CN103379072B

CN103379072B - A kind of method for transmitting signals and device

Info

Publication number: CN103379072B
Application number: CN201210119229.8A
Authority: CN
Inventors: 高雪娟; 林亚男; 沈祖康
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-04-20
Filing date: 2012-04-20
Publication date: 2016-12-14
Anticipated expiration: 2032-04-20
Also published as: CN103379072A; WO2013155978A1

Abstract

The invention discloses a kind of method for transmitting signals and device, in order to avoid synchronizing signal overlapping with reference signal, it is ensured that while the normal Time and Frequency Synchronization of carrier wave, can be with normal transmission reference signal, it is ensured that tracking performance also improves downlink data transmission efficiency.A kind of signal acceptance method that the present invention provides includes: user equipment (UE) determines time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or the frequency domain resource being used for synchronous signal transmission on described carrier wave is different for transmitting the frequency domain resource of downlink reference signal from this carrier wave；User equipment (UE) according on carrier wave for the time-domain resource of synchronous signal transmission and frequency domain resource, detect the synchronizing signal on described carrier wave.

Description

A kind of method for transmitting signals and device

Technical field

The present invention relates to communication technical field, particularly relate to a kind of method for transmitting signals and device.

Background technology

Long Term Evolution strengthen (Long Term Evolution-Advanced, LTE-A) version 11 (Release-11, Rel-11) carrier aggregation (Carrier Aggregation, CA) system supports new carrier type (Additional Carrier Type or New Carrier Type, NCT), to improve frequency efficiency, to reduce power consumption.It is special to there is community in NCT Belong to the transmission of the tracking reference signals such as reference signal (Cell-specific Reference Signals, CRS), be used for measuring Maintain with synchronization, also can there is subscriber equipment (User Equipment, UE) DRS (Dedicated Reference Signal) (being called for short DRS, or UE-RS) and use In downstream modulation.On the other hand, when NCT carrier wave is asynchronous carrier wave, need synchronous signal transmission to carry out independent time-frequency Synchronize.

In lte-a system, the peak rate of system has than Long Term Evolution (Long Term Evolution, LTE) system Huge raising, it is desirable to reach descending 1Gbps, up 500Mbps.Therefore, lte-a system needs extending user equipment can use band Width, will multiple continuous or discrete carrier aggregation under same evolved base station (eNB) together, take for UE simultaneously Business, the speed needed for providing, as shown in Figure 1.These carrier waves condensed together are also called member carrier (CC, Component Carrier).Each community can be a member carrier, and the community (member carrier) under different eNB can not be polymerized.In order to Ensureing that the UE in LTE system can be at each carrier operation being polymerized, each carrier wave maximum is less than 20MHz.

Synchronizing signal in LTE system is described below:

Synchronizing signal includes master sync signal (PSS, Primary Synchronized Signal) and auxiliary synchronous signals (SSS, Secondary Synchronization Signal).PSS has three sequences, every 5 milliseconds (Millisecond, letters Claim ms) transmission primaries, the sequence of former and later two fields transmission is identical, to obtain 5ms timing.SSS by two a length of 31 two System sequence interweaves and cascades, PSS the scramble sequence indicated scrambles, and interleaving mode is different at former and later two fields, to obtain Obtain 10ms timing, i.e. determine the timing original position of radio frames.

At frequency domain, PSS and SSS only takes up 72 central sub-carrier-wave transmission of each CC frequency band, and (reality only carries at 62 sons On ripple transmit, remaining 10 subcarrier as and other data protection interval).In time domain, for frame structure Class1, i.e. frequency Dividing the wireless frame structure in duplex (FDD, Frequency Division Duplex) system, PSS and SSS is respectively time slot 0 He Last of time slot 10 and penultimate OFDM (OFDM, Orthogonal Frequency Division Multiplexing) transmit on symbol；For frame structure type 2, i.e. time division duplex (TDD, Time Division Duplex) Wireless frame structure in system, PSS transmits in the 3rd OFDM symbol of subframe 1 and subframe 6, and wherein subframe 1 is special son Frame, including descending pilot frequency time slot (DwPTS, Downlink Pilot Time Slot), guard time (GP, Guard Period) With uplink pilot time slot (UpPTS, Uplink Pilot Time Slot), subframe 6 only 5ms descending-TDD of up switching point Uplink/downlink configuration be special subframe, subframe 6 10ms descending-configuration of the TDD uplink/downlink of up switching point in be commonly under Row subframe, SSS transmits in last OFDM symbol of time slot 1 and time slot 11, as shown in Figures 2 and 3, respectively FDD system System synchronizing signal mapping position and the schematic diagram of TDD system synchronizing signal mapping position, the sub-carrier number in wherein Nc is band.

DRS in lte-a system is described below:

Lte-a system defines 9 kinds of downlink transfer patterns, and the transmission mode of UE is configured by high-level signaling.DRS is used for supporting The signal demodulation of transmission mode 7～9, supports 1～8 antenna port transmission, is arranged respectively at antenna port p=5, p=7, p=8 Or p=7,8 ..., υ+6, wherein υ is Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared CHannel) layer (Layer) number transmitted.DRS is only at Physical Resource Block (PRB, the Physical using transmission mode 7～9 Resource Block) upper transmission, and the DRS mapping position on antenna port 7/8/11/13 is identical, antenna port 9/10/12/ DRS mapping position on 14 is identical, is distinguished by the orthogonal sequence in table 1 below and table 2, opens reducing reference signal Disturb between pin, saving energy, minimizing neighbour.Under extended cyclic prefix (CP, Cyclic Prefix), DRS is only supported at antenna port 7,8 transmission.Seeing Fig. 4 to Fig. 7, wherein, Fig. 4 is the DRS resource mapping graph of antenna port 5 under conventional CP；Fig. 5 is under extension CP The DRS resource mapping graph of antenna port 5；Fig. 6 is the DRS resource mapping graph of antenna port 7,8,9,10 under conventional CP；Fig. 7 is for expanding The DRS resource mapping graph of antenna port 7,8 under exhibition CP.

Table 1: under conventional CP, the DRS orthogonal sequence of different antennae port

Table 2: under extension CP, the DRS orthogonal sequence of different antennae port

New carrier type in lte-a system is described below:

In order to improve resource utilization ratio further, LTE-ARel-11 determines that the new carrier type of introducing is with enhancing system The availability of frequency spectrum, preferably support heterogeneous network, reduce power consumption.For new carrier type programme of work the most under discussion, mesh Before the conclusion reached include: support that the CRS at antenna port 0 5ms of upper cycle transmits；Can not work alone, need to be with one Legacy member carrier or legacy community (are inherited member carrier or inherit community, i.e. referring to before Rel-11 in the system of version Definition member carrier or community, such as Rel-8, Rel-9, Rel-10 system defined in there is respective version function and characteristic Member carrier or community) associated working；Whether exist certain inclined in time domain and frequency domain with legacy carrier wave according to receiving terminal Difference, is divided into sync carrier and asynchronous carrier wave, and the latter needs to carry out single Time and Frequency Synchronization process.

The downlink reception mode of lte-a system is as follows:

For frame structure Class1: at Physical Downlink Control Channel (PDCCH, the Physical Downlink of conventional CP Control Channel) take in the subframe of 4 OFDM symbol, UE will not receive PDSCH at antenna port 5；If two PRB there is one on frequency domain and Physical Broadcast Channel (PBCH, Physical Broadcast CHannel) or PSS/SSS Resource is overlapping in same subframe, and UE will not connect in the two PRB on antenna port 5,7,8,9,10,11,12,13 or 14 Receive PDSCH；If using the distribution of discrete virtual Physical Resource Block (VRB, Virtual Resource Block) resource, UE will not PDSCH is received at antenna port 7；If UE does not receive all Resource Block (RB, Resource Block) corresponding for PDSCH, UE may skip this transmission block of decoding (TB, Transport Block), if so, physical layer is notified that this TB high-rise does not has There is decoding success.

For frame structure type 2: in the PDCCH of conventional CP takies the subframe of 4 OFDM symbol, UE will not be in antenna end Mouth 5 receives PDSCH；If having one in two PRB in frequency and PBCH resource is overlapping in same subframe, UE will not be The PDSCH of the two PRB carrying of antenna port 5；If two PRB have the money taken with PSS or SSS on frequency domain There is aliasing in source in same subframe, UE will not connect in the two PRB on antenna port 7,8,9,10,11,12,13 or 14 Receive PDSCH；Under conventional CP configuration, in the special subframe using configuration 1 and 6, if using discrete VRB resource to distribute, UE PDSCH will not be received at antenna port 5；If using discrete VRB resource to distribute, UE will not receive PDSCH at antenna port 7； If UE does not receive all RB, UE corresponding for PDSCH may skip this TB of decoding, if so, physical layer is notified that height This TB of layer does not has decoding success.

