CN110324240A - Communication means and communication device - Google Patents

Abstract

This application provides a kind of communication means and communication devices, this method comprises: the first equipment sends the first instruction information, the first instruction information is used to indicate the routing iinformation towards the second equipment and is changed to secondary route information from the first routing iinformation, which includes Internet protocol IP address and/or port；First equipment was sent certainly in the first period after the first instruction information, according to first routing iinformation control for the data transmission of second equipment or data receiver；First equipment is after first period, according to secondary route information control for the data transmission of second equipment or data receiver, thus, it is possible in the case where the communication resource that terminal device uses changes, ensure the continuity communicated, and then improves the reliability of communication.

Description

Communication means and communication device

Technical field

This application involves the communications fields, also, more particularly, to communication means and communication device.

Background technique

With the development of communication technology and universal, ambulant requirement is also gradually increased in communication service, for example, the In five Generation Mobile Communication Systems (the Fifth-Generation mobile communications, 5G), low time delay and reality When property etc. requires the real-time communication service of high quality-of-service (Quality of Service, QoS) will be more and more, such as: it is empty Quasi- reality (Virtual Reality, VR) business or augmented reality (Augmented Reality, AR) business.

Also, in the moving process of terminal device (for example, the process for taking the transit equipments such as high-speed rail or automobile), in order to Ensure the low time delay requirement of above-mentioned business, it may be necessary to switch over to for the network side equipment of the terminal device service, that is, eventually The communication resource that end equipment uses (for example, the Internet protocol address (Internet Protocol, IP) that terminal device uses or Port, or IP address or the port of the network side equipment of the business service are provided for terminal device) may change.

In this case, the problem of how ensuring the continuity of communication, becoming industry urgent need to resolve.

Summary of the invention

The application provides a kind of communication means and communication device, the communication resource that can be used in terminal device change In the case where, it is ensured that the continuity of communication, and then improve the reliability of communication.

In a first aspect, providing a kind of communication means, comprising: the first equipment sends the first instruction information, first instruction Information is used to indicate the routing iinformation towards the second equipment and is changed to secondary route information from the first routing iinformation, the routing iinformation Including Internet protocol IP address and/or port；First equipment was sent certainly in the first period after the first instruction information, According to first routing iinformation control for the data transmission of second equipment or data receiver；First equipment this first when After section, according to secondary route information control for the data transmission of second equipment or data receiver.

According to communication means provided by the present application, by making the first equipment that the routing iinformation after change is sent to communication pair Hold (that is, second equipment), the second equipment can be made to know that the routing iinformation of the first equipment changes, thus, it is possible to avoid because Second equipment can not identify the routing iinformation after change and communication is caused mistake occur, also, by sending the first equipment Data still are transmitted using routing iinformation before changing in certain period after routing iinformation after the change, it can be ensured that the Two equipment can just receive the data packet for carrying the routing iinformation after having altered after receiving modification information, thus, it is possible to It further ensures that the continuity of communication, and then improves the reliability of communication.

Optionally, this method further include: first equipment since send this first instruction information after, confirm destination The data packet that location field carries secondary route information is effective.

Wherein, " data packet that confirmation destination address field (DAF) carries secondary route information is effective ", can refer to: first sets It is to need to be sent to the data packet of the first equipment that standby confirmation destination address field (DAF), which carries the data packet of secondary route information,.

Alternatively, " data packet that confirmation destination address field (DAF) carries secondary route information is effective ", can refer to: first is set The data packet that standby confirmation destination address field (DAF) carries secondary route information is the data packet of the corresponding business of the first routing iinformation.

Optionally, which is terminal device, which is in internet protocol multimedia subsystem IMS network Proxy Call Session Control Function P-CSCF equipment.

For example, in this case, first equipment was sent certainly in the first period after the first instruction information, according to this The control of first routing iinformation is sent for the data of second equipment or data receiver, comprising: first equipment should in transmission certainly In the first period after first instruction information, the source address field in the data packet for needing to be sent to gateway carries should First routing iinformation；Also, first equipment is after first period, according to secondary route information control for this second The data of equipment are sent or data receiver, comprising: first equipment is needing to be sent to gateway after first period Data packet in source address field carry the secondary route information, wherein the gateway is controlled by second equipment Gateway.

For another example in this case, first equipment sending certainly this first instruction information after the first period in, according to First routing iinformation control is sent for the data of second equipment or data receiver, comprising: first equipment is being sent certainly In the first period after the first instruction information, the data packet that confirmation carries first routing iinformation is effective.

That is, in the embodiment of the present application, terminal device was sent certainly in the first period after the first instruction information, recognize The data packet that first routing iinformation or secondary route information are carried for purpose address field is effective data packets.

Optionally, terminal device was sent certainly in the first period after the first instruction information, it is believed that destination address word It is to belong to the data packet of same business that section, which carries first routing iinformation or the data packet of secondary route information,.

Optionally, which is the call session control function in internet protocol multimedia subsystem IMS network CSCF equipment, second equipment are terminal device.

In this case, first equipment sending certainly this first instruction information after the first period in, according to this first Routing iinformation control for second equipment data send or data receiver, comprising: first equipment send certainly this first In the first period after instruction information, the first gateway of control and second equipment carry out data transmission or data receiver, First routing iinformation is the routing iinformation of first gateway；First equipment after first period, according to this The control of two routing iinformations is sent for the data of second equipment or data receiver, comprising: first equipment is in first period Later, the second gateway of control and second equipment carry out data transmission or data receiver, the secondary route information be this The routing iinformation of two gateways.

Wherein, which sent certainly in the first period after the first instruction information, and the first gateway of control is set It is standby that data transmission or data receiver are carried out with second equipment, comprising: first equipment send certainly the first instruction information it In the first period afterwards, the first gateway of control sends data packet to terminal device, also, is needing to be sent to terminal device Data packet in source address field carry first routing iinformation.

Also, first equipment, after first period, the second gateway of control and second equipment carry out data Transmission or data receiver: for first equipment after first period, the second gateway of control sends data to terminal device Packet, also, the source address field in the data packet for needing to be sent to terminal device carries the secondary route information.

For another example in this case, first equipment sending certainly this first instruction information after the first period in, according to First routing iinformation control is sent for the data of second equipment or data receiver, comprising: first equipment is to the first net It closes equipment to be controlled, so that the first gateway was sent certainly in the first period after the first instruction information, confirmation is taken Data packet with first routing iinformation is effective.

That is, in the embodiment of the present application, the first gateway that P-CSCF equipment is controlled is sent out from the P-CSCF equipment Give this first instruction information after the first period in, it is believed that destination address field (DAF) carries the first via by information packet and is Effective data packets.Also, the second gateway that the P-CSCF equipment is controlled is sending first finger from the P-CSCF equipment Show in the second period after information, it is believed that it is valid data that destination address field (DAF), which carries the secondary route information packet, Packet.

Optionally, this method further include: first equipment discharges first routing iinformation after first period.

Wherein, " first equipment discharges first routing iinformation after first period " can refer to: the first equipment If receiving the data packet that destination address carries the first routing iinformation after the first period, then it is assumed that the data packet is invalid.

Optionally, which sent certainly in the first period after the first instruction information, according to the first via By information control for the data transmission of second equipment or data receiver, comprising: first equipment is sending first instruction Start preset first timer after information, and before the first timer is then, is controlled according to first routing iinformation For the data transmission of second equipment or data receiver；And first equipment is after first period, according to this second Routing iinformation control is sent for the data of second equipment or data receiver, comprising: first equipment is in the first timer After then, according to secondary route information control for the data transmission of second equipment or data receiver；Wherein, this first The duration of timer is according to the propagation delay time determination between first equipment and second equipment and/or first timing The duration of device is determined at the time of discharging first routing iinformation according to first equipment.

Optionally, which is also used to indicate the duration of the first timer.

By determining for the first period based on preset timer, can be avoided because signaling is opened caused by negotiating for the first period Pin.

Optionally, this method further include: first equipment receives second indication information, which is used to indicate Second equipment receives the first instruction information；And first period is that the first instruction information is sent from first equipment The period between second indication information is received to first equipment.

Optionally, which is also used to indicate the duration of second timer, wherein the second timer is this Second equipment timer for starting from after receiving the first instruction information, also, first equipment with the first via by believing Mapping relations between breath will then be deleted in the second timer by second equipment later, this method further include: this first Equipment after undergoing the duration of the second timer since receive the second indication information, forbid according to the first via by Information sends data.

Optionally, which is also used to indicate the duration of second timer, wherein the second timer is this Second equipment timer for starting from after receiving the first instruction information, also, first equipment with the first via by believing Mapping relations between breath will then be deleted in the second timer by second equipment later, this method further include: this first Equipment after undergoing the duration of the second timer since receive the second indication information, delete first equipment with Mapping relations between first routing iinformation.

It determined for the first period by the information fed back based on the second equipment, the first equipment can be made to ensure that the second equipment obtains After knowing the routing iinformation change of first equipment, data just are sent using the routing iinformation after change, thus, it is possible to further mention The reliability of height communication.

Second aspect provides a kind of communication means, comprising: the second equipment receives the first instruction information, first instruction Information is used to indicate routing iinformation of first equipment towards second equipment and is changed to secondary route information from the first routing iinformation, The routing iinformation includes Internet protocol IP address and/or port；Second equipment after receiving the first instruction information certainly In first period, according to first routing iinformation control for the data transmission of first equipment or data receiver；This second sets For after first period, data transmission or the data receiver of first equipment are directed to according to secondary route information control.

According to communication means provided by the present application, by making the first equipment that the routing iinformation after change is sent to communication pair Hold (that is, second equipment), the second equipment can be made to know that the routing iinformation of the first equipment changes, thus, it is possible to avoid because Second equipment can not identify the routing iinformation after change and communication is caused mistake occur, also, by sending the first equipment Data still are transmitted using routing iinformation before changing in certain period after routing iinformation after the change, it can be ensured that the Two equipment can just receive the data packet for carrying the routing iinformation after having altered after receiving modification information, thus, it is possible to It further ensures that the continuity of communication, and then improves the reliability of communication.

Optionally, this method further include: second equipment since send this first instruction information after, needing to send To carrying secondary route information in the destination address field (DAF) carrying of the data packet of the first equipment.

Optionally, this method further include: second equipment since send this first instruction information after, determine source address The data packet that secondary route information is carried in field carrying is effective.

Wherein, " data packet that confirmation source address field carries secondary route information is effective ", can refer to: the second equipment It is the data packet from the first equipment that confirmation source address field, which carries the data packet of secondary route information,.

Optionally, which received certainly in the first period after the first instruction information, according to the first via By information control for the data transmission of first equipment or data receiver, comprising: second equipment is receiving first finger certainly Show in the first period after information, determine source address carry the first routing iinformation data packet it is effective.

Wherein, " data packet that confirmation source address field carries the first routing iinformation is effective ", can refer to: the second equipment It is the data packet from the first equipment that confirmation source address field, which carries the data packet of the first routing iinformation,.

Optionally, which received certainly in the first period after the first instruction information, according to the first via By information control for the data transmission of first equipment or data receiver, comprising: second equipment is receiving first finger Show that information starts preset first timer later, and before the first timer is then, according to the first routing iinformation control System is sent for the data of first equipment or data receiver；And second equipment is after first period, according to this The control of two routing iinformations is sent for the data of first equipment or data receiver, comprising: second equipment is in first timing Device then after, according to the secondary route information control for first equipment data send or data receiver；Wherein, this The duration of one timer be determined according to the propagation delay time between first equipment and second equipment and/or this is first fixed When device duration be to be determined at the time of discharging first routing iinformation according to first equipment.

