CN112020121B - Access control method, equipment and computer storage medium - Google Patents
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- H—ELECTRICITY
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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- H—ELECTRICITY
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/00—Access restriction; Network selection; Access point selection
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- H04W76/27—Transitions between radio resource control [RRC] states
Abstract
The embodiment of the invention provides a method, equipment and a computer storage medium for access control; the method may include: the method comprises the steps that a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI is established between User Equipment (UE) and network side equipment; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI; the UE loads the SSI of the target network slice in the uplink signaling based on the mapping relation; the UE sends the uplink signaling carrying SSI of the target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI. Not only reducing the consumption of signaling resources and avoiding the waste of signaling resources between the UE and the network side, but also reducing the time delay for controlling the access to the network slice.
Description
The application is provided with the application number of 201880003666.9, the application date of 2018, 01 month and 19 days, and the invention is provided with the name: an access control method, apparatus and computer storage medium divisional application.
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, equipment and a computer storage medium for access control.
Background
In long term evolution (LTE, long Term Evolution) systems, an access control admission (ACB, access Control Barring) mechanism is introduced in order to avoid the occurrence of network overload phenomena. With the development of communication technology, research on the fifth generation mobile communication technology (5G,5th Generation) has been also conducted. The 5G wireless access is called New Radio, NR for short. In 5G NR, a Network slice (Network slice) concept is introduced, and different slices have corresponding slice instances (instances) on the radio access Network (RAN, radio Access Network) side and the Core Network (CN) side, and because the different slice instances (instances) have a certain isolation characteristic.
At present, after a terminal needs to enter a connection state and attach, the network slice information can be acquired, and the network side can only perform access control on the network slice based on the action of the terminal for acquiring the network slice information. Therefore, when the terminal is in the process of changing from the idle state to the connected state, if the target network slice is overloaded, the network side can only perform access control on the target network slice according to the target network slice identifier carried in the message sent by the connected state terminal after the terminal enters the connected state, and release the terminal. Therefore, the consumption of signaling resources between the terminal and the network side is increased, the waste of the signaling resources is generated between the terminal and the network side, and the time delay of access control is also increased.
Disclosure of Invention
The embodiment of the invention expects to provide a method, equipment and a computer storage medium for access control; the method can reduce the consumption of signaling resources, avoid the waste of signaling resources between the terminal and the network side, and reduce the time delay of access control.
The technical scheme of the embodiment of the invention can be realized as follows:
in a first aspect, an embodiment of the present invention provides a method for access control, where the method includes:
the User Equipment (UE) and the network side equipment establish a mapping relation between a Short Slice Identifier (SSI) and network slice selection auxiliary information (NSSAI, network Slice Selection Assistance Information); wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
when the UE is in a non-connection state, the UE loads the SSI of the target network slice in an uplink signaling based on the mapping relation;
the UE sends the uplink signaling carrying SSI of the target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI.
In a second aspect, an embodiment of the present invention provides a method for access control, where the method includes:
The method comprises the steps that a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI is established between network side equipment and UE; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the network side equipment receives an uplink signaling carrying SSI sent by the UE;
and the network side equipment performs access control according to a set access control strategy aiming at the network slice indicated by the SSI carried in the uplink signaling.
In a third aspect, an embodiment of the present invention provides a UE, including: a first establishing section, a bearing section and a transmitting section; wherein,
the first establishing part is configured to establish a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI with network side equipment; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the bearing part is configured to bear the SSI of the target network slice in the uplink signaling based on the mapping relation;
the sending part is configured to send the uplink signaling carrying the SSI of the target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI.
In a fourth aspect, an embodiment of the present invention provides a network device, including a second establishing portion, a receiving portion, and an access control portion; wherein,
the second establishing part is configured to establish a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI with the UE; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the receiving part is configured to receive uplink signaling carrying SSI sent by the UE;
the access control part is configured to perform access control on the network slice indicated by the SSI carried in the uplink signaling according to a set access control strategy.
