CN103036662B - The sequence jump method and device of uplink demodulation reference signal - Google Patents
The sequence jump method and device of uplink demodulation reference signal Download PDFInfo
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- CN103036662B CN103036662B CN201110301539.7A CN201110301539A CN103036662B CN 103036662 B CN103036662 B CN 103036662B CN 201110301539 A CN201110301539 A CN 201110301539A CN 103036662 B CN103036662 B CN 103036662B
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- H04J13/0074—Code shifting or hopping
Abstract
The invention discloses the sequence jump method and device of a kind of uplink demodulation reference signal (DMRS), the method is comprised the following steps：The information of Physical Uplink Shared Channel (PUSCH) the DMRS sequences from network side is received, wherein, the information of PUSCH DMRS sequences includes at least one of：Cyclic shift (CS) hopping pattern information, cell ID offset information, sequence index offset information；Information according to the PUSCHDMRS sequences for receiving determines the sequence jump pattern of PUSCHDMRS and/or sequence jump pattern, and the sequence jump pattern and/or sequence jump pattern according to the PUSCH DMRS for determining carries out sequence jump.The resource utilization that system is improve by the present invention.
Description
Technical field
The present invention relates to the communications field, especially a kind of uplink demodulation reference signal (Demodulation Reference
Signal, referred to as DMRS) sequence jump method and device.
Background technology
In senior long term evolution (Long Term Evolution Advanced, referred to as LTE-A) system, in order to improve
The transfer rate of cell edge, 3GPP release coordinated multipoint transmission (Coordinated Multi-Point Transmission
And Reception, referred to as CoMP) technology.Which mainly improves the data transfer of edge customer by the cooperation of minizone
Although speed, CoMP technology improve the handling capacity of edge customer but while also increase the complexity of network system.
Effectively can support in LTE R10 (version 10) Single User MIMO based on DMRS (Single User-MIMO,
Referred to as SU-MIMO) and single cell in multiuser MIMO (Multiple User-MIMO, referred to as MU-MIMO), but,
For minizone MU-MIMO need to be further enhanced.In lte-a system, especially in up CoMP system, multiple cells
Need to service to targeted customer (User Equipment, referred to as UE) simultaneously, if at this moment targeted customer is SU user, although
Targeted customer can obtain performance gain by CoMP, be likely to result in certain wasting of resources but then or system is flat
The decline of equal handling capacity, therefore, for more efficient utilization system resource, up CoMP system is to minizone MU (Multiple
User, multi-user or pairing user) put forward higher requirement, including can support more number of users and these are more simultaneously
Orthogonality between user etc..
For minizone MU, if different districts configure different up DMRS sequences groups, orthogonal mask can only be passed through
(Orthogonal Cover Code, referred to as OCC) is orthogonal, and at most can only 2 users of concurrent multiplexing；If different districts
The configuration up DMRS sequences group of identical, then can by using cyclic shift (Cyclic Shift, referred to as CS) and/or
OCC modes are multiplexed more users.But, physically row shared channel (Physical Uplink Shared at present
Channel, referred to as PUSCH) in the CS hop modes of DMRS sequences cannot ensure the CS saltus step moulds between the MU user of minizone
Formula is the same, causes there is CS collision problems between MU user or OCC cannot be correctly decoded, so as to affect minizone MU user
Performance.
At present, determine to each cell in R10 that the method for its sequence group for being used is as follows：
U=(fgh(ns)+fss) mod30,
Wherein, fgh(ns) represent sequence group hopping pattern (hopping pattern), fssRepresent sequence index information
(sequence index), defines 17 kinds of sequence group hopping pattern and 30 kinds of sequence index informations in LTE altogether.
Being turned on and off in R10 for sequence group hopping function is by the high-rise letter of cell specific (cell-specific)
Make Group-hopping-enabled to control.If network side does not send Group-hopping-enabled to cell
Signaling, then for all users in the cell：
fgh(ns)=0；
If the oriented cell of network side sends signaling, for all users in the cell：
Wherein, nsRepresent time slot index, c (8ns+ i) represent that pseudo-random sequence, its initialization value are：
Wherein,Represent cell ID.
User specific (ue-specific) high-level signaling Disable-sequence- is also defined in R10 simultaneously
Group-hopping is realizing having used those specific users of OCC technology to close its sequence group hopping for DMRS on PUSCH
Function.
For PUCCH：
For PUSCH,Δss∈ { 0,1 ..., 29 }.
Wherein, ΔssIt is the specific higher level parameters of cell.In the case where sequence group hopping function is closed, network side
Can realize that the PUSCH of different districts uses identical DMRS sequence group by the coordination configuration of the parameter.And jump in sequence group
Become in the case that function opens, the PUSCH of any two or multiple different districts in current standard, cannot be supported all using phase
Same DMRS sequence groups, at this moment just cannot realize the multiplexing of inter-cell user by CS.
At present, determine to each cell in R10 that the method for sequence in its group for being used is as follows：
Wherein, pseudo-random sequence c (ns) the hopping pattern of sequence are represented, its initial value meets：
In group, sequence jump function is turned on and off in R10 by the specific high-level signaling Sequence- of cell
Hopping-enabled controlling, while specific (ue-specific) high-level signaling of the above-mentioned user defined in R10
Disable-sequence-group-hopping can be used for closing specific user sequence jump function in its group.R10
In middle regulation group, sequence group hopping function and sequence jump function can not be used simultaneously.
