CN117014846A - Emergency call method, network node and storage medium - Google Patents
Emergency call method, network node and storage medium Download PDFInfo
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- CN117014846A CN117014846A CN202210466059.4A CN202210466059A CN117014846A CN 117014846 A CN117014846 A CN 117014846A CN 202210466059 A CN202210466059 A CN 202210466059A CN 117014846 A CN117014846 A CN 117014846A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 120
- 238000004590 computer program Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
Abstract
The disclosure provides an emergency call method, a network node and a storage medium, and relates to the technical field of communication. An emergency call method of the present disclosure includes: the network node acquires a relay discovery request from a remote node; under the condition that the relay discovery request comprises the emergency call identifier, if the emergency call relay requirement of the remote node is met, unicast communication connection with the remote node is established; the network node acquires an emergency communication service identifier and an emergency communication target number from the remote node; and the network node sends an emergency call request to the network side according to the emergency communication service identifier and the emergency communication target number. By the method, the success rate of the emergency call is improved.
Description
Technical Field
The disclosure relates to the technical field of communication, in particular to an emergency call method, a network node and a storage medium.
Background
D2D (Device-to-Device) communication, or ProSe (Proximity based Services, proximity services). One of the attraction points of the new generation of near field access technology to operators is that ProSe-enabled terminals can connect with multiple neighboring U2N Relay (UE to Network Relay, terminal-to-network Relay) over high frequency links and access the cellular network through these U2N Relay.
Disclosure of Invention
It is an object of the present disclosure to increase the probability of call success for emergency communications.
According to an aspect of some embodiments of the present disclosure, there is provided an emergency call method comprising: the network node acquires a relay discovery request from a remote node; under the condition that the relay discovery request comprises the emergency call identifier, if the emergency call relay requirement of the remote node is met, unicast communication connection with the remote node is established; the network node acquires an emergency communication service identifier and an emergency communication target number from the remote node; and the network node sends an emergency call request to the network side according to the emergency communication service identifier and the emergency communication target number.
In some embodiments, the relay discovery request further includes an emergency communication destination number; determining that the emergency call relay requirement of the remote node is met includes: the network node determines that the emergency communication target number is in a pre-stored emergency number set and meets the condition of being used as a relay node, and determines that the emergency call relay requirement of the remote node is met.
In some embodiments, the emergency call identity is the same as the emergency communication service identity.
In some embodiments, the method further comprises: the network node establishes a connection with a 5G core network; and acquiring and storing an emergency number set issued by the 5G network.
In some embodiments, sending the emergency call request to the network side includes: the network node sends a service request with the service type of emergency service fallback to the AMF; the method further comprises the steps of: the network node serves as a relay node between the remote node and the 5G core network, and maintains an emergency communication call connection between the remote node and the 5G core network.
According to an aspect of some embodiments of the present disclosure, there is provided an emergency call method comprising: generating and transmitting a relay discovery request, wherein the relay discovery request comprises an emergency call identifier; under the condition that relay discovery feedback information from a network node is received, unicast communication connection with the network node is established, wherein the network node feeds back the relay node feedback information under the condition that the relay discovery request comprises an emergency call identifier and the emergency call relay requirement of a remote node is determined; and sending the emergency communication service identifier and the emergency communication target number to the network node so that the network node initiates an emergency call request to the network side.
In some embodiments, the relay discovery request further includes an emergency communication destination number; the relay node determines that the emergency call relay requirement of the remote node is met under the condition that the emergency communication target number is determined to be in a pre-stored emergency number set and the condition of serving as the relay node is met.
According to an aspect of some embodiments of the present disclosure, there is provided a network node comprising: a request acquisition unit configured to acquire a relay discovery request from a remote node; a connection establishment unit configured to establish a unicast communication connection with the remote node if it is determined that the emergency call relay requirement of the remote node is met, in the case where it is determined that the emergency call identifier is included in the relay discovery request; an information acquisition unit configured to acquire an emergency communication service identifier and an emergency communication destination number from a remote node; and the call sending unit is configured to send an emergency call request to the network side according to the emergency communication service identifier and the emergency communication target number.
In some embodiments, the relay discovery request further includes an emergency communication destination number; the connection establishment unit includes: a first judging subunit configured to determine whether the relay discovery request includes an emergency call identifier; the second judging subunit is configured to judge whether the emergency communication target number is in a pre-stored emergency number set or not and whether the condition as a relay node is met or not in the case that the emergency call identifier is included in the relay discovery request; a connection establishment subunit configured to establish a unicast communication connection with the remote node in the case where the emergency communication target number is in a pre-stored emergency number set and meets a condition as a relay node.
