CN104081839A

CN104081839A - Method and apparatus for sending and receiving synchronous signal

Info

Publication number: CN104081839A
Application number: CN201280020889.9A
Authority: CN
Inventors: 官磊; 万蕾; 马莎; 薛丽霞; 李强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2014-10-01
Also published as: WO2014079068A1

Abstract

Embodiments of the present invention relate to the technical field of communications. Provided are a method and an apparatus for sending and receiving a synchronous signal, to efficiently improve detection performance of a UE on a synchronization channel. The method for receiving the synchronous signal comprises the steps of detecting a first group of synchronous signals so as to obtain the first group of synchronous signals, wherein the first group of synchronous signals comprise at least one synchronous signal; determining detection time of a second synchronous signal according to sending information of the first group of synchronous signals; and detecting the second synchronous signal at the determined detection time so as to obtain the second synchronous signal. The present invention can be applied to an LTE wireless communications system.

Description

Method and apparatus for sending and receiving synchronous signal

The present invention relates to the sending, receiving method and device of communication technical field, more particularly to a kind of synchronizing signal for the sending, receiving method and engineering device technique field of synchronizing signal.Background technology

For Long Term Evolution LTE (Long Term Evolution) system, user equipment (UE) (User Equipment) is when accessing LTE system, it is necessary to recognize cell and then access cell.So-called identification cell refers to, UE carries out Physical Cell Identifier synchronous with cell and obtaining the cell by detecting synchronizing channel, and then the cell measured etc. and to operate.When progress is synchronous with cell, UE-as detect master sync signal first, or main synchronous sequence is bad¹J PSS (Primary Synchronization Sequence), then detect auxiliary synchronous signals, or auxiliary synchronous sequence is bad¹J SSS (Secondary Synchronization Sequence), to accomplish time-frequency initial synchronisation, i.e. sign synchronization, synchronizing sub-frame and frame synchronization.In the prior art, the PSS and SSS transmission cycle is usually 5 subframes, and base station transmission PSS and SSS time-domain position is fixed, for FDD (Frequency Division Duplexing) system, PSS is located at the last symbol of first time slot of the 1st and the 6th subframe of a radio frames, and SSS is located at the second-to-last symbol of first time slot of the 1st and the 6th subframe of a radio frames；For TDD (Time Division Duplexing) system, PSS is located at the 3rd symbol of first time slot of the 2nd and the 7th subframe of a radio frames, and SSS is located at the last symbol of second time slot of the 1st and the 6th subframe of a radio frames.It is continuously increased with advances in technology with user's request, the application scenarios of LTE system are intended to the substantial amounts of base station of dense deployment in dense deployment, i.e. scene, these base stations include macro base station and micro-base station.Intensive due to disposing, interference between base station can be very serious, especially between micro-base station, therefore, and interference will cause UE to reduce the detection performance of synchronizing channel, and UE possibly can not normally detect the synchronizing channel of each cell and None- identified cell.

The content of the invention The main purpose of embodiments of the invention is there is provided a kind of sending, receiving method of synchronizing signal and device, can effectively improve detection performances of the UE to synchronizing channel.

To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：First aspect there is provided a kind of sending method of synchronizing signal, including：

The transmission information of first group of synchronizing signal is determined, first group of synchronizing signal includes at least one synchronizing signal；

The delivery time of the second synchronizing signal is determined according to the transmission information；

Second synchronizing signal is sent according to the delivery time of second synchronizing signal.

Second aspect there is provided a kind of method of reseptance of synchronizing signal, including：

First group of synchronizing signal is detected to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；

According to the transmission information of first group of synchronizing signal, the detection moment of second synchronizing signal is determined；In the detection moment of the determination, detect second synchronizing signal to obtain the second synchronizing signal.

The third aspect there is provided a kind of base station, including：Information determination unit, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, the transmission information for being determined according to described information determining unit determines the delivery time of the second synchronizing signal；Transmitting element, the delivery time of the second synchronizing signal for being determined according to the moment determining unit sends second synchronizing signal.

Fourth aspect there is provided a kind of UE, including：Detection unit, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, First group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

The detection unit is additionally operable to the detection moment determined in the moment determining unit, detects second synchronizing signal to obtain the second synchronizing signal.

There is provided a kind of base station in terms of 5th, including：

Processor, communication interface, memory and bus；

Wherein, processor, communication interface, memory complete mutual communication by bus；The communication interface, is used for and external device communication；

The memory, for depositing program；

The processor, for performing described program；Wherein, described program includes：Information determination unit, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, the transmission information for being determined according to described information determining unit determines the delivery time of the second synchronizing signal；Transmitting element, the delivery time of the second synchronizing signal for being determined according to the moment determining unit sends second synchronizing signal.

There is provided a kind of UE in terms of 6th, including：

Processor, communication interface, memory and bus；

The memory, for depositing program；

The processor, for performing described program； Wherein, described program includes:Detection unit, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

The sending method of synchronizing signal provided in an embodiment of the present invention, method of reseptance, base station and

UE, pass through the transmission information of first group of synchronizing signal, determine the delivery time of the second synchronizing signal, base station sends the second synchronizing signal in these delivery times, and UE can determine the detection moment of the second synchronizing signal by the transmission information of the first synchronizing signal, and detect the second synchronizing signal in the detection moment of the second synchronizing signal, therefore, base station can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, and UE is capable of determining that the detection moment of the second synchronizing signal, and detect the second synchronizing signal in these detection moments, therefore, it is possible to effectively improve the possibility that UE detects the second synchronizing signal, and then effectively improve UE detection performance.

The technical scheme of brief description of the drawings in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.Fig. 1 is a kind of flow chart of the sending method of synchronizing signal provided in an embodiment of the present invention；

Fig. 2 is a kind of flow chart of the method for reseptance of synchronizing signal provided in an embodiment of the present invention；

Fig. 3 is a kind of flow of the sending method of synchronizing signal provided in an embodiment of the present invention Figure；

Fig. 4 be Fig. 3 described sender methods in SS S candidate's delivery time illustrative diagram；

Fig. 5 is a kind of flow chart of the method for reseptance of synchronizing signal provided in an embodiment of the present invention；

Fig. 6 is a kind of flow chart of the sending method of synchronizing signal provided in an embodiment of the present invention；

Fig. 7 is a kind of flow chart of the method for reseptance of synchronizing signal provided in an embodiment of the present invention；

Fig. 8 is a kind of structured flowchart of base station provided in an embodiment of the present invention；

Fig. 9 is a kind of structured flowchart of base station provided in an embodiment of the present invention；

Figure 10 is a kind of structured flowchart of base station provided in an embodiment of the present invention；

Fig. 11 is a kind of UE provided in an embodiment of the present invention structured flowchart；

Figure 12 is a kind of UE provided in an embodiment of the present invention structured flowchart；Figure 13 is a kind of UE provided in an embodiment of the present invention structured flowchart；

Figure 14 is a kind of UE provided in an embodiment of the present invention structured flowchart；Figure 15 is a kind of UE provided in an embodiment of the present invention structured flowchart；Figure 16 is a kind of UE provided in an embodiment of the present invention structured flowchart.

The technical scheme in the embodiment of the present invention is clearly and completely described below in conjunction with the accompanying drawing in the embodiment of the present invention for embodiment, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

It should be understood that technical scheme can apply to various communication systems, such as：Global system for mobile telecommunications (GSM, Global System of Mobile communication) system System, CDMA（CDMA, Code Division Multiple Access) system, WCDMA (WCDMA, Wideband Code Division Multiple Access) system, GPRS（GPRS, General Packet Radio Service), Long Term Evolution（LTE, Long Term Evolution) system, advanced Long Term Evolution (LTE- A, Long term evolution-Advanced) system, UMTS (UMTS, Universal Mobile Telecommunication System) etc., the embodiment of the present invention is not limited, but for convenience of description, the embodiment of the present invention will be illustrated by taking LTE networks as an example.The embodiment of the present invention can be used for the wireless network of different standards.Radio Access Network may include different network elements in different systems.For example, LTE (Long Term Evolution, Long Term Evolution) and LTE-A (Long term evolution- Advanced, advanced Long Term Evolution）The network element of middle Radio Access Network includes eNB (eNodeB, evolved base station）, WCDMA (Wideband Code Division Multiple Access, WCDMA）The network element of middle Radio Access Network includes RNC (Radio Network Controller, radio network controller）And NodeB, similarly, WiMax (Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave accesses) etc. other wireless networks can also use the scheme similar with the embodiment of the present invention, simply the correlation module in base station system may be different, the embodiment of the present invention is not limited, but for convenience of description, following embodiments will be illustrated by taking network side equipment as an example.

It should also be understood that in embodiments of the present invention, user equipment（UE, User Equipment) include but is not limited to mobile station（MS, Mobile Station), mobile terminal（Mobile Terminal), mobile phone (Mobile Telephone), mobile phone (handset) and portable equipment（Portable equipment) etc., the user equipment can be communicated through wireless access network (RAN, Radio Access Network) with one or more core nets, for example, user equipment can be mobile phone（Or be " honeycomb " phone）, computer with radio communication function etc., user equipment can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device.

In embodiments of the present invention, base station, can be the base station in GSM systems, GPRS systems or cdma system（Base Transceiver Station, BTS), it can also be the base station in CDMA2000 systems or WCDMA system（), NodeB it can also be the evolved base station in LTE systems（Evolved NodeB, eNodeB), it can also be WiMAX The base station of access service network in network（Access Service Network Base Station, ASN BS) etc. network element.

In addition, the terms " and/or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.In addition, character "/" herein, typically represent forward-backward correlation object be it is a kind of " or " relation.The embodiments of the invention provide a kind of sending method of synchronizing signal, performed, as shown in Fig. 1, comprised the following steps by base station：

100, base station determines the transmission information of first group of synchronizing signal.In the embodiment of the present invention, first group of synchronizing signal includes at least one synchronizing signal.In this step, the transmission information of first group of synchronizing signal is the transmission parameter that is used during base station sends first group of synchronizing signal or by the information indicated by the transmission of first group of synchronizing signal.It should be noted that, the transmission information of first group of synchronizing signal can be the corresponding transmission parameter of one or several synchronizing signals in first group of synchronizing signal, can also be or the information indicated collectively by least two synchronizing signals in first group of synchronizing signal by the information indicated by some synchronizing signal in first group of synchronizing signal.For example, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, and the transmission information of first group of synchronizing signal includes the transmission sequence of the first synchronizing signal, sends at least one of cycle, delivery time.In another embodiment of the present invention, first group of synchronizing signal includes at least two synchronizing signals, in this case, the transmission information of first group of synchronizing signal can be in transmission sequence, transmission cycle, delivery time or the above-mentioned three of one or several synchronizing signals at least two synchronizing signals in first group of synchronizing signal at least the two, the transmissions information of first group of synchronizing signal can also be the subframe and/or wireless frame timing information of at least one synchronizing signal instruction in first group of synchronizing signal.Wherein, subframe timing information refers to the starting and ending point of subframe, and wireless frame timing information refers to the starting and ending point of radio frames.For example, assuming that first group of synchronizing signal includes S SS, SS S subframes 0 in a radio frame and subframe 5 are respectively sent once, and the interleaving mode of this sequence sent twice is different, therefore it is subframe 0 which UE can distinguish from this interleaving mode that S SS are sent twice, which is subframe 5, and first symbol of subframe 0 can just regard the frame head of radio frames as, that is, rise Initial point.

102, base station determines the delivery time of the second synchronizing signal according to the transmission information of its determination.

It should be noted that in the embodiment of the present invention, the second synchronizing signal is for carrying out cell identification, if UE can normally detect the second synchronizing signal, it becomes possible to recognize cell and access cell for UE.In the embodiment of the present invention, base station is by the delivery time for transmitting information to determine second group of synchronizing signal of first group of synchronizing signal, and base station is capable of determining that the delivery time of the second synchronizing signal after the transmission information of known first group of synchronizing signal.