Optionally, which is also used to indicate the duration of the first timer.

By determining for the first period based on preset timer, can be avoided because signaling is opened caused by negotiating for the first period Pin.

Optionally, this method further include: second equipment sends second indication information to first equipment, second instruction Information is used to indicate second equipment and receives the first instruction information.

In this case, second equipment receiving certainly this first instruction information after the first period in, according to this first Routing iinformation control is sent for the data of first equipment or data receiver, comprising: second equipment is sending second finger Show that information starts preset second timer later, and before the second timer is then, according to the first routing iinformation control System is sent for the data of first equipment or data receiver；And second equipment is after first period, according to this The control of two routing iinformations is sent for the data of first equipment or data receiver, comprising: second equipment is in second timing Device then after, according to the secondary route information control for first equipment data send or data receiver；Wherein, this The duration of two timers is determined according to the propagation delay time between first equipment and second equipment.

It determined for the first period by the information fed back based on the second equipment, the first equipment can be made to ensure that the second equipment obtains After knowing the routing iinformation change of first equipment, data just are sent using the routing iinformation after change, thus, it is possible to further mention The reliability of height communication.

Optionally, this method further include: second equipment the second timer then after, delete first equipment with should Mapping relations between first routing iinformation exist.

Optionally, which is terminal device, which is in internet protocol multimedia subsystem IMS network Proxy Call Session Control Function P-CSCF equipment.

In this case, second equipment receiving certainly this first instruction information after the first period in, according to this first Routing iinformation control for first equipment data send or data receiver, comprising: second equipment receive certainly this first In the first period after instruction information, the first gateway of control is counted according to first routing iinformation and first equipment According to sending or receiving.

Specifically, second equipment was received certainly in the first period after the first instruction information, the first net is notified Close equipment: the data packet that source address field carries the first routing iinformation is effective.

Alternatively, second equipment was received certainly in the first period after the first instruction information, the first gateway is notified to set The standby destination address field (DAF) in the data packet for being sent to terminal device carries the first routing iinformation.

Optionally, second equipment is after first period, first is set according to secondary route information control for this Standby data are sent or data receiver, comprising: second equipment after first period, the second gateway of control and this One equipment carries out data transmission or data receiver.

Specifically, second equipment notifies the second gateway: source address word after receiving the first instruction information The data packet that section carries secondary route information is effective.

Alternatively, second equipment notifies the second gateway being sent to terminal after receiving the first instruction information The destination address field (DAF) of the data packet of equipment carries secondary route information.

Optionally, which is the agent call session control function in internet protocol multimedia subsystem IMS network Energy P-CSCF equipment, second equipment are terminal device.

The third aspect, provides a kind of communication device, including for executing above-mentioned first aspect or second aspect and its each The unit of each step of communication means in implementation.

In a kind of design, which is communication chip, and communication chip may include for sending information or data Input circuit perhaps interface and output circuit or interface for receiving information or data.

In another kind design, the communication device is communication equipment (for example, terminal device, P-CSCF equipment or gateway Equipment etc.), communication chip may include the transmitter for sending information or data, and for receiving connecing for information or data Receipts machine.

Fourth aspect provides a kind of communication equipment, including, processor, memory, the memory is for storing computer Program, the processor from memory for calling and run the computer program, so that the communication equipment executes first or the Communication means in two aspects and its various possible implementations.

Optionally, the processor is one or more, and the memory is one or more.

Optionally, the memory can be integrated with the processor or the memory divides with processor From setting.

Optionally, which further includes transmitter (transmitter) and receiver (receiver).

5th aspect, provides a kind of communication system, above-mentioned first equipment and the second equipment.

6th aspect, provides a kind of computer program product, the computer program product includes: computer program (be referred to as code, or instruction), when the computer program is run so that computer execute above-mentioned first aspect or Method in second aspect in any possibility implementation.

7th aspect, provides a kind of computer-readable medium, the computer-readable medium storage has computer program (be referred to as code, or instruction) when run on a computer so that computer executes above-mentioned first aspect or second Method in aspect in any possibility implementation.

Eighth aspect provides a kind of chip system, including memory and processor, and the memory is for storing computer Program, the processor from memory for calling and running the computer program, so that being equipped with the communication of the chip system Equipment executes the method in above-mentioned first aspect or second aspect in any possibility implementation.

Wherein, which may include the input circuit or interface for sending information or data, and be used for Receive the output circuit or interface of information or data.

According to the scheme of the embodiment of the present application, by making the first equipment that the routing iinformation after change is sent to Correspondent Node (that is, second equipment) can make the second equipment know that the routing iinformation of the first equipment changes, thus, it is possible to avoid because of Two equipment can not identify the routing iinformation after change and communication is caused mistake occur, also, by making the first equipment send should Data still are transmitted using routing iinformation before changing in certain period after routing iinformation after change, it can be ensured that second Equipment can just receive the data packet for carrying the routing iinformation after having altered after receiving modification information, thus, it is possible into One step ensures the continuity communicated, and then improves the reliability of communication.

Detailed description of the invention

Fig. 1 is the schematic diagram of an example of the communication system of the application.

Fig. 2 shows the schematic diagrams of an example of access network.

Fig. 3 shows the schematic diagram of an example of core network.

Fig. 4 is the schematic interaction figure of an example of the communication means of the application.

Fig. 5 is the structure chart of an example of the change instruction information of the application.

Fig. 6 is another structure chart of the change instruction information of the application.

Fig. 7 is another schematic interaction figure of the communication means of the application.

Fig. 8 is the structure chart of an example again of the change instruction information of the application.

Fig. 9 is another schematic interaction figure of the communication means of the application.

Figure 10 is the schematic block diagram of an example of the communication device of the application.

Figure 11 is the schematic block diagram of an example again of the communication device of the application.

Figure 12 is the schematic diagram of an example of the terminal device of the application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

The technical solution of the application can be applied to that the various logical of communication can be completed by access network and core network Letter system, such as: IP multimedia subsystem (IMS, Internet Protocol Multimedia Subsystem), Fig. 1 shows The schematic diagram of the communication system of the method for the troubleshooting of the application is gone out to be applicable in, as shown in Figure 1, the communication system can To include access net, IP multimedia subsystem (IMS, IP Multimedia subsystem) and external network three parts.

In the following, three parts of the communication system are described in detail respectively.

1. external network

External network can provide business service for user, for example, the external network can be internet (Internet), Public Switched Telephone Network (PSTN, Public Switched Telephone Network) etc..

2. accessing network

Access network can provide service for cell, and the transfer resource that terminal device is used by the cell is (for example, frequency domain Resource, in other words, frequency spectrum resource) it is communicated with access net network.Non-limiting as example, access network can be example Such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, WiMAX) communication system, the 5th following generation (5th Generation, 5G) system or new wireless (New Radio, NR), Wireless LAN (WLAN, Wireless Local Area Networks) etc..

The equipment that above-mentioned cell is provided in access net is properly termed as access network equipment, and access network equipment can be in WLAN Base station (Base Transceiver Station, BTS) in access point (Access Point, AP), GSM or CDMA, can also To be the base station (NodeB, NB) in WCDMA or the gNB in new wireless systems (New Radio, NR) system, may be used also Be evolved base station (Evolutional Node B, eNB or eNodeB) in LTE perhaps relay station or access point or Access in the PLMN network of mobile unit, wearable device and access network equipment or the following evolution in future 5G network Net equipment etc..

In addition, the cell that access network provides can be and refer to the accession to the corresponding cell of net equipment (such as base station), cell can To belong to macro base station, the corresponding base station of cell (Small cell) also may belong to, cell here may include: city Cell (Metro cell), Microcell (Micro cell), picocell (Pico cell), Femto cell (Femto Cell) etc., these cells have the characteristics that coverage area is small, transmission power is low, and the data suitable for providing high-speed are transmitted Service.

In addition, can there are multiple cells to work on carrier wave in LTE system or 5G system with frequency simultaneously, in certain particular fields Under scape, it is also assumed that above-mentioned carrier wave is equal with the concept of cell.Such as carrier wave polymerization (Carrier Aggregation, CA the carrier index that secondary carrier can be carried simultaneously when configuring secondary carrier for UE) under scene and work are in the auxiliary small of the secondary carrier The cell ID (Cell Indentify, Cell ID) in area, in such a case, it is possible to think the concept etc. of carrier wave and cell Together, for example one cell of one carrier wave of UE access and access is equivalent.

In addition, can there are multiple cells to work on carrier wave in LTE system or 5G system with frequency simultaneously, in certain particular fields Under scape, it is also assumed that above-mentioned carrier wave is equal with the concept of cell.Such as carrier wave polymerization (Carrier Aggregation, CA the carrier index that secondary carrier can be carried simultaneously when configuring secondary carrier for UE) under scene and work are in the auxiliary small of the secondary carrier The cell ID (Cell Indentification, Cell ID) in area, in such a case, it is possible to think carrier wave and cell Concept is equivalent, for example one cell of one carrier wave of UE access and access is equivalent.

Fig. 2 shows the schematic architectural diagrams of an example of access network.As shown in Fig. 2, the access network 100 includes access Net equipment 102, access network equipment 102 may include 1 antenna or mutiple antennas for example, 104,106,108,110,112 and of antenna 114.In addition, access network equipment 102 can additionally include transmitter chain and receiver chain, those of ordinary skill in the art can be managed Solution, they, which may each comprise, sends and receives relevant multiple components (such as processor, modulator, multiplexer, demodulation to signal Device, demultiplexer or antenna etc.).

Access network equipment 102 can be communicated with multiple terminal devices (such as terminal device 116 and terminal device 122).So And, it will be understood that access network equipment 102 can be with any number of terminal similar to terminal device 116 or terminal device 122 Equipment communication.Terminal device 116 and 122 can be for example cellular phone, smart phone, portable computer, handheld communication devices, Handheld computing device, satellite radio, global positioning system, PDA and/or for being communicated on wireless communication system 100 Any other suitable equipment.

As shown in Fig. 2, terminal device 116 is communicated with antenna 112 and 114, wherein antenna 112 and 114 passes through forward link (also referred to as downlink) 118 to terminal device 116 send information, and by reverse link (also referred to as uplink) 120 from Terminal device 116 receives information.In addition, terminal device 122 is communicated with antenna 104 and 106, before wherein antenna 104 and 106 passes through Information is sent to link 124 to terminal device 122, and information is received from terminal device 122 by reverse link 126.

For example, in frequency division duplex (Frequency Division Duplex, FDD) system, for example, forward link 118 Different frequency bands can be used from reverse link 120, forward link 124 can use different frequency bands from reverse link 126.

For another example in time division duplex (Time Division Duplex, TDD) system and full duplex (Full Duplex) In system, common frequency band is can be used in forward link 118 and reverse link 120, and forward link 124 and reverse link 126 can be used Common frequency band.

The each antenna (or the antenna sets being made of mutiple antennas) and/or region for being designed to communication are known as accessing The sector of net equipment 102.For example, antenna sets can be designed as to set with the terminal in the sector of 102 overlay area of access network equipment Standby communication.Access network equipment can be set by individual antenna or the multi-antenna emission diversity terminal all into its corresponding sector The preparation number of delivering letters.It is communicated respectively with terminal device 116 and 122 in access network equipment 102 by forward link 118 and 124 During, beam forming can also be used to improve the noise of forward link 118 and 124 in the transmitting antenna of access network equipment 102 Than.In addition, sending signal to its all terminal device by individual antenna or multi-antenna emission diversity with access network equipment Mode is compared, and utilizes 116 He of terminal device of beam forming random dispersion into associated coverage in access network equipment 102 When 122 transmission signal, the mobile device in neighboring community will receive less interference.

