CN103326758B - Downlink demodulation reference signal initial configuration parameter notice, method of reseptance and device - Google Patents

Downlink demodulation reference signal initial configuration parameter notice, method of reseptance and device Download PDF

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Publication number
CN103326758B
CN103326758B CN201210072659.9A CN201210072659A CN103326758B CN 103326758 B CN103326758 B CN 103326758B CN 201210072659 A CN201210072659 A CN 201210072659A CN 103326758 B CN103326758 B CN 103326758B
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value
base station
marks
terminal
initialization
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CN103326758A (en
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郭森宝
孙云锋
王赵
张峻峰
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2013/072899 priority patent/WO2013139262A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention discloses a kind of notice, method of reseptance and the devices of downlink demodulation reference signal initial configuration parameter.Wherein, which is applied to base station, and downlink demodulation reference signal initial configuration parameter includes identification (ID) mark and/or scrambling code identification, including：It is identified Step 1: N number of ID is configured for terminal by the special high-level signaling of user in base station；Step 2: base station judges in N number of ID mark to identify with the presence or absence of two or more ID identical, the initialization value of one of in the following ways determining downlink DMRS sequences is determined according to judging result；Base station will be sent to terminal for being determined that the scrambling code identification nSCID of the initialization value of downlink DMRS sequences and/ID is identified.By the invention it is possible to realize that dynamic that a UE interferes other UE is orthogonal and the switching of interference randomization, so as to reach the interference for offsetting user, improve the accuracy rate of data receiver, under Scenario4 scenes cell splitting gain effect.

Description

Downlink demodulation reference signal initial configuration parameter notice, method of reseptance and device
Technical field
The present invention relates to the communications fields, lead in particular to a kind of downlink demodulation reference signal initial configuration parameter Know, method of reseptance and device.
Background technology
Long term evolution (Long Term Evolution, referred to as LTE) system after it experienced the several versions of R8/9/10, Prepare research R11 technologies successively again.R8 products in part start gradually commercial at present, and R9 and R10 need further product programming.
R8 the and R9 stages are being experienced, R10 increases many new characteristics again on the basis of the above two, for example, demodulation Reference signal (Demodulation Reference Signal, referred to as DMRS), channel state information reference signals Pilot tones characteristic and antennas such as (Channel State Information Reference Signal, referred to as CSI-RS) Enhancing (ehanced Inter-Cell are offset in the transmission and feedback characteristics etc. such as support, particularly inter-cell interference Interference Cancellin, referred to as eICIC) technology is on the basis for considering R8/9ICIC, further consideration Interference avoidance technique between cell.For the technology of interference problem between solution cell, mainly consider together at R10 initial stages in stage Area interference under network forming avoids, wherein mainly consider eICIC technologies and multipoint cooperative (Coordinated Multi-point, Referred to as CoMP) technology.
CoMP gives one or more user equipment (User Equipment, letter as the term suggests exactly multiple nodes cooperate Referred to as UE) in identical running time-frequency resource or different running time-frequency resources carry out transmission data.This technology can be reduced between cell Interference, improve the throughput of cell edge, expand MPS process.But due to discussing that the later stage introduces in view of heterogeneous network More scenes, the time restriction of complexity and the R10 discussion of CoMP technologies are final to determine not introducing in the R10 stages additionally CoMP standardized contents, but the demand of CoMP parts can be considered in design CSI-RS and design, so CoMP technologies exist Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) RAN1 (Radio Access Network, wireless access network) after 60bis meetings with regard to without carrying out further discussion.
CoMP transmission mode mainly includes joint transmission (Joint Transmission, referred to as JT), cooperative scheduling (Coordinated Scheduling, referred to as CS)/cooperative beam figuration (Coordinated Beamforming, referred to as CB).For JT, since different transmission nodes (Transmission Point, referred to as TP) passes jointly for a UE Transmission of data, UE needs need further to study according to the cell ID of which TP to generate DMRS sequences.Because in R10 systems In system, UE can generate DMRS sequences according to synchronous or serving cell cell ID, so not being related to producing according to different ID The problem of raw different DMRS sequences.UE first generates pseudo-random sequence initial value c using cell IDinit, cinitIt is for generating DMRS Necessary to sequence, cinitCalculation formula it is as follows：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, and X is the specific (Cell- of cell Specific parameter), nSCIDFor scrambling code identification, nSCID=0,1, value is by under in downstream grants (DL_grant) Scrambling code identification instructions field (n in row Entitlement Control Message form (DCI format)SCID) come what is indicated.
Calculating cinitAnd then according to cinitMethod according to 7.2 sections in 3GPP LTE 36.211 generates pseudorandom SequenceThen, DMRS reference signal sequences are generated using equation below：
Wherein, c (2m) is utilizes cinitThe pseudo-random sequence of generation, r (m) are the DMRS sequences ultimately generated,For System maximum bandwidth, normal/extended cyclic prefix are Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbol general cyclic prefix/extended cyclic prefix.
In R9/R10 (Release 9/Release 10) system, ID marks are a fixed values, and for R11 (Release11) for system, a fixed ID mark has been unable to meet demand, therefore can be configured in R11 systems more A ID marks, can be dynamically switched to different TP or the different nodes with different community ID, therefore, switching in this way R11 (R10) user to TP can utilize multi-user-multiple-input and multiple-output (Multiple-User Multiple-Input Multiple-Output, referred to as MU-MIMO) technology transmits data, so as to saving resource, at this moment, MU-MIMO user DMRS sequences are identical, therefore, can preferably make the DMRS of different user orthogonal, can also make different user using minimum Mean square deviation (Minimum Mean Square Error, referred to as MMSE) technology is interfered to offset pairing user, so as to fulfill number According to the accuracy rate of reception, the capacity of system is further improved.Moreover, under 4 scenes of Scenario, it is same due to being located at Different nodes under Cell (cell) have identical ID, in this way, being configured to transmission mode 8 under these nodes for being located at (Transmission Mode 8, referred to as TM8) or transmission mode 9 (Transmission Mode 9, referred to as TM9) For UE, UE can only determine scrambling code identification as 0 or 1 according to the mode in above-mentioned formula 1, and in formula 1 other values (such as ID is identified) it is fixed, therefore UE can only obtain two DMRS sequences, can limit the cell splitting under Scenario4 in this way Gain.
UE is configured for TM9, is needed in Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) or enhancing Physical Downlink Control Channel (enhanced Physical Downlink Control Channel, referred to as ePDCCH) (one is DCI Format 1A to two DCI Format of region detection, one For DCI Format 2C).DCI Format 2C are mainly made of following information：
1) carrier wave instructions field (being configured to multi-carrier polymerizing UE needs to detect this bit).
2) resource allocation type indicate, be used by being used to indicate UE, base station transmission data resource allocation type 0 or Resource allocation type 1.If downlink bandwidth is less than or equal to 10 resource blocks (Resource Block, referred to as RB), it is not present Resource allocation head region.
3) resource allocation bit domain.
4) transmission power control bit domain, for Physical Uplink Control Channel (Physical Uplink Control Channel, referred to as PUCCH) power control.
5) downlink distribution index, the downlink distribution index exist only in time division duplex (Time Division Duplex, referred to as TDD) system.
6) mixed self-adapting retransmission request (Hybrid Adapt Retransmission Request, referred to as HARQ) Process instruction number.
7) antenna port, scrambling code identification and number of plies instructions field.
8) measuring reference signals (Sounding Reference Signal, referred to as SRS) are monitored and asks domain.
9) transmission block (Transmission Block, referred to as TB) information instructions field, the transmission block include TB 1 and TB 2, the information composition of each transmission block is as follows：
TB 1 is made of following information：
1) Modulation and Coding Scheme instructions field (IMCS)。
2) new data instructions field (New Data Indication, referred to as NDI).
3) redundancy versions instructions field (rvidx).
TB 2 is made of following information：
1) Modulation and Coding Scheme instructions field (IMCS)。
2) new data instructions field (NDI).
3) redundancy versions instructions field (rvidx).
If two transmission blocks (TB 1 and TB 2) are all enabled, TB1 is mapped to code word 0, and TB2 is mapped to code word 1.If It is only enabled there are one TB, then TB is mapped to code word in the way of table 1, please refers to table 1：
The mapping of table 1, transmission block to code word (single transport block enables)
Table 2 is please referred to, table 2 shows antenna port, scrambling code identification and number of plies instructions field.Wherein, code word is enabled for single, As shown in table 2, a corresponding preceding primary corresponding code word is only supported to utilize the weights of 2,3,4 layers of transmission in value=4,5,6 It passes.
Table 2, antenna port, scrambling code identification and number of plies instructions field
For one layer of transmission of single codeword, as the corresponding Modulation and Coding Scheme instructions field IMCS=0 of TB, and redundancy versions refer to When showing domain rvidx=1, show that corresponding TB is not enabled.Then another enabled code word is according to antenna port, scrambling code identification Transmission antenna port, scrambling code identification and the number of plies are selected with number of plies instructions field.As shown in table 2, work as antenna port, scrambling code identification and During the Value=0 of number of plies instructions field, the configuration of corresponding base station is 1layer, port 7, nSCID=0 (i.e. 1 layer transmission, antenna Port is 7, scrambling code identification 0), and so on, as instructions field Value=1,1layer, port 7, nSCID=1；Work as instruction During the Value=2 of domain, 1layer, port 8, nSCID=0；As instructions field Value=3,1layer, port 8, nSCID=1.
Dicode word is transmitted for two layers, when working as antenna port, scrambling code identification and number of plies instructions field Value=0,2layers, Ports 7-8, nSCID=0；As instructions field Value=1,2layers, ports 7-8, nSCID=1；And so on, work as the number of plies During more than 2, scrambling code identification instruction acquiescence nSCID=0.