In a fifth aspect, an embodiment of the present invention provides a user equipment, including: a first network interface, a first memory and a first processor; the first network interface is used for receiving and transmitting signals in the process of receiving and transmitting information with other external network elements;
the first memory is used for storing a computer program capable of running on the first processor;
the first processor is configured to perform the steps of the method of the first aspect when the computer program is run.
In a sixth aspect, an embodiment of the present invention provides a network device, including a second network interface, a second memory, and a second processor;
the second network interface is used for receiving and transmitting signals in the process of receiving and transmitting information with other external network elements;
the second memory is used for storing a computer program capable of running on the second processor;
the second processor is configured to perform the steps of the method of the second aspect when the computer program is run.
In a seventh aspect, an embodiment of the present invention provides a computer storage medium storing an information transmission program, which when executed by at least one processor implements the steps of the method of the first or second aspect.
The embodiment of the invention provides a method, equipment and a computer storage medium for access control; after the UE establishes a mapping relationship between a Short Slice Identifier (SSI) and Network Slice Selection Assistance Information (NSSAI) with a network side device, such as an access device (e.g., a gNB) or a core network device (e.g., an AMF), when the UE is in an IDLE state or an INACTIVE state, the UE can carry an SSI with a shorter length in uplink signaling (e.g., a third type message MSG 3) applicable to the non-connected state to the network side device, so that the network side device can use the received SSI to perform access control on a network slice. Compared with the prior art, when the network slice is overloaded, the network side device can perform ACB on the network slice according to the network slice selection auxiliary information (nsai, network Slice Selection Assistance Information) carried by the MSG5 without waiting until the MSG5 is received, and can perform ACB on the network slice in advance. Not only reducing the consumption of signaling resources and avoiding the waste of signaling resources between the UE and the network side, but also reducing the time delay for controlling the access to the network slice.
Drawings
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for access control according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another method for access control according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of an access control according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a composition of a ue according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a specific hardware structure of a user equipment according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a network device according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a specific hardware structure of a network device according to an embodiment of the present invention.
Detailed Description
For a more complete understanding of the nature and the technical content of the embodiments of the present invention, reference should be made to the following detailed description of embodiments of the invention, taken in conjunction with the accompanying drawings, which are meant to be illustrative only and not limiting of the embodiments of the invention.
The concept of network slicing (slice) is currently proposed in the related art of 5G systems; the physical network of the operator is logically divided into a plurality of virtual networks, and each virtual network is divided according to different service requirements, for example, the virtual networks can be divided according to service requirement information such as time delay, bandwidth, priority, security, reliability and the like, so that different network application scenes can be flexibly dealt with. Thus, the different network slices (i.e., virtual networks) are isolated from each other so that errors or faults in one network slice do not affect the normal communications of the other network slice.
Based on the above description of network slices, it can be appreciated that network slice types can include access network slices (Access Network slice), core network slices (Core Network slice), and data network and service slices (Data Network and Service slice). Thus, access Control (AC) is performed for network slices, and the network side devices involved include radio access network devices of the 5G system, such as a gNB; core network devices of 5G systems, such as core access and mobility management (AMF, core Access and Mobility Management Function), may also be included. Therefore, the technical solution of the embodiment of the present invention can be atypically applied to the network architecture scenario shown in fig. 1, in which, after a terminal can access a Radio Access Network (RAN), the terminal accesses a 5G core network through an N2 interface; and the connection with the 5G core network can also be directly carried out through an N1 interface. Note that N1 is a NAS signaling interface between the UE and the AMF, and N2 is an interface between the gNB and the AMF. In addition, in the scenario shown in fig. 1, a Radio Access Network (RAN) device may include a gNB; the 5G core network device may include an AMF; user Equipment (UE) may include cellular telephones, smart phones, session Initiation Protocol (SIP) phones, laptops, personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet computers, or any other similarly-enabled device. Meanwhile, a user device may also be referred to by those skilled in the art as a terminal, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, or some other suitable terminology.
