CN105263188B

CN105263188B - Pass through the information detecting method of synchronization channel transmissions information and synchronizing channel, device

Info

Publication number: CN105263188B
Application number: CN201410311087.4A
Authority: CN
Inventors: 陈文洪
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-07-01
Filing date: 2014-07-01
Publication date: 2018-11-27
Anticipated expiration: 2034-07-01
Also published as: CN105263188A

Abstract

The invention discloses a kind of method, apparatus by synchronization channel transmissions information, and a kind of information detecting method of synchronizing channel, device, with so that receiving end UE can know the information format in synchronizing channel corresponding to the synchronization signal of transmitting terminal UE transmission, so that receiving end UE can be according to the information format detects and obtains the information in synchronizing channel corresponding to the synchronization signal.The method by synchronization channel transmissions information includes：Transmitting terminal user equipment (UE) sends synchronization signal, includes the instruction information of the information format in the corresponding synchronizing channel of the synchronization signal in the information which carries；The transmitting terminal UE determines the corresponding synchronizing channel of the synchronization signal, and sends information to receiving end UE by the synchronizing channel using the information format.

Description

Pass through the information detecting method of synchronization channel transmissions information and synchronizing channel, device

Technical field

The present invention relates to field of communication technology more particularly to a kind of method and device by synchronization channel transmissions information, And a kind of information detecting method and device of synchronizing channel.

Background technique

Between equipment and equipment in (Device-to-Device, D2D) communication process, different types of D2D user is set Standby (User Equipment, UE) would generally carry different information in synchronizing channel.In receiving end, UE if it is not known that The type that the synchronisation source UE of information is transmitted in synchronizing channel can not then know which kind of format to go detection synchronizing channel based on, be examined The meaning for the information in synchronizing channel measured is also unclear.

Being discussed in detail for the prior art is given below.

D2D, that is, terminal direct connection technology refers to that neighbouring terminal can be counted in short range by direct connected link According to the mode of transmission, do not need to be forwarded by central node (i.e. base station), as shown in Figure 1.The short distance of D2D technology itself Communication feature and direct communication mode make it have following advantage：

Terminal carrying out direct communication in close range mode can realize higher data rate, lower delay and lower power consumption；

Using the short distance feature of user terminal widely distributed in network and D2D communication link, frequency spectrum may be implemented The effective use of resource；

The local data that the direct communication mode of D2D can adapt to such as wireless P2P business shares demand, and providing has spirit The data service of adaptability living；

D2D direct communication can expand the covering of network using substantial amounts in network and widely distributed communication terminal Range.

LTE D2D technology refers to the D2D discovery that by LTE network is controlled and communication process of the work in LTE authorized spectrum band. On the one hand the advantage of D2D technology can be given full play to, while the control of LTE network can also overcome some of traditional D2D technology Problem, such as interfere uncontrollable etc..The introducing of LTE D2D characteristic will make LTE technology communicate skill from simple wireless mobile cellular Direction evolution of the art towards general interconnection technique (Universal Connectivity Technology).

UE first has to synchronize before carrying out D2D transmission.Synchronization is completed by synchronization signal, sends synchronization signal D2D UE is known as synchronisation source.UE obtains the synchronous reference for sending D2D signal according to the synchronization signal that some synchronisation source is sent, should Synchronisation source is known as the reference synchronisation source of UE.Meanwhile each UE is likely to become the synchronization signal that synchronisation source sends itself, the synchronization The synchronous reference of signal also refers to synchronisation source from it.If UE without reference to synchronisation source, oneself can determine to send letter Number synchronous reference, such UE is known as independent synchronization source.It, can be corresponding with simultaneous transmission when synchronisation source UE sends synchronization signal Synchronizing channel, the channel is for carrying synchronizing information or resource allocation information.

Several typical D2D transmitting scenes are contained in Fig. 2：In cell, minizone, subnetwork covering and covered without network The D2D of lid is transmitted.The case where transmitting for D2D in cell, UE is obtained synchronous with network side (is with reference to synchronisation source ENB), then UE can obtain mutual synchronization, thus enterprising in synchronous discovery resource according to respectively synchronous with network side Row D2D transmission, D2D resource distribution used can also be obtained from network side.The case where for minizone D2D transmission, due to two May be nonsynchronous between a cell, if according to respectively synchronous with network side, between two UE may be it is nonsynchronous, Directly it can not be found or be communicated, UE may not also know discovery resource used in adjacent cell.At this point, UE needs to pass through neighbour The synchronization signal that cell is sent obtains the timing reference of adjacent cell from the base station of neighboring community or UE, just can be carried out minizone D2D communication.Meanwhile UE can also obtain the resource allocation information of adjacent cell by synchronizing channel from the UE of adjacent cell.

For the scene of subnetwork covering, UE near overlay area is not synchronous biography with the UE in overlay area It is defeated, it is likely to result in serious interfere with each other.At this point, UE can will be in covering by synchronization signal and synchronizing channel in covering Synchronizing information and D2D resource allocation information are transmitted to the UE outside covering, to make the UE near coverage area also can be based on covering Synchronization and resource distribution in band are transmitted with interior UE is covered, and reduce this interference.For the scene of no network coverage, communication Both sides are without access network, in order to guarantee the synchronization between them, can cover between outer UE through synchronization signal and together Walk the respective synchronizing information of channel transfer.

In conclusion in the above scene, UE and and independent synchronization outside UE in the network coverage, with the covering of Network Synchronization The outer UE of the synchronous covering in source may send synchronization signal and synchronizing channel, but the synchronizing channel that they send will usually carry not Same information.For example, the synchronizing channel of UE will carry resource allocation information and synchronizing information in covering, the covering with Network Synchronization Outer UE will usually carry the relevant synchronizing information of network, and UE will usually carry same with independence outside the covering synchronous with independent synchronization source The relevant synchronizing information in step source, the information of different-format may be carried so as to cause their synchronizing channel.At this point, receiving end UE If it is not known that transmitting the type of the synchronisation source UE of information on a sync channel, then it can not know which kind of format to go detection same based on Channel is walked, does not also know the meaning of the information in detected synchronizing channel.

