CN104244316B - It was found that signal detecting method and equipment - Google Patents
It was found that signal detecting method and equipment Download PDFInfo
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- CN104244316B CN104244316B CN201310226578.4A CN201310226578A CN104244316B CN 104244316 B CN104244316 B CN 104244316B CN 201310226578 A CN201310226578 A CN 201310226578A CN 104244316 B CN104244316 B CN 104244316B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
The embodiment of the invention discloses one kind to find signal detecting method and equipment, it is related to wireless communication field, for solving, when finding terminal and being found terminal to belong to nonsynchronous two cells or find terminal and be found terminal not in the network coverage, the problem of how terminal detects the discovery signal for being found terminal found.In this programme, when finding terminal and being found terminal to belong to nonsynchronous two cells or find terminal and be found terminal not under the network coverage, it was found that the synchronizing signal that terminal can be found cell where terminal by detection obtains being found the discovery signal transmission timing information of terminal, and then the physical resource according to used in discovery signal transmission timing information determination is found terminal transmission discovery signal, and detection is found the discovery signal of terminal transmission on the physical resource, the discovery signal of terminal is found so as to solve the problems, such as to find how terminal detects.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of discovery signal detecting method and equipment.
Background technology
In traditional cellular telecommunication art, the data communication flow journey between two terminals is as shown in Figure 1.Two terminals
The business such as voice-and-data interact by each resident eNB and core net.
Device-to-device (Device-to-Device, D2D), i.e. terminal direct connection technology, refer to that neighbouring terminal can be
In short range by way of direct connected link carries out data transmission, it is not necessary to turned by Centroid (i.e. base station)
Hair, as shown in Figure 2.D2D technologies short haul connection feature in itself and direct communication mode make it have following advantage：
Terminal carrying out direct communication in close range mode can realize higher data rate, relatively low delay and relatively low power consumption；
Utilize the short distance feature of user terminal widely distributed in network and D2D communication links, it is possible to achieve frequency spectrum
Effective utilization of resource；
D2D direct communication mode can adapt to such as the local number of business such as wireless point-to-point (Peer to Peer, P2P)
According to shared demand, there is provided have the data, services of flexible adaptation ability；
D2D direct communications can expand the covering of network using substantial amounts in network and widely distributed communication terminal
Scope.
Long Term Evolution (Long Term Evolution, LTE) D2D technologies refer to be operated in LTE authorize in frequency range by
The D2D of LTE network control is found and communication process.On the one hand the advantages of D2D technologies can be given full play to, while LTE network
Control can also overcome some problems of traditional D2D technologies, such as disturb uncontrollable etc..The introducing of LTE D2D characteristics will make LTE
Technology is from the simple wireless mobile cellular communication technology towards general interconnection technique (Universal Connectivity
Technology direction evolution).
Discovery between D2D user equipmenies (User Equipment, UE) is realized by finding signal, it is found that signal can be taken
With certain identification information, such as facility information, application message, service type etc., it is found that UE identifies quilt by these information
It was found that UE.It was found that signal typically transmits in special discovery subframe, different UE discovery signal can take different frequency domains
Resource.When there is the network coverage, it is found that resource can be scheduled by base station, for example it is to find subframe to configure which subframe, which
A little frequency domain resources can be used for transmission and find signal.When there is no the network coverage, it is found that subframe and frequency domain resource are usually predetermined
Justice is good.It was found that signal need ensure LTE network covering in it can be found that, it is also desirable to ensure under no network coverage situation
It was found that.
Mesh first three typically finds scene：Found in cell, minizone is found and the discovery without the network coverage.For small
Situation about being found in area, UE obtain synchronous with network side, and UE can be obtained mutual according to each synchronous with network side
Between it is synchronous so as to mutually be found in the discovery resource of synchronization, it is found that resource used can also obtain from network side.
In the case of minizone is found, due to being probably nonsynchronous between two cells, if according to each same with network side
Step, then be probably nonsynchronous between two UE, can not directly be found, while UE may not also know the hair used in adjacent cell
Existing resource.Equally it is asynchronous between UE, it is necessary to which acquisition synchronously, could be found first in the case of without network.General nothing
Under network condition, a cluster head is had in cluster adjacent to one another to send synchronizing signal at one, so that the UE of surrounding can lead to
Cross the synchronization gain with it to be mutually in step, and then found.Here cluster head is in the effect of synchronization aspects and when having the network coverage
The effect of base station is similar.
To sum up, during the minizone when there is the network coverage mutually finds scene, if be between neighbor cell it is nonsynchronous,
The UE for belonging to different districts can not be by mutual synchronous of the synchronization gain with network side, therefore the UE of different districts can not be examined
Measure mutual discovery signal.When without the network coverage, the UE in different clusters is also nonsynchronous, therefore the UE in different clusters
Mutual discovery signal can not be detected.
The content of the invention
The embodiment of the present invention provides a kind of discovery signal detecting method and equipment, for solving finding terminal and be found
When terminal belongs to nonsynchronous two cells or finds terminal and be found terminal not in the network coverage, terminal is found such as
The problem of what detection is found the discovery signal of terminal.
