CN106455094A - Sounding reference signal transmission method, network side equipment and user equipment - Google Patents
Sounding reference signal transmission method, network side equipment and user equipment Download PDFInfo
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- CN106455094A CN106455094A CN201510497858.8A CN201510497858A CN106455094A CN 106455094 A CN106455094 A CN 106455094A CN 201510497858 A CN201510497858 A CN 201510497858A CN 106455094 A CN106455094 A CN 106455094A
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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
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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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
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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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
Abstract
The invention provides a sounding reference signal transmission method, network side equipment and user equipment, and belongs to the field of communication. The sounding reference signal transmission method used for the network side equipment comprises the steps that parameter configuration information of the user equipment UE used for transmitting SRS is determined; and the determined parameter configuration information is indicated to the UE so that the UE is enabled to use the unused DMRS resources to transmit the SRS according to the parameter configuration information. According to the technical scheme, the influence on the DMRS can be reduced as much as possible when the unused DMRS are reused for SRS transmission so that the multiplexing capacity can be enhanced and the great orthogonal performance can be maintained.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of transmission method of detection reference signal and network side sets
Standby, user equipment.
Background technology
In order to keep 3G (G mobile communication) competitiveness, (third generation affiliate counts 3GPP
Draw) it was organized in for the end of the year 2004 and passed through 3G Long Term Evolution plan (Long Term Evolution, abbreviation LTE).
LTE is intended to improve message transmission rate, reduces Time Delay of Systems, increases power system capacity and coverage, simultaneously
Cut operating costs, improve service quality.
LTE single-carrier frequency division multiple access accesses (SC-FDMA) up-link and supports two types reference signal：Solution
Adjust reference signal (De Modulation RS, DMRS) and detection reference signal (Sounding RS, SRS).
SRS is mainly used in channel quality estimation, carries out frequency selective scheduling in order to base station, on the other hand can also
Strengthen or support the various initialization of the current also unscheduled user equipment (UE) arriving for Power Control
Function, such as initialization modulation and encoding scheme select, initialization power control, timing advance and frequency
Semi-selective scheduling etc..Therefore, it need not transmit together with any physical channel, if with physical channel one
Play transmission, such as PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel), SRS
Different, often bigger bandwidth may be taken.
In LTE, define the SRS transmission of two classes：
One class is periodicity SRS (periodic SRS, corresponding trigger type 0)：Introduce in Rel-8, eNB
(base station) is entered by RRC (Radio Resource Control, wireless heterogeneous networks) signal deployment UE
The SRS transmission of row single or periodically transmission SRS stop to send request until receiving.SRS sends
Cycle can be 2,5,10,20,40,80,160 or 320ms.
Another kind of is aperiodicity SRS (aperiodic SRS, corresponding trigger type 1)：Draw in Rel-10
Enter, that is, introduce a kind of mode of Dynamic trigger SRS.For FDD (Frequency Division Dual,
FDD), eNodeB can pass through DCI (Downlink Control Information, descending control
Information) format 0/4/1A triggering UE transmission aperiodicity SRS.For TDD (Time Division
Duplexing, time division duplex), eNodeB can be triggered by DCI format 0/4/1A/2B/2C/2D
UE sends aperiodicity SRS.The mode of triggering is using the SRS request field in DCI.
No matter for periodicity or aperiodicity SRS, the configuration information of its SRS, such as bandwidth, week
Phase and subframe offset (deviant, for determining the subframe that SRS sends), (instruction is to send to Duration
Single or cycle send), bandwidth, frequency domain position, whether frequency hopping, Transmission Comp (instruction
The value of the KTC using), Cyclic Shift (instruction cyclic shift), port number etc. be all to be believed by RRC
Order is configured.
With the introducing of 3D-MIMO (Multiinputoutput), antenna number becomes many, can utilize simultaneously hang down
The directivity of straight and horizontal dimensions is so that more user's multiplexing, and the space of bigger layer (layer) is answered
With being possibly realized；In order to support the spatial reuse of the more layer of more users, obtain for subscriber channel information
The SRS obtaining is also required to be strengthened, and the enhanced scheme of the SRS discussing in existing standardization includes：
1st, it is being not used by PUSCH DMRS transmitted over resources SRS；
2nd, in PUSCH transmitted over resources SRS；
3rd, increase the number of SRS comb to be multiplexed more users；
4th, 4Tx antenna switching transmission SRS；
5th, precoding SRS；
6th, increase the SC-FDMA (Single-carrier for SRS transmission in UpPTs
Frequency-Division Multiple Access, single-carrier frequency division multiple access) number.
