CN106658752B - Communication resource confirmation method, device and system - Google Patents

Communication resource confirmation method, device and system Download PDF

Info

Publication number
CN106658752B
CN106658752B CN201510734020.6A CN201510734020A CN106658752B CN 106658752 B CN106658752 B CN 106658752B CN 201510734020 A CN201510734020 A CN 201510734020A CN 106658752 B CN106658752 B CN 106658752B
Authority
CN
China
Prior art keywords
calling
information
state
resource
communication resource
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510734020.6A
Other languages
Chinese (zh)
Other versions
CN106658752A (en
Inventor
高晨亮
王小旭
李丽芳
张兆翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
Original Assignee
China Mobile Communications Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd filed Critical China Mobile Communications Group Co Ltd
Priority to CN201510734020.6A priority Critical patent/CN106658752B/en
Publication of CN106658752A publication Critical patent/CN106658752A/en
Application granted granted Critical
Publication of CN106658752B publication Critical patent/CN106658752B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a communication resource confirmation method, which comprises the following steps: a calling UE receives first information sent by a network side; the first information carries a session description protocol SDP offer; when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side, so that the network side generates third information carrying the SDP answer according to the second information, and sending the third information to called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation. The invention also discloses a device and a system for confirming the communication resources.

Description

Communication resource confirmation method, device and system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for confirming a communication resource.
Background
With the rapid development of Long Term Evolution (LTE) networks, many operators adopt volte (voice over LTE) as their voice solution. VoLTE is a voice service based on IP Multimedia Subsystem (IMS), is an IP data transmission technology, and all services are carried on a 4G network, so that unification of data and voice services in the same network can be achieved.
In the existing User no-answer forward flow of the VoLTE voice service, a process of communication resource confirmation between calling User Equipment (UE) and called UE, which is the same as that in the point-to-point flow, is included, the process is to perform resource confirmation by sending a new UPDATE message through the calling UE, and the called UE replies a 200ok message after receiving the UPDATE message of the calling UE, and then performs ringing operation; however, if the communication resource of the calling UE is reserved successfully before the calling UE sends the UPDATE message, the communication resource determination process still needs to be performed, which may prolong the call connection delay and increase the signaling overhead of the network side and the terminal side.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a method, an apparatus, and a system for confirming communication resources, which can reduce call connection delay, reduce signaling overhead of a network side and a terminal side, and enhance user experience.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a communication resource confirmation method, which comprises the following steps:
a calling UE receives first information sent by a network side; the first information carries a Session Description Protocol (SDP) offer;
when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side, so that the network side generates third information carrying the SDP answer according to the second information, and sending the third information to called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In the above solution, the first state is used to represent that the calling communication resource has been successfully reserved;
correspondingly, the determining that the current state of the calling communication resource is the first state includes:
and the calling UE determines that the reservation of the current calling communication resource is successful through the communication with the network side.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
In the above solution, the state of the resource state parameter is set to sendrecv to indicate that the state of the calling communication resource is the first state.
The embodiment of the invention also provides a communication resource confirmation method, which comprises the following steps:
the network side sends first information to calling UE; the first information carries an SDP offer;
receiving second information carrying an SDP answer sent by the calling UE when the calling communication resource state is determined to be a first state, generating third information carrying the SDP answer according to the second information, and sending the third information to the called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In the foregoing solution, before the network side sends the first information to the calling UE, the method further includes:
the network side receives fourth information sent by the called UE and generates the first information according to the fourth information; the fourth information carries the SDP offer.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
In the scheme, the state of the resource state parameter is set to sendrecv to indicate that the state of the calling communication resource is a first state; the first state is used for representing that the calling communication resource is reserved successfully.
The embodiment of the invention also provides a communication resource confirmation method, which comprises the following steps:
the called UE receives third information which is sent by a network side and carries an SDP answer; the third information is generated by the network side according to the second information which is sent by the calling UE when the calling communication resource state is determined to be the first state and carries the SDP answer;
and directly carrying out ringing operation according to the third information.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the directly performing the ringing operation according to the third information includes:
and the called UE directly performs ringing operation according to the resource state parameter which is carried by the SDP answer in the third information and indicates that the calling communication resource state is the first state.
In the scheme, the state of the resource state parameter is set to sendrecv to indicate that the state of the calling communication resource is a first state; the first state is used for representing that the calling communication resource is reserved successfully.