In given time, access network equipment 102, terminal device 116 or terminal device 122 can be wireless communication and send dress It sets and/or radio communication receiver.When sending out data, radio communication transmitter can encode data for passing It is defeated.Specifically, radio communication transmitter, which can obtain, (such as generates, receives from other communication devices or in memory save Deng) to be sent to by channel radio communication receiver certain amount data bit.This data bit may include In the transmission block (or multiple transmission blocks) of data, transmission block be can be segmented to generate multiple code blocks.

In addition, the communication system 100 can be PLMN network, D2D network, M2M network, IoT network or other networks, Fig. 2 is the rough schematic view illustrated, and can also include other access network equipments in network, not drawn in Fig. 2.

In addition, the network equipment in access network or network equipment in the PLMN network of the following evolution etc., the application Embodiment does not limit.

3.IMS

IMS is referred to as core network, for the data from access network to be transmitted to external network, alternatively, will The data of external network are transmitted to access network, more specifically, IMS is to provide leading to for multimedia service on IP-based network Use the network architecture.

It is non-limiting as example, as shown in figure 3, in this application, IMS can include but is not limited to following network element.

A. gateway (Gateway, GW) equipment

Gateway is the relay device of the data exchange accessed between terminal device and external network in network.

It is non-limiting as example, in this application, between terminal device and gateway can based on routing iinformation into Row communication.

Non-limiting as example, which may include IP address or port.

Specifically, for example, terminal device #1 can be with when terminal device #1 needs external network to send data packet #1 Routing iinformation #1 is carried in the destination address field (DAF) of data packet #1, wherein routing iinformation #1 is for terminal device #1 service Routing iinformation (for example, IP address or port) of the gateway (being denoted as gateway #1) towards terminal device #1.

Wherein, " routing iinformation of the gateway #1 towards terminal device #1 " can refer to: can indicate that the gateway is set The routing iinformation of standby #1.

Optionally, being somebody's turn to do " routing iinformation of the gateway #1 towards terminal device #1 " can specifically refer to: can make end End equipment #1 identifies the routing iinformation of gateway #1.Specifically, gateway #1 can have multiple routing iinformations, Also, each routing iinformation can indicate gateway #1.In this application, multiple routing iinformation can be by face respectively To different terminal devices, that is, the different terminal devices routing iinformation obtained for being used to indicate network equipment #1 can be with It is different.

Also, terminal device #1 can carry routing iinformation #2 in the source address field of data packet #1, wherein routing letter Ceasing #2 is routing iinformation (for example, IP address or port) of the terminal device #1 towards gateway #1.

Wherein, " routing iinformation of the terminal device #1 towards gateway #1 " can refer to: can indicate that the terminal is set The routing iinformation of standby #1.

Optionally, being somebody's turn to do " routing iinformation of the terminal device #1 towards gateway #1 " can specifically refer to: can make net Close the routing iinformation that equipment #1 identifies terminal device #1.Specifically, terminal device #1 can have multiple routing iinformations, Also, each routing iinformation can indicate terminal device #1.In this application, multiple routing iinformation can be respectively for Different gateway, that is, the different gateways routing iinformation obtained for being used to indicate terminal device #1 can not Together.

Alternatively, terminal device #1 can have multiple routing iinformations, for example, the different business of terminal device #1 is (in other words, Session) different routing iinformations is used, also, each routing iinformation can indicate terminal device #1.

The equipment in communication system can be believed based on routing entrained by the destination address field (DAF) in data packet #1 as a result, It ceases (that is, routing iinformation #1) and data packet #1 is routed into gateway #1.

Also, gateway #1 can be based on routing iinformation entrained by the source address field in data packet #1 (that is, road Identify data packet #1 from terminal device #1 by information #2).Optionally, gateway #1 is also based on routing letter Breath #2 identifies business (in other words, session) corresponding to data packet #1.

To which gateway can the relevant information (for example, information of the business accessed) based on terminal device #1 Data packet #1 is sent to external equipment.

For another example when gateway #1 receives the data packet #2 from external equipment, for example, the data can be based on The information such as carrying corresponding to #2 are wrapped, determine that data packet #2 needs to be sent to terminal device #1, thus, gateway #1 can be with Routing iinformation #2 is carried in the destination address field (DAF) of data packet #2.

Also, gateway #1 can carry routing iinformation #1 in the source address field of data packet #2.

The equipment in communication system can be believed based on routing entrained by the destination address field (DAF) in data packet #2 as a result, It ceases (that is, routing iinformation #2) and data packet #2 is routed into terminal device #1.

Also, terminal device #1 can be based on routing iinformation entrained by the source address field in data packet #2 (that is, road Identify data packet #2 from gateway #1 by information #1).Optionally, terminal device #1 is also based on routing letter Breath #2 identifies business (in other words, session) corresponding to data packet #2.

It in the embodiment of the present application, may include multiple gateways in IMS system, also, different gateways Coverage area can be different.

It is non-limiting as example, the network equipment can be transfer gateway (Translation Gateway, TrGW) or The various gateways such as IMS access gateway (Access Gateway, AGW).

B. call session control function (CSCF, Call Session Control Function) equipment

CSCF equipment is the functional entity inside IMS, is the core of entire IMS.It is mainly responsible for processing multimedia call meeting Signaling control during words.Subscription authentication, IMS loading end QoS and the cooperation of other network elements that it manages IMS conversate just The control of beginning agreement (Session Initiation Protoco, SIP) session and service negotiation and resource allocation etc..

Wherein, CSCF equipment can be with terminal equipment in communication, also, CSCF equipment can be communicated with gateway.

For example, the CSCF equipment can choose the gateway with terminal equipment in communication, also, the CSCF equipment can be Terminal device and gateway distribute routing iinformation, for example, IP address or port.

Non-limiting as example, CSCF is divided into proxy CSCF (Proxy CSCF, P-CSCF) according to function, inquires CSCF (Interrogating CSCF, I-CSCF), serving CSCF (Serving CSCF, S-CSCF) etc..

Wherein, P-CSCF is the unified entrance of IMS visited network (an example of access network).It is all to originate from user and set Conversation message that is standby and terminating at user equipment will pass through P-CSCF.P-CSCF is responsible for and accesses as a SIP Proxy The relevant subscription authentication of network and internet security agreement (Internet Protocol Security, IPSec) management, network Attack protection and safeguard protection carry out SIP signalling compression and decompression to save wireless network resource, and the Roaming control of user passes through Network address translation (the Network of strategy decisive function (Policy Decision Function, PDF) progress loading end Address Translation, NAT) with the functions such as QoS etc..For example, P-CSCF can determine according to the domain name that user equipment provides Determine I-CSCF, and forwards the SIP registration request from user equipment to the I-CSCF.For another example P-CSCF can be in user Equipment is initiated to determine that S-CSCF forwards the sip message from the user equipment when register flow path.

I-CSCF is the entrance of IMS home network (another example of access network).In registration process, I-CSCF passes through HSS is inquired, selects a S-CSCF for user.In calling procedure, the calling for going to IMS network is first routed to I-CSCF, The address S-CSCF that user is registered is obtained from HSS by I-CSCF, routes messages to S-CSCF.For example, I-CSCF can be User equipment specifies some S-CSCF to execute SIP registration.For another example I-CSCF can obtain the address of S-CSCF from HSS, SIP request is forwarded, or the SIP request that other networks transmit is routed to S-CSCF.

S-CSCF is in core status in IMS network session control, it receives to turn from visited network by P-CSCF The registration request sent cooperates with HSS and carries out subscription authentication.And the business datum of user's signing is downloaded from HSS.S-CSCF pairs Routing management is carried out in user's caller and callee side, initial filter criteria (the Initial Filter to contract according to user Criteria, IFC), sip application server (Application Server, AS) triggering is carried out, realizes IMS business abundant Function.For example, S-CSCF can make registration request come into force after receiving registration request by HSS.For another example S-CSCF can be with Registered conversational terminal is controlled, can be used as proxy server (Proxy-Server).For another example S-CSCF can be asked in reception After asking, inter-process or forwarding are carried out, also can be used as user agent (UA, User Agent), interrupts or initiate SIP affairs.Again For example, S-CSCF can also be interacted with business platform, multimedia service is provided.

It should be noted that above-mentioned P-CSCF, S-CSCF, I-CSCF can also collect with separate configurations in different entities At in same entity, hereinafter, in order to facilitate understanding and explanation, being referred to as CSCF equipment.

It should be understood that the network element in IMS network listed above is merely illustrative, the application is not limited to this, example Such as, can also include but is not limited to following network element in IMS:

Home subscriber server (HSS, Home Subscriber Server), service centralization and continuity application service Device (SCC AS, Service Centralization and Continuity Application Server), access switching Control function (ATCF, Access Transfer Control Function) equipment, strategy decisive function (Policy Decision Function, PDF) etc. equipment.

In the embodiment of the present application, terminal device is referred to as user equipment (User Equipment, UE), access eventually It is end, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication equipment, user agent or user apparatus.Terminal device can be the website (STAION, ST) in WLAN, can be honeycomb Phone, wireless phone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) stand, personal digital assistant (Personal Digital Assistant, PDA) equipment, It is handheld device with wireless communication function, the other processing equipments for calculating equipment or being connected to radio modem, vehicle-mounted Equipment, wearable device and next generation communication system, for example, the public land of terminal device or the following evolution in 5G network Terminal device etc. in ground mobile network (Public Land Mobile Network, PLMN) network.

Non-limiting as example, in the embodiment of the present application, which can also be wearable device.It is wearable Equipment is referred to as wearable intelligent equipment, is to carry out intelligentized design to daily wearing using wearable technology, develop The general name for the equipment that can be dressed, such as glasses, gloves, wrist-watch, dress ornament and shoes.Wearable device is directly worn, or It is a kind of portable device for being integrated into the clothes or accessory of user.Wearable device is not only a kind of hardware device, even more It is interacted by software support and data interaction, cloud to realize powerful function.Broad sense wearable intelligent equipment includes function Entirely, size is big, can not depend on smart phone realizes complete or partial function, such as: smartwatch or intelligent glasses etc., with And only it is absorbed in certain a kind of application function, it needs to be used cooperatively with other equipment such as smart phone, such as all kinds of carry out sign monitorings Intelligent bracelet, intelligent jewellery etc..

In addition, in the embodiment of the present application, terminal device can also be Internet of Things (Internet of Things, IoT) Terminal device in system, IoT are the important components of future information technology development, and technical characteristics are to lead to article The communication technology and network connection are crossed, thus realize man-machine interconnection, the intelligent network of object object interconnection.

In the embodiment of the present application, IOT technology can accomplish magnanimity for example, by narrowband (Narrow Band) NB technology Connection, depth covering, saving power for terminal.For example, NB only includes a resource block (Resource Bloc, RB), that is, the bandwidth of NB Only 180KB.Accomplish magnanimity access, must be requested that terminal be in access it is discrete, according to the communication of the embodiment of the present application Method can effectively solve the problem that congestion problems of the IOT technology magnanimity terminal when accessing network by NB.

