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WO2017121199A1 - 一种信息传输方法、装置、系统和计算机存储介质 - Google Patents

一种信息传输方法、装置、系统和计算机存储介质 Download PDF

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Publication number
WO2017121199A1
WO2017121199A1 PCT/CN2016/107689 CN2016107689W WO2017121199A1 WO 2017121199 A1 WO2017121199 A1 WO 2017121199A1 CN 2016107689 W CN2016107689 W CN 2016107689W WO 2017121199 A1 WO2017121199 A1 WO 2017121199A1
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WO
WIPO (PCT)
Prior art keywords
base station
mme
support capability
iot support
capability
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/107689
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English (en)
French (fr)
Inventor
沙秀斌
高音
余媛芳
戴谦
戴博
艾建勋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2017121199A1 publication Critical patent/WO2017121199A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, system, and computer storage medium.
  • the fifth generation mobile communication technology (5th Generation, referred to as: 5G) has become The trend of future network development.
  • Machine to Machine (M2M) communication (Machine Type Communication, referred to as: MTC) as one of the important scenarios and technical means of 5G system will become an important application field of wireless communication in the future.
  • NB-IoT NarowBand-Internet of Things
  • the NB-IoT low-cost terminal equipment User Equipment, UE for short
  • NB-IoT introduces different uplink narrowband access capabilities and optimized data transmission schemes for UE low-cost and small data transmission characteristics.
  • the optimized data transmission scheme includes optimization scheme based on user plane and control plane transmission.
  • the base station does not acquire the narrowband access capability of the UE, and the standard scheme based on the support capabilities of the user plane and the control plane transmission optimization scheme, and the various capabilities of the foregoing UE play a role in the wireless connection application of the MTC system.
  • the crucial role therefore, how to pass the UE's narrowband access capability in the MTC, as well as the support capabilities based on the user plane and control plane transmission optimization scheme, has become an urgent problem to be solved.
  • the embodiment of the present invention provides an information transmitting party. Methods, devices, systems, and computer storage media.
  • an embodiment of the present invention provides an information transmission method, including:
  • the first base station acquires a narrowband IoT NB-IoT support capability of the user equipment UE, where the NB-IoT support capability of the UE includes an uplink narrowband access capability of the UE, and an optimization scheme based on user plane and control plane transmission One or more of the support capabilities;
  • the first base station sends the NB-IoT support capability of the UE to the first mobility management entity MME, to indicate that the first MME stores the NB-IoT support capability of the UE, and indicates that the first MME is
  • the UE requests to re-establish an RRC connection or a base station that is accessed by the UE, the NB-IoT support capability of the UE is sent to the base station currently accessed by the UE, and the base station currently accessed by the UE is in the Said first MME.
  • the first base station acquires the NB-IoT support capability of the UE, including:
  • the first base station acquires the NB-IoT support capability of the UE by establishing a radio resource control RRC connection with the UE.
  • the first base station acquires the NB-IoT support capability of the UE by establishing an RRC connection with the UE, including:
  • the first base station When the UE performs the initial attach, or the NB-IoT support capability of the UE changes, or the first base station allocates a radio resource to the UE, and the first base station does not acquire the UE When the NB-IoT supports the capability, the first base station sends a UE capability query message to the UE;
  • the first base station receives the UE capability information indication message sent by the UE, and the UE capability information indication message includes the NB-IoT support capability of the UE.
  • the method when the UE requests to re-establish an RRC connection, or when the UE switches from the second base station under the first MME to the first base station, the method also includes:
  • the first base station acquires an NB-IoT support capability of the UE from the first MME by re-establishing an RRC connection with the UE;
  • the first base station acquires the NB-IoT support capability of the UE from the first MME, include:
  • the first base station receives an initial context setup request message sent by the first MME, where the initial context setup request message includes an NB-IoT support capability of the UE.
  • the method when the UE is handed over from the third base station in the second MME to the first base station, the method further includes:
  • the first base station receives a handover command sent by the first MME, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME.
  • the handover command includes the NB-IoT support capability of the UE and the target address of the handover, where the target address is the first base station under the first MME;
  • the first base station sends the NB-IoT support capability of the UE to the first MME, to indicate that the first MME stores the NB-IoT support capability of the UE.
  • the method further includes:
  • the first base station indicates, by using the measurement information, that the fourth base station acquires a handover request message that includes the NB-IoT support capability of the UE, where the handover request message is used to indicate that the second base station is configured according to the UE
  • the NB-IoT support capability allocates radio resources to the UE.
  • the first base station and the fourth base station are both under the first MME, and the first base station and The fourth base station is connected by using an X2 interface, and the first base station, by using the measurement information, the fourth base station, to obtain a handover request message that includes the NB-IoT support capability of the UE, including:
  • An X2 interface is not disposed between the first base station and the fourth base station; the first base station indicates, by using the measurement information, that the fourth base station acquires a handover request message including an NB-IoT support capability of the UE.
  • the first base station sends the handover request message to the first MME, where the handover request message is used to instruct the first MME to forward the handover request message to the fourth base station, where the first The base station and the fourth base station are both under the first MME; or
  • the first base station sends the handover request message to the first MME, where the handover request message is used to instruct the first MME to forward the handover request message to the second MME, so that the second MME
  • the fourth base station forwards the handover request message, where the fourth base station is under the second MME.
  • the first base station acquires context information of the UE by establishing an RRC connection with the UE, where the context information of the UE includes a bearer information context and an access layer.
  • the method further includes:
  • the first base station determines to suspend an established RRC connection
  • the first base station sends the context information of the UE to the first MME, where context information of the UE is used to indicate that the first MME sends the optimization scheme based on the user plane transmission to the UE.
  • the base station accessed by the UE sends the context information of the UE;
  • the first base station suspends an RRC connection established with the UE.
  • the method further includes:
  • the first base station stores the context information of the UE, sending an RRC connection recovery complete message to the UE;
  • the first base station sends the NB-IoT support capability of the UE to the first MME,
  • the NB-IoT support capability of each cell in the first base station is carried, and the NB-IoT support capability of each cell in the first base station includes uplink narrowband access capability of each cell in the first base station, And support capabilities based on user plane and control plane transport optimization schemes;
  • the handover command further includes an NB-IoT support capability of each cell in the third base station, and an NB-IoT support capability of each cell in the third base station includes an uplink of each cell in the third base station.
  • Narrowband access capability and support capabilities based on user plane and control plane transport optimization schemes.
  • the first base station and the fifth base station are connected by using an X2 interface, where the method further includes:
  • the first base station sends the NB-IoT support capability of each cell in the first base station to the fifth base station by using the X2 interface, where the NB-IoT support capability of each cell in the first base station includes The uplink narrowband access capability of each cell under the first base station, and the support capability based on the user plane and control plane transmission optimization scheme;
  • the first base station receives the NB-IoT support capability of each cell in the fifth base station that is sent by the fifth base station by using the X2 interface, and the NB-IoT support capability of each cell in the fifth base station includes: The uplink narrowband access capability of each cell under the fifth base station, and the support capability based on the user plane and control plane transmission optimization scheme.
  • the method further includes:
  • the first base station determines, according to the type of the PRACH, that the uplink narrowband access capability of the UE is single frequency access or multi-frequency access.
  • an embodiment of the present invention provides an information transmission method, including:
  • the first mobility management entity MME receives the NB-IoT support capability of the user equipment UE sent by the first base station, where the NB-IoT support capability of the UE is acquired by the first base station, and the NB-IoT support capability of the UE Including one or more of uplink narrowband access capabilities of the UE and support capabilities based on user plane and control plane transmission optimization schemes;
  • the first MME stores an NB-IoT support capability of the UE
  • the first MME supports the NB-IoT of the UE when the UE requests to establish an RRC connection through the second base station or the UE switches from the first base station to the second base station under the first MME.
  • the capability is sent to the second base station.
  • the first MME requests the UE to establish an RRC connection by using the second base station, or the UE switches from the first base station to the first MME. And sending, by the second base station, the NB-IoT support capability of the UE to the second base station, including:
  • the first MME sends an initial context setup request message to the second base station, where the initial context setup request message includes the NB-IoT support capability of the UE.
  • the method when the UE is handed over from the third base station in the second MME to the first base station, the method further includes:
  • the first MME sends a handover command to the first base station, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME, where
  • the handover command includes an NB-IoT support capability of the UE and a target address of the handover, where the target address is a first base station under the first MME;
  • the first MME receives and stores the NB-IoT support capability of the UE sent by the first base station, and the NB-IoT support capability of the UE is obtained by the first base station by demodulating the handover command.
  • the method further includes:
  • the first MME sends an initial context setup request message to the first base station, and the initial context setup request message does not include the NB-IoT support capability of the UE;
  • the first MME receives and stores the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is that the first base station sends a UE capability query message to the UE. Obtained, and the NB-IoT support capability of the UE is used by the first base station to allocate radio resources to the UE.
  • the method further includes:
  • the first MME receives the handover request sent by the first base station, where the handover request is sent by the first base station to the first MME after receiving the measurement information sent by the UE, and the measurement information is used by the first MME.
  • the target base station indicating the handover of the UE is a fourth base station;
  • the first MME forwards the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or
  • the first MME sends the handover request to the second MME, where the handover request is used to instruct the second MME to forward the handover request message to the fourth base station, where the fourth base station is in the Under the second MME.
  • the first base station acquires context information of the UE by establishing an RRC connection with the UE, where context information of the UE includes a bearer information context and an access layer.
  • context information of the UE includes a bearer information context and an access layer.
  • One or more of the AS security contexts; the method further includes:
  • the first MME receives the context information of the UE that is sent by the first base station, and the context information of the UE is sent to the first MME before the first base station suspends the established RRC connection;
  • the first MME sends the context information of the UE to the base station accessed by the UE.
  • the method further includes:
  • the UE context request message sent by the first base station receives, by the first MME, the UE context request message sent by the first base station, where the UE context request message is that the first base station receives the RRC connection recovery request message sent by the UE, and the first base station does not store The context information of the UE is sent to the first MME;
  • the first MME sends a UE context response message to the first base station, where the UE context response message is used to instruct the first base station to send an RRC connection recovery complete message to the UE.
  • an embodiment of the present invention provides an information transmission apparatus, which is disposed in a first base station, where the information transmission apparatus includes: a receiving module and a sending module;
  • the receiving module and the sending module are configured to acquire a narrowband IoT NB-IoT support capability of the user equipment UE, where the NB-IoT support capability of the UE includes an uplink narrowband access capability of the UE, And one or more of the support capabilities based on user plane and control plane transmission optimization schemes;
  • the sending module is further configured to send the NB-IoT support capability of the UE to the first mobility management entity MME, to instruct the first MME to store the NB-IoT support capability of the UE, and indicate the An MME sends an NB-IoT support capability of the UE to a base station currently accessed by the UE, where the UE is currently accessing, when the UE requests to re-establish an RRC connection or a base station that is accessed by the UE.
  • the base station is under the first MME.
  • the receiving module and the sending module are configured to obtain a network NB-IoT support capability of the UE by establishing an RRC connection with the UE.
  • the receiving module and the sending module are configured to obtain the narrowband IoT NB-IoT support capability of the UE by establishing an RRC connection with the UE, including:
  • the sending module is configured to send a UE capability query message to the UE;
  • the receiving module is configured to receive a UE capability information indication message sent by the UE, where the UE capability information indication message includes an NB-IoT support capability of the UE.
  • the receiving module and the sending module are further configured to acquire an NB-IoT support capability of the UE from the first MME by re-establishing an RRC connection with the UE;
  • the receiving module and the sending module are configured to acquire the NB-IoT support capability of the UE from the first MME, including:
  • the sending module is further configured to send an initial UE message to the first MME, where the initial UE message includes service request information;
  • the receiving module is further configured to receive an initial context setup request message sent by the first MME, where the initial context setup request message includes an NB-IoT support capability of the UE.
  • the receiving module is further configured to receive a handover command sent by the first MME, where the handover command is sent by the third base station to the second MME, and is forwarded by the second MME to the first MME, wherein the handover command includes an NB-IoT support capability of the UE and a target address of the handover, where the target address is a first base station under the first MME;
  • the information transmission apparatus further includes: a demodulation module configured to demodulate the handover command, and acquire an NB-IoT support capability of the UE in the handover command;
  • the sending module is further configured to send the NB-IoT support capability of the UE to the first MME, to indicate that the first MME stores the NB-IoT support capability of the UE.
  • the receiving module is further configured to receive measurement information sent by the UE, where the measurement information indicates to the first base station that the target base station that is switched by the UE is Fourth base station;
  • the sending module is further configured to: use the measurement information to instruct the fourth base station to acquire a handover request message that includes an NB-IoT support capability of the UE, where the handover request message is used to indicate the second base station Allocating radio resources to the UE according to the NB-IoT support capability of the UE.
  • the first base station and the fourth base station are both under the first MME, and the first base station and The fourth base stations are connected through an X2 interface;
  • the sending module is configured to use the measurement information to indicate that the fourth base station acquires a handover request message that includes the NB-IoT support capability of the UE, where the sending, by the X2 interface, is sent to the fourth base station by using the X2 interface.
  • the handover request message including the NB-IoT support capability of the UE.
  • an X2 interface is not disposed between the first base station and the fourth base station;
  • the sending module is configured to: by using the measurement information, to indicate that the fourth base station acquires a handover request message that includes the NB-IoT support capability of the UE, where the sending, by the sending, the handover request message is sent to the first MME.
  • the handover request message is used to indicate that the first MME forwards the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or And sending, by the first MME, the handover request message, where the handover request message is used to indicate that the first MME forwards the handover request message to a second MME, so that the second MME is to the fourth MME.
  • the base station forwards the handover request message, where the fourth base station is under the second MME.
  • the first base station acquires context information of the UE by establishing an RRC connection with the UE, where the context information of the UE includes a bearer information context and an access layer.
  • the information transmission apparatus further includes: a determining module and a suspending module;
  • the determining module is configured to determine to suspend an established RRC connection
  • the sending module is further configured to send the context information of the UE to the first MME, where the context information of the UE is configured to indicate that the first MME initiates an optimization scheme based on user plane transmission when the UE initiates Transmitting, to the base station accessed by the UE, context information of the UE;
  • the suspension module is configured to suspend an RRC connection established with the UE.
  • the receiving module is further configured to receive after the suspended module suspends an RRC connection established with the UE The RRC connection recovery request message sent by the UE; the information transmission apparatus further includes:
  • a determining module configured to determine whether context information of the UE is stored in the first base station
  • the sending module is further configured to: when the determining module determines that the context information of the UE is stored in the first base station, send an RRC connection recovery complete message to the UE;
  • the sending module is further configured to: when the determining module determines that the first base station is not stored And when the context information of the UE is stored, sending a UE context request message to the first MME;
  • the receiving module is further configured to receive a UE context response message returned by the first MME;
  • the sending module is further configured to send an RRC connection recovery complete message to the UE.
  • the NB-IoT support capability of the UE sent by the sending module to the first MME is further carried
  • the NB-IoT support capability of each cell in the first base station, the NB-IoT support capability of each cell in the first base station includes uplink narrowband access capability of each cell in the first base station, and a user-based Support capabilities for surface and control plane transmission optimization schemes;
  • the handover command further includes an NB-IoT support capability of each cell in the third base station, and an NB-IoT support capability of each cell in the third base station includes an uplink of each cell in the third base station.
  • Narrowband access capability and support capabilities based on user plane and control plane transport optimization schemes.
  • the first base station is connected to the fifth base station by using an X2 interface
  • the receiving module is further configured to send, by using the X2 interface, the fifth base station
  • the NB-IoT support capability of each cell in the first base station, the NB-IoT support capability of each cell in the first base station includes uplink narrowband access capability of each cell in the first base station, and Support capabilities for user plane and control plane transport optimization solutions;
  • the receiving module is further configured to receive an NB-IoT support capability of each cell in the fifth base station that is sent by the fifth base station by using the X2 interface, and an NB-IoT of each cell in the fifth base station
  • the support capability includes uplink narrowband access capability of each cell under the fifth base station, and support capability based on user plane and control plane transmission optimization scheme.
  • the receiving module is further configured to receive an uplink narrowband access capability of the UE that is sent by the UE by using a physical random access channel (PRACH);
  • the device also includes:
  • the determining module is configured to determine, according to the type of the PRACH, that the uplink narrowband access capability of the UE is single frequency access or multi-frequency access.
  • an embodiment of the present invention provides an information transmission apparatus, which is configured to be in a first mobility.
  • the information transmission device includes:
  • the receiving module is configured to receive the NB-IoT support capability of the user equipment UE sent by the first base station, where the NB-IoT support capability of the UE is acquired by the first base station, and the NB-IoT support capability of the UE includes Determining one or more of the uplink narrowband access capability of the UE and the support capability based on the user plane and the control plane transmission optimization scheme;
  • the storage module is configured to store an NB-IoT support capability of the UE
  • the sending module is configured to: when the UE requests to establish an RRC connection by using the second base station, or when the UE switches from the first base station to the second base station under the first MME, the NB of the UE is used.
  • the IoT support capability is sent to the second base station.
  • the first MME requests the UE to establish an RRC connection by using the second base station, or the UE switches from the first base station to the first MME.
  • Second base station
  • the receiving module is further configured to receive an initial UE message sent by the second base station, where the initial UE message includes service request information;
  • the sending module is further configured to send an initial context setup request message to the second base station, where the initial context setup request message includes an NB-IoT support capability of the UE.
  • the sending module is further configured to send a handover command to the first base station, where the handover command is sent by the third base station to the second MME, and is forwarded by the second MME to the first MME.
  • the handover command includes an NB-IoT support capability of the UE and a target address of the handover, where the target address is a first base station under the first MME;
  • the receiving module is further configured to receive the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is obtained by demodulating the handover command by the first base station ;
  • the storage module is further configured to store an NB-IoT support capability of the UE received by the receiving module.
  • the sending module is further configured to send an initial context setup request message to the first base station, and the initial context setup request message does not include the NB-IoT support capability of the UE;
  • the receiving module is further configured to receive the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is that the first base station sends a UE capability query to the UE Obtained by the message, and the NB-IoT support capability of the UE is used by the first base station to allocate radio resources to the UE;
  • the storage module is further configured to store an NB-IoT support capability of the UE received by the receiving module.
  • the receiving module is further configured to receive a handover request sent by the first base station, where the handover request is sent by the first base station to the UE
  • the measurement information is sent to the first MME, and the measurement information is used to indicate that the target base station that the UE switches is the fourth base station;
  • the sending module is further configured to forward the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or
  • the sending module is further configured to send the handover request to the second MME, where the handover request is used to instruct the second MME to forward the handover request message to the fourth base station, where the fourth base station Under the second MME.
  • the first base station acquires context information of the UE by establishing an RRC connection with the UE, where the context information of the UE includes a bearer information context and an access layer.
  • the context information of the UE includes a bearer information context and an access layer.
  • the receiving module is further configured to receive the context information of the UE sent by the first base station, where the context information of the UE is sent to the first MME before the first base station suspends the established RRC connection. ;
  • the sending module is further configured to: when the UE initiates an optimization scheme based on the user plane transmission, send the context information of the UE to the base station accessed by the UE.
  • the receiving module is further configured to receive, according to the context information of the UE sent by the first base station, After receiving the UE context request message sent by the first base station, the UE context request message is that the first base station receives the RRC connection recovery request message sent by the UE, and the UE is not stored in the first base station.
  • the context information is sent to the first MME;
  • the sending module is further configured to send a UE context response message to the first base station, where the UE context response message is used to instruct the first base station to send an RRC connection recovery complete message to the UE.
  • an embodiment of the present invention provides an information delivery system, including: a first mobility management entity MME, and a first base station and a second base station under the first MME, a second MME, and the second MME a third base station and a fourth base station, where the first MME is connected to the second MME;
  • the first base station, the second base station, the third base station, and the fourth base station are all provided with the information transmission apparatus according to any one of the foregoing third aspects, the first MME and The information transmission device according to any one of the above fourth aspects is provided in the second MME.