In some embodiments, the node further comprises: the number set acquisition unit is configured to establish connection with the 5G core network, acquire and store an emergency number set issued by the 5G network.
In some embodiments, the call sending unit is configured to send a service request with a service type of emergency service fallback to the AMF; the node further comprises: and a communication maintaining unit configured to maintain an emergency communication call connection between the remote node and the 5G core network as a relay node between the remote node and the 5G core network.
According to an aspect of some embodiments of the present disclosure, there is provided a network node comprising: a request unit configured to generate and transmit a relay discovery request, the relay discovery request including an emergency call identifier; the connection unit is configured to establish unicast communication connection with a network node sending relay node feedback information under the condition that relay discovery feedback information is received, wherein the network node feeds back the relay node feedback information under the condition that the relay discovery request comprises an emergency call identifier and the emergency call relay requirement of a remote node is determined; and the information providing unit is configured to send the emergency communication service identifier and the emergency communication target number to the opposite-end network node for establishing the unicast communication connection so that the opposite-end network node initiates an emergency call request to the network side.
According to an aspect of some embodiments of the present disclosure, there is provided a network node comprising: a memory; and a processor coupled to the memory, the processor configured to perform any of the methods as hereinbefore described based on instructions stored in the memory.
According to an aspect of some embodiments of the present disclosure, a non-transitory computer-readable storage medium is presented, having stored thereon computer program instructions that, when executed by a processor, implement the steps of any of the methods above.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the present disclosure, and together with the description serve to explain the present disclosure. In the drawings:
fig. 1 is a flow chart of some embodiments of the emergency call method of the present disclosure.
Fig. 2 is a flow chart of other embodiments of the emergency call method of the present disclosure.
Fig. 3 is a signaling flow diagram of some embodiments of the emergency call method of the present disclosure.
Fig. 4 is a schematic diagram of some embodiments of a network node of the present disclosure.
Fig. 5 is a schematic diagram of some embodiments of a connection establishment unit in a network node of the present disclosure.
Fig. 6 is a schematic diagram of further embodiments of a network node of the present disclosure.
Fig. 7 is a schematic diagram of further embodiments of a network node of the present disclosure.
Fig. 8 is a schematic diagram of still other embodiments of a network node of the present disclosure.
Detailed Description
The technical scheme of the present disclosure is described in further detail below through the accompanying drawings and examples.
Nodes in the network, such as user terminal nodes, may act as relay nodes, and may connect to a 5GC (5G core network) through an interface between terminals and a terminal-network relay node when a remote node, which is far from the network side, attempts to connect to the network.
The inventor finds that no implementation scheme of the 5G ProSe UE-To-Network Relay emergency communication service exists at present, and the Relay service is utilized To realize the emergency communication service, so that the call success rate of the emergency communication can be improved, and the user experience is improved.
A flow chart of some embodiments of the emergency call method of the present disclosure is shown in fig. 1.
In step 111, the network node obtains a relay discovery request from a remote node. In some embodiments, a network node is pre-registered with a 5G core network and receives an emergency number set issued by the 5G core network, and establishes a PDU (Protocol Data Unit ) session with the 5G core network.
In step 112, the network node parses the relay discovery request to determine if it carries an emergency call identifier. If the emergency call identifier is carried, executing step 213; otherwise, the current relay discovery request is not directed to emergency call initiation, and a relay discovery procedure in the related art may be performed.
In step 113, the network node determines whether it meets the emergency call relay requirement of the remote node. In some embodiments, the emergency call relay requirements may include whether emergency call requirements required by the remote node are supported, and may also include whether relay service requirements required by the remote node are supported.
In some embodiments, the relay discovery request may further carry an emergency communication destination number, where the network node matches the emergency communication destination number with the own stored emergency number set, and if the matching is successful, the network node supports an emergency call requirement required by the remote node, so as to further execute the determination of whether the relay service requirement is met. The judgment condition for satisfying the relay service requirement may be any one of the related arts. In some embodiments, it may be determined whether the remote node can be provided with the relay service according to one or more of the signal strength, the signal quality, and the resource status of the relay node itself of the received relay discovery request.
If the network node determines that the network node can meet the emergency call relay requirement of the remote node, step 114 is performed; otherwise, discarding the relay discovery request, and ending the relay node discovery process for the current network node.