Map based on above-mentioned FDD and TDD resource and limit, on the carrier wave of new carrier type, overlapping at DRS with PSS/SSS Subframe in, carrying PSS/SSS 72 subcarrier places, centre 6 RB on can not transmit DRS, therefore, carry out based on DRS The PDSCH of demodulation can not transmit in these RB, thus reduces the down transmission efficiency of new carrier type.

In sum, prior art does not the most determine for the transmission method of synchronizing signal and reference signal on NCT carrier wave Scheme.

Summary of the invention

Embodiments provide a kind of method for transmitting signals and device, in order to avoid synchronizing signal and reference signal weight Folded, it is ensured that while the normal Time and Frequency Synchronization of carrier wave, can be with normal transmission reference signal, it is ensured that tracking performance also improves lower line number According to efficiency of transmission.

A kind of signal acceptance method that the embodiment of the present invention provides includes:

User equipment (UE) determines time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, described load On ripple, the time-domain resource for synchronous signal transmission is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, And/or on described carrier wave on frequency domain resource and this carrier wave of synchronous signal transmission for transmitting the frequency domain of downlink reference signal Resource is different；

Described UE according on described carrier wave for the time-domain resource of synchronous signal transmission and frequency domain resource, detect described carrier wave On synchronizing signal.

A kind of signaling method that the embodiment of the present invention provides includes:

Base station determines time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, described carrier wave is used Different for transmitting the time-domain resource of downlink reference signal from this carrier wave in the time-domain resource of synchronous signal transmission, and/or institute State on carrier wave on frequency domain resource and this carrier wave of synchronous signal transmission for transmitting the frequency domain resource of downlink reference signal not With；

Base station sends synchronizing signal on described carrier wave in the time-domain resource and frequency domain resource of synchronous signal transmission.

A kind of signal receiving device that the embodiment of the present invention provides includes:

Synchronizing signal resource location determines unit, for determine on carrier wave for synchronous signal transmission time-domain resource and frequency Territory resource, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is used for transmitting descending reference letter on this carrier wave Number time-domain resource different, and/or on described carrier wave, frequency domain resource for synchronous signal transmission is used for transmitting on this carrier wave The frequency domain resource of downlink reference signal is different；

Synchronous signal detection unit, for according to time-domain resource and the frequency domain money being used for synchronous signal transmission on described carrier wave Source, detects the synchronizing signal on described carrier wave.

A kind of sender unit that the embodiment of the present invention provides includes:

Synchronizing signal transmitting element, for being used for time-domain resource and the frequency domain resource of synchronous signal transmission on described carrier wave Upper transmission synchronizing signal.

The embodiment of the present invention, user equipment (UE) determines time-domain resource and the frequency domain money on carrier wave for synchronous signal transmission Source, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is used for transmitting downlink reference signal on this carrier wave Time-domain resource is different, and/or is used for transmitting descending on described carrier wave on frequency domain resource and this carrier wave of synchronous signal transmission The frequency domain resource of reference signal is different；User equipment (UE) is according to time-domain resource and the frequency being used for synchronous signal transmission on described carrier wave Territory resource, detects the synchronizing signal on described carrier wave, thus avoids synchronizing signal overlapping with reference signal, is ensureing that carrier wave is normal Time and Frequency Synchronization while, can be with normal transmission reference signal, it is ensured that tracking performance also improves downlink data transmission efficiency.

Accompanying drawing explanation

Fig. 1 is carrier aggregation system schematic diagram；

Fig. 2 is FDD system synchronizing signal mapping position schematic diagram；

Fig. 3 is TDD system synchronizing signal mapping position schematic diagram；

Fig. 4 is the DRS resource mapping graph of antenna port 5 under conventional CP；

Fig. 5 is the DRS resource mapping graph of antenna port 5 under extension CP；

Fig. 6 is the DRS resource mapping graph of antenna port 7,8,9,10 under conventional CP；

Fig. 7 is the DRS resource mapping graph of antenna port 7,8 under extension CP；

The schematic flow sheet of a kind of signal acceptance method that Fig. 8 provides for the embodiment of the present invention；

The schematic flow sheet of a kind of signaling method that Fig. 9 provides for the embodiment of the present invention；

The structural representation of a kind of signal receiving device that Figure 10 provides for the embodiment of the present invention；

The structural representation of a kind of sender unit that Figure 11 provides for the embodiment of the present invention.

Detailed description of the invention

The technical scheme that the embodiment of the present invention provides, can apply to the signal transmission on NCT carrier wave, it is also possible to be applied to Signal transmission on other carrier waves.By synchronizing signal of making an appointment in time domain nonoverlapping with downlink reference signal or frequency domain position Put transmission, and configure tracking reference signal transmission in the subframe of nonsynchronous signal transmission place, thus ensure that NCT carrier wave is normal While Time and Frequency Synchronization, tracking performance can be ensured with normal transmission reference signal and improve downlink data transmission efficiency.

The technical scheme provided the embodiment of the present invention below in conjunction with the accompanying drawings illustrates.

Seeing Fig. 8, in user equipment side, a kind of signal acceptance method that the embodiment of the present invention provides includes:

S101, user equipment (UE) determine time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, institute State on carrier wave on time-domain resource and this carrier wave of synchronous signal transmission for transmitting the time-domain resource of downlink reference signal not With, and/or be used for transmitting downlink reference signal on described carrier wave in the frequency domain resource and this carrier wave of synchronous signal transmission Frequency domain resource is different；

S102, described UE according on described carrier wave for the time-domain resource of synchronous signal transmission and frequency domain resource, detect institute State the synchronizing signal on carrier wave.

It is preferred that described time-domain resource particularly as follows:

Orthogonal frequency division multiplex OFDM symbol in the subframe at signal transmission place and this subframe；Or signal transmission place OFDM symbol in time slot and this time slot；Or in the signal transmission subframe at place and time slot and this subframe and time slot OFDM symbol；

Described frequency domain resource is particularly as follows: signal transmits subcarrier or the Resource Block RB or Resource Unit RE at place.

It is preferred that the time-domain resource for synchronous signal transmission is used for transmitting descending reference on this carrier wave on described carrier wave The time-domain resource of signal is different, and/or the frequency domain resource being used for synchronous signal transmission on described carrier wave is used for passing on this carrier wave The frequency domain resource of defeated downlink reference signal is different, including:

Subframe for synchronous signal transmission is not used in transmission tracking downlink reference signal, and/or is used for transmitting synchronization The frequency domain resource of signal is not used in transmission tracking downlink reference signal.

Such as, signal acceptance method may include that

Step one: UE determines time domain and/or the frequency domain position at synchronous transmission of signal place on NCT, described time domain and frequency domain Position is the position of row reference signal transmission in the absence of subscriber equipment is made an appointment with base station, and described synchronous transmission of signal There is not tracking downlink reference signal in the subframe at place or on frequency domain position to transmit；

Step 2: UE determines transmission subframe and the frequency domain resource of tracking downlink reference signal on NCT carrier wave, described subframe It is not synchronous transmission of signal place subframe, and/or described frequency domain resource does not include the frequency domain position at synchronous transmission of signal place；

Step 3: UE detects this synchronizing signal in the time-frequency domain position at synchronous transmission of signal place, uses descending ginseng following the tracks of Examine detecting and tracking downlink reference signal in the transmission subframe of signal.

It is preferred that the frequency domain resource for synchronous signal transmission is on described carrier wave:

In addition to the subcarrier at described downlink reference signal transmission place the 62 or 72 of the frequency band central authorities of described carrier wave Individual subcarrier；Or

Continuous 62 or 72 subcarriers of the frequency band central authorities of described carrier wave.

It is preferred that the time-domain resource for synchronous signal transmission is on described carrier wave:

For frame structure Class1: in the OFDM symbol that master sync signal PSS and auxiliary synchronous signals SSS is adjacent in time domain Transmission, and the OFDM symbol transmission at the OFDM symbol at SSS place advanced PSS place in time domain；And/or,

For being spaced in time domain between OFDM symbol and the OFDM symbol at SSS place at frame structure type 2:PSS place Two OFDM symbol, and the OFDM symbol transmission at the OFDM symbol at SSS place advanced PSS place in time domain.

