CN107347004A - The transmission method and device of detection reference signal - Google Patents
The transmission method and device of detection reference signal Download PDFInfo
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- CN107347004A CN107347004A CN201610291279.2A CN201610291279A CN107347004A CN 107347004 A CN107347004 A CN 107347004A CN 201610291279 A CN201610291279 A CN 201610291279A CN 107347004 A CN107347004 A CN 107347004A
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- subframe
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- transition zone
- fdma
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/0008—Wavelet-division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The invention discloses a kind of transmission method of detection reference signal and device.Including：According to the subframe type of target-subframe and circulation preamble CP types, continuous at least one single-carrier frequency division multiple access SC FDMA symbols are defined as detection reference signal SRS areas and at least one transition zone from the SC FDMA symbols of target-subframe, transition zone includes adjacent with SRS areas and continuous at least one SC FDMA symbol, SRS areas are used to carry detection reference signal SRS symbols, and transition zone is used to carry out radio frequency conversion；The SRS areas determined for user equipment (UE) configuration and transition zone.The embodiment of the present invention transmits detection reference signal SRS in SRS areas can measure the channel condition information of corresponding descending carrier by channel reciprocity, realize the Performance Evaluation of whole carrier waves in downlink system, improve downlink system performance.
Description
Technical field
The present embodiments relate to the transmission method and dress of the communication technology, more particularly to a kind of detection reference signal
Put.
Background technology
With the development of the communication technology, Long Term Evolution (Long Term Evolution, LTE) network obtains
Widely use.When being arranged net to LTE network, because downlink business is more than uplink service, then configure
Descending carrier quantity exceed up-link carrier quantity.
Research topic RP-160676, " New WI proposal are set up in 3GPP RAN71:SRS Carrier
Based Switching for LTE ", to study when descending carrier number is more than up-link carrier number, how to pass through
Channel reciprocity obtains downlink channel condition.Research is found, can send out Physical Downlink Shared Channel
(Physical Downlink Shared Channel, PDSCH) and Physical Uplink Shared Channel can not be sent out
Only transmitted in the cell (also known as carrier wave) of (Physical Uplink Shared Channel, PUSCH)
Detection reference signal (Sounding Reference Signal, SRS), passes through time division duplex (Time Division
Duplex, TDD) minizone SRS switchings, using the channel reciprocity in TDD LTE, obtain
Downlink channel condition.I.e. evolved base station (Evolved Node B, eNB) receives user equipment (User
Equipment, UE) SRS that sends, up and downlink channel condition is obtained, and according to down channel shape
State carries out descending scheduling.
However, when descending carrier (or being cell, carrier wave is that is, cell) number is more than up-link carrier,
Such as UE is configured with descending carrier A, descending carrier B and up-link carrier C, now eNB can only pass through
The SRS that up-link carrier C is sent out obtains corresponding descending carrier A channel condition information.However, due to
Descending carrier B can not obtain descending carrier B without its corresponding up-link carrier by channel reciprocity
Channel condition information, and then influence descending systematic function.
The content of the invention
The present invention provides a kind of transmission method and device of detection reference signal, to realize in TDD LTE systems
In system, when descending cell is more than uplink cells number, whole down channel SRS are obtained, improve descending system
System performance.
In a first aspect, the embodiments of the invention provide a kind of transmission method of detection reference signal, including：
According to the subframe type of target-subframe and circulation preamble CP types, from the target-subframe
Continuous at least one single-carrier frequency division multiple access SC-FDMA symbols are defined as visiting in SC-FDMA symbols
Survey reference signal SRS areas and at least one transition zone, the transition zone include it is adjacent with the SRS areas and
Continuous at least one SC-FDMA symbol, the SRS areas are used to carry detection reference signal SRS
Symbol, the transition zone are used to carry out radio frequency conversion；
The SRS areas determined for user equipment (UE) configuration and transition zone.
Second aspect, the embodiment of the present invention additionally provide a kind of transmitting device of detection reference signal, including：
Symbol determining unit, for the subframe type according to target-subframe and circulation preamble CP types, from institute
Stating will continuous at least one single-carrier frequency division multiple access SC-FDMA in the SC-FDMA symbols of target-subframe
Symbol is defined as detection reference signal SRS areas and at least one transition zone, the transition zone include with it is described
The adjacent and continuous at least one SC-FDMA in SRS areas symbol, the SRS areas, which are used to carry, to be detected
Reference signal SRS symbols, the transition zone are used to carry out radio frequency conversion；
Dispensing unit, for configuring the SRS areas of the symbol determining unit determination for user equipment (UE) and turning
Change area.
