CN106304346B

CN106304346B - A kind of sending, receiving method and device of synchronization signal

Info

Publication number: CN106304346B
Application number: CN201510251476.7A
Authority: CN
Inventors: 徐伟杰; 沈祖康; 潘学明; 王加庆
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2019-07-19
Anticipated expiration: 2035-05-15
Also published as: CN106304346A

Abstract

The present invention relates to the communications fields, more particularly to the sending, receiving method and device of a kind of synchronization signal, to solve the problems, such as that cell measurement existing in the prior art is obscured, this method are as follows: network identity of the base station based on network of self home, according to the Physical Cell Identifier ID of each cell of itself administration, corresponding synchronization signal is generated for each cell respectively；Base station is the synchronization signal distribution running time-frequency resource generated, and each synchronization signal is sent on corresponding running time-frequency resource.And terminal receives the synchronization signal that base station is sent；Terminal is synchronized according to the synchronization signal received with respective cell.Therefore, when being applied to unauthorized frequency range, even if there is multiple operators with deployment is closed on frequently, the synchronization signal of multiple operators is also different, and confounding issues when synchronization signal is measured avoiding problems terminal, and improve terminal to the detection performance of cell.

Description

A kind of sending, receiving method and device of synchronization signal

Technical field

The present invention relates to the communications fields, more particularly to the sending, receiving method and device of a kind of synchronization signal.

Background technique

In the prior art, the synchronization signal in long term evolution (Long Term Evolution, LTE) system includes main same Walk signal (primary synchronization signal, PSS) and secondary synchronization signal (secondary Synchronization signal, SSS).

Cell searching is the first step operation that user equipment (User Equipment, UE) enters cell, and UE passes through search Cell searching behavior is completed for the synchronization signal that cell is sent in base station, to access cell and complete same with the downlink of base station Step, which includes time synchronization and Frequency Synchronization；Wherein, UE can obtain the physics of cell by the detection to synchronization signal Layer cell identifiers, and then the broadcast message of cell is received and read again, and the cell search process of UE is namely based on base station transmission PSS and SSS complete.

Specifically, the physical-layer cell ID in LTE system shares 504, it is divided into 168 physical-layer cell ID groups, In, each group includes 3 physical-layer cell ID.In this way, a physical-layer cell ID can be by representing physical-layer cell group ID NumberWith the number for representing ID in the group of physical-layer cellCarry out unique definition, whereinValue range be 0~ 167, it is carried by auxiliary synchronization channel,Range is 0~2, is carried by primary synchronization channel, i.e.,

3 kinds of PSS (also known as main synchronizing sequence) is defined in existing protocol, they and ID in each physical-layer cell groupWith the relationship mapped one by one.Specifically, PSS is generated by frequency domain Zadoff-Chu sequence, wherein Zadoff-Chu sequence Root index u withCorresponding relationship it is as shown in table 1.

Wherein, in above-mentioned formula, n is the value number in PSS sequence, n=0,1,2 ... 61, indicate the length of PSS sequence Degree is 62.

The root sequence serial number of 1 PSS of table withCorresponding relationship

On the other hand, it being defined in existing protocol, SSS is made up of the m-sequence that two length are 31 cyclic shift, point It is also known as m0 and m1, the merging mode of the two sequences is different in subframe 0 and subframe 5, specific as follows:

Wherein, physical-layer cell group IDIt is determined by the various combination mode of m0 and m1, n is that the numerical value of SSS sequence is compiled Number, it is specific as shown in table 2, wherein when generation the 0thWhen, m0 is that 31 m-sequences since the 0th are constituted, and m1 is It is made of 31 m-sequence cyclic shifts since the 1st, the two differs 1, when generation the 1stWhen, m0 is by from the 1st 31 m-sequence cyclic shifts that position starts are constituted, and m1 is made of 31 m-sequence cyclic shifts since the 2nd, the two phase Poor 1, and so on；Due to m-sequence totally 31, whenWhen, m0 is by 31 m-sequences since the 0th Constitute, m1 is made of 31 m-sequence cyclic shifts since the 2nd ing, the two difference 2, to beforeIt carries out It distinguishes, and so on；WhenWhen, m0 is made of 31 m-sequences since the 0th, and m1 is by opening from the 3rd The 31 m sequence cyclic shifts to begin are constituted, and the two differs 3 ... ...；It therefore, can by the various combination mode of m0 and m1 To indicate168 different class values.

2 physical-layer cell group ID of tableWith the corresponding relationship of m0, m1

Then, base station according to each physical-layer cell ID (i.e.), generate corresponding synchronization signal (including PSS and SSS), and synchronization signal is sent to terminal side in corresponding time-frequency location respectively.

Frequency division duplex (Frequency Division Duplex, FDD) and time division duplex (Time are introduced separately below Division Duplex, TDD) time-frequency location of synchronization signal is sent in system.

Firstly, introducing the frame structure of FDD and TDD respectively.

The frame structure of FDD is as shown in Figure 1, the radio frames of a 10ms are divided into 10 subframes, 20 time slots.Time-gap number from 0 to 19, each time slot is 0.5ms.

The frame structure of TDD is as shown in Fig. 2, the radio frames of a 10ms are divided into two fields, 10 subframes.Each subframe packet Include 2 time slots.Descending pilot frequency time slot (Downlink Pilot Time Slot, DwPTS) protects time slot (guard Period, GP) and uplink pilot time slot (Uplink Pilot Time Slot, UpPTS) one special subframe of composition.

TDD is tdd systems, carries out the switching of uplink and downlink in time.TDD shares 7 kinds of uplink-downlink configurations, such as table 3

It is shown, wherein subframe 0 and subframe 5 are fixed as downlink subframe, and subframe 1 and 6 major part of subframe are special subframe, and And at least part is downlink subframe.

3 TDD uplink-downlink configuration of table

In addition, either FDD or TDD, PSS and SSS occupy 72 subcarriers in system bandwidth center on frequency domain, To accomplish that frequency domain position is unrelated with system bandwidth.Therefore, UE is also just not required in carrying out cell search process when detecting PSS It is to be understood that system bandwidth.But the time-domain position of PSS, SSS are different under FDD standard and TDD standard.

As shown in fig.3, PSS occupies the last one of time slot 0 and time slot 10 in each radio frames under FDD standard Orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol is sent, and SSS exists The penultimate OFDM symbol that time slot 0 and time slot 10 are occupied in time domain is sent.

As shown in fig.4, PSS occupies the 3rd OFDM of subframe 1 and subframe 6 in each radio frames under TDD standard Symbol is sent, and SSS is sent in the last one OFDM symbol that each radio frames occupy subframe 0 and subframe 5.

With the continuous growth of mobile data services amount, frequency spectrum resource is more and more nervous, be used only authorization frequency spectrum resource into The deployment of row network and business transmission are no longer satisfied traffic needs, therefore LTE system can be considered and provide in unlicensed spectrum Transmission is disposed on source, that is, unauthorized long term evolution (Unlicensed LTE, U-LTE or LTE-U) system is expanded, to mention High user experience is simultaneously spread over.How LTE system is carried out to map out the work in unlicensed spectrum resource and be defined not yet at present Method.3GPP tissue has been reached common understanding, and in unauthorized frequency range, it is small that base station needs to send synchronization signal auxiliary terminal progress Area's discovery, and complete time-frequency and the functions such as slightly synchronize.But do not have also for how the synchronization signal of the cell in unauthorized frequency range designs There is clear scheme.

In the prior art, multiple operators be might have in unlicensed spectrum resource and carry out LTE deployment, and multiple operators Cell deployment in the case where no coordination, identical physical district ID generting machanism may be used, it is thus possible to occur The case where multiple adjacent deployment of cell with same physical cell ID.Further, it is provided in cell detection and wirelessly When source control (Radio Resource Management, RRM) measures, it is oneself operator that UE, which may also be measured not, Signal, and the case where measurement result is reported to oneself operator, to cause cell measurement aliasing, cell is caused to take Quality of being engaged in reduces, and affects whole system performance.

For example, UE1 is the user of operator A, in unlicensed spectrum resource, the base station of operator A sends synchronization signal UE1 is assisted to carry out cell discovery, at this point, UE1 optimal cell access scheme is access carrier A administration under objective condition Cell 8 (cell 8 i.e. physically apart from operator A administration is nearest), still, since operator B is in this unauthorized frequency On spectrum resource, also uses identical method and send synchronization signal, and UE1 is just also at the cell of operator B administration at this time In 10 coverage area, therefore, if UE1 receives the synchronization signal of the cell 10 of operator B administration at this time, and according to receiving Synchronization signal analyze to obtain and itself should be linked into operator B administration cell 10, thus feedback response message is by operator B The physical district ID of the cell 10 of administration feeds back to the base station of operator A.

Then, since the physical district ID generting machanism used between different operators is identical, the base of operator A The response message stood according to UE1 feedback is mistakenly considered in the cell 10 that should administer UE1 access carrier A, and at this point it is possible to The 10 distance UE1 of cell of operator A administration is very remote, and therefore, UE1 cannot will correctly access operator A administration most In excellent cell, so as to cause service quality reduction, whole system performance is affected.

Summary of the invention

The embodiment of the present invention provides the sending, receiving method and device of a kind of synchronization signal, to solve in the prior art The problem of existing cell measurement is obscured.

Specific technical solution provided in an embodiment of the present invention is as follows:

A kind of sending method of synchronization signal, comprising:

Network identity of the base station based on network of self home, according to the Physical Cell Identifier of each cell of itself administration ID generates corresponding synchronization signal for each cell respectively；

Base station is the synchronization signal distribution running time-frequency resource generated, and each synchronization signal is enterprising in corresponding running time-frequency resource Row is sent.

When being therefore applied to unauthorized frequency range, even if thering is multiple operators are same to close on deployment, the synchronization of multiple operators frequently Signal is also different, and confounding issues when synchronization signal are measured avoiding problems terminal.In addition, simultaneously using the first PSS and First SSS and at least one set the 2nd PSS and the 2nd SSS can promote terminal to the detection performance and RRM measurement performance of cell.

