CN104244363A - Method for detecting discovering information, terminal and system - Google Patents
Method for detecting discovering information, terminal and system Download PDFInfo
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- CN104244363A CN104244363A CN201310226570.8A CN201310226570A CN104244363A CN 104244363 A CN104244363 A CN 104244363A CN 201310226570 A CN201310226570 A CN 201310226570A CN 104244363 A CN104244363 A CN 104244363A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
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Abstract
The invention discloses a method for detecting discovering information, a terminal and a system. The method comprises the steps of: indicating the format of the discovering information by discovering UE to a base station according to a preset correspondence between discovering sequence information and discovering information formats, or determining a discovering information format of a discovered UE according to a preset correspondence between physical resources and discovering information formats; and detecting discovering information which is transmitted from the discovered UE according to the determined discovering information format. According to a technical solution provided by an embodiment of the invention, firstly the format of the discovering information is determined, and then the discovering information is detected according to the discovering information format; blind test for all possible discovering information formats is not required; and therefore detection complexity for the discovering information is reduced.
Description
Technical field
The present invention relates to device-to-device (Device-to-Device, D2D) communication technical field, particularly relate to a kind of detection and find the method for message, terminal and system.
Background technology
The D2D communication technology, i.e. terminal direct connection technology, refer to that contiguous terminal (i.e. subscriber equipment, User Equipment, UE) can carry out transfer of data by direct connected link in short range, do not need to carry out data retransmission by Centroid (i.e. base station).
Long Term Evolution (Long Term Evolution, LTE) D2D technology refers to that being operated in LTE authorizes the D2D communication technology controlled in frequency range, by LTE network.The introducing of LTE D2D characteristic will make LTE technology from the simple wireless mobile cellular communication technology towards the direction evolution of " general interconnection technique (Universal Connectivity Technology) ".
D2D technology can be divided into D2D to find to communicate with D2D two processes.
Discovery between D2D UE is by finding that signal realizes, and find that signal generally transmits in special discovery subframe, the discovery signal that different UEs sends takies different frequency domain resource.Find that signal demand ensures having LTE network cover and all can be detected under not having network coverage situation.
Find that signal can comprise find sequence and/or find message.Even if find that signal comprises find sequence and find message, discovery sequence and the discovery message of same discovery signal both can be separate signals, also can realize (such as in same signal, find that sequence is as the pilot signal finding signal, find that message is as the content finding signal).Find that sequence is generally a ZC sequence or m sequence.Find that message is generally transmitted by physical channel, typically such as Physical Uplink Shared Channel/Physical Uplink Control Channel (PUSCH/PUCCH).
The effect that D2D finds can be summed up as: synchronous and identification.Synchronously, refer to by finding that signal reaches time domain between UE and frequency domain synchronization, generally by finding that sequence realizes.Identify, referring to by finding signal, finding UE(discovered UE, i.e. the executive agent of identification maneuver) can know be found UE(discovering UE) some information, thus identify and be found UE; Find that the information that UE is known by discovery signal can be facility information, application message, COS etc., these information are generally by finding that message is transmitted.
For different network coverage situations (compare if any the network coverage, do not have the network coverage), different application scenarioss (such as broadcast or social application), different device types or different COS, find that message needs to carry different information, thus cause finding that message can have multiple different form.
Find that UE is when detecting discovery message, if do not know the form of target message, then needs all possible message format of blind check, thus introduces very high detection complexity.
Summary of the invention
The object of this invention is to provide a kind of detection and find the method for message, terminal and system, to solve the problem that all possible message format of blind check causes finding that the detection complexity of message is high.
The object of the invention is to be achieved through the following technical solutions:
Detect the method finding message, comprising:
After the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that described discovery sequence pair is answered;
According to the discovery message format determined, described in detection, be found the discovery message that terminal sends.
Detect the method finding message, comprising:
According to the discovery message format indication information being found terminal that Controlling vertex sends, determine the discovery message format being found terminal;
According to the discovery message format being found terminal determined, described in detection, be found the discovery message that terminal sends.
Detect the method finding message, comprising:
According to information and the corresponding relation finding message format of predetermined physical resource, determine to need to detect the discovery message format finding that each physical resource of message is corresponding;
Needing to detect on each physical resource of discovery message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
A kind of terminal, comprising:
Find message format determination module, after detecting and being found discovery sequence that terminal sends, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that described discovery sequence pair is answered;
Find message-detection, for the discovery message format determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends.
A kind of terminal, comprising:
Find message format determination module, for the discovery message format indication information being found terminal sent according to Controlling vertex, determine the discovery message format being found terminal;
Find message-detection, for the discovery message format being found terminal determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends.