  • an embodiment of the present invention provides a computer storage medium, where the computer storage medium includes a set of instructions, when the instruction is executed, causing at least one processor to execute the information transmission method on the base station side, or execute the MME Side information transmission method.
  • the first base station acquires the NB-IoT support capability of the UE by establishing an RRC connection with the UE, and the NB-IoT support capability of the UE may include the uplink of the UE. a narrowband access capability, and one or more of the support capabilities based on the user plane and the control plane transmission optimization scheme, and the first base station instructs the NB-IoT support capability of the acquired UE by transmitting the acquired UE to the first MME
  • An MME stores the NB-IoT support capability of the UE, thereby providing services for subsequent services.
  • the NB-IoT support capability of the UE is designed to improve the practicality of the wireless connection service in the NB-IoT. Sex.
  • FIG. 1 is a flowchart of an information transmission method according to an embodiment of the present invention
  • FIG. 2 is a flow chart of signaling interaction for establishing an RRC connection in the information transmission method provided by the embodiment shown in FIG. 1;
  • FIG. 3 is a flowchart of another information transmission method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 7 is a signaling flowchart of an information transmission method according to an embodiment of the present invention.
  • FIG. 8 is a signaling flowchart of another information transmission method according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 13 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 14 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 15 is a signaling flowchart of still another information transmission method according to an embodiment of the present invention.
  • FIG. 16 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another information transmission method according to an embodiment of the present disclosure.
  • FIG. 18 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • FIG. 19 is a schematic structural diagram of an information delivery system according to an embodiment of the present invention.
  • the NB-IoT introduces different uplink narrowband access capabilities for the low-cost characteristics of the UE, including single-frequency access (Single-Tone) and multi-frequency access (Multi-Tone).
  • Single-Tone single-frequency access
  • Multi-Tone multi-frequency access
  • the base station can only allocate uplink channel resources of the corresponding narrowband bandwidth when allocating uplink resources on the uplink; in addition, considering that the 200 kHz spectrum bandwidth of NB-IoT is relatively small, each uplink frequency point carries two different types simultaneously.
  • NB-IoT introduces an optimized data transmission scheme for the characteristics of small data volume; among them, the basic idea of the optimization scheme based on control plane transmission is: package the data packet into a non-access stratum (Non-Access Stratum) A Packet Data Unit (PDU) is a NAS PDU, and the NAS PDU is attached to the control plane signaling.
  • PDU Packet Data Unit
  • the basic idea of the optimization scheme based on the user plane transmission is that the terminal and the base station use the data radio bearer. (Data Radio Bearer, abbreviated as: DRB) transmits data.
  • DRB Data Radio Bearer
  • both parties save the bearer information context, the access layer (Access Stratum, abbreviated as: AS) security context, etc., and when the data is sent again, the two parties hang. - Activate the process to quickly restore the use of DRB bearers.
  • AS Access Stratum
  • LTE Long Term Evolution
  • TA Tracking Area
  • the information transmission method involves three network elements: a base station, a UE, and an MME.
  • the base station in the embodiments of the present invention is usually an LTE system.
  • eNB evolved Node B
  • the following specific embodiments of the present invention may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.
  • the first base station acquires NB-IoT support capability of the UE, where the NB-IoT support capability of the UE includes uplink narrowband access capability of the UE, and user plane and control.
  • the first base station sends the NB-IoT support capability of the UE to the first MME, to instruct the first MME to store the NB-IoT of the UE Supporting the capability, and instructing the first MME to send the NB-IoT support capability of the UE to the base station currently accessed by the UE when the UE requests to re-establish an RRC connection or a base station change of the UE access
  • the first MME receives the NB-IoT support capability of the UE sent by the first base station, and the first MME stores the NB-IoT of the UE.
  • the first MME when the UE requests to establish an RRC connection by using the second base station, or when the UE switches from the first base station to the second base station under the first MME, the NB of the UE is used.
  • the IoT support capability is sent to the second base station.
  • FIG. 1 is a flowchart of an information transmission method according to an embodiment of the present invention.
  • the information transmission method provided in this embodiment is applicable to the case where the capability information is transmitted in the NB-IoT, and the method may be implemented by an information transmission device, which is implemented by a combination of hardware and software, and the device may be integrated in The processor of the base station is used by the processor for calling.
  • the method in this embodiment may include:
  • the first base station acquires the NB-IoT support capability of the UE by establishing an RRC connection with the UE, where the NB-IoT support capability of the UE includes the uplink narrowband access capability of the UE, and the support capability based on the user plane and the control plane transmission optimization scheme. One or more of them.
  • the reason for triggering the first base station to establish a Radio Resource Control (RRC) connection with the UE includes, for example, the initial attach by the UE, or the change of the NB-IoT support capability of the UE, or the first A base station allocates radio resources to the UE, and the first base station does not acquire the NB-IoT support capability of the UE, and in the above several cases, the specific manner in which the first base station acquires the NB-IoT support capability of the UE is as shown in FIG. 2
  • a signaling interaction flowchart for establishing an RRC connection that is, S110 specifically includes:
  • the first base station receives an RRC connection request message sent by the UE.
  • the first base station sends an RRC connection setup message to the UE.
  • the first base station receives an RRC connection setup complete message sent by the UE.
  • the first base station sends an initial UE message to the first MME, where the initial UE message includes an attach request information, a Tracking Area Update (TAU) request information, or service request information.
  • TAU Tracking Area Update
  • the first base station receives an initial context setup request message sent by the first MME, where the initial context setup request message includes attach accept information, TAU accept information, or NB-IoT support capability that does not include the UE.
  • the initial message of the S4 includes the attach request information
  • the initial context setup request message of the S5 includes the attach and receive information. If the triggering cause of the RRC connection between the first base station and the UE is that the NB-IoT support capability of the UE is changed, the initial message of the S4 includes the TAU request information, and the initial context setup request message of the S5 includes the TAU accepting information.
  • the initial message of the S4 includes the service request information, and the initial context setup request message of the S5 does not include the NB of the UE. -IoT support capabilities.
  • the first base station sends a UE capability query message to the UE.
  • the first base station receives the UE capability information indication message sent by the UE, where the UE capability information indication message includes the NB-IoT support capability of the UE.
  • the NB-IoT support capability in this embodiment is included in a UE Radio Capability (UE) message in the UE capability information indication message.
  • UE Radio Capability
  • S1 to S7 is a general procedure for establishing an RRC connection.
  • the NB-IoT support capability of the UE needs to be sent to the current by re-executing the process.
  • the first base station sends the NB-IoT support capability of the UE to the first MME, to indicate that the first MME stores the NB-IoT support capability of the UE, and instructs the first MME to request to re-establish the RRC connection or the UE access base station in the UE.
  • the NB-IoT support capability of the UE is sent to the base station currently accessed by the UE, and the base station currently accessed by the UE is under the first MME.
  • the first base station has the NB-IoT support capability of the UE, and then the first base station uses the NB-IoT of the UE.
  • the support capability is sent to the first MME, so that the first MME stores the NB-IoT support capability of the UE in the first MME to provide services for subsequent wireless services. For example, when the UE requests to re-establish an RRC connection, or the base station accessed by the UE changes, the first MME may send the NB-IoT support capability of the UE to the base station currently accessed by the UE.
  • the first MMEs in the embodiments of the present invention are all MMEs accessed by the first base station, and the first base station sends the NB-IoT support capability of the UE to the first MME.
  • the NB-IoT support capability of the UE is stored and used in subsequent wireless services.
  • the first base station acquires the NB-IoT support capability of the UE by establishing an RRC connection with the UE, and the NB-IoT support capability of the UE may include the uplink narrowband access capability of the UE, and the user-based One or more of the support capabilities of the plane and control plane transmission optimization scheme, and the first base station instructs the first MME to store the NB of the UE by transmitting the acquired NB-IoT support capability of the UE to the first MME.
  • the IoT supports the capability to provide services for subsequent services. This embodiment improves the practicality of the wireless connection service in the NB-IoT by reasonably designing the transmission mode of the NB-IoT support capability of the UE.
  • the NB-IoT support capability of the UE is already stored in the first MME, and the NB-IoT support capability of the UE may be applied to the subsequent wireless service.
  • the following embodiments are based on the embodiment shown in FIG. 1 .
  • the first base station side is used as the execution entity, and the specific execution manner of the subsequent service is described, and the implementation shown in FIG. 1 may be assumed.
  • the RRC connection with the UE is not the first base station, but other base stations, for example, the base station under the first MME, and may be, for example, a base station under other MMEs.
  • FIG. 3 is a flowchart of another information transmission method according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the RRC connection established between the UE and the first base station in the example shown in FIG. 1 is disconnected; or the UE establishes an RRC connection with the second base station in the first MME, and the UE needs to switch.
  • the method provided in this embodiment further includes:
  • the first base station acquires an NB-IoT support capability of the UE from the first MME by re-establishing an RRC connection with the UE.
  • the specific manner for the first base station to obtain the NB-IoT support capability of the UE from the first MME may refer to the flowchart shown in FIG. 2, and also needs to perform S1 to S5 in FIG. 2, and FIG. 2 above.
  • the initial process of the present embodiment S4 includes the service request information.
  • the initial context setup request message received by the first base station in the S5 includes the NB-IoT support capability of the UE, and the NB of the UE.
  • the IoT support capability is stored by the first MME when the RRC connection is established.
  • the first base station does not need to initiate the UE query message to the UE to obtain the NB-IoT support capability of the UE; that is, the first The NB-IoT support capability of the UE in the MME provides a more convenient application mode for subsequent service services, thereby improving service efficiency.
  • FIG. 4 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the UE establishes an RRC connection with the third base station in the second MME, and the UE needs to switch to the first base station in the first MME, that is, the UE needs to establish an RRC connection with the first base station.
  • the method provided in this embodiment further includes:
  • the first base station receives a handover command sent by the first MME, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME, where the handover command includes the NB-IoT support of the UE.
  • the capability and the target address of the handover the target address being the first base station under the first MME.
  • the first base station demodulates the handover command, and acquires the NB-IoT support capability of the UE in the handover command.
  • the first base station sends the NB-IoT support capability of the UE to the first MME, to indicate that the first MME stores the NB-IoT support capability of the UE.
  • the first MME and the second MME do not parse the content of the handover command, that is, even if the first MME receives the handover command before the first base station, but the first The MME does not know the specific content of the handover command.
  • the purpose of the first MME and the second MME is only to deliver the handover command to the target base station, that is, the first base station.
  • the MME may The NB-IoT support capability of the demodulated UE is sent to the first MME to indicate that the first MME stores the NB-IoT support capability of the UE, so as to be The wireless business provides services.
  • FIG. 5 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the base station that has established an RRC connection with the UE is the first base station, that is, the method provided in this embodiment is as follows:
  • the first base station receives measurement information sent by the UE, where the measurement information indicates to the first base station that the target base station that the UE switches is the fourth base station.
  • the first base station indicates, by using the measurement information, that the fourth base station acquires a handover request message that includes the NB-IoT support capability of the UE, where the handover request message is used to instruct the second base station to allocate the radio resource to the UE according to the NB-IoT support capability of the UE.
  • the target base station that the UE is handed over may be in the first MME and the base station in the other MME, and when the network location to which the fourth base station belongs is different, The way to get the UE's NB-IoT support capability is also different.
  • the S140 in this embodiment may be replaced by: the first base station passes the X2.
  • the interface sends a handover request message including the NB-IoT support capability of the UE to the fourth base station, where the X2 interface is an interface connected to the base station, and the base station in the same MME can directly transmit through the X2 interface, specifically, the NB-IoT support capability of the UE. It is included in a source to target Transparent Container cell in a Handover Request sent by the first base station.
  • the S140 in this embodiment may be replaced by: the first base station sends a handover request message to the first MME, where the handover request message is used to indicate The first MME forwards the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or the first base station sends a handover request message to the first MME, where the handover request message is used to indicate The MME forwards the handover request message to the second MME, so that the second MME forwards the handover request message to the fourth base station, where the fourth base station is under the second MME.
  • the handover request message is transmitted through the S1 interface, where the S1 interface is an interface between the base station and the MME, and the handover request message sent by the first base station to the first MME is first.
  • the handover request message sent by the MME to the fourth base station, the first MME The handover request message sent to the second MME and the handover request message sent by the second MME to the fourth base station include the NB-IoT support capability of the UE in the source-to-target transparent container cell.
  • FIG. 6 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the base station that is currently establishing an RRC connection with the UE is the first base station, and the first base station has acquired the context information of the UE in the process of establishing the RRC with the UE, and the context information of the UE includes the bearer information.
  • the first base station determines to suspend the established RRC connection.
  • the first base station sends the context information of the UE to the first MME, where the context information of the UE is used to indicate that the first MME sends the context information of the UE to the base station that the UE accesses when the UE initiates the optimization scheme based on the user plane transmission.
  • the first base station suspends an RRC connection established with the UE.
  • the embodiment further includes, after the S140, the following method:
  • the first base station receives an RRC connection recovery request message sent by the UE.
  • S170 and S180 in this embodiment are performed one by one.
  • the method proposed in the current standard is: saving the context information of the UE in the original The base station, when the UE moves to the new base station and initiates the service, the new base station acquires the context information saved by the original base station through the X2 interface, or re-establishes the UE context information, and can only re-establish the X2 interface between the original base station and the new base station.
  • the UE context information is established, and the advantage of the user plane transmission optimization scheme cannot be fully utilized.
  • the context information of the UE is sent to the first MME accessed by the first base station, and when the UE resumes the RRC connection through the activation process, the UE context information does not need to be re-established, and the base station does not need to be re-established.
  • the NB-IoT support capability of the UE may be transmitted between the base station and the MME, between the base station and the base station, and between the MME and the MME, and the NB-IoT support of the cell may also be transmitted.
  • Capability that is, the ability to deliver cells through dedicated signaling.
  • the NB-IoT support capability of the UE sent by the first base station to the first MME the NB-IoT support capability of each cell in the first base station is also carried in the NB-IoT of each cell in the first base station.
  • the support capability includes uplink narrowband access capability of each cell under the first base station, and support capability based on the user plane and control plane transmission optimization scheme; and the handover command in the embodiment shown in FIG. 4 further includes the third base station.
  • NB-IoT support capability of each cell includes uplink narrowband access capability of each cell under the third base station, and an optimization scheme based on user plane and control plane transmission Support ability.
  • the dedicated signaling for transmitting the cell capability includes, for example, a handover request message and a handover request response message, and may also be indirectly carried by the failure cause in the request failure.
  • FIG. 7 is a signaling flowchart of an information transmission method according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the base station that is currently establishing an RRC connection with the UE is the first base station, and the first base station and the fifth base station are connected through the X2 interface.
  • the mode of transmitting the cell capability is specifically described.
  • the methods provided in the examples also include:
  • the first base station sends the NB-IoT support capability of each cell in the first base station to the fifth base station by using the X2 interface, where the NB-IoT support capability of each cell in the first base station includes the uplink of each cell in the first base station.
  • Narrowband access capability and support capabilities based on user plane and control plane transport optimization schemes.
  • the first base station receives the NB-IoT support capability of each cell in the fifth base station that is sent by the fifth base station through the X2 interface, and the NB-IoT support capability of each cell in the fifth base station includes each cell in the fifth base station.
  • the capability between the first base station and the fifth base station is not the capability of the UE, but the capability of the cell.
  • the capability of the target cell selected by the UE needs to be The capabilities of the UE are matched, that is, the source base station needs to know the capability of the target cell, and the base station of the target cell also needs to know the capability of the source cell. Therefore, the transmission capability of the cell capability The success rate of the UE handover is ringing.
  • the common signaling for transmitting the cell capability in this embodiment includes, for example, an X2 setup request message and an X2 setup response message, a base station configuration update message and a message configuration update acknowledgement message, and a resource status request message and a resource status response message.
  • the embodiment shown in FIG. 1 provides a manner of transmitting an uplink narrowband access capability of a UE.
  • the uplink narrowband access capability of the UE may also be transmitted through other manners.
  • the Physical Random Access Channel (PBR) is designed with different transmission formats and types for the uplink narrowband access capability of the UE.
  • FIG. 8 it is provided by another embodiment of the present invention.
  • a signaling flow chart of the information transmission method, which is only for the transmission of the uplink narrowband access capability of the UE, that is, the method provided in this embodiment may include:
  • the first base station receives an uplink narrowband access capability of the UE that is sent by the UE through the PRACH.
  • the first base station determines, according to the type of the PRACH, that the uplink narrowband access capability of the UE is single frequency access or multiple frequency access.
  • the first base station when the first base station receives the PRACH of the Single-Tone type, it considers that the UE that initiates the PRACH procedure is a Single-Tone capable UE; when the first base station receives the Multi-Tone type PRACH, The UE that initiates the PRACH procedure is considered to be a Multi-Tone capable UE.
  • FIG. 9 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the information transmission method provided in this embodiment is applicable to the case where the NB-IoT performs paging control, and the method can be implemented by an information transmission device, which is implemented by a combination of hardware and software, and the device can be integrated in
  • the processor of the MME is used by the processor for calling.
  • the method in this embodiment may include:
  • the first MME receives the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is obtained by establishing an RRC connection with the UE, where the NB-IoT support capability of the UE includes the UE.
  • Uplink narrowband access capability, and one or more of the support capabilities based on user plane and control plane transport optimization schemes.
  • the reason for triggering the first base station to establish an RRC connection with the UE may also include that the UE performs initial attach, the NB-IoT support capability of the UE changes, or the first base station allocates radio resources to the UE, and the first base station
  • the NB-IoT support capability of the UE is not obtained, in the above
  • the specific manner for the first base station to obtain the NB-IoT support capability of the UE can also be referred to the manner shown in FIG. 2, and details are not described herein again.
  • the first MME stores the NB-IoT support capability of the UE.
  • the first MME sends the NB-IoT support capability of the UE to the second base station when the UE requests to establish an RRC connection by using the second base station or the UE switches from the first base station to the second base station under the first MME.
  • the first base station has the NB-IoT support capability of the UE, and then the first MME receives and stores the NB of the UE.
  • - IoT support capability to facilitate the first MME to provide services for subsequent services.
  • the first MME may send the NB-IoT support capability of the UE to the current access of the UE. Base station.
  • the first MMEs in the embodiments of the present invention are all MMEs accessed by the first base station, and the first MME stores the NB-IoT support capability of the first base station to send the UEs for the purpose of subsequent wireless. Used in business.
  • the first MME receives the NB-IoT support capability of the UE sent by the first base station, and the NB-IoT support capability of the UE is obtained by the first base station by establishing an RRC connection with the UE.
  • the NB-IoT support capability may include one or more of uplink narrowband access capabilities of the UE, and support capabilities based on user plane and control plane transmission optimization schemes, and the first MME supports the NB-IoT support capability of the UE.
  • the service is provided when the UE initiates the subsequent wireless service; in this embodiment, the practicality of the wireless connection service in the NB-IoT is improved by reasonably designing the delivery mode of the NB-IoT support capability of the UE.
  • the NB-IoT support capability of the UE is already stored in the first MME, and the NB-IoT support capability of the UE may be applied to subsequent wireless services.
  • the following embodiments are based on the embodiment shown in FIG. 9; in addition, the present invention is an embodiment in which the first MME side is the main body of execution, and in the specific execution manner of the subsequent service, the embodiment shown in FIG. 1 may be provided.
  • the RRC connection with the UE is not the first base station, but other base stations, for example, the base station under the first MME, and may be, for example, a base station under other MMEs.
  • FIG. 10 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the UE requests to establish an RRC by using the second base station; or the UE needs to switch from the first base station to the second base station under the first MME, that is, the UE needs to establish an RRC connection with the second base station, and the implementation is implemented.
  • the methods provided in the examples also include:
  • the first MME receives an initial UE message sent by the second base station, where the initial UE message includes service request information.
  • the first MME sends an initial context setup request message to the second base station, where the initial context setup request message includes the NB-IoT support capability of the UE.
  • the step performed by the second base station may refer to S1 to S3 in the process shown in FIG. 2, and the message interaction with the UE is specifically the second. Base station.
