CN108809574A - CSI-RS configuration methods and device, computer readable storage medium, base station, user equipment - Google Patents

CSI-RS configuration methods and device, computer readable storage medium, base station, user equipment Download PDF

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Publication number
CN108809574A
CN108809574A CN201710312333.1A CN201710312333A CN108809574A CN 108809574 A CN108809574 A CN 108809574A CN 201710312333 A CN201710312333 A CN 201710312333A CN 108809574 A CN108809574 A CN 108809574A
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China
Prior art keywords
csi
synchronizing signal
index information
signal block
user equipment
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CN201710312333.1A
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Chinese (zh)
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CN108809574B (en
Inventor
周化雨
贾亚男
汪绍飞
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2671—Time domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A kind of CSI-RS configuration methods and device, computer readable storage medium, base station, user equipment, the described method comprises the following steps：Determine the CSI-RS of cell level；The index information that synchronizing signal block is sent to user equipment, so that the user equipment determines the time-frequency location of the CSI-RS based on the index information；Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have predefined correspondence.The present invention program makes base station send the time-frequency location that family equipment can be used to determine CSI-RS for the information of a small amount of bit number, to realize the high-efficient disposition of CSI-RS.

Description

CSI-RS configuration methods and device, computer readable storage medium, base station, user Equipment
Technical field
The present invention relates to field of communication technology, especially a kind of CSI-RS configuration methods and device, computer-readable storage Medium, base station, user equipment.
Background technology
In 5G systems, synchronizing signal, Physical Broadcast Channel are to be sent in a manner of synchronizing signal block, and introduce Sweep the function of wave beam.Each synchronizing signal block can be considered as a wave beam (simulation during sweeping wave beam (beam sweeping) Domain) resource, it is described sweep wave beam process be the synchronizing signal block on different beams repeat send process.By sweeping wave The training of beam, it is most strong that user equipment can perceive the signal received on which wave beam.
The wave beam that synchronizing signal block uses is usually broad beam, its antenna gain is foot for Idle state user equipment No more.But its antenna gain is inadequate for connected state user equipment, it usually needs thinner wave beam.Leniently wave Beam needs to carry out user equipment a new training process to narrow beam.The training of usual narrow beam is specified by cell Configure channel state information reference signals (the Channel State of (Cell-specifically configured) Information Reference Signal, CSI-RS) carry out, which is public for user equipment, is led to It is often cell level, it is public can also to be known as user equipment by the also known as CSI-RS (Cell-level CSI-RS) of cell level CSI-RS or the public CSI-RS of group of user equipments.
In the prior art, the training of narrow beam is usually carried out afterwards in random access procedure (Random Access, RA). Specifically, by taking LTE system as an example, after RA, base station reconfigures (Radio Resource by radio resource control Control reconfiguration, RRC reconfiguration) be user device configuration beam forming CSI-RS, use The signal strength of the CSI-RS of family device measuring beam forming determines the CSI- of the strongest one or more beam formings of signal RS, using as the candidate beam for subsequently carrying out data transmission with base station, wherein the CSI-RS of a beam forming is considered as couple Answer a wave beam.
But in 5G systems, especially in high band, since signal fadeout is serious compared with low-frequency range, earlier complete is needed It is trained at narrow beam, such as completes narrow beam training in RA or before RA, namely need more efficient configuration CSI-RS, to use Family equipment quickly obtains the time-frequency location of CSI-RS, to carry out the measurement of signal strength.
Invention content
The technical problem to be solved by the present invention is to provide a kind of CSI-RS configuration methods and device, computer-readable storage mediums Matter, base station, user equipment make base station send the time-frequency position that family equipment can be used to determine CSI-RS for the information of a small amount of bit number It sets, to realize the high-efficient disposition of CSI-RS.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of CSI-RS configuration methods, include the following steps：Really Determine the CSI-RS of cell level；The index information of synchronizing signal block is sent to user equipment, so that the user equipment is based on institute State the time-frequency location that index information determines the CSI-RS；Wherein, the index information of the synchronizing signal block and the CSI-RS Time-frequency location have predefined correspondence.