A kind of terminal, comprising:
Find message format determination module, for according to the information of predetermined physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding;
Finding message-detection, for needing to detect each physical resource finding message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
Detect the system finding message, comprising:
Controlling vertex, finds the information of sequence and the corresponding relation finding message format for sending to terminal;
Terminal, finds the information of sequence and the corresponding relation finding message format for receiving and preserving; And after the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of described discovery sequence, determine the discovery message format that described discovery sequence pair is answered; According to the discovery message format determined, described in detection, be found the discovery message that terminal sends.
Detect the system finding message, comprising:
Controlling vertex, for sending the information of physical resource and the corresponding relation finding message format to terminal;
Terminal, for receiving and preserving the information of described physical resource and the corresponding relation finding message format; And according to the information of described physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding; Needing to detect on each physical resource of discovery message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
Detect the system finding message, comprising:
Controlling vertex, sends the discovery message format indication information being found terminal to terminal;
Terminal, for the discovery message format indication information being found terminal sent according to described Controlling vertex, determines the discovery message format being found terminal; According to the discovery message format being found terminal determined, described in detection, be found the discovery message that terminal sends.
The technical scheme that the embodiment of the present invention provides, first determines to find message format, then goes to detect according to discovery message format to find message, does not need all possible discovery message format of blind check, because this reducing the detection complexity finding message.
Accompanying drawing explanation
The first method flow chart that Fig. 1 provides for the embodiment of the present invention;
The first method signaling diagram that Fig. 2 provides for the embodiment of the present invention;
The second method flow chart that Fig. 3 provides for the embodiment of the present invention;
The second method signaling diagram that Fig. 4 provides for the embodiment of the present invention;
The third method flow diagram that Fig. 5 provides for the embodiment of the present invention;
The third method signaling diagram that Fig. 6 provides for the embodiment of the present invention;
The first terminal structure schematic diagram that Fig. 7 provides for the embodiment of the present invention;
The second terminal structure schematic diagram that Fig. 8 provides for the embodiment of the present invention;
The first system configuration schematic diagram that Fig. 9 provides for the embodiment of the present invention.
Embodiment
The invention provides a kind of implementation detecting discovery message.In the program, find that UE is according to the information of predetermined discovery sequence and the corresponding relation finding message format, the discovery message format of Controlling vertex instruction, or the information of predetermined physical resource and the corresponding relation finding message format, determine the discovery message format being found UE, and then detect the discovery message being found UE and sending according to the discovery message format determined.The technical scheme that the embodiment of the present invention provides, owing to can determine to find message format, and going to detect discovery message according to discovery message format, not needing all possible discovery message format of blind check, because this reducing the detection complexity finding message.
In the embodiment of the present invention, Controlling vertex can but be not limited only to be as UE of Controlling vertex etc. in base station, D2D communication network.Wherein, base station comprises macro base station (Macro), micro-base station (Micro), femto base station (Pico), Home eNodeB or is called femto base station (Femto) etc., and the WAP (wireless access point) (AP) of other possible employing tdd mode.
In the embodiment of the present invention, find message format can but be not limited only to comprise one of following information or combination in any: find the information field that comprises of message, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find cyclic redundancy (CRC) verification mode of message.
Wherein, find the information field that message comprises, namely find the information content that message comprises.So-called information field can be the information field, the information field of carrying application ID, the information field of carrying COS etc. of the information field of carrying community ID, load bearing equipment ID.Find the message-length of message, namely find the bit number size comprised of message.Finding the channel coding method of message, can be RM coding, convolutional encoding etc.
If find message format by above-mentioned information or part, so, after determining and finding message format, other above-mentioned information can be obtained according to discovery message format, for the detection, the identification being found UE etc. that find message.Illustrate as follows:
Suppose to find that message format is defined as the length finding message, so, by agreement in advance, after the length determining discovery message, just can know that other information finding message (as found the information field of message, finding the modulation system of message, finding the channel coding method of message, find the scrambling mode of message, find cyclic redundancy check (CRC) mode of message etc.).And then go to detect discovery message according to the modulation system, channel coding method, scrambling mode, cyclic redundancy check (CRC) mode etc. of the discovery message obtained, according to finding that the information field of message obtains corresponding information to carry out being found the identification of UE from discovery message.
Below in conjunction with accompanying drawing, the technical scheme that the embodiment of the present invention provides is described in detail.
Detection shown in Fig. 1 finds in the method for message, finds that UE is that it specifically comprises following operation based on finding the information of sequence and finding that the corresponding relation of message format is determined to find message format:
After step 100, discovery UE detect the discovery sequence being found UE transmission, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that this discovery sequence pair is answered.