In conclusion in CoMP technologies, for R10 systems (can be referred to as legacy version), UE can be according to Synchronous or serving cell cell ID generates DMRS sequences, has been carried out being described in detail before specific calculation, The process is not related to lead to the problem of different DMRS sequences according to different ID.However, R11 systems (can be referred to as New version) for, may switching at runtime to different IP or the different nodes with different community ID, also, R10 systems The user of system may also transmit data using MU-MIMO technologies, and the DMRS sequences of the user of MU-MIMO are identical can be more preferable So that different user DMRS is orthogonal and different user interferes user to offset using MMSE technologies, based on above-mentioned feelings The presence of condition, R11 systems need a kind of method that different DMRS sequences are generated according to different ID.
In addition, under Scenario4 scenes, the different nodes under same cell have an identical ID, and these UE under node can only select two scrambling code identifications, can limit the cell splitting gain under Scenario4 scenes in this way.
For in the related art can not from new version initialization mode switching at runtime to legacy version initialization mode, and It supports that dynamic instruction can not be carried out to the selection of initiation parameter in the case of various legacy versions, and causes in R11 systems The orthogonal and quasi-orthogonal CoMP technique effects of DMRS are bad and cell splitting gain is restricted under Scenario4 scenes asks Topic, currently no effective solution has been proposed.
Invention content
For the orthogonal and quasi-orthogonal CoMP technique effects of the DMRS in the relevant technologies in R11 systems it is bad and The restricted problem of cell splitting gain under Scenario4 scenes, the present invention provides a kind of downlink demodulation reference signal sequences Sending, receiving method and device, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of notice side of downlink demodulation reference signal initial configuration parameter Method, applied to base station, wherein, downlink demodulation reference signal initial configuration parameter includes identification (ID) and identifies and/or disturb Code mark, this method include：Including：
It is identified Step 1: N number of ID is configured for terminal by the special high-level signaling of user in base station, wherein, N is whole more than 1 Number, ID identify to generate initialization value necessary to downlink demodulation reference signal (DMRS) sequence；
Step 2: base station notifies terminal by high-level signaling, when carrying out data stream transmitting in a manner that the number of plies is more than 1 or 2, First ID marks are determined from N number of ID marks according to high-level signaling and/or determine scrambling code identification nSCIDValue carry out downlink The initialization of DMRS sequences and/or, base station judge it is identical with the presence or absence of two or more ID marks in N number of ID mark, according to judgement As a result determine to determine the initialization value of downlink DMRS sequences one of in the following ways, if it is judged that be yes, then using just Formula one is determined operation, if it is judged that being no, employing mode two is determined operation：
Mode one：Base station determines the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh,
Mode two：Base station determines the initialization value of downlink DMRS sequences according to the following formula：Formula 2, wherein, nsFor the time slot index in a radio frames, X is high level One of N number of ID marks of configuration, nSCIDFor scrambling code identification, and value is 0 or 1, and base station leads to the mode for selecting initiation parameter The mode for crossing at least one of is notified to terminal：A, acquiescence scrambling code identification nSCID=0, and using in DL grant dynamic signalings NSCID dynamic instructions ID marks X value, scrambling code identification n B, is indicated by nSCID in DL grant dynamic signalingsSCID Value, while using nSCID instruction ID mark X value and C, by descending control information format DCI format New data instructions field NDI instruction ID mark X value, n is indicated by nSCIDSCIDValue；
Step 3: base station will be for determining the scrambling code identification n of the initialization value of downlink DMRS sequencesSCIDWith/ID marks It is sent to terminal.
Preferably, when the number of ID marks that base station is terminal configuration is 2, base station determines downlink according to judging result The initialization value of DMRS sequences includes：It is identical that base station judges that 2 ID are identified whether；If it is judged that it is yes, base station is according to side Formula one determines the initialization value of downlink DMRS sequences；If it is judged that it is no, base station determines downlink DMRS sequences according to mode two The initialization value of row.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, base station determines downlink according to judging result The initialization value of DMRS sequences includes：Base station judges that N number of ID identifies whether that there are 2 identical ID marks；If it is judged that It is yes, base station determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, base station determines downlink DMRS according to mode two The initialization value of sequence.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, base station determines downlink according to judging result The initialization value of DMRS sequences includes：Base station judges that N number of ID identifies whether all same；If it is judged that be it is yes, base station according to Mode one determines the initialization value of downlink DMRS sequences；Otherwise, base station determines the initialization of downlink DMRS sequences according to mode two Value.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, base station determines downlink according to judging result The initialization value of DMRS sequences includes：Base station judges that N number of ID identifies whether that there are different ID marks；If it is judged that it is It is that base station determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, base station determines downlink DMRS sequences according to mode two The initialization value of row.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, base station determines downlink according to judging result The initialization value of DMRS sequences includes：It is identical there are part that base station judges that N number of ID is identified whether；If it is judged that it is yes, base It stands and the initialization value of downlink DMRS sequences is determined to the ID mark employing modes 1 with identical value, other ID are identified, are used Mode 2 determines the initialization value of downlink DMRS sequences.
Preferably, base station notifies terminal to carry out data stream transmitting in a manner of being more than 1 or 2 by the number of plies high-level signaling When, determine that the first ID marks include from N number of ID marks according to high-level signaling：When N=2 ID mark is configured in high level, base It stands and terminal is notified when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, determine to carry out downstream modulation reference The parameter value of ID marks used in signal initialization；When the high-level signaling value of 1bit is 0, during 2 ID are identified First the first ID of conduct mark；When the high-level signaling value of 1bit is 1, using second in 2 ID marks as first ID is identified.
Preferably, base station notifies terminal to carry out data stream transmitting in a manner of being more than 1 or 2 by the number of plies high-level signaling When, the scrambling code identification n according to used in high-level signaling determines downlink demodulation reference signal initializationSCIDParameter value include： Base station notifies terminal when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, carries out downstream modulation with reference to letter Number initialization used in scrambling code identification parameter value；When the high-level signaling value of 1bit is 0, base station is with nSCID=0 carries out The initialization of downlink demodulation reference signal sequence；When the high-level signaling value of 1bit is 1, base station is with nSCID=1 carries out downlink The initialization of demodulated reference signal sequence.
Preferably, the value range of each ID marks is one of the following：(0-503), (0-511), (0-1023) and (0-1637)。
According to another aspect of the present invention, a kind of recipient of downlink demodulation reference signal initial configuration parameter is provided Method, applied to terminal, wherein, downlink demodulation reference signal initial configuration parameter includes scrambling code identification and/or identification (ID) it identifies, this method includes：
It is identified Step 1: terminal receives base station by N number of identification ID that the special high-level signaling of user is configured, wherein, N To be more than 1 integer, ID identifies the initialization value for generating downlink demodulation reference signal (DMRS) sequence；
Step 2: terminal judges that N number of ID is identical with the presence or absence of two or more ID marks in identifying, determined according to judging result The initialization value of downlink DMRS sequences is determined one of in the following ways, if it is judged that being yes, then employing mode one carries out Operation is determined, if it is judged that being no, employing mode two is determined operation：
Mode one：Terminal determines the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh,
Mode two：Terminal determines the initialization value of downlink DMRS sequences according to the following formula：Formula 2, wherein, nsFor the time slot index in a radio frames, X is high level One of N number of ID marks of configuration, nSCIDFor scrambling code identification, and value is 0 or 1, and terminal is true by way of at least one of Determine the mode of the selection initiation parameter of base station notice：A, acquiescence scrambling code identification nSCID=0, and utilize nSCID dynamic instructions ID The value of X is identified, scrambling code identification n B, is indicated by the nSCID in DL grant dynamic signalingsSCIDValue, utilize simultaneously The value and C of nSCID instruction ID marks X pass through the new data instructions field in descending control information format DCI format The value of NDI instruction ID marks X, n is indicated by nSCIDSCIDValue；
And/or terminal receives the high-level signaling that base station is sent, and data stream transmitting is carried out in a manner that the number of plies is more than 1 or 2 When, terminal determines the first ID marks from N number of ID marks according to high-level signaling and/or determines scrambling code identification nSCIDValue into The initialization of row downlink DMRS sequences；
Step 3: terminal generates downlink according to the initialization mode and initiation parameter that downlink DMRS sequences are determined DMRS sequences.
Preferably, when the number of the ID marks of base station configuration is 2, terminal determines downlink DMRS sequences according to judging result Initialization value include：It is identical that terminal judges that 2 ID are identified whether；If it is judged that it is yes, terminal is determined according to mode one The initialization value of downlink DMRS sequences；If it is judged that it is no, terminal determines the initial of downlink DMRS sequences according to mode two Change value.
Preferably, when the number of the ID marks of base station configuration is more than 2, terminal determines downlink DMRS sequences according to judging result The initialization value of row includes：Terminal judges that N number of ID identifies whether that there are 2 identical ID marks；If it is judged that it is yes, end End determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, terminal determines downlink DMRS sequences according to mode two Initialization value.
Preferably, when the number of the ID marks of base station configuration is more than 2, terminal determines downlink DMRS sequences according to judging result The initialization value of row includes：Terminal judges that N number of ID identifies whether all same；If it is judged that it is yes, terminal is according to mode one Determine the initialization value of downlink DMRS sequences；Otherwise, terminal determines the initialization value of downlink DMRS sequences according to mode two.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, terminal determines downlink according to judging result The initialization value of DMRS sequences includes：Terminal judges that N number of ID identifies whether that there are different ID marks；If it is judged that it is It is that terminal determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, terminal determines downlink DMRS sequences according to mode two The initialization value of row.
Preferably, when base station is more than 2 for the number of the ID marks of terminal configuration, terminal determines downlink according to judging result The initialization value of DMRS sequences includes：It is identical there are part that terminal judges that N number of ID is identified whether；If it is judged that it is yes, end The initialization value that downlink DMRS sequences are determined to the ID mark employing modes 1 with identical value is held, other ID are identified, are used Mode 2 determines the initialization value of downlink DMRS sequences.