Particularly, in this step, base station it is determined that the second synchronizing signal delivery time when, in order to effectively reduce interference produced when sending the second synchronizing signal between each cell, base station can select the delivery time of its second synchronizing signal different from the delivery time for the second synchronizing signal that at least one cell in other cells is sent, base station can so be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, further improve receptivities of the UE to the second synchronizing signal.

In existing LTE standard, the transmission cycle of each synchronizing signal is typically identical, and in embodiments of the present invention, particularly, base station it is determined that the second synchronizing signal delivery time when, the transmission cycle phase of the second synchronizing signal can be made to send cycle change specified in current standard greatly for it, the transmission cycle of the second synchronizing signal is elongated, that is, in this step, base station it is determined that the second synchronizing signal delivery time when, it may be such that the transmission cycle of the second synchronizing signal is more than at least one synchronizing signal in first group of synchronizing signal and sends the cycle, for example, in one embodiment of the invention, at the time of the delivery time of second synchronizing signal determined by base station and other cells is in the delivery time of the second synchronizing signal as defined in current standard, but the transmission cycle of the second synchronizing signal is elongated, the delivery time of the second synchronizing signal is the part moment in the delivery time of the second synchronizing signal as defined in current standard i.e. determined by base station, so as to reduce base station with other cells while sending the possibility of the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, further improve receptivities of the UE to the second synchronizing signal.Optionally, this step can have following three kinds of implementations： One：

Base station determines candidate's delivery time of the second synchronizing signal according to the transmission information of first group of synchronizing signal first；Then, it is determined that candidate's delivery time in, selected section or whole candidate's delivery time as the second synchronizing signal delivery time.

Base station it is determined that during candidate's delivery time, can with specific reference to first group of synchronizing signal transmission information, and the transmission information and the corresponding relation of candidate's delivery time of the second synchronizing signal determine candidate's delivery time of the second synchronizing signal.As its name suggests, candidate's delivery time of second synchronizing signal refers to all moment that can send the second synchronizing signal, each candidate's delivery time can be one or continuous several orthogonal frequency division multiplex OFDM (Orthogonal Frequency Division Multiplexing) symbols, it can also be one or more consecutive subframe, or, discrete several symbols are can also be, these discrete symbols are located in different subframe or time slot respectively.Base station can select all or part of moment in these candidate's delivery times as the delivery time of the second synchronizing signal.As before, in a communication network, when candidate's delivery time of second synchronizing signal of multiple cells is identical, base station can select the part moment in candidate's delivery time to send the second synchronizing signal, so, the transmission cycle of second synchronizing signal can be longer, and progress interference is evaded between being easy to candidate's delivery time identical different districts.

In this implementation, no matter for base station, or for UE, the corresponding relation of the transmission information of first group of synchronizing signal and candidate's delivery time of the second synchronizing signal is pre-set, in the case of the transmission information of known first group of synchronizing signal, base station and UE can be according to pre-set corresponding relations, candidate's delivery time of the second synchronizing signal is determined, UE will detect the second synchronizing signal to obtain the second synchronizing signal in these candidate's delivery times.So, because UE is capable of candidate's delivery time of known second synchronizing signal, moreover, the second synchronizing signal is sent in some of these candidate's delivery times moment, UE only need to it is determined that candidate's delivery time carry out the second synchronizing signal detection, reduce the complexity of detection.Based on this implementation, for different districts in communication network, each cell can select different delivery times to send the second synchronizing signal respectively, so that interference produced when sending the second synchronizing signal between effectively reducing each cell, further improves receptivities of the UE to the second synchronizing signal. In one embodiment of the invention, candidate's delivery time of the second synchronizing signal of each cell is identical in communication network, in this case, each cell can carry out interference coordination, in this step, base station can select the candidate delivery times different from least one cell in the cell of other in communication network as the delivery time of the second synchronizing signal, so as to interference produced when sending the second synchronizing signal effectively between reduction base station and other cells, receptivities of the UE to the second synchronizing signal is further improved.The embodiment of the present invention is not limited the transmission information and the corresponding relation of candidate's delivery time of the second synchronizing signal of first group of synchronizing signal, as long as base station and UE can determine candidate's delivery time of the second synchronizing signal according to the corresponding relation.Specifically, each, which sends information, can correspond to a kind of set of candidate's delivery time, and they can directly be corresponded to, i.e., each sends information and directly correspond to a kind of set of candidate's delivery time, after known transmission information, it need not further calculate, can directly determine candidate's delivery time, certainly, they can also be functional relation, after i.e. known transmission information, by calculating, candidate's delivery time is resulted in.For example, assuming that first group of synchronizing signal includes the first synchronizing signal, the transmission information of first group of synchronizing signal is the delivery time of the first synchronizing signal, the corresponding relation of the delivery time of first synchronizing signal and candidate's delivery time of the second synchronizing signal is that candidate's delivery time of the second synchronizing signal is the nth symbol after the delivery time of the first synchronizing signal, n is integer, then after the delivery time of known first synchronizing signal, by calculating, base station just can determine that candidate's delivery time of the second synchronizing signal.

Again for example, the transmission information of first group of synchronizing signal is the transmission sequence of the first synchronizing signal, and the transmission sequence of the first synchronizing signal and the corresponding relation of candidate's delivery time of the second synchronizing signal are set with list mode in advance, each transmission sequence of first synchronizing signal corresponds to the different sets of candidate's delivery time of the second synchronizing signal respectively, the transmission sequence of i.e. known first synchronizing signal, base station is by way of tabling look-up, the set of candidate's delivery time of the second synchronizing signal corresponding with the transmission sequence of the first synchronizing signal can be found, determine candidate's delivery time of the second synchronizing signal.It is similar with above-mentioned example, a variety of corresponding relations can be set in the embodiment of the present invention, and I will not elaborate.

For example, in one embodiment of the invention, first group of synchronizing signal includes the One synchronizing signal, the transmission information of first group of synchronizing signal is the delivery time of the first synchronizing signal, and the delivery time of the first synchronizing signal and candidate's delivery time of the second synchronizing signal have --- corresponding relation, the corresponding relation is：The delivery time of first synchronizing signal is candidate's delivery time of the second synchronizing signal.Assuming that the transmission cycle of the first synchronizing signal is 10ms, the transmission cycle of second synchronizing signal is 100ms, if UE wants to detect the second synchronizing signal, UE can go to detect the second synchronizing signal with each millisecond in each transmission cycle 100ms of the second synchronizing signal, untill detecting the second synchronizing signal.And in embodiments of the present invention, the delivery time sent with 10 the first synchronizing signals in cycle 100ms of each second synchronizing signal, there is candidate's delivery time of 10 the second synchronizing signals, base station will send the second synchronizing signal in all or part of moment in this 10 moment, and UE need to only be detected at this 10 moment to the second synchronizing signal, each moment that need not be in 100ms goes to detect the second synchronizing signal, reduces detection complexity.In addition, if candidate's delivery time of the second synchronizing signal of different districts is this 10 moment in network, second synchronizing signal of so different cells can be sent with different candidate's delivery times respectively, such as cell 1 sends the second synchronizing signal with first candidate's delivery time, cell 2 sends the second synchronizing signal with the 5th candidate's delivery time, so for the UE in different districts, the second synchronizing signal of respective cell can be detected, and be to stagger the time-division between the second synchronizing signal of minizone, it is achieved that interference is evaded, improve detection performance.Secondly：

Base station the delivery time of the second synchronizing signal is determined according to the transmission information and the transmission information and the corresponding relation of the delivery time of the second synchronizing signal of first group of synchronizing signal.

Wherein, the transmission information of first group of synchronizing signal is similar with the corresponding relation of candidate's delivery time of the second synchronizing signal with the transmission information of first group of synchronizing signal described in the first above-mentioned implementation with the corresponding relation of the delivery time of the second synchronizing signal, and here is omitted.

Can be by presetting this corresponding relation, so that base station sends different from least one cell in the cell of other in communication network at the time of the second synchronizing signal, so as to interference produced when sending the second synchronizing signal effectively between reduction base station and other cells, receptivities of the UE to the second synchronizing signal is improved. In this implementation, no matter for base station, or for UE, the corresponding relation of the transmission information of first group of synchronizing signal and the delivery time of the second synchronizing signal is pre-set, in the case of the transmission information of known first group of synchronizing signal, base station and UE can be according to pre-set corresponding relations, determine the delivery time of the second synchronizing signal, UE will detect the second synchronizing signal to obtain the second synchronizing signal in these delivery times, due to base station can select from least one cell is different in the cell of other in communication network at the time of send the second synchronizing signal, effectively reduce interference produced when sending the second synchronizing signal between base station and other cells, therefore, it is possible to effectively improve the possibility that UE detects the second synchronizing signal, and then effectively improve UE detection performance.Thirdly：

Candidate's delivery time of the second synchronizing signal is determined in base station first, then, according to the transmission information of first group of synchronizing signal, selected section or whole candidate's delivery times as the second synchronizing signal delivery time.

In such a mode, candidate's delivery time is identical with the meaning of candidate's delivery time of foregoing first way, refers both to send all moment of the second synchronizing signal, no longer Redundant is stated here.

It is different from foregoing first way, candidate's delivery time of the second synchronizing signal is determined in base station first in such a mode, recycle the transmission information of first group of synchronizing signal and the corresponding relation of the second synchronizing signal, in these candidate's delivery times, the delivery time of the second synchronizing signal is selected.These candidate's delivery times can be that pre-set or base station is voluntarily determined and notify to UE, be determined after being determined according to current channel condition, or carry out interference coordination with other cells in network.Therefore, candidate's delivery time of second synchronizing signal determined by base station can be identical or entirely different with candidate's delivery time part of the cell of other in communication network, and then when selecting the delivery time of the second synchronizing signal, the selected delivery time in base station can be caused only a small amount of identical or entirely different with the selected delivery time of other cells, effectively reduce interference produced when sending the second synchronizing signal between base station and other cells, therefore, it is possible to effectively improve the possibility that UE detects the second synchronizing signal, and then effectively improve UE detection performance.

Even if moreover, candidate's delivery time of the second synchronizing signal determined by base station is with communicating Candidate's delivery time of the cell of other in network is identical, in transmission information of the base station according to first group of synchronizing signal, when selecting the delivery time of the second synchronizing signal, it is different from least one cell in the cell of other in communication network at the time of can causing base station selected the second synchronizing signal of transmission, so as to interference produced when sending the second synchronizing signal effectively between reduction base station and other cells, receptivities of the UE to the second synchronizing signal is improved.

In this implementation, for UE, UE can be according to presetting or the notice of base station determines candidate's delivery time of the second synchronizing signal, UE simultaneously can be according to the transmission information of first group of synchronizing signal, the delivery time of the second synchronizing signal is determined in these candidate's delivery times, and detect the second synchronizing signal in these delivery times, due to base station can be selected in candidate's delivery time from least one cell is different in the cell of other in communication network at the time of send the second synchronizing signal, effectively reduce interference produced when sending the second synchronizing signal between base station and other cells, necessarily improve the possibility that UE detects the second synchronizing signal, and then when carrying out cell identification, effectively increase UE detection performance.