  • the NB-IoT support capability of the UE included in the initial context setup request message sent by the first MME to the second eNB is stored when the first MME establishes an RRC connection. Therefore, the second base station does not need to perform the UE Query message to the UE to obtain the NB-IoT support capability of the UE, that is, the S6 to S7 in the embodiment shown in FIG. 2 need not be executed; that is, in the first MME.
  • the NB-IoT support capability of the storage UE provides a more convenient application mode for subsequent service services, thereby improving service efficiency.
  • FIG. 11 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the UE establishes an RRC connection with the third base station in the second MME, and the UE needs to switch to the first base station in the first MME, that is, the UE needs to establish an RRC connection with the first base station.
  • the method provided in this embodiment further includes:
  • the first MME sends a handover command to the first base station, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME, where the handover command includes the NB-IoT support capability of the UE. And a target address of the handover, where the target address is the first base station under the first MME.
  • the first MME receives and stores the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is obtained by the first base station by using a demodulation handover command.
  • the first MME and the second MME do not parse the content of the handover command, that is, even if the first MME receives the handover command before the first base station, but the first The MME does not know the specific content in the handover command, the first MME and the second The purpose of the MME is to transmit the handover command to the target eNB, that is, the first eNB, after the first base station demodulates the handover command, the NB-IoT support capability of the demodulated UE can be sent to the first MME.
  • the first MME is instructed to store the NB-IoT support capability of the UE to provide services for subsequent wireless services.
  • FIG. 12 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario in this embodiment is that the first base station is ready to allocate radio resources to the UE, and the first base station also needs to establish an RRC connection with the UE to obtain the NB-IoT support capability of the UE.
  • the first base station accesses.
  • the first MME has already stored the NB-IoT support capability of the UE, but the first base station cannot obtain the NB-IoT support capability of the UE, and the method provided in this embodiment further includes:
  • the first MME receives an initial UE message sent by the first base station, where the initial UE message includes service request information.
  • the first MME sends an initial context setup request message to the first base station, and the initial context setup request message does not include the NB-IoT support capability of the UE.
  • the first MME receives and stores the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is obtained by the first base station by sending a UE capability query message to the UE, and the NB-IoT of the UE
  • the support capability is used by the first base station to allocate radio resources to the UE.
  • the first base station in this embodiment also needs to perform S1 to S7 in FIG. 2, which is different from the foregoing process in FIG. 2, and the initial UE message in the embodiment S4 specifically includes service request information.
  • the NB-IoT support capability of the UE is not included in the initial context setup request message received by the first base station in S5. After the first base station obtains the NB-IoT support capability of the UE by initiating a UE query message to the UE, The UE is allocated radio resources by the NB-IoT support capability of the UE.
  • FIG. 13 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the base station that has established an RRC connection with the UE is the first base station, and the UE needs to switch from the first base station to the fourth base station, and the X2 interface is not disposed between the first base station and the fourth base station. That is, based on the application scenario shown in FIG. 9 above, the method provided in this embodiment further includes:
  • the first MME receives a handover request sent by the first base station, where the handover request is sent by the first base station to the first MME after receiving the measurement information sent by the UE, where the measurement information is used to indicate that the target base station that the UE switches is the fourth. Base station.
  • the first MME forwards a handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or the first MME sends a handover request to the second MME, where the handover request is used to indicate the second
  • the MME forwards a handover request message to the fourth base station, where the fourth base station is under the second MME.
  • the target base station that the UE is handed over may be in the first MME and the base station in the other MME, and when the network location to which the fourth base station belongs is different, The way to get the UE's NB-IoT support capability is also different.
  • the handover request message is transmitted through the S1 interface, where the S1 interface is an interface between the base station and the MME, and the handover request message sent by the first base station to the first MME is first.
  • the source-to-target transparent container cell is included in the handover request message sent by the MME to the fourth base station, the handover request message sent by the first MME to the second MME, and the handover request message sent by the second MME to the fourth base station.
  • FIG. 14 is a flowchart of still another method for transmitting information according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the base station that is currently establishing an RRC connection with the UE is the first base station, and the first base station has acquired the context information of the UE in the process of establishing the RRC with the UE, and the context information of the UE includes the bearer information.
  • the method provided in this embodiment further includes:
  • the first MME receives the context information of the UE sent by the first base station, where the context information of the UE is sent to the first MME before the first base station suspends the established RRC connection.
  • the first MME sends the context information of the UE to the base station accessed by the UE when the UE initiates the optimization scheme based on the user plane transmission.
  • the embodiment further includes, after the S250, the following method:
  • the first MME receives the UE context request message sent by the first base station, where the UE context request message is that the first base station receives the RRC connection recovery request message sent by the UE, and when the context information of the UE is not stored in the first base station, The first MME sent.
  • the first MME sends a UE context response message to the first base station, where the UE context response message is used to instruct the first base station to send an RRC connection recovery complete message to the UE.
  • the method proposed in the current standard is: saving the context information of the UE in the original base station, and when the UE moves to the new base station and initiates the service, the new base station acquires the original base station saved through the X2 port.
  • Context information, or re-establishing UE context information in the case that there is no X2 interface between the original base station and the new base station, the UE context information can only be re-established, and the advantage of the user plane-based transmission optimization scheme cannot be fully utilized.
  • the context information of the UE is sent to the first MME that is accessed by the first base station. When the UE resumes the RRC connection through the activation process, the UE context information does not need to be re-established, and the X2 interface between the base stations is not restricted.
  • FIG. 15 is a signaling flowchart of still another information transmission method according to an embodiment of the present invention.
  • the information transmission method provided in this embodiment is applicable to the case where the capability information is transmitted in the NB-IoT, and the method may be performed by the UE, the base station, and the MME. As shown in FIG. 14, the method in this embodiment may include:
  • the first base station acquires an NB-IoT support capability of the UE by establishing an RRC connection with the UE, where the NB-IoT support capability of the UE includes an uplink narrowband access capability of the UE, and an optimization scheme based on user plane and control plane transmission.
  • the support capabilities include an uplink narrowband access capability of the UE, and an optimization scheme based on user plane and control plane transmission.
  • the reason for triggering the first base station to establish an RRC connection with the UE includes the initial change of the UE or the change of the NB-IoT support capability of the UE, and in the foregoing two cases, the first base station acquires the NB of the UE.
  • the manner in which the IoT supports the capability can also be as shown in the process of FIG. 2, that is, the first base station and the UE obtain the NB-IoT support capability of the UE through the signaling interaction in FIG.
  • the specific implementation is the same as that shown in FIG. 2, and therefore is not described here.
  • the first base station sends the NB-IoT support capability of the UE to the first MME.
  • the first MME stores the NB-IoT support capability of the UE.
  • the purpose of the first MME to store the NB-IoT support capability of the UE is to provide services for subsequent wireless services. For example, when the UE requests to re-establish an RRC connection, or the base station accessed by the UE changes, the first MME may send the NB-IoT support capability of the UE to the base station currently accessed by the UE.
  • the first base station and the first MME in this embodiment are used when the UE initially establishes an RRC connection, that is, the first MME stores the NB-IoT support capability of the UE, and is used in the subsequent application in this embodiment.
  • the first base station is a source base station
  • the first MME is a source MME.
  • the UE needs to establish an RRC connection with the second base station; or the UE needs to switch to the second base station in the first MME, and the method provided in this embodiment further includes:
  • the second base station acquires an NB-IoT support capability of the UE from the first MME by establishing an RRC connection with the UE.
  • the UE, the second base station, and the first MME may perform the steps S1 to S5, where the initial UE message of S4 specifically includes service request information, and is first, in S5.
  • the initial context setup request message sent by the MME includes the NB-IoT support capability of the UE, and the NB-IoT support capability of the UE is stored when the first MME establishes an RRC connection, and therefore does not need to be adopted by the first base station.
  • a UE query message is initiated to the UE to obtain the NB-IoT support capability of the UE.
  • the second base station in this embodiment may be the first base station that previously established an RRC connection with the UE, or may be another base station under the first MME.
  • the eNB that is currently in the RRC connection with the UE is the first eNB in the first MME, and the UE needs to switch to the third eNB in the second MME, that is, the UE needs to establish an RRC with the third eNB.
  • the method provided in this embodiment further includes:
  • the first base station sends a handover command to the first MME, where the handover command includes the NB-IoT support capability of the UE and the target address of the handover, where the target address is the third base station under the second MME.
  • the first MME sends a handover command to the second MME.
  • the second MME sends a handover command to the third base station.
  • the third base station demodulates the handover command, and acquires the NB-IoT support capability of the UE in the handover command.
  • the third base station sends the NB-IoT support capability of the UE to the second MME.
  • the second MME stores the NB-IoT support capability of the UE.
  • the third MME may also provide a service for the subsequent wireless service, that is, the method provided in this embodiment further includes:
  • the fourth base station acquires the UE from the second MME by establishing an RRC connection with the UE.
  • NB-IoT support capabilities The specific implementation manner of S311 in this embodiment is the same as the specific implementation manner of S304. It should be noted that the fourth base station in this embodiment may be the third base station that previously established an RRC connection with the UE, or may be the second MME. Other base stations under.
  • any one of the base stations currently establishing an RRC connection with the UE for example, the third base station in the second MME, if the third base station is ready to allocate radio resources to the UE, may perform S1 to S5 are used to obtain the initial context setup request message sent by the second MME.
  • the method provided in this embodiment further includes:
  • the third base station initiates a UE capability query message to the UE.
  • the third base station receives the UE capability information indication message sent by the UE, where the UE capability information indication message includes the NB-IoT support capability of the UE.
  • the method provided by this embodiment is that the current RRC connection with the UE is the first base station in the first MME, and the method provided in this embodiment further includes:
  • the first base station receives measurement information sent by the UE, where the measurement information indicates to the first base station that the target base station that the UE switches is the fourth base station.
  • the S314 further includes:
  • the first base station sends, by using an X2 interface, a handover request message including a NB-IoT support capability of the UE to the fourth base station.
  • the S313 further includes:
  • the first base station sends a handover request message to the first MME.
  • the first MME forwards the handover request message to the fourth base station.
  • the first base station and the fourth base station in this embodiment are both under the first MME.
  • the method may further include:
  • the first base station sends a handover request message to the first MME.
  • the first MME sends a handover request message to the second MME.
  • the second MME forwards the handover request message to the fourth base station.
  • the first base station is in the first MME
  • the fourth base station is in the second MME.
  • the eNB that is currently in the RRC connection with the UE is the first eNB in the first MME, and the first eNB has obtained the context information of the UE in the process of establishing the RRC with the UE, and the context information of the UE includes the bearer information context.
  • the method provided in this embodiment further includes:
  • the first base station determines to suspend the established RRC connection.
  • the first base station determines whether the context information of the UE is stored in the first MME; if not, executing S320; if yes, executing S321.
  • the first base station sends the context information of the UE to the first MME, where the context information of the UE is used to indicate that the first MME sends the UE to the base station accessed by the UE when the UE initiates an optimization scheme based on user plane or control plane transmission.
  • Contextual information is used to indicate that the first MME sends the UE to the base station accessed by the UE when the UE initiates an optimization scheme based on user plane or control plane transmission.
  • the first base station suspends an RRC connection established with the UE.
  • this embodiment further includes after S321:
  • the first base station receives an RRC connection recovery request message sent by the UE.
  • the first base station determines whether to store context information of the UE. If not, execute S324; if yes, execute S326.
  • the first base station sends a UE context request message to the first MME.
  • the first base station sends an RRC connection recovery complete message to the UE.
  • FIG. 16 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the information transmission apparatus provided in this embodiment is applicable to the case where the capability information is transmitted in the NB-IoT, and the information transmission apparatus is implemented by a combination of hardware and software, and the apparatus may be integrated in the processor of the base station for the processor. Called for use.
  • the apparatus of this embodiment may include: a receiving module 11 and a sending module 12.
  • the receiving module 11 and the sending module 12 are configured to acquire the NB-IoT support capability of the UE, where the NB-IoT support capability of the UE includes the uplink narrowband access capability of the UE, and the user plane and control plane transmission optimization scheme. One or more of the support capabilities.
  • the receiving module 11 and the sending module 12 are configured to obtain the NB-IoT support capability of the UE by establishing an RRC connection with the UE.
  • the reason for triggering the first base station to establish an RRC connection with the UE includes, for example, the initial attach of the UE, or the change of the NB-IoT support capability of the UE, or the first base station allocates radio resources to the UE, and the first base station does not Obtain the NB-IoT support capability of the UE.
  • the specific manner of obtaining the NB-IoT support capability of the UE by establishing a wireless RRC connection with the UE is: the receiving module 11 is configured to receive an RRC connection request message sent by the UE, and the sending module 12 is configured to send an RRC connection setup message to the UE; The module 11 is configured to receive an RRC connection setup complete message sent by the UE, and the sending module 12 is configured to send an initial UE message to the first MME, where the initial UE message includes an attach request message, a TAU request message, or an NB-IoT that does not include the UE.
  • the receiving module 11 is configured to receive an initial context setup request message sent by the first MME, where the initial context setup request message includes an attach accept message, a TAU accept message, or an NB-IoT support capability that does not include the UE; and the sending module 12 And the UE is configured to send the UE capability query message to the UE.
  • the receiving module 11 is configured to receive the UE capability information indication message sent by the UE, where the UE capability information indication message includes the NB-IoT support capability of the UE.
  • the foregoing first base station acquires the NB-IoT support capability of the UE through the receiving module 11 and the sending module 12, and is a general manner for establishing an RRC connection.
  • the sending module 12 is further configured to send the NB-IoT support capability of the UE to the first MME, to indicate that the first MME stores the NB-IoT support capability of the UE, and instruct the first MME to request to re-establish the RRC connection or the UE access in the UE.
  • the NB-IoT support capability of the UE is sent to the base station currently accessed by the UE, and the base station currently accessed by the UE is under the first MME.
  • the first MMEs in the embodiments of the present invention are all MMEs accessed by the first base station, and the first base station sends the NB-IoT support capability of the UE to the first MME.
  • the NB-IoT support capability of the UE is stored and used in subsequent wireless services.
  • the information transmission device provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 1 of the present invention, and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the first MME already exists.
  • the NB-IoT support capability of the UE is stored, and the NB-IoT support capability of the UE can be applied to the subsequent wireless service.
  • the following embodiments are all based on the embodiment shown in FIG. 16.
  • the present invention is the first base station.
  • the other side is the first MME, and the other eNB is, for example, the first MME, in the embodiment shown in FIG.
  • the lower base station can be, for example, a base station under other MMEs.
  • the application scenario in this embodiment is that the RRC connection established between the UE and the first base station in the example shown in FIG. 16 is disconnected; or the UE establishes an RRC connection with the second base station in the first MME.
  • the UE needs to switch to the first base station in the first MME, that is, the UE needs to establish an RRC connection with the first base station.
  • the receiving module 11 and the sending module 12 in this embodiment are also configured to re-establish an RRC connection with the UE.
  • the receiving module 11 is further configured to receive an RRC connection request message sent by the UE, and the sending module 12 is further configured to send an RRC connection setup message to the UE;
  • the module 11 is further configured to receive an RRC connection setup complete message sent by the UE, and the sending module 12 is further configured to send an initial UE message to the first MME, where the initial UE message includes service request information, and the receiving module 11 is further configured to receive the first An initial context setup request message sent by an MME, where the initial context setup request message includes the NB-IoT support capability of the UE.
  • the information transmission device provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 3 of the present invention, and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • FIG. 17 is a schematic structural diagram of another information transmission method according to an embodiment of the present invention.
  • the application scenario of this embodiment is that the UE establishes an RRC connection with the third base station in the second MME, and the UE needs to switch to the first base station in the first MME, that is, the UE needs to establish an RRC connection with the first base station.
  • the receiving module 11 is further configured to receive a handover command sent by the first MME, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME, where the handover command is The NB-IoT support capability of the UE and the target address of the handover are performed, and the target address is the first base station in the first MME.
  • the information transmission apparatus further includes: a demodulation module 13 configured to demodulate the handover command, and Obtaining the NB-IoT support capability of the UE in the handover command; the sending module 12 is further configured to: NB-IoT of the UE The support capability is sent to the first MME to instruct the first MME to store the NB-IoT support capability of the UE.
  • the information transmission apparatus provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 4 of the present invention, and has a corresponding function module, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the application scenario in this embodiment is that the base station that has established an RRC connection with the UE is the first base station, that is, on the basis of the application scenario shown in FIG. 16 , the receiving module 11 is further configured to receive the measurement sent by the UE.
  • the information, the measurement information indicates that the target base station that the UE is handed over to the first base station is the fourth base station, and the sending module 12 is further configured to: use the measurement information to instruct the fourth base station to acquire the handover request message including the NB-IoT support capability of the UE, and switch
  • the request message is used to indicate that the second base station allocates radio resources to the UE according to the NB-IoT support capability of the UE.
  • the target base station that the UE is handed over may be in the first MME and the base station in the other MME, and when the network location to which the fourth base station belongs is different, The way to get the UE's NB-IoT support capability is also different.
  • the sending module 12 is configured to use the measurement information to indicate that the fourth base station acquires
  • the handover request message including the NB-IoT support capability of the UE is configured to: the sending module 12 is further configured to send, by using the X2 interface, a handover request message including the NB-IoT support capability of the UE to the fourth base station.
  • the sending module 12 is configured to use the measurement information to instruct the fourth base station to acquire a handover request message including the NB-IoT support capability of the UE, where Means: sending a handover request message to the first MME, where the handover request message is used to indicate that the first MME forwards the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or The MME sends a handover request message, and the handover request message is used to indicate that the first MME forwards the handover request message to the second MME, so that the second MME forwards the handover request message to the fourth base station, where the fourth base station is under the second MME.
  • the transmission of the handover request message in this embodiment is implemented by using an S1 interface, which is an interface between the base station and the MME.
  • the information transmission apparatus provided by the embodiment of the present invention is configured to perform the embodiment shown in FIG. 5 of the present invention.
  • the information transmission method is provided, and the corresponding function module is provided, and the implementation principle and the technical effect are similar, and are not described herein again.
  • the application scenario of this embodiment is that the base station that is currently establishing an RRC connection with the UE is the first base station, and the first base station has acquired the context information of the UE, and the context information of the UE in the process of establishing the RRC with the UE.
  • the device includes the one or more of the bearer information context and the AS security context.
  • the device provided in this embodiment further includes: a determining module 14 and a suspending module 15;
  • the module 14 is configured to determine to suspend the established RRC connection.
  • the sending module 12 is further configured to send the context information of the UE to the first MME, where the context information of the UE is configured to indicate that the first MME initiates the user plane based transmission optimization.
  • the eNB sends the context information of the UE to the base station that the UE accesses; the suspension module 15 is configured to suspend the RRC connection established with the UE.
  • the receiving module 11 is further configured to receive the RRC connection recovery request message sent by the UE after the suspending module 15 suspends the RRC connection established with the UE.
  • the information transmission device further includes: a determining module 16 configured to determine whether the context information of the UE is stored in the first base station; and the sending module 12 is further configured to: when the determining module 16 determines that the context information of the UE is stored in the first base station Sending an RRC connection recovery complete message to the UE; the sending module 12 is further configured to: when the determining module 16 determines that the context information of the UE is not stored in the first base station, send a UE context request message to the first MME; the receiving module 11 further The UE is configured to receive the UE context response message returned by the first MME.
  • the sending module 12 is further configured to send an RRC connection recovery complete message to the UE.
  • the information transmission device provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 6 of the present invention, and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the NB-IoT support capability of the UE may be transmitted between the base station and the MME, between the base station and the base station, and between the MME and the MME, and the NB-IoT support of the cell may also be transmitted.
  • Capability that is, the ability to deliver cells through dedicated signaling.
  • the NB-IoT support capability of the UE sent by the first base station to the first MME the NB-IoT support capability of each cell in the first base station is also carried in the NB-IoT of each cell in the first base station.
  • the support capability includes uplink narrowband access capability of each cell under the first base station, and based on the user plane and
  • the NB-IoT support capability of each cell in the third base station is included in the handover command in the foregoing embodiment, and the NB-IoT support capability of each cell in the third base station includes The uplink narrowband access capability of each cell under the third base station, and the support capability based on the user plane and control plane transmission optimization scheme.
