CN106788927A - The sending method and device of SRS - Google Patents
The sending method and device of SRS Download PDFInfo
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- CN106788927A CN106788927A CN201610320087.XA CN201610320087A CN106788927A CN 106788927 A CN106788927 A CN 106788927A CN 201610320087 A CN201610320087 A CN 201610320087A CN 106788927 A CN106788927 A CN 106788927A
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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
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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Abstract
The sending method and device of a kind of SRS, the sending method include：Receive the configuration information of the SRS that network side sends；Using remaining for UE carries out the preset duration of carrier sense in advance between every two neighboring up SC FDMA symbols in the UpPTS regions of special subframe, so that each UE sends SRS based on configuration information after carrier sense success in corresponding up SC FDMA symbols；Or all UE carry out carrier sense using the preset duration reserved in the GP before first up SC FDMA symbol in the UpPTS regions of special subframe, and after carrier sense success, each UE be based on the configuration information its configured for send SRS up SC FDMA symbols before all up SC FDMA symbols in send SRS for preempting channel, until sending SRS in the up SC FDMA symbols that it is configured.The technical program solves the problems, such as that SRS transmission is blocked.
Description
Technical field
The present invention relates to LAA technical fields, more particularly to a kind of SRS sending method and device.
Background technology
In recent years, with the popularization of mobile device and mobile data flow, the surge of cable network flow,
The network capacity pressure of operator rises violently.However, frequency spectrum resource is short；In frequency range is authorized, especially
Value low-frequency range resource higher, not only frequency of use is limited, and rapid by the customer group of rapid development
Consumption.In global range, 5GHz exempts from licensed band and also possesses significant component of usable spectrum, operator
With equipment commercial city network capacity is lifted in exploration using unlicensed spectrum.Therefore, frequency spectrum auxiliary is authorized to connect
Enter (Licensed Assisted Access, LAA) technology, exempt from licensed spectrum also known as licensed band auxiliary and access
Technology is arisen at the historic moment, and LAA carries the data traffic of Information Mobile Service by using licensed band is exempted from, so as to increase
Big network capacity.
Begged in 3GPP (3rd Generation Partnership Project, third generation partner program) at present
In, it has been determined that LAA can be transmitted on unauthorized carrier wave SRS (Sounding Reference Signal,
Sounding Reference Signal), and not with PUSCH (Physical Uplink Shared Channel, it is up
Physical Shared Channel) transmit together aperiodic SRS (Sounding Reference Signal, detection reference
Signal) can be transmitted after special subframe, but needed to carry out carrier sense before SRS transmission.But work as
There is continuous multiple available up SC-FDMA (Single-carrier in the UpPTS regions of special subframe
Frequency-Division Multiple Access, single-carrier frequency division multiple access) symbol can serve as multiple UE
During the SRS transmission of (User Equipment, user equipment), wherein first up SC-FDMA is assigned to
The transimission power of the SRS (may come from multiple UE) of symbol can prevent follow-up up SC-FDMA from according with
SRS transmission in number, because the corresponding UE of up SC-FDMA symbols below carries out carrier sense
When can listen to the SRS power of UE in above up SC-FDMA symbols, can so cause below is upper
Row SC-FDMA symbols cannot be used, and carry out the SRS capacity of influence system.
Fig. 1 is there are multiple up SC-FDMA symbols in the UpPTS regions of special subframe in the prior art
When SRS transmission obstructing problem frame structure schematic diagram.
As shown in figure 1, having two up SC-FDMA symbols (i.e. symbol S0 and symbol in UpPTS regions
Number S1), can be in the CCA window within GP (protection interval) before the SRS transmission of symbol S0
Carrier sense is inside carried out, if carrier sense success, UE can carry out SRS transmission in symbol S0, but
Carry out the UE of SRS transmission in symbol S1, it is necessary to before symbol S1 (i.e. the afterbody of symbol S0) for configuring
Carry out carrier sense.It is contemplated that, as long as having UE in symbol S0 carrying out SRS transmission, then configure in symbol
The UE that number S1 carries out SRS transmission may monitor corresponding SRS power when carrying out carrier sense, so that
Judge that channel is busy, it is impossible to carry out corresponding SRS transmissions.
The content of the invention
What the present invention was solved is the presence of multiple up SC-FDMA symbols in the UpPTS regions of special subframe
Number when SRS transmission obstruction problem.
To solve the above problems, a kind of sending method of SRS is the embodiment of the invention provides, including it is as follows
Step：
Receive the configuration information of the SRS that network side sends；
SRS is sent using a kind of mode in following processing mode：
1) it is pre- between in the UpPTS regions of special subframe per two neighboring up SC-FDMA symbols
Remaining for UE carries out the preset duration of carrier sense, so that each UE is based on institute after carrier sense success
State configuration information and send SRS in corresponding up SC-FDMA symbols；
2) before all UE are using first up SC-FDMA symbol in the UpPTS regions of special subframe
GP in the preset duration reserved carry out carrier sense, and after carrier sense success, each UE is based on
The configuration information its configured for send SRS up SC-FDMA symbols before it is all
The SRS for preempting channel is sent in up SC-FDMA symbols, until its configured it is up
SRS is sent in SC-FDMA symbols.