In the embodiment of the present application, communication equipment (for example, above-mentioned terminal device, CSCF equipment or gateway etc.) includes Hardware layer operates in operating system layer on hardware layer, and operates in the application layer on operating system layer.The hardware layer packet Include central processing unit (Central Processing Unit, CPU), memory management unit (Memory Management Unit, MMU) and the hardware such as memory (also referred to as main memory).The operating system can be any one or more and pass through process (Process) computer operating system for realizing business processing, for example, (SuSE) Linux OS, Unix operating system, Android Operating system, iOS operating system or windows operating system etc..The application layer is soft comprising browser, address list, word processing The application such as part, instant communication software.Also, the embodiment of the present application is not to the executing subject of method provided by the embodiments of the present application Specific structure be particularly limited to, as long as can have the journey of the code of the method for the offer of the embodiment of the present application by log Sequence, to be communicated according to method provided by the embodiments of the present application, for example, the execution of method provided by the embodiments of the present application Main body can be terminal device or the network equipment, alternatively, being that caller and can execute journey in terminal device or the network equipment The functional module of sequence.

In addition, the various aspects or feature of the embodiment of the present application may be implemented into method, apparatus or using standard program and/ Or the product of engineering technology.Term " product " used herein is covered can be from any computer-readable device, carrier or Jie The computer program of matter access.For example, computer-readable medium may include, but it is not limited to: magnetic memory device (for example, hard disk, Floppy disk or tape etc.), CD is (for example, compact disk (Compact Disc, CD), digital versatile disc (Digital Versatile Disc, DVD) etc.), smart card and flush memory device are (for example, Erarable Programmable Read only Memory (Erasable Programmable Read-Only Memory, EPROM), card, stick or Keyed actuator etc.).In addition, described herein various Storage medium can represent one or more equipment and/or other machine readable medias for storing information.Term is " machine readable Medium " may include but be not limited to, wireless channel and various other Jie that can be stored, include and/or carry instruction and/or data Matter.

It should be noted that in the embodiment of the present application, multiple application programs can be run in application layer, in this case, The application program for executing the communication means of the embodiment of the present application completes received data institute with for controlling and receiving end equipment The application program of corresponding movement can be different application program.

In the following, being described in detail in conjunction with communication means of the Fig. 4 to Fig. 9 to the application.Hereinafter, in order to facilitate understanding and area Point, using IP address as routing iinformation, the detailed process of the communication means is described in detail.

The schematic stream of the communication means 400 of the application in the case that the IP address that Fig. 4 shows terminal device #A changes Journey.

As shown in figure 4, in period #A, terminal device #A (that is, an example of the first equipment) can based on IP in S410 Location #A is communicated with gateway.

Non-limiting as example, IP address #A can be 5G core (5G Core, 5GC) and distribute to terminal device #A IP address.

Optionally, IP address #A can be corresponding with business (for example, session) #A, that is, IP address #A can be gateway The IP address used when the data of transmission services #A between equipment and terminal device #A

Also, before period #A, gateway can know that IP address #A is the IP address of terminal device #A.

Specifically, IP address #A can be IP address of the terminal device #A towards gateway, that is, gateway can It is determined as the data packet from terminal device #A as the data packet of IP address #A using the IP address for carrying source address field.And And gateway can carry IP address # in the purpose IP address field for needing to be sent to the data packet of terminal device #A A。

It should be noted that the process of above-mentioned S410 can be similar to the prior art, here, in order to avoid repeating, save Slightly its detailed description.

IP address that terminal device #A is used can be determined by IP address #A with changing to IP in S420, terminal device #A Location #B.

Optionally, " IP address that terminal device #A is used changes to IP address #B by IP address #A " specifically can be Refer to: the corresponding IP address of business #A changes to IP address #B by IP address #A.

For example, when terminal device #A occur it is mobile and cause terminal device #A far from accessed access network equipment (for example, Base station) when, the communication delay of terminal device #A may be led to because terminal device #A increases at a distance from the access network equipment Increase, the reliability and accuracy of transmission reduce.Especially in the case where business #A requires low time delay, terminal device #A can be with Access is apart from the closer access network equipment of terminal device #A, also, 5GC can redistribute IP address for terminal device #A (hereinafter, in order to facilitate understanding and distinguish, be denoted as IP address #B).

That is, in this application, in the transmission process of business #A, the IP address of terminal device #A is (for example, terminal device #A The IP address used when transmission services #A) IP address #B is changed to by IP address #A.

It should be understood that listed above can result in IP address that terminal device #A is used by IP address #A with being changed to IP The reason of location #B, is merely illustrative, and the application is not limited to this, and the application can result in terminal device suitable for any The changed scene of the IP address used.

Optionally, after determining that IP address #A is changed to IP address #B, terminal device #A can be determined: if received To the destination address of data packet carry IP address #B, then the data packet is to need to be sent to the data of terminal device #A Packet.Optionally, terminal device #A can also determine that the data packet is the data packet of business #A.

That is, terminal device #A can be carried out based on IP address #B after determining that IP address #A is changed to IP address #B The preparation of received data packet.

In other words, (for example, terminal device #A within the defined period after determining that IP address #A is changed to IP address #B Before release IP address #A), terminal device #A can determine that carrying the data packet of IP address #A or IP address #B is this Terminal device #A needs received data packet, and optionally, terminal device #A, which can be determined, carries IP address #A or IP address # The data packet of B is the data packet of business #A.

It can send and become to the CSCF equipment (that is, an example of the second equipment) in communication system in S430, terminal device #A More indicate information (that is, first instruction information an example, hereinafter, in order to facilitate understanding and explanation, be denoted as change instruction information #A), Wherein, change instruction information #A can serve to indicate that the IP address that terminal device #A is used is changed to IP address #B.

Non-limiting as example, which can be application layer signaling.

For example, Fig. 5 shows an example of change instruction information #A, as shown in figure 5, change instruction information #A can wrap Include original ip address field and change IP address field.Wherein, the IP address of original ip address field carrying is IP before changing Address (that is, IP address #A), the IP address of change IP address field carrying are the IP address (that is, IP address #B) after change.

It should be noted that the position of the original ip address field and change IP address field in change instruction information can To be as defined in communication protocol, alternatively, the position of the original ip address field and change IP address field in change instruction information Set can be terminal device #A and CSCF equipment negotiation, the application is simultaneously not particularly limited, as long as can make terminal device #A and CSCF equipment is consistent for the understanding of each field in change instruction information.

To which CSCF equipment can determine that IP address #A is changed to IP address #B according to change instruction information #A.

For another example Fig. 6 shows another example of change instruction information #A, as shown in fig. 6, change instruction information #A can To include device identification field and change IP address field.Wherein, the mark of device identification field carrying can be used in identification eventually End equipment #A, the IP address of change IP address field carrying are the IP address (that is, IP address #B) after change.

For example, the corresponding relationship for the IP address that terminal device #A is used with it can be saved in CSCF equipment, that is, when Section #A, which can be corresponding with IP address #A with the mark of instruction terminal equipment #A.

It should be noted that position in change instruction information of the device identification field and change IP address field can be with It is as defined in communication protocol, alternatively, the position of the device identification field and change IP address field in change instruction information can To be that terminal device #A and CSCF equipment is negotiated, the application is simultaneously not particularly limited, as long as can make terminal device #A and CSCF Equipment is consistent for the understanding of each field in change instruction information.

CSCF equipment can be based on the corresponding relationship after receiving change instruction information #A, determine that change instruction is believed The mark for ceasing the device identification field carrying of #A corresponds to IP address #A, and then determines IP address #A with needing to be changed to IP Location #B.

Thereafter, the gateway that CSCF equipment can notify as terminal device #A service: the IP of terminal device #A Location #A is changed to IP address #B.

After determining that IP address #A is changed to IP address #B, CSCF equipment and gateway can be determined: if connect The source address of the data packet received carries IP address #B, then the data packet can be determined from terminal device #A.Optionally, CSCF equipment and gateway can also determine that the data packet is the data packet of business #A.

That is, gateway can be carried out to be connect based on IP address #B after determining that IP address #A is changed to IP address #B Receive the preparation of data packet.

Also, after determining that IP address #A is changed to IP address #B, CSCF equipment and gateway are with can be used IP Location #B sends data (for example, data of business #A) to terminal device #A.

Optionally, in S440, CSCF equipment can send response message #A (that is, second indication information to terminal device #A An example), response message #A can serve to indicate that CSCF equipment and gateway confirmation IP address #A be changed to IP address #B.

According to the communication means of the application, terminal device notifies CSCF after IP address changes, by the alteration Equipment can be avoided because CSCF can not know the gateway that the IP address generation change due to of terminal device causes CSCF to be controlled It can not identify the data packet of the IP address after carrying has altered.

In addition, after terminal device #A sends change instruction information #A, due to terminal device #A and CSCF equipment it Between there are data transmission delays, therefore, CSCF equipment determines that lagging behind terminal at the time of IP address #A is changed to IP address #B sets At the time of standby #A determines that IP address #A is changed to IP address #B, therefore, if terminal device #A is sending change instruction information # Send data using IP address #B immediately after A, then it may be due to the determining IP address #A of CSCF equipment is changed to IP address #B The gateway for causing the CSCF equipment to control can not identify the data packet for carrying IP address #B, to influence the continuous of communication Property and reliability.

In view of the above problems, in this application, it after terminal device #A sends change instruction information #A, can use Following at least one mode sends data.

Mode 1

Terminal device #A can star timer #A (that is, the one of first timer after sending change instruction information #A Example).

Also, before timer #A is then, terminal device #A sends data (for example, business #A using IP address #A Data).Timer #A then after, terminal device #A using IP address #B send data (for example, the number of business #A According to).

Wherein, the duration of timer #A can be according to the propagation delay time (note between terminal device #A and CSCF equipment Make, time delay #A) determine.For example, the duration of timer #A can be greater than or equal to the duration of time delay #A.

Optionally, when the duration of timer #A can also be according to transmission between CSCF equipment and gateway Prolong and (be denoted as, time delay #B) determination.For example, the duration of timer #A can be greater than or equal to the duration of time delay #A and time delay #B The sum of.

Thus, it is possible to ensure before gateway determines that IP address #A is changed to IP address #B, still using the IP Location #A carries out data transmission, and can be avoided gateway can not identify error of transmission caused by IP address #B.

Optionally, at the time of the duration of timer #A can also be according to the transport layer of terminal device release IP address #A Determining, for example, the duration of timer #A meets the following conditions: after transport layer discharges IP address #A, terminal device is prohibited Only data are sent using IP address #A in application layer.In other words, if self terminal equipment #A determines IP address #A with being changed to IP Location #B starts to the period between transport layer release IP address #A to be duration # α, if self terminal equipment #A determines that IP address #A becomes More IP address #B starts the when a length of duration # β to timer #A then, then the duration of timer #A meets: duration # β is small In or equal to duration # α.

Thus, it is possible to avoid causing double hairs that can not identify because application layer is different with the period of transport layer release IP address #A The data sent each other.

Non-limiting as example, the duration of timer #A can be terminal device #A and CSCF equipment according to formerly logical The latency measurement of letter and obtain, alternatively, the duration of timer #A can be administrator or terminal device # is handed down in operator A's, the application is simultaneously not particularly limited.

Optionally, terminal device #A can also send the information of the duration of timer #A to CSCF equipment, for example, this is fixed When device #A the information of duration can be carried in above-mentioned change instruction information #A.

To which CSCF equipment can determine that terminal device #A stops using IP address #A based on the duration of timer #A It (is denoted as, moment # α) at the time of sending data, in turn, CSCF equipment can discharge IP address #A in IMS after moment # α With the mapping relations of terminal device #A.