Summary of the invention

The embodiment of the invention provides a kind of method, apparatus by synchronization channel transmissions information and a kind of synchronous letters Information detecting method, the device in road, use is so that receiving end UE can be known corresponding to the synchronization signal of transmitting terminal UE transmission Information format in synchronizing channel, so that receiving end UE can be detected according to the information format and be obtained the synchronization signal institute Information in corresponding synchronizing channel.

A kind of method by synchronization channel transmissions information provided in an embodiment of the present invention, including：

Transmitting terminal user equipment (UE) sends synchronization signal, includes the synchronization signal pair in the information which carries The instruction information for the information format in synchronizing channel answered；

The transmitting terminal UE determines the corresponding synchronizing channel of the synchronization signal, and using the information format described in Synchronizing channel sends information to receiving end UE.

In this way, transmitting terminal UE is by carrying the information lattice in the corresponding synchronizing channel of synchronization signal in synchronization signal The instruction information of formula allows receiving end UE to know the letter in synchronizing channel corresponding to the synchronization signal of transmitting terminal UE transmission Format is ceased, so that receiving end UE can be according to the information format detects and obtains synchronizing channel corresponding to the synchronization signal In information.

Preferably, the transmitting terminal UE in the synchronization signal by carrying the synchronization Source Type of the transmitting terminal UE It indicates information, indicates the information format in the corresponding synchronizing channel of the synchronization signal, and the transmitting terminal UE connects with described Receiving end UE makes an appointment the information format having in the synchronization Source Type of transmitting terminal UE synchronizing channel corresponding with the synchronization signal Corresponding relationship.

Preferably, the synchronization Source Type of the transmitting terminal UE, is one of following classes：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

The synchronous reference not UE outside the network coverage of network side；

Synchronous reference UE outside the network coverage in independent synchronization source；

Synchronous reference UE outside the network coverage of global position system GPS.

Preferably, the synchronous reference includes：Timing reference and/or Frequency Synchronization reference.

Preferably, the instruction information is carried by the main synchronizing sequence or secondary synchronization sequences of the synchronization signal.

Preferably, the instruction information is presented as following one or more information：

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the information format in the synchronizing channel includes in the information for needing to send by the synchronizing channel The length of appearance and/or the information.

Preferably, the information format in the synchronizing channel includes the one or more of following format：

Format one：The length for the information for needing to send by the synchronizing channel is preset first length, and content includes Resource allocation information in synchronizing information and the network coverage；

Format two：The length for the information for needing to send by the synchronizing channel is preset second length, and content includes The relevant synchronizing information of network side；

Format three：The length for the information for needing to send by the synchronizing channel is preset third length, and content includes The relevant synchronizing information in independent synchronization source；

Format four：Needing the information content sent by the synchronizing channel includes the money in synchronizing information and the network coverage Source configuration information；

Format five：Needing the information content sent by the synchronizing channel includes the relevant synchronizing information of network side；

Format six：Needing the information content sent by the synchronizing channel includes the relevant synchronous letter in independent synchronization source Breath.

Preferably, when sending information by the synchronizing channel using the format four, format five or format six, it is described The length for the information that synchronizing channel is sent is identical preset length.

Preferably, the transmitting terminal UE determines the synchronous letter by least one of following corresponding relationship corresponding relationship Number corresponding synchronizing channel：

The synchronization signal and synchronizing channel use identical synchronous reference；

Physical resource used in the synchronization signal and synchronizing channel has the mapping relations of agreement；

What the scramble sequence or demodulated reference signal DMRS sequence of the synchronizing channel were carried according to the synchronization signal Information obtains.

A kind of information detecting method of synchronizing channel provided in an embodiment of the present invention, including：

Receiving end user equipment (UE) detects the synchronization signal that transmitting terminal UE is sent, and it is corresponding therefrom to obtain the synchronization signal Synchronizing channel in information format instruction information；

The receiving end UE determines the corresponding synchronizing channel of the synchronization signal, and is determined according to the instruction information described same Walk the information format in channel；

The receiving end UE carries out information inspection according to the information format, to the corresponding synchronizing channel of the synchronization signal It surveys.

In this way, receiving end UE can know that transmitting terminal UE is sent same from the synchronization signal that transmitting terminal UE is sent The information format in synchronizing channel corresponding to signal is walked, so that receiving end UE can be detected and be obtained according to the information format Take the information in synchronizing channel corresponding to the synchronization signal.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the receiving end UE determines the synchronous letter by least one of following corresponding relationship corresponding relationship Number corresponding synchronizing channel：

Preferably, this method further includes after the receiving end UE carries out infomation detection to the synchronizing channel：

The receiving end UE generates the synchronization signal of itself transmission according to information detected from the synchronizing channel Or data-signal, alternatively, determining the synchronization signal of transmission itself or the required physical resource used of data-signal.

A kind of device by synchronization channel transmissions information provided in an embodiment of the present invention, including：

Synchronization signal transmission unit, for sending the synchronization signal of transmitting terminal user equipment (UE), what which carried It include the instruction information of the information format in the corresponding synchronizing channel of the synchronization signal in information；

Synchronizing channel transmission unit for determining the corresponding synchronizing channel of the synchronization signal, and uses the information lattice Formula sends information to receiving end UE by the synchronizing channel.

