CN103391179A

CN103391179A - Method and device for sending new carrier wave reference signals

Info

Publication number: CN103391179A
Application number: CN2012101441939A
Authority: CN
Inventors: 苟伟; 戴博; 夏树强; 左志松
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2013-11-13
Anticipated expiration: 2032-05-10
Also published as: CN103391179B; WO2014015699A1

Abstract

The invention provides a method and device for sending new carrier wave reference signals. The method includes the steps that when the DwPTS in special subframes of a new carrier wave occupies first three OFDM symbols of the special subframes, the reference signals are configurated in one or more OFDM symbols of the three OFDM symbols, the reference signals are sent through the special subframes, the configuration of the reference signals in the three OFDM symbols includes the steps that the reference signals are mapped to the one or more OFDM symbols of the three OFDM symbols in the time domain direction in one subframe, the reference signals mapped to the one or more OFDM symbols of the three OFDM symbols are kept in the same carrier wave in the frequency-domain direction, and the step that the reference signals are mapped at preset-number sub carrier wave intervals in the subframes from a preset sub carrier wave is kept. The method and device for sending the new carrier wave reference signals solve the problem that the three OFDM symbols in the prior art do not have the reference signals and improve the utilization efficiency of resources.

Description

New carrier reference signal sending method and device

Technical field

The present invention relates to the communications field, in particular to a kind of new carrier reference signal sending method and device.

Background technology

development along with Mobile Communication Industry, and to the continuous growth of mobile data services demand, speed and service quality (the Quality of service of people to mobile communication, referred to as Qos) requirement more and more higher, so before 3G (Third Generation) Moblie (3G) does not also have extensive commercialization, just started the research-and-development activity to next generation mobile communication system, wherein relatively be typically third generation partner program (3rd Generation partnership project, referred to as 3GPP) Long Term Evolution (the Long-Term Evolution that starts, referred to as LTE) project, the available maximum spectrum bandwidth of LTE system is 20MHz.Further evolution along with network, evolution LTE (Long-Term Evolution Advance, referred to as LTE-A) as the evolution system of LTE, spectral bandwidth up to 100MHz can be provided, support more flexible higher-quality communication, the LTE-A system possesses good backwards compatibility simultaneously.A plurality of component carriers (Component Carrier is arranged in the LTE-A system, referred to as CC), a LTE terminal can only be operated on the CC of some backward compatibility, and the stronger LTE-A terminal of ability can be transmitted simultaneously on a plurality of CC, the terminal that namely realizes LTE-A is transmitted and the reception data simultaneously in a plurality of component carriers, thereby reach the purpose that promotes bandwidth, this technology is called as the multi-carrier polymerizing technology.

Support the multi-carrier polymerizing technology in the LTE-A system, by multi-carrier polymerizing in the hope of reaching larger bandwidth for transmission data.Maximum 5 carrier waves of base station subordinate, these carrier waves are called as component carrier, are all the carrier waves with backwards compatibility, to support the UE work of early stage LTE version.Base station is that a UE can configure a plurality of component carriers, and to select wherein some or all of component carrier be that UE activates, and the component carrier after activation just can provide transfer of data for UE.

In the research of present stage, on the basis of multi-carrier polymerizing technology, the LTE R11 stage is for frequency spectrum resource utilization rate, network energy-saving, and the interference inhibition aspect between residential quarter has proposed new demand.In order to meet these demands, proposed at present new carrier wave (new carrier type), by means of carrier aggregation technology, applied, new carrier wave has a salient feature, do not need to consider backwards compatibility exactly when design, can apply more new technology therein.For example, be defined as for new carrier wave in LTE R11 at present, need and at least one compatible carrier wave counterpart application, do not configure cell specific reference signal (the Cell-specific reference signals of LTE R8 in new carrier wave, referred to as CRS), to avoid adjacent cell to disturb at the serious CRS of cell edge, particularly at the HetNet(heterogeneous network) CRS under scene between macrocell and Microcell disturbs.