The embodiment of the invention also provides a communication resource confirmation device, which is positioned at the calling UE and comprises the following components: the device comprises a first receiving module and a first sending module; wherein the content of the first and second substances,
the first receiving module is used for receiving first information sent by a network side; the first information carries SDPoffer;
the first sending module is used for sending second information carrying SDPanswer to the network side when the current calling communication resource state is determined to be the first state, so that the network side generates third information carrying SDP answer according to the second information and sends the third information to the called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In the above solution, the first state is used to represent that the calling communication resource has been successfully reserved;
correspondingly, the first sending module is specifically configured to determine that the current calling communication resource reservation is successful through communication with the network side.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
The embodiment of the invention also provides a communication resource confirmation device, which is positioned at a network side and comprises: a second receiving module and a second sending module; wherein the content of the first and second substances,
the second sending module is used for sending the first information to the calling UE; the first information carries an SDP offer;
the second receiving module is configured to receive second information carrying an SDP answer, which is sent by the calling UE when it is determined that the state of the calling communication resource is the first state, generate third information carrying the SDP answer according to the second information, and send the third information to the called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In the above scheme, the second receiving module is further configured to receive fourth information sent by the called UE, and generate the first information according to the fourth information; the fourth information carries the SDP offer.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
The embodiment of the invention also provides a communication resource confirmation device, which is positioned at called UE and comprises: a third receiving module and a processing module; wherein the content of the first and second substances,
the third receiving module is used for receiving third information which is sent by a network side and carries an SDP answer; the third information is generated by the network side according to the second information which is sent by the calling UE and carries the SDPanswer when the calling communication resource state is determined to be the first state;
and the processing module is used for directly carrying out ringing operation according to the third information.
In the above scheme, the SDP answer carries the status parameters of the calling resource; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the processing module is specifically configured to perform the ringing operation directly according to the resource state parameter, which is carried in the SDP answer in the third information and indicates that the calling communication resource state is the first state.
In the scheme, the state of the resource state parameter is set to sendrecv to indicate that the state of the calling communication resource is a first state; the first state is used for representing that the calling communication resource is reserved successfully.
The embodiment of the invention also provides a communication resource confirmation system, which comprises: calling UE, a network side and called UE; wherein the content of the first and second substances,
the network side is used for sending first information to the calling UE; the first information carries an SDP offer;
the calling UE is used for receiving the first information and sending second information carrying an SDP answer to a network side when the current calling communication resource state is determined to be the first state; the SDP answer is used for indicating the called UE to directly carry out ringing operation;
the network side is further configured to generate third information carrying an SDP answer according to the second information, and send the third information to the called UE;
and the called UE is used for directly ringing according to the SDP answer in the third information.
According to the communication resource confirmation method, the device and the system provided by the embodiment of the invention, the calling UE receives the first information sent by the network side; the first information carries a session description protocol SDP offer; when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side, so that the network side generates third information carrying the SDP answer according to the second information, and sending the third information to called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation. Therefore, the called UE can directly perform ringing operation according to the SDP answer in the third information without waiting for the UPDATE message for resource confirmation sent by the calling UE, thereby shortening call connection time delay, reducing signaling overhead of a network side and a terminal side and enhancing user experience.
Drawings
Fig. 1 is a timing diagram of a point-to-point call flow of a VoLTE voice service;
fig. 2 is a timing diagram of a no-response forwarding flow of the VoLTE voice service;
fig. 3 is a flowchart illustrating a communication resource confirmation method according to an embodiment of the invention;
fig. 4 is a flow chart illustrating a method for confirming a communication resource according to an embodiment of the present invention;
FIG. 5 is a timing diagram illustrating a resource confirmation method according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a communication resource confirmation apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a configuration of a communication resource confirmation apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a communication resource confirmation apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a communication resource confirmation system according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic view of a point-to-point call flow of VoLTE voice service, and as shown in fig. 1, the point-to-point call flow includes:
step 1: a call request of a calling subscriber ue (o) is sent to a calling Session control (SBC, Session border controller); the call request includes a precondition related parameter, wherein the calling side and the called side are both none.
Step 2: the calling SBC applies for call resources (temporary) to Policy and Charging Control (PCC) and requests the calling subscriber location information at the same time.
Step 3-4: a calling side Policy and Charging Rules Function (PCRF) issues policies to the S/P-GW.
And 5: the PCRF at the calling side returns an AAA response to the SBC.
Step 6-8: the calling side reserves the wireless side resource, and the Mobile Management Entity (MME) carries the calling position information (TAI + E-CGI) in the message 8.
Step 9-10: and the S/P-GW returns the calling position information to the PCRF.
Step 11-12: and the PCRF reports the calling location information to the SBC.
Step 13-16: the calling side completes service triggering, a calling Application Server (AS) performs called number completion, and then a calling S-CSCF acquires a called I-CSCF address by inquiring ENUM/DNS and sends a call request to the called I-CSCF.
Step 17-18: the called I-CSCF queries a Home Subscriber Server (HSS) to acquire the S-CSCF registered by the called user.
Step 19: the called party triggers to VoLTE AS, and triggers SCCAS after the triggering of the basic calling and the supplementary service is finished.
Step 20: SCCAS selects the called domain and inquires T-ADS information from HSS.
Step 23: and the HSS returns T-ADS information to the SCCAS, wherein the T-ADS information comprises IMS Voice over PS supported information.
Step 24-26: the call request is forwarded to the called UE.
Step 27: the called UE returns 183 that contains the called SDP information, and the calling side and the called side in the precondition parameter are both none.
Step 28-34: the called side applies for the call resources.
Step 35-42: 183 the response is forwarded to the caller along the call path.
Step 44-50: and the calling side modifies the resource application according to the negotiation result.
Step 51-59: the calling UE initiates UPDATE for resource confirmation to the called side, wherein the precondition parameter is that the local state of the calling side is sendecv, and the called side is none.
Step 60-68: the called UE returns 200OK to the calling party, wherein the precondition parameters are sendrecv for both the calling party and the called party.
Step 69-71: the calling party and the called party finish the call signaling process, and the two parties start to talk.
Step 72-74: the calling side hangs up, and the UE sends a BYE message to the SBC, and then the message is forwarded to the called SBC and the UE.
Step 75-81: and the calling side releases the resources.
Step 82-88: the called side releases resources.
As can be seen from the point-to-point call flow, in order to make the called end know that the resources of the calling call are successfully reserved, the calling end needs to send an UPDATE message for resource confirmation, that is, the resource confirmation process of steps 51 to 68 needs to be executed;
fig. 2 is a schematic diagram of a no-response forwarding flow of the VoLTE voice service, and as shown in fig. 2, the no-response forwarding flow includes:
step 1: steps 1-70 in fig. 1 are executed to perform the negotiation ringing of the calling party and the called party.
Step 2-3: the called party does not answer, the network side no-answer timer is overtime, and the network sends cancel message to the called party.
And 4-5: the called party replies to the network with a 200ok message.
Step 6: the terminal interacts 487 with the network to terminate the call.
And 7-9: the network side sends 181 a forward message to the caller informing the caller that the call was forwarded.
Step 10-12: the network side sends a request invite message of the empty SDP to the called party.
Step 13-15: the called reply 183 message carries the SDP offer, and the local resource parameter carried in the SDP offer and the resource state in the opposite end resource parameter remote are none.
Step 16-18: the network side sends an update message to the calling party, wherein the SDP offer is carried, and the local and remote resource states carried in the SDP offer are none.
Step 19-21: the caller replies to 200ok carrying SDP answer, where the resource status in local and remote carried in SDP offer are both none.
And 22-24: the network side sends PRACK to the called party, wherein the called party carries an SDP answer, and the local resource state and the remote resource state carried in the SDP answer are both none.
Step 25-27: the called party replies 200ok to the network side.
Step 28: the calling party and the called party perform resource confirmation ringing and the like, namely, execute the steps 51-89 in the figure 1.
It can be clearly seen that, in the above no-answer forwarding flow, no matter whether the calling UE successfully reserves the calling call resource before performing the secondary resource confirmation (step 28), the same resource confirmation process as that in steps 51-68 in fig. 1 needs to be performed in step 28, and if the calling UE successfully reserves the calling call resource before receiving the SDP offer, the above resource confirmation process is still performed, which will undoubtedly increase the call delay and increase the signaling overhead of the network side and the terminal side.
In the embodiment of the invention, calling UE receives first information sent by a network side; the first information carries a session description protocol SDP offer; when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side, so that the network side generates third information carrying the SDP answer according to the second information, and sending the third information to called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
Example one
Fig. 3 is a schematic flow chart of a communication resource confirmation method according to an embodiment of the present invention, which is applied to a no-response forwarding process, and as shown in fig. 3, the communication resource confirmation method according to the embodiment of the present invention includes:
step 301: a calling UE receives first information sent by a network side;
here, the first information carries an SDP offer; in one embodiment, the first information is an UPDATE request message;
the UPDATE request message is generated by the network side according to a call request response message sent by called UE; the called UE is a UE to which the call is forwarded in the no-answer forwarding flow, such as UE (c) in fig. 2; the call request response message carries the SDP offer.