The embodiment of the present invention can be according to the subframe type of target-subframe and circulation preamble CP types, from described
Will continuous at least one single-carrier frequency division multiple access SC-FDMA symbols in the SC-FDMA symbols of target-subframe
Number it is defined as detection reference signal SRS areas and at least one transition zone, is detected because SRS areas are used to carry
Reference signal SRS symbols, therefore detection reference signal SRS can be transmitted by SRS areas, while transition zone
The time is provided for radio frequency conversion, and then does not interfere with reception and the upstream data of other downlink datas
Send.Prior art can not measure the channel condition information of the descending carrier to not corresponding up-link carrier.
The embodiment of the present invention transmits detection reference signal SRS in SRS areas to measure phase by channel reciprocity
The channel condition information of descending carrier is answered, realizes the Performance Evaluation of whole carrier waves in downlink system, is improved descending
Systematic function.
Brief description of the drawings
Fig. 1 is the flow chart of the transmission method of the detection reference signal in the embodiment of the present invention one；
Fig. 2 is the flow chart of the transmission method of the detection reference signal in the embodiment of the present invention two；
Fig. 3 is the flow chart of the transmission method of the detection reference signal in the embodiment of the present invention three；
Fig. 4 is the first aim sub-frame configuration schematic diagram in the embodiment of the present invention three；
Fig. 5 is the second target sub-frame configuration schematic diagram in the embodiment of the present invention three；
Fig. 6 is the 3rd target-subframe configuration schematic diagram in the embodiment of the present invention three；
Fig. 7 is the 4th target-subframe configuration schematic diagram in the embodiment of the present invention three；
Fig. 8 is the 5th target-subframe configuration schematic diagram in the embodiment of the present invention three；
Fig. 9 is the 6th target-subframe configuration schematic diagram in the embodiment of the present invention three；
Figure 10 is the structural representation of the transmitting device of the detection reference signal in the embodiment of the present invention four.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the present invention, rather than limitation of the invention.Also need in addition
It is noted that for the ease of description, part related to the present invention illustrate only in accompanying drawing and not all knot
Structure.
Embodiment one
The flow chart of the transmission method for the detection reference signal that Fig. 1 provides for the embodiment of the present invention one, this implementation
Example is applicable in TDD LTE systems, when descending cell is more than uplink cells number, is obtained descending
The situation of the channel condition information of carrier wave, this method can be performed by the equipment of network side, be specifically as follows
Evolved base station (Evolved Node B, eNB), this method can be to specifically comprise the following steps：
Step 110, subframe type and circulation preamble CP types according to target-subframe, from target-subframe
Continuous at least one single-carrier frequency division multiple access SC-FDMA symbols are defined as visiting in SC-FDMA symbols
Survey reference signal SRS areas and at least one transition zone, transition zone include it is adjacent with SRS areas and it is continuous extremely
Few SC-FDMA symbol, SRS areas are used to carry detection reference signal SRS symbols, transition zone
For carrying out radio frequency conversion.
A larger chronomere is wirelessly generally used as using frame in Radio Transmission Technology.In TDD,
One radio frames is made up of multiple subframes, and subframe is divided into sub-frame of uplink, descending sub frame and special subframe by type,
Wherein, sub-frame of uplink is similar with the structure of descending sub frame, therefore when dividing SRS areas, up son
Frame has similar partition strategy with the SRS areas of descending sub frame, can be from the complete of sub-frame of uplink or descending sub frame
SRS areas and transition zone are configured in portion's SC-FDMA symbols.For example, the length of sub-frame of uplink or descending sub frame
For 12 or 14 SC-FDMA symbols.Special subframe is by descending pilot frequency time slot (Downlink Pilot Time
Slot, DwPTS), protection interval (Guard Period, GP) and uplink pilot time slot (Uplink Pilot
Time Slot, UpPTS) composition.Because SRS is a kind of information from UE to base station that sent from, therefore
SRS areas and transition zone are configured in uplink pilot time slot.Optionally, uplink pilot time slot includes 4
SC-FDMA symbols.
Circulating preamble CP includes conventional CP and extension CP.For different preamble CP, son corresponding to it
Frame total length is different, when the length of sub-frame of uplink (or descending sub frame) is more than extension CP during conventional CP on
The length of row subframe (or descending sub frame).For example, the length of conventional CP sub-frame of uplink (or descending sub frame)
Spend for 14 SC-FDMA symbols, the length for extending CP sub-frame of uplink (or descending sub frame) is 12
SC-FDMA symbols.Accordingly, conventional CP SRS section lengths are more than the length in extension CP SRS areas
Degree.For example, the length in the SRS areas of conventional CP sub-frame of uplink (or descending sub frame) is 6 SC-FDMA
Symbol, the length in the SRS areas of extension CP sub-frame of uplink (or descending sub frame) accord with for 3 SC-FDMA
Number.Transition zone is adjacent with SRS areas, and optionally, the length of transition zone is 3 SC-FDMA symbols.