One kind finds signal detecting method, and this method includes：
It was found that the synchronizing signal of terminal detection adjacent domain, the adjacent domain is adjacent cell or adjacent clusters；
Make it was found that choosing all or part of adjacent domain in adjacent domain corresponding to terminal from each synchronizing signal detected
For target area；
It was found that terminal determines that the terminal in each target area sends physical resource Information used in discovery signal；
It was found that terminal determines the target area for each target area according to the down-going synchronous timing information of the target area
The discovery signal transmission timing information of interior terminal, according to the terminal in the discovery signal transmission timing information and the target area
Send the discovery for finding that physical resource Information used in signal determines physical resource, and detection terminal is sent on the physical resource
Signal.
A kind of terminal, the terminal include：
Synchronous signal detection unit, for detecting the synchronizing signal of adjacent domain, the adjacent domain be adjacent cell or
Adjacent clusters；
Unit is chosen in target area, for choosing whole or portion from adjacent domain corresponding to each synchronizing signal detected
Divide adjacent domain as target area；
Physical resource determining unit, physics money used in signal is found for determining that the terminal in each target area is sent
Source information；
It was found that detecting signal unit, for for each target area, according to the down-going synchronous timing information of the target area
The discovery signal transmission timing information of the terminal in the target area is determined, according to the discovery signal transmission timing information and the mesh
Terminal in mark region, which is sent, finds that physical resource Information used in signal determines physical resource, is detected on the physical resource
The discovery signal that terminal is sent.
In scheme provided in an embodiment of the present invention, the synchronizing signal of terminal detection adjacent domain is found, it is each from what is detected
All or part of adjacent domain is chosen in adjacent domain corresponding to synchronizing signal as target area, is determined in each target area
Terminal, which is sent, finds physical resource Information used in signal, for each target area, according to the down-going synchronous of the target area
Timing information determines the discovery signal transmission timing information of the terminal in the target area, is believed according to the discovery signal transmission timing
Terminal in breath and the target area, which is sent, finds that physical resource Information used in signal determines physical resource, is provided in the physics
The discovery signal that the terminal in the target area is found terminal transmission is detected on source.Using this programme, find terminal and
It is found terminal and belongs to nonsynchronous two cells or discovery terminal with when being found terminal not under the network coverage, finds
The synchronizing signal of cell obtains being found the discovery signal transmission timing of terminal where terminal can be found terminal by detection
Information, and then the physical resource according to used in discovery signal transmission timing information determination is found terminal transmission discovery signal,
And detection is found the discovery signal of terminal transmission on the physical resource, it is seen that this programme, which solves, to be found terminal and sent out
When existing terminal belongs to nonsynchronous two cells or finds terminal and be found terminal not in the network coverage, terminal is found
The problem of how detecting the discovery signal for being found terminal.
Brief description of the drawings
Fig. 1 is the data flow diagram that terminal communicates in cellular network of the prior art；
Fig. 2 is the data flow diagram of the direct-connected communication of terminal of the prior art；
Fig. 3 has found schematic diagram for UE in the cell in the embodiment of the present invention；
Fig. 4 is that the minizone UE in the embodiment of the present invention has found schematic diagram；
Fig. 5 is that the UE without the network coverage in the embodiment of the present invention has found schematic diagram；
Fig. 6 is method flow schematic diagram provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram for finding the physical resource used in signal that different districts UE is determined in the embodiment of the present invention；
Fig. 8 is device structure schematic diagram provided in an embodiment of the present invention.
Embodiment
Three kinds of typical discovery scenes：Find that scene, minizone as shown in Figure 4 find field in cell as shown in Figure 3
Scape and the discovery scene without the network coverage as shown in Figure 5.
In order to solve to belong to nonsynchronous two cells or find terminal and to be sent out finding terminal and be found terminal
When existing terminal is not in the network coverage, the problem of how terminal detects the discovery signal for being found terminal is found, the present invention is in fact
Apply example and a kind of discovery signal detecting method is provided.
Referring to Fig. 6, discovery signal detecting method provided in an embodiment of the present invention, comprise the following steps：
Step 60：It was found that the synchronizing signal of terminal detection adjacent domain, the adjacent domain is adjacent cell or adjacent clusters；This
In, adjacent domain refers to the region in the distance of the discovery terminal surrounding and the discovery terminal within the specific limits, specific to judge
Whether standard is can detect synchronizing signal, if the discovery terminal is able to detect that the synchronizing signal in a region, the region
For adjacent domain.
Here, when adjacent domain is adjacent cell, synchronizing signal can include master sync signal (Primary
Synchronization Signal, PSS) and auxiliary synchronous signals (Secondary Synchronization Signal,
SSS).When the adjacent domain is adjacent cell, the synchronizing signal of adjacent cell is the base station transmission of the adjacent cell, at this
When adjacent domain is adjacent clusters, the synchronizing signal of adjacent clusters is the interior terminal transmission as cluster head of the adjacent clusters.Cluster refer to by
The region that one group of terminal mutually adjacent on synchronization and position is formed on time, the terminal that synchronizing signal is sent in the cluster of configuration are
The cluster head of the cluster.It was found that terminal can determine corresponding adjacent domain according to the synchronizing signal of each adjacent domain detected respectively
Down-going synchronous timing information, the down-going synchronous timing information comprise at least the information of subframe original position, can also include subframe
The information such as numbering, frame number.