In the case of sequence jump function unlatching in group, in current standard, cannot support that any two or multiple differences are little
The PUSCH in area using identical DMRS sequence, at this moment also cannot realize the multiplexing of inter-cell user by CS.
At present, the method for its CS is as follows to be determined to each user in R10：
Wherein,Configured by high-level signaling by network side,Configured by PDCCH by network side,WithThe CS saltus step initialization values of user are together decided on.
Represent that CS saltus step patterns, its pseudo-random sequence initial value are：
When there is minizone MU, network side can pass through higher level parametersCoordinate the initialization CS values of minizone, but
Cell ID due to different districtsAnd/or sequence index informationInconsistent, so, it is impossible to ensure that minizone MU is used
CS Hopping Patterns between family are identicals.
In up CoMP system, generally there are multiple edge UE, due to cooperation set defined in R11 in a cell
It is that user is specific, i.e. the cooperation cell set of each edge UE may be different, and network side is difficult by little in current R10
The specific higher level parameters Δ in areassTo ensure each cooperation cell of each edge UE respectively using identical sequence group.On the other hand,
If excessive cell is allowed using same sequence group, will also result in DMRS capacity problems and this multiple Intra-cell other UE
Interference problem.So, in up CoMP system, consider cooperation aggregating characteristic, capacity and interference problem, network side
Selectively different districts can be configured with identical sequence group or different sequence groups.Therefore relative to R10, DMRS sequence jump moulds
Formula inconsistence problems more can be projected in up CoMP system.
It can be seen that, in the related, this CS Hopping Patterns inconsistent, cause PUSCH DMRS not enable feelings in OCC
The CS collision problems being likely to occur under condition between the MU user of minizone, and in the case of OCC is enabled, then occur that OCC cannot be correct
The problem of decoding, so that have impact on the performance of minizone MU user.
Content of the invention
Present invention is primarily targeted at a kind of sequence jump method of DMRS is provided, at least to solve above-mentioned correlation technique
In due to the inconsistent of CS Hopping Patterns affect minizone MU user performance problem.
To achieve these goals, according to an aspect of the invention, there is provided a kind of sequence jump side of up DMRS
Method.
According to the sequence jump method of the up DMRS of the present invention, comprise the following steps：Receive from network side
The information of PUSCHDMRS sequences, wherein, the information of PUSCH DMRS sequences includes at least one of：CS hopping pattern informations,
Cell ID offset information, sequence index offset information；Determined according to the information of the PUSCH DMRS sequences for receiving
The sequence jump pattern of PUSCHDMRS and/or sequence jump pattern, and the sequence jump pattern according to the PUSCH DMRS for determining
And/or sequence jump pattern carries out sequence jump.
Preferably, reception includes from the information of the PUSCH DMRS sequences of network side：By high-level signaling receive from
The information of the PUSCHDMRS sequences that network side is notified, wherein, high-level signaling is that user is specific or cell is specific.
Preferably, the sequence jump pattern of PUSCH DMRS is determined according to the information of the PUSCH DMRS sequences for receiving,
And the sequence jump pattern according to the PUSCH DMRS for determining carries out sequence jump and includes：According to the CS Hopping Patterns letter for receiving
Breath determines that the sequence jump pattern of PUSCH DMRS is sub-frame level CS Hopping Pattern, and carries out CS according to sub-frame level CS Hopping Pattern
Saltus step；Wherein, using fixed CS values in each subframe, across the sub-frames using the CS values of saltus step.
Preferably, carrying out CS saltus steps according to sub-frame level CS Hopping Pattern includes：Sub-frame level CS Hopping Pattern is by following public affairs
One of formula draws：
Wherein, nsTime slot index is represented,Represent the SC-FDMA symbolic numbers included in each ascending time slot, c (ns) table
Show pseudo-random sequence.
Preferably, the sequence jump pattern bag of PUSCH DMRS is determined according to the information of the PUSCH DMRS sequences for receiving
Include：When cell ID offset information and/or sequence index offset information according to receiving obtains PUSCH DMRS sequence jumps
The pseudo-random sequence initial value for being adopted, and the sequence jump pattern of PUSCH DMRS is determined by the pseudo-random sequence initial value.
Preferably, PUSCH DMRS sequence jumps include at least one of：PUSCH DMRS sequence group hoppings,
Sequence jump, the CS saltus steps of PUSCH DMRS sequences in PUSCHDMRS groups.
Preferably, adopted when obtaining PUSCH DMRS sequence group hoppings according to the cell ID offset information for receiving
Pseudo-random sequence initial value includes：Pseudo-random sequence initial value c is drawn by one of below equationinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased.
Preferably, sequence or PUSCH DMRS in PUSCH DMRS groups is obtained according to the cell ID offset information for receiving
The pseudo-random sequence initial value adopted during the CS saltus steps of sequence includes：Show that pseudo-random sequence is initial by one of below equation
Value cinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Represent sequence index information.
