WO2016179826A1 - 基于基站组网环境下的消息处理方法、装置和设备 - Google Patents

基于基站组网环境下的消息处理方法、装置和设备 Download PDF

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Publication number
WO2016179826A1
WO2016179826A1 PCT/CN2015/078951 CN2015078951W WO2016179826A1 WO 2016179826 A1 WO2016179826 A1 WO 2016179826A1 CN 2015078951 W CN2015078951 W CN 2015078951W WO 2016179826 A1 WO2016179826 A1 WO 2016179826A1
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Prior art keywords
address
base station
destination
source
information identifier
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PCT/CN2015/078951
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English (en)
French (fr)
Inventor
刘涛
王自强
赖志昌
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580078968.9A priority Critical patent/CN107534852B/zh
Priority to PCT/CN2015/078951 priority patent/WO2016179826A1/zh
Publication of WO2016179826A1 publication Critical patent/WO2016179826A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a message processing method, apparatus, and device based on a base station networking environment.
  • the load in the original system is also increasing, and it is gradually difficult to carry more and more business requirements.
  • the radio wave since the radio wave is blocked by the building or the human body, the external interference, and the like, the blind area may appear in the coverage area of the base station with a certain probability.
  • the above technical problem is mainly solved by increasing the number of remote base stations, thereby achieving the purpose of expanding wireless capacity and supplementing blindness.
  • a small base station or a micro station adopting a networking scheme of a macro micro-flowering network, that is, expanding a small base station or a micro station around an area near the macro station, usually the number of small base stations or micro stations is Several times the macro station.
  • the bearer network also needs to be modified accordingly, for example, increasing the IP address planning, increasing the routing configuration of the transport bearer network, and the like, thereby opening the remote base station. Large investment, resulting in higher operating costs of the system.
  • the embodiment of the invention provides a message processing method, device and device based on a base station networking environment, which are used to reduce the operating cost of the system.
  • an embodiment of the present invention provides a message processing method based on a base station networking environment, which is applied to a base station system, where the system includes a host base station and at least one remote base station, and the host base station and each of the remote ends The base station shares a base station identifier and shares a public network protocol IP address.
  • the method includes:
  • the host base station Receiving, by the host base station, the first data packet sent by the remote base station, where the first data packet includes the first source IP address, a first destination IP address, and a first information identifier; wherein the first source The IP address is an IP address of the remote base station, and the first destination IP address is the host base station The IP address, the first information identifier is used by the remote base station to identify the user equipment UE on the S1 interface, or the first information identifier is used to identify the transmission between the remote base station and the host base station. tunnel;
  • the host base station queries the first forwarding table, and obtains a second source IP address, a second destination IP address, and a first source IP address, the first destination IP address, and the first information identifier respectively.
  • a second information identifier is used by the host base station to identify the UE on the S1 interface, or The second information identifier is used to identify a transmission tunnel between the host base station and the network side;
  • the host base station replaces the first source IP address, the first destination IP address, and the first information identifier in the first data packet with the second source IP address and the second And deleting the destination IP address and the second information, and then sending the first data packet to the network side.
  • the method further includes:
  • the second data packet sent by the network side, where the second data packet includes a third source IP address, a third destination IP address, and a third information identifier, where the third source IP address is The IP address of the network side, the third destination IP address is the public network IP address, and the third information identifier is used by the mobility management entity MME to identify the UE on the S1 interface, or the third The information identifier is used to identify a transmission tunnel between the network side and the host base station;
  • the host base station queries the second forwarding table, and obtains a fourth source IP address, a fourth destination IP address, and a third source IP address, the third destination IP address, and the third information identifier respectively.
  • a fourth information identifier is used by the MME in the S1
  • the interface identifies the UE, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station;
  • the host base station replaces the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address and the fourth Determining the destination IP address and the fourth information, and then transmitting the second data packet to the remote base station.
  • the method Still include:
  • the host base station Receiving, by the host base station, a first initializing user message that is sent by the remote base station and carrying the first feature information, where the first feature information includes the first source IP address, the first destination IP address, and the a first information identifier, where the first information identifier is a first eNB UE S1AP ID allocated by the remote base station to the donor base station;
  • the host base station allocates a second eNB UE S1AP ID to the network side according to the first initializing user message, and saves the mapping relationship between the first feature information and the second feature information in the first forwarding table.
  • the second feature information includes the second source IP address, the second destination IP address, and the second eNB UE S1AP ID;
  • the host base station sends a second initialization user message to the network side, where the network side returns, to the host base station, a network storage NAS message carrying third feature information according to the second initialization user message,
  • the third feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is the first MME allocated by the MME to the donor base station UE S1AP ID;
  • the base station allocates a second MME UE S1AP ID to the remote base station according to the NAS message, and saves the mapping relationship between the third feature information and the fourth feature information in the second forwarding table;
  • the fourth feature information includes the fourth source IP address, the fourth destination IP address, and the second MME UE S1AP ID.
  • the method further include:
  • the host base station receives a first bearer setup request message that is sent by the network side and carries the fifth feature information, where the fifth feature information includes the third source IP address, the third destination IP address, and the a third information identifier, where the third information identifier is a first tunnel endpoint identifier TEID allocated by the network side to the host base station;
  • the host base station allocates a second TEID to the remote base station according to the first bearer setup request message, and saves the mapping relationship between the fifth feature information and the sixth feature information in the second forwarding table.
  • the sixth feature information includes the fourth source IP address, the fourth destination IP address, and the second TEID;
  • the terminal base station returns, according to the second bearer setup request message, a bearer setup response message carrying the seventh feature information, where the seventh feature information includes the first source IP address, the first destination IP address, and The first information identifier, where the first information identifier is a third TEID allocated by the remote base station to the host base station;
  • the host base station allocates a fourth TEID to the network side according to the bearer setup response message, and saves the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table;
  • the eighth feature information includes the second source IP address, the second destination IP address, and the fourth TEID.
  • the embodiment of the present invention provides a message processing apparatus based on a base station networking environment, including:
  • a receiving module configured to receive a first data packet sent by the remote base station, where the first data packet includes the first source IP address, a first destination IP address, and a first information identifier; wherein, the first The source IP address is the IP address of the remote base station, the first destination IP address is the IP address of the host base station, and the first information identifier is used by the remote base station to identify the user equipment UE on the S1 interface. Or the first information identifier is used to identify a transmission tunnel between the remote base station and the donor base station;
  • An acquiring module configured to query the first forwarding table, and obtain a second source IP address, a second destination IP address, and a second destination IP address respectively corresponding to the first source IP address, the first destination IP address, and the first information identifier a second information identifier;
  • the second source IP address is a public network IP address, and the second destination IP address is an IP address of the network side;
  • the second information identifier is used by the host base station to identify the UE on the S1 interface, Or the second information identifier is used to identify a transmission tunnel between the host base station and the network side;
  • a processing module configured to replace the first source IP address, the first destination IP address, and the first information identifier in the first data packet with the second source IP address, respectively And identifying the second destination IP address and the second information identifier, and then sending the first data packet to the network side.
  • the receiving module is further configured to receive a second data packet that is sent by the network side, where the second data packet includes a third source IP address.
  • An address, a third destination IP address, and a third information identifier wherein the third source IP address is an IP address of the network side, the third destination IP address is the public network IP address, and the third
  • the information identifier is used by the mobility management entity MME to identify the UE on the S1 interface, or the third information The identifier is used to identify a transmission tunnel between the network side and the host base station;
  • the obtaining module is further configured to query the second forwarding table, and obtain a fourth source IP address and a fourth destination respectively corresponding to the third source IP address, the third destination IP address, and the third information identifier.
  • An IP address and a fourth information identifier the fourth source IP address is an IP address of the host base station, the fourth destination IP address is an IP address of the remote base station; and the fourth information identifier is used by the The MME identifies the UE on the S1 interface, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station;
  • the processing module is further configured to replace the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address, The fourth destination IP address and the fourth information identifier are then sent to the remote base station.
  • the receiving module is further configured to receive, by the remote base station, a first initialized user message that carries the first feature information, where the first feature information includes the first source IP address, the first destination IP address, and The first information identifier, where the first information identifier is a first eNB UE S1AP ID allocated by the remote base station to the donor base station;
  • the device further includes: an allocation module, a saving module, and a sending module; wherein
  • the allocating module is configured to allocate a second eNB UE S1AP ID to the network side according to the first initializing user message;
  • the saving module is configured to save the mapping relationship between the first feature information and the second feature information in the first forwarding table;
  • the second feature information includes the second source IP address, the first a second destination IP address and the second eNB UE S1AP ID;
  • the sending module is configured to send a second initialization user message to the network side, where the network side returns, to the host base station, a network storage NAS message carrying third feature information according to the second initialization user message.
  • the third feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is allocated by the MME to the host base station.
  • the allocating module is further configured to allocate, according to the NAS message, a second MME UE S1AP ID to the remote base station;
  • the saving module is further configured to save the mapping relationship between the third feature information and the fourth feature information in the second forwarding table; the fourth feature information includes the fourth source IP address, the The fourth destination IP address and the second MME UE S1AP ID.
  • the receiving The module is further configured to receive, by the network side, a first bearer setup request message that carries the fifth feature information, where the fifth feature information includes the third source IP address, the third destination IP address, and the The third information identifier, where the third information identifier is a first tunnel endpoint identifier TEID allocated by the network side to the host base station;
  • the device further includes: an allocation module, a saving module, and a sending module; wherein
  • the allocating module is further configured to allocate a second TEID to the remote base station according to the first bearer setup request message
  • the saving module is further configured to save the mapping relationship between the fifth feature information and the sixth feature information in the second forwarding table;
  • the sixth feature information includes the fourth source IP address, the a fourth destination IP address and the second TEID;
  • the sending module is configured to send a second bearer setup request message to the remote base station, where the remote base station returns, according to the second bearer setup request message, the seventh feature information to the host base station.
  • a bearer setup response message where the seventh feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is the remote base station is the a third TEID allocated by the host base station;
  • the allocating module is further configured to allocate a fourth TEID to the network side according to the bearer setup response message;
  • the saving module is further configured to save the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table; the eighth feature information includes the second source IP address, the a second destination IP address and the fourth TEID.
  • an embodiment of the present invention provides a base station, including:
  • a receiver configured to receive the first data packet sent by the remote base station, where the first data packet includes the first source IP address, a first destination IP address, and a first information identifier; wherein the first The source IP address is the IP address of the remote base station, the first destination IP address is the IP address of the host base station, and the first information identifier is used by the remote base station to identify the user equipment UE on the S1 interface. Or the first information identifier is used to identify a transmission tunnel between the remote base station and the donor base station;
  • a processor configured to query a first forwarding table, and obtain a second source IP address, a second destination IP address, and a second destination IP address respectively corresponding to the first source IP address, the first destination IP address, and the first information identifier a second information identifier;
  • the second source IP address is a public network IP address, and the second destination IP address is an IP address of the network side;
  • the second information identifier is used by the host base station to identify the UE on the S1 interface, Or the second information identifier is used to identify a transmission tunnel between the host base station and the network side;
  • the processor is further configured to replace the first source IP address, the first destination IP address, and the first information identifier in the first data packet with the second source IP address, The second destination IP address and the second information identifier are then sent to the network side.
  • the receiver is further configured to receive a second data packet that is sent by the network side, where the second data packet includes a third source IP address.
  • An address, a third destination IP address, and a third information identifier wherein the third source IP address is an IP address of the network side, the third destination IP address is the public network IP address, and the third The information identifier is used by the mobility management entity MME to identify the UE on the S1 interface, or the third information identifier is used to identify a transmission tunnel between the network side and the host base station;
  • the processor is further configured to query a second forwarding table, and obtain a fourth source IP address and a fourth destination respectively corresponding to the third source IP address, the third destination IP address, and the third information identifier.
  • An IP address and a fourth information identifier the fourth source IP address is an IP address of the host base station, the fourth destination IP address is an IP address of the remote base station; and the fourth information identifier is used by the The MME identifies the UE on the S1 interface, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station;
  • the processor is further configured to replace the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address, The fourth destination IP address and the fourth information identifier are then sent to the remote base station.
  • the receiver is further configured to receive the first initial user that is sent by the remote base station and carries the first feature information.
  • the first feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is that the remote base station is the host a first eNB UE S1AP ID allocated by the base station;
  • the processor is further configured to allocate a second eNB UE S1AP ID to the network side according to the first initializing user message, and save the mapping relationship between the first feature information and the second feature information in the In the first forwarding table, the second feature information includes the second source IP address, the second destination IP address, and the second eNB UE S1AP ID;
  • the base station further includes: a transmitter; wherein
  • the transmitter is further configured to send, by the network side, a second initialization user message, where the network side returns, to the host base station, a network storage NAS carrying third feature information according to the second initialization user message.