The reference signal that is considered to configure in new carrier wave up to now has demodulated reference signal (Demodulation reference signals, referred to as DMRS, refer to UE-specifc reference signals in LTE, this reference signal is for demodulation), channel status measuring reference signals (Channel-State Information reference signals is referred to as CSI-RS), wherein DMRS and CSI-RS are respectively used to separate to be in harmonious proportion CSI and measure.Whether the synchronous reference signal of following the tracks of that is used for for discussing in new carrier wave, also be illustrated and can not be used for demodulation, and, for 5ms sends once, adopt the subband mode to send and also do not have at present conclusion.

in LTE for TDD mode (Time Division Duplex, TDD) there is a kind of special subframe, Fig. 1 has provided the frame structure of tdd mode, can find that wherein special subframe consists of 3 parts, be respectively descending pilot frequency time slot (Downlink Pilot Time Slot, referred to as DwPTS), protection time slot (Guard Period, referred to as GP) and uplink pilot time slot (Uplink Pilot Time Slot, referred to as UpPTS) 3 parts, wherein DwPTS according to the rules, can take front 3 Orthodoxy Frequency Division Multiplexs (Orthogonal Frequency Division Multiplexing in subframe, referred to as OFDM) symbol.And in the prior art, there is CRS to be sent out in front 3 the OFDM symbols of above-mentioned subframe.For the ease of follow-up description, here be described for the resource division in the subframe of LTE, in LTE, a sub-frame time length is 1ms, at short CP(Normal cyclic prefix) time comprise altogether 14 OFDM symbols, subframe is comprised of 12 sub-carrier waves.At long CP(Extended cyclic prefix) time comprise altogether 12 OFDM symbols, subframe is comprised of 12 sub-carrier waves.

By the analysis of the reference signal in new carrier wave, think the new carrier wave that has LTE now under tdd mode, when the DwPTS in special subframe took 3 OFDM symbols, there was following problem in new carrier wave:

The first, do not have reference signal to be configured in these 3 OFDM symbols;

The second,, if in these 3 OFDM symbols when control channel or data, can't utilize demodulation reference signal, there is the potential resource waste;

The 3rd, the CSI measurement in these 3 OFDM symbols does not have reference signal to use.

In the prior art, for example to send CRS at 3 above-mentioned OFDM symbols in compatible carrier wave, thus there are not 3 above-mentioned problems, but in new carrier wave, because one of characteristic of new carrier wave is exactly to delete CRS, so above-mentioned 3 problems are urgent problems.

Summary of the invention

When in the special subframe of new carrier wave, DwPTS takies 3 OFDM symbols, there is no the problem of reference signal in these 3 OFDM symbols, the invention provides a kind of new carrier reference signal sending method and device, to address the above problem at least.

According to an aspect of the present invention, a kind of new carrier reference signal sending method is provided, comprise: when DwPTS in the special subframe of new carrier wave takies front 3 OFDM symbols of this special subframe, configure reference signal in the one or more OFDM symbols in these 3 OFDM symbols; Send reference signal by above-mentioned special subframe; Wherein, in one or more OFDM symbols in these 3 OFDM symbols, the configuration reference signal comprises: in a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and carry out the mapping reference signal.

In a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier come the mapping reference signal comprise following one of at least:

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During short CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal.

During long CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped in above-mentioned 3 OFDM symbols the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal;

During long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in above-mentioned 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and carry out the mapping reference signal.

After by special subframe, sending reference signal, also comprise: the corresponding reference signal pattern of mode of notifying receiving terminal to adopt during the configuration reference signal in the one or more OFDM symbols in above-mentioned 3 OFDM symbols each time by high-level signaling.

Above-mentioned high-level signaling comprises: RRCConnectionReconfiguration message, wherein, RRCConnectionReconfiguration message comprises the parameter of describing the reference signal pattern in carrier wave.

The corresponding reference signal pattern of mode of notifying receiving terminal to adopt during the configuration reference signal in the one or more OFDM symbols in above-mentioned 3 OFDM symbols each time by high-level signaling comprises: by high-level signaling describe the initial subcarrier of this reference signal pattern in subframe, this reference signal pattern in subframe initial OFDM symbol or the numbering of this reference signal pattern.

According to a further aspect in the invention, a kind of new carrier reference signal dispensing device is provided, comprise: configuration module, be used for configuring reference signal in the one or more OFDM symbols in these 3 OFDM symbols when the special subframe DwPTS of new carrier wave takies front 3 OFDM symbols of this special subframe; Sending module, be used for sending reference signal by above-mentioned special subframe; Wherein, in one or more OFDM symbols of configuration module in these 3 OFDM symbols, the configuration reference signal comprises: configuration module in a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and carry out the mapping reference signal.