Step 120, the SRS areas determined for user equipment (UE) configuration and transition zone.
In addition to the SRS information of general networkses side configuration, the SRS areas for also determining step 110 and conversion
SC-FDMA character positions information configuration is to UE corresponding to area.
The SRS information of general networkses side configuration includes：For specify SRS periodicity, designate whether into
Row SRS frequency hoppings, specify UE be only send a SRS (FALSE) or wireless transmission cycle SRS,
Perform that periodicity (or aperiodicity) SRS report cycle and subframe within the cycle are cheap, specify the cycle
Property (or aperiodic row) SRS " broach ", specify the periodically antennas that use of (or aperiodicity) SRS
Port number.
The present embodiment can be according to the subframe type and circulation preamble CP types of target-subframe, from the target
It is in the SC-FDMA symbols of subframe that continuous at least one single-carrier frequency division multiple access SC-FDMA symbols is true
It is set to detection reference signal SRS areas and at least one transition zone, because SRS areas are used to carry detection reference
Signal SRS symbols, therefore detection reference signal SRS can be transmitted by SRS areas, while transition zone is to penetrate
Frequency RF conversions provide the time, and then do not interfere with the reception of other downlink datas and the transmission of upstream data.
Prior art can not measure the channel condition information of the descending carrier to not corresponding up-link carrier.This implementation
Detection reference signal SRS is transmitted in Li SRS areas can measure corresponding descending carrier by channel reciprocity
Channel condition information, realize the Performance Evaluations of whole carrier waves in downlink system, improve downlink system performance.
Embodiment two
Fig. 2 is the flow chart of the transmission method for the detection reference signal that the embodiment of the present invention two provides, as right
The further explanation of embodiment one, step 110, subframe type and CP types according to target-subframe, from
Continuous at least one SC-FDMA symbols are defined as SRS in the SC-FDMA of the target-subframe
Area and at least one transition zone, including：
Step 101, the type for obtaining target-subframe.
The type of target-subframe can be to be divided into two kinds of common subframe and special subframe.Wherein, common subframe bag
Include sub-frame of uplink and descending sub frame.If target-subframe is common subframe, step 102 is performed.If mesh
Mark subframe is special subframe, then performs step 104.
If step 102, target-subframe are common subframe, the preamble circulation CP classes of common subframe are obtained
Type, the CP types are conventional CP or extension CP.Perform step 103
Step 103, CP types are circulated according to preamble, will be continuous from the SC-FDMA of common subframe
At least one SC-FDMA symbols are defined as SRS areas and at least one transition zone, extend SRS in CP
Area takes SC-FDMA symbol quantities and is less than occupancy SC-FDMA symbolic numbers in SRS areas in the conventional CP
Amount.
When target-subframe has different preamble circulations, respective change can occur for the length of target-subframe.Example
Such as, during conventional CP, common subframe is by " 0 "~" 13 ", common SC-FDMA symbols composition.It can incite somebody to action
" 6 "~" 10 " SC-FDMA symbols are defined as SRS areas；" 3 "~" 5 " and " 11 "~" 13 " SC-FDMA are accorded with
Number it is defined as two transition zones；" 0 "~" 2 " SC-FDMA symbols are defined as control zone, control zone is used for pair
SRS areas and transition zone are configured.When extending CP, common subframe is by " 0 "~" 11 ", common SC-FDMA
Symbol forms." 6 "~" 8 " SC-FDMA symbols can be defined as SRS areas；By " 3 "~" 5 " and
" 9 "~" 11 " SC-FDMA symbols are defined as two transition zones；" 0 "~" 2 " SC-FDMA symbols are defined as
Control zone.
If step 104, target-subframe type are special subframe, in the ascending pilot frequency UpPTS of special subframe
Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one transition zone in time slot.
SRS in LTE system can use the form periodically sent, i.e. terminal device can be with certain
Cycle persistently sends sounding signals, referred to as triggers the SRS (Trigger type 0SRS) of type 0.
SRS in LTE system can also use the form that aperiodicity is sent, and can improve SRS resource utilization rate,
The expense of SRS resource is reduced, referred to as triggers the SRS (Trigger type 1SRS) of Class1.And the cycle
Property SRS unlike, aperiodic SRS be base station dynamic activate, once activation after terminal device just meeting
Send sounding signals.
Periodicity SRS parameter can be configured by network side, include SRS CS (Cycle Shift, circulation
Displacement), bandwidth, frequency parameter, the cycle and send subframe position etc..Aperiodic SRS parameter can pass through
Network side is configured, and Dynamic trigger is carried out by PDCCH or EPDCCH；Also it can be configured and carried out by network side
Parameter configuration, Dynamic trigger and selection parameter are carried out by PDCCH or EPDCCH.