  • the third feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is that the MME allocates the host base station First MME UE S1AP ID;
  • the processor is further configured to allocate a second MME UE S1AP ID to the remote base station according to the NAS message, and save a mapping relationship between the third feature information and the fourth feature information in the second In the forwarding table, the fourth feature information includes the fourth source IP address, the fourth destination IP address, and the second MME UE S1AP ID.
  • the receiving if the first data packet and the second data packet are user plane data, the receiving And the first bearer setup request message that is sent by the network side and carries the fifth feature information, where the fifth feature information includes the third source IP address, the third destination IP address, and the The third information identifier, where the third information identifier is a first tunnel endpoint identifier TEID allocated by the network side to the host base station;
  • the processor is further configured to allocate a second TEID to the remote base station according to the first bearer setup request message, and save the mapping relationship between the fifth feature information and the sixth feature information in the first In the second forwarding table, the sixth feature information includes the fourth source IP address, the fourth destination IP address, and the second TEID;
  • the base station further includes: a transmitter; wherein
  • the transmitter is further configured to send a second bearer setup request message to the remote base station, where the remote base station returns to the host base station according to the second bearer setup request message a bearer setup response message of the seventh feature information, where the seventh feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is the remote end a third TEID allocated by the base station to the host base station;
  • the processor is further configured to allocate a fourth TEID to the network side according to the bearer setup response message, and save the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table.
  • the eighth feature information includes the second source IP address, the second destination IP address, and the fourth TEID.
  • the method, device and device for processing a message in a base station networking environment receives the first data packet sent by the remote base station, and obtains the first information included in the first data packet by querying the first forwarding table
  • the source IP address, the first destination IP address, and the first information identifier respectively correspond to the second source IP address, the second destination IP address, and the second information identifier, and the first source IP address, the first destination IP address, and the first
  • the information identifier is replaced with a second source IP address, a second destination IP address, and a second information identifier, respectively, and then the first data packet is sent to the network side.
  • the host base station may obtain the second source IP address, the second destination IP address, and the second information identifier by querying the first forwarding table, so as to forward the first data packet sent by the remote base station to On the network side, when the remote base station is added in the prior art, the bearer network is also modified accordingly, thereby reducing the operating cost of the system.
  • FIG. 1 is a schematic structural diagram of a base station system according to the present invention.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a message processing method in a base station networking environment according to the present invention
  • Embodiment 3 is a schematic flowchart of Embodiment 2 of a message processing method in a base station networking environment according to the present invention
  • Embodiment 4 is a schematic flowchart of Embodiment 3 of a message processing method in a base station networking environment according to the present invention
  • FIG. 5 is a schematic flowchart of Embodiment 4 of a message processing method in a base station networking environment according to the present invention
  • FIG. 6 is a schematic diagram of an S1 handover process according to Embodiment 5 of a message processing method in a base station networking environment according to the present invention
  • FIG. 7 is a schematic diagram of an X2 handover procedure according to Embodiment 6 of a message processing method in a base station networking environment according to the present invention.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a message processing apparatus in a base station networking environment according to the present invention.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a message processing apparatus in a base station networking environment according to the present invention.
  • Embodiment 10 is a schematic structural diagram of Embodiment 3 of a message processing apparatus in a base station networking environment according to the present invention.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention.
  • the base station system shown in FIG. 1 includes a host base station 11 and at least one remote base station 12, and an S1 interface and an X2 interface exist between the host base station 11 and the remote base station 12.
  • the host base station 11 may be a physical entity, such as a macro station, or a device that performs Long Time Evolution (LTE) signaling and service aggregation and virtual integration.
  • the remote base station 12 may be small. Station or micro station.
  • the remote base station 12 is configured to be aggregated by the host base station 11.
  • the host base station 11 and each remote base station 12 can be connected by wired means such as Ethernet or optical fiber, or can be wirelessly transmitted.
  • the method is connected, for example, Wireless Fidelity (WiFi), microwave, etc., and the connection manner between the host base station and the remote base station is not limited in this embodiment. system.
  • the host base station 11 and each remote base station 12 share a base station identifier and share a public network protocol (Internet Protocol; IP address), and the host base station 11 and each remote base station 12 pass the public network IP address.
  • the network side device may be, for example, a Serving Gateway (SGW) 14, a Mobility Management Entity (MME) 13 or other base station 15, wherein the host base station 11 and The SGW 14 and the MME 13 communicate with each other through the S1 interface, and the host base station 11 communicates with other base stations 15 through the X2 interface.
  • SGW Serving Gateway
  • MME Mobility Management Entity
  • the remote base station 12 uses the internal private network IP address for data forwarding, wherein the internal private network address IP can be automatically allocated by the host base station 11 or manually.
  • the host base station 11 After the remote base station 12 obtains the internal private network IP address, the host base station 11 performs network address translation (NAT) on the remote base station 12 to convert the internal private network IP address of the remote base station 12. Public IP address visible to the network. It should be noted that if there is a wireless transmission device between the host base station 11 and the remote base station 12, the IP address of the wireless transmission device is the same as that of the remote base station 12, and the internal private network address is also adopted, and the host base station 11 It performs NAT conversion.
  • NAT network address translation
  • the network side does not need to plan to add new IP addresses, and does not need to carry network routes. That is, the purpose of quickly opening the remote base station can be achieved.
  • the method for allocating the internal private network IP address of the remote base station and the wireless transmission device is not limited in this regard.
  • the host base station and each remote base station in the base station system share not only one base station identifier but also one IP address, and the entire base station system has only one S1 interface and one external
  • the X2 interface therefore, from the perspective of the remote base station, the donor base station can act as a network side device or a neighboring base station, and from the perspective of the network side or a neighboring base station, the remote base station is no longer a separate The base station is only one cell of the donor base station.
  • the base station communicates with the network side through the S1 interface as an example.
  • the manner in which the base station communicates with other base stations through the X2 interface is similar to the S1 interface, and details are not described herein again.
  • FIG. 2 is a schematic flowchart of Embodiment 1 of a message processing method in a base station networking environment according to the present invention.
  • the embodiment of the invention provides a message processing method based on a base station networking environment, and the method It can be performed by any device that performs a message processing method based on a base station networking environment, and the device can be implemented by software and/or hardware. In this embodiment, the device can be integrated in the host base station.
  • the method in this embodiment may include:
  • Step 201 The host base station receives the first data packet sent by the remote base station, where the first data packet includes a first source IP address, a first destination IP address, and a first information identifier, where the first source IP address is a remote base station
  • the IP address, the first destination IP address is the IP address of the host base station
  • the first information identifier is used by the remote base station to identify the UE on the S1 interface, or the first information identifier is used to identify the transmission tunnel between the remote base station and the donor base station.
  • the first data packet sent by the remote base station to the donor base station is encapsulated with the first source IP address, the first destination IP address, and the first information identifier, because the host base station and each remote base station share one
  • the base station identifier, for the network side and the neighboring base station, the host base station and each remote base station are only presented as one base station, and the base station system still uses the private network IP address for communication, and therefore, the first packet is encapsulated in the first data packet.
  • the source IP address is the IP address of the remote base station
  • the first destination IP address is the IP address of the base station.
  • the first information identifier includes the first eNB UE S1AP ID or the first tunnel endpoint identifier (TEID).
  • the first eNB UE S1AP ID is allocated to the remote base station, and is used by the remote base station to identify the user equipment (User Equipment; UE) on the S1 interface, and the first TEID is allocated by the remote base station, and is used to identify the far A transmission tunnel between the end base station and the donor base station.
  • UE User Equipment
  • Step 202 The host base station queries the first forwarding table, and obtains a second source IP address, a second destination IP address, and a second information identifier respectively corresponding to the first source IP address, the first destination IP address, and the first information identifier.
  • the second source IP address is the public network IP address
  • the second destination IP address is the IP address of the network side;
  • the second information identifier is used by the donor base station to identify the UE on the S1 interface, or the first information identifier is used to identify the host base station and the network side.
  • the entire base station system has only one S1 interface and one X2 interface, and the remote base station can be regarded as It is a cell of the host base station, and for the remote base station, the host base station can act as a network side device or a neighboring base station. Therefore, the host base station can proxy the signaling of all remote base stations, that is, the host base station completes all the fars.
  • the public S1 interface is sent to the network side, and the host base station needs to query the first forwarding table to obtain the public network IP address corresponding to the first source IP address, the first destination IP address, and the first information identifier, and the IP address of the network side.
  • the second information identifier includes the second eNB UE S1AP ID or the second TEID, where the second eNB UE S1AP ID is allocated by the donor base station, and the host base station identifies the UE on the S1 interface, and the second TEID is The host base station allocates a tunnel for identifying the transmission between the host base station and the network side.
  • the host base station needs to proxy all UE-related signaling, and the non-UE related signaling for the inner terminating small station is copied and distributed to the non-UE related signaling delivered by the network side.
  • the host base station needs to collect signaling feedback messages of all remote base stations, and return the signaling feedback messages to the network side.
  • the host base station since the host base station can function as a network side device for the remote base station, the host base station needs to complete the authentication of the remote base station to determine whether the remote base station is legal, thereby improving the security of the system.
  • Step 203 The host base station replaces the first source IP address, the first destination IP address, and the first information identifier in the first data packet with the second source IP address, the second destination IP address, and the second information identifier, respectively, and then The first data packet is sent to the network side.
  • the host base station after obtaining the second source IP address, the second destination IP address, and the second information identifier, the host base station obtains the first source IP address, the first destination IP address, and the first information in the first data packet.
  • the identifier is replaced with the second source IP address, the second destination IP address, and the second information identifier, and then the replaced first data packet is sent to the network side.
  • the host base station receives the first data packet sent by the remote base station, and obtains the first source IP address included in the first data packet by querying the first forwarding table.
  • the second source IP address, the second destination IP address, and the second information identifier respectively corresponding to the address, the first destination IP address, and the first information identifier, and the first source IP address, the first destination IP address, and the first information identifier
  • the second source IP address, the second destination IP address, and the second information identifier are respectively replaced, and then the first data packet is sent to the network side.
  • the host base station may obtain the second source IP address, the second destination IP address, and the second information identifier by querying the first forwarding table, so as to forward the first data packet sent by the remote base station to On the network side, when the remote base station is added in the prior art, the bearer network is also modified accordingly, thereby reducing the system. Operating costs.
  • FIG. 3 is a schematic flowchart of Embodiment 2 of a message processing method in a base station networking environment according to the present invention.
  • an embodiment of the processing manner in which the host base station receives the second data packet sent by the network side is described in detail on the basis of the embodiment shown in FIG. 2 .
  • the method in this embodiment may include:
  • Step 301 The host base station receives the second data packet sent by the network side, where the second data packet includes a third source IP address, a third destination IP address, and a third information identifier, where the third source IP address is an IP address of the network side.
  • the third destination IP address is a public network IP address
  • the third information identifier is used by the mobility management entity MME to identify the UE on the S1 interface, or the third information identifier is used to identify a transmission tunnel between the network side and the host base station.
  • the second data packet sent by the network side to the host base station is encapsulated with a third source IP address, a third destination IP address, and a third information identifier, because the host base station and each remote base station share one public The IP address of the network. Therefore, when the network side communicates with the base station system, the data packet can be sent only through the public network IP address shared by the host base station and the remote base station. Therefore, the third destination IP address is a public network IP address.
  • the third information identifier includes a first MME UE S1AP ID or a third TEID, where the first MME UE S1AP ID is allocated by the network side, and may be allocated, for example, to a mobility management entity (Mobility Management Entity; MME for short).
  • MME Mobility Management Entity
  • the MME is configured to identify the UE on the S1 interface
  • the third TEID is allocated by the network side, and is used to identify a transmission tunnel between the network side and the host base station.
  • Step 302 The host base station queries the second forwarding table, and obtains a fourth source IP address and a fourth destination IP address respectively corresponding to the third source IP address, the third destination IP address, and the third information identifier.
  • a fourth information identifier is used by the MME
  • the S1 interface identifies the UE, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station.
  • the base station system still uses the private IP address of the base station when communicating within the base station system. Therefore, the host base station needs to map the public network IP address included in the second data packet to the private network IP address.
  • the host base station queries the second forwarding table to obtain the third source IP address and the third destination IP address included in the second data packet.
  • the third source identifier corresponds to the fourth source IP address and the fourth destination respectively IP address and fourth information identifier.