Based on the network architecture shown in fig. 1, at present, relevant network slicing mechanisms are mainly aimed at a network side and a Non-Access Stratum (NAS) of a UE, but the Access Stratum (AS) of the UE is almost transparent to network slicing, for example, no NR system information including a master information block (MIB, master Information Block), remaining minimum system information (RMSI, remaining Minimum System Information) and other system information carries network slicing information. Based on this, the UE in IDLE state cannot learn the network slice service provided by the network side by reading the system information. If the UE desires to obtain a service related to a network slice, it is necessary to enter a connection state and perform attachment (attach) before acquiring network slice information from a network side entity such as AMF. Also, in the current related third generation partnership project (3GPP,3rd Generation Partnership Project) standard Rel-15 version, no direct mapping is supported between the physical random access channel (PARCH, physical Random Access CHannel) and the network slices, and therefore, the UE cannot perform ACB for different network slices based on the PRACH during the radio resource control (RRC, radio Resource Control) signaling interaction through the PRACH.
For the above description of the relevant network slicing mechanism, it can be known that: for an IDLE state UE, ACB cannot be performed in combination with information of a network slice (slice). The reason is that:
first, it is difficult to establish a correspondence between slice information and PARCH resources, RACH resources themselves are limited, and there are a number of supported slices, so that PARCH of different slices cannot perform ACB based on different random access channel (RACH, random Access CHannel) parameters.
Second, since the existing network slice selection assistance information (nsai, network Slice Selection Assistance Information) for identifying network slices is long, including service and slice type (SST, service and Slice Type) information and service and slice differentiation (SSD, service and Slice Differentiator), the total length of both SST and SSD reaches 32 bits, and each UE can currently support 8 network slices in parallel, the total length of the network slice identification information nsai can reach a maximum of bytes, far exceeding the limit of 48 bits set for the third type of message (MSG 3) on the common control channel (CCCH, common Control Channel) channel. Therefore, ACB cannot be implemented for network slices based on MSG 3. This results in the following: if a certain network slice is overloaded, the network slice information cannot be carried in the MSG3 sent by the UE, such as an RRC connection request (RRC Connection Request) message or an RRC connection recovery (RRC Connection Resume) message, so that the network side cannot reject the request according to the overloaded network slice, but continues to reply to a fourth type message (MSG 4), such as an RRC connection setup (RRC Connection Establishment) message; the UE continues to send a fifth type message (MSG 5) after receiving the MSG4, and carries a network slice identifier in the MSG 5; until the network side can not perform ACB according to the network slice identifier, and the network side can not release the RRC connection of the terminal after the network slice is found to be overloaded. In this process, the interaction between the UE and the network side of the MSG4 and the subsequent MSG5 may be considered as increasing the consumption of signaling resources, resulting in unnecessary signaling resource waste.
In order to perform access control on a network slice before MSG5 transmission, an embodiment of the present invention provides a method for access control, where the method may be applied to a UE, see fig. 2, and the method may include:
s201: the UE and the network side equipment establish a mapping relation between a short slice identifier (SSI, shortened Slice Index) and network slice selection auxiliary information NSSAI; wherein, the short slice identifier SSI and the network slice selection auxiliary information NSSAI with the mapping relation both indicate the same network slice; and the SSI is shorter in length than the NSSAI;
s202: the UE loads the SSI of the target network slice in the uplink signaling based on the mapping relation;
s203: the UE sends an uplink signaling carrying SSI of a target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI.
Based on the technical solution shown in fig. 2, after the UE establishes a mapping relationship between the short slice identifier SSI and the network slice selection auxiliary information nsai with a network side device, such as an access device (e.g., a gNB) or a core network device (e.g., an AMF), when the UE is in an IDLE state or an INACTIVE state, the UE can carry an SSI with a shorter length in an uplink signaling (e.g., a third type message MSG 3) to send the SSI to the network side device, so that the network side device can use the received SSI to perform access control for a network slice. Compared with the prior art, when the network slice is overloaded, the network side device can perform ACB on the network slice according to nsai carried by the MSG5 without waiting until the MSG5 is received, and can perform ACB on the network slice in advance. Not only reducing the consumption of signaling resources and avoiding the waste of signaling resources between the UE and the network side, but also reducing the time delay for controlling the access to the network slice.
