CN104244294A - Direct communication path switching method and equipment - Google Patents
Direct communication path switching method and equipment Download PDFInfo
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- CN104244294A CN104244294A CN201310226567.6A CN201310226567A CN104244294A CN 104244294 A CN104244294 A CN 104244294A CN 201310226567 A CN201310226567 A CN 201310226567A CN 104244294 A CN104244294 A CN 104244294A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/03—Reselecting a link using a direct mode connection
- H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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Abstract
The invention discloses a direct communication path switching method and equipment thereof. The direct communication path switching method comprises the steps of: receiving a measurement request by an initiating-side terminal of a direct connect communication business session, wherein the measurement request is transmitted by a base station in which the initiating-side terminal stays, the measurement request carries measurement configuration information and a mark of a receiving-side terminal of the direct connect communication business session, and the initiating-side terminal measures a signal between the initiating-side terminal and the receiving-side terminal which corresponds with the mark of the receiving-side terminal according to the received measurement request; and performing direct communication path switching decision by the initiating-side terminal, and initiating a path switching process from a direct communication path to a core network communication path when the decision shows that direct communication path switching is required. The direct communication path switching method can realize path switching in direct communication path transmission based on terminal measurement.
Description
Technical field
The present invention relates to wireless communication technology field, especially a kind of direct communication path reverse method and equipment.
Background technology
At present, 3GPP(3rd Generation Partnership Project, third generation partner program) in the communication process of two equipment rooms of definition, its data channel as shown in Figure 1: UE1(User Equipment, subscriber equipment, i.e. terminal) data are sent to the eNB(evolved NodeB of service, enode b, i.e. base station), eNB passes data to the equipment of the core network of service---SGW(Serving GW, gateway) and PGW(PDN Gateway, PDN Gateway; Wherein, PDN is the abbreviation of Packet Date Network, Yi Ji Packet Data Network), PGW routes data to service PGW and SGW of UE2, and UE2SGW passes data to the service eNB of UE2, then passes to UE2 by eNB.Example shown in Fig. 1 is the scene when SGW with PGW of UE1 with UE2 is identical, and the service PGW now eliminating UE1 routes data to the process of the service PGW of UE2.
As seen from Figure 1, even if the position between two terminals of communication is very close, communication data also needs could arrive opposite end by respective service eNB, core net, and communication delay is very large, but also can take Internet resources.For this reason, 3GPP to study at present about nearby device between the communication technology.If when so-called adjacent communication refers to that communicating pair distance is very near, can realize communicating between two UE or only realizing high-speed traffic by the transmission of eNB.
Fig. 2 A and Fig. 2 B shows the data transfer path figure realized after adjacent communication between terminal.As shown in Figure 2 A, UE1 and UE2 can be transmitted by the direct communication path between UE1 and UE2, does not need through mobile network appliance; As shown in Figure 2 B, when UE1 and UE2 is connected to same eNB, can service eNB forwarding data be passed through, and not need data route to cross core net.Adjacent communication transmission means can reduce the time delay of transfer of data, and can save the Internet resources of the resource of network, particularly core net.
Network can be supported that UE has simultaneously and transmit to the communication path transmission of core net and the direct communication path to other UE, according to current protocol requirement, requires to support that the Business Stream of UE is switched to core network communications path from direct communication path.But not yet there is corresponding solution at present.
Summary of the invention
Embodiments provide a kind of direct communication path reverse method and equipment, in order to realize the path switching of direct communication path transmission based on terminal measurement.
The communication link path reverse method that the embodiment of the present invention provides, comprising:
Initiator's terminal of direct-connected communication service session receives the measurement request of the resident base station transmission of described initiator's terminal, the mark of the receiving side terminal of measurement configuration information and described direct-connected communication service session is carried in described measurement request, described initiator's terminal, according to the measurement request received, measures the signal between the receiving side terminal corresponding with the mark of described receiving side terminal;
Described initiator's terminal is carried out direct communication path according to measurement result and is switched judgement, and when judgement is switched for needs execution direct communication path, initiates the path switching process from direct communication path to core network communications path.
The terminal equipment that the embodiment of the present invention provides, comprising:
Measure configuration module, when this terminal equipment is service conversation initiator terminal equipment, receive the measurement request that the resident base station of described initiator's terminal sends, in described measurement request, carry the mark of the receiving side terminal of measurement configuration information and described direct-connected communication service session;
Measurement module, for according to the measurement request received, measures the signal between the receiving side terminal corresponding with the mark of described receiving side terminal;
Path switching judging module, switches judgement for carrying out direct communication path according to measurement result;
Path switching module, for when described path switching judging module judgement is switched for needs execution direct communication path, initiates the path switching process from direct communication path to core network communications path.