Mode 2

As described above, CSCF equipment can send response message # to terminal device #A in a kind of possible embodiment A。

In this case, also, before receiving response message #A, terminal device #A sends data using IP address #A (for example, data of business #A).After receiving response message #A, terminal device #A sends data using IP address #B (for example, data of business #A).

Thus, it is possible to ensure before gateway determines that IP address #A is changed to IP address #B, still using the IP Location #A carries out data transmission, and can be avoided gateway can not identify error of transmission caused by IP address #B.

It should be understood that aforesaid way 1 and mode 2 can be used alone and can also be used in combination, the application is simultaneously not particularly limited.

In addition, after CSCF equipment sends response message #A, due to existing between terminal device #A and CSCF equipment Data transmission delay, therefore, at the time of terminal device #A determines that CSCF equipment and gateway receive change instruction information #A (at the time of in other words, terminal device #A stops using IP address #A to send data) lags behind CSCF equipment and gateway determines At the time of IP address #A is changed to IP address #B, therefore, if CSCF equipment and gateway are receiving change instruction information # Forbid receiving data based on IP address #A immediately after A, then IP address #A may still be used to send data because of terminal device #A The gateway for causing the CSCF equipment to control can not identify the data packet for carrying IP address #A, to influence the continuous of communication Property and reliability.

In view of the above problems, in this application, after CSCF equipment sends response message #A, can use with down toward A kind of few mode receives data.

Mode 3

CSCF equipment can star timer #B (that is, an example of second timer) after sending response message #A.

Also, before timer #B is then, CSCF equipment can control gateway using IP address #A and IP Location #B both sides receive data (for example, data of business #A), that is, before timer #B is then, gateway is by source address It is confirmed as the data packet of IP address #A or IP address #B from terminal device #A.Optionally, timer #B then Before, gateway is confirmed as the data packet that source address is IP address #A or IP address #B to belong to business #A.

Timer #B then after, CSCF equipment can be forbidden to use IP address #A receive data (for example, business #A Data).

Wherein, the duration of timer #B can be according to the propagation delay time (example between terminal device #A and CSCF equipment Such as, above-mentioned time delay #A) determine.For example, the duration of timer #B can be greater than or equal to the duration of time delay #A.

Thus, it is possible to ensure before terminal device stops using IP address #A to send data, gateway is still used IP address #A receives data transmission, and can be avoided gateway can not identify error of transmission caused by IP address #A.

Optionally CSCF equipment can also send the information of the duration of timer #B to terminal device #A, for example, this is fixed When device #B the information of duration can be carried in above-mentioned response message #A.

To which terminal device can determine that gateway stops using IP address #A to connect based on the duration of timer #B It (is denoted as, moment # β) at the time of receiving data, in turn, terminal device can stop using IP address #A to send out before moment # β Send data.

Mode 4

Optionally, terminal device #A can send to CSCF equipment and deactivate information #A, this, which deactivates information #A, can be used for referring to Show that terminal device #A stops using IP address #A to send data (for example, data of business #A).

Optionally, terminal device #A can send this and deactivate information #A after receiving response message #A.

To which before receiving this and deactivating information #A, gateway receives data (for example, business # using IP address #A The data of A).After receiving this and deactivating information #A, gateway is forbidden to use IP address #A and receives data (for example, business # The data of A).

Thus, it is possible to ensure before terminal device stops using IP address #A to send data, gateway is still used IP address #A receives data transmission, and can be avoided gateway can not identify error of transmission caused by IP address #A.

It should be understood that aforesaid way 3 and mode 4 can be used alone and can also be used in combination, the application is simultaneously not particularly limited.

Optionally, in S450, terminal device #A can star timer #C after receiving response message #A, and Timer #C then, in application layer discharges IP address #A.

Optionally, at the time of the duration of timer #C can also be according to the transport layer of terminal device release IP address #A Determining, for example, the duration of timer #C meets the following conditions: terminal device position at the time of transport layer discharges IP address #A In terminal device after application layer discharges IP address #A.

The IP address after change is led to by making terminal device after IP address change according to the communication means of the application Know the control equipment in IMS system, the control equipment can be made to know the alteration, and carry out based on the IP address after change Data transmission, so as to improve the continuity and reliability of communication.

The schematic stream of the communication means 700 of the application in the case that the IP address that Fig. 7 shows terminal device # α changes Journey.

As shown in fig. 7, in period # α, terminal device # α (that is, an example of the first equipment) can based on IP in S710 Location # α is communicated with gateway.

Non-limiting as example, IP address # α can be 5G core (5G Core, 5GC) and distribute to terminal device # α IP address.

Optionally, IP address # α can be corresponding with business (for example, session) # α, that is, IP address # α can be gateway The IP address used when the data of transmission services # α between equipment and terminal device # α.

Also, before period # α, gateway can know that IP address # α is the IP address of terminal device # α.

Specifically, IP address # α can be the IP address towards gateway of terminal device # α, that is, gateway The data packet that the IP address that source address field carries is IP address # α can be determined as the data packet from terminal device # α. Also, gateway can be in the purpose IP address field of data packet for needing to be sent to terminal device # α with carrying the IP Location # α.

It should be noted that the process of above-mentioned S710 can be similar to the prior art, here, in order to avoid repeating, save Slightly its detailed description.

IP address that terminal device # α is used can be determined by IP address # α with changing to IP in S720, terminal device # α Location # β.

Optionally, " IP address that terminal device # α is used changes to IP address # β by IP address # α " specifically can be Refer to: the corresponding IP address of business # α changes to IP address # β by IP address # α.

For example, when terminal device # α occur it is mobile and cause terminal device # α far from accessed access network equipment (for example, Base station) when, the communication delay of terminal device # α may be led to because terminal device # α increases at a distance from the access network equipment Increase, the reliability and accuracy of transmission reduce.Especially in the case where business # α requires low time delay, terminal device # α can be with Access is apart from the closer access network equipment of terminal device # α, also, 5GC can redistribute IP address for terminal device # α (hereinafter, in order to facilitate understanding and distinguish, be denoted as IP address # β).

That is, in this application, in the transmission process of business # α, the IP address of terminal device # α is (for example, terminal device # α The IP address used when transmission services # α) IP address # β is changed to by IP address # α.

It should be understood that listed above can result in IP address that terminal device # α is used by IP address # α with being changed to IP The reason of location # β, is merely illustrative, and the application is not limited to this, and the application can result in terminal device suitable for any The changed scene of the IP address used.

Optionally, after determining that IP address # α is changed to IP address # β, terminal device # α can be determined: if received To the destination address of data packet carry IP address # β, then the data packet is to need to be sent to the data of terminal device # α Packet.Optionally, terminal device # α can also determine that the data packet is the data packet of business # α.

That is, terminal device # α can be carried out based on IP address # β after determining that IP address # α is changed to IP address # β The preparation of received data packet.

In other words, (for example, terminal device # α within the defined period after determining that IP address # α is changed to IP address # β Before release IP address # α), terminal device # α can determine that carrying the data packet of IP address # α or IP address # β is this Terminal device # α needs received data packet, and optionally, terminal device # α, which can be determined, carries IP address # α or IP address # The data packet of β is the data packet of business # α.

Change instruction information can be sent to gateway (that is, another example of the second equipment) in S730, terminal device # α (that is, first instruction information another example, hereinafter, in order to facilitate understanding and explanation, be denoted as change instruction information # α), wherein should Change instruction information # α can serve to indicate that the IP address that terminal device # α is used is changed to IP address # β.

Non-limiting as example, which can be transport layer signaling.For example, the change instruction information can To be carried in data packet.

For example, Fig. 8 shows an example of instruction information # α, as shown in figure 8, change instruction information # α can be carried on In data packet, which may include source address field (that is, IP address # α), destination address resource and change address resource, The IP address of change IP address field carrying is the IP address (that is, IP address # β) after change.

It should be noted that the position of change IP address field in the packet can be as defined in communication protocol, or Person, change IP address field position in the packet can be terminal device # α and gateway (alternatively, the gateway Management equipment) negotiate, the application is simultaneously not particularly limited, as long as terminal device # α and gateway can be made for change instruction The understanding of each field in information is consistent.

After determining that IP address # α is changed to IP address # β, gateway can be determined: if received data The source address of packet carries IP address # β, then the data packet can be determined from terminal device # α.Optionally, gateway is also It can determine that the data packet is the data packet of business # α.

That is, gateway can be carried out to be connect based on IP address # β after determining that IP address # α is changed to IP address # β Receive the preparation of data packet.

Also, after determining that IP address # α is changed to IP address # β, IP address # β is can be used to terminal in gateway Equipment # α sends data (for example, data of business # α).

Optionally, in S740, the network equipment can send response message # α (that is, second indication information to terminal device # α An example), response message # α can serve to indicate that gateway confirmation IP address # α be changed to IP address # β.

For example, response message # α can be transport layer information, for example, response message # α can be carried on the network equipment It is sent in the data packet of terminal device # α.

According to the communication means of the application, terminal device is after IP address changes, by the alteration notification gateway Equipment, can be avoided because gateway can not know terminal device IP address occur change due to lead to not identification carry change The data packet of IP address after more.

In addition, after terminal device # α sends change instruction information # α, due to terminal device # α and gateway it Between there are data transmission delays, therefore, gateway determines that lagging behind terminal at the time of IP address # α is changed to IP address # β sets At the time of standby # α determines that IP address # α is changed to IP address # β, therefore, if terminal device # α is sending change instruction information # Send data using IP address # β immediately after α, then it may be due to the determining IP address # α of gateway is changed to IP address # β Cause the gateway that can not identify the data packet for carrying IP address # β, to influence the continuity and reliability of communication.

In view of the above problems, in this application, it after terminal device # α sends change instruction information # α, can use Following at least one mode sends data.

Mode 5

Terminal device # α can star timer # α (that is, the one of first timer after sending change instruction information # α Example).

Also, before timer # α is then, terminal device # α sends data (for example, business # α using IP address # α Data).Timer # α then after, terminal device # α using IP address # β send data (for example, the number of business # α According to).

Wherein, the duration of timer # α can be according to the propagation delay time (note between terminal device # α and CSCF equipment Make, time delay # α) determine.For example, the duration of timer # α can be greater than or equal to the duration of time delay # α.

Optionally, when the duration of timer # α can also be according to transmission between CSCF equipment and gateway Prolong and (be denoted as, time delay # β) determination.For example, the duration of timer # α can be greater than or equal to the duration of time delay # α and time delay # β The sum of.

Thus, it is possible to ensure before gateway determines that IP address # α is changed to IP address # β, still using the IP Location # α carries out data transmission, and can be avoided gateway can not identify error of transmission caused by IP address # β.

Optionally, at the time of the duration of timer # α can also be according to the transport layer of terminal device release IP address # α Determining, for example, the duration of timer # α meets the following conditions: after transport layer discharges IP address # α, terminal device is prohibited Only data are sent using IP address # α in application layer.In other words, if self terminal equipment # α determines IP address # α with being changed to IP Location # β starts to the period between transport layer release IP address # α to be duration # α, if self terminal equipment # α determines that IP address # α becomes More IP address # β starts the when a length of duration # β to timer # α then, then the duration of timer # α meets: duration # β is small In or equal to duration # α.

Thus, it is possible to avoid causing double hairs that can not identify because application layer is different with the period of transport layer release IP address # α The data sent each other.

Non-limiting as example, the duration of timer # α can be terminal device # α and CSCF equipment according to formerly logical The latency measurement of letter and obtain, alternatively, the duration of timer # α can be administrator or terminal device # is handed down in operator α's, the application is simultaneously not particularly limited.