Step 61：It was found that chosen in adjacent domain corresponding to terminal from each synchronizing signal detected all or part of neighbouring
Region is as target area；
Step 62：It was found that terminal determines that the terminal in each target area sends physical resource letter used in discovery signal
Breath；
Step 63：It was found that terminal, for each target area, being determined according to the down-going synchronous timing information of the target area should
The discovery signal transmission timing information of terminal in target area, according to the discovery signal transmission timing information and the target area
Interior terminal, which is sent, finds that physical resource Information used in signal determines physical resource, and detection terminal is sent out on the physical resource
The discovery signal sent.
Specifically, in step 61, selected part in adjacent domain corresponding to terminal from each synchronizing signal detected is found
Adjacent domain can be as follows as target area, specific implementation：
It was found that terminal is according to corresponding to the receiving intensity of each synchronizing signal detected or each synchronizing signal detected
Downlink reference signal receiving power (RSRP) intensity of adjacent domain, according to target area selection principle set in advance, from inspection
Selected part adjacent domain is as target area in adjacent domain corresponding to each synchronizing signal measured.
For example, above-mentioned target area selection principle can be：
At least one adjacent domain of synchronous signal receiver maximum intensity or descending RSRP maximum intensities is chosen as target
Region；Or
Choose synchronous signal receiver intensity or descending RSRP intensity is more than the adjacent domain of predetermined threshold value as target area
Domain, the threshold value can be preset or the network side equipment of cell or the cluster head of place cluster are referred to where discovery terminal
Show；The predetermined threshold value is the numerical value not less than 0；Or
Choose the adjacent domain and synchronous signal receiver intensity and the adjacent domain of synchronous signal receiver maximum intensity
Adjacent domain of the difference of synchronous signal receiver intensity in setting range is as target area；Or choose descending RSRP intensity most
Neighbour of the difference of the descending RSRP intensity of big adjacent domain and descending RSRP intensity and the adjacent domain in setting range
Near field is as target area；The setting range specifically can be in some numerical intervals, or less than some numerical value, or be not more than
Some numerical value etc.；Or the setting range can be preset or the network side equipment of cell or institute where discovery terminal
Indicated in the cluster head of cluster；Or
The difference for choosing the down-going synchronous timing of serving cell or place cluster of the down-going synchronous timing with finding terminal exists
Adjacent domain in setting range is as target area；The setting range specifically can be in some numerical intervals, or less than certain
Individual numerical value, or no more than some numerical value etc.；The setting range can be preset or the network by discovery terminal place cell
The cluster head of side apparatus or place cluster is indicated.
Specifically, in step 62, it is found that terminal determines that the terminal in each target area is sent and finds thing used in signal
Resource information is managed, is specifically included at least one in following scheme：
Scheme one：It was found that one or more regions that terminal receives the serving cell of itself or the cluster head of place cluster is sent
Interior terminal sends the configured information for finding physical resource used in signal, is obtained from the configured information in each target area
Terminal send find signal used in physical resource Information；
In this programme, the identification information comprising one or more regions and each identification information pair in above-mentioned configured information
The terminal answered, which is sent, finds physical resource Information used in signal；The terminal in each target area is obtained from the configured information
Send and find physical resource Information used in signal, specific implementation can be as follows：
The identification information of corresponding target area is obtained from the synchronizing signal of each target area detected, from what is received
Terminal corresponding to identification information that each target area is read in configured information sends and finds physical resource Information used in signal.
Scheme two：It was found that terminal receives corresponding target area respectively according to the down-going synchronous timing information of each target area
Downlink broadcast information, the terminal in corresponding target area obtained from the downlink broadcast information received send and find signal institute
The physical resource Information used；
Specifically, find that terminal according to the down-going synchronous timing information of each target area, receives corresponding target area respectively
Downlink broadcast information, specific implementation can be as follows：
It was found that terminal is respectively according to down-going synchronous timing information and Physical Broadcast Channel (PBCH) information of each target area,
It is determined that the resource location of the downlink broadcast information of corresponding target area is received, according to the resource location and the corresponding target detected
The identification information (identification information is used for the demodulation of broadcast channel) of target area in the synchronizing signal in region, receives corresponding mesh
Mark the downlink broadcast information in region.
Scheme three：It was found that terminal, by physical resource Information set in advance, the terminal being defined as in each target area is sent
It was found that physical resource Information used in signal.
One-scheme of scheme three can be used alone, i.e., obtains complete physical resource Information by one of which scheme,
Can be that multiple schemes are used in combination so as to obtain complete physical resource Information, such as partial physical resource Information (such as
Subframe) it can be obtained by scheme one, the physical resource Information of other parts is obtained (such as bandwidth) by scheme three.
