release procedure.
  • the UE sends a MAC signaling for requesting to release the RRC connection to the access network element, and the access network element receives the core.
  • the UE receives the MAC signaling sent by the access network element to release the RRC connection.
  • the technical solution provided by the embodiment of the present invention provides a process for a UE to access a core network element and establish a DRB by using an access network element.
  • the security configuration authentication may be completed in the RRC reconfiguration process to reduce the signaling overhead.
  • the UE receives The random access reply message replied by the access network element also carries the DRB configuration information, so that the UE is connected.
  • the RRC connection reconfiguration message sent by the access network element does not need to carry the DRB configuration information in the RRC connection reconfiguration message, but only needs to carry the DRB identifier to determine the corresponding DRB configuration information according to the corresponding relationship.
  • FIG. 1 Another embodiment of the method for accessing a network in an embodiment of the invention includes:
  • the UE sends a random access request message to the access network element.
  • step 701 in this embodiment is different from the step 601 in the embodiment shown in FIG. 6 in that, in this embodiment, the random access request message further carries NAS security configuration information.
  • the NAS security configuration information may include a NAS indication, where the NAS indication is used to indicate whether the NAS security configuration changes. In other application scenarios, it may be determined by the access network element whether the NAS security configuration is changed according to the NAS security configuration information, which is not limited herein.
  • the access network element queries the local service request information or generates service request information according to the random access request message;
  • the access network element queries the access network element for the service request information saved by the UE according to the UE identifier in the random access request message, or the access network element according to the UE in the random access request message.
  • the identification and request information generates service request information.
  • the service request information may be related parameter information corresponding to the service request, or may be directly a service request Service Request.
  • the service request information in the initial context establishment process of the UE is not carried in the RRC connection setup complete message, but is queried or generated by the access network element in the foregoing manner.
  • the access network element establishes a connection with the core network element based on the service request information obtained by the query or the generation manner, so as to complete the initial context establishment process of the UE between the access network element and the core network element.
  • the initial context establishment process of the UE between the access network element and the core network element may be implemented by referring to existing related standards and subsequent related standards, for example, in In this embodiment, the UE initial context establishment process may include step 702:
  • the access network element sends the initial context information of the UE to the core network element, and the initial context information of the UE is carried.
  • business request information
  • the access network element receives the UE context setup request information sent by the MME, where the UE context setup request information carries the QoS parameters and the like.
  • step 605 in the embodiment shown in FIG. 6, which is not described in this embodiment.
  • the UE receives a random access reply message that is accessed by the access network element.
  • the random access reply message is that the access network element queries the local service request information or generates the service request information according to the random access request message, and based on the service request information and the core network.
  • the network element sends after establishing a connection;
  • the access network element responds to the random access request message and allocates a radio resource to the UE according to the request information, and encapsulates the radio resource configuration information corresponding to the allocated information in a random access reply message. Therefore, in this embodiment, the random access reply message includes radio resource configuration information allocated by the access network element for the UE, in addition to the random access response information.
  • the radio resource configuration information may include SRB configuration information and DRB configuration information.
  • SRB configuration information refer to the detailed description in the step 602 in the embodiment shown in FIG. 6 , and details are not described herein again.
  • DRB configuration information refer to the detailed description in step 606 in the embodiment shown in FIG. 3 . No longer.
  • the radio resource configuration information may further include other information related to radio resource allocation, in addition to the SRB configuration information and the DRB configuration information, which is not limited herein.
  • the random access reply message may be a random access response message, or may be a message of another name having the same function, which is not limited herein.
  • the random access procedure of the UE ends.
  • the embodiment of the present invention can be applied to multiple random access processes of different types or multiple triggering conditions, which is not limited herein. , can be selected according to actual needs.
  • the allocation of the SRB configuration resource and the DRB configuration resource by the access network element may be completed in the random access procedure, and the allocated SRB configuration resource and the DRB configuration resource are encapsulated in a random connection sent to the UE. In the reply message.
  • the UE and the access network element establish an SRB based on the SRB configuration information.
  • the UE After the UE receives the random access reply message sent by the access network element, the UE randomly accesses the random access. At the same time, the radio resource configuration information including the SRB configuration information allocated by the access network element to the UE is also obtained. After the UE is configured according to the SRB configuration information, the UE and the access network element establish an SRB based on the SRB configuration information.
  • the UE and the access network element establish a DRB based on the DRB configuration information.
  • the UE After the UE establishes an SRB with the access network element based on the SRB configuration information, the UE performs configuration according to the DRB configuration information, and establishes a DRB with the access network element based on the DRB configuration information, and the data can be performed between the UE and the access network element. Transmission, the UE is quickly connected to the network.
  • the UE sends an RRC connection setup complete message to the access network element.
  • the UE accesses the network, and sends an RRC connection setup complete message to the access network element.
  • the RRC connection setup complete message may be an RRC Connection Setup Complete message, or may be a message of another name with the same function, which is not limited herein.
  • the technical solution provided by the embodiment of the present invention provides a process for accessing a UE to a core network element and establishing a DRB through an access network element based on different signaling procedures, and is applicable.
  • the application scenario of the same service is initiated during the period when the NAS security configuration is unchanged.
  • the technical solution provided by the embodiment of the present invention can quickly access the UE to the network.
  • an embodiment of the access network element in the embodiment of the present invention includes:
  • the access network element in the embodiment of the present invention may implement the process of the embodiment shown in Figure 2, where the access network element includes:
  • the receiving unit 801 is configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection;
  • the sending unit 802 is configured to reply, according to the random access request message received by the receiving unit 801, a random access reply message to the UE, where the random access reply message includes the access network element as the UE Allocated radio resource configuration information;
  • the processing unit 803 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message sent by the UE according to the sending unit 802.
  • the receiving unit 801 is further configured to receive an RRC connection setup complete message sent by the UE.
  • the receiving unit 801 receives a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection; the sending unit 802 replies to the UE with a random access reply message, the random access The reply message includes radio resource configuration information allocated by the access network element to the UE; the processing unit 803 establishes an RRC connection with the UE based on the radio resource configuration information; and the receiving unit 801 further receives the RRC connection sent by the UE.
  • the RRC Connection Setup Complete message is a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection; the sending unit 802 replies to the UE with a random access reply message, the random access The reply message includes radio resource configuration information allocated by the access network element to the UE; the processing unit 803 establishes an RRC connection with the UE based on the radio resource configuration information; and the receiving unit 801 further receives the RRC connection sent by the UE.
  • the random access request message received by the access network element carries the request information for requesting to establish an RRC connection, and the access network element allocates the radio resource to the UE according to the request message, and The UE replies to the random access reply message including the radio resource configuration information, so that the UE can be configured according to the radio resource configuration information, establish an RRC connection with the access network element based on the radio resource configuration information, and after the RRC connection is completed, The RRC connection setup complete message is replied to the access network element.
  • the embodiment of the present invention can complete the allocation of the radio resource by the access network element in the random access procedure, and encapsulate the allocated radio resource configuration information in the random access reply message, so that the UE After the completion of the random access procedure, the RRC connection can be established directly with the access network element by using the radio resource configuration information, and the network access procedure can be optimized to solve the problem of excessive control plane overhead, thereby effectively improving the use efficiency of the wireless network resource.
  • the entire network access procedure only involves signaling optimization between the UE and the access network, and no modification to the core network is required.
  • FIG. 9 another embodiment of the access network element in the embodiment of the present invention includes:
  • the access network element in the embodiment of the present invention may implement the process of the embodiment shown in Figure 3.
  • the access network element includes:
  • the receiving unit 901 is configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection;
  • the sending unit 902 is configured to reply, according to the random access request message received by the receiving unit 901, a random access reply message to the UE, where the random access reply message includes the access network element as the UE Allocated radio resource configuration information;
  • the processing unit 903 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message sent by the UE according to the sending unit 902.
  • the receiving unit 901 is further configured to receive an RRC connection setup complete message sent by the UE.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information
  • the processing unit 903 is specifically configured to establish an SRB with the UE based on the SRB configuration information.
  • the SRB configuration information includes any one or more of logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information
  • the processing unit 903 is further configured to: after the receiving unit receives the RRC connection setup complete message sent by the UE, based on the service request information and the core network in the RRC connection setup complete message received by the receiving unit Yuan establishes a connection.
  • the sending unit 902 is further configured to: after the processing unit establishes a connection with the core network element based on the service request information in the RRC connection setup complete message received by the receiving unit, send the RRC connection reconfiguration message to the UE.
  • the RRC connection reconfiguration message carries data radio bearer DRB configuration information
  • the processing unit 903 is further configured to establish a DRB with the DRB configuration information in the RRC connection reconfiguration message sent by the UE according to the sending unit.
  • the radio resource configuration information further includes DRB configuration information
  • the sending unit 902 is further configured to: after the processing unit establishes a connection with the core network element based on the service request information in the RRC connection setup complete message received by the receiving unit, the RRC connection reconfiguration sent to the UE a message that the RRC connection reconfiguration message carries a DRB identifier, and a correspondence between the DRB identifier and the DRB configuration information is established;
  • the processing unit 903 is further configured to establish, by the UE, the DRB according to the DRB configuration information corresponding to the DRB identifier in the RRC connection reconfiguration message sent by the sending unit.
  • the receiving unit 901 is further configured to: after the processing unit and the UE establish a DRB based on the DRB configuration information, receive an indication message that is returned by the UE, where the indication message is used to indicate that the RRC connection reconfiguration is completed;
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes any one or more of bearer configuration information, logical channel configuration, MAC configuration information, and PHY configuration information.
  • the sending unit 902 is further configured to: before the sending unit sends an RRC connection reconfiguration message to the UE, the processing unit is based on the service request information and the core network in the RRC connection setup complete message received by the receiving unit. After the network element establishes the connection, sending a security mode instruction message to the UE, where the security mode instruction message carries security mode information;
  • the receiving unit 901 is further configured to: after the receiving unit receives the indication message replied by the UE, receive a security mode complete message replied by the UE.
  • the RRC connection reconfiguration message further carries security mode information; the indication message further carries security mode reply information.
  • the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate Recovering the previous original SRB by the UE;
  • the processing unit 903 is specifically configured to: restore, by the UE, the original SRB according to the SRB indication in the random access reply message sent by the sending unit.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause.
  • the UE may access the core network based on different signaling flows, and another description may be further described below.
  • the access network element that performs the process of the UE accessing the core network element refer to FIG. 10, another embodiment of the method for accessing the network in the embodiment of the present invention includes:
  • the access network element in the embodiment of the present invention may implement the process of the embodiment shown in FIG. 4, where the access network element includes:
  • the receiving unit 1001 is configured to receive a random access request message sent by the UE, where the random access request message carries request information for requesting to establish an RRC connection;
  • the sending unit 1002 is configured to reply, according to the random access request message received by the receiving unit 1001, a random access reply message to the UE, where the random access reply message includes the access network element as the UE Allocated radio resource configuration information;
  • the processing unit 1003 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message sent by the UE according to the sending unit 1002.
  • the receiving unit 1001 is further configured to receive an RRC connection setup complete message sent by the UE.
  • the random access request message further carries NAS security configuration information
  • the processing unit 1003 is further configured to: when the NAS security configuration is not changed, query the local service request information or generate service request information according to the random access request message received by the receiving unit;
  • the processing unit 1003 is further configured to establish a connection with the core network element based on the service request information that is queried or generated by the processing unit;
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the processing unit 1003 is specifically configured to establish an SRB with the UE based on the SRB configuration information and establish a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used to indicate whether the NAS security configuration changes.
  • the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate Recovering the previous original SRB by the UE;
  • the processing unit 1003 is specifically configured to restore the original SRB with the SRB in the random access reply message sent by the UE according to the sending unit.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause.
  • the access network element in the embodiment of the present invention is described above from the perspective of a modular functional entity. In the technical solution of the present invention, the access network element in the embodiment of the present invention may also be described from the perspective of hardware processing.
  • the receiving unit in the embodiment shown in FIG. 8 to FIG. 10 may correspond to the receiver of the access network element, or may correspond to the transceiver of the access network element, and the processing unit may correspond to the processor of the access network element, where the processing is performed.
  • the device may be a CPU, or an ASIC, or one or more integrated circuits that implement the embodiments of the present invention.
  • the sending unit may correspond to a transmitter of the access network element, or may correspond to a transceiver of the access network element. For details, please refer to FIG.