Preferably, according to the sequence index offset information that receives obtain in PUSCH DMRS groups sequence jump or
The pseudo-random sequence initial value adopted during the CS saltus steps of PUSCHDMRS sequences includes：Pseudorandom sequence is drawn by below equation
Row initial value cinit：
Wherein,Represent cell ID,Represent sequence index information, Δ 'ssRepresent sequence index biasing.
Preferably, PUSCH DMRS groups are obtained according to the cell ID offset information and sequence index offset information for receiving
The pseudo-random sequence initial value adopted during the CS saltus steps of interior sequence jump or PUSCH DMRS sequences includes：By below equation
One of draw pseudo-random sequence initial value cinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Represent sequence index information, Δ 'ssTable
Show that sequence index is biased.
To achieve these goals, according to a further aspect in the invention, a kind of sequence jump of up DMRS is additionally provided
Device.
According to the present invention up DMRS sequence jump device, including：Receiver module, for receiving from network side
The information of PUSCH DMRS sequences, wherein, the information of PUSCH DMRS sequences includes at least one of：CS Hopping Patterns are believed
Breath, cell ID offset information, sequence index offset information；Determining module, for received according to receiver module
The information of PUSCHDMRS sequences determines the sequence jump pattern of PUSCH DMRS and/or sequence jump pattern；Sequence jump mould
Block, the sequence jump pattern of PUSCH DMRS and/or sequence jump pattern for determining according to determining module carry out sequence jump
Become.
Preferably, determining module includes：Hopping Pattern unit, true according to the CS hopping pattern informations that receiver module is received
The sequence jump pattern for determining PUSCH DMRS is sub-frame level CS Hopping Pattern, and wherein, sub-frame level CS Hopping Pattern is to carry out CS
Using fixed CS values in each subframe during saltus step, across the sub-frames using the CS values of saltus step.
Preferably, determining module also includes：Saltus step pattern unit, according to the cell ID biasing letter that receiver module is received
Breath and/or sequence index offset information are obtained and carry out the pseudorandom sequence adopted by least one PUSCH DMRS sequence jump
Row initial value：Sequence jump, the CS saltus steps of PUSCH DMRS sequences in PUSCH DMRS sequence group hoppings, PUSCH DMRS groups；
And the sequence jump pattern of PUSCH DMRS is determined according to the pseudo-random sequence initial value.
By the present invention, determined using the information according to the PUSCH DMRS sequences from network side for receiving
The sequence jump pattern of PUSCHDMRS and/or sequence jump pattern, then carry out the mode of sequence jump again, solve correlation
The problem of minizone MU user performances is affected in technology due to the inconsistent of CS Hopping Patterns, improves the utilization of resources of system
Rate.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the sequence jump method of uplink demodulation reference signal DMRS according to embodiments of the present invention；
Fig. 2 is the structured flowchart of the sequence jump device of uplink demodulation reference signal DMRS according to embodiments of the present invention；
Fig. 3 is the structural frames of the sequence jump device of uplink demodulation reference signal DMRS according to the preferred embodiment of the invention
Figure.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
According to embodiments of the present invention, there is provided a kind of sequence jump method of uplink demodulation reference signal DMRS.Fig. 1 is root
According to the flow chart of the sequence jump method of the uplink demodulation reference signal DMRS of the embodiment of the present invention, as shown in figure 1, the method bag
Include following steps：
Step S102, receives the information of the PUSCHDMRS sequences from network side, wherein, the information of PUSCHDMRS sequences
Including at least one of：CS hopping pattern informations, cell ID offset information, sequence index offset information；
Step S 104, the information according to the PUSCH DMRS sequences for receiving determine the sequence jump mould of PUSCH DMRS
Formula and/or sequence jump pattern, and according to determine PUSCH DMRS sequence jump pattern and/or sequence jump pattern carry out
Sequence jump.
By above-mentioned steps, determined using the information according to the PUSCH DMRS sequences from network side for receiving
The sequence jump pattern of PUSCHDMRS and/or sequence jump pattern, then carry out the mode of sequence jump again, solve correlation
The problem of minizone MU user performances is affected in technology due to the inconsistent of CS Hopping Patterns, improves the utilization of resources of system
Rate.
Preferably, in step s 102, the PUSCH DMRS sequences notified from network side can be received by high-level signaling
The information of row, wherein, high-level signaling is that user is specific or cell is specific.For example, the high-level signaling can be but be not limited to
One below：For carrying the signaling of CS hopping pattern informations, being used for carrying the signaling of cell ID offset information, be used for carrying
The signaling of sequence index offset information.
Preferably, in step S104, the following two kinds situation can be divided into：
The CS hopping pattern informations that situation one, basis are received determine that the sequence jump pattern of PUSCH DMRS is sub-frame level
CS Hopping Patterns, and CS saltus steps are carried out according to sub-frame level CS Hopping Pattern；Wherein, using fixed CS values in each subframe,
Across the sub-frames using the CS values of saltus step.
For example, carrying out CS saltus steps according to sub-frame level CS Hopping Pattern includes：Sub-frame level CS Hopping Pattern passes through below equation
One of draw：
Wherein, nsTime slot index is represented,Represent the single-carrier frequency division multiple access (Single included in each ascending time slot
Carrier-Frequency Division Multiple Access, referred to as SC-FDMA) symbolic number, c (ns) represent pseudo- with
Machine sequence.