By the device, the instruction letter of the information format in the corresponding synchronizing channel of synchronization signal is carried in synchronization signal Breath allows receiving end UE to know the information format in synchronizing channel corresponding to the synchronization signal of transmitting terminal UE transmission, into And receiving end UE is detected according to the information format and obtains the information in synchronizing channel corresponding to the synchronization signal.

Preferably, the transmitting terminal UE in the synchronization signal by carrying the synchronization Source Type of the transmitting terminal UE It indicates information, indicates the information format in the corresponding synchronizing channel of the synchronization signal, and the synchronization signal transmission unit It is also used to store the transmitting terminal UE and the synchronous Source Type of the receiving end UE transmitting terminal UE to make an appointment and the synchronization The corresponding relationship of information format in the corresponding synchronizing channel of signal.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the synchronizing channel transmission unit determines institute by least one of following corresponding relationship corresponding relationship State the corresponding synchronizing channel of synchronization signal：

Preferably, the device further includes：

Synchronous signal detection unit for detecting the synchronization signal of transmitting terminal UE transmission, and therefrom obtains the synchronization signal The instruction information of information format in corresponding synchronizing channel；

Information format determination unit, for determining the information format in the synchronizing channel according to the instruction information；

Synchronizing channel detection unit, for carrying out letter to the corresponding synchronizing channel of the synchronization signal according to the information format Breath detection.

A kind of information detector of synchronizing channel provided in an embodiment of the present invention, including：

Synchronous signal detection unit, the synchronization signal for being sent in receiving end user equipment (UE) side detection transmitting terminal UE, And therefrom obtain the instruction information of the information format in the corresponding synchronizing channel of the synchronization signal；

Synchronizing channel and its information format determination unit, for determining the corresponding synchronizing channel of the synchronization signal, and root The information format in the synchronizing channel is determined according to the instruction information；

Synchronizing channel detection unit, for according to the information format, to the corresponding synchronizing channel of the synchronization signal into Row information detection.

By the device, receiving end UE is allowed to know that transmitting terminal UE is sent from the synchronization signal that transmitting terminal UE is sent Synchronization signal corresponding to information format in synchronizing channel so that receiving end UE can be detected according to the information format And obtain the information in synchronizing channel corresponding to the synchronization signal.

Preferably, the transmitting terminal UE in the synchronization signal by carrying the synchronization Source Type of the transmitting terminal UE It indicates information, indicates the information format in the corresponding synchronizing channel of the synchronization signal, and the synchronous signal detection unit It is also used to store the transmitting terminal UE and the synchronous Source Type of the receiving end UE transmitting terminal UE to make an appointment and the synchronization The corresponding relationship of information format in the corresponding synchronizing channel of signal.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the synchronizing channel and its information format determination unit pass through at least one of following corresponding relationship pair It should be related to and determine the corresponding synchronizing channel of the synchronization signal：

Preferably, the synchronizing channel detection unit is also used to according to the detected information from the synchronizing channel, The synchronization signal or data-signal that the receiving end UE needs to send are generated, transmits the same of the receiving end UE alternatively, determining Walk the physical resource used required for signal or data-signal.

Detailed description of the invention

Fig. 1 is the data flow diagram of the direct-connected communication of existing terminal；

Fig. 2 is existing D2D transmitting scene schematic diagram；

Fig. 3 is a kind of flow diagram of the method by synchronization channel transmissions information provided in an embodiment of the present invention；

Fig. 4 is a kind of flow diagram of the information detecting method of synchronizing channel provided in an embodiment of the present invention；

Fig. 5 is a kind of structural schematic diagram of the device by synchronization channel transmissions information provided in an embodiment of the present invention；

Fig. 6 is a kind of structural schematic diagram of the information detector of synchronizing channel provided in an embodiment of the present invention.

Specific embodiment

In technical solution provided in an embodiment of the present invention, transmitting terminal user equipment (UE) sends synchronization signal, the synchronization signal It include the instruction information of the information format in the corresponding synchronizing channel of the synchronization signal in the information of carrying；The transmitting terminal UE It determines the corresponding synchronizing channel of the synchronization signal, and is sent information to and connect by the synchronizing channel using the information format Receiving end UE, correspondingly, receiving end user equipment (UE) detect the synchronization signal that transmitting terminal UE is sent, and therefrom obtain the synchronous letter The instruction information of information format in number corresponding synchronizing channel；The receiving end UE determines the corresponding synchronization of the synchronization signal Channel, and determine according to the instruction information information format in the synchronizing channel；The receiving end UE is according to the information lattice Formula carries out infomation detection to the corresponding synchronizing channel of the synchronization signal, so that receiving end UE can know transmitting terminal UE Information format in synchronizing channel corresponding to the synchronization signal of transmission, so that receiving end UE can be according to the information format It detects and obtains the information in synchronizing channel corresponding to the synchronization signal.

Preferably, the transmitting terminal UE in the synchronization signal by carrying the synchronization Source Type of the transmitting terminal UE It indicates information, indicates the information format in the corresponding synchronizing channel of the synchronization signal, and the transmitting terminal UE connects with described Receiving end UE makes an appointment the information format having in the synchronization Source Type of transmitting terminal UE synchronizing channel corresponding with the synchronization signal Corresponding relationship.That is transmitting terminal UE carries the information that instruction itself synchronizes Source Type in synchronization signal, and is synchronized according to itself Source Type generates the corresponding synchronizing channel of synchronization signal, and receiving end UE is obtained according to the information carried in the synchronization signal detected The synchronization Source Type for knowing the transmitting terminal UE of the synchronization signal, according to the corresponding synchronous letter of the synchronisation source type detection synchronization signal Road.Certainly, in addition to this, the instruction information can also be other information, such as can also be directly according in synchronization signal Main synchronizing sequence or secondary synchronization sequences indicate the information format in the corresponding synchronizing channel of the synchronization signal.