  • the access network element may further include a memory for storing the instruction code, and the processor 1103 calls the instruction code of the memory to control the receiver 1101 and the transmitter 1102 in the embodiment of the present invention to perform corresponding operations.
  • the access network element according to the embodiment of the present invention may have more or less components than those shown in FIG. 11, may combine two or more components, or may have different component configurations or settings, and each component may Hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • an embodiment of the UE in the embodiment of the present invention includes:
  • the UE in the embodiment of the present invention may implement the process of the embodiment shown in Figure 5, where the UE includes:
  • the sending unit 1201 is configured to send a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection;
  • the receiving unit 1202 is configured to receive a random access reply message that is sent by the access network element according to the random access request message sent by the sending unit 1201, where the random access reply message includes the access network element Radio resource configuration information allocated for the UE;
  • the processing unit 1203 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message that is received by the access network element according to the receiving unit 1202.
  • the sending unit 1201 is further configured to send an RRC connection setup complete message to the access network element.
  • the sending unit 1201 is configured to send a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection, and the receiving unit 1202 receives the access network element according to the sending a random access reply message replied by the random access request message sent by the unit 1201, where the random access reply message includes radio resource configuration information allocated by the access network element to the UE; the processing unit 1203 and the The access network element establishes an RRC connection based on the radio resource configuration information in the random access reply message received by the receiving unit, and the sending unit 1201 further sends an RRC connection setup complete message to the access network element.
  • the random access request message sent by the UE to the access network element carries the request information for requesting to establish an RRC connection, so that the access network element can be configured according to the request.
  • the message allocates a radio resource to the UE, and returns a random access reply message including the radio resource configuration information to the UE.
  • the UE may perform configuration according to the radio resource configuration information, and establish an RRC with the access network element based on the radio resource configuration information. Connect, and reply to the access NE with an RRC Connection Setup Complete message after the RRC connection is completed.
  • the embodiment of the present invention can complete the allocation of the radio resource by the access network element in the random access procedure, and encapsulate the allocated radio resource configuration information in the random access reply message, so that the UE After the completion of the random access procedure, the RRC connection can be established directly with the access network element by using the radio resource configuration information, and the network access procedure can be optimized to solve the problem of excessive control plane overhead, thereby effectively improving the use efficiency of the wireless network resource.
  • the entire network access procedure only involves signaling optimization between the UE and the access network, and no modification to the core network is required.
  • FIG. 13 another embodiment of the UE in the embodiment of the present invention includes:
  • the UE in the embodiment of the present invention may implement the process of the embodiment shown in Figure 6, where the UE includes:
  • the sending unit 1301 is configured to send a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection;
  • the receiving unit 1302 is configured to receive a random access reply message that is sent by the access network element according to the random access request message sent by the sending unit 1301, where the random access reply message includes the access network element Radio resource configuration information allocated for the UE;
  • the processing unit 1303 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message that is received by the access network element according to the receiving unit 1302.
  • the sending unit 1301 is further configured to send an RRC connection setup complete message to the access network element.
  • the radio resource configuration information includes signaling radio bearer SRB configuration information
  • the processing unit 1303 is specifically configured to establish an SRB with the access network element based on the SRB configuration information.
  • the SRB configuration information includes any one or more of logical channel configuration information, media access control layer MAC configuration information, and physical layer PHY configuration information.
  • the RRC connection setup complete message carries service request information
  • the receiving unit 1302 is further configured to: after the sending unit 1301 sends an RRC connection setup complete message to the access network element, receive an RRC connection reconfiguration message sent by the access network element, where The RRC connection reconfiguration message carries data radio bearer DRB configuration information; the RRC connection reconfiguration message is based on the service request information and the core network in the RRC connection setup complete message sent by the access network element by the sending unit The element is sent after the connection is established;
  • the processing unit 1303 is further configured to establish, by the access network element, the DRB according to the DRB configuration information in the RRC connection reconfiguration message received by the receiving unit.
  • the radio resource configuration information further includes DRB configuration information;
  • the RRC connection setup complete message carries service request information;
  • the receiving unit 1302 is further configured to: after the sending unit 1301 sends an RRC connection setup complete message to the access network element, receive an RRC connection reconfiguration message sent by the access network element, where the RRC connection is heavy
  • the matching message carries a DRB identifier, and the DRB identifier is associated with the DRB configuration information; the RRC connection reconfiguration message is in the RRC connection setup complete message sent by the access network element based on the sending unit.
  • the service request information is sent after establishing a connection with the core network element;
  • the processing unit 1303 is further configured to establish, by the access network element, the DRB according to the DRB configuration information corresponding to the DRB identifier in the RRC connection reconfiguration message received by the receiving unit 1302.
  • the sending unit 1301 is further configured to: after the processing unit 1303 and the access network element establish a DRB based on the DRB configuration information, return an indication message to the access network element, where the indication message is used to indicate RRC connection reconfiguration is completed;
  • the indication message includes an RRC Connection Reconfiguration Complete message or a MAC signaling for indicating RRC connection reconfiguration completion.
  • the DRB configuration information includes any one or more of bearer configuration information, logical channel configuration, MAC configuration information, and PHY configuration information.
  • the receiving unit 1302 is further configured to: before the receiving unit 1302 receives the RRC connection reconfiguration message sent by the access network element, the access network element is based on the RRC connection setup complete message sent by the sending unit 1301. After establishing the connection between the service request information and the core network element, receiving a security mode command message sent by the access network element, where the security mode command message carries security mode information;
