CN114189922A

CN114189922A - Wireless slice receiving method and device, storage medium and electronic equipment

Info

Publication number: CN114189922A
Application number: CN202111490165.8A
Authority: CN
Inventors: 陈宇; 武巍; 王兵; 沈建军; 钱少波
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-03-15

Abstract

The disclosure provides a wireless slice receiving method, a wireless slice receiving device, a storage medium and electronic equipment, and relates to the technical field of communication. The problem that the terminal repeatedly establishes the session or fails in switching and drops the call when the slice below the coverage granularity of the tracking area is opened by network configuration in the related technology is solved. A related wireless slice receiving method comprises the following steps: acquiring slice identification information corresponding to each cell bound to each tracking area of the network side equipment in the process of establishing a chain with the network side equipment at the NG interface; and determining that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information accessed by the terminal and the slice identification information of the slice bound in the tracking area of the cell to which the terminal belongs. The embodiment of the disclosure realizes the admission and management of the network node to the base station/cell coverage granularity wireless slice, and meets the fine requirements of the slice service and the network operation.

Description

Wireless slice receiving method and device, storage medium and electronic equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a wireless slice receiving method and apparatus, a storage medium, and an electronic device.

Background

Currently, 5G (5th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology) network slice can achieve end-to-end logical isolation of core network to wireless network and network customization according to the needs of different tenants. At present, a tracking area is uniformly adopted by a 5GC (5G Core Network ), a RAN (Radio access Network), a UE (User Equipment), and a management domain as a minimum characterization granularity of a coverage area. However, such a characterization granularity cannot meet the refinement requirement of the actual service in the network operation process. For example, the coverage of the tracking area granularity cannot be accurately corresponded to the coverage of the slicing service such as the private network in practice. If the manual configuration instruction or the upper control instruction is carried out through the network manager according to the service requirement, the selective wireless slice opening configuration is carried out on the base station/cell in the tracking area range, and the situation that the terminal repeatedly carries out session establishment or call drop occurs in the switching process is possible to occur on the base station/cell which is not opened and configured with the wireless slice in the tracking area range.

Disclosure of Invention

The disclosure provides a wireless slice receiving method, a wireless slice receiving device, a storage medium and electronic equipment, which at least solve the problem that a terminal repeatedly establishes a session or fails in switching to drop a call when a slice below a coverage granularity of a tracking area is opened by network configuration in the related art to a certain extent.

According to a first aspect of the present disclosure, there is provided a wireless slice admission method comprising: in the process of NG interface link establishment between an access mobility management function (AMF) and network side equipment, the AMF acquires slice identification information corresponding to each cell bound to each tracking area of the network side equipment; the AMF determines that a base station of the terminal does not accept the slice identification information according to the allowed slice identification information accessed by the terminal and the slice identification information of the slice bound by the tracking area of the cell to which the terminal belongs, or sends the allowed slice identification information and the slice identification information to the terminal and the network side equipment, wherein the base station unacceptable slice identification information is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

Optionally, the obtaining, by the AMF, slice identification information corresponding to each cell bound to each tracking area of the network side device includes: and the AMF requests to acquire the slice identification information corresponding to each cell bound to each tracking area of the network side equipment by sending an NG interface establishment request message to the network side equipment.

Optionally, the slice identification information that is not received by the base station includes at least one piece of allowed network slice selection auxiliary information NSSAI, and the allowed slice identification information includes at least one piece of single network slice selection auxiliary information S-NSSAI.

Optionally, the determining, by the AMF, that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information includes: determining an intersection between the slice identification information of the slice bound to the tracking area of the cell to which the terminal belongs and the allowable slice identification information; and determining a complementary set of the intersection in the allowed slice identification information accessed by the terminal to obtain the slice identification information which is not accepted by the base station of the terminal.

Optionally, the method further includes: and after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, responding to a registration request message of the terminal, and sending the base station non-acceptance slice identification information to the terminal through a registration acceptance message by the AMF.

Optionally, the method further includes: after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, the AMF sends the base station not accepting the slice identification information to the network side equipment through a session establishment request, a cell handover request or an initial context establishment request.

Optionally, the method further includes: after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, the AMF sends a signaling to the network side equipment based on the session establishment request, the cell switching request or the initial context establishment request, and removes information corresponding to the slice which is not accepted by the base station from the signaling.

Optionally, the method further includes: when a cell switching request from a target terminal is obtained, the AMF judges whether the target terminal contains a slice corresponding to slice identification information which is not accepted by the base station; and releasing session resources of the slice corresponding to the slice identification information which is not accepted by the base station and is contained in the target terminal.

Optionally, the method further includes: after session resources of slices corresponding to the slice identification information which is not accepted by the base station and is contained in the target terminal are released, if the target terminal is switched to the target base station from the source base station, the slice identification information which is not accepted by the base station is sent to the target base station.

According to a second aspect of the present disclosure, there is provided a wireless slice admission method, comprising: in the process of NG interface link establishment between network side equipment and an access and mobility management function (AMF), the network side equipment sends slice identification information corresponding to each cell bound to each tracking area of the network side equipment to the AMF; and the network side equipment acquires the slice identification information which is not received by the base station from the AMF, wherein the slice identification information which is not received by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

Optionally, the method further includes: and after the network side equipment acquires the slice identification information which is not accepted by the base station from the AMF, the slice identification information which is not accepted by the base station is sent to a terminal.