  • the dedicated signaling for transmitting the cell capability includes, for example, a handover request message and a handover request response message, and may also be indirectly carried by the failure cause in the request failure.
  • the base station that is currently in the RRC connection with the UE is the first base station, and the first base station and the fifth base station are connected through the X2 interface.
  • the transmission mode of the cell capability is specifically described.
  • the sending module 12 is further configured to send, by using the X2 interface, the NB-IoT support capability of each cell in the first base station to the fifth base station, where the NB-IoT support capability of each cell in the first base station includes each of the first base station.
  • Capabilities, the NB-IoT support capability of each cell under the fifth base station includes uplink narrowband access capability of each cell under the fifth base station, and support capability based on user plane and control plane transmission optimization scheme.
  • the information transmission device provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 7 of the present invention, and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the embodiment shown in FIG. 16 provides a manner of transmitting the uplink narrowband access capability of the UE.
  • the uplink narrowband access capability of the UE may also be transmitted in other manners.
  • the receiving module 11 is further configured to receive the uplink narrowband access capability of the UE that is sent by the UE
  • the determining module 14 is further configured to determine that the uplink narrowband access capability of the UE is a single frequency access according to the type of the PRACH. Or multi-frequency access.
  • the information transmission apparatus provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 8 of the present invention, and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the receiving module 11 and the transmitting module 12 may be implemented by a transceiver in the information transmission device; the demodulating module 13, the determining module 14, the suspending module 15, and the judging module 16 may be implemented by a processor in the information transmission device. achieve.
  • FIG. 18 is a schematic structural diagram of still another information transmission apparatus according to an embodiment of the present invention.
  • the information transmission apparatus provided in this embodiment is applicable to the case where the capability information is transmitted in the NB-IoT, and the information transmission apparatus is implemented by a combination of hardware and software, and the apparatus may be integrated in the processor of the MME for the processor. Called for use.
  • the apparatus of this embodiment may include: a receiving module 21, a storage module 22, and a sending module 23.
  • the receiving module 21 is configured to receive the NB-IoT support capability of the user equipment UE sent by the first base station, where the NB-IoT support capability of the UE is acquired by the first base station, and the NB-IoT support capability of the UE includes the uplink narrowband of the UE. Access capability, and one or more of the support capabilities based on user plane and control plane transport optimization schemes.
  • the first base station may acquire the NB-IoT support capability of the UE by establishing an RRC connection with the UE.
  • the reason that the trigger receiving module 21 establishes an RRC connection with the UE may also include that the UE performs initial attach, the NB-IoT support capability of the UE changes, or the first base station allocates radio resources to the UE, and the first base station The NB-IoT support capability of the UE is not obtained.
  • the specific manner for the first base station to obtain the NB-IoT support capability of the UE can also be referred to the manner shown in FIG. 2, and details are not described herein again.
  • the storage module 22 is configured to store the NB-IoT support capability of the UE.
  • the sending module 23 is configured to send the NB-IoT support capability of the UE to the second base station when the UE requests to establish an RRC connection by using the second base station or the UE switches from the first base station to the second base station under the first MME.
  • the first base station has the NB-IoT support capability of the UE, and then the first MME receives and stores the NB of the UE.
  • - IoT support capability to facilitate the first MME to provide services for subsequent services.
  • the first MME may send the NB-IoT support capability of the UE to the current access of the UE. Base station.
  • the first MMEs in the embodiments of the present invention are all MMEs accessed by the first base station, and the first MME stores the NB-IoT support capability of the first base station to send the UEs for the purpose of subsequent wireless. Used in business.
  • the NB-IoT support capability of the UE is already stored in the storage module 22 of the first MME, and the NB-IoT support capability of the UE may be applied to the subsequent
  • the present invention is an embodiment in which the first MME side is the execution subject, and in the specific execution manner of the subsequent service, it may be assumed that FIG. 18
  • the RRC connection with the UE is not the first base station, but other base stations, for example, the base station under the first MME, and may be, for example, a base station under other MMEs.
  • the application scenario of this embodiment is that the UE requests to establish an RRC by using the second base station; or, the UE needs to switch from the first base station to the second base station under the first MME, that is, the UE needs to establish an RRC connection with the second base station,
  • the receiving module 21 is further configured to receive an initial UE message sent by the second base station, where the initial UE message includes the service request information
  • the sending module 23 is further configured to send the initial context establishment to the second base station.
  • the request message, the initial context setup request message includes the NB-IoT support capability of the UE.
  • the step performed by the second base station may refer to S1 to S3 in the process shown in FIG. 2, and the message interaction with the UE is specifically the second. Base station.
  • the NB-IoT support capability of the UE included in the initial context setup request message sent by the first MME to the second eNB is stored when the first MME establishes an RRC connection. Therefore, the second base station does not need to perform the UE Query message to the UE to obtain the NB-IoT support capability of the UE, that is, the S6 to S7 in the embodiment shown in FIG. 2 need not be executed; that is, in the first MME.
  • the NB-IoT support capability of the storage UE provides a more convenient application mode for subsequent service services, thereby improving service efficiency.
  • the application scenario of this embodiment is that the UE establishes an RRC connection with the third base station in the second MME, and the UE needs to switch to the first base station in the first MME, that is, the UE needs to establish with the first base station.
  • the sending module 23 is further configured to send a handover command to the first base station, where the handover command is sent by the third MME to the second MME, and is forwarded by the second MME to the first MME.
  • the handover command includes the NB-IoT support capability of the UE and the target address of the handover, and the target address is the first base station in the first MME.
  • the receiving module 21 is further configured to receive the NB-IoT of the UE sent by the first base station. Supporting capability, the NB-IoT support capability of the UE is obtained by the first base station by using a demodulation switching command; the storage module 22, It is also configured to store the NB-IoT support capability of the UE received by the receiving module 21.
  • the first base station is configured to allocate radio resources to the UE, and the first base station also needs to establish an RRC connection with the UE to obtain the NB-IoT support capability of the UE.
  • the first The first MME that is accessed by the base station has the NB-IoT support capability of the UE, and the first base station cannot obtain the NB-IoT support capability of the UE.
  • the receiving module 21 is further configured to receive.
  • the initial UE message sent by the first base station, the initial UE message includes service request information
  • the sending module 23 is further configured to send an initial context setup request message to the first base station, and the initial context setup request message does not include the NB-IoT of the UE.
  • the receiving module 21 is further configured to receive the NB-IoT support capability of the UE sent by the first base station, where the NB-IoT support capability of the UE is obtained by the first base station by sending a UE capability query message to the UE, and the NB of the UE
  • the IoT support capability is used by the first base station to allocate radio resources to the UE;
  • the storage module 22 is further configured to store the NB-IoT support capability of the UE received by the receiving module 21.
  • the first base station in this embodiment also needs to perform S1 to S7 in FIG. 2, which is different from the foregoing process in FIG. 2, and the initial UE message in the embodiment S4 specifically includes service request information.
  • the NB-IoT support capability of the UE is not included in the initial context setup request message received by the first base station in S5. After the first base station obtains the NB-IoT support capability of the UE by initiating a UE query message to the UE, The UE is allocated radio resources by the NB-IoT support capability of the UE.
  • the application scenario of this embodiment is that the base station that has established an RRC connection with the UE is the first base station, and the UE needs to switch from the first base station to the fourth base station, and the first base station and the fourth base station are not provided with The X2 interface, in the apparatus provided in this embodiment, the sending module 23 is further configured to forward the handover request message to the fourth base station, where the first base station and the fourth base station are both under the first MME; or, the sending module 23, The second MME is further configured to send a handover request, where the handover request is used to instruct the second MME to forward the handover request message to the fourth base station, where the fourth base station is in the second MME.
  • the target base station that the UE is handed over may be in the first MME and the base station in the other MME, and when the network location to which the fourth base station belongs is different, The way to get the UE's NB-IoT support capability is also different. It should be noted that, when the transmission of the handover request message in this embodiment is implemented through the S1 interface, the S1 interface is implemented. It is the interface between the base station and the MME.
  • the application scenario of this embodiment is that the base station that is currently establishing an RRC connection with the UE is the first base station, and the first base station has acquired the context information of the UE, and the context information of the UE in the process of establishing the RRC with the UE.
  • the receiving module 21 is further configured to receive the context information of the UE sent by the first base station, where the context information of the UE is the first one.
  • the transmitting module 23 is further configured to send the context information of the UE to the base station accessed by the UE when the UE initiates the optimization scheme based on the user plane transmission before the base station suspends the established RRC connection.
  • the receiving module 21 of the embodiment is further configured to: after receiving the context information of the UE sent by the first base station, receive the UE context request message sent by the first base station, where the UE context request message is received by the first base station.