Especially, for CS Hopping Patterns, the following two kinds processing mode can be divided：Mode one, for R11 or more version
User, it is possible to use sub-frame level or timeslot-level saltus step；Mode two, for user before R11, if not receiving CS Hopping Patterns
Signaling, then giving tacit consent to carries out timeslot-level saltus step.
It should be noted that CS Hopping Patterns can include：Sub-frame level Hopping Pattern is (for example, it is possible to be named as inter-
Subframe hopping mode) and timeslot-level Hopping Pattern (for example, it is possible to be named as intraAndinter-subframe
Hopping mode) two kinds.For example, inter-subframe hopping mode here can represent that network side indicates to connect
Receiving side carries out CS saltus steps, i.e. receiving side in each subframe using fixed CS values according to sub-frame level frequency, and across the sub-frames
CS values using saltus step；IntraAndinter-subframe mode can be the CS hop modes in R10.
The cell ID offset information and/or sequence index offset information that situation two, basis are received obtains PUSCH
The pseudo-random sequence initial value adopted during DMRS sequence jumps, and determine PUSCH DMRS's by the pseudo-random sequence initial value
Sequence jump pattern.
Wherein, PUSCH DMRS sequence jumps can include at least one of：PUSCH DMRS sequence group hoppings,
Sequence jump, the CS saltus steps of PUSCH DMRS sequences in PUSCH DMRS groups.
So, situation two can be divided into following several situations again：
(1) puppet adopted when obtaining PUSCH DMRS sequence group hoppings according to the cell ID offset information that receives with
Machine sequence initial value includes：Pseudo-random sequence initial value c is drawn by one of below equationinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased.
(2) sequence or PUSCH DMRS sequences in PUSCH DMRS groups are obtained according to the cell ID offset information for receiving
CS saltus steps when the pseudo-random sequence initial value that adopted include：Pseudo-random sequence initial value is drawn by one of below equation
cinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Represent sequence index information.
(3) sequence jump or PUSCHDMRS sequences in PUSCHDMRS groups are obtained according to the sequence index offset information for receiving
The pseudo-random sequence initial value adopted during the CS saltus steps of row includes：Pseudo-random sequence initial value is drawn by below equation
cinit：
Wherein,Represent cell ID,Represent sequence index information, Δ 'ssRepresent sequence index biasing.
(4) sequence in PUSCH DMRS groups is obtained according to the cell ID offset information and sequence index offset information for receiving
The pseudo-random sequence initial value adopted when row saltus step or the CS saltus steps of PUSCH DMRS sequences includes：By one of below equation
Draw pseudo-random sequence initial value cinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Represent sequence index information, Δ 'ssTable
Show that sequence index is biased.
Then, the sequence jump figure of PUSCH DMRS is determined based on pseudo-random sequence initial value determined by situation above
Sample.
By this preferred embodiment, the information for the different PUSCH DMRS sequences from network side for receiving is carried out
Corresponding sequence jump, to improve the treatment effeciency and effectiveness of system.
Said method is corresponded to, the embodiment of the present invention additionally provides a kind of sequence jump of uplink demodulation reference signal DMRS
Device.Fig. 2 is the structured flowchart of the sequence jump device of uplink demodulation reference signal DMRS according to embodiments of the present invention, such as schemes
Shown in 2, the device includes：Receiver module 22, for receiving the information of the PUSCH DMRS sequences from network side, wherein,
The information of PUSCH DMRS sequences includes at least one of：CS hopping pattern informations, cell ID offset information, sequence index
Offset information；Determining module 24, coupled to receiver module 22, for the PUSCHDMRS sequences received according to receiver module 22
Information determine sequence jump pattern and/or the sequence jump pattern of PUSCH DMRS；Sequence jump module 26, coupled to determination
Module 24, the sequence jump pattern of PUSCH DMRS and/or sequence jump pattern for determining according to determining module 24 are carried out
Sequence jump.
By said apparatus, determining module 24 is according to receiver module 22, the PUSCH DMRS from network side for receiving
The information of sequence determines the sequence jump pattern of PUSCH DMRS and/or sequence jump pattern, and sequence jump module 26 is according to this
The sequence jump pattern of PUSCH DMRS and/or sequence jump pattern carry out sequence jump, solve in correlation technique due to CS
Hopping Pattern inconsistent and affect the problem of minizone MU user performances, improve the resource utilization of system.
Fig. 3 is the structural frames of the sequence jump device of uplink demodulation reference signal DMRS according to the preferred embodiment of the invention
Figure, as shown in figure 3, determining module 24 can include：Hopping Pattern unit 242, according to the CS saltus steps that receiver module 22 is received
Pattern information determines that the sequence jump pattern of PUSCH DMRS is sub-frame level CS Hopping Pattern, wherein, sub-frame level CS Hopping Pattern
Be when CS saltus steps are carried out in each subframe using fixed CS values, across the sub-frames using the CS values of saltus step.
