CN110662275B - Network selection method, base station and computer readable storage medium - Google Patents
Network selection method, base station and computer readable storage medium Download PDFInfo
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- CN110662275B CN110662275B CN201810693418.3A CN201810693418A CN110662275B CN 110662275 B CN110662275 B CN 110662275B CN 201810693418 A CN201810693418 A CN 201810693418A CN 110662275 B CN110662275 B CN 110662275B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The disclosure provides a network selection method, a base station and a computer readable storage medium, and relates to the field of mobile communication. The method comprises the following steps: a base station receives a wireless resource control message sent by a terminal, wherein a carrying terminal supports the capability information of a second mobile communication network; the base station judges whether the terminal can support the second mobile communication network or not according to the information; if so, the base station selects a second network slice corresponding to the second mobile communication network to provide service for the terminal; if not, the base station selects a first network slice corresponding to the first mobile communication network to provide service for the terminal; wherein the second mobile communication network is a next generation evolution network of the first mobile communication network. The base station can route the terminal to the corresponding network slice through simple judgment logic according to the capability information indicated by the terminal through the wireless resource control message, and can realize network selection at low cost under the condition that different network slice devices are mixed to form a resource pool.
Description
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a network selection method, a base station, and a computer-readable storage medium.
Background
The fifth generation mobile communication technology (5G for short) adopts a converged network to support the smooth evolution from the fourth generation mobile communication technology (4G for short) to the 5G, so as to realize better network experience.
If a resource pool is established by mixing the conventional MME (Mobility Management Entity) and the AMF (Core Access and Mobility Management Function)/MME fusion device, the 4G terminal selects a network to the conventional MME, and the 5G terminal selects a network to the AMF/MME fusion device.
In the related technologies of network selection, some require upgrading support of all network elements (including HSS (Home Subscriber Server), PCRF (Policy and Charging Rules Function), SGW (Serving Gate Way), and PGW (PDN Gate Way) of EPC (Evolved Packet Core), some increase signaling load of S1 interface due to the procedure of redirecting session to amaf/MME convergence equipment by using traditional MME, and some require planning private network identification. The related technologies have a relatively high cost for realizing network selection.
Disclosure of Invention
One technical problem to be solved by the present disclosure is how to implement network selection at a lower cost in the case that a resource pool is established by mixing a traditional MME and an AMF/MME fusion device.
According to an aspect of the present disclosure, a network selection method is provided, including:
a base station receives a radio resource control message sent by a terminal, wherein the radio resource control message carries the capability information of the terminal supporting a second mobile communication network;
the base station judges whether the terminal can support a second mobile communication network according to the capability information of the terminal carried by the radio resource control message;
if the terminal can support a second mobile communication network, the base station selects a corresponding second network slice of the second mobile communication network to provide service for the terminal;
if the terminal can not support a second mobile communication network, the base station selects a first network slice corresponding to a first mobile communication network to provide service for the terminal;
wherein the second mobile communication network is a next generation evolution network of the first mobile communication network.
Optionally, in case that the first mobile communication network is a fourth generation mobile communication network, the second mobile communication network is a fifth generation mobile communication network,
if the terminal can support a fifth generation mobile communication network, the base station selects a mobility management entity and a convergence device with access and mobility management functions to provide service for the terminal;
and if the terminal cannot support the fifth generation mobile communication network, the base station selects a mobility management entity to provide service for the terminal.
Optionally, the base station queries the weight of each fusion device, and selects a fusion device to provide service for the terminal according to the weight of each fusion device.
Optionally, the base station queries the weight of each mobility management entity, and selects a mobility management entity to provide a service for the terminal according to the weight of each mobility management entity.
Optionally, the base station queries the weight of each device in the second network slice, and selects a device from the second network slice according to the weight of each device in the second network slice to provide a service for the terminal.
Optionally, the base station queries weights of each device in the first network slice, and selects a device from the first network slice according to the weights of each device in the first network slice to provide a service for the terminal.
Optionally, the radio resource control message is a radio resource controlled connection setup complete message.