In the above embodiment of the present invention, by service conversation the receiving side terminal that initiator's terminal is measured and initiator's terminal carries out direct-connected communication between signal, and when the signal measured meets path switching condition, initiate the path switching process from direct communication path to core network communications path, thus when the terminal of two adjacent communications can not keep direct communication to transmit, data flow is switched to core network communications path from direct communication path transmit, achieve the path switching process of the direct communication path measured based on terminal, and then the continuity of the business of guarantee.
Accompanying drawing explanation
Fig. 1 is the communication between devices path schematic diagram of 3GPP definition in prior art;
Fig. 2 A and Fig. 2 B is adjacent communication path schematic diagram in prior art;
The adjacent communication link signal path based on terminal measurement that Fig. 3 provides for the embodiment of the present invention switches FB(flow block);
The adjacent communication link signal path based on terminal measurement that Fig. 4 provides for the embodiment of the present invention switches flow process signaling diagram;
The structural representation of the terminal equipment that Fig. 5 provides for the embodiment of the present invention.
Embodiment
LTE(Long Term Evolution, Long Term Evolution) network can provide direct communication transfer of data for two mutually contiguous UE, two UE are made can directly to use the interface-free resources transceiving data between two terminals by core network communications path, namely by direct communication path transmitting data stream.The demand making its distance each other can not meet adjacent communication if two UE are moved, in order to ensure the continuity of business, then needs the data flow on direct communication path to be switched in core net carrying.For this demand, the embodiment of the present invention proposes a kind of direct communication path reverse method measured based on terminal, for when the UE of two adjacent communications can not keep direct communication to transmit, data flow is switched to core network communications path from direct communication path and transmits.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Terminal in the embodiment of the present invention supports that the transmission of the communication path of core net and the direct communication path to other terminal transmit simultaneously.For convenience of description, be described in the embodiment of the present invention based on following agreement: service conversation initiator terminal is called initiator's terminal, the distant terminal of the service conversation of initiator's terminal being initiated is called receiving side terminal.In other words, initiator's terminal refers to that the terminal of service conversation is set up in request, and receiving side terminal refers to the terminal receiving this service conversation.
Below to be applied as example in LTE system, the embodiment of the present invention is described in detail.
In the embodiment of the present invention, initiator UE is configured with measurement configuration information, the recipient UE that initiator UE exists direct communication path according to this measurement configuration information pair and initiator UE carries out input, triggers the path switching of direct communication path according to signal detecting result.Wherein, the described measurement configuration information on initiator UE is configured by the eNB that initiator UE is resident.
Set up direct communication with UE1 and UE2 below, wherein UE1 is initiator UE, UE2 be recipient UE, eNB1 be the current resident base station of UE1 is example, and the layoutprocedure of measurement configuration information is described, and direct communication path reversed process.
ENB1 sends to UE1 the request of measurement, to indicate the signal between UE1 measurement UE1 and UE2.This measurement request sends to UE1 by dedicated signaling (idle message), also sends to UE1 by the message in existing flow process.
During concrete enforcement, eNB1 can set up in the process of direct communication path for UE1 and UE2, and measurement request is sent to UE1.Such as, eNB1 is after UE1 distributes direct communication path resources, the request of measuring is carried on send to UE1 be used for notifying send to UE1 in the message of direct communication resource; Or eNB1 can set up in the process of direct communication path for UE1 and UE2, sending to UE1 the request of measurement by dedicated signaling.ENB1 also when knowing that UE1 and UE2 will set up direct communication path, can send to UE1 the request of measurement by dedicated signaling.
Measure the mark including UE2 in request, and measurement configuration information.Measurement configuration information comprise measure thresholding, measuring intervals of TIME (as measuring period), measurement event, measurement report the measurement parameters such as parameter.Wherein, measure the parameter that thresholding can be characterization signal intensity, when the intensity of the signal of the UE2 that UE1 receives is lower than this measurement thresholding, need to trigger direct communication path reversed process.ENB1 can arrange measurement parameter according to the attribute of the direct communication business set up between UE1 and UE2, such as, the direct communication keeping video calling within the scope of 100 meters is allowed between UE1 and UE2, then eNB1 by UE at a distance of 100 meters of distances time received signal strength empirical value, be set to the measurement thresholding that video call service is corresponding.
