CN103391264B

CN103391264B - Method and device for identifying carrier wave type

Info

Publication number: CN103391264B
Application number: CN201210140946.9A
Authority: CN
Inventors: 高雪娟; 潘学明
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-05-08
Filing date: 2012-05-08
Publication date: 2017-04-19
Anticipated expiration: 2032-05-08
Also published as: CN103391264A; WO2013166961A1

Abstract

The invention discloses a method and device for identifying a carrier wave type and relates to the technical field of wireless communication. The method and device are used for solving the problem how to indentify the carrier wave type by a terminal. According to the embodiment, the terminal can determine the type of a current carrier wave according to the position relation between the resource where a detected synchronous signal on the current carrier wave is located and the resource where a detected PBCH is located, or according to the PBCH detected on the current carrier wave, or according to the position relation between the resource where the synchronous signal detected on the current carrier wave is located and the resource where a detected CRS is located, or according to a transmission subframe of the CRS on the current carrier wave, or according to a frequency domain resource used for transmitting the synchronous signal detected on the current carrier wave. Therefore, the problem how to identify the type of the carrier wave by the terminal is solved.

Description

The recognition methodss of carrier type and equipment

Technical field

The present invention relates to wireless communication field, more particularly to a kind of recognition methodss and the equipment of carrier type.

Background technology

In long-term evolution upgrading（Long Term Evolution-Advanced, LTE-A）In system, the peak value speed of system Rate compares Long Term Evolution（Long Term Evolution, LTE）System has huge raising, it is desirable to reach descending 1Gbps, up 500Mbps.Therefore, lte-a system needs terminal extension available bandwidth, will same base station（eNB）Under it is multiple continuous or Discontinuous carrier aggregation together, while be user equipment（User Equipment, UE）Service, to provide required speed Rate, as shown in Figure 1.These carrier waves for condensing together are also called member carrier（Component Carrier, CC）.Each is little Area can be a member carrier, the cell under different eNB（Member carrier）Can not be polymerized.In in order to ensure LTE system The carrier operation that UE can be polymerized at each, each carrier wave is maximum to be less than 20MHz.

Downlink reference signal in lte-a system mainly includes cell own reference signal（Cell-specific Reference Signals, CRS）, downlink user DRS (Dedicated Reference Signal)（UE-specific Reference Signal, URS, Or also referred to as Downlink or Dedicated Reference Signal, DRS）, location reference signals （Positioning Reference Signal, PRS）, channel state information reference signals（Channel State Information Reference Signal, CSI-RS）.

CRS supports 1,2,4 antenna port transmission, is mainly used in the data demodulation of down channel, and row in each of the lower All there is transmission in frame, in a Physical Resource Block（Physical Resource Block, PRB）In mapping mode such as Fig. 2 a With shown in Fig. 2 b, Fig. 2 a are conventional cyclic prefix（Cyclic Prefix, CP）Under mapping mode, Fig. 2 b be extension CP under Mapping mode.CRS is produced based on pseudo-random sequence c (i), equation below（1）, c (i) is in each OFDM （Orthogonal Frequency Division Multiplexing, OFDM）Symbol is based on time-gap number n_s, OFDM symbol Numbering l, cell IDAnd parameter N that cyclic prefix type is related_CPInitialized, i.e., transmitted in each OFDM symbol CRS sequences it is different, such as formula（2）It is shown.The corresponding CRS sequences of 1 OFDM symbol are based on maximum bandwidth（Generally 20MHz, with Physical Resource Block（PRB）It is 110PRB for unit）In the CRS symbol numbers that need on 1 antenna port produce, Single antenna port includes 2 CRS symbols in a PRB in an OFDM symbol, therefore, the sequence length that CRS is generated isThe CRS sequences are mapped on each PRB in maximum bandwidth according to maximum bandwidth, if current downlink system bandwidth Less than maximum bandwidth, then the actually used current downlink system bandwidth for being as mapped to maximum bandwidth frequency band central authorities is corresponding CRS in PRB.

Wherein,

DRS supports 1 ~ 8 antenna port transmission, only sends out on the PRB that the downlink data using transmission mode 7 ~ 9 is located Send.Version 10（Rel-10）Middle regulation, in DRS and Physical Broadcast Channel（Physical Broadcast Channel, PBCH） Or synchronizing signal exists in the PRB of resource overlap in same subframe, DRS does not send, therefore base can not be transmitted in these PRB In the downlink data of DRS demodulation, but the downlink data demodulated based on CRS can be transmitted.

Cell searching is the first step that UE is linked into a cell, and by the process, UE can be obtained and be accessed cell Down-going synchronous, acquisition cell identity information（Cell ID）With cell relevant configuration information, to ensure normal works of the UE in the cell Make.The main of cell searching includes that synchronization signal detection and PBCH are received.

Synchronizing signal includes master sync signal（Primary Synchronized Signal, PSS）And auxiliary synchronous signals （Secondary Synchronization Signal, SSS）, for carrying out descending timing, find wireless frame start position and enter Row data receiver and transmission.72 subcarriers of the PSS and SSS only in subdistrict frequency band central authorities upload defeated（It is actual to take 62 son loads Ripple, its remaining sub-carriers are used as protection interval）.For frame structure Class1, i.e. FDD（Frequency Division Duplex, FDD）The frame structure of system, PSS and SSS are respectively in last and penultimate OFDM symbol of time slot 0 and 10 Upper transmission；For frame structure type 2, i.e. time division duplex（, Time Division Duplex, TDD）The frame structure of system, PSS Transmit in the 3rd OFDM symbol of subframe 1 and 6, wherein subframe 1 is special subframe, including descending pilot frequency time slot （Downlink Pilot Time Slot, DwPTS）, guard time（Guard Period, GP）And uplink pilot time slot （Uplink Pilot Time Slot, UpPTS）, subframe 6 is only at 5 milliseconds（Millisecond, ms）Descending-up switching point TDD uplink/downlink configuration in be special subframe, SSS transmit in last OFDM symbol of time slot 1 and 11, such as Fig. 3 a with Shown in Fig. 3 b, Fig. 3 a are the esource impact schematic diagram of the synchronizing signal of FDD system, and Fig. 3 b are the money of the synchronizing signal of TDD system Source maps schematic diagram.

PBCH is used to carry Master Information Block（Master Information Block, MIB）, it is main to carry：The cell Downlink system bandwidth, physical mixed automatic repeat request indicate channel（Physical HARQ Indication Channel, PHICH）Configuration and System Frame Number（System Frame Number, SFN）.Additionally, the cyclic redundancy check (CRC) of PBCH （Cyclic Redundancy Check, CRC）The different scrambling sequence that information is used indicates the CRS antenna port numbers of base station. The scramble sequence of the CRC that UE passes through blind check PBCH, it is possible to obtain the antenna port number.Physical Downlink Control Channel（Physical Downlink Control Channel, PDCCH）, PHICH, Physical Control Format Indicator Channel（Physical Control Format Indicator Channel, PCIFCH）Deng channel using the CRS antenna ports number transmission.PBCH is with 40ms Cycle is updated, the 2nd time slot of the subframe 0 of each radio frames in continuous 4 radio frames（That is time slot 1）Front four Transmit in individual OFDM symbol, fixed 72 subcarriers for taking carrier frequency band central authorities on frequency domain, as shown in figures 4 a and 4b, its In, Fig. 4 a are the mapping mode under conventional CP, and such as Fig. 4 b are to extend the mapping mode under CP.

In order to further improve resource utilization ratio, the version 11 of lte-a system（Rel-11）It is determined that introducing new carrier wave Type（Additional Carrier Type or New Carrier Type, NCT）, with the strengthening system availability of frequency spectrum, more preferably Support heterogeneous network, reduce power consumption.NCT carrier waves only support the single antenna port that 5ms is the cycle（Antenna port 0）CRS is transmitted, And CRS is not used in downlink data demodulation.NCT carrier waves can not work independently in Rel-11, need to be with a tradition（legacy）Carrier wave Associated working.Whether certain deviation is had in time domain and frequency domain with legacy carrier waves according to receiving terminal, be divided into sync carrier and Asynchronous carrier wave, the latter needs to carry out single Time and Frequency Synchronization process, therefore needs synchronous signal transmission on NCT carrier waves.Consider Downlink data on NCT carrier waves need to be demodulated based on DRS, and on legacy carrier waves synchronizing signal and DRS to there is resource Chong Die, be The down transmission efficiency of NCT carrier waves is improved, need to design new synchronous transmission of signal time-domain position to avoid with CRS and DRS etc. The resource of downlink reference signal is overlapped.Additionally, in Rel-12 and later release, NCT carrier waves are also possible to work independently, because This, it is also desirable to transmit PBCH, PBCH transmission equally should avoid Chong Die with the resource of the downlink reference signal such as CRS and DRS.

Synchronous transmission of signal resource on NCT carrier waves is different from legacy carrier waves, and UE not can determine that its access carrier is When NCT carrier waves or legacy carrier waves, it is impossible to obtain correct synchronization signal data, and then be unable to properly receive PBCH, it is impossible to Realize normal cell search process.

The content of the invention

The embodiment of the present invention provides a kind of recognition methodss of carrier type and equipment, for solving terminal how discriminatory carrier The problem of type.

A kind of recognition methodss of carrier type, the method includes：

Terminal detects synchronizing signal on current carrier, and according to the synchronization signal detection Physical Broadcast Channel for detecting PBCH；

The terminal is according between the resource at the synchronizing signal place for detecting and the resource at the PBCH places for detecting Position relationship, or according to the PBCH for detecting, determine the carrier type of current carrier.

A kind of recognition methodss of carrier type, the method includes：

Terminal detects synchronizing signal on current carrier, and according to the synchronization signal detection cell own reference letter for detecting Number CRS；

Close the position of the resource that the terminal is located according to the resource that the synchronizing signal for detecting is located with the CRS for detecting System, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier.

A kind of recognition methodss of carrier type, the method includes：

Terminal detects synchronizing signal on current carrier；

The frequency domain resource that the terminal is used according to the synchronous transmission of signal for detecting, determines the carrier-class of current carrier Type.

A kind of terminal, the terminal includes：

Detector unit, for detecting synchronizing signal on current carrier, and according to the synchronization signal detection physics for detecting Broadcast channel PBCH；

Recognition unit, the resource being located for the resource being located according to the synchronizing signal that detects and the PBCH for detecting it Between position relationship, or according to the PBCH for detecting, determine the carrier type of current carrier.