Optionally, network identity of the base station based on network of self home, according to the physical district ID of a cell, for institute It states a cell and generates corresponding synchronization signal, comprising:

Base station is generated according to the physical district ID of one cell based on the first mapping relations that existing protocol defines The the first primary synchronization signal PSS and the first secondary synchronization signal SSS of one cell；

Physical district ID of the base station according to one cell, the second mapping relations based on setting generate one At least one set the 2nd PSS and the 2nd SSS of cell, wherein second mapping relations it is identical as first mapping relations or Difference indicates the mapping relations between the physical area group ID and composition sequence in physical district ID, and indicates physical area Mapping relations in physical area group in ID between the root of ID and composition sequence index；

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, at least right At least one set of 2nd PSS and the 2nd SSS is scrambled.

Optionally, base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, At least at least one set of 2nd PSS and the 2nd SSS is scrambled, comprising:

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, according to setting Fixed sequence, respectively to the first PSS and the first SSS, and successively scrambles each group of the 2nd PSS and the 2nd SSS；Or Person,

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, according to setting Fixed sequence, respectively successively scrambles each group of the 2nd PSS and the 2nd SSS.

Base station is according to the physical district ID of one cell, based on first mapping relations that existing protocol defines, Generate the first PSS and the first SSS of one cell；

Base station obtains the mapping parameters of the network identity setting of corresponding network of self home, and is obtained based on the mapping parameters Corresponding at least a kind of third mapping relations are taken, and based at least a kind of third mapping relations, are generated one small At least one set the 2nd PSS and the 2nd SSS in area, wherein use mutually similar third between the 2nd PSS and the 2nd SSS of difference group Mapping relations or inhomogeneity third mapping relations, at least a kind of third mapping relations are different from first mapping relations, It indicates the mapping relations between the physical area group ID and composition sequence in physical district ID, and indicates in physical district ID Mapping relations in the group of physical area between the root of ID and composition sequence index.

Optionally, base station is the synchronization signal distribution running time-frequency resource generated, comprising:

It is that the first PSS and the first SSS distributes running time-frequency resource that base station, which is based on existing protocol, alternatively, being the first PSS The running time-frequency resource newly defined is distributed with the first SS；

When base station is that at least one set of 2nd PSS and the 2nd SSS distribute different from the first PSS and the first SSS Frequency resource；Alternatively, base station is the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distribution and the first PSS Identical running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, distribution and described first SSS different running time-frequency resources.

Optionally, the different running time-frequency resource carries for different orthogonal frequency division multiplex OFDM symbols and/or different sons Wave.

Optionally, base station is at least one set of 2nd PSS and the 2nd SSS distribution and the first PSS and the first SSS When different running time-frequency resource, base station is the running time-frequency resource that the first PSS and the first SSS is distributed, and is described at least one set of the The running time-frequency resource of two PSS and the 2nd SSS distribution, realizes multiplexing by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

Base station is the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, is distributed identical as the first PSS Running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, distribution with the first SSS not With running time-frequency resource when, base station is the running time-frequency resource of the first SSS distribution, and at least one set of 2nd PSS and second The running time-frequency resource of the 2nd SSS distribution in SSS, realizes multiplexing by TDM mode or/and FDM mode.

Optionally, each group of the 2nd PSS and the 2nd SSS are occupied between running time-frequency resource position distribution sequence and between the time Every distribution sequence and time interval between the running time-frequency resource position that the first PSS and the first SSS are occupied are identical or not Together.

Optionally, further comprise:

The characteristic information with terminal side agreement synchronization signal, the characteristic information include at least synchronization signal in advance for base station Producing method, the method for salary distribution of running time-frequency resource and transmit cycle；Alternatively,

Base station notifies the feature of synchronization signal to believe before sending the synchronization signal, through high-level signaling to terminal side Breath, the characteristic information include at least producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of synchronization signal.

Optionally, base station is when sending synchronization signal, carried in the synchronization signal the exclusive pilot signal CRS of cell or Person's channel state information reference signals CSI-RS.

A kind of method of reseptance of synchronization signal, comprising:

Terminal receives the synchronization signal that base station is sent；Wherein, the synchronization signal is that the base station is based on own home net The network identity of network is generated according to the Physical Cell Identifier ID of the cell of itself administration for respective cell；

Terminal is synchronized according to the synchronization signal received with respective cell.

It optionally, include the first primary synchronization signal PSS and the first secondary synchronization signal SSS in the received synchronization signal of terminal, And at least one set the 2nd PSS and the 2nd SSS；Wherein,

First PSS and the first SSS is that the base station is generated based on the first mapping relations that existing protocol defines, institute Stating at least one set the 2nd PSS and the 2nd SSS is that the base station is generated based on the second mapping relations of setting, and at least described At least one set the 2nd PSS and the 2nd SSS is scrambled through the base station using scrambler sequence, and the scrambler sequence is the base station What the network identity based on network of self home generated；Wherein, second mapping relations are identical as first mapping relations Or it is different, indicate the mapping relations between the physical area group ID and composition sequence in physical district ID, and indicate that physics is small Mapping relations in physical area group in area ID between the root of ID and composition sequence index.

Optionally, at least described at least one set of 2nd PSS and the 2nd SSS is added through the base station using scrambler sequence It disturbs, comprising:

First PSS and the first SSS and each group of the 2nd PSS and the 2nd SSS is by the base station according to setting Sequence, successively carried out using the scrambler sequence scrambled；Alternatively,

Each group of the 2nd PSS and the 2nd SSS is the sequence by the base station according to setting, using the scrambler sequence according to Secondary progress is scrambled.

Optionally, in the received synchronization signal of terminal include the first PSS and the first SSS, and 2nd PSS of at least one set with 2nd SSS；Wherein,

First PSS and the first SSS is base station to be generated based on the first mapping relations that existing protocol defines, it is described extremely Few one group of the 2nd PSS and the 2nd SSS is that base station is based on the corresponding at least a kind of third mapping relations generation of preset mapping parameters , the mapping parameters are the network identity settings of respective base station network of self home；Wherein, the 2nd PSS of different groups and Mutually similar third mapping relations or inhomogeneity third mapping relations are used between 2nd SSS, at least a kind of third mapping is closed It is, mapping pass physical area group ID and composition sequence in expression physical district ID between different from first mapping relations System, and indicate the mapping relations in the physical area group in physical district ID between the root of ID and composition sequence index.

Optionally, further comprise:

It is the base station distribution that terminal, which receives the occupied running time-frequency resource of synchronization signal,；Wherein,

First PSS and the first occupied running time-frequency resource of SSS are the time-frequency money that the base station is distributed based on existing protocol Source, alternatively, being the running time-frequency resource that the base station newly defines；

The running time-frequency resource and the first PSS and the first SSS that at least one set of 2nd PSS and the 2nd SSS is occupied occupy Running time-frequency resource it is different；Alternatively, the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, occupies and the first PSS The 2nd SSS in identical running time-frequency resource and at least one set of 2nd PSS and the 2nd SSS is occupied and the first SSS Different running time-frequency resources.

Optionally, at least one set of 2nd PSS and the 2nd SSS is occupied different from the first PSS and the first SSS When running time-frequency resource, the running time-frequency resource that the first PSS and the first SSS are occupied, at least one set of 2nd PSS and the 2nd SSS The running time-frequency resource of occupancy realizes multiplexing by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

The 2nd PSS at least one set of 2nd PSS and the 2nd SSS occupies time-frequency identical with the first PSS The 2nd SSS in resource and at least one set of 2nd PSS and the 2nd SSS occupies the time-frequency different from the first SSS When resource, the running time-frequency resource that the first SSS is occupied is accounted for the 2nd SSS at least one set of 2nd PSS and the 2nd SSS Running time-frequency resource realizes multiplexing by TDM mode or/and FDM mode.

Optionally, further comprise:

In synchronizing process, terminal obtains the exclusive pilot signal CRS of cell or channel status letter from the synchronization signal Reference signal CSI-RS is ceased, and RRM measurement is carried out based on the CRS or CSI-RS, and measurement result is reported into base station.

A kind of sending device of synchronization signal, comprising:

Generation unit, for the network identity based on network of self home, according to the object of each cell of itself administration Cell ID ID is managed, generates corresponding synchronization signal for each cell respectively；

Transmission unit, for the synchronization signal distribution running time-frequency resource to generate, and by each synchronization signal when corresponding It is sent in frequency resource.

Optionally, based on the network identity of network of self home, according to the physical district ID of a cell, for described one When a cell generates corresponding synchronization signal, the generation unit is used for:

According to the physical district ID of one cell, based on the first mapping relations that existing protocol defines, described in generation The the first primary synchronization signal PSS and the first secondary synchronization signal SSS of one cell；

According to the physical district ID of one cell, the second mapping relations based on setting generate one cell At least one set the 2nd PSS and the 2nd SSS, wherein second mapping relations and first mapping relations are identical or different, It indicates the mapping relations between the physical area group ID and composition sequence in physical district ID, and indicates in physical district ID Mapping relations in the group of physical area between the root of ID and composition sequence index；

And the network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, it is at least right At least one set of 2nd PSS and the 2nd SSS is scrambled.

Optionally, the network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, at least When scrambling at least one set of 2nd PSS and the 2nd SSS, the generation unit is used for:

Network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, suitable according to setting Sequence respectively to the first PSS and the first SSS, and successively scrambles each group of the 2nd PSS and the 2nd SSS；Alternatively,

Network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, suitable according to setting Sequence respectively successively scrambles each group of the 2nd PSS and the 2nd SSS.

It is generated according to the physical district ID of one cell based on first mapping relations that existing protocol defines First PSS of one cell and the first SSS；

The mapping parameters of the network identity setting of corresponding network of self home are obtained, and obtain phase based on the mapping parameters At least a kind of third mapping relations answered, and based at least a kind of third mapping relations, generate one cell At least one set the 2nd PSS and the 2nd SSS, wherein mapped between the 2nd PSS and the 2nd SSS of difference group using mutually similar third Relationship or inhomogeneity third mapping relations, at least a kind of third mapping relations are different from first mapping relations, indicate Physical area group ID in physical district ID and the mapping relations between composition sequence, and indicate the object in physical district ID Manage the mapping relations in cell group between the root of ID and composition sequence index.

Optionally, when distributing running time-frequency resource for the synchronization signal of generation, the transmission unit is used for:

Based on existing protocol it is that the first PSS and the first SSS distribute running time-frequency resource, alternatively, for the first PSS and the One SS distributes the running time-frequency resource newly defined；

The time-frequency money different from the first PSS and the first SSS is distributed at least one set of 2nd PSS and the 2nd SSS Source；Alternatively, base station is the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distribute identical with the first PSS Running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, it distributes different from the first SSS Running time-frequency resource.