It is preferred that the time-domain resource for synchronous signal transmission is on described carrier wave: for frame structure Class1: SSS is at son Transmit in the 1st OFDM symbol in frame 1 and subframe 6, the PSS the 2nd OFDM symbol in subframe 1 and subframe 6 is transmitted；Or Person,

For transmitting in frame structure Class1: the SSS the 1st OFDM symbol in subframe 0 and subframe 5, PSS is subframe 0 He Transmit in the 2nd OFDM symbol in subframe 5；Or,

For transmitting in frame structure Class1: the SSS the 2nd OFDM symbol in subframe 0 and subframe 5, PSS is subframe 0 He Transmit in the 3rd OFDM symbol in subframe 5；Or,

For transmitting in frame structure Class1: the SSS the 3rd OFDM symbol in subframe 0 and subframe 5, PSS is subframe 0 He Transmit in the 4th OFDM symbol in subframe 5；Or,

For frame structure type 2: under conventional cyclic prefix CP, for special subframe configuration 1, special subframe configuration 2, spy Different sub-frame configuration 3, special subframe configuration 4, special subframe configuration 6, special subframe configuration 7 and special subframe configuration 8:SSS are at son Transmit in the 2nd OFDM symbol in frame 1 and subframe 6, the PSS the 5th OFDM symbol in subframe 1 and subframe 6 is transmitted, or Person, the SSS the 5th OFDM symbol in subframe 1 and subframe 6 is transmitted, the PSS the 8th OFDM symbol in subframe 1 and subframe 6 Transmission on number；Or,

For frame structure type 2: under extension CP, special subframe configuration 1, special subframe configuration 2, special subframe are joined Put and transmit in 3, special subframe configuration 5 and the special subframe configuration 6:SSS the 1st OFDM symbol in subframe 1 and subframe 6, PSS Transmit in the 4th OFDM symbol in subframe 1 and subframe 6, or, the SSS the 4th OFDM symbol in subframe 1 and subframe 6 Upper transmission, the PSS the 7th OFDM symbol in subframe 1 and subframe 6 is transmitted；Or,

For frame structure type 2: under conventional CP, SSS the 3rd OFDM symbol of the inverse in subframe 0 and subframe 5 is uploaded Defeated, the PSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted；Or,

For frame structure type 2: under extension CP, the SSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted, Transmit in the PSS the 4th OFDM symbol in subframe 1 and subframe 6.

Transmit in the PSS the 1st OFDM symbol in subframe 1 and subframe 6, in subframe 1 and subframe 6 the 2nd of SSS Transmit in OFDM symbol；Or, the SSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted, PSS is in subframe 1 and subframe Transmit in the 2nd OFDM symbol in 6.

Wherein, this time-domain resource definition mode can only for frame structure type 2 effectively, or can also be tied only for frame Structure Class1 is effective, or all effective to frame structure Class1 and 2, i.e. agreement frame structure Class1 and 2 uses identical time-domain resource Synchronous signal transmission.

It is preferred that described downlink reference signal at least includes DRS, it is also possible to farther include CRS, location reference signals (Positioning Reference Signal, PRS), channel state information reference signals (Channel State Information-Reference Signal, CSI-RS) in one or more combination.

It is preferred that described tracking downlink reference signal at least includes CRS, it is also possible to farther include in PRS, CSI-RS One or more combination.

It is preferred that described tracking downlink reference signal equidistantly transmits on frequency domain；Its transmission subframe is not for synchronizing letter The subframe at number transmission place, or its transmission subframe includes the subframe at synchronous transmission of signal place, and in synchronous transmission of signal institute Subframe in, its frequency domain resource does not include the frequency domain resource at synchronous transmission of signal place, such as tracking downlink reference signal The RB at transmission place does not include the RB at synchronous transmission of signal place；

It is preferred that for CRS, its transmission subframe is not the subframe at synchronous transmission of signal place, and frequency domain resource is that NCT carries All RB in ripple frequency band, i.e. all RB in NCT carrier frequency band transmit；

It is preferred that the transmission subframe of described tracking downlink reference signal and/or frequency domain resource are subscriber equipment and base station Make an appointment, or be the configuration letter according to the described tracking downlink reference signal received in high-level signaling/PDCCH signaling Breath obtain, described configuration information at least include for indicate/obtain described tracking downlink reference signal transmission subframe and/ Or the information of frequency domain resource；

It is preferred that described synchronizing signal includes PSS and/or SSS；

It is preferred that the time-domain position of described synchronous transmission of signal includes subframe/time slot and OFDM symbol position；

It is preferred that the frequency domain position of described synchronous transmission of signal can be:

62 (for the FDD) in addition to the subcarrier of DRS place or 72 (for TDD) of A:NCT carrier frequency band central authorities are individual Subcarrier (may need 7～8 RB)；Or,

Continuous 62 (for the FDD) of B:NCT carrier frequency band central authorities or 72 (for TDD) individual subcarrier (6 RB)；Such as: Assume that synchronous signal sequence is d (n), synchronizing signal with transmission RE (k, mapping relations l) can represent by equation below:

a_{K, l}=d (n), n=0 ..., 61

k = n - 31 + \frac{N_{RB}^{DL} N_{sc}^{RB}}{2}

Wherein, n=0 ..., 61 represent the sequence length of synchronizing signal, and l represents the OFDM symbol at synchronous transmission of signal place Number numbering,For the downstream transmission bandwidth of NCT carrier wave, represent with RB number,It it is the son comprised on frequency domain in a RB Variable number, generally 12, thereforeRepresent the total number of sub-carriers that NCT carrier wave downstream transmission bandwidth comprises,Then represent 62 subcarrier number of NCT carrier wave downstream transmission bandwidth central authorities；Particularly, for TDD, Provide as follows 10 tone reservations (be not used in synchronous signal transmission, without in transmit other data):

k = n - 31 + \frac{N_{RB}^{DL} N_{sc}^{RB}}{2}

N=-5 ,-4 ... ,-1,62,63 ... 66

When described frequency domain position is A: time-domain position can continue to use synchronizing signal in Rel-8 and Rel-9 and Rel-10 Time-domain position, or, it is also possible to by the time-domain position exchange of PSS and SSS in Rel-8 and Rel-9 and Rel-10, to avoid Rel- 8 and Rel-9 and Rel-10UE search this carrier wave, can ensure that the resident UE to this NCT carrier wave can be with discriminatory carrier class simultaneously Type (for NCT carrier wave or Rel-8/9/10 carrier wave) is i.e.:

In last OFDM symbol of frame structure Class1 (FDD): PSS time slot 0 in a radio frame and time slot 10 Transmission, the penultimate OFDM symbol of SSS time slot 0 in a radio frame and time slot 10 is transmitted；Or, SSS is one Transmit on time slot 0 in individual radio frames and last OFDM symbol of time slot 10, PSS time slot 0 He in a radio frame Transmit in the penultimate OFDM symbol of time slot 10；

3rd OFDM symbol of frame structure type 2 (TDD): PSS subframe 1 in a radio frame and subframe 6 is uploaded Defeated, last OFDM symbol of SSS time slot 1 in a radio frame and time slot 11 is transmitted；Or, SSS is a nothing Transmit in subframe 1 in line frame and the 3rd OFDM symbol of subframe 6, PSS time slot 1 in a radio frame and time slot 11 Transmit in last OFDM symbol；

When described frequency domain position is B:

Frame structure Class1 and frame structure type 2 are arranged different synchronous transmission of signal time-domain positions, i.e. different subframes or Time slot and OFDM symbol, it is also possible to arrange identical time-domain position, the most identical subframe or time slot and OFDM symbol；

It is preferred that do not change the relative position of PSS with SSS defined in Rel-8 with Rel-9 and Rel-10, it may be assumed that

Frame structure Class1: PSS and SSS is transmitted in adjacent OFDM symbol, and SSS transmitted before PSS；Example As: agreement,

Transmitting in method A:SSS the 1st OFDM symbol in subframe 1 and subframe 6, PSS is in subframe 1 and subframe 6 Transmit in 2nd OFDM symbol, or,

Transmit in method B:SSS the 1st OFDM symbol in subframe 0 and 5, the PSS the 2nd OFDM in subframe 0 and 5 Transmit on symbol, or,

Transmit in method C:SSS the 2nd OFDM symbol in subframe 0 and 5, the PSS the 3rd OFDM in subframe 0 and 5 Transmit on symbol, or,

Transmit in method D:SSS the 3rd OFDM symbol in subframe 0 and 5, the PSS the 4th OFDM in subframe 0 and 5 Transmit on symbol；

Wherein, synchronous transmission of signal subframe does not exist tracking downlink reference signal (such as at antenna port 0 when determining On CRS with 5ms as periodic transfer) time, i.e. arranged synchronous transmission of signal subframe and tracking downlink reference signal transmission There is not the transmission of tracking downlink reference signal in frame difference or NCT carrier wave, said method A, B, C, D can use, otherwise, I.e. when synchronous transmission of signal subframe there may be tracking downlink reference signal, only it is suitable for said method C.