For the first enhanced scheme, it is multiplexed with the DMRS of Traffic Channel PUSCH, simultaneous transmission is used
Make the DMRS of sounding (detection) function, same asset is used as the DMRS of sounding function
Different user or same user may be belonging to the DMRS as PUSCH, in order to
Do not affect the normal business data transmission of user, need to ensure the DMRS as sounding function and use
Make the orthogonality of the DMRS of data demodulation.As shown in figure 1, wherein 1 is the sounding part of UE1,
2 be UE2 PUSCH parts, 3 be UE3 PUSCH parts, 4 be UE1 sounding and
The DMRS multiplexing of UE2,5 is the DMRS multiplexing of sounding and UE3 of UE1.UE1 due to
Different from the bandwidth of the PUSCH of multiplexing, therefore, it can to reach by using OCC (orthogonal mask)
Orthogonal.When the bandwidth of sounding is identical with the bandwidth of the PUSCH of multiplexing, can be followed by no
Ring shifts orthogonal as the sounding and DMRS being used as demodulation to reach.
In LTE R10 version, in order to support the up SU-MIMO of maximum 4 layer, need to prop up
Hold the multiplexing of the DMRS upstream data to demodulate each layer.On the one hand, DMRS base can be passed through
The DMRS to be multiplexed different layer for the different cyclic shifts of sequence, such as, for SU-MIMO transmission,
When layer is 4, layer0 can be applied to by using the cyclic shift 0,6,3,9 of basic sequence, 1,
2,3.On the other hand, can be by introducing orthogonal OCC between the DMRS of two slot (time slot)
Further discriminate between the DMRS of each layer.OCC value is [1 1] and [1-1], when two layer use
Cyclic shift close when, can be superimposed using OCC ensure layer between orthogonality.
Equally, in up MU-MIMO transmission, can be the different OCC code of different UE distribution,
When carrying out the bandwidth of two users of MU-MIMO transmission and differing, also can reach by using OCC
Orthogonality between demodulated reference signal.In existing agreement, the OCC code of each layer is to pass through
3 bits Cyclic Shift Field (cyclic shift domain) in the uplink scheduling authorization of PDCCH obtain,
Cyclic Shift Field is initially used to indicate the cyclic shift that DMRS adopts, when introducing Uplink MIMO
Afterwards, the cyclic shift of the DMRS of each layer can be indicated simultaneously, be multiplexed it and indicate OCC, can drop
Low control signaling expense.
In existing agreement, the cyclic shift of the sequence of DMRS is made up of three parts：
WhereinIndicate, its corresponding relation is in 3GPP TS 36.211 by high-level signaling " cyclicShift "
Table 5.5.2.1.1-2 defined in, andI.e. by uplink scheduling authorization DCI (Downlink Control Information)
In Cyclic Shift Field determine cyclic shift, in the Table 5.5.2.1.1-1 of 3GPP TS 36.211
There is corresponding relation, can be obtained by Cyclic Shift Field by inquiring about this table simultaneouslyAnd w(λ)(m),
Wherein [w(λ)(0) w(λ)(1)] constitute OCC, each layer. such as table 1 institute of the corresponding MIMO of λ ∈ { 0,1 ..., υ -1 }
Show, table 1 is that in the related DCI format of uplink scheduling, CSF arrives[w(λ)(0) w(λ)(1) mapping].
Table 1
Sounding function is done by the DMRS being not used by, that is, means to select with PUSCH's
The DMRS as sounding function for the orthogonal layer transmission of DMRS.
