CN109067578A - A kind of method and apparatus of rapidly channel switching - Google Patents
A kind of method and apparatus of rapidly channel switching Download PDFInfo
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- CN109067578A CN109067578A CN201810858125.6A CN201810858125A CN109067578A CN 109067578 A CN109067578 A CN 109067578A CN 201810858125 A CN201810858125 A CN 201810858125A CN 109067578 A CN109067578 A CN 109067578A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0889—Techniques to speed-up the configuration process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/16—Multipoint routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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Abstract
The present invention provides a kind of multicast quick switching method, and the method is applied to gateway, which comprises receives the request message that the first multicast group is added in multicast client, obtains the data message of the first multicast group from upstream network and be distributed to the client；The multicast handover configurations that management user issues are received, wherein the configuration includes the second multicast group IP address；Create the mapping relations of the second multicast group IP address Yu the first multicast group IP address；The message that leaves of the first multicast group is triggered, upstream network is sent, and receives response message；Joining message for the second multicast group is triggered, the data message of the second multicast group is obtained from upstream, and is distributed to multicast client after the multicast group address of the data message is revised as the first multicast group IP address based on the mapping relations.Multiple multicast clients in local area network may be implemented using the embodiment of the present invention, while needing to carry out under multicast source handoff scenario, simplify processing multicast switching flow, improve bandwidth utilization efficiency.
Description
Technical field
This application involves the methods and gateway apparatus of field of communication technology more particularly to a kind of rapidly channel switching.
Background technique
Multicast, which refers to, sends the node set of some determination (i.e. in the form transmitted as possible for data packet in an ip network
Multicast group), basic thought is: source host (i.e. multicast ip address) only sends a data, and destination address is for multicast group
Location；All recipients in multicast group can receive same data copy, and the host only in multicast group can receive
The data, and other hosts cannot then receive.
As IT (Information Technology, the information technology) continuous development of industry and the propulsion of IP network are built
If IP multicasting technology is popularized already.The most common multicast application form is point-to-multipoint, is exactly a upstream network, multiple groups
It broadcasts in receiving end, such as CHINA RFTCOM Co Ltd, broadcasting center platform distributes a channel program to hundreds of user and passes through group
It broadcasts and send audio and video data streams all the way, when program source needs to switch, existing multicast realization mechanism inefficiency, waste bandwidth.
Summary of the invention
The application scenarios of same channel are needed while watched based on users all in local area network, and current programme needs to match one by one
Set the corresponding multicast reception end of each user.When user's switching channels, it is also desirable to configure the corresponding multicast of each user one by one
Receiving end, maintenance complexity and inefficiency.Based on current programme, channel program switches, and will appear in local area network while depositing
Two multicast data flows the case where, lead to bandwidth waste.
In view of this, the application provides a kind of method and gateway for realizing rapidly channel switching based on multicast handover configurations table
Equipment, to solve all users in local area network while watch same channel and need under the application scenarios of switching channels, multicast
The problem of flowing complicated handover configurations and bandwidth waste.
Specifically, the application is achieved by the following technical solution:
The disclosure is in a first aspect, a kind of multicast quick switching method, the method are applied to include gateway, upstream net
Network, multicast client system in gateway, centre of the gateway between upstream network and multicast client
Equipment, which comprises
It receives multicast client and joining message for the first multicast group is added, the data of the first multicast group are obtained from upstream network
Message is simultaneously distributed to the client；
The multicast handover configurations that management user issues are received, wherein the configuration includes the second multicast group IP address；
Create the mapping relations of the second multicast group IP address Yu the first multicast group IP address；
Joining message for the second multicast group is triggered, the data message of the second multicast group is obtained from upstream, and reflect based on described
It penetrates after the multicast group address of the data message is revised as the first multicast group IP address by relationship and is distributed to multicast client.
Disclosure second aspect provides a kind of gateway, the gateway be upstream network and multicast client it
Between intermediate equipment, have the function of realize the above method.The function can also be held by hardware realization by hardware
The corresponding software realization of row.The hardware or software include one or more modules corresponding with above-mentioned function or unit.