Step 110, discovery UE, according to the discovery message format determined, detect the discovery message that this is found UE transmission.
Wherein, find sequence information can but be not limited only to comprise one of following information or combination in any:
Find the sequence numbering of sequence, namely generate the serial ID finding that sequence uses; Find the cyclic shift value of sequence; Find the time-domain resource that sequence takies; Find the frequency domain resource that sequence takies.Wherein, finding that the time-domain resource that sequence takies can be specifically the numbering finding sequence place frame or subframe, also can be discovery OFDM (OFDM) notation index shared by sequence etc.
In the embodiment of the present invention, find that the information of sequence has multiple with the way of realization of the corresponding relation finding message format.Such as, in the form of a list, associate often pair and there is the information of the discovery sequence of corresponding relation and discovery message format.Also can to find the function representation corresponding relation of discovery message format that the information of sequence is variable.Etc..
Suppose to find the information of sequence and the corresponding relation finding message format, specifically find the sequence numbering of sequence and the corresponding relation finding message format, then this corresponding relation can be expressed as:
k=n_seq?mod?M
Wherein, k is the index finding message format, and n_seq is the sequence numbering finding sequence, and M is the sum finding message format.
Under this supposed situation, find the corresponding relation of UE first represented by above-mentioned function, determine the index finding message format, then according to the index of the discovery message format determined, determine the discovery message format finding that sequence pair is answered.
Suppose to find the information of sequence and the corresponding relation finding message format, specifically find the cyclic shift value of sequence and the corresponding relation finding message format, then this corresponding relation can be expressed as:
k=n_cs?mod?M
Wherein, k is the index finding message format, and n_cs is the cyclic shift value finding sequence, and M is the sum finding message format.
Under this supposed situation, find that UE is first according to the corresponding relation of this function representation, determine the index finding message format, then according to the index of the discovery message format determined, determine the discovery message format finding that sequence pair is answered.
Based on the above-mentioned either method embodiment of Fig. 1, find that UE according to the corresponding relation of the cyclic shift value of predetermined discovery sequence with the cyclic shift value of the pilot signal of discovery message, can also determine the cyclic shift value of the pilot signal finding message.The cyclic shift value of this predetermined discovery sequence with the corresponding relation of the cyclic shift value of the pilot signal of discovery message is:
n_cs=m_cs
N_cs is the cyclic shift value finding sequence, and m_cs is the cyclic shift value of the pilot signal finding message.
Accordingly, the specific implementation of above-mentioned steps 110 can be: find the cyclic shift value of UE according to the pilot signal of the discovery message determined, detect the pilot signal finding message; The pilot signal of the discovery message detected is used to carry out channel estimating; According to channel estimation results, according to the discovery message format determined, detect the discovery message being found terminal and sending.
It should be pointed out that the above a kind of implementation just determining the cyclic shift value of the pilot signal finding message.The determination mode of the cyclic shift value of other pilot signal can also be had, such as, the cyclic shift value of pilot signal of making an appointment, Controlling vertex cyclic shift value of informing pilot signal etc.Certainly, also can detect by blind check the pilot signal finding message.
Based on the above-mentioned either method embodiment of Fig. 1, wherein, the information finding sequence and the corresponding relation finding message format can be make an appointment between UE, and also can be make an appointment between UE and Controlling vertex, can also be that Controlling vertex sends in advance.
Shown in Fig. 2 is detect the method Signalling exchange figure finding message, and the method is that it specifically comprises following operation based on finding the information of sequence and finding that the corresponding relation of message format is determined to find message format:
Namely step 200, UE B(are found UE) in discovery resource, send discovery signal, find that signal comprises and find sequence and find message.
Preferably, UE B periodically sends and finds signal.
Wherein, finding that resource is the physical resource that takies of discovery signal that UE sends, comprise time-domain resource, frequency domain resource and code resource, can be the exclusive physical resource of UE, and also can be the exclusive physical resource in community, can also be the physical resource of broadcast.
One finds the discovery sequence of signal and finds that message sends on the diverse location of same subframe.Find the discovery sequence of signal and find that message can be separate signal.Find that the discovery sequence of signal can also be the pilot signal (such as m sequence or ZC sequence) finding message.
Namely step 210, UE A(find UE) in the discovery resource of UE B, discovery sequence detected.
UE A detects and finds that the method for sequence can be reused UE in current LTE system and be detected the method for synchronizing signal.