In step 114, the network node establishes a Unicast communication connection with the remote node. In some embodiments, the network node may send relay discovery feedback information to the remote node informing the remote node to establish the unicast communication connection.
In step 115, during the unicast communication connection establishment procedure, the network node obtains an emergency communication service identity and an emergency communication destination number from the remote node. In some embodiments, the emergency communication service identification may be the same as the emergency call identification in step 112 described above.
In step 116, the network node determines that the current call is an emergency call according to the received emergency communication service identifier, and further uses the emergency communication destination number as a called number, and sends an emergency call request to the network side. In some embodiments, the network node may send a service request to the AMF with a service type of emergency service fallback (Emergency Service Fallback). The network side forwards the emergency call request to the called party based on the processing mode of the emergency call request in the related art.
By the method in the embodiment, the network node can identify the emergency call requirement of the remote node in the relay discovery request, and then establish the device-to-device connection with the terminal under the condition that the network node can provide corresponding relay service, so as to replace the remote terminal to initiate the emergency call request to the network side and serve as the relay between the remote terminal and the network side, thereby enabling the remote node to rapidly and efficiently utilize the relay service to realize the emergency call, avoiding the failure of the emergency call caused by the failure of the connected relay node to provide the emergency call service, and improving the success rate and efficiency of the emergency call.
A flow chart of further embodiments of the emergency call method of the present disclosure is shown in fig. 2.
In step 221, the remote node generates and transmits a relay discovery request, where the relay discovery request includes an emergency call identifier. In some embodiments, the remote node may send a relay discovery request to find a network node capable of providing relay service if it finds itself far from an access point (e.g., a base station) capable of providing access service. In some embodiments, the relay discovery request may be transmitted in the form of a broadcast.
In some embodiments, the remote node may generate a relay discovery request when an emergency call needs to be made and the remote node is far away from an access point (such as a base station) capable of providing access service, and carry an emergency call identifier in the relay discovery request. In some embodiments, the relay discovery request may also carry an emergency communication destination number (e.g., 110, 119, etc.).
In step 222, the remote node determines whether relay discovery feedback information has been received. If relay discovery feedback information is received, step 223 is performed. Otherwise, waiting for receiving feedback information, or retransmitting the relay discovery request.
In some embodiments, the network node may determine whether the emergency call relay requirement of the remote node is met in the manner described in the embodiments above, and in the event that the emergency call relay requirement of the remote node is determined to be met, send relay discovery feedback information to the remote node.
In step 223, the remote node establishes a unicast communication connection with the network node providing the relay discovery feedback information. In some embodiments, when the remote node receives multiple relay discovery feedback information, one network node may be selected to provide relay services according to a predetermined policy. In some embodiments, the predetermined policy may include selecting according to one or more of a priority of the network node, a quality of service that can be provided, or a degree of stability.
In step 224, the remote node sends the emergency communication service identification and the emergency communication destination number to the selected relay node via the unicast communication connection.
By means of the method in the embodiment, the network node can inform the network node of providing the emergency call service in the relay node discovery process under the condition that the network node needs to initiate the emergency call and is difficult to directly connect with the access point, so that the network node which can provide the corresponding emergency call service is selected as the relay node, the relay service can be rapidly and efficiently utilized to realize the emergency call, and the success rate and the efficiency of the emergency call are improved.
A signaling flow diagram of some embodiments of the emergency call method of the present disclosure is shown in fig. 3.
In the preamble preparation step 310, a network node (referred to as a relay node 32 in the figure) providing a relay service is registered in a 5G network, and a PDU session is established while an emergency number set issued by the network is stored in the registration process.
In 311, when the Remote node 31 (Remote UE) intends to initiate an emergency communication call (e.g., dial 110), it looks for a suitable relay node through the model B5G ProSe Discovery (proximity service discovery) procedure. In some embodiments, the relay node discovery process may be initiated by piggybacking the emergency communication service identification and the emergency communication destination number in Discovery Solicitation Message (discovery request information).
In 312, the relay node 32 receives Discovery Solicitation Message and determines that the emergency communication service identifier is included therein, and determines that the current request is a relay service request that requires a relay service to be provided. The relay node triggers execution 313 after determining that the emergency communication destination number is in its own saved emergency number list and that itself satisfies the condition as a relay node for the remote node 31.
In 313, the relay node 32 returns relay node feedback information to the remote node 31.
In 314, the remote node 31 and the relay node 32 establish a unicast mode communication connection and communicate the emergency communication service identification and the emergency communication destination number to the relay node 32.