In one or more OFDM symbols of configuration module in these 3 OFDM symbols, the configuration reference signal comprises: configuration module in a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier come the mapping reference signal comprise following one of at least:

Said apparatus also comprises: notification module, the corresponding reference signal pattern of mode that adopts while being used for notifying the receiving terminal configuration module to configure reference signal each time in one or more OFDM symbols of above-mentioned 3 OFDM symbols by high-level signaling.

Above-mentioned notification module, be used for describing by high-level signaling the corresponding reference signal pattern of mode that the initial subcarrier of reference signal pattern in subframe, the reference signal pattern numbering of initial OFDM symbol or reference signal pattern in subframe notifies the receiving terminal configuration module to adopt during the configuration reference signal each time in one or more OFDM symbols of above-mentioned 3 OFDM symbols.

By the present invention, adopt when DwPTS in the special subframe of new carrier wave takies front 3 OFDM symbols of this special subframe, configure reference signal in one or more OFDM symbols in special mode in 3 OFDM symbols, send again the scheme of reference signal by this special subframe, solved in the special subframe of new carrier wave when DwPTS takies 3 OFDM symbols, there is no the problem of reference signal in these 3 OFDM symbols, and then reached the effect that improves resource utilization.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not form improper restriction of the present invention.In the accompanying drawings:

Fig. 1 is the frame structure schematic diagram of LTE system TDD mode;

Fig. 2 is the flow chart according to the new carrier reference signal sending method of the embodiment of the present invention;

Fig. 3 is the schematic diagram according to the reference signal pattern of the mode 1 of the configuration reference signal of the embodiment of the present invention, 2 correspondences;

Fig. 4 is the schematic diagram of the reference signal pattern corresponding according to the mode 3-6 of the configuration reference signal of the embodiment of the present invention;

Fig. 5 is the schematic diagram of the reference signal pattern corresponding according to the mode 7-10 of the configuration reference signal of the embodiment of the present invention;

Fig. 6 is the schematic diagram of the reference signal pattern corresponding according to the mode 11-14 of the configuration reference signal of the embodiment of the present invention;

Fig. 7 is the schematic diagram according to the reference signal pattern of the mode 15 of the configuration reference signal of the embodiment of the present invention, 16 correspondences;

Fig. 8 is the schematic diagram of the reference signal pattern corresponding according to the mode 17-22 of the configuration reference signal of the embodiment of the present invention;

Fig. 9 is the schematic diagram according to the reference signal pattern of the mode 23 of the configuration reference signal of the embodiment of the present invention, 24 correspondences;

Figure 10 is the schematic diagram according to the reference signal pattern of the mode 25 of the configuration reference signal of the embodiment of the present invention, 26 correspondences;

Figure 11 is the schematic diagram of the reference signal pattern corresponding according to the mode 27-29 of the configuration reference signal of the embodiment of the present invention;

Figure 12 is the schematic diagram of the reference signal pattern corresponding according to the mode 30-33 of the configuration reference signal of the embodiment of the present invention;

Figure 13 is the schematic diagram of the reference signal pattern corresponding according to the mode 34-37 of the configuration reference signal of the embodiment of the present invention;

Figure 14 is the schematic diagram of the reference signal pattern corresponding according to the mode 38-42 of the configuration reference signal of the embodiment of the present invention;

Figure 15 is the structured flowchart according to the new carrier reference signal dispensing device of the embodiment of the present invention.

Embodiment

Hereinafter with reference to accompanying drawing, also describe in conjunction with the embodiments the present invention in detail.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.

Fig. 2 is the flow chart according to the new carrier reference signal sending method of the embodiment of the present invention.As shown in Figure 2, comprise according to the new carrier reference signal sending method of the embodiment of the present invention:

Step S202, when DwPTS in the special subframe of new carrier wave takies front 3 OFDM symbols of this special subframe, configure reference signal in the one or more OFDM symbols in these 3 OFDM symbols;

Wherein, in one or more OFDM symbols in these 3 OFDM symbols, the configuration reference signal comprises: in a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and carry out the mapping reference signal;

Step S204, cross above-mentioned special subframe and send reference signal.

