CN105376770B - A kind of signaling method, detection method and relevant device - Google Patents
A kind of signaling method, detection method and relevant device Download PDFInfo
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- CN105376770B CN105376770B CN201410438500.3A CN201410438500A CN105376770B CN 105376770 B CN105376770 B CN 105376770B CN 201410438500 A CN201410438500 A CN 201410438500A CN 105376770 B CN105376770 B CN 105376770B
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Abstract
The invention discloses a kind of signaling method, detection method and relevant devices, are the signals of itself with target is detected not to avoid user equipment, reduce the complexity of signal detection and processing.Specifically: the first UE obtains the identification information of the 2nd UE；First UE generates the first particular sequence according to the identification information of the 2nd UE and carries the first signal of first particular sequence；First UE sends first signal, so that the 2nd UE detects first signal based on first particular sequence generated according to the identification information of itself.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of signaling methods, detection method and relevant device.
Background technique
In traditional cellular telecommunication art, the data communication process between two terminals is as shown in Figure 1, between two terminals
The business such as voice-and-data interacted by respectively resident base station (ordinary base station or evolved base station) and core net.
Device-to-device (Device-to-Device, D2D) communication, i.e. terminal direct connection technology, refer to neighbouring terminal
(UE) it can be carried out data transmission in short range by direct connected link, not need central node (such as base station) forwarding, such as
Shown in Fig. 2.
D2D communication has the advantage that
1, terminal carrying out direct communication in close range mode can realize higher message transmission rate, lower time delay and lower function
Consumption；
2, it using the short distance feature of communication terminal widely distributed in network and D2D communication link, can efficiently use
Frequency spectrum resource；
3, the local data that the direct communication mode of D2D can adapt to such as wireless end-to-end (P2P) business shares demand,
The data service for having flexible adaptation ability is provided；
4, D2D direct communication can utilize substantial amounts in network and widely distributed communication terminal is to expand covering for network
Lid range.
Long term evolution (LTE) D2D technology refer to work in LTE authorized spectrum band, the D2D that is controlled by LTE network discovery
And communication process.On the one hand LTE D2D can give full play to the advantage of D2D technology, while LTE network control can also overcome biography
Some problems existing for D2D technology of uniting, such as interfere uncontrollable etc..LTE D2D makes LTE technology from simple wireless mobile cellular
Direction evolution of the communication technology towards " general interconnection technique (Universal Connectivity Technology) ".
LTE D2D technology includes that D2D discovery and D2D communicate two aspects, and wherein D2D discovery refers to one in D2D communication
A UE goes to find neighbouring other UE.Discovery at least following two mode in D2D communication between UE:
1, it directly finds mode: being found UE and send discovery signal, other UE are by detection discovery signal discovery and identify
This is found UE.
2, request response mode: discovery UE sends request discovery signal, after other UE detect request discovery signal, really
Whether fixed itself is requested target UE, or whether determination itself allows to be found, and other UE are true according to judging result
Fixed whether to send response signal, discovery UE has found other UE by detection response signal.
Wherein, for the discovery mode of request response, UE needs to detect the request that other UE are sent in discovery resource pool
It was found that signal or response signal.If a UE neighbouring a number of other UE send request discovery signal (or response letter
Number), which may receive request discovery signal (or response signal) that multiple other UE are sent, if but it is multiple its
The requested target UE of request discovery signal (or response signal) of its UE is different, then the UE needs to ask multiple other UE
Ask discovery signal (or response signal) detected and report to high level after, just can determine that the request discovery signal (or response letter
Number) requested target UE is that this is found UE.
As it can be seen that it is the request discovery signal or response signal of itself that UE, which needs to detect target not, detection and processing are increased
Complexity.
Summary of the invention
The present invention provides a kind of signaling method, detection method and relevant device, is detected with to avoid user equipment
Target is not the signal of itself, reduces the complexity of signal detection and processing.
Specific technical solution provided in an embodiment of the present invention is as follows:
In a first aspect, providing a kind of signaling method, comprising:
First user equipment (UE) obtains the identification information of the 2nd UE；
First UE generates the first particular sequence according to the identification information of the 2nd UE and carries first spy
First signal of sequencing column；
First UE sends first signal, so that the 2nd UE is based on according to the identification information of itself generation
First particular sequence detects first signal.
Preferably, first particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of first signal, described of first signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of one signal.
Preferably, the identification information of the first UE is also carried in first signal, alternatively, the first UE and
The identification information of two UE.
Preferably, the identification information includes any of the following or a variety of combinations:
Terminal identification information；
The exclusive mark of device-to-device D2D transmission；
D2D application identities；
User identifier in D2D application；
The mark of place D2D user group；
Mark in D2D user group.
Preferably, the first UE sends first signal, comprising:
First UE sends first signal in the transmission resource that network side configures；
Alternatively,
First UE sends first signal in sending resource pool, and the transmission resource pool is allocated to by network side
First UE or the transmission resource pool are pre-configured to be on the first UE.
Preferably, the first UE sends first signal, comprising:
First UE is according to the first signal described in preset duration periodicity sending.
Preferably, after the first UE sends first signal, the method also includes:
First UE generates the second particular sequence according to the identification information of itself, is detected based on second particular sequence
The second signal that 2nd UE is returned.
Preferably, second particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of the second signal, described of the second signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of binary signal.
Preferably, after the first UE confirmly detects the second signal that the 2nd UE is returned, the method also includes:
First UE stops sending first signal.