It is the synchronization Source Type of transmitting terminal UE when the instruction information of the information format in the corresponding synchronizing channel of synchronization signal Instruction information when, in conjunction with the specific process flow of transmitting terminal UE and receiving end UE, be described below provided in an embodiment of the present invention A kind of technical solution：

Step 1：Transmitting terminal UE sends synchronization signal, carries in the synchronization signal and is used to indicate the same of transmitting terminal UE Walk the information of Source Type.

For example, the synchronization signal can be D2D synchronization signal (Device to Device Synchronization Signal, D2DSS)；

Wherein, the synchronization Source Type of the transmitting terminal UE can be：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Synchronous reference is outside the network coverage of global positioning system (Global Positioning System, GPS) UE。

Wherein, above-mentioned synchronous reference is timing reference and/or Frequency Synchronization reference.

Wherein, the information for being used to indicate the synchronization Source Type of transmitting terminal UE is carried by synchronization signal, concrete mode is such as Under：

Mode one：Synchronous Source Type, example are indicated by main synchronous ID in synchronization signal or main synchronizing sequence root index When such as indexing to indicate synchronous Source Type by main synchronizing sequence root, transmitting terminal UE makes an appointment with receiving end UE main synchronous sequence Column root index is as follows with the corresponding relationship of synchronous Source Type：

Mode two：Synchronous Source Type, example are indicated by auxiliary synchronous ID in synchronization signal or secondary synchronization sequences root index When such as indicating synchronous Source Type by auxiliary synchronous ID, transmitting terminal UE and receiving end UE make an appointment and have auxiliary synchronous ID and synchronisation source The corresponding relationship of type is as follows：

Step 2：Transmitting terminal UE determines the corresponding synchronizing channel of the synchronization signal in step 1, and according to the transmitting terminal The synchronization Source Type of UE determines the information format in the synchronizing channel, and including the information content and/or length, and using should Information format sends information to receiving end UE by the synchronizing channel.

For example, the synchronizing channel can be D2D synchronizing channel (Physical Device to Device Synchronization Channel, PD2DSCH).

The transmitting terminal UE and receiving end UE made an appointment transmitting terminal UE synchronization Source Type with it is described synchronous The corresponding relationship of information format in channel.Therefore, the information format sent in the synchronizing channel is according to transmitting terminal UE What synchronous Source Type and the corresponding relationship determined.The format includes one or more of following six kinds of formats：

The transmitting terminal UE determines the information format in the synchronizing channel according to the synchronization Source Type of transmitting terminal UE, tool Body includes：(mode one or mode two)

Mode one：Different synchronization Source Types corresponds to different message length and content, then the transmitting terminal UE is according to this The synchronization Source Type of transmitting terminal UE determines that the information format in the synchronizing channel specifically includes：

If the synchronization Source Type of transmitting terminal UE is UE in the network coverage, synchronizing channel uses above-mentioned format one；

If the synchronization Source Type of transmitting terminal UE is synchronous reference UE outside the network coverage of network side, synchronous letter Road uses above-mentioned format two；

If the synchronization Source Type of transmitting terminal UE is the synchronous reference not UE outside the network coverage of network side, synchronize Channel uses above-mentioned format three.

Mode two：Different synchronization Source Types correspond to identical message length and the different information contents, wherein the phase Same message length A is preset length by making an appointment between transmitting terminal UE and receiving end UE.Then the transmitting terminal UE according to The synchronization Source Type of transmitting terminal UE determines the information format in the synchronizing channel, and specially transmitting terminal UE is synchronized according to itself Source Type determines the content of the information carried in synchronizing channel, specifically includes：

If the synchronization Source Type of transmitting terminal UE is UE in the network coverage, synchronizing channel uses above-mentioned format four；

If the synchronization Source Type of transmitting terminal UE is synchronous reference UE, synchronizing channel outside the network coverage of network side Using above-mentioned format five；

If the synchronization Source Type of transmitting terminal UE is the synchronous reference not UE outside the network coverage of network side, synchronous letter Road uses above-mentioned format six.

The corresponding relationship of the synchronization signal and synchronizing channel can be following one or more of：

Physical resource used in the synchronization signal and synchronizing channel has the mapping relations of agreement, for example they are same It is transmitted in the different OFDM symbols of the fixation of a subframe；

Scramble sequence or demodulated reference signal (the De Modulation Reference of the synchronizing channel Signal, DMRS) sequence obtains according to the information that synchronization signal carries；For example, being obtained according to the synchronisation source ID that synchronization signal carries It arrives, or using part or all of synchronization signal as the DMRS of synchronizing channel.

Step 3：Receiving end UE detects the synchronization signal of transmitting terminal UE, determines hair according to the information carried in synchronization signal The synchronization Source Type of sending end UE；

The synchronization Source Type of the transmitting terminal UE can be：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Synchronous reference UE outside the network coverage of GPS.

Above-mentioned synchronous reference is timing reference and/or Frequency Synchronization reference.