According to still another aspect of the present disclosure, a base station for network selection is provided, including:
a receiving module, configured to receive a radio resource control message sent by a terminal, where the radio resource control message carries capability information of the terminal supporting a second mobile communication network;
a capability judging module, configured to judge whether the terminal can support a second mobile communication network according to the capability information of the terminal carried in the radio resource control message;
the network selection module is used for selecting a second network slice corresponding to a second mobile communication network to provide service for the terminal if the terminal can support the second mobile communication network; if the terminal can not support the second mobile communication network, selecting a first network slice corresponding to the first mobile communication network to provide service for the terminal;
wherein the second mobile communication network is a next generation evolution network of the first mobile communication network.
Optionally, in a case that the first mobile communication network is a fourth generation mobile communication network and the second mobile communication network is a fifth generation mobile communication network, the network selection module is configured to:
if the terminal can support a fifth generation mobile communication network, selecting a mobility management entity and a convergence device with access and mobility management functions to provide service for the terminal;
and if the terminal cannot support the fifth generation mobile communication network, selecting a mobility management entity to provide service for the terminal.
Optionally, the network selection module is configured to:
if the terminal can support a fifth generation mobile communication network, inquiring the weight of each fusion device, and selecting the fusion device to provide service for the terminal according to the weight of each fusion device;
alternatively, the first and second electrodes may be,
and if the terminal can not support the fifth generation mobile communication network, inquiring the weight of each mobility management entity, and selecting the mobility management entity to provide service for the terminal according to the weight of each mobility management entity.
Optionally, the network selection module is configured to:
if the terminal can support a second mobile communication network, inquiring the weight of each device in a second network slice, and selecting a device from the second network slice according to the weight of each device in the second network slice to provide service for the terminal;
alternatively, the first and second electrodes may be,
and if the terminal can not support the second mobile communication network, inquiring the weight of each device in the first network slice, and selecting a device from the first network slice according to the weight of each device in the first network slice to provide service for the terminal.
According to still another aspect of the present disclosure, a base station for network selection is provided, including:
a memory; and
a processor coupled to the memory, the processor configured to perform any of the aforementioned network selection methods based on instructions stored in the memory.
According to yet another aspect of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which when executed by a processor implements any of the aforementioned network selection methods.
The base station can route the terminal to the corresponding network slice through simple judgment logic according to the capability information indicated by the terminal through the wireless resource control message, and can realize network selection at low cost under the condition that different network slice devices are mixed to form a resource pool.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a schematic flow chart of some embodiments of a network selection method according to the present disclosure.
Fig. 2 is a schematic flow chart of another embodiment of the network selection method of the present disclosure.
Fig. 3 is a schematic flow chart of another embodiment of the network selection method of the present disclosure.
Fig. 4 is a schematic structural diagram of some embodiments of a base station for network selection according to the present disclosure.
Fig. 5 is a schematic structural diagram of another embodiment of a base station for network selection according to the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
The descriptions of "first", "second", and the like in this disclosure are used only to distinguish different objects, and are not used to indicate the meaning of size, timing, and the like. For example, the first mobile communication network and the second mobile communication network refer to two different mobile communication networks.
For convenience of description, the present disclosure defines the second mobile communication network to be a next generation evolved network of the first mobile communication network. For example, the first mobile communication network is a fourth generation mobile communication network (i.e., a 4G network) and the second mobile communication network is a fifth generation mobile communication network (i.e., a 5G network), but is not limited to the illustrated example.
Fig. 1 is a schematic flow chart of some embodiments of a network selection method according to the present disclosure.
As shown in fig. 1, the method of this embodiment includes: 110 to 140.
In step 110, the base station receives a Radio Resource Control (RRC) message sent by the terminal, where the terminal carries capability information of the second mobile communication network.
The radio resource control message may be, for example, a radio resource controlled connection setup complete message.
In step 120, the base station determines whether the terminal can support the second mobile communication network according to the capability information of the terminal carried by the radio resource control message.
In step 130, if the terminal is capable of supporting the second mobile communication network, the base station selects a corresponding second network slice of the second mobile communication network to provide a service to the terminal.
In some embodiments, the base station queries the weight of each device in the second network slice, selects a device from the second network slice according to the weight of each device in the second network slice to provide a service for the terminal, and then accesses the terminal to the selected device to complete a subsequent access process.