Preferably, after the first UE confirmly detects the second signal that the 2nd UE is returned, the method also includes:
First UE and the 2nd UE carries out the transmission of D2D data.
Second aspect provides a kind of signal detecting method, comprising:
2nd UE generates the first particular sequence according to the identification information of itself；
2nd UE detects the first signal that the first UE is sent, first letter based on first particular sequence
First particular sequence that the first UE is generated according to the identification information of the 2nd UE is carried in number.
Preferably, the method also includes:
2nd UE determines the identification information for sending the first UE of first signal, according to the mark of the first UE
Information generates the second particular sequence and carries the second signal of second particular sequence；
2nd UE sends the second signal, so that the first UE is based on described the generated according to self identification
Two particular sequences detect the second signal.
Preferably, the 2nd UE determines the identification information for sending the first UE of first signal, comprising:
The identification information of the first UE is carried in first signal, the 2nd UE is obtained from first signal
Take the identification information of the first UE.
Preferably, first particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of first signal, described of first signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of one signal.
Preferably, second particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of the second signal, described of the second signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of binary signal.
Preferably, the identification information of the first UE and/or the mark of the 2nd UE are also carried in the second signal
Know information.
Preferably, the 2nd UE sends the second signal, comprising:
2nd UE occupies physical resource according to preset first signal and occupies the corresponding of physical resource with second signal
Relationship, it is determining that the corresponding second signal occupancy physical resource of physical resource is occupied with first signal, determining described the
Binary signal occupies and sends the second signal on physical resource.
Preferably, the 2nd UE sends the second signal, comprising:
2nd UE sends the second signal in the transmission resource that network side configures；
Alternatively,
2nd UE sends the second signal in sending resource pool, and the transmission resource pool is allocated to by network side
2nd UE, alternatively, the transmission resource pool is pre-configured to be on the 2nd UE.
Preferably, the 2nd UE sends the second signal, comprising:
2nd UE is according to second signal described in scheduled duration periodicity sending.
The third aspect provides a kind of user equipment (UE), comprising:
Acquiring unit, for obtaining the identification information of the 2nd UE；
The identification information of generation unit, the 2nd UE for being obtained according to the acquiring unit generates the first specific sequence
Arrange and carry the first signal of first particular sequence；
Transmission unit, first signal generated for sending the generation unit, so that the 2nd UE is based on according to certainly
First particular sequence that the identification information of body generates detects first signal.
Preferably, the transmission unit is specifically used for:
First signal is sent in the transmission resource of network side configuration；
Alternatively,
First signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, or
Transmission resource pool described in person is pre-configured to be on the UE.
Preferably, the transmission unit is specifically used for:
According to the first signal described in preset duration periodicity sending.
Preferably, further include detection unit, be used for:
The second particular sequence is generated according to the identification information of itself, the 2nd UE is detected based on second particular sequence
The second signal of return.
Preferably, the transmission unit is also used to:
After determining the second signal that the detection unit detects that the 2nd UE is returned, stop sending first letter
Number.
Preferably, the transmission unit is also used to:
After determining the second signal that the detection unit detects that the 2nd UE is returned, D2D is carried out with the 2nd UE
Data transmission.
Fourth aspect provides a kind of user equipment (UE), comprising:
First generation unit, for generating the first particular sequence according to the identification information of the UE itself；
Detection unit, for detecting the first signal that the first UE is sent based on first particular sequence, described the
First particular sequence that the first UE is generated according to the identification information of the 2nd UE is carried in one signal.
It preferably, further include the second generation unit and transmission unit；
Second generation unit, for determining the identification information for sending the first UE of first signal, according to described
The identification information of first UE generates the second particular sequence and carries the second signal of second particular sequence；
The transmission unit, for sending the second signal, so that the first UE is based on being generated according to self identification
Second particular sequence detect the second signal.
Preferably, the identification information of the first UE is carried in first signal, second generation unit is specific
For:
The identification information of the first UE is obtained from first signal.
Preferably, the transmission unit is specifically used for:
Occupy the corresponding relationship that physical resource and second signal occupy physical resource according to preset first signal, determine with
First signal occupies the corresponding second signal of physical resource and occupies physical resource, occupies object in the determining second signal
The second signal is sent in reason resource.
Preferably, the transmission unit is specifically used for:
The second signal is sent in the transmission resource of network side configuration；
Alternatively,
The second signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, or
Person, the transmission resource pool are pre-configured to be on the UE.
Preferably, the transmission unit is specifically used for:
According to second signal described in scheduled duration periodicity sending.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, the first UE generates the first spy according to the identification information of the 2nd UE
Sequencing arranges and carries the first signal of first particular sequence and send first signal；2nd UE is according to itself mark
Information generates the first particular sequence and detects the first signal based on first particular sequence, so that the UE in D2D transmission is only
It is able to detect that target is the signal of itself, it is the signal of itself that UE, which can exclude target not in signal detection process, and is showed
Have in scheme and signal detection is carried out using each UE general sequence, target can not be excluded in signal detection process is not itself
Signal, existing scheme needs are reported to high-rise progress body respectively after detecting multiple signals, after parsing to each signal
Part compares, and then determines whether the signal is the signal for being sent to itself, provided in an embodiment of the present invention relative to existing scheme
Scheme eliminates the signal that UE is not itself to target and is parsed and be reported to the high-rise process for carrying out identity comparison, reduces
The processing complexity of UE.Also, UE is sent to the signal of different other UE using different particular sequences, between unlike signal
There can be certain interference randomization effect, be also possible to prevent the signal that other non-targeted UE detect target UE, so that safety
Property has obtained certain guarantee.