Optionally, the obtaining, by the network side device, slice identifier information that is not received by the base station from the AMF includes: and the network side equipment acquires the slice identification information which is not received by the base station from the AMF through a session establishment request, a context establishment request or a cell switching request.

Optionally, the method further includes: after the network side equipment acquires the slice identification information which is not accepted by the base station from the AMF, responding to a registration request of a terminal, the network side equipment carries the slice identification information which is not accepted by the base station in a registration acceptance message and sends the registration acceptance message to the terminal, or the network side equipment sends the slice identification information which is not accepted by the base station to the terminal through Radio Resource Control (RRC) reconnection configuration information.

According to a third aspect of the present disclosure, there is provided a wireless slice admission method comprising: the terminal judges whether the identification information of the first slice corresponding to the initiated session establishment request is the identification of the slice information which is not accepted by the base station; and if the identification information of the first slice is the identification of the slice information which is not accepted by the base station, the terminal does not initiate a session establishment request in the first slice corresponding to the cell where the terminal resides, wherein the identification information of the slice which is not accepted by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

Optionally, the method further includes: after the terminal establishes a session, the terminal receives identification information of a second slice; and if the identification information of the second slice is that the base station does not accept the slice information identification, the terminal does not initiate a session establishment request in the second slice of the resident cell.

Optionally, the method further includes: the terminal initiates a cell switching request, and determines whether the identification information of the target slice indicated in the cell switching request is the identification information of the slice which is not accepted by the base station; and if the identification information of the target slice is that the base station does not accept the slice identification information, no session establishment request or registration request is initiated to the target slice.

Optionally, the method further includes: and in the process of registering the terminal to the network, receiving the slice identification information which is not received by the base station and is issued by the network side equipment or an access and mobility management function (AMF).

According to a fourth aspect of the present disclosure, there is provided a wireless slice receiving apparatus as an AMF entity or a chip built in the AMF entity, the apparatus comprising: the first acquisition module is used for acquiring slice identification information corresponding to each cell bound to each tracking area of the network side equipment in the process of NG interface link establishment with the network side equipment; the first determining module is configured to determine, according to allowed slice identification information accessed by a terminal and slice identification information of a slice bound in a tracking area of a cell to which the terminal belongs, that a base station of the terminal does not accept the slice identification information, or send the allowed slice identification information and the slice identification information to the terminal and the network side device, where the unacceptable slice identification information of the base station is used to represent a base station or a cell that is not slice bound in a coverage area of the tracking area.

According to a fifth aspect of the present disclosure, there is provided a wireless slice receiving apparatus as a network side device or a chip built in the network side device, the apparatus including: a first sending module, configured to send, to an access and mobility management function (AMF), slice identification information corresponding to each cell bound to each tracking area of the network side device to the AMF in a process of performing NG interface link establishment with the AMF; and a second obtaining module, configured to obtain, from the AMF, slice identifier information that is not accepted by the base station, where the slice identifier information that is not accepted by the base station is used to characterize a base station or a cell that is not slice-bonded within a coverage area of a tracking area.

According to a sixth aspect of the present disclosure, there is provided a wireless slice receiving apparatus as a terminal or a chip built in the terminal, the apparatus comprising: the first judgment module is used for judging whether the identification information of the first slice corresponding to the initiated session establishment request is the identification of the slice information which is not accepted by the base station; and a first session module, configured to, if the identification information of the first slice is that the base station does not accept a slice information identification, no session establishment request is initiated for the first slice corresponding to the cell where the terminal currently resides, where the identification information of the slice that is not accepted by the base station is used to represent the base station or the cell that is not slice-bound within a coverage area of a tracking area.

According to a seventh aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any one of the wireless slice admission methods provided by the embodiments of the present disclosure via execution of the executable instructions.

According to an eighth aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any one of the wireless slice admission methods provided by embodiments of the present disclosure.

In the wireless slice admission method, the wireless slice admission device, the storage medium and the electronic device according to one or more embodiments of the present disclosure, during the NG interface link establishment process, the AMF and the network side device acquire slice identification information corresponding to each cell bound to each tracking area of the network side device, and may obtain unacceptable slice identification information of a base station of the terminal by combining the allowable slice identification information accessed by the terminal and the slice identification information corresponding to each cell bound to each tracking area of the network side device, thereby implementing admission and management of the base station/cell coverage granularity wireless slice by the network node, and satisfying refinement requirements of slice service and network operation.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a flow diagram of a wireless slice acceptance method performed at an AFM end in accordance with one or more embodiments of the present disclosure;

fig. 2 is a flow diagram of a wireless slice acceptance method performed at an AFM end in accordance with one or more embodiments of the present disclosure;

fig. 3 is a flowchart of a wireless slice admission method performed at a network side device in accordance with one or more embodiments of the present disclosure;

fig. 4 is a flowchart of a wireless slice admission method performed at a network side device in accordance with one or more embodiments of the present disclosure;

fig. 5 is a flowchart of a wireless slice admission method performed at a terminal side according to one or more embodiments of the present disclosure;

fig. 6 is a flowchart of a wireless slice admission method performed at a terminal side according to one or more embodiments of the present disclosure;

fig. 7 is a schematic structural diagram illustrating a wireless slice receiving device in accordance with one or more embodiments of the present disclosure;

fig. 8 is a schematic structural diagram illustrating a wireless slice receiving device in accordance with one or more embodiments of the present disclosure;

fig. 9 is a schematic structural diagram illustrating a wireless slice receiving device in accordance with one or more embodiments of the present disclosure; and

fig. 10 is a schematic structural diagram of an electronic device according to one or more embodiments of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

