CN112492063B - IP address pool allocation and application method, device, equipment and medium - Google Patents
IP address pool allocation and application method, device, equipment and medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5061—Pools of addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5092—Address allocation by self-assignment, e.g. picking addresses at random and testing if they are already in use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
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Abstract
The embodiment of the invention discloses an IP address pool allocation and application method, device, equipment and medium in a 5G network environment. The IP address pool allocation method comprises the following steps: receiving a registration request message sent by target Session Management Function (SMF) equipment or target User Plane Function (UPF) equipment, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell; when the registration request message carries a request cell for distributing the IP address pool of the user terminal, determining a target IP address pool according to the request cell for distributing the IP address pool of the user terminal; and sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries information of a target IP address pool. According to the technical scheme of the embodiment of the invention, the NRF is adopted to perform unified allocation management on the IP address pool of the user terminal, so that the flexibility of IP address allocation is improved, and the use efficiency of the IP address is improved.
Description
Technical Field
The embodiment of the invention relates to the field of mobile communication, in particular to an IP address pool allocation and application method, device, equipment and medium.
Background
With the continuous development of communication technology, the number of terminals accessed by a wireless communication system is increased in geometric progression, and it is important to accurately and reasonably allocate and manage an IP address pool.
In the prior art, a commonly adopted mobile communication system user terminal IP address (Internet Protocol Address ) pool allocation method specifically includes that IP address planning of a user terminal is performed in advance, and then static allocation of the user terminal IP address pool is performed on an SMF (Session Management Function ) device or a UPF (User Plane Function, user plane function) device.
The above manner of statically allocating the IP address pool, on the one hand, cannot be flexibly adjusted according to the number of IP addresses actually required in the use process of the system, on the other hand, cannot confirm whether the allocated IP addresses are used, is inconvenient for management of the IP address pool, and cannot recover the IP addresses in time and recycle the IP addresses when the SMF device or the UPF device allocated with the IP address pool is not used any more, so that the use efficiency of the IP addresses is low.
Disclosure of Invention
The embodiment of the invention provides an IP address pool allocation, application method, device, equipment and medium, which are used for enhancing the function of NRF (network storage function), realizing unified allocation management of the user terminal IP address pool by adopting NRF (NF Repository Function), improving the flexibility of IP address allocation and improving the use efficiency of IP addresses.
In a first aspect, an embodiment of the present invention provides a method for allocating an IP address pool, which is applied to an NRF end of a network storage function, where the method includes:
receiving a registration request message sent by target Session Management Function (SMF) equipment or target User Plane Function (UPF) equipment, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell;
when the registration request message carries a request cell for distributing the IP address pool of the user terminal, determining a target IP address pool according to the request cell for distributing the IP address pool of the user terminal;
and sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries information of a target IP address pool.
In a second aspect, an embodiment of the present invention further provides an IP address pool application method, which is applied to an SMF device or a UPF device, where the method includes:
sending a registration request message to an NRF end, wherein the registration request message carries a user terminal IP address pool allocation request cell;
and receiving a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carrying out configuration and updating of downlink routing according to the target IP address pool, wherein the target IP address pool is a target IP address set distributed to the SMF equipment or UPF equipment.
In a third aspect, an embodiment of the present invention further provides an IP address pool allocation apparatus, where the apparatus includes:
a registration request message receiving module, configured to receive a registration request message sent by a target session management function SMF device or a target user plane function UPF device, and detect whether the registration request message carries a user terminal IP address pool allocation request cell;
the IP address pool determining module is used for determining a target IP address pool according to the user terminal IP address pool allocation request cell when the registration request message carries the user terminal IP address pool allocation request cell;
and the registration response message sending module is used for sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries the information of the target IP address pool.
In a fourth aspect, an embodiment of the present invention further provides an IP address pool application apparatus, where the apparatus includes:
a registration request message sending module, configured to send a registration request message to an NRF end, where the registration request message carries a request cell allocated to an IP address pool of a user terminal;
and the registration response message receiving module is used for receiving registration response messages which are fed back by the NRF end and contain information of a target IP address pool, and carrying out configuration and updating of downlink routes according to the target IP address pool, wherein the target IP address pool is a target IP address set distributed to the SMF equipment or UPF equipment.
In a fifth aspect, an embodiment of the present invention further provides an electronic device, including:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the IP address pool allocation method or the IP address pool application method provided by any embodiment of the present invention.
