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CN114071606B - Switching method, switching device and control equipment - Google Patents

Switching method, switching device and control equipment Download PDF

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Publication number
CN114071606B
CN114071606B CN202010783253.6A CN202010783253A CN114071606B CN 114071606 B CN114071606 B CN 114071606B CN 202010783253 A CN202010783253 A CN 202010783253A CN 114071606 B CN114071606 B CN 114071606B
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China
Prior art keywords
tunnel
base station
bearer
halob
switching
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CN202010783253.6A
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CN114071606A (en
Inventor
孙立新
李娜
孙玉飞
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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Priority to CN202010783253.6A priority Critical patent/CN114071606B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a switching method, a switching device and a control device, which relate to the technical field of communication, wherein the method comprises the steps that a first base station of a first HaloB receives a switching request message which is sent by a second HaloB and aims at a first terminal; the first base station determines the address of a second SGW of a second HaloB according to the first bearer, and allocates a new first wireless bearer identifier for the first bearer; the first base station sends the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station to the second HaloB, and establishes the switching tunnel and the bearer tunnel between the first base station and the second HaloB; the first base station receives the switching data through the switching tunnel and sends the switching data to the first terminal, and receives the new data through the bearing tunnel and sends the new data to the first terminal. The method reduces the need of processing a switching list and information carried during switching between two base stations, and reduces the creation and forwarding of a transmission path of the second HaloB based on the internal redundancy of the S1 tunnel switching time connection tunnel.

Description

Switching method, switching device and control equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a switching method, a device, and a control device.
Background
The mobile communication network is composed of a base station and a core network, and the HaloB device is a base station aggregating light core network capabilities, i.e. the core network capabilities and the base station capabilities are localized, which provides necessary core network capabilities, such as attachment of user equipment, signaling transmission, control, etc., in addition to the capabilities of the base station.
When the initial user equipment is attached to the HaloB, the HaloB interacts with the remote management center to acquire the subscription information of the equipment, and the subscription information is stored locally, so that when the equipment is attached again, verification, authorization and the like of local subscription data are realized, and meanwhile, when the remote core network fails, the user of the local stored subscription information can be prevented from being influenced by the remote core network and can be normally attached to the network for communication and the like.
Because the base station and the core network are all deployed on the same equipment, the base station on each equipment interacts with the network node on the equipment by default, establishes a bearing with the service gateway SGW of the equipment, and provides connection service for the terminal. When a terminal moves from one HaloB device to another HaloB device, a session anchor point is switched, i.e. the current service is interrupted, so that the reattachment connection can be performed.
Disclosure of Invention
The embodiment of the invention provides a switching method, a switching device and a control device, which are used for solving the problem that in the prior art, when UE moves from one HaloB device to another HaloB device, switching of a session anchor point occurs, namely, the current service is interrupted, and then reattachment connection can be performed.
In order to solve the technical problems, the invention adopts the following technical scheme:
a handover method applied to a first HaloB, comprising:
a first base station of a first HaloB receives a switching request message for a first terminal sent by a second HaloB, wherein the switching request message carries indication information of a first bearer;
a first base station of a first HaloB determines an address of a second SGW of the second HaloB according to the first bearer, allocates a new first radio bearer identifier to the first bearer, and generates a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, wherein the handover tunnel is used for forwarding handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used for forwarding new data on the first bearer;
A first base station of a first HaloB sends indication information of the first bearer, tunnel endpoint information of a switching tunnel and a bearer tunnel at a target base station to the second HaloB, and establishes the switching tunnel and the bearer tunnel between the first base station and the second HaloB;
and the first base station of the first HaloB receives the switching data through the switching tunnel and sends the switching data to the first terminal, and receives the new data through the bearing tunnel and sends the new data to the first terminal.
Further, the tunnel endpoint information includes a tunnel endpoint identification and an IP address.
Further, the first bearer is all or part of the first bearer of the first terminal, and the part of the first bearer is the bearer of the current bearer service.
Further, the switching request message also carries first security information;
wherein the first security information is security information of a second base station of the second HaloB.
Further, the method further comprises:
generating second safety information according to the first safety information.
Further, the handover request message also carries second MME information of the second HaloB;
the sending, to the second HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the second HaloB, including:
A first base station of a first HaloB sends a switching request response message to a second base station of the second HaloB, and a switching tunnel between the first base station and the second base station of the second HaloB is established, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
and the first base station of the first HaloB sends a path switching request message to the second MME, wherein the path switching request message carries the indication information of the first bearer and the tunnel endpoint information of the bearer tunnel at the target base station so as to establish the bearer tunnel between the first base station and the second SGW of the second HaloB.
Further, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
Further, the sending the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station to the second HaloB, and establishing the handover tunnel and the bearer tunnel with the second HaloB, includes:
a first base station of a first HaloB sending a handover request response message to a second MME of the second HaloB, establishing a handover tunnel from the second base station of the second HaloB, reaching the first base station via the second MME, and establishing a bearer tunnel between the first base station and a second SGW of the second HaloB;
The switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
Further, the switching tunnel is an S1 tunnel, and the bearer tunnel is an S1 tunnel.
Further, the sending, to the second HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the second HaloB, further includes:
the method comprises the steps that a first base station of a first HaloB sends a switching request response message to a second MME of a second HaloB, a switching tunnel between the first base station and the second base station of the second HaloB is established, and a bearing tunnel between the first base station and a second SGW of the second HaloB is established, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at a target base station.
Further, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
The embodiment of the invention also provides a switching method applied to the second HaloB, which comprises the following steps:
A second base station of the second HaloB sends a switching request message for the first terminal to a first base station of the first HaloB, wherein the switching request message carries indication information of a first bearer;
receiving a first bearer allocation new first wireless bearer identifier sent by a first base station of a first HaloB and tunnel endpoint information of a switching tunnel and a bearer tunnel corresponding to the first wireless bearer identifier one to one, wherein the switching tunnel is used for forwarding switching data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used for forwarding new data on the first bearer;
and receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station, which are sent by the first base station of the first HaloB, and establishing the switching tunnel and the bearer tunnel between the switching tunnel and the first HaloB.
Further, the tunnel endpoint information comprises a tunnel endpoint identifier and an IP address;
the first bearer is all or part of the first terminal, and the part of the first bearer is the bearer of the current bearer service.
Further, the switching request message also carries first security information;
The first security information is security information of the second base station.
Further, the handover request message also carries second MME information of a second HaloB;
receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station, which are sent by the first HaloB, and establishing the switching tunnel and the bearer tunnel between the switching tunnel and the bearer tunnel with the first HaloB, wherein the method comprises the following steps:
receiving a switching request response message sent by a first base station of the first HaloB, and establishing a switching tunnel between a second base station of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
the second MME receives a path switching request message sent by the first base station, wherein the path switching request message carries indication information of the first bearer and tunnel endpoint information of a bearer tunnel at a target base station so as to establish the bearer tunnel between a second SGW of the second HaloB and the first base station.
Further, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
Further, the establishing the switching tunnel and the bearing tunnel between the first HaloB and the first base station receiving the indication information of the first bearing, the switching tunnel and the tunnel endpoint information of the bearing tunnel at the target base station sent by the first base station of the first HaloB includes:
a second MME of the second HaloB receives a switching request response message sent by a first base station of the first HaloB, establishes a switching tunnel reaching the first base station from the second base station of the second HaloB through the second MME, and establishes a bearing tunnel between a second SGW of the second HaloB and the first base station;
the switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
Further, the switching tunnel is an S1 tunnel, and the bearer tunnel is an S1 tunnel.
Further, the method for establishing the switching tunnel and the bearing tunnel between the first base station receiving the first HaloB further includes the steps of:
The second MME of the second HaloB receives a switching request response message sent by the first base station of the first HaloB, establishes a switching tunnel between the second base station of the second HaloB and the first base station, and establishes a bearing tunnel between the second SGW of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at the first base station.
Further, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
The embodiment of the invention also provides a switching device applied to the first HaloB, which comprises:
the first receiving module is used for receiving a switching request message for the first terminal sent by the second HaloB, wherein the switching request message carries indication information of a first bearer;
an allocation generating module, configured to determine, according to the first bearer, an address of a second SGW of the second HaloB, allocate a new first radio bearer identifier to the first bearer, and generate a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used to forward new data on the first bearer;
The first sending module is used for sending the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station to the second HaloB by the first base station of the first HaloB, and establishing the switching tunnel and the bearer tunnel between the first base station and the second HaloB;
the second sending module is used for receiving the switching data by the first base station of the first HaloB through the switching tunnel and sending the switching data to the first terminal, and receiving the new data by the bearing tunnel and sending the new data to the first terminal.
The embodiment of the invention also provides a switching device applied to the second HaloB, which comprises:
the third sending module is used for sending a switching request message aiming at the first terminal to the second base station of the second HaloB, wherein the switching request message carries indication information of the first bearer;
a second receiving module, configured to receive a first bearer allocation new first radio bearer identifier sent by a first base station of a first HaloB, and tunnel endpoint information of a handover tunnel and a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used to forward incoming data on the first bearer;
And the third receiving module is used for receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearing tunnel at the target base station, which are sent by the first base station of the first HaloB, and establishing the switching tunnel and the bearing tunnel between the switching tunnel and the bearing tunnel and the first HaloB.
The embodiment of the invention also provides a control device which comprises a memory, a processor and a program which is stored in the memory and can run on the processor; the processor implements the handover method as described above when executing the program.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the handover method as described above.
The beneficial effects of the invention are as follows:
in the switching method of the embodiment of the invention, after receiving the command related to switching, the first base station of the first HaloB can select the second MME connected with the second HaloB; when switching between two HaloBs, only the currently used bearer can be switched, and the unused bearer can not be switched; an S1 tunnel switching message flow is used for building an X2 switching tunnel, so that the need of processing a switching list when X2 switching is carried out between a first base station and a second base station and the second MME information carrying a second HaloB when switching can be reduced; the time delay of creation and forwarding of the transmission path of the second HaloB based on redundancy of the indirect tunnel inside the second HaloB when the S1 tunnel is switched is reduced.
Drawings
FIG. 1 is a schematic diagram showing steps of a handover method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing another step of a handover method according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of a switching device according to an embodiment of the present invention;
fig. 4 is another schematic block diagram of a switching device according to an embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent.
The invention provides a switching method, a device and a control device, aiming at the problem that in the prior art, when UE moves from one HaloB device to another HaloB device, switching of a session anchor point occurs, namely current service is interrupted, and reattachment connection can be carried out.
As shown in fig. 1, an embodiment of the present invention provides a handover method applied to a first HaloB, including:
step 11, a first base station of a first HaloB receives a switching request message for a first terminal sent by a second HaloB, wherein the switching request message carries indication information of a first bearer;
step 12, a first base station of a first HaloB determines an address of a second SGW of the second HaloB according to the first bearer, allocates a new first radio bearer identifier to the first bearer, and generates a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, wherein the handover tunnel is used for forwarding handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used for forwarding new data on the first bearer;
Step 13, a first base station of a first HaloB sends indication information of the first bearer, tunnel endpoint information of a switching tunnel and a bearer tunnel at a target base station to the second HaloB, and establishes the switching tunnel and the bearer tunnel between the first base station and the second HaloB;
step 14, the first base station of the first HaloB receives the switching data through the switching tunnel and sends the switching data to the first terminal, and receives the new data through the bearing tunnel and sends the new data to the first terminal.
The switching tunnel is used for forwarding switching data; and the bearer tunnel is used for forwarding the data of the first bearer after the handover.
In the switching method of the embodiment of the invention, after receiving the command related to switching, the first base station of the first HaloB can select to connect with the second network node MME of the second HaloB; when switching between two HaloBs, only the currently used bearer can be switched, and the unused bearer can not be switched; an S1 tunnel switching message flow is used for building an X2 switching tunnel, so that the need of processing a switching list when X2 switching is carried out between a first base station and a second base station and the second MME information carrying a second HaloB when switching can be reduced; the time delay of creation and forwarding of the transmission path of the second HaloB based on redundancy of the indirect tunnel inside the second HaloB when the S1 tunnel is switched is reduced.
Optionally, the tunnel endpoint information includes a tunnel endpoint identification and an IP address.
Here, the number of tunnel endpoint identifiers is the same as the number of handover tunnels and bearer tunnels, and one tunnel endpoint identifier corresponds to one handover tunnel or bearer tunnel.
Optionally, the first bearer is all or part of a bearer of the first terminal, and the part of the bearer is a bearer of a current bearer service.
It should be noted that the second base station has the capability of judging different bearers.
Optionally, the handover request message further carries first security information;
wherein the first security information is security information of a second base station of the second HaloB.
Here, the security information includes a key of an air interface of the second base station of the second HaloB.
Optionally, the method further comprises:
generating second safety information according to the first safety information.
Optionally, the handover request message further carries second MME information of the second HaloB;
the sending, to the second HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the second HaloB, including:
A first base station of a first HaloB sends a switching request response message to a second base station of the second HaloB, and a switching tunnel between the first base station and the second base station of the second HaloB is established, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
and the first base station of the first HaloB sends a path switching request message to the second MME, wherein the path switching request message carries the indication information of the first bearer and the tunnel endpoint information of the bearer tunnel at the target base station so as to establish the bearer tunnel between the first base station and the second SGW of the second HaloB.
Optionally, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
The terminal UE moves in different sectors of the same base station eNB, such as intra-cell handover, the accessed eNB is unchanged, at least is the eNB with the same ID, and the eNB is called a mobility anchor point in the scene; the base station switches between different base stations under the jurisdiction of the same network node MME, so that the accessed base station changes, but the MME accessing the service does not change, so in this scenario, the MME is a mobility anchor point.
The public data gateway PGW is a functional entity for allocating an IP address to a terminal, and is also a session anchor during the terminal's online period. When the terminal is switched between different base stations and MME, the session anchor point is kept unchanged, otherwise, the service is interrupted. The serving gateway SGW and the packet data network gateway PGW may be set as one entity. In the HaloB application scenario, the serving gateway SGW and the packet data network gateway PGW are collectively referred to as SGW, and there is one SGW in each HaloB to provide a session anchor for the UE under the present HaloB.
The handover includes an X2-based handover and an S1-based handover:
the X2 switching means that a direct X2 interface exists between two eNBs, and data during switching can be forwarded to the other party through the X2 interface, and meanwhile, the two eNBs are required to belong to the same MME jurisdiction, namely, the two eNBs are connected with the same MME;
the S1 handover refers to that the UE has no direct connection of an X2 interface between two enbs where handover occurs, and needs to forward control signaling by the MME through the S1 interface between the enbs and the MME, and simultaneously establish an indirect handover forwarding tunnel to forward handover data to the target eNB.
The EPS bearer (evolved packet system includes terminal UE, long term evolution LTE and 4G core network EPC) of the evolved packet system in mobile communication includes a bearer DRB of a radio side, that is, a data bearer between the terminal and a base station, an S1 bearer between the eNB and the SGW, and an S5/S8 bearer between the SGW and the PGW. The radio side bearer and the S1 bearer are collectively called an E-RAB bearer. The bearers in the EPS bearer are in one-to-one correspondence. The establishment of the S1 bearer and the S5/S8 bearer is based on a GTP-U tunnel protocol, which comprises the steps of creating end point numbers at two ends of the bearer, combining IP addresses of the end points, sending the end points to an opposite end as a tunnel addressing mechanism, wherein the GTP-U refers to a group of high-level protocols based on IP and is used for transmitting S1 and X2 user plane data. The basis for tunnel establishment is therefore that the end points of the tunnel are aware of the end point identification TEID and IP address for the end point.
In an embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB selects the first base station of the first HaloB according to the switchable HaloB equipment list configured by the OMC to perform X2 switching. And sending a switching request message to the first base station, wherein the switching request message also carries information of a mobility anchor MME, which can be address information of the MME, ID information or domain name information of the MME, and the like, so that the first base station can find the anchor MME. This anchor MME is the second MME in the second HaloB device. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the switching request message sent by the second base station may only include the information of bearer 2 to be switched, and other bearer information may not be carried; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
The first base station receives the switching request message, generates new security information according to the security information of the second base station carried in the message, knows the address of the second SGW of the second HaloB of the uplink path according to the received bearing information, and simultaneously distributes at least one new wireless bearing ID. And simultaneously generating endpoint identifiers and IP addresses of the X2 tunnel and the S1 tunnel. The number of the X2 tunnel end point identifiers is the same as the bearing number, and the number of the S1 tunnel end point identifiers is the same as the bearing number.
The first base station sends a switching request response message to the second base station, and carries related information of corresponding bearing and endpoint identification of the X2 tunnel, and then an X2 switching tunnel between the first base station and the second base station is established.
The first base station acquires an address of a second MME according to the information of the second MME in the switching request message, sends a path switching request message to the second MME, and simultaneously carries information of a bearer to be switched, wherein the information comprises an endpoint identifier of an S1 tunnel, the endpoint identifier is sent to a second SGW through the second MME, and an S1 bearer tunnel between the first base station and the second SGW is established, so that the second SGW can switch a downlink data path to the first base station.
After the handover is completed, the first base station instructs the second base station to release the relevant information of the terminal.
Optionally, the sending the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station to the second HaloB, and establishing the handover tunnel and the bearer tunnel with the second HaloB, includes:
a first base station of a first HaloB sending a handover request response message to a second MME of the second HaloB, establishing a handover tunnel from the second base station of the second HaloB, reaching the first base station via the second MME, and establishing a bearer tunnel between the first base station and a second SGW of the second HaloB;
the switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
Optionally, the handover tunnel is an S1 tunnel, and the bearer tunnel is an S1 tunnel.
In another embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB sends a switching request message to the second MME of the second HaloB, and the second MME selects the first base station of the first HaloB according to the switchable HaloB equipment list configured by the OMC to switch the tunnel with S1. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the second base station may only include the information of bearer 2 to be switched when sending the switching request message, and may not be carried otherwise; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
After receiving the handover request message, the first base station generates new security information according to the security information carried in the message, and knows the address of the second SGW of the second HaloB of the uplink path according to the received bearer information, and at least one new radio bearer ID is allocated at the same time. And simultaneously generating the endpoint identifiers and the IP addresses of the S1 switching indirect tunnel and the S1 tunnel. The number of S1 tunnels and S1 tunnel end point identifications is the same as the bearing number.
The first base station sends a switching request response message to the second MME, and the second MME carries related information of corresponding bearing and the endpoint identification of the tunnel, and then initiates a command for creating an indirect tunnel and creating the switched bearing tunnel according to the endpoint identification. Creating a handover indirect tunnel from the second base station, via the second SGW, to the first base station, and creating a bearer tunnel between the first base station and the second SGW, i.e. creating an S1 handover indirect tunnel comprising an S1 handover tunnel between the second base station and the second MME and an S1 handover tunnel between the second SGW and the first base station, and creating an S1 bearer tunnel between the first base station and the second SGW.
After the handover is completed, the second MME instructs the second eNB to release the relevant information of the current terminal.
Optionally, the sending, to the second HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the second HaloB, further includes:
the method comprises the steps that a first base station of a first HaloB sends a switching request response message to a second MME of a second HaloB, a switching tunnel between the first base station and the second base station of the second HaloB is established, and a bearing tunnel between the first base station and a second SGW of the second HaloB is established, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at a target base station.
Optionally, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
In a further embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB sends a switching request message to the second MME of the second HaloB, and the second MME selects the first base station of the first HaloB to switch according to the switchable HaloB equipment list configured by the OMC. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the second base station may only include the information of bearer 2 to be switched when sending the switching request message, and may not be carried otherwise; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
After receiving the switching request message, the first base station generates new security information according to the security information carried in the message, and knows the address of the second SGW of the second HaloB of the uplink path according to the received bearing information, and at least one new wireless bearing ID is allocated at the same time, meanwhile, endpoint identifiers and IP addresses of X2 and S1 tunnels are generated, the number of the endpoint identifiers of the X2 tunnels is the same as the bearing number, and the number of the endpoint identifiers of the S1 tunnels is the same as the bearing number.
The first base station sends a switching request response message to the second MME, and carries related information of corresponding bearing and endpoint identification of the tunnel.
The second MME sends a switching command to the second base station, and carries information for creating an X2 tunnel and an instruction for creating the X2 tunnel, and the instruction is used for creating the X2 switching tunnel between the second base station and the first base station to forward switching data.
Meanwhile, the second MME simultaneously sends a command to the second SGW, instructs the second SGW to modify the bearing tunnel information of the current terminal, namely, the tunnel endpoint identifier distributed by the first base station replaces the tunnel endpoint identifier of the first base station, and creates an S1 bearing tunnel between the first base station and the second SGW.
After the switching is finished, the second MME instructs the second base station to release the relevant information of the current terminal.
As shown in fig. 2, the embodiment of the present invention further provides a handover method, which is applied to the second HaloB, and includes:
step 21, the second base station of the second HaloB sends a handover request message for the first terminal to the first base station of the first HaloB, wherein the handover request message carries indication information of the first bearer;
step 22, receiving a first bearer allocation new first radio bearer identifier sent by a first base station of a first HaloB and tunnel endpoint information of a handover tunnel and a bearer tunnel corresponding to the first radio bearer identifier one to one, wherein the handover tunnel is used for forwarding handover data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used for forwarding new data on the first bearer;
step 23, receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station, which are sent by the first base station of the first HaloB, and establishing the switching tunnel and the bearer tunnel between the switching tunnel and the first HaloB.
The switching tunnel is used for forwarding switching data; and the bearer tunnel is used for forwarding the data of the first bearer after the handover.
In the switching method of the embodiment of the invention, after receiving the command related to switching, the first base station of the first HaloB can select the second MME connected with the second HaloB; when switching between two HaloBs, only the currently used bearer can be switched, and the unused bearer can not be switched; an S1 tunnel switching message flow is used for building an X2 switching tunnel, so that the need of processing a switching list when X2 switching is carried out between a first base station and a second base station and the second MME information carrying a second HaloB when switching can be reduced; the time delay of creation and forwarding of the transmission path of the second HaloB based on redundancy of the indirect tunnel inside the second HaloB when the S1 tunnel is switched is reduced.
Here, the number of tunnel endpoint identifiers is the same as the number of handover tunnels and bearer tunnels, and one tunnel endpoint identifier corresponds to one handover tunnel or bearer tunnel.
Optionally, the tunnel endpoint information includes a tunnel endpoint identifier and an IP address;
the first bearer is all or part of the first terminal, and the part of the first bearer is the bearer of the current bearer service.
Optionally, the handover request message further carries first security information;
the first security information is security information of the second base station.
Here, the security information includes a key of an air interface of the second base station of the second HaloB.
Optionally, the handover request message further carries second MME information of a second HaloB;
receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station, which are sent by the first HaloB, and establishing the switching tunnel and the bearer tunnel between the switching tunnel and the bearer tunnel with the first HaloB, wherein the method comprises the following steps:
receiving a switching request response message sent by a first base station of the first HaloB, and establishing a switching tunnel between a second base station of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
the second MME receives a path switching request message sent by the first base station, wherein the path switching request message carries indication information of the first bearer and tunnel endpoint information of a bearer tunnel at a target base station so as to establish the bearer tunnel between a second SGW of the second HaloB and the first base station.
Optionally, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
In an embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB selects the first base station of the first HaloB according to the switchable HaloB equipment list configured by the OMC to perform X2 switching. And sending a switching request message to the first base station, wherein the switching request message also carries information of a mobility anchor MME, which can be address information of the MME, ID information or domain name information of the MME, and the like, so that the first base station can find the anchor MME. This anchor MME is the second MME in the second HaloB device. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the switching request message sent by the second base station may only include the information of bearer 2 to be switched, and other bearer information may not be carried; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
The first base station receives the switching request message, generates new security information according to the security information of the second base station carried in the message, knows the address of the second SGW of the second HaloB of the uplink path according to the received bearing information, and simultaneously distributes at least one new wireless bearing ID. And simultaneously generating endpoint identifiers and IP addresses of the X2 tunnel and the S1 tunnel. The number of the X2 tunnel end point identifiers is the same as the bearing number, and the number of the S1 tunnel end point identifiers is the same as the bearing number.
The first base station sends a switching request response message to the second base station, and carries related information of corresponding bearing and endpoint identification of the X2 tunnel, and then an X2 switching tunnel between the first base station and the second base station is established.
The first base station acquires an address of a second MME according to the information of the second MME in the switching request message, sends a path switching request message to the second MME, and simultaneously carries information of a bearer to be switched, wherein the information comprises an endpoint identifier of an S1 tunnel, the endpoint identifier is sent to a second SGW through the second MME, and an S1 bearer tunnel between the first base station and the second SGW is established, so that the second SGW can switch a downlink data path to the first base station.
After the handover is completed, the first base station instructs the second base station to release the relevant information of the terminal.
Optionally, the establishing the switching tunnel and the bearer tunnel between the first HaloB and the first base station receiving the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the target base station, which are sent by the first base station of the first HaloB includes:
a second MME of the second HaloB receives a switching request response message sent by a first base station of the first HaloB, establishes a switching tunnel reaching the first base station from the second base station of the second HaloB through the second MME, and establishes a bearing tunnel between a second SGW of the second HaloB and the first base station;
the switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
Optionally, the handover tunnel is an S1 tunnel, and the bearer tunnel is an S1 tunnel.
In another embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB sends a switching request message to the second MME of the second HaloB, and the second MME selects the first base station of the first HaloB according to the switchable HaloB equipment list configured by the OMC to switch the tunnel with S1. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the second base station may only include the information of bearer 2 to be switched when sending the switching request message, and may not be carried otherwise; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
After receiving the handover request message, the first base station generates new security information according to the security information carried in the message, and knows the address of the second SGW of the second HaloB of the uplink path according to the received bearer information, and at least one new radio bearer ID is allocated at the same time. And simultaneously generating the endpoint identifiers and the IP addresses of the S1 switching indirect tunnel and the S1 tunnel. The number of S1 tunnels and S1 tunnel end point identifications is the same as the bearing number.
The first base station sends a switching request response message to the second MME, and the second MME carries related information of corresponding bearing and the endpoint identification of the tunnel, and then initiates a command for creating an indirect tunnel and creating the switched bearing tunnel according to the endpoint identification. Creating a handover indirect tunnel from the second base station, via the second SGW, to the first base station, and creating a bearer tunnel between the first base station and the second SGW, i.e. creating an S1 handover indirect tunnel comprising an S1 handover tunnel between the second base station and the second MME and an S1 handover tunnel between the second SGW and the first base station, and creating an S1 bearer tunnel between the first base station and the second SGW.
After the handover is completed, the second MME instructs the second eNB to release the relevant information of the current terminal.
Optionally, the method further includes the steps of establishing a switching tunnel and a bearer tunnel between the switching tunnel and the first HaloB, where the switching tunnel and the bearer tunnel are located at a target base station, and the switching tunnel and the bearer tunnel are sent by the first base station receiving the first HaloB, and the method further includes:
the second MME of the second HaloB receives a switching request response message sent by the first base station of the first HaloB, establishes a switching tunnel between the second base station of the second HaloB and the first base station, and establishes a bearing tunnel between the second SGW of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at the first base station.
Optionally, the switching tunnel is an X2 tunnel, and the bearer tunnel is an S1 tunnel.
In a further embodiment of the present invention, the operation maintenance center OMC is a unified management system, and configures a neighbor HaloB device list capable of switching for all HaloB devices;
when the terminal is switched, the second base station of the second HaloB sends a switching request message to the second MME of the second HaloB, and the second MME selects the first base station of the first HaloB to switch according to the switchable HaloB equipment list configured by the OMC. It should be noted that, the bearer information to be switched carried in the switching request message may not be all bearer information of the current terminal, but only the bearer information of the current bearer service may be sent, for example, the current terminal has three bearers, namely, bearer 1, bearer 2 and bearer 3, bearer 1 is a default bearer, bearers 2 and 3 are special bearers, at this time, the service is in progress on bearer 2, and the second base station may only include the information of bearer 2 to be switched when sending the switching request message, and may not be carried otherwise; the information of the bearer 2 and the default bearer 1 may be included to switch, or all of the 3 bearers may be carried to switch. While the second base station needs to have the ability to distinguish between different bearers.
After receiving the switching request message, the first base station generates new security information according to the security information carried in the message, and knows the address of the second SGW of the second HaloB of the uplink path according to the received bearing information, and at least one new wireless bearing ID is allocated at the same time, meanwhile, endpoint identifiers and IP addresses of X2 and S1 tunnels are generated, the number of the endpoint identifiers of the X2 tunnels is the same as the bearing number, and the number of the endpoint identifiers of the S1 tunnels is the same as the bearing number.
The first base station sends a switching request response message to the second MME, and carries related information of corresponding bearing and endpoint identification of the tunnel.
The second MME sends a switching command to the second base station, and carries information for creating an X2 tunnel and an instruction for creating the X2 tunnel, and the instruction is used for creating the X2 switching tunnel between the second base station and the first base station to forward switching data.
Meanwhile, the second MME simultaneously sends a command to the second SGW, instructs the second SGW to modify the bearing tunnel information of the current terminal, namely, the tunnel endpoint identifier distributed by the first base station replaces the tunnel endpoint identifier of the first base station, and creates an S1 bearing tunnel between the first base station and the second SGW.
After the switching is finished, the second MME instructs the second base station to release the relevant information of the current terminal.
As shown in fig. 3, an embodiment of the present invention further provides a switching device, which is applied to a first HaloB, and includes:
a first receiving module 31, configured to receive a handover request message for a first terminal sent by a second HaloB, where the handover request message carries indication information of a first bearer;
an allocation generating module 32, configured to determine, according to the first bearer, an address of a second SGW of the second HaloB, allocate a new first radio bearer identifier to the first bearer, and generate a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used to forward new data on the first bearer;
a first sending module 33, configured to send, to the second HaloB, indication information of the first bearer, tunnel endpoint information of a handover tunnel and a bearer tunnel at a target base station, to a first base station of the first HaloB, and establish the handover tunnel and the bearer tunnel with the second HaloB;
The second sending module 64 is configured to receive the handover data by the first base station of the first HaloB through the handover tunnel and send the handover data to the first terminal, and receive the incoming data by the bearer tunnel and send the incoming data to the first terminal.
As shown in fig. 4, an embodiment of the present invention further provides a switching device, which is applied to a second HaloB, and includes:
a third sending module 41, configured to send, to a second base station of the second HaloB, a handover request message for the first terminal to a first base station of the first HaloB, where the handover request message carries indication information of the first bearer;
a second receiving module 42, configured to receive a first bearer allocation new first radio bearer identifier sent by a first base station of a first HaloB, and tunnel endpoint information of a handover tunnel and a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used to forward incoming data on the first bearer;
and a third receiving module 43, configured to receive indication information of the first bearer, tunnel endpoint information of a handover tunnel and a bearer tunnel at a target base station, which are sent by a first base station of a first HaloB, and establish the handover tunnel and the bearer tunnel with the first HaloB. Endpoint identification
The embodiment of the invention also provides a control device which comprises a memory, a processor and a program which is stored in the memory and can run on the processor; the processor implements the handover method as described above when executing the program.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the handover method as described above.
In the switching method of the embodiment of the invention, after receiving the command related to switching, the first base station of the first HaloB can select the second MME connected with the second HaloB; when switching between two HaloBs, only the currently used bearer can be switched, and the unused bearer can not be switched; an S1 tunnel switching message flow is used for building an X2 switching tunnel, so that the need of processing a switching list when X2 switching is carried out between a first base station and a second base station and the second MME information carrying a second HaloB when switching can be reduced; the time delay of creation and forwarding of the transmission path of the second HaloB based on redundancy of the indirect tunnel inside the second HaloB when the S1 tunnel is switched is reduced.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.

Claims (24)

1. A handover method applied to a first HaloB, comprising:
a first base station of a first HaloB receives a switching request message for a first terminal sent by a second HaloB, wherein the switching request message carries indication information of a first bearer;
a first base station of a first HaloB determines an address of a second SGW of the second HaloB according to the first bearer, allocates a new first radio bearer identifier to the first bearer, and generates a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, wherein the handover tunnel is used for forwarding handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used for forwarding new data on the first bearer;
a first base station of a first HaloB sends indication information of the first bearer, tunnel endpoint information of a switching tunnel and a bearer tunnel at a target base station to the second HaloB, and establishes the switching tunnel and the bearer tunnel between the first base station and the second HaloB;
A first base station of a first HaloB receives the switching data through the switching tunnel and sends the switching data to the first terminal, and receives the new data through the bearing tunnel and sends the new data to the first terminal;
the service gateway SGW and the packet data network gateway PGW are both set as one entity, and are collectively called SGW, and provide a session anchor point for UE under a base station with the capability of aggregating a light core network, and the session anchor point is kept unchanged when switching between different base stations and MME;
the HaloB device is a base station that aggregates the capabilities of a lightweight core network, and is a base station that localizes the core network capabilities with the base station capabilities.
2. The handover method of claim 1, wherein the tunnel endpoint information comprises a tunnel endpoint identification and an IP address.
3. The handover method according to claim 1, wherein the first bearer is all or part of a bearer of the first terminal, and the part of the bearer is a bearer of a current bearer service.
4. The handover method according to claim 1, wherein the handover request message further carries first security information;
Wherein the first security information is security information of a second base station of the second HaloB.
5. The method of switching according to claim 4, further comprising:
generating second safety information according to the first safety information.
6. The handover method according to claim 1, wherein the handover request message further carries second MME information of the second HaloB;
the sending, to the second HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the second HaloB, including:
a first base station of a first HaloB sends a switching request response message to a second base station of the second HaloB, and a switching tunnel between the first base station and the second base station of the second HaloB is established, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
and the first base station of the first HaloB sends a path switching request message to the second MME, wherein the path switching request message carries the indication information of the first bearer and the tunnel endpoint information of the bearer tunnel at the target base station so as to establish the bearer tunnel between the first base station and the second SGW of the second HaloB.
7. The handover method according to claim 6, wherein the handover tunnel is an X2 tunnel and the bearer tunnel is an S1 tunnel.
8. The handover method according to claim 1, wherein the sending the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station to the second HaloB, establishes the handover tunnel and the bearer tunnel with the second HaloB, includes:
a first base station of a first HaloB sending a handover request response message to a second MME of the second HaloB, establishing a handover tunnel from the second base station of the second HaloB, reaching the first base station via the second MME, and establishing a bearer tunnel between the first base station and a second SGW of the second HaloB;
the switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
9. The handover method according to claim 8, wherein the handover tunnel is an S1 tunnel and the bearer tunnel is an S1 tunnel.
10. The handover method according to claim 1, wherein the sending the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station to the second HaloB, establishes the handover tunnel and the bearer tunnel with the second HaloB, further comprises:
The method comprises the steps that a first base station of a first HaloB sends a switching request response message to a second MME of a second HaloB, a switching tunnel between the first base station and the second base station of the second HaloB is established, and a bearing tunnel between the first base station and a second SGW of the second HaloB is established, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at a target base station.
11. The handover method according to claim 10, wherein the handover tunnel is an X2 tunnel and the bearer tunnel is an S1 tunnel.
12. A handover method applied to a second HaloB, comprising:
a second base station of the second HaloB sends a switching request message for the first terminal to a first base station of the first HaloB, wherein the switching request message carries indication information of a first bearer;
receiving a first bearer allocation new first wireless bearer identifier sent by a first base station of a first HaloB and tunnel endpoint information of a switching tunnel and a bearer tunnel corresponding to the first wireless bearer identifier one to one, wherein the switching tunnel is used for forwarding switching data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used for forwarding new data on the first bearer;
Receiving indication information of the first bearer, tunnel endpoint information of a switching tunnel and a bearing tunnel at a target base station, which are sent by a first base station of a first HaloB, and establishing the switching tunnel and the bearing tunnel between the switching tunnel and the first HaloB;
the service gateway SGW and the packet data network gateway PGW are both set as one entity, and are collectively called SGW, and provide a session anchor point for UE under a base station with the capability of aggregating a light core network, and the session anchor point is kept unchanged when switching between different base stations and MME;
the HaloB device is a base station that aggregates the capabilities of a lightweight core network, and is a base station that localizes the core network capabilities with the base station capabilities.
13. The handover method of claim 12, wherein the tunnel endpoint information includes a tunnel endpoint identification and an IP address;
the first bearer is all or part of the first terminal, and the part of the first bearer is the bearer of the current bearer service.
14. The handover method according to claim 12, wherein the handover request message further carries first security information;
the first security information is security information of the second base station.
15. The handover method according to claim 12, wherein the handover request message further carries second MME information of a second HaloB;
receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station, which are sent by the first HaloB, and establishing the switching tunnel and the bearer tunnel between the switching tunnel and the bearer tunnel with the first HaloB, wherein the method comprises the following steps:
receiving a switching request response message sent by a first base station of the first HaloB, and establishing a switching tunnel between a second base station of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearer and tunnel endpoint information of the switching tunnel at a target base station; the method comprises the steps of,
the second MME receives a path switching request message sent by the first base station, wherein the path switching request message carries indication information of the first bearer and tunnel endpoint information of a bearer tunnel at a target base station so as to establish the bearer tunnel between a second SGW of the second HaloB and the first base station.
16. The handover method according to claim 15, wherein the handover tunnel is an X2 tunnel and the bearer tunnel is an S1 tunnel.
17. The handover method according to claim 12, wherein the receiving, by the first base station of the first HaloB, the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, and establishing the handover tunnel and the bearer tunnel with the first HaloB, includes:
a second MME of the second HaloB receives a switching request response message sent by a first base station of the first HaloB, establishes a switching tunnel reaching the first base station from the second base station of the second HaloB through the second MME, and establishes a bearing tunnel between a second SGW of the second HaloB and the first base station;
the switching request response message carries the indication information of the first bearer, the switching tunnel and the tunnel endpoint information of the bearer tunnel at the first base station.
18. The handover method according to claim 17, wherein the handover tunnel is an S1 tunnel and the bearer tunnel is an S1 tunnel.
19. The handover method according to claim 12, wherein the indication information of the first bearer, the tunnel endpoint information of the handover tunnel and the bearer tunnel at the target base station, which are sent by the first base station receiving the first HaloB, establish the handover tunnel and the bearer tunnel with the first HaloB, further comprises:
The second MME of the second HaloB receives a switching request response message sent by the first base station of the first HaloB, establishes a switching tunnel between the second base station of the second HaloB and the first base station, and establishes a bearing tunnel between the second SGW of the second HaloB and the first base station, wherein the switching request response message carries indication information of the first bearing, the switching tunnel and tunnel endpoint information of the bearing tunnel at the first base station.
20. The handover method according to claim 19, wherein the handover tunnel is an X2 tunnel and the bearer tunnel is an S1 tunnel.
21. A switching device for use with a first HaloB, comprising:
the first receiving module is used for receiving a switching request message for the first terminal sent by the second HaloB, wherein the switching request message carries indication information of a first bearer;
an allocation generating module, configured to determine, according to the first bearer, an address of a second SGW of the second HaloB, allocate a new first radio bearer identifier to the first bearer, and generate a handover tunnel and tunnel endpoint information of a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between the second SGW and the first base station and is used to forward new data on the first bearer;
The first sending module is used for sending the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearer tunnel at the target base station to the second HaloB by the first base station of the first HaloB, and establishing the switching tunnel and the bearer tunnel between the first base station and the second HaloB;
the second sending module is used for receiving the switching data by the first base station of the first HaloB through the switching tunnel and sending the switching data to the first terminal, and receiving the new data by the bearing tunnel and sending the new data to the first terminal;
the service gateway SGW and the packet data network gateway PGW are both set as one entity, and are collectively called SGW, and provide a session anchor point for UE under a base station with the capability of aggregating a light core network, and the session anchor point is kept unchanged when switching between different base stations and MME;
the HaloB device is a base station that aggregates the capabilities of a lightweight core network, and is a base station that localizes the core network capabilities with the base station capabilities.
22. A switching device for use with a second HaloB, comprising:
the third sending module is used for sending a switching request message aiming at the first terminal to the second base station of the second HaloB, wherein the switching request message carries indication information of the first bearer;
A second receiving module, configured to receive a first bearer allocation new first radio bearer identifier sent by a first base station of a first HaloB, and tunnel endpoint information of a handover tunnel and a bearer tunnel corresponding to the first radio bearer identifier one to one, where the handover tunnel is used to forward handover data cached by the first base station, and the bearer tunnel is established between a second SGW of the second HaloB and the first base station and is used to forward incoming data on the first bearer;
the third receiving module is used for receiving the indication information of the first bearer, the tunnel endpoint information of the switching tunnel and the bearing tunnel at the target base station, which are sent by the first base station of the first HaloB, and establishing the switching tunnel and the bearing tunnel between the switching tunnel and the bearing tunnel and the first HaloB;
the service gateway SGW and the packet data network gateway PGW are both set as one entity, and are collectively called SGW, and provide a session anchor point for UE under a base station with the capability of aggregating a light core network, and the session anchor point is kept unchanged when switching between different base stations and MME;
the HaloB device is a base station that aggregates the capabilities of a lightweight core network, and is a base station that localizes the core network capabilities with the base station capabilities.
23. A switching device comprising a memory, a processor, and a program stored on the memory and executable on the processor; the switching method according to any one of claims 1 to 20, characterized in that the processor implements the switching method when executing the program.
24. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the handover method according to any of claims 1 to 20.
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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998479A (en) * 2009-08-11 2011-03-30 中兴通讯股份有限公司 Switching optimization method and system
CN102056145A (en) * 2009-10-28 2011-05-11 中兴通讯股份有限公司 Method and system for releasing tunnel connection in communication system supporting local IP access
WO2012136374A2 (en) * 2011-04-05 2012-10-11 Panasonic Corporation Improved short message transmission and handover procedures
WO2015188357A1 (en) * 2014-06-12 2015-12-17 华为技术有限公司 Bearer switching control device and control method
CN105376811A (en) * 2014-08-25 2016-03-02 中国电信股份有限公司 Method of realizing switching in software mobile network architecture and system
CN105430704A (en) * 2015-12-09 2016-03-23 北京全路通信信号研究设计院集团有限公司 Seamless switching method and system for vehicle-mounted terminal
CN105792292A (en) * 2014-12-26 2016-07-20 中兴通讯股份有限公司 Node B handover method and system and relevant device
CN106034338A (en) * 2015-03-09 2016-10-19 北京佰才邦技术有限公司 Switching method and switching device for mobile communication base stations
WO2018023544A1 (en) * 2016-08-04 2018-02-08 华为技术有限公司 Communication method, user equipment, base station, control plane network element, and communication system
WO2018058529A1 (en) * 2016-09-30 2018-04-05 华为技术有限公司 Method and device for establishing bearer
CN109479334A (en) * 2016-07-26 2019-03-15 华为技术有限公司 A kind of method, relevant apparatus and system that carrying is established
CN109587687A (en) * 2018-12-04 2019-04-05 西安佰才邦网络技术有限公司 Base station equipment and its network-building method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104641682B (en) * 2011-10-28 2019-01-15 黑莓有限公司 The method and apparatus of carrying are handled during circuit switched fallback operation
US9882950B2 (en) * 2012-06-13 2018-01-30 All Purpose Networks LLC Methods and systems of an all purpose broadband network
US9560679B2 (en) * 2013-05-24 2017-01-31 Telefonaktiebolaget Lm Ericsson (Publ) Method, apparatus, system, computer program and computer program products for providing a PLMN identifier to a node of a RAN

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998479A (en) * 2009-08-11 2011-03-30 中兴通讯股份有限公司 Switching optimization method and system
CN102056145A (en) * 2009-10-28 2011-05-11 中兴通讯股份有限公司 Method and system for releasing tunnel connection in communication system supporting local IP access
WO2012136374A2 (en) * 2011-04-05 2012-10-11 Panasonic Corporation Improved short message transmission and handover procedures
WO2015188357A1 (en) * 2014-06-12 2015-12-17 华为技术有限公司 Bearer switching control device and control method
CN105376811A (en) * 2014-08-25 2016-03-02 中国电信股份有限公司 Method of realizing switching in software mobile network architecture and system
CN105792292A (en) * 2014-12-26 2016-07-20 中兴通讯股份有限公司 Node B handover method and system and relevant device
CN106034338A (en) * 2015-03-09 2016-10-19 北京佰才邦技术有限公司 Switching method and switching device for mobile communication base stations
CN105430704A (en) * 2015-12-09 2016-03-23 北京全路通信信号研究设计院集团有限公司 Seamless switching method and system for vehicle-mounted terminal
CN109479334A (en) * 2016-07-26 2019-03-15 华为技术有限公司 A kind of method, relevant apparatus and system that carrying is established
WO2018023544A1 (en) * 2016-08-04 2018-02-08 华为技术有限公司 Communication method, user equipment, base station, control plane network element, and communication system
CN108702656A (en) * 2016-08-04 2018-10-23 华为技术有限公司 Communication means, user equipment, base station, control plane network element and communication system
WO2018058529A1 (en) * 2016-09-30 2018-04-05 华为技术有限公司 Method and device for establishing bearer
CN109587687A (en) * 2018-12-04 2019-04-05 西安佰才邦网络技术有限公司 Base station equipment and its network-building method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Huawei, Hisilcon. "RAB Setup information in the IRAT handover".《3GPP TSG-SA2 Meeting #118bis S2-170050》.2017,(TSGS2_118BIS_Spokane),全文. *
杨俊杰 ; 庞伟佳 ; 何林海 ; 陈励锋.5G网络及其关键技术研究.《中国无线电》.2020,全文. *

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