Optionally, the index information of the synchronizing signal block has predefined corresponding with the time-frequency location of the CSI-RS Relationship includes：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
Optionally, the CSI-RS configuration methods further include：Using log2S bit is informed described in the user equipment The OFDM symbol number of CSI-RS mappings；Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
Optionally, the CSI-RS configuration methods further include：Inform the antenna port of CSI-RS described in the user equipment Number, so that antenna port number of the user equipment based on the CSI-RS, measures each antenna port to obtain each narrow wave The reception power of beam, and determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；Receive the user The number of the antenna port of the corresponding CSI-RS of the strongest narrow beam of reception power of equipment feedback.
Optionally, have between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Wave beam binding relationship.
Optionally, the index information of the synchronizing signal block is to inform the user equipment by MAC PDU.
Optionally, the index information of the synchronizing signal block is to inform institute by the corresponding MAC PDU of random access response State user equipment.
Optionally, the index information of the synchronizing signal block is to inform the user equipment by RRC signaling.
Optionally, the index information of the synchronizing signal block is by the Master Information Block or residue in Physical Broadcast Channel Minimum system information informs the user equipment.
Optionally, the index information is selected from the set of the index for the synchronizing signal block that may be sent.
Optionally, the index information is selected from the set of the index of the synchronizing signal block really sent.
Optionally, the CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
Optionally, the CSI-RS in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at it is identical In two symbols.
Optionally, the CSI-RS configuration methods further include：CSI-RS described in the user equipment is informed by MAC CE Be activation or it is deactivated.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of CSI-RS configuration methods, include the following steps：From Base station receives the index information of synchronizing signal block；The time-frequency location of the CSI-RS is determined based on the index information；Wherein, institute The time-frequency location of the index information and the CSI-RS of stating synchronizing signal block has predefined correspondence.
Optionally, the index information of the synchronizing signal block has predefined corresponding with the time-frequency location of the CSI-RS Relationship includes：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
Optionally, the CSI-RS configuration methods further include：Log is received from the base station2S bit is used to indicate institute State the OFDM symbol number of CSI-RS mappings；Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
Optionally, the CSI-RS configuration methods further include：The antenna port number of the CSI-RS is received from the base station； Based on the antenna port number of the CSI-RS, each antenna port is measured to obtain the reception power of each narrow beam, and really Surely the antenna port of the corresponding CSI-RS of the strongest narrow beam of power is received；It is strongest to power is received described in the base station feedback The number of the antenna port of the corresponding CSI-RS of narrow beam.
Optionally, have between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Wave beam binding relationship.
Optionally, the index information of the synchronizing signal block is that the base station is sent out by MAC PDU.
Optionally, the index information of the synchronizing signal block is that the base station passes through the corresponding MAC of random access response What PDU was sent out.
Optionally, the index information of the synchronizing signal block is that the base station is sent out by RRC signaling.
Optionally, the index information of the synchronizing signal block is that the base station passes through the Master Information Block in Physical Broadcast Channel Or remaining minimum system delivering.
Optionally, the index information is selected from the set of the index for the synchronizing signal block that may be sent.
Optionally, the index information is selected from the set of the index of the synchronizing signal block really sent.
Optionally, the CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
Optionally, the CSI-RS be mapped to in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at In identical two symbols.
Optionally, the CSI-RS configuration methods further include：Receiving the CSI-RS by MAC CE from the base station is It is activation or deactivated.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of CSI-RS configuration devices, including：Determining module, It is adapted to determine that the CSI-RS of cell level；Index information sending module is suitable for sending the index of synchronizing signal block to user equipment Information, so that the user equipment determines the time-frequency location of the CSI-RS based on the index information；Wherein, the synchronous letter The index information of number block has predefined correspondence with the time-frequency location of the CSI-RS.