For the technical solution shown in fig. 2, in a specific implementation process, the network side device may include a radio access network device, such as a gNB; core network devices, such as AMFs, may also be included; thus, the uplink signaling may include RRC signaling or NAS signaling. Specifically, when the UE is in an IDLE state or an INACTIVE state, access control is performed by the gNB, so the uplink signaling may specifically be RRC signaling, including MSG3 or a fifth type message (MSG 5) or other RRC messages; when the AMF performs access control, the uplink signaling may be NAS signaling.
In a possible implementation manner of the solution shown in fig. 2, preferably, for the UE and the network side device in step S201, establishing a mapping relationship between the short slice identifier SSI and the network slice selection assistance information nsai may include:
the UE sends a registration request to the network equipment; the registration request comprises network slice information to be registered;
the UE receives a registration response message returned by the network side equipment aiming at the network slice information to be registered in the registration request; wherein the registration reply message includes a mapping relationship between NSSAI and SSI of the network slice to be registered.
Through the above preferred implementation manner, the network side device may establish a correspondence between nsai and SSI according to network slice information that the terminal desires to register, and return the correspondence to the UE. The same mapping relation between SSI and NSSAI is established on the UE side and the network side, so that when the UE indicates the target network slice through the SSI, the network side equipment can acquire the target network slice through the uplink signaling carrying the SSI, and access control is performed according to the load condition of the target network slice.
In addition, after the UE learns the mapping relationship between the short slice identifier SSI and nsai, the UE may further perform access control on the target network slice indicated by the SSI by determining whether to send the uplink signaling carrying the SSI based on the SSI of the target network slice.
For example, after generating the MSG3 carrying the SSI of the target network slice, the UE may access control the target network slice by determining whether to send uplink signaling by the SSI of the target network slice. For example, the UE may decide whether to transmit the MSG3 carrying the SSI according to the priority of the SSI, and then according to a probability, which is related to the corresponding access type.
Based on the same inventive concept as the technical scheme shown in fig. 2, referring to fig. 3, a method for access control provided by the embodiment of the present invention is shown, and the method can be applied to network side devices. It may be appreciated that the network side device may include a radio access network device, such as a gNB; core network devices, such as AMFs, may also be included; the method may include:
s301: the method comprises the steps that a mapping relation between a short slice identifier (SSI, shortened Slice Index) and network slice selection auxiliary information NSSAI is established between network side equipment and UE; wherein, the short slice identifier SSI and the network slice selection auxiliary information NSSAI with the mapping relation both indicate the same network slice; and the SSI is shorter in length than the NSSAI;
s302: the network side equipment receives an uplink signaling carrying SSI sent by UE;
s303: and the network side equipment performs access control according to a set access control strategy aiming at the network slice indicated by the SSI carried in the uplink signaling.
Based on the technical scheme shown in fig. 3, after the network side device establishes a mapping relationship between the short slice identifier SSI and the network slice selection auxiliary information nsai with the UE, the network side device uses the received uplink signaling carrying the SSI to perform access control on the network slice. Compared with the prior art, when the network slice is overloaded, the network side device can perform ACB on the network slice according to nsai carried by the MSG5 without waiting until the MSG5 is received, and can perform ACB on the network slice in advance. Not only reducing the consumption of signaling resources and avoiding the waste of signaling resources between the UE and the network side, but also reducing the time delay for controlling the access to the network slice.
As the network side equipment can comprise wireless access network equipment, such as gNB; core network devices, such as AMFs, may also be included; thus, the uplink signaling may include RRC signaling or NAS signaling. Specifically, when the UE is in an IDLE state or an INACTIVE state, access control is performed by the gNB, so the uplink signaling may specifically be RRC signaling, including either MSG3 or a fifth type message (MSG 5) or other RRC messages; when the AMF performs access control, the uplink signaling may be NAS signaling.