103, base station sends the second synchronizing signal according to the delivery time of the second synchronizing signal.The sending method of synchronizing signal provided in an embodiment of the present invention, base station can be by the transmission information of first group of synchronizing signal, determine the delivery time of the second synchronizing signal, base station sends the second synchronizing signal in these delivery times, and UE can determine the delivery time or candidate's delivery time of the second synchronizing signal by the transmission information of the first synchronizing signal, and detect the second synchronizing signal at these moment, therefore, base station can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, and UE detects the second synchronizing signal in the delivery time or candidate's delivery time of its determination, therefore, the possibility that UE detects the second synchronizing signal can be effectively improved, and then effectively improve UE detection performance.It should be noted that in the embodiment of the present invention, when first group of synchronizing signal only includes a synchronizing signal, the synchronizing signal can pass through identical or different serving cell from the second synchronizing signal（Also referred to as carrier wave）Send.When first group of synchronizing signal includes multiple synchronizing signals, the plurality of synchronizing signal can be sent by identical or different serving cell.When first group of synchronizing signal is sent including multiple synchronizing signals, and the plurality of synchronizing signal by identical serving cell, the second synchronizing signal can pass through identical with first group of synchronizing signal Serving cell send and can also pass through different serving cell and send.In one embodiment of the invention, in addition to：

First group of synchronizing signal only includes the first synchronizing signal, such as master sync signal；Second synchronizing signal is, for example, auxiliary synchronous signals.In the present embodiment, for convenience of description, the combination of above-mentioned first synchronizing signal and the second synchronizing signal is referred to as second group of synchronizing signal.

Second group of synchronizing signal is different in the first field of radio frames and the position of the second field.For example, first field is the subframe 0 to 4 of a radio frames, second field is the subframe 5 to 9 of a radio frames.So, UE can according to second group of synchronizing signal two fields diverse location, to determine carrier type and/or frame timing information.The carrier type includes backward compatibility carrier wave and new carrier wave, because PS S and S S S are identicals in the position of two fields on backward compatibility carrier wave, and is different in new carrier wave.The new carrier wave is usually non-backward compatible, i.e. the UE of lowest version cannot be accessed by the new carrier wave, cannot be also resident in the new carrier wave；The feature of the new carrier wave can also include at least one of following：EPDCCH public search space receiving common control information is leaned in new carrier wave, such as scheduling system message, beep-page message, the ePDCCH of Stochastic accessing response message, the ePDCCH is with channel information precoding transmissions, and resource allocation is in units of Physical Resource Block or Physical Resource Block pair；Cell specific reference signal in new carrier wave is not that each subframe is sent, such as 5 subframes are sent once；The transport module based on UE specific reference signals is only supported in new carrier wave；Etc..Specifically：

For example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is identical in the first field and the second field, the symbol of such as master sync signal and auxiliary synchronous signals is adjacent and on the master sync signal time rear, other are also not excluded for.But, second group of synchronizing signal is different in the absolute time-domain position of two fields, such as character position is different and/or subframe position is different.Meeting an example of above-mentioned condition is：PS S and S S S are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and P S S and S S S are located at the 3rd symbol and the 4th symbol of the subframe 5 of the second field respectively, and other similar positions are also not excluded for.So, UE is detected after the PS S and S S S of two fields, the different time interval of second group of synchronizing signal by comparing the two fields, it is possible to determine frame timing, if such as UE detections find second group of synchronizing signal of previous field away from Time interval from second group of synchronizing signal of latter field is a symbol more than 5 subframes, then UE determines that above-mentioned previous field is the first field of a radio frames, and above-mentioned latter field is the second field of a radio frames；It is on the contrary, if second group of synchronizing signal of the previous field of UE detection discoveries is 5 subframes but a few symbol apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the second field of a radio frames, and above-mentioned latter field is the first field of a radio frames.Further, UE can also determine carrier type by above-mentioned similar method by the position relationship of second group of synchronizing signal of two fields.

In another example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is different in the first field and the second field, such as PS S and S S S are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and PS S and S S S are located at the 2nd symbol and the 4th symbol of the subframe 5 of the second field respectively.Other are also not excluded for compared to character position, or can also be that subframe position is different, such as second group synchronizing signal takes different subframes in two fields.Specific same above-described embodiment of method for determining frame timing and/or carrier type, no longer Redundant is stated herein.

Based on above-mentioned second group of synchronizing signal two fields diverse location, UE can obtain frame synchronizing signal, and/or, carrier type information, and can ensure that UE detects one group of P S S and S S S method and current mechanism, mechanism after i.e. on string compatible carrier wave is the same, because P S S and S S S relative position can keep constant, can so greatly reduce the complexity of cell searching.

Corresponding with foregoing sending method embodiment, the embodiment of the present invention provides a kind of method of reseptance of synchronizing signal again, as shown in Fig. 2 including：

200, U E detect first group of synchronizing signal to obtain first group of synchronizing signal.In the embodiment of the present invention, first group of synchronizing signal includes at least one synchronizing signal.

201, UE, according to the transmission information of first group of synchronizing signal, determine the detection moment of the second synchronizing signal.

Wherein, the transmission information of first group of synchronizing signal is that base station sends during first group of synchronizing signal the transmission parameter that is used or by the information indicated by the transmission of first group of synchronizing signal, foregoing sending method embodiment is for details, reference can be made to, no longer Redundant is stated here. In the embodiment of the present invention, the second synchronizing signal is for carrying out cell identification, if UE can normally detect the second synchronizing signal, it becomes possible to recognize cell and access cell for UE.It should be noted that, in all embodiments of the present invention, " delivery time " respective base station side is described, " detection moment " corresponding UE side is described, for UE, all or part of moment of second synchronizing signal in detection moment sends, i.e., " detection moment of the second synchronizing signal;, it is middle necessarily to include " delivery time of the second synchronizing signal ".

Specifically, it is corresponding with 3 kinds of implementations of step 102 in foregoing sending method embodiment, there can be following two kinds of implementations in this step：One：

First two implementation with step 102 in foregoing sending method embodiment is corresponding, in this step, UE can determine the detection moment of the second synchronizing signal according to the corresponding relation of the transmission information of first group of synchronizing signal, and the transmission information and the detection moment of the second synchronizing signal.In this mode, for UE, the transmission information of first group of synchronizing signal and the corresponding relation of the detection moment of the second synchronizing signal are set in advance, the corresponding relation of the transmission information of first group of synchronizing signal known to UE and the detection moment of the second synchronizing signal.

If base station uses the first implementation described in step 102 in foregoing sending method embodiment, in this implementation, the corresponding relation of the transmission information for first group of synchronizing signal that UE is used and the detection moment of the second synchronizing signal, the transmission information for the first group of synchronizing signal that can be used with base station is identical with the corresponding relation of candidate's delivery time of the second synchronizing signal.That is, candidate's delivery time determined by detection moment determined by UE, as base station, both meanings are equal.Second synchronizing signal is sent in the part or all of moment in candidate's delivery time due to base station, UE only need to it is determined that detection moment carry out the second synchronizing signal detection, on the one hand the complexity of detection is reduced, another aspect base station can select the delivery time of the second synchronizing signal in candidate's delivery time, the interference produced when sending the second synchronizing signal effectively between reduction base station and other cells, improve the possibility that UE detects the second synchronizing signal, and then when carrying out cell identification, effectively increase UE detection performance.

If base station uses second described in step 102 in foregoing sending method embodiment Plant implementation, the corresponding relation of the transmission information for first group of synchronizing signal that UE is used and the detection moment of the second synchronizing signal, the transmission information for the first group of synchronizing signal that can be used with base station is identical with the corresponding relation of the delivery time of the second synchronizing signal.That is, delivery time determined by detection moment determined by UE, as base station.Both meanings are equal.Due to passing through this corresponding relation set in advance, it can cause base station is sent different from least one cell in the cell of other in communication network at the time of the second synchronizing signal, so as to interference produced when sending the second synchronizing signal effectively between reduction base station and other cells, receptivities of the UE to the second synchronizing signal is improved.Secondly：

The third implementation with step 102 in foregoing sending method embodiment is corresponding, in this step, UE can determine the couple candidate detection moment of the second synchronizing signal first, then according to the transmission information of first group of synchronizing signal, selected section or whole couple candidate detection moment as the second synchronizing signal detection moment.Specifically, UE can basis, selection sends information corresponding part couple candidate detection moment as the detection moment of second synchronizing signal with described.Wherein, the couple candidate detection moment determined by user is candidate's delivery time determined by base station, and the corresponding relation at the couple candidate detection moment of the transmission information for first group of synchronizing signal that UE is used and the second synchronizing signal, the transmission information for the first group of synchronizing signal that can be used with base station is identical with the corresponding relation of the delivery time of the second synchronizing signal.

This implementation, on the one hand, candidate's delivery time of second synchronizing signal determined by base station can be identical or entirely different with candidate's delivery time part of the cell of other in communication network, and then when selecting the delivery time of the second synchronizing signal, the selected delivery time in base station can be caused only a small amount of identical or entirely different with the selected delivery time of other cells, effectively reduce interference produced when sending the second synchronizing signal between base station and other cells, therefore, it is possible to effectively improve the possibility that UE detects the second synchronizing signal, and then effectively improve UE detection performance.On the other hand, even if candidate's delivery time of the second synchronizing signal determined by base station is identical with candidate's delivery time of the cell of other in communication network, in transmission information of the base station according to first group of synchronizing signal, when selecting the delivery time of the second synchronizing signal, it is different from least one cell in the cell of other in communication network at the time of can causing base station selected the second synchronizing signal of transmission, thus effectively reduction base station with The interference produced when sending the second synchronizing signal between other cells, improves receptivities of the UE to the second synchronizing signal.

Corresponding relation in above two mode is pre-set, can be direct corresponding relation or functional relation, specifically refer to base station side embodiment above, repeat no more here.

202, UE its determination detection moment, the second synchronizing signal of detection is to obtain the second synchronizing signal.

It should be noted that in the embodiment of the present invention, particularly, the transmission cycle for the second synchronizing signal that UE is got can be more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.The method of reseptance of synchronizing signal provided in an embodiment of the present invention, UE can determine the detection moment of the second synchronizing signal by the transmission information of the first synchronizing signal, and detect the second synchronizing signal in the detection moment of the second synchronizing signal, therefore, base station can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, and UE is capable of determining that the detection moment of the second synchronizing signal, and detect the second synchronizing signal in these detection moments, therefore, it is possible to effectively improve the possibility that UE detects the second synchronizing signal, and then effectively improve UE detection performance.

It should be noted that in the embodiment of the present invention, in step 201, UE needs the transmission information according to first group of synchronizing signal, determines the detection moment of the second synchronizing signal.The transmission information of first group of synchronizing signal is that base station sends during first group of synchronizing signal the transmission parameter that is used or by the information indicated by the transmission of first group of synchronizing signal.The transmission the information how embodiment of the present invention obtains first group of synchronizing signal to UE is not construed as limiting, and can have various ways.For example, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, and the transmission information of first group of synchronizing signal is at least one of the transmission sequence of the first synchronizing signal, transmission cycle, delivery time.For the transmission sequence of the first synchronizing signal, the first synchronizing signal that UE can be obtained according to it in step 200 obtains the transmission sequence of the first synchronizing signal, i.e., detect that first is same by detecting the first synchronizing signal Walk the transmission sequence of signal, equally, for the delivery time of the first synchronizing signal, the first synchronizing signal that UE can also be obtained according to it in step 200, the delivery time of the first synchronizing signal is obtained, i.e., the delivery time of the first synchronizing signal is got by the first synchronizing signal of detection, for example, UE some subframe in some radio frames detects the subframe that the first synchronizing signal, the i.e. delivery time of the first synchronizing signal are the radio frames.For the transmission cycle of the first synchronizing signal, optionally, it can pre-set, UE can be according to pre-setting, obtain the transmission cycle of the first synchronizing signal, it can also be the first synchronizing signal that UE is obtained in step 200 according to it, obtain the transmission cycle of the first synchronizing signal, i.e. UE obtains transmission cycle of the first synchronizing signal by detecting the first synchronizing signal of different delivery times.For example, UE can determine the cycle by the synchronizing signal of repeated detection first, assuming that the transmission cycle of the first synchronizing signal is 5ms, then UE can be by detecting the first synchronizing signal of different delivery times, a correlation peak occurs per 5ms, therefore, UE can determine that the transmission cycle of the first synchronizing signal is 5ms.