Optionally, the index information of the synchronizing signal block has predefined corresponding with the time-frequency location of the CSI-RS Relationship includes：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
Optionally, the CSI-RS configuration devices further include：Symbolic number informs module, is suitable for using log2S bit is accused Know the OFDM symbol number that CSI-RS described in the user equipment maps；Wherein, S is used to indicate the maximum of the CSI-RS mappings OFDM symbol number.
Optionally, the CSI-RS configuration devices further include：Port number informs module, suitable for informing the user equipment institute The antenna port number of CSI-RS is stated, so that antenna port number of the user equipment based on the CSI-RS, measures each antenna Port determines the antenna for receiving the corresponding CSI-RS of the strongest narrow beam of power to obtain the reception power of each narrow beam Port；Receiving module is suitable for receiving the corresponding CSI-RS of the strongest narrow beam of reception power of the user equipment feedback Antenna port number.
Optionally, have between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Wave beam binding relationship.
Optionally, the index information of the synchronizing signal block is to inform the user equipment by MAC PDU.
Optionally, the index information of the synchronizing signal block is to inform institute by the corresponding MAC PDU of random access response State user equipment.
Optionally, the index information of the synchronizing signal block is to inform the user equipment by RRC signaling.
Optionally, the index information of the synchronizing signal block is by the Master Information Block or residue in Physical Broadcast Channel Minimum system information informs the user equipment.
Optionally, the index information is selected from the set of the index for the synchronizing signal block that may be sent.
Optionally, the index information is selected from the set of the index of the synchronizing signal block really sent.
Optionally, the CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
Optionally, the CSI-RS be mapped to in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at In identical two symbols.
Optionally, the CSI-RS configuration devices further include：Module is informed in activation, and the use is informed suitable for passing through MAC CE CSI-RS described in the equipment of family be activation or it is deactivated.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of CSI-RS configuration devices, including：Index information connects Module is received, is suitable for receiving the index information of synchronizing signal block from base station；Position determination module is suitable for true based on the index information The time-frequency location of the fixed CSI-RS；Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have There is predefined correspondence.
Optionally, the index information of the synchronizing signal block has predefined corresponding with the time-frequency location of the CSI-RS Relationship includes：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
Optionally, the CSI-RS configuration devices further include：Symbolic number receiving module is suitable for receiving from the base station log2S bit is used to indicate the OFDM symbol number of the CSI-RS mappings；Wherein, S is used to indicate the CSI-RS mappings Maximum OFDM symbol number.
Optionally, the CSI-RS configuration devices further include：Port number receiving module is suitable for from described in the reception of the base station The antenna port number of CSI-RS；Power measurement module is suitable for the antenna port number based on the CSI-RS, measures each antenna end Mouth determines the antenna end for receiving the corresponding CSI-RS of the strongest narrow beam of power to obtain the reception power of each narrow beam Mouthful；Feedback module is suitable for the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power described in the base station feedback Number.
Optionally, have between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Wave beam binding relationship.
Optionally, the index information of the synchronizing signal block is that the base station is sent out by MAC PDU.
Optionally, the index information of the synchronizing signal block is that the base station passes through the corresponding MAC of random access response What PDU was sent out.
Optionally, the index information of the synchronizing signal block is that the base station is sent out by RRC signaling.
Optionally, the index information of the synchronizing signal block is that the base station passes through the Master Information Block in Physical Broadcast Channel Or remaining minimum system delivering.
Optionally, the index information is selected from the set of the index for the synchronizing signal block that may be sent.
Optionally, the index information is selected from the set of the index of the synchronizing signal block really sent.
Optionally, the CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
Optionally, the CSI-RS be mapped to in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at In identical two symbols.