Specifically, in step 63, the end in the target area is determined according to the down-going synchronous timing information of the target area
The discovery signal transmission timing information at end, specific implementation can be as follows：
The discovery signal for the terminal down-going synchronous timing information of the target area being defined as in the target area is sent
Timing information；Or
According to the down-going synchronous timing information of the target area and timing offset set in advance, the target area is obtained
The discovery signal transmission timing information of interior terminal, such as, the subframe in the down-going synchronous timing information of the target area is risen
Beginning, position was added with the timing offset, obtained finding the subframe original position of signal, the i.e. target area in the target area
Interior terminal finds signal transmission timing packet containing the subframe original position for finding signal in the target area.The timing is inclined
Shifting amount may be greater than 0 or the numerical value less than 0, and the timing offset can be preset or the cell where discovery terminal
The cluster head of network side equipment or place cluster is indicated.
Specifically, find that signal transmission timing information comprises at least the information of subframe original position；Physical resource Information is extremely
Include subframe numbers and bandwidth less；In step 63, sent out according to the terminal in the discovery signal transmission timing information and the target area
Send and find that physical resource Information used in signal determines physical resource, specific implementation can be as follows：
On the basis of the subframe original position included by the discovery signal transmission timing information, the end in the target area is determined
End transmission finds the sub-frame set corresponding to the subframe numbers that physical resource Information used in signal includes, by the sub-frame set
The bandwidth that includes of the physical resource Information in Physical Resource Block (PRB), the terminal being defined as in the target area sends hair
Physical resource used in existing signal.For example, the terminal in the target area, which is sent, finds physical resource letter used in signal
It is { 3,4,5 } to cease the sub-frame set corresponding to the subframe numbers that include, and the terminal in the target area sends discovery signal and used
The a width of 10-100MHz of band that includes of physical resource Information, then by the PRB in the 10-100MHz in subframe 3, subframe 4
The PRB in the 10-100MHz in PRB and subframe 5 in 10-100MHz, the UE being defined as in the target area, which is sent, to be found
The physical resource that signal uses.
Down-going synchronous timing information and discovery signal transmission timing information can also include the letter such as subframe number and frame number
Breath, send and find that the physical resource Information that signal uses can also include the information such as transmission cycle.
With reference to specific embodiment, the present invention will be described：
Embodiment one：
In the present embodiment, it is assumed that UE A is have found UE, and to be found UE, the respective serving cells of UE A and UE B divide UE B
Not Wei cell A and cell B, and cell A and B are nonsynchronous.
Step 1：UE B according to the down-going synchronous timing acquisition of its serving cell find signal transmission timing (it is assumed here that
It was found that signal transmission timing and the timing of serving cell B down-going synchronous have T skew), and from its serving cell B downlink broadcast
Obtain to send in signal and find physical resource Information used in signal, including subframe index, transmission cycle and bandwidth information.UE
B selects resource unit in the bandwidth corresponding to the subframe index in subframe, and according to the hair on the resource unit of selection
The transmission of cycle is sent to find signal.
Step 2：The downlink synchronous signal that each cell is sent around UE A detections, believes according to the down-going synchronous detected
Number obtain the respective down-going synchronous timing information of peripheral cell A, B, C, D, including cell A, B, C, D subframe original position (when
Carve) and subframe number and frame number information.The process of the step and the mistake that multiple cell synchronizing signal is detected in current LTE system
Journey is similar.
Step 3：UE A are from cell A, B, C, D, the descending RSRP intensity of these cells obtained according to measurement, choosing
Cell of the RSRP intensity higher than some preset value is selected as Target cell, it is assumed that the Target cell of selection is cell A, B, C.
Step 4：UE A believe according to bandwidth included in the down-going synchronous timing information and PBCH of each Target cell etc. respectively
Breath, it is determined that receiving the resource location of the downlink broadcast information of corresponding Target cell.And obtained when combining synchronization signal detection each
The cell ID (Cell ID) of Target cell, receive and detect the downlink broadcast information of each Target cell.UE A are small from each target
The UE in corresponding Target cell is obtained in the downlink broadcast information in area and sends physical resource Information used in discovery signal, including
Subframe index, bandwidth information, send cycle etc..
Step 5：For each Target cell A, B, C, UE is somebody's turn to do according to the down-going synchronous timing information of the Target cell
The discovery signal transmission timing information of UE in Target cell is (assuming that find signal transmission timing and the down-going synchronous of serving cell
Timing has T skew).UE A according in the Target cell UE send find signal used in physical resource Information (including
Subframe index, send cycle and bandwidth information), and the discovery signal transmission timing information of the UE in the Target cell, it is determined that
UE in the Target cell sends the physical resource for finding that signal uses, and is detected on the physical resource in the Target cell
The discovery signal that UE is sent, by taking Fig. 7 as an example.
Step 6：UEs of the UE A in cell B sends and detects what UE B were sent on the physical resource that discovery signal uses
It was found that signal, carries out UE B identification.
Embodiment two：
In the present embodiment, it is assumed that find UE A and be found UE B all outside the network coverage, each Autonomous tests of UE A and UE B
To two different cluster A, B synchronizing signal, carried out with other UE in cluster A, B synchronous.
Step 1：UE B are using the down-going synchronous timing of cluster where it as signal transmission timing is found, in predefined thing
Manage periodically to send in resource and find signal.Predefined physical resource includes findings that subframe used in signal and shared
Bandwidth, and be that identical predefines in UE A and UE B.