Detailed description of the invention
Fig. 1 is existing cellular communication schematic diagram；
Fig. 2 is existing D2D communication scheme；
Fig. 3 is the method flow schematic diagram that signal is sent in the embodiment of the present invention；
Fig. 4 is the method flow schematic diagram of signal detection in the embodiment of the present invention；
Fig. 5 is UE structural schematic diagram in the embodiment of the present invention；
Fig. 6 is another UE structural schematic diagram in the embodiment of the present invention；
Fig. 7 is another UE structural schematic diagram in the embodiment of the present invention；
Fig. 8 is another UE structural schematic diagram in the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
In following embodiment, the first signal is the request signal in D2D transmission, and second signal is the sound in D2D transmission
Induction signal, by taking D2D discovery procedure as an example, the first signal is request discovery signal, and second signal is response discovery signal.
In first embodiment of the invention, as shown in figure 3, the method detailed process that UE sends signal is as follows:
Step 301: the first UE obtains the identification information of the 2nd UE.
Wherein, the target UE of the 2nd UE is the first UE D2D discovery or communication.First UE can obtain target UE from high level
Identification information.
Step 302: the first UE according to the identification information of the 2nd UE generates the first particular sequence and to carry this first specific
First signal of sequence.
Preferably, the first particular sequence including but not limited to combination of any one or more below:
Demodulated reference signal (DMRS) sequence of first signal, the information scramble sequence of the first signal, the first signal follow
The scramble sequence of ring redundancy check (CRC) check bit.
For example, the first particular sequence is DMRS sequence, which generates according to preset formula, the correlation in the formula
The value of parameter can be determining according to the identification information of the 2nd UE or makes an appointment.
In another example the first particular sequence is the information scramble sequence of the first signal, which fixes for length
Pseudo-random sequence, the initial value of the pseudo-random sequence determines according to the identification information of the 2nd UE.
In another example the first particular sequence is the scramble sequence of CRC check bit, the scramble sequence of the CRC check bit can
To directly adopt the identification information of the 2nd UE, or the identification information of the 2nd UE is used to be calculated according to preset rules.
In another example the first UE generates the mode of DMRS sequence, it can reuse in D2D directly discovery mode and find in message
Generating mode used by DMRS sequence；, it is only necessary to replace what is used in existing discovery message to consolidate using the identification information of the 2nd UE
Calibration is known.Alternatively, the first UE generates the mode of information scramble sequence, it can reuse and find to disappear in D2D directly discovery mode
Generating mode used by information scramble sequence in breath, it is only necessary to replace using in discovery message using the identification information of the 2nd UE
Constant mark.
Preferably, the first signal also carries the identification information of the first UE, alternatively, also carrying the first UE in the first signal
With the identification information of the 2nd UE.
Preferably, the identification information of the identification information of the first UE or the 2nd UE include but is not limited to it is following any one or it is more
The combination of kind:
Terminal identification information, the information distinguished for identifying UE and other UE, for example, the radio network temporary identifier of UE
Accord with the identification informations such as (RNTI) or international mobile subscriber identity (IMSI)；
The exclusive mark of D2D transmission, the exclusive identity of UE (UE-specific ID) for identifying D2D UE, such as
Application layer User Identity (Application layer User ID), adjacent service identify (Proximity Service
ID, ProSe ID), source identity (Source ID) or user's adjacent service indicate code (Expression Code)；
D2D application identities, for identifying the mark of D2D application, such as adjacent service application ID (ProSe
Application ID)；
User identifier in D2D application, for for the ID for identifying D2D UE in some D2D application；
The mark of place D2D user group, ID, that is, the identity (Group organized for D2D user group where identifying UE
ID)；
Mark in D2D user group, for identifying the ID of UE in some D2D user group.
Step 303: the first UE sends first signal, so that the 2nd UE according to the identification information of itself based on generating
First particular sequence detects first signal.
Preferably, the first UE sends first signal in the transmission resource that network side configures；
Alternatively,
First UE sends the first signal in sending resource pool, which is allocated to the first UE by network side, or
Person's transmission resource pool is pre-configured to be on the first UE.
Wherein, send resource pool by multiple set for forming of transmission resources, the first UE can according to certain rule from
Middle selection sends resource.
Preferably, the first UE is according to the first signal of preset duration periodicity sending.
Preferably, after the first UE sends the first signal, the second particular sequence is generated according to the identification information of itself, being based on should
Second particular sequence detects the second signal that the 2nd UE is returned.
Preferably, the first UE second signal that the 2nd UE of detection is returned in receiving resource pool one；Alternatively, the first UE according to
Preset first signal occupies physical resource and second signal occupies the corresponding relationship of physical resource, determining to occupy with the first signal
The corresponding second signal of physical resource occupies physical resource, occupies in determining second signal and receives described second on physical resource
Signal.
Wherein, the second particular sequence including but not limited to combination of any one or more below:
The cyclic redundancy of the demodulated reference signal sequence of second signal, the information scramble sequence of second signal, second signal
Verify the scramble sequence of check bit.
Wherein, the first UE generates the specific embodiment of the second particular sequence and generates the generating mode of the first particular sequence
Identical, difference is only that, the second particular sequence is generated according to the identification information of the first UE, and the first particular sequence is according to second
The identification information of UE generates.
Preferably, after the first UE confirmly detects the second signal that the 2nd UE is returned, stop sending the first signal.
Preferably, after the first UE confirmly detects the second signal that the 2nd UE is returned, the first UE and the 2nd UE carry out D2D number
According to transmission.