Based on the problem that when the slice below the coverage granularity of the tracking area is configured and opened by the network, the terminal repeatedly establishes a session or fails in switching to cause call drop, the wireless slice configuration and opening of the base station/cell can be performed by using the tracking area as the minimum coverage granularity, but the coverage range of the tracking area granularity cannot accurately correspond to the coverage range of slice services such as private networks and the like, and the refinement requirements of the slice services and network operation cannot be met. Or the size of the tracking area can be adjusted according to the coverage range corresponding to the actual requirements of the slicing services such as private networks and the like, but the size will affect the planning and adjustment of the existing tracking area and cause a series of problems, and the method is also not suitable for the situation that the same base station/cell belongs to two private network services. Based on this, one or more embodiments of the present disclosure propose a wireless slice admission method.

Fig. 1 is a flowchart of a wireless slice admission method, which may be performed by an AMF, as shown in fig. 1, the method including:

step S102: in the process of performing NG interface link establishment between an AMF (Access and mobility Management Function) and a network side device, the AMF obtains slice identification information corresponding to each cell bound to each tracking area of the network side device;

the NG interface link establishment process refers to a process of establishing an NG interface, and the NG interface refers to an interface between a wireless access network and a 5G core network.

Optionally, the AMF may request the network side device to acquire slice identification information corresponding to each cell bound to each tracking area of the network side device, where the slice identification information may include a network slice identification type.

Alternatively, the Tracking Area Identity may be a TAI (Tracking Area Identity) or a TAC (Tracking Area Code). The identity of the Cell may be a Cell ID.

Step S104: and the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information of the slice bound by the tracking area of the cell to which the terminal belongs, or sends the allowed slice identification information and the slice identification information to the terminal and the network side equipment, wherein the base station unacceptable slice identification information is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

In the process that a terminal registers in a network, the AMF forms the identification information of the allowed slice accessed by the terminal;

optionally, the AMF may autonomously decide to form the Slice identifier information allowed to be accessed by the terminal, or the AMF may also form the Slice identifier information allowed to be accessed by the terminal through negotiation with an NSSF (Network Slice Selection Function).

Optionally, a network slice identifier type may be newly added in the existing network slice identifier type set, that is, the base station does not accept the slice identifier, so as to represent the base station or the cell that is not slice-bonded in the coverage area of the tracking area. Based on this, the global perception of base station/cell coverage granularity slice at UE, RAN, 5GC can be accomplished.

Optionally, the base station does not receive the slice identifier information, and information association needs to be performed between a certain network node, such as the UE, the gNB (5G base station, which is an example of the above network side device), the AMF, and the like, and a base station identifier (such as a gNB ID), a tracking area identifier (such as a TAC or a TAI), an intra-site Cell identifier (such as a Cell ID), and the like.

In the wireless slice admission method of one or more embodiments of the present disclosure, in the process of NG interface link establishment between the AMF and the network side device, slice identification information corresponding to each cell bound to each tracking area of the network side device is obtained, and then slice identification information that is not accepted by the base station of the terminal can be obtained by combining the allowed slice identification information accessed by the terminal and the slice identification information corresponding to each cell bound to each tracking area of the network side device, so that admission and management of wireless slices of base station/cell coverage granularity by the network node are realized, and the refinement requirements of slice service and network operation are met.

In one or more embodiments of the present disclosure, the obtaining, by the AMF, slice identification information corresponding to each cell bound to each tracking area of the network side device may include:

and the AMF requests to acquire the slice identification information corresponding to each cell bound to each tracking area of the network side equipment by sending an NG interface establishment request message to the network side equipment. Optionally, the NG interface establishment request message may include intra-station cell information to which the slice belongs.

In one or more embodiments of the present disclosure, the Slice identification Information that is not accepted by the base station may include at least one S-NSSAI (Single Network Slice Selection Assistance Information), for example, the Slice identification Information that is not accepted by the base station may be composed of one or more S-NSSAIs. The Allowed Slice identification Information may include at least one Allowed NSSAI (Network Slice Selection Assistance Information). For example, the Allowed slice identification information may be represented in the form of at least one Allowed NSSAI.

In one or more embodiments of the present disclosure, the determining, by the AMF, that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information may include:

determining an intersection between the slice identification information of the slice bound to the tracking area of the cell to which the terminal belongs and the allowable slice identification information;

and determining a complementary set of the intersection in the allowed slice identification information accessed by the terminal to obtain the slice identification information which is not accepted by the base station of the terminal.