A kind of terminal, the terminal includes：

Detector unit, for detecting synchronizing signal on current carrier, and according to the synchronization signal detection cell for detecting Own reference signal CRS；

Recognition unit, the resource that the resource for being located according to the synchronizing signal for detecting is located with the CRS for detecting Position relationship, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier.

A kind of terminal, the terminal includes：

Detector unit, for detecting synchronizing signal on current carrier；

Recognition unit, for the frequency domain resource used according to the synchronous transmission of signal for detecting, determines current carrier Carrier type.

In this programme, terminal can according to resource that the synchronizing signal that detects on current carrier is located with detect Position relationship between the resource that PBCH is located, or according to the PBCH detected on current carrier, or according to current The position relationship of the resource that the resource that the synchronizing signal that detects on carrier wave is located is located with the CRS for detecting, or according to The transmission subframe of the CRS detected on current carrier, or made according to the synchronous transmission of signal detected on current carrier Frequency domain resource, determines the carrier type of current carrier, so as to solve the problems, such as terminal how discriminatory carrier type.

Description of the drawings

Fig. 1 is carrier aggregation schematic diagram of the prior art；

Fig. 2 a are esource impact schematic diagrams of the CRS of the prior art under conventional CP；

Fig. 2 b are esource impact schematic diagrams of the CRS of the prior art under extension CP；

Fig. 3 a are the esource impact schematic diagram of synchronizing signal in FDD system of the prior art；

Fig. 3 b are the esource impact schematic diagram of synchronizing signal in TDD system of the prior art；

Fig. 4 a are esource impact schematic diagrams of the PBCH of the prior art under conventional CP；

Fig. 4 b are esource impact schematic diagrams of the PBCH of the prior art under extension CP；

Fig. 5 is method flow schematic diagram provided in an embodiment of the present invention；

Fig. 6 is other method schematic flow sheet provided in an embodiment of the present invention；

Fig. 7 is another method flow schematic diagram provided in an embodiment of the present invention；

Fig. 8 is device structure schematic diagram provided in an embodiment of the present invention.

Specific embodiment

In order to solve the problems, such as terminal how discriminatory carrier type, the embodiment of the present invention provides the knowledge of the first carrier type Other method, in this method, resource and the PBCH for detecting that terminal is located according to the synchronizing signal detected on current carrier Position relationship between the resource at place, or according to the PBCH for detecting, determine the carrier type of current carrier.

Referring to Fig. 5, the recognition methodss of the first carrier type provided in an embodiment of the present invention, comprise the following steps：

Step 50：Terminal detects synchronizing signal on current carrier, and according to synchronization signal detection PBCH for detecting；

Step 51：Terminal is according between the resource at the synchronizing signal place for detecting and the resource at the PBCH places for detecting Position relationship, or according to the PBCH for detecting, determine the carrier type of current carrier.

Specifically, in step 51, terminal is located according to the synchronizing signal for the detecting resource being located and the PBCH for detecting Resource between position relationship, determine the carrier type of current carrier, implementing can adopt one of with the following method：

Method one, the orthogonal frequency division multiplexing that terminal is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain With（OFDM）Symbol numbers, determine the carrier type of current carrier；

Here, synchronizing signal includes PSS and/or SSS.

For frame structure Class1, terminal is spaced according to the synchronizing signal for detecting and the PBCH for detecting in time domain OFDM symbol number, determines the carrier type of current carrier, and implementing can be as follows：

If k-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced k-1 OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If k-th OFDM in the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting Symbol, is spaced k OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If k-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced k-1 OFDM symbol in time domain, and the SSS for the detecting OFDM symbol being located and the PBCH for detecting are located OFDM symbol in k-th OFDM symbol, k OFDM symbol is spaced in time domain, it is determined that current carrier is the first kind Carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the number of the OFDM symbol that PBCH transmission is located on first kind carrier wave.Preferably, K=4.

For frame structure type 2, terminal is spaced according to the synchronizing signal for detecting and the PBCH for detecting in time domain OFDM symbol number, determines the carrier type of current carrier, and implementing can be as follows：

If k-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced K-k+A OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier For Equations of The Second Kind carrier wave；Or,

If k-th OFDM in the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting Symbol, is spaced K-k+B OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines working as front bearing Ripple is Equations of The Second Kind carrier wave；Or,

If k-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced K-k+A OFDM symbol, and OFDM symbol and the PBCH institutes for detecting at the SSS places for detecting in time domain OFDM symbol in k-th OFDM symbol, K-k+B OFDM symbol is spaced in time domain, it is determined that current carrier is First kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the number of the OFDM symbol that PBCH transmission is located on first kind carrier wave；Before regular circulation Sew（CP）Under, A=5, B=2, under extension CP, A=4, B=1.Preferably, K=4.Terminal determines CP according to the synchronizing signal for detecting Type（Specific behavior can be that CP types are determined by the method for blind Detecting）.

Method two, according to the synchronizing signal for detecting and the PBCH for detecting, transmission sequence in time domain or when being located The position relationship of gap or the position relationship of place subframe, determine the carrier type of current carrier；

Here, above-mentioned synchronizing signal includes PSS and/or SSS.

For frame structure Class1, transmission of the terminal according to the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship or the position relationship of place subframe of order or place time slot, determines the carrier type of current carrier, implements Can be as follows：

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet first condition, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet second condition, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the SSS for detecting is located The position relationship of transmission sequence or place time slot of the OFDM symbol that OFDM symbol is located with the PBCH that detects in time domain or The position relationship of place subframe meets second condition, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Above-mentioned first condition includes：The PBCH institutes that the OFDM symbol that the PSS for detecting is located is detected in advance in time domain OFDM symbol；Or,

The OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe or same The different time-gap of subframe；

Or, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe And the OFDM symbol OFDM symbol that advanced PBCH is located in time domain that PSS is located；

Or, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe And the OFDM symbols that are located of PSS are in the OFDM symbol that first time slot of the subframe, PBCH are located during second in the subframe Gap.

Above-mentioned second condition includes：The PBCH institutes that the OFDM symbol that the SSS for detecting is located is detected in advance in time domain OFDM symbol；Or,

The OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe or same The different time-gap of subframe；Or,

The OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same subframe and SSS The OFDM symbol at the place OFDM symbol that advanced PBCH is located in time domain；Or,

The OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same subframe and SSS Second time slot of the OFDM symbol that the OFDM symbol at place is located in first time slot of the subframe, PBCH in the subframe.

For example, to above-mentioned first condition and/or second condition in each seed conditional combination situation provide following composition theory It is bright, however not excluded that other combined situations：

If the OFDM symbol that the PBCH that the OFDM symbol that the PSS for detecting is located is detected in advance in time domain is located, or Person, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe or same subframe Different time-gap, or, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in same son The OFDM symbol OFDM symbol that advanced PBCH is located in time domain that frame and PSS are located, or, what the PSS for detecting was located The OFDM symbol that OFDM symbol is located with the PBCH that detects is in same subframe and the OFDM symbols that are located of PSS are the of the subframe Second time slot of the OFDM symbol that one time slot, PBCH are located in the subframe, it is determined that current carrier is first kind carrier wave；It is no Then, determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the PBCH that the OFDM symbol that the SSS for detecting is located is detected in advance in time domain is located, or Person, the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe or same subframe Different time-gap, or, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same son The OFDM symbol OFDM symbol that advanced PBCH is located in time domain that frame and SSS are located, or, what the SSS for detecting was located The OFDM symbol that OFDM symbol is located with the PBCH that detects is in same subframe and the OFDM symbols that are located of SSS are the of the subframe Second time slot of the OFDM symbol that one time slot, PBCH are located in the subframe, it is determined that current carrier is first kind carrier wave；It is no Then, determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the PBCH that the OFDM symbol that the PSS for detecting is located is detected in advance in time domain is located, and The OFDM symbol that the PBCH that the OFDM symbol that the SSS for detecting is located is detected in advance in time domain is located, it is determined that work as front bearing Ripple is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe or same The different time-gap of one subframe, and the OFDM symbol at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting is same The different time-gap of one subframe or same subframe, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting and SSS is located all is located with the PBCH for detecting is same Subframe, and the OFDM symbol that the PBCH that detects in advance of the OFDM symbol that is located of PSS and SSS is located, it is determined that current carrier For first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting and SSS is located all is located with the PBCH for detecting is same Subframe, and first time slot, the OFDM symbol at PBCH place of the OFDM symbol at PSS and SSS places all in the subframe is in the son Second time slot of frame, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

For frame structure type 2, transmission of the terminal according to the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship or the position relationship of place subframe of order or place time slot, determines the carrier type of current carrier, implements Can be as follows：

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet third condition, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet fourth condition, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the SSS for detecting is located The position relationship of transmission sequence or place time slot of the OFDM symbol that OFDM symbol is located with the PBCH that detects in time domain or The position relationship of place subframe meets fourth condition, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Above-mentioned third condition includes：The OFDM symbol that the PSS for detecting the is located PBCH institutes that backwardness is detected in time domain OFDM symbol；

Or, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in adjacent sub-frame Or the different time-gap of adjacent sub-frame；Or,

The OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in adjacent sub-frame and PSS The OFDM symbol at place falls behind the OFDM symbol that PBCH is located in time domain；Or,

The OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in adjacent sub-frame and PSS The OFDM symbol at place is located at that the OFDM symbol that first time slot of latter subframe, PBCH be located is located at previous subframe Two time slots；

Above-mentioned fourth condition includes：The OFDM symbol that the SSS for detecting the is located PBCH institutes that backwardness is detected in time domain OFDM symbol；Or,

The OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe or same The identical time slot of subframe；Or,

The OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same subframe and SSS The OFDM symbol at place falls behind the OFDM symbol that PBCH is located in time domain；Or,

The OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in the identical of same subframe The OFDM symbol that time slot and SSS are located falls behind the OFDM symbol that PBCH is located in time domain；Or,

The OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is the second of same subframe The OFDM symbol that individual time slot and SSS are located falls behind the OFDM symbol that PBCH is located in time domain.