Optionally, according to described every two neighboring up in the UpPTS regions of special subframe
Remain for the mode that UE carries out the preset duration of carrier sense in advance between SC-FDMA symbols, described
The end position and the special subframe of last the up SC-FDMA symbol in UpPTS regions
Sub-frame boundary aligns；Or the stop bits of last the up SC-FDMA symbol in UpPTS regions
Put and alignd with the end position of the 13rd symbol of special subframe；Or last in UpPTS regions
The end position of individual up SC-FDMA character positions is default end position or is configured by base station
To UE's.
Optionally, using described every two neighboring up in the UpPTS regions of special subframe
Between SC-FDMA symbols in the pre- mode for remaining for the preset duration that UE carries out carrier sense, UpPTS
It is reserved with for being configured at described first in GP in region before first up SC-FDMA symbol
The UE of SRS is sent in up SC-FDMA symbols carries out the preset duration of carrier sense.
Optionally, described each UE be based on the configuration information its configured for sending SRS's
Sent for preempting channel in all up SC-FDMA symbols before up SC-FDMA symbols
SRS, until SRS is sent in the up SC-FDMA symbols that it is configured including：
All UE of SRS are sent in first up SC-FDMA symbol for configuring, then according to institute
State configuration information and send SRS in described first up SC-FDMA symbol；
Each UE of SRS is sent in n-th up SC-FDMA symbol for configuring, then first
The SRS for preempting channel is all sent in individual to (n-1)th up SC-FDMA symbol, and described in it
N-th up SC-FDMA symbol in send SRS；Wherein, 2<=n<=UpPTS is used in region
Send the total number of the SC-FDMA symbols of SRS.
Optionally, it is described all to be sent for preempting in first to (n-1)th up SC-FDMA symbol
The SRS of channel includes：Choose up in first to (n-1)th up SC-FDMA symbol
A SRS resource in SC-FDMA symbols sends the SRS for preempting channel.
Optionally, the SRS resource includes：One in SRS Comb and a cyclic shift.
Optionally, the configuration information of the SRS resource is believed by predetermined manner or network side by high-rise
Order is configured to UE.
Optionally, be not used for need to be at described first to (n-1)th based on configuration information for the SRS resource
The UE that SRS is sent in individual up SC-FDMA symbols is used when sending SRS.
Optionally, the SRS configuration informations for receiving network side transmission include：By RRC signaling or thing
Reason layer signaling receives the configuration information of the SRS that network side is issued.
Optionally, the preset duration is the length of 25 microseconds or a up SC-FDMA symbol.
The embodiment of the present invention additionally provides a kind of dispensing device of SRS, including：
Receiving unit, the configuration information of the SRS for receiving network side transmission；
First processing units or second processing unit；Wherein,
The first processing units are used in the UpPTS regions of special subframe per two neighboring up
Remaining for UE carries out the preset duration of carrier sense in advance between SC-FDMA symbols, so that each UE exists
SRS is sent in corresponding up SC-FDMA symbols based on the configuration information after carrier sense success；
The second processing unit is used for all UE using first in the UpPTS regions of special subframe
The preset duration reserved in GP before row SC-FDMA symbols carries out carrier sense, and carrier sense into
After work(, each UE be based on the configuration information its configured for sending the up of SRS
The SRS for preempting channel is sent in all up SC-FDMA symbols before SC-FDMA symbols,
Until sending SRS in the up SC-FDMA symbols that it is configured.
Optionally, in the first processing units, last in the UpPTS regions is up
The end position of SC-FDMA symbols aligns with the sub-frame boundary of the special subframe；Or UpPTS areas
The end position of last the up SC-FDMA symbol in domain and the 13rd symbol of special subframe
End position aligns；Or the knot of last the up SC-FDMA character position in UpPTS regions
Beam position is default end position or is allocated to UE's by base station.
Optionally, in the second processing unit, first up SC-FDMA in UpPTS regions
It is reserved with GP before symbol for being configured to be sent in described first up SC-FDMA symbol
The UE of SRS carries out the preset duration of carrier sense.
Optionally, the second processing unit includes：
First treatment subelement, for sending SRS in first up SC-FDMA symbol for configuring
All UE, then sent in described first up SC-FDMA symbol according to the configuration information
SRS；
Second processing subelement, for sending SRS in n-th up SC-FDMA symbol for configuring
Each UE, then all sent in first to (n-1)th up SC-FDMA symbol for preempt believe
SRS is sent in the SRS in road, and n-th up SC-FDMA symbol described in it；Wherein,
2<=n<In=UpPTS regions be used for send SRS SC-FDMA symbols total number.