Preferably, terminal receives the notice terminal that base station is sent and carries out data stream transmitting in a manner that the number of plies is more than 1 or 2 High-level signaling when, terminal according to high-level signaling from N number of ID mark in determine the first ID mark include：When N=2 is configured in high level During a ID marks, base station notifies terminal that terminal is true when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling Surely the parameter value of ID marks used in downlink demodulation reference signal initialization is carried out；When the high-level signaling value of 1bit is 0 When, first during 2 ID are identified identifies as the first ID；When the high-level signaling value of 1bit is 1,2 ID are identified In second the first ID of conduct mark.
Preferably, terminal receives the notice terminal that base station is sent and carries out data stream transmitting in a manner that the number of plies is more than 1 or 2 High-level signaling when, determine downlink demodulation reference signal initialization used in scrambling code identification nSCIDParameter value include：Base It stands and terminal is notified when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, terminal determines to carry out downstream modulation Scrambling code identification parameter value used in reference signal initialization；When the high-level signaling value of 1bit is 0, terminal is with nSCID= 0 carries out the initialization of downlink demodulation reference signal sequence；When the high-level signaling value of 1bit is 1, base station side nSCID=1 carries out The initialization of downlink demodulation reference signal sequence.
Preferably, the value range of each ID marks is one of the following：(0-503), (0-511), (0-1023) and (0-1637)。
In accordance with a further aspect of the present invention, a kind of notice dress of downlink demodulation reference signal initial configuration parameter is provided It puts, positioned at base station, wherein, downlink demodulation reference signal configuration parameter includes identification (ID) mark and/or scrambling code identification, should Device includes：N number of ID marks are configured for terminal for passing through the special high-level signaling of user in configuration module, wherein, N is more than 1 Integer, ID identify to generate initialization value necessary to downlink demodulation reference signal DMRS sequences；First determining module, is used for Judge in N number of ID mark to identify with the presence or absence of two or more ID it is identical, according to judging result determine to use unit identified below it The initialization mode of one determining downlink DMRS sequences, if it is judged that being yes, then the first determination unit is determined operation, such as Fruit judging result is no, and operation is determined using the second determination unit；And/or second determining module, for passing through high-rise letter Notice terminal is enabled, when carrying out data stream transmitting in a manner that the number of plies is more than 1 or 2, is determined from N number of ID marks according to high-level signaling Go out the first ID marks and/or determine scrambling code identification nSCIDValue carry out downlink DMRS sequences initialization；Notification module is used for The scrambling code identification n of the initialization value of downlink DMRS sequences will be determinedSCIDTerminal is sent to the/the one ID marks.
Preferably, the first determination unit, for determining the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh；Second determination unit, for determining the initialization value of downlink DMRS sequences according to the following formula：Formula 2, wherein, nsFor the time slot index in a radio frames, X is high level One of N number of ID marks of configuration, nSCIDFor scrambling code identification, and value is 0 or 1, will select the mode of initiation parameter by with At least one lower mode is notified to terminal：A, acquiescence scrambling code identification nSCID=0, and utilize the nSCID in nSCID dynamic signalings Dynamic instruction ID identifies the value of X, B, indicates scrambling code identification n by the nSCID in DL grant dynamic signalingsSCIDValue, Using the value of nSCID instruction ID marks X and C, pass through the new data in descending control information format DCI format simultaneously The value of instructions field NDI instruction ID marks X, n is indicated by nSCIDSCIDValue.
Preferably, the value range of each ID marks is one of the following：(0-503), (0-511), (0-1023) and (0-1637)。
According to another aspect of the invention, a kind of reception dress of downlink demodulation reference signal initial configuration parameter is provided It puts, positioned at terminal, wherein, downlink demodulation reference signal initial configuration parameter includes scrambling code identification and/or identification ID is marked Know, which includes：Receiving module is marked for receiving base station by N number of identification ID that the special high-level signaling of user is configured Know, wherein, N is the integer more than 1, and ID identifies the initialization value for generating downlink demodulation reference signal (DMRS) sequence；The Three determining modules, it is identical with the presence or absence of two or more ID marks in N number of ID marks for judging, it determines to use according to judging result One of unit identified below determines the initialization value of downlink DMRS sequences, if it is judged that being yes, then determines list using third Member is determined operation, if it is judged that being no, operation is determined using the 4th determination unit：And/or the 4th determining mould Block for receiving the high-level signaling of base station transmission, when carrying out data stream transmitting in a manner that the number of plies is more than 1 or 2, is believed according to high level It enables and the first ID marks is determined from N number of ID marks and/or determine scrambling code identification nSCIDValue carry out downlink DMRS sequences Initialization；Generation module, under the initialization mode according to the downlink DMRS sequences determined and initiation parameter generation Row DMRS sequences.
Preferably, third determination unit, for determining the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh；4th determination unit, for determining the initialization value of downlink DMRS sequences according to the following formula：Formula 2, wherein, nsFor the time slot index in a radio frames, X is high level One of N number of ID marks of configuration, nSCIDFor scrambling code identification, and value receives base station for 0 or 1 by way of at least one of The mode of the selection initiation parameter of notice：A, acquiescence scrambling code identification nSCID=0, and utilize nSCID dynamic instructions ID marks X's B, value indicates scrambling code identification n by the nSCID in DL grant dynamic signalingsSCIDValue, while using nSCID indicate The value and C of ID marks X indicate ID marks by the new data instructions field NDI in descending control information format DCI format Know the value of X, n is indicated by nSCIDSCIDValue.
Preferably, the value range of each ID marks is one of the following：(0-503), (0-511), (0-1023) and (0-1637)。
By the present invention, base station judges to whether there is in the multiple above-mentioned ID marks being configured by the special high-level signaling of user More than two above-mentioned ID marks are identical, according to judging result determine the first scrambling code identification value and/or, when base station pass through it is above-mentioned When the special high-level signaling of user notifies that above-mentioned terminal is carried out data transmission using the transport layer of the default number of plies, base station is according to above-mentioned use The bit value of the special high-level signaling in family determines the value of above-mentioned first scrambling code identification, finally, during base station is identified according to multiple above-mentioned ID The first ID marks and the value of above-mentioned first scrambling code identification determine above-mentioned downlink demodulation reference signal sequence, and by above-mentioned downlink solution Reference signal sequence is adjusted to be sent to terminal, solves the orthogonal and quasi-orthogonal CoMP of DMRS in the relevant technologies in R11 systems Technique effect it is bad and under Scenario4 scenes the restricted problem of cell splitting gain, it is achieved thereby that one UE pairs The orthogonal transition effect with interference randomization of dynamic of other UE interference offsets the interference of user, improves the standard of data receiver True rate, and under Scenario4 scenes, improve cell splitting gain.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow of the notification method of downlink demodulation reference signal initial configuration parameter according to embodiments of the present invention Figure；
Fig. 2 is the flow of the method for reseptance of downlink demodulation reference signal initial configuration parameter according to embodiments of the present invention Figure；
Fig. 3 is the structure of the sending device of downlink demodulation reference signal initial configuration parameter according to embodiments of the present invention Block diagram；
Fig. 4 is the sending device of downlink demodulation reference signal initial configuration parameter according to the preferred embodiment of the invention Structure diagram；
Fig. 5 is the structure of the reception device of downlink demodulation reference signal initial configuration parameter according to embodiments of the present invention Block diagram；
Fig. 6 is the reception device of downlink demodulation reference signal initial configuration parameter according to the preferred embodiment of the invention Structure diagram.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be combined with each other.
In R11 systems, since multiple ID marks can be configured, it is therefore desirable to clearly during DMRS sequences are generated It needs to be determined that ID marks and scrambling code identification, proposed in newest 68 meetings and utilize high-rise semi-static signaling and/or object The ID that reason layer dynamic signaling needs to notify UE according to DMRS sequences are generated is identified, and determine scrambling code identification under different situations Value, based on this, an embodiment of the present invention provides a kind of notice of downlink demodulation reference signal initial configuration parameter, method of reseptances And device, it is illustrated below by embodiment.
Present embodiments provide a kind of notification method of downlink demodulation reference signal initial configuration parameter, this method can be with It is realized in base station side, above-mentioned downlink demodulation reference signal initial configuration parameter includes identification (ID) mark and/or scrambler Mark, the flow chart of the notification method of downlink demodulation reference signal initial configuration parameter as shown in Figure 1, this method are included such as Lower step (step S102- step S106)：
Step S102, base station are configured N number of ID for terminal by the special high-level signaling of user and identify, wherein, N is more than 1 Integer, ID identify to generate initialization value necessary to downlink demodulation reference signal (DMRS) sequence；
Step S104, base station notify terminal by high-level signaling, and data stream transmitting is carried out in a manner that the number of plies is more than 1 or 2 When, the first ID marks are determined from N number of ID marks according to high-level signaling and/or determine scrambling code identification nSCIDValue carry out down The initialization of row DMRS sequences and/or, base station judge it is identical with the presence or absence of two or more ID marks in N number of ID mark, according to sentencing Disconnected result is determined to determine the initialization value of downlink DMRS sequences one of in the following ways, if it is judged that being yes, then be used Mode one is determined operation, if it is judged that being no, employing mode two is determined operation：
Mode one：Base station determines the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh,
Mode two：Base station determines the initialization value of downlink DMRS sequences according to the following formula：Formula 2, wherein, nsFor the time slot index in a radio frames, X is high level One of N number of ID marks of configuration, nSCIDFor scrambling code identification, and value is 0 or 1, and base station leads to the mode for selecting initiation parameter The mode for crossing at least one of is notified to terminal：A, acquiescence scrambling code identification nSCID=0, and using in DL grant dynamic signalings NSCID dynamic instructions ID marks X value, scrambling code identification n B, is indicated by nSCID in DL grant dynamic signalingsSCID Value, while using nSCID instruction ID mark X value and C, by descending control information format DCI format New data instructions field NDI instruction ID mark X value, n is indicated by nSCIDSCIDValue；
Step S106, base station will be for determining the scrambling code identification n of the initialization value of downlink DMRS sequencesSCIDWith/ID marks Knowledge is sent to terminal.