In a possible implementation manner of the solution shown in fig. 3, preferably, for establishing, by the network side device and the UE in step S301, a mapping relationship between the SSI and the network slice selection assistance information NSSAI may include:
network side equipment receives a registration request sent by UE; the registration request comprises network slice information to be registered;
the network side equipment generates a mapping relation between NSSAI and SSI of the network slice to be registered aiming at the network slice information to be registered in the registration request;
the network side equipment sends a registration response message to the UE; wherein the registration reply message includes a mapping relationship between NSSAI and SSI of the network slice to be registered.
Through the above preferred implementation manner, the network side device may establish a correspondence between nsai and SSI according to network slice information that the terminal desires to register, and return the correspondence to the UE. The same mapping relation between SSI and NSSAI is established on the UE side and the network side, so that when the subsequent UE indicates the target network slice through the SSI, the network side equipment can acquire the target network slice through the uplink signaling carrying the SSI, and access control is performed according to the load condition of the target network slice.
In a possible implementation manner of the solution shown in fig. 3, preferably, the network side device performs access control according to a set access control policy for a network slice indicated by an SSI carried in the uplink signaling, including:
the network side equipment performs access control on the network slice indicated by the SSI based on the load condition of the network slice indicated by the SSI;
or the network side equipment performs access control on the network slice indicated by the SSI by determining whether to receive the uplink signaling based on the priority of the SSI.
Specifically, after knowing the indicated network slice according to the SSI, the network side device may control whether the UE can access according to the load of the network slice. In detail, the network side device may set a load threshold for indicating overload (overload) for a load situation; releasing (release) access of the UE in response to the load of the network slice exceeding the load threshold; the load corresponding to the network slice does not exceed the load threshold, allowing the UE to access the network slice.
Based on the same inventive concept as the technical solutions shown in fig. 2 and fig. 3, referring to fig. 4, a specific flow of access control provided by the embodiment of the present invention is shown, where the flow may be applied to the network architecture shown in fig. 1, and it may be understood that, for the radio access network RAN device and the 5G core network device in the architecture shown in fig. 1, the technical solution shown in fig. 4 is replaced by a network side device, which is not described in detail later; the process may include:
s401: the method comprises the steps that a mapping relation between SSI and NSSAI is established between network side equipment and UE;
s402: the network equipment informs the UE of the mapping relation between the SSI and NSSAI which are applicable in the AS or NAS;
s403: the UE loads the SSI of the target network slice in the uplink signaling based on the mapping relation;
s404: the UE generates an uplink signaling with SSI of a target network slice;
s405: the UE performs access control on the network slice indicated by the SSI by determining whether to send uplink signaling carrying the SSI of the target network slice based on the SSI of the target network slice;
s406: the UE determines to send an uplink signaling carrying SSI of a target network slice to network side equipment;
s407: and the network side equipment performs access control according to the load condition aiming at the network slice indicated by the SSI carried in the uplink signaling.
Specifically, the network side device performs access control on the network slice indicated by the SSI based on the load condition of the network slice indicated by the SSI;
or the network side equipment performs access control on the network slice indicated by the SSI by determining whether to receive the uplink signaling based on the priority of the SSI.
As to the technical solution shown in fig. 4, it can be known in combination with the foregoing technical solution that the uplink signaling may include RRC signaling or NAS signaling. Taking the network side device as the gNB as an example, the uplink signaling may specifically include MSG3. Therefore, the network side equipment can perform ACB on the network slice according to NSSAI carried by the MSG5 without waiting until the MSG5 is received, and can perform ACB on the network slice in advance. Not only reducing the consumption of signaling resources and avoiding the waste of signaling resources between the UE and the network side, but also reducing the time delay for controlling the access to the network slice.