Step 2：The synchronizing signal that UE around UE A detections in each cluster as cluster head is sent, it is same according to what is detected
Step signal obtains the down-going synchronous timing information of corresponding cluster.The process of the step is synchronous with detecting multiple cell in current LTE system
The process of signal is similar.
Step 3：In cluster corresponding to UE A from each synchronizing signal detected, the cluster of selected section is as target cluster.Specifically
Principle is strong for the cluster and synchronous signal receiver intensity and the synchronous signal receiver of the cluster of selection synchronous signal receiver maximum intensity
The cluster that the difference of degree is no more than setting threshold value defines (for example being 6dB) at UE ends in advance as target cluster, the threshold value.Assuming that
Target cluster only includes cluster A and B.
Step 4：Predefined physical resource Information is sent and finds that signal uses by UE A as UE in each target cluster
Physical resource Information, that is, assume fixation subframe and bandwidth.
Step 5：For each target cluster, UE A are using the down-going synchronous timing information of the target cluster as in the target cluster
UE discovery signal transmission timing, and the physical resource Information with reference to used in UE in the target cluster sends discovery signal, including
Subframe and bandwidth etc., determine that the UE in the target cluster sends the physical resource for finding that signal uses, and examined on the physical resource
The discovery signal that the UE surveyed in the target cluster is sent, the method for the specific physical resource for determining discovery signal and using are similar with Fig. 7.
Step 6：UEs of the UE A in cluster B sends the discovery letter that UE B are detected on the physical resource that discovery signal uses
Number, carry out UE B identification.
Referring to Fig. 8, the embodiment of the present invention provides a kind of terminal, and the terminal includes：
Synchronous signal detection unit 80, for detecting the synchronizing signal of adjacent domain, the adjacent domain is adjacent cell
Or adjacent clusters；
Target area choose unit 81, for from adjacent domain corresponding to each synchronizing signal detected choose all or
Part adjacent domain is as target area；
Physical resource determining unit 82, physics used in signal is found for determining that the terminal in each target area is sent
Resource information；
It was found that detecting signal unit 83, for for each target area, being believed according to the timing of the down-going synchronous of the target area
Breath determines the discovery signal transmission timing information of the terminal in the target area, according to the discovery signal transmission timing information and is somebody's turn to do
Terminal in target area, which is sent, finds that physical resource Information used in signal determines physical resource, is examined on the physical resource
Survey the discovery signal that terminal is sent.
Further, the target area is chosen unit 81 and is used for：
According to adjacent domain corresponding to the receiving intensity of each synchronizing signal detected or each synchronizing signal detected
Downlink reference signal receiving power RSRP intensity, it is each same from what is detected according to target area selection principle set in advance
Selected part adjacent domain is as target area in adjacent domain corresponding to step signal.
Further, the target area selection principle that the target area chooses that unit 81 uses is：
At least one adjacent domain of synchronous signal receiver maximum intensity or descending RSRP maximum intensities is chosen as target
Region；Or
Choose synchronous signal receiver intensity or descending RSRP intensity is more than the adjacent domain of predetermined threshold value as target area
Domain；Or
Choose the adjacent domain of synchronous signal receiver intensity or descending RSRP maximum intensities and same with the adjacent domain
Adjacent domain of the difference of step signal receiving strength or descending RSRP intensity in setting range is as target area；Or
The difference of the down-going synchronous timing of the serving cell or place cluster with finding terminal is chosen in setting range
Adjacent domain is as target area.
Further, the physical resource determining unit 82 includes the first determining unit, the second determining unit, the 3rd determination
It is at least one in unit：
First determining unit, one or more of the cluster head transmission of serving cell or place cluster for receiving itself
Terminal in individual region sends the configured information for finding physical resource used in signal, and each target is obtained from the configured information
Terminal in region, which is sent, finds physical resource Information used in signal；
Second determining unit, for according to the down-going synchronous timing information of each target area, receiving corresponding mesh respectively
The downlink broadcast information in region is marked, the terminal obtained from the downlink broadcast information received in corresponding target area sends discovery
Physical resource Information used in signal；
3rd determining unit, for by physical resource Information set in advance, the end being defined as in each target area
End, which is sent, finds physical resource Information used in signal.
Further, first determining unit is used for：
The terminal received in one or more regions of the cluster head transmission of itself serving cell or place cluster sends hair
The configured information of physical resource used in existing signal, in the configured information identification information comprising one or more regions and
Terminal corresponding to each identification information, which is sent, finds physical resource Information used in signal；
The identification information of corresponding target area is obtained from the synchronizing signal of each target area detected, from the instruction
Terminal corresponding to identification information that each target area is read in information sends and finds physical resource Information used in signal.
Further, second determining unit is used for：
Respectively according to the down-going synchronous timing information of each target area and Physical Broadcast Channel PBCH information, it is determined that reception pair
The resource location of the downlink broadcast information of target area is answered, according to the synchronization of the resource location and the corresponding target area detected
The identification information of target area in signal, the downlink broadcast information of corresponding target area is received, from the downlink broadcast received
The terminal in corresponding target area is obtained in information and sends physical resource Information used in discovery signal.