Specifically, (1) when SRS triggering type for triggering type 0 when, if UE be configured to support 2 or
4 extra UpPTS symbols, if then UpPTS time slot length is more than conversion section length M, according to
Last UpPTS symbol and conversion section length M of target-subframe determine transition zone, will remove transition zone and accord with
The UpPTS symbols of extra are as SRS areas.Otherwise, if UE is configured without to support 2 or 4 volumes
Outer UpPTS symbols, do not support the SRS triggering types 0 positioned at UpPTS.
In special subframe, DwPTS:GP:UpPTS symbol ratio is 3：7：4.Optionally, will
" 10 " SC-FDMA symbols are defined as SRS areas, and " 11 "~" 13 " SC-FDMA symbols are defined as into transition zone.
(2) when SRS triggering types is trigger Class1, by whole UpPTS symbols as SRS areas.
Optionally, " 10 "~" 13 " SC-FDMA symbols are defined as SRS areas.
Target-subframe can be divided into common subframe and special subframe by the present embodiment according to the type of target-subframe
Be respectively processed, and provide conventional CP and expand two kinds of CP in the case of common subframe in how to match somebody with somebody
SRS areas are put, realizes in conventional CP and expansion CP, SRS can be carried in common subframe, is improved
Resource utilization.In addition, the present embodiment is additionally provided in different triggering types, how to match somebody with somebody in special subframe
SRS areas are put, are realized in different triggering types, SRS can be carried by special subframe, further
Improve resource utilization.
Embodiment three
Fig. 3 is the flow chart of the transmission method for the detection reference signal that the embodiment of the present invention three provides, as right
The further explanation of above-described embodiment, step 110, subframe type and CP types according to target-subframe,
Continuous at least one SC-FDMA symbols are defined as from the SC-FDMA symbols of the target-subframe
SRS areas and at least one transition zone, including：
According to the subframe type of target-subframe, CP types and triggering type, from the target-subframe
Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one in SC-FDMA symbols
Transition zone.It can specifically be implemented by following manner：
Step 110a, if SRS triggering type is triggering type 0, or, SRS triggering type is
Next subframe of triggering Class1 and target-subframe is descending sub frame or special subframe, or, SRS's touches
Hair type is up to exist in triggering Class1 and the next subframe uplink subframe and sub-frame of uplink of target-subframe
Data, then according to the subframe type of target-subframe and CP types, from the SC-FDMA symbols of target-subframe
It is middle that continuous at least one SC-FDMA symbols are defined as SRS areas and two transition zones, the SRS
Area is adjacent with the first transition zone and the second transition zone respectively, the last symbol of first transition zone and institute
The first SC-FDMA for stating SRS areas is adjacent；First symbol of second transition zone and the SRS
Last SC-FDMA symbol in area is adjacent.
Because the triggering bit period of type 0 sends data, it is therefore desirable to transition zone is set behind SRS areas,
To carry out radio frequency conversion.
If next subframe of target-subframe is descending sub frame or special sub- town, or upstream data to be present
Sub-frame of uplink, then need to set transition zone behind SRS areas, realize the isolation between signal, reduce
Interference, improve signal to noise ratio.
Specifically, the preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；
M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；
By the last M SC-FDMA symbols of the target-subframe as the second transition zone
By remaining SC-FDMA symbols in the target-subframe as SRS areas.
Optionally, C is that 1~4, M is 1~4.Preferably, C 3, M 3.
For common subframe, because the length of the subframe in different preamble circulations is not quite similar, therefore pass through
Preceding C SC-FDMA symbols are being reserved as control zone, are reserving M according to the conversion time of radio frequency
SC-FDMA symbols accord with as the first transition zone and by the last M SC-FDMA of the target-subframe
After number as the second transition zone, adjustable length SRS areas are obtained, versatility is stronger.
Step 110, subframe type and CP types according to target-subframe, from the target-subframe
Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one in SC-FDMA symbols
Transition zone, it can also be implemented by following manner：
If without upstream data step 110b, in next subframe uplink subframe of target-subframe and sub-frame of uplink,
, will be even from the SC-FDMA symbols of target-subframe then according to the subframe type of target-subframe and CP types
Continuous at least one SC-FDMA symbols are defined as SRS areas, and at least one SC-FDMA symbols include mesh
Mark last SC-FDMA symbol of subframe；The last symbol of transition zone and the first of SRS areas
SC-FDMA is adjacent.
If without upstream data, nothing in next subframe uplink subframe of target-subframe and the sub-frame of uplink
Transition zone is set behind Xu Zai SRS areas, i.e., transition zone is set before Zhi SRS areas.
Specifically, the preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；
M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；
By remaining SC-FDMA symbols in the target-subframe as SRS areas.
Optionally, C is that 1~4, M is 1~4.Preferably, C 3, M 3.