In prior art, it is used as the DMRS of sounding function using the DMRS resource transmission being not used by
The most direct mode is the parameter being multiplexed DMRS completely, but when DMRS is used as sounding function,
There is no the concept of the layer of MIMO, when contrary meeting is related to multiple antennas transmission sounding, antenna end
The concept of mouth.On the other hand, according to being now discussed with, sounding RS is transmitted using the DMRS being not used by
Scheme, as the SRS that 2 users are occurred on same resource, be multiplexed with the demodulation DMRS of PUSCH,
When the bandwidth of three kinds of RS all differs simultaneously, orthogonal performance can not ensure well.Furthermore, according to existing
Some agreements regulation, after the value of Cyclic Shift Field determines, the cyclic shift of DMRS and OCC
According to the number v of layer, take the front v row of above-mentioned table 1, but when SRS and DMRS is multiplexed, this
Kind corresponding relation is not necessarily optimal.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of transmission method of detection reference signal and network side
Equipment, user equipment, when the DMRS being not used by multiplexing carries out SRS transmission, drop as far as possible
The low impact to DMRS, lifts multiplexing capacity, the orthogonal performance having kept.
For solving above-mentioned technical problem, embodiments of the invention provide technical scheme as follows：
On the one hand, a kind of transmission method of detection reference signal SRS is provided, for network equipment, wraps
Include：
Determine the parameter configuration for sending SRS of user equipment (UE)；
The parameter configuration of determination is indicated to described UE, so that described UE is according to described parameter configuration
Information is using DMRS resource transmission SRS being not used by.
Further, also include：
Each with the DMRS demodulating for Physical Uplink Shared Channel PUSCH according to cyclic shift domain CSF
Mapping relations between the cyclic shift of layer layer and orthogonal mask, set up CSF and for transmitting SRS
The cyclic shift of each antenna port of DMRS and orthogonal mask between mapping relations.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
Further, described the parameter configuration of determination is indicated to described UE includes：
The parameter configuration of determination is indicated to by described UE by RRC signaling；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
The embodiment of the present invention additionally provides a kind of transmission method of detection reference signal SRS, sets for user
Standby UE, including：
Receive the parameter configuration of network equipment instruction；
According to described parameter configuration using DMRS resource transmission SRS being not used by.
Further, also include：
Each with the DMRS demodulating for Physical Uplink Shared Channel PUSCH according to cyclic shift domain CSF
Mapping relations between the cyclic shift of layer layer and orthogonal mask, set up CSF and for transmitting SRS
The cyclic shift of each antenna port of DMRS and orthogonal mask between mapping relations.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
The embodiment of the present invention additionally provides a kind of network equipment, including：
Processing module, for determining the parameter configuration for sending SRS of user equipment (UE)；
Indicating module, for the parameter configuration of determination is indicated to described UE, so that described UE root
According to described parameter configuration using DMRS resource transmission SRS being not used by.
Further, also include：
First configuration module, for according to cyclic shift domain CSF and for Physical Uplink Shared Channel
Mapping relations between the cyclic shift of DMRS each layer layer of PUSCH demodulation and orthogonal mask, build
Vertical CSF and for transmitting reflecting between the cyclic shift of each antenna port of DMRS of SRS and orthogonal mask
Penetrate relation.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
Further, described indicating module is specifically for the parameter configuration that will be determined by RRC signaling
It is indicated to described UE；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
The embodiment of the present invention additionally provides a kind of user equipment (UE), including：
Receiver module, for receiving the parameter configuration of network equipment instruction；
Multiplexing module, for using, according to described parameter configuration, the DMRS resource transmission being not used by
SRS.
Further, also include：
Second configuration module, for according to cyclic shift domain CSF and for Physical Uplink Shared Channel
Mapping relations between the cyclic shift of DMRS each layer layer of PUSCH demodulation and orthogonal mask, build
Vertical CSF and for transmitting reflecting between the cyclic shift of each antenna port of DMRS of SRS and orthogonal mask
Penetrate relation.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE following according to each antenna port of described CSF and DMRS
The circulation that mapping relations between ring displacement and orthogonal mask obtain the SRS of any antenna port or layer moves
Position and OCC value are for SRS transmission.
Embodiments of the invention have the advantages that：
In such scheme, when being multiplexed the transmission that DMRS carries out SRS, SRS relevant parameter is joined
Put so that when the DMRS that is not used by of multiplexing carries out SRS transmission, on the one hand can be as far as possible using existing
There is configuration, on the other hand reduce the impact to DMRS as far as possible, lift multiplexing capacity, just kept
Hand over performance.