Optionally, the second processing subelement is used in first to (n-1)th up SC-FDMA symbol
A SRS resource in up SC-FDMA symbols is chosen in number and sends SRS for preempting channel.
Optionally, the SRS resource includes：One in SRS Comb and a cyclic shift.
Optionally, the configuration information of the SRS resource is believed by predetermined manner or network side by high-rise
Order is configured to UE.
Optionally, be not used for need to be at described first to (n-1)th based on configuration information for the SRS resource
The UE that SRS is sent in individual up SC-FDMA symbols is used when sending SRS.
Optionally, the preset duration is the length of 25 microseconds or a up SC-FDMA symbol.
Compared with prior art, technical scheme has the advantages that：
Based on LAA technologies, there are multiple up SC-FDMA in the UpPTS regions of special subframe
When symbol is used to send SRS, in order to avoid the problem for SRS transmission obstruction occur, the embodiment of the present invention is carried
Two kinds of processing modes are supplied, end side can select one of which processing method to send in actual applications
SRS.It is specific as follows：
1) remaining for UE in advance before each up SC-FDMA symbol carries out the default of carrier sense
Duration, so as to be carried before ensureing the up SC-FDMA symbols that all UE can be configured at it
Ripple is intercepted, and when channel idle is judged, UE sends in the up SC-FDMA symbols that it is configured
SRS；
2) before all UE are using first up SC-FDMA symbol in the UpPTS regions of special subframe
GP in the preset duration reserved carry out carrier sense, and when channel idle is judged, each UE is based on
The configuration information its configured for send SRS up SC-FDMA symbols before it is all
The SRS for preempting channel is sent in up SC-FDMA symbols, until its configured it is up
SRS is sent in SC-FDMA symbols.Further, the transmission of configuration is used to preempt the SRS resource of channel
Not be used to be used when UE normally sends SRS.
UE can so be made can in advance occupy channel before normally sending SRS, and not influence other UE
It is normal to send SRS.So as to ensure that UE is matched somebody with somebody on the premise of the transmission rule of unauthorized carrier wave is met at it
SRS is sent on the up SC-FDMA symbols put.
Brief description of the drawings
Fig. 1 is there are multiple up SC-FDMA symbols in the UpPTS regions of special subframe in the prior art
Number when SRS transmission obstructing problem frame structure schematic diagram；
Fig. 2 is that a kind of flow of the specific embodiment of the sending method of SRS of the embodiment of the present invention is illustrated
Figure；
Fig. 3 A are the frame structure schematic diagrames of an instantiation of employing mode one；
Fig. 3 B are the frame structure schematic diagrames of another instantiation of employing mode one；
Fig. 4 A are the frame structure schematic diagrames of an instantiation of employing mode two；
Fig. 4 B are the frame structure schematic diagrames of another instantiation of employing mode two；
Fig. 5 is a kind of structural representation of the specific embodiment of the dispensing device of SRS.
Specific embodiment
As stated in the Background Art, in LTE system, there is multiple in the UpPTS regions of special subframe
The problem of SRS transmission obstruction during up SC-FDMA symbols.
In order to solve the above problems, the sending method and device of a kind of SRS are the embodiment of the invention provides.
Can ensure to configure at least 2 situations of up SC-FDMA symbols as UpPTS using the technical program
Under, different UE can carry out SRS transmissions on different up SC-FDMA symbols, solve
Block the SRS of up SC-FDMA symbols below because of the above SRS transmission of up SC-FDMA symbols
Transmission problem, the capacity of SRS is sent so as to ensure that based on UE in LAA technologies.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
Specific embodiment of the invention is described in detail.
The technical program is applied to LTE system, and in LTE system, eNodeB is estimated using SRS
The uplink signal-channel quality of different frequency range.The scheduler of eNodeB sides can according to " uplink channel status estimation ",
By good those PRB (Physical Resource Block, the Physical Resource Block) distribution of instantaneous channel state
To the ascending physical signal shared channel transmission of UE, while different configured transmissions can be selected (for example, instantaneous
Data rate), and the related different parameters of selection correspondence upstream multi-antenna transmission are (i.e. for " upper line frequency
Rate is selectively dispatched ").SRS can be additionally used in estimation uplink synchronous, and assuming that descending/up channel is mutually beneficial
Situation (especially TDD) under, estimate down channel quality using channel symmetry.
Different from DMRS (for upload control and the correlation demodulation of data channel), SRS might not
To be transmitted together with any uplink physical channel.But if SRS and other physical channels (such as PUSCH)
When transmitting together, SRS would generally cover a difference and generally bigger frequency band.
LTE system defines the SRS transmission of 2 types, respectively：
1) periodicity SRS (periodic SRS, correspondence trigger type 0)：Introduced in Release-8,
Configured by RRC.