Further, step 120, the SRS areas for UE configuration determinations and transition zone, can pass through following sides
Formula is implemented：
When SRS types are Class1, pass through down control channel PDCCH or EPDCCH carrying
DCI is indicated, the SRS areas determined and transition zone are configured for UE.
Can be the SRS areas and transition zone that UE configurations determine by following three kinds of modes：
Mode 1：Above-mentioned symbol may be selected using fixed SC-FDMA character positions in SRS in SRS cells
Some value in number.
Mode 2：SRS uses semi-static SC-FDMA character positions in SRS cells.Matched somebody with somebody by network side
Put, selected from above-mentioned symbol and configure one of them to UE.
Mode 3：SRS uses dynamic SC-FDMA character positions in SRS cells.Character position is under
Row control channel PDCCH or interface-free resources (Enhanced Physical Downlink Control Channel)
Downlink Control Information (Downlink Control Information) DCI instructions of EPDCCH carryings, from
Above-mentioned symbol selects one of them.
Static state, version static state and dynamic setting SRS areas can be realized by above-mentioned three kinds of modes
Position and pass through which kind of subframe and carry SRS, improve operability.Entered for mode 3 by existing signaling
Row configuration, can reduce signaling consumption, improve resource utilization.
Wherein, above-mentioned symbol is the SRS areas set in common sub- town or special subframe.
Above-mentioned embodiment is specifically described below by several specifically used scenes：
Scene one：
As shown in figure 4, in triggering type 0, conventional CP (Normal CP), SC-FDMA symbols
Position can symbolization 6,7,8,9,10.Accorded with by preceding 3 SC-FDMA of system bandwidth subframe
Number it is reserved as control zone；M SC-FDMA symbol is reserved as transition zone by RF conversion time, under
Conversion time in figure is 3 symbols；The last M SC-FDMA symbols of certain subframe as transition zone,
So some symbols in the centre of certain subframe are SRS areas (also known as candidate SRS areas) in SRS cells, it is optional
It is configured to the character position shared by SRS transmission.
Scene two：
As shown in figure 5, in triggering type 0, when extending CP (Normal CP), SC-FDMA symbols
Position can symbolization 6,7,8.Preceding 3 SC-FDMA symbols of certain subframe are determined by system bandwidth
It is reserved as control zone；M SC-FDMA symbol is reserved as transition zone, figure below by RF conversion time
In conversion time be 3 symbols；The last M SC-FDMA symbols of certain subframe as transition zone,
So some symbols in the centre of certain subframe are candidate SRS areas in SRS cells, it is optional to be configured to SRS transmission
Shared character position.
Scene three
As shown in fig. 6, in triggering type 0, normal CP, the extra UpPTS of 4 symbols is supported,
DwPTS:GP:UpPTS symbol ratio is 3：7：4.Section length is changed as 3, then symbol 10 can be used for matching somebody with somebody
It is set to the SRS resource (also known as SRS areas) of SRS cells.
Scene four：
As shown in fig. 7, in triggering Class1, conventional CP (Normal CP), SC-FDMA symbols
Position can symbolization 6,7,8,9,10,11,12,13.I.e. by before system bandwidth subframe 3
Individual SC-FDMA symbols are reserved as control zone；M SC-FDMA symbol is reserved by RF conversion time
As transition zone, the conversion time in figure below is 3 symbols；So in SRS cells behind certain subframe
Some symbols are candidate SRS areas, the optional character position being configured to shared by SRS transmission.
Example five：
As shown in figure 8, in triggering Class1, when extending CP (Normal CP), SC-FDMA symbols
Position can symbolization 6,7,8,9,10,11.Preceding 3 SC-FDMA of certain subframe are determined by system bandwidth
Symbol is reserved as control zone；M SC-FDMA symbol is reserved as transition zone by RF conversion time,
Conversion time in figure below is 3 symbols；So some symbols are time behind certain subframe in SRS cells
Select SRS areas, the optional character position being configured to shared by SRS transmission.
Scene six
As shown in figure 9, triggering Class1, normal CP schematic diagram, support 4 symbols extra UpPTS,
DwPTS:GP:UpPTS symbol ratio is 3：7：4.Section length is changed as 3, then symbol 10,11,12,
13 are used equally for being configured to the SRS resource of SRS cells.
Example IV
Figure 10 is the structural representation of the transmitting device for the detection reference signal that the embodiment of the present invention four provides,
Described device is located in base station, and optionally, base station eNB, the device includes:
Symbol determining unit 11, for the subframe type according to target-subframe and preamble CP types are circulated, from
Will continuous at least one single-carrier frequency division multiple access in the SC-FDMA symbols of the target-subframe
SC-FDMA symbols are defined as detection reference signal SRS areas and at least one transition zone, the transition zone bag
Adjacent with the SRS areas and continuous at least one SC-FDMA symbol is included, the SRS areas are used for
Detection reference signal SRS symbols are carried, the transition zone is used to carry out radio frequency conversion；
Dispensing unit 12, for configuring the SRS of the determination of symbol determining unit 11 for user equipment (UE)
Area and transition zone.