For example, for above-mentioned third condition and/or fourth condition in each seed conditional combination situation provide following combination Explanation, however not excluded that other combined situations：

If the OFDM symbol that the OFDM symbol that the PSS for detecting the is located PBCH that backwardness is detected in time domain is located, or Person, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in adjacent sub-frame or adjacent sub-frame Different time-gap, or, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in adjacent son The OFDM symbol that frame and PSS are located falls behind the OFDM symbol that PBCH is located in time domain, or, what the PSS for detecting was located The OFDM symbol that OFDM symbol is located with the PBCH that detects is in adjacent sub-frame and the OFDM symbols that are located of PSS are located at latter height The OFDM symbol that first time slot of frame, PBCH are located is located at second time slot of previous subframe, it is determined that current carrier is First kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the SSS for detecting the is located PBCH that backwardness is detected in time domain is located, or Person, the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe or same subframe Identical time slot, or, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same son The OFDM symbol that frame and SSS are located falls behind the OFDM symbol that PBCH is located in time domain, or, what the SSS for detecting was located The OFDM symbol that OFDM symbol is located with the PBCH for detecting exists in the OFDM symbol that the identical time slot and SSS of same subframe are located Fall behind the OFDM symbol that PBCH is located in time domain, or, the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting OFDM symbol same subframe second time slot and SSS be located OFDM symbol in time domain fall behind PBCH be located OFDM Symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting the is located PBCH that backwardness is detected in time domain is located, and The OFDM symbol that the OFDM symbol that the SSS for detecting the is located PBCH that backwardness is detected in time domain is located, it is determined that work as front bearing Ripple is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in adjacent sub-frame or phase The different time-gap of adjacent subframe, and the OFDM symbol at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting is same The identical time slot of one subframe or same subframe, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in adjacent sub-frame, inspection The OFDM symbol that the OFDM symbol that the SSS for measuring is located is located with the PBCH for detecting is located in same subframe, and PSS and SSS The OFDM symbol OFDM symbol that all PBCH that detects of backwardness is located in time domain, it is determined that current carrier is that the first kind is carried Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting in adjacent sub-frame and The OFDM symbol that PSS is located is located at first time slot of latter subframe, the OFDM symbol at PBCH places and is located at previous subframe Second time slot, and, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same son The OFDM symbol that the identical time slot of frame or same subframe and SSS are located falls behind the OFDM symbol that PBCH is located in time domain, then really Current carrier is determined for first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting in adjacent sub-frame and The OFDM symbol that PSS is located is located at first time slot of latter subframe, the OFDM symbol at PBCH places and is located at previous subframe Second time slot, and, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is in same son The OFDM symbol that second time slot of frame and SSS are located falls behind the OFDM symbol that PBCH is located in time domain, it is determined that work as front bearing Ripple is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Method three, according to the OFDM symbol number that the synchronizing signal for detecting is spaced with the PBCH for detecting in time domain, And position relationship or the institute of transmission sequence or place time slot of the synchronizing signal for detecting with the PBCH for detecting in time domain In the position relationship of subframe, the carrier type of current carrier is determined.

Here, above-mentioned synchronizing signal includes master sync signal PSS and/or auxiliary synchronous signals SSS.

For frame structure Class1, terminal is spaced according to the synchronizing signal for detecting and the PBCH for detecting in time domain OFDM symbol number, and transmission sequence or place time slot of the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship of position relationship or place subframe, determines the carrier type of current carrier, and implementing can be as follows：

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced k-1 OFDM symbol in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet second condition, and the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced k OFDM symbol in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced k-1 OFDM symbol in time domain Number, and transmission sequence of the OFDM symbol at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet second condition, and the OFDM that the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced k OFDM symbol in time domain, Then determine that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave.Preferably, K=4.

Above-mentioned various combined situations, the PSS/SSS being specifically as follows in method one distinguishes corresponding different situations and method The various subconditional combined situation of first condition and/or second condition is further combined in two, will not be described here, however not excluded that Other combined situations.

For frame structure type 2, terminal is spaced according to the synchronizing signal for detecting and the PBCH for detecting in time domain OFDM symbol number, and transmission sequence or place time slot of the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship of position relationship or place subframe, determines the carrier type of current carrier, and implementing can be as follows：

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced K-k+A OFDM in time domain Symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet fourth condition, and the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced K-k+B in time domain OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Order or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced K-k+A OFDM in time domain Symbol, and transmission of the OFDM symbol at the SSS for the detecting OFDM symbols being located and the PBCH places for detecting in time domain is suitable The position relationship of the position relationship or place subframe of sequence or place time slot meets fourth condition, and the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that OFDM symbol is located with the PBCH for detecting, is spaced K-k+B in time domain OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave；Under conventional CP, A=5, B =2, under extension CP, A=4, B=1.Preferably, K=4.Terminal determines the type of CP according to the synchronizing signal for detecting.

Above-mentioned various combined situations, the PSS/SSS being specifically as follows in method one distinguishes corresponding different situations and method The various subconditional combined situation of third condition and fourth condition is further combined in two, will not be described here, however not excluded that its His combined situation.

Specifically, in step 51, terminal determines the carrier type of current carrier according to the PBCH for detecting, and implements Can be with using one of following three kinds of modes：

Mode one：The type of the demodulated signal that the PBCH according to detecting is used, determines the carrier type of current carrier；

Specifically, if the demodulated signal that the PBCH for detecting is used is cell own reference signal（CRS）, it is determined that it is current Carrier wave is first kind carrier wave；If the demodulated signal that the PBCH for detecting is used is downlink user DRS (Dedicated Reference Signal)（DRS）, then really Current carrier is determined for Equations of The Second Kind carrier wave.

Mode two：The time domain being located according to the PBCH for detecting and/or frequency domain resource, determine the carrier-class of current carrier Type；

Specifically, if meeting following condition five and/or condition six, it is determined that current carrier is first kind carrier wave；Otherwise, really Current carrier is determined for Equations of The Second Kind carrier wave；Wherein：

Condition five includes：The time-domain position that the PBCH that detects is located is front 4 OFDM symbols of a time slot, or one First subframe in radio frames, or second time slot of a subframe, or front 4 OFDM of second time slot of a subframe Front 4 OFDM symbols of second time slot of first subframe in symbol, or a radio frames；

For example, PBCH is transmitted in front 4 OFDM symbols of the 2nd time slot of subframe 0 on legacy carrier waves, it is assumed that NCT OFDM symbol position on carrier wave in the transmission subframe and/or time slot position and/or a time slot of PBCH is with legacy carrier waves not Together, for example, PBCH is transmitted in front 4 OFDM symbols of the 2nd time slot of subframe 1 on NCT carrier waves, or at the 1st of subframe 0 Front 4 OFDM symbols transmission of time slot, or the 2nd to the 5th OFDM symbol transmission of the 2nd time slot in subframe 0, then can root The concrete time-domain position of the OFDM being located according to the PBCH transmission for detecting meets the definition of above-mentioned which kind of carrier wave to determine the carrier wave For legacy carrier waves or NCT carrier waves.

Condition six includes：The time-frequency domain resources that the PBCH for detecting is located are 6 physics money in current carrier frequency domain central authorities Source block（PRB）In the OFDM symbol that middle PBCH transmission is located in addition to CRS is in corresponding RE on antenna port 0,1,2,3 RE。

For example, PBCH is transmitted in front 4 OFDM symbols of the 2nd time slot of subframe 0 on legacy carrier waves, and PBCH Esource impact is all reserved to the corresponding RE of CRS on antenna port 0 ~ 3, i.e., the CRS of 4 antenna ports in PBCH resources PBCH is not transmitted on corresponding RE；And determine the CRS transmission only existed on antenna port 0 on NCT carrier waves at present, and be with 5ms Periodic transfer, if then CRS transmission subframes transmit subframe comprising PBCH, the PBCH on NCT carrier waves can only on antenna port 0 The corresponding RE of CRS reserved, i.e. do not transmit PBCH on the corresponding RE of CRS on the antenna port 0 only in PBCH resources, If CRS transmission subframe not comprising PBCH transmit subframe, the PBCH on NCT carrier waves can not RE corresponding to any CRS carry out It is reserved, i.e., all transmit PBCH on all RE in PBCH resources；In such cases, legacy carrier waves and PBCH on NCT carrier waves The time-frequency domain resources at place（That is resource mapping method）Difference, then can be full according to the concrete resource mapping method of the PBCH for detecting The definition of above-mentioned which kind of carrier wave of foot is determining the carrier wave for legacy carrier waves or NCT carrier waves.

Mode three：The number of coded bits that PBCH according to detecting is carried, determines the carrier type of current carrier.

Specifically, if the number of coded bits that the PBCH for detecting is carried is 1920 bits under conventional CP, in extension CP It is down 1728 bits, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

In this method, first kind carrier wave can be tradition（legacy）Carrier wave, Equations of The Second Kind carrier wave can be new wave-carring type （NCT）Carrier wave.

For the purposes of solving the problems, such as terminal how discriminatory carrier type, the embodiment of the present invention provides second carrier type Recognition methodss, in this method, resource that terminal is located according to the synchronizing signal that detects on current carrier with detect The position relationship of the resource that CRS is located, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier.

Referring to Fig. 6, the recognition methodss of second carrier type provided in an embodiment of the present invention, comprise the following steps：

Step 60：Terminal detects synchronizing signal on current carrier, and according to synchronization signal detection CRS for detecting；

Step 61:The position of the resource that terminal is located according to the resource that the synchronizing signal for detecting is located with the CRS for detecting Relation is put, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier.

Specifically, in step 61, terminal is located according to the synchronizing signal for the detecting resource being located and the CRS for detecting The position relationship of resource, determines the carrier type of current carrier, and implementing can be using one of following four kinds of scheme：

Scheme one：According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, The OFDM symbol number being spaced in time domain, determines the carrier type of current carrier；

Wherein, synchronizing signal includes PSS and/or SSS.

The OFDM symbol that terminal is located according to the OFDM symbol that the synchronizing signal for detecting is located with the CRS for detecting, The OFDM symbol number being spaced in time domain, determines the carrier type of current carrier, and implementing to realize as follows：

If the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting, the minimum interval in time domain For 0 OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting, the minimum interval in time domain 0 OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting, the minimum interval in time domain For 0 OFDM symbol, and, the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting, in time domain Minimum interval is 0 OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind load Ripple.

Scheme two：According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, The position relationship or the position relationship of place subframe of transmission sequence or place time slot in time domain, determines the carrier wave of current carrier Type；

If there is the advanced OFDM symbol being located with the PSS that backwardness is detected in the OFDM that the CRS for detecting is located simultaneously Symbol, it is determined that current carrier be first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If there is the advanced OFDM symbol being located with the SSS that backwardness is detected in the OFDM that the CRS for detecting is located simultaneously Symbol, it is determined that current carrier be first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If there is the advanced OFDM symbol being located with the PSS that backwardness is detected in the OFDM that the CRS for detecting is located simultaneously Symbol, and there is the OFDM symbol that the SSS that advanced and backwardness detects is located in the OFDM that is located of the CRS that detects simultaneously Symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

This is because CRS is transmitted in each subframe on legacy carrier waves, to I haven't seen you for ages in synchronizing signal front and back OFDM symbol on exist transmission, and on NCT carrier waves CRS with 5ms as periodic transfer, if on prespecified NCT carrier waves CRS with Synchronizing signal, then can be according to whether all detect CRS to sentence not in same subframe in the OFDM symbol before and after synchronizing signal Disconnected carrier type.