In a sixth aspect, an embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the IP address pool allocation method or the IP address pool application method provided in any embodiment of the present invention.
According to the technical scheme of the embodiment of the invention, the NRF terminal firstly receives the registration request message sent by the target SMF device or the target UPF device, detects whether the registration request message carries the user terminal IP address pool allocation request cell, when the registration request message carries the user terminal IP address pool allocation request cell, the target IP address pool is determined according to the user terminal IP address pool allocation request cell, and finally sends the registration response message to the target SMF device or the target UPF device, wherein the registration response message carries the information of the target IP address pool, so that the mode of using static allocation IP address pool allocation in the prior art is improved, the problems that the IP address pool allocation is inflexible and the IP address use efficiency is low are solved, the NRF is adopted to uniformly allocate and manage the user terminal IP address pool, the flexibility of IP address allocation is improved, and the use efficiency of IP addresses is improved.
Drawings
Fig. 1 is a flowchart of an IP address pool allocation method according to a first embodiment of the present invention;
fig. 2a is a flowchart of an IP address pool allocation method in a second embodiment of the present invention;
FIG. 2b is a flow chart of IP address pool assignment in a second embodiment of the invention;
FIG. 2c is a flow chart of IP address pool release in a second embodiment of the invention;
FIG. 3 is a flow chart of a method for applying an IP address pool in accordance with a third embodiment of the present invention;
FIG. 4 is a flow chart of a method for applying for an IP address pool in accordance with a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an IP address pool allocation apparatus in a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an IP address pool application apparatus in a sixth embodiment of the present invention;
fig. 7 is a schematic structural view of an apparatus according to a seventh embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a flowchart of an IP address pool allocation method in a first embodiment of the present invention, where the technical solution of the present embodiment is applicable to a case of unified allocation and management of IP address pools by NRF in a 5G network environment, the method may be executed by an IP address pool allocation device, and specifically includes the following steps:
step 110, receiving a registration request message sent by the target session management function SMF device or the target user plane function UPF device, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell.
The SMF is a core network control plane entity and is mainly responsible for maintaining PDU Session (Packet Data Unit Session ), distributing user IP address, and having service quality control and charging functions; and the user receives the downlink data packet to buffer in an idle state and informs the AMF (Access and Mobility Management Function ) of paging the user and the like. The UPF is a core network user plane functional entity responsible for forwarding user data messages and also counting the user data messages for charging and other functions; the cell refers to a bit string of a fixed length composed of a header string and an information string, and the user terminal IP address pool allocation cell referred to in this embodiment refers to a cell containing user terminal IP address request information.
In this embodiment, when receiving a registration request message sent by a target SMF device or a target UPF device, the NRF first detects whether the registration request message carries a user terminal IP address pool allocation request cell, where the user terminal IP address pool allocation request cell is used to provide an allocation request of a user terminal IP address pool to the NRF, and for example, the user terminal IP address pool allocation request cell may include the requested IP address number or IP address range, etc. In addition, the capacity of the user terminal IP address pool can be expanded in the NRF use process.
Step 120, when the registration request message carries the request cell for allocating the user terminal IP address pool, determining the target IP address pool according to the request cell for allocating the user terminal IP address pool.
In this embodiment, when detecting that the registration request message carries a request cell for allocating an IP address pool of the user terminal, the NRF may parse the request cell for allocating the IP address pool of the user terminal, so as to determine a target IP address pool to be allocated according to the request cell for allocating the IP address pool of the user terminal. Wherein the target IP address pool is a set of target IP addresses to be allocated.
For example, when it is detected that the registration request message carries a request cell for allocating an IP address pool of a user terminal, and after resolving the request cell, it is obtained that the request cell for allocating an IP address pool of a user terminal includes 10 IP addresses, the NRF may obtain 10 IP addresses of the user terminal from IP addresses in an idle state, and determine a set of the 10 IP addresses of the user terminal as a target IP address pool.
And 130, sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries the information of the target IP address pool.
In this embodiment, after determining the target IP address pool, the NRF sends a registration response message to the target SMF device or the target UPF device, where the registration response message carries the target IP address pool information allocated to the target SMF device or the target UPF device.