One of receiving end UE determines synchronous Source Type according to the information carried in synchronization signal, and the specific method is as follows：

Method one：Synchronous Source Type is determined according to the main synchronizing sequence detected, for example passes through the root of main synchronizing sequence Index determines synchronous Source Type to determine synchronous Source Type, such as according to following corresponding relationship：

Method two：Synchronous Source Type is determined by secondary synchronization sequences, such as by auxiliary same entrained by secondary synchronization sequences Step ID determines synchronous Source Type to determine synchronous Source Type, such as according to following corresponding relationship：

Step 4：Receiving end UE is according in determining synchronization Source Type, and synchronous Source Type and the synchronizing channel The corresponding relationship of information format determines the information format in synchronizing channel.The corresponding relationship is as follows：

The receiving end UE is according to the information in determining synchronization Source Type, and synchronous Source Type and the synchronizing channel The corresponding relationship of format determines the information format in synchronizing channel, specifically includes：(mode one or mode two)

Mode one：Different synchronization Source Types corresponds to different message length and content, then the receiving end UE is according to really The corresponding relationship of information format in fixed synchronization Source Type, and synchronous Source Type and the synchronizing channel determines synchronous letter Information format in road, specifically includes：

If the synchronization Source Type of transmitting terminal UE is UE in the network coverage, the receiving end UE determines that synchronizing channel uses Above-mentioned format one；

If the synchronization Source Type of transmitting terminal UE is synchronous reference UE outside the network coverage of network side, described to connect Receiving end UE determines synchronizing channel using above-mentioned format two；

If the synchronization Source Type of transmitting terminal UE is the synchronous reference not UE outside the network coverage of network side, described Receiving end UE determines synchronizing channel using above-mentioned format three.

Mode two：Different synchronization Source Types correspond to identical message length and the different information contents, wherein the phase Same message length A is preset length by making an appointment between transmitting terminal UE and receiving end UE.The then receiving end UE According to the corresponding relationship of the information format in determining synchronization Source Type, and synchronous Source Type and the synchronizing channel, determine Information format in synchronizing channel, specifically includes：

If the synchronization Source Type of transmitting terminal UE is UE in the network coverage, the receiving end UE determines synchronizing channel using upper State format four；

If the synchronization Source Type of transmitting terminal UE is synchronous reference UE outside the network coverage of network side, the reception End UE determines synchronizing channel using above-mentioned format five；

If the synchronization Source Type of transmitting terminal UE is the synchronous reference not UE outside the network coverage of network side, described to connect Receiving end UE determines synchronizing channel using above-mentioned format six.

Step 5：Receiving end UE detects the corresponding synchronizing channel of synchronization signal according to determining information format, believes from synchronous The information content is obtained in road, for example including synchronizing information and/or resource allocation information.

Receiving end UE determines the corresponding synchronizing channel of synchronization signal, specifically includes one or more such as under type：

Mode one：According to the synchronous reference obtained from synchronization signal, corresponding synchronizing channel is detected；

Mode two：After detecting synchronization signal, in the physics with the physical resource of synchronization signal with agreement mapping relations Detect synchronizing channel in resource, for example, from detect synchronizing channel in the different OFDM symbols of the same subframe of synchronization signal；

Mode three：The scramble sequence or DMRS sequence of synchronizing channel are obtained by the information that synchronization signal carries, it is specific to wrap It includes：

According to the synchronisation source ID obtained from synchronization signal, the scramble sequence or DMRS sequence of synchronizing channel are obtained, from And synchronize the detection of channel；

After detecting synchronization signal, detected some or all of synchronization signal as the DMRS of synchronizing channel.

After receiving end UE obtains the information in synchronizing channel, according to therein according to synchronizing information and/or resource distribution Information, which generates, itself needs the synchronization signal that sends perhaps data-signal or to determine that the synchronization signal of itself or data-signal pass Defeated physical resource used.

When directly indicating the corresponding synchronization of synchronization signal by main synchronizing sequence in synchronization signal or secondary synchronization sequences When information format in channel, it is specifically described as follows：

Mode one：The information format in synchronizing channel is indicated by the main synchronizing sequence in synchronization signal, for example is passed through The root of main synchronizing sequence indexes to indicate the information format in synchronizing channel, such as the master for arranging and setting between UE in advance Synchronizing sequence root index is as follows with the corresponding relationship of the information format in synchronizing channel：

Or

Such as：When by main synchronizing sequence ID to indicate the information format in synchronizing channel, such as in advance between UE The main synchronous ID and the corresponding relationship of the information format in synchronizing channel for arranging and setting：

Or

Mode two：Synchronous Source Type is indicated by the secondary synchronization sequences in synchronization signal, for example passes through secondary synchronization sequences Entrained auxiliary synchronous ID indicates synchronous Source Type, such as：

Auxiliary synchronous ID	Information format
		0–50	Format one
51-100	Format two
		100-150	Format three

Alternatively,

To sum up, referring to Fig. 3, a kind of method by synchronization channel transmissions information provided in an embodiment of the present invention, including：

S101, transmitting terminal user equipment (UE) send synchronization signal, include the synchronization in the information which carries The instruction information of information format in the corresponding synchronizing channel of signal；

S102, the transmitting terminal UE determine the corresponding synchronizing channel of the synchronization signal, and logical using the information format It crosses the synchronizing channel and sends information to receiving end UE.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Correspondingly, referring to fig. 4, the information detecting method of a kind of synchronizing channel provided in an embodiment of the present invention, including：

The synchronization signal that S201, receiving end user equipment (UE) detection transmitting terminal UE are sent, and therefrom obtain the synchronous letter The instruction information of information format in number corresponding synchronizing channel；

S202, the receiving end UE determine the corresponding synchronizing channel of the synchronization signal, and are determined according to the instruction information Information format in the synchronizing channel；

S203, the receiving end UE carry out letter according to the information format, to the corresponding synchronizing channel of the synchronization signal Breath detection.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

The illustration of two specific embodiments is given below.

Embodiment one：

Transmitting terminal UE is transmitting terminal D2D UE, and receiving end UE is receiving end D2D UE.