By the above method, base station judges whether deposited in the multiple above-mentioned ID marks being configured by the special high-level signaling of user It is identical in more than two above-mentioned ID marks, according to judging result determine the first scrambling code identification value and/or, when base station pass through it is upper When stating the special high-level signaling of user and notifying that above-mentioned terminal is carried out data transmission using the transport layer of the default number of plies, base station is according to above-mentioned The bit value of the special high-level signaling of user determines the value of above-mentioned first scrambling code identification, and finally, base station is identified according to multiple above-mentioned ID In the first ID marks and the value of above-mentioned first scrambling code identification determine above-mentioned downlink demodulation reference signal sequence, and by above-mentioned downlink Demodulated reference signal sequence is sent to terminal, and the DMRS solved in the relevant technologies in R11 systems is orthogonal and quasi-orthogonal CoMP technique effects it is bad and under Scenario4 scenes the restricted problem of cell splitting gain, it is achieved thereby that one The dynamic that UE interferes other UE is orthogonal and the transition effect of interference randomization, offsets the interference of user, improves data receiver Accuracy rate, and under 4 scenes of Scenario, improve cell splitting gain.
In step s 102, base station is configured N number of ID for terminal by the special high-level signaling of user and identifies, if N is equal to 2, In step S104 base station by according to this 2 ID identify whether it is identical determine the initialization value of downlink DMRS sequences, based on this, Present embodiments provide a kind of preferred embodiment, i.e., when the number of ID marks that base station is terminal configuration is 2, base station according to Judging result determines that the initialization value of downlink DMRS sequences includes：It is identical that base station judges that 2 ID are identified whether；If it is judged that It is yes, base station determines the initialization value of downlink DMRS sequences according to mode one；If it is judged that it is no, base station is according to mode two Determine the initialization value of downlink DMRS sequences.Above-mentioned judgment mode is simply easily realized, and when there are two in multiple ID marks When more than ID marks are identical, which falls back to R10 systems from R11 systems and is operated, and has reached the effect of two systems compatibility Fruit.Front is described mode one and mode two, and details are not described herein.
If base station is more than 2 by the special high-level signaling of user for N number of ID that terminal is configured number N identified, base station will Whether there are 2 identical ID to identify the initialization value to determine downlink DMRS sequences according in this N number of ID mark, based on this, this Embodiment provides a kind of preferred embodiment, i.e., when base station is more than 2 for the number of the ID marks of terminal configuration, base station according to Judging result determines that the initialization value of downlink DMRS sequences includes：Base station judges that N number of ID identifies whether that there are 2 identical ID marks Know；If it is judged that it is yes, base station determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, base station is according to side Formula two determines the initialization value of downlink DMRS sequences.
If base station is more than 2 by the special high-level signaling of user for N number of ID that terminal is configured number N identified, base station is also All same can be identified whether according to this N number of ID to determine the initialization value of downlink DMRS sequences, based on this, the present embodiment provides A kind of preferred embodiment, i.e., when base station is more than 2 for the number of the ID marks of terminal configuration, base station is true according to judging result The initialization value for fixing row DMRS sequences includes：Base station judges that N number of ID identifies whether all same；If it is judged that it is yes, base It stands and the initialization value of downlink DMRS sequences is determined according to mode one；Otherwise, base station determines downlink DMRS sequences according to mode two Initialization value.
If base station is more than 2 by the special high-level signaling of user for N number of ID that terminal is configured number N identified, base station is also The initialization value of downlink DMRS sequences can be determined with the presence or absence of different ID marks, be based on according in this N number of ID mark This, present embodiments provides a kind of preferred embodiment, i.e., when base station is more than 2 for the number of the ID marks of terminal configuration, base It stands and determines that the initialization value of downlink DMRS sequences includes according to judging result：Base station judges that N number of ID identifies whether to exist and differs ID mark；If it is judged that it is yes, base station determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, base station The initialization value of downlink DMRS sequences is determined according to mode two.
If base station is more than 2 by the special high-level signaling of user for N number of ID that terminal is configured number N identified, base station is also According in this N number of ID mark the initialization value to determine downlink DMRS sequences, base can be identified with the presence or absence of the identical ID in part In this, present embodiments provide a kind of preferred embodiment, i.e., when base station is more than 2 for the number of the ID marks of terminal configuration, Base station determines that the initialization value of downlink DMRS sequences includes according to judging result：Base station judges that N number of ID identifies whether that there are parts It is identical；If it is judged that it is yes, base station determines the first of downlink DMRS sequences to the ID mark employing modes 1 with identical value Beginning value, identifies other ID, and employing mode 2 determines the initialization value of downlink DMRS sequences.
Base station notifies terminal by high-level signaling in step S104, and carrying out data in a manner that the number of plies is more than 1 or 2 spreads When defeated, determine that the first ID marks carry out the initialization of downlink DMRS sequences from N number of ID marks according to high-level signaling.For upper Process is stated, if high-rise be configured N=2 ID mark, base station notifies terminal being more than 2 with the number of plies by 1 bit high-level signaling Mode is transmitted, then for determining to carry out the parameter value of ID marks used in downlink demodulation reference signal initialization Process present embodiments provides a kind of preferred embodiment, i.e., when the high-level signaling value of 1bit is 0, during 2 ID are identified First the first ID of conduct mark；When the high-level signaling value of 1bit is 1, second during 2 ID are identified as the One ID is identified.
Base station notifies terminal by high-level signaling in step S104, and carrying out data in a manner that the number of plies is more than 1 or 2 spreads When defeated, scrambling code identification n is determined from N number of ID marks according to high-level signalingSCIDCarry out the initialization of downlink DMRS sequences.For The above process, if base station notifies terminal to be transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, then right In the process for determining scrambling code identification parameter value used in progress downlink demodulation reference signal initialization, present embodiments provide A kind of preferred embodiment, i.e., when the high-level signaling value of 1bit is 0, base station is with nSCID=0 carries out downstream modulation with reference to letter The initialization of number sequence；When the high-level signaling value of 1bit is 1, base station is with nSCID=1 carries out downlink demodulation reference signal sequence The initialization of row.Also, each above-mentioned ID marks are integers, and value range can be one of situations below：(0-503)、 (0-511), (0-1023) and (0-1637).
After being determined ID marks and/or the value of scrambling code identification in base station, it is possible to true according to above-mentioned formula 1 or formula 2 Determine downlink demodulation reference signal sequence, wherein, ID marks and the cell ID in formula 1Quite, you can with identify ID Value substitutesValue.
Corresponding to the notification method of above-mentioned downlink demodulation reference signal initial configuration parameter, one kind is present embodiments provided The method of reseptance of downlink demodulation reference signal initial configuration parameter, this method can be applied to end side, above-mentioned downstream modulation Reference signal initial configuration parameter includes scrambling code identification and/or ID is identified, and downlink demodulation reference signal as shown in Figure 2 is initial Change the flow chart of the method for reseptance of configuration parameter, this method comprises the following steps (step S202- step S206)：
Step S202, terminal receive base station and are identified by N number of identification ID that the special high-level signaling of user is configured, In, N is the integer more than 1, and ID identifies the initialization value for generating downlink demodulation reference signal DMRS sequences；
Step S204, terminal receive the high-level signaling that base station is sent, and carrying out data in a manner that the number of plies is more than 1 or 2 spreads When defeated, terminal determines the first ID marks from N number of ID marks according to high-level signaling and/or determines scrambling code identification nSCIDValue Carry out the initialization of downlink DMRS sequences；
And/or terminal judges that N number of ID is identical with the presence or absence of two or more ID marks in identifying, and is determined according to judging result The initialization value of downlink DMRS sequences is determined one of in the following ways, if it is judged that being yes, then employing mode one carries out Operation is determined, if it is judged that being no, employing mode two is determined operation：
Mode one：Terminal determines the initialization value of downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 for scrambling code identification and value Or 1, when number of plies value is less than or equal to 2, referred to by the scrambling code identification instructions field nSCID in downstream grants DL grant dynamic signalings Show nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCIDThe initialization value of=0 determining downlink DMRS sequences, Wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource,
Mode two：Terminal determines the initialization value of downlink DMRS sequences according to the following formula：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and value is 0 or 1, terminal determines the side of the selection initiation parameter of base station notice by way of at least one of Formula：
A, acquiescence scrambling code identification nSCID=0, and the value of nSCID dynamic instructions ID marks X is utilized,
B, scrambling code identification n is indicated by the nSCID in DL grant dynamic signalingsSCIDValue, while referred to using nSCID Show ID mark X value and
C, indicate that ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, N is indicated by nSCIDSCIDValue；
Step S206, terminal generate downlink according to the initialization mode and initiation parameter that downlink DMRS sequences are determined DMRS sequences.
By the above method, terminal judges whether deposited in multiple ID marks that base station is configured by the special high-level signaling of user More than two ID identify it is identical, according to judging result determine scrambling code identification value and/or, when base station passes through the special height of user Layer signals terminal when being carried out data transmission using the transport layer of the default number of plies, and base station is according to the ratio of the special high-level signaling of user Paricular value determines the value of scrambling code identification, and finally, the value of first ID mark and scrambling code identification of the base station in multiple ID marks determines Downlink demodulation reference signal sequence, and downlink demodulation reference signal sequence is sent to terminal, it solves in the relevant technologies in R11 The orthogonal and quasi-orthogonal CoMP technique effects of DMRS in system it is bad and under Scenario4 scenes cell splitting gain by The problem of limitation, it is achieved thereby that the dynamics interfered other UE of a UE are orthogonal and the transition effect of interference randomization, offsets The interference of user improves the accuracy rate of data receiver, and under 4 scenes of Scenario, improves cell splitting gain.