Further, can for two or more business configuration measurement parameter in measurement configuration information.Such as, the direct communication business set up between UE1 and UE2 comprises video call service and voice conversation business, eNB1 is respectively for video call service and voice conversation business configuration measurement parameter.Concrete, the communication distance that eNB1 acquisition video call service and voice conversation business allow: the direct communication allowing to keep video calling between UE1 and UE2 within the scope of 100 meters, keeps the direct communication of voice conversation within the scope of 500 meters; The distance allowed due to the direct communication of voice conversation business is greater than video call service, therefore eNB1 is the measurement thresholding that the measurement thresholding of voice conversation business setting is less than for video call service is arranged, be greater than the measuring period for video call service is arranged the measuring period for voice conversation business setting, can ensure like this to switch for the video call service triggering direct communication path of rdativery sensitive in time.
It should be noted that, eNB1 can from HSS(Home Subscriber Server) obtain UE1 or/and the CAMEL-Subscription-Information of UE2, or obtain direct communication business rule information from business rule server, or according to the configuration information of application layer, or the QoS(Quality of Service of carrying is set up from UE, service quality) information, obtain the attribute information of the direct communication business set up between UE1 and UE2.
Further, eNB1 can also send measurement updaue request to UE1, to ask to upgrade measurement parameter.Such as, some CAMEL-Subscription-Information of UE1 or UE2 changes, or the attribute of direct communication changes, or the setting of some application layer changes, and all likely can affect the direct communication path hold mode between UE1 and UE2.For this situation, eNB1 sends measurement updaue request, to upgrade the configuration of measurement of correlation parameter to meet current demand to UE1.Such as, the direct communication keeping video calling in the scope of 100 meters is allowed before UE1 and UE2, and due to the impact of some factor, UE1 and UE2 only allows the direct communication keeping video calling in the scope of 50 meters now, then according to this change, the measurement thresholding that eNB1 raising video call service is corresponding, the measuring period that shortening video call service is corresponding, and send measurement updaue request message to UE1, wherein carry the measurement parameter after renewal.
UE1 carries out input according to the measurement configuration information on it to UE2, and trigger direct communication path according to signal detecting result and switch, its flow process can be as shown in Figure 3.
See Fig. 3, the direct communication path based on terminal measurement provided for the embodiment of the present invention switches flow process, and this flow process can comprise:
Step 301:UE1 measures the signal between UE2 according to the measurement configuration information on it;
Step 302:UE1 measure UE2 send signal meet path switching condition time, initiate the path switching process from direct communication path to core network communications path.Wherein, when the measurement thresholding in measurement configuration information is the parameter of characterization signal intensity, if UE1 measures the intensity of the signal that UE2 sends lower than when measuring thresholding, namely mean and meet path switching condition, thus initiate the path switching process from direct communication path to core network communications path.
Further, after step 302, after UE1 and UE2 completes the path switching of direct communication path, also can comprise the following steps:
Step 303:UE1 and UE2 discharges the interface-free resources of the direct communication path between UE1 and UE2, and deletes the contextual information of this direct communication path.
In above-mentioned flow process, from direct communication path to the path switching process in core network communications path, can as shown in Figure 4, comprise the following steps:
Step 401:UE1 is by the chain of command between UE1 and UE2 to UE2 transmit path switching request message, and the data flow on direct communication path is switched to core network communications path by request UE2.
Step 402:UE1 and the UE2 data flow be respectively on direct communication path selects the carrying by core network.
Step 403:UE2, after determining the carrying by core network for the data flow on direct communication path, switches response message to UE1 return path.
Step 404:UE1 and UE2 be execution route reversed process respectively, that is, by the data stream on direct communication path to determined by the bearer connection of core network.
Data flow carrying due to different business allows the scope using direct communication path different, therefore when carrying out direct communication path and switching, can carry out path switching targetedly to the data flow on direct communication path.Such as, user may contract and allow within the scope of 100 meters, use the talk business of direct communication path transmission of video, allow within the scope of 500 meters, use the talk business of direct communication path transporting speech, then when UE1 and UE2 moves to the 200 meters of scopes in interval, video call service can not use direct communication path to transmit, and voice conversation business still can use direct communication path to transmit.