Optionally, in one or more embodiments of the present disclosure, the slice identification information that is not accepted by the base station may be determined by the AMF, or may be executed by the network side device, or may also be executed by the terminal, and if the slice identification information is executed by the network side device or the terminal side, the AMF may send the identification information of the slice bound to the tracking area of the cell to which the terminal belongs and the slice identification information that is allowed to be accessed by the terminal to the network side device or the terminal, so that the network side device or the terminal may determine, based on the identification information of the slice bound to the tracking area of the cell to which the terminal belongs and the slice identification information that is allowed to be accessed by the terminal, that the base station of the terminal does not accept the slice identification information. Optionally, the network side device and the terminal may determine that the base station of the terminal does not receive the slice identification information in the same manner as the AMF side.

In one or more embodiments of the present disclosure, the wireless slice admission method may further include:

and after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, responding to a registration request message of the terminal, and sending the base station non-acceptance slice identification information to the terminal through a registration acceptance message by the AMF. For example, the AMF may send the slice identifier information that is not accepted by the base station to the terminal, carried in a registration accept message. In addition, as described above, the AMF may also directly transmit, to the terminal, the slice identification information of the slice allowed to be accessed by the terminal and the slice identification information of the slice bound to the tracking area of the cell to which the terminal belongs, and the terminal determines that the slice identification information is not accepted by the base station of the terminal.

and the AMF sends the slice identification information which is not accepted by the base station to the network side equipment through a session establishment request, a cell switching request or an initial context establishment request, wherein the session resource establishment request, the cell switching request or the initial context establishment request can be initiated by any terminal. Optionally, the AMF may carry the slice identifier information that is not received by the base station in the session establishment request, the cell handover request, or the initial context establishment request, and send the slice identifier information to the network side device.

In an embodiment of the present disclosure, the AMF removes, in the signaling, information corresponding to a slice that is not accepted by the base station, based on the signaling sent to the network side device by the session establishment request, the cell handover request, or the initial context establishment request. Optionally, the AMF may include a type of a network slice identifier in a signaling sent to the network side device based on the session establishment request, the cell handover request, or the initial context establishment request, where the type may be a base station acceptance type or a base station non-acceptance type. In this embodiment, information corresponding to a slice that is not accepted by the base station is removed from a signaling sent to the network side device, and then the slice identifier types involved in the signaling that the network side device can receive by default are all base station acceptance types.

In one or more embodiments of the present disclosure, the AMF may add, to the signaling sent to the network side device, the slice identifier that is not accepted by the base station and the corresponding session establishment request information.

when a cell switching request from a target terminal is obtained, the AMF judges whether the target terminal contains a slice corresponding to slice identification information which is not accepted by the base station;

in one embodiment, the AMF determining whether the hand-in terminal (i.e., the hand-in terminal) includes a slice corresponding to the slice identification information that is not accepted by the base station may include: determining the intersection of the binding slice identification information of the tracking area of the target cell (the cell into which the target terminal is switched) and the allowable slice identification information of the target terminal, solving the complement of the intersection in the allowable slice identification information of the target terminal to obtain the unacceptable slice identification information of the base station of the target terminal, and determining whether the target terminal contains the slice corresponding to the unacceptable slice identification information of the base station according to the unacceptable slice identification information of the base station of the target terminal.

And releasing session resources of the slice corresponding to the slice identification information which is not accepted by the base station and is contained in the target terminal.

Optionally, the AMF may actively release the session resource of the slice corresponding to the slice identification information that is not accepted by the base station and included in the target terminal, or the AMF may also release the session resource of the slice corresponding to the slice identification information that is not accepted by the base station and included in the terminal according to the request of the terminal.

after session resources of slices corresponding to the slice identification information which is not accepted by the base station and is contained in the target terminal are released, if the target terminal is switched to the target base station from the source base station, the slice identification information which is not accepted by the base station is sent to the target base station. It should be noted that there are two cases for the target terminal to perform cell handover: in this embodiment, if the base station where the target terminal resides after the switching is changed, the slice identification information that is not accepted by the base station may be sent to the target base station, and if the base station where the target terminal resides after the switching is not changed, the slice identification information that is not accepted by the base station does not need to be sent to the base station.

For example, a flowchart of a wireless slice admission method performed at the AMF end may be as shown in fig. 2.

Step S202: judging whether NG link establishment with the gNB is needed, if yes, jumping to the step S204, otherwise, jumping to the step S206;

step S204: acquiring slice identification information corresponding to each cell bound to each tracking area of the gNB through signaling, and jumping to step S206 after completion;

step S206: judging whether a terminal initiates a registration request, if so, jumping to step S208, otherwise, jumping to step S212;

step S208: when the allowed slice identification information accessed by the terminal is formed by negotiation/autonomous decision interaction with NSSF, the slice identification information acquired by NG link establishment is combined to form the slice identification information which is not received by the base station of the terminal, the slice identification information is marked and recorded, and the step S210 is skipped to after the marking is finished;

step S210: transmitting the slice identification information which is not received by the base station to the gNB and the terminal through a registration interaction signaling, and jumping to the step S212 after the completion;

step S212: judging whether a terminal initiates a session establishment request, if so, jumping to a step S214, otherwise, jumping to a step S216;

step S214: sending the slice identification information which is not received by the base station to the gNB in the session establishment interactive signaling, and jumping to the step S216 after the completion;

step S216: judging whether a terminal initiates switching, if so, jumping to the step S218, otherwise, jumping to the step S202;

step S218: judging whether the cut-in terminal contains the slice corresponding to the identification information of the slice which is not accepted by the base station, performing corresponding session resource release processing on the slice, further placing the identification information of the slice which is not accepted by the base station into a corresponding signaling to be transmitted to the cut-in base station, and jumping to the step S202 after the completion.