Preferably, determining module 24 also includes：Saltus step pattern unit 244, according to the cell mark that receiver module 22 is received
Know offset information and/or sequence index offset information is obtained and carries out what at least one PUSCH DMRS sequence jump was adopted
Pseudo-random sequence initial value：Sequence jump in PUSCH DMRS sequence group hoppings, PUSCH DMRS groups, PUSCH DMRS sequences
CS saltus steps；And the sequence jump pattern of PUSCH DMRS is determined according to the pseudo-random sequence initial value.
Process is described in detail to be realized to above-described embodiment with reference to preferred embodiments and drawings.
Embodiment one
The present embodiment proposes a kind of sequence jump method of uplink demodulation reference signal (DMRS), to ensure different districts
Between MU user orthogonal performance or OCC decoding performances.
In implementation process, the sequence jump method of the uplink demodulation reference signal may include steps of：
Step 1, network side in addition to notifying the existing PUSCH DMRS sequence jump relevant informations of R10 to receiving side,
The CS hopping pattern information and/or cell ID offset information and/or sequence rope of PUSCH DMRS sequence are also notified to receiving side
Draw offset information；
Step 2, receiving side receive the PUSCH DMRS sequence jumps relevant information and/or CS hopping pattern informations and/
Or after cell ID offset information and/or sequence index offset information, determine DMRS's according to the described information content for receiving
Sequence jump pattern and saltus step pattern.
Especially, if receiving side does not receive the CS hopping pattern informations and/or cell identity information and/or sequence rope
Draw offset information, then the sequence jump pattern of DMRS is determined according to existing method in R10.
Preferably, in step 1, the lateral receiving side of network notifies the process of CS hopping pattern informations to have the characteristics that：
Network side notifies CS hopping pattern informations by high-level signaling to receiving side, and the attribute of the high-level signaling is that user is specific
Or cell specific (cell-specific) (ue-specific).
Wherein, the CS Hopping Patterns can include：Sub-frame level Hopping Pattern is (for example, it is possible to be named as inter-
Subframe hopping mode) and timeslot-level Hopping Pattern (for example, it is possible to be named as intraAndinter-subframe
Hopping mode) two kinds.For example, inter-subframe hopping mode here can represent that network side indicates to connect
Receiving side carries out CS saltus steps, i.e. receiving side in each subframe using fixed CS values according to sub-frame level frequency, and across the sub-frames
CS values using saltus step；And existing CS hop modes in intraAndinter-subframe mode, as R10.
Preferably, in inter-subframe hopping mode, equation below can be adopted：Or
Especially, when receiving side does not receive CS hopping pattern informations, receiving side is carried out according to the existing hop modes of R10
CS saltus steps.
Preferably, in step 1, network side biases signaling and/or sequence by high-rise to receiving side indicating cell mark
Index offsets signaling.For example, high-level signaling can be user specific (ue-specific) or the specific (cell- of cell
specific).
In step 2, after receiving side receives the cell ID biasing signaling information, PUSCH is determined according to the information
The pseudo-random sequence initial value adopted by DMRS sequence group hoppings.Preferably, receiving side PUSCH DMRS sequences group hopping is adopted
Pseudo-random sequence initial value can be one of：
Wherein, Δ ch represents that cell ID is biased.
If receiving side does not receive cell ID biasing signaling information, receiving side acquiescence is true using existing method in R10
Determine the pseudo-random sequence initial value adopted by PUSCH DMRS sequence group hoppings.
In step 2, after receiving side receives the cell ID biasing signaling and/or sequence index biasing signaling, root
In the PUSCH DMRS groups pseudo-random sequence initial value adopted by sequence jump is determined according to the information.Preferably, receiving side
In the PUSCHDMRS groups pseudo-random sequence initial value adopted by sequence jump can be one of：
Wherein, Δ ch represents that cell ID is biased, Δ 'ssRepresent sequence index biasing.
If receiving side does not receive cell ID biasing and sequence index biases signaling, receiving side acquiescence is using in R10
Existing method determines in the PUSCH DMRS groups pseudo-random sequence initial value adopted by sequence jump.
In step 2, after receiving side receives the cell ID biasing signaling and/or sequence index biasing signaling, root
The pseudo-random sequence initial value adopted by the CS saltus steps of PUSCH DMRS sequences is determined according to the information.Preferably, receiving side DMRS
The pseudo-random sequence initial value adopted by cyclically shifted sequences saltus step can be one of：
Wherein, Δ ch represents that cell ID is biased, Δ 'ssRepresent sequence index biasing.
If receiving side does not receive cell ID biasing signaling and sequence index biasing signaling, receiving side acquiescence is used
In R10, existing method determines the pseudo-random sequence initial value adopted by the CS saltus steps of PUSCH DMRS sequences.
In step 2, receiving side determine PUSCH DMRS sequence groups/group in the CS saltus steps of sequence and sequence adopted
After pseudo-random sequence initial value, pseudo-random sequence according to determined by determines PUSCH DMRS sequence jump patterns.
By the present embodiment, CS collision problems between the up CoMP system medium and small interval MU user of enough effectively solvings and
OCC can not be correctly decoded problem, so as to improve the performance of up CoMP system medium and small interval MU user, improve the profit of system resource
With rate.