For example, the identification information of the target IP address pool formed by the IP addresses of the 10 user terminals is added to the registration response message, so that the target IP address pool is allocated to the target SMF device or the target UPF device, and the subsequent target SMF device or UPF device can perform route update according to the target IP address pool information.
According to the technical scheme of the embodiment of the invention, the NRF terminal firstly receives the registration request message sent by the target SMF device or the target UPF device, detects whether the registration request message carries the user terminal IP address pool allocation request cell, when the registration request message carries the user terminal IP address pool allocation request cell, the target IP address pool is determined according to the user terminal IP address pool allocation request cell, and finally sends the registration response message to the target SMF device or the target UPF device, wherein the registration response message carries the information of the target IP address pool, so that the mode of using static allocation IP address pool allocation in the prior art is improved, the problems that the IP address pool allocation is inflexible and the IP address use efficiency is low are solved, the NRF is adopted to uniformly allocate and manage the user terminal IP address pool, the flexibility of IP address allocation is improved, and the use efficiency of IP addresses is improved.
Example two
Fig. 2a is a flowchart of an IP address pool allocation method according to a second embodiment of the present invention, which is further refined on the basis of the foregoing embodiment, and provides specific steps for determining a target IP address pool according to the IP address pool allocation request cell of the user terminal, and specific steps after sending a registration response message to the target SMF device or the target UPF device. The following describes an IP address pool allocation method according to a second embodiment of the present invention with reference to fig. 2a, including the following steps:
step 210, receiving a registration request message sent by the target SMF device or the target UPF device, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell.
Step 220, when the registration request message carries the request cell for allocating the user terminal IP address pool, determining the target IP address pool according to the request cell for allocating the user terminal IP address pool.
Optionally, the user terminal IP address pool allocation request cell includes the number of IP addresses and/or the IP address range;
determining a target IP address pool according to the IP address pool allocation request cell of the user terminal, wherein the target IP address pool comprises at least one of the following steps:
acquiring a set of IP addresses matched with the target IP address number from the idle IP addresses according to the target IP address number contained in the IP address pool allocation request cell of the user terminal as a target IP address pool;
According to the target IP address range contained in the user terminal IP address pool allocation request cell, when the IP addresses contained in the target IP address range are in idle states, acquiring a target IP address pool containing all IP addresses in the target IP address range; and
and acquiring a set of idle state IP addresses matched with the target IP address number from the target IP address range as a target IP address pool according to the target IP address number and the target IP address range contained in the IP address pool allocation request cell of the user terminal.
In this optional embodiment, it is further defined that the IP address pool allocation request cell of the user terminal includes the number of IP addresses and/or the IP address range, and accordingly, according to the IP address pool allocation request cell of the user terminal, the determining the target IP address pool may have three manners as follows:
1. when the user terminal IP address pool allocation request cell only comprises the target IP address quantity, the NRF acquires an IP address set matched with the target IP address quantity from the IP addresses in the idle state as a target IP address pool. For example, if the number of target IP addresses is 5, 5 target IP addresses are obtained from the IP addresses in the idle state, and the 5 target IP address sets are used as the target IP address pool. Wherein the states of the IP address include a use state and an idle state, and the IP address in the idle state may be allocated.
2. When the IP address range of the user terminal only comprises the target IP address range in the IP address pool allocation request cell, when the IP addresses in the target IP address range are in idle states, all the IP addresses in the target IP address range are acquired, and the set of the IP addresses is used as the target IP address pool.
3. When the user terminal IP address pool allocation request cell includes the target IP address number and the target IP address range, the IP address set in the idle state in the target IP address range may be determined first, the target IP address number of IP addresses may be obtained from the IP address set, and the obtained IP addresses form the target IP address pool.
And 230, modifying the state of at least one target IP address contained in the target IP address pool into a use state, and carrying out association record on the target IP address pool and the target SMF equipment or the target UPF equipment.
In this embodiment, after the destination IP address pool is determined, the states of all the destination IP addresses included in the destination IP address pool are modified to be usage states, so as to avoid allocating the same IP address to different SMF devices or UPF devices, and avoid error allocation. And at the same time, the target IP address pool is associated with the target SMF device or the target UPF device so as to facilitate the subsequent inquiry of the SMF device or the UPF device using the set IP address.
In the embodiment of the present invention, a specific IP address pool allocation flow is shown in fig. 2b, and after determining a target IP address pool, a registration response message is sent to a target SMF device or a target UPF device, where the registration response message carries information of the target IP address pool.