Optionally, further comprise:

Multiplexing Unit, for being distributed and the first PSS and first at least one set of 2nd PSS and the 2nd SSS It is the running time-frequency resource that the first PSS and the first SSS is distributed when the different running time-frequency resource of SSS, and is described at least one set of second The running time-frequency resource of PSS and the 2nd SSS distribution, realizes multiplexing by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

And for for the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distribution and the first PSS Identical running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, distribution and described first When the different running time-frequency resource of SSS, base station is the running time-frequency resource of the first SSS distribution, at least one set of 2nd PSS and The running time-frequency resource of the 2nd SSS distribution in 2nd SSS, realizes multiplexing by TDM mode or/and FDM mode.

Optionally, further comprise:

Notification unit, for the characteristic information in advance with terminal side agreement synchronization signal, the characteristic information is included at least The producing method of synchronization signal, the method for salary distribution of running time-frequency resource and transmit cycle；Alternatively,

For notifying the feature of synchronization signal to believe to terminal side by high-level signaling before sending the synchronization signal Breath, the characteristic information include at least producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of synchronization signal.

Optionally, the transmission unit is further used for:

When sending synchronization signal, CRS or CSI-RS is carried in the synchronization signal.

A kind of reception device of synchronization signal, comprising:

Receiving unit, for receiving the synchronization signal of base station transmission；Wherein, the synchronization signal is that the base station is based on certainly The network identity of body home network is generated according to the Physical Cell Identifier ID of the cell of itself administration for respective cell；

Synchronization unit, for being synchronized according to the synchronization signal received with respective cell.

It optionally, include the first primary synchronization signal PSS and the first auxiliary synchronization in the received synchronization signal of the receiving unit Signal SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

It optionally, include the first PSS and the first SSS in the received synchronization signal of the receiving unit, and at least one set of 2nd PSS and the 2nd SSS；Wherein,

Optionally, further comprise:

It is the base station distribution that the receiving unit, which receives the occupied running time-frequency resource of synchronization signal,；Wherein,

Optionally, further comprise:

Measuring unit, in synchronizing process, obtained from the synchronization signal the exclusive pilot signal CRS of cell or Channel state information reference signals CSI-RS, and RRM measurement is carried out based on the CRS or CSI-RS, and will be in measurement result It reports to base station.

The sending device of synchronization signal includes processor, transceiver and memory, in which:

Processor executes following process for reading the program in memory:

Network identity based on network of self home, according to itself administration each cell Physical Cell Identifier ID, Corresponding synchronization signal is generated for each cell respectively；And running time-frequency resource is distributed for the synchronization signal of generation, and will be each A synchronization signal is sent on corresponding running time-frequency resource.

Transceiver, for sending and receiving data under the control of a processor.

Optionally, small for one according to the physical district ID of a cell based on the network identity of network of self home When area generates corresponding synchronization signal, processor is used for:

A cell is generated based on the first mapping relations that existing protocol defines according to the physical district ID of a cell The first primary synchronization signal PSS and the first secondary synchronization signal SSS；

According to the physical district ID of a cell, the second mapping relations based on setting generate at least the one of a cell Group the 2nd PSS and the 2nd SSS, wherein the second mapping relations and the first mapping relations are identical or different, indicate in physical district ID Physical area group ID and composition sequence between mapping relations, and indicate physical district ID in physical area group in ID and Mapping relations between the root index of composition sequence；

And the network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, at least at least One group of the 2nd PSS and the 2nd SSS is scrambled.

Optionally, the network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, at least to extremely When few one group of the 2nd PSS and the 2nd SSS is scrambled, processor is used for:

Network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, according to setting sequence, divides It is other successively to be scrambled to the first PSS and the first SSS, and to each group of the 2nd PSS and the 2nd SSS；Alternatively,

Network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, according to setting sequence, divides It is other that each group of the 2nd PSS and the 2nd SSS is successively scrambled.

A cell is generated based on the first mapping relations that existing protocol defines according to the physical district ID of a cell The first PSS and the first SSS；

The mapping parameters of the network identity setting of corresponding network of self home are obtained, and corresponding based on mapping parameters acquisition At least a kind of third mapping relations, and based at least a kind of third mapping relations, generate at least one set second an of cell PSS and the 2nd SSS, wherein use mutually similar third mapping relations or inhomogeneity between the 2nd PSS and the 2nd SSS of difference group Third mapping relations, at least a kind of third mapping relations are different from the first mapping relations, indicate that the physics in physical district ID is small Mapping relations between district's groups ID and composition sequence, and indicate ID and composition sequence in the physical area group in physical district ID Root index between mapping relations.

Optionally, when distributing running time-frequency resource for the synchronization signal of generation, processor is used for:

It is that the first PSS and the first SSS distributes running time-frequency resource based on existing protocol, alternatively, for the first PSS and the first SS points With the running time-frequency resource newly defined；

The running time-frequency resource different from the first PSS and the first SSS is distributed for the 2nd PSS of at least one set and the 2nd SSS；Alternatively, Base station is the 2nd PSS at least one set the 2nd PSS and the 2nd SSS, distributes running time-frequency resource identical with the first PSS, Yi Jiwei The 2nd SSS at least one set the 2nd PSS and the 2nd SSS distributes the running time-frequency resource different from the first SSS.

Optionally, different running time-frequency resource is different orthogonal frequency division multiplex OFDM symbols and/or different subcarriers.

Optionally, further comprise:

Processor, when for distributing different from the first PSS and the first SSS for the 2nd PSS of at least one set and the 2nd SSS When frequency resource, it is the running time-frequency resource that the first PSS and the first SSS are distributed, and is distributed for the 2nd PSS of at least one set and the 2nd SSS Running time-frequency resource realizes multiplexing by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

And for for the 2nd PSS at least one set the 2nd PSS and the 2nd SSS, when distributing identical with the first PSS Frequency resource, and be the 2nd SSS at least one set the 2nd PSS and the 2nd SSS, distribute the running time-frequency resource different from the first SSS When, base station be the first SSS distribution running time-frequency resource, at least one set the 2nd PSS and the 2nd SSS the 2nd SSS distribute Running time-frequency resource realizes multiplexing by TDM mode or/and FDM mode.

Optionally, each group of the 2nd PSS and the 2nd SSS are occupied between running time-frequency resource position distribution sequence and between the time Every the distribution sequence and time interval between the running time-frequency resource position of the first PSS and the first SSS occupancy are identical or different.

Optionally, further comprise:

Processor, for the characteristic information in advance with terminal side agreement synchronization signal, characteristic information includes at least synchronous letter Number producing method, the method for salary distribution of running time-frequency resource and transmit cycle；Alternatively,

It is special for before sending synchronization signal, notifying the characteristic information of synchronization signal to terminal side by high-level signaling Reference breath includes at least producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of synchronization signal.

Optionally, processor is further used for:

When sending synchronization signal, CRS or CSI-RS is carried in synchronization signal.

Wherein, bus architecture may include the bus and bridge of any number of interconnection, one specifically represented by processor Or the various circuits of memory that multiple processors and memory represent link together.Bus architecture can also will be such as peripheral Various other circuits of equipment, voltage-stablizer and management circuit or the like link together, these are all well known in the art , therefore, it will not be further described herein.Bus interface provides interface.Transceiver can be multiple element, that is, wrap Transmitter and transceiver are included, the unit for communicating over a transmission medium with various other devices is provided.Processor is responsible for management Bus architecture and common processing, memory can store processor used data when executing operation.

Processor executes following process for reading the program in memory:

Receive the synchronization signal that base station is sent；Wherein, synchronization signal is network identity of the base station based on network of self home, According to the Physical Cell Identifier ID of the cell of itself administration, generated for respective cell；According to the synchronization signal that receives with Respective cell synchronizes.

Transceiver, for sending and receiving data under the control of a processor.

It optionally, include the first primary synchronization signal PSS and the first secondary synchronization signal in the received synchronization signal of processor SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

First PSS and the first SSS is base station to be generated based on the first mapping relations that existing protocol defines, and at least one set of the Two PSS and the 2nd SSS are second mapping relations generation of the base station based on setting, and at least one set the 2nd PSS and the 2nd SSS It is scrambled through base station using scrambler sequence, scrambler sequence is that base station is generated based on the network identity of network of self home；Its In, the second mapping relations and the first mapping relations are identical or different, indicate physical area group ID and composition in physical district ID Mapping relations between sequence, and indicate in the physical area group in physical district ID between the root of ID and composition sequence index Mapping relations.

Optionally, at least one set the 2nd PSS and the 2nd SSS is scrambled through base station using scrambler sequence, comprising:

First PSS and the first SSS and each group of the 2nd PSS and the 2nd SSS is the sequence by base station according to setting, adopts It is successively carried out with scrambler sequence scrambled；Alternatively,

Each group of the 2nd PSS and the 2nd SSS is the sequence by base station according to setting, is successively added using scrambler sequence It disturbs.

It optionally, include the first PSS and the first SSS, and the 2nd PSS of at least one set in the received synchronization signal of processor With the 2nd SSS；Wherein,

First PSS and the first SSS is base station to be generated based on the first mapping relations that existing protocol defines, and at least one set of the Two PSS and the 2nd SSS are that base station is generated based on the corresponding at least a kind of third mapping relations of preset mapping parameters, mapping ginseng Number is the network identity setting of respective base station network of self home；Wherein, it is adopted between the 2nd PSS and the 2nd SSS of different groups With mutually similar third mapping relations or inhomogeneity third mapping relations, at least a kind of third mapping relations and the first mapping relations are not Together, the mapping relations between the physical area group ID and composition sequence in physical district ID are indicated, and indicate physical district ID In physical area group in the root of ID and composition sequence index between mapping relations.

Optionally, further comprise:

It is base station distribution that processor, which receives the occupied running time-frequency resource of synchronization signal,；Wherein,

First PSS and the first occupied running time-frequency resource of SSS are the running time-frequency resources that base station is distributed based on existing protocol, or Person is the running time-frequency resource that base station newly defines；

The time-frequency that the running time-frequency resource and the first PSS and the first SSS that the 2nd PSS of at least one set and the 2nd SSS is occupied occupy provides Source is different；Alternatively, the 2nd PSS at least one set the 2nd PSS and the 2nd SSS, occupies running time-frequency resource identical with the first PSS, And the 2nd SSS at least one set the 2nd PSS and the 2nd SSS, occupy the running time-frequency resource different from the first SSS.