  • the fourth information identifier includes a second MME UE S1AP ID or a fourth TEID, where the second MME UE S1AP ID is allocated by the host base station, and is used by the MME to identify the UE on the S1 interface, and the fourth TEID is allocated by the host base station, and is used for A transmission tunnel between the donor base station and the remote base station is identified.
  • Step 303 The host base station replaces the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address, the fourth destination IP address, and the fourth information identifier, respectively, and then The second data packet is sent to the remote base station.
  • the host base station after obtaining the fourth source IP address, the fourth destination IP address, and the fourth information identifier, the host base station obtains the third source IP address, the third destination IP address, and the third information in the second data packet.
  • the identifier is replaced with a fourth source IP address, a fourth destination IP address, and a fourth information identifier, and then the replaced second data packet is sent to the network side.
  • the host base station receives the second data packet sent by the network side, and obtains the third source IP address included in the second data packet by querying the second forwarding table. And the third source IP address, the fourth destination IP address, and the fourth information identifier corresponding to the third destination IP address and the third information identifier respectively, and the third source IP address, the third destination IP address, and the third information identifier are respectively The fourth source IP address, the fourth destination IP address, and the fourth information identifier are replaced, and then the second data packet is forwarded to the remote base station.
  • the host base station can obtain the third source IP address, the third destination IP address, and the third information identifier by querying the second forwarding table, so as to send the second data packet sent by the network side to the far side.
  • the end base station avoids the phenomenon that the bearer network is also modified correspondingly when the remote base station is added in the prior art, thereby reducing the operating cost of the system.
  • the bearer network does not need to be modified when the remote base station is added, the station establishment speed of the remote base station can be accelerated, and the station construction cost of the remote base station can be reduced.
  • FIG. 4 is a schematic flowchart of Embodiment 3 of a message processing method in a base station networking environment according to the present invention.
  • the method in this embodiment may include:
  • Step 401 The host base station receives a first initial user message that is sent by the remote base station and carries the first feature information, where the first feature information includes a first source IP address, a first destination IP address, and a first information identifier, where the first The information identifier is the first eNB UE S1AP ID allocated by the remote base station to the donor base station.
  • the host base station when the first data packet and the second data packet received by the host base station are signaling plane data, the host base station needs to perform according to the first forwarding table and the second forwarding table that include the IP pair and the S1AP ID.
  • the forwarding of the signaling plane data therefore, the host base station needs to establish the first forwarding table and the second forwarding table in advance.
  • the remote base station sends a first initialization message carrying the first feature information to the host base station, where the first source IP address included in the first feature information is a remote base station.
  • the IP address and the first destination IP address are the IP addresses of the host base station, and the first information identifier is the first eNB UE S1AP ID allocated by the remote base station.
  • Step 402 The host base station allocates a second eNB UE S1AP ID to the network side according to the first initializing user message, and saves the mapping relationship between the first feature information and the second feature information in the first forwarding table; the second feature information includes The second source IP address, the second destination IP address, and the second eNB UE S1AP ID.
  • the host base station after receiving the first initialization message sent by the remote base station, allocates a second eNB UE S1AP ID to the network side according to the first initialization message, where the second eNB UE S1AP ID is used for the host base station.
  • the UE is identified on the S1 interface.
  • the second eNB UE S1AP ID is allocated, the first base IP address, the first destination IP address, the first eNB UE S1AP ID, the second source IP address, and the second destination IP address, which are carried in the first initialization message,
  • the mapping relationship between the second eNB and the S1AP ID is stored in the first forwarding table, where the second source IP address is the public network IP address and the second destination IP address is the IP address of the network side.
  • the private network IP address of the remote base station is 192.168.1.10
  • the IP address of the host base station is 192.168.1.1
  • the IP address of the network side is 202.155.25.100.
  • the public network IP address of the base station system is 202.155.22.100.
  • the first eNB UE S1AP ID assigned by the remote base station is 01
  • the second eNB UE S1AP ID assigned by the host base station is 02.
  • the host base station will “ The first source IP address is 192.168.1.10, the first destination IP address is 192.168.1.1, and the first eNB UE S1AP ID 01" is mapped to "second source IP address: 202.155.22.100, second destination IP address 202.155.25.100, The second eNB UE S1AP ID 02", and the mapping relationship is saved in the first forwarding table.
  • Step 403 The host base station sends a second initialization user message to the network side, so that the network side returns, to the host base station, the network storage NAS message carrying the third feature information according to the second initialization user message, where the third feature information includes the third source IP address.
  • the host base station sends a second initialization message carrying the eNB UE S1AP ID allocated by the host base station to the network side to the network side, and the network side according to the received second initialization message.
  • NAS Network Attached Storage
  • the host base station carries a third source IP address, a third destination IP address, a first MME UE S1AP ID, and an eNB allocated by the donor base station to the network side.
  • Step 404 The host base station allocates a second MME UE S1AP ID to the remote base station according to the NAS message, and saves the mapping relationship between the third feature information and the fourth feature information in the second forwarding table.
  • the fourth feature information includes the fourth Source IP address, fourth destination IP address, and second MME UE S1AP ID.
  • the host base station allocates a second MME UE S1AP ID to the remote base station according to the received NAS message, where the second MME UE S1AP ID is used by the MME to identify the UE on the S1 interface.
  • the third base IP address, the third destination IP address, the first MME UE S1AP ID, the fourth source IP address, the fourth destination IP address, and the second The mapping relationship of the MME UE S1AP ID is stored in the second forwarding table, where the fourth source IP address is the IP address of the donor base station, and the fourth destination IP address is the IP address of the remote base station.
  • the donor base station will “the third source IP address: 202.155.25.100, the third destination IP address. 202.155.22.100, the first MME UE S1AP ID 03" is mapped to "fourth source IP address: 192.168.1.1, fourth destination IP address 192.168.1.10, second MME UE S1AP ID 04", and the mapping relationship is saved in In the first forwarding table.
  • the host base station After the host base station establishes the second forwarding table, it sends a NAS response message to the remote base station to notify the remote base station user that the establishment process ends.
  • the host base station according to the received remote base station carries the first source IP address, the first destination IP address, and the first eNB UE S1AP ID.
  • An initialization message is established, and the first forwarding table is established according to the second source IP address, the second destination IP address, and the second eNB UE S1AP ID.
  • the host base station returns a third source IP address and a third through the network side.
  • the network side sends a UE context release command to the host base station, where the source IP address carried in the UE context release command is the IP address of the network side, the destination IP address is the public network IP address, and the S1AP ID is the MME UE allocated by the network side.
  • the S1AP ID, and the remote base station is invisible to the network side.
  • the host base station needs to query the second forwarding table to obtain the IP address of the base station, the IP address of the remote base station, and the MME UE S1AP ID allocated by the base station.
  • the source IP address, the destination IP address, and the MME UE S1AP ID allocated by the network side are replaced by the obtained IP address of the host base station, the IP address of the remote base station, and the MME UE S1AP ID allocated by the base station.
  • the source IP address carried in the UE context release completion command is the IP address of the remote base station, and the destination IP address is the IP address of the host base station, and the S1AP ID is far.
  • the eNB UE S1AP ID allocated by the base station therefore, the host base station needs to query the first forwarding table, obtain the public network IP address, the IP address of the network side, and the eNB UE S1AP ID allocated by the base station, and carry the UE context release completion command.
  • the source IP address, the destination IP address, and the eNB UE S1AP ID assigned by the remote base station are replaced by the obtained public network IP address, the IP address of the network side, and the eNB UE S1AP ID allocated by the base station to release the UE context.
  • the command is sent to the network side. After the transmission is successful, the first forwarding table and the second forwarding table stored in the local are deleted.
  • FIG. 5 is a schematic flowchart of Embodiment 4 of a message processing method in a base station networking environment according to the present invention.
  • the method in this embodiment may include:
  • Step 501 The host base station receives a first bearer setup request message that is sent by the network side and carries the fifth feature information, where the fifth feature information includes a third source IP address, a third destination IP address, and a third information identifier, where the third The information identifier is the first TEID allocated by the network side to the donor base station.
  • the base station when performing user plane data communication, the base station needs to establish a bearer with the network side. To send user face data.
  • the host base station needs to forward the user plane data according to the first forwarding table and the second forwarding table including the IP pair and the TEID.
  • the host base station needs to establish a first forwarding table and a second forwarding table in advance.
  • the network side sends a first bearer setup request message carrying the fifth feature information to the host base station, where the third source IP address included in the fifth feature information is the network side IP address and the third destination IP address is public.
  • the network IP address, the third information identifier is the first TEID allocated by the network side, for example, the first TEID that can be allocated to the SGW.
  • Step 502 The host base station allocates a second TEID to the remote base station according to the first bearer setup request message, and saves the mapping relationship between the fifth feature information and the sixth feature information in the second forwarding table.
  • the sixth feature information includes The four source IP address, the fourth destination IP address, and the second TEID.
  • the host base station allocates a second TEID to the remote base station according to the received first bearer setup request message, where the second TEID is used to identify a transport tunnel between the host base station and the remote base station, and the host base station allocates After the second TEID, the mapping relationship between the third source IP address, the third destination IP address, the first TEID, the fourth source IP address, the fourth destination IP address, and the second TEID is saved in the first bearer setup request message.
  • the fourth source IP address is the IP address of the donor base station
  • the fourth destination IP address is the IP address of the remote base station.
  • the IP address of the network side is 202.155.25.100
  • the IP address of the host base station is 192.168.1.1
  • the private network IP address of the remote base station is 192.168.1.10.
  • the public network IP address of the base station system is 202.155.22.100.
  • the first TEID assigned by the network side is 05
  • the second TEID allocated by the host base station is 06. Therefore, the host base station will "the third source IP address: 202.155.
  • the third destination IP address 202.155.22.100, the first TEID 05" is mapped to "fourth source IP address: 192.168.1.1, fourth destination IP address 192.168.1.10, second TEID 06", and the mapping relationship Saved in the second forwarding table.
  • Step 503 The host base station sends a second bearer setup request message to the remote base station, so that the remote base station returns a bearer setup response message carrying the seventh feature information to the host base station according to the second bearer setup request message, where the seventh feature information includes The first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is a third TEID allocated by the remote base station to the host base station.
  • the host base station sends a second bearer setup request message carrying the second TEID to the remote base station, and the remote base station sends a request message to the host according to the second bearer setup request message.
  • the base station returns a bearer setup response message, where the bearer establishes a response message Carrying the first source IP address, the first destination IP address, and the third TEID, wherein the first source IP address is the IP address of the remote base station, the first destination IP address is the IP address of the host base station, and the third TEID is far
  • the end base station is allocated for the host base station.
  • Step 504 The host base station allocates a fourth TEID to the network side according to the bearer setup response message, and saves the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table.
  • the eighth feature information includes the second source IP address. Address, second destination IP address, and fourth TEID.
  • the host base station allocates a fourth TEID to the network side according to the received bearer setup response message, where the fourth TEID is used to identify a transport tunnel between the host base station and the network side.
  • the mapping between the first source IP address, the first destination IP address, the third TEID, the second source IP address, the second destination IP address, and the fourth TEID carried in the bearer setup response message after the fourth base station is assigned the fourth TEID The second source IP address is a public network IP address, and the second destination IP address is an IP address of the network side.
  • the host base station when the third TEID assigned by the remote base station is 07 and the fourth TEID assigned by the base station is 08, the host base station will "first source IP address: 192.168.1.10, first destination IP address 192.168.1.1, The three TEIDs 07" are mapped to "second source IP address: 202.155.22.100, second destination IP address 202.155.25.100, fourth TEID 08", and the mapping relationship is saved in the first forwarding table. After the first base forwarding table is established, the host base station sends a bearer setup response message to the network side to notify the network side that the bearer setup process ends.
  • the host base station establishes a request according to the first bearer that is sent by the network side and carries the third source IP address, the third destination IP address, and the first TEID. a message, and establishing a second forwarding table according to the fourth source IP address, the fourth destination IP address, and the second TEID; in addition, the host base station returns the first source IP address, the first destination IP address, and a bearer setup response message of the third TEID, and establishing a first forwarding table according to the second source IP address, the second destination IP address, and the fourth TEID, so that the host base station can be based on the established first forwarding table and the second forwarding table.
  • the data packet is forwarded to the remote base station or the network side, which avoids the phenomenon that the bearer network also needs to be modified when the remote base station is added in the prior art, thereby reducing the operating cost of the system.
  • the network side sends a bearer release command to the donor base station, because the bearer release command is received.
  • the source IP address carried in the network is the IP address of the network side
  • the destination IP address is the public network IP address
  • the S1AP ID is the MME UE S1AP ID assigned by the network side.