Scheme three：According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, The OFDM symbol number being spaced in time domain, and, OFDM symbol and the CRS institutes for detecting that the synchronizing signal for detecting is located OFDM symbol, the position relationship or the position relationship of place subframe of transmission sequence or place time slot in time domain, it is determined that The carrier type of current carrier；

Wherein, synchronizing signal includes PSS and/or SSS.

The OFDM symbol that terminal is located according to the OFDM symbol that the synchronizing signal for detecting is located with the CRS for detecting, The OFDM symbol number being spaced in time domain, and, the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting OFDM symbol, the position relationship or the position relationship of place subframe of transmission sequence or place time slot in time domain, it is determined that work as The carrier type of front carrier wave, implementing to realize as follows：

If the OFDM symbol that the PSS for detecting is located is with the closest PSS in the OFDM at the CRS places for detecting and super The OFDM symbol of the front PSS, is spaced 1 OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, Determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the PSS for detecting is located is with the closest PSS in the OFDM at the CRS places for detecting and falls Afterwards the OFDM symbol of the PSS, is spaced 0 OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, Determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the SSS for detecting is located is with the closest SSS in the OFDM at the CRS places for detecting and super The OFDM symbol of the front SSS, is spaced 0 OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, Determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the SSS for detecting is located is with the closest SSS in the OFDM at the CRS places for detecting and falls Afterwards the OFDM symbol of the SSS, is spaced 1 OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, Determine that current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the PSS for detecting is located is with the closest PSS in the OFDM at the CRS places for detecting and super The OFDM symbol of the front PSS, is spaced 1 OFDM symbol in time domain, and, OFDM symbol and inspection that the PSS for detecting is located The OFDM symbol of the closest PSS and the backwardness PSS in the OFDM that the CRS for measuring is located, is spaced 0 OFDM in time domain Symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the SSS for detecting is located is with the closest SSS in the OFDM at the CRS places for detecting and super The OFDM symbol of the front SSS, is spaced 0 OFDM symbol in time domain, and, OFDM symbol and inspection that the SSS for detecting is located The OFDM symbol of the closest SSS and the backwardness SSS in the OFDM that the CRS for measuring is located, is spaced 1 OFDM in time domain Symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM symbol that the PSS for detecting is located is with the closest PSS in the OFDM at the CRS places for detecting and super The OFDM symbol of the front PSS, is spaced 1 OFDM symbol in time domain, and, OFDM symbol and inspection that the PSS for detecting is located The OFDM symbol of the closest PSS and the backwardness PSS in the OFDM that the CRS for measuring is located, is spaced 0 OFDM in time domain Symbol, and, the OFDM symbol that the SSS for detecting is located is with the closest SSS in the OFDM at the CRS places for detecting and advanced The OFDM symbol of the SSS, is spaced 0 OFDM symbol in time domain, and, OFDM symbol and detection that the SSS for detecting is located To the OFDM that are located of CRS in the closest SSS and the backwardness SSS OFDM symbol, 1 OFDM symbol is spaced in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Scheme four：It is whether identical with the subframe that the CRS for detecting is located according to the subframe that the synchronizing signal for detecting is located, Determine the carrier type of current carrier；

Specifically, if the subframe at the synchronizing signal place for detecting is identical with the subframe that the CRS for detecting is located, it is determined that Current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.This is because, CRS exists on legacy carrier waves In each subframe exist transmission, on NCT carrier waves CRS only with 5ms as periodic transfer, if on prespecified NCT carrier waves CRS is not transmitted with synchronizing signal in same subframe, then can pass through the synchronous letter whether UE is detected simultaneously by same subframe Number with CRS judging carrier type.

In step 61, terminal determines the carrier type of current carrier according to the transmission subframe of the CRS for detecting, concrete real Now can be as follows：

If detecting CRS in continuously at least 2 subframes, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave.This is because, on legacy carrier waves there is in each subframe transmission in CRS, in NCT carrier waves Upper CRS is only with 5ms as periodic transfer.

In this method, first kind carrier wave can be legacy carrier waves, and Equations of The Second Kind carrier wave can be NCT carrier waves.

For the purposes of solving the problems, such as terminal how discriminatory carrier type, the embodiment of the present invention provides the third carrier type Recognition methodss, in this method, the frequency domain resource that terminal is used according to the synchronous transmission of signal detected on current carrier, Determine the carrier type of current carrier.

Referring to Fig. 7, the recognition methodss of the third carrier type provided in an embodiment of the present invention, comprise the following steps：

Step 70：Terminal detects synchronizing signal on current carrier；

Step 71：The frequency domain resource that terminal is used according to the synchronous transmission of signal for detecting, determines the load of current carrier Ripple type.

Specifically, implementing for step 71 can be as follows：

If the frequency domain resource that the synchronous transmission of signal for detecting is used is continuous subcarrier, it is determined that current carrier is First kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, synchronizing signal includes PSS and/or SSS.

For example, the frequency domain resource that synchronous transmission of signal is located on legacy carrier waves is the continuous sub- load in carrier frequency band central authorities Ripple（Such as continuous 72 or 62 subcarriers in frequency band central authorities）, the frequency domain resource that synchronous transmission of signal is located on NCT carrier waves is to carry Discrete subcarrier in wave frequency band central authorities（The corresponding OFDM symbol of the downlink reference signals such as such as synchronizing signal and DRS/CRS Identical, on the symbol, synchronizing signal is only mapped on the RE in addition to the corresponding RE of the downlink reference signals such as DRS/CRS）.

In this method, first kind carrier wave can be legacy carrier waves, and the Equations of The Second Kind carrier wave can be NCT carrier waves.

Referring to Fig. 8, the embodiment of the present invention provides a kind of terminal, and the terminal includes：

Detector unit 80, for detecting synchronizing signal on current carrier, and according to the synchronization signal detection thing for detecting Reason broadcast channel PBCH；

Recognition unit 81, the resource that the resource for being located according to the synchronizing signal for detecting is located with the PBCH for detecting Between position relationship, or according to the PBCH for detecting, determine the carrier type of current carrier.

Further, the recognition unit 81 is used for：The money being located according to the synchronizing signal for detecting as follows Position relationship between the resource that source and the PBCH for detecting are located, determines the carrier type of current carrier：

According to the orthogonal frequency division multiplex OFDM symbol that the synchronizing signal for detecting is spaced with the PBCH for detecting in time domain Number, determines the carrier type of current carrier；Or,

According to the synchronizing signal for detecting and the PBCH for detecting, the position of transmission sequence or place time slot in time domain The position relationship of relation or place subframe, determines the carrier type of current carrier；Or,

According to the OFDM symbol number that the synchronizing signal for detecting is spaced with the PBCH for detecting in time domain, and detection To transmission sequence or place time slot of the synchronizing signal with the PBCH for detecting in time domain position relationship or place subframe Position relationship, determines the carrier type of current carrier.

Further, the synchronizing signal includes master sync signal PSS and/or auxiliary synchronous signals SSS.

Further, the recognition unit 81 is used for：For frame structure Class1, as follows according to detecting The OFDM symbol number that synchronizing signal is spaced with the PBCH for detecting in time domain, determines the carrier type of current carrier：

K-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced k-1 OFDM symbol in time domain, and the SSS for the detecting OFDM symbol being located and the PBCH for detecting are located OFDM symbol in k-th OFDM symbol, k OFDM symbol is spaced in time domain, it is determined that current carrier is the first kind Carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the number of the OFDM symbol that PBCH transmission is located on first kind carrier wave.

Further, the recognition unit 81 is used for：For frame structure type 2, as follows according to detecting The OFDM symbol number that synchronizing signal is spaced with the PBCH for detecting in time domain, determines the carrier type of current carrier：

If k-th OFDM in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Symbol, is spaced K-k+A OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；Otherwise determine current carrier For Equations of The Second Kind carrier wave；Or,

Wherein, 1≤k≤K, K are the number of the OFDM symbol that PBCH transmission is located on first kind carrier wave；Before regular circulation Under sewing CP, A=5, B=2, under extension CP, A=4, B=1.

Further, the recognition unit 81 is used for：For frame structure Class1, as follows according to detecting The position relationship of transmission sequence or place time slot of the synchronizing signal with the PBCH for detecting in time domain or the position of place subframe Relation, determines the carrier type of current carrier：

Further, the recognition unit 81 is used for：For frame structure type 2, as follows according to detecting The position relationship of transmission sequence or place time slot of the synchronizing signal with the PBCH for detecting in time domain or the position of place subframe Relation, determines the carrier type of current carrier：

Further, the recognition unit 81 is used for：For frame structure Class1, as follows according to detecting The OFDM symbol number that synchronizing signal is spaced with the PBCH for detecting in time domain, and the synchronizing signal for detecting with detect Transmission sequences or place time slot of the PBCH in time domain position relationship or the position relationship of place subframe, determine current carrier Carrier type：

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave.

Further, the recognition unit 81 is used for：For frame structure type 2, as follows according to detecting The OFDM symbol number that synchronizing signal is spaced with the PBCH for detecting in time domain, and the synchronizing signal for detecting with detect Transmission sequences or place time slot of the PBCH in time domain position relationship or the position relationship of place subframe, determine current carrier Carrier type：

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave；Under conventional CP, A=5, B =2, under extension CP, A=4, B=1.

Further, the first condition includes：The OFDM symbol that the PSS for detecting is located is detected in advance in time domain The OFDM symbols that are located of PBCH, or, the OFDM symbols that OFDM symbol that the PSS that detects is located and the PBCH for detecting are located Number in same subframe or the different time-gap of same subframe, or, OFDM symbol and the PBCH for detecting that the PSS for detecting is located The OFDM symbol at place in same subframe and the OFDM symbols at OFDM symbol advanced PBCH place in time domain that are located of PSS, or Person, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in same subframe and PSS is located Second time slot of the OFDM symbol that OFDM symbol is located in first time slot of the subframe, PBCH in the subframe；

The second condition includes：The PBCH institutes that the OFDM symbol that the SSS for detecting is located is detected in advance in time domain OFDM symbol, or, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is same The different time-gap of subframe or same subframe, or, the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting OFDM symbol in same subframe and the OFDM symbol OFDM symbols that advanced PBCH is located in time domain that are located of SSS, or, detect To the OFDM symbol that is located of the OFDM symbols that are located of SSS and the PBCH that detects in same subframe and the OFDM symbols that are located of SSS Second time slot of number OFDM symbol being located in first time slot of the subframe, PBCH in the subframe.