For frame structure type 2:PSS and two OFDM symbol of SSS midfeather, and SSS transmitted before PSS；Such as: Agreement,

Method E: only to special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe under conventional CP Configuration 4, special subframe configuration 6, special subframe configuration 7 and special subframe configure 8 agreement: SSS the 2nd in subframe 1 and subframe 6 Transmit in individual OFDM symbol, the PSS the 5th OFDM symbol in subframe 1 and subframe 6 is transmitted, or, SSS is at subframe 1 and son Transmit in the 5th OFDM symbol in frame 6, the PSS the 8th OFDM symbol in subframe 1 and subframe 6 transmitted,；Under extension CP Only to special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 5 and special subframe configuration 6 about Fixed: to transmit in the SSS the 1st OFDM symbol in subframe 1 and subframe 6, the PSS the 4th OFDM symbol in subframe 1 and subframe 6 Transmission on number, or, the SSS the 4th OFDM symbol in subframe 1 and subframe 6 is transmitted, PSS is in subframe 1 and subframe 6 Transmit in 7th OFDM symbol；Or,

Method F: under conventional CP, all special subframes are configured, SSS the 3rd OFDM of the inverse in subframe 0 and subframe 5 Transmit on symbol, the PSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted；Under extension CP, all special subframes are joined Put, the SSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted, the PSS the 4th OFDM symbol in subframe 1 and subframe 6 Transmission on number；Or,

Method G: under conventional CP and extension CP, SSS the 3rd OFDM symbol of the inverse in subframe 0 and subframe 5 is transmitted, Transmit in the PSS the 1st OFDM symbol in subframe 1 and subframe 6；

Wherein, preferably, there is not tracking during said method E, F, G are only applicable to synchronous transmission of signal subframe and use descending ginseng Examine the situation of signal (such as on antenna port 0 CRS) with 5ms as periodic transfer, be i.e. on NCT carrier wave, arrange synchronizing signal Transmission subframe and tracking downlink reference signal transmission subframe is different or there is not tracking downlink reference signal on NCT carrier wave Transmission.

For frame structure type 2, at least one synchronizing signal is at DwPTS special subframe (i.e. descending-up switching point of 10ms TDD uplink/downlink configuration in subframe 1, or 5ms descending-configuration of the TDD uplink/downlink of up switching point in subframe 1 and son Frame 6) middle transmission；The synchronous transmission of signal time-domain position different to the special subframe agreement under different special subframe configurations, such as Available OFDM symbol numbering set under configuring according to the following each special subframe be given, selects an OFDM symbol as this The symbol of synchronous signal transmission in the lower DwPTS of special subframe configuration；Or, it is also possible to all special subframes configure under special Sub-frame configuration/arrange identical synchronous transmission of signal time-domain position, such as total can use under each special subframe configures OFDM symbol set select an OFDM symbol as the symbol of synchronous signal transmission in the lower DwPTS of all special subframes configuration Number；

It is preferred that transmit in the 1st OFDM symbol that PSS is in subframe 1 and subframe 6, SSS is in subframe 1 and subframe 6 Transmit in 2nd OFDM symbol, or, the SSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted, PSS is in subframe 1 Transmit with in the 2nd OFDM symbol in subframe 6；

For conventional subframe and special subframe, conventional CP and extension CP can be arranged different synchronous transmission of signals respectively Time-domain position, selects OFDM symbol to be used for transmitting synchronization in the available OFDM symbol set under conventional CP and extension CP the most respectively Signal；Or, it is possible to the synchronous transmission of signal time-domain position identical with extension CP agreement to conventional CP, i.e. in conventional CP and extension Available OFDM symbol set total under CP select OFDM symbol for synchronous signal transmission；

The described OFDM symbol that can be used for synchronous signal transmission, maps the OFDM symbol at place for non-DRS；

Described total available OFDM set, including: there is the OFDM symbol of identical numbering, or have identical relative The OFDM symbol (being the most all the kth 1 in subframe or 2 OFDM symbol of kth reciprocal) of transmission location；

It is preferred that in UE side, also include: when UE exists downlink data reception, UE receives downlink data based on DRS, its Described in downlink data in the RB at its transmission place for the resource (RE) of synchronous signal transmission with for transmitting the resource of DRS (RE) the upper transmission of the resource (RE) beyond；Above-mentioned downlink data includes being carried on PBCH, PHICH, PCFICH, PDSCH, PDCCH With one or more combinations in e-PDCCH (enhanced-PDCCH, i.e. at the enhancing PDCCH of data area transmission)；Especially , if there is PBCH transmission in present sub-frame, then other downlink datas (such as PDSCH transmission) need to be mapped in downlink data biography In defeated distributed RB for synchronous signal transmission, DRS and PBCH resource (RE) beyond resource (RE).

Correspondingly, see Fig. 9, in base station side, a kind of signaling method that the embodiment of the present invention provides, including:

S201, base station determine time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, described carrier wave The upper time-domain resource for synchronous signal transmission is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/ Or on described carrier wave on frequency domain resource and this carrier wave of synchronous signal transmission for transmitting the frequency domain money of downlink reference signal Source is different；

S202, base station send in the time-domain resource and frequency domain resource of synchronous signal transmission on described carrier wave and synchronize letter Number.

It is preferred that described time-domain resource particularly as follows:

Such as, signaling method includes:

Step one: determine time domain and/or the frequency domain position at synchronous transmission of signal place on NCT, described time domain and frequency domain position It is set to the position of row reference signal transmission in the absence of subscriber equipment is made an appointment, and described synchronous transmission of signal institute with base station Subframe in or frequency domain position on there is not tracking downlink reference signal and transmit；

Step 2: determining transmission subframe and the frequency domain resource of tracking downlink reference signal on NCT carrier wave, described subframe is not For synchronous transmission of signal place subframe, and/or described frequency domain resource does not include the frequency domain position at synchronous transmission of signal place；

Step 3: synchronizing signal described in the time-frequency domain location transmission at described synchronous transmission of signal place, in described tracking With the transmission subframe of downlink reference signal is transmitted described tracking downlink reference signal.

For transmitting in frame structure Class1: the SSS the 1st OFDM symbol in subframe 1 and subframe 6, PSS is subframe 1 He Transmit in the 2nd OFDM symbol in subframe 6；Or,

It is preferred that described tracking downlink reference signal at least includes community own reference signal CRS.

It is preferred that described tracking downlink reference signal also includes one or more signals following:

Location reference signals PRS, channel state information reference signals CSI-RS.

It is preferred that described downlink reference signal at least includes user equipment specific reference signal DRS.

It is preferred that described downlink reference signal also includes one or more signals following:

Community own reference signal CRS, location reference signals PRS, channel state information reference signals CS1-RS.

It is preferred that the method also includes:

When there is downlink data and needing to send, based on DRS to sending downlink data, wherein said downlink data passes at it Defeated place RB is used for the transmitted over resources beyond the resource of synchronous signal transmission and DRS.

It is preferred that the carrier wave that described carrier wave is new carrier type..

It is preferred that described tracking downlink reference signal also includes: location reference signals PRS and/or channel condition information Reference signal CSI-RS.

The transmission subframe of described tracking downlink reference signal and/or frequency domain resource are base station and subscriber equipment is made an appointment 's；Or,

High-level signaling or PDCCH signaling are passed through in base station, the configuration of tracking downlink reference signal described in notifying user equipment Information, described configuration information at least include for indicate or obtain described tracking downlink reference signal transmission subframe and/or The information of frequency domain resource；

If there is also downlink data transmission in the subframe at synchronous transmission of signal place, then base station can in the burst simultaneously Synchronous signal transmission, DRS and downlink data, and by downlink data map in the burst its distribution RB in synchronizing signal and Transmit in the time-frequency domain resources beyond resource (RE) that DRS takies；Above-mentioned downlink data transmission include PBCH, PHICH, In PCFICH, PDSCH, PDCCH and e-PDCCH (enhanced-PDCCH, i.e. at the enhancing PDCCH of data area transmission) one Plant or the transmission of multiple down channel combination；Particularly, if there is PBCH transmission in present sub-frame, then other downlink datas pass Defeated (such as PDSCH transmission) need to be mapped in the RB that this downlink data transmission is distributed for synchronous signal transmission, DRS and In resource (RE) beyond the resource (RE) of PBCH.

The explanation of several specific embodiment is given below.