  • the sending unit 1301 is further configured to: after the sending unit 1301 returns an indication message to the access network element, return a security mode complete message to the access network element.
  • the RRC connection reconfiguration message further carries security mode information; the indication message further carries security mode reply information.
  • the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate Recovering the previous original SRB by the UE;
  • the processing unit 1303 is specifically configured to restore the original SRB based on the SRB indication with the access network element.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause.
  • the UE may access the core network based on different signaling flows, and another description may be further described below.
  • the UE that performs the process of the UE accessing the core network element, please refer to FIG. 14 , another embodiment of the UE in the embodiment of the present invention includes:
  • the UE in the embodiment of the present invention may implement the process of the embodiment shown in Figure 7, where the UE includes:
  • the sending unit 1401 is configured to send a random access request message to the access network element, where the random access request message carries request information for requesting to establish an RRC connection;
  • the receiving unit 1402 is configured to receive a random access reply message that is sent by the access network element according to the random access request message sent by the sending unit 1401, where the random access reply message includes the access network element Radio resource configuration information allocated for the UE;
  • the processing unit 1403 is configured to establish an RRC connection with the radio resource configuration information in the random access reply message that is received by the access network element according to the receiving unit 1402.
  • the sending unit 1401 is further configured to send an RRC connection setup complete message to the access network element.
  • the random access request message further carries NAS security configuration information
  • the random access reply message is used by the access network element to query the local service request information or the generated service request information according to the random access request message, and establish a connection with the core network element based on the service request information. After sending;
  • the radio resource configuration information includes SRB configuration information and DRB configuration information
  • the processing unit 1403 is specifically configured to establish an SRB with the access network element based on the SRB configuration information and establish a DRB based on the DRB configuration information.
  • the NAS security configuration information includes a NAS indication, where the NAS indication is used to indicate whether the NAS security configuration changes.
  • the SRB configuration information includes an SRB indication, and the SRB indication is used to indicate Recovering the previous original SRB by the UE;
  • the processing unit 1403 is specifically configured to restore the original SRB based on the SRB indication with the access network element.
  • the request information includes a cause value indication for indicating an RRC connection establishment cause.
  • the UE in the embodiment of the present invention is described above from the perspective of a modular functional entity.
  • the UE in the embodiment of the present invention may also be described from the perspective of hardware processing, and then FIG. 12 to FIG. 14
  • the receiving unit in the embodiment may correspond to the receiver of the UE, and may also correspond to the transceiver of the UE, and the processing unit may correspond to the processor of the UE, where the processor may be a CPU, or an ASIC, or implement the present invention.
  • the transmitting unit may correspond to a transmitter of the UE, or may correspond to a transceiver of the UE.
  • the UE may further include a memory for storing the instruction code, and the processor 1503 calls the instruction code of the memory to control the receiver 1501 and the transmitter 1502 in the embodiment of the present invention to perform corresponding operations.
  • the access network element according to the embodiment of the present invention may have more or less components than those shown in FIG. 15, may combine two or more components, or may have different component configurations or settings, and each component may Hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, 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 purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种接入网络的方法以及相关装置，可以在不改动核心网的情况下优化网络接入流程，提高无线网络资源的使用效率。所述方法包括：接入网元接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；所述接入网元向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接；所述接入网元接收所述UE发送的RRC连接建立完成消息。

Description

一种接入网络的方法以及相关装置 技术领域
本发明涉及通信技术领域，尤其涉及一种接入网络的方法以及相关装置。
背景技术
现有的通信系统中，UE(User Equipment，用户设备)的网络接入方案需要在触发随机接入流程后，在UE和接入网之间建立RRC(Radio Resource Control，无线资源控制)连接，从而将UE从空闲态变迁到可数据传输状态，其中RRC连接的建立由UE向接入网发送RRC连接请求消息发起，在接入网接收到RRC连接请求消息后开始执行分配无线资源、建立信令面承载、建立用户面承载、传输数据、释放承载等步骤，整个网络接入过程需要执行一整套复杂的信令流程。
为了提高无线网络资源的使用效率，运营商也提出了一些网络接入优化方案，特别是针对一些具备海量终端的小数据包传输业务，例如MTC(Machine Type Communications，机器类型通信)业务，传输的仅仅为少量的数据，却需占用大量的无线空口资源，导致控制面开销过大、传输效率较低，甚至导致网络产生信令拥塞。
然而，上述现有的网络接入优化方案通常需要同时对接入网和核心网网元进行改动。
发明内容
本发明实施例提供了一种接入网络的方法以及相关装置，可以在不改动核心网的情况下优化网络接入流程，提高无线网络资源的使用效率。
本发明实施例的第一方面提供一种接入网元，所述接入网元包括：
接收单元，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
发送单元，用于根据所述接收单元接收的所述随机接入请求消息向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述 UE分配的无线资源配置信息；
处理单元，用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述接收单元，还用于接收所述UE发送的RRC连接建立完成消息。
结合本发明实施例的第一方面，在本发明实施例的第一方面的第一种实现方式中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述处理单元，具体用于与所述UE基于所述SRB配置信息建立SRB。
结合本发明实施例的第一方面的第一种实现方式，在本发明实施例的第一方面的第二种实现方式中，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
结合本发明实施例的第一方面的第一种或第二种实现方式，在本发明实施例的第一方面的第三种实现方式中，所述RRC连接建立完成消息携带业务请求信息；
所述处理单元，还用于在所述接收单元接收所述UE发送的RRC连接建立完成消息之后，基于所述接收单元接收的所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
结合本发明实施例的第一方面的第三种实现方式，在本发明实施例的第一方面的第四种实现方式中，
所述发送单元，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；
所述处理单元，还用于与所述UE基于所述发送单元发送的RRC连接重配消息中的DRB配置信息建立DRB。
结合本发明实施例的第一方面的第三种实现方式，在本发明实施例的第一方面的第五种实现方式中，所述无线资源配置信息还包括DRB配置信息；
所述发送单元，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB 标识与所述DRB配置信息之间建立有对应关系；
所述处理单元，还用于与所述UE基于与所述发送单元发送的RRC连接重配消息中的DRB标识对应的所述DRB配置信息建立DRB。
结合本发明实施例的第一方面的第四种或第五种实现方式，在本发明实施例的第一方面的第六种实现方式中，
所述接收单元，还用于在所述处理单元与所述UE基于所述DRB配置信息建立DRB之后，接收所述UE回复的指示消息，所述指示消息用于指示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
结合本发明实施例的第一方面的第四种至第六种实现方式，在本发明实施例的第一方面的第七种实现方式中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
结合本发明实施例的第一方面的第六种或第七种实现方式，在本发明实施例的第一方面的第八种实现方式中，
所述发送单元，还用于在所述发送单元向所述UE发送RRC连接重配消息之前，所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送安全模式指令消息，所述安全模式指令消息携带安全模式信息；
所述接收单元，还用于在所述接收单元接收所述UE回复的指示消息之后，接收所述UE回复的安全模式完成消息。
结合本发明实施例的第一方面的第六种或第七种实现方式，在本发明实施例的第一方面的第九种实现方式中，
所述RRC连接重配消息还携带有安全模式信息；
所述指示消息还携带有安全模式回复信息。
结合本发明实施例的第一方面，在本发明实施例的第一方面的第十种实现方式中，所述随机接入请求消息还携带有NAS安全配置信息；
所述处理单元，还用于当NAS安全配置没有变更时，根据所述接收单元接收的随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信 息；
所述处理单元，还用于基于所述处理单元查询到或生成的业务请求信息与核心网网元建立连接；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
所述处理单元，具体用于与所述UE基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
结合本发明实施例的第一方面的第十种实现方式，在本发明实施例的第一方面的第十一种实现方式中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
结合本发明实施例的第一方面的第一种至第十一种实现方式，在本发明实施例的第一方面的第十二种实现方式中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元，具体用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述SRB指示恢复原SRB。
结合本发明实施例的第一方面、第一方面的第一种至第十二种实现方式，在本发明实施例的第一方面的第十三种实现方式中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
本发明实施例的第二方面提供一种UE，所述UE包括：
发送单元，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
接收单元，用于接收所述接入网元根据所述发送单元发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元，用于与所述接入网元基于所述接收单元接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述发送单元，还用于向所述接入网元发送RRC连接建立完成消息。