In 315, the relay node 32 decides to initiate emergency communication traffic to the 5G network in place of the Remote node Remote UE, triggering execution 316.
In 316, the relay node 32 initiates a Service Request to the AMF 34, the Service type of the Service Request being emergency Service fallback (Emergency Service Fallback).
In 317, the AMF 34 returns an N2 interface based emergency request (N2 Request for emergency fallback) to the NG-RAN (NG-Radio Access Network,5G radio access network).
In 318, a 5G Prose Direct Communication (5G proximity services direct communication) is maintained between the relay node 32 and the remote node, and a normal IMS emergency communication call connection is established between the relay node 32 and the emergency communication destination number. The relay node 32 establishes a normal IMS (EPS (Evolved Packet System, evolved packet system) fallback) emergency communication call connection for the remote node 31.
By the method in the embodiment, the 5G ProSe Direct Discovery flow message and the information carried in the message are improved, so that the relay discovery for the emergency call initiation can be discovered as soon as possible; the relay node can determine whether the relay node can support the relay service for the emergency call in advance, so that the reliability of relay node selection is improved. In some embodiments, the above improvement on the node performing the relay service is conveniently implemented by a software upgrade, which is beneficial to improving deployment efficiency and promoting popularization and application.
A schematic diagram of some embodiments of a network node 40 of the present disclosure is shown in fig. 4. The network node 40 may act as a relay node providing relay services for the remote nodes.
The request acquisition unit 41 is capable of acquiring a relay discovery request from a remote node.
The connection establishment unit 42 is capable of resolving the relay discovery request to determine whether an emergency call identifier is carried therein. If the emergency call identifier is carried in the network node, judging whether the current network node meets the emergency call relay requirement of the remote node. In some embodiments, the emergency call relay requirements may include whether emergency call requirements required by the remote node are supported, and may also include whether relay service requirements required by the remote node are supported. The connection establishment unit 42 establishes a Unicast communication connection with the remote node, if it determines that the current network node is able to meet the emergency call relay requirements of the remote node. In some embodiments, the connection establishment unit 42 may send relay discovery feedback information to the remote node informing the remote node to establish the unicast communication connection.
The information acquisition unit 43 is capable of acquiring the emergency communication service identification and the emergency communication destination number from the remote node by the network node during the unicast communication connection establishment.
The call sending unit 44 can determine that the current call is an emergency call according to the received emergency communication service identifier, and further send an emergency call request to the network side by using the emergency communication destination number as the called number. The call transmitting unit 44 may initiate an emergency call request to the core network by transmitting a service request of which the service type is an emergency service fallback to the AMF.
The network node can identify the emergency call requirement of the remote node in the relay discovery request, and then establishes the device-to-device connection with the terminal under the condition that the network node can provide corresponding relay service, replaces the remote terminal to initiate the emergency call request to the network side and serves as a relay between the remote terminal and the network side, so that the remote node can rapidly and efficiently utilize the relay service to realize the emergency call, the emergency call failure caused by the fact that the connected relay node cannot provide the emergency call service is avoided, and the success rate and the efficiency of the emergency call are improved.
In some embodiments, as shown in fig. 5, the connection establishment unit 52 may include a first determination subunit 521, a second determination subunit 522, and a connection establishment subunit 523. The first determination subunit 521 can determine whether the emergency call identifier is included in the relay discovery request. The second judging subunit 522 is capable of judging whether or not the emergency communication destination number is in a set of pre-stored emergency numbers and whether or not a condition as a relay node is satisfied in a case where the emergency call identifier is included in the relay discovery request. The connection establishment subunit 523 is capable of establishing a unicast communication connection with the remote node in the case where the emergency communication target number is in a pre-stored emergency number set and meets the condition as a relay node.
The network node can timely find out that the current relay finding request is a request for emergency call, and then establish unicast communication connection with the remote node only when the network node determines that the network node can provide relay service and provide relay service corresponding to the emergency call, thereby improving the reliability of the relay service and the success rate of emergency call establishment.
In some embodiments, as shown in fig. 4, the network node may further include a number set obtaining unit 45, capable of pre-establishing a connection with the 5G core network, obtaining and storing an emergency number set issued by the 5G network, and ensuring that a PDN session with the 5G core network is established.
In some embodiments, as shown in fig. 4, the network node may further include a communication maintenance unit 46, capable of serving as a relay node between the remote node and the 5G core network, to maintain an emergency communication call connection between the remote node and the 5G core network, so as to ensure smooth progress of the emergency communication.