Embodiment 1: for frame structure Class1 or 2, arranges a kind of public synchronisation signal transmission method, is simultaneously suitable for The synchronous transmission of signal in conventional subframe under conventional CP and extension CP；Such as:

Situation 1: when configuration or agreement CRS transmission subframe different from synchronous transmission of signal subframe time, or configure or about Fixed CRS transmission subframe is identical with synchronous transmission of signal subframe, but the frequency domain resource of CRS configuration does not include synchronous transmission of signal institute Frequency domain resource time, such as, agreement synchronizing signal is transmitted in subframe 0 and 5, CRS configuration or be about scheduled on the son of non-subframe 0 and 5 Frame transmits, or CRS also configures or is about scheduled on subframe 0 and 5 transmission and is arranged in beyond the frequency domain of synchronous transmission of signal place Transmit on frequency domain (6 RB transmission between the most in systems):

When only supporting the DRS on antenna port 7～14 to transmit on NCT carrier wave: reducible be scheduled on numbering #0/1/2/3/6/7/ Even timeslots in the OFDM symbol of 8/9, or synchronous transmission of signal subframe and the 1/2/3/4th OFDM symbol of odd numbered slots In any two symbol on transmit, preferably, when need on NCT transmit legacy PDCCH (inherit PDCCH, i.e. refer to Rel- PDCCH in the system of version before 11, such as the PDCCH in Rel-8, Rel-9, Rel-10 system, this PDCCH is under one Control area transmission in row subframe, front 1～4 OFDM symbol that control area is generally in a subframe) time, about it is scheduled on volume Number it is the OFDM symbol of #6/7/8/9, or the 1/2/3/4th OFDM symbol of the odd numbered slots in synchronous transmission of signal subframe In any two symbol on transmit；

When supporting the DRS on antenna port 5,7～14 to transmit on NCT carrier wave simultaneously: reducible be scheduled on numbering #0/1/2/8 OFDM symbol, or the 1/2/3rd OFDM symbol of the even timeslots in synchronous transmission of signal subframe and odd numbered slots Transmit on any two symbol in 1/4th OFDM symbol, preferably, when needing to transmit legacy PDCCH on NCT, about Transmit in 1/4th OFDM symbol of the odd numbered slots being scheduled in synchronous transmission of signal subframe；

Situation 2: when the CRS transmission subframe of configuration or agreement is identical with synchronous transmission of signal subframe, and CRS is arranged in and comprises When the frequency domain position of synchronous transmission of signal transmits:

When only supporting the DRS on antenna port 7～14 to transmit on NCT: the reducible OFDM symbol being scheduled on numbered #1/2/8 Number, or any two in even timeslots in synchronous transmission of signal subframe and the 2nd of odd numbered slots or the 3rd OFDM symbol Transmit on individual symbol, preferably, when needing to transmit legacy PDCCH on NCT, be about scheduled in synchronous transmission of signal subframe Transmit in 2/3rd OFDM symbol of odd numbered slots；

When supporting the DRS on antenna port 5,7～14 to transmit on NCT simultaneously: reducible be scheduled on numbered #1/2/8's Transmit in 2/3rd OFDM symbol of the even timeslots in OFDM symbol, or synchronous transmission of signal subframe, preferably, work as NCT On need transmit legacy PDCCH time, only support that the PDCCH of most 2 OFDM symbol transmits, be about scheduled on numbered #2/8's Transmit in OFDM symbol.

Embodiment 2: for frame structure type 2, arranges a kind of public synchronisation signal transmission method, simultaneously to conventional subframe The synchronous transmission of signal conventional subframe under conventional CP and extension CP, need to be for different special sons to special subframe Frame configuring condition agreement synchronisation signal transmission method；Wherein, the reducible one being scheduled in conventional subframe in transmission PSS and SSS is same Step signal, such as SSS, another kind of synchronizing signal, such as PSS, transmission in special subframe DwPTS (subframe 1 and subframe 6)；Example As:

Situation 1: when configuration or agreement CRS transmission subframe different from synchronous transmission of signal subframe time, or configure or about Fixed CRS transmission subframe is identical with synchronous transmission of signal subframe, but CRS is arranged in beyond the frequency domain position of synchronous transmission of signal During frequency-domain transmission, such as, agreement SSS transmits in subframe 0 and 5, and PSS transmits in subframe 1 and subframe 6, or, PSS is at son for agreement Frame 0 and 5 transmits, and SSS transmits in subframe 1 and subframe 6, and CRS is arranged in addition to subframe 0, subframe 5, subframe 1 and subframe 6 Subframe is transmitted, or CRS is arranged in subframe 0, subframe 5, subframe 1 and subframe 6 and transmits and be arranged in synchronous transmission of signal place Transmit on frequency domain beyond frequency domain (6 RB transmission between the most in systems):

When only supporting the DRS on antenna port 7～14 to transmit on NCT:

The synchronizing signal (such as SSS) of transmission in conventional subframe: can be used in respective conditions passes in above-described embodiment 1 Transmit in any one OFDM symbol in the OFDM symbol of defeated synchronizing signal；

The synchronizing signal (such as PSS) of transmission in special subframe, under conventional CP:

Special subframe configuration 0 and special subframe configuration 5: reducible be scheduled on the OFDM of numbered #0/1/2 in subframe 1 and subframe 6 Transmit on any 1 symbol in the 1/2/3rd OFDM symbol in symbol, or subframe 1 and subframe 6, preferably, work as NCT On when needing to transmit legacy PDCCH, be about scheduled on the OFDM symbol of numbered #2 in subframe 1 and subframe 6, or subframe 1 and son Transmit in the 3rd OFDM symbol in frame 6；

Special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 4, special subframe configuration 6, special subframe configuration 7 and special subframe configuration 8: the reducible OFDM symbol being scheduled on numbered #0/1/4/7/8 in subframe 1 and subframe 6 Transmit on any 1 symbol in number, preferably, when needing to transmit legacy PDCCH on NCT, be about scheduled on subframe 1 and son Frame 6 transmits on any 1 symbol of the OFDM symbol of numbered #4/7/8；

The synchronizing signal (such as PSS) of transmission in special subframe, under extension CP:

Special subframe configuration 0 and special subframe configuration 4: reducible be scheduled on the OFDM of numbered #0/1/2 in subframe 1 and subframe 6 Transmit on any 1 symbol in the 1/2/3rd OFDM symbol in symbol, or subframe 1 and subframe 6, preferably, work as NCT On when needing to transmit legacy PDCCH, be about scheduled on the OFDM symbol of numbered #2 in subframe 1 and subframe 6, or subframe 1 and son Transmit in the 3rd OFDM symbol in frame 6；

Special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 5 and special subframe configuration 6: transmit on reducible any 1 symbol being scheduled in subframe 1 and subframe 6 in the OFDM symbol of numbered #0/1/2/3/6, more excellent , when needing to transmit legacy PDCCH on NCT, about it is scheduled in subframe 1 and subframe 6 in the OFDM symbol of numbered #2/3/6 Any 1 symbol on transmit；

When supporting the DRS on antenna port 5,7～14 to transmit on NCT simultaneously:

The synchronizing signal (such as PSS) of transmission in special subframe, the most only supports the situation of port 7～14；

Situation 2: when the CRS transmission subframe of configuration or agreement is identical with synchronous transmission of signal subframe, and CRS is arranged in synchronization When the frequency domain position of signal transmission transmits:

When only supporting the DRS on antenna port 7～14 to transmit on NCT:

Special subframe configuration 0 and special subframe configuration 5: the OFDM of the reducible numbered #1/2 being scheduled in subframe 1 and subframe 6 Transmit on any 1 symbol in symbol, or the 2/3rd OFDM symbol of subframe 1 and subframe 6, preferably, when needing on NCT During legacy PDCCH to be transmitted, about it is scheduled on the OFDM symbol of numbered #2 in subframe 1 and subframe 6, or subframe 1 and subframe 6 The 3rd OFDM symbol on transmit；

Special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 4, special subframe configuration 6, special subframe configuration 7 and special subframe configuration 8: in the OFDM symbol of the reducible numbered #1/8 being scheduled in subframe 1 and subframe 6 Any 1 symbol on transmit, preferably, when need on NCT transmit legacy PDCCH time, be about scheduled in subframe 1 and subframe 6 Transmit in the OFDM symbol of numbered #8；

The synchronizing signal (such as PSS) of transmission in special subframe, extension CP:

Special subframe configuration 0, special subframe configuration 1 and special subframe configuration 4: the reducible volume being scheduled in subframe 1 and subframe 6 Number it is the OFDM symbol of #1/2, or transmits on any 1 symbol in the 2/3rd OFDM symbol of subframe 1 and subframe 6, relatively Excellent, when needing to transmit legacy PDCCH on NCT, about it is scheduled on the OFDM symbol of numbered #2 in subframe 1 and subframe 6, or Transmit in 3rd OFDM symbol of person's subframe 1 and subframe 6；