Further, the symbol determining unit 11, including：
Preamble cyclical patterns obtains subelement 111, if being common subframe for target-subframe, obtains institute
The preamble circulation CP types of common subframe are stated, the CP types are conventional CP or extension CP；
Common subframe symbol determination subelement 112, for obtaining subelement 111 according to the preamble cyclical patterns
The preamble circulation CP types obtained, will continuously at least from the SC-FDMA of the common subframe
One SC-FDMA symbol is defined as SRS areas and at least one transition zone, SRS in the extension CP
Area takes SC-FDMA symbol quantities and is less than occupancy SC-FDMA symbolic numbers in SRS areas in the conventional CP
Amount.
Further, the symbol determining unit 11, including：
Special subframe symbol determination subelement 113, if being special subframe for the target-subframe type,
Then will continuous at least one SC-FDMA symbols in the ascending pilot frequency UpPTS time slot of the special subframe
Number it is defined as SRS areas and at least one transition zone.
Further, the special subframe symbol determination subelement 113 is specifically used for：
When SRS triggering types is trigger type 0, if UE is configured to support 2 or 4 extra UpPTS
Symbol, if then UpPTS time slot length is more than conversion section length M, according to the last of the target-subframe
One UpPTS symbol and conversion section length M determine transition zone, by except the UpPTS of transition zone outer symbol
Symbol is as SRS areas；
When SRS triggering types is trigger Class1, by whole UpPTS symbols as SRS areas.
Further, the symbol determining unit 11 is specifically used for：
If SRS triggering type is triggering type 0, or, the triggering type of the SRS is triggering
Next subframe of Class1 and the target-subframe is descending sub frame or special subframe, or, the SRS
Triggering type for triggering Class1 and the target-subframe next subframe uplink subframe and the up son
Upstream data in frame be present, then according to the subframe type of target-subframe and CP types, from the target-subframe
SC-FDMA symbols in continuous at least one SC-FDMA symbols are defined as SRS areas and two turn
Area is changed, the SRS areas are adjacent with the first transition zone and the second transition zone respectively, first transition zone
Last symbol is adjacent with the first SC-FDMA in the SRS areas；First of second transition zone
Symbol is adjacent with last SC-FDMA symbol in the SRS areas.
Further, the symbol determining unit 11 is specifically used for：By the preceding C of the target-subframe
SC-FDMA symbols are reserved as control zone；
M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；
By the last M SC-FDMA symbols of the target-subframe as the second transition zone
By remaining SC-FDMA symbols in the target-subframe as SRS areas.
Further, the symbol determining unit 11 is specifically used for：
If without upstream data in next subframe uplink subframe of the target-subframe and the sub-frame of uplink,
Then according to the subframe type of target-subframe and CP types, from the SC-FDMA symbols of the target-subframe
Continuous at least one SC-FDMA symbols are defined as SRS areas, at least one SC-FDMA symbols
Number include last SC-FDMA symbol of the target-subframe；The last symbol of the transition zone
It is adjacent with the first SC-FDMA in the SRS areas.
Further, the symbol determining unit 11 is specifically used for：
The preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；
M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；
By remaining SC-FDMA symbols in the target-subframe as SRS areas.
Further, the dispensing unit 12 is specifically used for：
When SRS types are Class1, pass through down control channel PDCCH or EPDCCH carrying
DCI is indicated, the SRS areas determined and transition zone are configured for UE.
Said apparatus can perform the method that the embodiment of the present invention one is provided to embodiment three, and it is above-mentioned to possess execution
The corresponding functional module of method and beneficial effect.Not ins and outs of detailed description in the present embodiment, can join
See the method that the embodiment of the present invention one is provided to embodiment three.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row is various significantly to be changed, readjust and substitutes without departing from protection scope of the present invention.Therefore, though
So the present invention is described in further detail by above example, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, other more equivalent embodiments can also be included,
And the scope of the present invention is determined by scope of the appended claims.
Claims (18)
- A kind of 1. transmission method of detection reference signal, it is characterised in that including：According to the subframe type of target-subframe and circulation preamble CP types, from the target-subframe Continuous at least one single-carrier frequency division multiple access SC-FDMA symbols are defined as visiting in SC-FDMA symbols Survey reference signal SRS areas and at least one transition zone, the transition zone include it is adjacent with the SRS areas and Continuous at least one SC-FDMA symbol, the SRS areas are used to carry detection reference signal SRS Symbol, the transition zone are used to carry out radio frequency conversion；The SRS areas determined for user equipment (UE) configuration and transition zone.