In a kind of implementation, intermediate equipment of the gateway between upstream network and multicast client, comprising:
Transceiver module, for receiving user configuration message；Receive the second multicast group IP of multicast client in local area network
Location multicast is added；Upstream network obtains the data message of the second multicast group IP address；
Processing module is based on multicast handover configurations list item, the second multicast group IP address in data message, is converted into the
One multicast group IP address, the multicast client being sent in local area network.
In another implementation, the gateway may include communication interface, processor, memory and bus, institute
It states and is connected with each other between communication interface, the processor and the memory by bus；Storing machine in the memory can
Reading instruction, the processor execute method described in disclosure first aspect by calling the machine readable instructions.
The application third aspect, provides a kind of machine readable storage medium, and the machine readable storage medium is stored with
Machine-executable instruction, when being called and being executed by processor, the machine-executable instruction promotees the machine-executable instruction
The processor is set to realize method described in the application first aspect.
Using the present invention is based on the technical solution of multicast handover configurations table, rapidly channel switching is realized, multicast is simplified
Service switchover configuration flow improves network bandwidth utilization factor.
Detailed description of the invention
Fig. 1 is system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 2 is method flow diagram provided in an embodiment of the present invention；
Fig. 3 is rapidly channel switching Signalling exchange schematic diagram provided in an embodiment of the present invention；
Fig. 4 is apparatus function module frame chart provided by the invention；
Fig. 5 is the hardware structure diagram of Fig. 4 shown device provided by the invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
Technical solution in embodiment in order to enable those skilled in the art to better understand the present invention, below first to this hair
The applicable system architecture of bright embodiment is briefly described.
It referring to Figure 1, is a kind of system architecture schematic diagram provided in an embodiment of the present invention, as shown in Figure 1, the disclosure provides
Multicast quick switching method, can be applied to system exemplified by Fig. 1, the system include upstream network, gateway, group podcast
Family end, in which:
Multicast source is located at upstream network, is the sender of multicast packet, can be Video Programming Service and provides platform etc..
Multicast client, the recipient of multicast information, also referred to as user equipment can be TV, mobile phone, meter
Calculation machine or vehicle-mounted mobile etc..
Gateway is connected to the network equipment of network for multicast client, also for multicast client and upstream network it
Between intermediate equipment.
Based on being described above, the method provided below the disclosure is described:
The a kind of of disclosure offer is applied between upstream network and multicast client based on multicast multicast switching method
In gateway, for the method that the realization disclosure provides, technical solution in the embodiment of the present invention is made into one with reference to the accompanying drawing
Step detailed description.
Fig. 2 is referred to, is the flow chart of multicast quick switching method provided by the invention, it may include following steps:
Step 201 receives the request message that the first multicast group is added in multicast client, obtains the first multicast from upstream network
The data message of group is simultaneously distributed to the client.
Step 202 receives the multicast handover configurations that issue of management user, and wherein the configuration is including the second multicast group IP
Location.
Step 203, the mapping relations for creating the second multicast group IP address and the first multicast group IP address.
Determine the time of reception for multiple multicast handover configurations messages that multicast client is sent；It is corresponding based on the time of reception
The smallest multicast handover configurations message of timestamp is based on user configuration, generates multicast handover configurations list item, creates the second multicast group
The mapping relations of IP address and the first multicast group IP address please refer to 1 example of table:
Table 1
Step 204, the first multicast group of triggering leave message, and upstream network is sent, and receives response message.
Step 205 triggers joining message for the second multicast group, and the data message of the second multicast group is obtained from upstream network,
And multicast is distributed to after based on the mapping relations multicast group address of the data message being revised as the first multicast group IP address
Client.
In addition to the situation described in the step 204, in another case, if gateway is not received by upstream net
The addition request success response message of network receives request failure response message, then returns to handover failure to by multicast client
Response.