结合本发明实施例的第二方面，在本发明实施例的第二方面的第一种实现方式中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述处理单元，具体用于与所述接入网元基于所述SRB配置信息建立SRB。
结合本发明实施例的第二方面的第一种实现方式，在本发明实施例的第二方面的第二种实现方式中，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
结合本发明实施例的第二方面的第一种或第二种实现方式，在本发明实施例的第二方面的第三种实现方式中，所述RRC连接建立完成消息携带业务请求信息；
所述接收单元，还用于在所述发送单元向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述处理单元，还用于与所述接入网元基于所述接收单元接收的RRC连接重配消息中的所述DRB配置信息建立DRB。
结合本发明实施例的第二方面的第一种或第二种实现方式，在本发明实施例的第二方面的第四种实现方式中，所述无线资源配置信息还包括DRB配置信息；所述RRC连接建立完成消息携带业务请求信息；
所述接收单元，还用于在所述发送单元向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述处理单元，还用于与所述接入网元基于与所述接收单元接收的RRC连接重配消息中的所述DRB标识对应的所述DRB配置信息建立DRB。
结合本发明实施例的第二方面的第三种或第四种实现方式，在本发明实施例的第二方面的第五种实现方式中，
所述发送单元，还用于在所述处理单元与所述接入网元基于所述DRB配置信息建立DRB之后，向所述接入网元回复指示消息，所述指示消息用于指 示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
结合本发明实施例的第二方面的第三种至第五种实现方式，在本发明实施例的第二方面的第六种实现方式中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
结合本发明实施例的第二方面的第五种或第六种实现方式，在本发明实施例的第二方面的第七种实现方式中，
所述接收单元，还用于在所述接收单元接收所述接入网元发送的RRC连接重配消息之前，所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，接收所述接入网元发送的安全模式指令消息，所述安全模式指令消息携带安全模式信息；
所述发送单元，还用于在所述发送单元向所述接入网元回复指示消息之后，向所述接入网元回复安全模式完成消息。
结合本发明实施例的第二方面的第五种或第六种实现方式，在本发明实施例的第二方面的第八种实现方式中，
所述RRC连接重配消息还携带有安全模式信息；
所述指示消息还携带有安全模式回复信息。
结合本发明实施例的第二方面，在本发明实施例的第二方面的第九种实现方式中，所述随机接入请求消息还携带有NAS安全配置信息；
所述随机接入回复消息在所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接之后发送；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
所述处理单元，具体用于与所述接入网元基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
结合本发明实施例的第二方面的第九种实现方式，在本发明实施例的第二方面的第十种实现方式中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
结合本发明实施例的第二方面的第一种至第十种实现方式，在本发明实施例的第二方面的第十一种实现方式中，当所述UE和所述接入网元保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元，具体用于与所述接入网元基于所述SRB指示恢复原SRB。
结合本发明实施例的第二方面、第二方面的第一种至第十一种实现方式，在本发明实施例的第二方面的第十二种实现方式中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
本发明实施例的第三方面提供一种接入网络的方法，所述方法包括：
接入网元接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
所述接入网元向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接；
所述接入网元接收所述UE发送的RRC连接建立完成消息。
结合本发明实施例的第三方面，在本发明实施例的第三方面的第一种实现方式中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接包括：
所述接入网元与所述UE基于所述SRB配置信息建立SRB。
结合本发明实施例的第三方面的第一种实现方式，在本发明实施例的第三方面的第二种实现方式中，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
结合本发明实施例的第三方面的第一种或第二种实现方式，在本发明实施例的第三方面的第三种实现方式中，所述RRC连接建立完成消息携带业务请求信息；
在所述接入网元接收所述UE发送的RRC连接建立完成消息之后还包括：
所述接入网元基于所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
结合本发明实施例的第三方面的第三种实现方式，在本发明实施例的第三 方面的第四种实现方式中，
在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
所述接入网元向所述UE发送RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；
所述接入网元与所述UE基于所述DRB配置信息建立DRB。
结合本发明实施例的第三方面的第三种实现方式，在本发明实施例的第三方面的第五种实现方式中，所述无线资源配置信息还包括DRB配置信息；
在所述接入网元基于所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
所述接入网元向所述UE发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；
所述接入网元与所述UE基于与所述DRB标识对应的所述DRB配置信息建立DRB。
结合本发明实施例的第三方面的第四种或第五种实现方式，在本发明实施例的第三方面的第六种实现方式中，在所述接入网元与所述UE基于所述DRB配置信息建立DRB之后还包括：
所述接入网元接收所述UE回复的指示消息，所述指示消息用于指示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
结合本发明实施例的第三方面的第四种至第六种实现方式，在本发明实施例的第三方面的第七种实现方式中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
结合本发明实施例的第三方面的第六种或第七种实现方式，在本发明实施例的第三方面的第八种实现方式中，
在所述接入网元向所述UE发送RRC连接重配消息之前，所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还 包括：
所述接入网元向所述UE发送安全模式指令消息，所述安全模式指令消息携带安全模式信息；
在所述接入网元接收所述UE回复的指示消息之后还包括：
所述接入网元接收所述UE回复的安全模式完成消息。
结合本发明实施例的第三方面的第六种或第七种实现方式，在本发明实施例的第三方面的第九种实现方式中，
所述RRC连接重配消息还携带有安全模式信息；
所述指示消息还携带有安全模式回复信息。
结合本发明实施例的第三方面，在本发明实施例的第三方面的第十种实现方式中，所述随机接入请求消息还携带有NAS安全配置信息；
在所述接入网元向所述UE回应随机接入回复消息之前还包括：
当NAS安全配置没有变更时，所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
则所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接包括：
所述接入网元与所述UE基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
结合本发明实施例的第三方面的第十种实现方式，在本发明实施例的第三方面的第十一种实现方式中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
结合本发明实施例的第三方面的第一种至第十一种实现方式，在本发明实施例的第三方面的第十二种实现方式中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
则所述接入网元与所述UE基于所述SRB配置信息建立SRB包括：
所述接入网元与所述UE基于所述SRB指示恢复原SRB。
结合本发明实施例的第三方面、第三方面的第一种至第十二种实现方式，在本发明实施例的第三方面的第十三种实现方式中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
本发明实施例的第四方面提供一种接入网络的方法，所述方法包括：
UE向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
所述UE接收所述接入网元回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接；
所述UE向所述接入网元发送RRC连接建立完成消息。
结合本发明实施例的第四方面，在本发明实施例的第四方面的第一种实现方式中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接包括：
所述UE与所述接入网元基于所述SRB配置信息建立SRB。
结合本发明实施例的第四方面的第一种实现方式，在本发明实施例的第四方面的第二种实现方式中，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
结合本发明实施例的第四方面的第一种或第二种实现方式，在本发明实施例的第四方面的第三种实现方式中，所述RRC连接建立完成消息携带业务请求信息；
在所述UE向所述接入网元发送RRC连接建立完成消息之后还包括：
所述UE接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；所述RRC连接重配消息在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述UE与所述接入网元基于所述DRB配置信息建立DRB。
结合本发明实施例的第四方面的第一种或第二种实现方式，在本发明实施例的第四方面的第四种实现方式中，所述无线资源配置信息还包括DRB配置信息；所述RRC连接建立完成消息携带业务请求信息；
在所述UE向所述接入网元发送RRC连接建立完成消息之后还包括：
所述UE接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；所述RRC连接重配消息在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述UE与所述接入网元基于与所述DRB标识对应的所述DRB配置信息建立DRB。
结合本发明实施例的第四方面的第三种或第四种实现方式，在本发明实施例的第四方面的第五种实现方式中，在所述UE与所述接入网元基于所述DRB配置信息建立DRB之后还包括：
所述UE向所述接入网元回复指示消息，所述指示消息用于指示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
结合本发明实施例的第四方面的第三种至第五种实现方式，在本发明实施例的第四方面的第六种实现方式中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
结合本发明实施例的第四方面的第五种或第六种实现方式，在本发明实施例的第四方面的第七种实现方式中，
在所述UE接收所述接入网元发送的RRC连接重配消息之前，所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
所述UE接收所述接入网元发送的安全模式指令消息，所述安全模式指令消息携带安全模式信息；
在所述UE向所述接入网元回复指示消息之后还包括：
所述UE向所述接入网元回复安全模式完成消息。
结合本发明实施例的第四方面的第五种或第六种实现方式，在本发明实施例的第四方面的第八种实现方式中，
所述RRC连接重配消息还携带有安全模式信息；
所述指示消息还携带有安全模式回复信息。
结合本发明实施例的第四方面，在本发明实施例的第四方面的第九种实现方式中，所述随机接入请求消息还携带有NAS安全配置信息；
当NAS安全配置没有变更时，所述随机接入回复消息在所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接之后发送；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
则所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接包括：
所述UE与所述接入网元基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
结合本发明实施例的第四方面的第九种实现方式，在本发明实施例的第四方面的第十种实现方式中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
结合本发明实施例的第二方面的第一种至第十种实现方式，在本发明实施例的第二方面的第十一种实现方式中，当所述UE和所述接入网元保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
则所述UE与所述接入网元基于所述SRB配置信息建立SRB包括：
所述UE与所述接入网元基于所述SRB指示恢复原SRB。
结合本发明实施例的第四方面、第四方面的第一种至第十一种实现方式，在本发明实施例的第四方面的第十二种实现方式中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
本发明实施例的第五方面提供一种接入网络的系统，包括：
接入网元，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；与所述UE基于所述无线资源配置信息建立RRC连接；接收所述UE发送的RRC连接建立完成消息。
所述UE，用于向所述接入网元发送所述随机接入请求消息；接收所述接入网元回复的所述随机接入回复消息；与所述接入网元基于所述无线资源配置信息建立RRC连接；向所述接入网元发送所述RRC连接建立完成消息。
本发明实施例提供的技术方案中，接入网元接收到的随机接入请求消息中携带有用于请求建立RRC连接的请求信息，接入网元根据该请求消息为UE分配无线资源，并向UE回复包括无线资源配置信息的随机接入回复消息，使得UE可根据上述无线资源配置信息进行配置，基于该无线资源配置信息建立与接入网元之间的RRC连接，并在RRC连接完成后向接入网元回复RRC连接建立完成消息。因此相对于现有技术，本发明实施例在随机接入流程中便可以完成接入网元对无线资源的分配，并将分配完成的无线资源配置信息封装在随机接入回复消息中，使得UE在完成随机接入流程结束便可直接利用该无线资源配置信息与接入网元建立RRC连接，可以优化网络接入流程以解决控制面开销过大的问题，有效提高无线网络资源的使用效率，且整个网络接入流程只涉及UE与接入网之间的信令优化，无需对核心网进行改动。
附图说明
图1为本发明实施例中接入网络的系统一个实施例示意图；
图2为本发明实施例中接入网络的方法一个实施例示意图；
图3为本发明实施例中接入网络的方法另一实施例示意图；
图4为本发明实施例中接入网络的方法另一实施例示意图；
图5为本发明实施例中接入网络的方法另一实施例示意图；
图6为本发明实施例中接入网络的方法另一实施例示意图；
图7为本发明实施例中接入网络的方法另一实施例示意图；
图8为本发明实施例中接入网元一个实施例示意图；
图9为本发明实施例中接入网元另一实施例示意图；
图10为本发明实施例中接入网元另一实施例示意图；
图11为本发明实施例中接入网元另一实施例示意图；
图12为本发明实施例中UE一个实施例示意图；
图13为本发明实施例中UE另一实施例示意图；
图14为本发明实施例中UE另一实施例示意图；
图15为本发明实施例中UE另一实施例示意图。
具体实施方式
本发明实施例提供了一种接入网络的方法以及相关装置，可以在不改动核心网的情况下优化网络接入流程，提高无线网络资源的使用效率。以下分别进行详细说明。
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，所描述的实施例仅仅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。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本发明的技术方案可以应用于各种通信系统，例如：GSM(Global System for Mobile Communication，全球移动通信系统)，CDMA(CodeDivision Multiple Access，码分多址)，WCDMA，CDMA2000，WIMAX(Worldwide Interoperability for Microwave Access，全球互通微波存取)，宽带码分多址，GPRS(通用分组无线业务，General Packet Radio Service)，LTE(Long Term Evolution，长期演进)等。
如图1所示，为本发明通信系统的结构示意图，其包括核心网元11、接入网元12和UE 13；核心网网元11可以通过有线方式与接入网元12通信连接，接入网元12可以通过无线方式与至少一个UE 13通信连接。
在本发明的技术方案中，网络侧的核心网网元11和接入网元12可以是上 述GSM、CDMA或LTE等任意制式通信系统中的核心网部分和接入网部分，具体此处不做限定。
例如，在WCDMA系统中，核心网为WCDMA核心网，接入网为UTRAN(Universal Terrestrial Radio Access Network，陆地无线接入网)，UTRAN包括RNC(Radio Network Controller，无线网络控制器)、基站(NodeB)和UE，其中，由RNC控制UTRAN的无线资源，包括完成连接建立和断开、切换、宏分及合并、无线资源管理控制等功能。
又例如，在LTE系统中，核心网为LTE核心网，包括MME、SAE GW等部分，接入网包括演进型基站(eNodeB)和UE。eNodeB不仅具有原来NodeB的功能外，还能完成原来RNC的大部分功能，包括物理层、MAC层、RRC、调度、接入控制、承载控制、接入移动性管理等。
上述仅仅举例WCDMA，LTE系统进行示意性说明，在其他制式的通信网络中，本发明同样也适用，具体此处不作限定。