Based on the same inventive concept, in second embodiment of the invention, as shown in figure 4, UE carries out the detailed side of signal detection
Method process is as follows:
Step 401: the 2nd UE generates the first particular sequence according to the identification information of itself.
Preferably, the first particular sequence including but not limited to combination of any one or more below:
The demodulated reference signal sequence of first signal, the information scramble sequence of the first signal, the first signal cyclic redundancy
Verify the scramble sequence of check bit.
Wherein, the 2nd UE is specific according to the first UE generation first in the mode and first embodiment for generating the first particular sequence
The mode of sequence is identical, can refer to the associated description in first embodiment, details are not described herein again.
Step 402: the 2nd UE detects the first signal that the first UE is sent based on first particular sequence, in first signal
Carry first particular sequence that the first UE is generated according to the identification information of the 2nd UE.
Preferably, the 2nd UE detects the first signal in receiving resource pool two.
Wherein, which can be the set of multiple reception resource compositions, can also only include one and connect
Resource is received, i.e. the 2nd UE can receive the first signal in a preconfigured resource.
For example, the 2nd UE generates DMRS sequence according to the mark of itself, on each physical resource in reception resource pool two
Signal carries out relevant operation, there are after request signal on determining a certain physical resource, DMRS sequence based on generation and same
The information scramble sequence generated with the identification information of itself, detects signal on the physical resource.
Preferably, the 2nd UE is after detecting that target is itself the first signal, can also be to sending first signal
First UE returning response signal, specific as follows:
2nd UE determines the identification information for sending the first UE of the first signal, generates second according to the identification information of the first UE
Particular sequence and the second signal for carrying second particular sequence；2nd UE sends second signal, so that the first UE is based on root
Second signal is detected according to second particular sequence that self identification generates.
Preferably, the identification information of the first UE is carried in the first signal, the 2nd UE obtains the first UE from the first signal
Identification information.
Preferably, the second particular sequence including but not limited to combination of any one or more below:
The cyclic redundancy of the demodulated reference signal sequence of second signal, the information scramble sequence of second signal, second signal
Verify the scramble sequence of check bit.
Wherein, the 2nd UE generates the first UE in the mode and first embodiment of the second particular sequence and generates the second particular sequence
Mode it is identical, can refer to the associated description in first embodiment, details are not described herein again.
Preferably, the identification information of the first UE and/or the identification information of the 2nd UE are also carried in second signal.
Wherein, second signal can find signal for the response found for D2D, or can be D2D signal of communication.
Preferably, the 2nd UE occupies physical resource according to preset first signal and second signal occupies pair of physical resource
It should be related to, determining second signal corresponding with the first signal occupancy physical resource occupies physical resource, in determining second signal
It occupies and sends second signal on physical resource.
Preferably, the 2nd UE sends second signal in the transmission resource that network side configures；
Alternatively,
2nd UE sends second signal in sending resource pool, which is allocated to the 2nd UE by network side, or
Person, the transmission resource pool are pre-configured to be on the 2nd UE.
Wherein, send resource pool by multiple set for forming of transmission resources, the 2nd UE can according to certain rule from
Middle selection sends resource.
Preferably, the 2nd UE is according to scheduled duration periodicity sending second signal.
In specific implementation, a UE in D2D transmission can have simultaneously in above-mentioned first embodiment and second embodiment
The first UE and the 2nd UE function, above-mentioned reception resource pool one and receive resource pool two be also possible to same resource pool, i.e.,
UE can receive the detection for carrying out the first signal and the second signal in resource pool simultaneously with the identification information of itself at one, according to
The information carried in the signal detected further judges that the information is request signal or response signal.
Signal transmission is provided for the embodiments of the invention below by way of a specific embodiment, the process of detection is had
Body explanation.
In the specific embodiment, it is assumed that UE1 is source UE, and UE2 is target UE, i.e. UE1 needs to pass through target detection
The mode of (targeted discovery) finds UE2, it is assumed that the ProSe ID of UE1 is ID1, and the ProSe ID of UE2 is ID2.
In the specific embodiment, detailed process is as follows for signal transmission and detection:
UE1 receives application demand, needs to find by D2D to determine whether UE2 is to close on relationship with UE；
For UE1 from the high-rise identification information for obtaining UE2, which is for identifying UE2's in D2D transmission process
ProSe ID；
UE1 generates the DMRS sequence and information scramble sequence of request discovery signal, request hair according to the ProSe ID of UE2
The identification information of UE1 and UE2, including respective ProSe ID and ProSe Application ID are carried in existing signal；
Wherein, DMRS sequence generating method is as follows: assuming that the ProSe ID of UE2 is NID, DMRS sequence length is M, For ZC sequence defined in TS36.211 V8.9.0 section5.5.1.
Wherein, u=NIDModL, v=0, α=0 or f (NID), L is the quantity of total DMRS sequence；
Wherein, information scramble sequence is made of the pseudo-random sequence that a length is 31, specific generation method reference
The definition of 7.2 section of TS36.211 V8.9.0 section.The initialization value of the sequence is cinit=NID, originated in each subframe
Position initialized.
UE1 periodicity sending request in the transmission resource pool of discovery signal finds signal, wherein the transmission resource pool
It can be and UE1 is allocated to by network side, or be pre-configured in UE1, UE1 can randomly choose one in sending resource pool
A physical resource sends request discovery signal as the starting physical resource sent, and with some cycles；
UE2 generates DMRS sequence and information scramble sequence according to the ProSe ID of itself, is based on the DMRS sequence and information
Scramble sequence receives the request discovery signal that detection in resource pool issues itself in request signal；
Wherein, UE2 generates the method for DMRS sequence and information scramble sequence and the generation method of the side UE1 according to ProSe ID
Identical, which, which can be, is configured to UE2 by network side, or is pre-configured in the equipment of UE2.