Fig. 3 is a flowchart of a wireless slice admission method, which may be performed by a network-side arrangement, as shown in fig. 3, according to one or more embodiments of the present disclosure, the method comprising:

step S302: in the process that network side equipment and AMF carry out NG interface link establishment, the network side equipment sends slice identification information corresponding to each cell bound to each tracking area of the network side equipment to the AMF;

optionally, the network side device may generate a slice identification device corresponding to each cell bound to each tracking area when performing NG interface link establishment with the AMF, and after receiving the NG interface establishment request sent by the AMF, the network side device may send slice identification information corresponding to each cell bound to each tracking area of the network side device to the AMF, and optionally, the NG interface establishment request sent by the AMF may include the cell information in the station described by the slice.

Step S304: and the network side equipment acquires the slice identification information which is not received by the base station from the AMF, wherein the slice identification information which is not received by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

and after the network side equipment acquires the slice identification information which is not accepted by the base station from the AMF, the slice identification information which is not accepted by the base station is sent to a terminal. Optionally, the network side device may send the slice identifier information that is not received by the base station to the terminal in a manner of issuing a signaling to the terminal.

In one or more embodiments of the present disclosure, the acquiring, by the network side device, slice identification information that is not accepted by the base station from the AMF may include:

and the network side equipment acquires the slice identification information which is not received by the base station from the AMF through a session establishment request, a context establishment request or a cell switching request. Wherein, the session establishment request, the cell switching request or the initial context establishment request can be initiated by any terminal. Optionally, the network side device may obtain, from a signaling sent by the received AMF based on the session establishment request, the cell handover request, or the initial context establishment request, the slice identification information that is not accepted by the base station.

after the network side device obtains the slice identifier information that is not received by the base station from the AMF, in response to a registration request of a terminal, the network side device carries the slice identifier information that is not received by the base station in a registration acceptance message and sends the slice identifier information to the terminal, or the network side device issues the slice identifier information that is not received by the base station to the terminal through RRC (Radio Resource Control) reconnection configuration information.

For example, a flowchart of a wireless slice admission method performed at the gbb end may be as shown in fig. 4.

Step S402: judging whether NG link establishment is required to be carried out with the AMF, if yes, jumping to the step S404, otherwise, jumping to the step S406;

step S404: generating slice identification information corresponding to each cell bound by each tracking area, transmitting the slice identification information to the AMF, and jumping to the step S406 after the generation is finished;

step S406: judging whether a terminal initiates a registration request, if so, jumping to a step S408, otherwise, jumping to a step S410;

step S408: acquiring the slice identification information which is not received by the base station from the AMF through registration interaction, transmitting the slice identification information to the terminal, and jumping to the step S410 after the slice identification information is completed;

step S410: judging whether a terminal initiates a session establishment request, if so, jumping to the step S412, otherwise, jumping to the step S414;

step S412: acquiring the identification information of the slice which is not received by the base station from the session establishment interaction with the AMF, transmitting the identification information to the terminal through a signaling, and jumping to the step S414 after the completion;

step S414: judging whether a terminal initiates switching to a cell of the station, if so, jumping to the step S416, otherwise, jumping to the step S402;

step S416: and sending the received or failed session information to the AMF according to the switching type initiated by the terminal, and further obtaining the slice identification information which is not received by the base station from the signaling acquired by the AMF. After obtaining the information, the AMF can perform core network data synchronization and perform operations such as session release on the corresponding slices; after completion, the process jumps to step S402.

Fig. 5 is a flowchart of a wireless slice admission method, which may be performed by a terminal, as shown in fig. 5, the method including:

step S502: the terminal judges whether the identification information of the first slice corresponding to the initiated session establishment request is the identification of the slice information which is not accepted by the base station;

step S504: and if the identification information of the first slice is the identification of the slice information which is not accepted by the base station, the terminal does not initiate a session establishment request in the first slice corresponding to the cell where the terminal resides, wherein the identification information of the slice which is not accepted by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

Optionally, if the identification information of the first slice is not the identification of the slice information that is not accepted by the base station, the terminal establishes a session for all slices.

after the terminal establishes a session, the terminal receives identification information of a second slice;

optionally, the identifier information of the second slice received by the terminal may be sent to the terminal by the network side device, or may be sent to the terminal by the AMF.

And if the identification information of the second slice is that the base station does not accept the slice information identification, the terminal does not initiate a session establishment request in the second slice of the resident cell.

the terminal initiates a cell switching request, and judges whether the identification information of the slice to be switched is the identification information of the slice which is not accepted by the base station according to the cell switching request;

and the slice to be switched is the target slice indicated in the cell switching request.