In step S202, terminal receives base station and is identified by N number of identification ID that the special high-level signaling of user is configured, If N is equal to 2, terminal will identify whether identical to determine the initial of downlink DMRS sequences according to this 2 ID in step S204 Change value based on this, present embodiments provides a kind of preferred embodiment, i.e., when the number of the ID marks of base station configuration is 2, eventually End determines that the initialization value of downlink DMRS sequences includes according to judging result：It is identical that terminal judges that 2 ID are identified whether；If sentence Disconnected result is yes, and terminal determines the initialization value of downlink DMRS sequences according to mode one；If it is judged that be it is no, terminal according to Mode two determines the initialization value of downlink DMRS sequences.Above-mentioned judgment mode is simply easily realized, and is deposited when in multiple ID marks When more than two ID marks are identical, which falls back to R10 systems from R11 systems and is operated, and it is simultaneous to have reached two systems The effect of appearance.Front is described mode one and mode two, and details are not described herein.
If terminal receives base station is more than 2 by N number of ID that the special high-level signaling of user is configured number N identified, terminal Whether will there are 2 identical ID to identify the initialization value to determine downlink DMRS sequences according in this N number of ID mark, based on this, A kind of preferred embodiment is present embodiments provided, i.e., when the number of the ID marks of base station configuration is more than 2, terminal is according to judgement As a result determine that the initialization value of downlink DMRS sequences includes：Terminal judges that N number of ID identifies whether that there are 2 identical ID marks； If it is judged that it is yes, terminal determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, terminal is according to mode two Determine the initialization value of downlink DMRS sequences.
If the base station that terminal receives is more than 2 by N number of ID that the special high-level signaling of user is configured number N identified, eventually End determines the initialization value of downlink DMRS sequences by identifying whether all same according to this N number of ID, based on this, the present embodiment provides A kind of preferred embodiment, i.e., when the number of the ID marks of base station configuration is more than 2, terminal determines downlink according to judging result The initialization value of DMRS sequences includes：Terminal judges that N number of ID identifies whether all same；If it is judged that be it is yes, terminal according to Mode one determines the initialization value of downlink DMRS sequences；Otherwise, terminal determines the initialization of downlink DMRS sequences according to mode two Value.
If the base station that terminal receives is more than 2 by N number of ID that the special high-level signaling of user is configured number N identified, base Standing can also identify whether to identify to determine the initialization value of downlink DMRS sequences, base there are different ID according to this N number of ID In this, a kind of preferred embodiment is present embodiments provided, i.e. terminal judges that N number of ID identifies whether that there are different ID marks Know；If it is judged that it is yes, terminal determines the initialization value of downlink DMRS sequences according to mode one；Otherwise, terminal is according to side Formula two determines the initialization value of downlink DMRS sequences.
If the base station that terminal receives is more than 2 by N number of ID that the special high-level signaling of user is configured number N identified, eventually It end can also be according to the initialization identified with the presence or absence of the identical ID in part in this N number of ID mark to determine downlink DMRS sequences Value based on this, present embodiments provides a kind of preferred embodiment, i.e., when base station is more than for the number of the ID marks of terminal configuration When 2, terminal determines that the initialization value of downlink DMRS sequences includes according to judging result：Terminal judges that N number of ID identifies whether exist Part is identical；If it is judged that it is yes, the ID mark employing modes 1 that terminal-pair has identical value determine downlink DMRS sequences Initialization value, other ID are identified, employing mode 2 determines the initialization value of downlink DMRS sequences.
Terminal receives the high-level signaling that base station is sent in step S204, and data flow is carried out in a manner that the number of plies is more than 1 or 2 During transmission, terminal determines that the first ID marks carry out the initialization of downlink DMRS sequences according to high-level signaling from N number of ID marks. For the above process, if base station notifies terminal to be transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, that Determine to carry out the process of the parameter value of ID marks used in downlink demodulation reference signal initialization, this implementation for terminal Example provides a kind of preferred embodiment, i.e., when the high-level signaling value of 1bit is 0, first work during 2 ID are identified It is identified for the first ID；When the high-level signaling value of 1bit is 1, second during 2 ID are identified identifies as the first ID.
Terminal receives the high-level signaling that base station is sent in step S204, and data flow is carried out in a manner that the number of plies is more than 1 or 2 During transmission, terminal determines scrambling code identification n according to high-level signaling from N number of ID marksSCIDCarry out the initial of downlink DMRS sequences Change.For the above process, if base station notifies terminal to be transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, The process of the parameter value of scrambling code identification used in progress downlink demodulation reference signal initialization is so determined for terminal, this Embodiment provides a kind of preferred embodiment, i.e., when the high-level signaling value of 1bit is 0, terminal is with nSCID=0 carries out down The initialization of row demodulated reference signal sequence；When the high-level signaling value of 1bit is 1, base station side nSCID=1 carries out downlink solution Adjust the initialization of reference signal sequence.Also, each above-mentioned ID marks are integers, value range can be situations below it One：(0-503), (0-511), (0-1023) and (0-1637).
The realization process of above-described embodiment is described in detail with reference to preferred embodiment and attached drawing.
Embodiment one
Base station is configured multiple ID for terminal by the special high-level signaling of user and identifies, wherein, under ID marks are for generating Row demodulated reference signal sequence, then, base station judge to identify identical, root with the presence or absence of more than two above-mentioned ID in multiple ID marks It is judged that result determines scrambling code identification nSCIDValue.For the above process, the present embodiment is marked using 2 ID that base station is configured as terminal It is illustrated for knowledge.
It is assumed that UE1 is user's (i.e. terminal) of a R11 system, 2 ID marks are configured (assuming that being respectively to UE1 in base station X0, X1), if two ID marks of configuration are identical, when base station generates DMRS sequences, used scrambling code identification nSCIDValue The n of DCI Format in the DL_Grant that can be configured with base station in the relevant technologiesSCIDTake identical value.If two of configuration ID marks differ, then during base station generation DMRS sequences, used scrambling code identification nSCIDValue be set as 0.
After UE1 receives multiple ID marks of the base station by the special high-level signaling configuration of user, UE1 judges multiple ID marks In it is identical with the presence or absence of more than two above-mentioned ID marks, scrambling code identification n is determined according to judging resultSCIDValue.For above-mentioned mistake Journey, the present embodiment are illustrated so that 2 ID marks are configured for terminal in base station as an example.UE1 receives 2 ID marks of base station configuration (assuming that being X0, X1 respectively), if two ID marks of configuration are identical, when UE1 demodulates DMRS sequences, used scrambler mark Know nSCIDValue can in the relevant technologies base station be configured DL_Grant in DCI Format nSCIDTake identical value.If Two ID marks of configuration differ, then during terminal demodulation DMRS sequences, used scrambling code identification nSCIDValue be set as 0.
Embodiment two
Base station is configured multiple ID for terminal by the special high-level signaling of user and identifies, wherein, under ID marks are for generating Row demodulated reference signal sequence, then, base station judge to identify identical, root with the presence or absence of more than two above-mentioned ID in multiple ID marks It is judged that result determines scrambling code identification nSCIDValue.For the above process, the present embodiment is configured 3 ID as terminal using base station and identifies For illustrate.
3 ID marks are configured to terminal in base station, if three ID marks of configuration are identical, base station generation DMRS sequences When, used scrambling code identification nSCIDThe DL_Grant that can be configured with base station in the relevant technologies of value in DCI Format nSCIDTake identical value.It is used to disturb when base station generates DMRS sequences if at least two ID marks of configuration differ Code mark nSCIDValue be set as 0.
After UE1 receives multiple ID marks of the base station by the special high-level signaling configuration of user, UE1 judges multiple ID marks In it is identical with the presence or absence of more than two above-mentioned ID marks, scrambling code identification n is determined according to judging resultSCIDValue.For above-mentioned mistake Journey, the present embodiment are illustrated so that 3 ID marks are configured for terminal in base station as an example.Terminal receives 3 ID marks of base station configuration, If three ID marks of configuration are identical, when base station generates DMRS sequences, used scrambling code identification nSCIDValue can be with The n of DCI Format in the DL_Grant that base station is configured in the relevant technologiesSCIDTake identical value.If at least two ID of configuration Mark differs, then during terminal demodulation DMRS sequences, used scrambling code identification nSCIDValue be set as 0.
Embodiment three
After UE1 receives multiple ID marks of the base station by the special high-level signaling configuration of user, UE1 judges multiple ID marks In it is identical with the presence or absence of more than two above-mentioned ID marks, scrambling code identification n is determined according to judging resultSCIDValue.For above-mentioned mistake Journey, the present embodiment are illustrated so that 4 ID marks are configured for terminal in base station as an example.
4 ID marks are configured to terminal in base station, if two ID marks of configuration are identical, base station generation DMRS sequences When, used scrambling code identification nSCIDThe DL_Grant that can be configured with base station in the relevant technologies of value in DCI Format nSCIDTake identical value.If two ID marks of configuration differ, when base station generates DMRS sequences, used scrambler mark Know nSCIDValue be set as 0.
After UE1 receives multiple ID marks of the base station by the special high-level signaling configuration of user, UE1 judges multiple ID marks In it is identical with the presence or absence of more than two above-mentioned ID marks, scrambling code identification n is determined according to judging resultSCIDValue.For above-mentioned mistake Journey, the present embodiment are illustrated so that 4 ID marks are configured for terminal in base station as an example.Terminal receives 4 ID marks of base station configuration, If four ID marks of configuration are identical, when base station generates DMRS sequences, used scrambling code identification nSCIDValue can be with The n of DCI Format in the DL_Grant that base station is configured in the relevant technologiesSCIDTake identical value.If at least two ID of configuration Mark differs, then during terminal demodulation DMRS sequences, used scrambling code identification nSCIDValue be set as 0.
Example IV
The bit value of the special high-level signaling of user is the layer of the default number of plies of 1, terminal used by base station notifies terminal Numerical value be more than 2, and base station configuration ID mark number be 2 when, base station is determined according to the bit value of the special high-level signaling of user ID is identified.The present embodiment illustrates the above process.
