CN109005594A - A kind of D2D communication connecting method and device, equipment, storage medium - Google Patents
A kind of D2D communication connecting method and device, equipment, storage medium Download PDFInfo
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- CN109005594A CN109005594A CN201810942659.7A CN201810942659A CN109005594A CN 109005594 A CN109005594 A CN 109005594A CN 201810942659 A CN201810942659 A CN 201810942659A CN 109005594 A CN109005594 A CN 109005594A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention discloses a kind of D2D communication connecting method and device, equipment, storage mediums, wherein, the described method includes: first base station receives the first request message that the first user equipment is sent, first request message is established device-to-device D2D with second user equipment for request and is connect；If the first base station determines that itself currently used communication pattern is Frequency Division Duplex FDD mode, then the first base station obtains the first Time Division Duplex TDD channel resource, connect so that first user equipment establishes D2D with the second user equipment according to the first TDD channel resource；The first base station sends the first response message to first user equipment, and first response message carries the first TDD channel resource.
Description
Technical field
The present embodiments relate to wireless communication technique, relates to, but are not limited to a kind of D2D communication connecting method and device, sets
Standby, storage medium.
Background technique
Device-to-device (Device to Device, D2D) communication technology, is a kind of under the control of system, allows to use
The new technique directly communicated between family equipment (User Equipment, UE) by reuse pattern resource, that is to say,
Under D2D communication pattern, base station forwarding user data can be needed not move through, thus in certain journey between UE and UE with direct communication
The data payload of base station is alleviated on degree.
In general, the communication process of D2D communication are as follows: firstly, the first UE establishes D2D connection to base station requests；Then, base
Standing according to existing channel resource is that the first UE distributes channel resource for establishing D2D connection；Finally, the first UE is according to base station
The channel resource of distribution is established D2D with the 2nd UE and is connect.However, established after D2D connect in the first UE and the 2nd UE, the first UE or
There may be receive obstacle to the 2nd UE of person, that is, can not demodulate the data of opposite end transmission.
Summary of the invention
In view of this, the embodiment of the present invention is to solve the problems, such as present in the relevant technologies at least one and provide a kind of D2D
Communication connecting method and device, equipment, storage medium.
The technical solution of the embodiment of the present invention is achieved in that
In a first aspect, the embodiment of the present invention provides a kind of D2D communication connecting method, which is characterized in that the method
Include:
First base station receive the first user equipment send the first request message, first request message for request with
Second user equipment establishes device-to-device D2D connection；
If the first base station determines that itself currently used communication pattern is frequency division duplex (Frequency
Division Duplex, FDD) mode when, then the first base station obtains the first time division duplex (Time Division
Duplex, TDD) channel resource, so that first user equipment is according to the first TDD channel resource and the second user
Equipment establishes D2D connection；
The first base station sends the first response message to first user equipment, and first response message carries
The first TDD channel resource.
Second aspect, the embodiment of the present invention provide another kind D2D communication connecting method, which is characterized in that the method packet
It includes:
First user equipment sends the first request message to first base station, and first request message is for requesting and second
User equipment establishes device-to-device D2D connection；
First user equipment receives the first response message that the first base station is sent, and first response message is taken
With the first Time Division Duplex TDD channel resource, the first TDD channel resource is that the first base station determines that itself is currently made
Communication pattern is acquired when being Frequency Division Duplex FDD mode；
First user equipment is established D2D with the second user equipment according to the first TDD channel resource and is connect.
The third aspect, the embodiment of the present invention provide a kind of D2D communication link, and described device includes: the first reception mould
Block, first obtain module and the first sending module；Wherein,
First receiving module is configured to receive the first request message that the first user equipment is sent, and described first asks
Ask message for request establish device-to-device D2D with second user equipment and connect；
Described first obtains module, is configured to if it is determined that itself currently used communication pattern is Frequency Division Duplex FDD
When mode, then the first Time Division Duplex TDD channel resource is obtained, so that first user equipment is according to the first TDD channel
Resource is established D2D with the second user equipment and is connect；
First sending module is configured to send the first response message, first sound to first user equipment
Message is answered to carry the first TDD channel resource.
Fourth aspect, the embodiment of the present invention provide another kind D2D communication link, and described device includes: that third is sent
Module, the second receiving module, the first connection establishment module；Wherein,
The third sending module is configured to send the first request message to first base station, and first request message is used
Device-to-device D2D is established with second user equipment in request to connect；
Second receiving module is configured to receive the first response message that the first base station is sent, first sound
Message is answered to carry the first Time Division Duplex TDD channel resource, the first TDD channel resource is that the first base station determines itself
Currently used communication pattern is acquired when being Frequency Division Duplex FDD mode；
First connection establishment module is configured to according to the first TDD channel resource and the second user equipment
Establish D2D connection.
5th aspect, the embodiment of the present invention provide a kind of D2D communication equipment, including first memory and first processor,
The first memory is stored with the computer program that can be run on first processor, and the first processor executes the journey
The step in D2D communication connecting method described in first aspect is realized when sequence.
6th aspect, the embodiment of the present invention provide another kind D2D communication equipment, including second memory and second processing
Device, the second memory are stored with the computer program that can be run in second processor, and the second processor executes institute
The step in D2D communication connecting method described in second aspect is realized when stating program.
7th aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program,
The step in D2D communication connecting method described in first aspect is realized when the computer program is executed by processor.
Eighth aspect, the embodiment of the present invention provide another computer readable storage medium, are stored thereon with computer journey
Sequence realizes the step in D2D communication connecting method described in second aspect when the computer program is executed by processor.
In the embodiment of the present invention, if the first base station determines that itself currently used communication pattern is frequency division duplex
When fdd mode, then the first base station obtains the first Time Division Duplex TDD channel resource so that first user equipment according to
As soon as the TDD channel resource is established D2D with the second user equipment and connect, set in this way, solving first user
The standby communication estrangement between the second user equipment, that is, first user equipment and the equal energy of second user equipment
The data that enough correct demodulation opposite ends are sent.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram of the network architecture of the embodiment of the present invention；
Fig. 2A is a kind of implementation process schematic diagram of D2D communication connecting method of the embodiment of the present invention；
Fig. 2 B is a kind of implementation process schematic diagram of the first TDD channel resource of acquisition of the embodiment of the present invention；
Fig. 2 C is a kind of implementation process schematic diagram of the 2nd TDD channel resource of acquisition of the embodiment of the present invention；
Fig. 2 D is whether a kind of determination first user equipment of the embodiment of the present invention meets preset D2D condition of contact
Implementation process schematic diagram；
Fig. 3 A is the implementation process schematic diagram of another D2D communication connecting method of the embodiment of the present invention；
Fig. 3 B is the implementation process schematic diagram of another D2D communication connecting method of the embodiment of the present invention；
Fig. 3 C is the implementation process schematic diagram that a kind of update D2D of the embodiment of the present invention is communicated to connect；
Fig. 4 is the implementation process schematic diagram of another D2D communication connecting method of the embodiment of the present invention；
Fig. 5 is the implementation process schematic diagram of another D2D communication connecting method of the embodiment of the present invention；
Fig. 6 is a kind of implementation process schematic diagram of D2D communication connecting method of the embodiment of the present invention；
Fig. 7 A is a kind of composed structure schematic diagram of D2D communication link of the embodiment of the present invention；
Fig. 7 B is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 7 C is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 7 D is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 7 E is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 8 A is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 8 B is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 8 C is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention；
Fig. 9 is a kind of hardware entities schematic diagram of D2D communication equipment of the embodiment of the present invention；
Figure 10 is the hardware entities schematic diagram of another D2D communication equipment of the embodiment of the present invention；
Figure 11 is a kind of composed structure schematic diagram of D2D communication system of the embodiment of the present invention.
Specific embodiment
The technical solution of the present invention is further elaborated with reference to the accompanying drawings and examples.
The present embodiment first provides a kind of network architecture for realizing D2D communication, and Fig. 1 is the group of the network architecture of the embodiment of the present invention
At structural schematic diagram, as shown in Figure 1, the network architecture includes first base station 11, the first user equipment 12 and second user equipment
13；Wherein, interacted between the first user equipment 12 and first base station 11 by the first link 14, the first user equipment 12 with
It is interacted between second user equipment 13 by the second link 15.In general, first user equipment 12 and described
Two user equipmenies 13 in the process of implementation can be various types of terminal devices with D2D communication capacity, such as mobile phone,
Tablet computer, personal digital assistant, navigator, digital telephone, visual telephone, sensing equipment etc..
The present embodiment proposes a kind of D2D communication connecting method, and this method is applied to D2D communication equipment, for example, the D2D
Communication equipment is the first base station 11, and the function that this method is realized can call journey by the processor in first base station 11
Sequence code realizes that certain program code can be stored in computer storage medium, it is seen then that the D2D communication equipment at least wraps
Include pocessor and storage media.
Fig. 2A is a kind of implementation process schematic diagram of D2D communication connecting method of the embodiment of the present invention, as shown in Figure 2 A, should
Method includes:
S201, first base station receive the first request message that the first user equipment is sent, and first request message is used for
Request is established device-to-device D2D with second user equipment and is connect；
If S202, the first base station determine that itself currently used communication pattern is Frequency Division Duplex FDD mode,
Then the first base station obtains the first Time Division Duplex TDD channel resource, so that first user equipment is according to the first TDD
Channel resource is established D2D with the second user equipment and is connect；
S203, the first base station send the first response message, first response message to first user equipment
Carry the first TDD channel resource.
It is to be appreciated that theoretically speaking, the channel resource of D2D communication, with first user equipment and described first
Base station when establishing connection used channel resource be it is identical, when the first base station receives first request message
When, the first base station can be that first user equipment distributes channel resource according to currently existing channel resource, for example, institute
When the communication pattern for stating first base station support is fdd mode, the first base station is FDD for first user equipment distribution
Channel resource；When the communication pattern that the first base station is supported is tdd mode, the first base station is first user equipment
Distribution is TDD channel resource.However, in practical applications, when first user equipment and the second user equipment are logical
Cross FDD channel resource establish D2D communication when, for example, first user equipment is by the first frequency range, (i.e. described first user is set
The standby uplink band communicated with the first base station) to the second user equipment data are sent, at this point, due to described the
It has not been used to demodulate the module of first frequency range in two user equipmenies, therefore, the second user equipment can not be solved correctly
The data for adjusting first user equipment to send by first frequency range, so as to cause first user equipment and described
Communication estrangement is generated between two user equipmenies, i.e., the described second user equipment can only think that first user equipment sends data,
But the data that first user equipment is sent cannot accurately be received.Based on this, in embodiments of the present invention, if described first
When base station determines that itself currently used communication pattern is Frequency Division Duplex FDD mode, then when the first base station obtains first
Divide duplex TDD channel resource, so that first user equipment is set according to the first TDD channel resource with the second user
It is standby to establish D2D connection, in this way, just solve the communication estrangement between first user equipment and the second user equipment,
That is, first user equipment and the second user equipment can correctly demodulate the data of opposite end transmission.
In other embodiments, in step S202, the first base station obtains the first TDD channel resource, such as
Shown in Fig. 2 B, it may comprise steps of:
S2021, the first base station send the second request message to equipment of the core network, and second request message is for asking
Seeking the equipment of the core network is that first user equipment distributes the first TDD channel resource；
S2022, the first base station receive the second response message that the equipment of the core network is sent, and second response disappears
Breath carries the first TDD channel resource；
S2023, the first base station obtain the first TDD channel resource from second response message.
In other embodiments, as shown in Figure 2 C, the method can also include the following steps:
If S204, the first base station determine that itself currently used communication pattern is tdd mode, described
One base station is that first user equipment distributes the 2nd TDD channel resource, so that first user equipment is according to described second
TDD channel resource is established D2D with the second user equipment and is connect；
S205, the first base station send third response message, the third response message to first user equipment
Carry the 2nd TDD channel resource.
In other embodiments, after step S201, i.e., the first user equipment hair is received in the first base station
After the first request message sent, the method also includes:
If the first base station determines first user equipment and meets preset D2D condition of contact, described first
Base station determines itself currently used communication pattern；
If the first base station determines first user equipment and is unsatisfactory for preset D2D condition of contact, described
One base station disconnects the connection between first user equipment.
In other embodiments, as shown in Figure 2 D, the method can also include the following steps:
S206, the first base station obtain the current location of first user equipment and working as the second user equipment
Front position；
For example, the first base station sends position to first user equipment and the second user equipment respectively
Request message；First user equipment and the second user equipment after receiving the location request message, respectively to
The first base station reports respective current location.For another example, the first base station determines described first using geometry location algorithm
The current location of the current location of user equipment and the second user equipment.
S207, the first base station are according to the current location of first user equipment and working as the second user equipment
Front position determines the distance between first user equipment and the second user equipment；
S208, judge whether the distance is greater than preset distance threshold；If so, thening follow the steps S209；Otherwise, it holds
Row step S210；
S209, the first base station disconnect the connection between first user equipment；
S210, the first base station determine that first user equipment meets preset D2D condition of contact.
It is to be appreciated that the D2D communication technology is a kind of communication technology of the device-to-device of short distance, so, if into
The distance between two equipment of row D2D communication is more than preset distance threshold, then it is possible that D2D connecting link is unstable
The problem of, or even there is the case where D2D connection failure.Therefore, the first base station is receiving the first user equipment hair
After the first request message sent, need to state whether the distance between the first user equipment and the second user equipment are greater than in advance
If distance threshold.
The embodiment of the present invention provides another kind D2D communication connecting method, and Fig. 3 A is that another D2D of the embodiment of the present invention is logical
Believe the implementation process schematic diagram of connection method, as shown in Figure 3A, the method may include following steps:
S301, the first user equipment send the first request message to first base station, and first request message is for requesting
Device-to-device D2D is established with second user equipment to connect；
S302, first user equipment receive the first response message that the first base station is sent, first response
Message carries the first Time Division Duplex TDD channel resource, and the first TDD channel resource is that the first base station determines that itself works as
Communication pattern used in preceding is acquired when being Frequency Division Duplex FDD mode；
S303, first user equipment establish D2D according to the first TDD channel resource and the second user equipment
Connection.
In embodiments of the present invention, determine that itself currently used communication pattern is frequency division duplex in the first base station
When fdd mode, first user equipment still be able to according to the first base station obtain the first TDD channel resource with it is described
Second user equipment establishes D2D connection, so as to avoid when the first base station is FDD communication pattern, first user
Equipment and the second user equipment generate communication estrangement.
In other embodiments, as shown in Figure 3B, the method can also include the following steps:
S304, first user equipment receive the third response message that the first base station is sent, the third response
Message carries the 2nd TDD channel resource, and the 2nd TDD channel resource is that the first base station determines that itself is currently used
Communication pattern distributed by first user equipment when being tdd mode；
S305, first user equipment establish D2D according to the 2nd TDD channel resource and the second user equipment
Connection.
In other embodiments, as shown in Figure 3 C, the method can also include the following steps:
If S306, first user equipment determine that current service cell switches to the second base station from the first base station
When, then first user equipment sends third request message to second base station, and the third request message is for requesting
Update TDD channel resource used in current D2D connection；
S307, first user equipment receive the 4th response message, and the 4th response message carries described second
The 3rd TDD channel resource that base station obtains, the 3rd TDD channel resource is that second base station is determining first user
TDD channel resource used in the current D2D connection of equipment is obtained when identical as TDD channel resource used in other D2D connections
It takes；
For example, TDD channel resource used in other D2D connections, is used with first user equipment and described second
TDD channel resource used in the current D2D connection of the other users equipment of family proximity of devices.
S308, first user equipment are built with the second user equipment again according to the 3rd TDD channel resource
Vertical D2D connection.
In this way, first user equipment is built with the second user equipment again according to the 3rd TDD channel resource
Vertical D2D connection, can be to avoid the other users equipment of interference and first user equipment and the second user proximity of devices
D2D communication quality.
The embodiment of the present invention provides another D2D communication connecting method, and Fig. 4 is that another D2D of the embodiment of the present invention is logical
The implementation process schematic diagram for believing connection method, as shown in figure 4, the method may include following steps:
S401, first user equipment send the first request message, first request message to the first base station
D2D is established with second user equipment for request to connect；
It is to be appreciated that exhaling equipment based on the first user equipment, second user equipment is called device.
S402, the first base station receive first request message, subsequently into step S403；
S403, the first base station obtain the current location of first user equipment and working as the second user equipment
Front position；
S404, the first base station are according to the current location of first user equipment and working as the second user equipment
Front position determines the distance between first user equipment and the second user equipment；
S405, the first base station judge whether the distance is greater than preset distance threshold；If so, thening follow the steps
S406；Otherwise, step S407 is executed；
It is to be appreciated that D2D connection is to realize therefore short-range connection is needed exist for according to the Distance Judgment institute
Whether state can establish D2D connection between the first user equipment and the second user equipment.
S406, the first base station disconnect the connection between first user equipment；
S407, the first base station determine itself currently used communication pattern；If the communication pattern is FDD mould
Formula thens follow the steps S408；If the communication pattern is tdd mode, S414 is thened follow the steps；
S408, the first base station send the second request message to equipment of the core network, and second request message is for asking
Seeking the equipment of the core network is that first user equipment distributes the first TDD channel resource；
S409, the equipment of the core network receive second request message；
S410, the equipment of the core network send the second response message to the first base station, and second response message is taken
With the first TDD channel resource；
S411, the first base station receive second response message, and by the first TDD in second response message
Channel resource, which is encapsulated in the first response message, is sent to first user equipment；
S412, first user equipment receive first response message；
S413, first user equipment the first TDD channel resource according to entrained by first response message, with institute
It states second user equipment and establishes D2D connection；
S414, the first base station are that first user equipment distributes the 2nd TDD channel resource, so that described first uses
Family equipment is established D2D with the second user equipment according to the 2nd TDD channel resource and is connect；
S415, the first base station send third response message, the third response message to first user equipment
Carry the 2nd TDD channel resource；
S416, first user equipment receive the third response message；
S417, first user equipment the 2nd TDD channel resource according to entrained by the third response message,
D2D is established with the second user equipment to connect.
D2D communication is exactly a kind of communication between equipment and equipment as its name suggests.Third generation cooperative partner program (the
3rd Generation Partnership Project, 3GPP) long term evolution, the 5th especially following generation (the 5th
Generation, 5G) mobile communication technology will promote to one kind under office, family, public hot spot or outdoor environment
Local IP service is to access.Locality connection or the most brief use-case of local IP access are both by closely (ten meters
Even hundred meters) mode that is directly communicated between equipment, that is, the D2D communication described in us.Institute in the embodiment of the present invention
The user equipment of finger includes various communication equipments, and the communication process of D2D communication is general are as follows: (i.e. described first uses user equipment A
Family equipment) connection is first established with base station (the i.e. described first base station), base station distribution channel resource gives user equipment A, then user
Equipment A establishes D2D with user equipment B using this channel resource and connect, to realize the communication between user equipment B.It is right
For FDD communication between user equipment A and user equipment B, transmitting link belongs to the communication of different frequency with receives link,
And the TDD communication between user equipment A and user equipment B is then to emit link and receives link with a kind of communication mode of frequency.
The embodiment of the present invention provides another D2D method of communication connection, and Fig. 5 is another D2D of the embodiment of the present invention
The implementation process schematic diagram of communication connecting method, as shown in figure 5, the method may include following steps:
After S501, base station and user equipment A establish connection, D2D channel resource is distributed to user equipment A in base station；
Here, the user equipment A that connection is established with base station is known as master and exhales equipment, is sought to establish the user that D2D is communicated and set
Standby B is known as called device.
The communication channel that S502, user equipment A are issued by base station is established D2D with user equipment B and is connect；
S503, user equipment A and user equipment B are established after D2D communicates, it is main exhale equipment initiate to disconnect to base station or
Person enters the request of intermittent control channel；
After S504, user equipment A are communicated with user equipment B disconnection D2D, user equipment A is actively re-established with base station
Connection or the request for initiating release D2D channel resource to base station by intermittent control channel.
For above-mentioned method shown in fig. 5, there is a kind of communication estrangement between user equipment A and user equipment B,
When user equipment A is communicated in the fdd mode with user equipment B, user equipment A and user equipment B itself do not have base station
Frequency range is received, this also has led to the needs of communication between the two and defines between FDD and TDD.For user equipment A and user
When equipment B is communicated in tdd mode because TDD communication be a kind of identical frequency process in itself, then can avoid communication estrangement this
One problem.
Based on this, the embodiment of the present invention provides a kind of method of D2D communication connection, and core ideas is: assigning and using in base station
When communication pattern between family equipment A and user equipment B is that TDD is communicated, then directly according to using distribution TDD channel resource into
Row communication, if base station assigns the communication pattern between user equipment A and user equipment B when being that FDD is communicated, base station need to
Equipment of the core network application TDD channel resource is so that the communication pattern between user equipment A and user equipment B is still that TDD is communicated.
Fig. 6 is a kind of implementation process schematic diagram of D2D communication connecting method of the embodiment of the present invention, as shown in fig. 6, the method can be with
Include the following steps:
S601, user equipment A and first base station establish connection；
S602, first base station determine whether to enter D2D state；If not, thening follow the steps S603；If it is, executing
Step S604；
S603, first base station disconnect the connection between user equipment A；
S604, first base station determine itself current currently used communication pattern；If the communication pattern is FDD mould
Formula thens follow the steps S605；If the communication pattern is tdd mode, S606 is thened follow the steps；
S605, first base station request the first TDD channel resource to equipment of the core network, and the first TDD channel resource is sent
User equipment A is given, is connected so that user equipment A establishes D2D with user equipment B according to the first TDD channel resource, subsequently into step
Rapid S607；
S606, first base station are that user equipment A distributes the 2nd TDD channel resource, and the 2nd TDD channel resource is sent to
User equipment A is connected so that user equipment A establishes D2D with user equipment B according to the 2nd TDD channel resource, subsequently into step
S607；
S607, user equipment A and first base station keep connecting, if user equipment A determines current service cell from first
When base station switches to the second base station, then user equipment A redefines TDD used in current D2D connection to the second base station requests
Channel resource.
Based on embodiment above-mentioned, the embodiment of the present invention provides a kind of D2D communication link, which includes included
Each module and each module included by each unit, can be realized by the processor in computer equipment；It certainly can also
It is realized by specific logic circuit；In the process of implementation, processor can be central processing unit (CPU), microprocessor
(MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 7 A is a kind of composed structure schematic diagram of D2D communication link of the embodiment of the present invention, as shown in Figure 7 A, institute
Stating device 70 includes that the first receiving module 71, first obtains module 72 and the first sending module 73；Wherein,
First receiving module 71, be configured to receive the first user equipment send the first request message, described first
Request message is established device-to-device D2D with second user equipment for request and is connect；
Described first obtains module 72, is configured to if it is determined that the currently used communication pattern of described device 70 itself is
When Frequency Division Duplex FDD mode, then the first Time Division Duplex TDD channel resource is obtained, so that first user equipment is according to
First TDD channel resource is established D2D with the second user equipment and is connect；
First sending module 73 is configured to send the first response message to first user equipment, described first
Response message carries the first TDD channel resource.
In other embodiments, as shown in Figure 7 B, the first acquisition module 72 includes: the first transmission unit 721, first
Receiving unit 722, first acquisition unit 723；Wherein,
First transmission unit 721 is configured to send the second request message to equipment of the core network, and second request disappears
Breath is that first user equipment distributes the first TDD channel resource for requesting the equipment of the core network；
First receiving unit 722, is configured to receive the second response message that the equipment of the core network is sent, and described the
Two response messages carry the first TDD channel resource；
The first acquisition unit 723 is configured to obtain the first TDD channel money from second response message
Source.
In other embodiments, as seen in figure 7 c, described device 70 further includes resource distribution module 74, the second sending module
75；Wherein,
The resource distribution module 74 is configured to if it is determined that the currently used communication pattern of described device 70 itself is
When tdd mode, then the 2nd TDD channel resource is distributed for first user equipment, so that first user equipment is according to institute
It states the 2nd TDD channel resource and establishes D2D with the second user equipment and connect；
Second sending module 75 is configured to send third response message, the third to first user equipment
Response message carries the 2nd TDD channel resource.
In other embodiments, as illustrated in fig. 7d, described device 70 further includes the first determining module 76, and described first determines
Module 76 is configured to if it is determined that first user equipment meets preset D2D condition of contact, it is determined that described device 70 is certainly
The currently used communication pattern of body.
In other embodiments, as seen in figure 7e, described device 70 further includes the second acquisition module 77, the second determining module
78, third determining module 79；Wherein,
Described second obtains module 77, is configured to obtain the current location of first user equipment and the second user
The current location of equipment；
Second determining module 78 is configured to current location and the second user according to first user equipment
The current location of equipment determines the distance between first user equipment and the second user equipment；
The third determining module 79, if being configured to the distance less than or equal to preset distance threshold, it is determined that institute
It states the first user equipment and meets preset D2D condition of contact.
Based on embodiment above-mentioned, the embodiment of the present invention provides another kind D2D communication link, which is wrapped
Each unit included by each module and each module included, can be realized by the processor in computer equipment；Certainly
It can be realized by specific logic circuit；In the process of implementation, processor can be central processing unit (CPU), microprocessor
(MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 8 A is the composed structure schematic diagram of another D2D communication link of the embodiment of the present invention, as shown in Figure 8 A,
Described device 80 includes third sending module 81, the second receiving module 82, the first connection establishment module 83；Wherein,
The third sending module 81 is configured to send the first request message, first request message to first base station
Device-to-device D2D is established with second user equipment for request to connect；
Second receiving module 82, is configured to receive the first response message that the first base station is sent, and described first
Response message carries the first Time Division Duplex TDD channel resource, and the first TDD channel resource is that the first base station determines certainly
Body currently used communication pattern is acquired when being Frequency Division Duplex FDD mode；
First connection establishment module 83 is configured to be set according to the first TDD channel resource with the second user
It is standby to establish D2D connection.
In other embodiments, as shown in Figure 8 B, described device 80 further include: the connection of third receiving module 84, second is built
Formwork erection block 85；Wherein,
The third receiving module 84 is configured to receive the third response message that the first base station is sent, the third
Response message carries the 2nd TDD channel resource, and the 2nd TDD channel resource is that the first base station determines itself current institute
It is distributed when the communication pattern used is tdd mode by first user equipment；
Second connection establishment module 85 is configured to be set according to the 2nd TDD channel resource with the second user
It is standby to establish D2D connection.
In other embodiments, as shown in Figure 8 C, described device 80 further include: the 4th sending module the 86, the 4th receives mould
Block 87, third connection establishment module 88；Wherein,
4th sending module 86 is configured to if it is determined that current service cell switches to second from the first base station
When base station, then third request message is sent to second base station, the third request message updates current D2D company for requesting
TDD channel resource used in connecing；
4th receiving module 87 is configured to receive the 4th response message, and the 4th response message carries described
The 3rd TDD channel resource that second base station obtains, the 3rd TDD channel resource is that second base station is determining described device
TDD channel resource used in 80 current D2D connections is acquired when identical as TDD channel resource used in other D2D connections
's；
The third connection establishment module 88 is configured to be used with described second again according to the 3rd TDD channel resource
Family equipment establishes D2D connection.
The description of apparatus above embodiment, be with the description of above method embodiment it is similar, have same embodiment of the method
Similar beneficial effect.For undisclosed technical detail in apparatus of the present invention embodiment, embodiment of the present invention method is please referred to
Description and understand.
It should be noted that in the embodiment of the present invention, if realizing above-mentioned D2D communication in the form of software function module
Connection method, and when sold or used as an independent product, it also can store in a computer readable storage medium.
Based on this understanding, the part that the technical solution of the embodiment of the present invention substantially in other words contributes to the relevant technologies can be with
It is expressed in the form of software products, which is stored in a storage medium, including some instructions are used
So that a computer equipment (can be personal computer, server or network equipment etc.) executes each reality of the present invention
Apply all or part of the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read
Only Memory, ROM), the various media that can store program code such as magnetic or disk.In this way, the embodiment of the present invention is not
Any specific hardware and software is limited to combine.
Accordingly, the embodiment of the present invention provides a kind of D2D communication equipment, including first memory and first processor, institute
It states first memory and is stored with the computer program that can be run on first processor, the first processor executes described program
Shi Shixian is above-mentioned and Fig. 2A to Fig. 2 D corresponding to step in the D2D communication connecting method that provides in any embodiment.
It should be noted that Fig. 9 is a kind of hardware entities schematic diagram of D2D communication equipment described in the embodiment of the present invention, such as
Shown in Fig. 9, the hardware entities of the D2D communication equipment 900 include: that first processor 901, the first communication interface 902 and first are deposited
Reservoir 903, wherein
The overall operation of the usually control D2D communication equipment 900 of first processor 901.
First communication interface 902 can make computer equipment pass through network and other terminals or server communication.
First memory 903 is configured to store the instruction and application that can be performed by first processor 901, can also cache to
In first processor 901 and D2D communication equipment 900 each module it is to be processed or processed data (for example, image data,
Audio data, voice communication data and video communication data), flash memory (FLASH) or random access storage device can be passed through
(Random Access Memory, RAM) is realized.
It should also be noted that, in practical applications, the D2D communication equipment 900 is usually that base station etc. has distribution letter
The relay node of road resource function.
Accordingly, the embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, should
It realizes and above-mentioned is communicated with D2D that is being provided in any embodiment corresponding to Fig. 2A to Fig. 2 D when computer program is executed by processor
Step in connection method.
In addition, the embodiment of the present invention provides another kind D2D communication equipment, including second memory and second processor, institute
It states second memory and is stored with the computer program that can be run in second processor, the second processor executes described program
The above-mentioned step with the D2D communication connecting method provided in any embodiment corresponding to Fig. 3 A to Fig. 3 C of Shi Shixian.
It should be noted that Figure 10 is the hardware entities signal of another D2D communication equipment described in the embodiment of the present invention
Figure, as shown in Figure 10, the hardware entities of the D2D communication equipment 100 include: second processor 101,102 and of the second communication interface
Second memory 103, wherein
The overall operation of the usually control D2D communication equipment 100 of second processor 101.
Second communication interface 102 can make D2D communication equipment 100 pass through network and other terminals or server communication.
Second memory 103 is configured to store the instruction and application that can be performed by second processor 101, can also cache to
In second processor 101 and D2D communication equipment 100 each module it is to be processed or processed data (for example, image data,
Audio data, voice communication data and video communication data), flash memory (FLASH) or random access storage device can be passed through
(Random Access Memory, RAM) is realized.
It should also be noted that, in practical applications, the D2D communication equipment 100 is usually user equipment, i.e., it is mobile whole
End, for example, mobile phone, tablet computer, personal digital assistant, navigator, digital telephone, visual telephone, sensing equipment etc..
In addition, the embodiment of the present invention provides another computer readable storage medium, it is stored thereon with computer program, it should
It realizes and above-mentioned is communicated with D2D that is being provided in any embodiment corresponding to Fig. 3 A to Fig. 3 C when computer program is executed by processor
Step in connection method.
The embodiment of the present invention provides a kind of D2D communication system, and Figure 11 is a kind of D2D communication system of the embodiment of the present invention
Composed structure schematic diagram, as shown in figure 11, the system 110 include: D2D communication equipment 900 and D2D communication equipment 100.
It need to be noted that: the description of medium stored above and apparatus embodiments, with retouching for above method embodiment
It is similar for stating, and has with embodiment of the method similar beneficial effect.For in storage medium of the present invention and apparatus embodiments not
The technical detail of disclosure please refers to the description of embodiment of the present invention method and understands.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.It should be understood that in various implementations of the invention
In example, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, and the execution sequence of each process should be with its function
It can determine that the implementation process of the embodiments of the invention shall not be constituted with any limitation with internal logic.The embodiments of the present invention
Serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as: multiple units or components can combine, or
It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion
Mutual coupling or direct-coupling or communication connection is divided to can be through some interfaces, the INDIRECT COUPLING of equipment or unit
Or communication connection, it can be electrical, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member, which can be or may not be, to be physically separated, aobvious as unit
The component shown can be or may not be physical unit；Both it can be located in one place, and may be distributed over multiple network lists
In member；Some or all of units can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated in one processing unit, it can also
To be each unit individually as a unit, can also be integrated in one unit with two or more units；It is above-mentioned
Integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can store in computer-readable storage medium, which exists
When execution, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: movable storage device, read-only deposits
The various media that can store program code such as reservoir (Read Only Memory, ROM), magnetic or disk.
If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of software function module and as independent product
When selling or using, it also can store in a computer readable storage medium.Based on this understanding, the present invention is implemented
The technical solution of example substantially in other words can be embodied in the form of software products the part that the relevant technologies contribute,
The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with
It is personal computer, server or network equipment etc.) execute all or part of each embodiment the method for the present invention.
And storage medium above-mentioned includes: various Jie that can store program code such as movable storage device, ROM, magnetic or disk
Matter.
The above, only embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of D2D communication connecting method, which is characterized in that the described method includes:
First base station receives the first request message that the first user equipment is sent, and first request message is for requesting and second
User equipment establishes device-to-device D2D connection；
If the first base station determines that itself currently used communication pattern is Frequency Division Duplex FDD mode, described
One base station obtains the first Time Division Duplex TDD channel resource, so that first user equipment is according to the first TDD channel resource
D2D is established with the second user equipment to connect；
The first base station sends the first response message to first user equipment, and first response message carries described
First TDD channel resource.
2. the method according to claim 1, wherein the first base station obtains the first TDD channel resource,
Include:
The first base station sends the second request message to equipment of the core network, and second request message is for requesting the core
Net equipment is that first user equipment distributes the first TDD channel resource；
The first base station receives the second response message that the equipment of the core network is sent, and second response message carries
State the first TDD channel resource；
The first base station obtains the first TDD channel resource from second response message.
3. the method according to claim 1, wherein the method also includes:
If the first base station determines that itself currently used communication pattern is tdd mode, the first base station is
First user equipment distributes the 2nd TDD channel resource, so that first user equipment is provided according to the 2nd TDD channel
Source is established D2D with the second user equipment and is connect；
The first base station sends third response message to first user equipment, and the third response message carries described
2nd TDD channel resource.
4. method according to any one of claims 1 to 3, which is characterized in that receive described first in the first base station
After the first request message that user equipment is sent, the method also includes:
If the first base station determines that first user equipment meets preset D2D condition of contact, the first base station
Determine itself currently used communication pattern.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
The first base station obtains the current location of first user equipment and the current location of the second user equipment；
The first base station is according to the current location of first user equipment and the current location of the second user equipment, really
Fixed the distance between first user equipment and the second user equipment；
If the distance is less than or equal to preset distance threshold, the first base station determines that first user equipment meets
Preset D2D condition of contact.
6. a kind of D2D communication connecting method, which is characterized in that the described method includes:
First user equipment sends the first request message to first base station, and first request message is for request and second user
Equipment establishes device-to-device D2D connection；
First user equipment receives the first response message that the first base station is sent, and first response message carries
First Time Division Duplex TDD channel resource, the first TDD channel resource are that the first base station determines that itself is currently used
Communication pattern is acquired when being Frequency Division Duplex FDD mode；
First user equipment is established D2D with the second user equipment according to the first TDD channel resource and is connect.
7. according to the method described in claim 6, it is characterized in that, the method also includes:
First user equipment receives the third response message that the first base station is sent, and the third response message carries
2nd TDD channel resource, the 2nd TDD channel resource are that the first base station determines itself currently used communication pattern
First user equipment is distributed when being tdd mode；
First user equipment is established D2D with the second user equipment according to the 2nd TDD channel resource and is connect.
8. method according to claim 6 or 7, which is characterized in that the method also includes:
It is described if first user equipment determines that current service cell switches to the second base station from the first base station
First user equipment sends third request message to second base station, and the third request message is current for requesting to update
TDD channel resource used in D2D connection；
First user equipment receives the 4th response message, and the 4th response message carries what second base station obtained
3rd TDD channel resource, the 3rd TDD channel resource are that second base station is determining that first user equipment is current
TDD channel resource used in D2D connection is acquired when identical as TDD channel resource used in other D2D connections；
First user equipment is established D2D with the second user equipment again according to the 3rd TDD channel resource and is connect.
9. a kind of D2D communication link, which is characterized in that described device include: the first receiving module, first obtain module and
First sending module；Wherein,
First receiving module is configured to receive the first request message that the first user equipment is sent, and first request disappears
Breath is established device-to-device D2D with second user equipment for request and is connect；
Described first obtains module, is configured to if it is determined that itself currently used communication pattern is Frequency Division Duplex FDD mode
When, then the first Time Division Duplex TDD channel resource is obtained, so that first user equipment is according to the first TDD channel resource
D2D is established with the second user equipment to connect；
First sending module is configured to send the first response message to first user equipment, and first response disappears
Breath carries the first TDD channel resource.
10. a kind of D2D communication link, which is characterized in that described device include: third sending module, the second receiving module,
First connection establishment module；Wherein,
The third sending module is configured to send the first request message to first base station, and first request message is for asking
It asks and establishes device-to-device D2D with second user equipment and connect；
Second receiving module is configured to receive the first response message that the first base station is sent, and first response disappears
Breath carries the first Time Division Duplex TDD channel resource, and the first TDD channel resource is that the first base station determines that itself is current
Used communication pattern is acquired when being Frequency Division Duplex FDD mode；
First connection establishment module is configured to be established according to the first TDD channel resource and the second user equipment
D2D connection.
11. a kind of D2D communication equipment, including first memory and first processor, the first memory is stored with can be
The computer program run on one processor, which is characterized in that realize that right is wanted when the first processor executes described program
Seek the step in any one of 1 to the 5 device-to-device D2D communication connecting method.
12. a kind of D2D communication equipment, including second memory and second processor, the second memory is stored with can be
The computer program run on two processors, which is characterized in that realize that right is wanted when the second processor executes described program
Seek the step in any one of 6 to the 8 device-to-device D2D communication connecting methods.
13. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step in any one of claim 1 to 5 device-to-device D2D communication connecting method is realized when processor executes.
14. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step in any one of claim 6 to 8 device-to-device D2D communication connecting method is realized when processor executes.
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