Further, the third condition includes：The OFDM symbol that the PSS for detecting is located backwardness in time domain is detected The OFDM symbols that are located of PBCH, or, the OFDM symbols that OFDM symbol that the PSS that detects is located and the PBCH for detecting are located Number in adjacent sub-frame or the different time-gap of adjacent sub-frame, or, OFDM symbol and the PBCH for detecting that the PSS for detecting is located The OFDM symbol at place in adjacent sub-frame and PSS be located OFDM symbol in time domain fall behind PBCH be located OFDM symbol, or Person, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is in adjacent sub-frame and PSS is located When OFDM symbol is located at the OFDM symbol that first time slot of latter subframe, PBCH be located and is located at second of previous subframe Gap；

The fourth condition includes：The OFDM symbol that the SSS for detecting the is located PBCH institutes that backwardness is detected in time domain OFDM symbol, or, the OFDM symbol that the OFDM symbol that the SSS that detects is located is located with the PBCH for detecting is same The identical time slot of subframe or same subframe, or, the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting OFDM symbol in same subframe and SSS be located OFDM symbol in time domain fall behind PBCH be located OFDM symbol, or, detection To identical time slot and SSS institute of the OFDM symbol that is located of the OFDM symbols that are located of SSS and the PBCH that detects in same subframe OFDM symbol fall behind the OFDM symbol that PBCH is located in time domain, or, the OFDM symbol that the SSS that detects is located and inspection The OFDM symbol that the PBCH for measuring is located falls behind in the OFDM symbol that second time slot and SSS of same subframe are located in time domain The OFDM symbol that PBCH is located.

Further, the recognition unit 81 is used for：As follows according to the PBCH for detecting, current carrier is determined Carrier type：

The type of the demodulated signal that the PBCH according to detecting is used, determines the carrier type of current carrier；Or,

The time domain being located according to the PBCH for detecting and/or frequency domain resource, determine the carrier type of current carrier；Or,

The number of coded bits that PBCH according to detecting is carried, determines the carrier type of current carrier.

Further, the recognition unit 81 is used for：The demodulation for being used according to the PBCH for detecting as follows The type of signal, determines the carrier type of current carrier：

If the demodulated signal that the PBCH for detecting is used is cell own reference signal CRS, it is determined that current carrier is the One class carrier wave；If the demodulated signal that the PBCH for detecting is used is downlink user DRS (Dedicated Reference Signal) DRS, it is determined that current carrier For Equations of The Second Kind carrier wave.

Further, the recognition unit 81 is used for：The time domain that is located according to the PBCH that detects as follows and/ Or frequency domain resource, determine the carrier type of current carrier：

If the time-domain position that the PBCH for detecting is located is front 4 OFDM symbols of a time slot, or in a radio frames First subframe, or second time slot of a subframe, or front 4 OFDM symbols of second time slot of a subframe, or Front 4 OFDM symbols of second time slot of first subframe in one radio frames, it is determined that current carrier is first kind load Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；And/or,

If the time-frequency domain resources that the PBCH for detecting is located are in 6 Physical Resource Block PRB in current carrier frequency domain central authorities RE in the OFDM symbol that PBCH transmission is located in addition to CRS is in corresponding RE on antenna port 0,1,2,3, it is determined that current Carrier wave is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Further, the recognition unit 81 is used for：The coding for being carried according to the PBCH for detecting as follows Bit number, determines the carrier type of current carrier：

It is 1728 under extension CP if the number of coded bits that the PBCH for detecting is carried is 1920 bits under conventional CP Bit, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Further, the first kind carrier wave is tradition legacy carrier waves, and the Equations of The Second Kind carrier wave is new wave-carring type NCT Carrier wave.

Referring also to Fig. 8, the embodiment of the present invention provides another kind of terminal, and the terminal includes：

Detector unit 80 for detecting synchronizing signal and little according to the synchronization signal detection for detecting on current carrier Area own reference signal CRS；

Recognition unit 81, the resource that the resource for being located according to the synchronizing signal for detecting is located with the CRS for detecting Position relationship, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier.

Further, the recognition unit 81 is used for：The money being located according to the synchronizing signal for detecting as follows The position relationship of the resource that source is located with the CRS for detecting, determines the carrier type of current carrier：

According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, in time domain The OFDM symbol number at upper interval, determines the carrier type of current carrier；Or,

According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, in time domain On transmission sequence or place time slot position relationship or the position relationship of place subframe, determine the carrier type of current carrier； Or,

According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, in time domain The OFDM symbol number at upper interval, and, the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting OFDM symbol, the position relationship or the position relationship of place subframe of transmission sequence or place time slot in time domain, it is determined that currently The carrier type of carrier wave；Or,

It is whether identical with the subframe that the CRS for detecting is located according to the subframe that the synchronizing signal for detecting is located, it is determined that working as The carrier type of front carrier wave；

Wherein, the synchronizing signal includes master sync signal PSS and/or auxiliary synchronous signals SSS.

Further, the recognition unit 81 is used for：It is located according to the synchronizing signal for detecting as follows The OFDM symbol that OFDM symbol is located with the CRS for detecting, the OFDM symbol number being spaced in time domain, determines current carrier Carrier type：

Further, the recognition unit 81 is used for：It is located according to the synchronizing signal for detecting as follows The OFDM symbol that OFDM symbol is located with the CRS for detecting, the OFDM symbol number being spaced in time domain, and, detect The OFDM symbol that the OFDM symbol that synchronizing signal is located is located with the CRS that detects, transmission sequence in time domain or when being located The position relationship of gap or the position relationship of place subframe, determine the carrier type of current carrier：

Further, the recognition unit 81 is used for：The son being located according to the synchronizing signal for detecting as follows Whether the subframe that frame is located with the CRS for detecting is identical, determines the carrier type of current carrier：

If the subframe that the subframe that the synchronizing signal for detecting is located is located with the CRS for detecting is identical, it is determined that work as front bearing Ripple is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

Further, the recognition unit 81 is used for：As follows according to the transmission subframe of the CRS for detecting, really Determine the carrier type of current carrier：

If detecting CRS in continuously at least 2 subframes, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave.

Referring also to Fig. 8, the embodiment of the present invention provides another terminal, and the terminal includes：

Detector unit 80, for detecting synchronizing signal on current carrier；

Recognition unit 81, for the frequency domain resource used according to the synchronous transmission of signal for detecting, determines current carrier Carrier type.

Further, the recognition unit 81 is used for：

Embodiment one：

In FDD system, by taking conventional CP as an example, 7 OFDM symbols are included in a time slot：

For legacy carrier waves, in last OFDM symbol transmission of the 1st time slot of subframe 0 and 5, SSS is in son for PSS The second-to-last OFDM symbol transmission of first time slot of frame 0 and 5, front 4 OFDMs of the PBCH in second time slot of subframe 0 Symbol transmission, the then OFDM symbol that PSS is located is adjacent with first OFDM symbol that PBCH is located（It is spaced 0 OFDM symbol Number）, first OFDM symbol interval, 1 OFDM symbol that the OFDM symbol that SSS is located is located with PBCH；

For NCT carrier waves, it is assumed that PSS is transmitted in the 3rd OFDM symbol of the 1st time slot of subframe 0 and 5, and SSS is in subframe The 2nd OFDM symbol transmission of 0 and/5 first time slot, the transmission location of PBCH is located with legacy carrier waves, then PSS OFDM symbol is spaced 4 OFDM symbols with first OFDM symbol that PBCH is located, and the OFDM symbol that SSS is located is located with PBCH First OFDM symbol be spaced 5 OFDM symbols；

Now, the first OFDM symbol interval that can be located with PBCH according to the OFDM symbol that the PSS for detecting is located OFDM symbol number, and/or the OFDM symbol number that the OFDM symbol at SSS places is spaced with first OFDM symbol that PBCH is located, Numerical value corresponding with above-mentioned which kind of carrier wave coincide to judge carrier type, and the OFDM symbol that such as PSS is located is located with PBCH First OFDM symbol is spaced 0 OFDM symbol, then be legacy carrier waves, otherwise（It is spaced 4 symbols）, then it is NCT Carrier wave.

Embodiment two：

For legacy carrier waves, in last OFDM symbol transmission of the 1st time slot of subframe 0 and 5, SSS is in son for PSS The second-to-last OFDM symbol transmission of first time slot of frame 0 and 5, front 4 OFDMs of the PBCH in second time slot of subframe 0 Symbol transmission；Then the relative position of PSS/SSS and PBCH, meets：1）The advanced PBCH of OFDM symbol that PSS and SSS is located is located OFDM symbol；2）The OFDM symbol that the OFDM symbol and PBCH that PSS and SSS is located is located is all in subframe 0；3）PSS and SSS institutes The OFDM symbol that is located of OFDM symbol and PBCH is all in subframe 0 and the OFDM symbol that is located of PSS and SSS is advanced in time domain The OFDM symbol that PBCH is located；4）The OFDM symbol that the OFDM symbol and PBCH that PSS and SSS are located is located is all in subframe 0 and PSS Second time slot of the OFDM symbol that the OFDM symbol being located with SSS is located in first time slot of subframe 0, PBCH in subframe 0；

For NCT carrier waves, it is assumed that PSS is transmitted in the 3rd OFDM symbol of the 1st time slot of subframe 1 and 6, and SSS is in subframe The 2nd OFDM symbol transmission of 1 and 6 first time slot, the transmission location of PBCH with legacy carrier waves, then PSS/SSS and The relative position of PBCH, meets：1）The OFDM symbol that PSS and SSS is located falls behind the OFDM symbol that PBCH is located；2）PSS and SSS The OFDM symbol at place and the OFDM symbol that PBCH is located in different subframes, 3）The OFDM symbol that PSS and SSS is located and PBCH institutes OFDM symbol is in different subframes and the OFDM symbol that is located of PSS and SSS falls behind the OFDM symbol that PBCH is located in time domain, 4）The OFDM symbol that PSS and SSS are located and the OFDM symbol that PBCH is located are in different subframes and the OFDM at PSS and SSS places is accorded with Second time slot of number OFDM symbol being located in first time slot of subframe 1, PBCH in subframe 0；

At this point it is possible to the OFDM symbol being located according to the PSS that detects and/or SSS and the PBCH for detecting be located the The transmission sequence or the position relationship of place time slot or the position relationship of place subframe of one OFDM symbol in time domain it is above-mentioned which Plant the corresponding relation of carrier wave to judge carrier type.