Wherein the weight may represent a priority at which the device is selected. The weights may be set, for example, according to a load sharing principle. For example, according to the capability and load condition of the devices, the weight of the devices that can currently accept more services may be set to be larger, so that the devices are preferentially selected.
In step 140, if the terminal cannot support the second mobile communication network, the base station selects a corresponding first network slice of the first mobile communication network to provide a service for the terminal.
In some embodiments, the base station queries the weight of each device in the first network slice, selects a device from the first network slice according to the weight of each device in the first network slice to provide service for the terminal, and then accesses the terminal to the selected device to complete a subsequent access process.
Wherein the weight may represent a priority at which the device is selected. The weights may be set, for example, according to a load sharing principle. For example, according to the capability and load condition of the devices, the weight of the devices that can currently accept more services may be set to be larger, so that the devices are preferentially selected.
The base station can route the terminal to a corresponding network slice through simple judgment logic according to the capability information indicated by the terminal through the radio resource control message, network selection can be realized at low cost under the condition that resource pools are formed by mixing different network slice devices, EPC whole network coordination upgrading is not needed, S1 interface signaling load is not increased, and a special network identifier is not needed to be planned.
Fig. 2 is a schematic flow chart of another embodiment of the network selection method of the present disclosure. In this embodiment, the first mobile communication network is, for example, a fourth generation mobile communication network, and the second mobile communication network is, for example, a fifth generation mobile communication network.
As shown in fig. 2, the method of this embodiment includes: step 210 to 280.
In step 210, the base station receives a radio resource control message sent by the terminal, wherein the capability information (set to 5G-capability) of whether the mobile terminal supports the fifth generation mobile communication network is carried.
In step 220, the base station determines whether the terminal can support a fifth generation mobile communication network according to the capability information of the terminal carried by the radio resource control message.
In step 230, if the terminal is capable of supporting the fifth generation mobile communication network, the base station selects a mobility management entity and a convergence device of access and mobility management functions to provide services for the terminal, i.e., selects a 4G/5G convergence network slice to provide services for the terminal.
In step 240, the base station may further query the weight of each fusion device in the resource pool, and select a fusion device to provide a service for the terminal according to the weight of each fusion device.
Wherein the weight may represent a priority at which the device is selected. The weights may be set, for example, according to a load sharing principle. For example, according to the capability and load condition of the devices, the weight of the devices that can currently accept more services may be set to be larger, so that the devices are preferentially selected.
In step 250, the base station accesses the terminal to the selected convergence device to complete the subsequent access process.
In step 260, if the terminal cannot support the fifth generation mobile communication network, the base station selects a conventional mobility management entity (i.e., 4G MME) to serve the terminal, i.e., selects a conventional 4G network slice to serve the terminal.
In step 270, the base station may further query the weight of each mobility management entity in the resource pool, and select a mobility management entity to provide a service for the terminal according to the weight of each mobility management entity.
Wherein the weight may represent a priority at which the device is selected. The weights may be set, for example, according to a load sharing principle. For example, according to the capability and load condition of the devices, the weight of the devices that can currently accept more services may be set to be larger, so that the devices are preferentially selected.
In step 280, the base station accesses the terminal to the selected mobility management entity to complete the subsequent access procedure.
The base station can route the terminal to a corresponding 4G/5G fusion network slice or a traditional 4G network slice through simple judgment logic according to the capability information indicated by the terminal through the wireless resource control message, network selection can be realized at a low cost under the condition that resource pools are formed by mixing different network slice devices, EPC whole network coordination upgrading is not needed, S1 interface signaling load is not increased, and a private network identifier is not needed to be planned.
Fig. 3 is a schematic flow chart of another embodiment of the network selection method of the present disclosure. In this embodiment, the first mobile communication network is, for example, a fourth generation mobile communication network, and the second mobile communication network is, for example, a fifth generation mobile communication network.
As shown in fig. 3, the method of this embodiment includes: 310 to 380.
In step 310, the terminal performs cell selection after being powered on, receives a system message, and starts attachment. The terminal sends a Random Access Preamble (RA Preamble) to the network.