Embodiment two
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings.
Then, receiving side receives Disable-sequence-group-hopping signalings and CS Hopping Pattern signalings,
Then receiving side will carry out CS saltus steps according to information indicated by CS Hopping Pattern signalings, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping mode, receiving side will be with
Subframe change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
Saltus step will be carried out with time slot change, i.e., CS saltus steps will be carried out according to the existing mode identical modes of R10：
Wherein,
Embodiment three
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings.
Secondly, receiving side receives Disable-sequence-group-hopping signalings, is not received by CS saltus steps
Mode signaling, then receiving side will carry out CS saltus steps according to the existing modes of R10, i.e.,
Wherein,
Example IV
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings.
Secondly, receiving side receives CS Hopping Pattern signalings, is not received by Disable-sequence-group-
Hopping signalings, then receiving side will carry out CS saltus steps according to information indicated by CS Hopping Pattern signalings, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping mode, receiving side will be with
Subframe change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
Saltus step will be carried out with time slot change, i.e., CS saltus steps will be carried out according to the existing mode identical modes of R10：
Wherein,
Receiving side carries out sequence jump in DMRS sequences group hopping or group according to the existing modes of R10.
Embodiment five
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings.
Secondly, receiving side is not received by Disable-sequence-group-hopping signalings, is also not received by
CS Hopping Pattern signalings, then receiving side will carry out CS saltus steps according to the existing modes of R10, i.e.,：
Wherein,
Receiving side carries out sequence jump in DMRS sequences group hopping or group according to the existing modes of R10.
Embodiment six
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling.
Secondly, receiving side receives Disable-sequence-group-hopping signalings, CS Hopping Pattern signalings, little
Area's mark biases signaling, then receiving side will carry out CS according to CS Hopping Patterns signaling and information indicated by cell ID biasing signaling
Saltus step, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping, receiving side will be with subframe
Change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,Or
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
CS saltus steps will be carried out with time slot change, i.e., CS saltus steps will be carried out according to the existing mode identical modes of R10：
Wherein,Or
Embodiment seven
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling.
Secondly, if receiving side is not received by Disable-sequence-group-hopping signalings, CS jumps are received
Become mode signaling, cell ID biasing signaling, then receiving side will be according to CS Hopping Patterns signaling and cell ID biasing signaling institute
Configured information carry out sequence group/group in sequence jump and CS saltus steps, specifically：
(1) when receiving side to the cell-specific sequence jump information for receiving is Group-hopping-enabled
During signaling, receiving side will carry out sequence group hopping according to information indicated by cell ID biasing signaling：
Wherein,Or
(2) when the cell-specific sequence jump information that receiving side is received is Sequence-hopping-
During enabled signalings, receiving side will carry out sequence jump in group according to information indicated by cell ID biasing signaling：
Wherein,Or
On the other hand, receiving side will carry out CS according to CS Hopping Patterns signaling and information indicated by cell ID biasing signaling
Saltus step, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping mode, receiving side will be with
Subframe change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,Or
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
Saltus step will be carried out with time slot change, i.e., saltus step will be carried out according to the existing modes of R10：
Wherein,Or
Embodiment eight
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling.
Secondly, receiving side is not received by Disable-sequence-group-hopping signalings and CS Hopping Patterns letter
Order, but receive cell ID biasing signaling, then receiving side will carry out sequence according to information indicated by cell ID biasing signaling
Group/group in sequence jump and CS saltus steps, specifically：
(1) when receiving side to the cell-specific sequence jump information for receiving is Group-hopping-enabled
During signaling, receiving side will carry out sequence group hopping according to information indicated by cell ID biasing signaling：
Wherein,Or
(2) when the cell-specific sequence jump information that receiving side is received is Sequence-hopping-
During enabled signalings, receiving side will carry out sequence jump in group according to information indicated by cell ID biasing signaling：
Wherein,Or
Receiving side will carry out CS saltus steps according to the existing CS Hopping Patterns of R10 and information indicated by cell ID biasing signaling：
Wherein,Or
Embodiment nine
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling, sequence index biasing signaling.
Secondly, receiving side receives Disable-sequence-group-hopping signalings, CS Hopping Pattern signalings, little
Area's mark biasing signaling and sequence index biasing signaling, then receiving side will be according to CS Hopping Patterns signaling and cell ID biasing letter
Information indicated by order carries out CS saltus steps, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping mode, receiving side will be with
Subframe change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,Or
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
Saltus step will be carried out with time slot change, i.e., saltus step will be carried out according to the existing modes of R10：
Wherein,Or
Embodiment ten
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling, sequence index biasing signaling.