Optionally, terminal device # α can also send the information of the duration of timer # α to gateway, for example, this is fixed When device # α the information of duration can be carried in above-mentioned change instruction information # α.

To which gateway can determine that terminal device # α stops using IP address # α based on the duration of timer # α It (is denoted as, moment # α) at the time of sending data, in turn, gateway can discharge IP address # α in IMS after moment # α With the mapping relations of terminal device # α.

Mode 6

As described above, gateway can send response message # to terminal device # α in a kind of possible embodiment α。

In this case, also, before receiving response message # α, terminal device # α sends data using IP address # α (for example, data of business # α).After receiving response message # α, terminal device # α sends data using IP address # β (for example, data of business # α).

Thus, it is possible to ensure before gateway determines that IP address # α is changed to IP address # β, still using the IP Location # α carries out data transmission, and can be avoided gateway can not identify error of transmission caused by IP address # β.

It should be understood that aforesaid way 5 and mode 6 can be used alone and can also be used in combination, the application is simultaneously not particularly limited.

In addition, after gateway sends response message # α, due to existing between terminal device # α and gateway Data transmission delay, therefore, at the time of terminal device # α determines that gateway receives change instruction information # α (in other words, eventually At the time of end equipment # α stops using IP address # α to send data) it lags behind gateway and determines IP address # α with being changed to IP At the time of the # β of location, therefore, if gateway forbids connecing based on IP address # α after receiving change instruction information # α immediately Data are received, then may be carried because terminal device # α still causes the gateway that can not identify using IP address # α transmission data The data packet of IP address # α, to influence the continuity and reliability of communication.

In view of the above problems, in this application, after gateway sends response message # α, can use with down toward A kind of few mode receives data.

Mode 7

Net equipment # α can star timer # β (that is, an example of second timer) after sending response message # α.

Also, before timer # β is then, gateway receives data using IP address # α and IP address # β both sides (for example, data of business # α), that is, before timer # β is then, gateway by source address for IP address # α or IP The data packet of location # β is confirmed as from terminal device # α.Optionally, before timer # β is then, gateway is by source Address is that the data packet of IP address # α or IP address # β is confirmed as belonging to business # α.

Timer # β then after, gateway can be forbidden to use IP address # α receive data (for example, business # α Data).

Wherein, the duration of timer # β can be according to the propagation delay time (example between terminal device # α and gateway Such as, above-mentioned time delay # α) determine.For example, the duration of timer # β can be greater than or equal to the duration of time delay # α.

Thus, it is possible to ensure before terminal device stops using IP address # α to send data, gateway is still used IP address # α receives data transmission, and can be avoided gateway can not identify error of transmission caused by IP address # α.

Optionally, gateway can also send the information of the duration of timer # β to terminal device # α, for example, this is fixed When device # β the information of duration can be carried in above-mentioned response message # α.

To which terminal device can determine that gateway stops using IP address # α to connect based on the duration of timer # β It (is denoted as, moment # β) at the time of receiving data, in turn, terminal device can stop using IP address # α to send out before moment # β Send data.

Mode 8

Optionally, terminal device # α can send to gateway and deactivate information # α, this, which deactivates information # α, can be used for referring to Show that terminal device # α stops using IP address # α to send data (for example, data of business # α).

Optionally, terminal device # α can send this and deactivate information # α after receiving response message # α.

To which before receiving this and deactivating information # α, gateway receives data (for example, business # using IP address # α The data of α).After receiving this and deactivating information # α, gateway is forbidden to use IP address # α and receives data (for example, business # The data of α).

Thus, it is possible to ensure before terminal device stops using IP address # α to send data, gateway is still used IP address # α receives data transmission, and can be avoided gateway can not identify error of transmission caused by IP address # α.

It should be understood that aforesaid way 7 and mode 8 can be used alone and can also be used in combination, the application is simultaneously not particularly limited.

Optionally, in S750, terminal device # α can star timer # γ after receiving response message # α, and Timer # γ then, in application layer discharges IP address # α.

Optionally, the duration of timer # γ can also be according to the transport layer of terminal device discharge IP address # α when Determination is carved, for example, the duration of timer # γ meets the following conditions: terminal device is in transport layer release IP address # α It carves and is located at terminal device after application layer discharges IP address # α.

The IP address after change is led to by making terminal device after IP address change according to the communication means of the application Know the control equipment in IMS system, the control equipment can be made to know the alteration, and carry out based on the IP address after change Data transmission, so as to improve the continuity and reliability of communication.

Fig. 9 shows IMS and (in other words, sets to the change of the IP address of terminal device #1 for the terminal device #1 gateway serviced Preparation changes more) in the case where the application communication means 900 schematic flow.

As shown in figure 9, in period #1, terminal device #1 (that is, an example of the first equipment) can based on IP in S910 Location #1 is communicated with gateway #1.

Non-limiting as example, IP address #1 can be 5G core (5G Core, 5GC) and distribute to gateway #1 IP address.

Optionally, IP address #1 can be corresponding with business (for example, session) #1, that is, IP address #1 can be gateway The IP address used when the data of transmission services #1 between equipment #1 and terminal device #1.

Also, before period #1, terminal device #1 can know that IP address #1 is the IP address of gateway #1.

Specifically, IP address #1 can be the IP address of the terminaloriented equipment #1 of gateway #1, that is, terminal is set The data packet that the IP address that source address field carries is IP address #1 can be determined as the number from gateway #1 by standby #1 According to packet.Also, terminal device #1 can be carried in the purpose IP address field for the data packet for needing to be sent to external network should IP address #1.

It should be noted that the process of above-mentioned S910 can be similar to the prior art, here, in order to avoid repeating, save Slightly its detailed description.

In S920, CSCF equipment can determine the IP address of IMS terminaloriented equipment #1 by IP address #1 with changing to IP Location #2.

Optionally, " IP address of IMS terminaloriented equipment #1 changes to IP address #2 by IP address #1 " specifically can be Refer to: the corresponding IP address of business #1 changes to IP address #2 by IP address #1 in IMS.

For example, when terminal device #1 occur it is mobile and cause terminal device #1 far from accessed access network equipment (for example, Base station, hereinafter, in order to facilitate understanding and distinguish, be denoted as access network equipment #1) when, may be because of terminal device #1 and the access net The distance of equipment #1 increases and the communication delay of terminal device #1 is caused to increase, and the reliability and accuracy of transmission reduce.Especially It is in the case where business #1 requires low time delay, terminal device #1 can be accessed to be set apart from the closer access net of terminal device #1 Standby (for example, base station, hereinafter, in order to facilitate understanding and distinguishing, being denoted as access network equipment #2), also, the management equipment in IMS The gateway serviced for terminal device #1 can be changed to gateway by above-mentioned gateway #1 and set by (for example, CSCF equipment) Standby #2, wherein IP address #2 can be the IP address of the terminaloriented equipment #1 of gateway #2.

That is, in this application, in the transmission process of business #1, the IP address of the side IMS is (for example, the side IMS transmission services #1 When the IP address that uses) IP address #2 is changed to by IP address #1.

It should be understood that the IP address that can result in IMS terminaloriented equipment #1 listed above is changed to IP by IP address #1 The reason of address #2, is merely illustrative, and the application is not limited to this, the application be suitable for it is any can result in IMS towards The changed scene of the IP address of terminal device.

Optionally, after determining that IP address #1 is changed to IP address #2, CSCF equipment or gateway #1 can be determined: If the destination address of data packet received by gateway #2 carries IP address #2, the effective data of the data packet Packet.Optionally, gateway #2 can also determine that the data packet is the data packet of business #1.

That is, gateway #2 can be carried out based on IP address #2 after determining that IP address #1 is changed to IP address #2 The preparation of received data packet.

In other words, (for example, terminal device #1 within the defined period after determining that IP address #1 is changed to IP address #2 Before release IP address #1), CSCF equipment can determine that it is effective for carrying the data packet of IP address #1 or IP address #2 Data packet, optionally, CSCF equipment can determine carry IP address #1 or IP address #2 data packet be business #1 Data packet.

In S930, CSCF equipment (that is, an example of the first equipment) sends change instruction information (that is, the to terminal device #1 One instruction information an example, hereinafter, in order to facilitate understanding and explanation, be denoted as change instruction information #1), wherein the change instruction Information #1 can serve to indicate that the IP address of the side IMS is changed to IP address #2.

Non-limiting as example, which can be application layer signaling.

Wherein, the specific format of change instruction information #1 can be similar to the format of above-mentioned change instruction information #A, this In, in order to avoid repeating, description is omitted.

After determining that IP address #1 is changed to IP address #2, terminal device #1 can be determined: if received number IP address #2 is carried according to the source address of packet, then can determine effective data packets of the data packet from IMS.Optionally, eventually End equipment #1 can also determine that the data packet is the data packet of business #1.

That is, gateway can be carried out to be connect based on IP address #2 after determining that IP address #1 is changed to IP address #2 Receive the preparation of data packet.

Also, after determining that IP address #1 is changed to IP address #2, CSCF equipment and gateway are with can be used IP Location #2 sends data (for example, data of business #1) to terminal device #1.

Optionally, in S440, CSCF equipment can send response message #1 (that is, second indication information to terminal device #1 An example), response message #1 can serve to indicate that CSCF equipment and gateway confirmation IP address #1 be changed to IP address #2.

According to the communication means of the application, CSCF equipment leads to the alteration after the IP address of the side IMS changes Know terminal device, can be avoided causes terminal device can not due to change occurs for the IP address that terminal device can not know that IMS is surveyed Identification carries the data packet of the IP address after having altered.

In addition, after CSCF equipment sends change instruction information #1, due between terminal device #1 and CSCF equipment There are data transmission delays, and therefore, terminal device, which determines, lags behind CSCF equipment at the time of IP address #1 is changed to IP address #2 At the time of determining that IP address #1 is changed to IP address #2, therefore, if CSCF equipment is after sending change instruction information #1 Gateway #2 is immediately controlled and sends data using IP address #2, then may not determine that IP address #1 is changed to because of terminal device #1 IP address #2 and cause terminal device #1 that can not identify the data packet for carrying IP address #2, thus influence communication continuity And reliability.

In view of the above problems, in this application, after CSCF equipment sends change instruction information #1, can use with Lower at least one mode controls gateway and sends data.

Mode 9

CSCF equipment can star timer #1 (that is, an example of first timer) after sending change instruction information #1.

Also, before timer #1 is then, CSCF equipment controls gateway #1 and sends data using IP address #1 (for example, data of business #1).

Timer #1 then after, CSCF equipment control gateway #2 using IP address #2 send data (for example, The data of business #1).

Wherein, the duration of timer #1 can be according to the propagation delay time (note between terminal device #1 and CSCF equipment Make, time delay #1) determine.For example, the duration of timer #1 can be greater than or equal to the duration of time delay #1.

Thus, it is possible to ensure before gateway determines that IP address #1 is changed to IP address #2, still using the IP Location #1 carries out data transmission, and can be avoided terminal device can not identify error of transmission caused by IP address #2.

Optionally, CSCF equipment can also send the information of the duration of timer #1 to terminal device #1, for example, this is fixed When device #1 the information of duration can be carried in above-mentioned change instruction information #1.

To which terminal device #1 can determine that gateway #1 stops using IP address # based on the duration of timer #1 It (is denoted as, moment # α) at the time of 1 transmission data, in turn, terminal device can discharge IP address #1, clearly after moment # α Except the corresponding relationship of the side IMS and IP address #1.