In an embodiment, before this step, the method further includes: the network side receives fourth information sent by the called UE and generates the first information according to the fourth information; the fourth information carries the SDP offer;
here, the fourth information may be a call request response message, i.e., 183 message.
Step 302: when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side;
in an embodiment, the first state is used to characterize that the calling communication resource has been successfully reserved;
correspondingly, the determining that the current state of the calling communication resource is the first state includes:
the calling UE determines that the reservation of the current calling communication resource is successful through the communication with the network side; the method specifically comprises the following steps: the calling UE determines that the reservation of the current calling communication resource is successful through an air interface signaling flow; the calling communication resource may be a calling communication resource.
In an embodiment, the second information is used for the network side to generate third information carrying an SDP answer according to the second information, and send the third information to the called UE;
here, when the first information is an UPDATE request message, correspondingly, the second information is an UPDATE response message, and the third information is a PRACK confirmation message generated according to the UPDATE response message.
In an embodiment, the SDP answer carries the calling resource status parameter local; the calling resource state parameter is used for indicating the current state of the calling communication resource;
the state of the calling communication resource comprises a first state and a second state; the second state is used for representing that the calling communication resource is not reserved successfully;
specifically, the state of the resource state parameter is set to sendrecv to indicate that the state of the calling communication resource is a first state; and indicating that the state of the calling communication resource is the second state by setting the state of the resource state parameter to be a none state.
In the embodiment of the present invention, the SDP answer is used to indicate the called UE to perform ringing operation directly, and specifically, the SDP answer indicates the called UE to perform ringing operation directly by carrying a resource state parameter indicating that a calling communication resource state is a first state, that is, indicates the called UE to perform ringing operation directly by carrying an indication resource state parameter sendrecv;
here, the called UE directly performs a ringing operation, i.e. sends 180ringing to the calling UE.
In one embodiment, the first information is an UPDATE request message;
when the calling UE determines that the current state of the calling communication resource is the second state, namely the calling resource is not reserved successfully, the calling UE sends an UPDATE response message carrying an SDP answer to the network side, the state of a resource state parameter in the SDP answer is a none, so that the network side generates a corresponding PRACK message carrying the SDP answer according to the UPDATE response message and sends the PRACK message to the called UE, the called UE knows that the communication resource of the calling UE is not reserved successfully according to the none carried by the SDP answer in the PRACK message, and then the calling UE continues to wait for the UPDATE message for resource confirmation sent by the calling UE.
In the embodiment of the invention, the called UE receives third information which is sent by a network side and carries an SDP answer, analyzes the third information to obtain that the state of a calling resource state parameter carried in the SDP answer is sendrecv, and determines that the calling communication resource is successfully reserved according to the sendrecv, and the called UE performs ringing operation. Therefore, the process that the calling UE sends a new UPDATE message to confirm the resources is omitted, the call delay is shortened, and the signaling overhead of the network side and the terminal side is reduced.
Example two
Fig. 4 is a schematic flow chart illustrating a method for confirming a communication resource according to an embodiment of the present invention, where in the embodiment of the present invention, the first information is an UPDATE request message; fig. 5 is a timing diagram of a resource confirmation method according to an embodiment of the present invention, which is applied to a no-response forwarding process, and as shown in fig. 4 and 5, the communication resource confirmation method according to the embodiment of the present invention includes:
step 401: the network side sends UPDATE request information to the calling UE;
before this step, the method further comprises: a network side receives a call request response message (183 response message) sent by called UE, and generates an UPDATE request message according to the call request response message; specifically, the AS generates the UPDATE request message according to the call request response message, and sends the UPDATE request message to the calling UE through a core network; the call request response message carries an SDP offer, and the UPDATE request message also carries the SDP offer;
here, the operation before the called UE transmits the call request response message is shown in fig. 5.
Step 402: the calling UE receives the UPDATE request message, judges whether the current calling communication resource is reserved successfully, if so, executes step 403; otherwise, go to step 406;
here, the determining that the reservation of the current calling communication resource is successful includes:
the calling UE judges whether the reservation of the current calling communication resource is successful or not through an air interface signaling flow; the calling communication resource may be a calling communication resource.
Step 403: the calling UE sends a first UPDATE response message to the network side;
in this embodiment of the present invention, the first UPDATE response message may be a 200OK message; as shown in fig. 5, fig. 5 is a timing diagram of when the calling UE determines that the current calling call resource reservation is successful; the UPDATE response message carries SDPage, and the SDP answer carries calling resource status parameter local; in the embodiment of the present invention, the calling resource status parameter is used to indicate whether the calling communication resource is successfully reserved;