A schematic diagram of further embodiments of a network node 60 of the present disclosure is shown in fig. 6.
The requesting unit 61 is capable of generating and transmitting a relay discovery request including an emergency call identification. In some embodiments, the request unit 61 may send a relay discovery request to find a network node capable of providing a relay service, in case that the current network node is found to be far away from an access point (e.g. a base station) capable of providing an access service. In some embodiments, the relay discovery request may be transmitted in the form of a broadcast. In some embodiments, the request unit 61 may generate a relay discovery request in a case where an emergency call needs to be made and the request unit is far away from an access point (such as a base station) capable of providing an access service, and carry an emergency call identifier in the relay discovery request. In some embodiments, the relay discovery request may also carry an emergency communication destination number (e.g., 110, 119, etc.).
The connection unit 62 is capable of establishing a unicast communication connection with a network node upon receiving relay discovery feedback information from other network nodes. In some embodiments, when the connection unit 62 receives a plurality of relay discovery feedback information, one network node may be selected to provide relay services according to a predetermined policy. In some embodiments, the predetermined policy may include selecting according to one or more of a priority of the network node, a quality of service that can be provided, or a degree of stability.
The information providing unit 63 can send the emergency communication service identification and the emergency communication destination number to the opposite network node that establishes the on-demand communication connection, so that the opposite network node initiates an emergency call request to the network side.
Under the condition that the network node needs to initiate the emergency call and is difficult to directly connect with the access point, the relay node discovery process informs the candidate relay node of the need of providing the emergency call service, so that the node which can provide the corresponding emergency call service is selected as the relay node, the relay service can be rapidly and efficiently utilized to realize the emergency call, and the success rate and the efficiency of the emergency call are improved.
A schematic structural diagram of one embodiment of a network node of the present disclosure is shown in fig. 7. The network node comprises a memory 701 and a processor 702. Wherein: memory 701 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used to store instructions in the corresponding embodiments of the emergency call method above. Processor 702 is coupled to memory 701 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 702 is configured to execute instructions stored in the memory to improve call success rate of emergency communications.
In one embodiment, as also shown in fig. 8, network node 800 includes a memory 801 and a processor 802. The processor 802 is coupled to the memory 801 by a BUS 803. The network node 800 may also be connected to external storage 805 via a storage interface 804 for invoking external data, and may also be connected to a network or another computer system (not shown) via a network interface 806. And will not be described in detail herein.
In this embodiment, the call success rate of the emergency communication can be improved by storing the data instruction in the memory and processing the instruction by the processor.
In another embodiment, a computer readable storage medium has stored thereon computer program instructions which when executed by a processor implement the steps of the method of the corresponding embodiment of the emergency call method. It will be apparent to those skilled in the art that embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, firmware. The above-described sequence of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the sequence specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present disclosure may also be implemented as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure and are not limiting thereof; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will appreciate that: modifications may be made to the specific embodiments of the disclosure or equivalents may be substituted for part of the technical features; without departing from the spirit of the technical solutions of the present disclosure, it should be covered in the scope of the technical solutions claimed in the present disclosure.
Claims (14)
1. An emergency call method, comprising:
the network node acquires a relay discovery request from a remote node;
if the relay discovery request is determined to meet the emergency call relay requirement of the remote node under the condition that the relay discovery request comprises an emergency call identifier, unicast communication connection with the remote node is established;
the network node acquires an emergency communication service identifier and an emergency communication target number from the remote node;
and the network node sends an emergency call request to a network side according to the emergency communication service identifier and the emergency communication target number.
2. The method of claim 1, wherein the relay discovery request further includes an emergency communication destination number;
the determining that the emergency call relay requirement of the remote node is met includes:
the network node determines that the emergency communication target number is in a pre-stored emergency number set and meets the condition of serving as a relay node, and determines that the emergency call relay requirement of the remote node is met.
3. The method of claim 1, wherein the emergency call identity is the same as the emergency communication service identity.
4. The method of claim 2, further comprising:
the network node establishes a connection with a 5G core network;
and acquiring and storing the emergency number set issued by the 5G network.
5. The method of claim 1, wherein the sending the emergency call request to the network side comprises: the network node sends a service request with the service type of emergency service fallback to an AMF;
further comprises:
the network node is used as a relay node between the remote node and the 5G core network, and maintains the emergency communication call connection between the remote node and the 5G core network.