So far, process shown in Fig. 2 is completed.
It can be seen that gateway by identifying that multicast client is sent to upstream network by process shown in Fig. 2
First multicast group IP address joins message, according to the multicast handover configurations table comprising the second multicast group IP address of user configuration
, the first multicast group of triggering leaves message, requests the data message of the second multicast group IP address, and according to multicast handover configurations
Second multicast group IP address of list item, replacement data message is the first multicast group IP address, so that multicast client is carrying out group
When broadcasting address change, can successfully it be switched fast.
In order to make those skilled in the art more fully understand technical solution provided in an embodiment of the present invention, below with reference to specific
Application scenarios are illustrated technical solution provided in an embodiment of the present invention.Fig. 3 is referred to, is provided in an embodiment of the present invention one
The Signalling exchange schematic diagram of kind concrete application scene.
Multicast client needs to carry out following configure:
1) the first multicast group address to be requested, for example, 224.0.0.100
Positioned at the multicast source 1 of upstream network, need to carry out following configure:
1) to the first multicast group address, for example, 224.0.0.100, multicast data message is sent.
Positioned at the multicast source 2 of upstream network, need to carry out following configure:
1) to the second multicast address, for example, 224.0.0.200, multicast data message is sent.
Based on above-mentioned configuration, intermediate equipment of the gateway as multicast client and upstream network can when handling message
To execute process flow as shown in Figure 3:
Step S301, the multicast client multicast that upstream network sends the first multicast group address 224.0.0.100 is added
Message.
Step S302, gateway is based on some and monitors multicast address, such as 224.0.0.1, monitors multicast client
The multicast of first multicast group address 224.0.0.100 joins message, and after gateway receives message, analyzes the message, obtains the
One multicast group address saves list item, please refers to 2 example of table:
| First multicast group IP |
| 224.0.0.100 |
Table 2
Gateway forwards the multicast of the first multicast group address 224.0.0.100 to join message to upstream network.
Step S303, the multicast source 1 of upstream network sends multicast datagram to the first multicast group address 224.0.0.100
Text, this data message are transmitted to multicast client through gateway.
Step S304, multicast client is based on the first multicast group address 224.0.0.100 and sends multicast handover configurations message,
In this configuration message include the second to be switched multicast group IP address, for example, 224.0.0.200, the second multicast port, such as
It is 20000.
Step S305, gateway is based on the first multicast group address 224.0.0.100, monitors the group of multicast client
Handover configurations message is broadcast, after gateway receives message, analyzes the message, obtains the second to be switched multicast group IP address, is protected
The list item for depositing multicast handover configurations table please refers to 3 example of table:
Table 3
In this step, it is understood that there may be a kind of example scenario be to match when there is multiple multicast clients to send multicasts switching
Message is set, gateway obtains the time of reception for multiple multicast handover configurations messages that multicast client is sent；When based on receiving
Carve the corresponding the smallest multicast handover configurations message of timestamp.
Step S306, gateway triggers the first multicast group IP address 224.0.0.100 and leaves message, upstream network
It sends, and receives response message, leave the first multicast group.
Step S307, gateway joins message according to the second multicast address of table 3, the second multicast group of triggering, from upper
Swim the data message that network obtains the second multicast group.
Step S308, the multicast source 2 of upstream network sends the second multicast group to the second multicast group address 224.0.0.200
Success response message is added and data message, this data message are transmitted to gateway through upstream network.
Step S309, gateway receives the multicast source 2 of upstream network, and the second multicast data message of transmission obtains number
It is 224.0.0.200 according to the second multicast address in message, is inquired according to multicast handover configurations Biao-table 3, obtaining this data message needs
Carry out multicast address replacement；Then gateway is the purpose IP address 224.0.0.200 in the second multicast data message of acquisition,
Purpose IP address 224.0.0.100 is replaced with, that is, replaces with the first multicast group IP, the multicast client being transmitted in local area network.