specifically, in the embodiment of the present invention, the resource state parameter carried by the SDP answer is sendrecv; the SDP answer indicates that the reservation of the calling communication resource has been successful by setting the status of the local to sendrecv.
Step 404: the network side generates a corresponding first PRACK confirmation message according to the first UPDATE response message and sends the first PRACK message to the called UE;
here, the first PRACK message carries the same SDP answer as in the first UPDATE response message, i.e., the first PRACK message may also indicate that the reservation of the calling communication resource is successful.
Step 405: the called UE directly performs ringing operation according to the first PRACK message;
in one embodiment, the method specifically includes: and the called UE analyzes the first PRACK message, obtains the state of the calling resource state parameter as sendrecv, determines that the calling communication resource is successfully reserved according to the sendrecv, and performs ringing operation, namely sends a 180ringing message to the calling UE. Therefore, the process that the calling UE sends a new UPDATE message to confirm the resources is omitted, the call delay is shortened, and the signaling overhead of the network side and the terminal side is reduced.
Step 406: the calling UE sends a second UPDATE response message to the network side;
here, the second UPDATE response message carries an SDP answer whose resource status parameter is none; and the resource state parameter none carried by the SDPanswer indicates that the current calling communication resource is not reserved successfully.
Step 407: the network side generates a corresponding second PRACK confirmation message according to the second UPDATE response message and sends the second PRACK message to the called UE;
here, the second PRACK message carries an SDP answer whose resource status parameter is none; thus, when the called UE receives and analyzes the second PRACK message, it obtains that the resource state parameter carried by the SDP answer is none, and it can be known that the current calling communication resource is not successfully reserved, and it is necessary to continue to wait for the UPDATE message for resource confirmation sent by the calling UE.
EXAMPLE III
Fig. 6 is a schematic diagram illustrating a communication resource confirmation apparatus according to an embodiment of the present invention; the apparatus is located at a calling UE; as shown in fig. 6, the apparatus for confirming communication resources according to the embodiment of the present invention includes: a first receiving module 61 and a first transmitting module 62; wherein the content of the first and second substances,
the first receiving module 61 is configured to receive first information sent by a network side; the first information carries SDPoffer;
the first sending module 62 is configured to send, when it is determined that the current state of the calling communication resource is the first state, second information carrying an SDP answer to the network side, so that the network side generates third information carrying the SDP answer according to the second information, and sends the third information to the called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In this embodiment of the present invention, the first information is an UPDATE request message, correspondingly, the second information is an UPDATE response message, and the third information is a PRACK message.
In an embodiment of the invention, the first state is used for representing that the calling communication resource is successfully reserved;
correspondingly, the first sending module 62 is specifically configured to determine that the current calling communication resource reservation is successful through communication with the network side; in an embodiment, the first sending module 62 determines whether the current calling communication resource is successfully reserved through an air interface signaling flow.
In an embodiment, the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to directly carry out ringing operation by carrying resource state parameters indicating that the state of the calling communication resource is a first state;
the SDP answer carries calling resource state parameters; the calling resource state parameter is used for indicating the current state of the calling communication resource;
the SDP answer indicates that the state of the calling communication resource is a first state by setting the state of the calling resource state parameter to sendrecv; and the called UE analyzes the third information to obtain that the state of the calling resource state parameter is sendrecv, and the called UE performs ringing operation according to the sendrecv after the calling communication resource is successfully reserved.
In an embodiment, the first sending module 62 is further configured to send, when determining that the current state of the calling communication resource is the second state, fifth information carrying an SDP answer to the network side, so that the network side generates, according to the fifth information, sixth information carrying the SDP answer, and sends the sixth information to the called UE;
here, the second state represents that the calling communication resource of the calling UE is not successfully reserved;
the SDP answer carries a resource state parameter none to indicate that the calling communication resource is not reserved successfully; therefore, the called UE knows that the calling communication resource is not successfully reserved according to the resource status parameter none, and needs to continue to wait for the UPDATE message for resource confirmation sent by the calling UE.
Example four
Fig. 7 is a schematic diagram illustrating a configuration of a communication resource confirmation apparatus according to an embodiment of the present invention; the device is located on the network side; as shown in fig. 7, the apparatus for confirming communication resources according to the embodiment of the present invention includes: a second receiving module 71 and a second transmitting module 72; wherein the content of the first and second substances,
the second sending module 72 is configured to send the first information to the calling UE; the first information carries SDPoffer;
the second receiving module 71 is configured to receive second information carrying an SDP answer, which is sent by the calling UE when it is determined that the state of the calling communication resource is the first state, generate third information carrying the SDP answer according to the second information, and send the third information to the called UE; and the SDP answer is used for indicating the called UE to directly carry out ringing operation.