Transmitting terminal UE sends D2D synchronization signal, includes main synchronizing sequence and secondary synchronization sequences in D2D synchronization signal, and send out Sending end UE indicates the information format of the corresponding synchronizing channel of synchronization signal by main synchronous ID.Corresponding relationship is as follows：

If the information format of D2D synchronizing channel is format one, i.e., length is A and includes following information, then main synchronous ID It is 0：

If the information format of D2D synchronizing channel is format two, i.e., length is B and includes following information, then main synchronous ID It is 1：

If the information format of D2D synchronizing channel is format three, i.e., length is C and includes following information, then main synchronous ID It is 2：：

It is assumed that the information format of the synchronizing channel of transmitting terminal UE is format one, then its main synchronous ID is 0；

Main synchronous ID obtains the main synchronizing sequence of root index generation to UE accordingly, and it is same to send the D2D comprising this main synchronizing sequence Signal is walked, the synchronization signal occupies several OFDM symbols of subframe N.

Transmitting terminal UE transmits the synchronous letter of the corresponding D2D of the D2D synchronization signal in other OFDM symbols of same subframe Road, the information format of the D2D synchronizing channel are format one.

After receiving end UE detects the D2D synchronization signal of transmitting terminal UE, determine that its main synchronizing sequence ID is 0.

The corresponding relationship of the information format for the information that receiving end UE is carried according to main synchronizing sequence ID and D2D synchronizing channel, Determine that the information that the D2D synchronizing channel of transmitting terminal UE carries is information format one, i.e., length is A and includes D2D frame index and D2D Resource pool configuration information.

Receiving end UE carries out the detection of the D2D synchronizing channel of transmitting terminal UE according to information format 1, successfully detects therein A bit information, to obtain D2D frame index and D2D resource allocation information therein；

Receiving end UE is according to the synchronous reference obtained from D2D synchronization signal, and the D2D obtained from D2D synchronizing channel Frame index obtains the synchronous reference for itself sending synchronization signal and data-signal.

Receiving end UE obtains itself and sends data-signal according to the D2D resource allocation information obtained from D2D synchronization signal Physical resource.

Embodiment two：

Transmitting terminal UE sends D2D synchronization signal, includes main synchronizing sequence and secondary synchronization sequences in D2D synchronization signal.It sends End UE indicates the synchronization Source Type of itself by the root index of main synchronizing sequence, and wherein root indexes and the mapping of synchronous Source Type Relationship is as follows：

Wherein, the information format of synchronous Source Type synchronizing channel corresponding with synchronization signal has the corresponding relationship of agreement such as Under：

If synchronous Source Type is UE in the network coverage, the information of D2D synchronizing channel is information format four, i.e., comprising such as Lower information：

Synchronous Source Type is synchronous reference UE outside the network coverage of network side, then the information of D2D synchronizing channel is Information format five includes following information：(being realized if curtailment D by zero padding)

Synchronous Source Type is the synchronous reference not UE outside the network coverage of network side, then the information of D2D synchronizing channel It for information format six, that is, include following information：(being realized if curtailment D by zero padding)

It is assumed that transmitting terminal UE is UE in covering, then indicate that the root index of the main synchronizing sequence of the type information is 25, And the information format of the corresponding synchronizing channel of synchronization signal of transmitting terminal UE is format four.Root index generates main synchronous sequence to UE accordingly Column, and the D2D synchronization signal comprising this main synchronizing sequence is sent, the synchronization signal occupies several OFDM symbols of subframe N. Here UE can be the UE that can directly receive the PSS/SSS signal of network side transmission in the network coverage.

Transmitting terminal UE transmits the synchronous letter of the corresponding D2D of the D2D synchronization signal in other OFDM symbols of same subframe The information content in road, the D2D synchronizing channel is generated according to information format four.Here the message length of synchronizing channel is agreement Length D, that is, the message length for carrying the different information contents are identical.

After receiving end UE detects the D2D synchronization signal of transmitting terminal UE, determined according to the information carried in D2D synchronization signal The synchronization Source Type of transmitting terminal UE.Specifically, receiving end UE detects the main synchronizing sequence in the D2D synchronization signal of transmitting terminal UE Root index is 25, it is determined that transmitting terminal UE is UE in the network coverage.

The corresponding relationship of the information format for the information that receiving end UE is carried according to synchronous Source Type and D2D synchronizing channel, really The information for determining the D2D synchronizing channel carrying of transmitting terminal UE is information format four, i.e., configures comprising D2D frame index and D2D resource pool Information.

Receiving end UE carries out the inspection of the D2D synchronizing channel of transmitting terminal UE according to the message length D and information format four of agreement It surveys, information therein is successfully detected, to obtain D2D frame index and D2D resource allocation information therein；

Further, receiving end UE obtains itself hair according to the D2D resource allocation information obtained from D2D synchronization signal Send the physical resource of data-signal.

Referring to Fig. 5, a kind of device by synchronization channel transmissions information provided in an embodiment of the present invention, including：

Synchronization signal transmission unit 11, for sending the synchronization signal of transmitting terminal user equipment (UE), which is carried Information in include the corresponding synchronizing channel of the synchronization signal in information format instruction information；

Synchronizing channel transmission unit 12 for determining the corresponding synchronizing channel of the synchronization signal, and uses the information Format sends information to receiving end UE by the synchronizing channel.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the device by synchronization channel transmissions information, can be UE；The synchronization signal transmission unit 11 and synchronizing channel transmission unit 12 can be realized by the processor with transmission-receiving function.

Referring to Fig. 6, a kind of information detector of synchronizing channel provided in an embodiment of the present invention, including：

Synchronous signal detection unit 21, the synchronous letter for being sent in receiving end user equipment (UE) side detection transmitting terminal UE Number, and therefrom obtain the instruction information of the information format in the corresponding synchronizing channel of the synchronization signal；

Synchronizing channel and its information format determination unit 22, for determining the corresponding synchronizing channel of the synchronization signal, and The information format in the synchronizing channel is determined according to the instruction information；

Synchronizing channel detection unit 23, for according to the information format, synchronizing channel corresponding to the synchronization signal Carry out infomation detection.