UE2 detects the request discovery signal that UE1 is sent on some physical resource, includes in request discovery signal
The identification information of UE1 and UE2 further includes UE1 and UE2 respective ProSe ID and ProSe Application ID；
UE2 knows that itself can be found by UE1, so that it is determined that sending response discovery signal；
UE2 generates the DMRS sequence and information scramble sequence of response discovery signal according to the ProSe ID of the UE1 of acquisition, and
Discovery signal at oneself sends transmission response discovery signal in resource pool, which finds the mark that UE1 and UE2 is carried in signal
Know information, wherein the generation method of DMRS sequence and information scramble sequence is identical as the generation method of the side UE1, it is only necessary to use UE1
ProSe ID replace UE2 ProSe ID；
UE1 generates DMRS sequence and information scramble sequence according to the ProSe ID of itself, is based on the DMRS sequence and information
Scramble sequence receives the response discovery signal that detection in resource pool issues itself in response signal；
After UE1 confirmly detects the discovery signal of the response from UE2, stop sending the request discovery signal for UE2.
Based on the same inventive concept, in third embodiment of the invention, a kind of UE is provided, the specific implementation of the UE can be found in
The description of first UE in first, second embodiment, overlaps will not be repeated, as shown in figure 5, the UE is specifically included that
Acquiring unit 501, for obtaining the identification information of the 2nd UE；
The identification information of generation unit 502, the 2nd UE for being obtained according to the acquiring unit 501 generates first
Particular sequence and the first signal for carrying first particular sequence；
Transmission unit 503, first signal generated for sending the generation unit 502, so that the 2nd UE is based on
First signal is detected according to first particular sequence that the identification information of itself generates.
Preferably, first particular sequence includes any of the following or a variety of combinations:
The demodulated reference signal sequence of first signal, the information scramble sequence of first signal, first letter
Number cyclic redundancy check check bit scramble sequence.
Preferably, the identification information of the UE is also carried in first signal, alternatively, the UE itself and described the
The identification information of two UE.
Preferably, the identification information of the identification information of the UE itself or the 2nd UE include but is not limited to following any
One or more combinations:
Terminal identification information；
The exclusive mark of D2D transmission；
D2D application identities；
User identifier in D2D application；
The mark of place D2D user group；
Mark in D2D user group.
Preferably, the transmission unit 503 is specifically used for:
First signal is sent in the transmission resource of network side configuration；
Alternatively,
First signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, or
Transmission resource pool described in person is pre-configured to be on the UE.
Wherein, the set that resource pool is made of multiple transmission resources is sent, transmission unit can be according to certain rule
Therefrom selection sends resource.
Preferably, the transmission unit 503 is specifically used for:
According to the first signal described in preset duration periodicity sending.
Preferably, further include detection unit 504, be used for:
The second particular sequence is generated according to the identification information of itself, the 2nd UE is detected based on second particular sequence
The second signal of return.
Preferably, the first UE second signal that the 2nd UE of detection is returned in receiving resource pool；Alternatively, the first UE is according to pre-
If the first signal occupy the corresponding relationship that physical resource and second signal occupy physical resource, it is determining to occupy object with the first signal
It manages the corresponding second signal of resource and occupies physical resource, occupied in determining second signal and receive second letter on physical resource
Number.
Wherein, the second particular sequence including but not limited to combination of any one or more below:
The demodulated reference signal sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check check bit scramble sequence.
It is preferably carried out mode corresponding to this, the transmission unit 503 is also used to:
After determining the second signal that the detection unit 504 detects that the 2nd UE is returned, stop sending described first
Signal.
Preferably, the transmission unit 503 is also used to:
After determining the second signal that the detection unit 504 detects that the 2nd UE is returned, carried out with the 2nd UE
The transmission of D2D data.
Based on the same inventive concept, in fourth embodiment of the invention, another UE is provided, the specific implementation of the UE can be found in
One, in second embodiment the first UE description, overlaps will not be repeated, as shown in fig. 6, the UE mainly includes processor 601
With transceiver 602, wherein
It is special to generate first according to the identification information of the 2nd UE for obtaining the identification information of the 2nd UE for processor 601
Sequencing arranges and carries the first signal of first particular sequence；
Transceiver 602, for sending first signal, so that the 2nd UE according to the identification information of itself based on generating
First particular sequence detects first signal.
Preferably, first particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of first signal, described of first signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of one signal.
Preferably, the identification information of the UE is also carried in first signal, alternatively, the UE and the 2nd UE
Identification information.
Preferably, the identification information includes any of the following or a variety of combinations:
Terminal identification information；
The exclusive mark of device-to-device D2D transmission；
D2D application identities；
User identifier in D2D application；
The mark of place D2D user group；
Mark in D2D user group.
Preferably, transceiver 602 sends first signal in the transmission resource that network side configures；
Alternatively, sending first signal in sending resource pool, the transmission resource pool is allocated to described by network side
UE or the transmission resource pool are pre-configured to be on the UE.
Wherein, send resource pool by multiple set for forming of transmission resources, transceiver can according to certain rule from
Middle selection sends resource.
Preferably, transceiver 602 is according to the first signal described in preset duration periodicity sending.