Brief description
Fig. 1 is the schematic diagram of the DMRS multiplexing of SRS and UE3 of UE1, UE2 in prior art；
Fig. 2 is the schematic flow sheet of the transmission method of the embodiment of the present invention one SRS；
Fig. 3 is the schematic flow sheet of the transmission method of the embodiment of the present invention two SRS；
Fig. 4 is the structural representation of the embodiment of the present invention three network equipment；
Fig. 5 is the structural representation of the embodiment of the present invention four user equipment；
The DMRS being not used by that Fig. 6 is multiplexed UE1 for the embodiment of the present invention five UE2 and UE3 to pass
The schematic diagram of defeated SRS.
Specific embodiment
For making embodiments of the invention technical problem to be solved, technical scheme and advantage clearer, below
To be described in detail in conjunction with the drawings and the specific embodiments.
Embodiments of the invention provide a kind of transmission method of detection reference signal and network equipment, Yong Hushe
Standby, can reduce as far as possible to DMRS's when the DMRS that be not used by of multiplexing carries out SRS transmission
Impact, lifts multiplexing capacity, the orthogonal performance having kept.
Embodiment one
Present embodiments provide a kind of transmission method of detection reference signal SRS, for network equipment,
As shown in Fig. 2 the present embodiment includes：
Step 101：Determine the parameter configuration for sending SRS of UE；
Step 102：The parameter configuration of determination is indicated to described UE, so that described UE is according to institute
State parameter configuration using DMRS resource transmission SRS being not used by.
In the present embodiment, network equipment is when being multiplexed the transmission that DMRS carries out SRS, related to SRS
Parameter is configured so that when the user equipment DMRS that is not used by of multiplexing carries out SRS transmission, and one
On the other hand aspect can reduce the impact to DMRS, lifting is multiple as far as possible as far as possible using existing configuration
With capacity, the orthogonal performance having kept.
Further, methods described also includes：
According to CSF and the cyclic shift of each layer of DMRS for PUSCH demodulation and orthogonal mask it
Between mapping relations, set up CSF with for transmit each antenna port of the DMRS of SRS cyclic shift and
Mapping relations between orthogonal mask.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
RPF (repetition factor), Transmission Comb (comb), OCC and instruction SRS transmission position
The transfer resource position instruction put, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
Further, described the parameter configuration of determination is indicated to described UE includes：
The parameter configuration of determination is indicated to by described UE by RRC signaling；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
Embodiment two
The present embodiment additionally provides a kind of transmission method of detection reference signal SRS, for UE, such as Fig. 3
Shown, the present embodiment includes：
Step 201：Receive the parameter configuration of network equipment instruction；
Step 202：According to described parameter configuration using DMRS resource transmission SRS being not used by.
The present embodiment is multiplexed DMRS according to the multiplexing configuration parameter that network equipment indicates and carries out SRS's
On the other hand transmission, on the one hand can reduce the impact to DMRS as far as possible using existing configuration as far as possible,
Lifting multiplexing capacity, the orthogonal performance having kept.
Further, methods described also includes：
According to CSF and the cyclic shift of each layer of DMRS for PUSCH demodulation and orthogonal mask it
Between mapping relations, set up CSF with for transmit each antenna port of the DMRS of SRS cyclic shift and
Mapping relations between orthogonal mask.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
The transfer resource position of RPF, Transmission Comb, OCC and instruction SRS transmission position refers to
Show, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
Embodiment three
The present embodiment additionally provides a kind of network equipment, as shown in figure 4, the present embodiment includes：
Processing module 30, for determining the parameter configuration for sending SRS of UE；
Indicating module 31, for the parameter configuration of determination is indicated to described UE, so that described UE
According to described parameter configuration using DMRS resource transmission SRS being not used by.
Further, described network equipment also includes：
First configuration module, for following according to the CSF and each layer of DMRS demodulating for PUSCH
Mapping relations between ring displacement and orthogonal mask, set up CSF and for transmitting each sky of the DMRS of SRS
Mapping relations between the cyclic shift of line end mouth and orthogonal mask.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
The transfer resource position of RPF, Transmission Comb, OCC and instruction SRS transmission position refers to
Show, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
Further, described indicating module 31 is specifically for being believed the parameter configuration determining by RRC signaling
Breath is indicated to described UE；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
The network equipment of the present embodiment, when being multiplexed the transmission that DMRS carries out SRS, is joined to SRS correlation
Number is configured so that when the user equipment DMRS that is not used by of multiplexing carries out SRS transmission, a side
On the other hand face can reduce the impact to DMRS, lifting multiplexing as far as possible as far as possible using existing configuration
Capacity, the orthogonal performance having kept.