In one embodiment of the invention, first group of synchronizing signal includes at least two synchronizing signals, in this case, the transmission information of first group of synchronizing signal can be the subframe and/or wireless frame timing information of at least one synchronizing signal instruction in first group of synchronizing signal, wherein, subframe timing information refers to the starting and ending point of subframe, and wireless frame timing information refers to the starting and ending point of radio frames.For example, assuming that first group of synchronizing signal includes S SS, SS S subframes 0 in a radio frame and subframe 5 are respectively sent once, and the interleaving mode of this sequence sent twice is different, therefore it is subframe 0 which UE can distinguish from this interleaving mode that S SS are sent twice, which is subframe 5, and first symbol of subframe 0 can just regard the frame head of radio frames, i.e. starting point as.

In one embodiment of the invention, after step 202, the method for reseptance of synchronizing signal may also include：

UE carries out cell or cell group identification according to the second synchronizing signal of acquisition.Further, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, UE determines the detection moment of the second synchronizing signal in step 201, and then just can determine that the cycle of the detection moment of the second synchronizing signal, it is in the case of the cycle for the detection moment for being more than the second synchronizing signal in the transmission cycle of the first synchronizing signal, i.e., adjacent Two the first synchronizing signals delivery time between include the detection moment of at least two second synchronizing signals, at least two detection moment include the first detection moment and the second detection moment；In this case, in step 202, UE is when detecting the second synchronizing signal, and because detection moment has temporal differentiation, therefore, UE may not necessarily detect all sequences of the second synchronizing signal in each detection.Specifically, UE can be in the first detection moment, detect the First ray set of the second synchronizing signal, and in the second detection moment, detect the second arrangement set of the second synchronizing signal, wherein, the number of sequence is less than total number or the total number of cell group identification that the second synchronizing signal needs the cell ID of instruction in the number and/or the second arrangement set of sequence in First ray set, so as to effective detection complexity for simplifying UE.And it is optional, the sequence in sequence and the second arrangement set in First ray set can be with identical, can also be different, if the sequence in First ray set is identical with the sequence in the second arrangement set, detections of the UE to the second synchronizing signal can be facilitated, simplifies UE inspection complexity.In one embodiment of the invention, in addition to：

Second group of synchronizing signal is different in the first field of radio frames and the position of the second field.For example, first field is the subframe 0 to 4 of a radio frames, second field is the subframe 5 to 9 of a radio frames.So, UE can according to second group of synchronizing signal two fields diverse location, to determine carrier type and/or frame timing information.The carrier type includes backward compatibility carrier wave and new carrier wave, because PS S and S SS are identicals in the position of two fields on backward compatibility carrier wave, and is different in new carrier wave.The new carrier wave is usually non-backward compatible, i.e. the UE of lowest version cannot be accessed by the new carrier wave, cannot be also resident in the new carrier wave；The feature of the new carrier wave can also include at least one of following：EPDCCH public search space receiving common control information is leaned in new carrier wave, such as scheduling system message, beep-page message, the ePDCCH of Stochastic accessing response message, the ePDCCH is with channel information precoding transmissions, and resource allocation is in units of Physical Resource Block or Physical Resource Block pair；Cell specific reference signal in new carrier wave is not that each subframe is sent, such as 5 subframes are sent once；The transport module based on UE specific reference signals is only supported in new carrier wave；Etc.. Specifically:

For example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is identical in the first field and the second field, the symbol of such as master sync signal and auxiliary synchronous signals is adjacent and on the master sync signal time rear, other are also not excluded for.But, second group of synchronizing signal is different in the absolute time-domain position of two fields, such as character position is different and/or subframe position is different.Meeting an example of above-mentioned condition is：PSS and SSS are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and PSS and SSS are located at the 3rd symbol and the 4th symbol of the subframe 5 of the second field respectively, and other similar positions are also not excluded for.So, UE is detected after the PSS and SSS of two fields, by the different time interval for second group of synchronizing signal for comparing the two fields, it is assured that frame timing, if second group of synchronizing signal of the previous field of such as UE detection discoveries is a symbol more than 5 subframes apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the first field of a radio frames, and above-mentioned latter field is the second field of a radio frames；It is on the contrary, if second group of synchronizing signal of the previous field of UE detection discoveries is 5 subframes but a few symbol apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the second field of a radio frames, and above-mentioned latter field is the first field of a radio frames.Further, UE can also determine carrier type by above-mentioned similar method by the position relationship of second group of synchronizing signal of two fields.

In another example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is different in the first field and the second field, such as PSS and SSS are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and PSS and SSS are located at the 2nd symbol and the 4th symbol of the subframe 5 of the second field respectively.Other are also not excluded for compared to character position, or can also be that subframe position is different, such as second group synchronizing signal takes different subframes in two fields.Specific same above-described embodiment of method for determining frame timing and/or carrier type, no longer Redundant is stated herein.

Based on above-mentioned second group of synchronizing signal two fields diverse location, UE can obtain frame synchronizing signal, and/or, carrier type information, and can ensure that UE detects one group of PSS and SSS method and current mechanism, mechanism after i.e. on string compatible carrier wave is the same, because PSS and SSS relative position can keep constant, can so greatly reduce the complexity of cell searching. The sending, receiving method of synchronizing signal provided in an embodiment of the present invention is described in further detail below by way of specific embodiment.In the present embodiment, first group of synchronizing signal includes the first synchronizing signal, first synchronizing signal and the second synchronizing signal are sent by identical serving cell, using the first synchronizing signal as master sync signal PSS in the present embodiment, and the second synchronizing signal be auxiliary synchronous signals SSS exemplified by illustrate, it is to be understood that the present invention do not limit so, first synchronizing signal and the second synchronizing signal can also be other synchronizing signals, and the present embodiment is specific as follows：

As shown in figure 3, in base station side, the sending method performed by base station includes：

300, master sync signal PSS transmission information is determined, according to the transmission information of determination, master sync signal PSS is sent.Wherein, PSS transmission information includes PSS transmission sequence, sends cycle, delivery time etc..

In this step, base station sends the number of sequence that PSS used and not limited, can be with less, such as only with 3 Zadoff-Chu sequences, it might even be possible to only with a Zadoff-Chu sequence it is bad ' J.For UE, when it detects PSS, because PSS sequence is less, then the detection time reduction that UE is spent reduces UE detection P S S difficulty, and UE detections performance has obtained effective lifting.It is understood that in communication network where base station, in addition to the base station, in addition to other some base stations, i.e., some cells.Optionally, in this step, base station can use with least one other cell identical sequence in system, and with least one other cell simultaneously to the user equipment send PSS.Base station uses with other cell identical sequences and sends PSS simultaneously with other cells, therefore, it is possible to provide merging gain for UE, further improves UE detection performance.For example, each cell uses same sequence using identical sequence, i.e. the whole network in system, and each cell sends PSS simultaneously.Optionally, in this step, base station sends PSS cycle, i.e. the transmission cycle of PSS can for example use 5ms or 10ms.

301, according to PSS transmission information, and PSS set in advance transmission information and SSS candidate's delivery time corresponding relation, determine SSS candidate's delivery time. The transmission information of PSS employed in this step can be at least one of PSS transmission sequence, transmission cycle, delivery time.The corresponding relation of PSS set in advance transmission information and SSS candidate's delivery time can be direct corresponding relation, i.e. every kind of PSS transmission information correspond to candidate's delivery time of SSS a kind of, it can also be function corresponding relation, SSS candidate's delivery time is the function of PSS transmission information, according to PSS transmission information, SSS candidate's delivery time can be calculated.

Illustrate, as shown in Figure 4, 4 Jia set the PSS transmission cycle as 10ms, delivery time is respectively subframe 0, 10, 20..., and the cycle of SSS candidate's delivery time is pre-defined, for 5ms, each SSS candidate's delivery time is continuous 3 symbols in a subframe, SSS candidate's delivery time and the corresponding relation of PSS delivery time are that the initial time of SSS candidate's delivery time is identical with the initial time of PSS delivery time, therefore, in this step, base station can be according to cycle of above-mentioned corresponding relation and SSS set in advance candidate's delivery time, just can determine that SSS candidate's delivery time is continuous 3 symbols in subframe 0, continuous 3 symbols ... in subframe 5.

302, it is determined that SSS candidate's delivery time in select SSS delivery time, the delivery time of the SSS is all or part of moment in SSS candidate's delivery time.

Specifically, base station can pass through the interference coordination with other cells, select SSS delivery time, so that base station sends the second synchronizing signal using candidate's delivery time different from the second synchronizing signal of the cell of other in communication network, so as to realize the interference coordination between base station and different districts.

Equally by taking Fig. 4 as an example, assuming that in communication network each cell candidate's delivery time all same, second synchronizing signal of so different cells can be sent with different candidate's delivery times respectively, base station can pass through the interference coordination between cell, the second synchronizing signal is sent at the time of in selection candidate's delivery time, such as cell 1 sends the second synchronizing signal with first candidate's delivery time, cell 2 sends the second synchronizing signal with the 5th candidate's delivery time, so for the UE in different districts, the second synchronizing signal of respective cell can be detected, and be to stagger the time-division between the second synchronizing signal of minizone, it is achieved that interference is evaded, improve detection performance.

303, in the delivery time of selection, send SSS.

It will be appreciated by persons skilled in the art that either SSS, or PSS, both It is periodically to send signal, and is not only to send once.

It is described it should be noted that, although the present embodiment is order, but the invention is not restricted to this, those skilled in the art can be adjusted to the order of above steps.As shown in Fig. 5, in the present embodiment, in UE sides, the method for reseptance performed by UE includes：

401, PSS is detected to obtain PSS.

402, according to PSS transmission information, and PSS set in advance transmission information and SSS the couple candidate detection moment corresponding relation, determine the SSS couple candidate detection moment.It should be noted that, in the present embodiment, " candidate's delivery time " respective base station side is described, " couple candidate detection moment " corresponding UE side is described, but both essence is identical, that is the couple candidate detection moment determined by UE is candidate's delivery time determined by base station, and PSS transmission information is identical with the corresponding relation of SSS candidate's delivery time with the corresponding relation at SSS couple candidate detection moment with PSS transmission information.In this step, the transmission information for the PSS that UE is used can be at least one of PSS transmission sequence, transmission cycle, delivery time.The corresponding relation at PSS set in advance transmission information and SSS couple candidate detection moment can be direct corresponding relation, i.e. every kind of PSS transmission information correspond to the couple candidate detection moment of SSS a kind of, it can also be function corresponding relation, the SSS couple candidate detection moment is the function of PSS transmission information, according to PSS transmission information, the SSS couple candidate detection moment can be calculated.

In this step, if PSS transmission information is the PSS transmission cycle, UE can be obtained by presetting, can also be detected and obtain by PSS detection process in step 401.If PSS transmission information is PSS transmission sequence and/or delivery time, UE can be detected and obtained by PSS detection process in step 401.Equally by taking Fig. 4 as an example, ^^ sets the PSS transmission cycle as 10ms, delivery time is respectively subframe 0, 10, 20..., and the cycle of SSS candidate's delivery time is pre-defined, for 5ms, each SSS candidate's delivery time is continuous 3 symbols in a subframe, SSS couple candidate detection moment and the corresponding relation of PSS delivery time are that the initial time at SSS couple candidate detection moment is identical with the initial time of PSS delivery time, therefore, in this step, the delivery time that UE detects PSS is subframe 0, 10..., UE is according to above-mentioned corresponding relation and the cycle at SSS set in advance couple candidate detection moment, The couple candidate detection moment that just can determine that SSS is continuous 3 symbols in subframe 0, continuous 3 symbols ... in subframe 5.