Embodiment three：

For legacy carrier waves, in last OFDM symbol transmission of the 1st time slot of subframe 0 and 5, SSS is in son for PSS The second-to-last OFDM symbol transmission of first time slot of frame 0 and 5, front 4 OFDMs of the PBCH in second time slot of subframe 0 Symbol transmission；Then the relative position of PSS/SSS and PBCH, meets：1）Be located first of OFDM symbol and the PBCH that PSS is located OFDM symbol is adjacent（It is spaced 0 OFDM symbol）, between first OFDM symbol that the OFDM symbol and PBCH that SSS is located is located Every 1 OFDM symbol；2）The OFDM symbol that the advanced PBCH of OFDM symbol that PSS and SSS is located is located；3）What PSS and SSS was located The OFDM symbol that OFDM symbol and PBCH are located is all in subframe 0；4）The OFDM symbol that PSS and SSS is located is located with PBCH OFDM symbol is all in subframe 0 and the OFDM symbol at OFDM symbol advanced PBCH places in time domain that is located of PSS and SSS；5）PSS The OFDM symbol that the OFDM symbol being located with SSS and PBCH are located is all in subframe 0 and the OFDM symbol that is located of PSS and SSS is in son Second time slot of the OFDM symbol that first time slot of frame 0, PBCH are located in subframe 0；

For NCT carrier waves, it is assumed that PSS is transmitted in the 3rd OFDM symbol of the 1st time slot of subframe 1 and 6, and SSS is in subframe The 2nd OFDM symbol transmission of 1 and 6 first time slot, the transmission location of PBCH with legacy carrier waves, then PSS/SSS and The relative position of PBCH, meets：1）The OFDM symbol that PSS is located is spaced 8 OFDM with first OFDM symbol that PBCH is located Symbol, the OFDM symbol that SSS is located is spaced 7 OFDM symbols with first OFDM symbol that PBCH is located；2）PSS and SSS institutes OFDM symbol fall behind PBCH be located OFDM symbol；3）The OFDM symbols that the OFDM symbol that PSS and SSS is located is located with PBCH Number in different subframes；4）The OFDM symbol that PSS and SSS are located and the OFDM symbol that PBCH is located are in different subframes and PSS and SSS The OFDM symbol at place falls behind the OFDM symbol that PBCH is located in time domain；5）The OFDM symbol that PSS and SSS is located and PBCH institutes OFDM symbol is in different subframes and the OFDM symbol that is located of PSS and SSS is located in first time slot of subframe 1, PBCH Second time slot of the OFDM symbol in subframe 0；

At this point it is possible to be located according to the PSS and/or SSS for the detecting OFDM symbol being located and the PBCH for detecting The position relationship and/or the position relationship of place subframe of transmission sequence and/or place time slot of the OFDM symbol in time domain, and/ Or, the OFDM symbol that PSS and/or SSS is located meets with the mark space of first OFDM symbol at the PBCH places for detecting The corresponding relation of above-mentioned which kind of carrier wave is judging carrier type.

Example IV：

For legacy carrier waves, PSS is transmitted in last OFDM symbol of subframe 0 and/6 first time slot, and SSS exists The second-to-last OFDM symbol transmission of subframe 0 and/6 first time slot；CRS may be at antenna port 0 or port 0,1 or end Mouthfuls 0,1,2 or port 0,1,2,3 on transmit, as shown in Fig. 2 a, 2b, i.e. CRS at least in each time slot of each subframe the 1st Transmit with the 5th OFDM symbol（When 3 or 4 antenna ports are transmitted, can also transmit in the 2nd and the 4th OFDM symbol）, this When, the nearest CRS place OFDM symbol of PSS places OFDM symbol and advanced PSS（5th OFDM of i.e. first time slot Symbol）1 OFDM symbol in interval, with the nearest CRS place OFDM symbol for falling behind PSS（That is first of second time slot OFDM symbol）It is adjacent（It is spaced 0 OFDM symbol）, i.e. PSS places OFDM symbol and nearest CRS place OFDM symbol （That is first OFDM symbol of second time slot）0 OFDM symbol in interval；SSS places OFDM symbol is nearest with advanced SSS's One CRS places OFDM symbol（5th OFDM symbol of i.e. first time slot）0 OFDM symbol in interval, with backward SSS most Nearly CRS place OFDM symbol（That is first OFDM symbol of second time slot）1 OFDM symbol in interval, i.e. SSS is located OFDM symbol and nearest CRS place OFDM symbol（5th OFDM symbol of i.e. first time slot）0, interval OFDM symbols Number；

For legacy carrier waves, CRS is only in antenna port 0 with 5ms as periodic transfer, it is assumed that PSS is in subframe on NCT carrier waves Transmit in the 3rd OFDM symbol of first time slot in 0 and 6, the 2nd OFDM symbols of SSS first time slot in subframe 0 and 6 Transmission on number, if then the transmission subframe of CRS is also subframe 0 and 6, now, PSS places OFDM symbol is nearest with advanced PSS's One CRS places OFDM symbol（1st OFDM symbol of i.e. first time slot）1 OFDM symbol in interval, with backward PSS most Nearly CRS place OFDM symbol（5th OFDM symbol of i.e. first time slot）1 OFDM symbol in interval, SSS places OFDM The nearest CRS place OFDM symbol of symbol and advanced SSS（1st OFDM symbol of i.e. first time slot）0, interval OFDM symbol, with the nearest CRS place OFDM symbol for falling behind SSS（5th OFDM symbol of i.e. first time slot）Interval 2 Individual OFDM symbol；If the transmission subframe of CRS is subframe 1 and 7, now, PSS places OFDM symbol is located with a nearest CRS OFDM symbol（That is the 1st OFDM symbol of first time slot of subframe 1）Interval 7 OFDM symbols, SSS places OFDM symbol with Nearest CRS place OFDM symbol（That is the 1st OFDM symbol of first time slot of subframe 1）8 OFDM symbols in interval；

Now, the OFDM symbol that can be located according to the PSS that detects with nearest one（Including advanced and falling behind）CRS The OFDM symbol number at place OFDM symbol interval meets the definition of above-mentioned which kind of carrier wave, and/or, it is located according to the SSS for detecting OFDM symbol with nearest one（Including advanced and falling behind）On the OFDM symbol number at CRS places OFDM symbol interval meets Which kind of state the definition of carrier wave to judge carrier type；Or, can with the OFDM symbol being located according to the PSS that detects with fall Afterwards and/or in advance the OFDM symbol number at the nearest CRS place OFDM symbol interval of PSS meets determining for above-mentioned which kind of carrier wave Justice, and/or, OFDM symbol and the nearest CRS place OFDM symbol of backwardness and/or advanced SSS that the SSS for detecting is located The OFDM symbol number at interval meets the definition of above-mentioned which kind of carrier wave to judge carrier type.

To sum up, beneficial effects of the present invention include：

In scheme provided in an embodiment of the present invention, terminal can be located according to the synchronizing signal detected on current carrier Resource and the PBCH that the detects resource that is located between position relationship, or according to detecting on current carrier PBCH, or the resource at the resource according to the synchronizing signal place detected on current carrier and the CRS places for detecting Position relationship, or according to the transmission subframe of the CRS detected on current carrier, or detect according on current carrier The frequency domain resource that used of synchronous transmission of signal, the carrier type of current carrier is determined, so as to solve how terminal recognizes The problem of carrier type.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow process of computer program Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram The combination of journey and/or square frame and flow chart and/or the flow process in block diagram and/or square frame.These computer programs can be provided The processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices The device of the function of specifying in present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.

These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy In determining the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or The function of specifying in multiple square frames.

These computer program instructions also can be loaded in computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one The step of function of specifying in individual square frame or multiple square frames.

, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising these changes and modification.

Claims

1. a kind of recognition methodss of carrier type, it is characterised in that the method includes：

Terminal detects synchronizing signal on current carrier, and according to the synchronization signal detection Physical Broadcast Channel PBCH for detecting；

The terminal is according to the position between the resource at the synchronizing signal place for detecting and the resource at the PBCH places for detecting Relation, or according to the PBCH for detecting, determine the carrier type of current carrier；

Wherein, the carrier type includes first kind carrier wave and Equations of The Second Kind carrier wave；The first kind carrier wave is tradition legacy loads Ripple, the Equations of The Second Kind carrier wave is new wave-carring type NCT carrier wave.

2. the method for claim 1, it is characterised in that the resource that the terminal is located according to the synchronizing signal for detecting Position relationship between the resource being located with the PBCH for detecting, determines the carrier type of current carrier, specifically includes：

The orthogonal frequency division multiplex OFDM that the terminal is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain Symbol numbers, determine the carrier type of current carrier；Or,

The position relationship of transmission sequence or place time slot according to the synchronizing signal for detecting with the PBCH for detecting in time domain Or the position relationship of place subframe, determine the carrier type of current carrier；Or,

According to the OFDM symbol number that the synchronizing signal for detecting is spaced with the PBCH for detecting in time domain, and detect The position relationship of transmission sequence or place time slot of the synchronizing signal with the PBCH for detecting in time domain or the position of place subframe Relation, determines the carrier type of current carrier.

3. method as claimed in claim 2, it is characterised in that the synchronizing signal includes master sync signal PSS and/or auxiliary same Step signal SSS.

4. method as claimed in claim 3, it is characterised in that for frame structure Class1, the terminal is same according to what is detected The OFDM symbol number that step signal is spaced with the PBCH for detecting in time domain, determines the carrier type of current carrier, concrete bag Include：

If k-th OFDM symbol in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting, K-1 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；Or,

If k-th OFDM symbol in the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting, K OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；Or,

K-th OFDM symbol in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting, K-1 OFDM symbol, and the OFDM at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting are spaced in time domain K-th OFDM symbol in symbol, is spaced k OFDM symbol in time domain, it is determined that current carrier is first kind carrier wave；It is no Then, determine that current carrier is Equations of The Second Kind carrier wave；

5. method as claimed in claim 3, it is characterised in that for frame structure type 2, the terminal is same according to what is detected The OFDM symbol number that step signal is spaced with the PBCH for detecting in time domain, determines the carrier type of current carrier, concrete bag Include：

If k-th OFDM symbol in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting, K-k+A OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise determine that current carrier is second Class carrier wave；Or,

If k-th OFDM symbol in the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting, K-k+B OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If k-th OFDM symbol in the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting, It is spaced K-k+A OFDM symbol in time domain, and the SSS that the detects OFDM symbol being located and the PBCH places that detect K-th OFDM symbol in OFDM symbol, is spaced K-k+B OFDM symbol in time domain, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the number of the OFDM symbol that PBCH transmission is located on first kind carrier wave；In conventional cyclic prefix CP Under, A=5, B=2, under extension CP, A=4, B=1.