Example IV
The present embodiment additionally provides a kind of UE, as shown in figure 5, the present embodiment includes：
Receiver module 40, for receiving the parameter configuration of network equipment instruction；
Multiplexing module 41, for being passed using the DMRS resource being not used by according to described parameter configuration
Defeated SRS.
Further, UE also includes：
Second configuration module, for following according to the CSF and each layer of DMRS demodulating for PUSCH
Mapping relations between ring displacement and orthogonal mask, set up CSF and for transmitting each sky of the DMRS of SRS
Mapping relations between the cyclic shift of line end mouth and orthogonal mask.
Further, described parameter configuration includes arbitrary as follows or any number of information combination：
The transfer resource position of RPF, Transmission Comb, OCC and instruction SRS transmission position refers to
Show, wherein, RPF is more than 1.
Further, described parameter configuration also includes：
Antenna port selects instruction i, for described UE following according to each antenna port of described CSF and DMRS
The circulation that mapping relations between ring displacement and orthogonal mask obtain the SRS of any antenna port or layer moves
Position and OCC value are for SRS transmission.
The user equipment of the present embodiment is multiplexed DMRS according to the multiplexing configuration parameter that network equipment indicates
Carry out the transmission of SRS, on the one hand can be as far as possible using existing configuration, it is right on the other hand to reduce as far as possible
The impact of DMRS, lifts multiplexing capacity, the orthogonal performance having kept.
Embodiment five
Below the transmission method of the detection reference signal of the present embodiment is described in detail, in multiplexing DMRS
Carry out SRS transmission when, need the relevant parameter to DMRS and the associated description of agreement to modify：
(1) when using the DMRS being not used by transmit SRS, there are not many layer simultaneously in SRS
The problem of transmission, but may have the problem of multi-antenna port simultaneous transmission, accordingly, it would be desirable to the phase to agreement
Close description to modify, that is, when DMRS is used as transmission SRS, corresponding TS 36.211 5.5.2.1.1
The description of section is with regard to, in sequence to the definition of each layer and description, λ ∈ { 0,1 ..., υ -1 } needs to be changed toWherein, v is the layer number of DMRS, NapIt is the antenna port of transmission SRS
Number.
For example, existing table 1 can correspond to the table 2 shown in being varied to, and table 2 is uplink scheduling
In related DCI format, CSF arrivesWithMapping.
Table 2
It is of course also possible to only in the text, realize above-mentioned DMRS layer to SRS antenna end
The correspondence of mouth, is not limited to specific description form.
(2) because DMRS be Continuous Mappings on carrier wave, and SRS be interval be mapped on carrier wave,
Therefore compared with DMRS, SRS further relate to parameter RPF (repetition factor, repetition factor) and
TransmissionComb (comb).According to the value of RPF, can determine TransmissionComb's
Value, such as RPF take 4, then the value of TransmissionComb can be 0,1,2,3；RPF
Take 3, then the value of TransmissionComb can be 0,1,2；RPF takes 2, then TransmissionComb
Value can be 0,1；It is 1 for RPF, then TransmissionComb is then thought in user and base station
Value meaningless；
With DMRS multiplexing SRS can select using RPF be more than 1, now, in order to keep SRS with
DMRS's is orthogonal, needs for the orthogonal OCC of SRS and DMRS configuration.Citing, as shown in fig. 6,
UE2 and UE3 is multiplexed the DMRS being not used by of UE1 transmitting SRS, and wherein, a1～a12 is UE1
DMRS sequence, b1～b6 be UE2 SRS sequence, c1～c6 be UE3 SRS sequence, DMRS
Using OCC [1 1], and SRS adopts RPF=2 to transmit, and the SRS of concurrent multiplexing needs to adopt identical
OCC [1-1] is orthogonal with DMRS with holding, by using difference between the SRS of the UE of different bandwidth
Transmission Comb completely orthogonal, multiplexing in identical Transmission Comb with existing
The multiplexing of SRS is identical.