- 2. the transmission method of detection reference signal according to claim 1, it is characterised in that described , will be continuous from the SC-FDMA of the target-subframe according to the subframe type of target-subframe and CP types At least one SC-FDMA symbols be defined as SRS areas and at least one transition zone, including：If target-subframe is common subframe, the preamble circulation CP types of the common subframe, institute are obtained CP types are stated as conventional CP or extension CP；CP types are circulated according to the preamble, from the SC-FDMA of the common subframe will continuously to A few SC-FDMA symbol is defined as SRS areas and at least one transition zone, SRS in the extension CP Area takes SC-FDMA symbol quantities and is less than occupancy SC-FDMA symbolic numbers in SRS areas in the conventional CP Amount.
- 3. the transmission method of detection reference signal according to claim 1, it is characterised in that described , will be continuous from the SC-FDMA of the target-subframe according to the subframe type of target-subframe and CP types At least one SC-FDMA symbols be defined as SRS areas and at least one transition zone, including：If the target-subframe type is special subframe, in the ascending pilot frequency UpPTS of the special subframe Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one transition zone in time slot.
- 4. the transmission method of detection reference signal according to claim 3, it is characterised in that described If the target-subframe type is special subframe, in the ascending pilot frequency UpPTS of the special subframe Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one transition zone in gap, including：When SRS triggering types is trigger type 0, if UE is configured to support 2 or 4 extra UpPTS Symbol, if then UpPTS time slot length is more than conversion section length M, according to the last of the target-subframe One UpPTS symbol and conversion section length M determine transition zone, by except the UpPTS of transition zone outer symbol Symbol is as SRS areas；When SRS triggering types is trigger Class1, by whole UpPTS symbols as SRS areas.
- 5. the transmission method of detection reference signal according to claim 1, it is characterised in that described , will from the SC-FDMA symbols of the target-subframe according to the subframe type of target-subframe and CP types Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one transition zone, including：If SRS triggering type is triggering type 0, or, the triggering type of the SRS is triggering Next subframe of Class1 and the target-subframe is descending sub frame or special subframe, or, the SRS Triggering type for triggering Class1 and the target-subframe next subframe uplink subframe and the up son Upstream data in frame be present, then according to the subframe type of target-subframe and CP types, from the target-subframe SC-FDMA symbols in continuous at least one SC-FDMA symbols are defined as SRS areas and two turn Area is changed, the SRS areas are adjacent with the first transition zone and the second transition zone respectively, first transition zone Last symbol is adjacent with the first SC-FDMA in the SRS areas；First of second transition zone Symbol is adjacent with last SC-FDMA symbol in the SRS areas.
- 6. the transmission method of detection reference signal according to claim 5, it is characterised in that described , will from the SC-FDMA symbols of the target-subframe according to the subframe type of target-subframe and CP types Continuous at least one SC-FDMA symbols are defined as SRS areas and two transition zones, and the SRS is distinguished It is not adjacent with the first transition zone and the second transition zone, the last symbol of first transition zone with it is described First SC-FDMA in SRS areas is adjacent；First symbol of second transition zone and the SRS areas Last SC-FDMA symbol it is adjacent, including：The preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；By the last M SC-FDMA symbols of the target-subframe as the second transition zoneBy remaining SC-FDMA symbols in the target-subframe as SRS areas.
- 7. the transmission method of detection reference signal according to claim 1, it is characterised in that described , will from the SC-FDMA symbols of the target-subframe according to the subframe type of target-subframe and CP types Continuous at least one SC-FDMA symbols are defined as SRS areas and at least one transition zone, including：If without upstream data in next subframe uplink subframe of the target-subframe and the sub-frame of uplink, Then according to the subframe type of target-subframe and CP types, from the SC-FDMA symbols of the target-subframe Continuous at least one SC-FDMA symbols are defined as SRS areas, at least one SC-FDMA symbols Number include last SC-FDMA symbol of the target-subframe；The last symbol of the transition zone It is adjacent with the first SC-FDMA in the SRS areas.
- 8. the transmission method of detection reference signal according to claim 7, it is characterised in that described Continuous at least one SC-FDMA symbols are defined as from the SC-FDMA symbols of the target-subframe SRS areas, at least one SC-FDMA symbols include last SC-FDMA of the target-subframe Symbol；The last symbol of the transition zone is adjacent with the first SC-FDMA in the SRS regions, bag Include：The preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；By remaining SC-FDMA symbols in the target-subframe as SRS areas.
- 9. the transmission method of the detection reference signal according to any one of claim 1-8, its feature It is, the SRS areas determined for UE configurations and transition zone, including：When SRS types are Class1, pass through down control channel PDCCH or EPDCCH carrying DCI is indicated, the SRS areas determined and transition zone are configured for UE.