  • the base station is invisible to the network side. Therefore, the host base station needs to query the second forwarding table to obtain the IP address of the base station, the IP address of the remote base station, and the MME UE S1AP ID allocated by the base station, and carry the bearer release command.
  • the source IP address, the destination IP address, and the MME UE S1AP ID assigned by the network side are replaced with the acquired IP address of the donor base station, the IP address of the remote base station, and the MME UE S1AP ID assigned by the donor base station to replace the bearer.
  • the release command is sent to the remote base station, and the remote base station releases the bearer according to the bearer release command. After the release is completed, the bearer release completion command is returned to the host base station. At this time, the source IP address carried in the bearer release completion command is far.
  • the IP address of the base station, the destination IP address is the IP address of the host base station, and the S1AP ID is the eNB UE S1AP ID assigned by the remote base station.
  • the host base station needs to query the first forwarding table to obtain the public network IP address and the IP of the network side.
  • the eNB UE S1AP ID allocated by the remote base station is replaced by the obtained public network IP address, the IP address of the network side, and the eNB UE S1AP ID allocated by the base station to send the UE context release completion command to the network side.
  • the first forwarding table and the second forwarding table stored in the local are deleted.
  • FIG. 6 is a schematic diagram of an S1 handover process according to Embodiment 5 of a message processing method in a base station networking environment according to the present invention.
  • a wireless connection is established between a host base station and each remote base station in the base station system, and the host base station is shared with each remote base station.
  • a base station identifier and sharing the same IP address the switching process of S1 is as follows:
  • Step 601 The remote base station sends a handover request message to the donor base station.
  • Step 602 The host base station sends the received handover request message to the MME.
  • Step 603 The MME sends a handover request message to other base stations.
  • Step 604 The other base station returns a handover request response message to the MME according to the handover request message.
  • Step 605 The MME sends a first handover instruction to the host base station according to the received handover request response message, where the handover instruction carries an IP address of the MME, a public network IP address, and a first TEID allocated by the MME to the host base station.
  • Step 606 The host base station allocates a second TEID to the remote base station according to the first handover instruction, and sets an IP address of the MME, a public network IP address, a first TEID, an IP address of the host base station, and a remote end.
  • the mapping relationship between the IP address of the base station and the second TEID is stored in the forwarding table.
  • Step 607 The host base station sends a second handover instruction to the remote base station, where the second handover instruction carries an IP address of the host base station, an IP address of the remote base station, and a second TEID allocated by the host base station to the remote base station.
  • Step 608 The remote base station sends a third handover instruction to the UE.
  • Step 609 The remote base station sends a base station SN status forwarding message to the host base station.
  • Step 610 The host base station sends the received base station SN status forwarding message to the MME.
  • Step 611 The MME forwards the message according to the received base station SN status, and sends an MME SN status forwarding message to other base stations.
  • Step 612 The remote base station sends the data to the host base station, and the host base station sends the data to the MME.
  • Step 613 The MME forwards the data to other base stations.
  • Step 614 The UE sends a handover confirmation message to other base stations.
  • Step 615 The other base station sends the received handover confirmation message to the MME.
  • Step 616 The MME sends a UE context release message to the donor base station.
  • Step 617 The host base station sends a UE context release message to the remote base station.
  • Step 618 The host base station deletes the established forwarding table.
  • the handover process of the S1 interface is completed. It should be noted that when the UE moves from the coverage of other base stations to the coverage of the base station system, the handover process of the S1 interface is similar to the above process, except that the sending direction of all messages and the sending direction in the above process are different. in contrast.
  • FIG. 7 is a schematic diagram of an X2 handover procedure according to Embodiment 6 of a message processing method in a base station networking environment according to the present invention.
  • a wireless connection is established between a host base station and each remote base station in the base station system, and the host base station is shared with each remote base station. If a base station is identified and shares the same IP address, the switching process of X2 is as follows:
  • Step 701 The remote base station sends a handover request message to the host base station.
  • Step 702 The host base station sends the received handover request message to other base stations.
  • Step 703 The other base station returns to the host base station according to the received handover request message. And a switching instruction, where the first switching instruction carries an IP address of another base station, a public network IP address, and a first TEID allocated by another base station.
  • Step 704 The host base station allocates a second TEID to the remote base station according to the first handover instruction, and sets an IP address of another base station, a public network IP address, a first TEID, an IP address of the host base station, and an IP address of the remote base station, The mapping relationship of the second TEID is saved in the forwarding table.
  • Step 705 The host base station sends a second handover instruction to the remote base station, where the second handover instruction carries an IP address of the host base station, an IP address of the remote base station, and a second TEID allocated by the host base station to the remote base station.
  • Step 706 The remote base station sends a third handover instruction to the UE.
  • Step 707 The remote base station sends a base station SN status forwarding message to the donor base station.
  • Step 708 The host base station sends the received base station SN status forwarding message to other base stations.
  • Step 709 The remote base station sends the data to the host base station, and the host base station sends the data to other base stations.
  • Step 710 The UE sends a handover confirmation message to other base stations.
  • Step 711 The other base station sends a UE context release message to the donor base station.
  • Step 712 The host base station sends a UE context release message to the remote base station.
  • Step 713 The host base station deletes the established forwarding table.
  • the handover process of the X2 interface is completed. It should be noted that when the UE moves from the coverage of other base stations to the coverage of the base station system, the handover process of the X2 interface is similar to the above process, except that the sending direction of all messages is the same as the sending direction in the above process. in contrast.
  • the macro station when the X2 interface is switched between two remote base stations, the macro station has broadcasted all E-UTRAN Cell Global Identifiers (ECGI). For each remote base station, the X2 link can be established directly between the remote base stations without the need to relay the message through the host base station.
  • E-UTRAN Cell Global Identifiers ECGI
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a message processing apparatus in a base station networking environment according to the present invention.
  • the message processing apparatus in a base station networking environment according to an embodiment of the present invention includes a receiving module 11 and obtains Module 12 and processing module 13.
  • the receiving module 11 is configured to receive the first data packet that is sent by the remote base station, where the first data packet includes the first source IP address, the first destination IP address, and the first information identifier.
  • the first source IP address is an IP address of the remote base station
  • the first destination IP address is an IP address of the host base station
  • the first information identifier is used by the remote base station to identify an S1 interface.
  • the user equipment UE, or the first information identifier is used to identify a transmission tunnel between the remote base station and the host base station;
  • the obtaining module 12 is configured to query the first forwarding table, and obtain the first source IP address.
  • the address, the first destination IP address, and the first information identifier respectively corresponding to the second source IP address, the second destination IP address, and the second information identifier;
  • the second source IP address is a public network IP address,
  • the second destination IP address is an IP address of the network side;
  • the second information identifier is used by the host base station to identify the UE on the S1 interface, or the second information identifier is used to identify the host base station and the network.
  • a transmission tunnel between the sides; the processing module 13 is configured to replace the first source IP address, the first destination IP address, and the first information identifier in the first data packet with the second Source IP address, the second destination IP address, and the first Identification information, and then the first data packet to the network side.
  • the host base station receives the first data packet sent by the remote base station, and obtains the first source IP address included in the first data packet by querying the first forwarding table.
  • the second source IP address, the second destination IP address, and the second information identifier respectively corresponding to the address, the first destination IP address, and the first information identifier, and the first source IP address, the first destination IP address, and the first information identifier
  • the second source IP address, the second destination IP address, and the second information identifier are respectively replaced, and then the first data packet is sent to the network side.
  • the host base station may obtain the second source IP address, the second destination IP address, and the second information identifier by querying the first forwarding table, so as to forward the first data packet sent by the remote base station to On the network side, when the remote base station is added in the prior art, the bearer network is also modified accordingly, thereby reducing the operating cost of the system.
  • the receiving module 11 is further configured to receive the second data packet sent by the network side, where the second data packet includes a third source IP address, a third destination IP address, and a third information identifier, where The third source IP address is an IP address of the network side, the third destination IP address is the public network IP address, and the third information identifier is used by the mobility management entity MME on the S1 interface identifier.
  • the UE, or the third information identifier is used to identify a transmission tunnel between the network side and the host base station;
  • the obtaining module 12 is further configured to query the second forwarding table, and obtain a fourth source IP address and a fourth corresponding to the third source IP address, the third destination IP address, and the third information identifier respectively.
  • a destination IP address and a fourth information identifier the fourth source IP address is an IP address of the host base station, the fourth destination IP address is an IP address of the remote base station; and the fourth information identifier is used for
  • the MME identifies the UE on the S1 interface, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station;
  • the processing module 13 is further configured to replace the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address, The fourth destination IP address and the fourth information identifier are then sent to the remote base station.
  • the message processing device in the base station networking environment of the present embodiment can be used to perform the technical solution of the message processing method in the base station networking environment provided by the embodiment shown in FIG. 3 of the present invention, and the implementation principle and technical effects thereof are implemented. Similar, it will not be repeated here.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a message processing apparatus in a base station networking environment according to the present invention. As shown in FIG. 9, this embodiment is based on the embodiment shown in FIG.
  • the second data packet is signaling plane data, and the device further includes: an allocation module 14, a saving module 15, and a sending module 16.
  • the receiving module 11 is further configured to receive, by the remote base station, a first initialized user message that carries the first feature information, where the first feature information includes the first source IP address, the first a destination IP address and the first information identifier, where the first information identifier is a first eNB UE S1AP ID allocated by the remote base station to the donor base station;
  • the allocating module 14 is configured to allocate, according to the first initializing user message, a second eNB UE S1AP ID to the network side;
  • the saving module 15 is configured to save the mapping relationship between the first feature information and the second feature information in the first forwarding table;
  • the second feature information includes the second source IP address, the first a second destination IP address and the second eNB UE S1AP ID;
  • the sending module 16 is configured to send a second initialization user message to the network side, where the network side returns, to the host base station, a network storage NAS message carrying the third feature information according to the second initialization user message.
  • the third feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is allocated by the MME to the host base station.
  • the allocating module 14 is further configured to allocate a second to the remote base station according to the NAS message.
  • the saving module 15 is further configured to save the mapping relationship between the third feature information and the fourth feature information in the second forwarding table; the fourth feature information includes the fourth source IP address, the The fourth destination IP address and the second MME UE S1AP ID.
  • the message processing device in the base station networking environment of the present embodiment can be used to perform the technical solution of the message processing method in the base station networking environment provided by the embodiment shown in FIG. 4 of the present invention, and the implementation principle and technical effects thereof are implemented. Similar, it will not be repeated here.
  • FIG. 10 is a schematic structural diagram of a third embodiment of a message processing apparatus in a base station networking environment according to the present invention. As shown in FIG. 10, this embodiment is based on the embodiment shown in FIG.
  • the second data packet is user plane data, and the device further includes: an allocation module 17, a saving module 18, and a sending module 19.
  • the receiving module 11 is further configured to receive, by the network side, a first bearer setup request message that carries the fifth feature information, where the fifth feature information includes the third source IP address, the third a destination IP address and the third information identifier, where the third information identifier is a first tunnel endpoint identifier TEID allocated by the network side to the host base station;
  • the allocating module 17 is further configured to allocate a second TEID to the remote base station according to the first bearer setup request message;
  • the saving module 18 is further configured to save the mapping relationship between the fifth feature information and the sixth feature information in the second forwarding table; the sixth feature information includes the fourth source IP address, the a fourth destination IP address and the second TEID;
  • the sending module 19 is configured to send a second bearer setup request message to the remote base station, where the remote base station returns, to the host base station, the seventh feature information, according to the second bearer setup request message.
  • a bearer setup response message where the seventh feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is the remote base station is the a third TEID allocated by the host base station;
  • the allocating module 17 is further configured to allocate a fourth TEID to the network side according to the bearer setup response message;
  • the saving module 18 is further configured to save the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table; the eighth feature information includes the second source IP address, the a second destination IP address and the fourth TEID.
  • the message processing device in the base station networking environment of the present embodiment can be used to implement the technical solution of the message processing method in the base station networking environment provided by the embodiment shown in FIG. 5 of the present invention, and the implementation principle and technical effects thereof are implemented. Similar, it will not be repeated here.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • the base station provided by the embodiment of the present invention includes a receiver 21 and a processor 22.
  • the receiver 21 is configured to receive the first data packet sent by the remote base station, where the first data packet includes the first source IP address, a first destination IP address, and a first information identifier.
  • the first source IP address is the IP address of the remote base station
  • the first destination IP address is the IP address of the host base station
  • the first information identifier is used by the remote base station to identify the user equipment on the S1 interface.