In this embodiment of the present invention, the first information is an UPDATE request message, correspondingly, the second information is an UPDATE response message, and the third information is a PRACK message.
In an embodiment, the second receiving module 71 is further configured to receive fourth information sent by the called UE, and generate the first information according to the fourth information; the fourth information carries the SDP offer;
here, the fourth information is a call request response message, that is, a 183 response message, sent by the called UE; the call request response message carries the SDP offer.
In an embodiment, the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to directly carry out ringing operation by carrying resource state parameters indicating that the state of the calling communication resource is a first state;
specifically, the SDP answer indicates the first state by setting the state of the calling resource state parameter to sendrecv, that is, the calling communication resource has been successfully reserved, so that the called UE parses the PRACK message, obtains the state of the calling resource state parameter as sendrecv, determines that the calling communication resource has been successfully reserved according to the sendrecv, and performs ringing operation on the called UE;
and the SDP answer indicates the second state by setting the state of the calling resource state parameter to none, namely that the calling communication resource is not reserved successfully.
EXAMPLE five
Fig. 8 is a schematic diagram illustrating a structure of a communication resource confirmation apparatus according to an embodiment of the present invention; the apparatus is located at a called UE; as shown in fig. 8, the apparatus for confirming communication resources according to the embodiment of the present invention includes: a third receiving module 81 and a processing module 82; wherein the content of the first and second substances,
the third receiving module 81 is configured to receive third information carrying an SDP answer sent by a network side; the third information is generated by the network side according to the second information which is sent by the calling UE and carries the SDPanswer when the calling communication resource state is determined to be the first state;
the processing module 82 is configured to perform a ringing operation directly according to the third information.
In this embodiment of the present invention, the first information is an UPDATE request message, correspondingly, the second information is an UPDATE response message, and the third information is a PRACK message.
In an embodiment of the invention, the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the processing module 82 is specifically configured to perform the ringing operation directly according to the resource state parameter, which is carried in the SDP answer in the third information and indicates that the calling communication resource state is the first state.
In an embodiment of the invention, the state of the calling communication resource is indicated as a first state by setting the state of the resource state parameter to sendrecv; the first state is used for representing that the calling communication resource is reserved successfully.
EXAMPLE six
Fig. 9 is a schematic diagram illustrating a configuration of a communication resource confirmation system according to an embodiment of the present invention; as shown in fig. 9, the communication resource confirmation system according to the embodiment of the present invention includes: calling UE91, network side 92, and called UE 93; wherein the content of the first and second substances,
the network side 92 is configured to send first information to the calling UE; the first information carries an SDP offer;
the calling UE91 is configured to receive the first information, and send second information carrying an SDP answer to a network side when determining that the current state of the calling communication resource is the first state; the SDP answer is used for indicating the called UE to directly carry out ringing operation;
the network side 92 is further configured to generate third information carrying an SDP answer according to the second information, and send the third information to the called UE;
the called UE93 is configured to perform ringing operation directly according to the SDP answer in the third information.
In this embodiment of the present invention, the first information is an UPDATE request message, correspondingly, the second information is an UPDATE response message, and the third information is a PRACK message.
In an embodiment of the invention, the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
the current state of the calling communication resource comprises a first state and a second state; wherein the first state is used for representing that the calling communication resource is reserved successfully; the second state is used for representing that the calling communication resource is not reserved successfully;
specifically, the SDP answer indicates that the calling communication resource has been successfully reserved by setting the state of the calling resource state parameter to sendrecv; and indicating that the calling communication resource is not reserved successfully by setting the state of the calling resource state parameter as none.
In an embodiment, the called UE93 parses the third information to obtain sendrecv carried by an SDP answer in the third information, and it is known that the calling communication resource is successfully reserved, and a ringing operation may be directly performed; correspondingly, if the SDP answer carrying the none is obtained, it can be known that the calling communication resource is not successfully reserved, and the UE needs to continue to wait for the UPDATE message for resource confirmation sent by the calling UE.
In the embodiment of the present invention, the first receiving module 61, the first sending module 62, the second receiving module 71, the second sending module 72, the third receiving module 81, and the Processing module 82 may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or an Integrated Circuit (ASIC) in the terminal or the server.
Here, it should be noted that: the above description related to the apparatus and system is similar to the above description of the method, and the description of the beneficial effects of the method is omitted for brevity. For technical details not disclosed in the embodiments of the apparatus and system according to the present invention, reference is made to the description of the embodiments of the method according to the present invention.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (21)