Step 250, receiving a deregistration request message sent by the target SMF device or the target UPF device, and detecting whether the deregistration request message carries a user terminal IP address pool release cell.
In this embodiment, after the destination IP address pool is allocated to the destination SMF device or the UPF device, the SMF device or the UPF device receives a request from each user terminal, and allocates an IP address in the destination IP address pool to each user terminal. When the user terminal no longer uses the allocated IP address, the SMF device or the UPF device may send a deregistration request message to the NRF, and carry the user terminal IP address pool release cell in the deregistration request message. For the NRF end, as shown in fig. 2c, a specific target IP address pool release flow is shown, first, a deregistration request message sent by a target SMF device or a target UPF device is received, and further, whether the deregistration request message carries a user terminal IP address pool release cell is detected, so as to determine whether to release the IP address pool. Wherein the user terminal IP address pool release cell is configured to provide the NRF with a target IP address pool to be released. Illustratively, the user terminal IP address pool release cell includes at least one destination IP address identifier to be released.
In this embodiment, when detecting that the deregistration request message carries a user terminal IP address pool release cell, the NRF removes an allocation relationship of a target IP address pool included in the user terminal IP address pool release cell according to the user terminal IP address pool release cell. For example, the correspondence between the target IP address pool and the target SMF or the target UPF may be deleted.
Optionally, removing the allocation relation of the target IP address pool included in the user terminal IP address pool release cell includes:
and modifying the state of the target IP address in the target IP address pool contained in the user terminal IP address pool release cell into an idle state, and deleting the association relation between the target IP address pool and the target SMF equipment or the target UPF equipment.
In this optional embodiment, a specific manner is provided for removing the allocation relationship of the target IP address pool included in the user terminal IP address pool release cell, first, the state of the target IP address in the target IP address pool included in the user terminal IP address pool release cell is modified to be in an idle state, then, the association relationship between the target IP address pool and the target SMF device or the target UPF device is deleted, and after the association relationship is deleted, it is indicated that the target IP address pool is no longer occupied by the target SMF device or the target UPF device.
Step 270, send a deregistration response message to the target SMF device or the target UPF device, where the deregistration response message includes the target IP address pool release identification information.
In this embodiment, after the allocation relation of the target IP address pool included in the user terminal IP address pool release cell is removed, a deregistration response message is sent to the target SMF device or the target UPF device, and the deregistration response message carries the target IP address pool release identification information, so as to convey the information that the target IP address pool has been released to the target SMF device or the target UPF device.
According to the technical scheme of the embodiment of the invention, the NRF firstly receives a registration request message sent by target SMF equipment or target UPF equipment, detects whether the registration request message carries a user terminal IP address pool allocation request cell, and when the registration request message carries the user terminal IP address pool allocation request cell, determines a target IP address pool according to the user terminal IP address pool allocation request cell, and finally sends a registration response message to the target SMF equipment or target UPF equipment, wherein the registration response message carries information of the target IP address pool; when the IP address pool of the user terminal is not used any more, the NRF receives a deregistration request message sent by the target SMF device or the target UPF device, detects whether the deregistration request message carries a user terminal IP address pool release cell, removes the allocation relation of the target IP address pool contained in the user terminal IP address pool release cell according to the user terminal IP address pool release cell when the deregistration request message carries the user terminal IP address pool release cell, and sends a deregistration response message to the target SMF device or the target UPF device, so that unified allocation management of the user terminal IP address pool through the NRF is realized, the flexibility of IP address allocation is improved, and the use efficiency of the IP address is improved.
Example III
Fig. 3 is a flowchart of an IP address pool application method in a third embodiment of the present invention, where the technical solution of the present embodiment is applicable to the case of unified allocation and management of IP address pools by NRF in a 5G network environment, and the method may be executed by an IP address pool application device, and specifically includes the following steps:
In this embodiment, in order to achieve the effect of flexibly configuring the IP address pool, the SMF device or the UPF device first sends a registration request message to the NRF end, and carries user terminal IP address pool allocation request information in the registration request message, where the user terminal IP address pool allocation request information element is used to provide an allocation request of the user terminal IP address pool to the NRF, for example, the user terminal IP address pool allocation request information element may include the number of requested IP addresses or an IP address range, and so on.