And if the identification information of the to-be-switched slice is that the base station does not receive the slice identification information, no session establishment request or registration request is initiated to the to-be-switched slice.

Optionally, the terminal may request, from the AMF or the network side device, to release the session resource of the slice corresponding to the slice identification information that is not accepted by the base station and included in the terminal.

and in the process of registering the terminal to the network, receiving the slice identification information which is not received by the base station and is issued by the network side equipment or the AMF. Optionally, after receiving the slice identification information that is not received by the base station issued by the network side device or the AMF, the terminal may mark and store the identification information of the corresponding slice.

For example, a flowchart of a wireless slice admission method performed at a UE (which is an example of the terminal) may be as shown in fig. 6.

Step S602: judging whether a registration request needs to be initiated, if so, jumping to a step S604, otherwise, jumping to a step S606;

step S604: judging whether a registration interaction process receives a slice information identifier which is not received by a base station issued by a gNB/AMF, marking and storing related information of the information identifier, and jumping to the step S606 after the information identifier is completed;

step S606: judging whether a session establishment request is initiated, if so, jumping to the step S608, otherwise, jumping to the step S616;

step S608: judging whether the registration initiated in the cell exists and the session establishment request has a slice corresponding to the slice information identifier which is not accepted by the base station, if so, skipping to the step S614, otherwise, skipping to the step S610;

step S610: establishing all slice sessions, and jumping to the step S612 after the establishment;

step S612: judging whether the terminal receives the slice identification information in the session establishment interaction process and judging whether the sent slice identification information is of a type which is not accepted by the base station, if so, skipping to the step S614, otherwise, skipping to the step S616;

step S614: no session establishment is initiated on the slice corresponding to the cell in the base station, and the step S616 is skipped;

step S616: judging whether a switching request is initiated, if so, jumping to a step S618, otherwise, jumping to a step S602;

step S618: judging whether the switching slice is of a type which is not accepted by the base station in the switching process, marking the slice information identification, not initiating a session request or registering in the target base station, performing session release related processing according to network signaling, and jumping to the step S602 after the session release related processing is completed.

Fig. 7 is a schematic structural diagram illustrating a wireless slice receiving apparatus as an AMF entity or a chip built in the AMF entity according to one or more embodiments of the present disclosure, where the apparatus 710 includes:

a first obtaining module 712, configured to obtain slice identifier information corresponding to each cell bound to each tracking area of a network-side device in a process of NG interface link establishment with the network-side device;

a first determining module 714, configured to determine, according to allowed slice identification information accessed by a terminal and slice identification information of a slice bound to a tracking area of a cell to which the terminal belongs, that a base station of the terminal does not accept the slice identification information, or send the allowed slice identification information and the slice identification information to the terminal and the network side device, where the base station unacceptable slice identification information is used to represent a base station or a cell that is not slice bound within a coverage area of the tracking area.

In one or more embodiments of the present disclosure, the first obtaining module may be specifically configured to: and requesting to acquire the slice identification information corresponding to each cell bound to each tracking area of the network side equipment by sending an NG interface establishment request message to the network side equipment.

In one or more embodiments of the present disclosure, the base station non-acceptance slice identification information may include at least one allowed network slice selection assistance information NSSAI, and the allowed slice identification information includes at least one single network slice selection assistance information S-NSSAI.

In one or more embodiments of the present disclosure, the first determining module is specifically operable to:

In one or more embodiments of the present disclosure, the apparatus may further include:

and a second sending module, configured to, after determining that the slice identification information is not accepted by the base station of the terminal according to the slice identification information allowed and the slice identification information, respond to a registration request message of the terminal, and send, by the AMF, the slice identification information that is not accepted by the base station to the terminal through a registration acceptance message.

In one or more embodiments of the present disclosure, the apparatus may further include: a third sending module, configured to send, after determining that the slice identification information is not accepted by the base station of the terminal according to the slice identification information allowed and the slice identification information, the slice identification information that is not accepted by the base station to the network side device through a session establishment request, a cell handover request, or an initial context establishment request.

In one or more embodiments of the present disclosure, the apparatus may further include: a fourth sending module, configured to, after determining that the slice identification information is not accepted by the base station of the terminal according to the slice identification information and the allowed slice identification information, send a signaling to the network side device based on the session establishment request, the cell handover request, or the initial context establishment request, and remove information corresponding to a slice that is not accepted by the base station in the signaling.

the second judging module is used for judging whether the target terminal comprises a slice corresponding to the slice identification information which is not accepted by the base station when the cell switching request from the target terminal is obtained;

and the release module is used for releasing the session resources of the slice which is contained in the target terminal and is not received by the base station and corresponds to the slice identification information.

a fifth sending module, configured to, after session resources of a slice corresponding to the slice identification information that is not accepted by the base station and included in the target terminal are released, send, if the target terminal is switched from the source base station to the target base station, the slice identification information that is not accepted by the base station to the target base station.

