CN114630345A - Access network, communication system, service providing method and storage medium - Google Patents
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Abstract
The invention discloses an access network, a communication system, a service providing method and a storage medium, comprising: the access network is based on a service architecture and comprises at least one access network function module, wherein: each access network function module is interconnected with each core network function module through a service interface, and the core network is based on a service architecture and comprises at least one core network function module; and the access network functional module is used for performing information interaction with one or more corresponding core network functional modules after the core network is determined according to the service requirement. A communication system includes: the core network based on the service architecture, the access network and the core network function module are used for carrying out information interaction with one or more access network function modules determined according to service requirements. By adopting the invention, unnecessary signaling interaction flow can be avoided, thereby reducing communication time delay and reducing data processing time delay.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an access network, a communication system, a service providing method, and a storage medium.
Background
The traditional network elements have fixed communication interfaces and communication paths, which results in complex communication flow. Considering that the transmission delay is increased by about 10-20ms every time data is forwarded through one network element, the transmission delay caused by a complex communication flow cannot meet the strict delay requirement of the vertical industry on positioning.
For the communication between the base station and the core network, the adoption of the existing communication architecture leads to complex communication flow and larger time delay.
Disclosure of Invention
The invention provides an access network, a communication system, a service providing method and a storage medium, which are used for reducing time delay in the service providing process.
The invention provides the following technical scheme:
an access network, comprising:
the access network comprises at least one access network function module, wherein:
the access network function module and the core network function module are interconnected through a service interface, and the core network comprises at least one core network function module;
the access network function module performs information interaction with one or more corresponding core network function modules;
the access network and the core network are based on a service-oriented architecture.
In implementation, the access network function module is further configured to perform information interaction with one or more core network function modules after the determined service requirements are met by the core network function module.
In an implementation, the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
In implementation, the access network function module is one or a combination of the following function modules:
a connection and mobility management function module, a cell group management function module, a session management function module, a cell group execution entity module, a session execution entity module and a user plane execution entity module.
In implementation, the connection and mobility management function module is configured to send configuration information to the UE, provide a UE cell-level location estimate, and provide a measurement result;
the cell group management function module comprises: an access point group management unit and/or a time-frequency resource allocation management unit, wherein:
the access point group management unit is used for determining a group of access points serving the UE according to the user and/or determining a group of access points serving the UE according to the area;
the time-frequency resource allocation management unit is used for stipulating corresponding resource allocation rules when different channel qualities and/or different service quality QoS requirements are met;
the session management function module is used for generating configuration information related to the load bearing;
the cell group execution entity module is used for executing the control instruction issued by the cell group management function;
the session execution entity module is used for executing the control instruction issued by the session management function;
and the user plane execution entity module is used for finishing the user plane data transmission.
A core network, comprising:
the core network function module and the access network function module are interconnected through a service interface;
the core network function module is used for carrying out information interaction with one or more access network function modules;
the core network and the access network are based on a service architecture.
In implementation, the core network function module is further configured to perform information interaction with one or more access network function modules determined according to service requirements.
In an implementation, the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
A communication system, comprising: the core network, and the access network.
In an implementation, the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
A service providing method of the communication system includes:
receiving a service request;
the core network function module determines one or more access network function modules according to the service request; or the access network function module determines one or more corresponding access network function modules for providing service requirements according to the service request;
and each access network function module and each core network function module carry out information interaction according to service requirements so as to provide services.
In implementation, the service request is a location service request;
the core network function module is LMF;
the access network function module is one or the combination of the following modules: AMM, CGM, UPE.
In the implementation, if the positioning method is network-assisted GNSS positioning, the LMF and AMM or UPE communicate to perform information interaction;
if the positioning method is OTDOA or UTDOA positioning, the LMF and the CGM carry out information interaction;
if the positioning method is the method for enhancing the cell ID, the LMF and the AMM are communicated to carry out information interaction;
if the positioning method is WLAN positioning or Bluetooth positioning or sensor-based positioning, the LMF and the AMM or the UPE carry out information interaction;
and if the positioning method is SUPL, the LMF and the UPE communicate to carry out information interaction.