In this embodiment, after determining the target IP address pool, the NRF may feed back registration response information to the SMF device or the UPF device. Correspondingly, for the SMF device or the UPF device, after receiving the registration response message containing the information of the target IP address pool fed back by the NRF end, the configuration and update of the downlink route are carried out according to the target IP address pool, so that the user terminal can request the IP address from the SMF device or the UPF device through the updated route. Wherein the target IP address pool is a set of target IP addresses assigned to the SMF device or the UPF device.
According to the technical scheme of the embodiment of the invention, SMF equipment or UPF equipment firstly sends a registration request message to an NRF end, the registration request message carries a user terminal IP address pool allocation request cell, then receives a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carries out configuration and updating of downlink routes according to the target IP address pool, so that the mode of using static allocation IP address pool allocation in the prior art is changed, the problems of inflexible IP address pool allocation and low IP address use efficiency are solved, the NRF is adopted to carry out unified allocation management on the user terminal IP address pool, the flexibility of IP address allocation is improved, and the use efficiency of IP addresses is improved.
Example IV
Fig. 4 is a flowchart of an IP address pool application method according to a fourth embodiment of the present invention, where the embodiment is further refined on the basis of the foregoing embodiment, and specific steps after receiving a registration response message including information of a target IP address pool fed back by an NRF end are provided. The following describes an IP address pool application method according to a fourth embodiment of the present invention with reference to fig. 4, including the following steps:
Step 420, receiving a registration response message containing information of a target IP address pool fed back by the NRF end, and performing configuration and update of a downlink route according to the target IP address pool, where the target IP address pool is a target IP address set allocated to the SMF device or the UPF device.
In this embodiment, in order to implement recycling of IP addresses and improve the IP address utilization efficiency, after the user terminal no longer uses the allocated IP address, the SMF device or the UPF device may send a deregistration request message to the NRF end, where the deregistration request message carries an IP address release cell of the user terminal, where the IP address release cell of the user terminal is used to provide an IP address pool to be released for the NRF. Illustratively, the user terminal IP address release cell includes identification information of the IP address pool to be released.
Step 440, receiving a de-registration response message containing the target IP address pool release identification information fed back by the NRF end, and performing configuration and update of the downlink route according to the target IP address pool release identification information.
In this embodiment, after receiving a deregistration response message including target IP address pool release identification information fed back by the NRF end, the user terminal configures and updates a downlink path according to the target IP address pool release identification information, so that the user terminal may request an IP address from the SMF device or the UPF device through an updated route.
According to the technical scheme of the embodiment of the invention, SMF equipment or UPF equipment firstly sends a registration request message to an NRF end, the registration request message carries a request cell for distributing an IP address pool of a user terminal, then receives a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carries out configuration and updating of a downlink route according to the target IP address pool.
Example five
Fig. 5 is a schematic structural diagram of an IP address pool allocation apparatus according to a fifth embodiment of the present invention, where the IP address pool allocation apparatus includes: a registration request message receiving module 510, an IP address pool determining module 520, and a registration response message transmitting module 530.
A registration request message receiving module 510, configured to receive a registration request message sent by a target session management function SMF device or a target user plane function UPF device, and detect whether the registration request message carries a user terminal IP address pool allocation request cell;
an IP address pool determining module 520, configured to determine, when the registration request message carries a request cell for allocation of an IP address pool of a user terminal, a target IP address pool according to the request cell for allocation of the IP address pool of the user terminal;
and the registration response message sending module 530 is configured to send a registration response message to the target SMF device or the target UPF device, where the registration response message carries information of the target IP address pool.
According to the technical scheme of the embodiment of the invention, the NRF terminal firstly receives the registration request message sent by the target SMF device or the target UPF device, detects whether the registration request message carries the user terminal IP address pool allocation request cell, when the registration request message carries the user terminal IP address pool allocation request cell, the target IP address pool is determined according to the user terminal IP address pool allocation request cell, and finally sends the registration response message to the target SMF device or the target UPF device, wherein the registration response message carries the information of the target IP address pool, so that the mode of using static allocation IP address pool allocation in the prior art is improved, the problems that the IP address pool allocation is inflexible and the IP address use efficiency is low are solved, the NRF is adopted to uniformly allocate and manage the user terminal IP address pool, the flexibility of IP address allocation is improved, and the use efficiency of IP addresses is improved.