6. method as claimed in claim 3, it is characterised in that for frame structure Class1, the terminal is same according to what is detected The position relationship of transmission sequence or place time slot of the step signal with the PBCH for detecting in time domain or the position of place subframe are closed System, determines the carrier type of current carrier, specifically includes：

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet first condition, it is determined that current carrier is first kind load Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet second condition, it is determined that current carrier is first kind load Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the OFDM that the SSS for detecting is located Position relationship or the place of transmission sequence or place time slot of the OFDM symbol that symbol is located with the PBCH for detecting in time domain The position relationship of subframe meets second condition, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；

Wherein, the first condition includes：The PBCH institutes that the OFDM symbol that the PSS for detecting is located is detected in advance in time domain OFDM symbol, or, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is same The different time-gap of subframe or same subframe, or, the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting OFDM symbol in same subframe and the OFDM symbol OFDM symbols that advanced PBCH is located in time domain that are located of PSS, or, detect To the OFDM symbol that is located of the OFDM symbols that are located of PSS and the PBCH that detects in same subframe and the OFDM symbols that are located of PSS Second time slot of number OFDM symbol being located in first time slot of the subframe, PBCH in the subframe；

The second condition includes：What the PBCH that the OFDM symbol that the SSS for detecting is located is detected in advance in time domain was located OFDM symbol, or, the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe Or the different time-gap of same subframe, or, the OFDM symbols that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting Number in same subframe and the OFDM symbols at OFDM symbol advanced PBCH places in time domain that are located of SSS, or, detect The OFDM symbol that the OFDM symbol that SSS is located is located with the PBCH that detects is in same subframe and the OFDM symbols that are located of SSS exist Second time slot of the OFDM symbol that first time slot of the subframe, PBCH are located in the subframe.

7. method as claimed in claim 3, it is characterised in that for frame structure type 2, the terminal is same according to what is detected The position relationship of transmission sequence or place time slot of the step signal with the PBCH for detecting in time domain or the position of place subframe are closed System, determines the carrier type of current carrier, specifically includes：

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet third condition, it is determined that current carrier is first kind load Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet fourth condition, it is determined that current carrier is first kind load Ripple；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the OFDM that the SSS for detecting is located Position relationship or the place of transmission sequence or place time slot of the OFDM symbol that symbol is located with the PBCH for detecting in time domain The position relationship of subframe meets fourth condition, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is second Class carrier wave；

Wherein, the third condition includes：The OFDM symbol that the PSS for detecting the is located PBCH institutes that backwardness is detected in time domain OFDM symbol, or, the OFDM symbol that the OFDM symbol that the PSS that detects is located is located with the PBCH for detecting is adjacent The different time-gap of subframe or adjacent sub-frame, or, the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting OFDM symbol in adjacent sub-frame and PSS be located OFDM symbol in time domain fall behind PBCH be located OFDM symbol, or, detection To the OFDM symbol that is located of the OFDM symbols that are located of PSS and the PBCH that detects in adjacent sub-frame and the OFDM symbols that are located of PSS Number it is located at first time slot of latter subframe, the OFDM symbol that PBCH is located is located at second time slot of previous subframe；

The fourth condition includes：The OFDM symbol that the SSS for detecting the is located PBCH that backwardness is detected in time domain is located OFDM symbol, or, the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting is in same subframe Or the identical time slot of same subframe, or, the OFDM symbols that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting Number in same subframe and the OFDM symbols that are located of SSS fall behind the OFDM symbol that PBCH is located in time domain, or, detect The OFDM symbol that the OFDM symbol that SSS is located is located with the PBCH for detecting is located in the identical time slot and SSS of same subframe OFDM symbol falls behind the OFDM symbol that PBCH is located in time domain, or, the OFDM symbol that the SSS that detects is located with detect PBCH be located OFDM symbol same subframe second time slot and SSS be located OFDM symbol in time domain fall behind PBCH The OFDM symbol at place.

8. method as claimed in claim 3, it is characterised in that for frame structure Class1, the terminal is same according to what is detected The step OFDM symbol number that is spaced in time domain with the PBCH for detecting of signal, and the synchronizing signal for detecting with detect The position relationship or the position relationship of place subframe of transmission sequences or place time slot of the PBCH in time domain, determines current carrier Carrier type, specifically includes：

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the OFDM that the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced k-1 OFDM symbol in time domain, Then determine that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet second condition, and the OFDM that the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced k OFDM symbol in time domain, Then determine that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet first condition, and the OFDM that the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced k-1 OFDM symbol in time domain, And transmission sequence or institute of the OFDM symbol at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting in time domain Meet second condition, and the OFDM symbol that the SSS for detecting is located in the position relationship of time slot or the position relationship of place subframe K-th OFDM symbol in the OFDM symbol being located with the PBCH for detecting, is spaced k OFDM symbol, then really in time domain Current carrier is determined for first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave；

The first condition includes：What the PBCH that the OFDM symbol that the PSS for detecting is located is detected in advance in time domain was located OFDM symbol, or, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in same subframe Or the different time-gap of same subframe, or, the OFDM symbols that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Number in same subframe and the OFDM symbols at OFDM symbol advanced PBCH places in time domain that are located of PSS, or, detect The OFDM symbol that the OFDM symbol that PSS is located is located with the PBCH that detects is in same subframe and the OFDM symbols that are located of PSS exist Second time slot of the OFDM symbol that first time slot of the subframe, PBCH are located in the subframe；

9. method as claimed in claim 3, it is characterised in that for frame structure type 2, the terminal is same according to what is detected The step OFDM symbol number that is spaced in time domain with the PBCH for detecting of signal, and the synchronizing signal for detecting with detect The position relationship or the position relationship of place subframe of transmission sequences or place time slot of the PBCH in time domain, determines current carrier Carrier type, specifically includes：

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the OFDM that the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced K-k+A OFDM symbol in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the SSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet fourth condition, and the OFDM that the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced K-k+B OFDM symbol in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If transmission sequence of the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet third condition, and the OFDM that the PSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced K-k+A OFDM symbol in time domain Number, and transmission sequence of the OFDM symbol at the SSS for the detecting OFDM symbol being located and the PBCH places for detecting in time domain Or the position relationship of place time slot or the position relationship of place subframe meet fourth condition, and the OFDM that the SSS for detecting is located K-th OFDM symbol in the OFDM symbol that symbol is located with the PBCH for detecting, is spaced K-k+B OFDM symbol in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

Wherein, 1≤k≤K, K are the OFDM symbol number that PBCH transmission is located on first kind carrier wave；Under conventional CP, A=5, B= 2, under extension CP, A=4, B=1；

The third condition includes：The OFDM symbol that the PSS for detecting the is located PBCH that backwardness is detected in time domain is located OFDM symbol, or, the OFDM symbol that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting is in adjacent sub-frame Or the different time-gap of adjacent sub-frame, or, the OFDM symbols that the OFDM symbol that the PSS for detecting is located is located with the PBCH for detecting Number in adjacent sub-frame and the OFDM symbols that are located of PSS fall behind the OFDM symbol that PBCH is located in time domain, or, detect The OFDM symbol that the OFDM symbol that PSS is located is located with the PBCH that detects is in adjacent sub-frame and the OFDM symbol positions that are located of PSS The OFDM symbol that first time slot, PBCH in latter subframe is located is located at second time slot of previous subframe；

10. the method for claim 1, it is characterised in that the terminal determines current carrier according to the PBCH for detecting Carrier type, specifically include：

11. methods as claimed in claim 10, it is characterised in that the demodulation that the terminal is used according to the PBCH for detecting The type of signal, determines the carrier type of current carrier, specifically includes：

If the demodulated signal that the PBCH for detecting is used is cell own reference signal CRS, it is determined that current carrier is the first kind Carrier wave；If the demodulated signal that the PBCH for detecting is used is downlink user DRS (Dedicated Reference Signal) DRS, it is determined that current carrier is the Two class carrier waves.

12. methods as claimed in claim 10, it is characterised in that the time domain that the terminal is located according to the PBCH for detecting And/or frequency domain resource, determine the carrier type of current carrier, specifically include：

If the time-domain position that the PBCH that detects is located is front 4 OFDM symbols of a time slot, or the in a radio frames One subframe, or second time slot of a subframe, or front 4 OFDM symbols of second time slot of a subframe, or one Front 4 OFDM symbols of second time slot of first subframe in radio frames, it is determined that current carrier is first kind carrier wave；It is no Then, determine that current carrier is Equations of The Second Kind carrier wave；And/or,

If the time-frequency domain resources that the PBCH for detecting is located are PBCH in 6 central Physical Resource Block PRB of current carrier frequency domain RE in the OFDM symbol that transmission is located in addition to CRS is in corresponding RE on antenna port 0,1,2,3, it is determined that current carrier For first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

13. methods as claimed in claim 10, it is characterised in that the coding that the terminal is carried according to the PBCH for detecting Bit number, determines the carrier type of current carrier, specifically includes：

It is 1728 ratios under extension CP if the number of coded bits that the PBCH for detecting is carried is 1920 bits under conventional CP It is special, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

14. a kind of recognition methodss of carrier type, it is characterised in that the method includes：

Terminal detects synchronizing signal on current carrier, and according to the synchronization signal detection cell own reference signal for detecting CRS；

The position relationship of the resource that the terminal is located according to the resource that the synchronizing signal for detecting is located with the CRS for detecting, Or, according to the transmission subframe of the CRS for detecting, determine the carrier type of current carrier；

15. methods as claimed in claim 14, it is characterised in that the money that the terminal is located according to the synchronizing signal for detecting The position relationship of the resource that source is located with the CRS for detecting, determines the carrier type of current carrier, specifically includes：

The OFDM symbol that the OFDM symbol being located according to the synchronizing signal that detects and the CRS for detecting are located, in the time domain between Every OFDM symbol number, determine the carrier type of current carrier；Or,

According to the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, in time domain The position relationship of the position relationship or place subframe of transmission sequence or place time slot, determines the carrier type of current carrier；Or,