1. A method for communication resource validation, the method comprising:
calling User Equipment (UE) receives first information sent by a network side; the first information carries a session description protocol SDPoffer;
when the current calling communication resource state is determined to be the first state, sending second information carrying the SDP answer to a network side, so that the network side generates third information carrying the SDP answer according to the second information, and sending the third information to called UE; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation.
2. The method of claim 1, wherein the first state is used to indicate that the calling communication resource has been successfully reserved;
correspondingly, the determining that the current state of the calling communication resource is the first state includes:
and the calling UE determines that the reservation of the current calling communication resource is successful through the communication with the network side.
3. The method of claim 1 or 2, wherein the SDP answer carries calling resource status parameters; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
4. The method of claim 3, wherein the calling communication resource status is the first status by setting the status of the resource status parameter to sendrecv.
5. A method for communication resource validation, the method comprising:
the network side sends first information to calling UE; the first information carries an SDP offer;
receiving second information carrying an SDP answer sent by the calling UE when the calling communication resource state is determined to be a first state, generating third information carrying the SDP answer according to the second information, and sending the third information to the called UE; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation.
6. The method of claim 5, wherein before the network side sends the first information to the calling UE, the method further comprises:
the network side receives fourth information sent by the called UE and generates the first information according to the fourth information; the fourth information carries the SDP offer.
7. The method of claim 5 or 6, wherein the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
8. The method of claim 7, wherein the calling communication resource status is indicated as the first status by setting the status of the resource status parameter to sendrecv; the first state is used for representing that the calling communication resource is reserved successfully.
9. A method for communication resource validation, the method comprising:
the called UE receives third information which is sent by a network side and carries an SDP answer; the third information is generated by the network side according to the second information which is sent by the calling UE when the calling communication resource state is determined to be the first state and carries the SDP answer; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation;
and directly carrying out ringing operation according to the third information.
10. The method of claim 9, wherein the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the directly performing the ringing operation according to the third information includes:
and the called UE directly performs ringing operation according to the resource state parameter which is carried by the SDP answer in the third information and indicates that the calling communication resource state is the first state.
11. The method of claim 10, wherein the calling communication resource status is indicated as the first status by setting the status of the resource status parameter to sendrecv; the first state is used for representing that the calling communication resource is reserved successfully.
12. A communication resource confirmation apparatus, the apparatus being located at a calling UE, the apparatus comprising: the device comprises a first receiving module and a first sending module; wherein the content of the first and second substances,
the first receiving module is used for receiving first information sent by a network side; the first information carries an SDP offer;
the first sending module is used for sending second information carrying SDPanswer to the network side when the current calling communication resource state is determined to be the first state, so that the network side generates third information carrying SDP answer according to the second information and sends the third information to the called UE; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation.
13. The apparatus as claimed in claim 12, wherein the first status is used to characterize that the calling communication resource has been successfully reserved;
correspondingly, the first sending module is specifically configured to determine that the current calling communication resource reservation is successful through communication with the network side.
14. The apparatus according to claim 12 or 13, wherein the SDP answer carries calling resource status parameters; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
15. A communication resource confirmation apparatus, wherein the apparatus is located at a network side, the apparatus comprising: a second receiving module and a second sending module; wherein the content of the first and second substances,
the second sending module is used for sending the first information to the calling UE; the first information carries an SDP offer;
the second receiving module is configured to receive second information carrying an SDP answer, which is sent by the calling UE when it is determined that the state of the calling communication resource is the first state, generate third information carrying the SDP answer according to the second information, and send the third information to the called UE; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation.
16. The apparatus of claim 15, wherein the second receiving module is further configured to receive fourth information sent by the called UE, and generate the first information according to the fourth information; and the fourth information carries the SDPoffer.
17. The apparatus of claim 15 or 16, wherein the SDP answer carries calling resource status parameters; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the SDP answer indicates the called UE to perform ringing directly by carrying the resource state parameter indicating that the calling communication resource state is the first state.
18. A communication resource confirmation apparatus, the apparatus being located at a called UE, the apparatus comprising: a third receiving module and a processing module; wherein the content of the first and second substances,
the third receiving module is used for receiving third information which is sent by a network side and carries an SDP answer; the third information is generated by the network side according to the second information which is sent by the calling UE when the calling communication resource state is determined to be the first state and carries the SDP answer; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation;
and the processing module is used for directly carrying out ringing operation according to the third information.
19. The apparatus of claim 18, wherein the SDP answer carries a calling resource status parameter; the calling resource state parameter is used for indicating the current state of the calling communication resource;
correspondingly, the processing module is specifically configured to perform the ringing operation directly according to the resource state parameter, which is carried in the SDP answer in the third information and indicates that the calling communication resource state is the first state.
20. The apparatus of claim 19, wherein the calling communication resource status is indicated as the first status by setting the status of the resource status parameter to sendrecv; the first state is used for representing that the calling communication resource is reserved successfully.
21. A communication resource confirmation system, the system comprising: calling UE, a network side and called UE; wherein the content of the first and second substances,
the network side is used for sending first information to the calling UE; the first information carries an SDP offer;
the calling UE is used for receiving the first information and sending second information carrying an SDP answer to a network side when the current calling communication resource state is determined to be the first state; the SDP answer carries sendrecv; the sendrecv is used for indicating that the calling communication resource is successfully reserved and the called UE does not need to wait for the calling UE to send an UPDATE message for resource confirmation and can directly perform ringing operation;
the network side is further configured to generate third information carrying an SDP answer according to the second information, and send the third information to the called UE;
and the called UE is used for directly ringing according to the SDP answer in the third information.
CN201510734020.6A 2015-11-03 2015-11-03 Communication resource confirmation method, device and system Active CN106658752B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510734020.6A CN106658752B (en) 2015-11-03 2015-11-03 Communication resource confirmation method, device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510734020.6A CN106658752B (en) 2015-11-03 2015-11-03 Communication resource confirmation method, device and system