Preferably, processor 601 generates the second particular sequence according to the identification information of itself, is based on the described second specific sequence
Column detect the second signal that the 2nd UE is returned.
Preferably, the transceiver second signal that the 2nd UE of detection is returned in receiving resource pool；Alternatively, transceiver is according to pre-
If the first signal occupy the corresponding relationship that physical resource and second signal occupy physical resource, it is determining to occupy object with the first signal
It manages the corresponding second signal of resource and occupies physical resource, occupied in determining second signal and receive second letter on physical resource
Number.
Preferably, second particular sequence includes any of the following or a variety of combinations:
The demodulated reference signal sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check check bit scramble sequence.
Preferably, after transceiver 602 determines the second signal that processor 601 detects that the 2nd UE is returned, stop hair
Send first signal.
Preferably, it is and described after transceiver 602 determines the second signal that processor 601 detects that the 2nd UE is returned
2nd UE carries out the transmission of D2D data.
Based on the same inventive concept, in fifth embodiment of the invention, another UE is provided, the specific implementation of the UE can be found in
One, in second embodiment the 2nd UE description, overlaps will not be repeated, as shown in fig. 7, the UE is specifically included that
First generation unit 701, for generating the first particular sequence according to the identification information of the UE itself；
Detection unit 702, it is described for detecting the first signal that the first UE is sent based on first particular sequence
First particular sequence that the first UE is generated according to the identification information of the 2nd UE is carried in first signal.
It preferably, further include the second generation unit 703 and transmission unit 704；
Second generation unit 703 sends the identification information of the first UE of first signal for determining, according to described the
The identification information of one UE generates the second particular sequence and carries the second signal of second particular sequence；
Transmission unit 704, for sending the second signal, so that the first UE according to self identification based on generating
Second particular sequence detects the second signal.
Preferably, the identification information of the first UE is carried in first signal, second generation unit 703 has
Body is used for:
The identification information of the first UE is obtained from first signal.
Preferably, first particular sequence includes any of the following or a variety of combinations:
Demodulated reference signal DMRS sequence, the information scramble sequence of first signal, described of first signal
The scramble sequence of the cyclic redundancy check (CRC) check bit of one signal.
Preferably, second particular sequence includes any of the following or a variety of combinations:
The demodulated reference signal sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check check bit scramble sequence.
Preferably, the identification information of the first UE and/or the mark of the UE itself are also carried in the second signal
Know information.
Preferably, the transmission unit 704 is specifically used for:
Occupy the corresponding relationship that physical resource and second signal occupy physical resource according to preset first signal, determine with
First signal occupies the corresponding second signal of physical resource and occupies physical resource, occupies object in the determining second signal
The second signal is sent in reason resource.
Preferably, the transmission unit 704 is specifically used for:
The second signal is sent in the transmission resource of network side configuration；
Alternatively,
The second signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, or
Person, the transmission resource pool are pre-configured to be on the UE.
Wherein, the set that resource pool is made of multiple transmission resources is sent, transmission unit can be according to certain rule
Therefrom selection sends resource.
Preferably, the transmission unit 704 is specifically used for:
According to second signal described in scheduled duration periodicity sending.
Based on the same inventive concept, in sixth embodiment of the invention, another UE is provided, the specific implementation of the UE can be found in
One, in second embodiment the 2nd UE description, overlaps will not be repeated, as shown in figure 8, the UE mainly includes processor 801,
For generating the first particular sequence according to the identification information of the UE itself, based on first particular sequence detection described first
The first signal that UE is sent carries the institute that the first UE is generated according to the identification information of the 2nd UE in first signal
State the first particular sequence.
It preferably, further include transceiver 802.
Wherein, processor 801 is also used to determine the identification information for the first UE for sending first signal, according to described the
The identification information of one UE generates the second particular sequence and carries the second signal of second particular sequence；
Transceiver 802 is for sending the second signal, so that the first UE is based on being marked according to the first UE itself
Know second particular sequence generated and detects the second signal.
Preferably, the identification information of the first UE is carried in first signal, processor 801 is believed from described first
The identification information of the first UE is obtained in number.
Preferably, first particular sequence includes any of the following or a variety of combinations:
The demodulated reference signal sequence of first signal, the information scramble sequence of first signal, first letter
Number cyclic redundancy check check bit scramble sequence.
Preferably, second particular sequence includes any of the following or a variety of combinations:
The demodulated reference signal sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check check bit scramble sequence.
Preferably, the identification information of the first UE and/or the mark of the UE itself are also carried in the second signal
Know information.
Preferably, transceiver 802 occupies physical resource according to preset first signal and second signal occupies physical resource
Corresponding relationship, it is determining that the corresponding second signal occupancy physical resource of physical resource is occupied with first signal, determining
The second signal occupies and sends the second signal on physical resource.
Preferably, transceiver 802 sends the second signal in the transmission resource that network side configures；
Alternatively,
The second signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, or
Person, the transmission resource pool are pre-configured to be on the UE.
Wherein, send resource pool by multiple set for forming of transmission resources, transceiver can according to certain rule from
Middle selection sends resource.
Preferably, transceiver 802 is according to second signal described in scheduled duration periodicity sending.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, source UE issues target according to the generation of the identification information of target UE
The request signal of UE, target UE detects the request signal that other UE issue itself according to the identification information of itself, and is asked according to this
The identification information of the source UE carried in signal is asked to generate corresponding response signal, so that the UE in D2D transmission can only be examined
The signal that target is itself is measured, it is the signal of itself that UE, which can exclude target not in signal detection process, and existing scheme
The middle sequence general using each UE carries out signal detection, and can not exclude target not in signal detection process is the signal of itself,
Existing scheme needs are reported to high-rise progress identity ratio respectively after detecting multiple signals, after parsing to each signal
It is right, and then determine whether the signal is the signal for being sent to itself, relative to existing scheme, scheme provided in an embodiment of the present invention
It eliminates the signal that UE is not itself to target and is parsed and be reported to the high-rise process for carrying out identity comparison, reduce UE
Processing complexity.