In the implementation, the service request is a multicast broadcast service request;
the core network functional module is BM-SC;
the access network function module is one or the combination of the following modules: RSM, CGM, AMM.
In implementation, BM-SC sends a message carrying at least multicast or broadcast QoS requirements to RSM;
the BM-SC sends a message to the CGM carrying at least the multicast or broadcast area requirements and/or the multicast or broadcast frequency resource requirements.
A computer-readable storage medium storing a computer program for executing the service providing method described above.
The invention has the following beneficial effects:
in the technical solution provided in the embodiment of the present invention, an access network is based on a service architecture and includes at least one access network function module, and a core network is also based on a service architecture and includes at least one core network function module, and after receiving a service request, an access network function module and a core network function module related to service provision can be determined according to a service requirement, and since each access network function module is interconnected with each core network function module through a service interface, each access network function module and each core network function module can perform information interaction according to the service requirement to provide services. It can be seen that, because the connection between the access network and the core network functional module is opened through the service interface, the access network can directly communicate with the relevant core network node, thereby overcoming the defects that the traditional network elements have fixed communication interfaces and communication paths, and the interfaces are not defined between any two network elements, avoiding unnecessary signaling interaction flow, and reducing communication delay.
Furthermore, the access network structure is further modularized, so that the processes which can be executed in series in the access network originally can be executed in parallel, and the data processing time delay is further reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of a communication system architecture in accordance with an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an implementation of a service providing method of a communication system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a positioning implementation process according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an implementation flow of a multicast broadcast service in the embodiment of the present invention.
Detailed Description
The inventor notices in the process of invention that:
in order to reduce the interface establishment process and reduce the interface protocol design work, a fixed communication interface and a communication path are arranged between the traditional network elements, and an interface is not defined between any two network elements, which results in complex communication flow and large time delay.
Taking the positioning process as an example, there is no direct interface between the gNB (NR node, NR NodeB; NR: 5G New Radio) and the LMF (Location Management Function), and the Location estimation needs to be transferred through the AMF (Access and Mobility Management Function), which results in a longer time delay for obtaining the Location estimation.
Taking an example that an LCS (LoCation Services) client initiates a target UE (User Equipment) positioning request, a UE positioning request message reaches an LMF through an AMF (advanced metering framework), the LMF needs to negotiate measurement related configuration with a gNB through the AMF, the LMF forwards configuration information to the UE through the AMF and the gNB for measurement, the UE reports a measurement result to the LMF through the gNB and the AMF, and the LMF returns a position estimation to the LCS client after calculation.
The traditional network elements have fixed communication interfaces and communication paths, which results in complex communication flow. Although the core network has simplified the interaction flow inside the core network through the service design, the interaction between the base station and the network elements of the core network still needs to pass through the AMF, and the relevant information is forwarded to other network elements of the core network by the AMF, or other network elements of the core network still need to communicate with the base station through the AMF.
Considering that the transmission delay is increased by 10-20ms every time data is forwarded through one network element, the transmission delay caused by a complex communication flow cannot meet the strict delay requirement of the vertical industry on positioning. For example, the positioning acquisition delay is required to be less than 500ms in the vertical industries such as the internet of vehicles and intelligent factories, and the positioning acquisition delay includes the essential measurement time overhead and the position calculation time overhead in addition to the delay caused by the communication flow.
Based on this, in order to reduce the communication delay between the base station and the core network element, the invention provides a communication scheme in which the connection between the base station and the core network element is opened through a service interface, so that the base station can directly communicate with the relevant core network node, and an unnecessary signaling interaction process is avoided, thereby reducing the communication delay. In addition, the structure of the base station is further modularized, so that the processes sequentially executed in the original base station can be executed in parallel, and the data processing time delay is further reduced.
The following describes embodiments of the present invention with reference to the drawings.