The OFDM symbol that the OFDM symbol being located according to the synchronizing signal that detects and the CRS for detecting are located, in the time domain between Every OFDM symbol number, and, the OFDM symbols that OFDM symbol that the synchronizing signal that detects is located and the CRS for detecting are located Number, the position relationship or the position relationship of place subframe of transmission sequence or place time slot in time domain determine current carrier Carrier type；Or,

It is whether identical with the subframe that the CRS for detecting is located according to the subframe that the synchronizing signal for detecting is located, it is determined that working as front bearing The carrier type of ripple；

16. methods as claimed in claim 15, it is characterised in that the terminal is located according to the synchronizing signal for detecting The OFDM symbol that OFDM symbol is located with the CRS for detecting, the OFDM symbol number being spaced in time domain, determines current carrier Carrier type, specifically includes：

If the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting, the minimum interval in time domain is 0 Individual OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting, the minimum interval in time domain is 0 Individual OFDM symbol, and, the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting, the minimum in time domain At intervals of 0 OFDM symbol, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

17. methods as claimed in claim 15, it is characterised in that the terminal is located according to the synchronizing signal for detecting The OFDM symbol that OFDM symbol is located with the CRS for detecting, the OFDM symbol number being spaced in time domain, and, detect The OFDM symbol that the OFDM symbol that synchronizing signal is located is located with the CRS that detects, transmission sequence in time domain or when being located The position relationship of gap or the position relationship of place subframe, determine the carrier type of current carrier, specifically include：

If the closest PSS and advanced institute in the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting The OFDM symbol of PSS is stated, 1 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave；Or,

If the closest PSS and backward institute in the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting The OFDM symbol of PSS is stated, 0 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave；Or,

If the closest SSS and advanced institute in the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting The OFDM symbol of SSS is stated, 0 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave；Or,

If the closest SSS and backward institute in the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting The OFDM symbol of SSS is stated, 1 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave；Or,

If the closest PSS and advanced institute in the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting State the OFDM symbol of PSS, 1 OFDM symbol be spaced in time domain, and, the OFDM symbol that the PSS that detects is located with detect The OFDM that are located of CRS in the closest PSS and the backwardness PSS OFDM symbol, 0 OFDM symbol is spaced in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the closest SSS and advanced institute in the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting State the OFDM symbol of SSS, 0 OFDM symbol be spaced in time domain, and, the OFDM symbol that the SSS that detects is located with detect The OFDM that are located of CRS in the closest SSS and the backwardness SSS OFDM symbol, 1 OFDM symbol is spaced in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；Or,

If the closest PSS and advanced institute in the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting State the OFDM symbol of PSS, 1 OFDM symbol be spaced in time domain, and, the OFDM symbol that the PSS that detects is located with detect The OFDM that are located of CRS in the closest PSS and the backwardness PSS OFDM symbol, 0 OFDM symbol is spaced in time domain Number, and, the closest SSS and advanced institute in the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting State the OFDM symbol of SSS, 0 OFDM symbol be spaced in time domain, and, the OFDM symbol that the SSS that detects is located with detect The OFDM that are located of CRS in the closest SSS and the backwardness SSS OFDM symbol, 1 OFDM symbol is spaced in time domain Number, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

18. methods as claimed in claim 15, it is characterised in that the son that the terminal is located according to the synchronizing signal for detecting Whether the subframe that frame is located with the CRS for detecting is identical, determines the carrier type of current carrier, specifically includes：

If the subframe that the synchronizing signal that detects is located is identical with the subframe that the CRS for detecting is located, it is determined that current carrier is First kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave.

19. methods as claimed in claim 14, it is characterised in that the terminal according to the transmission subframe of the CRS for detecting, really Determine the carrier type of current carrier, specifically include：

If detecting CRS in continuously at least 2 subframes, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current Carrier wave is Equations of The Second Kind carrier wave.

20. a kind of recognition methodss of carrier type, it is characterised in that the method includes：

Terminal detects synchronizing signal on current carrier；

The frequency domain resource that the terminal is used according to the synchronous transmission of signal for detecting, determines the carrier type of current carrier；

21. methods as claimed in claim 20, it is characterised in that the terminal is made according to the synchronous transmission of signal for detecting Frequency domain resource, determines the carrier type of current carrier, specifically includes：

If the frequency domain resource that the synchronous transmission of signal for detecting is used is continuous subcarrier, it is determined that current carrier is first Class carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind carrier wave；

22. a kind of terminals, it is characterised in that the terminal includes：

Detector unit, for detecting synchronizing signal on current carrier, and according to the synchronization signal detection physical broadcast for detecting Channel PBCH；

Recognition unit, between the resource being located for the resource being located according to the synchronizing signal for detecting and the PBCH for detecting Position relationship, or according to the PBCH for detecting, determine the carrier type of current carrier；

Wherein, the carrier type includes：First kind carrier wave and Equations of The Second Kind carrier wave；The first kind carrier wave is tradition legacy loads Ripple, the Equations of The Second Kind carrier wave is new wave-carring type NCT carrier wave.

23. terminals as claimed in claim 22, it is characterised in that the recognition unit is used for：As follows according to inspection Position relationship between the resource that the resource at the synchronizing signal place for measuring and the PBCH for detecting are located, determines current carrier Carrier type：

According to the orthogonal frequency division multiplex OFDM symbol numbers that the synchronizing signal for detecting is spaced with the PBCH for detecting in time domain, Determine the carrier type of current carrier；Or,

24. terminals as claimed in claim 23, it is characterised in that the synchronizing signal includes master sync signal PSS and/or auxiliary Synchronizing signal SSS.

25. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure Class1, press According to the OFDM symbol number that following method is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain, it is determined that working as The carrier type of front carrier wave：

26. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure type 2, press According to the OFDM symbol number that following method is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain, it is determined that working as The carrier type of front carrier wave：

27. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure Class1, press The position of transmission sequence or place time slot according to following method according to the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship of relation or place subframe is put, the carrier type of current carrier is determined：

28. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure type 2, press The position of transmission sequence or place time slot according to following method according to the synchronizing signal for detecting with the PBCH for detecting in time domain The position relationship of relation or place subframe is put, the carrier type of current carrier is determined：

29. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure Class1, press According to the OFDM symbol number that following method is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain, Yi Jijian The position relationship or place subframe of transmission sequence or place time slot of the synchronizing signal for measuring with the PBCH for detecting in time domain Position relationship, determine the carrier type of current carrier：

30. terminals as claimed in claim 24, it is characterised in that the recognition unit is used for：For frame structure type 2, press According to the OFDM symbol number that following method is spaced with the PBCH for detecting according to the synchronizing signal for detecting in time domain, Yi Jijian The position relationship or place subframe of transmission sequence or place time slot of the synchronizing signal for measuring with the PBCH for detecting in time domain Position relationship, determine the carrier type of current carrier：

31. terminals as claimed in claim 22, it is characterised in that the recognition unit is used for：As follows according to inspection The PBCH for measuring, determines the carrier type of current carrier：

32. terminals as claimed in claim 31, it is characterised in that the recognition unit is used for：As follows according to inspection The type of the demodulated signal that the PBCH for measuring is used, determines the carrier type of current carrier：

33. terminals as claimed in claim 31, it is characterised in that the recognition unit is used for：As follows according to inspection Time domain and/or frequency domain resource that the PBCH for measuring is located, determine the carrier type of current carrier：

34. terminals as claimed in claim 31, it is characterised in that the recognition unit is used for：As follows according to inspection The number of coded bits that the PBCH for measuring is carried, determines the carrier type of current carrier：

35. a kind of terminals, it is characterised in that the terminal includes：

Detector unit for detecting synchronizing signal and exclusive according to the synchronization signal detection cell for detecting on current carrier Reference signal CRS；

Recognition unit, the position of the resource that the resource for being located according to the synchronizing signal for detecting is located with the CRS for detecting Relation, or, the transmission subframe of the CRS for detecting determines the carrier type of current carrier；

36. terminals as claimed in claim 35, it is characterised in that the recognition unit is used for：As follows according to inspection The position relationship of the resource that the resource that the synchronizing signal for measuring is located is located with the CRS for detecting, determines the carrier wave of current carrier Type：

37. terminals as claimed in claim 36, it is characterised in that the recognition unit is used for：As follows according to inspection The OFDM symbol that the OFDM symbol that the synchronizing signal for measuring is located is located with the CRS for detecting, the OFDM symbols being spaced in time domain Number number, determines the carrier type of current carrier：

38. terminals as claimed in claim 36, it is characterised in that the recognition unit is used for：As follows according to inspection The OFDM symbol that the OFDM symbol that the synchronizing signal for measuring is located is located with the CRS for detecting, the OFDM symbols being spaced in time domain Number number, and, the OFDM symbol that the OFDM symbol that the synchronizing signal for detecting is located is located with the CRS for detecting, in time domain On transmission sequence or place time slot position relationship or the position relationship of place subframe, determine the carrier type of current carrier：

If the closest SSS and backward institute in the OFDM that the OFDM symbol that the SSS for detecting is located is located with the CRS for detecting The OFDM symbol of SSS is stated, 1 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines Current carrier is Equations of The Second Kind carrier wave；Or, if the OFDM that the OFDM symbol that the PSS for detecting is located is located with the CRS for detecting In the closest PSS and the advanced PSS OFDM symbol, 1 OFDM symbol is spaced in time domain, and, the PSS for detecting The OFDM symbol of the closest PSS and the backwardness PSS in the OFDM that the OFDM symbol at place is located with the CRS for detecting, 0 OFDM symbol is spaced in time domain, it is determined that current carrier is first kind carrier wave；Otherwise, it determines current carrier is Equations of The Second Kind Carrier wave；Or,

39. terminals as claimed in claim 36, it is characterised in that the recognition unit is used for：As follows according to inspection Whether the subframe that the subframe that the synchronizing signal for measuring is located is located with the CRS for detecting is identical, determines the carrier-class of current carrier Type：

40. terminals as claimed in claim 35, it is characterised in that the recognition unit is used for：As follows according to inspection The transmission subframe of the CRS for measuring, determines the carrier type of current carrier：

41. a kind of terminals, it is characterised in that the terminal includes：

Detector unit, for detecting synchronizing signal on current carrier；

Recognition unit, for the frequency domain resource used according to the synchronous transmission of signal for detecting, determines the carrier wave of current carrier Type；

42. terminals as claimed in claim 41, it is characterised in that the recognition unit is used for：