Also, UE only detects that target UE is the discovery signal of itself, and detection is not gone to issue the discovery signal of other UE, UE
The discovery signal of different other UE is sent to using different particular sequences, there can be certain interference randomization effect, it can also
To prevent other UE from detecting the discovery signal of target UE, so that safety has obtained certain guarantee.
For example, transmitting terminal UE is generated according to the identification information of target UE when UE carries out signal detection by related operation
DMRS sequence, and the DMRS sequence is carried in the first signal of transmission；Target UE generates DMRS according to the identification information of itself
Sequence carries out coherent detection using the DMRS sequence, and the signal for only carrying the DMRS sequence can be just detected, accordingly really
The signal that regular inspection measures is the signal for being sent to target UE.
In another example UE carries out signal detection by CRC check, transmitting terminal UE generates CRC according to the identification information of target UE
The scramble sequence of check bit, and carry in the first signal of transmission the scramble sequence of the CRC check bit；Target UE according to
The identification information of itself generates the scramble sequence of CRC check bit, and carries out CRC using the scramble sequence of the CRC check bit
To detect signal, the signal for only carrying the scramble sequence of the CRC check bit can be detected for verification, and determine detection
To signal be to be sent to the signal of target UE.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (31)
1. a kind of signaling method characterized by comprising
First user equipment (UE) obtains the identification information of the 2nd UE；
First UE generates the first particular sequence according to the identification information of the 2nd UE and carries the first specific sequence
First signal of column；
First UE sends first signal, so that the 2nd UE is based on first generated according to the identification information of itself
Particular sequence detects first signal.
2. the method as described in claim 1, which is characterized in that first particular sequence includes any of the following or a variety of
Combination:
The demodulated reference signal DMRS sequence of first signal, the information scramble sequence of first signal, first letter
Number cyclic redundancy check (CRC) check bit scramble sequence.
3. the method as described in claim 1, which is characterized in that also carry the mark of the first UE in first signal
Information, alternatively, the identification information of the first UE and the 2nd UE.
4. method as claimed in claim 1 or 3, which is characterized in that the identification information includes any of the following or a variety of
Combination:
Terminal identification information；
The exclusive mark of device-to-device D2D transmission；
D2D application identities；
User identifier in D2D application；
The mark of place D2D user group；
Mark in D2D user group.
5. the method according to claim 1, which is characterized in that the first UE sends first signal, packet
It includes:
First UE sends first signal in the transmission resource that network side configures；
Alternatively,
First UE sends first signal in sending resource pool, and the transmission resource pool is allocated to described by network side
First UE or the transmission resource pool are pre-configured to be on the first UE.
6. the method as described in claim 1, which is characterized in that the first UE sends first signal, comprising:
First UE is according to the first signal described in preset duration periodicity sending.
7. the method as described in claim 1, which is characterized in that after the first UE sends first signal, the method
Further include:
First UE generates the second particular sequence according to the identification information of itself, based on described in second particular sequence detection
The second signal that 2nd UE is returned.
8. the method for claim 7, which is characterized in that second particular sequence includes any of the following or a variety of
Combination:
The demodulated reference signal DMRS sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check (CRC) check bit scramble sequence.
9. method as claimed in claim 7 or 8, which is characterized in that the first UE confirmly detects the 2nd UE and returns
Second signal after, the method also includes:
First UE stops sending first signal.
10. method as claimed in claim 7 or 8, which is characterized in that the first UE confirmly detects the 2nd UE and returns
Second signal after, the method also includes:
First UE and the 2nd UE carries out the transmission of D2D data.
11. a kind of signal detecting method characterized by comprising
2nd UE generates the first particular sequence according to the identification information of itself；
2nd UE detects the first signal that the first UE is sent based on first particular sequence, carries in first signal
The first particular sequence that first UE is generated according to the identification information of the 2nd UE.
12. method as claimed in claim 11, which is characterized in that the method also includes:
2nd UE determines the identification information for sending the first UE of first signal, according to the identification information of the first UE
It generates the second particular sequence and carries the second signal of second particular sequence；
2nd UE sends the second signal, so that the first UE is special based on described second generated according to self identification
Determine second signal described in Sequence Detection.
13. method as claimed in claim 12, which is characterized in that the 2nd UE, which is determined, sends the first of first signal
The identification information of UE, comprising:
The identification information of the first UE is carried in first signal, the 2nd UE obtains institute from first signal
State the identification information of the first UE.
14. method as claimed in claim 11, which is characterized in that first particular sequence includes any of the following or more
The combination of kind:
The demodulated reference signal DMRS sequence of first signal, the information scramble sequence of first signal, first letter
Number cyclic redundancy check (CRC) check bit scramble sequence.
15. method as claimed in claim 12, which is characterized in that second particular sequence includes any of the following or more
The combination of kind:
The demodulated reference signal DMRS sequence of the second signal, the information scramble sequence of the second signal, second letter
Number cyclic redundancy check (CRC) check bit scramble sequence.
16. method as claimed in claim 12, which is characterized in that also carry the mark of the first UE in the second signal
Know information and/or the identification information of the 2nd UE.