In the description process, the description of the implementation of the access network and the core network will be referred to, and an example of the implementation of the two will be given to better understand the implementation of the scheme provided in the embodiment of the present invention. Such a description does not mean that the two must be implemented together or separately, and actually, when the access network and the core network are implemented separately, each of them also solves the problem on its own side, and when the two are used in combination, a better technical effect is obtained.
Fig. 1 is a schematic diagram of a communication system architecture, in which an access network function module is illustrated by a control plane function and a user plane function, and a core network function module is illustrated by a core network control plane function and a core network user plane function, respectively, as shown in the figure, the communication system architecture includes: a core network based on a service architecture comprising at least one core network function module, and an access network, wherein:
and the core network function module is used for carrying out information interaction with one or more access network function modules determined according to the service requirements.
The access network comprises at least one access network function module, wherein:
the access network function module and the core network function module are interconnected through a service interface, and the core network comprises at least one core network function module;
the access network function module performs information interaction with one or more corresponding core network function modules;
the access network and the core network are based on a service-oriented architecture.
Specifically, the access network is based on a service architecture and includes at least one access network function module, where:
each access network function module is interconnected with each core network function module through a service interface, and the core network is a core network based on a service architecture and comprises at least one core network function module;
and the access network functional module is used for performing information interaction with one or more corresponding core network functional modules after the core network is determined according to the service requirement.
Specifically, the access network structure is further modularized, so that the processes executed sequentially in the access network originally can be executed in parallel, and the data processing time delay is further reduced.
A communication network implementation based on the wireless network architecture shown in fig. 1 is described below.
The core network function may communicate with at least two access network functions simultaneously, the selection of the access network function being determined by the core network function based on service requirements.
In an implementation, the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
Specifically, the service requirement may be one or a combination of the following: positioning accuracy requirements, positioning period, positioning duration, positioning method, multicast or broadcast range requirements, multicast or broadcast reliability, multicast or broadcast frequency resource requirements, data transmission rate requirements, data transmission reliability requirements, data transmission delay requirements, and the like.
In implementation, the access network function module is one or a combination of the following function modules:
a connection and mobility management function module, a cell group management function module, a session management function module, a cell group execution entity module, a session execution entity module and a user plane execution entity module.
Specifically, the access network function includes at least one of the following: AMM (Access and Mobility Management), CGM (Cell Group Management), RSM (Session Management), CGE (Cell Group Entity), RSE (Session Entity, Radio Session Entity), UPE (User Plane Entity). The following is a detailed description:
1. the connection and mobility management function module is used for sending the configuration information to the UE, providing the cell-level position estimation of the UE and providing a measurement result;
specifically, the connection and mobility management functions include: and sending the configuration information to the UE through an RRC (Radio Resource Control) message, providing the UE cell level position estimation, and providing measurement results Of AOA (angle-Of-Arrival), TA (Timing Advance) and the like.
2. The cell group management function module comprises: an access point group management unit and/or a time-frequency resource allocation management unit, wherein:
the access point group management unit is used for determining a group of access points serving the UE according to the user and/or determining a group of access points serving the UE according to the area;
the time-frequency resource allocation management unit is used for stipulating corresponding resource allocation rules when different channel qualities and/or different service quality QoS requirements are met;
specifically, the cell group management function may include: and access point group management and time-frequency resource allocation management.
And (3) access point group management: it is determined which access points are grouped to serve a UE (user centric network) or which access points are grouped to serve UEs within a certain area (multicast broadcast, system information broadcast, etc.).
And (3) time-frequency resource allocation management: and (3) specifying corresponding resource allocation rules when different channel qualities and/or different Service Quality of Service (QoS) requirements are required. For example, for data on bearer 1, it needs to be transmitted on radio resources with channel quality higher than threshold 1, and the allocated resources must not be less than x bits.
3. The session management function module is used for generating configuration information related to the load bearing;
specifically, the session management function is configured to generate bearer-related configuration information, and includes: mapping between QoS Flow and Radio bearer, PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), MAC (Media Access Control), and other configuration parameters.