Optionally, the 2nd PSS of at least one set and the 2nd SSS occupies the running time-frequency resource different from the first PSS and the first SSS When, the running time-frequency resource that the first PSS and the first SSS are occupied, the running time-frequency resource occupied with the 2nd PSS of at least one set and the 2nd SSS, Multiplexing is realized by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

The 2nd PSS at least one set the 2nd PSS and the 2nd SSS occupies running time-frequency resource identical with the first PSS, and The 2nd SSS at least one set the 2nd PSS and the 2nd SSS, when occupying the running time-frequency resources different from the first SSS, the first SSS is accounted for The running time-frequency resource that the 2nd SSS in running time-frequency resource, at least one set the 2nd PSS and the 2nd SSS is occupied, passes through TDM mode Or/and FDM mode realizes multiplexing.

Optionally, further comprise:

Processor, for obtaining the exclusive pilot signal CRS of cell or channel shape from synchronization signal in synchronizing process State information reference signal CSI-RS, and RRM measurement is carried out based on CRS or CSI-RS, and measurement result is reported into base station.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of FDD frame in background of invention；

Fig. 2 is the structural schematic diagram of tdd frame in background of invention；

Fig. 3 is FDD synchronization signal time-frequency location schematic diagram in background of invention；

Fig. 4 is TDD synchronization signal time-frequency location schematic diagram in background of invention；

Fig. 5 is the general introduction flow chart that synchronization signal is sent in the embodiment of the present invention；

Fig. 6 is that the first synchronization signal scrambles schematic diagram in the embodiment of the present invention；

Fig. 7 is the general introduction flow chart of synchronous signal receiver in the embodiment of the present invention；

Fig. 8 is synchronization signal sending device structural schematic diagram in the embodiment of the present invention；

Fig. 9 is synchronous signal receiver apparatus structure schematic diagram in the embodiment of the present invention；

Figure 10 is synchronization signal sending entity apparatus structure schematic diagram in the embodiment of the present invention；

Figure 11 is synchronous signal receiver entity apparatus structural schematic diagram in the embodiment of the present invention.

Specific embodiment

In order to solve the problems, such as that cell measurement is obscured in the prior art, the present invention proposes a kind of transmission of synchronization signal, connects Receiving method and device, this method are as follows: network identity of the base station based on network of self home, each cell administered according to itself Physical Cell Identifier ID, generate corresponding synchronization signal for each cell respectively；Base station is the synchronization signal point generated It is sent on corresponding running time-frequency resource with running time-frequency resource, and by each synchronization signal.And terminal receives what base station was sent Synchronization signal；Wherein, synchronization signal is network identity of the base station based on network of self home, the cell administered according to itself Physical Cell Identifier ID, for respective cell generate；Terminal carries out same according to the synchronization signal and respective cell that receive Step.

The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.

As shown in fig.5, for the detailed process of synchronous transmission of signal in the present invention:

Step 500: network identity of the base station based on network of self home, according to the physics of each cell of itself administration Cell ID generates corresponding synchronization signal for each cell respectively.

Step 510: base station is the synchronization signal distribution running time-frequency resource generated, and by each synchronization signal in corresponding time-frequency It is sent in resource.

Specifically, base station can use when executing step 500 but be not limited to following two side in the embodiment of the present invention Method generates synchronization signal (being only illustrated by taking a cell as an example below) for each cell:

The first synchronizing signal generating method is (by taking cell A as an example): base station is based on according to the physical district ID of cell A The first mapping relations (mapping relations i.e. as shown in Table 2) that existing protocol defines generate the first PSS and first of cell A SSS, and further according to the physical district ID of cell A, the second mapping relations based on setting generate at least one set of cell A 2nd PSS and the 2nd SSS, then base station generates scrambler sequence based on the network identity of network of self home, and uses scrambling code sequence Column, at least scramble above-mentioned at least one set of 2nd PSS and the 2nd SSS.

Wherein, the second mapping relations and the first mapping relations are identical or different, they indicate the object in physical district ID The mapping relations (being similar to mapping relations shown in table 3) between cell group ID and composition sequence are managed, and indicate physical area Mapping relations in physical area group in ID between the root of ID and composition sequence index (are similar to map shown in table 2 and close System).

Specifically, can be for cell A at least one set the 2nd PSS and the 2nd SSS generated and be directed to what cell A was generated First PSS and the identical signal sequence of the first SSS (i.e. the first mapping relations are identical as the second mapping relations), are also possible to difference Signal sequence (i.e. the first mapping relations are different from the second mapping relations).Not for the second mapping relations and the first mapping relations Same situation has when base station generates the 2nd PSS and two SSS of at least one set for cell A using the second mapping relations of setting Body can use but be not limited to following method (by taking one group of the 2nd PSS and the 2nd SSS as an example):

It for the 2nd PSS, is still generated using Zadoff-Chu sequence, production method is same as the prior art, but uses It is indexed different from existing, further arranges the new of ID and composition sequence in the physical area group in physical district ID Mapping relations between root index.

It for the 2nd SSS, is still generated using m-sequence, production method is identical with the prior art, but existing using being different from It is small further to arrange physics for physical area group ID in physical district ID in technology and the mapping relations between composition sequence Physical area group ID in area ID and the mapping relations between new composition sequence.

Further, scrambler sequence is generated based on the network identity of network of self home in base station, and uses scrambler sequence, When at least scrambling at least one set the 2nd PSS and the 2nd SSS, it is specifically including but not limited to following two scrambling mode:

The first scrambling mode are as follows: base station generates scrambler sequence based on the network identity of network of self home, and uses and disturb Code sequence, according to setting sequence, respectively to the first PSS and the first SSS, and to each group of the 2nd PSS and the 2nd SSS successively into Row scrambling.

Second of scrambling mode are as follows: base station generates scrambler sequence based on the network identity of network of self home, and uses and disturb Code sequence respectively successively scrambles each group of the 2nd PSS and the 2nd SSS according to setting sequence.

For example, base station generates scrambler sequence based on the network identity of network of self home, which can be used The Gold sequence generated defined in 3GPP agreement 36.2117.2 section by 31 shift registers.The generation of the scrambler sequence Method is, if output sequence c (n) length is M_PN, wherein n=0,1 ..., M_PN- 1, then the formula that scrambler sequence generates are as follows:

C (n)=(x₁(n+N_C)+x₂(n+N_C))mod2

x₁(n+31)=(x₁(n+3)+x₁(n))mod2

x₂(n+31)=(x₂(n+3)+x₂(n+2)+x₂(n+1)+x₂(n))mod2

Wherein N_C=1600, c is by x for the scrambler sequence₁And x₂Two Sequence compositions, x₁(0)=1, x₁(n)=0, n=1, 2 ..., 30, indicate sequence x₁Initial value, and scrambler sequence x₂(n) initial value by cell home network network identity It determines.Such as,WhereinFor network identity, it is assumed that mobile for public land The network identity of network (Public Land Mobile Network, PLMN).Wherein, C_initValue be x₂Sequence it is initial Value.

The scrambler sequence of generation is carried out certain pretreatment by base station first, for example all numerical value 1 in sequence retain, All numerical value 0 replace with numerical value -1, obtain final scrambler sequence, and then scrambling processes here refer to finally disturbing generation Code sequence value bit corresponding with aforementioned PSS/SSS sequence is multiplied.

Further, for the first PSS of aforementioned generation and the first SSS and at least one set the 2nd PSS and the 2nd SSS, if The group number of 2nd PSS and the 2nd SSS is n, and note the first PSS and the first SSS is PSS₁And SSS₁, n group the 2nd PSS and the 2nd SSS Respectively PSS₂₁And SSS₂₁、PSS₂₂And SSS₂₂、……PSS_2iAnd SSS_2i、……PSS_2NAnd SSS_2N.2nd PSS and the 2nd SSS Serial number and the relationship of running time-frequency resource be predefined or notified by base station to terminal.

As shown in fig.6, being provided in figure a kind of comprising the first PSS and the first SSS and 5 the 2nd PSS and the 2nd SSS The scrambling example of synchronization signal.

Scrambler sequence is generated based on the network identity of network of self home in base station, and is scrambled using scrambler sequence When, it specifically can be used but be not limited to following two scrambling mode:

The first scrambling mode are as follows: by the first PSS and the first SSS and group the 2nd PSS and the 2nd SSS according to setting sequence into Row scrambling, setting sequence herein can be according to the first PSS and the first SSS and n group the 2nd PSS and the 2nd SSS map when The scrambling order that frequency resource location determines, e.g., by the first PSS and the first SSS and n group the 2nd PSS and the 2nd SSS according to first frequency The incremental sequence of time-domain is scrambled after rate domain is incremented by, and e.g., by taking synchronization signal shown in fig. 6 as an example, base station is according to [SSS₂₁S SS₁SSS₂₂PSS₂₁PSS₁PSS₂₂SSS₂₃SSS₂₄SSS₂₅PSS₂₃PSS₂₄PSS₂₅] sequence scrambled.

Second of scrambling mode: the first PSS and the first SSS are not scrambled, only the 2nd all PSS and the 2nd SSS are pressed It is scrambled according to setting sequence, setting sequence herein can be the running time-frequency resource according to each 2nd PSS and the 2nd SSS mapping The scrambling order that position determines, e.g., the incremental sequence of time-domain after n group the 2nd PSS and the 2nd SSS is incremented by according to first frequency domain It is scrambled, e.g., by taking synchronization signal shown in fig. 6 as an example, base station is according to [SSS₂₁SSS₂₂PSS₂₁PSS₂₂SSS₂₃SSS₂₄SSS₂₅P SS₂₃PSS₂₄PSS₂₅] sequence scrambled.

In addition to the generation method of above-mentioned synchronization signal, in the embodiment of the present invention, additionally provides second method generation and be directed to The synchronization signal of each cell.

Second of synchronizing signal generating method is (still by taking cell A as an example): physical district ID of the base station according to cell A, base In the first mapping relations that existing protocol defines, the first PSS and the first SSS of cell A are generated, further, base station acquisition pair The mapping parameters for answering the network identity of network of self home to be arranged, and corresponding at least a kind of third is obtained based on the mapping parameters Mapping relations, and at least a kind of third mapping relations based on acquisition, generate at least one set the 2nd PSS and second of cell A SSS。

Wherein, it is reflected between the 2nd PSS and the 2nd SSS of different groups using mutually similar third mapping relations or inhomogeneity third Relationship is penetrated, third mapping relations are different from the first mapping relations, but indicate the physical area group ID and group in physical district ID At the mapping relations (being similar to mapping relations shown in table 3) between sequence, and indicate the physical area in physical district ID Mapping relations (being similar to mapping relations shown in table 2) in group between the root of ID and composition sequence index.