2) aperiodicity SRS (non-periodic SRS, correspondence trigger type 1)：In Release-10
Introduce.For FDD, eNodeB can trigger UE and send aperiodicity by DCI format 0/4/1A
SRS.For TDD, eNodeB can trigger UE and send non-by DCI format 0/4/1A/2B/2C
Periodicity SRS.
If UE needs the same subframe in same Serving cell to send periodicity SRS and aperiodicity
SRS, then UE can only send aperiodicity SRS.
For TDD, if a UpPTS for Serving cell includes 1 SC-FDMA symbol,
Then the symbol can be used for SRS transmission；If a UpPTS for Serving cell includes 2 SC-FDMA
Symbol, then this 2 symbols can be used in SRS transmission, and can simultaneously distribute to same UE.
The SRS signal multiplexing of multiple UE can be carried out in one SC-FDMA symbol, including using not
The cyclic shift of same SRS Comb and SRS sequences distinguishes different UE.
Further, based on LAA technologies, LAA is worked on unauthorized carrier wave frequency range, it is therefore desirable to according to
According to the rule on unauthorized carrier wave, UE needed to carry out carrier sense before sending signal, to determine channel
Busy situation, only when channel for it is idle when, equipment can just carry out signal transmission.
In for LAA, current standard clearly, only supports the transmission of aperiodic SRS in LAA,
And SRS can be in last SC-FDMA symbol transmission of sub-frame of uplink.When SRS is individually transmitted,
That is when SRS is not with PUSCH transmission, SRS can at least be transmitted in the descender subframe of LAA.
For the SRS of independent transmission, if the transmission of SRS is positioned at the MCOT (maximum of LAA base stations
Continuous transmission time, maximum continuously transmits duration) within, it is only necessary to use a length
For the carrier sense window of 25 microseconds carries out carrier sense；If conversely, the transmission of SRS is located at LAA bases
Outside the MCOT for standing, then mechanism specified in the class 4 using the LBT of the definition in LAA is needed
Carry out carrier sense.
Here, it is necessary to explanation, MCOT is the maximum after equipment seizes channel on unauthorized carrier wave
Duration can be continuously transmitted.The requirement of different countries and regions is not quite similar, for example Japan's regulation MCOT
It is 4ms.And 3GPP is directed to different business LBT priority levels, the MCOT for being given is also different, example
As LBT priority levels 1/2/3/4 MCOT be respectively 2ms, 3ms, 10ms or 8ms, 10ms or
8ms.For priority level 3/4, if according to frequency specification, determining to be not in LAA in some frequency ranges
The equipment of the technology of other unauthorized carrier operations of support in addition, then MCOT values are 10 milliseconds, no
Then MCOT values are 8 milliseconds.
Descender subframe for LAA is (similar to the special son of LTE frame structure type 2s (TDD)
Frame).Several symbols are downlink symbol (DwPTS) before descender subframe, followed by can be upper
Descending protection interval (GP), behind can be uplink symbol (UpPTS).Although at present under LAA
The length of row part subframe does not have clear stipulaties, but with reference to the design of current TDD subframes, LAA's
The UpPTS regions of descender subframe can have 1 to arrive multiple up.For example, when descender subframe
The length of DwPTS is 3 or 6 symbols, and UpPTS symbol lengths can be 4 with value.
As shown in Fig. 2 the specific embodiment of the sending method of a kind of SRS of the embodiment of the present invention
Schematic flow sheet.With reference to Fig. 2, the sending method of SRS comprises the following steps：
Step S1：Receive the configuration information of the SRS that network side sends；
Step S2：SRS is sent using a kind of mode in following processing mode：
1) reserved between in the UpPTS regions of special subframe per two neighboring up SC-FDMA symbols
The preset duration of carrier sense is carried out for UE so that each UE after carrier sense success based on described
Configuration information sends SRS in corresponding up SC-FDMA symbols；
2) before all UE are using first up SC-FDMA symbol in the UpPTS regions of special subframe
GP in the preset duration reserved carry out carrier sense, and after carrier sense success, each UE is based on
The configuration information its configured for send SRS up SC-FDMA symbols before it is all
The SRS for preempting channel is sent in up SC-FDMA symbols, until its configured it is up
SRS is sent in SC-FDMA symbols.
In the present embodiment, UE can receive network side and issue by RRC signaling or physical layer signaling
SRS configuration information.
In order to avoid SRS transmission obstructing problem, two kinds of processing modes are present embodiments provided, with reference to tool
Body embodiment describes both processing modes in detail.
Mode one
As described in step S2, a kind of processing mode is：Per phase in the UpPTS regions of special subframe
Remaining for UE carries out the preset duration of carrier sense in advance between adjacent two up SC-FDMA symbols, so that
Each UE is after carrier sense success based on the configuration information in corresponding up SC-FDMA symbols
Send SRS.