In order to realize be multiplexed, in the configuration parameter of SRS, need to increase some parameters, can include as
Under the combination of one or more：
RPF:The 2 of 1,2,4 or bigger multiple can be taken.
Transmission Comb：According to the value of RPF, can determine taking of TransmissionComb
Value, such as RPF takes 4, then the value of TransmissionComb can be 0,1,2,3；RPF takes
3, then the value of TransmissionComb can be 0,1,2；RPF takes 2, then TransmissionComb
Value can be 0,1；It is 1 for RPF, then TransmissionComb is then thought in user and base station
Value meaningless.
OCC:Value 0 or 1, corresponding to OCC sequence respectively is [1 1] or [1-1].
Transfer resource position instruction：Value is { 0,1 }, and the position of instruction SRS transmission is of the prior art
SRS position is still multiplexed the position in DMRS, specifically, can represent that transmission SRS is multiplexing with 1
Position in DMRS.If SRS can also be multiplexed PUSCH resource transmission, the value of this parameter is also
Can increase.
Above-mentioned parameter can be in existing SoundingRS-UL-ConfigDedicated or
Increase in SoundingRS-UL-ConfigDedicatedAperiodic-r10 parameter or new definition
SoundingRS-UL-ConfigDedicated_r13 or
Configure in SoundingRS-UL-ConfigDedicatedAperiodic-r10_r13, the information of configuration
The title of element (IE) and parameter can be different, but implication is identical.
The present embodiment passes through to arrange above-mentioned parameter so that the DMRS and RPF SRS more than 1 can be orthogonal
Multiplexing, using the teaching of the invention it is possible to provide the capacity of the SRS of the orthogonal multiplex of more different bandwidths.
(3) specify according to existing agreement, after the value of Cyclic Shift Field determines, DMRS
Cyclic shift and OCC according to the number v of layer, take the front v row of above-mentioned table 1.But, in multiplexing
When DMRS carries out the transmission of SRS, this corresponding relation is not necessarily optimal.
In order to reduce the impact to DMRS transmission as far as possible, the present embodiment increases in the configuration parameter of SRS
Plus the instruction i of the antenna port of 2 bits, read above-mentioned table for the cyclic shift value according to SRS
1 or layer is replaced by the corresponding form after antenna port, obtain the cyclic shift of SRS sequence simultaneously
With OCC value, because in existing protocol, when DMRS layer is 1, cyclic shift and OCC value
Only take corresponding first row, when DMRS layer is 2, cyclic shift and OCC value take corresponding front 2
Row.By the instruction i of 2 bits, can indicate that the cyclic shift of SRS and OCC value take in form and correspond to
I+1 row, the value of i is unrelated with the number v of layer.Base station configure SRS this parameter when,
According to the ratio layer number of more typical Single User MIMO and the number of users of multiplexing in current system, if
Put the cyclic shift of SRS and OCC value takes the corresponding value of row outside the layer number of DMRS multiplexing, to the greatest extent may be used
The impact to DMRS configuration can be reduced.For example current SU-MIMO number more classical for 2 layer,
The instruction i that SRS then can be configured takes 2 or 3, and the cyclic shift of such SRS and OCC value just can take table
Corresponding 3rd, 4 row of lattice, thus in the DMRS as sounding with as demodulation PUSCH's
When DMRS same band and overlap, can be good at keeping orthogonality with demodulation DMRS, it is right to reduce
The impact of DMRS.
In one specific example, in certain subframe, UE1 and UE2 is required to be multiplexed DMRS transmission SRS,
And all only employ an antenna port transmission SRS, the transfer resource of UE1 is RB (Resource Block) 3～18,
The transfer resource of UE2 is RB3～6；UE3 scheduled PUSCH transmission on RB3～6, that is, UE2 with
The transfer resource of UE3 is completely overlapped；
The layer number that UE3 transmits PUSCH is 1 it is considered to UE1 is different from the bandwidth of UE2/UE3, needs
To transmit DMRS using orthogonal OCC, therefore UE3 selects
Mean that the CSF value in the corresponding DCI of DMRS can only select in 010,101,110 from 001,
Assume that it have selected 010, correspond to
In order to keep orthogonal, UE2 is also required to selectAccording to existing
The parameter rule of correspondence of DMRS, during only one of which antenna port, he can only select 001,101,110
Correspond to respectivelyFor 6,8,10, but it selects 000 in fact,I.e.Performance meeting for 9
Relatively good, maximum with 3 cyclic shift interval.Now can be by arranging the antenna end of the 2bit of SRS
Mouth selects instruction i=3, and the cyclic shift of instruction SRS and OCC take the 4th of form to arrange.