Method by the present embodiment, can be under tdd mode, when in special subframe, DwPTS takies 3 OFDM symbols, configure reference signal in these 3 OFDM symbols, thereby solved the problem that there is no reference signal in these 3 OFDM symbols, make when control channel or data, can utilize demodulation reference signal, reduce the wasting of resources, also can, for the CSI measurement provides reference signal, further improve resource utilization.concrete, after introducing reference signal, further can utilize 3 above-mentioned OFDM symbols to pass and strengthen defeated Physical Downlink Control Channel (enhanced Physical Downlink Control CHannel, referred to as ePDCCH) or Physical Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH) or strengthen physical hybrid automatic repeat request indicator channel (enhanced Physical Hybrid Automatic Repeat-reQuest (HARQ) Indicator Channel, referred to as ePHICH) etc. channel/information, to solve the problem for resource can't be used when DwPTS takies 3 OFDM symbols in new carrier wave.

in concrete mapping mode, in a subframe with reference to signal after the time domain direction is mapped in one or more OFDM symbols in these 3 OFDM symbols, also will the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, in fact this just is mapped to situation in a plurality of OFDM symbols in 3 OFDM symbols for reference signal in the time domain direction, because if reference signal is in the time domain direction has been mapped to OFDM symbol in 3 OFDM symbols, so must be on same subcarrier in the frequency domain direction reference signal.

Preferably, by the performance simulation for reference signal, the Simulation Evaluation of for example demodulation, measurement, tracking aspect, this preferred embodiment from different angles (for example value performance, value expense, performance and balanced) of the expense multiple independently configuration mode below having provided respectively, to configure reference signal in the one or more OFDM symbols in above-mentioned 3 OFDM symbols.Can adopt base station as preferred executive agent in following configuration mode.

Mode 1: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding,, as Fig. 3 (a) with (b), adopt R7, R8 to represent position at the pattern in subframe in figure, Fig. 3 (a) and (b) in further provided the distribution of antenna port, for example R7, represent antenna port 7.

Base station is in DwPTS after transmission of reference signals, following occupation mode can be adopted to the DwPTS resource in base station: base station is by transmitting control channel/information (for example ePDCCH, ePHICH) only in 3 OFDM symbols of DwPTS, be not used in the transmission of data (for example PDSCH), the design of the transmission block in the time of can saving the transmission of data like this (Transport Block, referred to as TB) block size.Perhaps, also can the transmission of data, so just need to design suitable TB block size for 3 OFDM sign resources.For the UE side, UE can utilize reference signal to carry out data or the signaling of transmitting in demodulation DwPTS, and the RRM that also can utilize reference signal to carry out DwPTS measures or CSI measures, and also can be used for synchronous the tracking.

Mode 2: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding,, as Fig. 3 (c) with (d), adopt R9, R10 to represent position at the pattern in subframe.

Mode 3: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 4th subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 4 (a), wherein R represents the position of reference signal to the pattern in subframe.

Mode 4: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 4 (b), wherein R represents the position of reference signal to the pattern in subframe.

Mode 5: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 4 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 6: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 4 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 7: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 4th subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 5 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 8: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 5 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 9: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 5 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 10: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 5 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 11: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 4th subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 6 (a), wherein R represents the position of reference signal to the pattern in subframe.

Mode 12: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 6 (b), wherein R represents the position of reference signal to the pattern in subframe.

Mode 13: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 6 (c), wherein R represents the position of reference signal to the pattern in subframe.

Mode 14: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 4 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 6 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 15: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 7 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 16: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 7 (b) shows, wherein R represents the position of reference signal to the pattern in subframe.

Mode 17: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 8 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 18: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 8 (b) shows, wherein R represents the position of reference signal to the pattern in subframe.

Mode 19: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 8 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 20: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 8 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 21: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 8 (e), wherein R represents the position of reference signal at the pattern in subframe.

Mode 22: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 8 (f), wherein R represents the position of reference signal at the pattern in subframe.

Mode 23: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 9 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 24: during short CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Fig. 9 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 25: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 10 (a) shows, wherein R represents the position of reference signal to the pattern in subframe.

Mode 26: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 5 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 10 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 27: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 11 (a) shows, wherein R represents the position of reference signal to the pattern in subframe.

Mode 28: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 11 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 29: during short CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 2nd and the 3rd OFDM symbol, reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 11 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 30: during long CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 12 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 31: during long CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 12 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 32: during long CP, in a subframe with reference to signal in time domain side, be mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 12 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 33: during long CP, in a subframe with reference to signal in the time domain direction is mapped in 3 OFDM symbols that DwPTS takies the 1st and the 2nd OFDM symbol, reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 6 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 12 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 34: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 13 (a), wherein R represents the position of reference signal at the pattern in subframe.