Mode 10

As described above, terminal device #1 can send response message # to CSCF equipment in a kind of possible embodiment 1。

In this case, also, before receiving response message #1, CSCF equipment controls gateway #1 using IP Location #1 sends data (for example, data of business #1).

After receiving response message #1, CSCF equipment controls gateway #2 and sends data using IP address #2 (for example, data of business #1).

Thus, it is possible to before ensuring to determine that IP address #1 is changed to IP address #2 in terminal for #1, still using the IP Location #1 carries out data transmission, and can be avoided terminal device #1 can not identify error of transmission caused by IP address #2.

It should be understood that aforesaid way 1 and mode 2 can be used alone and can also be used in combination, the application is simultaneously not particularly limited.

In addition, after terminal device #1 sends response message #1, due to being deposited between terminal device #1 and CSCF equipment In data transmission delay, therefore, (in other words, CSCF equipment is determined at the time of terminal device #1 receives change instruction information #1 At the time of gateway #1 stops using IP address #1 to send data) it lags behind terminal device #1 and determines that IP address #1 is changed to IP At the time of the #2 of address, therefore, if terminal device #1 forbids connecing based on IP address #1 after sending response message #1 immediately Data are received, then may cause the terminal device 1 that can not identify carrying because gateway #1 still sends data using IP address #1 There is the data packet of IP address #1, to influence the continuity and reliability of communication.

In view of the above problems, in this application, it after terminal device #1 sends response message #1, can use following At least one mode receives data.

Mode 11

Terminal device #1 can star timer #2 (that is, an example of second timer) after sending response message #1.

Also, before timer #2 is then, IP address #1 and IP address #2 both sides can be used to receive for terminal device #1 Data (for example, data of business #1), that is, before timer #2 is then, terminal device #1 can determine that source address is IP The data packet of address #1 or IP address #2 are effective.Optionally, before timer #2 is then, source address is by terminal device #1 The data packet of IP address #1 or IP address #2 are confirmed as belonging to business #1.

Timer #2 then after, terminal device #1 can be forbidden to use IP address #1 receive data (for example, industry The data of business #1).In other words, terminal device #1 can discharge IP address #1.

Wherein, the duration of timer #2 can be according to the propagation delay time (example between terminal device #1 and CSCF equipment Such as, above-mentioned time delay #1) determine.For example, the duration of timer #2 can be greater than or equal to the duration of time delay #1.

Thus, it is possible to ensure before the side IMS stops using IP address #1 to send data, terminal device still uses the IP Address #1 receives data transmission, and can be avoided terminal device can not identify error of transmission caused by IP address #1.

Optionally, terminal device #1 can also send the information of the duration of timer #2 to CSCF equipment, for example, this is fixed When device #2 the information of duration can be carried in above-mentioned response message #1.

To which CSCF equipment can determine that terminal device stops using IP address #1 to connect based on the duration of timer #2 It (is denoted as, moment # β) at the time of receiving data, in turn, CSCF equipment can forbid gateway #1 to use before moment # β IP address #1 sends data.

Mode 12

Optionally, CSCF equipment can send to terminal device #1 and deactivate information #1, this, which deactivates information #1, can be used for referring to Show that IMS survey stops using IP address #1 to send data (for example, data of business #1).

Optionally, CSCF equipment can send this and deactivate information #1 after receiving response message #1.

To which before receiving this and deactivating information #1, terminal device #1 receives data (for example, industry using IP address #1 The data of business #1).Receive this deactivate information #1 after, terminal device #1 be forbidden to use IP address #1 receive data (for example, The data of business #1), that is, after receiving this and deactivating information #1, terminal device #1 determines the data for carrying IP address #1 Packet is invalid.

Thus, it is possible to ensure before the side IMS stops using IP address #1 to send data, terminal device #1 is still used should IP address #1 receives data transmission, and can be avoided gateway can not identify error of transmission caused by IP address #1.

It should be understood that aforesaid way 11 and mode 12 can be used alone and can also be used in combination, the application is not limited especially It is fixed.

Optionally, in S950, CSCF equipment can star timer #3 after receiving response message #1, and fixed When device #3 then, discharge IP address #1 in application layer.

Optionally, the duration of timer #3 can also be according to the transport layer of gateway #1 discharge IP address #1 when Determination is carved, for example, the duration of timer #3 meets the following conditions: gateway #1 is in transport layer release IP address #1 It carves and is located at gateway #1 after application layer discharges IP address #1.

According to the communication means of the application, by making CSCF equipment after the change of the side IMS IP address, by the IP after change Location notifies terminal device, the terminal device can be made to know the alteration, and carry out data biography based on the IP address after change It is defeated, so as to improve the continuity and reliability of communication.

According to preceding method, Figure 10 is the schematic diagram of communication device 10 provided by the embodiments of the present application, as shown in Figure 10, should The equipment that device 10 can change for routing iinformation, for example, in above-mentioned terminal device, IMS management equipment (for example, CSCF equipment) or IMS in transmission device (for example, gateway), or chip or circuit, for example may be disposed at State change equipment occurs for routing iinformation chip or circuit.

The device 10 may include processor 11 (that is, an example of processing unit) and memory 12.The memory 12 is used for Store instruction, the processor 11 are used to execute the instruction of the memory 12 storage, so that the device 20 realizes such as Fig. 4, Fig. 7 or figure The step of equipment that routing iinformation changes in corresponding method in 9 executes.

Further, the device 10 can also include input port 13 (that is, an example of communication unit) and delivery outlet 14 (that is, Another example of communication unit).Further, the processor 11, memory 12, input port 13 and delivery outlet 14 can pass through inside Connecting path communicates with each other, transmitting control and/or data-signal.The memory 12 is for storing computer program, the processor 11, which can be used for from the memory 12 calling and running the calculating, has the records of distance by the log sequence, receives signal to control input port 13, controls defeated The step of outlet 14 sends signal, completes terminal device in the above method.The memory 12 can integrate in processor 11, It can be provided separately with processor 11.

Optionally, if the communication device 10 is communication equipment, which is receiver, which is to send Device.Wherein, receiver and transmitter can be same or different physical entity.When for identical physical entity, Ke Yitong Referred to as transceiver.

Optionally, if the communication device 10 is chip or circuit, which is input interface, which is defeated Outgoing interface.

As a kind of implementation, the function of input port 13 and delivery outlet 14 be can be considered through transmission circuit or transmitting-receiving Special chip realize.Processor 11 is it is contemplated that real by dedicated processes chip, processing circuit, processor or general-purpose chip It is existing.

As another implementation, it may be considered that realize that the embodiment of the present application is provided using the mode of general purpose computer Communication equipment.It will realize that the program code of 14 function of processor 11, input port 13 and delivery outlet stores in memory 12, General processor realizes the function of processor 11, input port 13 and delivery outlet 14 by the code in execution memory 12.

Wherein, each module or unit can be used for executing what routing iinformation in the above method changed in communication device 10 Each movement or treatment process performed by equipment (for example, first equipment), here, in order to avoid repeating, description is omitted.

Concept relevant to technical solution provided by the embodiments of the present application involved in the device 10 is explained and is described in detail And other steps refer to the description as described in these contents in preceding method or other embodiments, are not repeated herein.

According to preceding method, Figure 11 is the schematic diagram of communication device 11 provided by the embodiments of the present application, as shown in figure 11, should The equipment that device 20 can change for the routing iinformation of Correspondent Node, for example, the management in above-mentioned terminal device, IMS is set Transmission device (for example, gateway) in standby (for example, CSCF equipment) or IMS, or chip or circuit, such as can It is set to the chip or circuit of the equipment that the routing iinformation of above-mentioned Correspondent Node changes.

The device 20 may include processor 21 (that is, an example of processing unit) and memory 22.The memory 22 is used for Store instruction, the processor 21 are used to execute the instruction of the memory 22 storage, so that the device 20 realizes such as Fig. 4, Fig. 7 or figure The step of equipment that the routing iinformation of Correspondent Node changes in corresponding method in 9 executes.

Further, the device 20 can also include input port 23 (that is, an example of communication unit) and delivery outlet 24 (that is, Another example of communication unit).Further, the processor 21, memory 22, input port 23 and delivery outlet 24 can pass through inside Connecting path communicates with each other, transmitting control and/or data-signal.The memory 22 is for storing computer program, the processor 21, which can be used for from the memory 22 calling and running the calculating, has the records of distance by the log sequence, receives signal to control input port 23, controls defeated The step of outlet 24 sends signal, completes terminal device in the above method.The memory 22 can integrate in processor 21, It can be provided separately with processor 21.

Optionally, if the communication device 20 is communication equipment, which is receiver, which is to send Device.Wherein, receiver and transmitter can be same or different physical entity.When for identical physical entity, Ke Yitong Referred to as transceiver.

Optionally, if the communication device 20 is chip or circuit, which is input interface, which is defeated Outgoing interface.

As a kind of implementation, the function of input port 23 and delivery outlet 24 be can be considered through transmission circuit or transmitting-receiving Special chip realize.Processor 21 is it is contemplated that real by dedicated processes chip, processing circuit, processor or general-purpose chip It is existing.

As another implementation, it may be considered that realize that the embodiment of the present application is provided using the mode of general purpose computer Communication equipment.It will realize that the program code of 24 function of processor 21, input port 23 and delivery outlet is stored in memory 22, General processor realizes the function of processor 21, input port 23 and delivery outlet 24 by the code in execution memory 22.

Wherein, each module or unit can be used for executing the routing iinformation of Correspondent Node in the above method in communication device 20 Each movement or treatment process performed by change (that is, second equipment) occurs and in order to avoid repeating, omits it specifically here It is bright.

Concept relevant to technical solution provided by the embodiments of the present application involved in the device 20 is explained and is described in detail And other steps refer to the description as described in these contents in preceding method or other embodiments, are not repeated herein.

Figure 12 is a kind of structural schematic diagram of terminal device 30 provided by the present application.For ease of description, Figure 12 is only shown The main component of terminal device.As shown in figure 12, terminal device 30 include processor, memory, control circuit, antenna and Input/output unit.

Processor is mainly used for handling communication protocol and communication data, and controls to entire terminal device System, execution software program, the data of processing software program, such as supporting terminal device to execute above-mentioned transmitting pre-encoding matrix Indicating means embodiment described in movement.Memory is mainly used for storing software program and data, such as stores above-mentioned Code book described in embodiment.Control circuit is mainly used for the conversion of baseband signal and radiofrequency signal and to radiofrequency signal Processing.Control circuit and antenna can also be called transceiver together, be mainly used for the radiofrequency signal of transceiving electromagnetic waveshape.Input Output device, such as touch screen, display screen, keyboard etc. are mainly used for receiving the data of user's input and export number to user According to.

After terminal device booting, processor can read the software program in storage unit, explain and execute software journey The instruction of sequence, the data of processing software program.When needing through wireless transmission data, processor is carried out to sent data After Base-Band Processing, for output baseband signal to radio circuit, radio circuit carries out radiofrequency signal baseband signal after radio frequency processing It is sent out in the form of an electromagnetic wave by antenna.When there is data to be sent to terminal device, radio circuit is received by antenna To radiofrequency signal, radiofrequency signal is converted into baseband signal, and baseband signal is exported to processor, processor is by baseband signal It is converted to data and the data is handled.

It will be understood by those skilled in the art that for ease of description, Fig. 5 illustrates only a memory and processor.? In actual terminal device, may exist multiple processors and memory.Memory is referred to as storage medium or storage Equipment etc., the embodiment of the present application is without limitation.