在本发明的技术方案中，UE 13可以是任意具备网络连接功能的设备，例如支持网络连接功能的手机、MTC终端、电视机、服务器、无线路由器、其他各种家用电器或办公设备等，具体此处不一一列举。
在本实施例中，接入网元12，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；与所述UE基于所述无线资源配置信息建立RRC连接；接收所述UE发送的RRC连接建立完成消息。
所述UE，用于向所述接入网元发送所述随机接入请求消息；接收所述接入网元回复的所述随机接入回复消息；与所述接入网元基于所述无线资源配置信息建立RRC连接；向所述接入网元发送所述RRC连接建立完成消息。
请参阅图2，本发明实施例中接入网络的方法一个实施例包括：
201、接入网元接收UE发送的随机接入请求消息；
在UE选择合适的小区进行正常驻留以后，UE就可以在为其分配资源的DCI(Downlink Control Information，下行控制信息)指示的资源上向接入网元发送随机接入请求消息，以发起随机接入流程。需要强调的是，在本实施例中， 随机接入请求消息除了携带随机接入相关参数外，还携带有用于请求建立RRC连接的请求信息。在本实施例中，携带随机接入的相关参数可以参考现有相关标准以及后续相关标准中的规定，在本实施例中不做赘述。
202、接入网元向UE回复随机接入回复消息；
即在接收到UE发送的随机接入请求消息后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
203、接入网元与UE基于无线资源配置信息建立RRC连接；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功，同时还获取到接入网元为UE分配的无线资源配置信息。在UE根据无线资源配置信息进行配置后，接入网元与UE基于该无线资源配置信息建立RRC连接。
204、接入网元接收UE发送的RRC连接建立完成消息。
即在接入网元与UE基于无线资源配置信息建立RRC连接后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。
本发明实施例提供的技术方案中，接入网元接收到的随机接入请求消息中携带有用于请求建立RRC连接的请求信息，接入网元根据该请求消息为UE分配无线资源，并向UE回复包括无线资源配置信息的随机接入回复消息，使得UE可根据上述无线资源配置信息进行配置，基于该无线资源配置信息建立与接入网元之间的RRC连接，并在RRC连接完成后向接入网元回复RRC连接建立完成消息。因此相对于现有技术，本发明实施例在随机接入流程中便可以完成接入网元对无线资源的分配，并将分配完成的无线资源配置信息封装在随机接入回复消息中，使得UE在完成随机接入流程结束便可直接利用该无线资源配置信息与接入网元建立RRC连接，可以优化网络接入流程以解决控制面开销过大的问题，有效提高无线网络资源的使用效率，且整个网络接入流程只涉及UE与接入网之间的信令优化，无需对核心网进行改动。
下面结合图2所示实施例，进一步描述UE通过接入网元接入到核心网 元的流程，具体请参阅图3，本发明实施例中接入网络的方法另一实施例包括：
301、接入网元接收UE发送的随机接入请求消息；
在UE选择合适的小区进行正常驻留以后，UE就可以在为其分配资源的DCI(Downlink Control Information，下行控制信息)指示的资源上向接入网元发送随机接入请求消息，以发起随机接入流程。
需要强调的是，在本实施例中，随机接入请求消息除了携带随机接入相关参数外，还携带有用于请求建立RRC连接的请求信息。在本实施例中，携带随机接入的相关参数可以包括UE标识，当网络侧没有为UE分配标识时，该UE标识可以是一个40bits的随机数，当网络侧为UE分配了TMSI(Temporary Mobile Subscriber Identity，临时识别码)时，该UE标识可以是TMSI，当网络侧为UE分配了C-RNTI(Cell Radio Network Temporary Identifier，小区无线网络临时标识)或者UE保持在连接态，保存有之前分配得到的C-RNTI时，该UE标识可以是C-RNTI，具体此处不作限定，本领域技术人员可以参考现有相关标准以及后续相关标准中的规定，在本实施例中不做赘述。
在本实施例中，请求信息包括用于指示RRC连接建立原因的原因值指示，其中，RRC连接建立原因可以包括：紧急呼叫、高优先级接入、MT接入、MO信令、MO数据以及MTC业务接入等，具体此处不做限定。可以理解的是，根据该原因值指示，接入网元可以依据其所指示的RRC连接建立原因进行相应的无线资源分配。
在本实施例中，随机接入请求消息可以为random access request消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
302、接入网元向UE回复随机接入回复消息；
即在接收到UE发送的随机接入请求消息后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
在本实施例中，无线资源配置信息可以包括SRB配置信息，该SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY 配置信息中任意一个或多个；其中，逻辑信道配置信息可以包括逻辑信道id，逻辑信道优先级等。可以理解的是，为进一步降低空口传输信令开销，该SRB配置信息中的部分配置信息可以直接写入到协议中，不在空口传输，例如可以默认媒体接入控制层MAC配置和物理层PHY配置。需要说明的是，在本实施例中，当接入网元和UE保存有之前接入网络的原SRB配置信息时，若再次接入网络，则SRB配置信息可以包括SRB指示，所述SRB指示用于指示所述UE恢复之间的原SRB，即接入网元和UE可以根据该SRB指示识别原SRB配置信息，以基于原SRB配置信息建立原SRB，在本实施例中，对SRB配置信息的具体表达形式不作限定。可以理解的是，在本实施例中，无线资源配置信息除了包含SRB配置信息之外，还可以进一步包括其他涉及无线资源分配的信息，具体此处不做限定。
在本实施例中，随机接入回复消息可以为random access response消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
需要说明的是，步骤301和步骤302为UE的随机接入流程，本发明实施例可以适用于多种不同类型或是多种不同触发条件下的随机接入流程，具体此处不做限定，可以根据实际需求选择。在本实施例中，在随机接入流程中便可以完成接入网元对SRB配置资源的分配，并将分配完成的SRB配置资源封装在向UE发送的随机接入回复消息中。
303、接入网元与UE基于SRB配置信息建立SRB；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功，同时还获取到接入网元为UE分配的包括SRB配置信息的无线资源配置信息。在UE根据SRB配置信息进行配置后，接入网元与UE基于该SRB配置信息建立SRB。
304、接入网元接收UE发送的RRC连接建立完成消息；
即在接入网元与UE基于无线资源配置信息建立RRC连接后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。在本实施例中，RRC连接建立完成消息可以为RRC Connection Setup Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
进一步地，在执行步骤304之后，本实施例还包括UE通过接入网元接入 到核心网元的UE初始上下文建立流程：步骤305。在本实施例中，RRC连接建立完成消息携带业务请求信息，如业务请求Service Request，该service request是由UE的NAS层发起的。
305、接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
在本发明的技术方案中，接入网元与核心网网元之间的UE初始上下文建立流程可参考现有相关标准以及后续相关标准中的规定，例如，在本实施例中，步骤305可以包括：
接入网元向核心网网元发送UE初始上下文信息，所述UE初始上下文信息携带业务请求信息；
接入网元接收MME发送的UE上下文建立请求信息，该UE上下文建立请求信息携带有QoS参数等。
可以理解的是，本发明实施例适用于多种UE初始上下文建立流程，此处对UE初始上下文建立流程的具体实现方式不做限定。需要说明的是，在一些应用场景中，UE初始上下文建立流程中的业务请求信息，也可以不是携带在RRC连接建立完成消息中的，而是由接入网元生成，例如在NAS安全配置不变期间发起同样的业务的应用场景。
可选地，在执行UE初始上下文建立流程之后，在本发明实施例还可以进一步包括RRC重配置流程，RRC重配置流程可参考现有相关标准以及后续相关标准中的规定，例如，RRC重配置流程可以包括下述步骤306和步骤307，具体的：
306、接入网元向UE发送RRC连接重配消息；
其中，RRC连接重配消息携带DRB建立参数，该DRB配置信息包括承载配置信息、逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个；其中，承载配置信息可以包括承载id，比如EPS id，RB id等，逻辑信道配置信息可以包括逻辑信道id，逻辑信道优先级等。可以理解的是，为进一步降低空口传输信令开销，该DRB配置信息中的部分配置信息可以直接写入到协议中，不在空口传输，例如可以默认媒体接入控制层MAC配置和物理层PHY配置。
307、接入网元与UE基于DRB配置信息建立DRB；
在接入网元向UE发送RRC连接重配消息后，UE获取到接入网元为UE分配的DRB配置信息。在UE根据DRB配置信息进行配置后，接入网元与UE基于该DRB配置信息建立DRB。
可以理解的是，除了上述举例的RRC重配置流程外，本发明实施例还适用于多种RRC重配置流程，作为优选，在本发明实施例中，RRC重配置流程可以包括如下操作：
在本实施例中，步骤302中的无线资源配置信息还可以包括DRB配置信息，则相应的RRC重配置流程可以包括：
接入网元向UE发送RRC连接重配消息；
其中，RRC连接重配消息携带DRB标识，该DRB标识与所述DRB配置信息之间建立有对应关系。接入网元和UE预先建立有上述对应关系，在接收到DRB标识时，通过该对应关系确定对应的DRB配置信息。
以及，接入网元与UE基于与DRB标识对应的DRB配置信息建立DRB；
即接入网元和UE通过该对应关系确定对应的DRB配置信息后，基于该DRB配置信息建立DRB。
可选地，在本发明实施例中，RRC重配置流程还可以在建立DRB后进一步包括步骤308：接入网元接收UE回复的指示消息；
其中，指示消息用于指示RRC连接重配完成，至此，接入网元和UE可以进入正常通信过程。在本实施例中，该指示消息的具体实现方案可以是采用RRC消息方式的RRC连接重配完成消息(诸如RRC Connection Reconfiguration Complete消息或者具有相同功能的其他名称的消息)，也可以是采用MAC信令方式的用于指示RRC连接重配完成的MAC信令。需要说明的是，步骤308仅为RRC重配置流程中的可选步骤，在实际应用过程中，也可以通过隐形指示RRC连接重配完成来省略步骤308，例如可以设置为在满足下述条件下则确认RRC连接重配完成：接入网元维护的定时器超时、接入网元接收到RRC连接重配消息的ACK确认，或者是接入网元接收到第一个上行数据。
需要说明的是，在本发明实施例的RRC重配置流程中，在随机接入流程中便可以完成接入网元对SRB配置资源和DRB配置资源的分配，并将分配完 成的SRB配置资源和DRB配置资源封装在向UE发送的随机接入回复消息中。
可选地，在本发明的技术方案中，还可以进一步包括安全配置流程，安全配置流程可参考现有相关标准以及后续相关标准中的规定，例如，安全配置流程可以包括：
在执行UE初始上下文建立流程之后，执行RRC重配置流程之前，接入网元向UE发送安全模式指令消息，该安全模式指令消息携带安全模式信息；在执行RRC重配置流程之后，接入网元接收UE回复的安全模式完成消息。其中，安全模式指令消息可以为Security Mode Command消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定；安全模式完成消息可以为Security Mode Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
在本实施例中，为了进一步降低空口传输信令开销，安全配置流程可以与RRC重配置流程相结合，以激活AS安全。即在本实施例中：RRC连接重配消息还携带有安全模式信息，指示消息还携带有安全模式回复信息。
可以理解的是，本发明实施例适用于多种安全配置流程，此处对安全配置流程的具体实现方式不做限定。需要说明的是，在一些应用场景中，考虑到AS安全配置的更新机制(几天更新一次)，当接入网元和UE保留有AS上下文时，即使RRC连接已经拆除，再次接入网络时，也可以使用上次的AS配置信息，并省略安全配置流程。
当AS安全激活成功，接入网元和UE之间便可以进行数据传输，可选地，在本发明的技术方案中，还可以进一步包括RRC连接释放流程，RRC连接释放流程旨在释放RRC连接，包括建立的无线承载以及所有无线资源的释放，使UE返回IDLE态，该RRC连接释放流程可参考现有相关标准以及后续相关标准中的规定，在本实施例中，RRC连接释放流程可以包括：当UE接收到最后一个数据包的ACK时，由UE发起RRC连接释放流程，此时，接入网元接收UE发送的用于请求释放RRC连接的MAC信令，当接入网元接收到核心网元发送的UE Context Release Command消息后，向UE发送用于释放RRC连接的MAC信令。
在图2所示实施例的基础上，在本发明实施例提供的技术方案提供了一种 UE通过接入网元接入到核心网元以及建立DRB的流程。与现有技术相比，本发明实施例提供的技术方案中可以在RRC重配置流程中完成安全配置认证，以降低信令开销；而且，在本发明实施例提供的技术方案中，在接入网元向UE回复随机接入回复消息中还携带有DRB配置信息，使得在接入网元向UE发送RRC连接重配消息时，无需在该RRC连接重配消息再携带DRB配置信息，而只需携带DRB标识便可根据对应关系确定对应的DRB配置信息。
在本发明的技术方案中，考虑到NAS安全配置的更新机制，当NAS安全配置不变期间发起同样的业务时，UE可以基于不同的信令流程接入核心网，具体请参阅图4，本发明实施例中接入网络的方法另一实施例包括：
401、接入网元接收UE发送的随机接入请求消息；
需要说明的是，本实施例中的步骤401与图3所示实施例中的步骤301的不同之处在于：在本实施例中，随机接入请求消息还携带有NAS安全配置信息。
在本实施例中，NAS安全配置信息可以包括NAS指示，该NAS指示用于指示所述NAS安全配置是否发生变更。在其他应用场景中，也可以是由接入网元根据NAS安全配置信息判断NAS安全配置是否变更，具体此处不做限定。
402、接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息；
即当NAS安全配置没有变更时，接入网元根据随机接入请求消息中的UE标识查询接入网元为UE保存的业务请求信息，或者接入网元根据随机接入请求消息中的UE标识和请求信息生成业务请求信息。可以理解的是，在本实施例中，业务请求信息可以是与业务请求对应的相关参数信息，也可以直接是业务请求Service Request。
403、接入网元基于业务请求信息与核心网网元建立连接；
在本实施例中，接入网元向核心网网元发送上述查询到或生成的业务请求信息(业务请求Service Request或者与业务请求对应的相关参数信息)，并基于该业务请求信息与核心网网元建立连接。
步骤403为接入网元与核心网网元之间的UE初始上下文建立流程，例如， 在本实施例中，步骤403可以包括：
接入网元向核心网网元发送UE初始上下文信息，UE初始上下文信息携带业务请求信息；
接入网元接收MME发送的UE上下文建立请求信息，该UE上下文建立请求信息携带有QoS参数等。
具体过程请参见图3所示实施例中的步骤305，在本实施例中不做赘述。
404、接入网元向UE回复随机接入回复消息；
即在完成UE初始上下文建立流程后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
在本实施例中，无线资源配置信息可以包括SRB配置信息和DRB配置信息。其中，SRB配置信息可参见图3所示实施例中的步骤302中的详细说明，在此不再赘述，DRB配置信息可参见图3所示实施例中的步骤306中的详细说明，在此不再赘述。
可以理解的是，在本实施例中，无线资源配置信息除了包含SRB配置信息和DRB配置信息之外，还可以进一步包括其他涉及无线资源分配的信息，具体此处不做限定。
在本实施例中，随机接入回复消息可以为random access response消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
需要说明的是，在执行步骤404后，UE的随机接入流程结束，本发明实施例可以适用于多种不同类型或是多种不同触发条件下的随机接入流程，具体此处不做限定，可以根据实际需求选择。在本实施例中，在随机接入流程中便可以完成接入网元对SRB配置资源和DRB配置资源的分配，并将分配完成的SRB配置资源和DRB配置资源封装在向UE发送的随机接入回复消息中。
405、接入网元与UE基于SRB配置信息建立SRB；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功，同时还获取到接入网元为UE分配的包括SRB配置信息的无线资源配置信息。 在UE根据SRB配置信息进行配置后，接入网元与UE基于该SRB配置信息建立SRB。
406、接入网元与UE基于DRB配置信息建立DRB；
在接入网元与UE基于SRB配置信息建立SRB后，UE根据DRB配置信息进行配置，并与接入网元基于DRB配置信息建立DRB，至此，接入网元和UE之间便可以进行数据传输，UE被快速接入网络。
407、接入网元接收UE发送的RRC连接建立完成消息；
即在接入网元与UE基于SRB配置信息建立SRB和基于DRB配置信息建立DRB后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。在本实施例中，RRC连接建立完成消息可以为RRC Connection Setup Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
与图3所示的实施例相比，本发明实施例提供的技术方案提供了一种基于不同信令流程将UE通过接入网元接入到核心网元以及建立DRB的流程，且可应用于NAS安全配置不变期间发起同样的业务的应用场景。与现有技术相比，本发明实施例提供的技术方案可以将UE快速接入网络。
图2至图4所示的实施例是从接入网元的角度来描述的，下面从UE的角度对本发明实施例中接入网络的方法进行详细说明，具体请参阅图5，本发明实施例中接入网络的方法另一实施例包括：
501、UE向接入网元发送随机接入请求消息；