Mode 35: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 13 (b), wherein R represents the position of reference signal at the pattern in subframe.

Mode 36: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 1st OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 13 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 37: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 13 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 38: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 14 (a), wherein R represents the position of reference signal to the pattern in subframe.

Mode 39: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 2nd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 14 (b), wherein R represents the position of reference signal to the pattern in subframe.

Mode 40: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 3rd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 14 (c), wherein R represents the position of reference signal at the pattern in subframe.

Mode 41: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 2nd subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 14 (d), wherein R represents the position of reference signal at the pattern in subframe.

Mode 42: during long CP, in a subframe with reference to signal in the time domain direction is mapped to the 3rd OFDM symbol in 3 OFDM symbols that DwPTS takies, frequency domain direction in subframe since the 1st subcarrier (from up to down sequence), maintenance is spaced apart 3 subcarriers and carrys out the mapping reference signal.Corresponding, as shown in Figure 14 (e), wherein R represents the position of reference signal at the pattern in subframe.

Above-mentioned various ways can independently use, and also various ways can be used in combination as alternative means.

Preferably, at various ways, in conjunction with as alternative means the time, also need to notify receiving terminal this moment specifically to adopt any concrete mode by signaling or other implicit modes, for example can adopt the high-level signaling notice.Concrete signaling and the mode that implies are many, this preferred embodiment provides several preferably modes: can, by the initial subcarrier information of signaling reference signal, namely by the mode of describing the initial subcarrier of reference signal pattern in subframe, distinguish concrete mode this moment; Or the positional information of the OFDM at the place by the signaling reference signal; Namely by the mode of describing reference signal pattern initial OFDM symbol in subframe, distinguish concrete mode this moment; Perhaps, also can, by for the pattern numbering, adopt the mode of describing numbering to distinguish concrete mode this moment.

Adopt the method for this various ways combination to make base station can select different reference signal patterns to send between adjacent cell by multiple different reference signal pattern is provided, can avoid to a certain extent the interference between reference signal.In this preferred embodiment, can adopt preferably executive agent of base station conduct, for example when

mode

3,4,5,6 was used as alternative means simultaneously, base station was by the initial subcarrier information of signaling reference signal, to distinguish concrete mode this moment; When perhaps

mode

3,7,11 was used as alternative means simultaneously, base station was by the positional information of the OFDM at the place of signaling reference signal.

When the DwPTS in new carrier wave took 3 OFDM, in subframe, the initial subcarrier of reference signal subcarrier can adopt the mode of high-level signaling notice, also can adopt the virtual subdistrict ID of the residential quarter corresponding according to new carrier wave to calculate acquisition.Mode for adopting the high-level signaling notice, specifically can adopt RRCConnectionReconfiguration message to notify.Mode by virtual subdistrict ID calculating, can utilize the initial subcarrier serial number of the initial subcarrier of reference signal=(virtual subdistrict ID) mod(maximum (as Fig. 4 (a), subcarrier serial number 4), for example with

mode

3,4,5,6 simultaneously as a candidate collection, so corresponding initial maximum subcarrier serial number is 4, remainder=virtual subdistrict ID mod 4 so,

remainder

0,1,2,3 corresponding initial subcarrier respectively is that serial number is 1,2,3,4.

Below in conjunction with example, above preferred embodiment is described.

Example 1

Under the LTE tdd mode, DwPTS takies 3 OFDM symbols in the special subframe of new carrier wave, and the reference signal pattern in subframe as shown in Figure 4 (a), and solidifies by standard agreement.

Under tdd mode, when base station knew in residential quarter corresponding to new carrier wave that DwPTS has taken in subframe 3 OFDM, base station, according to the pattern mapping reference signal shown in Fig. 4 (a), and sent corresponding ePDCCH signaling in the special subframe of correspondence.

UE can be known basic configuration information in system according to the announcement information of base station, comprise the OFDM number of symbols that tdd mode, new carrier cell, DwPTS take, then know and run under tdd mode as UE, and be in new carrier cell, DwPTS has taken 3 OFDM symbols, UE thinks that base station has sent reference signal according to pattern shown in Fig. 4 (a) in special subframe so, thereby UE receives the data in DwPTS, detects reference signal and is used for wherein ePDCCH of demodulation.