Special subframe configuration 2, special subframe configuration 3, special subframe configuration 5 and special subframe configuration 6: reducible be scheduled on subframe 1 and subframe 6 in numbered #1/2/7 OFDM symbol in any 1 symbol on transmit, preferably, when need on NCT pass During defeated legacy PDCCH, any 1 symbol being about scheduled in subframe 1 and subframe 6 in the OFDM symbol of numbered #2/7 is uploaded Defeated；

The synchronizing signal (such as PSS) of transmission in special subframe, conventional CP: the most only support port 7～14 situation；

Special subframe configuration 0, special subframe configuration 1, special subframe configuration 2, special subframe configuration 4 and special subframe configuration 5: the OFDM symbol of the reducible numbered #1/2 being scheduled in subframe 1 and subframe 6, or subframe 1 and the 2/3rd OFDM of subframe 6 Transmit on any 1 symbol in symbol, preferably, when needing to transmit legacy PDCCH on NCT, be about scheduled on subframe 1 He Transmit in the OFDM symbol of numbered #2 in subframe 6, or the 3rd OFDM symbol of subframe 1 and subframe 6；

Special subframe configuration 3 and special subframe configuration 6: the reducible numbered #1/2/8's being scheduled in subframe 1 and subframe 6 Transmit on any 1 symbol in OFDM symbol, preferably, when needing to transmit legacy PDCCH on NCT, be about scheduled on subframe 1 and subframe 6 in numbered #2/8 OFDM symbol in any 1 symbol on transmit；

Embodiment 3: for frame structure type 2, is about scheduled in conventional subframe a kind of signal in transmission PSS and SSS, such as SSS, another kind of synchronizing signal, such as PSS, at special subframe DwPTS (i.e. subframe 1 and subframe 6, descending-up switching point of 10ms TDD uplink/downlink configuration in, subframe 1 comprise DwPTS, 5ms descending-configuration of the TDD uplink/downlink of up switching point in, subframe 1 DwPTS is all comprised with subframe 6) middle transmission, on the contrary also may be used；Respectively to conventional subframe and special subframe comprising and not comprising CRS The situation of transmission arranges a kind of public synchronisation signal transmission method, such as:

When only supporting the DRS on antenna port 7～14 to transmit on NCT:

The the 2nd or the 3rd OFDM symbol in a kind of synchronizing signal time slot 1 in a radio frame and time slot 11 is uploaded Defeated；

Another kind of synchronizing signal is transmitted in special subframe DwPTS:

Special subframe configuration 0 and special subframe configuration 4 (only extension CP under)/5: subframe 1 and the 3rd of subframe 6 OFDM symbol is transmitted；Special subframe configuration 1/2/3/4 (only conventional CP under)/6/7/8: when the 2nd of subframe 1 and subframe 6 2nd OFDM symbol transmission of gap is (for the OFDM symbol of numbering #8 under i.e. conventional CP, for the OFDM symbol of numbering #7 under extension CP Number)；Or,

Special subframe configuration 0 and special subframe configuration 4 (only under extension CP)/5/7 (only under extension CP)/8 (are only being expanded Under exhibition CP): in subframe 1 and the 3rd OFDM symbol transmission of subframe 6；Special subframe configuration 1/2/3/4 (only under conventional CP)/ 6/7 (only under conventional CP)/8 (only under conventional CP): the 2nd OFDM symbol at subframe 1 and the 2nd time slot of subframe 6 passes Defeated；

(i.e. conventional CP is transmitted in the OFDM symbol of numbering #8 in a kind of synchronizing signal subframe 0 and 5 in a radio frame Under, in the 2nd OFDM symbol transmission of time slot 1 and 11, under extension CP, the 3rd the OFDM symbol transmission at time slot 1 and 11)；

(i.e. subframe 1 and subframe 6,10ms is descending-TDD of up switching point at special subframe DwPTS for another kind of synchronizing signal In uplink/downlink configuration, subframe 1 comprise DwPTS, 5ms descending-configuration of the TDD uplink/downlink of up switching point in, subframe 1 and subframe 6 all comprise DwPTS) middle transmission:

Special subframe configuration 0 and special subframe configuration 4 (only under extension CP)/5: at subframe 1 and the 3rd OFDM of subframe 6 Symbol transmission；Special subframe configuration 1/2/3/4/6 under conventional CP and special subframe configuration 7/8 that is conventional and that extend under CP: In subframe 1 and the 2nd OFDM symbol transmission of the 2nd time slot of subframe 6；Special subframe configuration 1/2/3/6 under extension CP: 3rd OFDM symbol transmission of the 2nd time slot of subframe 1 and subframe 6；

Or, special subframe configuration 0 and special subframe configuration 4 (only under extension CP)/5/7 (only under extension CP)/8 (are only expanded Under exhibition CP): in subframe 1 and the 3rd OFDM symbol transmission of subframe 6；Special subframe configuration 1 under conventional CP, special subframe are joined Put 2, special subframe configuration 3, special subframe configuration 4, special subframe configuration 6, special subframe configuration 7 and special subframe configuration 8: 2nd OFDM symbol transmission of the 2nd time slot of subframe 1 and subframe 6；Special subframe configuration 1/2/3/6 under extension CP: at son 3rd OFDM symbol transmission of the 2nd time slot of frame 1 and subframe 6.

Embodiment 4: for frame structure Class1 and 2, or only to frame structure type 2, PSS and SSS is in subframe 1 for agreement Transmitting with in the 1st and 2 OFDM symbol in subframe 6, PSS can transmit in first or second OFDM symbol；NCT need to be ensured On CRS transmission subframe be subframe 1 and subframe 6, or when CRS transmit subframe be subframe 1 and subframe 6 time, need to ensure that CRS passes Defeated frequency domain resource does not include the frequency domain resource (not transmitting in 6 RB of NCT carrier frequency band central authorities) of synchronous transmission of signal；Should Scheme can support that the DRS on antenna port 5,7～14, the PRS on antenna port 6 and synchronizing signal are same in same subframe Time transmission；

Preferably, for frame structure Class1 and 2, time domain should be selected as far as possible adjacent or as close possible to available OFDM symbol is for 2 kinds of synchronizing signals of transmission, to improve the detection performance of synchronizing signal；

If it should be noted that consider PRS transmission in above-described embodiment 1～4 simultaneously, (NCT is upper above-mentioned situation 1 He Situation 2 is supported the PRS on antenna port 6 transmits simultaneously) time, when the transmission of PRS is with CRS in situation 1, in different condition Can arrange down to transmit the OFDM symbol of PSS and SSS ibid；When the transmission of PRS is with CRS in situation 2, above-mentioned different condition Can arrange further down the OFDM symbol of transmission PSS and SSS can not comprise numbered #3/4/5/6/7/8/9/10/11/ The OFDM symbol of 12/13, the most now can be by the only possible OFDM symbol for numbering #0/1/2 of OFDM symbol and above-mentioned different condition Under the total symbol of available OFDM symbol.

The following OFDM symbol set for can be used for synchronous signal transmission under different scenes, OFDM symbol is numbered from the beginning of 0；

When only supporting the DRS on antenna port 7～14 to transmit on NCT carrier wave:

When CRS transmission subframe is different from synchronous transmission of signal subframe:

In conventional subframe, conventional CP: the OFDM symbol of numbered #0/1/2/3/4/7/8/9/10/11；

In conventional subframe, extend CP: the OFDM symbol of numbered #0/1/2/3/6/7/8/9；

In special subframe, conventional CP:

Special subframe configuration 0: the OFDM symbol of numbered #0/1/2

Special subframe configuration 1/6: the OFDM symbol of numbered #0/1/4/7/8；

Special subframe configuration 2/7: the OFDM symbol of numbered #0/1/4/7/8/9；

Special subframe configuration 3/8: the OFDM symbol of numbered #0/1/4/5/6/7/8；

Special subframe configuration 4: the OFDM symbol of numbered #0/1/4/5/6/7/8/11；

Special subframe configuration 5: the OFDM symbol of numbered #0/1/2；

In special subframe, extension CP:

Special subframe configuration 0 and special subframe configuration 4: the OFDM symbol of numbered #0/1/2

Special subframe configuration 1: the OFDM symbol of numbered #0/1/2/3/6；

Special subframe configuration 2 and special subframe configuration 5: the OFDM symbol of numbered #0/1/2/3/6/7；

Special subframe configuration 3: the OFDM symbol of numbered #0/1/2/3/6/7/8/9；

Special subframe configuration 6: the OFDM symbol of numbered #0/1/2/3/6/7/8；

When CRS transmission subframe is identical with synchronous transmission of signal subframe:

In conventional subframe, conventional CP: the OFDM symbol of numbered #1/2/3/8/9/10；

In conventional subframe, extend CP: the OFDM symbol of numbered #1/2/7/8；

In special subframe, conventional CP:

Special subframe configuration 0: the OFDM symbol of numbered #1/2

Special subframe configuration 1 and special subframe configuration 6: the OFDM symbol of numbered #/1/8；

Special subframe configuration 2 and special subframe configuration 7: the OFDM symbol of numbered #1/8/9；

Special subframe configuration 3 and special subframe configuration 4 and special subframe configuration 8: the OFDM symbol of numbered #1/5/6/8；

Special subframe configuration 5: the OFDM symbol of numbered #1/2；

In special subframe, extension CP:

Special subframe configuration 0, special subframe configuration 1 and special subframe configuration 4: the OFDM symbol of numbered #1/2

Special subframe configuration 2 and special subframe configuration 5: the OFDM symbol of numbered #1/2/7；

Special subframe configuration 3 and special subframe configuration 6: the OFDM symbol of numbered #1/2/7/8；

When supporting the DRS transmission on antenna port 5 and antenna port 7～14 on NCT carrier wave:

In conventional subframe, conventional CP: the OFDM symbol of numbered #0/1/2/4/7/8/10/11；

In conventional subframe, extend CP: the OFDM symbol of numbered #0/1/2/3/6/8/9；#0/1/2/3/6/7/8/9

In special subframe, conventional CP:

Special subframe configuration 0: the OFDM symbol of numbered #0/1/2

Special subframe configuration 1 and special subframe configuration 2 and special subframe configuration 6 and special subframe configuration 7: numbered #0/ The OFDM symbol of 1/4/7/8；

Special subframe configuration 3 and special subframe configuration 8: the OFDM symbol of numbered #0/1/4/5/7/8；

Special subframe configuration 4: the OFDM symbol of numbered #0/1/4/5/7/8/11；

Special subframe configuration 5: the OFDM symbol of numbered #0/1/2；

In special subframe, extension CP:

The OFDM symbol of special subframe configuration 1 and special subframe configuration 2 and special subframe configuration 5: numbered #0/1/2/3/6 Number；

Special subframe configuration 3: the OFDM symbol of numbered #0/1/2/3/6/8/9；

Special subframe configuration 6: the OFDM symbol of numbered #0/1/2/3/6/8；

In conventional subframe, conventional CP: the OFDM symbol of numbered #1/2/8/10；

In conventional subframe, extend CP: the OFDM symbol of numbered #1/2/8；

In special subframe, conventional CP:

Special subframe configuration 0: the OFDM symbol of numbered #1/2

Special subframe configuration 1 and special subframe configuration 2 and special subframe configuration 6 and special subframe configuration 7: numbered #/1/ The OFDM symbol of 8；

Special subframe configuration 3 and special subframe configuration 4 and special subframe configuration 8: the OFDM symbol of numbered #1/5/8；

Special subframe configuration 5: the OFDM symbol of numbered #1/2；

In special subframe, extension CP:

Special subframe configuration 0, special subframe configuration 1, special subframe configuration 2, special subframe configuration 4 and special subframe configuration 5: the OFDM symbol of numbered #1/2

Special subframe configuration 3 and special subframe configuration 6: the OFDM symbol of numbered #1/2/8；

See Figure 10, in UE side, a kind of signal receiving device that the embodiment of the present invention provides, including:

Synchronizing signal resource location determines unit 11, for determine on carrier wave for synchronous signal transmission time-domain resource and Frequency domain resource, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is used for transmitting descending reference on this carrier wave The time-domain resource of signal is different, and/or the frequency domain resource being used for synchronous signal transmission on described carrier wave is used for passing on this carrier wave The frequency domain resource of defeated downlink reference signal is different；

Synchronous signal detection unit 12, for according to time-domain resource and the frequency domain being used for synchronous signal transmission on described carrier wave Resource, detects the synchronizing signal on described carrier wave.

It is preferred that described time-domain resource particularly as follows:

62 or 72 in addition to the subcarrier at described downlink reference signal transmission place of described carrier frequency band central authorities Subcarrier；Or

Continuous 62 or 72 subcarriers of described carrier frequency band central authorities.

It is preferred that this device also includes:

Downlink data receives unit 13, during for receiving when the downlink data that there is UE, receives downlink data based on DRS, Wherein said downlink data is used for the transmitted over resources beyond the resource of synchronous signal transmission and DRS in its transmission place RB.

It is preferred that the carrier wave that described carrier wave is new carrier type.

Seeing Figure 11, in base station side, a kind of sender unit that the embodiment of the present invention provides includes:

Synchronizing signal resource location determines unit 21, for determine on carrier wave for synchronous signal transmission time-domain resource and Frequency domain resource, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is used for transmitting descending reference on this carrier wave The time-domain resource of signal is different, and/or the frequency domain resource being used for synchronous signal transmission on described carrier wave is used for passing on this carrier wave The frequency domain resource of defeated downlink reference signal is different；

Synchronizing signal transmitting element 22, for being used for time-domain resource and the frequency domain money of synchronous signal transmission on described carrier wave Synchronizing signal is sent on source.

It is preferred that described time-domain resource particularly as follows:

62 or 72 in addition to the subcarrier at described downlink reference signal transmission place of described carrier frequency band central authorities Subcarrier；Or,

It is preferred that this device also includes:

Downlink data transmitting element 23, for when there is downlink data and needing to send, sending downlink data based on DRS, The wherein said downlink data resource beyond the resource of synchronous signal transmission and DRS in its transmission place RB is uploaded Defeated.

In sum, the embodiment of the present invention provides the time-frequency domain Position Design of synchronous transmission of signal on carrier wave and limits The mapping relations of tracking downlink reference signal and synchronizing signal, synchronous transmission of signal mode on carrier wave and follow the tracks of with under The transmission means of row reference signal.Specifically, on carrier wave (especially NCT carrier wave), agreement synchronizing signal not with descending ginseng Examine time domain and/or the frequency domain position transmission of signal overlap, and configuration or agreement tracking reference signal are not having synchronizing signal to pass Transmission or do not comprise the frequency domain resource at synchronous transmission of signal place in frequency-domain transmission resource in defeated subframe, it is to avoid synchronize The reference signals such as signal and CRS/DRS are overlapping, thus on the basis of ensureing NCT carrier wave normal synchronized, can join with normal transmission Examine signal, it is ensured that tracking performance, the down transmission efficiency of raising NCT carrier wave.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code The shape of the upper computer program implemented of usable storage medium (including but not limited to disk memory and optical memory etc.) Formula.

The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.

These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or The function specified in multiple square frames.

These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one The step of the function specified in individual square frame or multiple square frame.

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

Claims

1. a signal acceptance method, it is characterised in that the method includes:

User equipment (UE) determines time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, on described carrier wave Different for transmitting the time-domain resource of downlink reference signal from this carrier wave for the time-domain resource of synchronous signal transmission, and/or On described carrier wave, the frequency domain resource for synchronous signal transmission is used for transmitting the frequency domain resource of downlink reference signal on this carrier wave Different；

Described UE according on described carrier wave for the time-domain resource of synchronous signal transmission and frequency domain resource, detect on described carrier wave Synchronizing signal；

Wherein, the time-domain resource described carrier wave being used for synchronous signal transmission is:

For frame structure Class1: transmit in the OFDM symbol that master sync signal PSS and auxiliary synchronous signals SSS is adjacent in time domain, And the OFDM symbol transmission at the OFDM symbol at SSS place advanced PSS place in time domain；Wherein, SSS is in subframe 1 and subframe 6 The 1st OFDM symbol on transmit, in the PSS the 2nd OFDM symbol in subframe 1 and subframe 6 transmit；Or, SSS is in subframe 0 and subframe 5 in the 1st OFDM symbol on transmit, in the PSS the 2nd OFDM symbol in subframe 0 and subframe 5 transmit；Or Person, the SSS the 2nd OFDM symbol in subframe 0 and subframe 5 is transmitted, the PSS the 3rd OFDM symbol in subframe 0 and subframe 5 Transmission on number；Or, the SSS the 3rd OFDM symbol in subframe 0 and subframe 5 is transmitted, PSS is in subframe 0 and subframe 5 Transmit in 4th OFDM symbol；And/or,