在UE选择合适的小区进行正常驻留以后，UE就可以在为其分配资源的DCI(Downlink Control Information，下行控制信息)指示的资源上向接入网元发送随机接入请求消息，以发起随机接入流程。需要强调的是，在本实施例中，随机接入请求消息除了携带随机接入相关参数外，还携带有用于请求建立RRC连接的请求信息。在本实施例中，携带随机接入的相关参数可以参考现有相关标准以及后续相关标准中的规定，在本实施例中不做赘述。
502、UE接收接入网元回复的随机接入回复消息；
即在接收到UE发送的随机接入请求消息后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回 复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
503、UE与接入网元基于无线资源配置信息建立RRC连接；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功，同时还获取到接入网元为UE分配的无线资源配置信息。在UE根据无线资源配置信息进行配置后，UE与接入网元基于该无线资源配置信息建立RRC连接。
504、UE向接入网元发送RRC连接建立完成消息；
即在UE与接入网元基于无线资源配置信息建立RRC连接后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。
发明实施例提供的技术方案中，UE向接入网元发送的随机接入请求消息中携带有用于请求建立RRC连接的请求信息，使得接入网元可根据该请求消息为UE分配无线资源，并向UE回复包括无线资源配置信息的随机接入回复消息，UE可根据上述无线资源配置信息进行配置，基于该无线资源配置信息建立与接入网元之间的RRC连接，并在RRC连接完成后向接入网元回复RRC连接建立完成消息。因此相对于现有技术，本发明实施例在随机接入流程中便可以完成接入网元对无线资源的分配，并将分配完成的无线资源配置信息封装在随机接入回复消息中，使得UE在完成随机接入流程结束便可直接利用该无线资源配置信息与接入网元建立RRC连接，可以优化网络接入流程以解决控制面开销过大的问题，有效提高无线网络资源的使用效率，且整个网络接入流程只涉及UE与接入网之间的信令优化，无需对核心网进行改动。
下面结合图5所示的实施例，进一步描述UE通过接入网元接入到核心网元的流程，具体请参阅图6，本发明实施例中接入网络的方法另一实施例包括：
601、UE向接入网元发送随机接入请求消息；
在UE选择合适的小区进行正常驻留以后，UE就可以在为其分配资源的DCI(Downlink Control Information，下行控制信息)指示的资源上向接入网元发送随机接入请求消息，以发起随机接入流程。
需要强调的是，在本实施例中，随机接入请求消息除了携带随机接入相关参数外，还携带有用于请求建立RRC连接的请求信息。在本实施例中，携带 随机接入的相关参数可以包括UE标识，当网络侧没有为UE分配标识时，该UE标识可以是一个40bits的随机数，当网络侧为UE分配了TMSI(Temporary Mobile Subscriber Identity，临时识别码)时，该UE标识可以是TMSI，当网络侧为UE分配了C-RNTI(Cell Radio Network Temporary Identifier，小区无线网络临时标识)或者UE保持在连接态，保存有之前分配得到的C-RNTI时，该UE标识可以是C-RNTI，具体此处不作限定，本领域技术人员可以参考现有相关标准以及后续相关标准中的规定，在本实施例中不做赘述。
在本实施例中，请求信息包括用于指示RRC连接建立原因的原因值指示，其中，RRC连接建立原因可以包括：紧急呼叫、高优先级接入、MT接入、MO信令、MO数据以及MTC业务接入等，具体此处不做限定。可以理解的是，根据该原因值指示，接入网元可以依据其所指示的RRC连接建立原因进行相应的无线资源分配。
在本实施例中，随机接入请求消息可以为random access request消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
602、UE接收接入网元回复的随机接入回复消息；
即在接收到UE发送的随机接入请求消息后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
在本实施例中，无线资源配置信息可以包括SRB配置信息，该SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个；其中，逻辑信道配置信息可以包括逻辑信道id，逻辑信道优先级等。可以理解的是，为进一步降低空口传输信令开销，该SRB配置信息中的部分配置信息可以直接写入到协议中，不在空口传输，例如可以默认媒体接入控制层MAC配置和物理层PHY配置。需要说明的是，在本实施例中，当接入网元和UE保存有之前接入网络的原SRB配置信息时，若再次接入网络，则SRB配置信息可以包括SRB指示，所述SRB指示用于指示所述UE恢复之间的原SRB，即接入网元和UE可以根据该SRB指示识别原 SRB配置信息，以基于原SRB配置信息建立原SRB，在本实施例中，对SRB配置信息的具体表达形式不作限定。可以理解的是，在本实施例中，无线资源配置信息除了包含SRB配置信息之外，还可以进一步包括其他涉及无线资源分配的信息，具体此处不做限定。
在本实施例中，随机接入回复消息可以为random access response消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
需要说明的是，步骤601和步骤602为UE的随机接入流程，本发明实施例可以适用于多种不同类型或是多种不同触发条件下的随机接入流程，具体此处不做限定，可以根据实际需求选择。在本实施例中，在随机接入流程中便可以完成接入网元对SRB配置资源的分配，并将分配完成的SRB配置资源封装在向UE发送的随机接入回复消息中。
603、UE与接入网元基于SRB配置信息建立SRB；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功，同时还获取到接入网元为UE分配的包括SRB配置信息的无线资源配置信息。在UE根据SRB配置信息进行配置后，接入网元与UE基于该SRB配置信息建立SRB。
604、UE向接入网元发送RRC连接建立完成消息；
即在UE与接入网元基于无线资源配置信息建立RRC连接后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。在本实施例中，RRC连接建立完成消息可以为RRC Connection Setup Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
进一步地，在执行步骤604之后，本实施例还包括UE通过接入网元接入到核心网元的UE初始上下文建立流程。在本实施例中，RRC连接建立完成消息携带业务请求信息，如业务请求Service Request，该service request是由UE的NAS层发起的。
UE初始上下文建立流程为步骤605：接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。在本发明的技术方案中，接入网元与核心网网元之间的UE初始上下文建立流程可参考现有相关标准以及后续相关标准中的规定，例如，在本实施例中，步骤605可以包括：
接入网元向核心网网元发送UE初始上下文信息，所述UE初始上下文信息携带业务请求信息；
接入网元接收MME发送的UE上下文建立请求信息，该UE上下文建立请求信息携带有QoS参数等。
可以理解的是，本发明实施例适用于多种UE初始上下文建立流程，此处对UE初始上下文建立流程的具体实现方式不做限定。需要说明的是，在一些应用场景中，UE初始上下文建立流程中的业务请求信息，也可以不是携带在RRC连接建立完成消息中的，而是由接入网元生成，例如在NAS安全配置不变期间发起同样的业务的应用场景。
可选地，在执行UE初始上下文建立流程之后，在本发明实施例还可以进一步包括RRC重配置流程，RRC重配置流程可参考现有相关标准以及后续相关标准中的规定，例如，RRC重配置流程可以包括下述步骤606和步骤607，具体的：
606、UE接收接入网元发送的RRC连接重配消息；
需要说明的是，在本实施例中，步骤606在接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送。
其中，RRC连接重配消息携带DRB建立参数，该DRB配置信息包括承载配置信息、逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个；其中，承载配置信息可以包括承载id，比如EPS id，RB id等，逻辑信道配置信息可以包括逻辑信道id，逻辑信道优先级等。可以理解的是，为进一步降低空口传输信令开销，该DRB配置信息中的部分配置信息可以直接写入到协议中，不在空口传输，例如可以默认媒体接入控制层MAC配置和物理层PHY配置。
607、UE与接入网元基于DRB配置信息建立DRB；
在接入网元向UE发送RRC连接重配消息后，UE获取到接入网元为UE分配的DRB配置信息。在UE根据DRB配置信息进行配置后，接入网元与UE基于该DRB配置信息建立DRB。
可以理解的是，除了上述举例的RRC重配置流程外，本发明实施例还适用于多种RRC重配置流程，作为优选，在本发明实施例中，RRC重配置流程 可以包括如下操作：
在本实施例中，步骤602中的无线资源配置信息还可以包括DRB配置信息，则相应的RRC重配置流程可以包括：
UE接收接入网元发送的RRC连接重配消息；
其中，RRC连接重配消息携带DRB标识，该DRB标识与所述DRB配置信息之间建立有对应关系。UE和接入网元预先建立有上述对应关系，在接收到DRB标识时，通过该对应关系确定对应的DRB配置信息。
以及，UE与接入网元基于与DRB标识对应的DRB配置信息建立DRB；
即UE和接入网元通过该对应关系确定对应的DRB配置信息后，基于该DRB配置信息建立DRB。
可选地，在本发明实施例中，RRC重配置流程还可以在建立DRB后进一步包括步骤608：UE向接入网元回复指示消息；
其中，指示消息用于指示RRC连接重配完成，至此，UE和接入网元可以进入正常通信过程。在本实施例中，该指示消息的具体实现方案可以是采用RRC消息方式的RRC连接重配完成消息(诸如RRC Connection Reconfiguration Complete消息或者具有相同功能的其他名称的消息)，也可以是采用MAC信令方式的用于指示RRC连接重配完成的MAC信令。需要说明的是，步骤608仅为RRC重配置流程中的可选步骤，在实际应用过程中，也可以通过隐形指示RRC连接重配完成来省略步骤608，例如可以设置为在满足下述条件下则确认RRC连接重配完成：接入网元维护的定时器超时、接入网元接收到RRC连接重配消息的ACK确认，或者是接入网元接收到第一个上行数据等。
需要说明的是，在本发明实施例的RRC重配置流程中，在随机接入流程中便可以完成接入网元对SRB配置资源和DRB配置资源的分配，并将分配完成的SRB配置资源和DRB配置资源封装在向UE发送的随机接入回复消息中，因此，UE在随机接入流程中便可获得接入网元为UE分配好的SRB配置资源和DRB配置资源。
可选地，在本发明的技术方案中，还可以进一步包括安全配置流程，安全配置流程可参考现有相关标准以及后续相关标准中的规定，例如，安全配置流程可以包括：
在执行UE初始上下文建立流程之后，执行RRC重配置流程之前，UE接收接入网元发送的安全模式指令消息，该安全模式指令消息携带安全模式信息；在执行RRC重配置流程之后，UE向接入网元回复安全模式完成消息。其中，安全模式指令消息可以为Security Mode Command消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定；安全模式完成消息可以为Security Mode Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
在本实施例中，为了进一步降低空口传输信令开销，安全配置流程可以与RRC重配置流程相结合，以激活AS安全。即在本实施例中：RRC连接重配消息还携带有安全模式信息，指示消息还携带有安全模式回复信息。
可以理解的是，本发明实施例适用于多种安全配置流程，此处对安全配置流程的具体实现方式不做限定。需要说明的是，在一些应用场景中，考虑到AS安全配置的更新机制(几天更新一次)，当UE和接入网元保留有AS上下文时，即使RRC连接已经拆除，再次接入网络时，也可以使用上次的AS配置信息，并省略安全配置流程。
当AS安全激活成功，UE和接入网元之间便可以进行数据传输，可选地，在本发明的技术方案中，还可以进一步包括RRC连接释放流程，RRC连接释放流程旨在释放RRC连接，包括建立的无线承载以及所有无线资源的释放，使UE返回IDLE态，该RRC连接释放流程可参考现有相关标准以及后续相关标准中的规定，在本实施例中，RRC连接释放流程可以包括：当UE接收到最后一个数据包的ACK时，由UE发起RRC连接释放流程，此时，UE向接入网元发送用于请求释放RRC连接的MAC信令，当接入网元接收到核心网元发送的UE Context Release Command消息后，UE接收接入网元发送的用于释放RRC连接的MAC信令。
在图5所示实施例的基础上，在本发明实施例提供的技术方案提供了一种UE通过接入网元接入到核心网元以及建立DRB的流程。与现有技术相比，本发明实施例提供的技术方案中可以在RRC重配置流程中完成安全配置认证，以降低信令开销；而且，在本发明实施例提供的技术方案中，在UE接收接入网元回复的随机接入回复消息中还携带有DRB配置信息，使得在UE接 收接入网元发送的RRC连接重配消息时，无需在该RRC连接重配消息再携带DRB配置信息，而只需携带DRB标识便可根据对应关系确定对应的DRB配置信息。
在本发明的技术方案中，考虑到NAS安全配置的更新机制，当NAS安全配置不变期间发起同样的业务时，UE可以基于不同的信令流程接入核心网，具体请参阅图7，本发明实施例中接入网络的方法另一实施例包括：
701、UE向接入网元发送随机接入请求消息；
需要说明的是，本实施例中的步骤701与图6所示实施例中的步骤601的不同之处在于：在本实施例中，随机接入请求消息还携带有NAS安全配置信息。
在本实施例中，NAS安全配置信息可以包括NAS指示，该NAS指示用于指示所述NAS安全配置是否发生变更。在其他应用场景中，也可以是由接入网元根据NAS安全配置信息判断NAS安全配置是否变更，具体此处不做限定。
在本实施例中，接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息；
即当NAS安全配置没有变更时，接入网元根据随机接入请求消息中的UE标识查询接入网元为UE保存的业务请求信息，或者接入网元根据随机接入请求消息中的UE标识和请求信息生成业务请求信息。可以理解的是，在本实施例中，业务请求信息可以是与业务请求对应的相关参数信息，也可以直接是业务请求Service Request。
在本实施例中，UE初始上下文建立流程中的业务请求信息不是携带在RRC连接建立完成消息中，而是由接入网元按照上述方式查询或生成。在本实施例中，接入网元基于通过查询或生成方式得到的业务请求信息与核心网网元建立连接，以完成接入网元与核心网网元之间的UE初始上下文建立流程。可以理解的是，在本实施例中，接入网元与核心网网元之间的UE初始上下文建立流程，其具体实现过程可参考现有相关标准以及后续相关标准中的规定，例如，在本实施例中，UE初始上下文建立流程可以包括步骤702：
接入网元向核心网网元发送UE初始上下文信息，UE初始上下文信息携 带业务请求信息；
接入网元接收MME发送的UE上下文建立请求信息，该UE上下文建立请求信息携带有QoS参数等。
具体过程请参见图6所示实施例中的步骤605，在本实施例中不做赘述。
703、UE接收接入网元回复的随机接入回复消息；
需要说明的是，在本实施例中，随机接入回复消息是在接入网元根据随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于业务请求信息与核心网网元建立连接之后发送；
即在完成UE初始上下文建立流程后，接入网元对该随机接入请求消息进行响应并根据请求信息为UE分配无线资源，且将对应分配完成的无线资源配置信息封装在随机接入回复消息中，因此，在本实施例中，随机接入回复消息除了包括随机接入响应信息外，还包括接入网元为UE分配的无线资源配置信息。
在本实施例中，无线资源配置信息可以包括SRB配置信息和DRB配置信息。其中，SRB配置信息可参见图6所示实施例中的步骤602中的详细说明，在此不再赘述，DRB配置信息可参见图3所示实施例中的步骤606中的详细说明，在此不再赘述。
可以理解的是，在本实施例中，无线资源配置信息除了包含SRB配置信息和DRB配置信息之外，还可以进一步包括其他涉及无线资源分配的信息，具体此处不做限定。
在本实施例中，随机接入回复消息可以为random access response消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
需要说明的是，在执行步骤703后，UE的随机接入流程结束，本发明实施例可以适用于多种不同类型或是多种不同触发条件下的随机接入流程，具体此处不做限定，可以根据实际需求选择。在本实施例中，在随机接入流程中便可以完成接入网元对SRB配置资源和DRB配置资源的分配，并将分配完成的SRB配置资源和DRB配置资源封装在向UE发送的随机接入回复消息中。
704、UE与接入网元基于SRB配置信息建立SRB；
在UE接收到接入网元发送的随机接入回复消息后，UE随机接入成功， 同时还获取到接入网元为UE分配的包括SRB配置信息的无线资源配置信息。在UE根据SRB配置信息进行配置后，UE与接入网元基于该SRB配置信息建立SRB。
705、UE与接入网元基于DRB配置信息建立DRB；
在UE与接入网元基于SRB配置信息建立SRB后，UE根据DRB配置信息进行配置，并与接入网元基于DRB配置信息建立DRB，至此，UE和接入网元之间便可以进行数据传输，UE被快速接入网络。
706、UE向接入网元发送RRC连接建立完成消息；
即在UE与接入网元基于SRB配置信息建立SRB和基于DRB配置信息建立DRB后，UE接入到网络，并向接入网元发送RRC连接建立完成消息。在本实施例中，RRC连接建立完成消息可以为RRC Connection Setup Complete消息，也可以是具有相同功能的其他名称的消息，具体此处不做限定。
与图6所示的实施例相比，本发明实施例提供的技术方案提供了一种基于不同信令流程将UE通过接入网元接入到核心网元以及建立DRB的流程，且可应用于NAS安全配置不变期间发起同样的业务的应用场景。与现有技术相比，本发明实施例提供的技术方案可以将UE快速接入网络。
上面对本发明实施例中接入网络的方法进行了描述，下面对本发明实施例中接入网元进行描述，请参阅图8，本发明实施例中接入网元一个实施例包括：
本发明实施例中的接入网元可以实现图2所示实施例的流程，所述接入网元包括：
接收单元801，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
发送单元802，用于根据所述接收单元801接收的所述随机接入请求消息向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元803，用于与所述UE基于所述发送单元802发送的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述接收单元801，还用于接收所述UE发送的RRC连接建立完成消息。
