CN110366211B - RIM information sharing method, device, equipment and storage medium - Google Patents
RIM information sharing method, device, equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a method, a device, equipment and a storage medium for RIM information sharing, wherein the method comprises the following steps: directly acquiring RIM information of a target RNL slice from the source RNL slice; wherein the source RNL slice and the target RNL slice run on the same universal server platform. The embodiment of the invention operates the centralized units of different RAT on the general server in a slicing mode, and slices can be mutually sensed, so that under the condition that various RAT networks coexist and are covered together, the RIM information of a target RAT network does not need to be acquired through a core network, the load of each node on a path is reduced, the access speed among different networks is improved, and better mobility and access service can be provided for users.
Description
Technical Field
The present invention relates to the field of centralized control units (or centralized units) in a wireless communication network architecture, and in particular, to a method, an apparatus, a device, and a storage medium for Information sharing of a RAN (RAN Information Management) in a wireless communication network architecture.
Background
With the development of mobile communication technology, the user needs are various and different, and the user experience in the future is the interleaving and blending of multiple terminals, multiple applications and high bandwidth. It is predicted that future supported devices will be 10 to 100 times as many as current, both in number and in traffic rate, while the end-to-end delay for some low-delay ultra-reliable traffic requirements will be reduced to one fifth of the current. Therefore, network development requires higher bandwidth, lower delay, higher reliability and stronger intelligent capability, and the existing wireless communication technology is difficult to meet the requirement of overall service improvement in the future.
In the RAN (Radio Access Network) architecture, a distributed unit and a centralized unit are advanced architecture schemes, and a wireless protocol stack on the conventional RAN side is functionally divided to meet the increasing functional requirements of the Radio Access Network.
The architecture is convenient for realizing centralized control under dense networking and improving the cooperation gain among cells and the flexibility of deployment. The centralized unit processes RAN high-level Protocol stack functions, that is, most functions of an RNL (Radio Network Layer) Layer of the RAN, including RRC (Radio Resource Control), PDCP (Packet Data Convergence Protocol), RRM (Radio Resource Management), and the like, may be deployed in the centralized unit; the distributed unit handles lower layer functions. A centralized unit is a central control node, which is responsible for coordinating multiple radio technologies in a wireless communication network and for mobility management of UEs, and is an advantageous solution.
In this scheme, distributed units or base stations of different RATs (Radio Access technologies) are connected to a centralized unit of a corresponding RAT, and when a centralized unit of one RAT acquires RIM information to a centralized unit of another RAT, it needs to pass through respective core networks, that is, the RANs of different RATs acquire RIM information through the core networks, which increases the load of each node on a path and affects the processing of other functions.
Disclosure of Invention
The RIM information sharing method, the device, the equipment and the storage medium provided by the embodiment of the invention solve the problem that the load of each node on a path is increased due to the fact that the core network acquires the RIM information of a target RAT network under the scenes of coexistence and co-coverage of the RAT networks.
The method for sharing RIM information provided by the embodiment of the invention comprises the following steps:
directly acquiring RIM information of a target RNL slice from the source RNL slice;
wherein the source RNL slice and the target RNL slice run on the same general server platform, and the RNL is a radio network layer.
Preferably, the obtaining, by the source RNL slice, RIM information of the target RNL slice directly from the target RNL slice includes:
the source RNL slice sends a RIM request to the target RNL slice;
the source RNL slice receives the RIM information of the target RNL slice response.
Preferably, the obtaining, by the source RNL slice, RIM information of the target RNL slice directly from the target RNL slice includes:
the source RNL slice subscribes RIM information of the target RNL slice;
and the source RNL slice receives the RIM information issued by the target RNL slice.
Preferably, the obtaining, by the source RNL slice, RIM information of the target RNL slice directly from the target RNL slice includes:
if the source RNL slice determines that the RIM information to be pushed issued by the target RNL slice is the RIM information to be acquired, sending a subscription request to the target RNL slice;
and after the target RNL slice authenticates the source RNL slice according to the subscription request, the source RNL slice acquires the RIM information pushed by the target RNL slice.
The device for sharing RIM information provided by the embodiment of the invention comprises:
the apparatus is provided in a source RNL slice, comprising:
the information sharing module is used for directly acquiring the RIM information of the target RNL slice from the target RNL slice;
the source RNL slice and the target RNL slice run on the same general server platform, and the RNL is a radio network layer.