Step S310, after multicast client receives the notice message of gateway, it is based on original first multicast group IP address-
224.0.0.100, the second multicast data message that the multicast source 2 that real data is upstream network is sent is continued to.
This step of step S309-2 is the possibility branch of step S309-1, i.e., when the multicast source of upstream network 2 and upstream net
Network to gateway send be added the second multicast be added failure response message, such as upstream network multicast source 2 occur and not
It is limited to the anomalous event such as delay machine, gateway receives failure response message from upstream network, then re-initiates the second multicast
The addition of group, as shown in step S307.
The method provided above the disclosure is described.The device provided below the disclosure is described.
Referring to fig. 4, a kind of gateway provided for the disclosure, the gateway are multicast client end and upstream network
Between intermediate equipment.As shown in figure 4, the gateway may include with lower module:
Transceiver module, the first multicast group IP address multicast for receiving multicast client in local area network join message；Turn
Send out the data message of the first multicast group IP address；User configuration message is received, send the first multicast group leaves message, and receives
Response message；Upstream network obtains the data message of the second multicast group IP address, is sent to multicast client after converted；
Processing module establishes the mapping relations of multicast handover configurations list item；Determine the first multicast group of triggering leaves message；
The the second multicast group IP address obtained in data message from upstream network, it is converted into the first multicast group IP address.
In a kind of wherein embodiment, the transceiver module monitors message, office of acceptance based on the first multicast group IP address
The multicast handover configurations message that management user is issued based on multicast client in the net of domain；
The processing module analyzes the message, obtains the second multicast group IP address and saves.
In a kind of wherein embodiment, the processing module, based on the multicast handover configurations message received, wound
The mapping relations of the second multicast group IP address Yu the first multicast group IP address are built, multicast handover configurations list item is generated.
In a kind of wherein embodiment, the transceiver module, the multicast for determining that the multiple multicast client is sent is cut
Change the time of reception of configuration message；The processing module is based on the smallest multicast handover configurations of the time of reception corresponding timestamp
Message generates multicast handover configurations list item.
In a kind of wherein embodiment, the processing module, after being generated based on multicast handover configurations list item, triggering first
Multicast group leaves message；The transceiver module, upstream network is sent, and receives response message.
In a kind of wherein embodiment, the transceiver module generates moment, touching based on the creation of multicast handover configurations list item
Joining message for the second multicast group is sent out, the data message of the second multicast group is obtained from upstream.The processing module is based on described group
Mapping relations present in handover configurations list item are broadcast, the second multicast group IP address of the data message is revised as the first multicast group
Multicast client is distributed to after IP address.
So far, the description of Fig. 4 shown device is completed.
Accordingly, the disclosure additionally provides a kind of hardware configuration of gateway of Fig. 4 shown device, referring to Fig. 5, Fig. 5
For a kind of hardware structural diagram for gateway that the disclosure provides.The access device includes: communication interface 501, processor
502, memory 503, nonvolatile memory 504 and bus 505；Wherein, communication interface 501, processor 502, memory 503, non-
Volatile memory 504 completes mutual communication by bus 505.
Wherein, communication interface 501, for sending and receiving message.Processor 502 can be a central processing unit
(CPU), memory 503 can read from nonvolatile memory 504 and be stored with machine readable instructions, and processor 502 can be held
The machine readable instructions stored in row memory 503, to realize above-mentioned method shown in Fig. 2.
Memory 503 referred to herein can be any electronics, magnetism, optics or other physical storage devices, can wrap
Contain or store information, such as executable instruction, data, etc..For example, machine readable storage medium may is that RAM (Radom
Access Memory, random access memory), volatile memory perhaps similar storage medium or their combination.This
The nonvolatile memory 504 mentioned in text can be any nonvolatile memory, flash memory, memory driver, and (such as hard disk drives
Dynamic device), solid state hard disk, any kind of storage dish (such as CD, dvd) perhaps similar storage medium or their group
It closes.
So far, hardware configuration description shown in fig. 5 is completed.