为便于理解，下面以一具体应用场景为例，对本实施例中的接入网元的内 部运作流程进行描述：
接收单元801接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；发送单元802向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；处理单元803与所述UE基于所述无线资源配置信息建立RRC连接；所述接收单元801还接收所述UE发送的RRC连接建立完成消息。
本发明实施例提供的技术方案中，接入网元接收到的随机接入请求消息中携带有用于请求建立RRC连接的请求信息，接入网元根据该请求消息为UE分配无线资源，并向UE回复包括无线资源配置信息的随机接入回复消息，使得UE可根据上述无线资源配置信息进行配置，基于该无线资源配置信息建立与接入网元之间的RRC连接，并在RRC连接完成后向接入网元回复RRC连接建立完成消息。因此相对于现有技术，本发明实施例在随机接入流程中便可以完成接入网元对无线资源的分配，并将分配完成的无线资源配置信息封装在随机接入回复消息中，使得UE在完成随机接入流程结束便可直接利用该无线资源配置信息与接入网元建立RRC连接，可以优化网络接入流程以解决控制面开销过大的问题，有效提高无线网络资源的使用效率，且整个网络接入流程只涉及UE与接入网之间的信令优化，无需对核心网进行改动。
下面结合图8所示实施例，进一步描述可执行UE接入到核心网元的流程的接入网元，具体请参阅图9，本发明实施例中接入网元另一实施例包括：
本发明实施例中的接入网元可以实现图3所示实施例的流程，所述接入网元包括：
接收单元901，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
发送单元902，用于根据所述接收单元901接收的所述随机接入请求消息向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元903，用于与所述UE基于所述发送单元902发送的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述接收单元901，还用于接收所述UE发送的RRC连接建立完成消息。
进一步地，本发明实施例中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述处理单元903，具体用于与所述UE基于所述SRB配置信息建立SRB。
所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
所述RRC连接建立完成消息携带业务请求信息；
所述处理单元903，还用于在所述接收单元接收所述UE发送的RRC连接建立完成消息之后，基于所述接收单元接收的所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
可选地，在本实施例中：
所述发送单元902，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；
所述处理单元903，还用于与所述UE基于所述发送单元发送的RRC连接重配消息中的DRB配置信息建立DRB。
可选地，在本实施例中，所述无线资源配置信息还包括DRB配置信息；
所述发送单元902，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；
所述处理单元903，还用于与所述UE基于与所述发送单元发送的RRC连接重配消息中的DRB标识对应的所述DRB配置信息建立DRB。
可选地，在本实施例中：
所述接收单元901，还用于在所述处理单元与所述UE基于所述DRB配置信息建立DRB之后，接收所述UE回复的指示消息，所述指示消息用于指示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
可选地，在本实施例中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
可选地，在本实施例中：
所述发送单元902，还用于在所述发送单元向所述UE发送RRC连接重配消息之前，所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送安全模式指令消息，所述安全模式指令消息携带安全模式信息；
所述接收单元901，还用于在所述接收单元接收所述UE回复的指示消息之后，接收所述UE回复的安全模式完成消息。
可选地，在本实施例中，所述RRC连接重配消息还携带有安全模式信息；所述指示消息还携带有安全模式回复信息。
可选地，在本实施例中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元903，具体用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述SRB指示恢复原SRB。
可选地，在本实施例中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
在本发明的技术方案中，考虑到NAS安全配置的更新机制，当NAS安全配置不变期间发起同样的业务时，UE可以基于不同的信令流程接入核心网，下面进一步描述另一种可执行UE接入到核心网元的流程的接入网元，具体请参阅图10，本发明实施例中接入网络的方法另一实施例包括：
本发明实施例中的接入网元可以实现图4所示实施例的流程，所述接入网元包括：
接收单元1001，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
发送单元1002，用于根据所述接收单元1001接收的所述随机接入请求消息向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元1003，用于与所述UE基于所述发送单元1002发送的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述接收单元1001，还用于接收所述UE发送的RRC连接建立完成消息。
进一步地，本发明实施例中，所述随机接入请求消息还携带有NAS安全配置信息；
所述处理单元1003，还用于当NAS安全配置没有变更时，根据所述接收单元接收的随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息；
所述处理单元1003，还用于基于所述处理单元查询到或生成的业务请求信息与核心网网元建立连接；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
所述处理单元1003，具体用于与所述UE基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
可选地，在本实施例中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
可选地，在本实施例中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元1003，具体用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述SRB指示恢复原SRB。
可选地，在本实施例中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
上面从模块化功能实体的角度对本发明实施例中的接入网元进行描述，在本发明的技术方案中，也可以从硬件处理的角度对本发明实施例中的接入网元进行描述，则图8至图10所示实施例中的接收单元可以与接入网元的接收器对应，也可以对应接入网元的收发器，处理单元可以与接入网元的处理器对应，这里处理器可以是一个CPU，或者是ASIC，或者完成实施本发明实施例的一个或多个集成电路，发送单元可以与接入网元的发送器对应，也可以对应接入网元的收发器。具体请参阅图11，其中，接收器1101、发送器1102和处理器 1103可通过总线或其它方式连接。接入网元还可以包括存储器，存储器用于存储指令代码，处理器1103调用存储器的指令代码，控制本发明实施例中的接收器1101和发送器1102执行相应操作。本发明实施例涉及的接入网元可以具有比图11所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
上面对本发明实施例中接入网元进行了描述，下面对本发明实施例中UE进行描述，请参阅图12，本发明实施例中UE一个实施例包括：
本发明实施例中的UE可以实现图5所示实施例的流程，所述UE包括：
发送单元1201，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
接收单元1202，用于接收所述接入网元根据所述发送单元1201发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元1203，用于与所述接入网元基于所述接收单元1202接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述发送单元1201，还用于向所述接入网元发送RRC连接建立完成消息。
为便于理解，下面以一具体应用场景为例，对本实施例中的网络控制器的内部运作流程进行描述：
发送单元1201，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；接收单元1202接收所述接入网元根据所述发送单元1201发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；处理单元1203与所述接入网元基于所述接收单元接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；所述发送单元1201还向所述接入网元发送RRC连接建立完成消息。
在发明实施例提供的技术方案中，UE向接入网元发送的随机接入请求消息中携带有用于请求建立RRC连接的请求信息，使得接入网元可根据该请求 消息为UE分配无线资源，并向UE回复包括无线资源配置信息的随机接入回复消息，UE可根据上述无线资源配置信息进行配置，基于该无线资源配置信息建立与接入网元之间的RRC连接，并在RRC连接完成后向接入网元回复RRC连接建立完成消息。因此相对于现有技术，本发明实施例在随机接入流程中便可以完成接入网元对无线资源的分配，并将分配完成的无线资源配置信息封装在随机接入回复消息中，使得UE在完成随机接入流程结束便可直接利用该无线资源配置信息与接入网元建立RRC连接，可以优化网络接入流程以解决控制面开销过大的问题，有效提高无线网络资源的使用效率，且整个网络接入流程只涉及UE与接入网之间的信令优化，无需对核心网进行改动。
下面结合图12所示实施例，进一步描述可执行UE接入到核心网元的流程的UE，具体请参阅图13，本发明实施例中UE另一实施例包括：
本发明实施例中的UE可以实现图6所示实施例的流程，所述UE包括：
发送单元1301，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
接收单元1302，用于接收所述接入网元根据所述发送单元1301发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元1303，用于与所述接入网元基于所述接收单元1302接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述发送单元1301，还用于向所述接入网元发送RRC连接建立完成消息。
进一步地，本发明实施例中，所述无线资源配置信息包括信令无线承载SRB配置信息；
所述处理单元1303，具体用于与所述接入网元基于所述SRB配置信息建立SRB。
所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
所述RRC连接建立完成消息携带业务请求信息；
所述接收单元1302，还用于在所述发送单元1301向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息， 所述RRC连接重配消息携带数据无线承载DRB配置信息；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述处理单元1303，还用于与所述接入网元基于所述接收单元接收的RRC连接重配消息中的所述DRB配置信息建立DRB。
可选地，在本实施例中，所述无线资源配置信息还包括DRB配置信息；所述RRC连接建立完成消息携带业务请求信息；
所述接收单元1302，还用于在所述发送单元1301向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
所述处理单元1303，还用于与所述接入网元基于与所述接收单元1302接收的RRC连接重配消息中的所述DRB标识对应的所述DRB配置信息建立DRB。
可选地，在本实施例中：
所述发送单元1301，还用于在所述处理单元1303与所述接入网元基于所述DRB配置信息建立DRB之后，向所述接入网元回复指示消息，所述指示消息用于指示RRC连接重配完成；
所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
可选地，在本实施例中，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
可选地，在本实施例中：
所述接收单元1302，还用于在所述接收单元1302接收所述接入网元发送的RRC连接重配消息之前，所述接入网元基于所述发送单元1301发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，接收所述接入网元发送的安全模式指令消息，所述安全模式指令消息携带安全模式信息；
所述发送单元1301，还用于在所述发送单元1301向所述接入网元回复指示消息之后，向所述接入网元回复安全模式完成消息。
可选地，在本实施例中，所述RRC连接重配消息还携带有安全模式信息；所述指示消息还携带有安全模式回复信息。
可选地，在本实施例中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元1303，具体用于与所述接入网元基于所述SRB指示恢复原SRB。
可选地，在本实施例中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
在本发明的技术方案中，考虑到NAS安全配置的更新机制，当NAS安全配置不变期间发起同样的业务时，UE可以基于不同的信令流程接入核心网，下面进一步描述另一种可执行UE接入到核心网元的流程的UE，具体请参阅图14，本发明实施例中UE另一实施例包括：
本发明实施例中的UE可以实现图7所示实施例的流程，所述UE包括：
发送单元1401，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
接收单元1402，用于接收所述接入网元根据所述发送单元1401发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
处理单元1403，用于与所述接入网元基于所述接收单元1402接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
所述发送单元1401，还用于向所述接入网元发送RRC连接建立完成消息。
进一步地，本发明实施例中，所述随机接入请求消息还携带有NAS安全配置信息；
所述随机接入回复消息在所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接之后发送；
所述无线资源配置信息包括SRB配置信息和DRB配置信息；
所述处理单元1403，具体用于与所述接入网元基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
可选地，在本实施例中，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
可选地，在本实施例中，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
所述处理单元1403，具体用于与所述接入网元基于所述SRB指示恢复原SRB。
可选地，在本实施例中，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
上面从模块化功能实体的角度对本发明实施例中的UE进行描述，在本发明的技术方案中，也可以从硬件处理的角度对本发明实施例中的UE进行描述，则图12至图14所示实施例中的接收单元可以与UE的接收器对应，也可以对应UE的收发器，处理单元可以与UE的处理器对应，这里处理器可以是一个CPU，或者是ASIC，或者完成实施本发明实施例的一个或多个集成电路，发送单元可以与UE的发送器对应，也可以对应UE的收发器。具体请参阅图15，其中，发送器1501、接收器1502和处理器1503可通过总线或其它方式连接。UE还可以包括存储器，存储器用于存储指令代码，处理器1503调用存储器的指令代码，控制本发明实施例中的接收器1501和发送器1502执行相应操作。本发明实施例涉及的接入网元可以具有比图15所示出的更多或更少的部件，可以组合两个或更多个部件，或者可以具有不同的部件配置或设置，各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
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。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (55)

  1. 一种接入网元，其特征在于，所述接入网元包括：
    接收单元，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
    发送单元，用于根据所述接收单元接收的所述随机接入请求消息向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
    处理单元，用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
    所述接收单元，还用于接收所述UE发送的RRC连接建立完成消息。
  2. 如权利要求1所述的接入网元，其特征在于，所述无线资源配置信息包括信令无线承载SRB配置信息；
    所述处理单元，具体用于与所述UE基于所述SRB配置信息建立SRB。
  3. 如权利要求2所述的接入网元，其特征在于，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
  4. 如权利要求2或3所述的接入网元，其特征在于，所述RRC连接建立完成消息携带业务请求信息；
    所述处理单元，还用于在所述接收单元接收所述UE发送的RRC连接建立完成消息之后，基于所述接收单元接收的所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
  5. 如权利要求4所述的接入网元，其特征在于，