403, it is determined that the couple candidate detection moment, SSS is to obtain SSS for detection.Optionally, at the PSS cycle for sending couple candidate detection moment of the cycle more than SSS, to have at least two couple candidate detection moment between the delivery time of two adjacent PSS, in this case, in this step, UE is when detecting SSS, because the couple candidate detection moment has temporal differentiation, therefore, UE may not necessarily detect SSS all sequences at each moment at least two couple candidate detections moment.For example, at least two couple candidate detections moment, the number of the sequence detected, which is both less than SSS, needs the number of the cell ID or cell group identification indicated.

404, according to the SSS detected, carry out cell identification.

For cell identification, that is, recognize Physical Cell Identifier.Specifically, as the bad l of a unified PSS sequence of the whole network, in this step, UE can determine Physical Cell Identifier according to the SSS of detection sequence, and when the whole network PSS has multiple sequences, UE can combine PSS and SSS sequence to determine Physical Cell Identifier.

Further, improved as one kind of the present embodiment, the method for reseptance of the present embodiment may also include：

UE carries out sign synchronization, synchronizing sub-frame and radio frame synchronization according to PSS.Sign synchronization and synchronizing sub-frame can be obtained according to PSS, because the length of a symbol and a subframe is fixed, and character positions of the PSS in a subframe is also fixed.And because the length of radio frames is 10ms, can also be set to 10ms PSS cycles, then UE is by detecting that PSS can also determine the synchronization of radio frames.It is described it should be noted that, although the present embodiment is order, but the invention is not restricted to this, those skilled in the art can be adjusted to the order of above steps.

The sending, receiving method of synchronizing signal provided in an embodiment of the present invention is described in further detail below by way of another embodiment.

In the present embodiment, first group of synchronizing signal includes being said so that first group of synchronizing signal includes two synchronizing signals of PSS and SSS as an example at least two synchronizing signals, the present embodiment It is bright, PSS and SSS in first group of synchronizing signal are sent by identical serving cell, and the second synchronizing signal is sent from the PSS and SSS of first group of synchronizing signal by different serving cells, second synchronizing signal can be PSS, can also be PSS, it can also be other synchronizing signals, such as find signal, the discovery signal is applied not only to recognize cell, it is also used as the RRM measurement of at least idle states, such as Reference Signal Received Power measurement and/or Reference Signal Received Quality measurement etc., the present embodiment is not limited this.The present embodiment is specific：Under mouthful：As shown in fig. 6, in base station side, the sending method performed by base station includes：

500, send the master sync signal PSS and auxiliary synchronous signals sss of first group of synchronizing signal respectively by same services cell.

501, the subframe and/or wireless frame timing information of SSS and PSS instructions are determined, and according to the subframe and/or wireless frame timing information, determine candidate's delivery time of the second synchronizing signal.

Specifically, PSS and SSS can be used to refer to subframe timing and wireless frame timing information.For subframe timing, the starting point and end point of subframe are just to determine, specifically can detect PSS, or detection PSS and SSS by UE to obtain, because the position of PSS and SSS in subframe is predefined；For wireless frame timing, just it is to determine the starting point and end point of radio frames, it can specifically be obtained by detecting SSS, for example, SSS subframes 0 in a radio frame and subframe 5 are respectively sent once, and the interleaving mode of this sequence sent twice is different, therefore it is subframe 0 which UE can distinguish from this interleaving mode that SSS is sent twice, which is subframe 5, and first symbol of subframe 0 can just regard the frame head of radio frames, i.e. starting point as.Determine after subframe and/or wireless frame timing information, by taking wireless frame timing as an example, the wireless frame timing can also be passed through, radio frame number, and wireless frame timing, radio frame number and the corresponding relation of candidate's delivery time of the second synchronizing signal, determine candidate's delivery time of the second synchronizing signal.Specifically, wireless frame timing information is got, recycle radio frame number, the second synchronizing signal is such as sent in the 50th, 150, on some candidate's delivery times near 250... radio frames, so just can be according to wireless frame timing information and radio frame number, determine the 50th, 150, the position of 250... radio frames, and then be assured that the position of candidate's delivery time of the second synchronizing signal. 502, in candidate's delivery time of identified second synchronizing signal, the delivery time of the second synchronizing signal is selected, the delivery time of the second synchronizing signal is all or part of moment in candidate's delivery time of the second synchronizing signal.

Candidate's delivery time of the second synchronizing signal is determined in above-mentioned steps, some candidate's delivery times such as near 50,150,250... radio frames, the delivery time of the second synchronizing signal can be selected by being engraved in these candidates, specific it is contemplated that the delivery time of the second synchronizing signal of other cells is avoided.

503, in selected delivery time, by the serving cells different with SSS of the PSS from first group of synchronizing signal, send the second synchronizing signal.

It is described it should be noted that, although the present embodiment is order, but the invention is not restricted to this, those skilled in the art can be adjusted to the order of above steps.As shown in fig. 7, in the present embodiment, in UE sides, the method for reseptance performed by UE includes：

600, the PSS and SSS of first group of synchronizing signal are detected respectively to obtain PSS and SSS, and pass through the subframe and/or wireless frame timing information indicated by detection acquisition PSS and SSS.

Specifically, the step of obtaining subframe and/or wireless frame timing information refers to the embodiment shown in Fig. 6.

601, radio frame number is obtained from broadcast channel.

Specifically, UE can obtain radio frame number information from Physical Broadcast Channel.Or, UE can also obtain the information, such as system information block etc. by other broadcast channels.

602, subframe and/or wireless frame timing information according to indicated by the radio frame number of acquisition, PSS and SSS and the subframe indicated by the radio frame number, PSS and the SSS that obtain and

/ or wireless frame timing information and the second synchronizing signal the couple candidate detection moment corresponding relation, determine the couple candidate detection moment of the second synchronizing signal.Specifically, after getting radio frame number, wireless frame timing information, in addition it is also necessary to determine both above-mentioned corresponding relations with the couple candidate detection moment of the second synchronizing signal, the corresponding relation can be pre-defined or base station by signal deployment to UE.For example, the corresponding relation can for the couple candidate detection moment the 50th, 150,250... radio frames it is attached Closely, it is 100ms to send the cycle.Because UE can determine radio frames starting point and end point by wireless frame timing, the sequence of radio frames can be obtained by radio frame number, therefore UE can determine that 4 U.S.As select the position of detection moment.

603, it is determined that the couple candidate detection moment, SSS is to obtain SSS for detection.

Get after the couple candidate detection moment, it is possible to detection sss is engraved in above-mentioned couple candidate detection.

604, according to the SSS detected, carry out cell or cell group identification.

Cell ID or cell group identification can be carried in SSS, therefore UE detects SSS can just obtain the cell ID wherein carried or cell group identification.

In the present embodiment, PSS and SSS can be located at first service cell, and the second synchronizing signal can be located at second service cell, assuming that the first and second serving cells are the cells of alien frequencies, so UE can be by reading PSS and SSS, with other broadcast channels, first it is linked into first service cell, then under the auxiliary of first service cell, such as first service cell notifies the position of the second synchronizing signal in the UE second service cells, especially by radio frame number, wireless frame timing and the corresponding relation at the second synchronizing signal couple candidate detection moment, it is assumed here that the first and second serving cells are synchronous serving cells, so that UE can determine the position of the second synchronizing signal in second service cell, and go to detect the second synchronizing signal without each moment on UE oneself to second service cell, reduce UE detection complexities.

Embodiment with the sending method of aforementioned synchronization signal is corresponding, and the embodiment of the present invention provides a kind of base station 1 again, as shown in figure 8, including：

Information determination unit 10, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit 11, the transmission information for being determined according to information determination unit 10 determines the delivery time of the second synchronizing signal；

Transmitting element 12, the delivery time of the second synchronizing signal for being determined according to moment determining unit 11 sends the second synchronizing signal.Base station 1 provided in an embodiment of the present invention, moment determining unit 11 can determine the delivery time of the second synchronizing signal by the transmission information of first group of synchronizing signal, send single Member 12 sends the second synchronizing signal in these delivery times, therefore, base station 1 can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, therefore, UE can be effectively improved and detect the possibility of the second synchronizing signal, and then effectively improve UE detection performance.Optionally, in one embodiment of the invention, the transmission cycle of the second synchronizing signal can be more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.Particularly, in one embodiment of the invention, the delivery time of the second synchronizing signal is different from the delivery time for the second synchronizing signal that at least one cell in other cells is sent.

In the embodiment of the present invention, optionally, moment determining unit 11 can determine candidate's delivery time of the second synchronizing signal using following three kinds of modes, specific as follows：

First, the transmission information that moment determining unit 11 can be determined according to information determination unit 10 determines candidate's delivery time of the second synchronizing signal；In candidate's delivery time of its determination, selected section or whole candidate's delivery time as the second synchronizing signal delivery time.For example, the transmission information that moment determining unit 11 can be determined with specific reference to described information determining unit, and the corresponding relation of the candidate's delivery time for sending information and second synchronizing signal, determine candidate's delivery time of second synchronizing signal.

Second, transmission information and the corresponding relation of the delivery time for sending information and the second synchronizing signal that moment determining unit 11 can be determined according to described information determining unit, determine the delivery time of second synchronizing signal.

Thirdly, moment determining unit 11 can first determine that candidate's delivery time of second synchronizing signal, then the transmission information determined according to described information determining unit, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

Optionally, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, and the transmission information for first group of synchronizing signal that information determination unit 10 is determined includes the transmission sequence of the first synchronizing signal, sends at least one of cycle, delivery time.For example, the first synchronizing signal can based on synchronizing signal, the second synchronizing signal can be auxiliary synchronous signals, certainly they can also be other synchronizing signals, the present invention this is not done Limit.Optionally, in another embodiment of the present invention, first group of synchronizing signal includes at least two synchronizing signals, and the transmission information for first group of synchronizing signal that information determination unit 10 is determined includes at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information.For example, at least two synchronizing signals that first group of synchronizing signal includes include master sync signal and auxiliary synchronous signals, and the transmission information for first group of synchronizing signal that information determination unit 10 is determined includes subframe and/or wireless frame timing information that master sync signal and auxiliary synchronous signals are indicated.It should be noted that in the embodiment of the present invention, first group of synchronizing signal can be sent by identical cell, first group of synchronizing signal and the second synchronizing signal can be sent by same or different cell.

It is understood that the specific works mode of above-mentioned each functional unit can be found in embodiment of the method above.

Embodiment equally with the sending method of aforementioned synchronization signal is corresponding, and the embodiment of the present invention provides a kind of base station 2 again, as shown in figure 9, including：Including processor 20, communication interface 21, memory 22 and bus 23;

Processor 20, communication interface 21, memory 22 complete mutual communication by bus 23；

Communication interface 21, for the external device communication with base station 2；

Memory 22, for depositing program 221;

Processor 20, the program 221 for performing the storage of memory 22;Wherein, program 221 includes：Information determination unit, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, the transmission information for being determined according to described information determining unit determines the delivery time of the second synchronizing signal；Transmitting element, for the second synchronizing signal for being determined according to the moment determining unit Delivery time sends second synchronizing signal.It will be appreciated that each functional unit is contained in described program in embodiment shown in Fig. 8, the specific works mode of each functional unit refers to the embodiment of the embodiment described in Fig. 8 and the sending method of aforementioned synchronization signal, and no longer Redundant is stated herein.