For above situation, in the step 401 of above-mentioned flow process, UE1 may be that the data flow on all direct communication paths is switched to core net path by request to the path switching request message that UE2 sends, what also may ask is that the partial data stream on direct communication path is switched to core net path, is therefore sent to the mark or stream identification list that carry the data flow needing path switching in the path switching request message of UE2 at UE1.The mark of described data flow can be the mark of carrying, also can be the TFT(Traffic Flow Template in a certain carrying, traffic flow template) information such as mark.Accordingly, in step 402, the mark of the data flow that UE1 and UE2 safeguards respectively according to demand, for corresponding data flow determines the carrying by core network.Such as, the intensity of the signal that UE1 receives from UE2 is lower than measurement thresholding corresponding to video call service but higher than measurement thresholding corresponding to voice conversation business, show that the data flow needs of video call service are switched to core network communications path from direct communication path, and the data flow of voice conversation business still can use direct communication path to transmit, therefore the mark of the data flow of video call service is carried on path switching request message and sends to UE2 by UE1.
In the step 402 of above-mentioned flow process, UE1 or UE2 is when determining the carrying by core net, if need the data flow of switching can be mapped to existing by the bearer connection of core net, then the existing bearer connection by core net of UE selection transmits the data flow that described needs are switched; If need the data flow of switching can not be mapped to existing by the bearer connection of core net, then UE initiates new bearing activation process to served network entity, to activate by the carrying of core net, the data flow that the core net carrying of current activation will be used for transmitting described needs and switches.
Such as, between UE1 and UE2, establish the carrying 1 of direct communication, also maintain carrying 2 and the connection carrying 3 between UE1 and core net simultaneously.When UE1 needs data flow 1 to be switched on core net path, UE1 judges whether data flow 1 can be mapped in current carrying 2 or carrying 3.Its criterion mainly sees the APN(Access Point Name of data flow 1 correspondence, access point name), whether the TFT of the QoS attribute of data flow 1 or data flow 1 with existing carrying 2 or carry 3 and match, if coupling, then confirm data flow 1 to be mapped in the carrying that matches.
If data flow 1 can use carrying 2 to transmit, but do not have the corresponding TFT of data flow 1 in carrying 2, then UE initiates the modification process to carrying 2, increases the TFT of data flow 1, thus data flow 1 is associated with in carrying 2.
If data flow 1 can not use carrying 2 or carrying 3 transmission, then UE will be initiated to carrying foundation or the PDN connection establishment process of core net, for data flow 1 sets up carrying 4, thus data flow 1 is associated with in carrying 4.
In the step 404 of above-mentioned flow process, UE is selected by the carrying of core network by being associated with by local data flow, thus by the data stream on direct communication path to selected by the bearer connection of core network.Such as, by by the IP five-tuple information of data flow, (IP five-tuple can unique identification data stream, IP five-tuple generally includes source IP address, source port, object IP address, destination interface, transport layer protocol number) or other can the information of identification data stream to be associated with the mark of the carrying by core network relation, thus local data flow is associated with selected by the carrying of core network.
Can be found out by foregoing description, the embodiment of the present invention, by the measurement based on terminal, achieves the path switching of direct communication path to core network communications path.In addition, the process of Business Stream path switching between direct communication path and core network communications path, does not impact the business data flow that other activates.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of terminal equipment.
See Fig. 5, be the structural representation of the terminal equipment that the embodiment of the present invention provides, this terminal equipment can comprise: measurement module 51, path switching judging module 52, path switching module 53, further, also can comprise and measure configuration module 54, wherein:
Measure configuration module 54, when this terminal equipment is service conversation initiator terminal equipment, receive the measurement request that the resident base station of described initiator's terminal sends, in described measurement request, carry the mark of the receiving side terminal of measurement configuration information and described direct-connected communication service session;
Measurement module 51, for according to the measurement request received, measures the signal between the receiving side terminal corresponding with the mark of described receiving side terminal;
Path switching judging module 52, switches judgement for carrying out direct communication path according to measurement result;
Path switching module 53, for adjudicate in described path switching judging module 52 for needs perform direct communication path switch time, initiate the path switching process from direct communication path to core network communications path.
Concrete, measuring configuration module 54 is setting up in the process of direct communication path with described receiving side terminal, by receiving the specific messages of the resident base station transmission of described initiator's terminal or the message for described initiator's terminal instruction direct communication path resource, receiving to measure and asking.
Concrete, be configured with path switching thresholding in described measurement configuration information.Accordingly, path switching judging module 52 is when measuring the intensity of signal that described receiving side terminal sends lower than path switching thresholding, and judgement needs to perform direct communication path and switches.
Concrete, in described measurement configuration information, be configured with corresponding measurement configuration information for different type services.Accordingly, the measurement configuration information that path switching module 53 is corresponding according to all types of business, during the path switching thresholding of the intensity of signal measuring the first business that described receiving side terminal sends lower than the first business, judgement needs the data flow of the first business to be switched to core network communications path from direct communication path.
Concrete, path switching module 53 specifically for, to described receiving side terminal transmit path switching request, and for described receiving side terminal between direct communication path on data flow determine by core network carrying, wherein, the direct communication path between described sending side terminal is switched to core network communications path for asking described receiving side terminal by described path switching request; After path switching module 53 receives the path switching response that described receiving side terminal returns, by the data stream on the direct communication path between described receiving side terminal to determined by the carrying of core network, wherein, to be described receiving side terminal sent by the carrying of core network determining for the data flow on the direct communication path between described initiator's terminal the response of described path switching afterwards.
Concrete, path switching module 53 specifically for, be that the data flow on direct communication path selects the existing carrying by core network; Or, be the existing carrying by core network of data flow amendment on direct communication path; Or, for the data flow on direct communication path sets up the carrying by core network.Wherein, path switching module 53 can, according to APN, QoS or TFT of the data flow on direct communication path, from existing by the carrying of core network, be the carrying of the data flow selection coupling on direct communication path.
Concrete, the data flow on direct communication path is all or part data flow on direct communication path; The mark of the data flow needing path switching is carried in described path switching request.
Further, path switching module 53, after being switched to core network communications path from direct communication path, discharges the interface-free resources of described direct communication path, and deletes the contextual information of described direct communication path.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (18)
1. a communication link path reverse method, is characterized in that, comprising:
Initiator's terminal of direct-connected communication service session receives the measurement request of the resident base station transmission of described initiator's terminal, the mark of the receiving side terminal of measurement configuration information and described direct-connected communication service session is carried in described measurement request, described initiator's terminal, according to the measurement request received, measures the signal between the receiving side terminal corresponding with the mark of described receiving side terminal;
Described initiator's terminal is carried out direct communication path according to measurement result and is switched judgement, and when judgement is switched for needs execution direct communication path, initiates the path switching process from direct communication path to core network communications path.
2. the method for claim 1, is characterized in that, the measurement request of the base station transmission that described reception initiator terminal is resident, specifically comprises:
Described initiator's terminal is being set up in the process of direct communication path with described receiving side terminal, by receiving the specific messages of the resident base station transmission of described initiator's terminal or the message for described initiator's terminal instruction direct communication path resource, receiving to measure and asking.
3. the method for claim 1, is characterized in that, is configured with path switching thresholding in described measurement configuration information;
Described receiving side terminal is when measuring the intensity of signal that described receiving side terminal sends lower than path switching thresholding, and judgement needs to perform direct communication path and switches.
4. method as claimed in claim 3, is characterized in that, in described measurement configuration information, is configured with corresponding measurement configuration information for different type services;
Described receiving side terminal is when measuring the intensity of signal that described receiving side terminal sends lower than path switching thresholding, and judgement needs to perform direct communication path and switches, and specifically comprises:
The measurement configuration information that described initiator's terminal is corresponding according to all types of business, during the path switching thresholding of the intensity of signal measuring the first business that described receiving side terminal sends lower than the first business, judgement needs the data flow of the first business to be switched to core network communications path from direct communication path.
5. the method for claim 1, is characterized in that, described initiation, specifically comprises from direct communication path to the path switching process in core network communications path:
Described initiator's terminal to described receiving side terminal transmit path switching request, and for described receiving side terminal between direct communication path on data flow determine by core network carrying; Wherein, the direct communication path between described sending side terminal is switched to core network communications path for asking described receiving side terminal by described path switching request;
After described initiator's terminal receives the path switching response that described receiving side terminal returns, by the data stream on the direct communication path between described receiving side terminal to determined by the carrying of core network; Wherein, to be described receiving side terminal sent by the carrying of core network determining for the data flow on the direct communication path between described initiator's terminal the response of described path switching afterwards.
6. method as claimed in claim 5, is characterized in that, for the data flow on direct communication path determines the carrying by core network, specifically comprise:
For the data flow on direct communication path selects the existing carrying by core network;
Or, be the existing carrying by core network of data flow amendment on direct communication path;
Or, for the data flow on direct communication path sets up the carrying by core network.
7. method as claimed in claim 6, is characterized in that, for the data flow on direct communication path determines the existing carrying by core network, specifically comprise:
According to the access point name APN of the data flow on direct communication path, service quality QoS or traffic flow template TFT, from existing by the carrying of core network, it is the carrying that data flow on direct communication path selects coupling.