4. The cell group execution entity module is used for executing the control instruction issued by the cell group management function;
specifically, the cell group execution entity executes a control instruction issued by the cell group management function.
5. The session execution entity module is used for executing the control instruction issued by the session management function;
specifically, the session execution entity executes the control instruction issued by the session management function.
6. The user plane execution entity module is used for completing user plane data transmission;
specifically, the user plane execution entity completes the user plane data transmission.
The following describes an implementation of a communication system providing services.
Fig. 2 is a schematic flow chart of an implementation of a service providing method of a communication system, as shown in the figure, the method may include:
The following description will be made by taking a positioning service and a multicast broadcast service as examples.
Example one
The present example will be explained with a hybrid positioning procedure.
Hybrid positioning, i.e., a combination of multiple positioning techniques, is used to provide higher accuracy positioning. Available positioning methods include: network-assisted GNSS (Global Navigation Satellite System), OTDOA (Observed Time Difference Of Arrival) positioning, E-CID (Enhanced Cell ID-based positioning method), UTDOA (Uplink Time Difference Of Arrival) positioning, WLAN (Wireless Local Area Network) positioning, bluetooth positioning, sensor-based positioning, SUPL (Secure User Plane positioning), and the like.
In implementation, the service request is a location service request;
the core network function module is LMF;
the access network function module is one or the combination of the following modules: AMM, CGM, UPE.
In specific implementation, the following may be used:
if the positioning method is network-assisted GNSS positioning, the LMF and the AMM or UPE are communicated to carry out information interaction;
if the positioning method is OTDOA or UTDOA positioning, the LMF and the CGM carry out information interaction;
if the positioning method is a method for enhancing the cell ID, the LMF and the AMM are communicated to carry out information interaction;
if the positioning method is WLAN positioning or Bluetooth positioning or sensor-based positioning, the LMF and the AMM or the UPE carry out information interaction;
and if the positioning method is SUPL, the LMF and the UPE communicate to carry out information interaction.
Fig. 3 is a schematic diagram of a positioning implementation process, which may include:
step 301, receiving a location service request.
An LMF (Location Management Function) receives a Location request from a core network Function (such as an access and mobility Management Function, AMF), or a Location service client, or an access network Function, or a UE, where the request message carries a Location accuracy requirement, and may also carry information such as a cell ID where the UE is currently located, a Location time requirement, a Location method proposal, a Location period proposal, and the like;
and step 302, the LMF determines an adopted positioning method combination scheme based on the received information.
1) The adopted positioning methods are different, and the access network functions of LMFs needing communication are also different:
if the GNSS positioning is assisted by the network, the LMF needs to communicate with the AMM or UPE; that is, network-assisted GNSS assistance information needs to be sent to the UE via AMM or UPE.
If the location is OTDOA or UTDOA, the LMF needs to communicate with the CGM; that is, the transmission point or cell participating in the OTDOA or UTDOA positioning this time is determined by the CGM. For the OTDOA condition, the CGM needs to send the determination result to the UE through the AMM; for the UTDOA case, this step is not present.
If the method is an enhanced cell ID method (E-CID), the LMF needs to communicate with the AMM; that is, the LMF needs to inform the AMM whether it needs to assist in acquiring the TA and/or AOA.
If the LMF is WLAN positioning or Bluetooth positioning or sensor-based positioning, the LMF needs to communicate with the AMM or UPE; that is, WLAN positioning or bluetooth positioning or sensor-based positioning measurement configuration needs to be sent to the UE through AMM or UPE.
If the location is SUPL, the LMF needs to communicate with the UPE; that is, configuration information or assistance information of network assisted GNSS positioning, OTDOA or UTDOA positioning, E-CID, WLAN positioning, bluetooth positioning, sensor based positioning needs to be sent to the UE through UPE.
2) The requirements of positioning accuracy, positioning period, positioning duration and the like are different, and the determined positioning combination schemes are also different.