Base station notifies terminal when transport layer of the number of plies more than 2 layers transmits data, to be used in base station by 1 bit high-level signaling In marker numerical value be 2 mark indication signaling be 0 in the case of, base station using configuration 2 ID mark in first (i.e. Identified using first ID of signaling generation) generate and send DMRS sequences.The mark that number of plies value is 2 is used to indicate in base station In the case that indication signaling is 1, base station is using second in 2 ID marks of configuration (i.e. using second of signaling generation ID is identified) generate and send DMRS sequences.
For end side, terminal receives the notice that base station is sent by 1 bit high-level signaling, the notice For terminal is notified to transmit data in transport layer of the number of plies more than 2 layers, the mark instruction letter that number of plies value is 2 is used to indicate in base station It enables in the case of being 0, terminal utilizes first (being identified using first ID of signaling generation) in 2 ID marks of configuration To demodulate DMRS sequences.It is used to indicate in base station in the case that the mark indication signaling that number of plies value is 2 is 1, terminal utilizes configuration 2 ID marks in second (being identified using second ID of signaling generation) demodulate DMRS sequences.
Embodiment five
The bit value of the special high-level signaling of user is the layer of the default number of plies of 2, terminal used by base station notifies terminal Numerical value be more than 2, and base station configuration ID mark number be 4 when, base station is determined according to the bit value of the special high-level signaling of user ID is identified.The present embodiment illustrates the above process.
Base station notifies terminal when transport layer of the number of plies more than 2 layers transmits data, to be used in base station by 2 bit high-level signalings In marker numerical value be 2 mark indication signaling be 00 in the case of, base station using configuration 4 ID mark in first (being identified using first ID of signaling generation) generates and sends DMRS sequences；It is 2 that number of plies value is used to indicate in base station Indication signaling is identified as in the case of 01, base station is using second in 4 ID marks of configuration (i.e. using the of signaling generation Two ID mark) generate and send DMRS sequences；The feelings that mark indication signaling that number of plies value is 2 is 10 are used to indicate in base station Under condition, base station using the third (being identified using the third ID of signaling generation) in 4 ID marks of configuration come generate with Send DMRS sequences；It is used to indicate in base station in the case that the mark indication signaling that number of plies value is 2 is 11, base station utilizes configuration The 4th (being identified using the 4th ID of signaling generation) in 4 ID mark generates and sends DMRS sequences.
For end side, terminal receives the notice that base station is sent by 2 bit high-level signalings, the notice For terminal is notified to transmit data in transport layer of the number of plies more than 2 layers, the mark instruction letter that number of plies value is 2 is used to indicate in base station It enables in the case of being 00, terminal (is marked using first in 4 ID marks of configuration using first ID of signaling generation Know) demodulate DMRS sequences；It is used to indicate in base station in the case that the mark indication signaling that number of plies value is 2 is 01, terminal utilizes Second (being identified using second ID of signaling generation) in 4 ID marks of configuration demodulates DMRS sequences；In base station It is used to indicate in the case that the mark indication signaling that number of plies value is 2 is 10, terminal utilizes the third in 4 ID marks of configuration (i.e. using the third ID marks of signaling generation) demodulates DMRS sequences；The mark that number of plies value is 2 is used to indicate in base station to refer to In the case of showing that signaling is 11, terminal utilizes the 4th (the 4th ID generated using signaling in 4 ID marks of configuration Mark) demodulate DMRS sequences.
Embodiment six
The bit value of the special high-level signaling of user is the layer of the default number of plies of 1, terminal used by base station notifies terminal Numerical value be more than 2, and base station configuration ID mark number be 2 when, base station is determined according to the bit value of the special high-level signaling of user The value of first scrambling code identification is the value of the second scrambling code identification, and the present embodiment illustrates the above process.
Base station notifies terminal to transmit data in transport layer of the number of plies more than 2 layers by 1 bit high-level signaling, is being used to indicate In the case that the mark indication signaling that number of plies value is 2 is 0, base station is by scrambling code identification nSCIDValue be set as 0, to generate and send out Send DMRS sequences；In the case where being used to indicate the mark indication signaling that number of plies value is 2 and being 1, base station is by scrambling code identification nSCID's Value is set as 1, to generate and send DMRS sequences.
For end side, terminal receives the notice that base station is sent by 2 bit high-level signalings, the notice For terminal is notified to transmit data in transport layer of the number of plies more than 2 layers.It is being used to indicate the mark indication signaling that number of plies value is 2 In the case of 0, terminal is by scrambling code identification nSCIDValue be set as 0, to generate and send DMRS sequences；It is being used to indicate the number of plies In the case that the mark indication signaling being worth for 2 is 1, terminal is by scrambling code identification nSCIDValue be set as 1, to generate and send DMRS sequences.
Corresponding to the notification method of above-mentioned downlink demodulation reference signal initial configuration parameter, one kind is present embodiments provided The notice device of downlink demodulation reference signal initial configuration parameter, the device can be applied in base station side, be used to implement above-mentioned Embodiment, above-mentioned downlink demodulation reference signal configuration parameter include ID marks and/or scrambling code identification, and Fig. 3 is according to of the invention real The structure diagram of the notice device of the downlink demodulation reference signal initial configuration parameter of example is applied, the structure is said below Bright, which includes：
N number of ID marks are configured for terminal for passing through the special high-level signaling of user in configuration module 10, wherein, N is more than 1 Integer, ID marks are for generating initialization value necessary to downlink demodulation reference signal DMRS sequences；
First determining module 20, is connected to configuration module 10, for judging in N number of ID marks with the presence or absence of two or more ID It identifies identical, is determined to determine the initialization mode of downlink DMRS sequences using one of unit identified below according to judging result, such as Fruit judging result is yes, then the first determination unit is determined operation, if it is judged that be it is no, using the second determination unit into Row determines operation；And/or second determining module 30, configuration module 10 is connected to, for notifying terminal by high-level signaling, with When mode of the number of plies more than 1 or 2 carries out data stream transmitting, determine that the first ID is identified from N number of ID marks according to high-level signaling And/or determine scrambling code identification nSCIDValue carry out downlink DMRS sequences initialization；
Notification module 40 is connected to the first determining module 20 or the second determining module 30, for downlink DMRS will to be determined The scrambling code identification n of the initialization value of sequenceSCIDTerminal is sent to the/the one ID marks.In Fig. 3 is connected to notification module 40 It is introduced for one determining module 20 and the second determining module 30.
By above device, the first determining module 20 judges the multiple above-mentioned ID marks being configured by the special high-level signaling of user It is identical with the presence or absence of more than two above-mentioned ID marks in knowledge, the initialization mode of downlink DMRS sequences is determined according to judging result, Second determining module 30 notifies terminal by high-level signaling, when carrying out data stream transmitting in a manner that the number of plies is more than 1 or 2, according to High-level signaling determines the first ID marks from N number of ID marks and/or determines scrambling code identification nSCIDValue carry out downlink DMRS The initialization of sequence, finally, notification module 40 will determine the scrambling code identification n of the initialization value of downlink DMRS sequencesSCIDWith/the One ID marks are sent to terminal, solve the orthogonal and quasi-orthogonal CoMP technologies effects of DMRS in the relevant technologies in R11 systems Fruit it is bad and under Scenario4 scenes the restricted problem of cell splitting gain, it is achieved thereby that a UE is to other UE The orthogonal transition effect with interference randomization of dynamic of interference offsets the interference of user, improves the accuracy rate of data receiver, and And under Scenario4 scenes, cell splitting gain is improved.
Fig. 4 is the notice device of downlink demodulation reference signal initial configuration parameter according to the preferred embodiment of the invention Structure diagram, other than including the modules in Fig. 3, above-mentioned first determining module 20 further includes first and determines above device 22 and second determination unit 24 of unit, is below introduced the structure.
First determination unit 22, for determining the initialization value of downlink DMRS sequences according to the following formula：Formula 1, wherein, nsIt is indexed for the time slot in a radio frames,For Cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when number of plies value is less than or equal to 2, is moved by downstream grants DL grant Scrambling code identification instructions field nSCID instructions n in state signalingSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID The initialization value of=0 determining downlink DMRS sequences, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource Mesh；
Second determination unit 24 is connected to the first determination unit 22, for determining downlink DMRS sequences according to the following formula Initialization value：Formula 2, wherein, nsFor the time slot rope in a radio frames Draw, one of the N number of ID marks of X for high-rise configuration, nSCIDFor scrambling code identification, and value is 0 or 1, will select initiation parameter Mode is notified by way of at least one of to terminal：A, acquiescence scrambling code identification nSCID=0, and believed using nSCID dynamics The value of nSCID dynamic instructions ID marks X in order, B, indicates scrambling code identification by the nSCID in DL grant dynamic signalings nSCIDValue, while using nSCID instruction ID marks X value and C, pass through descending control information format DCI The value of new data instructions field NDI instruction ID marks X in format, n is indicated by nSCIDSCIDValue.
Wherein, each above-mentioned ID marks are integers, and value range can be one of situations below：(0-503)、(0- 511), (0-1023) and (0-1637).
How downlink demodulation reference signal initial configuration parameter is determined for base station, before have been carried out retouching in detail It states, details are not described herein.
Corresponding to the method for reseptance of above-mentioned downlink demodulation reference signal initial configuration parameter, one kind is present embodiments provided The reception device of downlink demodulation reference signal initial configuration parameter, the device can be applied in end side, be used to implement above-mentioned Embodiment, above-mentioned downlink demodulation reference signal initial configuration parameter includes scrambling code identification and/or identification ID is identified, Fig. 5 The structure diagram of the reception device of downlink demodulation reference signal initial configuration parameter according to embodiments of the present invention, below it is right The structure illustrates, which includes：
Receiving module 50 is identified for receiving base station by N number of identification ID that the special high-level signaling of user is configured, In, N is the integer more than 1, and ID identifies the initialization value for generating downlink demodulation reference signal DMRS sequences；
Third determining module 60, it is identical with the presence or absence of two or more ID marks in N number of ID marks for judging, according to judgement As a result it determines the initialization value using the determining downlink DMRS sequences of one of unit identified below, if it is judged that being yes, then adopts Operation is determined with third determination unit, if it is judged that being no, operation is determined using the 4th determination unit：With/ Or, the 4th determining module 70, for receiving the high-level signaling of base station transmission, in a manner that the number of plies is more than 1 or 2 carrying out data spreads When defeated, the first ID marks are determined from N number of ID marks according to high-level signaling and/or determine scrambling code identification nSCIDValue carry out The initialization of downlink DMRS sequences；
Generation module 80, for the initialization mode according to the downlink DMRS sequences determined and initiation parameter generation Downlink DMRS sequences.