The present embodiment increases the SRS configuration parameter i of 2 bits, can indicate that SRS selects from table 2
UseWithMore freely configure the cyclic shift of SRS, improve DMRS
Orthogonal performance when being multiplexed with SRS.
Above-mentioned parameter RPF, Transmission Comb, OCC, transfer resource position instruction and 2 bits
Antenna port instruction i, the RRC signaling that can be issued by base station is being indicated to UE, or passes through
Base station is triggering the DCI format issuing during SRS to be indicated to UE, wherein, by triggering SRS
When the DCI format that sends carrying out dynamic instruction, effect can be more preferably.
For example, base station is configured with two UE and sends SRS in the position of DMRS, and according to its frequency
Domain original position and bandwidth (being configured by RRC) can interpolate that the SRS of this two UE in time-frequency
Overlap in resource, therefore take identical value for the OCC of two UE configurations, for example, take [1 1], RPF
It is each configured to 2, Transmission Comb to be respectively configured as 0,1 (these parameters can be by RRC
Configuration can also be DCI configuration).In the UE PUSCH of two SRS overlapping regions of base station scheduling,
Configure the CSF of its demodulation DMRS, so that the OCC of DMRS corresponds to [1-1]. (for a layer
DMRS, can be 001,010,101,110；For the DMRS of two layer, Ke Yishi
001,010,101,110；For four layer can only be 101 or 110).
The present embodiment by being configured the DMRS so that being not used by multiplexing to SRS relevant parameter
When carrying out SRS transmission, on the one hand can be as far as possible using existing configuration, it is right on the other hand to reduce as far as possible
The impact of DMRS, lifts multiplexing capacity, the orthogonal performance having kept.
This many functional part described in this description is all referred to as module, specifically to emphasize it
The independence of implementation.
In the embodiment of the present invention, module can be realized with software, so that by various types of computing devices.
For example, the executable code module of a mark can include one or more physics of computer instruction
Or logical block, for example, it can be built as object, process or function.Even so, being marked
The executable code knowing module need not be physically located together, but can include being stored in different physically
Different instructions, when being combined together in these command logics, it constitutes module and realizes this module
Regulation purpose.
In fact, executable code module can be individual instructions or many bar instructions, and even can
To be distributed on multiple different code segments, it is distributed in the middle of distinct program, and crosses over multiple memorizeies and set
Back-up cloth.Similarly, peration data can be identified in module, and can be according to any suitable shape
Formula is realized and is organized in the data structure of any appropriate type.Described peration data can be used as single
Data set is collected, or can be distributed in and (include in different storage device) on diverse location, and
Electronic signal can be only used as at least in part be present on system or network.
When module can be realized using software it is contemplated that the level of existing hardware technique is it is possible to soft
The module that part is realized, in the case of not considering cost, those skilled in the art can build corresponding hard
Realizing corresponding function, described hardware circuit includes ultra-large integrated (VLSI) of routine to part circuit
The existing quasiconductor of circuit or gate array and such as logic chip, transistor etc or other are discrete
Element.Module can also use programmable hardware device, such as field programmable gate array, programmable array
Logic, programmable logic device etc. are realized.
In each method embodiment of the present invention, the sequence number of described each step can not be used for limiting the elder generation of each step
Order afterwards, for those of ordinary skill in the art, on the premise of not paying creative work, to each
The priority of step changes also within protection scope of the present invention.
The above is the preferred embodiment of the present invention it is noted that common skill for the art
For art personnel, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (18)
1. a kind of transmission method of detection reference signal SRS, for network equipment it is characterised in that
Including：
Determine the parameter configuration for sending SRS of user equipment (UE)；
The parameter configuration of determination is indicated to described UE, so that described UE is according to described parameter configuration
Information is using DMRS resource transmission SRS being not used by.