Publications (2)

Publication Number Publication Date
CN106658752A CN106658752A (en) 2017-05-10
CN106658752B true CN106658752B (en) 2020-04-14

Family

ID=58810895

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510734020.6A Active CN106658752B (en) 2015-11-03 2015-11-03 Communication resource confirmation method, device and system

Country Status (1)

Country Link
CN (1) CN106658752B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113438698B (en) * 2021-06-28 2022-09-09 中国电信股份有限公司 Call routing method, device, medium and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459897A (en) * 2008-04-17 2009-06-17 中兴通讯股份有限公司 Media negotiation method in forwarding service
CN101754050A (en) * 2010-02-02 2010-06-23 中国电子科技集团公司第三十研究所 Integrating high- timeliness call connecting and controlling method
CN101998325A (en) * 2009-08-25 2011-03-30 中兴通讯股份有限公司 Calling method and device for indicating terminal media type

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7509425B1 (en) * 2002-01-15 2009-03-24 Dynamicsoft, Inc. Establishing and modifying network signaling protocols

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101459897A (en) * 2008-04-17 2009-06-17 中兴通讯股份有限公司 Media negotiation method in forwarding service
CN101998325A (en) * 2009-08-25 2011-03-30 中兴通讯股份有限公司 Calling method and device for indicating terminal media type
CN101754050A (en) * 2010-02-02 2010-06-23 中国电子科技集团公司第三十研究所 Integrating high- timeliness call connecting and controlling method

Also Published As

Publication number Publication date
CN106658752A (en) 2017-05-10

Similar Documents

Publication Publication Date Title
US9294618B2 (en) Call-back to a UE that has made an emergency call via a visited IMS network
US8848666B2 (en) Handover of emergency calls from a circuit switched to a packet switched access network
CN112087548B (en) Method for playing multimedia color vibration and color ring and application server
US10326605B2 (en) Policy control in session initiation protocol forking
RU2592857C2 (en) Applications server for controlling communication with group of user objects
US8335485B2 (en) Call routing
US8483182B1 (en) Single radio voice call continuity handover of calls with video media from a circuit switched access network
US20140370834A1 (en) Disable of supplementary service on emergency in ims network
CN114501683A (en) Call processing method, device and storage medium
US20120063366A1 (en) Method and apparatus for call control in a communications network
CN103155511A (en) Connection control with b2bua located behind nat gateway
CN111092842B (en) Information processing method, server, network element and storage medium
US20190141094A1 (en) Multi-subscription in internet protocol multimedia subsystems
CN106658752B (en) Communication resource confirmation method, device and system
EP2504972B1 (en) Method and node for routing a call which has services provided by a first and second networks
CN108540428B (en) Service processing method, device and system
US8908643B2 (en) Handover of priority calls from a circuit switched access network with single radio voice call continuity
US20220021765A1 (en) Method for playing multimedia customized ringing signal and customized alerting tone, and application server
KR20150038388A (en) System and method for supporting same number using srvcc
CN107371140B (en) Method and device for processing call forwarding
EP3086593A1 (en) Network entity and method for monitoring an ims-based service
CN109996169B (en) Method and device for acquiring position information of called user
KR20150095441A (en) System and methdo for voice communication service
CN111328062A (en) VoLTE emergency call connection method and device
WO2018202349A1 (en) Method for an improved handling of an internet protocol multimedia subsystem conversational service of a user equipment, system, public land mobile network, call state control function node, program and computer program product

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant