CN104796852B - Method for discovering equipment, device and terminal for the direct-connected communication of terminal - Google Patents
Method for discovering equipment, device and terminal for the direct-connected communication of terminal Download PDFInfo
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- CN104796852B CN104796852B CN201510206188.XA CN201510206188A CN104796852B CN 104796852 B CN104796852 B CN 104796852B CN 201510206188 A CN201510206188 A CN 201510206188A CN 104796852 B CN104796852 B CN 104796852B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of method for discovering equipment, device and terminal for the direct-connected communication of terminal, wherein, method for discovering equipment for the direct-connected communication of terminal, suitable for terminal, it include: the terminal and at least one D2D terminal composition D2D endpoint groups with predetermined location relationship, and determining whether can be as the proxy terminal of the D2D endpoint groups；When being determined to as the proxy terminal, the terminal sends the discovery message for indicating the D2D endpoint groups, so that other D2D terminals according to the discovery message while can find all terminals in the D2D endpoint groups when receiving the discovery message.Technical solution of the present invention effectively reduces the running time-frequency resource occupied in D2D discovery procedure, and improves the discovery efficiency of D2D.
Description
Technical field
The present invention relates to fields of communication technology, in particular to a kind of equipment discovery side for the direct-connected communication of terminal
Method, a kind of equipment for the direct-connected communication of terminal find device and a kind of terminal.
Background technique
With the software and hardware technology of mobile terminal and the development of wireless communication technique, the direct-connected communication technology (Device of terminal
To Device, i.e. D2D are the technologies for the terminal direct communication that 3GPP is introduced, allow user data transmission without cellular network
Infrastructure) be increasingly becoming an important technical point.D2D technology mainly includes D2D discovery (i.e. discovery phase)
With D2D communication (i.e. stage of communication), D2D discovery and D2D communication are independent business,
D2D communication allows two UE directly directly to carry out data by specific channel (sidelink channel)
It sends and transmits, without being subjected to the transmission of base station.
D2D be the discovery that 3GPP introduce one terminal of support determine another terminal whether adjacent domain process.Its
Defined in D2D discovery mechanism, be mainly based upon each UE oneself send D2D discovery message.This scheme makes in terminal
Density is larger, and participates under the more scene of terminal of D2D discovery, it may appear that D2D has found the more scene of message.Such case
Under will lead to no matter using which kind of D2D discovery resource allocation mode (i.e. the allocation model in specific resource or shared resource pond),
All it is difficult to meet the needs of D2D discovery, particularly in view of the bigger scene of D2D terminal density in the following 5G network.
Therefore, how to reduce the running time-frequency resource occupied in D2D discovery procedure, and improve D2D discovery efficiency at
For technical problem urgently to be resolved.
Summary of the invention
The present invention is based at least one above-mentioned technical problem, proposes a kind of new setting for the direct-connected communication of terminal
Preparation shows scheme, effectively reduces the running time-frequency resource occupied in D2D discovery procedure, and improves the discovery efficiency of D2D.
In view of this, the invention proposes a kind of method for discovering equipment for the direct-connected communication of terminal, the equipment discovery
Method is suitable for terminal, comprising: the terminal forms D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and determining whether can be as the proxy terminal of the D2D endpoint groups；When being determined to as the proxy terminal,
The terminal sends the discovery message for indicating the D2D endpoint groups, so that other D2D terminals are receiving the discovery message
When can find simultaneously all terminals in the D2D endpoint groups according to the discovery message.
In the technical scheme, terminal is by forming D2D terminal at least one D2D terminal with predetermined location relationship
Group, and when being determined to the proxy terminal as D2D endpoint groups, the discovery message for indicating D2D endpoint groups is sent, with
Other D2D terminals are enable to find all terminals in D2D endpoint groups simultaneously when receiving discovery message, so that needing
When carrying out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal in D2D endpoint groups,
It avoids all terminals in D2D endpoint groups all to send discovery message and occupy more running time-frequency resource, also improve simultaneously
The discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that determine whether can be as the proxy terminal of endpoint groups the step of
Specifically include: the terminal sends the request as the proxy terminal at least one described D2D terminal；It is described receiving
When the agreement instruction of at least one D2D terminal feedback, it is determined to as the proxy terminal.Specifically, if D2D terminal is wished
As D2D endpoint groups proxy terminal, then other terminals into D2D endpoint groups are needed to send request, and in D2D terminal
It, can be as the proxy terminal of D2D endpoint groups when other terminals in group are agreed to.
In the above-mentioned technical solutions, it is preferable that after the agreement instruction for receiving at least one D2D terminal feedback,
Further include: it receives the D2D that each D2D terminal is sent at least one described D2D terminal and finds mark；And storage is described each
The D2D that D2D terminal is sent has found mark.
In the technical scheme, mark is found by receiving the D2D that each D2D terminal is sent, and store each D2D terminal
The D2D of transmission has found mark, makes it possible to find that mark determines each D2D terminal according to D2D.
In the above-mentioned technical solutions, it is preferable that further include: by the D2D of all D2D terminals in the D2D endpoint groups
It was found that identity map is that a virtual D2D group finds mark；Or the D2D of each D2D terminal is had found into identity map
Mark is found for a virtual D2D.
In the technical scheme, by the way that the D2D of all D2D terminals in D2D endpoint groups is had found that identity map is one
A virtual D2D group finds mark, or the D2D discovery identity map of each D2D terminal is found mark for a virtual D2D
Know, makes it possible to protect the privacy of D2D endpoint groups or each D2D terminal.Specifically, if D2D business is only needed specific to certain
The D2D of all D2D terminals can then be had found that identity map is that a virtual D2D group finds mark, if D2D by a group
Business is needed specific to each D2D terminal, then the D2D of each D2D terminal being had found to, identity map is a virtual D2D
It was found that mark.
In the above-mentioned technical solutions, it is preferable that before sending the discovery message, further includes: according to the D2D terminal
D2D discovery mark, the quantity of D2D terminal in the D2D endpoint groups and the hair of all D2D terminals in group
The resource quantity that existing message can occupy generates the discovery message.
In the technical scheme, by whole according to the D2D in the D2D of all D2D terminals discovery mark, D2D endpoint groups
Hold quantity and find message occupy resource quantity generate discovery message so that other terminals receive discovery message when, energy
Enough relevant informations that D2D endpoint groups are found by parsing discovery message.
In the above-mentioned technical solutions, it is preferable that further include: detect each D2D terminal at least one described D2D terminal
Whether the D2D endpoint groups are left；Any D2D terminal at least one D2D terminal described in detecting leaves the D2D
When endpoint groups, the discovery message is updated.
In the technical scheme, by when detecting that any D2D terminal leaves D2D endpoint groups, more new discovery message,
So that the information moment of D2D endpoint groups representated by discovery message is in last state, and then ensure that other terminals are parsing
It was found that can accurately determine the relevant information of D2D endpoint groups after message.
Wherein, detect that the step of whether each D2D terminal leaves the D2D endpoint groups specifically includes:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving described each
The feedback information of D2D terminal determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D terminal
Notification information is sent when group informs the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are really
Whether fixed each D2D terminal leaves the D2D endpoint groups.
According to the second aspect of the invention, it is also proposed that a kind of method for discovering equipment for the direct-connected communication of terminal, it is described
Method for discovering equipment is suitable for terminal, comprising: the terminal is formed at least one D2D terminal with predetermined location relationship
D2D endpoint groups, and receive the agency of D2D endpoint groups as described in that any D2D terminal is sent in the D2D endpoint groups
The request message of terminal；The terminal agrees to instruction to any D2D terminal feedback, and the D2D of itself is had found mark hair
It send to any D2D terminal, indicates that the discovery of the D2D endpoint groups disappears so that any D2D terminal generates and sends
Breath.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and agree to that instruction and the D2D of itself find mark to the D2D terminal feedback for sending request, so that sending the D2D terminal of request
It can received with sending the discovery message for indicating D2D endpoint groups for other D2D terminals as the proxy terminal of D2D terminal
All terminals in D2D endpoint groups can be found simultaneously when to discovery message, so that needing to carry out D2D discovery procedure
When, the discovery message of D2D endpoint groups can be sent by D2D terminal, avoid all terminals in D2D endpoint groups all
It sends discovery message and occupies more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that further include: after agreeing to instruction to any D2D terminal feedback, stop
Send discovery signal corresponding with the type of service of the D2D endpoint groups.Specifically, due to whole to any of the above-described D2D
After agreement instruction has been fed back at end, the discovery message of D2D endpoint groups is all sent by any of the above-described D2D terminal, there is no need to
Retransmit discovery signal corresponding with the type of service of the D2D endpoint groups.Certainly, terminal can send other types of service
Discovery signal.
According to the third aspect of the invention we, it is also proposed that a kind of method for discovering equipment for the direct-connected communication of terminal, it is described
Method for discovering equipment is suitable for terminal, comprising: the terminal detects the discovery message of other D2D terminals transmission；The terminal exists
Determine that other described D2D terminals are the agencies as the D2D endpoint groups being made of multiple D2D terminals according to the discovery message
When terminal, the discovery message is parsed, to find all terminals in the D2D endpoint groups simultaneously.
In the technical scheme, by determining that other D2D terminals are as by multiple D2D set of terminal according to discovery message
At D2D endpoint groups proxy terminal when, parsing discovery message is made with finding all terminals in D2D endpoint groups simultaneously
It obtains when needing to carry out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, be avoided
All terminals in D2D endpoint groups all send discovery message and occupy more running time-frequency resource, while also improving the hair of D2D
Existing efficiency.
In the above-mentioned technical solutions, it is preferable that parse the discovery message the step of include:
Message is found according to predefined parsing syntax parsing；Or
By being interacted with network side equipment, to be parsed to the discovery message；Or
By being communicated with other described D2D terminals, to be parsed to the discovery message.
According to the fourth aspect of the invention, it is also proposed that a kind of equipment discovery device for the direct-connected communication of terminal, it is described
Equipment finds that device is suitable for terminal, comprising: determination unit, in the terminal and at least one with predetermined location relationship
When a D2D terminal composition D2D endpoint groups, determine whether the terminal can be as the proxy terminal of the D2D endpoint groups；
First transmission unit, for when the determination unit determines that the terminal can be as the proxy terminal, sending to indicate institute
The discovery message of D2D endpoint groups is stated, so that other D2D terminals can be according to the discovery when receiving the discovery message
Message finds all terminals in the D2D endpoint groups simultaneously.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and when being determined to the proxy terminal as D2D endpoint groups, the discovery message for indicating D2D endpoint groups is sent, so that
Other D2D terminals can find all terminals in D2D endpoint groups when receiving discovery message simultaneously so that need into
When row D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, avoids D2D endpoint groups
In all terminals all send discovery message and occupy more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that the determination unit is specifically used for: being sent out at least one described D2D terminal
The request as the proxy terminal is sent, and when receiving the agreement instruction of at least one D2D terminal feedback, determines institute
The proxy terminal can be used as by stating terminal.Specifically, if D2D terminal wishes to need as D2D endpoint groups proxy terminal
Other terminals into D2D endpoint groups send request, and when other terminals in D2D endpoint groups are agreed to, can
Proxy terminal as D2D endpoint groups.
In the above-mentioned technical solutions, it is preferable that further include: receiving unit, for receiving at least one D2D end
After the agreement instruction of end feedback, receives the D2D that each D2D terminal is sent at least one described D2D terminal and find mark；Storage
Unit, the D2D discovery mark sent for storing each D2D terminal.
In the technical scheme, mark is found by receiving the D2D that each D2D terminal is sent, and store each D2D terminal
The D2D of transmission has found mark, makes it possible to find that mark determines each D2D terminal according to D2D.
In the above-mentioned technical solutions, it is preferable that further include: processing unit, for that will own in the D2D endpoint groups
The D2D discovery identity map of D2D terminal is that a virtual D2D group finds mark, or by the D2D of each D2D terminal
It was found that identity map is that a virtual D2D has found mark.
In the technical scheme, by the way that the D2D of all D2D terminals in D2D endpoint groups is had found that identity map is one
A virtual D2D group finds mark, or the D2D discovery identity map of each D2D terminal is found mark for a virtual D2D
Know, makes it possible to protect the privacy of D2D endpoint groups or each D2D terminal.Specifically, if D2D business is only needed specific to certain
The D2D of all D2D terminals can then be had found that identity map is that a virtual D2D group finds mark, if D2D by a group
Business is needed specific to each D2D terminal, then the D2D of each D2D terminal being had found to, identity map is a virtual D2D
It was found that mark.
In the above-mentioned technical solutions, it is preferable that further include: generation unit, for according to the institute in the D2D endpoint groups
There are D2D discovery mark, the quantity of D2D terminal in the D2D endpoint groups and the discovery message of D2D terminal can
The resource quantity of occupancy generates the discovery message.
In the technical scheme, by whole according to the D2D in the D2D of all D2D terminals discovery mark, D2D endpoint groups
Hold quantity and find message occupy resource quantity generate discovery message so that other terminals receive discovery message when, energy
Enough relevant informations that D2D endpoint groups are found by parsing discovery message.
In the above-mentioned technical solutions, it is preferable that further include: detection unit, for detecting at least one described D2D terminal
Each D2D terminal whether leave the D2D endpoint groups；Updating unit, for the detection unit detect it is described extremely
When any D2D terminal in a few D2D terminal leaves the D2D endpoint groups, the discovery message is updated.
In the technical scheme, by when detecting that any D2D terminal leaves D2D endpoint groups, more new discovery message,
So that the information moment of D2D endpoint groups representated by discovery message is in last state, and then ensure that other terminals are parsing
It was found that can accurately determine the relevant information of D2D endpoint groups after message.
In the above-mentioned technical solutions, it is preferable that the detection unit is specifically used for:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving described each
The feedback information of D2D terminal determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D terminal
Notification information is sent when group informs the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are really
Whether fixed each D2D terminal leaves the D2D endpoint groups.
According to the fifth aspect of the invention, it is also proposed that a kind of equipment discovery device for the direct-connected communication of terminal, it is described
Equipment finds that device is suitable for terminal, comprising: receiving unit, in the terminal and at least one with predetermined location relationship
When a D2D terminal composition D2D endpoint groups, D2D described in the conduct that any D2D terminal is sent in the D2D endpoint groups is received
The request message of the proxy terminal of endpoint groups；Transmission unit, for agreeing to instruction to any D2D terminal feedback, and will
The D2D discovery mark of the terminal is sent to any D2D terminal, so that any D2D terminal generates and sends expression
The discovery message of the D2D endpoint groups.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and agree to that instruction and the D2D of itself find mark to the D2D terminal feedback for sending request, so that sending the D2D terminal of request
It can received with sending the discovery message for indicating D2D endpoint groups for other D2D terminals as the proxy terminal of D2D terminal
All terminals in D2D endpoint groups can be found simultaneously when to discovery message, so that needing to carry out D2D discovery procedure
When, the discovery message of D2D endpoint groups can be sent by D2D terminal, avoid all terminals in D2D endpoint groups all
It sends discovery message and occupies more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that the transmission unit is also used to: same to any D2D terminal feedback
After meaning order, stop sending discovery signal corresponding with the type of service of the D2D endpoint groups.Specifically, due to
After any of the above-described D2D terminal has fed back agreement instruction, the discovery message of D2D endpoint groups is all carried out by any of the above-described D2D terminal
It sends, there is no need to retransmit discovery signal corresponding with the type of service of the D2D endpoint groups.Certainly, terminal can be sent out
Give the discovery signal of other types of service.
According to the sixth aspect of the invention, it is also proposed that a kind of equipment discovery device for the direct-connected communication of terminal, it is described
Equipment finds that device is suitable for terminal, comprising: detection unit, for detecting the discovery message of other D2D terminals transmission；Processing is single
Member, for determining that other described D2D terminals are as the D2D terminal being made of multiple D2D terminals according to the discovery message
When the proxy terminal of group, the discovery message is parsed, to find all terminals in the D2D endpoint groups simultaneously.
In the technical scheme, by determining that other D2D terminals are as by multiple D2D set of terminal according to discovery message
At D2D endpoint groups proxy terminal when, parsing discovery message is made with finding all terminals in D2D endpoint groups simultaneously
It obtains when needing to carry out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, be avoided
All terminals in D2D endpoint groups all send discovery message and occupy more running time-frequency resource, while also improving the hair of D2D
Existing efficiency.
In the above-mentioned technical solutions, it is preferable that the processing unit is specifically used for: according to predefined parsing syntax parsing
The discovery message；Or by being interacted with network side equipment, to be parsed to the discovery message；Or by with it is described
Other D2D terminals are communicated, to parse to the discovery message.
By above technical scheme, the running time-frequency resource occupied in D2D discovery procedure is effectively reduced, and improves D2D
Discovery efficiency.
Detailed description of the invention
Fig. 1 shows showing for the method for discovering equipment for the direct-connected communication of terminal according to first embodiment of the invention
Meaning flow chart；
Fig. 2 shows showing for the equipment discovery device for the direct-connected communication of terminal according to first embodiment of the invention
Meaning block diagram；
Fig. 3 shows showing for the method for discovering equipment for the direct-connected communication of terminal of second embodiment according to the present invention
Meaning flow chart；
Fig. 4 shows showing for the equipment discovery device for the direct-connected communication of terminal of second embodiment according to the present invention
Meaning block diagram；
Fig. 5 shows showing for the method for discovering equipment for the direct-connected communication of terminal of third embodiment according to the present invention
Meaning flow chart；
Fig. 6 shows showing for the equipment discovery device for the direct-connected communication of terminal of third embodiment according to the present invention
Meaning block diagram；
Fig. 7 shows the D2D endpoint groups discovery procedure schematic diagram of embodiment according to the present invention；
Fig. 8 shows the Signalling exchange schematic diagram in the discovery procedure of the D2D endpoint groups of embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows showing for the method for discovering equipment for the direct-connected communication of terminal according to first embodiment of the invention
Meaning flow chart.
As shown in Figure 1, the method for discovering equipment for the direct-connected communication of terminal according to first embodiment of the invention, institute
Method for discovering equipment is stated suitable for terminal, comprising: step 102, the terminal and at least one D2D with predetermined location relationship
Terminal forms D2D endpoint groups, and determining whether can be as the proxy terminal of the D2D endpoint groups；Step 104, true
When can be used as the proxy terminal surely, the terminal sends the discovery message for indicating the D2D endpoint groups, for other
D2D terminal according to the discovery message while can be found in the D2D endpoint groups when receiving the discovery message
All terminals.
In the technical scheme, terminal is by forming D2D terminal at least one D2D terminal with predetermined location relationship
Group, and when being determined to the proxy terminal as D2D endpoint groups, the discovery message for indicating D2D endpoint groups is sent, with
Other D2D terminals are enable to find all terminals in D2D endpoint groups simultaneously when receiving discovery message, so that needing
When carrying out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal in D2D endpoint groups,
It avoids all terminals in D2D endpoint groups all to send discovery message and occupy more running time-frequency resource, also improve simultaneously
The discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that determine whether can be as the proxy terminal of endpoint groups the step of
Specifically include: the terminal sends the request as the proxy terminal at least one described D2D terminal；It is described receiving
When the agreement instruction of at least one D2D terminal feedback, it is determined to as the proxy terminal.Specifically, if D2D terminal it is expected
As D2D endpoint groups proxy terminal, then other terminals into D2D endpoint groups are needed to send request, and in D2D terminal
It, can be as the proxy terminal of D2D endpoint groups when other terminals in group are agreed to.
In the above-mentioned technical solutions, it is preferable that after the agreement instruction for receiving at least one D2D terminal feedback,
Further include: it receives the D2D that each D2D terminal is sent at least one described D2D terminal and finds mark；And storage is described each
The D2D that D2D terminal is sent has found mark.
In the technical scheme, it is sent out by the D2D that each D2D terminal received at least one above-mentioned D2D terminal is sent
It now identifies, and stores the D2D discovery mark that each D2D terminal is sent, make it possible to find that mark determines each D2D according to D2D
Terminal.
In the above-mentioned technical solutions, it is preferable that further include: by the D2D of all D2D terminals in the D2D endpoint groups
It was found that identity map is that a virtual D2D group finds mark；Or the D2D of each D2D terminal is had found into identity map
Mark is found for a virtual D2D.
In the technical scheme, by the way that the D2D of all D2D terminals in D2D endpoint groups is had found that identity map is one
A virtual D2D group finds mark, or the D2D discovery identity map of each D2D terminal is found mark for a virtual D2D
Know, makes it possible to protect the privacy of D2D endpoint groups or each D2D terminal.Specifically, if D2D business is only needed specific to certain
The D2D of all D2D terminals can then be had found that identity map is that a virtual D2D group finds mark, if D2D by a group
Business is needed specific to each D2D terminal, then the D2D of each D2D terminal being had found to, identity map is a virtual D2D
It was found that mark.
In the above-mentioned technical solutions, it is preferable that before sending the discovery message, further includes: according to the D2D terminal
D2D discovery mark, the quantity of D2D terminal in the D2D endpoint groups and the hair of all D2D terminals in group
The resource quantity that existing message can occupy generates the discovery message.
In the technical scheme, by whole according to the D2D in the D2D of all D2D terminals discovery mark, D2D endpoint groups
Hold quantity and find message occupy resource quantity generate discovery message so that other terminals receive discovery message when, energy
Enough relevant informations that D2D endpoint groups are found by parsing discovery message.
In the above-mentioned technical solutions, it is preferable that further include: detect each D2D terminal at least one described D2D terminal
Whether the D2D endpoint groups are left；Any D2D terminal at least one D2D terminal described in detecting leaves the D2D
When endpoint groups, the discovery message is updated.
In the technical scheme, by when detecting that any D2D terminal leaves D2D endpoint groups, more new discovery message,
So that the information moment of D2D endpoint groups representated by discovery message is in last state, and then ensure that other terminals are parsing
It was found that can accurately determine the relevant information of D2D endpoint groups after message.
Wherein, detect that the step of whether each D2D terminal leaves the D2D endpoint groups specifically includes:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving described each
The feedback information of D2D terminal determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D terminal
Notification information is sent when group informs the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are really
Whether fixed each D2D terminal leaves the D2D endpoint groups.
Fig. 2 shows showing for the equipment discovery device for the direct-connected communication of terminal according to first embodiment of the invention
Meaning block diagram.
As shown in Fig. 2, the equipment for the direct-connected communication of terminal according to first embodiment of the invention finds device
200, comprising: determination unit 202 and the first transmission unit 204, wherein the equipment discovery device 200 is suitable for terminal.
Wherein, the determination unit 202, for whole at least one D2D with predetermined location relationship in the terminal
When the composition D2D endpoint groups of end, determine whether the terminal can be as the proxy terminal of the D2D endpoint groups；First hair
Unit 204 is sent, for when the determination unit 202 determines that the terminal can be used as the proxy terminal, sending to indicate institute
The discovery message of D2D endpoint groups is stated, so that other D2D terminals can be according to the discovery when receiving the discovery message
Message finds all terminals in the D2D endpoint groups simultaneously.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and when being determined to the proxy terminal as D2D endpoint groups, the discovery message for indicating D2D endpoint groups is sent, so that
Other D2D terminals can find all terminals in D2D endpoint groups when receiving discovery message simultaneously so that need into
When row D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, avoids D2D endpoint groups
In all terminals all send discovery message and occupy more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that the determination unit 202 is specifically used for: at least one described D2D terminal
The request as the proxy terminal is sent, and when receiving the agreement instruction of at least one D2D terminal feedback, is determined
The terminal can be used as the proxy terminal.Specifically, it is needed if D2D terminal is wished as D2D endpoint groups proxy terminal
Will other terminals into D2D endpoint groups send request, and when other terminals in D2D endpoint groups are agreed to, ability
Proxy terminal enough as D2D endpoint groups.
In the above-mentioned technical solutions, it is preferable that further include: receiving unit 206, for receive it is described at least one
After the agreement instruction of D2D terminal feedback, receives the D2D that each D2D terminal is sent at least one described D2D terminal and find mark
Know；Storage unit 208, the D2D discovery mark sent for storing each D2D terminal.
In the technical scheme, mark is found by receiving the D2D that each D2D terminal is sent, and store each D2D terminal
The D2D of transmission has found mark, makes it possible to find that mark determines each D2D terminal according to D2D.
In the above-mentioned technical solutions, it is preferable that further include: processing unit 210, for will be in the D2D endpoint groups
The D2D discovery identity map of all D2D terminals is that a virtual D2D group finds mark, or by each D2D terminal
D2D has found that identity map is that a virtual D2D has found mark.
In the technical scheme, by the way that the D2D of all D2D terminals in D2D endpoint groups is had found that identity map is one
A virtual D2D group finds mark, or the D2D discovery identity map of each D2D terminal is found mark for a virtual D2D
Know, makes it possible to protect the privacy of D2D endpoint groups or each D2D terminal.Specifically, if D2D business is only needed specific to certain
The D2D of all D2D terminals can then be had found that identity map is that a virtual D2D group finds mark, if D2D by a group
Business is needed specific to each D2D terminal, then the D2D of each D2D terminal being had found to, identity map is a virtual D2D
It was found that mark.
In the above-mentioned technical solutions, it is preferable that further include: generation unit 212, for according in the D2D endpoint groups
All D2D terminals D2D discovery mark, the quantity and the discovery message of D2D terminal in the D2D endpoint groups
The resource quantity that can be occupied generates the discovery message.
In the technical scheme, by whole according to the D2D in the D2D of all D2D terminals discovery mark, D2D endpoint groups
Hold quantity and find message occupy resource quantity generate discovery message so that other terminals receive discovery message when, energy
Enough relevant informations that D2D endpoint groups are found by parsing discovery message.
In the above-mentioned technical solutions, it is preferable that further include: detection unit 214, it is whole for detecting at least one described D2D
Whether each D2D terminal in end leaves the D2D endpoint groups；Updating unit 216, for being examined in the detection unit 214
When any D2D terminal at least one D2D terminal described in measuring leaves the D2D endpoint groups, the discovery message is updated.
In the technical scheme, by when detecting that any D2D terminal leaves D2D endpoint groups, more new discovery message,
So that the information moment of D2D endpoint groups representated by discovery message is in last state, and then ensure that other terminals are parsing
It was found that can accurately determine the relevant information of D2D endpoint groups after message.
In the above-mentioned technical solutions, it is preferable that the detection unit 214 is specifically used for:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving described each
The feedback information of D2D terminal determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D terminal
Notification information is sent when group informs the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are really
Whether fixed each D2D terminal leaves the D2D endpoint groups.
Fig. 3 shows showing for the method for discovering equipment for the direct-connected communication of terminal of second embodiment according to the present invention
Meaning flow chart.
As shown in figure 3, the method for discovering equipment for the direct-connected communication of terminal of second embodiment according to the present invention, institute
Method for discovering equipment is stated suitable for terminal, comprising: step 302, the terminal and at least one D2D with predetermined location relationship
Terminal forms D2D endpoint groups, and receives D2D terminal group described in the conduct that any D2D terminal is sent in the D2D endpoint groups
The request message of the proxy terminal of group；Step 304, the terminal agrees to instruction to any D2D terminal feedback, and by itself
D2D discovery mark be sent to any D2D terminal, indicate that the D2D is whole so that any D2D terminal generates and sends
Hold the discovery message of group.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and agree to that instruction and the D2D of itself find mark to the D2D terminal feedback for sending request, so that sending the D2D terminal of request
It can received with sending the discovery message for indicating D2D endpoint groups for other D2D terminals as the proxy terminal of D2D terminal
All terminals in D2D endpoint groups can be found simultaneously when to discovery message, so that needing to carry out D2D discovery procedure
When, the discovery message of D2D endpoint groups can be sent by D2D terminal, avoid all terminals in D2D endpoint groups all
It sends discovery message and occupies more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that further include: after agreeing to instruction to any D2D terminal feedback, stop
Send discovery signal corresponding with the type of service of the D2D endpoint groups.Specifically, due to whole to any of the above-described D2D
After agreement instruction has been fed back at end, the discovery message of D2D endpoint groups is all sent by any of the above-described D2D terminal, there is no need to
Retransmit discovery signal corresponding with the type of service of the D2D endpoint groups.Certainly, terminal can send other types of service
Discovery signal.
Fig. 4 shows showing for the equipment discovery device for the direct-connected communication of terminal of second embodiment according to the present invention
Meaning block diagram.
As shown in figure 4, the equipment for the direct-connected communication of terminal of second embodiment according to the present invention finds device
400, comprising: receiving unit 402 and transmission unit 404, wherein the equipment discovery device 400 is suitable for terminal.
Wherein, receiving unit 404, in the terminal and at least one D2D set of terminal of predetermined location relationship
When at D2D endpoint groups, the generation of D2D endpoint groups as described in that any D2D terminal is sent in the D2D endpoint groups is received
Manage the request message of terminal；Transmission unit 404, for agreeing to instruction to any D2D terminal feedback, and by the terminal
D2D discovery mark is sent to any D2D terminal, indicates the D2D terminal so that any D2D terminal generates and sends
The discovery message of group.
In the technical scheme, by forming D2D terminal group at least one D2D terminal with predetermined location relationship
Group, and agree to that instruction and the D2D of itself find mark to the D2D terminal feedback for sending request, so that sending the D2D terminal of request
It can received with sending the discovery message for indicating D2D endpoint groups for other D2D terminals as the proxy terminal of D2D terminal
All terminals in D2D endpoint groups can be found simultaneously when to discovery message, so that needing to carry out D2D discovery procedure
When, the discovery message of D2D endpoint groups can be sent by D2D terminal, avoid all terminals in D2D endpoint groups all
It sends discovery message and occupies more running time-frequency resource, while also improving the discovery efficiency of D2D.
In the above-mentioned technical solutions, it is preferable that the transmission unit 404 is also used to: being fed back to any D2D terminal
After agreeing to instruction, stop sending discovery signal corresponding with the type of service of the D2D endpoint groups.Specifically, due to
To any of the above-described D2D terminal fed back agreement instruction after, the discovery message of D2D endpoint groups all by any of the above-described D2D terminal into
Row is sent, and there is no need to retransmit discovery signal corresponding with the type of service of the D2D endpoint groups.Certainly, terminal can be with
Send the discovery signal of other types of service.
Fig. 5 shows showing for the method for discovering equipment for the direct-connected communication of terminal of third embodiment according to the present invention
Meaning flow chart.
As shown in figure 5, the method for discovering equipment for the direct-connected communication of terminal of third embodiment according to the present invention, institute
Method for discovering equipment is stated suitable for terminal, comprising: step 502, the terminal detects the discovery message of other D2D terminals transmission；
Step 504, the terminal is determining that other described D2D terminals are formed as by multiple D2D terminals according to the discovery message
D2D endpoint groups proxy terminal when, parse the discovery message, it is all in the D2D endpoint groups to find simultaneously
Terminal.
In the technical scheme, by determining that other D2D terminals are as by multiple D2D set of terminal according to discovery message
At D2D endpoint groups proxy terminal when, parsing discovery message is made with finding all terminals in D2D endpoint groups simultaneously
It obtains when needing to carry out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, be avoided
All terminals in D2D endpoint groups all send discovery message and occupy more running time-frequency resource, while also improving the hair of D2D
Existing efficiency.
In the above-mentioned technical solutions, it is preferable that parse the discovery message the step of include:
Message is found according to predefined parsing syntax parsing；Or
By being interacted with network side equipment, to be parsed to the discovery message；Or
By being communicated with other described D2D terminals, to be parsed to the discovery message.
Fig. 6 shows showing for the equipment discovery device for the direct-connected communication of terminal of third embodiment according to the present invention
Meaning block diagram.
As shown in fig. 6, the equipment for the direct-connected communication of terminal of third embodiment according to the present invention finds device
600, comprising: detection unit 602 and processing unit 604, wherein the equipment discovery device 600 is suitable for terminal.
Wherein, detection unit 602, for detecting the discovery message of other D2D terminals transmission；Processing unit 604 is used for
Determine that other described D2D terminals are the agencies as the D2D endpoint groups being made of multiple D2D terminals according to the discovery message
When terminal, the discovery message is parsed, to find all terminals in the D2D endpoint groups simultaneously.
In the technical scheme, by determining that other D2D terminals are as by multiple D2D set of terminal according to discovery message
At D2D endpoint groups proxy terminal when, parsing discovery message is made with finding all terminals in D2D endpoint groups simultaneously
It obtains when needing to carry out D2D discovery procedure, the discovery message of D2D endpoint groups can be sent by a D2D terminal, be avoided
All terminals in D2D endpoint groups all send discovery message and occupy more running time-frequency resource, while also improving the hair of D2D
Existing efficiency.
In the above-mentioned technical solutions, it is preferable that the processing unit 604 is specifically used for: according to predefined parsing grammer
Parse the discovery message；Or by being interacted with network side equipment, to be parsed to the discovery message；Or by with
Other described D2D terminals are communicated, to parse to the discovery message.
The invention also provides a kind of terminals, comprising: finds dress for the equipment of the direct-connected communication of terminal as shown in Figure 2
Set 200；And/or device 400 is found for the equipment of the direct-connected communication of terminal as shown in Figure 4；And/or as shown in Figure 6
Equipment for the direct-connected communication of terminal finds device 600.
Below in conjunction with Fig. 7 to Fig. 8 technical solution that the present invention will be described in detail.
Technical solution of the present invention mainly improves discovery efficiency using the group characteristics of D2D, suitable for there is network to cover
Lid and the not scene of the network coverage.
Since the invention mainly relates to the protocols of the side RAN, it is therefore desirable to illustratively technical solution of the present invention pair
The hypothesis of the side CN.Present invention assumes that network side is in the high-rise management for carrying out D2D group, terminal can be according to the mark of another terminal
Knowledge discriminates whether to belong to a group.Under the scene of the not network coverage, terminal also can be according to the information such as group of pre-configuration
ID is organized to differentiate whether the UE being found belongs in a group.
Main thought of the invention can be summarized as follows: for had been carried out in specific region each other discovery or by
The preparatory associated terminal of D2D connection setup before, can be undertaken by one of terminal Discovery Proxy (it was found that
Agency) role.The terminal and other select its for agency terminal between have based on static signing information or based on application
The trusting relationship of driving.That is, after the selection and confirmation for completing agency, as long as still maintaining certain proximity relations, D2D hair
The transmission of existing message is sent by acting on behalf of node.The UE (User equipment, user equipment) for receiving D2D discovery message can be with
Multiple D2D terminals are disposably found according to the D2D discovery message received.
As shown in fig. 7, the UE (Monitoring UE) for executing discovery procedure acts on behalf of what UE (Proxy UE) was sent receiving
After the discovery message for representing particular demographic, know that multiple D2D UE and multiple D2D UE are currently running by parsing the message to
Application information.
Wherein, the signaling process of discovery procedure is as shown in figure 8, the UE in D2D group carries out agency confirmation with UE is acted on behalf of, i.e.,
The UE as agency is selected, the UE as agency can be interacted if necessary with CN node.When sending discovery message,
D2D group discovery message can be sent by acting on behalf of UE, so that the UE for executing discovery procedure has found multiple D2D terminals simultaneously.
Specifically, in the inventive solutions, it introduces the discovery of Discovery Proxy and determines mechanism.
Discovery Proxy is the hand for realizing high efficiency D2D discovery under high density D2D terminal scene by implementation level tissue
Section.
Wherein, some terminal in specific region, can be by existing in D2D if it is desired to undertake the role
The information is sent on discovery channel.Other D2D terminals can choose whether to select the terminal as Proxy.If same
Meaning, then send determining message, and the D2D being assigned to network request is had found that mark or the D2D being pre-configured discovery mark are sent
To the terminal as Proxy.
In order to solve D2D discovery mark Privacy Protection, all UE can will be identified according to specific algorithm into
Row mapping.The new logo and original mark that the mapping obtains may have one-to-one or one-to-many corresponding relationship, and this is reflected
The relationship of penetrating can be parsed in receiving end UE or by the interaction with network side.Specifically, one-to-one mapping is suitable for D2D
It was found that business needs the situation specific to some UE, and one-to-many mapping is then suitable for D2D discovery business and only needs specific to certain
The situation of a group.For example, if the purpose of D2D discovery is user's push into particular range based on group's potential consumption
The coupon information of intention does not need then specific to some user, it is only necessary to some group.
As Proxy node terminal safeguard group in UE reachability information when, can by being periodically detected,
The UE for leaving group can be allowed actively to inform Proxy node.In order to reduce the compound of signaling, if it is being periodically detected, it should
The big time cycle is used as far as possible.Also the other information of D2D, such as channel measurement be can use, it is reachable the processes detection such as to synchronize
Property, it does not need to trigger D2D discovery procedure again.
The building and transmission mechanism of D2D group discovery message proposed by the present invention described in detail below:
Defined discovery mechanism is different from 3GPP, the D2D hair that the UE of group's discovery mechanism proposed by the present invention is sent
Existing message represents multiple UE positioned at specific region.It, should according to the statistics residence time characteristic and terminal density of UE in group
It was found that the quantity for the UE that message can represent may have bigger quantitative range.After carrying out Proxy confirmation, D2D endpoint groups
In other terminals can choose and do not retransmit D2D discovery signal, when needing to trigger unless there are the demands of other non-group service
It is sent again.
The building of group's discovery message is the mark of the multiple UE obtained according to mapping to carry out.It specifically can be according to hair
The availability of existing resource and the quantity of UE identify to generate discovery.Group discovery, which identifies not encrypted content, can be application
Level is other, such as can construct following group's discovery message: Cardgamefans#
100.outlet.xuanwumenarea beijing, group discovery message indicate one of Beijing Xuanwumen area
There are 100 D2D users for thinking to play card game together in " outlet ", whether group discovery message needs to retransmit after encrypting
Configuration information when D2D discovery is carried out depending on most of UE.
The resolving of Discovery message described in detail below.
Analysis mode one: receiving end UE can be helped to parse group discovery message using unified identification (RNC-ID) analytic grammer.
The grammer of this application layer can not 3GPP specification in middle definition, XML mechanism can be used, with guarantee to terminal D 2D business
Interoperability.
Analysis mode two: receiving end UE is after receiving the information, if interested in the group, can pass through network side solution
The information of group Proxy node is analysed, to carry out subsequent D2D business.It should be noted that if it is the not network coverage
Scene, receiving end UE can only be parsed by the interaction with Proxy node.Receiving end UE is possible can only be with the part in group
The direct D2D communication of UE progress, and the UE that cannot directly reach, it may be necessary to be communicated by the method that UE is relayed.
Technical solution of the present invention makes the D2D group endpoints with cluster header can be improved D2D discovery effect
Rate, the scene that the D2D terminal density suitable for the subsequent enhancing version of 3GPP LTE and future 5G system increases, can be reduced
The transmission of unnecessary D2D discovery message and resource occupation, improve the operational efficiency of system.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, proposes a kind of new for the direct-connected communication of terminal
Equipment find scheme, effectively reduce the running time-frequency resource occupied in D2D discovery procedure, and improve the discovery efficiency of D2D.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of method for discovering equipment for the direct-connected communication of terminal is suitable for terminal characterized by comprising
The terminal forms D2D endpoint groups at least one D2D terminal with predetermined location relationship, and determining whether can
Proxy terminal as the D2D endpoint groups；
When being determined to as the proxy terminal, the terminal sends the discovery message for indicating the D2D endpoint groups, with
According to the discovery message while the D2D terminal group can be found when receiving the discovery message for other D2D terminals
All terminals in group；
Determine whether to specifically include as the step of proxy terminal of the endpoint groups:
The terminal sends the request as the proxy terminal at least one described D2D terminal；
When receiving the agreement instruction of at least one D2D terminal feedback, it is determined to as the proxy terminal；
After the agreement instruction for receiving at least one D2D terminal feedback, further includes:
It receives the D2D that each D2D terminal is sent at least one described D2D terminal and finds mark；And
Store the D2D discovery mark that each D2D terminal is sent.
2. the method for discovering equipment according to claim 1 for the direct-connected communication of terminal, which is characterized in that further include:
It is a virtual D2D group discovery by the D2D discovery identity map of all D2D terminals in the D2D endpoint groups
Mark；Or
It is that a virtual D2D has found mark by the D2D discovery identity map of each D2D terminal.
3. the method for discovering equipment according to claim 1 for the direct-connected communication of terminal, which is characterized in that described in transmission
It was found that before message, further includes:
It is whole according to the D2D in the D2D of all D2D terminals in D2D endpoint groups discovery mark, the D2D endpoint groups
The resource quantity that the quantity at end and the discovery message can occupy generates the discovery message.
4. the method for discovering equipment according to any one of claim 1 to 3 for the direct-connected communication of terminal, feature exist
In, further includes:
Whether each D2D terminal detected at least one described D2D terminal leaves the D2D endpoint groups；
When detecting that any D2D terminal at least one described D2D terminal leaves the D2D endpoint groups, described in update
It was found that message.
5. the method for discovering equipment according to claim 4 for the direct-connected communication of terminal, which is characterized in that detection is described every
The step of whether a D2D terminal leaves the D2D endpoint groups specifically includes:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving each D2D end
The feedback information at end determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D endpoint groups
When send notification information and inform the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are to determine
State whether each D2D terminal leaves the D2D endpoint groups.
6. a kind of method for discovering equipment for the direct-connected communication of terminal is suitable for terminal characterized by comprising
The terminal forms D2D endpoint groups at least one D2D terminal with predetermined location relationship, and receives the D2D
The request message of the proxy terminal of D2D endpoint groups as described in that any D2D terminal is sent in endpoint groups；
The terminal agrees to instruction to any D2D terminal feedback, and the D2D of itself discovery mark is sent to described any
D2D terminal indicates the discovery message of the D2D endpoint groups so that any D2D terminal generates and sends.
7. the method for discovering equipment according to claim 6 for the direct-connected communication of terminal, which is characterized in that further include:
After agreeing to instruction to any D2D terminal feedback, stop sending opposite with the type of service of the D2D endpoint groups
The discovery signal answered.
8. a kind of method for discovering equipment for the direct-connected communication of terminal is suitable for terminal characterized by comprising
The terminal detects the discovery message of other D2D terminals transmission；
The terminal is determining that other described D2D terminals are as the D2D being made of multiple D2D terminals according to the discovery message
When the proxy terminal of endpoint groups, the discovery message is parsed, to find all terminals in the D2D endpoint groups simultaneously；
The step of parsing the discovery message include:
Message is found according to predefined parsing syntax parsing；Or
By being interacted with network side equipment, to be parsed to the discovery message；Or
By being communicated with other described D2D terminals, to be parsed to the discovery message.
9. a kind of equipment for the direct-connected communication of terminal finds device, it is suitable for terminal characterized by comprising
Determination unit, for forming D2D endpoint groups in the terminal and at least one D2D terminal with predetermined location relationship
When, determine whether the terminal can be as the proxy terminal of the D2D endpoint groups；
First transmission unit, for sending table when the determination unit determines that the terminal can be as the proxy terminal
Show the discovery message of the D2D endpoint groups, so that other D2D terminals can be according to described when receiving the discovery message
It was found that message finds all terminals in the D2D endpoint groups simultaneously；
The determination unit is specifically used for:
The request as the proxy terminal is sent at least one described D2D terminal, and is receiving at least one described D2D
When the agreement instruction of terminal feedback, determine that the terminal can be used as the proxy terminal；
Further include:
Receiving unit, for after the agreement instruction for receiving at least one D2D terminal feedback, receive it is described at least one
The D2D that each D2D terminal is sent in D2D terminal has found mark；
Storage unit, the D2D discovery mark sent for storing each D2D terminal.
10. the equipment according to claim 9 for the direct-connected communication of terminal finds device, which is characterized in that further include:
Processing unit, for being one virtual by the D2D discovery identity map of all D2D terminals in the D2D endpoint groups
D2D group find mark, or
It is that a virtual D2D has found mark by the D2D discovery identity map of each D2D terminal.
11. the equipment according to claim 9 for the direct-connected communication of terminal finds device, which is characterized in that further include:
Generation unit, for according to the D2D of all D2D terminals in D2D endpoint groups discovery mark, the D2D terminal
The resource quantity that the quantity of D2D terminal in group and the discovery message can occupy generates the discovery message.
12. finding device for the equipment of the direct-connected communication of terminal according to any one of claim 9 to 11, feature exists
In, further includes:
Detection unit, for detecting whether each D2D terminal at least one described D2D terminal leaves the D2D terminal group
Group；
Updating unit, for detecting that any D2D terminal at least one described D2D terminal leaves institute in the detection unit
When stating D2D endpoint groups, the discovery message is updated.
13. the equipment according to claim 12 for the direct-connected communication of terminal finds device, which is characterized in that the detection
Unit is specifically used for:
Request signal is sent to each D2D terminal in real time or periodically, according to whether receiving each D2D end
The feedback information at end determines whether each D2D terminal leaves the D2D endpoint groups；Or
It sends control signaling to each D2D terminal, so that each D2D terminal is leaving the D2D endpoint groups
When send notification information and inform the proxy terminal；Or
According to whether the channel measurement information and/or synchronizing information that can receive each D2D terminal feedback are to determine
State whether each D2D terminal leaves the D2D endpoint groups.
14. a kind of equipment for the direct-connected communication of terminal finds device, it is suitable for terminal characterized by comprising
Receiving unit, for forming D2D endpoint groups in the terminal and at least one D2D terminal with predetermined location relationship
When, receive the request of the proxy terminal of D2D endpoint groups as described in that any D2D terminal is sent in the D2D endpoint groups
Message；
The D2D of the terminal for agreeing to instruction to any D2D terminal feedback, and is had found that mark is sent by transmission unit
To any D2D terminal, the discovery message of the D2D endpoint groups is indicated so that any D2D terminal generates and sends.
15. the equipment according to claim 14 for the direct-connected communication of terminal finds device, which is characterized in that the transmission
Unit is also used to:
After agreeing to instruction to any D2D terminal feedback, stop sending opposite with the type of service of the D2D endpoint groups
The discovery signal answered.
16. a kind of equipment for the direct-connected communication of terminal finds device, it is suitable for terminal characterized by comprising
Detection unit, for detecting the discovery message of other D2D terminals transmission；
Processing unit, for determining that other described D2D terminals are formed as by multiple D2D terminals according to the discovery message
D2D endpoint groups proxy terminal when, parse the discovery message, it is all in the D2D endpoint groups to find simultaneously
Terminal；
The processing unit is specifically used for:
Message is found according to predefined parsing syntax parsing；Or
By being interacted with network side equipment, to be parsed to the discovery message；Or
By being communicated with other described D2D terminals, to be parsed to the discovery message.
17. a kind of terminal characterized by comprising
The equipment for the direct-connected communication of terminal as described in any one of claim 9 to 13 finds device；And/or
The equipment for the direct-connected communication of terminal as described in claims 14 or 15 finds device；And/or
Equipment as claimed in claim 16 for the direct-connected communication of terminal finds device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206188.XA CN104796852B (en) | 2015-04-27 | 2015-04-27 | Method for discovering equipment, device and terminal for the direct-connected communication of terminal |
| PCT/CN2015/080410 WO2016173077A1 (en) | 2015-04-27 | 2015-05-29 | Method, apparatus and terminal for device discovery in terminal direct communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510206188.XA CN104796852B (en) | 2015-04-27 | 2015-04-27 | Method for discovering equipment, device and terminal for the direct-connected communication of terminal |
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| CN104796852A CN104796852A (en) | 2015-07-22 |
| CN104796852B true CN104796852B (en) | 2019-02-01 |
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| US9894648B2 (en) * | 2016-03-01 | 2018-02-13 | Wipro Limited | Methods and systems for providing device to device proximity services in wireless communication networks |
| CN108834107B (en) * | 2017-05-05 | 2020-12-18 | 上海诺基亚贝尔股份有限公司 | Method and apparatus for sidelink discovery |
| CN110139340A (en) * | 2018-02-09 | 2019-08-16 | 电信科学技术研究院有限公司 | A kind of connection method for building up and terminal |
| CN112235773B (en) * | 2020-11-02 | 2023-09-01 | 深圳市中诺通讯有限公司 | Direct communication method based on 5G D2D technology |
| CN116938672B (en) * | 2023-09-18 | 2024-02-23 | 中国电信股份有限公司 | Task model distribution method, device, computer equipment, medium and product |
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- 2015-04-27 CN CN201510206188.XA patent/CN104796852B/en active Active
- 2015-05-29 WO PCT/CN2015/080410 patent/WO2016173077A1/en active Application Filing
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| CN104796852A (en) | 2015-07-22 |
| WO2016173077A1 (en) | 2016-11-03 |
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