    所述发送单元，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；
    所述处理单元，还用于与所述UE基于所述发送单元发送的RRC连接重配消息中的DRB配置信息建立DRB。
  6. 如权利要求4所述的接入网元，其特征在于，所述无线资源配置信息 还包括DRB配置信息；
    所述发送单元，还用于在所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；
    所述处理单元，还用于与所述UE基于与所述发送单元发送的RRC连接重配消息中的DRB标识对应的所述DRB配置信息建立DRB。
  7. 如权利要求5或6所述的接入网元，其特征在于，
    所述接收单元，还用于在所述处理单元与所述UE基于所述DRB配置信息建立DRB之后，接收所述UE回复的指示消息，所述指示消息用于指示RRC连接重配完成；
    所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
  8. 如权利要求5至7中任意一项所述的接入网元，其特征在于，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
  9. 如权利要求7或8所述的接入网元，其特征在于，
    所述发送单元，还用于在所述发送单元向所述UE发送RRC连接重配消息之前，所述处理单元基于所述接收单元接收的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，向所述UE发送安全模式指令消息，所述安全模式指令消息携带安全模式信息；
    所述接收单元，还用于在所述接收单元接收所述UE回复的指示消息之后，接收所述UE回复的安全模式完成消息。
  10. 如权利要求7或8所述的接入网元，其特征在于，
    所述RRC连接重配消息还携带有安全模式信息；
    所述指示消息还携带有安全模式回复信息。
  11. 如权利要求1所述的接入网元，其特征在于，所述随机接入请求消息还携带有NAS安全配置信息；
    所述处理单元，还用于当NAS安全配置没有变更时，根据所述接收单元 接收的随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息；
    所述处理单元，还用于基于所述处理单元查询到或生成的业务请求信息与核心网网元建立连接；
    所述无线资源配置信息包括SRB配置信息和DRB配置信息；
    所述处理单元，具体用于与所述UE基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
  12. 如权利要求11所述的接入网元，其特征在于，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
  13. 如权利要求2至12中任意一项所述的接入网元，其特征在于，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
    所述处理单元，具体用于与所述UE基于所述发送单元发送的所述随机接入回复消息中的所述SRB指示恢复原SRB。
  14. 如权利要求1至13中任意一项所述的接入网元，其特征在于，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
  15. 一种UE，其特征在于，所述UE包括：
    发送单元，用于向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
    接收单元，用于接收所述接入网元根据所述发送单元发送的所述随机接入请求消息回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
    处理单元，用于与所述接入网元基于所述接收单元接收的所述随机接入回复消息中的所述无线资源配置信息建立RRC连接；
    所述发送单元，还用于向所述接入网元发送RRC连接建立完成消息。
  16. 如权利要求15所述的UE，其特征在于，所述无线资源配置信息包括信令无线承载SRB配置信息；
    所述处理单元，具体用于与所述接入网元基于所述SRB配置信息建立SRB。
  17. 如权利要求16所述的UE，其特征在于，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
  18. 如权利要求16或17所述的UE，其特征在于，所述RRC连接建立完成消息携带业务请求信息；
    所述接收单元，还用于在所述发送单元向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
    所述处理单元，还用于与所述接入网元基于所述接收单元接收的RRC连接重配消息中的所述DRB配置信息建立DRB。
  19. 如权利要求16或17所述的UE，其特征在于，所述无线资源配置信息还包括DRB配置信息；所述RRC连接建立完成消息携带业务请求信息；
    所述接收单元，还用于在所述发送单元向所述接入网元发送RRC连接建立完成消息之后，接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；所述RRC连接重配消息在所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
    所述处理单元，还用于与所述接入网元基于与所述接收单元接收的RRC连接重配消息中的所述DRB标识对应的所述DRB配置信息建立DRB。
  20. 如权利要求18或19所述的UE，其特征在于，
    所述发送单元，还用于在所述处理单元与所述接入网元基于所述DRB配置信息建立DRB之后，向所述接入网元回复指示消息，所述指示消息用于指示RRC连接重配完成；
    所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
  21. 如权利要求18至20中任意一项所述的UE，其特征在于，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息 中任意一个或多个。
  22. 如权利要求20或21所述的UE，其特征在于，
    所述接收单元，还用于在所述接收单元接收所述接入网元发送的RRC连接重配消息之前，所述接入网元基于所述发送单元发送的RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后，接收所述接入网元发送的安全模式指令消息，所述安全模式指令消息携带安全模式信息；
    所述发送单元，还用于在所述发送单元向所述接入网元回复指示消息之后，向所述接入网元回复安全模式完成消息。
  23. 如权利要求20或21所述的UE，其特征在于，
    所述RRC连接重配消息还携带有安全模式信息；
    所述指示消息还携带有安全模式回复信息。
  24. 如权利要求15所述的UE，其特征在于，所述随机接入请求消息还携带有NAS安全配置信息；
    所述随机接入回复消息在所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接之后发送；
    所述无线资源配置信息包括SRB配置信息和DRB配置信息；
    所述处理单元，具体用于与所述接入网元基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
  25. 如权利要求24所述的UE，其特征在于，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
  26. 如权利要求16至25中任意一项所述的UE，其特征在于，当所述UE和所述接入网元保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
    所述处理单元，具体用于与所述接入网元基于所述SRB指示恢复原SRB。
  27. 如权利要求15至26中任意一项所述的UE，其特征在于，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
  28. 一种接入网络的方法，其特征在于，所述方法包括：
    接入网元接收UE发送的随机接入请求消息，所述随机接入请求消息携带 用于请求建立RRC连接的请求信息；
    所述接入网元向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
    所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接；
    所述接入网元接收所述UE发送的RRC连接建立完成消息。
  29. 如权利要求28所述的接入网络的方法，其特征在于，所述无线资源配置信息包括信令无线承载SRB配置信息；
    所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接包括：
    所述接入网元与所述UE基于所述SRB配置信息建立SRB。
  30. 如权利要求29所述的接入网络的方法，其特征在于，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY配置信息中任意一个或多个。
  31. 如权利要求29或30所述的接入网络的方法，其特征在于，所述RRC连接建立完成消息携带业务请求信息；
    在所述接入网元接收所述UE发送的RRC连接建立完成消息之后还包括：
    所述接入网元基于所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接。
  32. 如权利要求31所述的接入网络的方法，其特征在于，
    在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
    所述接入网元向所述UE发送RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；
    所述接入网元与所述UE基于所述DRB配置信息建立DRB。
  33. 如权利要求31所述的接入网络的方法，其特征在于，所述无线资源配置信息还包括DRB配置信息；
    在所述接入网元基于所述RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
    所述接入网元向所述UE发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关 系；
    所述接入网元与所述UE基于与所述DRB标识对应的所述DRB配置信息建立DRB。
  34. 如权利要求32或33所述的接入网络的方法，其特征在于，在所述接入网元与所述UE基于所述DRB配置信息建立DRB之后还包括：
    所述接入网元接收所述UE回复的指示消息，所述指示消息用于指示RRC连接重配完成；
    所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
  35. 如权利要求32至34中任意一项所述的接入网络的方法，其特征在于，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
  36. 如权利要求34或35所述的接入网络的方法，其特征在于，
    在所述接入网元向所述UE发送RRC连接重配消息之前，所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
    所述接入网元向所述UE发送安全模式指令消息，所述安全模式指令消息携带安全模式信息；
    在所述接入网元接收所述UE回复的指示消息之后还包括：
    所述接入网元接收所述UE回复的安全模式完成消息。
  37. 如权利要求34或35所述的接入网络的方法，其特征在于，
    所述RRC连接重配消息还携带有安全模式信息；
    所述指示消息还携带有安全模式回复信息。
  38. 如权利要求28所述的接入网络的方法，其特征在于，所述随机接入请求消息还携带有NAS安全配置信息；
    在所述接入网元向所述UE回应随机接入回复消息之前还包括：
    当NAS安全配置没有变更时，所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接；
    所述无线资源配置信息包括SRB配置信息和DRB配置信息；
    则所述接入网元与所述UE基于所述无线资源配置信息建立RRC连接包括：
    所述接入网元与所述UE基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
  39. 如权利要求38所述的接入网络的方法，其特征在于，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
  40. 如权利要求29至39中任意一项所述的接入网络的方法，其特征在于，当所述接入网元和所述UE保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
    则所述接入网元与所述UE基于所述SRB配置信息建立SRB包括：
    所述接入网元与所述UE基于所述SRB指示恢复原SRB。
  41. 如权利要求28至40中任意一项所述的接入网络的方法，其特征在于，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
  42. 一种接入网络的方法，其特征在于，所述方法包括：
    UE向接入网元发送随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；
    所述UE接收所述接入网元回复的随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；
    所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接；
    所述UE向所述接入网元发送RRC连接建立完成消息。
  43. 如权利要求42所述的接入网络的方法，其特征在于，所述无线资源配置信息包括信令无线承载SRB配置信息；
    所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接包括：
    所述UE与所述接入网元基于所述SRB配置信息建立SRB。
  44. 如权利要求43所述的接入网络的方法，其特征在于，所述SRB配置信息包括逻辑信道配置信息、媒体接入控制层MAC配置信息和物理层PHY 配置信息中任意一个或多个。
  45. 如权利要求43或44所述的接入网络的方法，其特征在于，所述RRC连接建立完成消息携带业务请求信息；
    在所述UE向所述接入网元发送RRC连接建立完成消息之后还包括：
    所述UE接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带数据无线承载DRB配置信息；所述RRC连接重配消息在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
    所述UE与所述接入网元基于所述DRB配置信息建立DRB。
  46. 如权利要求43或44所述的接入网络的方法，其特征在于，所述无线资源配置信息还包括DRB配置信息；所述RRC连接建立完成消息携带业务请求信息；
    在所述UE向所述接入网元发送RRC连接建立完成消息之后还包括：
    所述UE接收所述接入网元发送的RRC连接重配消息，所述RRC连接重配消息携带DRB标识，所述DRB标识与所述DRB配置信息之间建立有对应关系；所述RRC连接重配消息在所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后发送；
    所述UE与所述接入网元基于与所述DRB标识对应的所述DRB配置信息建立DRB。
  47. 如权利要求45或46所述的接入网络的方法，其特征在于，在所述UE与所述接入网元基于所述DRB配置信息建立DRB之后还包括：
    所述UE向所述接入网元回复指示消息，所述指示消息用于指示RRC连接重配完成；
    所述指示消息包括RRC连接重配完成消息或用于指示RRC连接重配完成的MAC信令。
  48. 如权利要求45至47中任意一项所述的接入网络的方法，其特征在于，所述DRB配置信息包括承载配置信息、逻辑信道配置、MAC配置信息和PHY配置信息中任意一个或多个。
  49. 如权利要求47或48所述的接入网络的方法，其特征在于，
    在所述UE接收所述接入网元发送的RRC连接重配消息之前，所述接入网元基于RRC连接建立完成消息中的业务请求信息与核心网网元建立连接之后还包括：
    所述UE接收所述接入网元发送的安全模式指令消息，所述安全模式指令消息携带安全模式信息；
    在所述UE向所述接入网元回复指示消息之后还包括：
    所述UE向所述接入网元回复安全模式完成消息。
  50. 如权利要求47或48所述的接入网络的方法，其特征在于，
    所述RRC连接重配消息还携带有安全模式信息；
    所述指示消息还携带有安全模式回复信息。
  51. 如权利要求42所述的接入网络的方法，其特征在于，所述随机接入请求消息还携带有NAS安全配置信息；
    当NAS安全配置没有变更时，所述随机接入回复消息在所述接入网元根据所述随机接入请求消息查询保存在本地的业务请求信息或生成业务请求信息，并基于所述业务请求信息与核心网网元建立连接之后发送；
    所述无线资源配置信息包括SRB配置信息和DRB配置信息；
    则所述UE与所述接入网元基于所述无线资源配置信息建立RRC连接包括：
    所述UE与所述接入网元基于所述SRB配置信息建立SRB和基于所述DRB配置信息建立DRB。
  52. 如权利要求51所述的接入网络的方法，其特征在于，所述NAS安全配置信息包括NAS指示，所述NAS指示用于指示所述NAS安全配置是否发生变更。
  53. 如权利要求43至52中任意一项所述的接入网络的方法，其特征在于，当所述UE和所述接入网元保存有之前接入网络的原SRB配置信息时，所述SRB配置信息包括SRB指示，所述SRB指示用于指示所述UE恢复之前的原SRB；
    则所述UE与所述接入网元基于所述SRB配置信息建立SRB包括：
    所述UE与所述接入网元基于所述SRB指示恢复原SRB。
  54. 如权利要求42至53中任意一项所述的接入网络的方法，其特征在于，所述请求信息包括用于指示RRC连接建立原因的原因值指示。
  55. 一种接入网络的系统，其特征在于，包括：
    接入网元，用于接收UE发送的随机接入请求消息，所述随机接入请求消息携带用于请求建立RRC连接的请求信息；向所述UE回复随机接入回复消息，所述随机接入回复消息包括所述接入网元为所述UE分配的无线资源配置信息；与所述UE基于所述无线资源配置信息建立RRC连接；接收所述UE发送的RRC连接建立完成消息。
    所述UE，用于向所述接入网元发送所述随机接入请求消息；接收所述接入网元回复的所述随机接入回复消息；与所述接入网元基于所述无线资源配置信息建立RRC连接；向所述接入网元发送所述RRC连接建立完成消息。
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