Wherein, if UE B is the object UE that UE A needs discovery, and UE A knows the discovery resource of UE B, then UE A only can detect and find sequence in the discovery resource of UE B.Otherwise UE A detects and finds sequence in all possible discovery resource.
Wherein, possible discovery resource can be made an appointment, and also can be that Controlling vertex sends to UE A in advance.
Step 220, UE A obtain the information finding sequence, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format (namely belonging to the discovery message format of the discovery message of same discovery signal with this discovery sequence) of answering with this discovery sequence pair.
Wherein, the information of the discovery sequence that UE A obtains is the information of the discovery sequence described in above-mentioned corresponding relation.
For finding the information of sequence and the corresponding relation finding message format, see the description of said method embodiment, can repeat no more here.
Step 230, UE A, according to the form of the discovery message determined, the discovery resource of UE B detect the discovery message (namely belonging to the discovery message of same discovery signal with this discovery sequence) that above-mentioned discovery sequence pair is answered.
When UE A detects the discovery message that UE B sends, just the operations such as UE identification can be carried out according to the content of this discovery message.
Detection shown in Fig. 3 finds in the method for message, and find that UE is that the discovery message format indication information being found EU sent based on Controlling vertex is determined to find message format, it specifically comprises following operation:
The discovery message format indication information being found UE that step 300, discovery UE send according to Controlling vertex, determines the discovery message format being found UE.
Preferably, if Controlling vertex is base station, so base station is found the discovery message format indication information of UE by physical layer signaling or high-level signaling to finding that UE sends.
In the embodiment of the present invention, the discovery message being found UE refers to by the discovery message being found UE transmission.Accordingly, the discovery message format being found UE refers to by the discovery message format being found the discovery message that UE sends, and the discovery message format indication information being found UE refers to by the discovery message format indication information being found the discovery message that UE sends.
Wherein, find that message format indication information both can be the complete description of parameter to finding message format, such as comprise information field, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, and/or find the cyclic redundancy check (CRC) mode of message.So, find that UE specifically can obtain the parameter finding message format from this discovery message format indication information, thus determine to find message format.
Find that message format indication information also can be the information such as the index of discovery message format.So, find that UE specifically according to this discovery message format indication information, can search the discovery message format mated with this discovery message format indication information, and determine that it is the discovery message format being found UE from the multiple discovery message formats preserved.
Step 310, discovery UE, according to the discovery message format being found UE determined, detect the discovery message being found terminal and sending.
Preferably, the discovery message format indication information being found UE can be sent by independent signaling, also together can send with the physical resource indication information (or the physical resource indication information shared by the discovery signal being found UE) shared by the discovery message being found UE.Accordingly, find that the Indication message that UE also receives Controlling vertex and sends, this Indication message comprise the physical resource indication information (or being found the physical resource indication information shared by discovery signal of UE) shared by discovery message that is found UE and this is found the discovery message format indication information of UE.And then the specific implementation of above-mentioned steps 310 can be: according to the discovery message format being found UE determined, the physical resource indicated by above-mentioned physical resource indication information detects the discovery message that this is found UE transmission.
Shown in Fig. 4 is detect the method Signalling exchange figure finding message, and the method is that the discovery message format indication information being found UE sent based on base station is determined to find message format, and it specifically comprises following operation:
Namely step 400, base station find UE by high-level signaling to UE A() and UE B(be namely found UE) send for the Indication message of UE B, this Indication message comprises the physical resource indication information shared by discovery signal of UE B and the discovery message format indication information of UE B.
It should be pointed out that base station also can by the Indication message of physical layer signaling transmission for UE B.The discovery message format indication information of the physical resource indication information shared by discovery signal that base station can also send UE B respectively by different signalings and UE B.
Certainly, base station also only can send the discovery message format indication information of UE B.
Step 410, UE A and UE B receive for the Indication message of UE B, and determine according to this Indication message UE B physical resource shared by discovery signal (comprising UE B discovery message shared by physical resource), and the discovery message format of UE B.
If base station does not send the physical resource shared by discovery signal of UE B, UE B can determine that it finds the physical resource shared by signal by other means.Such as, determine according to agreement in advance; Or the physical resource sent the last time shared by discovery signal is defined as this and sends the physical resource found shared by signal.
Step 420, UE B, on the physical resource shared by the discovery signal determined, send according to the discovery message format determined and find signal, find that signal comprises discovery message.
Preferably, UE B periodically sends and finds signal.
Wherein, find can also comprise discovery sequence in signal.So, one finds the discovery sequence of signal and finds that message sends on the diverse location of same subframe.Find the discovery sequence of signal and find that message can be separate signal.Find that the discovery sequence of signal can also be the pilot signal (such as m sequence or ZC sequence) finding message.