Preferably, the sharing module sends a RIM request to the target RNL slice and receives the RIM information of the target RNL slice response.
Preferably, the sharing module subscribes to RIM information of the target RNL slice and receives the RIM information published by the target RNL slice.
Preferably, when determining that the RIM information to be pushed issued by the target RNL slice is the RIM information to be acquired, the sharing module sends a subscription request to the target RNL slice, and acquires the RIM information pushed by the target RNL slice after the target RNL slice passes authentication on the source RNL slice according to the subscription request.
According to the embodiment of the invention, the RIM information sharing equipment comprises: a processor, and a memory coupled to the processor; the memory has stored thereon a RIM information sharing program executable on the processor, the RIM information sharing program, when executed by the processor, implementing the steps of the method of RIM information sharing described above.
According to an embodiment of the present invention, a storage medium is provided, on which a RIM information sharing program is stored, and the RIM information sharing program is executed by a processor to implement the steps of the above-mentioned RIM information sharing method.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the embodiment of the invention operates the centralized units of different RAT on the general server in a Slice (Slice) mode, and slices can be mutually sensed, so that under the condition that various RAT networks coexist and are covered together, the RIM information of a target RAT network does not need to be acquired through a core network, the load of each node on a path is reduced, the access speed among different networks is improved, and better mobility and access service can be provided for users.
Drawings
FIG. 1 is a flow chart of RIM information sharing provided by an embodiment of the present invention;
fig. 2 is a conventional inter-RAN RIM flow;
FIG. 3 is an architecture diagram of a generic server deploying RNL slices of different RATs and base stations of various RATs connected to the same server;
FIG. 4 is a flow chart of conventional RIM information acquisition between RNL slices in a universal server according to an embodiment of the present invention;
FIG. 5 is a flow chart for more efficient acquisition of RIM information between RNL slices in a universal server according to an embodiment of the present invention;
FIG. 6 is a flow chart of the RIM information acquisition for RNL inter-slice security in the universal server according to the embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described below are only for the purpose of illustrating and explaining the present invention, and are not to be construed as limiting the present invention.
The embodiment of the invention better acquires and shares information among different wireless access technology networks, so that the user has better mobility and access among the networks, and the method is suitable for the scenes of coexistence and same coverage of the current multiple wireless access technology networks. Specifically, the embodiment of the invention deploys the RNL slices of different RATs on the universal server at the same time. The radio network layer slice for each RAT runs independently on a common server. The radio network layer slices of different RATs can directly acquire a series of static and dynamic information such as configuration information, resource information and the like of the other party from the radio network layer slices of other RATs without passing through a core network. This way information of the adjoining radio access networks can be acquired faster and more.
Example 1
Fig. 1 is a flowchart of RIM information sharing provided in an embodiment of the present invention, and as shown in fig. 1, the flowchart includes:
step S101: the source RNL slice and the target RNL slice run on the same universal server platform.
The source RNL slice and the target RNL slice of the embodiments of the present invention are centralized units of different RATs that can be perceived by each other, running on the universal server. That is to say, centralized units of different RATs are deployed and operated on the same general server in an RNL slice manner, and due to the intercommunication of the bottom layer, RNL slices of different RATs can be perceived mutually, and information sharing does not need to pass through a core network.
Step S102: the method comprises the steps that a source RNL slice determining requirement is met, namely the source RNL slice determines the RIM information of a target RNL slice to be acquired, and then the RIM information of the target RNL slice is acquired from the target RNL slice directly.
Wherein the RIM information of the target RNL slice to be acquired is determined by the source RNL slice according to the self requirement.
The implementation manner of step S102 includes the following three types:
And 2, the source RNL slice acquires RIM information through subscription. Specifically, the source RNL slice subscribes to RIM information of the target RNL slice, and receives the RIM information published by the target RNL slice after the RIM information is published by the target RNL slice.
And in a mode 3, according to an authentication result of a source RNL slice, pushing subscribed RIM information to the source RNL slice, specifically, if the source RNL slice determines that the RIM information to be pushed issued by the target RNL slice is the RIM information to be acquired, sending a subscription request to the target RNL slice, and after the target RNL slice authenticates the source RNL slice according to the subscription request, the source RNL slice acquires the RIM information pushed by the target RNL slice.
The RIM Information may be UTRA SI (UTRA System Information), NACC (Network Assisted Cell Change) Information, SON Transfer (Self-Organizing Networks Transfer) Information, SI3(System Information 3), or the like.