Specifically, can specifically use but be not limited to when base station generates the 2nd PSS and two SSS of at least one set of cell A Following method (by taking one group of the 2nd PSS and the 2nd SSS as an example):

Firstly, for the 2nd PSS, still being generated using Zadoff-Chu sequence, production method is same as the prior art, but Using existing index is different from, further, the new root of ID and composition sequence is indexed in agreement physical-layer cell ID group Between mapping relations, and each new corresponding mapping parameters of root index group (the new identification information set) of agreement, And establish the mapping relations between each network identity and the mapping parameters of new root index group.Herein network identity can with it is new Root index group mapping parameters between can establish one-to-one relationship, also can establish one-to-many relationship.

It for the 2nd SSS, is still generated using m-sequence, production method is identical with the prior art, but existing using being different from Physical area group ID in physical district ID in technology and the mapping relations between composition sequence further arrange physics Physical area group ID in cell ID and the mapping relations between new composition sequence, and arrange the mapping of new composition sequence Parameter, and establish the mapping relations between each network identity and the mapping parameters of new composition sequence.Equally, network mark herein Knowledge can establish one-to-one relationship between the mapping parameters of new composition sequence, also can establish one-to-many relationship. Therefore, base station, which adopts this method, can be generated multiclass combination third mapping relations abundant.

Then, base station obtains the mapping parameters of the network identity setting of corresponding network of self home, and is joined based on the mapping Number obtains corresponding at least a kind of third mapping relations, and at least a kind of third mapping relations based on acquisition.

Table 4 extend primary synchronization signal PSS root index withCorresponding relationship

Table 5 extend secondary synchronization signal SSS composition sequence withCorresponding relationship

In one embodiment, refering to shown in table 4, define the new root index group of N kind withCorresponding relationship, and arrange The mapping parameters of N number of new root index group, 0~3, it establishes between each network identity and the mapping parameters of new root index group Mapping relations.It should be noted that the corresponding relationship numerical value in table 4 is only as an example, the corresponding pass in following table can be not limited to System.

Refering to shown in table 5, define the new composition sequence of N kind withCorresponding relationship, and arrange N number of new composition sequence Mapping parameters, 0~3, establish the mapping relations between each network identity and the mapping parameters of new composition sequence.Equally, Corresponding relationship numerical value in table 5 is only as an example, the corresponding relationship in following table can be not limited to.

For example, the network identity of base station network of self home is a, and network identity is root index group new corresponding to a Mapping parameters be 0, the mapping parameters of new composition sequence corresponding to network identity a are 0, collectively form third mapping and close System, therefore, using the mapping parameters of new root index group for 0 root index group and the mapping parameters of new composition sequence is 0 Sequence (this be a kind of third mapping relations), generate at least one set the 2nd PSS and the 2nd SSS for being directed to cell A.

In another example the network identity of base station network of self home is a, and network identity is new corresponding to the network of a The mapping parameters of root index group are 0 and 1, and the mapping parameters of new composition sequence corresponding to network identity a are 0 and 1, common structure At third mapping relations, therefore, use the mapping parameters of new root index group for 0 or 1 root index group and new composition sequence The sequence (this is two class third mapping relations) that the mapping parameters of column are 0 and 1 generates the 2nd PSS of at least one set for being directed to cell A With the 2nd SSS.

Specifically, for generating two group of the 2nd PSS and the 2nd SSS, base station use mapping parameters for 0 new root rope Draw new composition sequence that group and mapping parameters are 0 as first kind third mapping relations, first group of the 2nd PSS of generation and the Two SSS, the new composition sequence that base station uses mapping parameters to be 2 for 2 new root index group and mapping parameters is the second class Third mapping relations generate second group of the 2nd PSS and the 2nd SSS.

Therefore, each group the 2nd PSS and the 2nd SSS can be generated using same class third mapping relations, can also be using not Similar third mapping relations generate.

Such as: base station uses the root index group and the mapping parameters that are identified as 0 to map for 0 composition sequence as third and closes System generates at least one set the 2nd PSS and the 2nd SSS for cell A, at this point, all 2nd PSS and the 2nd SSS are using identical Third mapping relations can reinforce the signal strength of synchronization signal, be conducive to terminal and preferably receive and parse through synchronization signal.

In another example can be embodied by the combination of inhomogeneity third mapping relations in the case where more than operator's quantity Operator identity, e.g., the new composition sequence that the root index group and mapping parameters that base station maps parameter is 0 are 0 is as first Class third mapping relations generate first group of the 2nd PSS and the 2nd SSS, base station use mapping parameters for 2 root index group and reflect Penetrating the new composition sequence that parameter is 2 is second group of the 2nd PSS and the 2nd SSS that the second class third mapping relations generate cell A, This 02 syntagmatic represents operator A；

Similarly, base station use mapping parameters for 1 root index group and mapping parameters be 1 new composition sequence as A kind of third mapping relations generate first group of the 2nd PSS and the 2nd SSS, base station use mapping parameters for 2 root index group and The new composition sequence that mapping parameters are 2 generates second group of the 2nd PSS and the 2nd SSS as the second class third mapping relations, this The syntagmatic of kind 12 represents operator B.

, to analogize, base station can generate different groups of the 2nd PSS and second using inhomogeneous third mapping relations for this SSS can be realized the support to more multi-operator in this way.Preferably, if using N group the 2nd PSS and the 2nd SSS, and every group Using different mapping parameters, then said combination mode is used, it can be to 2^NPower operator is identified.

Specifically, base station is when executing step 510, when base station is the synchronization signal distribution generated in the embodiment of the present invention Frequency resource, and each synchronization signal is sent on corresponding running time-frequency resource.

For the first PSS and the first SSS, it is that the first PSS and the first SSS distributes running time-frequency resource that base station, which is based on existing protocol, Alternatively, distributing the running time-frequency resource newly defined for the first PSS and the first SSS；

Specifically, the first PSS and the first SSS is under 3GPP LTE protocol release 11 and its pervious version definition Line synchronising signal PSS and SSS.Running time-frequency resource shared by first PSS and the first SSS can use 3GPP LTE protocol release 11 and its pervious version as defined in resource, be also possible to the running time-frequency resource position newly defined.

For at least one set the 2nd PSS and the 2nd SSS, base station is 2nd PSS of at least one set and the 2nd SSS distribution and the One PSS and the first SSS different running time-frequency resources；Alternatively, base station is the 2nd PSS at least one set the 2nd PSS and the 2nd SSS, Distribute identical with the first PSS running time-frequency resource, and be the 2nd SSS at least one set 2nd PSS and the 2nd SSS, distribute and First SSS different running time-frequency resources.

Specifically, different running time-frequency resource mentioned here, is different OFDM symbols and/or different subcarriers.

In addition, base station is that the 2nd PSS of at least one set and the 2nd SSS distributes the time-frequency different from the first PSS and the first SSS When resource, base station is the running time-frequency resource that the first PSS and the first SSS is distributed, and is distributed with for the 2nd PSS of at least one set and the 2nd SSS Running time-frequency resource, pass through time division multiplexing (Time Division Multiplexing, TDM) mode or/and frequency division multiplexing (Frequency Division Multiplexing, FDM mode realizes multiplexing.

For example, the running time-frequency resource and the first PSS that are occupied for one group of the 2nd PSS and the 2nd SSS, the 2nd PSS and the 2nd SSS Multiplex mode with the first SSS running time-frequency resource occupied is using TDM mode, i.e. the 2nd PSS and the 2nd SSS and the first PSS and the One SSS occupies identical frequency but occupies different time-domain symbols.

By taking FDD-LTE system as an example, if running time-frequency resource shared by the first PSS and the first SSS can be assisted using 3GPP LTE Resource as defined in release 11 and its pervious version is discussed, then the first PSS and the first SSS are respectively in the son of each radio frames Most latter two OFDM symbol is sent in first time slot in frame 0, subframe 5, at this point, the 2nd PSS and the 2nd SSS can be first Other symbols outside OFDM symbol shared by PSS and the first SSS are sent, e.g., first in the subframe 0, subframe 5 of each radio frames The first two OFDM symbol is sent in a time slot.

In another example for one group of the 2nd PSS and the 2nd SSS, the running time-frequency resource and first of the 2nd PSS and the 2nd SSS occupancy The multiplex mode for the running time-frequency resource that PSS and the first SSS are occupied uses FDM mode, i.e. the 2nd PSS and the 2nd SSS and the first PSS and First SSS occupies different frequencies.Assuming that the first PSS and the first SSS is transmitted on 6 PRB in LTE system bandwidth center, then 2nd PSS and the 2nd SSS occupies other PRB in addition to 6 PRB in LTE system bandwidth center.

More preferably, there is shared by one group of the 2nd PSS and the 2nd SSS and the first PSS and the first SSS frequency between running time-frequency resource When point multiplexing relationship, the integral multiple of non-100KHz is can be used in the centre frequency of frequency resource shared by the 2nd PSS and the 2nd SSS, For example, the centre frequency of frequency resource shared by the 2nd PSS and the 2nd SSS at a distance of system bandwidth centre frequency be 1.08MHz, 2.16MHz waiting.It, in this way can be to avoid as the 2nd PSS since conventional terminal is to carry out cell searching according to the interval of 100KHz When using identical composition sequence with the 2nd SSS and the first PSS and the first SSS, the search of conventional cell is impacted.

In addition, it is also pointed out that, the 2nd PSS of different community and the 2nd SSS can occupy identical running time-frequency resource, can also be with Occupy different running time-frequency resources.When the 2nd PSS of different community and the 2nd SSS occupies identical running time-frequency resource, can use Existing code point mode is multiplexed；It is different when the 2nd PSS of different community and the 2nd SSS occupy different running time-frequency resources 2nd PSS of cell and the 2nd SSS can be multiplexed by the way of above-mentioned TDM or FDM.

On the other hand, base station is the 2nd PSS at least one set the 2nd PSS and the 2nd SSS, is distributed identical as the first PSS Running time-frequency resource, and be the 2nd SSS at least one set the 2nd PSS and the 2nd SSS, distribute the time-frequency different from the first SSS When resource, base station be the first SSS distribution running time-frequency resource, at least one set PSS and the 2nd SSS the 2nd SSS distribute Running time-frequency resource realizes multiplexing by TDM mode or/and FDM mode.It is similar to above-mentioned multiplex process herein therefore no longer superfluous It states.