Further, the discovery detecting signal unit 83 is used for：
The discovery signal for the terminal down-going synchronous timing information of the target area being defined as in the target area is sent
Timing information；Or
According to the down-going synchronous timing information of the target area and timing offset set in advance, the target area is obtained
The discovery signal transmission timing information of interior terminal.
Further, the discovery detecting signal unit 83 is used for：
The information of subframe original position, the physical resource Information are comprised at least in the discovery signal transmission timing information
During including at least subframe numbers and bandwidth, on the basis of the subframe original position included by the discovery signal transmission timing information, really
Terminal transmission in the fixed target area finds the son corresponding to the subframe numbers that physical resource Information used in signal includes
Frame set, the Physical Resource Block PRB in bandwidth that the physical resource Information in the sub-frame set is included, it is defined as physics money
Source.
To sum up, beneficial effects of the present invention include：
In scheme provided in an embodiment of the present invention, the synchronizing signal of terminal detection adjacent domain is found, it is each from what is detected
All or part of adjacent domain is chosen in adjacent domain corresponding to synchronizing signal as target area, is determined in each target area
Terminal, which is sent, finds physical resource Information used in signal, for each target area, according to the down-going synchronous of the target area
Timing information determines the discovery signal transmission timing information of the terminal in the target area, is believed according to the discovery signal transmission timing
Terminal in breath and the target area, which is sent, finds that physical resource Information used in signal determines physical resource, is provided in the physics
The discovery signal that the terminal in the target area is found terminal transmission is detected on source.Using this programme, find terminal and
When being found terminal and belonging to nonsynchronous two cells, find terminal terminal can be found by detection where cell synchronization
Signal obtains being found the discovery signal transmission timing information of terminal, and then determines to be sent out according to discovery signal transmission timing information
Existing terminal, which is sent, finds physical resource used in signal, and detection is found the discovery letter of terminal transmission on the physical resource
Number；When finding terminal and being found terminal not under the network coverage, it is found that terminal can be found terminal institute by detection
Obtain being found the discovery signal transmission timing information of terminal in the synchronizing signal of cluster, and then according to discovery signal transmission timing letter
Breath determination is found terminal and sends physical resource used in discovery signal, and detection is found terminal hair on the physical resource
The discovery signal sent, it is seen that this programme, which solves, to be found terminal and be found terminal and belong to nonsynchronous two cells or hair
How existing terminal and when being found terminal in the network coverage, discovery terminal detect asking for the discovery signal that is found terminal
Topic.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (16)
1. one kind finds signal detecting method, it is characterised in that this method includes：
It was found that the synchronizing signal of terminal detection adjacent domain, the adjacent domain is adjacent cell or adjacent clusters；
It was found that all or part of adjacent domain is chosen in adjacent domain corresponding to terminal from each synchronizing signal detected as mesh
Mark region；
It was found that terminal determines that the terminal in each target area sends physical resource Information used in discovery signal；
It was found that terminal is determined in the target area for each target area according to the down-going synchronous timing information of the target area
The discovery signal transmission timing information of terminal, sent according to the terminal in the discovery signal transmission timing information and the target area
It was found that physical resource Information determines physical resource used in signal, the discovery that detection terminal is sent on the physical resource is believed
Number.
2. the method as described in claim 1, it is characterised in that corresponding to the discovery terminal from each synchronizing signal detected
Selected part adjacent domain specifically includes as target area in adjacent domain：
It was found that terminal is neighbouring according to corresponding to the receiving intensity of each synchronizing signal detected or each synchronizing signal detected
The downlink reference signal receiving power RSRP intensity in region, according to target area selection principle set in advance, from what is detected
Selected part adjacent domain is as target area in adjacent domain corresponding to each synchronizing signal.
3. method as claimed in claim 2, it is characterised in that the target area selection principle is：
At least one adjacent domain of synchronous signal receiver maximum intensity or descending RSRP maximum intensities is chosen as target area；
Or
Choose synchronous signal receiver intensity or descending RSRP intensity is more than the adjacent domain of predetermined threshold value as target area；Or
Person,
Choose the adjacent domain of synchronous signal receiver intensity or descending RSRP maximum intensities and letter synchronous with the adjacent domain
Adjacent domain of the difference of number receiving intensity or descending RSRP intensity in setting range is as target area；Or
The difference for choosing the down-going synchronous timing of the serving cell or place cluster with finding terminal is neighbouring in setting range
Region is as target area.
4. the method as described in claim 1, it is characterised in that described to find that terminal determines that the terminal in each target area is sent
It was found that physical resource Information used in signal, is specifically included at least one in following scheme：
Scheme one：It was found that in one or more regions that terminal receives the serving cell of itself or the cluster head of place cluster is sent
Terminal sends the configured information for finding physical resource used in signal, and the end in each target area is obtained from the configured information
End, which is sent, finds physical resource Information used in signal；
Scheme two：It was found that terminal is received under corresponding target area respectively according to the down-going synchronous timing information of each target area
Row broadcast message, the terminal transmission obtained from the downlink broadcast information received in corresponding target area find that signal is used
Physical resource Information；
Scheme three：It was found that terminal, by physical resource Information set in advance, the terminal being defined as in each target area sends discovery
Physical resource Information used in signal.