By above device, it is identical that third determining module 60 judges that N number of ID is identified in identifying with the presence or absence of two or more ID, The initialization value of downlink DMRS sequences is determined according to judging result, the 4th determining module 70 receives the high-level signaling that base station is sent, When carrying out data stream transmitting in a manner that the number of plies is more than 1 or 2, determine that the first ID is marked from N number of ID marks according to high-level signaling Know and/or determine scrambling code identification nSCIDValue carry out downlink DMRS sequences initialization, finally, generation module 80 according to determine The initialization mode of downlink DMRS sequences and initiation parameter generation downlink DMRS sequences, solve in the relevant technologies The orthogonal and quasi-orthogonal CoMP technique effects of DMRS in R11 systems are bad and cell splitting increases under Scenario4 scenes The restricted problem of benefit, it is achieved thereby that the dynamics interfered other UE of a UE are orthogonal and the transition effect of interference randomization, The interference of user is offset, improves the accuracy rate of data receiver, and under Scenario4 scenes, improves cell splitting increasing Benefit.
Fig. 6 is the reception device of downlink demodulation reference signal initial configuration parameter according to the preferred embodiment of the invention Structure diagram, as shown in fig. 6, above device, other than including the modules in Fig. 5, third determining module 60 can also wrap It includes：62 and the 4th determination unit 64 of third determination unit, below illustrates the structure.
Third determination unit 62, for determining the initialization value of downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 for scrambling code identification and value Or 1, when number of plies value is less than or equal to 2, referred to by the scrambling code identification instructions field nSCID in downstream grants DL grant dynamic signalings Show nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCIDThe initialization value of=0 determining downlink DMRS sequences, Wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource；
4th determination unit 64 is connected to third determination unit 62, for determining downlink DMRS sequences according to the following formula Initialization value：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and the mode of selection initiation parameter that value is notified for 0 or 1 receiving base station by way of at least one of：
A, acquiescence scrambling code identification nSCID=0, and the value of nSCID dynamic instructions ID marks X is utilized,
B, scrambling code identification n is indicated by the nSCID in DL grant dynamic signalingsSCIDValue, while referred to using nSCID Show ID mark X value and
C, indicate that ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, N is indicated by nSCIDSCIDValue.
Each above-mentioned ID marks are integers, and value range can be one of situations below：(0-503)、(0-511)、 (0-1023) and (0-1637).
How downlink demodulation reference signal initial configuration parameter is determined for terminal, before have been carried out retouching in detail It states, details are not described herein.
As can be seen from the above description, the present invention can ensure under the premise of existing DCI-Format is not changed CoMP technologies can also reach further for orthogonal and standard orthogonal (interference randomization) purpose in Scenario4 scenes Obtain the purpose of cell splitting.The signaling of base station notice terminal in the present invention is used to refer to DMRS sequences to terminal, thus So that terminal generates DMRS sequences according to identical ID ident values and scrambling code identification, so as to for subsequently according to the DMRS moneys received The DMRS sequences related operation of source position and generation completes the estimation to channel, using channel estimation results for DMRS come It completes to carry out basis for channel estimation and the data demodulation detection of data area.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed in the storage device by computing device, and in some cases, it can be to be different from shown in sequence herein performs The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (18)

1. a kind of notification method of downlink demodulation reference signal initial configuration parameter, applied to base station, wherein, the downlink solution Reference signal initial configuration parameter is adjusted to include identification ID marks and/or scrambling code identification, which is characterized in that including：
It is identified Step 1: N number of ID is configured for terminal by the special high-level signaling of user in base station, wherein, N is whole more than 1 Number, the ID identify to generate initialization value necessary to downlink demodulation reference signal DMRS sequences；
Step 2: the base station notifies the terminal by high-level signaling, carrying out data in a manner that the number of plies is more than 1 or 2 spreads When defeated, the first ID marks are determined from N number of ID marks according to the high-level signaling and/or determine scrambling code identification nSCID Value carry out the initialization of the downlink DMRS sequences；
Or, the base station judges that N number of ID is identical with the presence or absence of more than two ID marks in identifying, according to judging result Determine to determine the initialization value of downlink DMRS sequences one of in the following ways, if it is judged that being yes, then employing mode one Operation is determined, if it is judged that being no, employing mode two is determined operation：
Mode one：The base station determines the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, When number of plies value is less than or equal to 2, institute is indicated by the scrambling code identification instructions field nSCID in downstream grants DL grant dynamic signalings State nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID=0 determines the initialization of the downlink DMRS sequences Value, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource,
Mode two：The base station determines the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and value be 0 or 1, the base station by the mode for selecting initiation parameter notified by way of at least one of to The terminal：
A, give tacit consent to the scrambling code identification nSCID=0, and utilize the nSCID dynamic instructions in the DL grant dynamic signalings The value of the ID marks X,
B, the scrambling code identification n is indicated by the nSCID in the DL grant dynamic signalingsSCIDValue, utilize simultaneously The nSCID indicate the ID marks X value and
C, indicate that the ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, The n is indicated by the nSCIDSCIDValue；
Step 3: the base station will be for determining the scrambling code identification n of the initialization value of the downlink DMRS sequencesSCIDWith/ Or the ID marks are sent to the terminal；
The base station notifies the terminal when carrying out data stream transmitting in a manner of being more than 1 or 2 by the number of plies high-level signaling, root Determine that the first ID marks include from N number of ID marks according to the high-level signaling：When described high-rise N=2 ID mark of configuration During knowledge, the base station notifies the terminal when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, Determine to carry out the parameter value of ID marks used in downlink demodulation reference signal initialization；When the high-level signaling value of 1bit is When 0, identified using first in 2 ID marks as the first ID；When the high-level signaling value of 1bit is 1, by 2 institutes State second the first ID of conduct marks in ID marks；
The base station notifies the terminal when carrying out data stream transmitting in a manner of being more than 1 or 2 by the number of plies high-level signaling, root Scrambling code identification n used in downlink demodulation reference signal initialization is determined according to the high-level signalingSCIDParameter value include：Institute It states base station and the terminal is notified when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, determine to carry out Scrambling code identification parameter value used in downlink demodulation reference signal initialization；It is described when the high-level signaling value of 1bit is 0 Base station is with nSCID=0 carries out the initialization of downlink demodulation reference signal sequence；It is described when the high-level signaling value of 1bit is 1 Base station is with nSCID=1 carries out the initialization of downlink demodulation reference signal sequence.
2. according to the method described in claim 1, it is characterized in that,
When the number for the ID marks that the base station is the terminal configuration is 2, the base station is determined according to judging result The initialization value of downlink DMRS sequences includes：
It is identical that the base station judges that 2 ID are identified whether；
If it is judged that it is yes, the base station determines the initialization value of the downlink DMRS sequences according to mode one；
If it is judged that it is no, the base station determines the initialization value of the downlink DMRS sequences according to mode two.
3. according to the method described in claim 1, it is characterized in that,
When the base station is more than 2 for the number of the ID marks of terminal configuration, the base station is true according to judging result The initialization value for fixing row DMRS sequences includes：
The base station judges that N number of ID identifies whether that there are 2 identical ID marks；
If it is judged that it is yes, the base station determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the base station determines the initialization value of the downlink DMRS sequences according to mode two.
4. according to the method described in claim 1, it is characterized in that,
When the base station is more than 2 for the number of the ID marks of terminal configuration, the base station is true according to judging result The initialization value for fixing row DMRS sequences includes：
The base station judges that N number of ID identifies whether all same；
If it is judged that it is yes, the base station determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the base station determines the initialization value of the downlink DMRS sequences according to mode two.
5. according to the method described in claim 1, it is characterized in that, when ID mark of the base station for terminal configuration Number be more than 2 when, the base station determines that the initialization value of downlink DMRS sequences includes according to judging result：
The base station judges that N number of ID identifies whether that there are the different ID to identify；
If it is judged that it is yes, the base station determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the base station determines the initialization value of the downlink DMRS sequences according to mode two.
6. according to the method described in claim 1, it is characterized in that,
When the base station is more than 2 for the number of the ID marks of terminal configuration, the base station is true according to judging result The initialization value for fixing row DMRS sequences includes：
It is identical there are part that the base station judges that N number of ID is identified whether；
If it is judged that it is yes, the base station determines the downlink DMRS to the ID mark employing modes 1 with identical value The initialization value of sequence, identifies other ID, and employing mode 2 determines the initialization value of the downlink DMRS sequences.
7. method according to any one of claim 1 to 6, which is characterized in that including：The value of each ID marks Range is one of the following：
(0-503), (0-511), (0-1023) and (0-1637).