Based on the foregoing technical solution, referring to fig. 5, a composition of a UE50 according to an embodiment of the present invention is shown, including: a first setup section 501, a bearer section 502 and a transmission section 503; wherein,
the first establishing part 501 is configured to establish a mapping relationship between the short slice identifier SSI and the network slice selection auxiliary information nsai with the network side device; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
The bearing portion 502 is configured to bear the SSI of the target network slice in the uplink signaling based on the mapping relationship;
the transmitting section 503 is configured to transmit the uplink signaling carrying SSI of the target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI.
In the above solution, the uplink signaling may include radio resource control RRC signaling or non-access stratum NAS signaling.
In the above scheme, when the UE is in an IDLE state or an INACTIVE state, the RRC signaling includes a third type message (MSG 3) or a fifth type message (MSG 5) or other RRC messages.
In the above aspect, the first establishing part 501 is configured to:
sending a registration request to the network side equipment; the registration request comprises network slice information to be registered;
receiving a registration response message returned by the network side equipment aiming at the network slice information to be registered in the registration request; wherein the registration reply message includes a mapping relationship between NSSAI and SSI of the network slice to be registered.
In the above solution, the UE further includes a control section configured to perform access control for the network slice indicated by the SSI by determining whether to send the uplink signaling carrying the SSI, based on the SSI of the target network slice.
It will be appreciated that in this embodiment, a "part" may be a part of a circuit, a part of a processor, a part of a program or software, etc., and of course may be a unit, or a module may be non-modular.
In addition, each component in the present embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional modules.
The integrated units, if implemented in the form of software functional modules, may be stored in a computer-readable storage medium, if not sold or used as separate products, and based on such understanding, the technical solution of the present embodiment may be embodied essentially or partly in the form of a software product, which is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or processor to perform all or part of the steps of the method described in the present embodiment. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Accordingly, the present embodiment provides a computer storage medium storing an information transmission program which, when executed by at least one processor, implements the steps of the method described above with respect to fig. 2.
Based on the above-mentioned UE 50 and the computer storage medium, referring to fig. 6, a specific hardware structure of the UE 50 provided by an embodiment of the present invention may include: a first network interface 601, a first memory 602, and a first processor 603; the various components are coupled together by a bus system 604. It is understood that the bus system 604 is used to enable connected communications between these components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 604 in fig. 6. The first network interface 601 is configured to receive and send signals in a process of receiving and sending information with other external network elements;
a first memory 602 for storing a computer program capable of running on the first processor 603;
the first processor 603 is configured to execute, when the computer program is executed:
The UE and the network side equipment establish a mapping relation between a short slice identifier (SSI, shortened Slice Index) and network slice selection auxiliary information NSSAI; wherein, the short slice identifier SSI and the network slice selection auxiliary information NSSAI with the mapping relation both indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the UE loads the SSI of the target network slice in the uplink signaling based on the mapping relation;
the UE sends an uplink signaling carrying SSI of a target network slice; the uplink signaling is used for the network side equipment to perform access control on the target network slice based on the SSI.
It will be appreciated that the first memory 602 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). The first memory 602 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
And the first processor 603 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in software form in the first processor 603. The first processor 603 described above may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the first memory 602, and the first processor 603 reads information in the first memory 602, and in combination with its hardware, performs the steps of the method described above.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Specifically, the first processor 603 in the UE 50 is further configured to execute the method steps described in the foregoing technical solution shown in fig. 2 when running the computer program, which is not described herein again.
Based on the foregoing technical solution, referring to fig. 7, there is shown a composition of a network device 70 provided in an embodiment of the present invention, including a second establishing part 701, a receiving part 702, and an access control part 703; wherein,
the second establishing part 701 is configured to establish a mapping relationship between the short slice identifier SSI and the network slice selection auxiliary information nsai with the UE; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the receiving section 702 is configured to receive an uplink signaling carrying SSI sent by the UE;
the access control portion 703 is configured to perform access control according to a set access control policy for a network slice indicated by the SSI carried in the uplink signaling.
In the above scheme, the uplink signaling may include RRC signaling or NAS signaling.