6. An emergency call method, comprising:
generating and transmitting a relay discovery request, wherein the relay discovery request comprises an emergency call identifier;
under the condition that relay discovery feedback information from a network node is received, unicast communication connection with the network node is established, wherein the network node feeds back the relay node feedback information under the condition that the relay discovery request comprises an emergency call identifier and the emergency call relay requirement of the remote node is determined;
and sending the emergency communication service identifier and the emergency communication target number to the network node so that the network node initiates an emergency call request to a network side.
7. The method of claim 6, wherein the relay discovery request further includes the emergency communication destination number;
and the relay node determines to meet the emergency call relay requirement of the remote node under the condition that the emergency communication target number is determined to be in a pre-stored emergency number set and meets the condition of serving as the relay node.
8. A network node, comprising:
a request acquisition unit configured to acquire a relay discovery request from a remote node;
a connection establishment unit configured to establish a unicast communication connection with the remote node if it is determined that the emergency call relay requirement of the remote node is met, in the case where it is determined that the emergency call identifier is included in the relay discovery request;
an information acquisition unit, configured to acquire an emergency communication service identifier and an emergency communication destination number from the remote node;
and the call sending unit is configured to send an emergency call request to a network side according to the emergency communication service identifier and the emergency communication target number.
9. The node of claim 8, wherein the relay discovery request further includes an emergency communication destination number;
the connection establishment unit includes:
a first judging subunit configured to determine whether the emergency call identifier is included in the relay discovery request;
the second judging subunit is configured to judge whether the emergency communication target number is in a pre-stored emergency number set or not and whether a condition as a relay node is met or not, in the case that the emergency call identifier is included in the relay discovery request;
a connection establishment subunit configured to establish a unicast communication connection with the remote node, in a case where the emergency communication target number is in a pre-stored emergency number set and meets a condition as a relay node.
10. The node of claim 8, further comprising:
the number set acquisition unit is configured to establish connection with a 5G core network, acquire and store an emergency number set issued by the 5G network.
11. The node of claim 8, wherein the call sending unit is configured to send a service request with a service type of emergency service fallback to an AMF;
further comprises:
and a communication maintaining unit configured to maintain an emergency communication call connection between the remote node and the 5G core network as a relay node between the remote node and the 5G core network.
12. A network node, comprising:
a request unit configured to generate and transmit a relay discovery request, the relay discovery request including an emergency call identifier;
a connection unit configured to establish unicast communication connection with a network node that transmits the relay node feedback information in case of receiving the relay discovery feedback information, wherein the network node feeds back the relay node feedback information in case of determining that the relay discovery request includes an emergency call identifier and determining that the emergency call relay requirement of the remote node is met;
and the information providing unit is configured to send the emergency communication service identifier and the emergency communication target number to the opposite-end network node for establishing the unicast communication connection so that the opposite-end network node initiates an emergency call request to a network side.
13. A network node, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-7 based on instructions stored in the memory.
14. A non-transitory computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210466059.4A CN117014846A (en) | 2022-04-29 | 2022-04-29 | Emergency call method, network node and storage medium |
| PCT/CN2022/125951 WO2023206987A1 (en) | 2022-04-29 | 2022-10-18 | Emergency call method, network node and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210466059.4A CN117014846A (en) | 2022-04-29 | 2022-04-29 | Emergency call method, network node and storage medium |
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| Publication Number | Publication Date |
|---|---|
| CN117014846A true CN117014846A (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210466059.4A Pending CN117014846A (en) | 2022-04-29 | 2022-04-29 | Emergency call method, network node and storage medium |
Country Status (2)
| Country | Link |
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| CN (1) | CN117014846A (en) |
| WO (1) | WO2023206987A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220394592A1 (en) * | 2019-11-28 | 2022-12-08 | Apple Inc. | Access Control at a Relay User Equipment |
| US11812481B2 (en) * | 2020-03-06 | 2023-11-07 | Qualcomm Incorporated | Layer 2 relay unicast link setup |
| CN113596804B (en) * | 2020-04-30 | 2022-07-08 | 维沃移动通信有限公司 | State indication method, device and system |
| US20220110187A1 (en) * | 2020-10-01 | 2022-04-07 | Apple Inc. | Emergency Communication Routing for Non-cellular Coverage |
| US11924732B2 (en) * | 2020-10-01 | 2024-03-05 | Apple Inc. | Emergency communication in non-cellular coverage |
-
2022
- 2022-04-29 CN CN202210466059.4A patent/CN117014846A/en active Pending
- 2022-10-18 WO PCT/CN2022/125951 patent/WO2023206987A1/en unknown
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| WO2023206987A1 (en) | 2023-11-02 |
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