Step 430, UE A, on the physical resource shared by the discovery signal of the UE B determined, detect the discovery message of UE B according to the discovery message format of the UE B determined.
If find that signal also comprises discovery sequence, then UE A is also on the physical resource shared by the discovery signal of the UE B determined, detects and finds sequence.Its specific implementation can with reference to the description of above-mentioned steps 210.
If base station does not send the physical resource shared by discovery signal of UE B to UE A, UE A can determine by other means, such as, determine according to agreement in advance.Or UE A can according to the discovery message format of the UE B determined, the discovery message of blind check UE B in all possible discovery resource.
When UE A detects the discovery message that UE B sends, just the operations such as UE identification can be carried out according to the content of this discovery message.
Detection shown in Fig. 5 finds in the method for message, and find that UE is the information of physically based deformation resource and find that the corresponding relation of message format is determined to find message format, it specifically comprises following operation:
Step 500, discovery UE, according to the information of predetermined physical resource and the corresponding relation finding message format, determine the discovery message format needing each physical resource of detection discovery message corresponding.
Wherein, needing the physical resource detecting discovery message can be the physical resource shared by discovery signal being found UE finding that UE determines, also can be find UE from all for sending all or part of physical resource finding to determine the physical resource of signal.
Step 510, discovery UE are needing to detect on each physical resource of discovery message, and the discovery message format corresponding according to the physical resource determined detects the discovery message being found terminal transmission.
Wherein, physical resource information with find message format corresponding relation can but be not limited only to comprise following any one:
Subframe and the corresponding relation (concrete, can be subframe numbering and the corresponding relation finding message format) finding message format; Frequency domain resource and the corresponding relation (concrete, can be the mark of frequency domain resource and the corresponding relation finding message format) finding message format; Code sequence and the corresponding relation (concrete, can be the mark of yard sequence and the corresponding relation finding message format) finding message format; The corresponding relation (concrete, can be the mark of subframe numbering and frequency domain resource and the corresponding relation finding message format) of subframe and frequency domain resource and discovery message format.
In the embodiment of the present invention, the information of physical resource has multiple with the way of realization of the corresponding relation finding message format.Such as, in the form of a list, associate often pair and there is the information of the physical resource of corresponding relation and discovery message format.The function representation corresponding relation of the discovery message format that can be also variable with the information of physical resource.Etc..
Based on the above-mentioned either method embodiment of Fig. 5, wherein, the information of physical resource and the corresponding relation of discovery message format can be make an appointment between UE, and also can be make an appointment between UE and Controlling vertex, can also be that Controlling vertex sends in advance.
Shown in Fig. 6 is detect the method Signalling exchange figure finding message, and the method is that the information of physically based deformation resource is determined to find message format with the corresponding relation of discovery message format, and it specifically comprises following operation:
Namely step 600, UE B(are found UE) in discovery resource, send discovery signal, find that signal comprises discovery message.
The specific implementation of this step can be, UE B is according to finding that message needs the information of carrying, determine to find message format, then according to information and the corresponding relation finding message format of predetermined physical resource, select to find that physical resource (namely the finding resource) transmission that message format is corresponding finds signal.Wherein, the information of physical resource and the corresponding relation of discovery message format can be make an appointment between UE, and also can be make an appointment between UE and Controlling vertex, can also be that Controlling vertex sends in advance.
Preferably, UE B periodically sends and finds signal.
Wherein, finding that resource is the physical resource that takies of discovery signal that UE sends, can be the exclusive physical resource of UE, and also can be the exclusive physical resource in community, can also be the physical resource of broadcast.
Wherein, can have multiple UE B, namely multiple UE that is found sends discovery signal respectively in respective discovery resource.
Wherein, find that signal can also carry discovery sequence.So, one finds the discovery sequence of signal and finds that message sends on the diverse location of same subframe.Find the discovery sequence of signal and find that message can be separate signal.Find that the discovery sequence of signal can also be the pilot signal (such as m sequence or ZC sequence) finding message.
Namely step 610, UE A(find UE) according to the information of predetermined physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding.
Step 620, UE A are needing to detect on each physical resource of discovery message, detect the discovery message of UE B transmission according to the discovery message format that the physical resource determined is corresponding.
When UE A detects the discovery message that UE B sends, just the operations such as UE identification can be carried out according to the content of this discovery message.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, and its structure as shown in Figure 7, comprising:
Find message format determination module 701, after detecting and being found discovery sequence that terminal sends, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that described discovery sequence pair is answered;
Find message-detection 702, for the discovery message format determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends;
Described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
Wherein, described discovery sequence information can but be not limited only to comprise one of following information or combination in any:
Find the sequence numbering of sequence;
Find the cyclic shift value of sequence;
Find the time-domain resource that sequence takies;
Find the frequency domain resource that sequence takies.