As a kind of optional implementation, processor may include baseband processor and central processing unit, Base-Band Processing Device is mainly used for handling communication protocol and communication data, and central processing unit is mainly used for carrying out entire terminal device Control executes software program, the data of processing software program.Processor in Fig. 5 is integrated with baseband processor and central processing The function of device, it will be understood by those skilled in the art that baseband processor and central processing unit are also possible to processing independent Device is interconnected by technologies such as buses.It will be understood by those skilled in the art that terminal device may include multiple baseband processor with Different network formats are adapted to, terminal device may include multiple central processing units to enhance its processing capacity, terminal device All parts can be connected by various buses.The baseband processor can also be expressed as at baseband processing circuitry or base band Manage chip.The central processing unit can also be expressed as central processing circuit or central processing element.To communication protocol and The function that communication data is handled can it is built-in in the processor, storage unit can also be stored in form of software programs In, software program is executed to realize Base-Band Processing function by processor.

Illustratively, in the embodiment of the present application, can by with transmission-receiving function antenna and control circuit be considered as terminal Processor with processing function is considered as the processing unit 302 of terminal device 30 by the Transmit-Receive Unit 201 of equipment 20.Such as Figure 12 Shown, terminal device 30 includes Transmit-Receive Unit 301 and processing unit 302.Transmit-Receive Unit be referred to as transceiver, transceiver, R-T unit etc..Optionally, the device in Transmit-Receive Unit 301 for realizing receive capabilities can be considered as receiving unit, will received Device in bill member 301 for realizing sending function is considered as transmission unit, i.e. Transmit-Receive Unit 301 includes receiving unit and transmission Unit.Illustratively, receiving unit is referred to as receiver, receiver, reception circuit etc., and transmission unit is properly termed as emitting Machine, transmitter or transmit circuit etc..

Terminal device shown in Figure 12 can execute each dynamic performed by terminal device in the above method 400,700 or 900 Make, here, in order to avoid repeating, description is omitted.

It should be understood that the processor can be central processing unit (central processing in the embodiment of the present application Unit, CPU), which can also be other general processors, digital signal processor (digital signal Processor, DSP), it is specific integrated circuit (application specific integrated circuit, ASIC), existing At programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete Door or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor can also To be any conventional processor etc..

It should also be understood that the memory in the embodiment of the present application can be volatile memory or nonvolatile memory, or It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (read- Only memory, ROM), programmable read only memory (programmable ROM, PROM), the read-only storage of erasable programmable Device (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (random access memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, random access memory (the random access of many forms Memory, RAM) it is available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), Synchronous Dynamic Random Access Memory (synchronous DRAM, SDRAM), Double Data Rate synchronous dynamic with Machine accesses memory (double data rate SDRAM, DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (enhanced SDRAM, ESDRAM), synchronized links dynamic random access memory (synchlink DRAM, SLDRAM) and straight Meet rambus random access memory (direct rambus RAM, DR RAM).

Above-described embodiment can be realized wholly or partly by software, hardware, firmware or any other combination.When When using software realization, above-described embodiment can be realized entirely or partly in the form of a computer program product.The calculating Machine program product includes one or more computer instructions or computer program.Load or execute on computers the computer When instruction or computer program, entirely or partly generate according to process or function described in the embodiment of the present application.The calculating Machine can be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can To store in a computer-readable storage medium, or computer-readable deposit from a computer readable storage medium to another Storage media transmission, for example, the computer instruction can pass through from a web-site, computer, server or data center Wired (such as infrared, wireless, microwave etc.) mode is passed to another web-site, computer, server or data center It is defeated.The computer readable storage medium can be any usable medium that computer can access or include one or more The data storage devices such as server, the data center of a usable medium set.The usable medium can be magnetic medium (example Such as, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium.Semiconductor medium can be solid state hard disk.

It should be understood that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can deposit In three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B. In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

It should be understood that magnitude of the sequence numbers of the above procedures are not meant to execute suitable in the various embodiments of the application Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present application Process constitutes any restriction.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.It is apparent to those skilled in the art that for convenience and simplicity of description, foregoing description The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, no longer superfluous herein It states.In several embodiments provided herein, it should be understood that disclosed systems, devices and methods can pass through it Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit Letter connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.In addition, each functional unit in each embodiment of the application can integrate in one processing unit, it is also possible to each Unit physically exists alone, and can also be integrated in one unit with two or more units.If the function is with software The form of functional unit is realized and when sold or used as an independent product, can store in a computer-readable storage In medium.Based on this understanding, the technical solution of the application substantially in other words the part that contributes to existing technology or The part of person's technical solution can be embodied in the form of software products, which is stored in a storage In medium, including some instructions are used so that a computer equipment (can be personal computer, server or network are set It is standby etc.) execute all or part of the steps of each embodiment the method for the application.And storage medium above-mentioned includes: USB flash disk, moves Dynamic hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), the various media that can store program code such as magnetic or disk.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims (19)

1. a kind of communication means characterized by comprising

First equipment send first instruction information, it is described first instruction information be used to indicate the routing iinformation towards the second equipment from First routing iinformation is changed to secondary route information, and the routing iinformation includes Internet protocol IP address and/or port；

First equipment is within the first period from after sending the first instruction information, according to first routing iinformation Control is sent for the data of second equipment or data receiver；

First equipment is after first period, according to secondary route information control for second equipment Data are sent or data receiver.

2. communication means according to claim 1, which is characterized in that the method also includes:

First equipment discharges first routing iinformation after first period.

3. communication means according to claim 1 or 2, which is characterized in that first equipment is sending described first certainly Indicate information after the first period in, according to first routing iinformation control for second equipment data send or Data receiver, comprising:

First equipment starts preset first timer after sending the first instruction information, and fixed described first When device then before, according to first routing iinformation control for second equipment data send or data receiver；With And

First equipment is after first period, according to secondary route information control for second equipment Data are sent or data receiver, comprising:

First equipment the first timer then after, according to the secondary route information control be directed to described second The data of equipment are sent or data receiver；

Wherein, the duration of the first timer is true according to the propagation delay time between first equipment and second equipment Fixed, and/or

The duration of the first timer is determined at the time of discharging first routing iinformation according to first equipment.

4. communication means according to claim 3, which is characterized in that the first instruction information is also used to indicate described the The duration of one timer.

5. communication means according to any one of claim 1 to 3, which is characterized in that the method also includes:

First equipment receives second indication information, and the second indication information is used to indicate second equipment and receives institute State the first instruction information；And

First period is to send the first instruction information to first equipment from first equipment to receive second Indicate the period between information.

6. communication means according to claim 5, which is characterized in that the second indication information is also used to indicate that second is fixed When device duration, wherein the second timer is second equipment to be started from after receiving the first instruction information Timer, also, the mapping relations between first equipment and first routing iinformation are arrived in the second timer When after will be deleted by second equipment,

The method also includes:

First equipment is deleted after undergoing the duration of the second timer since receive the second indication information Except the mapping relations between first equipment and first routing iinformation.

7. communication means according to any one of claim 1 to 6, which is characterized in that first equipment sets for terminal Standby, second equipment is the call session control function CSCF equipment in internet protocol multimedia subsystem IMS network.

8. communication means according to any one of claim 1 to 6, which is characterized in that first equipment is internet association The agent conversation control function CSCF equipment in multimedia subsystem, IMS network is discussed, second equipment is terminal device,

First equipment is within the first period from after sending the first instruction information, according to first routing iinformation Control is sent for the data of second equipment or data receiver, comprising:

First equipment controls the first gateway and institute within the first period from after sending the first instruction information It states the second equipment and carries out data transmission or data receiver, first routing iinformation is the routing letter of first gateway Breath；

First equipment is after first period, according to secondary route information control for second equipment Data are sent or data receiver, comprising:

For first equipment after first period, the second gateway of control and second equipment carry out data transmission Or data receiver, the secondary route information are the routing iinformations of second gateway.

9. a kind of communication means characterized by comprising

Second equipment receives the first instruction information, and the first instruction information is used to indicate the first equipment towards second equipment Routing iinformation be changed to secondary route information from the first routing iinformation, the routing iinformation include Internet protocol IP address and/ Or port；

Second equipment is within the first period from after receiving the first instruction information, according to first routing iinformation Control is sent for the data of first equipment or data receiver；

Second equipment is after first period, according to secondary route information control for first equipment Data are sent or data receiver.

10. communication means according to claim 9, which is characterized in that second equipment refers to from reception described first Show in the first period after information, is sent according to first routing iinformation control for the data of first equipment or number According to reception, comprising:

Second equipment starts preset first timer after receiving the first instruction information, and described first Timer then before, according to first routing iinformation control for first equipment data send or data receiver； And

Second equipment is after first period, according to secondary route information control for first equipment Data are sent or data receiver, comprising:

Second equipment the first timer then after, according to the secondary route information control be directed to described first The data of equipment are sent or data receiver；

Wherein, the duration of the first timer is true according to the propagation delay time between first equipment and second equipment Fixed, and/or

The duration of the first timer is determined at the time of discharging first routing iinformation according to first equipment.

11. communication means according to claim 10, which is characterized in that the first instruction information is also used to indicate described The duration of first timer.

12. the communication means according to any one of claim 9 to 11, which is characterized in that the method also includes:

Second equipment sends second indication information to first equipment, and the second indication information is used to indicate described the Two equipment receive the first instruction information.

13. communication means according to claim 12, which is characterized in that second equipment refers to from reception described first Show in the first period after information, is sent according to first routing iinformation control for the data of first equipment or number According to reception, comprising:

Second equipment starts preset second timer after sending the second indication information, and fixed described second When device then before, according to first routing iinformation control for first equipment data send or data receiver；With And

Second equipment is after first period, according to secondary route information control for first equipment Data are sent or data receiver, comprising:

Second equipment the second timer then after, according to the secondary route information control be directed to described first The data of equipment are sent or data receiver；

Wherein, the duration of the second timer is true according to the propagation delay time between first equipment and second equipment Fixed.

14. communication means according to claim 13, which is characterized in that the method also includes:

Second equipment the second timer then after, delete between first equipment and first routing iinformation Mapping relations exist.

15. the communication means according to any one of claim 9 to 14, which is characterized in that first equipment is terminal Equipment, second equipment are the call session control function CSCF equipment in internet protocol multimedia subsystem IMS network,

Second equipment is within the first period from after receiving the first instruction information, according to first routing iinformation Control is sent for the data of first equipment or data receiver, comprising:

Second equipment from receive it is described first instruction information after the first period in, control the first gateway according to First routing iinformation carries out data with first equipment and sends or receives；

Second equipment is after first period, according to secondary route information control for first equipment Data are sent or data receiver, comprising:

For second equipment after first period, the second gateway of control and first equipment carry out data transmission Or data receiver.

16. the communication means according to any one of claim 9 to 14, which is characterized in that first equipment is internet Call session control function CSCF equipment in protocol multi-media sub-system IMS network, second equipment are terminal device.

17. a kind of communication device characterized by comprising

Processor, for executing the computer program stored in memory so that the communication device perform claim require 1 to Communication means described in any one of 16.

18. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium Program, when the computer program is run on computers, so that the computer is executed as any in claim 1 to 16 Communication means described in one.

19. a kind of chip system characterized by comprising processor, for being called from memory and running computer journey Sequence, so that the communication equipment for being equipped with the chip system executes the communication party as described in any one of claim 1 to 16 Method.