In step 320, the base station receives the Random Access request of the terminal and returns a Random Access Response (RA Response) to the terminal.
In step 330, the terminal transmits a radio resource control Connection Request (RRC Connection Request) to the base station.
In step 340, the base station returns a radio resource control Connection Setup (RRC Connection Setup) response to the terminal.
In step 350, the terminal transmits a radio resource control Connection Setup Complete (RRC Connection Setup Complete) message to the base station, wherein a 5G capability parameter value (5G-capability) of the terminal is carried, indicating whether the terminal supports capability information of a fifth generation mobile communication network.
In step 360, the base station determines whether the terminal can support the fifth generation mobile communication network according to the 5G capability parameter value of the terminal carried by the message.
For example, a value of 1 for 5G-capability may be set, indicating that the terminal supports the fifth generation mobile communication network, and a value of 0 for 5G-capability may be set, indicating that the terminal does not support the fifth generation mobile communication network. The base station can know whether the terminal can support the fifth generation mobile communication network according to the 5G capability parameter value of the terminal.
In step 370, if the terminal can support the fifth generation mobile communication network, the base station selects the 4G/5G converged network slice to provide service for the terminal, and sends an Initial terminal message (Initial UE message) to the 4G/5G converged network slice, where the Initial terminal message includes an attach request of the terminal, to complete a subsequent access procedure.
In step 380, if the terminal is unable to support the fifth generation mobile communication network, the base station selects the conventional 4G network slice to provide service for the terminal, and sends an Initial terminal message (Initial UE message) to the conventional 4G network slice, wherein the Initial UE message includes an attach request of the terminal, and completes a subsequent access procedure.
The base station can route the terminal to a corresponding 4G/5G fusion network slice or a traditional 4G network slice through simple judgment logic according to a 5G capacity parameter value indicated by the terminal through the wireless resource control message, network selection can be realized at a low cost under the condition that resource pools are formed by mixing different network slice devices, EPC whole network coordination upgrading is not needed, S1 interface signaling load is not increased, and a private network identifier is not needed to be planned.
Fig. 4 is a schematic structural diagram of some embodiments of a base station for network selection according to the present disclosure.
As shown in fig. 4, the base station 400 of this embodiment includes: modules 410-430.
A receiving module 410, configured to receive a radio resource control message sent by a terminal, where the portable terminal supports the capability information of the second mobile communication network.
The capability judging module 420 is configured to judge whether the terminal can support the second mobile communication network according to the capability information of the terminal carried in the radio resource control message.
A network selection module 430, configured to select a second network slice corresponding to a second mobile communication network to provide a service for the terminal if the terminal can support the second mobile communication network; and if the terminal can not support the second mobile communication network, selecting a corresponding first network slice of the first mobile communication network to provide service for the terminal.
In some embodiments, in the case that the first mobile communication network is a fourth generation mobile communication network and the second mobile communication network is a fifth generation mobile communication network, the network selection module 430 is configured to:
if the terminal can support a fifth generation mobile communication network, selecting a mobility management entity and a convergence device with access and mobility management functions to provide service for the terminal;
and if the terminal cannot support the fifth generation mobile communication network, selecting a mobility management entity to provide service for the terminal.
In some embodiments, the network selection module 430 is configured to:
if the terminal can support a fifth generation mobile communication network, inquiring the weight of each fusion device, and selecting the fusion device to provide service for the terminal according to the weight of each fusion device;
or, if the terminal cannot support the fifth generation mobile communication network, inquiring the weight of each mobility management entity, and selecting the mobility management entity to provide service for the terminal according to the weight of each mobility management entity.
In some embodiments, the network selection module 430 is configured to:
if the terminal can support the second mobile communication network, inquiring the weight of each device in the second network slice, and selecting a device from the second network slice according to the weight of each device in the second network slice to provide service for the terminal;
or, if the terminal can not support the second mobile communication network, inquiring the weight of each device in the first network slice, and selecting the device from the first network slice according to the weight of each device in the first network slice to provide the service for the terminal.
Fig. 5 is a schematic structural diagram of another embodiment of a base station for network selection according to the present disclosure.