It will be understood by those skilled in the art that all or part of the steps in the method of implementing the above embodiment may be implemented by hardware related to instructions of a program, which may be stored in a computer-readable storage medium, and when the program is executed, all or part of the steps in embodiment 1 are executed.
Example 2
The present invention may also provide a storage medium having stored thereon a program for RIM information sharing that when executed by a processor implements the steps of the method for RIM information sharing described above. The storage medium may be, but is not limited to, one or a combination of two or more of ROM, RAM, magnetic disk, optical disk, and usb disk.
Example 3
Fig. 2 is a conventional inter-RAN RIM process, and as shown in fig. 2, the RIM process is a technique for information acquisition and interaction between RANs of different RATs in a 3GPP architecture. These include UTRA SI (UTRA System Information) function, NACC (Network Assisted Cell Change) function, SON Transfer (Self-Organizing Network Transfer) function, SI3(System Information 3) function, and the like.
In fig. 2 (1), a Source RAN (Source RAN) initiates a RIM Request message, which may be any one of RIM information such as UTRA SI, Son Transfer, NACC, and the like. The message is first sent by the Source RAN to the Source Core, then by the Source Core to the Target Core, and then by the Target Core to the final destination Target RAN.
In fig. 2 (2), the Target RAN sends a Response message RIM Response to the Target Core, then the Response message RIM Response is sent by the Target Core to the Source Core, and then the Response message RIM Response is sent by the Source Core to the final destination Source RAN.
In fig. 2 (3), if the Target RAN has a change in RIM information (any of the RIM information such as UTRA SI, Son Transfer, NACC, and the like) or the Target RAN periodically reports the RIM information of the local terminal, the Target RAN sends (dynamically or periodically) a RIM Report message to the Target Core, then the Target Core sends the RIM Report message to the Source Core, and then the Source Core sends the RIM Report message to the final destination Source RAN.
Taking UTRA SI as an example, RANs having functions of 2G (The selected Generation communication), 3G (The 3rd Generation communication), and 4G (The Fourth Generation communication) mutually acquire SI (System Information) of a cell of an opposite party, and then, when RRC connection of The UE is released or switched, bring SI of a target cell that is not The RAT to The UE in an RRC connection release message or a switching message, and then, when The UE accesses The target cell, The UE does not need to read SI of The target cell, and directly uses The acquired SI, so that The speed of accessing or switching The UE into The target cell can be increased, thereby providing better service for The user.
However, the procedure of RIM shown in fig. 2 is to send a request message from the source RAN to the core network of the source RAN, then to the core network of the target RAN, and finally to the target RAN; the response message and subsequent RIM Report message are returned via the original path. Since the source RAN cell and the target RAN cell are in a many-to-many complex adjacency relationship, a large amount of message traffic is generated on the path, and the load of each node of the path is increased, thereby affecting the processing of other functions.
In the centralized control unit of the embodiment of the invention, the mutual cooperation among RNL slices of different RATs does not need to pass through a core network. Fig. 3 is an architecture diagram of a generic server in which RNL slices of different RATs are deployed and base stations of various RATs are connected to the same server, and as shown in fig. 3, a slicing concept is presented such that a centralized unit runs on the generic server in a sliced manner, so that a plurality of slices, each of which is a centralized unit of a different RAT, can be deployed and run on one generic server. And distributed units or base stations of different RATs may be directly connected to this general server.
Fig. 3 (1) is Core (Core network), which may be a Core network supporting all RATs.
FIG. 3 (2) is RNL slices of various RATs deployed on a generic server platform, including 2G RNL Slice, 3G RNL Slice, 4G RNL Slice, 5G RNL Slice, New RAT RNL Slice.
FIG. 3 (3) is a Base Station of various RATs, including 2G Base Station, 3G Base Station, 4G Base Station, 5G Base Station, and New RAT Base Station, all of which are connected to a general server platform and controlled by RNL Slice of the same RAT as itself.
Under the framework of the RAN, information interaction and sharing among the RANs of different RATs can be easier without passing through a core network, so that a faster access speed and better service quality are provided for switching and cell reselection of a terminal among different RANs.
Example 4
Fig. 4 is a flowchart of conventional RIM information acquisition between RNL slices in a universal server according to an embodiment of the present invention, as shown in fig. 4, including:
in fig. 4 (1), the Source RNL Slice sends a RIM Request message to the Target RNL Slice, which is sent directly in the universal server platform without passing through the core network. Wherein the requested RIM information may be any one of RIM information such as UTRA SI, Son Transfer, NACC, etc.