Optionally, the IP address pool allocation apparatus further includes:
the de-registration request message receiving module is used for receiving a de-registration request message sent by the target SMF device or the target UPF device after sending a registration response message to the target SMF device or the target UPF device, and detecting whether the de-registration request message carries a user terminal IP address pool release cell or not;
the allocation relation removing module is used for removing the allocation relation of the target IP address pool contained in the user terminal IP address pool release cell according to the user terminal IP address pool release cell when the de-registration request message carries the user terminal IP address pool release cell;
and the deregistration response message sending module is used for sending a deregistration response message to the target SMF equipment or the target UPF equipment, wherein the deregistration response message contains the target IP address pool release identification information.
Optionally, the user terminal IP address pool allocation request cell includes an IP address number and/or an IP address range;
the IP address pool determining module 520 is specifically configured to perform at least one of the following target IP address pool determining schemes:
acquiring a set of IP addresses matched with the target IP address number from the idle IP addresses according to the target IP address number contained in the IP address pool allocation request cell of the user terminal as a target IP address pool;
According to the target IP address range contained in the IP address pool allocation request cell of the user terminal, when the IP addresses contained in the target IP address range are in idle states, acquiring a target IP address pool containing all IP addresses in the target IP address range; and
and acquiring a set of idle state IP addresses matched with the target IP address number from the target IP address range as a target IP address pool according to the target IP address number and the target IP address range contained in the IP address pool allocation request cell of the user terminal.
Optionally, the IP address pool allocation apparatus further includes:
the state modifying module is used for modifying the state of at least one target IP address contained in the target IP address pool into a use state after determining the target IP address pool according to the IP address pool allocation request cell of the user terminal, and carrying out association record on the target IP address pool and the target SMF equipment or the target UPF equipment;
the allocation relation removing module is specifically configured to:
and modifying the state of the target IP address in the target IP address pool contained in the user terminal IP address pool release cell into an idle state, and deleting the association relation between the target IP address pool and the target SMF equipment or the target UPF equipment.
The IP address pool allocation device provided by the embodiment of the invention can execute the IP address pool allocation method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example six
Fig. 6 is a schematic structural diagram of an IP address pool application device according to a sixth embodiment of the present invention, where the IP address pool application device includes: a registration request message sending module 610 and a registration response message receiving module 620.
A registration request message sending module 610, configured to send a registration request message to an NRF end, where the registration request message carries a request cell allocated to an IP address pool of a user terminal;
the registration response message receiving module 620 is configured to receive a registration response message including information of a target IP address pool fed back by the NRF side, and perform configuration and update of a downlink route according to the target IP address pool, where the target IP address pool is a target IP address set allocated to the SMF device or the UPF device.
According to the technical scheme of the embodiment of the invention, SMF equipment or UPF equipment firstly sends a registration request message to an NRF end, the registration request message carries a user terminal IP address pool allocation request cell, then receives a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and configures and updates downlink routes according to the target IP address pool, so that the mode of using static allocation IP address pool allocation in the prior art is improved, the problems of inflexible IP address pool allocation and low IP address use efficiency are solved, the NRF is adopted to uniformly allocate and manage the user terminal IP address pool, the flexibility of IP address allocation is improved, and the use efficiency of IP addresses is improved.
Optionally, the IP address pool applying apparatus further includes:
a deregistration request message sending module, configured to send a deregistration request message to an NRF end after receiving a registration response message including information of a target IP address pool fed back by the NRF end, where the deregistration request message carries a user terminal IP address pool release cell;
and the deregistration response message receiving module is used for receiving deregistration response messages which are fed back by the NRF end and contain target IP address pool release identification information, and carrying out configuration and updating of downlink routes according to the target IP address pool release identification information.
The IP address pool application device provided by the embodiment of the invention can execute the IP address pool application method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example seven
Fig. 7 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present invention, as shown in fig. 7, the electronic device includes a processor 70 and a memory 71; the number of processors 70 in the device may be one or more, one processor 70 being taken as an example in fig. 7; the processor 70 and the memory 71 in the device may be connected by a bus or otherwise, for example in fig. 7.
The memory 71 is a computer-readable storage medium, and may be used to store a software program, a computer-executable program, and modules, such as program instructions/modules corresponding to an IP address pool allocation method or an IP address pool application method in an embodiment of the present invention (e.g., a registration request message receiving module 510, an IP address pool determining module 520, and a registration response message sending module 530 in an IP address pool allocation apparatus, or a registration request message sending module 610 and a registration response message receiving module 620 in an IP address pool application apparatus). The processor 70 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 71, i.e., implements the above-described IP address pool allocation method or IP address pool application method.