  • the UE, or the first information identifier is used to identify a transmission tunnel between the remote base station and the host base station; the processor 22 is configured to query the first forwarding table, obtain the first source IP address, The first destination IP address and the first information identifier respectively correspond to a second source IP address, a second destination IP address, and a second information identifier; the second source IP address is a public network IP address, where the The second destination IP address is the IP address of the network side; the second information identifier is used by the host base station to identify the UE on the S1 interface, or the second information identifier is used to identify the host base station and the network side.
  • the processor 22 is also used to The first source IP address, the first destination IP address, and the first information identifier in the first data packet are replaced by the second source IP address, the second destination IP address, and the The second information identifier is then sent to the network side.
  • the base station provided in this embodiment may be used to perform the technical solution of the message processing method in the base station networking environment provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the receiver 21 is further configured to receive, by the network side, a second data packet, where the second data packet includes a third source IP address, a third destination IP address, and a third information identifier, where The third source IP address is an IP address of the network side, the third destination IP address is the public network IP address, and the third information identifier is used by the mobility management entity MME on the S1 interface identifier.
  • the UE, or the third information identifier is used to identify a transmission tunnel between the network side and the host base station;
  • the processor 22 is further configured to query the second forwarding table, and obtain a fourth source IP address and a fourth destination respectively corresponding to the third source IP address, the third destination IP address, and the third information identifier.
  • the MME identifies the UE on the S1 interface, or the fourth information identifier is used to identify a transmission tunnel between the host base station and the remote base station;
  • the processor 22 is further configured to replace the third source IP address, the third destination IP address, and the third information identifier in the second data packet with the fourth source IP address, The fourth destination IP address and the fourth information identifier are then sent to the remote base station.
  • the base station provided in this embodiment may be used to perform the technical solution of the message processing method in the base station networking environment provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention. As shown in FIG. 12, the base station further includes a transmitter 23 on the basis of the embodiment shown in FIG.
  • the receiver 21 is further configured to receive, by the remote base station, a first initial user that carries the first feature information, if the first data packet and the second data packet are signaling plane data.
  • the first feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is that the remote base station is the host a first eNB UE S1AP ID allocated by the base station;
  • the processor 22 is further configured to allocate a second eNB UE S1AP ID to the network side according to the first initializing user message, and save the mapping relationship between the first feature information and the second feature information in the In the first forwarding table, the second feature information includes the second source IP address, the second destination IP address, and the second eNB UE S1AP ID;
  • the transmitter 23 is further configured to send, to the network side, a second initialization user message, where the network side returns, to the host base station, a network storage NAS that carries the third feature information according to the second initialization user message.
  • the third feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is that the MME allocates the host base station First MME UE S1AP ID;
  • the processor 22 is further configured to allocate a second MME UE S1AP ID to the remote base station according to the NAS message, and save a mapping relationship between the third feature information and the fourth feature information in the second In the forwarding table, the fourth feature information includes the fourth source IP address, the fourth Destination IP address and the second MME UE S1AP ID.
  • the base station provided in this embodiment may be used to perform the technical solution of the message processing method in the base station networking environment provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention. As shown in FIG. 13 , the base station further includes a transmitter 24 on the basis of the embodiment shown in FIG. 11 .
  • the receiver 21 is further configured to receive the first bearer setup request message that is sent by the network side and carries the fifth feature information, if the first data packet and the second data packet are user plane data.
  • the fifth feature information includes the third source IP address, the third destination IP address, and the third information identifier, where the third information identifier is allocated by the network side to the host base station.
  • the first tunnel endpoint identifies the TEID;
  • the processor 22 is further configured to allocate a second TEID to the remote base station according to the first bearer setup request message, and save the mapping relationship between the fifth feature information and the sixth feature information in the first In the second forwarding table, the sixth feature information includes the fourth source IP address, the fourth destination IP address, and the second TEID;
  • the transmitter 24 is further configured to send a second bearer setup request message to the remote base station, where the remote base station returns the seventh feature information to the host base station according to the second bearer setup request message.
  • the bearer setup response message, the seventh feature information includes the first source IP address, the first destination IP address, and the first information identifier, where the first information identifier is the remote base station Describe a third TEID allocated by the host base station;
  • the processor 22 is further configured to allocate a fourth TEID to the network side according to the bearer setup response message, and save the mapping relationship between the seventh feature information and the eighth feature information in the first forwarding table.
  • the eighth feature information includes the second source IP address, the second destination IP address, and the fourth TEID.
  • the base station provided in this embodiment may be used to perform the technical solution of the message processing method in the base station networking environment provided by any embodiment of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例涉及一种基于基站组网环境下的消息处理方法、装置和设备，该方法包括：接收远端基站发送的第一数据包，第一数据包包括第一源IP地址、第一目的IP地址和第一信息标识；宿主基站查询第一转发表，获取与第一源IP地址、第一目的IP地址和第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；宿主基站将第一数据包中的第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将第一数据包发送给网络侧。本发明实施例提供的基于基站组网环境下的消息处理方法、装置和设备，减少了开通远端基站时的投资，降低了系统的运营成本。

Description

基于基站组网环境下的消息处理方法、装置和设备 技术领域
本发明实施例涉及通信技术，特别涉及一种基于基站组网环境下的消息处理方法、装置和设备。
背景技术
随着网络业务量的增长，原有系统中的负载也越来越大，已渐渐难以承载越来越多的业务需求。另外，在网络通信中，由于无线电波会受到建筑物或人体的阻挡、外界的干扰等因素，造成基站的覆盖区域内会以一定概率出现盲区。
现有技术中主要通过增加远端基站数量的方式解决上述技术问题，从而达到扩容无线容量以及补盲的目的。具体地，主要通过增加小基站或微站的方式，采用宏微插花组网的组网方案，即围绕宏站附近的区域进行小基站或微站的扩容，通常小基站或微站的数量是宏站的数倍。
然而，现有技术中由于基站传输回传的需要，当增加远端基站时，承载网也要进行相应的修改，例如增加IP地址规划、增加传输承载网路由配置等，导致开通远端基站的投资较大，造成系统的运营成本较高。
发明内容
本发明实施例提供一种基于基站组网环境下的消息处理方法、装置和设备，用于降低系统的运营成本。
第一方面，本发明实施例提供一种基于基站组网环境下的消息处理方法，应用于基站系统，所述系统包括宿主基站和至少一个远端基站，所述宿主基站和各所述远端基站共用一个基站标识，并共享一个公网网络协议IP地址，所述方法包括：
所述宿主基站接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站 的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
所述宿主基站查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
所述宿主基站将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
结合第一方面，在第一方面的第一种可能的实现方式中，所述方法还包括：
所述宿主基站接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
所述宿主基站查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
所述宿主基站将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，若所述第一数据包和所述第二数据包为信令面数据，所述方法还 包括：
所述宿主基站接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
所述宿主基站根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID，并将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