Example 2

Under the LTE tdd mode, DwPTS takies 3 OFDM symbols in the special subframe of new carrier wave, reference signal pattern in subframe can be for as Fig. 4 (a) and (b), (c), (d) as shown in (same OFDM symbol, the original position difference of subcarrier), and by standard agreement, solidifies.

Under tdd mode, when base station knew in new carrier wave corresponding residential quarter 1 that DwPTS has taken in subframe 3 OFDM, base station, according to the pattern mapping reference signal shown in Fig. 4 (a), and sent corresponding ePDCCH signaling in the special subframe of correspondence.Same adjacent cell 2 is also to use new carrier wave, and base station is that adjacent cell 2 adopts the pattern mapping reference signal shown in Fig. 4 (b).The reference signal of such two residential quarters can in same subcarrier, can not reduce interference each other.

UE1 is arranged in residential quarter 1, can know basic configuration information in system according to the announcement information of base station, comprise the OFDM number of symbols that tdd mode, new carrier cell, DwPTS take, further base station also needs to notify UE, that that adopts pattern in above-mentioned 4 in residential quarter is a kind of, and for example the initial subcarrier of the reference signal of base station notifying cell 1 is the 4th.Then know and run under tdd mode as UE, and be in new carrier cell 1, DwPTS has taken 3 OFDM symbols, UE thinks that base station has sent reference signal according to pattern shown in Fig. 4 (a) in special subframe so, thereby UE receives the data in DwPTS, detects reference signal and is used for wherein ePDCCH of demodulation.

UE2 is arranged in residential quarter 2, can know basic configuration information in system according to the announcement information of base station, comprise the OFDM number of symbols that tdd mode, new carrier cell, DwPTS take, further base station also needs to notify UE, that that adopts pattern in above-mentioned 4 in residential quarter is a kind of, and for example the initial subcarrier of the reference signal of base station notifying cell 2 is the 3rd.Then know and run under tdd mode as UE, and be in new carrier cell 2, DwPTS has taken 3 OFDM symbols, UE thinks that base station has sent reference signal according to pattern shown in Fig. 4 (b) in special subframe so, thereby UE receives the data in DwPTS, detects reference signal and is used for wherein ePDCCH of demodulation.

Example 3

Under the LTE tdd mode, when DwPTS takies 3 OFDM symbols in the special subframe of new carrier wave, reference signal pattern in subframe can be for as shown in Fig. 4 (a), Fig. 5 (a), Fig. 6 (a) (different OFDM symbols, the original position of same sub-carrier), and by standard agreement, solidifies.

Under tdd mode, when base station knew in new carrier wave corresponding residential quarter 1 that DwPTS has taken in subframe 3 OFDM, base station, according to the pattern mapping reference signal shown in Fig. 4 (a), and sent corresponding ePDCCH signaling in the special subframe of correspondence.Same adjacent cell 2 is also to use new carrier wave, and base station is that adjacent cell 2 adopts the pattern mapping reference signal shown in Fig. 5 (a).The reference signal of such two residential quarters can in same subcarrier, can not reduce interference each other.

UE1 is arranged in residential quarter 1, can know basic configuration information in system according to the announcement information of base station, comprise the OFDM number of symbols that tdd mode, new carrier cell, DwPTS take, further base station also needs to notify UE, that that adopts pattern in above-mentioned 3 in residential quarter is a kind of, and for example the initial OFDM symbol of the reference signal of base station notifying cell 1 is the 1st.Then know and run under tdd mode as UE, and be in new carrier cell 1, DwPTS has taken 3 OFDM symbols, UE thinks that base station has sent reference signal according to pattern shown in Fig. 4 (a) in special subframe so, thereby UE receives the data in DwPTS, detects reference signal and is used for wherein ePDCCH of demodulation.

UE2 is arranged in residential quarter 2, can know basic configuration information in system according to the announcement information of base station, comprise the OFDM number of symbols that tdd mode, new carrier cell, DwPTS take, further base station also needs to notify UE, that that adopts pattern in above-mentioned 3 in residential quarter is a kind of, and for example the initial OFDM symbol of the reference signal of base station notifying cell 2 is the 2nd.Then know and run under tdd mode as UE, and be in new carrier cell 2, DwPTS has taken 3 OFDM symbols, UE thinks that base station has sent reference signal according to pattern shown in Fig. 5 (a) in special subframe so, thereby UE receives the data in DwPTS, detects reference signal and is used for wherein ePDCCH of demodulation.