Specifically, according to prior art, before first up SC-FDMA symbol in UpPTS regions
GP in be reserved with for be configured in described first up SC-FDMA symbol send SRS UE
Carry out the preset duration of carrier sense.On this basis, inventor further considers up at each
Its corresponding preset duration for carrier sense is reserved before SC-FDMA symbols, so as to ensure own
Carrier sense is carried out before the up SC-FDMA symbols that UE can be configured at it.
For example, shown in Fig. 3 A be using present treatment mode an instantiation frame structure schematic diagram.
With reference to Fig. 3 A, when there is two up SC-FDMA symbols in UpPTS regions, for configuring first
Before the SRS transmission of individual SC-FDMA symbols S0, UE can be in the GP before SC-FDMA symbols S0
Preset duration (CCA (the Clear Channel Assessment, free time as shown in fig. 3 of interior interception
Channel estimating) window.For the SRS transmission in second SC-FDMA symbols S1 of configuration, Ke Yi
One preset duration is reserved between S0 and S1 to be used as to configure to enter in second SC-FDMA symbols S1
The UE of row SRS transmission carries out carrier sense.
It should be noted that compared to continuous two up SC-FDMA symbols shown in prior art
(with reference to S0, the S1 in Fig. 1), in the mode shown in Fig. 3 A, equivalent to by first up SC-FDMA
The original position of symbol (i.e. S0) has moved forward a preset duration.
Again for example, shown in Fig. 3 B be using present treatment mode another instantiation frame structure illustrate
Figure.With reference to Fig. 3 B, as the up SC-FDMA that there are two or more (such as 4) in UpPTS regions
Being each equipped with corresponding UE during symbol, in each up SC-FDMA symbol carries out SRS transmission, then divide
One is not reserved between up SC-FDMA symbols S0 and S1, between S1 and S2 and between S2 and S3
Preset duration (CCA window as shown in Figure 3 B) is used to carry out carrier sense before UE sends SRS.
It should be noted that in the mode shown in Fig. 3 B, last in UpPTS regions is up
The end position of SC-FDMA symbols aligns with the sub-frame boundary of the special subframe.Or, UpPTS areas
The end position of last the up SC-FDMA symbol in domain and the 13rd symbol of special subframe
End position aligns.Or, the knot of last the up SC-FDMA character position in UpPTS regions
Beam position is default end position or is allocated to UE's by base station.
Wherein, the symbol lengths in the DwPTS of the special subframe and GP length for network be pre-configured with to
UE's.
Mode two
As described in step S2, another processing mode is：All UE utilize the UpPTS areas of special subframe
The preset duration reserved in GP in domain before first up SC-FDMA symbol carries out carrier sense, and
Carrier sense success after, each UE be based on the configuration information its configured for sending SRS's
The SRS for preempting channel is sent in all up SC-FDMA symbols before row SC-FDMA symbols,
Until sending SRS in the up SC-FDMA symbols that it is configured.
Specifically, all UE within multiple up SC-FDMA symbols are configured at and use identical CCA
Window (preset duration reserved in the GP before i.e. first up SC-FDMA symbol) carries out carrier wave
Intercept.
If carrier sense is carried out in CCA window judges channel for idle, for configuring at first
All UE of SRS are sent in up SC-FDMA symbols, then according to the configuration information at described first
SRS is sent in up SC-FDMA symbols.
And for configuring each UE of the transmission SRS in n-th up SC-FDMA symbol, then first
All send the SRS for preempting channel in individual to (n-1)th up SC-FDMA symbol, and described in it
SRS is sent in n-th up SC-FDMA symbol.Wherein, 2<=n<It is used to send in=UpPTS regions
The total number of the SC-FDMA symbols of SRS.
Wherein, all sent for preempting channel in first to (n-1)th up SC-FDMA symbol
SRS can be implemented in the following way：Chosen in first to (n-1)th up SC-FDMA symbol
A SRS resource in up SC-FDMA symbols sends the SRS for preempting channel.Wherein, it is described
SRS resource includes：One in SRS Comb and a cyclic shift.
It should be noted that the SRS resource be not used for need to be at described first to the based on configuration information
The UE that SRS is sent in n-1 up SC-FDMA symbol is used when sending SRS.UE so can be made just
Channel can be in advance occupied before often sending SRS, and does not influence other UE normally to send SRS.So as to ensure
UE is on the premise of the transmission rule of unauthorized carrier wave is met in the up SC-FDMA symbols that it is configured
Upper transmission SRS.
, whereas if carrier sense is carried out in CCA window judges that channel is busy, then abandon corresponding
SRS transmission.
For example, as shown in Figure 4 A be using present treatment mode an instantiation frame structure schematic diagram.
With reference to Fig. 4 A, for configure after CCA window close to first up SC-FDMA symbol (i.e.
S0 UE), if carrier sense is carried out in CCA window judges channel for idle, direct basis
The configuration of network carries out corresponding SRS transmission, otherwise judges that channel is busy, then abandon corresponding SRS transmission.