Further, between the running time-frequency resource position that base station can also be occupied for each group of the 2nd PSS and the 2nd SSS Distribution sequence and time interval are configured, specifically, base station can be provided using the time-frequency occupied with the first PSS and the first SSS The identical rule of distribution sequence and time interval between source position is configured, and can also be carried out using different rule Configuration.

Specifically, by taking one group of the 2nd PSS and the 2nd SSS as an example, between time-frequency location occupied by the 2nd PSS and the 2nd SSS Distribution sequence and time interval, distribution sequence between time-frequency location occupied by the first PSS and the first SSS and between the time Every can be the same or different.For example, it may be the OFDM symbol shared by preceding, the 2nd PSS of OFDM symbol shared by the 2nd SSS Rear, it is also possible to the OFDM symbol shared by preceding, the 2nd SSS of OFDM symbol shared by the 2nd PSS rear；Alternatively, shared by the 2nd PSS Mark space between OFDM symbol shared by OFDM symbol and the 2nd SSS, with OFDM symbol and first shared by the first PSS signal Mark space between OFDM symbol shared by SSS, can be the same or different.

Optionally, in the 2nd PSS and the 2nd SSS, if OFDM shared by OFDM symbol shared by the 2nd PSS and the 2nd SSS is accorded with In mark space between number, with the first PSS and the first SSS, OFDM symbol shared by the first PSS is accorded with OFDM shared by the first SSS When mark space difference between number, there can be the optional implementation of the following two kinds:

1) according to TDD-LTE system, then in the 2nd PSS and the 2nd SSS, OFDM symbol and second shared by the 2nd PSS In mark space between OFDM symbol shared by SSS, with existing TDD-LTE system, the first PSS in the first PSS and the first SSS Mark space between OFDM symbol shared by signal and OFDM symbol shared by the first SSS is different.

According to FDD-LTE system, then in the 2nd PSS and the 2nd SSS, OFDM symbol and second shared by the 2nd PSS In mark space between OFDM symbol shared by SSS, with existing FDD-LTE system, the first PSS institute in the first PSS and the first SSS The mark space accounted between OFDM symbol and the symbol of OFDM symbol shared by the first SSS is different.

2) no matter TDD-LTE system or FDD-LTE system are used, in the 2nd PSS and the 2nd SSS, shared by the 2nd PSS Mark space between OFDM symbol shared by OFDM symbol and the 2nd SSS, in existing TDD-LTE or FDD-LTE system, Mark space in one PSS and the first SSS between OFDM symbol shared by OFDM symbol shared by the first PSS and the 2nd SSS is not Together.

In addition, base station specifically can be used but be not limited to following two mode, terminal side is made to know the feature letter of synchronization signal Breath:

First, the characteristic information of synchronization signal is arranged in base station with terminal side in advance.

Second, before sending the synchronization signal, the spy of synchronization signal is notified by high-level signaling to terminal side for base station Reference breath.

Wherein, the characteristic information meaning in above two mode is identical, including at least synchronization signal producing method, when The method of salary distribution and transmit cycle of frequency resource.High-level signaling can be wireless heterogeneous networks (Radio Resource herein Control, RRC) signaling.

Base station carries the exclusive pilot signal (Cell-specific of cell when sending synchronization signal in synchronization signal Reference signals, CRS) or channel state information reference signals (Channel Status Information Reference Signal, CSI-RS).

As shown in fig.7, for the method for reseptance of the synchronization signal in the embodiment of the present invention, comprising:

Step 700: terminal receives the synchronization signal that base station is sent；Wherein, synchronization signal is that base station is based on own home net The network identity of network is generated according to the physical district ID of the cell of itself administration for respective cell；

Step 710: terminal is synchronized according to the synchronization signal received with respective cell.

In the process, terminal parses the physical district ID of the cell of corresponding synchronization signal according to synchronization signal, and on It reports to base station.

Wherein, the received synchronization signal of terminal, synchronization signal here include, but is not limited to following two situation.

The first synchronization signal includes the first PSS and the first SSS, and at least one set the 2nd PSS and the 2nd SSS.

Wherein, the first PSS and the first SSS is that base station is generated based on the first mapping relations that existing protocol defines, at least One group of the 2nd PSS and the 2nd SSS be base station the second mapping relations based on setting generate, and 2nd PSS of at least one set with 2nd SSS is scrambled through base station using scrambler sequence, and scrambler sequence is that network identity of the base station based on network of self home is raw At.

Here the second mapping relations and the first mapping relations are identical or different, indicate the physical area in physical district ID Mapping relations between group ID and composition sequence, and indicate ID and composition sequence in the physical area group in physical district ID Mapping relations between root index.

In addition, at least one set the 2nd PSS and the 2nd SSS is scrambled through base station using scrambler sequence, including but not limited to Following two mode:

The first scrambling mode are as follows: the first PSS and the first SSS and each group of the 2nd PSS and the 2nd SSS is by base The sequence stood according to setting is successively carried out scrambled using scrambler sequence.

Second of scrambling mode are as follows: each group of the 2nd PSS and the 2nd SSS is the sequence by base station according to setting, using disturbing Code sequence successively carries out scrambled.

Second of synchronization signal includes the first PSS and the first SSS, and at least one set the 2nd PSS and the 2nd SSS.

Wherein, the first PSS and the first SSS is that base station is generated based on the first mapping relations that existing protocol defines, at least One group of the 2nd PSS and the 2nd SSS is that base station is generated based on the corresponding at least a kind of third mapping relations of preset mapping parameters, Mapping parameters are the network identity settings of respective base station network of self home.

Here mutually similar third mapping relations or inhomogeneity third are used between the 2nd PSS and the 2nd SSS of different groups Mapping relations, at least a kind of third mapping relations are different from the first mapping relations, they indicate the physics in physical district ID Mapping relations between cell group ID and composition sequence, and indicate ID and composition sequence in the physical area group in physical district ID Mapping relations between the root index of column.

In addition, it is base station distribution that terminal, which receives the occupied running time-frequency resource of synchronization signal,.

Wherein, the first PSS and the first occupied running time-frequency resource of SSS are the time-frequency money that base station is distributed based on existing protocol Source, alternatively, being the running time-frequency resource that base station newly defines.

Here different running time-frequency resources are different OFDM symbols and/or different subcarriers.

Further, the 2nd PSS of at least one set and the 2nd SSS occupies the running time-frequency resource different from the first PSS and the first SSS When, the running time-frequency resource that the first PSS and the first SSS are occupied, the running time-frequency resource occupied with the 2nd PSS of at least one set and the 2nd SSS, Multiplexing is realized by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode.

In addition, distribution sequence between the running time-frequency resource position that each group of the 2nd PSS and the 2nd SSS are occupied and between the time Every the distribution sequence and time interval between the running time-frequency resource position of the first PSS and the first SSS occupancy are identical or different.

In addition, the characteristic information of synchronization signal is known in terminal side, it can be used but be not limited to following two mode:

First, the characteristic information with base station agreement synchronization signal, characteristic information include at least synchronization signal to terminal in advance Producing method, the method for salary distribution of running time-frequency resource and transmit cycle.

Second, terminal before receiving synchronization signal, receives the feature for the synchronization signal that base station is notified by high-level signaling Information, characteristic information include at least producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of synchronization signal.

In synchronizing process, terminal obtains CRS or CSI-RS from synchronization signal, and is carried out based on CRS or CSI-RS RRM measurement, and measurement result is reported into base station.

Here RRM measurement include Reference Signal Received Power (Reference signal received power, RSRP) and/or Reference Signal Received Quality (Reference Signal Received Quality, RSRQ) measures.

When terminal detects the synchronization signal of multiple cells, according to the synchronization signal analysis to each cell as a result, really The physical district ID of fixed each cell determines that optimal access is small according further to the RRM measurement result to each cell Area.

As shown in fig.8, a kind of sending device of synchronization signal, comprising:

Generation unit 80, for the network identity based on network of self home, according to each cell of itself administration Physical Cell Identifier ID generates corresponding synchronization signal for each cell respectively；

Transmission unit 81, for the synchronization signal distribution running time-frequency resource to generate, and by each synchronization signal corresponding It is sent on running time-frequency resource.

Optionally, small for one according to the physical district ID of a cell based on the network identity of network of self home When area generates corresponding synchronization signal, generation unit 80 is used for:

Optionally, the network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, at least to extremely When few one group of the 2nd PSS and the 2nd SSS is scrambled, generation unit 80 is used for:

Optionally, small for one according to the physical district ID of a cell based on the network identity of network of self home When area generates corresponding synchronization signal, generation unit is used for:

Optionally, when distributing running time-frequency resource for the synchronization signal of generation, transmission unit 81 is used for:

Optionally, further comprise:

Multiplexing Unit 82, it is different from the first PSS and the first SSS for being distributed for the 2nd PSS of at least one set and the 2nd SSS When running time-frequency resource, it is the running time-frequency resource that the first PSS and the first SSS is distributed, is distributed with for the 2nd PSS of at least one set and the 2nd SSS Running time-frequency resource, multiplexing is realized by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

Optionally, further comprise:

Notification unit 83, for the characteristic information in advance with terminal side agreement synchronization signal, characteristic information includes at least same Walk producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of signal；Alternatively,

Optionally, transmission unit 81 is further used for:

As shown in fig.9, a kind of reception device of synchronization signal, comprising:

Receiving unit 90, for receiving the synchronization signal of base station transmission；Wherein, synchronization signal is that base station is based on own home The network identity of network is generated according to the Physical Cell Identifier ID of the cell of itself administration for respective cell；

Synchronization unit 91, for being synchronized according to the synchronization signal received with respective cell.

It optionally, include the auxiliary synchronous letter of the first primary synchronization signal PSS and first in the received synchronization signal of receiving unit 90 Number SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

It optionally, include the first PSS and the first SSS in the received synchronization signal of receiving unit 90, and at least one set of the Two PSS and the 2nd SSS；Wherein,

Optionally, further comprise:

It is base station distribution that receiving unit 90, which receives the occupied running time-frequency resource of synchronization signal,；Wherein,

Optionally, further comprise:

Measuring unit 92, for obtaining the exclusive pilot signal CRS of cell or letter from synchronization signal in synchronizing process Channel state information reference signal CSI-RS, and RRM measurement is carried out based on CRS or CSI-RS, and measurement result is reported into base It stands.