For being spaced two in time domain between OFDM symbol and the OFDM symbol at SSS place at frame structure type 2:PSS place OFDM symbol, and the OFDM symbol transmission at the OFDM symbol at SSS place advanced PSS place in time domain；Wherein, in regular circulation Under prefix CP, for special subframe configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 4, special subframe Transmit in configuration 6, special subframe configuration 7 and the special subframe configuration 8:SSS the 2nd OFDM symbol in subframe 1 and subframe 6, Transmit in the PSS the 5th OFDM symbol in subframe 1 and subframe 6, or, the SSS the 5th OFDM in subframe 1 and subframe 6 Transmit on symbol, the PSS the 8th OFDM symbol in subframe 1 and subframe 6 is transmitted；Or, under extension CP, for special Sub-frame configuration 1, special subframe configuration 2, special subframe configuration 3, special subframe configuration 5 and special subframe configuration 6:SSS are in subframe 1 Transmit with in the 1st OFDM symbol in subframe 6, the PSS the 4th OFDM symbol in subframe 1 and subframe 6 is transmitted, or, Transmit in the SSS the 4th OFDM symbol in subframe 1 and subframe 6, in the PSS the 7th OFDM symbol in subframe 1 and subframe 6 Transmission；Or, under conventional CP, SSS the 3rd OFDM symbol of the inverse in subframe 0 and subframe 5 being transmitted, PSS is in subframe 1 Transmit with in the 1st OFDM symbol in subframe 6；Or, under extension CP, the SSS the 1st OFDM in subframe 1 and subframe 6 Transmit on symbol, the PSS the 4th OFDM symbol in subframe 1 and subframe 6 is transmitted；

Or, on described carrier wave, the time-domain resource for synchronous signal transmission is:

Transmit in the PSS the 1st OFDM symbol in subframe 1 and subframe 6, the SSS the 2nd OFDM symbol in subframe 1 and subframe 6 Transmission on number；Or, the SSS the 1st OFDM symbol in subframe 1 and subframe 6 is transmitted, PSS is in subframe 1 and subframe 6 Transmit in 2nd OFDM symbol.

Method the most according to claim 1, it is characterised in that described time-domain resource particularly as follows:

Orthogonal frequency division multiplex OFDM symbol in the subframe at signal transmission place and this subframe；Or signal transmission place time OFDM symbol in gap and this time slot；Or the OFDM in the signal transmission subframe at place and time slot and this subframe and time slot Symbol；

Method the most according to claim 1, it is characterised in that for the time-domain resource of synchronous signal transmission on described carrier wave Different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or for synchronous signal transmission on described carrier wave Frequency domain resource different for transmitting the frequency domain resource of downlink reference signal from this carrier wave, including:

Subframe for synchronous signal transmission is not used in transmission tracking downlink reference signal, and/or for synchronous signal transmission Frequency domain resource be not used in transmission tracking downlink reference signal.

4. according to the method described in claim 1 or 3, it is characterised in that for the frequency domain of synchronous signal transmission on described carrier wave Resource is:

62 or 72 sons in addition to the subcarrier at described downlink reference signal transmission place of the frequency band central authorities of described carrier wave Carrier wave；Or

Method the most according to claim 3, it is characterised in that described tracking downlink reference signal at least includes that community is special Belong to reference signal CRS.

6. according to the method described in claims 1 to 3 any one, it is characterised in that described downlink reference signal at least includes User equipment specific reference signal DRS.

Method the most according to claim 6, it is characterised in that the method also includes:

When UE exists downlink data reception, UE receives downlink data based on DRS, and wherein said downlink data transmits place at it RB is used for the transmitted over resources beyond the resource of synchronous signal transmission and DRS.

8. according to the method described in claims 1 to 3 any one, it is characterised in that described carrier wave is the load of new carrier type Ripple.

9. a signaling method, it is characterised in that the method includes:

Base station determines time-domain resource and the frequency domain resource on carrier wave for synchronous signal transmission, wherein, described carrier wave is used for passing The time-domain resource of defeated synchronizing signal is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or described load On ripple, the frequency domain resource for synchronous signal transmission is different for transmitting the frequency domain resource of downlink reference signal from this carrier wave；

Base station sends synchronizing signal on described carrier wave in the time-domain resource and frequency domain resource of synchronous signal transmission；

Method the most according to claim 9, it is characterised in that described time-domain resource particularly as follows:

11. methods according to claim 9, it is characterised in that for the time domain money of synchronous signal transmission on described carrier wave Source is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or is used on described carrier wave transmitting synchronization letter Number frequency domain resource different for transmitting the frequency domain resource of downlink reference signal from this carrier wave, including:

12. according to the method described in claim 9 or 11, it is characterised in that for the frequency of synchronous signal transmission on described carrier wave Territory resource is:

13. methods according to claim 11, it is characterised in that described tracking downlink reference signal at least includes community Own reference signal CRS.

14. according to the method described in claim 9～11 any one, it is characterised in that described downlink reference signal at least wraps Include user equipment specific reference signal DRS.

15. methods according to claim 14, it is characterised in that the method also includes:

When there is downlink data and needing to send, based on DRS to sending downlink data, wherein said downlink data transmits institute at it The transmitted over resources beyond the resource of synchronous signal transmission and DRS it is used in RB.

16. according to the method described in claim 9～11 any one, it is characterised in that described carrier wave is new carrier type Carrier wave.

17. 1 kinds of signal receiving devices, it is characterised in that this device includes:

Synchronizing signal resource location determines unit, for determining on carrier wave for the time-domain resource of synchronous signal transmission and frequency domain money Source, wherein, on described carrier wave, the time-domain resource for synchronous signal transmission is used for transmitting downlink reference signal on this carrier wave Time-domain resource is different, and/or is used for transmitting descending on described carrier wave on frequency domain resource and this carrier wave of synchronous signal transmission The frequency domain resource of reference signal is different；

Synchronous signal detection unit, is used for according to time-domain resource and the frequency domain resource being used for synchronous signal transmission on described carrier wave, Detect the synchronizing signal on described carrier wave；

18. devices according to claim 17, it is characterised in that described time-domain resource particularly as follows:

19. devices according to claim 17, it is characterised in that for the time domain money of synchronous signal transmission on described carrier wave Source is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or is used on described carrier wave transmitting synchronization letter Number frequency domain resource different for transmitting the frequency domain resource of downlink reference signal from this carrier wave, including:

20. according to the device described in claim 17 or 19, it is characterised in that for the frequency of synchronous signal transmission on described carrier wave Territory resource is:

62 or 72 sons in addition to the subcarrier at described downlink reference signal transmission place of described carrier frequency band central authorities carry Ripple；Or

21. devices according to claim 19, it is characterised in that described tracking downlink reference signal at least includes community Own reference signal CRS.

22. according to the device described in claim 17～19 any one, it is characterised in that described downlink reference signal at least wraps Include user equipment specific reference signal DRS.

23. devices according to claim 22, it is characterised in that this device also includes:

Downlink data receives unit, during for receiving when the downlink data that there is UE, receives downlink data, Qi Zhongsuo based on DRS State downlink data transmitted over resources in its transmission place RB beyond the resource of synchronous signal transmission and DRS.

24. according to the device described in claim 17～19 any one, it is characterised in that described carrier wave is new carrier type Carrier wave.

25. 1 kinds of sender units, it is characterised in that this device includes:

Synchronizing signal transmitting element, for sending out on described carrier wave in the time-domain resource and frequency domain resource of synchronous signal transmission Send synchronizing signal；

26. devices according to claim 25, it is characterised in that described time-domain resource particularly as follows:

27. devices according to claim 25, it is characterised in that for the time domain money of synchronous signal transmission on described carrier wave Source is different for transmitting the time-domain resource of downlink reference signal from this carrier wave, and/or is used on described carrier wave transmitting synchronization letter Number frequency domain resource different for transmitting the frequency domain resource of downlink reference signal from this carrier wave, including:

28. according to the device described in claim 25 or 27, it is characterised in that for the frequency of synchronous signal transmission on described carrier wave Territory resource is:

62 or 72 sons in addition to the subcarrier at described downlink reference signal transmission place of described carrier frequency band central authorities carry Ripple；Or,

29. devices according to claim 27, it is characterised in that described tracking downlink reference signal at least includes community Own reference signal CRS.

30. according to the device described in claim 25～27 any one, it is characterised in that described downlink reference signal at least wraps Include user equipment specific reference signal DRS.

31. devices according to claim 30, it is characterised in that this device also includes:

Downlink data transmitting element, for when there is downlink data and needing to send, sending downlink data, Qi Zhongsuo based on DRS State the downlink data transmitted over resources beyond the resource of synchronous signal transmission and DRS in its transmission place RB.

32. according to the device described in claim 25～27 any one, it is characterised in that described carrier wave is new carrier type Carrier wave.