Step 303a, initiating a location measurement configuration (SUPL or WLAN or bluetooth or sensor or AGNSS) to the UPF;
step 303b, initiating positioning measurement configuration (OTDOA or UTDOA) to the CGM;
step 303c, initiate a positioning measurement configuration (E-CID or WLAN or bluetooth or sensor or AGNSS) to AMM.
Specifically, the LMF sends configuration information to the network function of the relevant access network based on the determined positioning method combination scheme. The configuration information may include requirements such as positioning accuracy, positioning period, positioning duration, and the like. The steps 303a, 303b and 303c may be initiated simultaneously as required, i.e. the LMF communicates with the AMM, CGM and UPE simultaneously.
Step 304, the UE or the LMF performs location estimation based on the measurement results.
And step 305, reporting the measurement result.
And step 306, position estimation is carried out.
Example two:
in this example, an implementation of an MBMS (Multimedia Broadcast/Multicast Service) Multicast Broadcast flow will be described.
In the implementation, the service request is a multicast broadcast service request;
the core network functional module is BM-SC;
the access network function module is one or the combination of the following modules: RSM, CGM, AMM.
In specific implementation, the following may be used:
BM-SC sends a message carrying at least multicast or broadcast QoS requirements to RSM;
the BM-SC sends a message to the CGM carrying at least the multicast or broadcast area requirements and/or the multicast or broadcast frequency resource requirements.
Fig. 4 is a schematic flow chart of an implementation of a multicast broadcast service, which may include:
step 1, the content provider sends a multicast broadcast service request to a multicast broadcast control node BM-SC.
The content provider sends a Multicast Broadcast service request to a Multicast Broadcast Control node BM-SC (Multicast Broadcast Control Function), where the request message may carry information about Multicast or Broadcast area requirements, Multicast or Broadcast QoS requirements (such as reliability requirements, transmission rate requirements, transmission delay requirements, etc.), Multicast or Broadcast frequency resource requirements, and the like.
BM-SC sends request message of multicast or broadcast service to function of access network based on request message of multicast broadcast service, and receives response message of these functions of access network.
The messages sent by the BM-SC to the RSM in steps 2a-2b at least carry multicast or broadcast QoS requirements (such as reliability requirements, transmission rate requirements, transmission delay requirements, etc.), and the RSM determines whether to start HARQ (Hybrid automatic repeat request) retransmission for multicast or broadcast, whether to start repeat transmission of data packets, whether to establish multiple data bearers for multicast or broadcast services, and whether to send the multicast or broadcast service data through multiple RSEs based on the requirements.
The message sent by the BM-SC to the CGM in steps 3a-3b at least carries multicast or broadcast area requirements (e.g. geographical location, mobility of UE, etc. that want to receive the multicast or broadcast service), multicast or broadcast frequency resource requirements, and the CGM determines the cell, frequency point, beam, BWP (partial Bandwidth, Bandwidth part) or periodic isochronous frequency resource, and Group RNTI (Group RNTI; Radio Network Temporary Identifier, Radio Network Temporary Identifier) for the multicast or broadcast based on the received message content.
Steps 2a-2b and steps 3a-3b may be performed simultaneously, as desired.
And 4, the BM-SC requests the AMM to send the final multicast or broadcast configuration information to the UE.
Step 5, the BM-SC requests the AMM to send the final multicast or broadcast configuration information to the content provider.
And 6, the AMM sends the final multicast or broadcast configuration information to the UE.
Step 7-step 10, MBMS data transmission.
In summary, the embodiments of the present invention provide a wireless network architecture, network functions, and related processes for operating the same.
In the scheme, the connection between the base station and the core network element is opened through the service interface, so that the base station can directly communicate with the relevant core network node, unnecessary signaling interaction processes are avoided, and the communication time delay is reduced. In addition, the structure of the base station is further modularized, so that the original serial execution flow in the base station can be executed in parallel, and the data processing time delay is further reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. An access network, comprising:
the access network comprises at least one access network function module, wherein:
the access network function module and the core network function module are interconnected through a service interface, and the core network comprises at least one core network function module;
the access network function module performs information interaction with one or more corresponding core network function modules;
the access network and the core network are based on a service-oriented architecture.