Secondly, receiving side is not received by Disable-sequence-group-hopping signalings, receives CS saltus steps
Mode signaling, cell ID biasing signaling and sequence index biasing signaling, then receiving side will be according to CS Hopping Pattern signalings, cell
Mark biasing signaling and sequence index biasing signaling indicated by information carry out sequence group/group in sequence jump and CS saltus steps, specifically
Ground：
(1) when receiving side to the cell-specific sequence jump information for receiving is Group-hopping-enabled
During signaling, receiving side will carry out sequence group hopping according to information indicated by cell ID biasing signaling：
Wherein,Or
(2) when the cell-specific sequence jump information that receiving side is received is Sequence-hopping-
During enabled signalings, receiving side will bias signaling and information indicated by sequence index biasing signaling according to cell ID and carry out group
Interior sequence jump：
Wherein,Or
On the other hand, receiving side will be according to CS Hopping Pattern signalings, cell ID biasing signaling and sequence index biasing institute
Configured information carries out CS saltus steps, specifically：
(1) when CS Hopping Patterns signalling information content is inter-subframe hopping mode, receiving side will be with
Subframe change carries out saltus step, preferably can carry out saltus step according to pattern described in below equation：
Or
Wherein,Or
(2) when CS hopping pattern informations content is intraAndinter-subframe hopping mode, receiving side
Saltus step will be carried out with time slot change, i.e., saltus step will be carried out according to the existing modes of R10：
Wherein,Or
Embodiment 11
A kind of sequence jump method of up DMRS is present embodiments provided, the method can be：
First, network side is sent Disable-sequence-group-hopping signalings, is sent out to receiving side by high-rise
Send CS Hopping Pattern signalings, cell ID biasing signaling, sequence index biasing signaling.
Secondly, receiving side is not received by Disable-sequence-group-hopping signalings and CS Hopping Patterns letter
Order, but receive cell ID biasing signaling and sequence index biasing signaling, then receiving side will bias signaling according to cell ID
With sequence index biasing signaling indicated by information carry out sequence group/group in sequence jump and CS saltus steps, specifically：
(1) when receiving side to the cell-specific sequence jump information for receiving is Group-hopping-enabled
During signaling, receiving side will carry out sequence group hopping according to information indicated by cell ID biasing signaling：
Wherein,Or
(2) when the cell-specific sequence jump information that receiving side is received is Sequence-hopping-
During enabled signalings, receiving side will bias signaling and information indicated by sequence index biasing signaling according to cell ID and carry out group
Interior sequence jump：
Wherein,Or
On the other hand, receiving side will be according to the existing CS Hopping Patterns of R10 and cell ID biasing signaling and sequence index
Information indicated by biasing signaling carries out CS saltus steps：
Wherein,Or
In sum, the present embodiments relate in coordinated multipoint transmission communication system uplink demodulation reference signal sequence
Jump method, solves the problems, such as to affect minizone MU user performances due to the inconsistent of CS Hopping Patterns in correlation technique,
Improve the resource utilization of system.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general
Computing device realizing, they can be concentrated on single computing device, or are distributed in multiple computing devices and are constituted
Network on, alternatively, they can be realized with the executable program code of computing device, such that it is able to be stored in
Executed by computing device in storage device, or they are fabricated to each integrated circuit modules respectively, or by them
Multiple modules or step be fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (13)
1. a kind of sequence jump method of uplink demodulation reference signal DMRS, it is characterised in that comprise the following steps：
Receive the information of the Physical Uplink Shared Channel PUSCH DMRS sequences from network side, wherein, the PUSCHDMRS sequences
The information of row includes one below：Cyclic shift CS hopping pattern information；Sequence index offset information；CS hopping pattern informations and
Cell ID offset information；Cell ID offset information and sequence index offset information；CS hopping pattern informations and sequence index
Offset information；CS hopping pattern informations, cell ID offset information and sequence index offset information；
Information according to the PUSCH DMRS sequences for receiving determines the sequence jump pattern and/or sequence of PUSCH DMRS
Saltus step pattern, and the sequence jump pattern and/or sequence jump pattern according to the PUSCH DMRS for determining carries out sequence jump
Become.
2. method according to claim 1, it is characterised in that receive the PUSCH DMRS sequences from the network side
The information of row includes：
The information that the PUSCH DMRS sequences notified from the network side are received by high-level signaling, wherein, the height
Layer signaling is that user is specific or cell is specific.
3. method according to claim 1, it is characterised in that according to the information of the PUSCH DMRS sequences for receiving
Determine the sequence jump pattern of PUSCH DMRS, and the sequence jump pattern according to the PUSCH DMRS for determining carries out sequence
Saltus step includes：
The CS hopping pattern informations according to receiving determine that the sequence jump pattern of the PUSCH DMRS is sub-frame level CS
Hopping Pattern, and CS saltus steps are carried out according to the sub-frame level CS Hopping Pattern；Wherein, using fixed CS in each subframe
Value, across the sub-frames using the CS values of saltus step.
4. method according to claim 3, it is characterised in that carry out CS saltus step bags according to the sub-frame level CS Hopping Pattern
Include：
The sub-frame level CS Hopping Pattern is drawn by one of below equation：
Wherein, nsTime slot index is represented,Represent the single-carrier frequency division multiple access SC-FDMA symbols included in each ascending time slot
Number, c (ns) represent pseudo-random sequence.
5. method according to claim 1, it is characterised in that according to the information of the PUSCH DMRS sequences for receiving
Determine that the sequence jump pattern of PUSCH DMRS includes：
The cell ID offset information and/or sequence index offset information according to receiving obtains PUSCH DMRS sequences and jumps
The pseudo-random sequence initial value adopted during change, and determine that the sequence of the PUSCH DMRS is jumped by the pseudo-random sequence initial value
Become pattern.