For configure after CCA window close to second up SC-FDMA symbol (i.e. S1)
All UE, if carrier sense is carried out in CCA window judges channel for idle, up
A SRS for being used to preempt channel is sent in SC-FDMA symbols S0.Preferably, configure up at this
SRS transmissions of all UE of SC-FDMA symbols S1 in up SC-FDMA symbols S0 can be used
Identical SRS resource is reducing the occupancy to SRS resource in SC-FDMA symbols S0.
Further, for configure after CCA window close to second up SC-FDMA symbol
All UE of S1, sending one in the up SC-FDMA symbols S0 is used for after the SRS for preempting channel,
In up SC-FDMA symbols S1 normal SRS transmissions are carried out according to the configuration of base station.
Again for example, as shown in Figure 4 B be to be shown using the frame structure of another instantiation of present treatment mode
It is intended to.With reference to Fig. 4 B, there are 4 up SC-FDMA symbols in UpPTS regions, each is up
Corresponding UE is each equipped with SC-FDMA symbols carries out SRS transmission, then up except being configured at first
Carried out within SC-FDMA symbols outside the UE of SRS transmission, in all up SC-FDMA symbols below
Carried out in number the UE of SRS transmissions carried out in CCA window carrier sense judge signal for free time after,
Need to be sent in all up SC-FDMA symbols before its up SC-FDMA symbol for being configured
One SRS for being used to preempt channel, until being carried out in the up SC-FDMA symbols that it is configured normal
SRS sends.
In aforesaid way one and mode two, the preset duration is 25 microseconds or a up SC-FDMA
The length of symbol.
Based on the sending method of above-mentioned SRS, the embodiment of the present invention additionally provides a kind of dispensing device of SRS.
As shown in Fig. 5 the structural representation of the specific embodiment of the dispensing device of a kind of SRS of the invention.
With reference to Fig. 5, described device 1 includes：
Receiving unit 11, the configuration information of the SRS for receiving network side transmission；
First processing units 12 or second processing unit 13；Wherein,
The first processing units 12 are used in the UpPTS regions of special subframe per two neighboring up
Remaining for UE carries out the preset duration of carrier sense in advance between SC-FDMA symbols, so that each UE is being carried
Ripple is intercepted and successfully sends SRS in corresponding up SC-FDMA symbols based on the configuration information afterwards；
The second processing unit 13 is used for all UE using first in the UpPTS regions of special subframe
The preset duration reserved in GP before row SC-FDMA symbols carries out carrier sense, and in carrier sense success
Afterwards, each UE is based on the symbols of the up SC-FDMA for sending SRS that the configuration information is configured at it
The SRS for preempting channel is sent in all up SC-FDMA symbols number before, until being matched somebody with somebody at it
SRS is sent in the up SC-FDMA symbols put.
In specific implementation, the configuration information of the SRS resource passes through height by predetermined manner or network side
Layer signal deployment is to UE.
In the first processing units 12, last the up SC-FDMA in the UpPTS regions
The end position of symbol aligns with the sub-frame boundary of the special subframe.
In the second processing unit 13, in UpPTS regions before first up SC-FDMA symbol
It is reserved with GP and is entered for being configured to be sent in described first up SC-FDMA symbol the UE of SRS
The preset duration of row carrier sense.
The second processing unit 13 includes：First treatment subelement (not shown), for for configuring
All UE of SRS are sent in first up SC-FDMA symbol, then according to the configuration information described
SRS is sent in first up SC-FDMA symbol；
Second processing subelement (not shown), for for configuring in n-th up SC-FDMA symbol
Each UE of SRS is sent, is then all sent for pre- in first to (n-1)th up SC-FDMA symbol
Account for the SRS of channel, and SRS is sent in n-th up SC-FDMA symbol described in it；Wherein,
2<=n<In=UpPTS regions be used for send SRS SC-FDMA symbols total number.
Wherein, the second processing subelement is used in first to (n-1)th up SC-FDMA symbol
Choose a SRS resource in up SC-FDMA symbols and send SRS for preempting channel.The SRS
Resource includes：One in SRS Comb and a cyclic shift.The SRS resource is not used for base
The UE hairs of SRS need to be sent in described first to (n-1)th up SC-FDMA symbol in configuration information
Used when sending SRS.The preset duration is the length of 25 microseconds or a up SC-FDMA symbol.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in can with computer
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore guarantor of the invention
Shield scope should be defined by claim limited range.
Claims (19)
1. a kind of sending method of SRS, it is characterised in that comprise the following steps：
Receive the configuration information of the SRS that network side sends；
SRS is sent using a kind of mode in following processing mode：
1) it is pre- between in the UpPTS regions of special subframe per two neighboring up SC-FDMA symbols
Remaining for UE carries out the preset duration of carrier sense, so that each UE is based on institute after carrier sense success
State configuration information and send SRS in corresponding up SC-FDMA symbols；
2) before all UE are using first up SC-FDMA symbol in the UpPTS regions of special subframe
GP in the preset duration reserved carry out carrier sense, and after carrier sense success, each UE is based on
The configuration information its configured for send SRS up SC-FDMA symbols before it is all
The SRS for preempting channel is sent in up SC-FDMA symbols, until its configured it is up
SRS is sent in SC-FDMA symbols.