For example 2 and example 3, also can further to selected multiple reference signal pattern, be numbered, numbering is carried out standardization with corresponding pattern, the concrete reference signal pattern that base station adopts the mode of notice pattern numbering to notify UE to adopt in special subframe.

Figure 15 is the structured flowchart according to the new carrier reference signal dispensing device of the embodiment of the present invention.As shown in figure 15, comprise according to the new carrier reference signal dispensing device of the embodiment of the present invention:

Configuration module 152, be used for configuring reference signal in the one or more OFDM symbols in these 3 OFDM symbols when the special subframe DwPTS of new carrier wave takies front 3 OFDM symbols of this special subframe;

Wherein, in one or more OFDM symbols of configuration module 152 in these 3 OFDM symbols, the configuration reference signal comprises: configuration module 152 in a subframe with reference to signal in the time domain direction is mapped to one or more OFDM symbols in these 3 OFDM symbols, the frequency domain direction Preserving map to the reference signal in the one or more OFDM symbols in these 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and carry out the mapping reference signal;

Sending module 154, be connected to configuration module 152, is used for sending reference signal by above-mentioned special subframe.

The device of the present embodiment can be under tdd mode, when in special subframe, DwPTS takies 3 OFDM symbols, configure reference signal in these 3 OFDM symbols, thereby solved the problem that there is no reference signal in these 3 OFDM symbols, make when control channel or data, can utilize demodulation reference signal, reduce the wasting of resources, also can, for the CSI measurement provides reference signal, further improve resource utilization.

Preferably, configuration module 152 can adopt in one or more OFDM symbols of one or more modes in above-mentioned 3 OFDM symbols in above-mentioned mode 1-42 and configure reference signal, and the particular content of mode 1-42 repeats no more herein.

Preferably, said apparatus can further include:

Notification module, the corresponding reference signal pattern of mode that adopts while being used for notifying the receiving terminal configuration module to configure reference signal each time in one or more OFDM symbols of above-mentioned 3 OFDM symbols by high-level signaling.

, because above-mentioned various ways can independently use, also various ways can be used in combination as alternative means.Therefore, at various ways, in conjunction with as alternative means the time, also need to notify receiving terminal this moment specifically to adopt any concrete mode by signaling or other implicit modes, for example can adopt the high-level signaling notice.Preferably, above-mentioned high-level signaling can comprise: RRCConnectionReconfiguration message, wherein, RRCConnectionReconfiguration message comprises the parameter of describing the reference signal pattern in carrier wave.

Preferably, notification module can be used for describing by high-level signaling the corresponding reference signal pattern of mode that the initial subcarrier of reference signal pattern in subframe, the reference signal pattern numbering of initial OFDM symbol or reference signal pattern in subframe notifies the receiving terminal configuration module to adopt during the configuration reference signal each time in one or more OFDM symbols of above-mentioned 3 OFDM symbols.

From above description, can find out, technical scheme provided by the invention can under tdd mode, when in special subframe, DwPTS takies 3 OFDM symbols, configure reference signal in these 3 OFDM symbols, thereby can solve the problem that there is no reference signal in these 3 OFDM symbols, make when control channel or data, can utilize demodulation reference signal, reduce the wasting of resources, also can, for the CSI measurement provides reference signal, further improve resource utilization.Simultaneously, after introducing reference signal, also can utilize above-mentioned 3 OFDM symbol transmission ePDCCH or the channel/information such as PDSCH or ePHICH, to solve the problem for resource can't be used when DwPTS takies 3 OFDM symbols in new carrier wave.

obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a new carrier reference signal sending method, is characterized in that, comprising:

When descending pilot frequency time slot DwPTS in the special subframe of new carrier wave takies front 3 Orthodoxy Frequency Division Multiplex OFDM symbols of described special subframe, configure reference signal in the one or more OFDM symbols in described 3 OFDM symbols;

Send described reference signal by described special subframe;

Wherein, in one or more OFDM symbols in described 3 OFDM symbols, the configuration reference signal comprises: in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and shine upon described reference signal.