Base station 2 provided in an embodiment of the present invention, can be by the transmission information of first group of synchronizing signal, determine the delivery time of the second synchronizing signal, the second synchronizing signal is sent in these delivery times, therefore, base station 2 can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, therefore, the possibility that UE detects the second synchronizing signal can be effectively improved, and then effectively improve UE detection performance.

Embodiment equally with the sending method of aforementioned synchronization signal is corresponding, the embodiment of the present invention provides a kind of base station 3 again, as shown in Figure 10, including processor 30 and memory 31, each functional unit is contained in described be contained in processor 30 in embodiment shown in Fig. 8, the specific works mode of each functional unit refers to the embodiment of the embodiment described in Fig. 8 and the sending method of aforementioned synchronization signal, and no longer Redundant is stated herein.

Base station 3 provided in an embodiment of the present invention, can be by the transmission information of first group of synchronizing signal, determine the delivery time of the second synchronizing signal, the second synchronizing signal is sent in these delivery times, therefore, base station 2 can realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, therefore, the possibility that UE detects the second synchronizing signal can be effectively improved, and then effectively improve UE detection performance.In one embodiment of the invention, in addition to：

Second group of synchronizing signal is different in the first field of radio frames and the position of the second field.For example, first field is the subframe 0 to 4 of a radio frames, it is described Second field is the subframe 5 to 9 of a radio frames.So, UE can according to second group of synchronizing signal two fields diverse location, to determine carrier type and/or frame timing information.The carrier type includes backward compatibility carrier wave and new carrier wave, because PS S and S S S are identicals in the position of two fields on backward compatibility carrier wave, and is different in new carrier wave.The new carrier wave is usually non-backward compatible, i.e. the UE of lowest version cannot be accessed by the new carrier wave, cannot be also resident in the new carrier wave；The feature of the new carrier wave can also include at least one of following：EPDCCH public search space receiving common control information is leaned in new carrier wave, such as scheduling system message, beep-page message, the ePDCCH of Stochastic accessing response message, the ePDCCH is with channel information precoding transmissions, and resource allocation is in units of Physical Resource Block or Physical Resource Block pair；Cell specific reference signal in new carrier wave is not that each subframe is sent, such as 5 subframes are sent once；The transport module based on UE specific reference signals is only supported in new carrier wave；Etc..Specifically：

For example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is identical in the first field and the second field, the symbol of such as master sync signal and auxiliary synchronous signals is adjacent and on the master sync signal time rear, other are also not excluded for.But, second group of synchronizing signal is different in the absolute time-domain position of two fields, such as character position is different and/or subframe position is different.Meeting an example of above-mentioned condition is：PS S and S S S are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and P S S and S S S are located at the 3rd symbol and the 4th symbol of the subframe 5 of the second field respectively, and other similar positions are also not excluded for.So, UE is detected after the PS S and S S S of two fields, by the different time interval for second group of synchronizing signal for comparing the two fields, it is assured that frame timing, if second group of synchronizing signal of the previous field of such as UE detection discoveries is a symbol more than 5 subframes apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the first field of a radio frames, and above-mentioned latter field is the second field of a radio frames；It is on the contrary, if second group of synchronizing signal of the previous field of UE detection discoveries is 5 subframes but a few symbol apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the second field of a radio frames, and above-mentioned latter field is the first field of a radio frames.Further, UE can also determine carrier type by above-mentioned similar method by the position relationship of second group of synchronizing signal of two fields. In another example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is different in the first field and the second field, such as PS S and S S S are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and PS S and S S S are located at the 2nd symbol and the 4th symbol of the subframe 5 of the second field respectively.Other are also not excluded for compared to character position, or can also be that subframe position is different, such as second group synchronizing signal takes different subframes in two fields.Specific same above-described embodiment of method for determining frame timing and/or carrier type, no longer Redundant is stated herein.Based on above-mentioned second group of synchronizing signal two fields diverse location, UE can obtain frame synchronizing signal, and/or, carrier type information, and can ensure that UE detects one group of P S S and S S S method and current mechanism, mechanism after i.e. on string compatible carrier wave is the same, because P S S and S S S relative position can keep constant, can so greatly reduce the complexity of cell searching.

Embodiment with the method for reseptance of aforementioned synchronization signal is corresponding, and the embodiment of the present invention provides a kind of UE4 again, as shown in Fig. 11, including：Detection unit 40, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit 41, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

Detection unit 40 is additionally operable to the detection moment determined in moment determining unit 41, detects the second synchronizing signal to obtain the second synchronizing signal.UE4 provided in an embodiment of the present invention, the detection moment of the second synchronizing signal can be determined by the transmission information of the first synchronizing signal, and detect the second synchronizing signal in the detection moment of the second synchronizing signal, therefore, base station is allowd to realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, UE4 is capable of determining that the detection moment of the second synchronizing signal, and detect the second synchronizing signal in these detection moments, therefore, it is possible to effectively improve the possibility that UE4 detects the second synchronizing signal, and then effectively improve UE detection. Particularly, in one embodiment of the invention, the transmission cycle of the second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

Optionally, moment determining unit 41 can determine candidate's moment of the second synchronizing signal using the following two kinds mode, specific as follows：

First, moment determining unit 41 can determine the detection moment of the second synchronizing signal according to the transmission information, and the corresponding relation for sending information and the detection moment of the second synchronizing signal.

Second, moment determining unit 41 can first determine that the couple candidate detection moment of the second synchronizing signal；Then, according to the transmission information, selected section or whole couple candidate detection moment as second synchronizing signal detection moment.For example, moment determining unit 41 can be specifically for：According to the transmission information and the corresponding relation at the couple candidate detection moment of second synchronizing signal, the part couple candidate detection moment corresponding with the transmission information is selected as the detection moment of second synchronizing signal.It should be noted that in the embodiment of the present invention, all or part of moment that the second synchronizing signal can be in detection moment sends.Optionally, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, and the transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.Specifically, in one embodiment of the invention, the transmission information of first group of synchronizing signal includes the transmission cycle of first synchronizing signal, and as shown in figure 12, the UE of the embodiment also includes：

Acquiring unit 42, the transmission cycle for obtaining the first synchronizing signal, the transmission cycle of the first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to detection unit 40 obtains the transmission cycle of the first synchronizing signal.

It is used as one kind deformation of the embodiment, in another embodiment of the present invention, the transmission information of first group of synchronizing signal includes the transmission sequence of the first synchronizing signal and/or the delivery time of first synchronizing signal, now, acquiring unit 42 is used for the transmission cycle for obtaining the first synchronizing signal, and the transmission cycle of the first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to detection unit 40, obtains the transmission cycle of the first synchronizing signal. Specifically, in one embodiment of the invention, the detection moment determined described at least two is included between the delivery time of adjacent two the first synchronizing signals, at least two detection moment includes the first detection moment and the second detection moment；Now, detection unit 40 specifically for：

In the first detection moment, detect the First ray set of the second synchronizing signal, in the second detection moment, the second arrangement set of the second synchronizing signal is detected, at least one of the number of sequence is less than total number or the total number of cell group identification that second synchronizing signal needs the cell ID of instruction in the second arrangement set of the number of sequence and institute in First ray set.Optionally, the sequence in First ray set is identical with the sequence in second arrangement set.

Further, in one embodiment of the invention, first group of synchronizing signal includes the first synchronizing signal, as shown in figure 13, and the UE that the embodiment is provided also includes：Synchronization unit 43, for according to the first synchronizing signal, carrying out sign synchronization, synchronizing sub-frame and radio frame synchronization.For example, the first synchronizing signal can be master sync signal, and the second synchronizing signal can be auxiliary synchronous signals.Specifically, in an alternative embodiment of the invention, first group of synchronizing signal includes at least two synchronizing signals, and the transmission information of first group of synchronizing signal includes at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information；Now, detection unit 40 specifically for：At least two synchronizing signal of first group of synchronizing signal is detected respectively to obtain at least two synchronizing signal.

Further, as shown in figure 14, the UE of the embodiment also includes：

Acquiring unit 44, for obtaining radio frame number from broadcast channel, and by detecting at least one synchronizing signal in first group of synchronizing signal, obtain at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information；Now, moment determining unit 41 specifically for：

The son that radio frame number, the acquiring unit 44 that the subframe and/or wireless frame timing information and the acquiring unit 44 that at least one synchronizing signal is indicated in first group of synchronizing signal that radio frame number, the acquiring unit 44 obtained according to acquiring unit 44 is obtained are obtained are obtained The corresponding relation of the detection moment of frame and/or wireless frame timing information and the second synchronizing signal, determines the detection moment of the second synchronizing signal.

For example, at least two synchronizing signals that first group of synchronizing signal includes include master sync signal and auxiliary synchronous signals；The transmission information of first group of synchronizing signal includes subframe and/or the wireless frame timing information that master sync signal and auxiliary synchronous signals are indicated.

It should be noted that in the embodiment of the present invention, first group of synchronizing signal can be sent by identical cell, first group of synchronizing signal and the second synchronizing signal can be sent by same or different cell.

Embodiment with the method for reseptance of aforementioned synchronization signal is corresponding, and the embodiment of the present invention provides a kind of UE5 again, as shown in figure 15, including processor 50, communication interface 51, memory 52 and bus 53;Wherein, processor 50, communication interface 51, memory 52 complete mutual communication by bus 53；

Communication interface 51, for the external device communication with UE5；

Memory 52, for depositing program 521

Processor 50, the program 521 for performing the storage of memory 52

Wherein, described program 521 includes：

Detection unit, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

It will be understood that, each functional units into the embodiment shown in Figure 14 of Fig. 11 may be included in described program, the specific works mode of each functional unit refers to the embodiment of the embodiment described in Fig. 11 to Figure 14 and the sending method of aforementioned synchronization signal, and no longer Redundant is stated herein.UE5 provided in an embodiment of the present invention, can be by the transmission information of the first synchronizing signal Determine the detection moment of the second synchronizing signal, and detect the second synchronizing signal in the detection moment of the second synchronizing signal, therefore, base station is allowd to realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, UE5 is capable of determining that the detection moment of the second synchronizing signal, and detect the second synchronizing signal in these detection moments, therefore, it is possible to effectively improve the possibility that UE5 detects the second synchronizing signal, and then effectively improve UE detection

6 an ancient type of spoons

fi 。

Embodiment equally with the sending method of aforementioned synchronization signal is corresponding, the embodiment of the present invention provides a kind of UE6 again, as shown in figure 16, including processor 60 and memory 61, each functional units into the embodiment shown in Figure 14 of Fig. 11 are contained in processor 60, the specific works mode of each functional unit refers to Fig. 11 to embodiment illustrated in fig. 14 and the embodiment of the sending method of aforementioned synchronization signal, and no longer Redundant is stated herein.