  • the sending module 23 is further configured to send a UE context response message to the first base station, the UE context response message And configured to instruct the first base station to send an RRC connection recovery complete message to the UE.
  • the information transmission device provided by the embodiment of the present invention is configured to perform the information transmission method provided by the embodiment shown in FIG. 9 to FIG. 14 , and has a corresponding function module, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the receiving module 21 and the transmitting module 23 may be implemented by a transceiver in the information transmission device; the storage module 22 may be implemented by a memory in the information transmission device.
  • the information transmission apparatus may be stored in a readable storage medium of a computer if it is implemented in the form of a software function module and sold or used as an independent product.
  • the technical solutions of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device such as a personal computer, server, or network device, to perform all or part of the information transmission method of the present invention.
  • the foregoing storage medium may include: a USB flash disk (USB flash disk, abbreviated as: U disk), a mobile hard disk, a read-only memory (ROM), and a random access memory (Random Access Memory). , abbreviated as: RAM), disk or optical disc, and other media that can store program code.
  • USB flash disk abbreviated as: U disk
  • ROM read-only memory
  • RAM random access memory
  • disk or optical disc and other media that can store program code.
  • an embodiment of the present invention further provides a computer storage medium in which a computer program is stored, which is used to implement the implementation method provided by the present invention.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium includes a set of instructions, when the instruction is executed, causing at least one processor to execute the information transmission method on the base station side, or execute The information transmission method on the MME side.
  • FIG. 19 is a schematic structural diagram of an information delivery system according to an embodiment of the present invention.
  • the information delivery system provided in this embodiment is applicable to the information transmission in the NB-IoT, where the system generally includes: a first MME 100 and a first base station 110 and a second base station 120 under the first MME 100, and a second MME 200.
  • the first base station 110, the second base station 120, the third base station 210, and the fourth base station 220 in this embodiment are all provided with the information transmission apparatus in the embodiments shown in FIG. 16 and FIG.
  • the second MME 200 is provided with the information transmission device in each embodiment as shown in FIG. 18; in the system of the embodiment, the first base station and the second base station can be connected through the X2 interface, and the third base station and the fourth base station are connected. It is also connectable through the X2 interface, and the first MME is connected to the second MME.
  • the manner in which each network element in the information transmission system of the present embodiment performs information transmission is the same as the manner in which the corresponding network element performs information transmission in the embodiment shown in FIG. 16 to FIG. 18, and is also used to execute the present invention.
  • the information transmission method provided by any of the embodiments shown in FIG. 15 is provided with a corresponding physical device, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the first base station acquires the NB-IoT support capability of the UE by establishing an RRC connection with the UE, and the NB-IoT support capability of the UE may include the uplink narrowband access capability of the UE, and the user plane and One of the support capabilities of the Control Plane Transmission Optimization Solution Or a plurality of, and the first base station, by sending the acquired NB-IoT support capability of the UE to the first MME, instructing the first MME to store the NB-IoT support capability of the UE, thereby providing services for subsequent services;
  • the embodiment improves the practicability of the wireless connection service in the NB-IoT by reasonably designing the transmission mode of the NB-IoT support capability of the UE.

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Abstract

本发明公开了一种信息传输方法、装置、系统和计算机存储介质。本发明中的信息传输方法包括：第一基站获取用户设备(UE)的窄带物联网(NB-IoT)支持能力；第一基站向第一MME发送UE的NB-IoT支持能力，以指示第一MME存储UE的NB-IoT支持能力，并指示第一MME在UE请求重新建立RRC连接或UE接入的基站改变时，将UE的NB-IoT支持能力发送给UE当前接入的基站，UE当前接入的基站在第一MME下。

Description

一种信息传输方法、装置、系统和计算机存储介质 技术领域
本发明涉及无线通信技术领域，尤指一种信息传输方法、装置、系统和计算机存储介质。
背景技术
随着无线通信技术的发展，移动网络应用中，对业务量的需求、终端数量和终端种类都呈现出爆发式的增长趋势，第五代移动通信技术(5th Generation，简称为：5G)已成为未来网络发展的趋势。机器间(Machine to Machine，简称为：M2M)通信(Machine Type Communication，简称为：MTC)作为5G系统的重要场景和技术手段之一，将成为未来无线通信的一个重要应用领域。
在MTC技术的研究中，针对低成本和低吞吐量类型的终端设备，提出了窄带物联网(NarowBand-Internet of Things，简称为：NB-IoT)的研究课题，也就是在200千赫兹(kHz)频带为NB-IoT低成本终端设备(User Equipment，简称为：UE)提供低吞吐量的无线通讯服务。NB-IoT针对UE低成本和小数据量传输的特性，引入了不同的上行窄带接入能力，以及优化的数据传输方案，该优化的数据传输方案包括基于用户面和控制面传输的优化方案。目前的标准状态下，基站没有获取UE的窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力的标准方案，上述UE的各种能力在MTC系统的无线连接的应用中起到至关重要的作用，因此，在MTC中如何传递UE的窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力成为目前亟需解决的问题。
发明内容
为了解决现有存在的技术问题，本发明实施例提供了一种信息传输方 法、装置、系统和计算机存储介质。
第一方面，本发明实施例提供一种信息传输方法，包括：
第一基站获取用户设备UE的窄带物联网NB-IoT支持能力，其中，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
所述第一基站向第一移动性管理实体MME发送所述UE的NB-IoT支持能力，以指示所述第一MME存储所述UE的NB-IoT支持能力，并指示所述第一MME在所述UE请求重新建立RRC连接或所述UE接入的基站改变时，将所述UE的NB-IoT支持能力发送给所述UE当前接入的基站，所述UE当前接入的基站在所述第一MME下。
在第一方面的第一种可能的实现方式中，所述第一基站获取UE的NB-IoT支持能力，包括：
第一基站通过与所述UE建立无线资源控制RRC连接获取所述UE的NB-IoT支持能力。
在第一方面的第一种可能的实现方式中，所述第一基站通过与UE建立RRC连接获取所述UE的NB-IoT支持能力，包括：
当所述UE在进行初始附着时，或所述UE的NB-IoT支持能力改变时，或所述第一基站为所述UE分配无线资源，且所述第一基站未获取到所述UE的NB-IoT支持能力时，所述第一基站向所述UE发送UE能力查询消息；
所述第一基站接收所述UE发送的UE能力信息指示消息，所述UE能力信息指示消息中包括所述UE的NB-IoT支持能力。
在第一方面的第二种可能的实现方式中，在所述UE请求重新建立RRC连接时，或者在所述UE从所第一MME下的第二基站切换到所述第一基站时，所述方法还包括：
所述第一基站通过与UE重新建立RRC连接，从所述第一MME中获取UE的NB-IoT支持能力；
其中，所述第一基站从所述第一MME中获取UE的NB-IoT支持能力， 包括：
所述第一基站向所述第一MME发送初始UE消息，所述初始UE消息中包括服务请求信息；
所述第一基站接收所述第一MME发送的初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
在第一方面的第三种可能的实现方式中，在所述UE从第二MME下的第三基站切换到所述第一基站时，所述方法还包括：
所述第一基站接收所述第一MME发送的切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
所述第一基站解调所述切换命令，并获取所述切换命令中的所述UE的NB-IoT支持能力；
所述第一基站将所述UE的NB-IoT支持能力发送给所述第一MME，以指示所述第一MME存储所述UE的NB-IoT支持能力。
在第一方面的第四种可能的实现方式中，还包括：
所述第一基站接收所述UE发送的测量信息，所述测量信息向所述第一基站指示所述UE切换的目标基站为第四基站；
所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，所述切换请求消息用于指示所述第二基站根据所述UE的NB-IoT支持能力为所述UE分配无线资源。
根据第一方面的第四种可能的实现方式，在第五种可能的实现方式中，所述第一基站与所述第四基站均在所述第一MME下，且所述第一基站和所述第四基站之间通过X2接口连接；所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，包括：
所述第一基站通过所述X2接口向所述第四基站发送包括所述UE的NB-IoT支持能力的所述切换请求消息。
根据第一方面的第四种可能的实现方式，在第六种可能的实现方式中， 所述第一基站和所述第四基站之间未设置有X2接口；所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，包括：
所述第一基站向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
所述第一基站向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向第二MME转发所述切换请求消息，以使得所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
在第一方面的第七种可能的实现方式中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述方法还包括：
所述第一基站确定挂起已建立的RRC连接；
所述第一基站向所述第一MME发送所述UE的上下文信息，所述UE的上下文信息用于指示所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息；
所述第一基站挂起与所述UE建立的RRC连接。
根据第一方面的第七种可能的实现方式，在第八种可能的实现方式中，所述第一基站挂起与所述UE建立的RRC连接之后，还包括：
所述第一基站接收所述UE发送的RRC连接恢复请求消息；
若所述第一基站中存储了所述UE的上下文信息，向所述UE发送RRC连接恢复完成消息；
若所述第一基站中未存储所述UE的上下文信息，向所述第一MME发送UE上下文请求消息，并接收到所述第一MME返回的UE上下文响应消息，从而向所述UE发送RRC连接恢复完成消息。
根据第一方面的第三种可能的实现方式，在第九种可能的实现方式中，所述第一基站向所述第一MME发送的所述UE的NB-IoT支持能力中，还 携带有所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
所述切换命令中还包括所述第三基站下每个小区的NB-IoT支持能力，所述第三基站下每个小区的NB-IoT支持能力包括所述第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
在第一方面的第十种可能的实现方式中，所述第一基站与所述第五基站通过X2接口连接，所述还包括：
所述第一基站通过所述X2接口向所述第五基站发送所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
所述第一基站接收所述第五基站通过所述X2接口发送的所述第五基站下每个小区的NB-IoT支持能力，所述第五基站下每个小区的NB-IoT支持能力包括所述第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
在第一方面的第十一种可能的实现方式中，还包括：
所述第一基站接收所述UE通过物理随机接入信道PRACH发送的所述UE的上行窄带接入能力；
所述第一基站根据所述PRACH的类型确定所述UE的上行窄带接入能力为单频接入或多频接入。
第二方面，本发明实施例提供一种信息传输方法，包括：
第一移动性管理实体MME接收第一基站发送的用户设备UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站获取的，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
所述第一MME存储所述UE的NB-IoT支持能力；
所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站。
在第二方面的第一种可能的实现方式中，所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站，包括：
所述第一MME接收所述第二基站发送的初始UE消息，所述初始UE消息中包括服务请求信息；
所述第一MME向所述第二基站发送初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
在第二方面的第二种可能的实现方式中，在所述UE从所述第二MME下的第三基站切换到所述第一基站时，所述方法还包括：
所述第一MME向所述第一基站发送切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
所述第一MME接收并存储所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过解调所述切换命令获取的。
在第二方面的第三种可能的实现方式中，当所述第一基站为所述UE分配无线资源时，所述方法还包括：
所述第一MME向所述第一基站发送初始上下文建立请求消息，且所述初始上下文建立请求消息中未包括所述UE的NB-IoT支持能力；
所述第一MME接收并存储所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过向所述UE发送UE能力查询消息获取的，并且所述UE的NB-IoT支持能力用于所述第一基站为所述UE分配无线资源。
在第二方面的第四种可能的实现方式中，所述方法还包括：
所述第一MME接收所述第一基站发送的切换请求，所述切换请求为所述第一基站接收到所述UE发送的测量信息后发送给所述第一MME的，所述测量信息用于指示所述UE切换的目标基站为第四基站；
所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
所述第一MME向第二MME发送所述切换请求，所述切换请求用于指示所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
在第二方面的第五种可能的实现方式中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述方法还包括：
所述第一MME接收所述第一基站发送的UE的上下文信息，所述UE的上下文信息为所述第一基站挂起已建立的RRC连接之前，向所述第一MME发送的；
所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息。
根据第二方面的第五种可能的实现方式，在第六种可能的实现方式中，所述第一MME接收所述第一基站发送的UE的上下文信息之后，还包括：
所述第一MME接收所述第一基站发送的UE上下文请求消息，所述UE上下文请求消息为第一基站接收到所述UE发送的RRC连接恢复请求消息，且所述第一基站中未存储所述UE的上下文信息时，向所述第一MME发送的；
所述第一MME向所述第一基站发送UE上下文响应消息，所述UE上下文响应消息用于指示所述第一基站向所述UE发送RRC连接恢复完成消息。
第三方面，本发明实施例提供一种信息传输装置，设置于第一基站中，所述信息传递装置包括：接收模块和发送模块；
其中，所述接收模块和所述发送模块，配置为获取用户设备UE的窄带物联网NB-IoT支持能力，其中，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
所述发送模块，还配置为向第一移动性管理实体MME发送所述UE的NB-IoT支持能力，以指示所述第一MME存储所述UE的NB-IoT支持能力，并指示所述第一MME在所述UE请求重新建立RRC连接或所述UE接入的基站改变时，将所述UE的NB-IoT支持能力发送给所述UE当前接入的基站，所述UE当前接入的基站在所述第一MME下。
在第三方面的第一种可能的实现方式中，所述接收模块和所述发送模块，配置为通过与所述UE建立RRC连接获取所述UE的网NB-IoT支持能力。
在第三方面的第一种可能的实现方式中，所述接收模块和所述发送模块，配置为通过与所述UE建立RRC连接获取所述UE的窄带物联网NB-IoT支持能力，包括：
当所述UE在进行初始附着时，或所述UE的NB-IoT支持能力改变时，或所述第一基站为所述UE分配无线资源，且所述第一基站未获取到所述UE的NB-IoT支持能力时，所述发送模块，配置为向所述UE发送UE能力查询消息；
所述接收模块，配置为接收所述UE发送的UE能力信息指示消息，所述UE能力信息指示消息中包括所述UE的NB-IoT支持能力。
在第三方面的第二种可能的实现方式中，在所述UE请求重新建立RRC连接时，或者在所述UE从所第一MME下的第二基站切换到所述第一基站时；
所述接收模块和所述发送模块，还配置为通过与UE重新建立RRC连接，从所述第一MME中获取UE的NB-IoT支持能力；
其中，所述接收模块和所述发送模块配置为从所述第一MME中获取UE的NB-IoT支持能力，包括：
所述发送模块，还配置为向所述第一MME发送初始UE消息，所述初始UE消息中包括服务请求信息；
所述接收模块，还配置为接收所述第一MME发送的初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
在第三方面的第三种可能的实现方式中，在所述UE从第二MME下的第三基站切换到所述第一基站时；
所述接收模块，还配置为接收所述第一MME发送的切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
所述信息传输装置还包括：解调模块，配置为解调所述切换命令，并获取所述切换命令中的所述UE的NB-IoT支持能力；
所述发送模块，还配置为将所述UE的NB-IoT支持能力发送给所述第一MME，以指示所述第一MME存储所述UE的NB-IoT支持能力。
在第三方面的第四种可能的实现方式中，所述接收模块，还配置为接收所述UE发送的测量信息，所述测量信息向所述第一基站指示所述UE切换的目标基站为第四基站；
所述发送模块，还配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，所述切换请求消息用于指示所述第二基站根据所述UE的NB-IoT支持能力为所述UE分配无线资源。
根据第三方面的第四种可能的实现方式，在第五种可能的实现方式中，所述第一基站与所述第四基站均在所述第一MME下，且所述第一基站和所述第四基站之间通过X2接口连接；
所述发送模块配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，是指：通过所述X2接口向所述第四基站发送包括所述UE的NB-IoT支持能力的所述切换请求消息。
根据第三方面的第四种可能的实现方式，在第六种可能的实现方式中，所述第一基站和所述第四基站之间未设置有X2接口；
所述发送模块配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，是指：向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向第二MME转发所述切换请求消息，以使得所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
在第三方面的第七种可能的实现方式中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述信息传输装置还包括：确定模块和挂起模块；
所述确定模块，配置为确定挂起已建立的RRC连接；
所述发送模块，还配置为向所述第一MME发送所述UE的上下文信息，所述UE的上下文信息配置为指示所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息；
所述挂起模块，配置为挂起与所述UE建立的RRC连接。
根据第三方面的第七种可能的实现方式，在第八种可能的实现方式中，所述接收模块，还配置为在所述挂起模块挂起与所述UE建立的RRC连接之后，接收所述UE发送的RRC连接恢复请求消息；所述信息传输装置还包括：
判断模块，配置为判断所述第一基站中是否存储了所述UE的上下文信息；
所述发送模块，还配置为在所述判断模块判断出所述第一基站中存储了所述UE的上下文信息时，向所述UE发送RRC连接恢复完成消息；
所述发送模块，还配置为在所述判断模块判断出所述第一基站中未存 储所述UE的上下文信息时，向所述第一MME发送UE上下文请求消息；
所述接收模块，还配置为接收所述第一MME返回的UE上下文响应消息；
所述发送模块，还配置为向所述UE发送RRC连接恢复完成消息。
根据第三方面的第三种可能的实现方式，在第九种可能的实现方式中，所述发送模块向所述第一MME发送的所述UE的NB-IoT支持能力中，还携带有所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