In above-mentioned first terminal embodiment, preferably, this terminal also comprises memory module, for preserving the information of the described discovery sequence of to make an appointment with other-end or make an appointment with Controlling vertex and the corresponding relation finding message format; Or, for preserving the information of the described discovery sequence that Controlling vertex sends in advance and the corresponding relation finding message format.Accordingly, find message format determination module 701 specifically for, after the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of the discovery sequence of preserving in described memory module, determine the discovery message format that described discovery sequence pair is answered.
Hardware configuration being comprised to the terminal as shown in Figure 8 of processor 801, memory 802 and antenna 803, when carrying out discovery message detection, between its each hardware can be alternately:
Memory 802 preserves the information of predetermined discovery sequence and the corresponding relation finding message format.
This corresponding relation can be make an appointment between terminal, also can be make an appointment between terminal and Controlling vertex.This corresponding relation can also be that Controlling vertex sends to terminal in advance, and so, terminal receives this corresponding relation by antenna 803, is then saved in memory 802 by this corresponding relation by processor 801.
Processor 801 is detected by antenna 803 and finds sequence, after the discovery sequence being found terminal transmission being detected, processor 801 obtains from memory 802 and finds the information of sequence and the corresponding relation finding message format, and determines according to this corresponding relation the discovery message format that discovery sequence pair is answered.Then according to this discovery message format, the discovery message being found terminal and sending is detected by antenna 803.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, and its structure as shown in Figure 7, comprising:
Find message format determination module 701, for the discovery message format indication information being found terminal sent according to Controlling vertex, determine the discovery message format being found terminal;
Find message-detection 702, for the discovery message format being found terminal determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends;
Described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
Preferably, this terminal also comprises Indication message receiver module, for receiving the Indication message that described Controlling vertex sends, described in described Indication message comprises, be found the physical resource indication information shared by discovery message of terminal and the described discovery message format indication information being found terminal.Accordingly, described discovery message-detection 702 specifically for, according to the discovery message format being found terminal determined, on the physical resource indicated by described physical resource indication information detect described in be found terminal send discovery message.
Hardware configuration being comprised to the terminal as shown in Figure 8 of processor 801, memory 802 and antenna 803, when carrying out discovery message detection, between its each hardware can be alternately:
Be found message format preserved by memory 802.
Processor 801 receives the discovery message format indication information being found terminal of Controlling vertex transmission by antenna 803.Optionally, processor 801 can receive the Indication message of described Controlling vertex transmission by antenna 803, be found the physical resource indication information shared by discovery message of terminal and the described discovery message format indication information being found terminal described in described Indication message comprises.
Processor 801, according to the discovery message format indication information received, determines the discovery message format being found terminal.Concrete, if this indication information is fully described discovery message format, then processor 801 parameter obtained in this indication information is determined to find message format.If the instruction of this indication information is the index finding message format, then processor 801 is according to the index of this discovery message format, determines the discovery message format that be found terminal in the discovery message format preserved from memory 802.
The discovery message format of terminal that what processor 801 was determined be found, is found the discovery message that terminal sends described in detection, detected the discovery message being found terminal and sending by antenna 803.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, and its structure as shown in Figure 7, comprising:
Find message format determination module 701, for according to the information of predetermined physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding;
Finding message-detection 702, for needing to detect each physical resource finding message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding;
Described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
Wherein, described physical resource information with find the corresponding relation of message format comprise following any one:
Subframe and the corresponding relation finding message format;
Frequency domain resource and the corresponding relation finding message format;
Code sequence and the corresponding relation finding message format;
The corresponding relation of subframe and frequency domain resource and discovery message format.
Based on the 3rd terminal embodiment, preferably, this terminal also comprises memory module, for preserving the information of the described physical resource of to make an appointment with other-end or make an appointment with Controlling vertex and the corresponding relation finding message format; Or, for preserving the information of the described physical resource that Controlling vertex sends in advance and the corresponding relation finding message format.
Hardware configuration being comprised to the terminal as shown in Figure 8 of processor 801, memory 802 and antenna 803, when carrying out discovery message detection, between its each hardware can be alternately:
Memory 802 preserves the information of predetermined physical resource and the corresponding relation finding message format.