In (2) of fig. 4, the Target RNL Slice returns an RIM Response message to confirm that the RIM information is provided to the Source RNL Slice, which carries the information requested by the Source RNL Slice.
In (3) of fig. 4, if the RIM information (requested by the Source RNL Slice) in the Target RNL Slice changes, the Target RNL Slice sends a RIM Report message to the Source RNL Slice, or the Target RNL Slice periodically sends a RIM Report message to the Source RNL Slice to Report the required RIM information.
Example 5
Fig. 5 is a flowchart of more efficient obtaining of RIM information among RNL slices in the universal server according to the embodiment of the present invention, and as shown in fig. 5, the steps include:
in fig. 5 (1), RNL Slice1, RNL Slice2, RNL Slice3, and RNL Slice4 subscribe to the RIM information of interest, and there is no limit to information exchange between slices in the universal server. Wherein, the RNL Slice1 subscribes to UTRA SI information of RNL Slice2 and UTRA SI information of RNLSlice 4; the RNL Slice3 subscribes to UTRA SI information of RNL Slice1 and Son Transfer information of RNL Slice 2; RNL Slice4 subscribes to UTRA SI information of RNL Slice 3; the generic server platform will notify each RNL Slice that other rnlslices subscribe to their RIM information.
In fig. 5 (2), RNL Slice1, RNL Slice2, RNL Slice3, and RNL Slice4 send RIM Report messages periodically or according to changes in RIM information, where the RIM messages carry respective issued RIM information, including any one of UTRA SI, Son Transfer, NACC, and the like. For example, in (2), UTRA SI and Son Transfer information are issued to all of RNL Slice1, RNL Slice2, RNL Slice3, and RNL Slice 4.
In fig. 5 (3), each RNL Slice receives RIM information to which it subscribes. For example, in (3), the RNL Slice1 receives UTRA SI information of the RNL Slice2 and UTRA SI information of the RNL Slice 4; the RNL Slice3 receives UTRASI information of RNL Slice1 and Son transfer information of RNL Slice 2; the RNL Slice4 receives UTRA SI information of the RNL Slice 3;
example 6
Fig. 6 is a flowchart of obtaining RIM information for security between RNL slices in the universal server according to the embodiment of the present invention, and as shown in fig. 6, the steps include:
in fig. 6 (1), RNL Slice1 in the general-purpose server issues a broadcast message, and issues RIM information to be pushed, including UTRASI, Son Transfer, NACC, and the like.
In fig. 6 (2), after receiving the message of the RNL Slice1, the RNL Slice2 sends a subscription request message to the RNL Slice1 to request to subscribe to UTRASI information in the RIM of the RNL Slice 1.
In fig. 6 (3), the RNL Slice1 sends the authentication request message of Slice2 to the Security Control in the universal server, asking it to decide whether the RNL Slice2 has the right to receive RIM information of the RNL Slice 1.
In fig. 6 (4), Security Control returns an authentication confirmation message of Slice2 to RNL Slice1, confirming that RNL Slice2 has the right to receive RIM information of RNL Slice 1.
In fig. 6 (5), after receiving the message of the RNL Slice1, the RNL Slice3 sends a subscription request message to the RNL Slice1 to request to subscribe to UTRASI and Son Transfer information in the RIM of the RNL Slice 1.
In fig. 6 (6), the RNL Slice1 sends the authentication request message of Slice3 to the Security Control in the universal server, asking it to decide whether the RNL Slice3 has the right to receive RIM information of the RNL Slice 1.
In fig. 6 (7), Security Control returns an authentication reject message of Slice3 to RNL Slice1, confirming that RNL Slice3 does not have the right to receive RIM information of RNL Slice 1.
In fig. 6 (8), the RNL Slice1 periodically or dynamically pushes RIM information (UTRASI) subscribed to by the RNL Slice2 to the RNL Slice 2.
Example 7
The embodiment of the invention provides a device for RIM information sharing, which is arranged on a source RNL slice and comprises:
the information sharing module is used for directly acquiring the RIM information of the target RNL slice from the target RNL slice;
the source RNL slice and the target RNL slice run on the same universal server platform.