所述切换命令中还包括所述第三基站下每个小区的NB-IoT支持能力，所述第三基站下每个小区的NB-IoT支持能力包括所述第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
在第三方面的第十种可能的实现方式中，所述第一基站与所述第五基站通过X2接口连接；所述接收模块，还配置为通过所述X2接口向所述第五基站发送所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
所述接收模块，还配置为接收所述第五基站通过所述X2接口发送的所述第五基站下每个小区的NB-IoT支持能力，所述第五基站下每个小区的NB-IoT支持能力包括所述第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
在第三方面的第十一种可能的实现方式中，所述接收模块，还配置为接收所述UE通过物理随机接入信道PRACH发送的所述UE的上行窄带接入能力；所述信息传输装置还包括：
确定模块，配置为根据所述PRACH的类型确定所述UE的上行窄带接入能力为单频接入或多频接入。
第四方面，本发明实施例提供一种信息传输装置，设置于第一移动性 管理实体MME中，所述信息传输装置包括：
接收模块，配置为接收第一基站发送的用户设备UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站获取的，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
所述存储模块，配置为存储所述UE的NB-IoT支持能力；
所述发送模块，配置为在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站。
在第四方面的第一种可能的实现方式中，所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时；
所述接收模块，还配置为接收所述第二基站发送的初始UE消息，所述初始UE消息中包括服务请求信息；
所述发送模块，还配置为向所述第二基站发送初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
在第四方面的第二种可能的实现方式中，在所述UE从所述第二MME下的第三基站切换到所述第一基站时；
所述发送模块，还配置为向所述第一基站发送切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
所述接收模块，还配置为接收所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过解调所述切换命令获取的；
所述存储模块，还配置为存储所述接收模块接收的UE的NB-IoT支持能力。
在第四方面的第三种可能的实现方式中，当所述第一基站为所述UE 分配无线资源时；
所述发送模块，还配置为向所述第一基站发送初始上下文建立请求消息，且所述初始上下文建立请求消息中未包括所述UE的NB-IoT支持能力；
所述接收模块，还配置为接收所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过向所述UE发送UE能力查询消息获取的，并且所述UE的NB-IoT支持能力用于所述第一基站为所述UE分配无线资源；
所述存储模块，还配置为存储所述接收模块接收的UE的NB-IoT支持能力。
在第四方面的第四种可能的实现方式中，所述接收模块，还配置为接收所述第一基站发送的切换请求，所述切换请求为所述第一基站接收到所述UE发送的测量信息后发送给所述第一MME的，所述测量信息用于指示所述UE切换的目标基站为第四基站；
所述发送模块，还配置为向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
所述发送模块，还配置为向第二MME发送所述切换请求，所述切换请求用于指示所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
在第四方面的第五种可能的实现方式中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；
所述接收模块，还配置为接收所述第一基站发送的UE的上下文信息，所述UE的上下文信息为所述第一基站挂起已建立的RRC连接之前，向所述第一MME发送的；
所述发送模块，还配置为在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息。
根据第四方面的第五种可能的实现方式，在第六种可能的实现方式中，所述接收模块，还配置为在接收所述第一基站发送的UE的上下文信息之 后，接收所述第一基站发送的UE上下文请求消息，所述UE上下文请求消息为第一基站接收到所述UE发送的RRC连接恢复请求消息，且所述第一基站中未存储所述UE的上下文信息时，向所述第一MME发送的；
所述发送模块，还配置为向所述第一基站发送UE上下文响应消息，所述UE上下文响应消息用于指示所述第一基站向所述UE发送RRC连接恢复完成消息。
第五方面，本发明实施例提供一种信息传递系统，包括：第一移动性管理实体MME以及所述第一MME下的第一基站和第二基站，第二MME以及所述第二MME下的第三基站和第四基站，所述第一MME与所述第二MME相连接；
其中，所述第一基站、所述第二基站、所述第三基站和所述第四基站中均设置有如上述第三方面中任一项所述的信息传输装置，所述第一MME和所述第二MME中均设置有如上述第四方面中任一项所述的信息传输装置。
第六方面，本发明实施例提供一种计算机存储介质，所述计算机存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行上述基站侧的信息传输方法，或者执行上述MME侧的信息传输方法。
本发明实施例提供的信息传输方法、装置、系统和计算机存储介质，第一基站通过与UE建立RRC连接获取该UE的NB-IoT支持能力，该UE的NB-IoT支持能力可以包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项，并且该第一基站通过向第一MME发送已获取的UE的NB-IoT支持能力，指示第一MME存储该UE的NB-IoT支持能力，从而为后续的业务提供服务；本发明实施例通过合理的设计UE的NB-IoT支持能力的传递方式，提高了NB-IoT中无线连接业务的实用性。
附图说明
附图用来提供对本发明技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本发明的技术方案，并不构成对本 发明技术方案的限制。
图1为本发明实施例提供的一种信息传输方法的流程图；
图2为图1所示实施例提供的信息传输方法中一种建立RRC连接的信令交互流程图；
图3为本发明实施例提供的另一种信息传输方法的流程图；
图4为本发明实施例提供的又一种信息传输方法的流程图；
图5为本发明实施例提供的再一种信息传输方法的流程图；
图6为本发明实施例提供的还一种信息传输方法的流程图；
图7为本发明实施例提供的一种信息传输方法的信令流程图；
图8为本发明实施例提供的另一种信息传输方法的信令流程图；
图9为本发明实施例提供的还一种信息传输方法的流程图；
图10为本发明实施例提供的还一种信息传输方法的流程图；
图11为本发明实施例提供的还一种信息传输方法的流程图；
图12为本发明实施例提供的还一种信息传输方法的流程图；
图13为本发明实施例提供的还一种信息传输方法的流程图；
图14为本发明实施例提供的还一种信息传输方法的流程图；
图15为本发明实施例提供的又一种信息传输方法的信令流程图；
图16为本发明实施例提供的一种信息传输装置的结构示意图；
图17为本发明实施例提供的另一种信息传输方法的结构示意图；
图18为本发明实施例提供的再一种信息传输方法的流程图；
图19为本发明实施例提供的一种信息传递系统的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
上述背景技术中提到针对UE低成本和小数据量传输的特性，引入了不同的上行窄带接入能力，以及优化的数据传输方案。具体地，其一，NB-IoT针对UE低成本的特性，引入了不同的上行窄带接入能力，包括单频接入(Single-Tone)和多频接入(Multi-Tone)。不同窄带接入能力的UE，基站在上分配上行资源时只能分配相应窄带带宽的上行信道资源；此外，考虑到NB-IoT的200kHz频谱带宽比较小，每个上行频点同时承载两种不同窄带的物理信道容易产生频谱资源碎片，增加了物理上行共享信道(Physical Uplink Shared Channel，简称为：PUSCH)资源调度的复杂性等问题。其二，NB-IoT针对小数据量的特性，引入了优化的数据传输方案；其中，基于控制面传输的优化方案的基本思路是：将数据包打包成非接入层(Non-Access Stratum)分组数据单元(Packet Data Unit，简称为：PDU)，即NAS PDU，将该NAS PDU附着在控制面信令中传输；基于用户面传输的优化方案的基本思路是：终端和基站使用数据无线承载(Data Radio Bearer，简称为：DRB)传输数据，数据传输完毕后，双方保存承载信息上下文，接入层(Access Stratum，简称为：AS)安全上下文等，后续再次发送数据时，双方通过挂起-激活流程来快速恢复DRB承载的使用。
在长期演进(Long Term Evolution，简称为：LTE)系统中，如果要向处于空闲状态的UE发送数据的时候，MME需要向UE注册的跟踪区(Tracking Area，简称为：TA)内的所有演进型基站(evolved Node B，简称为：eNB)发送寻呼消息，然后eNB将该寻呼消息转发给UE。
下面通过具体的实施例对本发明的技术方案进行详细说明，本发明以下各实施例中信息传输方法涉及三个网元：基站、UE和MME，本发明各实施例中的基站通常为LTE系统中的eNB。本发明提供以下几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
在本发明的各种实施例中：第一基站获取UE的NB-IoT支持能力，其中，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；所述第一基站向第一MME发送所述UE的NB-IoT支持能力，以指示所述第一MME存储所述UE的NB-IoT支持能力，并指示所述第一MME在所述UE请求重新建立RRC连接或所述UE接入的基站改变时，将所述UE的NB-IoT支持能力发送给所述UE当前接入的基站，所述UE当前接入的基站在所述第一MME下；而所述第一MME接收第一基站发送的UE的NB-IoT支持能力；所述第一MME存储所述UE的NB-IoT支持能力；所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站。
图1为本发明实施例提供的一种信息传输方法的流程图。本实施例提供的信息传输方法适用于在NB-IoT中传输能力信息的情况中，该方法可以由信息传输装置执行，该信息传输装置通过硬件和软件结合的方式来实现，该装置可以集成在基站的处理器中，供处理器调用使用。如图1所示，本实施例的方法可以包括：
S110，第一基站通过与UE建立RRC连接获取UE的NB-IoT支持能力，该UE的NB-IoT支持能力包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项。
在本实施例中，触发第一基站与UE建立无线资源控制(Radio Resource Control，简称为：RRC)连接的原因例如包括UE进行初始附着，或UE的NB-IoT支持能力的发生变化，或第一基站为UE分配无线资源且该第一基站未获取到UE的NB-IoT支持能力，并且在上述几种情况中，第一基站获取UE的NB-IoT支持能力的具体方式如图2所示，为图1所示实施例提供的信息传输方法中一种建立RRC连接的信令交互流程图，即S110具体包括：
S1，第一基站接收UE发送的RRC连接请求消息。
S2，第一基站向UE发送RRC连接建立消息。
S3，第一基站接收UE发送的RRC连接建立完成消息。
S4，第一基站向第一MME发送初始UE消息，该初始UE消息中包括附着请求信息、跟踪区更新(Tracking Area Update，简称为：TAU)请求信息或服务请求信息。
S5，第一基站接收第一MME发送的初始上下文建立请求消息，该初始上下文建立请求消息中包括附着接受信息、TAU接受信息或未包括UE的NB-IoT支持能力。
在本实施例中，若第一基站与UE建立RRC连接的触发原因为UE进行初始附着，则S4的初始消息中具体包括附着请求信息，S5的初始上下文建立请求消息中具体包括附着接受信息；若第一基站与UE建立RRC连接的触发原因为UE的NB-IoT支持能力的发生变化，则S4的初始消息中具体包括TAU请求信息，S5的初始上下文建立请求消息中具体包括TAU接受信息；若第一基站为UE分配无线资源且该第一基站未获取到UE的NB-IoT支持能力，则S4的初始消息中具体包括服务请求信息，S5的初始上下文建立请求消息中未包括UE的NB-IoT支持能力。
S6，第一基站向UE发送UE能力查询消息。
S7，第一基站接收UE发送的UE能力信息指示消息，该UE能力信息指示消息中包括UE的NB-IoT支持能力。具体地，本实施例中的NB-IoT支持能力包含在UE能力信息指示消息内的UE无线能力(UE Radio Capability)信元中。
需要说明的是，上述流程，即S1～S7为建立RRC连接的一般性流程，在UE通过不同的基站重新建立RRC连接时，需要通过重新执行该流程将UE的NB-IoT支持能力发送给当前接入的基站，或者在UE的NB-IoT支持能力发生变化时，需要通过重新执行该流程将UE的当前的NB-IoT支持能力发送给基站。
S120，第一基站向第一MME发送UE的NB-IoT支持能力，以指示第一MME存储UE的NB-IoT支持能力，并指示第一MME在UE请求重新建立RRC连接或UE接入的基站改变时，将UE的NB-IoT支持能力发送给UE当前接入的基站，UE当前接入的基站在第一MME下。
在本实施例中，第一基站、UE和第一MME在通过执行图2所示的流程后，第一基站中具有UE的NB-IoT支持能力，随后，第一基站将UE的NB-IoT支持能力发送给第一MME，以便于第一MME将UE的NB-IoT支持能力存储在该第一MME中为后续的无线业务提供服务。例如，在UE请求重新建立RRC连接，或者UE接入的基站改变时，第一MME可以将UE的NB-IoT支持能力发送给UE当前接入的基站。
需要说明的是，本发明各实施例中的第一MME均为第一基站接入的MME，并且第一基站向第一MME发送UE的NB-IoT支持能力的目的都是为了指示第一MME存储UE的NB-IoT支持能力，在后续的无线业务中使用。
本实施例所提供的信息传输方法，第一基站通过与UE建立RRC连接获取该UE的NB-IoT支持能力，该UE的NB-IoT支持能力可以包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项，并且该第一基站通过向第一MME发送已获取的UE的NB-IoT支持能力，指示第一MME存储该UE的NB-IoT支持能力，从而为后续的业务提供服务；本实施例通过合理的设计UE的NB-IoT支持能力的传递方式，提高了NB-IoT中无线连接业务的实用性。
需要说明的是，在上述图1所示实施例的基础上，第一MME中已存储有UE的NB-IoT支持能力，并且可以将该UE的NB-IoT支持能力应用于后续无线业务中，以下各实施例均基于图1所示实施例；另外，本发明实施例中以第一基站侧为执行主体的各实施例，在说明后续业务的具体执行方式，可能会假设图1所示实施例中与UE建立RRC连接的不是第一基站，而是其他基站，例如同样为第一MME下的基站，再例如还可以为其它MME下的基站。
进一步地，图3为本发明实施例提供的另一种信息传输方法的流程图。本实施例的应用场景为，UE与第一基站在图1所示实例中建立的RRC连接已断开；或者，UE之前与第一MME下的第二基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与第一基站建立RRC连接，则本实施例提供的方法还包括：
S130，第一基站通过与UE重新建立RRC连接，从第一MME中获取UE的NB-IoT支持能力。
在本实施例中，第一基站从第一MME中获取UE的NB-IoT支持能力的具体方式可以参考图2所示的流程图，同样需要执行图2中的S1～S5，与上述图2所示流程不同的是，本实施例S4的初始UE消息中具体包括服务请求信息，S5中第一基站接收到的初始上下文建立请求消息中包括有UE的NB-IoT支持能力，该UE的NB-IoT支持能力即为第一MME在之前建立RRC连接时存储的，因此，不需要由第一基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力；也就是说，第一MME中存储UE的NB-IoT支持能力为后续业务服务提供了更便捷的应用方式，从而提高了业务效率。
图4为本发明实施例提供的又一种信息传输方法的流程图。本实施例的应用场景为，UE之前与第二MME下的第三基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与该第一基站建立RRC连接，则本实施例提供的方法还包括：
S130，第一基站接收第一MME发送的切换命令，该切换命令为第三基站发送给第二MME，并由第二MME转发给第一MME的，该切换命令中包括UE的NB-IoT支持能力和切换的目标地址，该目标地址为第一MME下的第一基站。
S140，第一基站解调切换命令，并获取切换命令中的UE的NB-IoT支持能力。
S150，第一基站将UE的NB-IoT支持能力发送给第一MME，以指示第一MME存储UE的NB-IoT支持能力。
在本实施例中，第一MME和第二MME接收到切换命令后，均不解析该切换命令的内容，也就是说，即使第一MME先于第一基站接收到该切换命令，但第一MME并不知道该切换命令中的具体内容，第一MME和第二MME的目的只是为了将该切换命令传递给目标基站，即第一基站，在第一基站解调该切换命令后，可以将解调出的UE的NB-IoT支持能力发送给第一MME，以指示该第一MME存储UE的NB-IoT支持能力，以便为后续 的无线业务提供服务。
图5为本发明实施例提供的再一种信息传输方法的流程图。本实施例的应用场景为，当前与UE已建立RRC连接的基站为第一基站，即在上述图1所示应用场景的基础上，本实施例提供的方法还包括：
S130，第一基站接收UE发送的测量信息，该测量信息向第一基站指示UE切换的目标基站为第四基站。
S140，第一基站通过测量信息指示第四基站获取包括UE的NB-IoT支持能力的切换请求消息，切换请求消息用于指示第二基站根据UE的NB-IoT支持能力为UE分配无线资源。
在本实施例中，UE切换的目标基站，即第四基站可以与第一基站均在第一MME下，还可以为其它MME下的基站，在该第四基站所属的网络位置不同时，其获取UE的NB-IoT支持能力的方式也有所不同。
可选地，若第一基站与第四基站均在第一MME下，且第一基站和第四基站之间通过X2接口连接，则本实施例中的S140可以替换为：第一基站通过X2接口向第四基站发送包括UE的NB-IoT支持能力的切换请求消息，X2接口为连接基站的接口，同一MME下的基站可以通过X2接口进行直接传输，具体地，UE的NB-IoT支持能力包含在第一基站发送的切换请求消息(Handover Request)中的源到目标的透明容器(Source to Target Transparent Container)信元中。
可选地，若第一基站和第四基站之间未设置有X2接口，则本实施例中的S140可以替换为：第一基站向第一MME发送切换请求消息，该切换请求消息用于指示第一MME向第四基站转发切换请求消息，其中，第一基站与第四基站均在第一MME下；或者，第一基站向第一MME发送切换请求消息，该切换请求消息用于指示第一MME向第二MME转发切换请求消息，以使得第二MME向第四基站转发切换请求消息，其中，第四基站在第二MME下。
需要说明的是，本实施例中的切换请求消息的传输时通过S1接口实现的，该S1接口为基站与MME间的接口；其中，第一基站向第一MME发送的切换请求消息，第一MME向第四基站发送的切换请求消息，第一MME 向第二MME发送的切换请求消息，以及第二MME向第四基站发送的切换请求消息中，源到目标的透明容器信元中包含了UE的NB-IoT支持能力。
图6为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站在与UE建立RRC的过程中，已获取到UE的上下文信息，该UE的上下文信息包括承载信息上下文、接入层(Access Stratum，简称为：AS)安全上下文中的一项或多项，即在上述图1所示应用场景的基础上，则本实施例提供的方法还包括：
S130，第一基站确定挂起已建立的RRC连接。
S140，第一基站向第一MME发送UE的上下文信息，该UE的上下文信息用于指示第一MME在UE发起基于用户面传输的优化方案时，向UE接入的基站发送UE的上下文信息。
S150，第一基站挂起与UE已建立的RRC连接。
进一步地，本实施例在上述方法的基础上，在S140之后还包括：
S160，第一基站接收UE发送的RRC连接恢复请求消息。
S170，若第一基站中存储了UE的上下文信息，向UE发送RRC连接恢复完成消息。
S180，若第一基站中未存储UE的上下文信息，向第一MME发送UE上下文请求消息，并接收到第一MME返回的UE上下文响应消息，从而向UE发送RRC连接恢复完成消息。
需要说明的是，本实施例中的S170和S180是择一执行的，现有技术中，对于基于用户面传输的优化方案，目前的标准中提出的方法是：将UE的上下文信息保存在原先基站，UE移动到新基站并发起业务时，新基站通过X2口获取原先基站保存的上下文信息，或者重新建立UE上下文信息，对于原先基站与新基站之间没有X2接口的情况下，只能重新建立UE上下文信息，不能充分发挥该基于用户面传输优化方案的优势。本实施例通过将UE的上下文信息发送给第一基站接入的第一MME中，在UE通过激活流程恢复RRC连接时，无需重新建立UE上下文信息，也不受基站间 X2接口的限制。
需要说明的是，本发明上述各实施例中基站与MME之间，基站与基站之间，以及MME与MME之间传输UE的NB-IoT支持能力的同时，还可以传输小区的NB-IoT支持能力，即通过专用信令传递小区能力。例如S120中第一基站向第一MME发送的UE的NB-IoT支持能力中，还携带有第一基站下每个小区的NB-IoT支持能力，该第一基站下每个小区的NB-IoT支持能力包括第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；在例如图4所示实施例中的切换命令中还包括第三基站下每个小区的NB-IoT支持能力，该第三基站下每个小区的NB-IoT支持能力包括第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。在上述方式中，传递小区能力的专用信令例如包括：切换请求消息和切换请求响应消息，也可以通过请求失败里的失败原因来间接携带。
图7为本发明实施例提供的一种信息传输方法的信令流程图。本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站和第五基站之间通过X2接口连接，本实施例具体说明小区能力的传递方式，则本实施例提供的方法还包括：
S101，第一基站通过X2接口向第五基站发送第一基站下每个小区的NB-IoT支持能力，第一基站下每个小区的NB-IoT支持能力包括第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
S102，第一基站接收第五基站通过X2接口发送的第五基站下每个小区的NB-IoT支持能力，第五基站下每个小区的NB-IoT支持能力包括第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
本实施例中第一基站与第五基站间传输的不是UE的能力，而是小区能力，当连接模式下负荷均衡或移动性导致的基站间小区变更时，UE选择的目标小区的能力需要与UE的能力相匹配，即源基站需要知道目标小区的能力，目标小区的基站也需要知道源小区的能力，因此，小区能力的传输影 响着UE切换的成功率。另外，本实施例中传递小区能力的公共信令例如包括：X2建立请求消息和X2建立响应消息，基站配置更新消息和消息配置更新确认消息，以及资源状态请求消息和资源状态响应消息等。
需要说明的是，图1所示实施例提供了一种传输UE的上行窄带接入能力的方式，在本发明提供的信息传输方法中，还可以通过其他方式传输UE的上行窄带接入能力；具体地，物理随机接入信道(Physical Random Access Channel，简称为：PRACH)针对UE的上行窄带接入能力设计了不同的传输格式和类型，如图8所示，为本发明实施例提供的另一种信息传输方法的信令流程图，本实施例仅针对UE的上行窄带接入能力的传输，即本实施例提供的方法可以包括：
S101，第一基站接收UE通过PRACH发送的UE的上行窄带接入能力。
S102，第一基站根据PRACH的类型确定UE的上行窄带接入能力为单频接入或多频接入。
如图8所示，当第一基站收到Single-Tone类型的PRACH时，就认为发起PRACH过程的UE是一个Single-Tone能力的UE；当第一基站收到Multi-Tone类型的PRACH时，就认为发起PRACH过程的UE是一个Multi-Tone能力的UE。
图9为本发明实施例提供的还一种信息传输方法的流程图。本实施例提供的信息传输方法适用于在NB-IoT执行寻呼控制的情况中，该方法可以由信息传输装置执行，该信息传输装置通过硬件和软件结合的方式来实现，该装置可以集成在MME的处理器中，供处理器调用使用。如图9所示，本实施例的方法可以包括：
S210，第一MME接收第一基站发送的UE的NB-IoT支持能力，该UE的NB-IoT支持能力为第一基站通过与UE建立RRC连接获取的，该UE的NB-IoT支持能力包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项。
在本实施例中，触发第一基站与UE建立RRC连接的原因同样可以包括UE进行初始附着，UE的NB-IoT支持能力的发生变化，或第一基站为UE分配无线资源，且第一基站未获取到UE的NB-IoT支持能力，在上述 几种情况中，第一基站获取UE的NB-IoT支持能力的具体方式同样可以参照图2所示方式，故在此不再赘述。
S220，第一MME存储UE的NB-IoT支持能力。
S230，第一MME在UE请求通过第二基站建立RRC连接或UE从第一基站切换到第一MME下的第二基站时，将UE的NB-IoT支持能力发送给第二基站。
在本实施例中，第一基站、UE和第一MME在通过执行图2所示的流程后，第一基站中具有UE的NB-IoT支持能力，随后，第一MME接收并存储UE的NB-IoT支持能力，以便于第一MME为后续的业务提供服务。例如，在UE请求通过第二基站建立RRC连接，或者UE从第一基站切换到第二MME下的第二基站时，第一MME可以将UE的NB-IoT支持能力发送给UE当前接入的基站。
需要说明的是，本发明各实施例中的第一MME均为第一基站接入的MME，并且第一MME存储第一基站发送UE的NB-IoT支持能力的目的都是为了在后续的无线业务中使用。
本实施例所提供的信息传输方法，第一MME接收第一基站发送的UE的NB-IoT支持能力，该UE的NB-IoT支持能力为第一基站通过与UE建立RRC连接获取的，该UE的NB-IoT支持能力可以包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项，并且第一MME通过存储UE的NB-IoT支持能力，在UE发起后续的无线业务时提供服务；本实施例通过合理的设计UE的NB-IoT支持能力的传递方式，提高NB-IoT中无线连接业务的实用性。
需要说明的是，在上述图9所示实施例的基础上，第一MME中已存储有UE的NB-IoT支持能力，并且可以将该UE的NB-IoT支持能力应用于后续的无线业务中，以下各实施例均基于图9所示实施例；另外，本发明为以第一MME侧为执行主体的各实施例，在说明后续业务的具体执行方式，可能会设图1所示实施例中与UE建立RRC连接的不是第一基站，而是其他基站，例如同样为第一MME下的基站，再例如还可以为其它MME下的基站。
进一步地，图10为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，UE请求通过第二基站建立RRC；或者，UE需要从第一基站切换到第一MME下的第二基站，即UE需要与第二基站建立RRC连接，则本实施例提供的方法还包括：
S240，第一MME接收第二基站发送的初始UE消息，该初始UE消息中包括服务请求信息。
S250，第一MME向第二基站发送初始上下文建立请求消息，该初始上下文建立请求消息中包括UE的NB-IoT支持能力。