Fig. 8 is a schematic structural diagram of a wireless slice receiving apparatus according to one or more embodiments of the present disclosure, which may be a network side device or a chip built in the network side device, as shown in fig. 8, the apparatus 810 includes:

a first sending module 812, configured to send, to an access and mobility management function AMF, slice identification information corresponding to each cell bound to each tracking area of the network side device to the AMF in a process of NG interface link establishment with the AMF;

a second obtaining module 814, configured to obtain, from the AMF, slice identifier information that is not accepted by the base station, where the slice identifier information that is not accepted by the base station is used to characterize a base station or a cell that is not slice-bonded within a coverage area of a tracking area.

and a sixth sending module, configured to send the slice identifier information that is not accepted by the base station to the terminal after the slice identifier information that is not accepted by the base station is obtained from the AMF.

In one or more embodiments of the present disclosure, the second obtaining module may be configured to: and acquiring the slice identification information which is not accepted by the base station from the AMF through a session establishment request, a context establishment request or a cell switching request.

In one or more embodiments of the present disclosure, the apparatus may further include: a seventh sending module, configured to, in response to a registration request of a terminal after obtaining, from the AMF, that the slice identifier information that is not accepted by the base station, carry, by the network-side device, the slice identifier information that is not accepted by the base station in a registration acceptance message and send the registration acceptance message to the terminal, or send, by the network-side device, the slice identifier information that is not accepted by the base station to the terminal through radio resource control RRC reconnection configuration information.

Fig. 9 is a schematic structural diagram illustrating a wireless slice receiving apparatus according to one or more embodiments of the present disclosure, the apparatus may be a terminal or a chip built in the terminal, as shown in fig. 9, and the apparatus 910 may include:

a determining module 912, configured to determine whether the identifier of the first slice corresponding to the initiated session establishment request is an identifier of slice information that is not accepted by the base station;

a session module 914, configured to, if the identification information of the first slice is the slice information identification that is not accepted by the base station, no session establishment request is initiated any more for the first slice corresponding to the cell where the terminal currently resides, where the slice identification information that is not accepted by the base station is used to characterize a base station or a cell that is not slice-bound within a tracking area coverage.

the first receiving module is used for receiving the identification information of the second slice after the terminal establishes the session;

a second session module, configured to, if the identifier information of the second slice is that the base station does not accept the slice information identifier, no session establishment request is initiated in the second slice of the cell in which the terminal resides.

a second determining module, configured to initiate a cell switching request, and determine whether the identification information of the target slice indicated in the cell switching request is the identification information of a slice that is not accepted by the base station;

and the request module is used for not initiating a session establishment request or a registration request to the target slice if the identification information of the target slice is that the base station does not accept the slice identification information.

In one or more embodiments of the present disclosure, the apparatus may further include: and the second receiving module is configured to receive, in a process of registering the terminal in a network, the slice identifier information that is not accepted by the base station and is issued by the network side device or the AMF.

An electronic device 1000 according to this embodiment of the invention is described below with reference to fig. 10. The electronic device 1000 shown in fig. 10 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.

As shown in fig. 10, the electronic device 1000 is embodied in the form of a general purpose computing device. The components of the electronic device 1000 may include, but are not limited to: the at least one processing unit 1010, the at least one memory unit 1020, and a bus 1030 that couples various system components including the memory unit 1020 and the processing unit 1010.

Wherein the storage unit stores program code that may be executed by the electronic device 1000 to cause the electronic device 1000 to perform the steps according to various exemplary embodiments of the present invention described in the above section "exemplary method" of the present specification.

The storage unit 1020 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM)10201 and/or a cache memory unit 10202, and may further include a read-only memory unit (ROM) 10203.

The memory unit 1020 may also include a program/utility 10204 having a set (at least one) of program modules 10205, such program modules 10205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 1030 may be any one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, and a local bus using any of a variety of bus architectures.

The electronic device 1000 may also communicate with one or more external devices 1100 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 1000, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 1000 to communicate with one or more other computing devices. Such communication may occur through input/output (I/O) interfaces 1050. Also, the electronic device 1000 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the internet) via the network adapter 1060. As shown, the network adapter 1060 communicates with the other modules of the electronic device 1000 over the bus 1030. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the electronic device 1000, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the disclosure described in the "exemplary methods" section above of this specification, when the program product is run on the terminal device.

A program product for implementing the above method according to an embodiment of the present disclosure is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A wireless slice admission method, comprising:

in the process of NG interface link establishment between an access mobility management function (AMF) and network side equipment, the AMF acquires slice identification information corresponding to each cell bound to each tracking area of the network side equipment;

the AMF determines that a base station of the terminal does not accept the slice identification information according to the allowed slice identification information accessed by the terminal and the slice identification information of the slice bound by the tracking area of the cell to which the terminal belongs, or sends the allowed slice identification information and the slice identification information to the terminal and the network side equipment, wherein the base station unacceptable slice identification information is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

2. The method according to claim 1, wherein the AMF obtaining slice identification information corresponding to each cell bound to each tracking area of the network side device comprises:

and the AMF requests to acquire the slice identification information corresponding to each cell bound to each tracking area of the network side equipment by sending an NG interface establishment request message to the network side equipment.

3. The method according to claim 1, wherein the slice identification information not accepted by the base station comprises at least one allowed network slice selection assistance information NSSAI, and wherein the allowed slice identification information comprises at least one single network slice selection assistance information S-NSSAI.