2. method according to claim 1, it is characterized in that, in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier shine upon described reference signal comprise following one of at least:

During short cyclic prefix CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 2nd and the 3rd OFDM symbol, described reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 2nd and the 3rd OFDM symbol, described reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 5 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 2nd and the 3rd OFDM symbol, described reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 2nd and the 3rd OFDM symbol, described reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During short CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 2nd and the 3rd OFDM symbol, described reference signal in 2 of frequency domain direction Preserving maps to the and the 3rd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal.

3. method according to claim 1, it is characterized in that, in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier shine upon described reference signal comprise following one of at least:

During long CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 4th subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped in described 3 OFDM symbols the 1st and the 2nd OFDM symbol, described reference signal in 1 of frequency domain direction Preserving map to the and the 2nd OFDM symbol is on same subcarrier, and in subframe since the 3rd subcarrier, keep being spaced apart 6 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 1st OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 2nd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 3rd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 2nd subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal;

During long CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd OFDM symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 1st subcarrier, keep being spaced apart 3 subcarriers and shine upon described reference signal.

4. according to claim 2 or 3 described methods, is characterized in that, after by described special subframe, sending described reference signal, also comprises:

The corresponding reference signal pattern of mode of notifying receiving terminal to adopt during the configuration reference signal in the one or more OFDM symbols in described 3 OFDM symbols each time by high-level signaling.

5. method according to claim 4, it is characterized in that, described high-level signaling comprises: radio resource control connects reshuffles RRCConnectionReconfiguration message, wherein, described RRCConnectionReconfiguration message comprises the parameter of describing the reference signal pattern in carrier wave.

6. method according to claim 4, is characterized in that, the corresponding reference signal pattern of mode of notifying receiving terminal to adopt during the configuration reference signal in the one or more OFDM symbols in described 3 OFDM symbols each time by high-level signaling comprises:

By high-level signaling describe the initial subcarrier of this reference signal pattern in subframe, this reference signal pattern in subframe initial OFDM symbol or the numbering of this reference signal pattern.

7. a new carrier reference signal dispensing device, is characterized in that, comprising:

Configuration module, be used for configuring reference signal in the one or more OFDM symbols in described 3 OFDM symbols when the special subframe descending pilot frequency time slot DwPTS of new carrier wave takies front 3 Orthodoxy Frequency Division Multiplex OFDM symbols of described special subframe;

Sending module, be used for sending described reference signal by described special subframe;

Wherein, in one or more OFDM symbols of described configuration module in described 3 OFDM symbols, the configuration reference signal comprises: described configuration module in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier and shine upon described reference signal.

8. device according to claim 7, it is characterized in that, described configuration module in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier shine upon described reference signal comprise following one of at least:

During short CP, in a subframe with described reference signal in the time domain direction is mapped to the 3rd symbol in described 3 OFDM symbols, frequency domain direction in subframe since the 4th subcarrier, keep being spaced apart 4 subcarriers and shine upon described reference signal;

9. device according to claim 7, it is characterized in that, described configuration module in a subframe with described reference signal in the time domain direction is mapped to one or more OFDM symbols in described 3 OFDM symbols, the frequency domain direction Preserving map to the described reference signal in the one or more OFDM symbols in described 3 OFDM symbols on same subcarrier, and in subframe from predetermined subcarrier, keep being spaced apart a predetermined quantity subcarrier shine upon described reference signal comprise following one of at least:

10. according to claim 8 or claim 9 device, is characterized in that, also comprises:

Notification module, the corresponding reference signal pattern of mode that adopts while being used for notifying the described configuration module of receiving terminal to configure reference signal each time in one or more OFDM symbols of described 3 OFDM symbols by high-level signaling.

11. device according to claim 10, it is characterized in that, described high-level signaling comprises: radio resource control connects reshuffles RRCConnectionReconfiguration message, wherein, described RRCConnectionReconfiguration message comprises the parameter of describing the reference signal pattern in carrier wave.

12. device according to claim 10, it is characterized in that, described notification module, be used for describing by high-level signaling the corresponding reference signal pattern of mode that the initial subcarrier of reference signal pattern in subframe, the reference signal pattern numbering of initial OFDM symbol or reference signal pattern in subframe notifies the described configuration module of receiving terminal to adopt during the configuration reference signal each time in one or more OFDM symbols of described 3 OFDM symbols.