As shown in fig.10, the sending device of synchronization signal includes processor 1000, transceiver 1010 and memory 1020, Wherein:

Processor 1000 executes following process for reading the program in memory:

Transceiver 1010, for sending and receiving data under the control of a processor.

Optionally, small for one according to the physical district ID of a cell based on the network identity of network of self home When area generates corresponding synchronization signal, processor 1000 is used for:

Optionally, the network identity based on network of self home generates scrambler sequence, and uses scrambler sequence, at least to extremely When few one group of the 2nd PSS and the 2nd SSS is scrambled, processor 1000 is used for:

Optionally, when distributing running time-frequency resource for the synchronization signal of generation, processor 1000 is used for:

Optionally, further comprise:

Processor 1000, it is different from the first PSS and the first SSS for being distributed for the 2nd PSS of at least one set and the 2nd SSS When running time-frequency resource, it is the running time-frequency resource that the first PSS and the first SSS is distributed, is distributed with for the 2nd PSS of at least one set and the 2nd SSS Running time-frequency resource, multiplexing is realized by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

Optionally, further comprise:

Processor 1000, for the characteristic information in advance with terminal side agreement synchronization signal, characteristic information includes at least same Walk producing method, the method for salary distribution of running time-frequency resource and the transmit cycle of signal；Alternatively,

Optionally, processor 1000 is further used for:

Refering to fig. 1 shown in 1, the sending device of synchronization signal includes processor 1100, transceiver 1110 and memory 1120, Wherein:

Processor 1100 executes following process for reading the program in memory:

Transceiver 1110, for sending and receiving data under the control of a processor.

It optionally, include the auxiliary synchronous letter of the first primary synchronization signal PSS and first in the received synchronization signal of processor 1100 Number SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

It optionally, include the first PSS and the first SSS in the received synchronization signal of processor 1100, and at least one set of the Two PSS and the 2nd SSS；Wherein,

Optionally, further comprise:

It is base station distribution that processor 1100, which receives the occupied running time-frequency resource of synchronization signal,；Wherein,

Optionally, further comprise:

Processor 1100, for obtaining the exclusive pilot signal CRS of cell or letter from synchronization signal in synchronizing process Channel state information reference signal CSI-RS, and RRM measurement is carried out based on CRS or CSI-RS, and measurement result is reported into base It stands.

In conclusion using the sending, receiving method and device of a kind of synchronization signal in the embodiment of the present invention, base station is based on The network identity of network of self home, according to the Physical Cell Identifier ID of each cell of itself administration, respectively for each A cell generates corresponding synchronization signal；Base station is the synchronization signal distribution running time-frequency resource generated, and each synchronization signal is existed It is sent on corresponding running time-frequency resource.And terminal receives the synchronization signal that base station is sent；Wherein, synchronization signal is described Network identity of the base station based on network of self home, according to the Physical Cell Identifier ID of the cell of itself administration, for corresponding small Area generates；Terminal is synchronized according to the synchronization signal received with respective cell, is solved cell measurement in the prior art and is obscured The problem of.

It is also related with network identity since synchronization signal is not only related with cell ID.When being therefore applied to unauthorized frequency range, Even if there is multiple operators with deployment is closed on frequently, the synchronization signal of multiple operators is also different, and avoiding problems terminal surveys Measure confounding issues when synchronization signal.In addition, simultaneously using the first PSS and the first SSS and at least one set the 2nd PSS and second SSS can promote terminal to the detection performance and RRM measurement performance of cell.

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 computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

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 can be realized by computer program instructions each in flowchart and/or the block diagram The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computers Processor of the program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices To generate a machine, so that generating use by the instruction that computer or the processor of other programmable data processing devices execute In the dress for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram It sets.

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.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of sending method of synchronization signal characterized by comprising

Network identity of the base station based on network of self home, according to itself administration each cell Physical Cell Identifier ID, Corresponding synchronization signal is generated for each cell respectively；

Base station is the synchronization signal distribution running time-frequency resource generated, and each synchronization signal is sent out on corresponding running time-frequency resource It send.

2. the method as described in claim 1, which is characterized in that network identity of the base station based on network of self home, according to one The physical district ID of a cell generates corresponding synchronization signal for one cell, comprising:

Base station is according to the physical district ID of one cell, based on the first mapping relations that existing protocol defines, described in generation The the first primary synchronization signal PSS and the first secondary synchronization signal SSS of one cell；

According to the physical district ID of one cell, the second mapping relations based on setting generate one cell for base station At least one set the 2nd PSS and the 2nd SSS, wherein second mapping relations and first mapping relations are identical or different, It indicates the mapping relations between the physical area group ID and composition sequence in physical district ID, and indicates in physical district ID Mapping relations in the group of physical area between the root of ID and composition sequence index；

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, at least to described At least one set the 2nd PSS and the 2nd SSS is scrambled.

3. method according to claim 2, which is characterized in that base station generates scrambling code based on the network identity of network of self home Sequence, and the scrambler sequence is used, at least at least one set of 2nd PSS and the 2nd SSS is scrambled, comprising:

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, suitable according to setting Sequence respectively to the first PSS and the first SSS, and successively scrambles each group of the 2nd PSS and the 2nd SSS；Alternatively,

Base station generates scrambler sequence based on the network identity of network of self home, and uses the scrambler sequence, suitable according to setting Sequence respectively successively scrambles each group of the 2nd PSS and the 2nd SSS.

4. the method as described in claim 1, which is characterized in that network identity of the base station based on network of self home, according to one The physical district ID of a cell generates corresponding synchronization signal for one cell, comprising:

Base station is according to the physical district ID of one cell, based on the first mapping relations that existing protocol defines, described in generation The first PSS and the first SSS of one cell；

Base station obtains the mapping parameters of the network identity setting of corresponding network of self home, and obtains phase based on the mapping parameters At least a kind of third mapping relations answered, and based at least a kind of third mapping relations, generate one cell At least one set the 2nd PSS and the 2nd SSS, wherein mapped between the 2nd PSS and the 2nd SSS of difference group using mutually similar third Relationship or inhomogeneity third mapping relations, at least a kind of third mapping relations are different from first mapping relations, indicate Physical area group ID in physical district ID and the mapping relations between composition sequence, and indicate the physics in physical district ID Mapping relations in cell group between the root of ID and composition sequence index.

5. the method as described in claim 2,3 or 4, which is characterized in that base station is the synchronization signal distribution running time-frequency resource generated, Include:

Base station is based on existing protocol and is that the first PSS and the first SSS distribute running time-frequency resource, alternatively, for the first PSS and the One SSS distributes the running time-frequency resource newly defined；

Base station is that at least one set of 2nd PSS and the 2nd SSS distributes the time-frequency money different from the first PSS and the first SSS Source；Alternatively, base station is the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distribute identical with the first PSS Running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, it distributes different from the first SSS Running time-frequency resource.

6. method as claimed in claim 5, which is characterized in that the different running time-frequency resource is different orthogonal frequency division multiplexing With OFDM symbol and/or different subcarriers.

7. method as claimed in claim 6, which is characterized in that base station is that at least one set of 2nd PSS and the 2nd SSS is distributed When different from the first PSS and the first SSS running time-frequency resource, base station is the time-frequency money that the first PSS and the first SSS is distributed Source, the running time-frequency resource at least one set of 2nd PSS and the 2nd SSS distribution, passes through time division multiplexing tdm mode or/and frequency Multiplexing FDM mode is divided to realize multiplexing；

Base station is the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distributes time-frequency identical with the first PSS Resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, when distributing different from the first SSS When frequency resource, base station is the running time-frequency resource of the first SSS distribution, and at least one set of 2nd PSS and the 2nd SSS The running time-frequency resource of 2nd SSS distribution, realizes multiplexing by TDM mode or/and FDM mode.

8. method as claimed in claim 5, which is characterized in that the running time-frequency resource position that each group of the 2nd PSS and the 2nd SSS is occupied Distribution sequence and time interval between setting, the distribution between running time-frequency resource position occupied with the first PSS and the first SSS Sequence and time interval are identical or different.

9. such as the described in any item methods of claim 1-4,6-8, which is characterized in that further comprise:

The characteristic information with terminal side agreement synchronization signal, the characteristic information include at least the generation of synchronization signal in advance for base station Mode, the method for salary distribution of running time-frequency resource and transmit cycle；Alternatively,

Base station notifies the characteristic information of synchronization signal, institute by high-level signaling before sending the synchronization signal to terminal side State producing method, the method for salary distribution of running time-frequency resource and transmit cycle that characteristic information includes at least synchronization signal.

10. method as claimed in claim 9, which is characterized in that base station is when sending synchronization signal, in the synchronization signal Carry the exclusive pilot signal CRS of cell or channel state information reference signals

CSI-RS。

11. a kind of method of reseptance of synchronization signal characterized by comprising

Terminal receives the synchronization signal that base station is sent；Wherein, the synchronization signal is the base station based on network of self home Network identity is generated according to the Physical Cell Identifier ID of the cell of itself administration for respective cell；

12. method as claimed in claim 11, which is characterized in that include the first main synchronous letter in the received synchronization signal of terminal Number PSS and the first secondary synchronization signal SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

First PSS and the first SSS is that the base station is generated based on the first mapping relations that existing protocol defines, it is described extremely Few one group of the 2nd PSS and the 2nd SSS is that the base station is generated based on the second mapping relations of setting, and at least described at least One group of the 2nd PSS and the 2nd SSS is scrambled through the base station using scrambler sequence, and the scrambler sequence is that the base station is based on What the network identity of network of self home generated；Wherein, second mapping relations are identical as first mapping relations or not Together, the mapping relations between the physical area group ID and composition sequence in physical district ID are indicated, and indicate physical district ID In physical area group in the root of ID and composition sequence index between mapping relations.

13. method as claimed in claim 12, which is characterized in that at least described at least one set of 2nd PSS and the 2nd SSS is through institute Base station is stated to be scrambled using scrambler sequence, comprising:

First PSS and the first SSS and each group of the 2nd PSS and the 2nd SSS is by the base station according to the suitable of setting Sequence is successively carried out scrambled using the scrambler sequence；Alternatively,

Each group of the 2nd PSS and the 2nd SSS is the sequence by the base station according to setting, using the scrambler sequence successively into Row is scrambled.