As shown in fig. 5, the base station 500 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510, the processor 520 being configured to perform the network selection method in any of the embodiments based on instructions stored in the memory 510.
The present disclosure also proposes a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the network selection method in any of the foregoing embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (7)
1. A network selection method comprises the following steps:
a base station receives a radio resource control message sent by a terminal, wherein the radio resource control message carries the capability information of the terminal supporting a second mobile communication network;
the base station judges whether the terminal can support a second mobile communication network according to the capability information of the terminal carried by the radio resource control message;
if the terminal can support a second mobile communication network, the base station selects a corresponding second network slice of the second mobile communication network to provide service for the terminal;
if the terminal can not support a second mobile communication network, the base station selects a first network slice corresponding to a first mobile communication network to provide service for the terminal;
wherein the second mobile communication network is a next generation evolution network of the first mobile communication network;
wherein, in case that the first mobile communication network is a fourth generation mobile communication network, the second mobile communication network is a fifth generation mobile communication network, and in case that the mobility management entity and the convergence device are mixed to form a resource pool, the convergence device is a mobility management entity and a convergence device of an access and mobility management function:
if the terminal can support a fifth generation mobile communication network, the base station selects a mobility management entity and fusion equipment with access and mobility management functions to provide service for the terminal, inquires the weight of each fusion equipment and selects the fusion equipment to provide service for the terminal according to the weight of each fusion equipment;
and if the terminal can not support a fifth generation mobile communication network, the base station selects a mobility management entity to provide service for the terminal, inquires the weight of each mobility management entity, and selects the mobility management entity to provide service for the terminal according to the weight of each mobility management entity.
2. The method of claim 1, wherein,
the base station inquires the weight of each device in the second network slice, and selects a device from the second network slice to provide service for the terminal according to the weight of each device in the second network slice;
alternatively, the first and second electrodes may be,
and the base station inquires the weight of each device in the first network slice, and selects a device from the first network slice according to the weight of each device in the first network slice to provide service for the terminal.
3. The method of claim 1, wherein the radio resource control message is a radio resource controlled connection setup complete message.
4. A base station for network selection, comprising:
a receiving module, configured to receive a radio resource control message sent by a terminal, where the radio resource control message carries capability information of the terminal supporting a second mobile communication network;
a capability judging module, configured to judge whether the terminal can support a second mobile communication network according to the capability information of the terminal carried in the radio resource control message;
the network selection module is used for selecting a second network slice corresponding to a second mobile communication network to provide service for the terminal if the terminal can support the second mobile communication network; if the terminal can not support the second mobile communication network, selecting a first network slice corresponding to the first mobile communication network to provide service for the terminal;
wherein the second mobile communication network is a next generation evolution network of the first mobile communication network;
wherein, in case that the first mobile communication network is a fourth generation mobile communication network, the second mobile communication network is a fifth generation mobile communication network, and in case that the mobility management entity and the convergence device are mixed to form a resource pool, the convergence device is a mobility management entity and a convergence device of an access and mobility management function:
the network selection module is used for:
if the terminal can support a fifth generation mobile communication network, selecting a mobility management entity and fusion equipment with access and mobility management functions to provide services for the terminal, inquiring the weight of each fusion equipment, and selecting the fusion equipment to provide services for the terminal according to the weight of each fusion equipment;
and if the terminal can not support the fifth generation mobile communication network, selecting a mobility management entity to provide service for the terminal, inquiring the weight of each mobility management entity, and selecting the mobility management entity to provide service for the terminal according to the weight of each mobility management entity.
5. The base station of claim 4, wherein the network selection module is configured to:
if the terminal can support a second mobile communication network, inquiring the weight of each device in a second network slice, and selecting a device from the second network slice according to the weight of each device in the second network slice to provide service for the terminal;
alternatively, the first and second electrodes may be,
and if the terminal can not support the second mobile communication network, inquiring the weight of each device in the first network slice, and selecting a device from the first network slice according to the weight of each device in the first network slice to provide service for the terminal.
6. A base station for network selection, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the network selection method of any of claims 1-3 based on instructions stored in the memory.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the network selection method of any one of claims 1 to 3.
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