在本实施例中，第一MME接收到第二基站发送的初始UE消息之前，第二基站执行的步骤可以参考图2所示流程中的S1～S3，与UE进行消息交互的具体是第二基站。本实施例中第一MME向第二基站发送的初始上下文建立请求消息中包括的UE的NB-IoT支持能力，为第一MME在之前建立RRC连接时存储的。因此，不需要由第二基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力，即不需要执行图2所示实施例中的S6～S7；也就是说，第一MME中存储UE的NB-IoT支持能力为后续业务服务提供了更便捷的应用方式，从而提高了业务效率。
图11为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，UE之前与第二MME下的第三基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与该第一基站建立RRC连接，则本实施例提供的方法还包括：
S240，第一MME向第一基站发送切换命令，该切换命令为第三基站发送给第二MME，并由第二MME转发给第一MME的，该切换命令中包括UE的NB-IoT支持能力和切换的目标地址，该目标地址为第一MME下的第一基站。
S250，第一MME接收并存储第一基站发送的UE的NB-IoT支持能力，该UE的NB-IoT支持能力为第一基站通过解调切换命令获取的。
在本实施例中，第一MME和第二MME接收到切换命令后，均不解析该切换命令的内容，也就是说，即使第一MME先于第一基站接收到该切换命令，但第一MME并不知道该切换命令中的具体内容，第一MME和第二 MME的目的只是为了将该切换命令传递给目标基站，即第一基站，在第一基站解调该切换命令后，可以将解调出的UE的NB-IoT支持能力发送给第一MME，以指示该第一MME存储UE的NB-IoT支持能力，以便为后续的无线业务提供服务。
图12为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，第一基站准备为UE分配无线资源，该第一基站同样需要通过与UE建立RRC连接获取UE的NB-IoT支持能力，在本实施例中，第一基站接入的第一MME已存储有UE的NB-IoT支持能力，但是且该第一基站无法获取UE的NB-IoT支持能力，则本实施例提供的方法还包括：
S240，第一MME接收第一基站发送的初始UE消息，该初始UE消息中包括服务请求信息。
S250，第一MME向第一基站发送初始上下文建立请求消息，且初始上下文建立请求消息中未包括UE的NB-IoT支持能力。
S260，第一MME接收并存储第一基站发送的UE的NB-IoT支持能力，该UE的NB-IoT支持能力为第一基站通过向UE发送UE能力查询消息获取的，并且UE的NB-IoT支持能力用于第一基站为UE分配无线资源。
需要说明的是，本实施例中的第一基站同样需要执行图2中的S1～S7，与上述图2所示流程不同的是，本实施例S4的初始UE消息中具体包括服务请求信息，S5中第一基站接收到的初始上下文建立请求消息中未包括有UE的NB-IoT支持能力，在该第一基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力后，可以通过该UE的NB-IoT支持能力为UE分配无线资源。
图13为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，当前与UE已建立RRC连接的基站为第一基站，UE需要从第一基站切换到第四基站，且第一基站和第四基站之间未设置有X2接口，即在上述图9所示应用场景的基础上，则本实施例提供的方法还包括：
S240，第一MME接收第一基站发送的切换请求，该切换请求为第一基站接收到UE发送的测量信息后发送给第一MME的，该测量信息用于指示UE切换的目标基站为第四基站。
S250，第一MME向第四基站转发切换请求消息，其中，第一基站与第四基站均在第一MME下；或者，第一MME向第二MME发送切换请求，切换请求用于指示第二MME向第四基站转发切换请求消息，其中，第四基站在第二MME下。
在本实施例中，UE切换的目标基站，即第四基站可以与第一基站均在第一MME下，还可以为其它MME下的基站，在该第四基站所属的网络位置不同时，其获取UE的NB-IoT支持能力的方式也有所不同。
需要说明的是，本实施例中的切换请求消息的传输时通过S1接口实现的，该S1接口为基站与MME间的接口；其中，第一基站向第一MME发送的切换请求消息，第一MME向第四基站发送的切换请求消息，第一MME向第二MME发送的切换请求消息，以及第二MME向第四基站发送的切换请求消息中，源到目标的透明容器信元中包含了UE的NB-IoT支持能力。
图14为本发明实施例提供的还一种信息传输方法的流程图。本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站在与UE建立RRC的过程中，已获取到UE的上下文信息，该UE的上下文信息包括承载信息上下文、AS安全上下文中的一项或多项，即在上述图9所示应用场景的基础上，则本实施例提供的方法还包括：
S240，第一MME接收第一基站发送的UE的上下文信息，该UE的上下文信息为第一基站挂起已建立的RRC连接之前向第一MME发送的。
S250，第一MME在UE发起基于用户面传输的优化方案时，向UE接入的基站发送UE的上下文信息。
进一步地，本实施例在上述方法的基础上，在S250之后还包括：
S260，第一MME接收第一基站发送的UE上下文请求消息，该UE上下文请求消息为第一基站接收到UE发送的RRC连接恢复请求消息，且第一基站中未存储UE的上下文信息时，向第一MME发送的。
S270，第一MME向第一基站发送UE上下文响应消息，UE上下文响应消息用于指示第一基站向UE发送RRC连接恢复完成消息。
需要说明的是，本实施例中的S260和S270是择一执行的，现有技术 中，对于基于用户面传输的优化方案，目前的标准中提出的方法是：将UE的上下文信息保存在原先基站，UE移动到新基站并发起业务时，新基站通过X2口获取原先基站保存的上下文信息，或者重新建立UE上下文信息，对于原先基站与新基站之间没有X2接口的情况下，只能重新建立UE上下文信息，不能充分发挥该基于用户面传输优化方案的优势。本实施例通过将UE的上下文信息发送给第一基站接入的第一MME中，在UE通过激活流程恢复RRC连接时，无需重新建立UE上下文信息，也不受基站间X2接口的限制。
图15为本发明实施例提供的又一种信息传输方法的信令流程图。本实施例提供的信息传输方法适用于在NB-IoT中传输能力信息的情况中，该方法可以由UE、基站和MME执行。如图14所示，本实施例的方法可以包括：
S301，第一基站通过与UE建立RRC连接获取UE的NB-IoT支持能力，其中，该UE的NB-IoT支持能力包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项。
本实施例中，触发第一基站与UE建立RRC连接的原因同样包括UE进行初始附着或UE的NB-IoT支持能力的发生变化，并且在上述两种情况中，第一基站获取UE的NB-IoT支持能力的方式同样可以如图2所示流程，即第一基站和UE通过图2中信令交互，获取到UE的NB-IoT支持能力。具体实现方式与图2所示内容相同，故在此不再赘述。
S302，第一基站向第一MME发送UE的NB-IoT支持能力。
S303，第一MME存储UE的NB-IoT支持能力。
在本实施例中，第一MME存储UE的NB-IoT支持能力的目的是为后续的无线业务提供服务。例如，在UE请求重新建立RRC连接，或者UE接入的基站改变时，第一MME可以将UE的NB-IoT支持能力发送给UE当前接入的基站。
需要说明的是，本实施例中的第一基站和第一MME为UE初始建立RRC连接时接入的，即第一MME中存储了UE的NB-IoT支持能力，在本实施例的后续应用场景中，第一基站为源基站，第一MME为源MME。
进一步地，本实施例提供的方法，UE需要与第二基站建立的RRC连接；或者，UE需要从而第一基站切换到第一MME下的第二基站，则本实施例提供的方法还包括：
S304，第二基站通过与UE建立RRC连接，从第一MME中获取UE的NB-IoT支持能力。
在本实施例中，同样可以参考图2所示流程，UE、第二基站和第一MME可以通过执行S1～S5，其中，S4的初始UE消息中具体包括服务请求信息，在S5中第一MME发送的初始上下文建立请求消息中包括有UE的NB-IoT支持能力，该UE的NB-IoT支持能力即为第一MME在之前建立RRC连接时存储的，因此，不需要由第一基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力。需要说明的是，本实施例中的第二基站可以是之前与UE建立RRC连接的第一基站，也可以是第一MME下的其它基站。
进一步地，本实施例提供的方法，当前与UE建立RRC连接的为第一MME下的第一基站，UE需要切换到第二MME下的第三基站，即UE需要与该第三基站建立RRC连接，则本实施例提供的方法还包括：
S305，第一基站向第一MME发送切换命令，该切换命令中包括UE的NB-IoT支持能力和切换的目标地址，该目标地址为第二MME下的第三基站。
S306，第一MME向第二MME发送切换命令。
S307，第二MME向第三基站发送切换命令。
S308，第三基站解调切换命令，并获取切换命令中的UE的NB-IoT支持能力。
S309，第三基站将UE的NB-IoT支持能力发送给第二MME。
S310，第二MME存储UE的NB-IoT支持能力。
在本实施例中，第三MME存储UE的NB-IoT支持能力之后，同样可以为后续的无线业务提供服务，即本实施例提供的方法还包括：
S311，第四基站通过与UE建立RRC连接，从第二MME中获取UE 的NB-IoT支持能力。本实施例中的S311的具体实现方式与S304的具体实现方式相同，需要说明的是，本实施例中的第四基站可以是之前与UE建立RRC连接的第三基站，也可以是第二MME下的其它基站。
进一步地，在本实施例提供的方法中，当前与UE建立RRC连接的任意一个基站，例如为第二MME下的第三基站，若该第三基站准备为UE分配无线资源，则可以通过执行S1～S5来获取第二MME发送的初始上下文建立请求消息中，此时，若该初始上下文建立请求消息中并未包括UE的NB-IoT支持能力时，本实施例提供的方法还包括：
S312，第三基站向UE发起UE能力查询消息。
S313，第三基站接收UE发送的UE能力信息指示消息，该UE能力信息指示消息中包括UE的NB-IoT支持能力。
进一步地，本实施例提供的方法，当前与UE建立RRC连接的为第一MME下的第一基站，本实施例提供的方法还包括：
S314，第一基站接收UE发送的测量信息，该测量信息向第一基站指示UE切换的目标基站为第四基站。
可选地，若第一基站与第四基站均在第一MME下，且第一基站和第四基站之间通过X2接口连接，则S314之后还包括：
S315，第一基站通过X2接口向第四基站发送包括UE的NB-IoT支持能力的切换请求消息。
可选地，若第一基站和第四基站之间未设置有X2接口，则S313之后还包括：
S315，第一基站向第一MME发送切换请求消息。
S316，第一MME向第四基站转发切换请求消息。本实施例中的第一基站与第四基站均在第一MME下。
在本实施例的另一种可能的实现方式中，S314之后还可以包括：
S315，第一基站向第一MME发送切换请求消息。
S316，第一MME向第二MME发送切换请求消息。
S317，第二MME向第四基站转发切换请求消息。本实施例中的第一基站在第一MME下，第四基站在第二MME下。
进一步地，当前与UE建立RRC连接的为第一MME下的第一基站，并且第一基站在与UE建立RRC的过程中，已获取到UE的上下文信息，该UE的上下文信息包括承载信息上下文、AS安全上下文中的一项或多项，本实施例提供的方法还包括：
S318，第一基站确定挂起已建立的RRC连接。
S319，第一基站判断第一MME中是否存储有UE的上下文信息；若否，则执行S320；若是，则执行S321。
S320，第一基站向第一MME发送UE的上下文信息，该UE的上下文信息用于指示第一MME在UE发起基于用户面或控制面传输的优化方案时，向UE接入的基站发送UE的上下文信息。
S321，第一基站挂起与UE已建立的RRC连接。
本实施例在上述方法的基础上，在S321之后还包括：
S322，第一基站接收UE发送的RRC连接恢复请求消息。
S323，第一基站判断是否存储UE的上下文信息。若否，则执行S324；若是，则执行S326。
S324，第一基站向第一MME发送UE上下文请求消息。
S325，第一MME向第一基站返回的UE上下文响应消息。
S326，第一基站向UE发送RRC连接恢复完成消息。
图16为本发明实施例提供的一种信息传输装置的结构示意图。本实施例提供的信息传输装置适用于在NB-IoT中传输能力信息的情况中，该信息传输装置通过硬件和软件结合的方式来实现，该装置可以集成在基站的处理器中，供处理器调用使用。如图16所示，本实施例的装置可以包括：接收模块11和发送模块12。
其中，接收模块11和发送模块12，配置为获取UE的NB-IoT支持能力，其中，UE的NB-IoT支持能力包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项。
所述接收模块11和发送模块12，配置为通过与UE建立RRC连接获取所述UE的NB-IoT支持能力。
本实施例中，触发第一基站与UE建立RRC连接的原因例如包括UE进行初始附着，或UE的NB-IoT支持能力的发生变化，或第一基站为UE分配无线资源且该第一基站未获取到UE的NB-IoT支持能力。通过与UE建立无线RRC连接获取UE的NB-IoT支持能力的具体方式为：接收模块11，配置为接收UE发送的RRC连接请求消息；发送模块12，配置为向UE发送RRC连接建立消息；接收模块11，配置为接收UE发送的RRC连接建立完成消息；发送模块12，配置为向第一MME发送初始UE消息，初始UE消息中包括附着请求信息、TAU请求信息或未包括UE的NB-IoT支持能力；接收模块11，配置为接收第一MME发送的初始上下文建立请求消息，初始上下文建立请求消息中包括附着接受信息、TAU接受信息或或未包括UE的NB-IoT支持能力；发送模块12，配置为向UE发送UE能力查询消息；接收模块11，配置为接收UE发送的UE能力信息指示消息，UE能力信息指示消息中包括UE的NB-IoT支持能力。
需要说明的是，上述第一基站通过接收模块11和发送模块12，获取UE的NB-IoT支持能力，为建立RRC连接的一般性方式。
发送模块12，还配置为向第一MME发送UE的NB-IoT支持能力，以指示第一MME存储UE的NB-IoT支持能力，并指示第一MME在UE请求重新建立RRC连接或UE接入的基站改变时，将UE的NB-IoT支持能力发送给UE当前接入的基站，UE当前接入的基站在第一MME下。
需要说明的是，本发明各实施例中的第一MME均为第一基站接入的MME，并且第一基站向第一MME发送UE的NB-IoT支持能力的目的都是为了指示第一MME存储UE的NB-IoT支持能力，在后续的无线业务中使用。
本发明实施例提供的信息传输装置配置为执行本发明图1所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
需要说明的是，在上述图16所示实施例的基础上，第一MME中已存 储有UE的NB-IoT支持能力，并且可以将该UE的NB-IoT支持能力应用于后续无线业务中，以下各实施例均基于图16所示实施例；另外，本发明为以第一基站侧为执行主体的各实施例，在说明后续业务的具体执行方式，可能会假设图16所示实施例中与UE建立RRC连接的不是第一基站，而是其他基站，例如同样为第一MME下的基站，再例如还可以为其它MME下的基站。
进一步地，本实施例的应用场景为，UE与第一基站在图16所示实例中建立的RRC连接已断开；或者，UE之前与第一MME下的第二基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与第一基站建立RRC连接，本实施例中的接收模块11和发送模块12，还配置为通过与UE重新建立RRC连接，从第一MME中获取UE的NB-IoT支持能力；其具体实现方式为：接收模块11，还配置为接收UE发送的RRC连接请求消息；发送模块12，还配置为向UE发送RRC连接建立消息；接收模块11，还配置为接收UE发送的RRC连接建立完成消息；发送模块12，还配置为向第一MME发送初始UE消息，初始UE消息中包括服务请求信息；接收模块11，还配置为接收第一MME发送的初始上下文建立请求消息，初始上下文建立请求消息中包括UE的NB-IoT支持能力。
本发明实施例提供的信息传输装置配置为执行本发明图3所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
进一步地，图17为本发明实施例提供的另一种信息传输方法的结构示意图。本实施例的应用场景为，UE之前与第二MME下的第三基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与该第一基站建立RRC连接，具体实现方式为：接收模块11，还配置为接收第一MME发送的切换命令，切换命令为第三基站发送给第二MME，并由第二MME转发给第一MME的，其中，切换命令中包括UE的NB-IoT支持能力和切换的目标地址，目标地址为第一MME下的第一基站；本实施例提供的信息传输装置还包括：解调模块13，配置为解调切换命令，并获取切换命令中的UE的NB-IoT支持能力；发送模块12，还配置为将UE的NB-IoT 支持能力发送给第一MME，以指示第一MME存储UE的NB-IoT支持能力。
本发明实施例提供的信息传输装置配置为执行本发明图4所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
进一步地，本实施例的应用场景为，当前与UE已建立RRC连接的基站为第一基站，即在上述图16所示应用场景的基础上，接收模块11，还配置为接收UE发送的测量信息，测量信息向第一基站指示UE切换的目标基站为第四基站；发送模块12，还配置为通过测量信息用于指示第四基站获取包括UE的NB-IoT支持能力的切换请求消息，切换请求消息用于指示第二基站根据UE的NB-IoT支持能力为UE分配无线资源。
在本实施例中，UE切换的目标基站，即第四基站可以与第一基站均在第一MME下，还可以为其它MME下的基站，在该第四基站所属的网络位置不同时，其获取UE的NB-IoT支持能力的方式也有所不同。
可选地，若第一基站与第四基站均在第一MME下，且第一基站和第四基站之间通过X2接口连接，则发送模块12配置为通过测量信息用于指示第四基站获取包括UE的NB-IoT支持能力的切换请求消息，是指：发送模块12，还配置为通过X2接口向第四基站发送包括UE的NB-IoT支持能力的切换请求消息。
可选地，若第一基站和第四基站之间未设置有X2接口，则发送模块12配置为通过测量信息用于指示第四基站获取包括UE的NB-IoT支持能力的切换请求消息，是指：向第一MME发送切换请求消息，切换请求消息用于指示第一MME向第四基站转发切换请求消息，其中，第一基站与第四基站均在第一MME下；或者，向第一MME发送切换请求消息，切换请求消息用于指示第一MME向第二MME转发切换请求消息，以使得第二MME向第四基站转发切换请求消息，其中，第四基站在第二MME下。需要说明的是，本实施例中的切换请求消息的传输时通过S1接口实现的，该S1接口为基站与MME间的接口。
本发明实施例提供的信息传输装置配置为执行本发明图5所示实施例 提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
进一步地，本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站在与UE建立RRC的过程中，已获取到UE的上下文信息，该UE的上下文信息包括承载信息上下文、AS安全上下文中的一项或多项，在上述图17所示装置的结构基础上，则本实施例提供的装置还包括：确定模块14和挂起模块15；其中，确定模块14，配置为确定挂起已建立的RRC连接；发送模块12，还配置为向第一MME发送UE的上下文信息，UE的上下文信息配置为指示第一MME在UE发起基于用户面传输的优化方案时，向UE接入的基站发送UE的上下文信息；挂起模块15，配置为挂起与UE建立的RRC连接。
在图17所示实施例的基础上，本实施例提供的装置中，接收模块11，还配置为在挂起模块15挂起与UE建立的RRC连接之后，接收UE发送的RRC连接恢复请求消息；信息传输装置还包括：判断模块16，配置为判断第一基站中是否存储了UE的上下文信息；发送模块12，还配置为在判断模块16判断出第一基站中存储了UE的上下文信息时，向UE发送RRC连接恢复完成消息；发送模块12，还配置为在判断模块16判断出第一基站中未存储UE的上下文信息时，向第一MME发送UE上下文请求消息；接收模块11，还配置为接收第一MME返回的UE上下文响应消息；相应地，发送模块12，还配置为向UE发送RRC连接恢复完成消息。
本发明实施例提供的信息传输装置配置为执行本发明图6所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
需要说明的是，本发明上述各实施例中基站与MME之间，基站与基站之间，以及MME与MME之间传输UE的NB-IoT支持能力的同时，还可以传输小区的NB-IoT支持能力，即通过专用信令传递小区能力。例如S120中第一基站向第一MME发送的UE的NB-IoT支持能力中，还携带有第一基站下每个小区的NB-IoT支持能力，该第一基站下每个小区的NB-IoT支持能力包括第一基站下每个小区的上行窄带接入能力，以及基于用户面和 控制面传输优化方案的支持能力；在例如上述实施例中的切换命令中还包括第三基站下每个小区的NB-IoT支持能力，该第三基站下每个小区的NB-IoT支持能力包括第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。在上述方式中，传递小区能力的专用信令例如包括：切换请求消息和切换请求响应消息，也可以通过请求失败里的失败原因来间接携带。
进一步地，本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站和第五基站之间通过X2接口连接，本实施例中具体说明小区能力的传输方式；发送模块12，还配置为通过X2接口向第五基站发送第一基站下每个小区的NB-IoT支持能力，第一基站下每个小区的NB-IoT支持能力包括第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；接收模块11，还配置为接收第五基站通过X2接口发送的第五基站下每个小区的NB-IoT支持能力，第五基站下每个小区的NB-IoT支持能力包括第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
本发明实施例提供的信息传输装置配置为执行本发明图7所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
需要说明的是，图16所示实施例提供了一种传输UE的上行窄带接入能力的方式，在本发明提供的信息传输装置中，还可以通过其他方式传输UE的上行窄带接入能力；具体地，接收模块11，还配置为接收UE PRACH发送的UE的上行窄带接入能力；相应地，确定模块14，还配置为根据PRACH的类型确定UE的上行窄带接入能力为单频接入或多频接入。
本发明实施例提供的信息传输装置配置为执行本发明图8所示实施例提供信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
实际应用时，所述接收模块11及发送模块12可由信息传输装置中的收发机实现；所述解调模块13、确定模块14、挂起模块15及判断模块16可由信息传输装置中的处理器实现。
图18为本发明实施例提供的再一种信息传输装置的结构示意图。本实施例提供的信息传输装置适用于在NB-IoT中传输能力信息的情况中，该信息传输装置通过硬件和软件结合的方式来实现，该装置可以集成在MME的处理器中，供处理器调用使用。如图18所示，本实施例的装置可以包括：接收模块21、存储模块22和发送模块23。
其中，接收模块21，配置为接收第一基站发送的用户设备UE的NB-IoT支持能力，UE的NB-IoT支持能力为第一基站获取的，UE的NB-IoT支持能力包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项。
所述第一基站可通过与所述UE建立RRC连接获取所述UE的NB-IoT支持能力。
在本实施例中，触发接收模块21与UE建立RRC连接的原因同样可以包括UE进行初始附着，UE的NB-IoT支持能力的发生变化，或第一基站为UE分配无线资源，且第一基站未获取到UE的NB-IoT支持能力，在上述几种情况中，第一基站获取UE的NB-IoT支持能力的具体方式同样可以参照图2所示方式，故在此不再赘述。
存储模块22，配置为存储UE的NB-IoT支持能力。
发送模块23，配置为在UE请求通过第二基站建立RRC连接或UE从第一基站切换到第一MME下的第二基站时，将UE的NB-IoT支持能力发送给第二基站。
在本实施例中，第一基站、UE和第一MME在通过执行图2所示的流程后，第一基站中具有UE的NB-IoT支持能力，随后，第一MME接收并存储UE的NB-IoT支持能力，以便于第一MME为后续的业务提供服务。例如，在UE请求通过第二基站建立RRC连接，或者UE从第一基站切换到第二MME下的第二基站时，第一MME可以将UE的NB-IoT支持能力发送给UE当前接入的基站。
需要说明的是，本发明各实施例中的第一MME均为第一基站接入的MME，并且第一MME存储第一基站发送UE的NB-IoT支持能力的目的都是为了在后续的无线业务中使用。
需要说明的是，在上述图18所示实施例的基础上，第一MME的存储模块22中已存储有UE的NB-IoT支持能力，并且可以将该UE的NB-IoT支持能力应用于后续的无线业务中，以下各实施例均基于图18所示实施例；另外，本发明为以第一MME侧为执行主体的各实施例，在说明后续业务的具体执行方式，可能会假设图18所示实施例中与UE建立RRC连接的不是第一基站，而是其他基站，例如同样为第一MME下的基站，再例如还可以为其它MME下的基站。
进一步地，本实施例的应用场景为，UE请求通过第二基站建立RRC；或者，UE需要从第一基站切换到第一MME下的第二基站，即UE需要与第二基站建立RRC连接，则本实施例提供的装置中，接收模块21，还配置为接收第二基站发送的初始UE消息，初始UE消息中包括服务请求信息；发送模块23，还配置为向第二基站发送初始上下文建立请求消息，初始上下文建立请求消息中包括UE的NB-IoT支持能力。
在本实施例中，接收模块21接收到第二基站发送的初始UE消息之前，第二基站执行的步骤可以参考图2所示流程中的S1～S3，与UE进行消息交互的具体是第二基站。本实施例中第一MME向第二基站发送的初始上下文建立请求消息中包括的UE的NB-IoT支持能力，为第一MME在之前建立RRC连接时存储的。因此，不需要由第二基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力，即不需要执行图2所示实施例中的S6～S7；也就是说，第一MME中存储UE的NB-IoT支持能力为后续业务服务提供了更便捷的应用方式，从而提高了业务效率。
进一步地，本实施例的应用场景为，UE之前与第二MME下的第三基站建立RRC连接，此时UE需要切换到第一MME下的第一基站，即UE需要与该第一基站建立RRC连接，则本实施例提供的装置中，发送模块23，还配置为向第一基站发送切换命令，切换命令为第三基站发送给第二MME，并由第二MME转发给第一MME的，其中，切换命令中包括UE的NB-IoT支持能力和切换的目标地址，目标地址为第一MME下的第一基站；接收模块21，还配置为接收第一基站发送的UE的NB-IoT支持能力，UE的NB-IoT支持能力为第一基站通过解调切换命令获取的；存储模块22， 还配置为存储接收模块21接收的UE的NB-IoT支持能力。
进一步地，本实施例的应用场景为，第一基站准备为UE分配无线资源，该第一基站同样需要通过与UE建立RRC连接获取UE的NB-IoT支持能力，在本实施例中，第一基站接入的第一MME已存储有UE的NB-IoT支持能力，且该第一基站无法获取UE的NB-IoT支持能力，则本实施例提供的装置中，接收模块21，还配置为接收第一基站发送的初始UE消息，初始UE消息中包括服务请求信息；发送模块23，还配置为向第一基站发送初始上下文建立请求消息，且初始上下文建立请求消息中未包括UE的NB-IoT支持能力；接收模块21，还配置为接收第一基站发送的UE的NB-IoT支持能力，UE的NB-IoT支持能力为第一基站通过向UE发送UE能力查询消息获取的，并且UE的NB-IoT支持能力用于第一基站为UE分配无线资源；存储模块22，还配置为存储接收模块21接收的UE的NB-IoT支持能力。