2. method according to claim 1 is it is characterised in that also include：
Each with the DMRS demodulating for Physical Uplink Shared Channel PUSCH according to cyclic shift domain CSF
Mapping relations between the cyclic shift of layer layer and orthogonal mask, set up CSF and for transmitting SRS
The cyclic shift of each antenna port of DMRS and orthogonal mask between mapping relations.
3. method according to claim 2 it is characterised in that described parameter configuration include as
Under arbitrary or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
4. method according to claim 3 is it is characterised in that described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
5. method according to claim 1 is it is characterised in that described believe the parameter configuration determining
Breath is indicated to described UE and includes：
The parameter configuration of determination is indicated to by described UE by RRC signaling；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
6. a kind of transmission method of detection reference signal SRS, for user equipment (UE) it is characterised in that
Including：
Receive the parameter configuration of network equipment instruction；
According to described parameter configuration using DMRS resource transmission SRS being not used by.
7. method according to claim 6 is it is characterised in that also include：
Each with the DMRS demodulating for Physical Uplink Shared Channel PUSCH according to cyclic shift domain CSF
Mapping relations between the cyclic shift of layer layer and orthogonal mask, set up CSF and for transmitting SRS
The cyclic shift of each antenna port of DMRS and orthogonal mask between mapping relations.
8. method according to claim 7 it is characterised in that described parameter configuration include as
Under arbitrary or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
9. method according to claim 8 is it is characterised in that described parameter configuration also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
10. a kind of network equipment is it is characterised in that include：
Processing module, for determining the parameter configuration for sending SRS of user equipment (UE)；
Indicating module, for the parameter configuration of determination is indicated to described UE, so that described UE root
According to described parameter configuration using DMRS resource transmission SRS being not used by.
11. network equipments according to claim 10 are it is characterised in that also include：
First configuration module, for according to cyclic shift domain CSF and for Physical Uplink Shared Channel
Mapping relations between the cyclic shift of DMRS each layer layer of PUSCH demodulation and orthogonal mask, build
Vertical CSF and for transmitting reflecting between the cyclic shift of each antenna port of DMRS of SRS and orthogonal mask
Penetrate relation.
12. network equipments according to claim 11 are it is characterised in that described parameter configuration is believed
Breath includes arbitrary as follows or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
13. network equipments according to claim 12 are it is characterised in that described parameter configuration is believed
Breath also includes：
Antenna port selects instruction i, for described UE according to described CSF and each antenna port of DMRS
Mapping relations between cyclic shift and orthogonal mask obtain the circulation of the SRS of any antenna port or layer
Displacement and OCC value are for SRS transmission.
14. network equipments according to claim 10 it is characterised in that
Described indicating module is described specifically for being indicated to the parameter configuration of determination by RRC signaling
UE；Or
By the descending control information format issuing in triggering SRS, the parameter configuration determining is indicated
To described UE.
A kind of 15. user equipment (UE)s are it is characterised in that include：
Receiver module, for receiving the parameter configuration of network equipment instruction；
Multiplexing module, for using, according to described parameter configuration, the DMRS resource transmission being not used by
SRS.
16. UE according to claim 15 are it is characterised in that also include：
Second configuration module, for according to cyclic shift domain CSF and for Physical Uplink Shared Channel
Mapping relations between the cyclic shift of DMRS each layer layer of PUSCH demodulation and orthogonal mask, build
Vertical CSF and for transmitting reflecting between the cyclic shift of each antenna port of DMRS of SRS and orthogonal mask
Penetrate relation.
17. UE according to claim 16 it is characterised in that described parameter configuration include as
Under arbitrary or any number of information combination：
Repetition factor RPF, comb Transmission Comb, orthogonal mask OCC and instruction SRS pass
The transfer resource position instruction of defeated position, wherein, RPF is more than 1.
18. UE according to claim 17 are it is characterised in that described parameter configuration also includes：
Antenna port selects instruction i, for described UE following according to each antenna port of described CSF and DMRS
The circulation that mapping relations between ring displacement and orthogonal mask obtain the SRS of any antenna port or layer moves
Position and OCC value are for SRS transmission.
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