In the above aspect, the second establishing part 701 is configured to:
receiving a registration request sent by the UE; the registration request comprises network slice information to be registered;
generating a mapping relation between NSSAI and SSI of the network slice to be registered according to the network slice information to be registered in the registration request;
Transmitting a registration response message to the UE; wherein the registration reply message includes a mapping relationship between NSSAI and SSI of the network slice to be registered.
In the above aspect, the access control section 703 is configured to:
performing access control on the network slice indicated by the SSI based on the load condition of the network slice indicated by the SSI;
or based on the priority of the SSI, performing access control on the network slice indicated by the SSI by determining whether to receive the uplink signaling.
In the above aspect, the access control section 703 is configured to:
acquiring the load condition of the network slice after acquiring the indicated network slice according to the SSI;
releasing the access of the UE corresponding to the load of the network slice exceeding a set load threshold;
the load corresponding to the network slice does not exceed the load threshold, allowing the UE to access the network slice.
In addition, the present embodiment provides a computer storage medium storing an information transmission program that when executed by at least one processor implements the steps of the method described in the second embodiment. For a specific description of the computer storage medium, refer to the description in the third embodiment, and are not described herein.
Based on the above network device 70 and the computer storage medium, referring to fig. 8, a specific hardware structure of the network device 70 provided by an embodiment of the present invention may include: a second network interface 801, a second memory 802, and a second processor 803; the various components are coupled together by a bus system 804. It is to be appreciated that the bus system 804 is employed to enable connected communications between these components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 804 in fig. 8. Wherein,
the second network interface 801 is configured to receive and send signals during the process of receiving and sending information with other external network elements;
a second memory 802 for storing a computer program capable of running on the second processor 803;
a second processor 803 for executing, when running the computer program:
the method comprises the steps that a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI is established between network side equipment and UE; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
The network side equipment receives an uplink signaling carrying SSI sent by the UE;
and the network side equipment performs access control according to a set access control strategy aiming at the network slice indicated by the SSI carried in the uplink signaling.
It should be understood that, in this embodiment, the components in the specific hardware structure of the network device 70 are similar to those in fig. 6, and are not described herein.
Specifically, the second processor 803 in the network device 70 is further configured to execute the method steps described in the foregoing technical solution shown in fig. 3 when running the computer program, which is not described herein again.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (16)
1. A method of access control, the method comprising:
the User Equipment (UE) receives a mapping relation between a Short Slice Identifier (SSI) and Network Slice Selection Auxiliary Information (NSSAI) sent by network side equipment; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the UE sends uplink signaling carrying SSI to the network side equipment, wherein the SSI is used for indicating a target network slice which the UE requests to access;
Before the UE receives a mapping relationship between a short slice identifier SSI and network slice selection auxiliary information nsai sent by a network side device, the UE sends a registration request to the network side device, where the registration request includes network slice information to be registered.
2. The method of claim 1, wherein the uplink signaling comprises radio resource control, RRC, signaling or non-access stratum, NAS, signaling.
3. The method of claim 1, wherein the method further comprises:
the UE determines to request access control for the target network slice based on the SSI of the target network slice.
4. The method of claim 1, wherein a mapping relationship between the short slice identity SSI and network slice selection assistance information nsai is carried in a registration reply message.
5. A method of access control, the method comprising:
the network equipment sends a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI to User Equipment (UE); wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the network side equipment receives an uplink signaling carrying SSI sent by the UE, wherein the SSI is used for indicating a target network slice to which the UE requests to access;
Before the network side device sends a mapping relation between a short slice identifier SSI and network slice selection auxiliary information nsai, the network side device receives a registration request sent by the UE, where the registration request includes network slice information to be registered.
6. The method of claim 5, wherein the uplink signaling comprises RRC signaling or NAS signaling.
7. The method of claim 5, wherein the method further comprises:
the network side equipment generates a mapping relation between NSSAI and SSI of the network slice to be registered aiming at the network slice information to be registered in the registration request.