UE6 provided in an embodiment of the present invention, the detection moment of the second synchronizing signal can be determined by the transmission information of the first synchronizing signal, and detect the second synchronizing signal in the detection moment of the second synchronizing signal, therefore, base station is allowd to realize the interference coordination between other cells by selecting the delivery time of the second synchronizing signal, base station can be avoided with other multiple cells while sending the second synchronizing signal, so as to the interference produced when sending the second synchronizing signal of effectively reduction base station and other cells, UE6 is capable of determining that the detection moment of the second synchronizing signal, and detect the second synchronizing signal in these detection moments, therefore, it is possible to effectively improve the possibility that UE6 detects the second synchronizing signal, and then effectively improve UE detection

6 an ancient type of spoons

fi .In one embodiment of the invention, in addition to：

Second group of synchronizing signal is different in the first field of radio frames and the position of the second field.For example, first field is the subframe 0 to 4 of a radio frames, second field is the subframe 5 to 9 of a radio frames.So, UE can be according to second group Synchronizing signal two fields diverse location, to determine carrier type and/or frame timing information.The carrier type includes backward compatibility carrier wave and new carrier wave, because on backward compatibility carrier wave

PS S and S S S are identicals in the position of two fields, and are different in new carrier wave.The new carrier wave is usually non-backward compatible, i.e. the UE of lowest version cannot be accessed by the new carrier wave, cannot be also resident in the new carrier wave；The feature of the new carrier wave can also include at least one of following：EPDCCH public search space receiving common control information is leaned in new carrier wave, such as scheduling system message, beep-page message, the ePDCCH of Stochastic accessing response message, the ePDCCH is with channel information precoding transmissions, and resource allocation is in units of Physical Resource Block or Physical Resource Block pair；Cell specific reference signal in new carrier wave is not that each subframe is sent, such as 5 subframes are sent once；The transport module based on UE specific reference signals is only supported in new carrier wave；Etc..Specifically：

For example, the relative position relation of master sync signal and auxiliary synchronous signals in second group of synchronizing signal is identical in the first field and the second field, the symbol of such as master sync signal and auxiliary synchronous signals is adjacent and on the master sync signal time rear, other are also not excluded for.But, second group of synchronizing signal is different in the absolute time-domain position of two fields, such as character position is different and/or subframe position is different.Meeting an example of above-mentioned condition is：PS S and S S S are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and P S S and S S S are located at the 3rd symbol and the 4th symbol of the subframe 5 of the second field respectively, and other similar positions are also not excluded for.So, UE is detected after the PS S and S S S of two fields, by the different time interval for second group of synchronizing signal for comparing the two fields, it is assured that frame timing, if second group of synchronizing signal of the previous field of such as UE detection discoveries is a symbol more than 5 subframes apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the first field of a radio frames, and above-mentioned latter field is the second field of a radio frames；It is on the contrary, if second group of synchronizing signal of the previous field of UE detection discoveries is 5 subframes but a few symbol apart from the time interval of second group of synchronizing signal of latter field, then UE determines that above-mentioned previous field is the second field of a radio frames, and above-mentioned latter field is the first field of a radio frames.Further, UE can also determine carrier type by above-mentioned similar method by the position relationship of second group of synchronizing signal of two fields.

In another example, master sync signal and auxiliary synchronous signals in second group of synchronizing signal it is relative Position relationship is different in the first field and the second field, such as PSS and SSS are located at the 2nd symbol and the 3rd symbol of the subframe 0 of the first field respectively, and PSS and SSS are located at the 2nd symbol and the 4th symbol of the subframe 5 of the second field respectively.Other are also not excluded for compared to character position, or can also be that subframe position is different, such as second group synchronizing signal takes different subframes in two fields.Specific same above-described embodiment of method for determining frame timing and/or carrier type, no longer Redundant is stated herein.

Based on above-mentioned second group of synchronizing signal two fields diverse location, UE can obtain frame synchronizing signal, and/or, carrier type information, and can ensure that UE detects one group of PSS and SSS method and current mechanism, mechanism after i.e. on string compatible carrier wave is the same, because PSS and SSS relative position can keep constant, can so greatly reduce the complexity of cell searching.

One of ordinary skill in the art will appreciate that：Realizing all or part of flow of above method embodiment can be completed by the related hardware of computer program instructions, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

More than; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.

Claims

Claims

1st, a kind of sending method of synchronizing signal, it is characterised in that including：The transmission information of first group of synchronizing signal is determined, first group of synchronizing signal includes at least one synchronizing signal；

The delivery time of the second synchronizing signal is determined according to the transmission information；

Second synchronizing signal is sent according to the delivery time of second synchronizing signal.

2nd, sending method according to claim 1, it is characterised in that the transmission cycle of second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

3rd, sending method according to claim 1, it is characterised in that the delivery time of second synchronizing signal is different from the delivery time for the second synchronizing signal that at least one cell in other cells is sent.

4th, the sending method according to any one in claims 1 to 3, it is characterised in that described to determine that the delivery time of the second synchronizing signal includes according to the transmission information：Candidate's delivery time of second synchronizing signal is determined according to the transmission information；In candidate's delivery time of the determination, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

5th, sending method according to claim 4, it is characterised in that described to determine that candidate's delivery time of second synchronizing signal includes according to the transmission information：

According to the corresponding relation of the transmission information, and the candidate's delivery time for sending information and second synchronizing signal, candidate's delivery time of second synchronizing signal is determined.

6th, the sending method according to any one in claims 1 to 3, it is characterised in that described to determine that the delivery time of the second synchronizing signal includes according to the transmission information：According to the transmission information and the corresponding relation of the delivery time for sending information and the second synchronizing signal, the delivery time of second synchronizing signal is determined.

7th, the sending method according to any one in claims 1 to 3, it is characterised in that described to determine that the delivery time of the second synchronizing signal includes according to the transmission information： Determine candidate's delivery time of second synchronizing signal；

According to the transmission information, selected section or whole candidate's delivery times as second synchronizing signal delivery time.

8th, the sending method according to any one in claim 1 to 7, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；

The transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

9th, sending method according to claim 8, it is characterised in that first synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals.

10th, the sending method according to any one in claim 1 to 7, it is characterised in that

First group of synchronizing signal includes at least two synchronizing signals；

The transmission information of first group of synchronizing signal includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal.

11, sending method according to claim 10, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；The transmission information of first group of synchronizing signal includes subframe and/or the wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

12nd, the sending method according to any one in claim 1 to 11, it is characterised in that

First group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.

13rd, a kind of method of reseptance of synchronizing signal, it is characterised in that including: First group of synchronizing signal is detected to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；

According to the transmission information of first group of synchronizing signal, the detection moment of second synchronizing signal is determined；In the detection moment of the determination, detect second synchronizing signal to obtain the second synchronizing signal.

14th, method of reseptance according to claim 13, it is characterised in that the transmission cycle of second synchronizing signal got is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

15th, the method for reseptance according to claim 13 or 14, it is characterised in that the transmission information according to first group of synchronizing signal, determining the detection moment of second synchronizing signal includes：According to the transmission information, and the corresponding relation for sending information and the detection moment of second synchronizing signal, the detection moment of second synchronizing signal is determined.

16th, the method for reseptance according to claim 13 or 14, it is characterised in that the transmission information according to first group of synchronizing signal, determining the detection moment of second synchronizing signal includes：Determine the couple candidate detection moment of second synchronizing signal；

According to the transmission information, selected section or whole couple candidate detection moment as second synchronizing signal detection moment.

17th, method of reseptance according to claim 16, it is characterised in that described according to the transmission information, the selected section couple candidate detection moment includes as the detection moment of second synchronizing signal：According to the transmission information and the corresponding relation at the couple candidate detection moment of second synchronizing signal, the part couple candidate detection moment corresponding with the transmission information is selected as the detection moment of second synchronizing signal.

18, the method for reseptance according to any one in claim 13 to 17, it is characterised in that All or part of moment of second synchronizing signal in the detection moment sends.

19th, the method for reseptance according to any one in claim 13 to 18, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；

The transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

20th, method of reseptance according to claim 19, it is characterised in that

The transmission information of first group of synchronizing signal includes the transmission cycle of first synchronizing signal；

Methods described also includes：

The transmission cycle of first synchronizing signal is obtained, the transmission cycle of first synchronizing signal pre-sets；Or,

According to the first synchronizing signal of the acquisition, the transmission cycle of first synchronizing signal is obtained.

21st, method of reseptance according to claim 19, it is characterised in that the transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal and/or the delivery time of first synchronizing signal；

Methods described also includes：According to the first of the acquisition group of synchronizing signal, the transmission sequence of first synchronizing signal and/or the delivery time of first synchronizing signal are obtained.

22nd, the method for reseptance according to any one in claim 19 to 21, it is characterised in that

Include the detection moment determined described at least two between the delivery time of two adjacent first synchronizing signals, at least two detection moment includes the first detection moment and the second detection moment；In the detection moment of the determination, detect that second synchronizing signal includes to obtain the second synchronizing signal：

In first detection moment, the First ray set of second synchronizing signal is detected, In second detection moment, the second arrangement set of second synchronizing signal is detected, at least one of number of sequence is less than the total number or the total number of cell group identification of cell ID that second synchronizing signal needs to indicate in the number of sequence and second arrangement set in the First ray set.

23rd, method of reseptance according to claim 22, it is characterised in that the sequence in the First ray set is identical with the sequence in second arrangement set.

24th, the method for reseptance according to claim 19 to 23 any one, it is characterised in that methods described also includes：According to first synchronizing signal, sign synchronization, synchronizing sub-frame and radio frame synchronization are carried out.

25th, the method for reseptance according to any one of claim 19 to 24, it is characterised in that

First synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals.

26th, the method for reseptance according to any one of claim 13 to 18, it is characterised in that

First group of synchronizing signal includes at least two synchronizing signals；

The transmission information of first group of synchronizing signal includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal；

First group of synchronizing signal of the detection is included with obtaining first group of synchronizing signal：At least two synchronizing signal of first group of synchronizing signal is detected respectively to obtain at least two synchronizing signal.

27th, method of reseptance according to claim 26, it is characterised in that methods described also includes：Radio frame number is obtained from broadcast channel；According to the first of the acquisition group of synchronizing signal, at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information are obtained；

The transmission information according to first group of synchronizing signal, determines that described second is synchronous The detection moment of signal includes：The subframe and/or the corresponding relation of the detection moment of wireless frame timing information and the radio frame number of the acquisition, the subframe of the acquisition and/or wireless frame timing information and the second synchronizing signal indicated according at least one synchronizing signal in the radio frame number of the acquisition, first group of synchronizing signal of the acquisition, determines the detection moment of second synchronizing signal.

28th, the method for reseptance according to claim any one of 26-27, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；The transmission information of first group of synchronizing signal includes subframe and/or the wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

29th, the method for reseptance according to claim any one of 13-28, it is characterised in that first group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.

30th, a kind of base station, it is characterised in that including：Information determination unit, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, the transmission information for being determined according to described information determining unit determines the delivery time of the second synchronizing signal；Transmitting element, the delivery time of the second synchronizing signal for being determined according to the moment determining unit sends second synchronizing signal.

31, base station according to claim 30, it is characterised in that the transmission cycle of second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

32nd, the base station according to claim 31, it is characterised in that the delivery time of second synchronizing signal is different from the delivery time for the second synchronizing signal that at least one cell in other cells is sent.

33rd, the base station according to any one in claim 30 to 32, its feature exists In, the moment determining unit specifically for：The transmission information determined according to described information determining unit determines candidate's delivery time of second synchronizing signal；

In candidate's delivery time of the determination, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

34th, base station according to claim 33, it is characterised in that the moment determining unit specifically for：The transmission information determined according to described information determining unit, and the transmission information and the corresponding relation of candidate's delivery time of second synchronizing signal, determine candidate's delivery time of second synchronizing signal.

35th, the base station according to any one in claim 30 to 32, it is characterised in that the moment determining unit specifically for：The transmission information and the corresponding relation of the delivery time for sending information and the second synchronizing signal determined according to described information determining unit, determines the delivery time of second synchronizing signal.

36th, the base station according to any one in claim 30 to 32, it is characterised in that the moment determining unit specifically for：Determine candidate's delivery time of second synchronizing signal；The transmission information determined according to described information determining unit, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

37th, the base station according to any one in claim 30 to 36, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；The transmission information for first group of synchronizing signal that described information determining unit is determined includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

38, the base station according to claim 37, it is characterised in that first synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals. 39th, the base station according to any one in claim 30 to 36, it is characterised in that

First group of synchronizing signal includes at least two synchronizing signals；The transmission information for first group of synchronizing signal that described information determining unit is determined includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal.