8. the method as described in claim 5,6 or 7, is characterized in that, the data flow on direct communication path is all or part data flow on direct communication path; The mark of the data flow needing path switching is carried in described path switching request.
9. the method as described in any one of claim 1-7, is characterized in that, also comprises:
After described initiator's terminal and described receiving side terminal are switched to core network communications path from direct communication path, discharge the interface-free resources of described direct communication path, and delete the contextual information of described direct communication path.
10. a terminal equipment, is characterized in that, comprising:
Measure configuration module, when this terminal equipment is service conversation initiator terminal equipment, receive the measurement request that the resident base station of described initiator's terminal sends, in described measurement request, carry the mark of the receiving side terminal of measurement configuration information and described direct-connected communication service session;
Measurement module, for according to the measurement request received, measures the signal between the receiving side terminal corresponding with the mark of described receiving side terminal;
Path switching judging module, switches judgement for carrying out direct communication path according to measurement result;
Path switching module, for when described path switching judging module judgement is switched for needs execution direct communication path, initiates the path switching process from direct communication path to core network communications path.
11. terminal equipments as claimed in claim 10, it is characterized in that, described measurement configuration module specifically for, setting up in the process of direct communication path with described receiving side terminal, by receiving the specific messages of the resident base station transmission of described initiator's terminal or the message for described initiator's terminal instruction direct communication path resource, receiving to measure and asking.
12. terminal equipments as claimed in claim 10, is characterized in that, be configured with path switching thresholding in described measurement configuration information;
Described path switching judging module specifically for, when measuring the intensity of signal that described receiving side terminal sends lower than path switching thresholding, judgement needs to perform direct communication path and switches.
13. terminal equipments as claimed in claim 12, is characterized in that, in described measurement configuration information, are configured with corresponding measurement configuration information for different type services;
Described path switching module specifically for, the measurement configuration information corresponding according to all types of business, during the path switching thresholding of the intensity of signal measuring the first business that described receiving side terminal sends lower than the first business, judgement needs the data flow of the first business to be switched to core network communications path from direct communication path.
14. terminal equipments as claimed in claim 10, it is characterized in that, described path switching module specifically for, to described receiving side terminal transmit path switching request, and for described receiving side terminal between direct communication path on data flow determine by core network carrying; Wherein, the direct communication path between described sending side terminal is switched to core network communications path for asking described receiving side terminal by described path switching request;
After receiving the path switching response that described receiving side terminal returns, by the data stream on the direct communication path between described receiving side terminal to determined by the carrying of core network; Wherein, to be described receiving side terminal sent by the carrying of core network determining for the data flow on the direct communication path between described initiator's terminal the response of described path switching afterwards.
15. terminal equipments as claimed in claim 14, is characterized in that, described path switching module specifically for, be that data flow on direct communication path selects the existing carrying by core network;
Or, be the existing carrying by core network of data flow amendment on direct communication path;
Or, for the data flow on direct communication path sets up the carrying by core network.
16. terminal equipments as claimed in claim 15, it is characterized in that, described path switching module specifically for, according to the access point name APN of the data flow on direct communication path, service quality QoS or traffic flow template TFT, from existing by the carrying of core network, for the data flow on direct communication path selects the carrying of coupling.
17. terminal equipments as described in claim 14,15 or 16, it is characterized in that, the data flow on direct communication path is all or part data flow on direct communication path; The mark of the data flow needing path switching is carried in described path switching request.
18. terminal equipments as described in any one of claim 11-16, it is characterized in that, described path switching module also for, after being switched to core network communications path from direct communication path, discharge the interface-free resources of described direct communication path, and delete the contextual information of described direct communication path.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310226567.6A CN104244294B (en) | 2013-06-07 | 2013-06-07 | A kind of direct communication path reverse method and equipment |
| PCT/CN2014/079313 WO2014194849A1 (en) | 2013-06-07 | 2014-06-06 | Method and device for switching direct communication path |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310226567.6A CN104244294B (en) | 2013-06-07 | 2013-06-07 | A kind of direct communication path reverse method and equipment |
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| CN104244294A true CN104244294A (en) | 2014-12-24 |
| CN104244294B CN104244294B (en) | 2018-03-16 |
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| WO (1) | WO2014194849A1 (en) |
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| CN104244294B (en) | 2018-03-16 |
| WO2014194849A1 (en) | 2014-12-11 |
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