In addition, the embodiment of the present application also provides a kind of machine readable storage medium including machine-executable instruction, example
Such as the machine readable memory 503 and nonvolatile memory 504 in Fig. 5, the machine-executable instruction can be filled by data processing
Processor 501 in setting is executed to realize data processing method described above.The function and work of each unit in above-mentioned apparatus
Realization process is specifically detailed in the realization process that step is corresponded in the above method, and details are not described herein.The foregoing is merely this
The preferred embodiment of application, not to limit the application, within the spirit and principles of this application, that is done is any
Modification, equivalent replacement, improvement etc. should be included within the scope of the application protection.
Claims (15)
1. a kind of multicast quick switching method, the method is applied to gateway, and the gateway is upstream network and group
Broadcast the intermediate equipment between client, it is characterised in that:
The request message that the first multicast group is added in multicast client is received, the data message of the first multicast group is obtained from upstream network
And it is distributed to the client；
The multicast handover configurations that management user issues are received, wherein the configuration includes the second multicast group IP address；
Create the mapping relations of the second multicast group IP address Yu the first multicast group IP address；
The message that leaves of the first multicast group is triggered, upstream network is sent, and receives response message；
Joining message for the second multicast group is triggered, the data message of the second multicast group is obtained from upstream network, and reflect based on described
It penetrates after the multicast group address of the data message is revised as the first multicast group IP address by relationship and is distributed to multicast client.
2. the method as described in claim 1, which is characterized in that the addition for receiving multicast client and the first multicast group being added
Message obtains the data message of the first multicast group from upstream network and is distributed to the client, comprising:
The multicast for monitoring the first multicast group of multicast client joins message；The message is analyzed, the first multicast group address is obtained；
The data message of the first multicast group is obtained from upstream network and is distributed to the client.
3. the method as described in claim 1, which is characterized in that the multicast handover configurations report for receiving management user and issuing
Text, wherein the configuration includes the second multicast group IP address, comprising:
Message is monitored based on the first multicast group IP address, receives the multicast that management user is issued based on multicast client in local area network
Handover configurations message；
The second multicast group IP address in the configuration message is obtained, and is saved.
4. the method as described in claim 1, which is characterized in that the second multicast group IP address of the creation and the first multicast group IP
The mapping relations of address, comprising:
Based on the multicast handover configurations message received, the second multicast group IP address and the first multicast group IP address are created
Mapping relations generate multicast handover configurations list item.
5. method as claimed in claim 3, which is characterized in that the multicast handover configurations message received is multiple multicasts
Multiple multicast handover configurations messages that client is sent；Based on the multicast handover configurations message received, second group is created
The mapping relations of group IP address Yu the first multicast group IP address are broadcast, multicast handover configurations list item is generated, comprising:
Determine the time of reception for the multicast handover configurations message that the multiple multicast client is sent；
Based on the smallest multicast handover configurations message of the time of reception corresponding timestamp, multicast handover configurations list item is generated.
6. the method as described in claim 1, which is characterized in that the first multicast group of the triggering leaves message, upstream net
Network is sent, and receives response message, comprising:
After being generated based on multicast handover configurations list item, the first multicast group of triggering leaves message, and upstream network is sent, and is received
Response message.
7. the method as described in claim 1, which is characterized in that joining message for the second multicast group of the triggering is obtained from upstream
The data message of the second multicast group is taken, and the multicast group address of the data message is revised as first group based on the mapping relations
Multicast client is distributed to after broadcasting group IP address, comprising:
It is created based on multicast handover configurations list item and generates the moment, gateway triggers joining message for the second multicast group, from upstream
Obtain the data message of the second multicast group；
Based on mapping relations present in the multicast handover configurations list item, the second multicast group IP address of the data message is repaired
Multicast client is distributed to after being changed to the first multicast group IP address.