The IP address pool allocation method comprises the following steps:
receiving a registration request message sent by target Session Management Function (SMF) equipment or target User Plane Function (UPF) equipment, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell;
when the registration request message carries a request cell for distributing the IP address pool of the user terminal, determining a target IP address pool according to the request cell for distributing the IP address pool of the user terminal;
And sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries information of a target IP address pool.
The method for applying the IP address pool comprises the following steps:
sending a registration request message to an NRF end, wherein the registration request message carries a user terminal IP address pool allocation request cell;
and receiving a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carrying out configuration and updating of downlink routing according to the target IP address pool, wherein the target IP address pool is a target IP address set distributed to the SMF equipment or UPF equipment.
The memory 71 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal, etc. In addition, memory 71 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 71 may further include memory remotely located relative to processor 70, which may be connected to the device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Example eight
An eighth embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program for executing an IP address pool allocation method or an IP address application method when executed by a computer processor.
The IP address pool allocation method comprises the following steps:
receiving a registration request message sent by target Session Management Function (SMF) equipment or target User Plane Function (UPF) equipment, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell;
when the registration request message carries a request cell for distributing the IP address pool of the user terminal, determining a target IP address pool according to the request cell for distributing the IP address pool of the user terminal;
and sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries information of a target IP address pool.
The method for applying the IP address pool comprises the following steps:
sending a registration request message to an NRF end, wherein the registration request message carries a user terminal IP address pool allocation request cell;
and receiving a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carrying out configuration and updating of downlink routing according to the target IP address pool, wherein the target IP address pool is a target IP address set distributed to the SMF equipment or UPF equipment.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the IP address pool allocation apparatus and the IP address pool application apparatus, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. The IP address pool allocation method is characterized by being applied to an NRF end of a network storage function and comprising the following steps:
receiving a registration request message sent by target Session Management Function (SMF) equipment or target User Plane Function (UPF) equipment, and detecting whether the registration request message carries a user terminal IP address pool allocation request cell;
when the registration request message carries a request cell for distributing the IP address pool of the user terminal, determining a target IP address pool according to the request cell for distributing the IP address pool of the user terminal;
Sending a registration response message to the target SMF device or the target UPF device, wherein the registration response message carries information of a target IP address pool;
after sending the registration response message to the target SMF device or the target UPF device, the method further includes:
receiving a deregistration request message sent by target SMF equipment or target UPF equipment, and detecting whether the deregistration request message carries a user terminal IP address pool release cell or not; wherein, the user terminal IP address pool release cell comprises at least one target IP address mark to be released;
when the deregistration request message carries a user terminal IP address pool release cell, removing the allocation relation of a target IP address pool contained in the user terminal IP address pool release cell according to the user terminal IP address pool release cell;
and sending a de-registration response message to the target SMF device or the target UPF device, wherein the de-registration response message comprises the target IP address pool release identification information.
2. The method according to claim 1, wherein the user terminal IP address pool allocation request cell comprises a number of IP addresses and/or a range of IP addresses;
Determining a target IP address pool according to the IP address pool allocation request cell of the user terminal, wherein the target IP address pool comprises at least one of the following steps:
acquiring a set of IP addresses matched with the target IP address number from the idle IP addresses according to the target IP address number contained in the IP address pool allocation request cell of the user terminal as a target IP address pool;
according to the target IP address range contained in the IP address pool allocation request cell of the user terminal, when the IP addresses contained in the target IP address range are in idle states, acquiring a target IP address pool containing all IP addresses in the target IP address range; and
and acquiring a set of idle state IP addresses matched with the target IP address number from the target IP address range as a target IP address pool according to the target IP address number and the target IP address range contained in the IP address pool allocation request cell of the user terminal.
3. The method of claim 1, further comprising, after determining a target IP address pool from the user terminal IP address pool allocation request cell:
modifying the state of at least one target IP address contained in the target IP address pool into a use state, and carrying out association record on the target IP address pool and the target SMF equipment or the target UPF equipment;
The step of removing the allocation relation of the target IP address pool contained in the IP address pool release cell of the user terminal comprises the following steps:
and modifying the state of the target IP address in the target IP address pool contained in the user terminal IP address pool release cell into an idle state, and deleting the association relation between the target IP address pool and the target SMF equipment or the target UPF equipment.