所述宿主基站向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
所述宿主基站根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID，并将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，若所述第一数据包和所述第二数据包为用户面数据，所述方法还包括：
所述宿主基站接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
所述宿主基站根据所述第一承载建立请求消息，为所述远端基站分配第二TEID，并将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
所述宿主基站向所述远端基站发送第二承载建立请求消息，以供所述远 端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
所述宿主基站根据所述承载建立响应消息，为所述网络侧分配第四TEID，并将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
第二方面，本发明实施例提供一种基于基站组网环境下的消息处理装置，包括：
接收模块，用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
获取模块，用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
处理模块，用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
结合第二方面，在第二方面的第一种可能的实现方式中，所述接收模块，还用于接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息 标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
所述获取模块，还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
所述处理模块，还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，若所述第一数据包和所述第二数据包为信令面数据，则所述接收模块，还用于接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
所述装置还包括：分配模块、保存模块和发送模块；其中，
所述分配模块，用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID；
所述保存模块，用于将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
所述发送模块，用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
所述分配模块，还用于根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID；
所述保存模块，还用于将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
结合第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，若所述第一数据包和所述第二数据包为用户面数据，则所述接收模块，还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
所述装置还包括：分配模块、保存模块和发送模块；其中，
所述分配模块，还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID；
所述保存模块，还用于将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
所述发送模块，用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
所述分配模块，还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID；
所述保存模块，还用于将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
第三方面，本发明实施例提供一种基站，包括：
接收器，用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE， 或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
处理器，用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
所述处理器，还用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
结合第三方面，在第三方面的第一种可能的实现方式中，所述接收器，还用于接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
所述处理器，还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
所述处理器，还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，若所述第一数据包和所述第二数据包为信令面数据，则所述接收器还用于，接收所述远端基站发送的携带有第一特征信息的第一初始化用户 消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
所述处理器，还用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID，并将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
所述基站还包括：发送器；其中，
所述发送器，还用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
所述处理器，还用于根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID，并将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
结合第三方面的第一种可能的实现方式，在第三方面的第三种可能的实现方式中，若所述第一数据包和所述第二数据包为用户面数据，则所述接收器，还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
所述处理器，还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID，并将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
所述基站还包括：发送器；其中，
所述发送器，还用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第 七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
所述处理器，还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID，并将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
本发明提供的基于基站组网环境下的消息处理方法、装置和设备，宿主基站接收远端基站发送的第一数据包，通过查询第一转发表，获取与第一数据包中包含的第一源IP地址、第一目的IP地址和第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识，并将第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将第一数据包发送给网络侧。因此，当增加远端基站时，宿主基站可以通过查询第一转发表，获取第二源IP地址、第二目的IP地址和第二信息标识，以将远端基站发送的第一数据包转发到网络侧，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统的运营成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明基站系统的结构示意图；
图2为本发明基于基站组网环境下的消息处理方法实施例一的流程示意图；
图3为本发明基于基站组网环境下的消息处理方法实施例二的流程示意图；
图4为本发明基于基站组网环境下的消息处理方法实施例三的流程示意图；
图5为本发明基于基站组网环境下的消息处理方法实施例四的流程示意图；
图6为本发明基于基站组网环境下的消息处理方法实施例五的S1切换流程示意图；
图7为本发明基于基站组网环境下的消息处理方法实施例六的X2切换流程示意图；
图8为本发明基于基站组网环境下的消息处理装置实施例一的结构示意图；
图9为本发明基于基站组网环境下的消息处理装置实施例二的结构示意图；
图10为本发明基于基站组网环境下的消息处理装置实施例三的结构示意图；
图11为本发明提供的基站实施例一的结构示意图；
图12为本发明提供的基站实施例二的结构示意图；
图13为本发明提供的基站实施例三的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明基站系统的结构示意图，图1所示的基站系统中包括宿主基站11和至少一个远端基站12，宿主基站11和远端基站12之间存在S1接口和X2接口。其中，宿主基站11可以为各种物理实体，例如宏站，也可以是做长期演进(Long Time Evolution；简称：LTE)信令和业务汇聚和虚拟合一的设备，远端基站12可以为小站或微站。在基站系统中采用远端基站12通过宿主基站11汇聚的方式进行组网，其中，宿主基站11和各远端基站12之间可以通过以太网、光纤等有线方式进行连接，也可以通过无线传输方式进行连接，例如：无线保真技术(Wireless Fidelity；简称：WiFi)、微波等方式，对于宿主基站和远端基站之间的连接方式，本实施例在此不作特别限 制。另外，宿主基站11和各远端基站12之间共用一个基站标识，并共享一个公网网络协议(Internet Protocol；简称：IP)地址，宿主基站11和各远端基站12通过该公网IP地址与网络侧设备进行通信，网络侧设备例如可以是服务网关(Serving Gateway；简称：SGW)14、移动性管理实体(Mobility Management Entity；简称：MME)13或其他基站15，其中，宿主基站11与SGW 14和MME 13之间分别通过S1接口进行通信，宿主基站11与其他基站15之间通过X2接口进行通信。在实际应用过程中，远端基站12采用内部私网IP地址进行数据转发，其中，内部私网地址IP可以由宿主基站11自动分配，也可以由人工进行指定。当远端基站12获取到内部私网IP地址之后，宿主基站11会对远端基站12进行网络地址转换(Network Address Translation；简称：NAT)，以将远端基站12的内部私网IP地址转换为网络可见的公网IP地址。需要进行说明的是，如果宿主基站11与远端基站12之间存在无线传输设备，则该无线传输设备的IP地址和远端基站12一样，也采用内部私网地址，并由宿主基站11对其进行NAT转换。由此可见，当新增远端基站后，网络侧无需规划新增IP地址，也无需承载网路由，即可以达到快速开通远端基站的目的。其中，对于远端基站和无线传输设备的内部私网IP地址的分配方式，本发明对此不作特别限制。
采用远端基站通过宿主基站汇聚的方式进行组网之后，基站系统中的宿主基站和各远端基站之间不仅共用一个基站标识，共享一个IP地址，而且整个基站系统对外只有一个S1接口和一个X2接口，因此，从远端基站的角度来看，宿主基站可以充当网络侧设备或相邻基站的角色，而从网络侧或相邻基站的角度来看，远端基站不再是一个单独的基站，而仅是宿主基站的一个小区。远端基站与宿主基站之间存在S1接口和X2接口，而且宿主基站可以负责代理所有远端基站的信令。因此，采用本发明中的组网方式，在增加远端基站时，可以减少对网络侧的信令压力，简化S1/X2接口的规划和配置。
另外，本实施例中均以基站通过S1接口与网络侧进行通信为例进行说明，基站通过X2接口与其他基站之间进行通信的方式与S1接口类似，此处不再赘述。
图2为本发明基于基站组网环境下的消息处理方法实施例一的流程示意图。本发明实施例提供了一种基于基站组网环境下的消息处理方法，该方法 可以由任意执行基于基站组网环境下的消息处理方法的装置来执行，该装置可以通过软件和/或硬件实现。本实施例中，该装置可以集成在宿主基站中。
在上述图1所示系统架构的基础上，如图2所示，本实施例的方法可以包括：
步骤201、宿主基站接收远端基站发送的第一数据包，第一数据包包括第一源IP地址、第一目的IP地址和第一信息标识；其中，第一源IP地址为远端基站的IP地址，第一目的IP地址为宿主基站的IP地址，第一信息标识用于远端基站在S1接口标识UE，或者，第一信息标识用于标识远端基站与宿主基站之间的传输隧道。
在本实施例中，由远端基站发送给宿主基站的第一数据包中，封装有第一源IP地址、第一目的IP地址和第一信息标识，由于宿主基站和各远端基站共用一个基站标识，对于网络侧和相邻基站来说，宿主基站和各远端基站对外只呈现为一个基站，而基站系统内部仍然采用私网IP地址进行通信，因此，第一数据包中封装的第一源IP地址是远端基站的IP地址，第一目的IP地址为宿主基站的IP地址，第一信息标识包括第一eNB UE S1AP ID或第一隧道端点标识(Tunnel Endpoint Identifier；简称：TEID)，其中，第一eNB UE S1AP ID为远端基站分配的，用于远端基站在S1接口标识用户设备(User Equipment；简称：UE)，第一TEID为远端基站分配的，用于标识远端基站与宿主基站之间的传输隧道。
步骤202、宿主基站查询第一转发表，获取与第一源IP地址、第一目的IP地址和第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；第二源IP地址为公网IP地址，第二目的IP地址为网络侧的IP地址；第二信息标识用于宿主基站在S1接口标识UE，或者，第一信息标识用于标识宿主基站与网络侧之间的传输隧道。
在本实施例中，对于网络侧和相邻基站来说，由于宿主基站和各远端基站对外只呈现为一个基站，故整个基站系统只有一个S1接口和一个X2接口，远端基站可以看作是宿主基站的一个小区，而对于远端基站来说，宿主基站则可以充当网络侧设备或者相邻基站的角色，因此，宿主基站可以代理所有远端基站的信令，即宿主基站完成所有远端基站的S1AP、X2AP的代理功能。当宿主基站接收到远端基站发送的第一数据包之后，为了将第一数据包通过 公用的S1接口发送到网络侧，宿主基站需要查询第一转发表，以获取与第一源IP地址、第一目的IP地址和第一信息标识分别对应的公网IP地址、网络侧的IP地址以及第二信息标识，第二信息标识包括第二eNB UE S1AP ID或第二TEID，其中，第二eNB UE S1AP ID为宿主基站分配的，用于宿主基站在S1接口标识UE，第二TEID为宿主基站分配的，用于标识宿主基站与网络侧之间的传输隧道。
需要进行说明的是，宿主基站需要代理所有UE相关的信令，而对内终结小站的非UE相关的信令，对于网络侧下发的非UE相关的信令，宿主基站进行复制并分发到每一个远端基站，而对于需要回应网络侧的非UE相关的信令，宿主基站则需要收集所有远端基站的信令反馈消息，并将该些信令反馈消息返回网络侧。
另外，由于对于远端基站来说，宿主基站可以充当网络侧设备的角色，因此，宿主基站需要完成对远端基站的鉴权，以判断远端基站是否合法，以此提高系统的安全性。
步骤203、宿主基站将第一数据包中的第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将第一数据包发送给网络侧。
在本实施例中，宿主基站获取到第二源IP地址、第二目的IP地址和第二信息标识之后，将第一数据包中的第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将替换后的第一数据包发送给网络侧。
本发明实施例提供的基于基站组网环境下的消息处理方法，宿主基站接收远端基站发送的第一数据包，通过查询第一转发表，获取与第一数据包中包含的第一源IP地址、第一目的IP地址和第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识，并将第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将第一数据包发送给网络侧。因此，当增加远端基站时，宿主基站可以通过查询第一转发表，获取第二源IP地址、第二目的IP地址和第二信息标识，以将远端基站发送的第一数据包转发到网络侧，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统 的运营成本。
图3为本发明基于基站组网环境下的消息处理方法实施例二的流程示意图。本实施例在图2所示实施例的基础上，对宿主基站接收到网络侧发送的第二数据包的处理方式的实施例，做详细说明。在上述图1所示系统架构的基础上，如图3所示，本实施例的方法可以包括：
步骤301、宿主基站接收网络侧发送的第二数据包，第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，第三源IP地址为网络侧的IP地址，第三目的IP地址为公网IP地址，第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，第三信息标识用于标识网络侧与宿主基站之间的传输隧道。
在本实施例中，由网络侧发送给宿主基站的第二数据包中，封装有第三源IP地址、第三目的IP地址和第三信息标识，由于宿主基站和各远端基站共用一个公网IP地址，因此，当网络侧与基站系统进行通信时，只能通过宿主基站和远端基站共用的公网IP地址发送数据包，因此，该第三目的IP地址为公网IP地址。另外，第三信息标识包括第一MME UE S1AP ID或第三TEID，其中，第一MME UE S1AP ID为网络侧分配的，例如可以为移动性管理实体(Mobility Management Entity；简称：MME)进行分配，用于MME在S1接口标识UE，第三TEID为网络侧分配的，用于标识网络侧与宿主基站之间的传输隧道。
步骤302、宿主基站查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道。
在本实施例中，由于基站系统内部进行通信时，仍然使用基站各自的私网IP地址，因此，宿主基站需要将第二数据包中包含的公网IP地址映射为私网IP地址，在具体地实现过程中，当宿主基站接收到远端基站发送的第二数据包之后，会查询第二转发表，以获取与第二数据包中包含的第三源IP地址、第三目的IP地址和第三信息标识分别对应的第四源IP地址、第四目的 IP地址和第四信息标识。第四信息标识包括第二MME UE S1AP ID或第四TEID，其中，第二MME UE S1AP ID为宿主基站分配的，用于MME在S1接口标识UE，第四TEID为宿主基站分配的，用于标识宿主基站与远端基站之间的传输隧道。
步骤303、宿主基站将第二数据包中的第三源IP地址、第三目的IP地址和第三信息标识分别替换为第四源IP地址、第四目的IP地址和第四信息标识，然后将第二数据包发送给远端基站。
在本实施例中，宿主基站获取到第四源IP地址、第四目的IP地址和第四信息标识之后，将第二数据包中的第三源IP地址、第三目的IP地址和第三信息标识分别替换为第四源IP地址、第四目的IP地址和第四信息标识，然后将替换后的第二数据包发送给网络侧。