40th, the base station according to claim 39, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；The transmission information for first group of synchronizing signal that described information determining unit is determined includes subframe and/or the wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

41st, the base station according to claim 30 to 40 any one, it is characterised in that first group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.

42nd, a kind of user equipment, it is characterised in that including：Detection unit, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

The detection unit is additionally operable to the detection moment determined in the moment determining unit, detects second synchronizing signal to obtain the second synchronizing signal.

43rd, user equipment according to claim 42, it is characterised in that the transmission cycle of second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

44th, the user equipment according to claim 42 or 43, it is characterised in that the moment determining unit specifically for： According to the transmission information, and the corresponding relation for sending information and the detection moment of second synchronizing signal, the detection moment of second synchronizing signal is determined.

45th, the user equipment according to claim 42 or 43, it is characterised in that the moment determining unit specifically for：Determine the couple candidate detection moment of second synchronizing signal；

According to the transmission information, selected section or whole couple candidate detection moment as second synchronizing signal detection moment.

46th, user equipment according to claim 45, it is characterised in that the moment determining unit specifically for：According to the transmission information and the corresponding relation at the couple candidate detection moment of second synchronizing signal, the part couple candidate detection moment corresponding with the transmission information is selected as the detection moment of second synchronizing signal.

47th, the user equipment according to any one in claim 42 to 46, it is characterised in that

All or part of moment of second synchronizing signal in the detection moment sends.

48th, the user equipment according to any one in claim 42 to 47, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；

The transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

49th, user equipment according to claim 48, it is characterised in that the transmission information of first group of synchronizing signal includes the transmission cycle of first synchronizing signal；

The user equipment also includes：Acquiring unit, transmission cycle for obtaining first synchronizing signal, the transmission cycle of first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to the detection unit, obtains the transmission cycle of first synchronizing signal.

50th, user equipment according to claim 48, it is characterised in that The transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal and/or the delivery time of first synchronizing signal；The user equipment also includes：Acquiring unit, transmission cycle for obtaining first synchronizing signal, the transmission cycle of first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to the detection unit, obtains the transmission cycle of first synchronizing signal.

51, the user equipment according to any one in claim 48 to 50, it is characterised in that

Include the detection moment determined described at least two between the delivery time of two adjacent first synchronizing signals, at least two detection moment includes the first detection moment and the second detection moment；

The detection unit specifically for：In first detection moment, detect the First ray set of second synchronizing signal, in second detection moment, the second arrangement set of second synchronizing signal is detected, at least one of number of sequence is less than the total number or the total number of cell group identification of cell ID that second synchronizing signal needs to indicate in the number of sequence and second arrangement set in the First ray set.

52nd, the user equipment according to claim 51, it is characterised in that the sequence in the First ray set is identical with the sequence in second arrangement set.

53rd, the user equipment according to claim 48 to 52 any one, it is characterised in that the user equipment also includes：Synchronization unit, for according to first synchronizing signal, carrying out sign synchronization, synchronizing sub-frame and radio frame synchronization.

54th, the user equipment according to any one of claim 48 to 53, it is characterised in that

First synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals.

55th, the user equipment according to any one of claim 42 to 47, its feature exists In,

First group of synchronizing signal includes at least two synchronizing signals；

The transmission information of first group of synchronizing signal includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal；

The detection unit specifically for：At least two synchronizing signal of first group of synchronizing signal is detected respectively to obtain at least two synchronizing signal.

56th, user equipment according to claim 55, it is characterised in that the user equipment also includes：Acquiring unit, for obtaining radio frame number from broadcast channel, and by detecting at least one synchronizing signal in first group of synchronizing signal, obtain at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information；

The moment determining unit specifically for：The subframe and/or the corresponding relation of the detection moment of wireless frame timing information and the radio frame number of the acquisition, the subframe of the acquisition and/or wireless frame timing information and the second synchronizing signal indicated according at least one synchronizing signal in the radio frame number of the acquisition, first group of synchronizing signal of the acquisition, determines the detection moment of second synchronizing signal.

57th, the user equipment according to claim any one of 55-56, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；

The transmission information of first group of synchronizing signal includes subframe and/or the wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

58th, the user equipment according to claim any one of 42-57, it is characterised in that first group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.

59th, a kind of base station, it is characterised in that the base station includes processor, communication interface, memory and bus； Wherein, processor, communication interface, memory complete mutual communication by bus；The communication interface, is used for and external device communication；

The memory, for depositing program；

The processor, for performing described program；Wherein, described program includes：Information determination unit, the transmission information for determining first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, the transmission information for being determined according to described information determining unit determines the delivery time of the second synchronizing signal；Transmitting element, the delivery time of the second synchronizing signal for being determined according to the moment determining unit sends second synchronizing signal.

60th, base station according to claim 59, it is characterised in that the transmission cycle of second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

61st, base station according to claim 60, it is characterised in that the delivery time of second synchronizing signal is different from the delivery time for the second synchronizing signal that at least one cell in other cells is sent.

62nd, the base station according to any one in claim 59 to 61, it is characterised in that the moment determining unit specifically for：The transmission information determined according to described information determining unit determines candidate's delivery time of second synchronizing signal；

In candidate's delivery time of the determination, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

63rd, base station according to claim 62, it is characterised in that the moment determining unit specifically for：The transmission information determined according to described information determining unit, and the transmission information and the corresponding relation of candidate's delivery time of second synchronizing signal, determine candidate's delivery time of second synchronizing signal. 64th, the base station according to any one in claim 59 to 61, it is characterised in that the moment determining unit specifically for：The transmission information and the corresponding relation of the delivery time for sending information and the second synchronizing signal determined according to described information determining unit, determines the delivery time of second synchronizing signal.

65th, the base station according to any one in claim 59 to 61, it is characterised in that the moment determining unit specifically for：Determine candidate's delivery time of second synchronizing signal；

The transmission information determined according to described information determining unit, selected section or whole candidate's delivery time as second synchronizing signal delivery time.

66th, the base station according to any one in claim 59 to 65, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；The transmission information for first group of synchronizing signal that described information determining unit is determined includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

67th, base station according to claim 66, it is characterised in that first synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals.

68th, the base station according to any one in claim 59 to 65, it is characterised in that

First group of synchronizing signal includes at least two synchronizing signals；The transmission information for first group of synchronizing signal that described information determining unit is determined includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal.

69th, base station according to claim 68, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；The transmission information for first group of synchronizing signal that described information determining unit is determined includes Subframe and/or wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

70th, the base station according to claim 59 to 69 any one, it is characterised in that first group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.

71st, a kind of user equipment, it is characterised in that the subscriber's installation includes processor, communication interface, memory and bus；

Wherein, processor, communication interface, memory complete mutual communication by bus；The communication interface, is used for and external device communication；The memory, for depositing program；

The processor, for performing described program；

Wherein, described program includes：

Detection unit, for detecting first group of synchronizing signal to obtain first group of synchronizing signal, first group of synchronizing signal includes at least one synchronizing signal；Moment determining unit, for the transmission information according to first group of synchronizing signal, determines the detection moment of second synchronizing signal；

The detection unit is additionally operable to the detection moment determined in the moment determining unit, detects second synchronizing signal to obtain the second synchronizing signal.

72nd, the user equipment according to claim 71, it is characterised in that the transmission cycle of second synchronizing signal is more than the transmission cycle of at least one synchronizing signal in first group of synchronizing signal.

73rd, the user equipment according to claim 71 or 72, it is characterised in that the moment determining unit specifically for：According to the transmission information, and the corresponding relation for sending information and the detection moment of second synchronizing signal, the detection moment of second synchronizing signal is determined. 74th, the user equipment according to claim 71 or 72, it is characterised in that the moment determining unit specifically for：Determine the couple candidate detection moment of second synchronizing signal；

According to the transmission information, selected section or whole couple candidate detection moment as second synchronizing signal detection moment.

75th, the user equipment according to claim 74, it is characterised in that the moment determining unit specifically for：According to the transmission information and the corresponding relation at the couple candidate detection moment of second synchronizing signal, the part couple candidate detection moment corresponding with the transmission information is selected as the detection moment of second synchronizing signal.

76th, the user equipment according to any one in claim 71 to 75, it is characterised in that

All or part of moment of second synchronizing signal in the detection moment sends.

77th, the user equipment according to any one in claim 71 to 76, it is characterised in that

First group of synchronizing signal includes the first synchronizing signal；

The transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal, sends at least one of cycle, delivery time.

78th, the user equipment according to claim 77, it is characterised in that the transmission information of first group of synchronizing signal includes the transmission cycle of first synchronizing signal；

Described program also includes：Acquiring unit, transmission cycle for obtaining first synchronizing signal, the transmission cycle of first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to the detection unit, obtains the transmission cycle of first synchronizing signal.

79th, the user equipment according to claim 77, it is characterised in that the transmission information of first group of synchronizing signal includes the transmission sequence of first synchronizing signal and/or the delivery time of first synchronizing signal； Described program also includes：Acquiring unit, transmission cycle for obtaining first synchronizing signal, the transmission cycle of first synchronizing signal pre-sets, or, the first synchronizing signal obtained according to the detection unit, obtains the transmission cycle of first synchronizing signal.

80th, the user equipment according to any one in claim 77 to 79, it is characterised in that

Include the detection moment determined described at least two between the delivery time of two adjacent first synchronizing signals, at least two detection moment includes the first detection moment and the second detection moment；

The detection unit specifically for：In first detection moment, detect the First ray set of second synchronizing signal, in second detection moment, the second arrangement set of second synchronizing signal is detected, at least one of number of sequence is less than the total number or the total number of cell group identification of cell ID that second synchronizing signal needs to indicate in the number of sequence and second arrangement set in the First ray set.

81st, the user equipment according to claim 80, it is characterised in that the sequence in the First ray set is identical with the sequence in second arrangement set.

82nd, the user equipment according to claim 77 to 81 any one, it is characterised in that the user equipment also includes：Synchronization unit, for according to first synchronizing signal, carrying out sign synchronization, synchronizing sub-frame and radio frame synchronization.

83rd, the user equipment according to any one of claim 77 to 82, it is characterised in that

First synchronizing signal is master sync signal；Second synchronizing signal is auxiliary synchronous signals.

84th, the user equipment according to any one of claim 71 to 76, it is characterised in that

First group of synchronizing signal includes at least two synchronizing signals； The transmission information of first group of synchronizing signal includes the subframe and/or wireless frame timing information that at least one synchronizing signal is indicated in first group of synchronizing signal；

The detection unit specifically for：At least two synchronizing signal of first group of synchronizing signal is detected respectively to obtain at least two synchronizing signal.

85th, the user equipment according to claim 84, it is characterised in that described program also includes：Acquiring unit, for obtaining radio frame number from broadcast channel, and by detecting at least one synchronizing signal in first group of synchronizing signal, obtain at least one synchronizing signal is indicated in first group of synchronizing signal subframe and/or wireless frame timing information；

The moment determining unit specifically for：The subframe and/or the corresponding relation of the detection moment of wireless frame timing information and the radio frame number of the acquisition, the subframe of the acquisition and/or wireless frame timing information and the second synchronizing signal indicated according at least one synchronizing signal in the radio frame number of the acquisition, first group of synchronizing signal of the acquisition, determines the detection moment of second synchronizing signal.

86th, the user equipment according to any one of claim 84- 85, it is characterised in that at least two synchronizing signal includes master sync signal and auxiliary synchronous signals；

The transmission information of first group of synchronizing signal includes subframe and/or the wireless frame timing information that the master sync signal and the auxiliary synchronous signals are indicated.

87th, the user equipment according to any one of claim 7 1-86, it is characterised in that first group of synchronizing signal is sent by identical cell；

First group of synchronizing signal and second synchronizing signal are sent by same or different cell.