6. method according to claim 5, it is characterised in that the PUSCH DMRS sequence jumps include following at least it
One：
Sequence jump, the CS saltus steps of PUSCH DMRS sequences in PUSCH DMRS sequence group hoppings, PUSCH DMRS groups.
7. method according to claim 5, it is characterised in that the cell ID offset information according to receiving is obtained
The pseudo-random sequence initial value adopted during PUSCH DMRS sequence group hoppings includes：
The pseudo-random sequence initial value c is drawn by one of below equationinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased.
8. method according to claim 5, it is characterised in that the cell ID offset information according to receiving is obtained
The pseudo-random sequence initial value adopted during the CS saltus steps of sequence or PUSCH DMRS sequences in PUSCH DMRS groups includes：
The pseudo-random sequence initial value c is drawn by one of below equationinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Represent sequence index information.
9. method according to claim 5, it is characterised in that the sequence index offset information according to receiving is obtained
The pseudo-random sequence initial value adopted during the CS saltus steps of sequence jump or PUSCH DMRS sequences in PUSCH DMRS groups includes：
The pseudo-random sequence initial value c is drawn by below equationinit：
Wherein,Represent cell ID,Expression sequence index information, Δ 'ssRepresent sequence index biasing.
10. method according to claim 5, it is characterised in that according to the cell ID offset information for receiving and
The sequence index offset information is adopted when obtaining the CS saltus steps of sequence jump or PUSCH DMRS sequences in PUSCH DMRS groups
Pseudo-random sequence initial value includes：
The pseudo-random sequence initial value c is drawn by one of below equationinit：
Wherein,Represent that cell ID, Δ ch represent that cell ID is biased,Expression sequence index information, Δ 'ssRepresent sequence
Column index is biased.
11. a kind of sequence jump devices of uplink demodulation reference signal DMRS, it is characterised in that include：
Receiver module, for receiving the information of the Physical Uplink Shared Channel PUSCH DMRS sequences from network side, wherein, institute
The information for stating PUSCH DMRS sequences includes one below：Cyclic shift CS hopping pattern information；Sequence index offset information；CS
Hopping pattern information and cell ID offset information；Cell ID offset information and sequence index offset information；CS Hopping Patterns
Information and sequence index offset information；CS hopping pattern informations, cell ID offset information and sequence index offset information；
Determining module, the information of the PUSCH DMRS sequences for being received according to the receiver module determine PUSCH
The sequence jump pattern of DMRS and/or sequence jump pattern；
Sequence jump module, for the sequence jump pattern of the PUSCH DMRS that determines according to the determining module and/or
Sequence jump pattern carries out sequence jump.
12. devices according to claim 11, it is characterised in that the determining module includes：
Hopping Pattern unit, determines the PUSCH DMRS according to the CS hopping pattern informations that the receiver module is received
Sequence jump pattern be sub-frame level CS Hopping Pattern, wherein, the sub-frame level CS Hopping Pattern be when CS saltus steps are carried out
Using fixed CS values in each subframe, across the sub-frames using the CS values of saltus step.
13. devices according to claim 11 or 12, it is characterised in that the determining module also includes：
Saltus step pattern unit, the cell ID offset information received according to the receiver module and/or the sequence rope
Drawing offset information acquisition carries out the pseudo-random sequence initial value adopted by least one PUSCH DMRS sequence jump：
Sequence jump, the CS saltus steps of PUSCH DMRS sequences in PUSCH DMRS sequence group hoppings, PUSCH DMRS groups；And according to this
Pseudo-random sequence initial value determines the sequence jump pattern of the PUSCH DMRS.
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| PCT/CN2012/079089 WO2013044674A1 (en) | 2011-09-30 | 2012-07-24 | Sequence hopping method and device for uplink demodulation reference signal |
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| CN104796845B (en) * | 2014-01-16 | 2020-04-10 | 电信科学技术研究院 | Device-to-device signal transmission method and device |
| KR102234813B1 (en) * | 2014-03-31 | 2021-04-01 | 후지츠 코네쿠텟도 테크노로지즈 가부시키가이샤 | Signal retransmission apparatus and method and communication system |
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| CN101645868A (en) * | 2009-08-31 | 2010-02-10 | 中兴通讯股份有限公司 | Transmission method and device of reference signals |
| CN101882980A (en) * | 2010-05-06 | 2010-11-10 | 中兴通讯股份有限公司 | Method and system for indicating uplink demodulation reference signal |
| CN102413572A (en) * | 2011-09-28 | 2012-04-11 | 中兴通讯股份有限公司 | DMRS (demodulation reference signal) as well as sending method and device thereof |
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| CN101645868A (en) * | 2009-08-31 | 2010-02-10 | 中兴通讯股份有限公司 | Transmission method and device of reference signals |
| CN101882980A (en) * | 2010-05-06 | 2010-11-10 | 中兴通讯股份有限公司 | Method and system for indicating uplink demodulation reference signal |
| CN102413572A (en) * | 2011-09-28 | 2012-04-11 | 中兴通讯股份有限公司 | DMRS (demodulation reference signal) as well as sending method and device thereof |
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