本发明实施例提供的基于基站组网环境下的消息处理方法，宿主基站接收网络侧发送的第二数据包，通过查询第二转发表，获取与第二数据包中包含的第三源IP地址、第三目的IP地址和第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识，并将第三源IP地址、第三目的IP地址和第三信息标识分别替换为第四源IP地址、第四目的IP地址和第四信息标识，然后将第二数据包转发给远端基站。因此，当增加远端基站时，宿主基站可以通过查询第二转发表，获取第三源IP地址、第三目的IP地址和第三信息标识，以将网络侧发送的第二数据包发送到远端基站，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统的运营成本。另外，由于在增加远端基站时，承载网无需进行修改，可以加快远端基站的建站速度，降低远端基站的建站成本。
图4为本发明基于基站组网环境下的消息处理方法实施例三的流程示意图。本实施例在上述各实施例的基础上，对第一转发表和第二转发表的建立的实施例，做详细说明。在上述图1所示系统架构的基础上，如图4所示，本实施例的方法可以包括：
步骤401、宿主基站接收远端基站发送的携带有第一特征信息的第一初始化用户消息，第一特征信息包括第一源IP地址、第一目的IP地址和第一信息标识，其中，第一信息标识为远端基站为宿主基站分配的第一eNB UE S1AP ID。
在本实施例中，当宿主基站接收到的第一数据包和第二数据包为信令面数据时，宿主基站需要根据包含有IP对以及S1AP ID的第一转发表和第二转发表进行信令面数据的转发，因此，宿主基站需要事先建立第一转发表和第二转发表。具体地，当UE与远端基站建立连接之后，远端基站会向宿主基站发送携带有第一特征信息的第一初始化消息，该第一特征信息中包括的第一源IP地址为远端基站的IP地址、第一目的IP地址为宿主基站的IP地址，第一信息标识为远端基站分配的第一eNB UE S1AP ID。
步骤402、宿主基站根据第一初始化用户消息，为网络侧分配第二eNB UE S1AP ID，并将第一特征信息和第二特征信息的映射关系保存在第一转发表中；第二特征信息包括第二源IP地址、第二目的IP地址和第二eNB UE S1AP ID。
在本实施例中，宿主基站接收到远端基站发送的第一初始化消息之后，根据该第一初始化消息为网络侧分配第二eNB UE S1AP ID，其中，第二eNB UE S1AP ID用于宿主基站在S1接口标识UE。宿主基站分配第二eNB UE S1AP ID后，将第一初始化消息中携带的第一源IP地址、第一目的IP地址、第一eNB UE S1AP ID与第二源IP地址、第二目的IP地址、第二eNB UE S1AP ID的映射关系保存在第一转发表中，其中，第二源IP地址为公网IP地址、第二目的IP地址为网络侧的IP地址。例如：远端基站的私网IP地址为192.168.1.10，宿主基站的IP地址为192.168.1.1，网络侧的IP地址为202.155.25.100，宿主基站对远端基站的私网IP地址进行NAT转换之后，获得基站系统的公网IP地址为202.155.22.100，另外，远端基站分配的第一eNB UE S1AP ID为01，宿主基站分配的第二eNB UE S1AP ID为02，因此，宿主基站会将“第一源IP地址：192.168.1.10，第一目的IP地址192.168.1.1，第一eNB UE S1AP ID 01”映射为“第二源IP地址：202.155.22.100，第二目的IP地址202.155.25.100，第二eNB UE S1AP ID 02”，并将该映射关系保存在第一转发表中。
步骤403、宿主基站向网络侧发送第二初始化用户消息，以供网络侧根据第二初始化用户消息向宿主基站返回携带有第三特征信息的网络存储NAS消息，第三特征信息包括第三源IP地址、第三目的IP地址和第三信息标识，其中，第三信息标识为网络侧为宿主基站分配的第一MME UE S1AP ID。
在本实施例中，宿主基站建立第一转发表之后，将携带有宿主基站为网络侧分配的eNB UE S1AP ID的第二初始化消息发送给网络侧，网络侧根据接收到的第二初始化消息，向宿主基站返回网络存储(Network Attached Storage；简称：NAS)消息，该NAS消息中携带有第三源IP地址、第三目的IP地址、第一MME UE S1AP ID以及宿主基站为网络侧分配的eNB UE S1AP ID，其中，第三源IP地址为网络侧的IP地址，第三目的IP地址为公网IP地址。
步骤404、宿主基站根据NAS消息，为远端基站分配第二MME UE S1AP ID，并将第三特征信息和第四特征信息的映射关系保存在第二转发表中；第四特征信息包括第四源IP地址、第四目的IP地址和第二MME UE S1AP ID。
在本实施例中，宿主基站根据接收到的NAS消息，为远端基站分配第二MME UE S1AP ID，其中，第二MME UE S1AP ID用于MME在S1接口标识UE。宿主基站分配第二MME UE S1AP ID后，将NAS消息中携带的第三源IP地址、第三目的IP地址、第一MME UE S1AP ID与第四源IP地址、第四目的IP地址、第二MME UE S1AP ID的映射关系保存在第二转发表中，其中，第四源IP地址为宿主基站的IP地址，第四目的IP地址为远端基站的IP地址。例如：当网络侧分配的第一MME UE S1AP ID为03，宿主基站分配的第二MME UE S1AP ID为04时，宿主基站会将“第三源IP地址：202.155.25.100，第三目的IP地址202.155.22.100，第一MME UE S1AP ID 03”映射为“第四源IP地址：192.168.1.1，第四目的IP地址192.168.1.10，第二MME UE S1AP ID 04”，并将该映射关系保存在第一转发表中。宿主基站建立第二转发表之后，会向远端基站发送NAS响应消息，以通知远端基站用户建立流程结束。
本发明实施例提供的基于基站组网环境下的消息处理方法，宿主基站根据接收到的远端基站发送的携带有第一源IP地址、第一目的IP地址和第一eNB UE S1AP ID的第一初始化消息，并根据第二源IP地址、第二目的IP地址和第二eNB UE S1AP ID，建立第一转发表；另外，宿主基站通过网络侧返回的携带有第三源IP地址、第三目的IP地址和第一MME UE S1AP ID的NAS消息，并根据第四源IP地址、第四目的IP地址和第二MME UE S1AP ID，建立第二转发表，使得宿主基站可以根据建立的第一转发表和第二转发表， 将数据包转发给远端基站或者网络侧，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统的运营成本。
需要进行说明的是，若UE与当前服务该UE的基站之间的链路处于断开状态，例如：UE切换到其他基站或者关机时，需要将第一转发表和第二转发表进行删除，具体地，网络侧向宿主基站发送UE上下文释放指令，由于UE上下文释放指令中携带的源IP地址为网络侧的IP地址，目的IP地址为公网IP地址，S1AP ID为网络侧分配的MME UE S1AP ID，而远端基站相对网络侧是不可见的，因此，宿主基站需要查询第二转发表，获取宿主基站的IP地址、远端基站的IP地址和宿主基站分配的MME UE S1AP ID，并将UE上下文释放指令中携带的源IP地址、目的IP地址以及网络侧分配的MME UE S1AP ID替换为获取到的宿主基站的IP地址、远端基站的IP地址和宿主基站分配的MME UE S1AP ID，以将替换后的UE上下文释放指令发送给远端基站，远端基站根据该UE上下文释放指令进行UE相关内容的释放，释放完成之后，向宿主基站返回UE上下文释放完成指令，此时，由于UE上下文释放完成指令中携带的源IP地址为远端基站的IP地址，目的IP地址为宿主基站的IP地址，S1AP ID为远端基站分配的eNB UE S1AP ID，因此，宿主基站需要查询第一转发表，获取公网IP地址、网络侧的IP地址以及宿主基站分配的eNB UE S1AP ID，并将UE上下文释放完成指令中携带的源IP地址、目的IP地址、远端基站分配的eNB UE S1AP ID替换为获取到的公网IP地址、网络侧的IP地址以及宿主基站分配的eNB UE S1AP ID，以将该UE上下文释放完成指令发送给网络侧，发送成功之后，将存储在本地的第一转发表和第二转发表删除。
图5为本发明基于基站组网环境下的消息处理方法实施例四的流程示意图。本实施例在图2或图3所示实施例的基础上，对第一转发表和第二转发表的建立的实施例，做详细说明。在上述图1所示系统架构的基础上，如图5所示，本实施例的方法可以包括：
步骤501、宿主基站接收网络侧发送的携带有第五特征信息的第一承载建立请求消息，第五特征信息包括第三源IP地址、第三目的IP地址和第三信息标识，其中，第三信息标识为网络侧为宿主基站分配的第一TEID。
在本实施例中，在进行用户面数据通信时，基站需要与网络侧建立承载， 以发送用户面数据。当宿主基站接收到的第一数据包和第二数据包为用户面数据时，宿主基站需要根据包含有IP对以及TEID的第一转发表和第二转发表进行用户面数据的转发，因此，宿主基站需要事先建立第一转发表和第二转发表。具体地，网络侧向宿主基站发送携带有第五特征信息的第一承载建立请求消息，该第五特征信息中包括的第三源IP地址为网络侧的IP地址、第三目的IP地址为公网IP地址，第三信息标识为网络侧分配的第一TEID，例如可以为SGW分配的第一TEID。
步骤502、宿主基站根据第一承载建立请求消息，为远端基站分配第二TEID，并将第五特征信息和第六特征信息的映射关系保存在第二转发表中；第六特征信息包括第四源IP地址、第四目的IP地址和第二TEID。
在本实施例中，宿主基站根据接收到的第一承载建立请求消息为远端基站分配第二TEID，其中，第二TEID用于标识宿主基站与远端基站之间的传输隧道，宿主基站分配第二TEID之后，将第一承载建立请求消息中携带的第三源IP地址、第三目的IP地址、第一TEID与第四源IP地址、第四目的IP地址、第二TEID的映射关系保存在第二转发表中，其中，第四源IP地址为宿主基站的IP地址、第四目的IP地址为远端基站的IP地址。例如：网络侧的IP地址为202.155.25.100，宿主基站的IP地址为192.168.1.1，远端基站的私网IP地址为192.168.1.10，宿主基站对远端基站的私网IP地址进行NAT转换之后，获得基站系统的公网IP地址为202.155.22.100，另外，网络侧分配的第一TEID为05，宿主基站分配的第二TEID为06，因此，宿主基站会将“第三源IP地址：202.155.25.100，第三目的IP地址202.155.22.100，第一TEID 05”映射为“第四源IP地址：192.168.1.1，第四目的IP地址192.168.1.10，第二TEID 06”，并将该映射关系保存在第二转发表中。
步骤503、宿主基站向远端基站发送第二承载建立请求消息，以供远端基站根据第二承载建立请求消息向宿主基站返回携带有第七特征信息的承载建立响应消息，第七特征信息包括第一源IP地址、第一目的IP地址和第一信息标识，其中，第一信息标识为远端基站为宿主基站分配的第三TEID。
在本实施例中，宿主基站为远端基站分配第二TEID之后，将携带有第二TEID的第二承载建立请求消息发送给远端基站，远端基站根据该第二承载建立请求消息向宿主基站返回承载建立响应消息，该承载建立响应消息中 携带有第一源IP地址、第一目的IP地址和第三TEID，其中，第一源IP地址为远端基站的IP地址，第一目的IP地址为宿主基站的IP地址，第三TEID为远端基站为宿主基站所分配的。
步骤504、宿主基站根据承载建立响应消息，为网络侧分配第四TEID，并将第七特征信息和第八特征信息的映射关系保存在第一转发表中；第八特征信息包括第二源IP地址、第二目的IP地址和第四TEID。
在本实施例中，宿主基站根据接收到的承载建立响应消息，为网络侧分配第四TEID，其中，第四TEID用于标识宿主基站与网络侧之间的传输隧道。宿主基站分配第四TEID后，将承载建立响应消息中携带的第一源IP地址、第一目的IP地址、第三TEID与第二源IP地址、第二目的IP地址、第四TEID的映射关系保存在第一转发表中，其中，第二源IP地址为公网IP地址，第二目的IP地址为网络侧的IP地址。例如：当远端基站分配的第三TEID为07，宿主基站分配的第四TEID为08时，宿主基站会将“第一源IP地址：192.168.1.10，第一目的IP地址192.168.1.1，第三TEID 07”映射为“第二源IP地址：202.155.22.100，第二目的IP地址202.155.25.100，第四TEID 08”，并将该映射关系保存在第一转发表中。宿主基站建立第一转发表之后，会向网络侧发送承载建立响应消息，以通知网络侧承载建立流程结束。
本发明实施例提供的基于基站组网环境下的消息处理方法，宿主基站根据接收到的网络侧发送的携带有第三源IP地址、第三目的IP地址和第一TEID的第一承载建立请求消息，并根据第四源IP地址、第四目的IP地址和第二TEID，建立第二转发表；另外，宿主基站通过远端基站返回的携带有第一源IP地址、第一目的IP地址和第三TEID的承载建立响应消息，并根据第二源IP地址、第二目的IP地址和第四TEID，建立第一转发表，使得宿主基站可以根据建立的第一转发表和第二转发表，将数据包转发给远端基站或者网络侧，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统的运营成本。
需要进行说明的是，若UE与基站的业务结束之后，需要进行承载释放，也即将第一转发表和第二转发表删除，具体地，网络侧向宿主基站发送承载释放指令，由于承载释放指令中携带的源IP地址为网络侧的IP地址，目的IP地址为公网IP地址，S1AP ID为网络侧分配的MME UE S1AP ID，而远端 基站相对网络侧是不可见的，因此，宿主基站需要查询第二转发表，获取宿主基站的IP地址、远端基站的IP地址和宿主基站分配的MME UE S1AP ID，并将承载释放指令中携带的源IP地址，目的IP地址以及网络侧分配的MME UE S1AP ID替换为获取到的宿主基站的IP地址、远端基站的IP地址和宿主基站分配的MME UE S1AP ID，以将替换后的承载释放指令发送给远端基站，远端基站根据该承载释放指令进行承载的释放，释放完成之后，向宿主基站返回承载释放完成指令，此时，由于承载释放完成指令中携带的源IP地址为远端基站的IP地址，目的IP地址为宿主基站的IP地址，S1AP ID为远端基站分配的eNB UE S1AP ID，因此，宿主基站需要查询第一转发表，获取公网IP地址、网络侧的IP地址以及宿主基站分配的eNB UE S1AP ID，并将承载释放完成指令中携带的源IP地址，目的IP地址，远端基站分配的eNB UE S1AP ID替换为获取到的公网IP地址、网络侧的IP地址以及宿主基站分配的eNB UE S1AP ID，以将该UE上下文释放完成指令发送给网络侧，发送成功之后，将存储在本地的第一转发表和第二转发表删除。
下面以UE逐渐从基站系统的覆盖范围移动到其他基站的覆盖范围为例，在上述各实施例的基础上，对S1接口的切换过程进行说明。图6为本发明基于基站组网环境下的消息处理方法实施例五的S1切换流程示意图。在上述图1所示系统架构的基础上，如图6所示，在本实施例中，假设基站系统中宿主基站与各远端基站之间进行无线连接，且宿主基站与各远端基站共用一个基站标识，并共享同一个IP地址，则S1的切换流程具体如下：
步骤601、远端基站向宿主基站发送切换请求消息。
步骤602、宿主基站将接收到的切换请求消息发送给MME。
步骤603、MME向其他基站发送切换请求消息。
步骤604、其他基站根据该切换请求消息向MME返回切换请求响应消息。
步骤605、MME根据接收到的切换请求响应消息向宿主基站发送第一切换指令，其中，该切换指令中携带有MME的IP地址、公网IP地址以及MME为宿主基站分配的第一TEID。
步骤606、宿主基站根据第一切换指令，为远端基站分配第二TEID，并将MME的IP地址、公网IP地址、第一TEID与宿主基站的IP地址、远端 基站的IP地址、第二TEID的映射关系保存在转发表中。
步骤607、宿主基站向远端基站发送第二切换指令，其中，该第二切换指令中携带有宿主基站的IP地址、远端基站的IP地址以及宿主基站为远端基站分配的第二TEID。
步骤608、远端基站向UE发送第三切换指令。
步骤609、远端基站向宿主基站发送基站SN状态转发消息。
步骤610、宿主基站将接收到的基站SN状态转发消息发送给MME。
步骤611、MME根据接收到的基站SN状态转发消息，向其他基站发送MME SN状态转发消息。
步骤612、远端基站将数据发送到宿主基站，宿主基站将该数据前送到MME。
步骤613、MME将数据前送到其他基站。
步骤614、UE向其他基站发送切换确认消息。
步骤615、其他基站将接收到的切换确认消息发送到MME。
步骤616、MME向宿主基站发送UE上下文释放消息。
步骤617、宿主基站向远端基站发送UE上下文释放消息。
步骤618、宿主基站将建立的转发表删除。
自此，UE从基站系统的覆盖范围移动到其他基站的覆盖范围时，S1接口的切换过程完成。需要进行说明的是，当UE从其他基站的覆盖范围移动到基站系统的覆盖范围时，S1接口的切换过程与上述流程类似，不同之处仅在于所有消息的发送方向与上述流程中的发送方向相反。
下面以UE逐渐从基站系统的覆盖范围移动到其他基站的覆盖范围为例，在上述各实施例的基础上，对X2接口的切换过程进行说明。图7为本发明基于基站组网环境下的消息处理方法实施例六的X2切换流程示意图。在上述图1所示系统架构的基础上，如图7所示，在本实施例中，假设基站系统中宿主基站与各远端基站之间进行无线连接，且宿主基站与各远端基站共用一个基站标识，并共享同一个IP地址，则X2的切换流程具体如下：
步骤701、远端基站向宿主基站发送切换请求消息。
步骤702、宿主基站将接收到的切换请求消息发送给其他基站。
步骤703、其他基站根据接收到的切换请求消息，向宿主基站返回第一 切换指令，其中，该第一切换指令中携带有其他基站的IP地址、公网IP地址以及其他基站分配的第一TEID。
步骤704、宿主基站根据第一切换指令，向远端基站分配第二TEID，并将其他基站的IP地址、公网IP地址、第一TEID与宿主基站的IP地址、远端基站的IP地址、第二TEID的映射关系保存在转发表中。
步骤705、宿主基站向远端基站发送第二切换指令，其中，该第二切换指令中携带有宿主基站的IP地址、远端基站的IP地址以及宿主基站为远端基站分配的第二TEID。
步骤706、远端基站向UE发送第三切换指令。
步骤707、远端基站向宿主基站发送基站SN状态转发消息。
步骤708、宿主基站将接收到的基站SN状态转发消息发送给其他基站。
步骤709、远端基站将数据发送到宿主基站，宿主基站将该数据前送到其他基站。
步骤710、UE向其他基站发送切换确认消息。
步骤711、其他基站向宿主基站发送UE上下文释放消息。
步骤712、宿主基站向远端基站发送UE上下文释放消息。
步骤713、宿主基站将建立的转发表删除。
自此，UE从基站系统的覆盖范围移动到其他基站的覆盖范围时，X2接口的切换过程完成。需要进行说明的是，当UE从其他基站的覆盖范围移动到基站系统的覆盖范围时，X2接口的切换过程与上述流程类似，不同之处仅在于所有消息的发送方向与上述流程中的发送方向相反。
需要进行说明的是，在基站系统内部，两个远端基站之间进行X2接口的切换时，由于宏站已经广播所有E-UTRAN小区全局标识符(E-UTRAN Cell Global Identifier；简称：ECGI)给各远端基站，因此，远端基站之间可以直接建立X2链路，而不需要通过宿主基站进行消息的中转。
图8为本发明基于基站组网环境下的消息处理装置实施例一的结构示意图，如图8所示，本发明实施例提供的基于基站组网环境下的消息处理装置包括接收模块11，获取模块12和处理模块13。
其中，接收模块11用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中， 所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；获取模块12用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；处理模块13用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