需要说明的是，本实施例中的第一基站同样需要执行图2中的S1～S7，与上述图2所示流程不同的是，本实施例S4的初始UE消息中具体包括服务请求信息，S5中第一基站接收到的初始上下文建立请求消息中未包括有UE的NB-IoT支持能力，在该第一基站通过向UE发起UE查询消息来获取该UE的NB-IoT支持能力后，可以通过该UE的NB-IoT支持能力为UE分配无线资源。
进一步地，本实施例的应用场景为，当前与UE已建立RRC连接的基站为第一基站，UE需要从第一基站切换到第四基站，且第一基站和第四基站之间未设置有X2接口，则本实施例提供的装置中，发送模块23，还配置为向第四基站转发切换请求消息，其中，第一基站与第四基站均在第一MME下；或者，发送模块23，还配置为向第二MME发送切换请求，切换请求用于指示第二MME向第四基站转发切换请求消息，其中，第四基站在第二MME下。
在本实施例中，UE切换的目标基站，即第四基站可以与第一基站均在第一MME下，还可以为其它MME下的基站，在该第四基站所属的网络位置不同时，其获取UE的NB-IoT支持能力的方式也有所不同。需要说明的是，本实施例中的切换请求消息的传输时通过S1接口实现的，该S1接口 为基站与MME间的接口。
进一步地，本实施例的应用场景为，当前与UE建立RRC连接的基站为第一基站，并且第一基站在与UE建立RRC的过程中，已获取到UE的上下文信息，该UE的上下文信息包括承载信息上下文、AS安全上下文中的一项或多项，则本实施例提供的装置中，接收模块21，还配置为接收第一基站发送的UE的上下文信息，UE的上下文信息为第一基站挂起已建立的RRC连接之前，向第一MME发送的；发送模块23，还配置为在UE发起基于用户面传输的优化方案时，向UE接入的基站发送UE的上下文信息。
需要说明的是，本实施例的接收模块21，还配置为在接收第一基站发送的UE的上下文信息之后，接收第一基站发送的UE上下文请求消息，UE上下文请求消息为第一基站接收到UE发送的RRC连接恢复请求消息，且第一基站中未存储UE的上下文信息时，向第一MME发送的；发送模块23，还配置为向第一基站发送UE上下文响应消息，UE上下文响应消息用于指示第一基站向UE发送RRC连接恢复完成消息。
本发明实施例提供的信息传输装置配置为执行本发明图9到图14所示实施例提供的信息传输方法，具备相应的功能模块，其实现原理和技术效果类似，此处不再赘述。
实际应用时，接收模块21、发送模块23可由信息传输装置中的收发机实现；所述存储模块22可由信息传输装置中的存储器实现。
需要说明的是，本发明各实施例所述的信息传输装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机的可读取存储介质中。基于这样的理解，本发明各实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备，例如可以是个人计算机、服务器、或者网络设备等执行本发明所述信息传输方法的全部或部分。具体地，上述存储介质可以包括：USB闪存盘(USB flash disk，简称为：U盘)、移动硬盘、只读存储器(Read-Only Memory，简称为：ROM)、随机存取存储器(Random Access Memory，简称为：RAM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本 发明各实施例不限制于任何特定的硬件和软件结合。相应的，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序用作执行本发明提供的实施方法。换句话说，本发明实施例还提供了一种计算机存储介质，所述计算机存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行上述基站侧的信息传递方法，或者执行上述MME侧的信息传递方法。
图19为本发明实施例提供的一种信息传递系统的结构示意图。本实施例提供的信息传递系统适用于在NB-IoT进行信息传输的情况中，该系统通常包括：第一MME100以及该第一MME100下的第一基站110和第二基站120，第二MME200以及该第二MME200下的第三基站210和第四基站220。
其中，本实施例中的第一基站110、第二基站120、第三基站210和第四基站220中均设置有如上述图16和图17所示各实施例中的信息传输装置，第一MME100和第二MME200中均设置有如上述图18所示各实施例中的信息传输装置；在本实施例的系统中，第一基站和第二基站可以通过X2接口连接，第三基站和第四基站也可以通过X2接口连接，并且第一MME与第二MME相连接。本实施例的信息传输系统中的各网元执行信息传输的方式，与上述图16到图18所示实施例中对应网元执行信息传输的方式相同，同样用于执行本发明图1到图15所示任一实施例提供的信息传输方法，具备相应的实体装置，其实现原理和技术效果类似，此处不再赘述。
虽然本发明所揭露的实施方式如上，但所述的内容仅为便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
本发明实施例提供的方案，第一基站通过与UE建立RRC连接获取该UE的NB-IoT支持能力，该UE的NB-IoT支持能力可以包括UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项 或多项，并且该第一基站通过向第一MME发送已获取的UE的NB-IoT支持能力，指示第一MME存储该UE的NB-IoT支持能力，从而为后续的业务提供服务；本发明实施例通过合理的设计UE的NB-IoT支持能力的传递方式，提高了NB-IoT中无线连接业务的实用性。

Claims (42)

  1. 一种信息传输方法，包括：
    第一基站获取用户设备UE的窄带物联网NB-IoT支持能力，其中，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
    所述第一基站向第一移动性管理实体MME发送所述UE的NB-IoT支持能力，以指示所述第一MME存储所述UE的NB-IoT支持能力，并指示所述第一MME在所述UE请求重新建立RRC连接或所述UE接入的基站改变时，将所述UE的NB-IoT支持能力发送给所述UE当前接入的基站，所述UE当前接入的基站在所述第一MME下。
  2. 根据权利要求1所述的信息传输方法，其中，所述第一基站获取UE的NB-IoT支持能力，包括：
    第一基站通过与所述UE建立无线资源控制RRC连接获取所述UE的NB-IoT支持能力。
  3. 根据权利要求1所述的信息传输方法，其中，所述第一基站通过与所述UE建立RRC连接获取所述UE的NB-IoT支持能力，包括：
    当所述UE在进行初始附着时，或所述UE的NB-IoT支持能力改变时，或所述第一基站为所述UE分配无线资源，且所述第一基站未获取到所述UE的NB-IoT支持能力时，所述第一基站向所述UE发送UE能力查询消息；
    所述第一基站接收所述UE发送的UE能力信息指示消息，所述UE能力信息指示消息中包括所述UE的NB-IoT支持能力。
  4. 根据权利要求1所述的信息传输方法，其中，在所述UE请求重新建立RRC连接时，或者在所述UE从所第一MME下的第二基站切换到所述第一基站时，所述方法还包括：
    所述第一基站通过与UE重新建立RRC连接，从所述第一MME中获取UE的NB-IoT支持能力；
    其中，所述第一基站从所述第一MME中获取UE的NB-IoT支持能力， 包括：
    所述第一基站向所述第一MME发送初始UE消息，所述初始UE消息中包括服务请求信息；
    所述第一基站接收所述第一MME发送的初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
  5. 根据权利要求1所述的信息传输方法，其中，在所述UE从第二MME下的第三基站切换到所述第一基站时，所述方法还包括：
    所述第一基站接收所述第一MME发送的切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
    所述第一基站解调所述切换命令，并获取所述切换命令中的所述UE的NB-IoT支持能力；
    所述第一基站将所述UE的NB-IoT支持能力发送给所述第一MME，以指示所述第一MME存储所述UE的NB-IoT支持能力。
  6. 根据权利要求1所述的信息传输方法，其中，还包括：
    所述第一基站接收所述UE发送的测量信息，所述测量信息向所述第一基站指示所述UE切换的目标基站为第四基站；
    所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，所述切换请求消息用于指示所述第二基站根据所述UE的NB-IoT支持能力为所述UE分配无线资源。
  7. 根据权利要求6所述的信息传输方法，其中，所述第一基站与所述第四基站均在所述第一MME下，且所述第一基站和所述第四基站之间通过X2接口连接；所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，包括：
    所述第一基站通过所述X2接口向所述第四基站发送包括所述UE的NB-IoT支持能力的所述切换请求消息。
  8. 根据权利要求6所述的信息传输方法，其中，所述第一基站和所述 第四基站之间未设置有X2接口；所述第一基站通过所述测量信息指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，包括：
    所述第一基站向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
    所述第一基站向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向第二MME转发所述切换请求消息，以使得所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
  9. 根据权利要求1所述的信息传输方法，其中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述方法还包括：
    所述第一基站确定挂起已建立的RRC连接；
    所述第一基站向所述第一MME发送所述UE的上下文信息，所述UE的上下文信息用于指示所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息；
    所述第一基站挂起与所述UE建立的RRC连接。
  10. 根据权利要求9所述的信息传输方法，其中，所述第一基站挂起与所述UE建立的RRC连接之后，还包括：
    所述第一基站接收所述UE发送的RRC连接恢复请求消息；
    若所述第一基站中存储了所述UE的上下文信息，向所述UE发送RRC连接恢复完成消息；
    若所述第一基站中未存储所述UE的上下文信息，向所述第一MME发送UE上下文请求消息，并接收到所述第一MME返回的UE上下文响应消息，从而向所述UE发送RRC连接恢复完成消息。
  11. 根据权利要求5所述的信息传输方法，其中，所述第一基站向所述第一MME发送的所述UE的NB-IoT支持能力中，还携带有所述第一基 站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
    所述切换命令中还包括所述第三基站下每个小区的NB-IoT支持能力，所述第三基站下每个小区的NB-IoT支持能力包括所述第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
  12. 根据权利要求1所述的信息传输方法，其中，所述第一基站与所述第五基站通过X2接口连接，所述还包括：
    所述第一基站通过所述X2接口向所述第五基站发送所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
    所述第一基站接收所述第五基站通过所述X2接口发送的所述第五基站下每个小区的NB-IoT支持能力，所述第五基站下每个小区的NB-IoT支持能力包括所述第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
  13. 根据权利要求1所述的信息传输方法，其中，还包括：
    所述第一基站接收所述UE通过物理随机接入信道PRACH发送的所述UE的上行窄带接入能力；
    所述第一基站根据所述PRACH的类型确定所述UE的上行窄带接入能力为单频接入或多频接入。
  14. 一种信息传输方法，包括：
    第一移动性管理实体MME接收第一基站发送的用户设备UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站获取的，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
    所述第一MME存储所述UE的NB-IoT支持能力；
    所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站。
  15. 根据权利要求14所述的信息传输方法，其中，所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站，包括：
    所述第一MME接收所述第二基站发送的初始UE消息，所述初始UE消息中包括服务请求信息；
    所述第一MME向所述第二基站发送初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
  16. 根据权利要求14所述的信息传输方法，其中，在所述UE从所述第二MME下的第三基站切换到所述第一基站时，所述方法还包括：
    所述第一MME向所述第一基站发送切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
    所述第一MME接收并存储所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过解调所述切换命令获取的。
  17. 根据权利要求14所述的信息传输方法，其中，当所述第一基站为所述UE分配无线资源时，所述方法还包括：
    所述第一MME向所述第一基站发送初始上下文建立请求消息，且所述初始上下文建立请求消息中未包括所述UE的NB-IoT支持能力；
    所述第一MME接收并存储所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过向所述UE发送UE能力查询消息获取的，并且所述UE的NB-IoT支持能力用于所述第一基站为所述UE分配无线资源。
  18. 根据权利要求14所述的信息传输方法，其中，还包括：
    所述第一MME接收所述第一基站发送的切换请求，所述切换请求为所述第一基站接收到所述UE发送的测量信息后发送给所述第一MME的，所述测量信息用于指示所述UE切换的目标基站为第四基站；
    所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
    所述第一MME向第二MME发送所述切换请求，所述切换请求用于指示所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
  19. 根据权利要求14所述的信息传输方法，其中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述方法还包括：
    所述第一MME接收所述第一基站发送的UE的上下文信息，所述UE的上下文信息为所述第一基站挂起已建立的RRC连接之前，向所述第一MME发送的；
    所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息。
  20. 根据权利要求19所述的信息传输方法，其中，所述第一MME接收所述第一基站发送的UE的上下文信息之后，还包括：
    所述第一MME接收所述第一基站发送的UE上下文请求消息，所述UE上下文请求消息为第一基站接收到所述UE发送的RRC连接恢复请求消息，且所述第一基站中未存储所述UE的上下文信息时，向所述第一MME发送的；
    所述第一MME向所述第一基站发送UE上下文响应消息，所述UE上下文响应消息用于指示所述第一基站向所述UE发送RRC连接恢复完成消息。
  21. 一种信息传输装置，设置于第一基站中，所述信息传递装置包括： 接收模块和发送模块；
    其中，所述接收模块和所述发送模块，配置为获取用户设备UE的窄带物联网NB-IoT支持能力，其中，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
    所述发送模块，还配置为向第一移动性管理实体MME发送所述UE的NB-IoT支持能力，以指示所述第一MME存储所述UE的NB-IoT支持能力，并指示所述第一MME在所述UE请求重新建立RRC连接或所述UE接入的基站改变时，将所述UE的NB-IoT支持能力发送给所述UE当前接入的基站，所述UE当前接入的基站在所述第一MME下。
  22. 根据权利要求20所述的信息传输装置，其中，所述接收模块和所述发送模块，配置为通过与所述UE建立RRC连接获取所述UE的网NB-IoT支持能力。
  23. 根据权利要求22所述的信息传输装置，其中，所述接收模块和所述发送模块，配置为通过与所述UE建立RRC连接获取所述UE的NB-IoT支持能力，包括：
    当所述UE在进行初始附着时，或所述UE的NB-IoT支持能力改变时，或所述第一基站为所述UE分配无线资源，且所述第一基站未获取到所述UE的NB-IoT支持能力时，所述发送模块，配置为向所述UE发送UE能力查询消息；
    所述接收模块，配置为接收所述UE发送的UE能力信息指示消息，所述UE能力信息指示消息中包括所述UE的NB-IoT支持能力。
  24. 根据权利要求21所述的信息传输装置，其中，在所述UE请求重新建立RRC连接时，或者在所述UE从所第一MME下的第二基站切换到所述第一基站时；
    所述接收模块和所述发送模块，还配置为通过与UE重新建立RRC连接，从所述第一MME中获取UE的NB-IoT支持能力；
    其中，所述接收模块和所述发送模块配置为从所述第一MME中获取 UE的NB-IoT支持能力，包括：
    所述发送模块，还配置为向所述第一MME发送初始UE消息，所述初始UE消息中包括服务请求信息；
    所述接收模块，还配置为接收所述第一MME发送的初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
  25. 根据权利要求21所述的信息传输装置，其中，在所述UE从第二MME下的第三基站切换到所述第一基站时；
    所述接收模块，还配置为接收所述第一MME发送的切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
    所述信息传输装置还包括：解调模块，配置为解调所述切换命令，并获取所述切换命令中的所述UE的NB-IoT支持能力；
    所述发送模块，还配置为将所述UE的NB-IoT支持能力发送给所述第一MME，以指示所述第一MME存储所述UE的NB-IoT支持能力。
  26. 根据权利要求21所述的信息传输装置，其中，所述接收模块，还配置为接收所述UE发送的测量信息，所述测量信息向所述第一基站指示所述UE切换的目标基站为第四基站；
    所述发送模块，还配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，所述切换请求消息用于指示所述第二基站根据所述UE的NB-IoT支持能力为所述UE分配无线资源。
  27. 根据权利要求26所述的信息传输装置，其中，所述第一基站与所述第四基站均在所述第一MME下，且所述第一基站和所述第四基站之间通过X2接口连接；
    所述发送模块配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，是指：通过所述X2接口向所述第四基站发送包括所述UE的NB-IoT支持能力的所述切换请求消 息。
  28. 根据权利要求26所述的信息传输装置，其中，所述第一基站和所述第四基站之间未设置有X2接口；
    所述发送模块配置为通过所述测量信息用于指示所述第四基站获取包括所述UE的NB-IoT支持能力的切换请求消息，是指：向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，向所述第一MME发送所述切换请求消息，所述切换请求消息用于指示所述第一MME向第二MME转发所述切换请求消息，以使得所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
  29. 根据权利要求21所述的信息传输装置，其中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；所述信息传输装置还包括：确定模块和挂起模块；
    所述确定模块，配置为确定挂起已建立的RRC连接；
    所述发送模块，还配置为向所述第一MME发送所述UE的上下文信息，所述UE的上下文信息用于指示所述第一MME在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息；
    所述挂起模块，配置为挂起与所述UE建立的RRC连接。
  30. 根据权利要求29所述的信息传输装置，其中，所述接收模块，还配置为在所述挂起模块挂起与所述UE建立的RRC连接之后，接收所述UE发送的RRC连接恢复请求消息；所述信息传输装置还包括：
    判断模块，配置为判断所述第一基站中是否存储了所述UE的上下文信息；
    所述发送模块，还配置为在所述判断模块判断出所述第一基站中存储了所述UE的上下文信息时，向所述UE发送RRC连接恢复完成消息；
    所述发送模块，还配置为在所述判断模块判断出所述第一基站中未存 储所述UE的上下文信息时，向所述第一MME发送UE上下文请求消息；
    所述接收模块，还配置为接收所述第一MME返回的UE上下文响应消息；
    所述发送模块，还配置为向所述UE发送RRC连接恢复完成消息。
  31. 根据权利要求25所述的信息传输装置，其中，所述发送模块向所述第一MME发送的所述UE的NB-IoT支持能力中，还携带有所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
    所述切换命令中还包括所述第三基站下每个小区的NB-IoT支持能力，所述第三基站下每个小区的NB-IoT支持能力包括所述第三基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
  32. 根据权利要求21所述的信息传输装置，其中，所述第一基站与所述第五基站通过X2接口连接；所述接收模块，还配置为通过所述X2接口向所述第五基站发送所述第一基站下每个小区的NB-IoT支持能力，所述第一基站下每个小区的NB-IoT支持能力包括所述第一基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力；
    所述接收模块，还配置为接收所述第五基站通过所述X2接口发送的所述第五基站下每个小区的NB-IoT支持能力，所述第五基站下每个小区的NB-IoT支持能力包括所述第五基站下每个小区的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力。
  33. 根据权利要求21所述的信息传输装置，其中，所述接收模块，还配置为接收所述UE通过物理随机接入信道PRACH发送的所述UE的上行窄带接入能力；所述信息传输装置还包括：
    确定模块，配置为根据所述PRACH的类型确定所述UE的上行窄带接入能力为单频接入或多频接入。
  34. 一种信息传输装置，设置于第一移动性管理实体MME中，所述信 息传输装置包括：
    接收模块，配置为接收第一基站发送的用户设备UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站获取的，所述UE的NB-IoT支持能力包括所述UE的上行窄带接入能力，以及基于用户面和控制面传输优化方案的支持能力中的一项或多项；
    所述存储模块，配置为存储所述UE的NB-IoT支持能力；
    所述发送模块，配置为在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时，将所述UE的NB-IoT支持能力发送给所述第二基站。
  35. 根据权利要求34所述的信息传输装置，其中，所述第一MME在所述UE请求通过第二基站建立RRC连接或所述UE从所述第一基站切换到所述第一MME下的第二基站时；
    所述接收模块，还配置为接收所述第二基站发送的初始UE消息，所述初始UE消息中包括服务请求信息；
    所述发送模块，还配置为向所述第二基站发送初始上下文建立请求消息，所述初始上下文建立请求消息中包括所述UE的NB-IoT支持能力。
  36. 根据权利要求34所述的信息传输装置，其中，在所述UE从所述第二MME下的第三基站切换到所述第一基站时；
    所述发送模块，还配置为向所述第一基站发送切换命令，所述切换命令为所述第三基站发送给所述第二MME，并由所述第二MME转发给所述第一MME的，其中，所述切换命令中包括所述UE的NB-IoT支持能力和切换的目标地址，所述目标地址为所述第一MME下的第一基站；
    所述接收模块，还配置为接收所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过解调所述切换命令获取的；
    所述存储模块，还配置为存储所述接收模块接收的UE的NB-IoT支持能力。
  37. 根据权利要求34所述的信息传输装置，其中，当所述第一基站为 所述UE分配无线资源时；
    所述发送模块，还配置为向所述第一基站发送初始上下文建立请求消息，且所述初始上下文建立请求消息中未包括所述UE的NB-IoT支持能力；
    所述接收模块，还配置为接收所述第一基站发送的所述UE的NB-IoT支持能力，所述UE的NB-IoT支持能力为所述第一基站通过向所述UE发送UE能力查询消息获取的，并且所述UE的NB-IoT支持能力用于所述第一基站为所述UE分配无线资源；
    所述存储模块，还配置为存储所述接收模块接收的UE的NB-IoT支持能力。
  38. 根据权利要求34所述的信息传输装置，其中，所述接收模块，还配置为接收所述第一基站发送的切换请求，所述切换请求为所述第一基站接收到所述UE发送的测量信息后发送给所述第一MME的，所述测量信息用于指示所述UE切换的目标基站为第四基站；
    所述发送模块，还配置为向所述第四基站转发所述切换请求消息，其中，所述第一基站与所述第四基站均在所述第一MME下；或者，
    所述发送模块，还配置为向第二MME发送所述切换请求，所述切换请求用于指示所述第二MME向所述第四基站转发所述切换请求消息，其中，所述第四基站在所述第二MME下。
  39. 根据权利要求34所述的信息传输装置，其中，所述第一基站通过与所述UE建立RRC连接获取到所述UE的上下文信息，所述UE的上下文信息包括承载信息上下文、接入层AS安全上下文中的一项或多项；
    所述接收模块，还配置为接收所述第一基站发送的UE的上下文信息，所述UE的上下文信息为所述第一基站挂起已建立的RRC连接之前，向所述第一MME发送的；
    所述发送模块，还配置为在所述UE发起基于用户面传输的优化方案时，向所述UE接入的基站发送所述UE的上下文信息。
  40. 根据权利要求39所述的信息传输装置，其中，所述接收模块，还配置为在接收所述第一基站发送的UE的上下文信息之后，接收所述第一基 站发送的UE上下文请求消息，所述UE上下文请求消息为第一基站接收到所述UE发送的RRC连接恢复请求消息，且所述第一基站中未存储所述UE的上下文信息时，向所述第一MME发送的；
    所述发送模块，还配置为向所述第一基站发送UE上下文响应消息，所述UE上下文响应消息用于指示所述第一基站向所述UE发送RRC连接恢复完成消息。
  41. 一种信息传递系统，包括：第一移动性管理实体MME以及所述第一MME下的第一基站和第二基站，第二MME以及所述第二MME下的第三基站和第四基站，所述第一MME与所述第二MME相连接；
    其中，所述第一基站、所述第二基站、所述第三基站和所述第四基站中均设置有如权利要求21～33中任一项所述的信息传输装置，所述第一MME和所述第二MME中均设置有如权利要求34～40中任一项所述的信息传输装置。
  42. 一种计算机存储介质，所述计算机存储介质包括一组指令，当执行所述指令时，引起至少一个处理器执行如权利要求1～13任一项所述的信息传输方法，或者执行如权利要求14～20任一项所述的信息传输方法。
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