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

Preferably, the information detector of the synchronizing channel, can be UE；The synchronous signal detection unit 21, Synchronizing channel and its information format determination unit 22 and synchronizing channel detection unit 23 can be by the processing with transmission-receiving function Device is realized.

It is filled described in the embodiment of the present invention by the device of synchronization channel transmissions information and the infomation detection of synchronizing channel Setting can be set in same UE, in other words by also may include in the device of synchronization channel transmissions information synchronizing channel letter The unit in detection device is ceased, the information detector of synchronizing channel also may include the device by synchronization channel transmissions information In unit.In short, same device can have the function of above two device.

In conclusion it is same that transmitting terminal UE carries instruction in synchronization signal in technical solution provided in an embodiment of the present invention The information of the information format (including the information content or the information content and message length) in the corresponding synchronizing channel of signal is walked, Receiving end UE knows the information lattice in the corresponding synchronizing channel of synchronization signal according to the information carried in the synchronization signal detected Formula detects the corresponding synchronizing channel of synchronization signal according to the information format.To reduce the letter of the different synchronizing channel of UE blind examination Cease the complexity of format；The content that the information that synchronizing channel carries is known by the information that synchronization signal carries, makes receiving end UE It is known that Meaning of Information entrained by the synchronizing channel of currently transmitted end UE, obtains synchronizing information or resource allocation information.

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

1. a kind of method by synchronization channel transmissions information, which is characterized in that this method includes：

Transmitting terminal user equipment (UE) sends synchronization signal, includes that the synchronization signal is corresponding in the information which carries The instruction information of information format in synchronizing channel；

The transmitting terminal UE determines the corresponding synchronizing channel of the synchronization signal, and passes through the synchronization using the information format Channel sends information to receiving end UE.

2. the method according to claim 1, wherein the transmitting terminal UE in the synchronization signal by carrying The instruction information of the synchronization Source Type of the transmitting terminal UE indicates the information lattice in the corresponding synchronizing channel of the synchronization signal Formula, and the transmitting terminal UE make an appointment with the receiving end UE have transmitting terminal UE synchronous Source Type and the synchronization signal The corresponding relationship of information format in corresponding synchronizing channel.

3. according to the method described in claim 2, it is characterized in that, the synchronization Source Type of the transmitting terminal UE, is following classes One of：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

4. according to the method described in claim 3, it is characterized in that, the synchronous reference includes：Timing reference and/or frequency are same Step reference.

5. the method according to claim 1, wherein the instruction main synchronization of the information by the synchronization signal Sequence or secondary synchronization sequences carry.

6. according to the method described in claim 5, it is characterized in that, the instruction information is presented as following one or more letter Breath：

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

7. the method according to claim 1, wherein the information format in the synchronizing channel includes needing to pass through The length of the information content and/or the information that the synchronizing channel is sent.

8. the method according to the description of claim 7 is characterized in that the information format in the synchronizing channel includes following format One or more：

Format one：The length for the information for needing to send by the synchronizing channel is preset first length, and content includes to synchronize Resource allocation information in information and the network coverage；

Format two：The length for the information for needing to send by the synchronizing channel is preset second length, and content includes network The relevant synchronizing information in side；

Format three：The length for the information for needing to send by the synchronizing channel is preset third length, and content includes independent The relevant synchronizing information of synchronisation source；

Format four：Needing the information content sent by the synchronizing channel includes that the resource in synchronizing information and the network coverage is matched Confidence breath；

Format six：Needing the information content sent by the synchronizing channel includes the relevant synchronizing information in independent synchronization source.

9. according to the method described in claim 8, it is characterized in that, passing through institute using the format four, format five or format six When stating synchronizing channel transmission information, the length for the information that the synchronizing channel is sent is identical preset length.

10. the method according to claim 1, wherein the transmitting terminal UE passes through in following corresponding relationship extremely A kind of few corresponding relationship determines the corresponding synchronizing channel of the synchronization signal：

The information that the scramble sequence or demodulated reference signal DMRS sequence of the synchronizing channel are carried according to the synchronization signal It obtains.

11. a kind of information detecting method of synchronizing channel, which is characterized in that this method includes：

Receiving end user equipment (UE) detects the synchronization signal that transmitting terminal UE is sent, and it is corresponding same therefrom to obtain the synchronization signal Walk the instruction information of the information format in channel；

The receiving end UE determines the corresponding synchronizing channel of the synchronization signal, and determines the synchronous letter according to the instruction information Information format in road；

The receiving end UE carries out infomation detection according to the information format, to the corresponding synchronizing channel of the synchronization signal.

12. method as claimed in claim 11, which is characterized in that the transmitting terminal UE in the synchronization signal by carrying The instruction information of the synchronization Source Type of the transmitting terminal UE indicates the information lattice in the corresponding synchronizing channel of the synchronization signal Formula, and the transmitting terminal UE make an appointment with the receiving end UE have transmitting terminal UE synchronous Source Type and the synchronization signal The corresponding relationship of information format in corresponding synchronizing channel.

13. according to the method for claim 12, which is characterized in that the synchronization Source Type of the transmitting terminal UE is following class One of type：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

14. according to the method for claim 13, which is characterized in that the synchronous reference includes：Timing reference and/or frequency Synchronous reference.

15. according to the method for claim 11, which is characterized in that the instruction information is same by the master of the synchronization signal Step sequence or secondary synchronization sequences carry.

16. according to the method for claim 15, which is characterized in that the instruction information is presented as following one or more Information：

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

17. according to the method for claim 11, which is characterized in that the information format in the synchronizing channel includes needing to lead to Cross the length of the information content and/or the information that the synchronizing channel is sent.