It should be noted that the source RNL slice and the target RNL slice are centralized units of different RATs capable of being perceived by each other, running on the generic server. That is to say, centralized units of different RATs are deployed and operated on the same general server in an RNL slice manner, and due to the intercommunication of the bottom layer, RNL slices of different RATs can be perceived mutually, and information sharing does not need to pass through a core network. When information is shared, the following three ways can be used: 1. a sharing module sends a RIM request to the target RNL slice and receives the RIM information sent by the target RNL slice in response to the RIM request. 2. And the sharing module subscribes the RIM information of the target RNL slice and receives the RIM information of the target RNL slice after the RIM information is published by the target RNL slice. 3. And the sharing module sends a subscription request to the target RNL slice when determining that the RIM information to be pushed issued by the target RNL slice is the RIM information to be acquired, and acquires the RIM information pushed by the target RNL slice after the target RNL slice passes the authentication of the source RNL slice according to the subscription request.
Example 8
The embodiment provides a RIM information sharing device, which includes: a processor, and a memory coupled to the processor; the memory has stored thereon a RIM information sharing program executable on the processor, the RIM information sharing program, when executed by the processor, implementing the steps of the method of RIM information sharing described above.
In summary, the embodiments of the present invention have the following technical effects:
the embodiment of the invention realizes better information acquisition and sharing among different RAT networks under the condition of coexistence and common coverage of multiple wireless access technology networks, provides better mobility and accessibility services for users among the networks, and enables the users to access different networks more quickly.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and various modifications can be made by those skilled in the art in light of the principle of the present invention. Thus, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (10)
1. A method for managing RIM information sharing by wireless access network information is characterized by comprising the following steps:
directly acquiring RIM information of a target RNL slice from the source RNL slice;
wherein the source RNL slice and the target RNL slice are centralized units of mutually perceptibly different RATs operating on the same generic server platform of a radio access network RAN, the RNL being a radio network layer, the RATs being radio access technologies.
2. The method of claim 1, wherein the obtaining the RIM information of the target RNL slice directly from the source RNL slice to the target RNL slice comprises:
the source RNL slice sends a RIM request to the target RNL slice;
the source RNL slice receives the RIM information of the target RNL slice response.
3. The method of claim 1, wherein the obtaining the RIM information of the target RNL slice directly from the source RNL slice to the target RNL slice comprises:
the source RNL slice subscribes RIM information of the target RNL slice;
and the source RNL slice receives the RIM information issued by the target RNL slice.
4. The method of claim 1, wherein the obtaining the RIM information of the target RNL slice directly from the source RNL slice to the target RNL slice comprises:
if the source RNL slice determines that the RIM information to be pushed issued by the target RNL slice is the RIM information to be acquired, sending a subscription request to the target RNL slice;
and after the target RNL slice authenticates the source RNL slice according to the subscription request, the source RNL slice acquires the RIM information pushed by the target RNL slice.
5. An apparatus for radio access network information management (RIM) information sharing, the apparatus being configured in a source RNL slice, comprising:
the information sharing module is used for directly acquiring the RIM information of the target RNL slice from the target RNL slice;
the source RNL slice and the target RNL slice are centralized units of different RATs capable of mutual awareness operating on the same generic server platform of a radio access network RAN, the RNL being a radio network layer, the RATs being radio access technologies.
6. The apparatus of claim 5, wherein the information sharing module sends a RIM request to the target RNL slice and receives the RIM information in response to the target RNL slice.
7. The apparatus of claim 5, wherein the information sharing module subscribes to RIM information of the target RNL slice and receives the RIM information published by the target RNL slice.
8. The apparatus of claim 5, wherein the information sharing module sends a subscription request to the target RNL slice when determining that the RIM information to be pushed published by the target RNL slice is the RIM information to be obtained, and obtains the RIM information pushed by the target RNL slice after the target RNL slice authenticates the source RNL slice according to the subscription request.
9. An apparatus for RIM information sharing, the apparatus comprising: a processor, and a memory coupled to the processor; the memory has stored thereon a RIM information sharing program executable on the processor, the RIM information sharing program when executed by the processor implementing the steps of the method of RIM information sharing as claimed in any one of claims 1 to 4.
10. A storage medium having stored thereon a program for RIM information sharing, which when executed by a processor, implements the steps of the method for RIM information sharing of any one of claims 1 to 4.
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| 《Interim agreements about shared network functions in network slicing》;China Telecom;《SA WG2 Meeting #116BIS S2-164702》;20160902;全文 * |
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