5. method as claimed in claim 4, it is characterised in that the mark in one or more regions is included in the configured information
Information and terminal corresponding to each identification information, which are sent, finds physical resource Information used in signal；It is described from the configured information
Physical resource Information used in the middle terminal transmission discovery signal obtained in each target area, is specifically included：
The identification information of corresponding target area is obtained from the synchronizing signal of each target area detected, from the configured information
The terminal that the identification information of middle each target area of reading is corresponding sends physical resource Information used in discovery signal.
6. method as claimed in claim 4, it is characterised in that described to find terminal respectively according to the descending same of each target area
Timing information is walked, the downlink broadcast information of corresponding target area is received, specifically includes：
It was found that terminal is respectively according to the down-going synchronous timing information of each target area and Physical Broadcast Channel PBCH information, it is determined that connecing
The resource location of the downlink broadcast information of corresponding target area is received, according to the resource location and the corresponding target area detected
The identification information of target area in synchronizing signal, receive the downlink broadcast information of corresponding target area.
7. the method as described in claim 1, it is characterised in that the down-going synchronous timing information according to the target area is true
The discovery signal transmission timing information of terminal in the fixed target area, is specifically included：
The discovery signal transmission timing for the terminal down-going synchronous timing information of the target area being defined as in the target area
Information；Or
According to the down-going synchronous timing information of the target area and timing offset set in advance, obtain in the target area
The discovery signal transmission timing information of terminal.
8. the method as described in any in claim 1-7, it is characterised in that the discovery signal transmission timing information is at least wrapped
The information of enclosed tool frame start position；The physical resource Information comprises at least subframe numbers and bandwidth；
The terminal according in the discovery signal transmission timing information and the target area, which is sent, finds thing used in signal
Reason resource information determines physical resource, specifically includes：
On the basis of the subframe original position included by the discovery signal transmission timing information, the terminal hair in the target area is determined
Send and find sub-frame set used in signal corresponding to the subframe numbers that include of physical resource Information, by the sub-frame set should
Physical Resource Block PRB in the bandwidth that physical resource Information includes, is defined as physical resource.
9. a kind of terminal, it is characterised in that the terminal includes：
Synchronous signal detection unit, for detecting the synchronizing signal of adjacent domain, the adjacent domain is adjacent cell or neighbouring
Cluster；
Unit is chosen in target area, all or part of adjacent for being chosen from adjacent domain corresponding to each synchronizing signal detected
Near field is as target area；
Physical resource determining unit, physical resource letter used in signal is found for determining that the terminal in each target area is sent
Breath；
It was found that detecting signal unit, for for each target area, being determined according to the down-going synchronous timing information of the target area
The discovery signal transmission timing information of terminal in the target area, according to the discovery signal transmission timing information and the target area
Terminal in domain, which is sent, finds that physical resource Information used in signal determines physical resource, the detection terminal on the physical resource
The discovery signal of transmission.
10. terminal as claimed in claim 9, it is characterised in that choose unit and be used in the target area：
According under adjacent domain corresponding to the receiving intensity of each synchronizing signal detected or each synchronizing signal detected
Row Reference Signal Received Power RSRP intensity, according to target area selection principle set in advance, from each synchronous letter detected
Selected part adjacent domain is as target area in adjacent domain corresponding to number.
11. terminal as claimed in claim 10, it is characterised in that choose the target area choosing that unit uses in the target area
The principle is taken to be：
At least one adjacent domain of synchronous signal receiver maximum intensity or descending RSRP maximum intensities is chosen as target area；
Or
Choose synchronous signal receiver intensity or descending RSRP intensity is more than the adjacent domain of predetermined threshold value as target area；Or
Person,
Choose the adjacent domain of synchronous signal receiver intensity or descending RSRP maximum intensities and letter synchronous with the adjacent domain
Adjacent domain of the difference of number receiving intensity or descending RSRP intensity in setting range is as target area；Or
The difference for choosing the down-going synchronous timing of the serving cell or place cluster with finding terminal is neighbouring in setting range
Region is as target area.
12. terminal as claimed in claim 9, it is characterised in that the physical resource determining unit include the first determining unit,
It is at least one in second determining unit, the 3rd determining unit：
First determining unit, one or more areas of the cluster head transmission of serving cell or place cluster for receiving itself
Terminal in domain sends the configured information for finding physical resource used in signal, and each target area is obtained from the configured information
Interior terminal, which is sent, finds physical resource Information used in signal；
Second determining unit, for according to the down-going synchronous timing information of each target area, receiving corresponding target area respectively
The downlink broadcast information in domain, the terminal in corresponding target area is obtained from the downlink broadcast information received and sends discovery signal
Used physical resource Information；
3rd determining unit, for by physical resource Information set in advance, the terminal being defined as in each target area to be sent out
Send and find physical resource Information used in signal.