18. according to the method for claim 17, which is characterized in that the information format in the synchronizing channel includes following lattice The one or more of formula：

19. according to the method for claim 18, which is characterized in that passed through using the format four, format five or format six When the synchronizing channel sends information, the length for the information that the synchronizing channel is sent is identical preset length.

20. according to the method for claim 11, which is characterized in that the receiving end UE passes through in following corresponding relationship extremely A kind of few corresponding relationship determines the corresponding synchronizing channel of the synchronization signal：

21. according to the method for claim 11, which is characterized in that the receiving end UE carries out information to the synchronizing channel After detection, this method further includes：

The receiving end UE according to information detected from the synchronizing channel, generate itself transmission synchronization signal or Data-signal, alternatively, determining the synchronization signal of transmission itself or the required physical resource used of data-signal.

22. a kind of device by synchronization channel transmissions information, which is characterized in that the device includes：

Synchronization signal transmission unit, for sending the synchronization signal of transmitting terminal user equipment (UE), the information of synchronization signal carrying In include the corresponding synchronizing channel of the synchronization signal in information format instruction information；

Synchronizing channel transmission unit, for determining the corresponding synchronizing channel of the synchronization signal, and it is logical using the information format It crosses the synchronizing channel and sends information to receiving end UE.

23. device according to claim 22, which is characterized in that the transmitting terminal UE in the synchronization signal by taking The instruction information of synchronization Source Type with the transmitting terminal UE indicates the information lattice in the corresponding synchronizing channel of the synchronization signal Formula, and the synchronization signal transmission unit is also used to store the transmission that the transmitting terminal UE and the receiving end UE make an appointment Hold the corresponding relationship of the information format in the synchronization Source Type synchronizing channel corresponding with the synchronization signal of UE.

24. device according to claim 23, which is characterized in that the synchronization Source Type of the transmitting terminal UE is following class One of type：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

25. device according to claim 24, which is characterized in that the synchronous reference includes：Timing reference and/or frequency Synchronous reference.

26. device according to claim 22, which is characterized in that the instruction information is same by the master of the synchronization signal Step sequence or secondary synchronization sequences carry.

27. device according to claim 26, which is characterized in that the instruction information is presented as following one or more Information：

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

28. device according to claim 22, which is characterized in that the information format in the synchronizing channel includes needing to lead to Cross the length of the information content and/or the information that the synchronizing channel is sent.

29. device according to claim 28, which is characterized in that the information format in the synchronizing channel includes following lattice The one or more of formula：

30. device according to claim 29, which is characterized in that passed through using the format four, format five or format six When the synchronizing channel sends information, the length for the information that the synchronizing channel is sent is identical preset length.

31. device according to claim 22, which is characterized in that the synchronizing channel transmission unit is closed by corresponding as follows At least one of system corresponding relationship determines the corresponding synchronizing channel of the synchronization signal：

32. device according to claim 22, which is characterized in that the device further includes：

Synchronous signal detection unit, for detecting the synchronization signal of transmitting terminal UE transmission, and it is corresponding therefrom to obtain the synchronization signal Synchronizing channel in information format instruction information；

Synchronizing channel detection unit, for carrying out information inspection to the corresponding synchronizing channel of the synchronization signal according to the information format It surveys.

33. a kind of information detector of synchronizing channel, which is characterized in that the device includes：

Synchronous signal detection unit, the synchronization signal for being sent in receiving end user equipment (UE) side detection transmitting terminal UE, and from The middle instruction information for obtaining the information format in the corresponding synchronizing channel of the synchronization signal；

Synchronizing channel and its information format determination unit, for determining the corresponding synchronizing channel of the synchronization signal, and according to this Instruction information determines the information format in the synchronizing channel；

34. device according to claim 33, which is characterized in that the transmitting terminal UE in the synchronization signal by taking The instruction information of synchronization Source Type with the transmitting terminal UE indicates the information lattice in the corresponding synchronizing channel of the synchronization signal Formula, and the synchronous signal detection unit is also used to store the transmission that the transmitting terminal UE and the receiving end UE make an appointment Hold the corresponding relationship of the information format in the synchronization Source Type synchronizing channel corresponding with the synchronization signal of UE.

35. device according to claim 34, which is characterized in that the synchronization Source Type of the transmitting terminal UE is following class One of type：

UE in the network coverage；

UE outside the network coverage；

Synchronous reference UE outside the network coverage of network side；

36. device according to claim 35, which is characterized in that the synchronous reference includes：Timing reference and/or frequency Synchronous reference.

37. device according to claim 33, which is characterized in that the instruction information is same by the master of the synchronization signal Step sequence or secondary synchronization sequences carry.

38. the device according to claim 37, which is characterized in that the instruction information is presented as following one or more Information：

Main sync id；

Main synchronizing sequence root index；

Auxiliary sync id；

Secondary synchronization sequences root index.

39. device according to claim 33, which is characterized in that the information format in the synchronizing channel includes needing to lead to Cross the length of the information content and/or the information that the synchronizing channel is sent.

40. device according to claim 39, which is characterized in that the information format in the synchronizing channel includes following lattice The one or more of formula：

41. device according to claim 40, which is characterized in that passed through using the format four, format five or format six When the synchronizing channel sends information, the length for the information that the synchronizing channel is sent is identical preset length.

42. device according to claim 33, which is characterized in that the synchronizing channel and its information format determination unit are logical It crosses at least one of following corresponding relationship corresponding relationship and determines the corresponding synchronizing channel of the synchronization signal：

43. device according to claim 33, which is characterized in that the synchronizing channel detection unit is also used to basis from institute Detected information in synchronizing channel is stated, synchronization signal or data-signal that the receiving end UE needs to send are generated, or Person determines the physical resource used required for the synchronization signal for transmitting the receiving end UE or data-signal.