14. method as claimed in claim 11, which is characterized in that include the first PSS and the in the received synchronization signal of terminal One SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

First PSS and the first SSS is that base station is generated based on the first mapping relations that existing protocol defines, described at least one Group the 2nd PSS and the 2nd SSS is that base station is generated based on the corresponding at least a kind of third mapping relations of preset mapping parameters, institute State the network identity setting that mapping parameters are respective base station network of self home；Wherein, the 2nd PSS and second of different groups Use mutually similar third mapping relations or inhomogeneity third mapping relations between SSS, at least a kind of third mapping relations and First mapping relations are different, indicate the mapping relations between the physical area group ID and composition sequence in physical district ID, And the mapping relations in the physical area group in expression physical district ID between the root of ID and composition sequence index.

15. the method as described in claim 12,13 or 14, which is characterized in that further comprise:

First PSS and the first occupied running time-frequency resource of SSS are the running time-frequency resources that the base station is distributed based on existing protocol, or Person is the running time-frequency resource that the base station newly defines；

The running time-frequency resource and the first PSS and the first SSS that at least one set of 2nd PSS and the 2nd SSS are occupied occupy when Frequency resource is different；Alternatively, the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, occupies identical as the first PSS Running time-frequency resource and at least one set of 2nd PSS and the 2nd SSS in the 2nd SSS, occupy it is different from the first SSS Running time-frequency resource.

16. method as claimed in claim 15, which is characterized in that the different running time-frequency resource is different orthogonal frequency It is multiplexed OFDM symbol and/or different subcarriers.

17. the method described in claim 16, which is characterized in that at least one set of 2nd PSS and the 2nd SSS is occupied and institute When stating the different running time-frequency resource of the first PSS and the first SSS, the running time-frequency resource that the first PSS and the first SSS are occupied is and described The running time-frequency resource that the 2nd PSS of at least one set and the 2nd SSS is occupied, passes through time division multiplexing tdm mode or/and the frequency division multiplexing side FDM Formula realizes multiplexing；

The 2nd PSS at least one set of 2nd PSS and the 2nd SSS occupies running time-frequency resource identical with the first PSS, And the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, occupy the running time-frequency resource different from the first SSS When, the running time-frequency resource that the first SSS is occupied is occupied with the 2nd SSS at least one set of 2nd PSS and the 2nd SSS Running time-frequency resource realizes multiplexing by TDM mode or/and FDM mode.

18. method as claimed in claim 15, which is characterized in that the running time-frequency resource that each group of the 2nd PSS and the 2nd SSS is occupied Point between distribution sequence and time interval between position, and the running time-frequency resource position of the first PSS and the first SSS occupancy Cloth sequence and time interval are identical or different.

19. such as the described in any item methods of claim 11-14,16-18, which is characterized in that further comprise:

In synchronizing process, terminal obtains the exclusive pilot signal CRS of cell or channel state information ginseng from the synchronization signal Signal CSI-RS is examined, and RRM measurement is carried out based on the CRS or CSI-RS, and measurement result is reported into base station.

20. a kind of sending device of synchronization signal characterized by comprising

Generation unit, for the network identity based on network of self home, the physics according to each cell of itself administration is small Area identifies ID, generates corresponding synchronization signal for each cell respectively；

Transmission unit for the synchronization signal distribution running time-frequency resource to generate, and each synchronization signal is provided in corresponding time-frequency It is sent on source.

21. device as claimed in claim 20, which is characterized in that the network identity based on network of self home, according to one The physical district ID of cell, when generating corresponding synchronization signal for one cell, the generation unit is used for:

It is generated one according to the physical district ID of one cell based on the first mapping relations that existing protocol defines The the first primary synchronization signal PSS and the first secondary synchronization signal SSS of cell；

According to the physical district ID of one cell, the second mapping relations based on setting generate one cell extremely Few one group of the 2nd PSS and the 2nd SSS, wherein second mapping relations and first mapping relations are identical or different, indicate Physical area group ID in physical district ID and the mapping relations between composition sequence, and indicate the physics in physical district ID Mapping relations in cell group between the root of ID and composition sequence index；

And the network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, at least to described At least one set the 2nd PSS and the 2nd SSS is scrambled.

22. device as claimed in claim 21, which is characterized in that the network identity based on network of self home generates scrambling code sequence Column, and the scrambler sequence is used, when at least scrambling at least one set of 2nd PSS and the 2nd SSS, the generation is single Member is used for:

Network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, according to setting sequence, divides It is other successively to be scrambled to the first PSS and the first SSS, and to each group of the 2nd PSS and the 2nd SSS；Alternatively,

Network identity based on network of self home generates scrambler sequence, and uses the scrambler sequence, according to setting sequence, divides It is other that each group of the 2nd PSS and the 2nd SSS is successively scrambled.

23. device as claimed in claim 20, which is characterized in that the network identity based on network of self home, according to one The physical district ID of cell, when generating corresponding synchronization signal for one cell, the generation unit is used for:

It is generated one according to the physical district ID of one cell based on the first mapping relations that existing protocol defines First PSS of cell and the first SSS；

The mapping parameters of the network identity setting of corresponding network of self home are obtained, and corresponding based on mapping parameters acquisition At least a kind of third mapping relations, and based at least a kind of third mapping relations, generate one cell at least One group of the 2nd PSS and the 2nd SSS, wherein use mutually similar third mapping relations between the 2nd PSS and the 2nd SSS of difference group Or inhomogeneity third mapping relations, at least a kind of third mapping relations are different from first mapping relations, indicate physics Physical area group ID in cell ID and the mapping relations between composition sequence, and indicate the physical area in physical district ID Mapping relations in group between the root of ID and composition sequence index.

24. the device as described in claim 21,22 or 23, which is characterized in that the synchronization signal to generate distributes running time-frequency resource When, the transmission unit is used for:

It is that the first PSS and the first SSS distributes running time-frequency resource based on existing protocol, alternatively, being the first PSS and the first SS Distribute the running time-frequency resource newly defined；

The running time-frequency resource different from the first PSS and the first SSS is distributed at least one set of 2nd PSS and the 2nd SSS；Or Person, base station are the 2nd PSS at least one set of 2nd PSS and the 2nd SSS, distribute time-frequency identical with the first PSS Resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, when distributing different from the first SSS Frequency resource.

25. device as claimed in claim 24, which is characterized in that the different running time-frequency resource is different orthogonal frequency It is multiplexed OFDM symbol and/or different subcarriers.

26. device as claimed in claim 25, which is characterized in that further comprise:

Multiplexing Unit, it is different from the first PSS and the first SSS for being distributed at least one set of 2nd PSS and the 2nd SSS Running time-frequency resource when, be the running time-frequency resource that the first PSS and the first SSS are distributed, and at least one set of 2nd PSS and the The running time-frequency resource of two SSS distribution, realizes multiplexing by time division multiplexing tdm mode or/and frequency division multiplexing FDM mode；

And for distributing identical as the first PSS for the 2nd PSS at least one set of 2nd PSS and the 2nd SSS Running time-frequency resource, and be the 2nd SSS at least one set of 2nd PSS and the 2nd SSS, distribution with the first SSS not With running time-frequency resource when, base station is the running time-frequency resource of the first SSS distribution, and at least one set of 2nd PSS and second The running time-frequency resource of the 2nd SSS distribution in SSS, realizes multiplexing by TDM mode or/and FDM mode.

27. device as claimed in claim 24, which is characterized in that the running time-frequency resource that each group of the 2nd PSS and the 2nd SSS is occupied Point between distribution sequence and time interval between position, and the running time-frequency resource position of the first PSS and the first SSS occupancy Cloth sequence and time interval are identical or different.

28. such as the described in any item devices of claim 20-23,25-27, which is characterized in that further comprise:

Notification unit, for the characteristic information in advance with terminal side agreement synchronization signal, the characteristic information, which includes at least, to be synchronized The producing method of signal, the method for salary distribution of running time-frequency resource and transmit cycle；Alternatively,

For the characteristic information of synchronization signal, institute to be notified to terminal side by high-level signaling before sending the synchronization signal State producing method, the method for salary distribution of running time-frequency resource and transmit cycle that characteristic information includes at least synchronization signal.

29. device as claimed in claim 28, which is characterized in that the transmission unit is further used for:

30. a kind of reception device of synchronization signal characterized by comprising

Receiving unit, for receiving the synchronization signal of base station transmission；Wherein, the synchronization signal is that the base station is returned based on itself The network identity for belonging to network is generated according to the Physical Cell Identifier ID of the cell of itself administration for respective cell；

31. device as claimed in claim 30, which is characterized in that include first in the received synchronization signal of receiving unit Primary synchronization signal PSS and the first secondary synchronization signal SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

32. device as claimed in claim 31, which is characterized in that at least described at least one set of 2nd PSS and the 2nd SSS is through institute Base station is stated to be scrambled using scrambler sequence, comprising:

33. device as claimed in claim 30, which is characterized in that include first in the received synchronization signal of receiving unit PSS and the first SSS, and at least one set the 2nd PSS and the 2nd SSS；Wherein,

34. the device as described in claim 31,32 or 33, which is characterized in that further comprise:

35. device as claimed in claim 34, which is characterized in that the different running time-frequency resource is different orthogonal frequency It is multiplexed OFDM symbol and/or different subcarriers.

36. device as claimed in claim 35, which is characterized in that at least one set of 2nd PSS and the 2nd SSS is occupied and institute When stating the different running time-frequency resource of the first PSS and the first SSS, the running time-frequency resource that the first PSS and the first SSS are occupied is and described The running time-frequency resource that the 2nd PSS of at least one set and the 2nd SSS is occupied, passes through time division multiplexing tdm mode or/and the frequency division multiplexing side FDM Formula realizes multiplexing；

37. device as claimed in claim 34, which is characterized in that the running time-frequency resource that each group of the 2nd PSS and the 2nd SSS is occupied Point between distribution sequence and time interval between position, and the running time-frequency resource position of the first PSS and the first SSS occupancy Cloth sequence and time interval are identical or different.

38. such as the described in any item devices of claim 30-33,35-37, which is characterized in that further comprise:

Measuring unit, for obtaining the exclusive pilot signal CRS of cell or channel shape from the synchronization signal in synchronizing process State information reference signal CSI-RS, and RRM measurement is carried out based on the CRS or CSI-RS, and measurement result is reported into base It stands.