13. terminal as claimed in claim 12, it is characterised in that first determining unit is used for：
The terminal received in one or more regions of the cluster head transmission of itself serving cell or place cluster sends discovery letter
The configured information of physical resource used in number, the identification information comprising one or more regions and each mark in the configured information
Know terminal corresponding to information and send physical resource Information used in discovery signal；
The identification information of corresponding target area is obtained from the synchronizing signal of each target area detected, from the configured information
The terminal that the identification information of middle each target area of reading is corresponding sends physical resource Information used in discovery signal.
14. terminal as claimed in claim 12, it is characterised in that second determining unit is used for：
Respectively according to the down-going synchronous timing information of each target area and Physical Broadcast Channel PBCH information, it is determined that receiving corresponding mesh
The resource location of the downlink broadcast information in region is marked, according to the resource location and the synchronizing signal of the corresponding target area detected
In target area identification information, the downlink broadcast information of corresponding target area is received, from the downlink broadcast information received
The middle terminal obtained in corresponding target area, which is sent, finds physical resource Information used in signal.
15. the terminal stated such as claim 9, it is characterised in that the discovery detecting signal unit is used for：
The discovery signal transmission timing for the terminal down-going synchronous timing information of the target area being defined as in the target area
Information；Or
According to the down-going synchronous timing information of the target area and timing offset set in advance, obtain in the target area
The discovery signal transmission timing information of terminal.
16. the terminal as described in any in claim 9-15, it is characterised in that the discovery detecting signal unit is used for：
The information of subframe original position is comprised at least in the discovery signal transmission timing information, the physical resource Information is at least
Including subframe numbers and during bandwidth, on the basis of the subframe original position included by the discovery signal transmission timing information, institute is determined
The subframe collection corresponding to subframe numbers that physical resource Information used in stating the transmission discovery signal of the terminal in target area includes
Close, the Physical Resource Block PRB in bandwidth that the physical resource Information in the sub-frame set is included, be defined as physical resource.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226578.4A CN104244316B (en) | 2013-06-07 | 2013-06-07 | It was found that signal detecting method and equipment |
| PCT/CN2014/079314 WO2014194850A1 (en) | 2013-06-07 | 2014-06-06 | Method and device for detecting discovery signal |
| TW103119650A TWI545981B (en) | 2013-06-07 | 2014-06-06 | Discovery of signal detection methods and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226578.4A CN104244316B (en) | 2013-06-07 | 2013-06-07 | It was found that signal detecting method and equipment |
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| Publication Number | Publication Date |
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| CN104244316A CN104244316A (en) | 2014-12-24 |
| CN104244316B true CN104244316B (en) | 2018-01-19 |
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| CN201310226578.4A Active CN104244316B (en) | 2013-06-07 | 2013-06-07 | It was found that signal detecting method and equipment |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104244316B (en) |
| TW (1) | TWI545981B (en) |
| WO (1) | WO2014194850A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105101387B (en) * | 2014-05-06 | 2019-04-02 | 电信科学技术研究院 | A kind of synchronization processing method and user equipment |
| US10512033B2 (en) * | 2015-01-29 | 2019-12-17 | Qualcomm Incorporated | Timing information for discovery in unlicensed spectrum |
| WO2016208285A1 (en) * | 2015-06-22 | 2016-12-29 | ソニー株式会社 | Communication control device, communication control method, network switch, pathway control method, and communication system |
| CN108243436B (en) * | 2016-12-26 | 2021-01-05 | 展讯通信（上海）有限公司 | Time offset calibration method and device and mobile terminal |
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| CN102598777A (en) * | 2009-11-05 | 2012-07-18 | 瑞典爱立信有限公司 | Handover measurements in a mobile communication system |
| CN102857901A (en) * | 2012-09-12 | 2013-01-02 | 中兴通讯股份有限公司 | Device discovery method, device discovery processing method and device discovering processing device |
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| KR101255075B1 (en) * | 2009-02-27 | 2013-04-15 | 한국전자통신연구원 | method and device for transfering inter-RAT scanning triger information |
| WO2013049959A1 (en) * | 2011-10-02 | 2013-04-11 | Renesas Mobile Corporation | Signaling for device-to-device wireless communication |
| CN103108389A (en) * | 2011-11-15 | 2013-05-15 | 中兴通讯股份有限公司 | Communication method and communication system from device to device and user devices |
| CN102547984B (en) * | 2012-02-23 | 2015-03-11 | 华为技术有限公司 | Method and device for paging in device-to-device communication |
| CN102780993B (en) * | 2012-08-20 | 2015-04-15 | 哈尔滨工业大学 | Terminal D2D (device-to-device) cooperation relay communication implementation method in TD-LTE-A (time division-long term evolution-advanced) system |
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| CN102598777A (en) * | 2009-11-05 | 2012-07-18 | 瑞典爱立信有限公司 | Handover measurements in a mobile communication system |
| CN102857901A (en) * | 2012-09-12 | 2013-01-02 | 中兴通讯股份有限公司 | Device discovery method, device discovery processing method and device discovering processing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201448641A (en) | 2014-12-16 |
| WO2014194850A1 (en) | 2014-12-11 |
| CN104244316A (en) | 2014-12-24 |
| TWI545981B (en) | 2016-08-11 |
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