4. The method for applying the IP address pool is characterized by being applied to SMF equipment or UPF equipment and comprising the following steps:
sending a registration request message to an NRF end, wherein the registration request message carries a user terminal IP address pool allocation request cell;
receiving a registration response message which is fed back by the NRF end and contains information of a target IP address pool, and carrying out configuration and updating of downlink routes according to the target IP address pool, wherein the target IP address pool is a target IP address set distributed to the SMF equipment or UPF equipment;
after receiving the registration response message containing the information of the target IP address pool fed back by the NRF end, the method further comprises the following steps:
transmitting a deregistration request message to an NRF end, wherein the deregistration request message carries a user terminal IP address pool release cell; wherein, the user terminal IP address pool release cell comprises at least one target IP address mark to be released;
And receiving a de-registration response message which is fed back by the NRF end and contains target IP address pool release identification information, and carrying out configuration and updating of a downlink route according to the target IP address pool release identification information.
5. An IP address pool allocation apparatus, comprising:
a registration request message receiving module, configured to receive a registration request message sent by a target session management function SMF device or a target user plane function UPF device, and detect whether the registration request message carries a user terminal IP address pool allocation request cell;
the IP address pool determining module is used for determining a target IP address pool according to the user terminal IP address pool allocation request cell when the registration request message carries the user terminal IP address pool allocation request cell;
a registration response message sending module, configured to send a registration response message to the target SMF device or the target UPF device, where the registration response message carries information of a target IP address pool;
the de-registration request message receiving module is used for receiving a de-registration request message sent by the target SMF device or the target UPF device after sending a registration response message to the target SMF device or the target UPF device, and detecting whether the de-registration request message carries a user terminal IP address pool release cell or not; wherein, the user terminal IP address pool release cell comprises at least one target IP address mark to be released;
The allocation relation removing module is used for removing the allocation relation of the target IP address pool contained in the user terminal IP address pool release cell according to the user terminal IP address pool release cell when the de-registration request message carries the user terminal IP address pool release cell;
and the deregistration response message sending module is used for sending a deregistration response message to the target SMF equipment or the target UPF equipment, wherein the deregistration response message contains the target IP address pool release identification information.
6. An IP address pool application apparatus, comprising:
a registration request message sending module, configured to send a registration request message to an NRF end, where the registration request message carries a request cell allocated to an IP address pool of a user terminal;
a registration response message receiving module, configured to receive a registration response message including information of a target IP address pool fed back by the NRF end, and perform configuration and update of a downlink route according to the target IP address pool, where the target IP address pool is a target IP address set allocated to an SMF device or a UPF device;
a deregistration request message sending module, configured to send a deregistration request message to an NRF end after receiving a registration response message including information of a target IP address pool fed back by the NRF end, where the deregistration request message carries a user terminal IP address pool release cell; wherein, the user terminal IP address pool release cell comprises at least one target IP address mark to be released;
And the deregistration response message receiving module is used for receiving deregistration response messages which are fed back by the NRF end and contain target IP address pool release identification information, and carrying out configuration and updating of downlink routes according to the target IP address pool release identification information.
7. An electronic device, the electronic device comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the IP address pool allocation method of any of claims 1-3, or the IP address pool application method of claim 4.
8. A computer storage medium having stored thereon a computer program, which when executed by a processor implements the IP address pool allocation method of any one of claims 1 to 3 or the IP address pool application method of claim 4.
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| CN113382468B (en) * | 2021-06-24 | 2022-11-04 | 深圳艾灵网络有限公司 | Address allocation method for local network device, electronic device, and storage medium |
| CN113891303B (en) * | 2021-10-28 | 2023-07-28 | 中国联合网络通信集团有限公司 | Method and device for acquiring IP address change information |
| CN114268607B (en) * | 2021-12-20 | 2024-03-19 | 中国电信股份有限公司 | Fixed IP address allocation method, system, user plane function network element and storage medium |
| CN114390629B (en) * | 2022-01-21 | 2022-10-21 | 广州爱浦路网络技术有限公司 | Control method and system for backhaul route of 5G network terminal |
| WO2024012907A1 (en) * | 2022-07-15 | 2024-01-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhanced network function registration and discovery |
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