This corresponding relation can be make an appointment between terminal, also can be make an appointment between terminal and Controlling vertex.This corresponding relation can also be that Controlling vertex sends to terminal in advance, and so, terminal receives this corresponding relation by antenna 803, is then saved in memory 802 by this corresponding relation by processor 801.
Processor 801 obtains the information of physical resource and the corresponding relation finding message format from memory 803, and determines to need to detect the discovery message format finding that each physical resource of message is corresponding according to this corresponding relation.
Processor 801 is needing to detect on each physical resource of discovery message by antenna 803, detects the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of and detects the system finding message, and its structure as shown in Figure 9, comprising:
Terminal 901 and Controlling vertex 902.
Wherein, terminal 901 can be the terminal that above-mentioned any terminal embodiment provides.The structure of this terminal 901 is as shown in Fig. 7 or Fig. 8.
This Controlling vertex 902 can be base station, also can be the terminal as Controlling vertex in D2D communication network.
If terminal 901 is terminals that above-mentioned first terminal embodiment provides, so, Controlling vertex 902 is for sending the information of described discovery sequence and the corresponding relation finding message format to terminal 901.Terminal 901 finds the information of sequence and the corresponding relation finding message format for receiving and preserving; And after the discovery sequence being found terminal transmission being detected, according to finding the information of sequence and the corresponding relation finding message format, determine the discovery message format that this discovery sequence pair is answered; According to the discovery message format determined, detect the discovery message being found terminal and sending.
If terminal 901 is terminals that above-mentioned second terminal embodiment provides, so, Controlling vertex 902 is for sending the discovery message format indication information being found terminal to terminal 901.Terminal 901, for the discovery message format indication information being found terminal sent according to described Controlling vertex 902, determines the discovery message format being found terminal; According to the discovery message format being found terminal determined, described in detection, be found the discovery message that terminal sends.
If terminal 901 is above-mentioned 3rd terminals that terminal embodiment provides, so, Controlling vertex 902 is for sending the information of physical resource and the corresponding relation finding message format to terminal 901.Terminal 901, for receiving and preserving the information of described physical resource and the corresponding relation finding message format; And according to the information of described physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding; Needing to detect on each physical resource of discovery message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
Each terminal provided due to the embodiment of the present invention and system are based on the inventive concept same with method, and therefore, its realization can the description of reference method side embodiment.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (25)
1. detect the method finding message, it is characterized in that, comprising:
After the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that described discovery sequence pair is answered;
According to the discovery message format determined, described in detection, be found the discovery message that terminal sends.
2. method according to claim 1, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
3. method according to claim 1, is characterized in that, the information of described discovery sequence comprises one of following information or combination in any:
Find the sequence numbering of sequence;
Find the cyclic shift value of sequence;
Find the time-domain resource that sequence takies;
Find the frequency domain resource that sequence takies.
4. the method according to any one of claims 1 to 3, is characterized in that, the information of described discovery sequence and the corresponding relation of discovery message format are made an appointment between terminal or make an appointment between terminal and Controlling vertex; Or,
The information of described discovery sequence is that Controlling vertex sends in advance with the corresponding relation of discovery message format.
5. detect the method finding message, it is characterized in that, comprising:
According to the discovery message format indication information being found terminal that Controlling vertex sends, determine the discovery message format being found terminal;
According to the discovery message format being found terminal determined, described in detection, be found the discovery message that terminal sends.
6. method according to claim 5, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
7. the method according to claim 5 or 6, is characterized in that, the method also comprises:
Receive the Indication message that described Controlling vertex sends, described in described Indication message comprises, be found the physical resource indication information shared by discovery message of terminal and the described discovery message format indication information being found terminal;
According to the discovery message format being found terminal determined, be found the discovery message that terminal sends described in detection, comprise:
According to the discovery message format being found terminal determined, described in the physical resource indicated by described physical resource indication information detects, be found the discovery message that terminal sends.
8. detect the method finding message, it is characterized in that, comprising:
According to information and the corresponding relation finding message format of predetermined physical resource, determine to need to detect the discovery message format finding that each physical resource of message is corresponding;
Needing to detect on each physical resource of discovery message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
9. method according to claim 8, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
10. method according to claim 8, is characterized in that, the information of described physical resource with find the corresponding relation of message format comprise following any one:
Subframe and the corresponding relation finding message format;
Frequency domain resource and the corresponding relation finding message format;
Code sequence and the corresponding relation finding message format;
The corresponding relation of subframe and frequency domain resource and discovery message format.
Method described in 11. according to Claim 8 ~ 10 any one, is characterized in that, the information of described physical resource and the corresponding relation of discovery message format are made an appointment between terminal or make an appointment between terminal and Controlling vertex; Or,
The information of described physical resource is that Controlling vertex sends in advance with the corresponding relation of discovery message format.