2. the sending method of SRS as claimed in claim 1, it is characterised in that according to described in special son
Remain for UE in advance between every two neighboring up SC-FDMA symbols in the UpPTS regions of frame to be carried
The mode of the preset duration that ripple is intercepted, last the up SC-FDMA in the UpPTS regions
The end position of symbol aligns with the sub-frame boundary of the special subframe；Or it is last in UpPTS regions
13rd end position pair of symbol of one end position of up SC-FDMA symbols and special subframe
Together；Or the end position of last the up SC-FDMA character position in UpPTS regions is pre-
If end position or be allocated to UE's by base station.
3. the sending method of SRS as claimed in claim 1, it is characterised in that using described in special son
Remain for UE in advance between every two neighboring up SC-FDMA symbols in the UpPTS regions of frame to be carried
In the mode of the preset duration that ripple is intercepted, in UpPTS regions before first up SC-FDMA symbol
The UE for being configured to be sent in described first up SC-FDMA symbol SRS is reserved with GP
Carry out the preset duration of carrier sense.
4. the sending method of SRS as claimed in claim 1, it is characterised in that described each UE is based on institute
State configuration information its configured for send SRS up SC-FDMA symbols before it is all
The SRS for preempting channel is sent in row SC-FDMA symbols, until its configured it is up
SRS is sent in SC-FDMA symbols to be included：
All UE of SRS are sent in first up SC-FDMA symbol for configuring, then according to institute
State configuration information and send SRS in described first up SC-FDMA symbol；
Each UE of SRS is sent in n-th up SC-FDMA symbol for configuring, then first
The SRS for preempting channel is all sent in individual to (n-1)th up SC-FDMA symbol, and described in it
N-th up SC-FDMA symbol in send SRS；Wherein, 2<=n<=UpPTS is used in region
Send the total number of the SC-FDMA symbols of SRS.
5. the sending method of SRS as claimed in claim 4, it is characterised in that described at first to
All sent in n-1 up SC-FDMA symbol includes for preempting the SRS of channel：At first to
The SRS resource chosen in n-1 up SC-FDMA symbol in up SC-FDMA symbols sends
SRS for preempting channel.
6. the sending method of SRS as claimed in claim 5, it is characterised in that the SRS resource includes：
One in SRS Comb and a cyclic shift.
7. the sending method of SRS as claimed in claim 5, it is characterised in that the SRS resource is matched somebody with somebody
Confidence breath is configured to UE by predetermined manner or network side by high-level signaling.
8. the sending method of SRS as claimed in claim 5, it is characterised in that the SRS resource not by
For based on configuration information SRS need to be sent in described first to (n-1)th up SC-FDMA symbol
UE send SRS when use.
9. the sending method of SRS as claimed in claim 1, it is characterised in that the reception network side sends
SRS configuration informations include：The SRS that network side is issued is received by RRC signaling or physical layer signaling
Configuration information.
10. the sending method of SRS as claimed in claim 1, it is characterised in that the preset duration is 25
Microsecond or a length for up SC-FDMA symbols.
A kind of 11. dispensing devices of SRS, it is characterised in that including：
Receiving unit, the configuration information of the SRS for receiving network side transmission；
First processing units or second processing unit；Wherein,
The first processing units are used in the UpPTS regions of special subframe per two neighboring up
Remaining for UE carries out the preset duration of carrier sense in advance between SC-FDMA symbols, so that each UE exists
SRS is sent in corresponding up SC-FDMA symbols based on the configuration information after carrier sense success；
The second processing unit is used for all UE using first in the UpPTS regions of special subframe
The preset duration reserved in GP before row SC-FDMA symbols carries out carrier sense, and carrier sense into
After work(, each UE be based on the configuration information its configured for sending the up of SRS
The SRS for preempting channel is sent in all up SC-FDMA symbols before SC-FDMA symbols,
Until sending SRS in the up SC-FDMA symbols that it is configured.
The dispensing device of 12. SRS as claimed in claim 11, it is characterised in that single in the described first treatment
In unit, the end position of last the up SC-FDMA symbol in the UpPTS regions with it is described
The sub-frame boundary alignment of special subframe：Or last the up SC-FDMA symbol in UpPTS regions
Number end position alignd with the end position of the 13rd symbol of special subframe；Or UpPTS regions
In last up SC-FDMA character position end position for default end position or
It is allocated to UE's by base station.