17. method as claimed in claim 12, which is characterized in that the 2nd UE sends the second signal, comprising:
2nd UE occupies physical resource according to preset first signal and second signal occupies the corresponding relationship of physical resource,
Determining second signal corresponding with first signal occupancy physical resource occupies physical resource, in the determining second signal
It occupies and sends the second signal on physical resource.
18. method as claimed in claim 12, which is characterized in that the 2nd UE sends the second signal, comprising:
2nd UE sends the second signal in the transmission resource that network side configures；
Alternatively,
2nd UE sends the second signal in sending resource pool, and the transmission resource pool is allocated to described by network side
2nd UE, alternatively, the transmission resource pool is pre-configured to be on the 2nd UE.
19. method as claimed in claim 12, which is characterized in that the 2nd UE sends the second signal, comprising:
2nd UE is according to second signal described in scheduled duration periodicity sending.
20. a kind of user equipment (UE) characterized by comprising
Acquiring unit, for obtaining the identification information of the 2nd UE；
Generation unit, the identification information of the 2nd UE for being obtained according to the acquiring unit generate the first particular sequence with
And carry the first signal of first particular sequence；
Transmission unit, first signal generated for sending the generation unit, so that the 2nd UE is based on according to certainly
The first particular sequence that the identification information of body generates detects first signal.
21. UE as claimed in claim 20, which is characterized in that the transmission unit is specifically used for:
First signal is sent in the transmission resource of network side configuration；
Alternatively,
First signal is sent in sending resource pool, the transmission resource pool is allocated to the UE, Huo Zhesuo by network side
Transmission resource pool is stated to be pre-configured to be on the UE.
22. UE as claimed in claim 20, which is characterized in that the transmission unit is specifically used for:
According to the first signal described in preset duration periodicity sending.
23. UE as claimed in claim 20, which is characterized in that further include detection unit, be used for:
The second particular sequence is generated according to the identification information of itself, the 2nd UE is detected based on second particular sequence and is returned
Second signal.
24. UE as claimed in claim 23, which is characterized in that the transmission unit is also used to:
After determining the second signal that the detection unit detects that the 2nd UE is returned, stop sending first signal.
25. UE as claimed in claim 23, which is characterized in that the transmission unit is also used to:
After determining the second signal that the detection unit detects that the 2nd UE is returned, D2D data are carried out with the 2nd UE
Transmission.
26. a kind of user equipment (UE) characterized by comprising
First generation unit, for generating the first particular sequence according to the identification information of the UE itself；
Detection unit, for detecting the first signal that the first UE is sent based on first particular sequence, in first signal
Carry the first particular sequence that the first UE is generated according to the identification information of the UE itself.
27. UE as claimed in claim 26, which is characterized in that further include the second generation unit and transmission unit；
Second generation unit, for determining the identification information for sending the first UE of first signal, according to described first
The identification information of UE generates the second particular sequence and carries the second signal of second particular sequence；
The transmission unit, for sending the second signal, so that the first UE is based on the institute generated according to self identification
It states the second particular sequence and detects the second signal.
28. UE as claimed in claim 27, which is characterized in that carry the mark letter of the first UE in first signal
Breath, second generation unit are specifically used for:
The identification information of the first UE is obtained from first signal.
29. UE as claimed in claim 27, which is characterized in that the transmission unit is specifically used for:
Occupy the corresponding relationship that physical resource and second signal occupy physical resource according to preset first signal, it is determining with it is described
First signal occupies the corresponding second signal of physical resource and occupies physical resource, occupies physics money in the determining second signal
The second signal is sent on source.
30. UE as claimed in claim 27, which is characterized in that the transmission unit is specifically used for:
The second signal is sent in the transmission resource of network side configuration；
Alternatively,
The second signal is sent in sending resource pool, the transmission resource pool is allocated to the UE by network side, alternatively, institute
Transmission resource pool is stated to be pre-configured to be on the UE.
31. UE as claimed in claim 27, which is characterized in that the transmission unit is specifically used for: according to the scheduled duration period
Property send the second signal.
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| CN201410438500.3A CN105376770B (en) | 2014-08-29 | 2014-08-29 | A kind of signaling method, detection method and relevant device |
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| US20220167308A1 (en) * | 2019-04-12 | 2022-05-26 | Beijing Xiaomi Mobile Software Co., Ltd. | Scrambling and descrambling methods and apparatuses |
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| CN102231746A (en) * | 2011-07-11 | 2011-11-02 | 华为技术有限公司 | Method for validating identification information and terminal thereof |
| CN103124422A (en) * | 2012-12-04 | 2013-05-29 | 华为终端有限公司 | Device associating method, device and system |
| CN103828474A (en) * | 2013-07-26 | 2014-05-28 | 华为终端有限公司 | Communication method, user equipment and network equipment |
| WO2014117383A1 (en) * | 2013-02-01 | 2014-08-07 | 华为技术有限公司 | Method and apparatus for identifying device in network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102231746A (en) * | 2011-07-11 | 2011-11-02 | 华为技术有限公司 | Method for validating identification information and terminal thereof |
| CN103124422A (en) * | 2012-12-04 | 2013-05-29 | 华为终端有限公司 | Device associating method, device and system |
| WO2014117383A1 (en) * | 2013-02-01 | 2014-08-07 | 华为技术有限公司 | Method and apparatus for identifying device in network |
| CN103828474A (en) * | 2013-07-26 | 2014-05-28 | 华为终端有限公司 | Communication method, user equipment and network equipment |
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