4. The method of claim 1, wherein the AMF determining that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information comprises:

5. The method of claim 1, further comprising:

and after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, responding to a registration request message of the terminal, and sending the base station non-acceptance slice identification information to the terminal through a registration acceptance message by the AMF.

6. The method of claim 1, further comprising:

after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, the AMF sends the base station not accepting the slice identification information to the network side equipment through a session establishment request, a cell handover request or an initial context establishment request.

7. The method of claim 6, further comprising:

after the AMF determines that the base station of the terminal does not accept the slice identification information according to the allowed slice identification information and the slice identification information, the AMF sends a signaling to the network side equipment based on the session establishment request, the cell switching request or the initial context establishment request, and removes information corresponding to the slice which is not accepted by the base station from the signaling.

8. The method of claim 1, further comprising:

9. The method of claim 8, further comprising:

after session resources of slices corresponding to the slice identification information which is not accepted by the base station and is contained in the target terminal are released, if the target terminal is switched to the target base station from the source base station, the slice identification information which is not accepted by the base station is sent to the target base station.

10. A wireless slice admission method, comprising:

in the process of NG interface link establishment between network side equipment and an access and mobility management function (AMF), the network side equipment sends slice identification information corresponding to each cell bound to each tracking area of the network side equipment to the AMF;

and the network side equipment acquires the slice identification information which is not received by the base station from the AMF, wherein the slice identification information which is not received by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

11. The method of claim 10, further comprising:

and after the network side equipment acquires the slice identification information which is not accepted by the base station from the AMF, the slice identification information which is not accepted by the base station is sent to a terminal.

12. The method of claim 10, wherein the network side device obtaining, from the AMF, slice identification information that is not accepted by a base station, comprises:

and the network side equipment acquires the slice identification information which is not received by the base station from the AMF through a session establishment request, a context establishment request or a cell switching request.

13. The method according to any one of claims 10 to 12, further comprising:

after the network side equipment acquires the slice identification information which is not accepted by the base station from the AMF, responding to a registration request of a terminal, the network side equipment carries the slice identification information which is not accepted by the base station in a registration acceptance message and sends the registration acceptance message to the terminal, or the network side equipment sends the slice identification information which is not accepted by the base station to the terminal through Radio Resource Control (RRC) reconnection configuration information.

14. A wireless slice admission method, comprising:

the terminal judges whether the identification information of the first slice corresponding to the initiated session establishment request is the identification of the slice information which is not accepted by the base station;

and if the identification information of the first slice is the identification of the slice information which is not accepted by the base station, the terminal does not initiate a session establishment request in the first slice corresponding to the cell where the terminal resides, wherein the identification information of the slice which is not accepted by the base station is used for representing the base station or the cell which is not subjected to slice binding in the coverage area of the tracking area.

15. The method of claim 14, further comprising:

16. The method of claim 14, further comprising:

the terminal initiates a cell switching request, and determines whether the identification information of the target slice indicated in the cell switching request is the identification information of the slice which is not accepted by the base station;

and if the identification information of the target slice is that the base station does not accept the slice identification information, no session establishment request or registration request is initiated to the target slice.

17. The method according to any one of claims 14 to 16, further comprising:

and in the process of registering the terminal to the network, receiving the slice identification information which is not received by the base station and is issued by the network side equipment or an access and mobility management function (AMF).

18. A wireless slice admission device, wherein the device is implemented as an AMF entity or a chip built into the AMF entity, the device comprising:

the first acquisition module is used for acquiring slice identification information corresponding to each cell bound to each tracking area of the network side equipment in the process of NG interface link establishment with the network side equipment;

the first determining module is configured to determine, according to allowed slice identification information accessed by a terminal and slice identification information of a slice bound in a tracking area of a cell to which the terminal belongs, that a base station of the terminal does not accept the slice identification information, or send the allowed slice identification information and the slice identification information to the terminal and the network side device, where the unacceptable slice identification information of the base station is used to represent a base station or a cell that is not slice bound in a coverage area of the tracking area.

19. A wireless slice receiving device, wherein the device is a network side device or a chip built in the network side device, the device comprising:

a first sending module, configured to send, to an access and mobility management function (AMF), slice identification information corresponding to each cell bound to each tracking area of the network side device to the AMF in a process of performing NG interface link establishment with the AMF;

and a second obtaining module, configured to obtain, from the AMF, slice identifier information that is not accepted by the base station, where the slice identifier information that is not accepted by the base station is used to characterize a base station or a cell that is not slice-bonded within a coverage area of a tracking area.

20. A wireless chip receiving device, wherein the device is a terminal or a chip built in the terminal, the device comprising:

the first judgment module is used for judging whether the identification information of the first slice corresponding to the initiated session establishment request is the identification of the slice information which is not accepted by the base station;

and a first session module, configured to, if the identification information of the first slice is that the base station does not accept a slice information identification, no session establishment request is initiated for the first slice corresponding to the cell where the terminal currently resides, where the identification information of the slice that is not accepted by the base station is used to represent the base station or the cell that is not slice-bound within a coverage area of a tracking area.

21. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the wireless slice admission method of any of claims 1-17 via execution of the executable instructions.

22. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the wireless slice admission method according to any one of claims 1 to 17.