8. The method of claim 5, wherein the method further comprises:
the network side equipment performs access control on the network slice indicated by the SSI based on the load condition of the target network slice indicated by the SSI;
or the network side equipment performs access control on the network slice indicated by the SSI by determining whether to receive the uplink signaling based on the priority of the SSI.
9. A user equipment, UE, comprising: a first setting-up section and a transmitting section; wherein,
The first establishing part is configured to receive a mapping relation between a short slice identifier SSI and network slice selection auxiliary information NSSAI sent by network side equipment; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
the first establishing part is further configured to send a registration request to the network side device before receiving the mapping relationship between the short slice identifier SSI and the network slice selection auxiliary information nsai sent by the network side device, where the registration request includes network slice information to be registered;
the sending part is configured to send uplink signaling carrying SSI to the network side equipment, where the SSI is used to indicate the UE to request the target network slice to be accessed.
10. The UE of claim 9, wherein a mapping relationship between the short slice identity SSI and network slice selection assistance information nsai is carried in a registration reply message.
11. A network device comprising a second setup portion and a receive portion; wherein,
the second establishing part is configured to send a mapping relation between the short slice identifier SSI and the network slice selection auxiliary information NSSAI to the user equipment UE; wherein, the SSI and NSSAI with mapping relation indicate the same network slice; and the SSI is shorter in length than the NSSAI;
The receiving part is configured to receive an uplink signaling carrying an SSI sent by the UE, where the SSI is used to indicate a target network slice to which the UE requests access;
the second establishing part is further configured to receive a registration request sent by the UE before sending the mapping relationship between SSI and nsai, where the registration request includes network slice information to be registered.
12. The network device of claim 11, wherein the network device generates a mapping relationship between nsais and SSIs of network slices to be registered for network slice information to be registered in the registration request.
13. The network device of claim 11, wherein the network device further comprises: an access control section configured to:
performing access control on the network slice indicated by the SSI based on the load condition of the target network slice indicated by the SSI;
or based on the priority of the SSI, performing access control on the network slice indicated by the SSI by determining whether to receive the uplink signaling.
14. A user equipment, comprising: a first network interface, a first memory and a first processor; the first network interface is used for receiving and transmitting signals in the process of receiving and transmitting information with other external network elements;
The first memory is used for storing a computer program capable of running on the first processor;
the first processor being adapted to perform the steps of the method of any of claims 1 to 4 when the computer program is run.
15. A network device comprising a second network interface, a second memory, and a second processor;
the second network interface is used for receiving and transmitting signals in the process of receiving and transmitting information with other external network elements;
the second memory is used for storing a computer program capable of running on the second processor;
the second processor being adapted to perform the steps of the method of any of claims 5 to 8 when the computer program is run.
16. A computer storage medium storing an information transmission program which, when executed by at least one processor, carries out the steps of the method of any one of claims 1 to 4 or any one of claims 5 to 8.
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| CN202010787409.8A CN112020121B (en) | 2018-01-19 | 2018-01-19 | Access control method, equipment and computer storage medium |
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| CN115004788A (en) * | 2020-05-07 | 2022-09-02 | Oppo广东移动通信有限公司 | Information sending and receiving method, terminal and network equipment |
| CN116347651A (en) * | 2020-07-03 | 2023-06-27 | Oppo广东移动通信有限公司 | Wireless communication method, terminal device and network device |
| CN115486130A (en) * | 2020-07-09 | 2022-12-16 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
| CN115606247A (en) * | 2020-07-27 | 2023-01-13 | Oppo广东移动通信有限公司（Cn） | Wireless communication method and apparatus |
| CN114071576A (en) * | 2020-07-28 | 2022-02-18 | 中国联合网络通信集团有限公司 | Network slice selection method, system, computer device and storage medium |
| CN114389943B (en) * | 2020-10-22 | 2023-08-15 | 中移(成都)信息通信科技有限公司 | Network configuration method, device, equipment and computer storage medium |
| CN114760663A (en) * | 2020-12-28 | 2022-07-15 | 中国移动通信有限公司研究院 | Information transmission method, device, related equipment and storage medium |
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