本发明实施例提供的基于基站组网环境下的消息处理装置，宿主基站接收远端基站发送的第一数据包，通过查询第一转发表，获取与第一数据包中包含的第一源IP地址、第一目的IP地址和第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识，并将第一源IP地址、第一目的IP地址和第一信息标识分别替换为第二源IP地址、第二目的IP地址和第二信息标识，然后将第一数据包发送给网络侧。因此，当增加远端基站时，宿主基站可以通过查询第一转发表，获取第二源IP地址、第二目的IP地址和第二信息标识，以将远端基站发送的第一数据包转发到网络侧，避免了现有技术中增加远端基站时，承载网也要进行相应修改的现象，从而降低了系统的运营成本。
可选地，所述接收模块11还用于接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
所述获取模块12还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四 目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
所述处理模块13还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
本实施例的基于基站组网环境下的消息处理装置，可以用于执行本发明图3所示实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图9为本发明基于基站组网环境下的消息处理装置实施例二的结构示意图，如图9所示，本实施例在图8所示实施例的基础上，若所述第一数据包和所述第二数据包为信令面数据，则所述装置还包括：分配模块14、保存模块15和发送模块16。
其中，所述接收模块11还用于接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
所述分配模块14用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID；
所述保存模块15用于将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
所述发送模块16用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
所述分配模块14还用于根据所述NAS消息，为所述远端基站分配第二 MME UE S1AP ID；
所述保存模块15还用于将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
本实施例的基于基站组网环境下的消息处理装置，可以用于执行本发明图4所示实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图10为本发明基于基站组网环境下的消息处理装置实施例三的结构示意图，如图10所示，本实施例在图8所示实施例的基础上，若所述第一数据包和所述第二数据包为用户面数据，则所述装置还包括：分配模块17、保存模块18和发送模块19。
其中，所述接收模块11还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
所述分配模块17还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID；
所述保存模块18还用于将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
所述发送模块19用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
所述分配模块17还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID；
所述保存模块18还用于将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
本实施例的基于基站组网环境下的消息处理装置，可以用于执行本发明图5所示实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图11为本发明提供的基站实施例一的结构示意图。如图11所示，本发明实施例提供的基站包括接收器21和处理器22。
其中，接收器21用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；处理器22用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；所述处理器22还用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
本实施例提供的基站，可以用于执行本发明任意实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
可选地，所述接收器21还用于接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
所述处理器22还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目 的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
所述处理器22还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
本实施例提供的基站，可以用于执行本发明任意实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图12为本发明提供的基站实施例二的结构示意图，如图12所示，本实施例在图11所示实施例的基础上，所述基站还包括发送器23。
其中，若所述第一数据包和所述第二数据包为信令面数据，则所述接收器21还用于接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
所述处理器22还用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID，并将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
所述发送器23还用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
所述处理器22还用于根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID，并将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四 目的IP地址和所述第二MME UE S1AP ID。
本实施例提供的基站，可以用于执行本发明任意实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图13为本发明提供的基站实施例三的结构示意图，如图13所示，本实施例在图11所示实施例的基础上，所述基站还包括发送器24。
其中，若所述第一数据包和所述第二数据包为用户面数据，则所述接收器21还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
所述处理器22还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID，并将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
所述发送器24还用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
所述处理器22还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID，并将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
本实施例提供的基站，可以用于执行本发明任意实施例所提供的基于基站组网环境下的消息处理方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块， 以完成以上描述的全部或者部分功能。上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案 的本质脱离本申请各实施例技术方案的精神和范围。

Claims (12)

  1. 一种基于基站组网环境下的消息处理方法，其特征在于，应用于基站系统，所述系统包括宿主基站和至少一个远端基站，所述宿主基站和至少一个所述远端基站共用一个基站标识，并共享一个公网网络协议IP地址，所述方法包括：
    所述宿主基站接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
    所述宿主基站查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
    所述宿主基站将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述宿主基站接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
    所述宿主基站查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME 在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
    所述宿主基站将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
  3. 根据权利要求2所述的方法，其特征在于，若所述第一数据包和所述第二数据包为信令面数据，所述方法还包括：
    所述宿主基站接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
    所述宿主基站根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID，并将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
    所述宿主基站向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
    所述宿主基站根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID，并将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
  4. 根据权利要求2所述的方法，其特征在于，若所述第一数据包和所述第二数据包为用户面数据，所述方法还包括：
    所述宿主基站接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
    所述宿主基站根据所述第一承载建立请求消息，为所述远端基站分配第二TEID，并将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
    所述宿主基站向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
    所述宿主基站根据所述承载建立响应消息，为所述网络侧分配第四TEID，并将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
  5. 一种基于基站组网环境下的消息处理装置，其特征在于，包括：
    接收模块，用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
    获取模块，用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
    处理模块，用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
  6. 根据权利要求5所述的装置，其特征在于，所述接收模块，还用于接 收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
    所述获取模块，还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
    所述处理模块，还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
  7. 根据权利要求6所述的装置，其特征在于，若所述第一数据包和所述第二数据包为信令面数据，则所述接收模块，还用于接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
    所述装置还包括：分配模块、保存模块和发送模块；其中，
    所述分配模块，用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID；
    所述保存模块，用于将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
    所述发送模块，用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME 为所述宿主基站分配的第一MME UE S1AP ID；
    所述分配模块，还用于根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID；
    所述保存模块，还用于将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
  8. 根据权利要求6所述的装置，其特征在于，若所述第一数据包和所述第二数据包为用户面数据，则所述接收模块，还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
    所述装置还包括：分配模块、保存模块和发送模块；其中，
    所述分配模块，还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID；
    所述保存模块，还用于将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
    所述发送模块，用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
    所述分配模块，还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID；
    所述保存模块，还用于将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
  9. 一种基站，其特征在于，包括：
    接收器，用于接收所述远端基站发送的第一数据包，所述第一数据包包括所述第一源IP地址、第一目的IP地址和第一信息标识；其中，所述第一 源IP地址为所述远端基站的IP地址，所述第一目的IP地址为所述宿主基站的IP地址，所述第一信息标识用于所述远端基站在S1接口标识用户设备UE，或者，所述第一信息标识用于标识所述远端基站与所述宿主基站之间的传输隧道；
    处理器，用于查询第一转发表，获取与所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别对应的第二源IP地址、第二目的IP地址和第二信息标识；所述第二源IP地址为公网IP地址，所述第二目的IP地址为网络侧的IP地址；所述第二信息标识用于所述宿主基站在S1接口标识UE，或者，所述第二信息标识用于标识所述宿主基站与所述网络侧之间的传输隧道；
    所述处理器，还用于将所述第一数据包中的所述第一源IP地址、所述第一目的IP地址和所述第一信息标识分别替换为所述第二源IP地址、所述第二目的IP地址和所述第二信息标识，然后将所述第一数据包发送给网络侧。
  10. 根据权利要求9所述的基站，其特征在于，所述接收器，还用于接收所述网络侧发送的第二数据包，所述第二数据包包括第三源IP地址、第三目的IP地址和第三信息标识；其中，所述第三源IP地址为所述网络侧的IP地址，所述第三目的IP地址为所述公网IP地址，所述第三信息标识用于所述移动性管理实体MME在S1接口标识UE，或者，所述第三信息标识用于标识所述网络侧与所述宿主基站之间的传输隧道；
    所述处理器，还用于查询第二转发表，获取与所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别对应的第四源IP地址、第四目的IP地址和第四信息标识；所述第四源IP地址为所述宿主基站的IP地址，所述第四目的IP地址为所述远端基站的IP地址；所述第四信息标识用于所述MME在S1接口标识UE，或者，所述第四信息标识用于标识所述宿主基站与所述远端基站之间的传输隧道；
    所述处理器，还用于将所述第二数据包中的所述第三源IP地址、所述第三目的IP地址和所述第三信息标识分别替换为所述第四源IP地址、所述第四目的IP地址和所述第四信息标识，然后将所述第二数据包发送给所述远端基站。
  11. 根据权利要求10所述的基站，其特征在于，若所述第一数据包和所 述第二数据包为信令面数据，则所述接收器还用于，接收所述远端基站发送的携带有第一特征信息的第一初始化用户消息，所述第一特征信息包括所述第一源IP地址、所述第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第一eNB UE S1AP ID；
    所述处理器，还用于根据所述第一初始化用户消息，为所述网络侧分配第二eNB UE S1AP ID，并将所述第一特征信息和第二特征信息的映射关系保存在所述第一转发表中；所述第二特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第二eNB UE S1AP ID；
    所述基站还包括：发送器；其中，
    所述发送器，还用于向所述网络侧发送第二初始化用户消息，以供所述网络侧根据所述第二初始化用户消息向所述宿主基站返回携带有第三特征信息的网络存储NAS消息，所述第三特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述MME为所述宿主基站分配的第一MME UE S1AP ID；
    所述处理器，还用于根据所述NAS消息，为所述远端基站分配第二MME UE S1AP ID，并将所述第三特征信息和第四特征信息的映射关系保存在所述第二转发表中；所述第四特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二MME UE S1AP ID。
  12. 根据权利要求10所述的基站，其特征在于，若所述第一数据包和所述第二数据包为用户面数据，则所述接收器，还用于接收所述网络侧发送的携带有第五特征信息的第一承载建立请求消息，所述第五特征信息包括所述第三源IP地址、所述第三目的IP地址和所述第三信息标识，其中，所述第三信息标识为所述网络侧为所述宿主基站分配的第一隧道端点标识TEID；
    所述处理器，还用于根据所述第一承载建立请求消息，为所述远端基站分配第二TEID，并将所述第五特征信息和第六特征信息的映射关系保存在所述第二转发表中；所述第六特征信息包括所述第四源IP地址、所述第四目的IP地址和所述第二TEID；
    所述基站还包括：发送器；其中，
    所述发送器，还用于向所述远端基站发送第二承载建立请求消息，以供所述远端基站根据所述第二承载建立请求消息向所述宿主基站返回携带有第 七特征信息的承载建立响应消息，所述第七特征信息包括所述第一源IP地址、第一目的IP地址和所述第一信息标识，其中，所述第一信息标识为所述远端基站为所述宿主基站分配的第三TEID；
    所述处理器，还用于根据所述承载建立响应消息，为所述网络侧分配第四TEID，并将所述第七特征信息和第八特征信息的映射关系保存在所述第一转发表中；所述第八特征信息包括所述第二源IP地址、所述第二目的IP地址和所述第四TEID。
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