8. a kind of method of reseptance of downlink demodulation reference signal initial configuration parameter, applied to terminal, wherein, the downlink solution Reference signal initial configuration parameter is adjusted to include scrambling code identification and/or identification ID marks, which is characterized in that including：
It is identified Step 1: terminal receives base station by N number of identification ID that the special high-level signaling of user is configured, wherein, N is big In 1 integer, the ID identifies the initialization value for generating downlink demodulation reference signal DMRS sequences；
Step 2: the terminal receives the high-level signaling that the base station is sent, data flow is carried out in a manner that the number of plies is more than 1 or 2 During transmission, the terminal determines the first ID marks and/or determines scrambler mark in being identified according to high-level signaling from N number of ID Know nSCIDValue carry out the initialization of the downlink DMRS sequences；
Or, the terminal judges that N number of ID is identical with the presence or absence of more than two ID marks in identifying, according to judging result Determine to determine the initialization value of downlink DMRS sequences one of in the following ways, if it is judged that being yes, then employing mode one Operation is determined, if it is judged that being no, employing mode two is determined operation：
Mode one：The terminal determines the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when When number of plies value is less than or equal to 2, by described in the scrambling code identification instructions field nSCID instructions in downstream grants DL grant dynamic signalings nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID=0 determines the initialization of the downlink DMRS sequences Value, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource,
Mode two：The terminal determines the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and value is 0 or 1, the terminal determines the selection initialization of the base station notice by way of at least one of The mode of parameter：
A, give tacit consent to the scrambling code identification nSCID=0, and the value of ID marks X described in the nSCID dynamic instructions is utilized,
B, the scrambling code identification n is indicated by the nSCID in the DL grant dynamic signalingsSCIDValue, utilize simultaneously The nSCID indicate the ID marks X value and
C, indicate that the ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, The n is indicated by the nSCIDSCIDValue；
Step 3: the terminal generates institute according to the initialization mode and initiation parameter that the downlink DMRS sequences are determined State downlink DMRS sequences；
What the terminal received that the base station sends notifies the terminal to carry out data in a manner that the number of plies is more than 1 or 2 and spread During defeated high-level signaling, the terminal determines that the first ID marks include in being identified according to the high-level signaling from N number of ID： When the high-rise N=2 ID mark of configuration, the base station notifies the terminal with the layer by 1 bit high-level signaling When mode of the number more than 2 is transmitted, the terminal determines to carry out ID marks used in downlink demodulation reference signal initialization Parameter value；When the high-level signaling value of 1bit is 0, identified using first in 2 ID marks as the first ID； When the high-level signaling value of 1bit is 1, identified using second in 2 ID marks as the first ID；
What the terminal received that the base station sends notifies the terminal to carry out data in a manner that the number of plies is more than 1 or 2 and spread During defeated high-level signaling, scrambling code identification n used in downlink demodulation reference signal initialization is determinedSCIDParameter value include： The base station notifies the terminal when being transmitted in a manner of being more than 2 by the number of plies 1 bit high-level signaling, the end End determines to carry out scrambling code identification parameter value used in downlink demodulation reference signal initialization；When the high-level signaling value of 1bit When being 0, the terminal is with nSCID=0 carries out the initialization of downlink demodulation reference signal sequence；When the high-level signaling value of 1bit When being 1, the base station side nSCID=1 carries out the initialization of downlink demodulation reference signal sequence.
9. according to the method described in claim 8, it is characterized in that,
When the number of the ID marks of base station configuration is 2, the terminal determines downlink DMRS sequences according to judging result The initialization value of row includes：
It is identical that the terminal judges that 2 ID are identified whether；
If it is judged that it is yes, the terminal determines the initialization value of the downlink DMRS sequences according to mode one；
If it is judged that it is no, the terminal determines the initialization value of the downlink DMRS sequences according to mode two.
10. according to the method described in claim 8, it is characterized in that,
When the number of the ID marks of base station configuration is more than 2, the terminal determines downlink DMRS according to judging result The initialization value of sequence includes：
The terminal judges that N number of ID identifies whether that there are 2 identical ID marks；
If it is judged that it is yes, the terminal determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the terminal determines the initialization value of the downlink DMRS sequences according to mode two.
11. according to the method described in claim 8, it is characterized in that,
When the number of the ID marks of base station configuration is more than 2, the terminal determines downlink DMRS according to judging result The initialization value of sequence includes：
The terminal judges that N number of ID identifies whether all same；
If it is judged that it is yes, the terminal determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the terminal determines the initialization value of the downlink DMRS sequences according to mode two.
12. according to the method described in claim 8, it is characterized in that, when ID mark of the base station for terminal configuration When the number of knowledge is more than 2, the terminal determines that the initialization value of downlink DMRS sequences includes according to judging result：
The terminal judges that N number of ID identifies whether that there are the different ID to identify；
If it is judged that it is yes, the terminal determines the initialization value of the downlink DMRS sequences according to mode one；
Otherwise, the terminal determines the initialization value of the downlink DMRS sequences according to mode two.
13. according to the method described in claim 8, it is characterized in that,
When the base station is more than 2 for the number of the ID marks of terminal configuration, the terminal is true according to judging result The initialization value for fixing row DMRS sequences includes：
It is identical there are part that the terminal judges that N number of ID is identified whether；
If it is judged that it is yes, the ID mark employing modes 1 that the terminal-pair has identical value determine the downlink DMRS The initialization value of sequence, identifies other ID, and employing mode 2 determines the initialization value of the downlink DMRS sequences.
14. method according to one of claims 8 to 13, which is characterized in that including：Each ID marks take Value range is one of the following：
(0-503), (0-511), (0-1023) and (0-1637).
15. a kind of notice device of downlink demodulation reference signal initial configuration parameter, positioned at base station, wherein, the downlink solution Reference signal configuration parameter is adjusted to include identification ID marks and/or scrambling code identification, which is characterized in that including：
Configuration module, for passing through the special high-level signaling of user as the N number of ID marks of terminal configuration, wherein, N is more than 1 Integer, the ID identify to generate initialization value necessary to downlink demodulation reference signal DMRS sequences；
First determining module, it is identical with the presence or absence of more than two ID marks in N number of ID mark for judging, according to sentencing Disconnected result determines to determine the initialization mode of downlink DMRS sequences using one of unit identified below, if it is judged that be it is yes, Then the first determination unit is determined operation, if it is judged that being no, operation is determined using the second determination unit；
And/or
Second determining module notifies the terminal for passing through high-level signaling, and data flow is carried out in a manner that the number of plies is more than 1 or 2 During transmission, the first ID marks are determined from N number of ID marks according to the high-level signaling and/or determine scrambling code identification nSCIDValue carry out the initialization of the downlink DMRS sequences；
Notification module, for the scrambling code identification n of the initialization value of the downlink DMRS sequences will to be determinedSCIDIt is and/or described First ID marks are sent to the terminal；
Wherein, first determination unit, for determining the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, when When number of plies value is less than or equal to 2, by described in the scrambling code identification instructions field nSCID instructions in downstream grants DL grant dynamic signalings nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID=0 determines the initialization of the downlink DMRS sequences Value, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource；
Second determination unit, for determining the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and value is 0 or 1, and the mode for selecting initiation parameter is notified by way of at least one of to the terminal：
A, give tacit consent to the scrambling code identification nSCID=0, and using described in the nSCID dynamic instructions in the nSCID dynamic signalings ID identifies the value of X,
B, the scrambling code identification n is indicated by the nSCID in the DL grant dynamic signalingsSCIDValue, utilize simultaneously The nSCID indicate the ID marks X value and
C, indicate that the ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, The n is indicated by the nSCIDSCIDValue.
16. device according to claim 15, which is characterized in that including：The value range of each ID marks be with It is one of lower：
(0-503), (0-511), (0-1023) and (0-1637).
17. a kind of reception device of downlink demodulation reference signal initial configuration parameter, positioned at terminal, wherein, the downlink solution Reference signal initial configuration parameter is adjusted to include scrambling code identification and/or identification ID marks, which is characterized in that including：
Receiving module is identified for receiving base station by N number of identification ID that the special high-level signaling of user is configured, wherein, N is Integer more than 1, the ID identify the initialization value for generating downlink demodulation reference signal DMRS sequences；
Third determining module, it is identical with the presence or absence of more than two ID marks in N number of ID mark for judging, according to sentencing Disconnected result determines to determine the initialization value of downlink DMRS sequences using one of unit identified below, if it is judged that be it is yes, then Operation is determined using third determination unit, if it is judged that being no, operation is determined using the 4th determination unit：
And/or the 4th determining module, for receiving the high-level signaling that the base station is sent, in a manner that the number of plies is more than 1 or 2 into During row data stream transmitting, the first ID marks are determined from N number of ID marks according to the high-level signaling and/or determine to disturb Code mark nSCIDValue carry out the initialization of the downlink DMRS sequences；
Generation module, for the initialization mode according to the downlink DMRS sequences determined and initiation parameter generation institute State downlink DMRS sequences；
Wherein, the third determination unit, for determining the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsIt is indexed for the time slot in a radio frames,For cell ID, nSCIDIt is 0 or 1 for scrambling code identification and value, When number of plies value is less than or equal to 2, institute is indicated by the scrambling code identification instructions field nSCID in downstream grants DL grant dynamic signalings State nSCIDValue for 0 or 1, it is fixed according to n when number of plies value is more than 2SCID=0 determines the initialization of the downlink DMRS sequences Value, wherein, number of the number of plies for the data flow of parallel transmission on identical running time-frequency resource；
4th determination unit, for determining the initialization value of the downlink DMRS sequences according to the following formula：
Wherein, nsFor the time slot index in a radio frames, one of N number of ID marks of the X for high-rise configuration, nSCIDFor scrambler Mark, and the side of selection initiation parameter that value receives the base station notice for 0 or 1 by way of at least one of Formula：
A, give tacit consent to the scrambling code identification nSCID=0, and using the value of ID marks X described in the nSCID dynamic instructions, B, pass through The nSCID in the DL grant dynamic signalings indicates the scrambling code identification nSCIDValue, while utilize the nSCID Indicate ID mark X value and
C, indicate that the ID identifies the value of X by the new data instructions field NDI in descending control information format DCI format, The n is indicated by the nSCIDSCIDValue.
18. device according to claim 17, which is characterized in that including：The value range of each ID marks be with It is one of lower：
(0-503), (0-511), (0-1023) and (0-1637).
CN201210072659.9A 2012-03-19 2012-03-19 Downlink demodulation reference signal initial configuration parameter notice, method of reseptance and device Expired - Fee Related CN103326758B (en)

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