The dispensing device of 13. SRS as claimed in claim 11, it is characterised in that in the second processing list
In unit, it is reserved with for configuring in the GP in UpPTS regions before first up SC-FDMA symbol
It is that the UE that SRS is sent in described first up SC-FDMA symbol carries out the default of carrier sense
Duration.
The dispensing device of 14. SRS as claimed in claim 11, it is characterised in that the second processing unit
Including：
First treatment subelement, for sending SRS in first up SC-FDMA symbol for configuring
All UE, then sent in described first up SC-FDMA symbol according to the configuration information
SRS；
Second processing subelement, for sending SRS in n-th up SC-FDMA symbol for configuring
Each UE, then all sent in first to (n-1)th up SC-FDMA symbol for preempt believe
SRS is sent in the SRS in road, and n-th up SC-FDMA symbol described in it；Wherein,
2<=n<In=UpPTS regions be used for send SRS SC-FDMA symbols total number.
The dispensing device of 15. SRS as claimed in claim 14, it is characterised in that second processing is single
During unit in first to (n-1)th up SC-FDMA symbol for choosing up SC-FDMA symbols
A SRS resource send SRS for preempting channel.
The dispensing device of 16. SRS as claimed in claim 15, it is characterised in that the SRS resource includes：
One in SRS Comb and a cyclic shift.
The dispensing device of 17. SRS as claimed in claim 15, it is characterised in that the SRS resource is matched somebody with somebody
Confidence breath is configured to UE by predetermined manner or network side by high-level signaling.
The dispensing device of 18. SRS as claimed in claim 15, it is characterised in that the SRS resource not by
For based on configuration information SRS need to be sent in described first to (n-1)th up SC-FDMA symbol
UE send SRS when use.
The dispensing device of 19. SRS as claimed in claim 11, it is characterised in that the preset duration is 25
Microsecond or a length for up SC-FDMA symbols.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324906A (en) * | 2018-03-29 | 2019-10-11 | 维沃移动通信有限公司 | A kind of method for transmitting signals, device and terminal |
| CN110505026A (en) * | 2018-05-18 | 2019-11-26 | 华为技术有限公司 | Method, relevant device and the system that signal is listened to |
| WO2020220273A1 (en) * | 2019-04-30 | 2020-11-05 | 华为技术有限公司 | Method for sending sounding reference signal, and related apparatus |
| CN112398618A (en) * | 2019-08-16 | 2021-02-23 | 中国移动通信有限公司研究院 | Sending method, receiving method, terminal and network equipment of sounding reference signal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505485A (en) * | 2008-02-05 | 2009-08-12 | 三星电子株式会社 | Method and apparatus for sending SRS in LTE TDD system |
| CN102404074A (en) * | 2010-09-17 | 2012-04-04 | 电信科学技术研究院 | Transmission method and equipment of non-periodic SRS (Stimulated Raman scattering) in TDD (Time Division Duplexing) system |
| CN103095442A (en) * | 2011-10-31 | 2013-05-08 | 中兴通讯股份有限公司 | Sounding reference signal configuration method and device |
| CN104717686A (en) * | 2015-03-31 | 2015-06-17 | 深圳酷派技术有限公司 | Channel detection method of unauthorized frequency band and network cell equipment |
-
2016
- 2016-05-13 CN CN201610320087.XA patent/CN106788927B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505485A (en) * | 2008-02-05 | 2009-08-12 | 三星电子株式会社 | Method and apparatus for sending SRS in LTE TDD system |
| CN102404074A (en) * | 2010-09-17 | 2012-04-04 | 电信科学技术研究院 | Transmission method and equipment of non-periodic SRS (Stimulated Raman scattering) in TDD (Time Division Duplexing) system |
| CN103095442A (en) * | 2011-10-31 | 2013-05-08 | 中兴通讯股份有限公司 | Sounding reference signal configuration method and device |
| CN104717686A (en) * | 2015-03-31 | 2015-06-17 | 深圳酷派技术有限公司 | Channel detection method of unauthorized frequency band and network cell equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324906A (en) * | 2018-03-29 | 2019-10-11 | 维沃移动通信有限公司 | A kind of method for transmitting signals, device and terminal |
| CN110324906B (en) * | 2018-03-29 | 2023-02-21 | 维沃移动通信有限公司 | Signal transmission method, device and terminal |
| CN110505026A (en) * | 2018-05-18 | 2019-11-26 | 华为技术有限公司 | Method, relevant device and the system that signal is listened to |
| CN110505026B (en) * | 2018-05-18 | 2022-03-29 | 华为技术有限公司 | Signal interception method, related equipment and system |
| WO2020220273A1 (en) * | 2019-04-30 | 2020-11-05 | 华为技术有限公司 | Method for sending sounding reference signal, and related apparatus |
| CN112398618A (en) * | 2019-08-16 | 2021-02-23 | 中国移动通信有限公司研究院 | Sending method, receiving method, terminal and network equipment of sounding reference signal |
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| CN106788927B (en) | 2019-09-17 |
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