8. a kind of rapidly channel switching device, which is characterized in that described device is applied to gateway, and the gateway is upper
Swim the intermediate equipment between network and multicast client, comprising:
Transceiver module, the first multicast group IP address multicast for receiving multicast client in local area network join message；Forwarding the
The data message of one multicast group IP address；User configuration message is received, send the first multicast group leaves message, and receives response
Message；Upstream network obtains the data message of the second multicast group IP address, is sent to multicast client after converted；
Processing module establishes the mapping relations of multicast handover configurations list item；Determine the first multicast group of triggering leaves message；From
Upstream network obtains the second multicast group IP address in data message, is converted into the first multicast group IP address.
9. device as claimed in claim 8, which is characterized in that
The transceiver module monitors message based on the first multicast group IP address, receives management user in local area network and is based on group podcast
The multicast handover configurations message that family end issues；
The processing module analyzes the message, obtains the second multicast group IP address and saves.
10. device as claimed in claim 8, which is characterized in that
The processing module creates the second multicast group IP address and first based on the multicast handover configurations message received
The mapping relations of multicast group IP address generate multicast handover configurations list item.
11. device as claimed in claim 9, which is characterized in that
The transceiver module determines the time of reception for the multicast handover configurations message that the multiple multicast client is sent；
The processing module is based on the smallest multicast handover configurations message of the time of reception corresponding timestamp, generates multicast switching
Configure list item.
12. device as claimed in claim 8, which is characterized in that
The processing module, after being generated based on multicast handover configurations list item, the first multicast group of triggering leaves message；
The transceiver module, upstream network is sent, and receives response message.
13. device as claimed in claim 8, which is characterized in that
The transceiver module generates the moment based on the creation of multicast handover configurations list item, and the second multicast group of triggering joins message, from
Upstream obtains the data message of the second multicast group；
The processing module, based on mapping relations present in the multicast handover configurations list item, by the second of the data message
Multicast group IP address is distributed to multicast client after being revised as the first multicast group IP address.
14. a kind of gateway, which is characterized in that including communication interface, processor, memory and bus, the communication interface,
It is connected with each other between the processor and the memory by bus；
Machine readable instructions are stored in the memory, the processor is executed by calling the machine readable instructions as weighed
Benefit requires 1 to 5 described in any item methods.
15. a kind of machine readable storage medium, which is characterized in that the machine readable storage medium is stored with machine readable finger
It enables, for the machine readable instructions when being called and being executed by processor, the machine readable instructions promote the processor to realize
Method described in any one of claim 1 to 5.
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| CN115442288A (en) * | 2022-08-19 | 2022-12-06 | 中国信息通信研究院 | SRv6 network data packet inspection method and device |
| CN115516881A (en) * | 2020-07-10 | 2022-12-23 | Oppo广东移动通信有限公司 | Wireless communication method, terminal equipment and network equipment |
| CN116033365A (en) * | 2023-03-22 | 2023-04-28 | 新华三技术有限公司 | Communication method, device, electronic equipment and storage medium |
| WO2023109891A1 (en) * | 2021-12-17 | 2023-06-22 | 华为技术有限公司 | Multicast transmission method, apparatus and system |
| WO2024066897A1 (en) * | 2022-09-28 | 2024-04-04 | 华为技术有限公司 | Information transmission method and network device |
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| CN115442288A (en) * | 2022-08-19 | 2022-12-06 | 中国信息通信研究院 | SRv6 network data packet inspection method and device |
| WO2024066897A1 (en) * | 2022-09-28 | 2024-04-04 | 华为技术有限公司 | Information transmission method and network device |
| WO2024088173A1 (en) * | 2022-10-24 | 2024-05-02 | 华为技术有限公司 | Multicast communication method and related apparatus |
| CN116033365A (en) * | 2023-03-22 | 2023-04-28 | 新华三技术有限公司 | Communication method, device, electronic equipment and storage medium |
| CN116033365B (en) * | 2023-03-22 | 2023-06-20 | 新华三技术有限公司 | Communication method, device, electronic equipment and storage medium |
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