12. 1 kinds of terminals, is characterized in that, comprising:
Find message format determination module, after detecting and being found discovery sequence that terminal sends, according to information and the corresponding relation finding message format of predetermined discovery sequence, determine the discovery message format that described discovery sequence pair is answered;
Find message-detection, for the discovery message format determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends.
13. terminals according to claim 12, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
14. terminals according to claim 12, is characterized in that, the information of described discovery sequence comprises one of following information or combination in any:
Find the sequence numbering of sequence;
Find the cyclic shift value of sequence;
Find the time-domain resource that sequence takies;
Find the frequency domain resource that sequence takies.
15. terminals according to any one of claim 12 ~ 14, is characterized in that, also comprise memory module, for preserving the information of the described discovery sequence of to make an appointment with other-end or make an appointment with Controlling vertex and the corresponding relation finding message format; Or, for preserving the information of the described discovery sequence that Controlling vertex sends in advance and the corresponding relation finding message format;
Find message format determination module specifically for, after the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of the discovery sequence of preserving in described memory module, determine the discovery message format that described discovery sequence pair is answered.
16. 1 kinds of terminals, is characterized in that, comprising:
Find message format determination module, for the discovery message format indication information being found terminal sent according to Controlling vertex, determine the discovery message format being found terminal;
Find message-detection, for the discovery message format being found terminal determined according to described discovery message format determination module, described in detection, be found the discovery message that terminal sends.
17. terminals according to claim 16, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
18. terminals according to claim 16 or 17, it is characterized in that, also comprise Indication message receiver module, for receiving the Indication message that described Controlling vertex sends, described in described Indication message comprises, be found the physical resource indication information shared by discovery message of terminal and the described discovery message format indication information being found terminal;
Described discovery message-detection specifically for, according to the discovery message format being found terminal determined, on the physical resource indicated by described physical resource indication information detect described in be found terminal send discovery message.
19. 1 kinds of terminals, is characterized in that, comprising:
Find message format determination module, for according to the information of predetermined physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding;
Finding message-detection, for needing to detect each physical resource finding message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
20. terminals according to claim 19, is characterized in that, described discovery message format comprises one of following information or combination in any:
Find the information field that message comprises, find the message-length of message, find the modulation system of message, find the channel coding method of message, find the scrambling mode of message, find the cyclic redundancy check (CRC) mode of message.
21. terminals according to claim 19, is characterized in that, the information of described physical resource with find the corresponding relation of message format comprise following any one:
Subframe and the corresponding relation finding message format;
Frequency domain resource and the corresponding relation finding message format;
Code sequence and the corresponding relation finding message format;
The corresponding relation of subframe and frequency domain resource and discovery message format.
22. terminals according to any one of claim 19 ~ 21, is characterized in that, also comprise memory module, for preserving the information of the described physical resource of to make an appointment with other-end or make an appointment with Controlling vertex and the corresponding relation finding message format; Or, for preserving the information of the described physical resource that Controlling vertex sends in advance and the corresponding relation finding message format.
23. 1 kinds are detected the system finding message, it is characterized in that, comprising:
Controlling vertex, finds the information of sequence and the corresponding relation finding message format for sending to terminal;
Terminal, finds the information of sequence and the corresponding relation finding message format for receiving and preserving; And after the discovery sequence being found terminal transmission being detected, according to information and the corresponding relation finding message format of described discovery sequence, determine the discovery message format that described discovery sequence pair is answered; According to the discovery message format determined, described in detection, be found the discovery message that terminal sends.
24. 1 kinds are detected the system finding message, it is characterized in that, comprising:
Controlling vertex, for sending the discovery message format indication information being found terminal to terminal;
Terminal, for the discovery message format indication information being found terminal sent according to described Controlling vertex, determines the discovery message format being found terminal; According to the discovery message format being found terminal determined, described in detection, be found the discovery message that terminal sends.
25. 1 kinds are detected the system finding message, it is characterized in that, comprising:
Controlling vertex, for sending the information of physical resource and the corresponding relation finding message format to terminal;
Terminal, for receiving and preserving the information of described physical resource and the corresponding relation finding message format; And according to the information of described physical resource and the corresponding relation of discovery message format, determine to need to detect the discovery message format finding that each physical resource of message is corresponding; Needing to detect on each physical resource of discovery message, detecting the discovery message being found terminal and sending according to the discovery message format that the physical resource determined is corresponding.
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| CN104244363B (en) | 2020-02-04 |
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