2. The access network of claim 1, wherein the access network function module is further configured to perform information interaction with one or more core network function modules after being determined by the core network function module according to the service requirement.
3. An access network as claimed in claim 2, wherein the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
4. The access network of claim 1, wherein the access network function module is one or a combination of the following:
a connection and mobility management function module AMM, a cell group management function module CGM, a session management function module RSM, a cell group execution entity module CGE, a session execution entity module RSE and a user plane execution entity module UPE.
5. The access network of claim 4,
the connection and mobility management function module is used for sending the configuration information to User Equipment (UE), providing UE cell level position estimation and providing a measurement result;
the cell group management function module comprises: an access point group management unit and/or a time-frequency resource allocation management unit, wherein:
the access point group management unit is used for determining a group of access points serving the UE according to the user and/or determining a group of access points serving the UE according to the area;
the time-frequency resource allocation management unit is used for stipulating corresponding resource allocation rules when different channel qualities and/or different service quality QoS requirements are met;
the session management function module is used for generating configuration information related to the load bearing;
the cell group execution entity module is used for executing the control instruction issued by the cell group management function;
the session execution entity module is used for executing the control instruction issued by the session management function;
and the user plane execution entity module is used for finishing the user plane data transmission.
6. A core network, comprising:
the core network function module and the access network function module are interconnected through a service interface;
the core network function module is used for carrying out information interaction with one or more access network function modules;
the core network and the access network are based on a service architecture.
7. The core network of claim 6, wherein the core network function module is further configured to perform information interaction with one or more access network function modules determined according to service requirements.
8. The core network of claim 6, wherein the service requirement is one or a combination of the following services:
positioning precision requirement service, positioning period service, positioning duration service, positioning method service, multicast or broadcast range requirement service, multicast or broadcast reliability service, multicast or broadcast frequency resource requirement service, data transmission rate requirement service, data transmission reliability requirement service and data transmission delay requirement service.
9. A communication system, comprising: an access network as claimed in any one of claims 1 to 5, and a core network as claimed in any one of claims 6 to 8.
10. A service providing method of a communication system according to claim 9, comprising:
receiving a service request;
the core network function module determines one or more access network function modules according to the service request; or the access network function module determines one or more corresponding access network function modules for providing service requirements according to the service request;
and each access network function module and each core network function module carry out information interaction according to service requirements so as to provide services.
11. The method of claim 10, wherein the service request is a location service request;
the core network function module is a positioning management function LMF;
the access network function module is one or the combination of the following modules: connection and mobility management AMM, cell group management CGM and user plane execution entity UPE.
12. The method of claim 11,
if the positioning method is network-assisted GNSS positioning, the LMF and AMM or UPE are communicated to carry out information interaction;
if the positioning method is OTDOA measurement by observing arrival time difference or UTDOA positioning by uplink arrival time difference, the LMF and the CGM carry out information interaction;
if the positioning method is a method for enhancing the cell identification ID, the LMF and the AMM are communicated to carry out information interaction;
if the positioning method is WLAN positioning or Bluetooth positioning or sensor-based positioning, the LMF and the AMM or the UPE carry out information interaction;
and if the positioning method is Secure User Plane Location (SUPL), the LMF and the UPE communicate to carry out information interaction.
13. The method of claim 10, wherein the service request is a multicast broadcast service request;
the core network function module is a multicast broadcast control function BM-SC;
the access network functional module is one or the combination of the following modules: RSM, CGM, AMM.
14. The method of claim 13,
BM-SC sends a message carrying at least multicast or broadcast QoS requirements to RSM;
the BM-SC sends a message to the CGM carrying at least the multicast or broadcast area requirements and/or the multicast or broadcast frequency resource requirements.
15. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any of claims 10 to 14.
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