- A kind of 10. transmitting device of detection reference signal, it is characterised in that including：Symbol determining unit, for the subframe type according to target-subframe and circulation preamble CP types, from institute Stating will continuous at least one single-carrier frequency division multiple access SC-FDMA in the SC-FDMA symbols of target-subframe Symbol is defined as detection reference signal SRS areas and at least one transition zone, the transition zone include with it is described The adjacent and continuous at least one SC-FDMA in SRS areas symbol, the SRS areas, which are used to carry, to be detected Reference signal SRS symbols, the transition zone are used to carry out radio frequency conversion；Dispensing unit, for configuring the SRS areas of the symbol determining unit determination for user equipment (UE) and turning Change area.
- 11. the transmitting device of detection reference signal according to claim 10, it is characterised in that institute Symbol determining unit is stated, including：Preamble cyclical patterns obtains subelement, if being common subframe for target-subframe, obtains described general The preamble circulation CP types of logical subframe, the CP types are conventional CP or extension CP；Common subframe symbol determination subelement, for obtaining what subelement obtained according to the preamble cyclical patterns The preamble circulates CP types, will be continuous at least one from the SC-FDMA of the common subframe SC-FDMA symbols are defined as SRS areas and at least one transition zone, and SRS areas take in the extension CP SC-FDMA symbol quantities are less than SRS areas in the conventional CP and take SC-FDMA symbol quantities.
- 12. the transmitting device of detection reference signal according to claim 10, it is characterised in that institute Symbol determining unit is stated, including：Special subframe symbol determination subelement, if being special subframe for the target-subframe type, It is in the ascending pilot frequency UpPTS time slot of the special subframe that continuous at least one SC-FDMA symbols is true It is set to SRS areas and at least one transition zone.
- 13. the transmitting device of detection reference signal according to claim 12, it is characterised in that institute Special subframe symbol determination subelement is stated to be specifically used for：When SRS triggering types is trigger type 0, if UE is configured to support 2 or 4 extra UpPTS Symbol, if then UpPTS time slot length is more than conversion section length M, according to the last of the target-subframe One UpPTS symbol and conversion section length M determine transition zone, by except the UpPTS of transition zone outer symbol Symbol is as SRS areas；When SRS triggering types is trigger Class1, by whole UpPTS symbols as SRS areas.
- 14. the transmitting device of detection reference signal according to claim 10, it is characterised in that institute Symbol determining unit is stated to be specifically used for：If SRS triggering type is triggering type 0, or, the triggering type of the SRS is triggering Next subframe of Class1 and the target-subframe is descending sub frame or special subframe, or, the SRS Triggering type for triggering Class1 and the target-subframe next subframe uplink subframe and the up son Upstream data in frame be present, then according to the subframe type of target-subframe and CP types, from the target-subframe SC-FDMA symbols in continuous at least one SC-FDMA symbols are defined as SRS areas and two turn Area is changed, the SRS areas are adjacent with the first transition zone and the second transition zone respectively, first transition zone Last symbol is adjacent with the first SC-FDMA in the SRS areas；First of second transition zone Symbol is adjacent with last SC-FDMA symbol in the SRS areas.
- 15. the transmitting device of detection reference signal according to claim 14, it is characterised in that institute Symbol determining unit is stated to be specifically used for：The preceding C SC-FDMA symbols of the target-subframe are reserved as controlling Area processed；M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；By the last M SC-FDMA symbols of the target-subframe as the second transition zoneBy remaining SC-FDMA symbols in the target-subframe as SRS areas.
- 16. the transmitting device of detection reference signal according to claim 10, it is characterised in that institute Symbol determining unit is stated to be specifically used for：If without upstream data in next subframe uplink subframe of the target-subframe and the sub-frame of uplink, Then according to the subframe type of target-subframe and CP types, from the SC-FDMA symbols of the target-subframe Continuous at least one SC-FDMA symbols are defined as SRS areas, at least one SC-FDMA symbols Number include last SC-FDMA symbol of the target-subframe；The last symbol of the transition zone It is adjacent with the first SC-FDMA in the SRS areas.
- 17. the transmitting device of detection reference signal according to claim 16, it is characterised in that institute Symbol determining unit is stated to be specifically used for：The preceding C SC-FDMA symbols of the target-subframe are reserved as control zone；M SC-FDMA symbol is reserved as the first transition zone according to the conversion time of radio frequency；By remaining SC-FDMA symbols in the target-subframe as SRS areas.
- 18. the transmitting device of the detection reference signal according to any one of claim 10-17, it is special Sign is that the dispensing unit is specifically used for：When SRS types are Class1, pass through down control channel PDCCH or EPDCCH carrying DCI is indicated, the SRS areas determined and transition zone are configured for UE.
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