Optionally, the CSI-RS configuration devices further include：Receiving module is activated, is suitable for passing through MAC CE from the base station Receive the CSI-RS be activation or it is deactivated.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of computer readable storage medium, it is stored thereon with The step of computer instruction, the computer instruction executes above-mentioned CSI-RS configuration methods when running.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of base station, including memory and processor, it is described to deposit The computer instruction that can be run on the processor is stored on reservoir, which is characterized in that described in the processor operation The step of above-mentioned CSI-RS configuration methods are executed when computer instruction.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of user equipment, including memory and processor, institute State the computer instruction that is stored with and can run on the processor on memory, which is characterized in that the processor operation The step of above-mentioned CSI-RS configuration methods are executed when the computer instruction.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
In embodiments of the present invention, the CSI-RS of cell level is determined；The index of synchronizing signal block is sent to user equipment Information, so that the user equipment determines the time-frequency location of the CSI-RS based on the index information；Wherein, the synchronous letter The index information of number block has predefined correspondence with the time-frequency location of the CSI-RS.Using the above scheme, base station can According to the correspondence of the time-frequency location of the index information and CSI-RS of predefined synchronizing signal block, only to be synchronized by sending The index information of block implicitly indicates the time-frequency location of a cell level CSI-RS, middle using more compared with the prior art Kind parameter informs the time-frequency location of user equipment CSI-RS, and using the scheme of the embodiment of the present invention, base station can only be sent on a small quantity Even if the information user equipment of bit determines the time-frequency location of CSI-RS, to realize the high-efficient disposition of CSI-RS.
Further, in embodiments of the present invention, log may be used2S bit informs CSI-RS described in the user equipment The OFDM symbol number of mapping, to when the maximum OFDM symbol number of CSI-RS mappings is less, save the biography of symbolic number information Defeated expense.
Further, in embodiments of the present invention, the antenna port of CSI-RS described in the user equipment is informed by base station Number, so that the user equipment determines number for the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power by measuring Code, to carry out the candidate beam of data transmission using the narrow beam as subsequent base stations and user equipment, to improve signal transmission Validity.
Further, in embodiments of the present invention, the corresponding one group of narrow beam of the CSI-RS and the synchronizing signal block pair There is wave beam binding relationship between the broad beam answered, can the narrow beam based on one or more reception power, derive The reception power of the broad beam of synchronizing signal block, without being obtained by measuring, to be effectively saved measurement resource.
Further, the number of bits of the index information determines have based on the total number of the synchronizing signal block really sent Help the synchronizing signal block really sent in base station it is less when, save the expense of index information.
Further, in embodiments of the present invention, the CSI-RS is located at the secondary synchronization signal in the synchronizing signal block In the same symbol, or in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at identical two symbols It is interior, the sign resources of existing signal can be multiplexed, to be effectively saved resource overhead.
Description of the drawings
Fig. 1 is a kind of flow chart of CSI-RS configuration methods in the embodiment of the present invention
Fig. 2 is the partial process view of another kind CSI-RS configuration methods in the embodiment of the present invention
Fig. 3 is the data flow diagram of another kind CSI-RS configuration methods in the embodiment of the present invention；
Fig. 4 is the flow chart of another CSI-RS configuration method in the embodiment of the present invention；
Fig. 5 is the partial process view of another CSI-RS configuration method in the embodiment of the present invention；
Fig. 6 is the data flow diagram of another CSI-RS configuration method in the embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of CSI-RS configuration devices in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another kind CSI-RS configuration devices in the embodiment of the present invention.
Specific implementation mode
In 5G systems, synchronizing signal, Physical Broadcast Channel are with synchronizing signal block (Synchronization Signal-block, SS-block) mode send, and introduce the function of sweeping wave beam.Each synchronizing signal block can be with It is considered as the resource for sweeping a wave beam (analog domain) during wave beam (beam sweeping), the wave beam process of sweeping is institute It states synchronizing signal block and repeats the process sent on different beams.By sweeping the training of wave beam, user equipment can be perceived at which The signal received on a wave beam is most strong.
Wherein, primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS) and Physical Broadcast Channel (Physical Broadcast Channel, PBCH) in synchronizing signal block.Multiple synchronizing signal blocks form a synchronizing signal burst (Synchronization Signal-burst, SS-burst), the synchronizing signal burst, which can be considered as, contains multiple waves One piece of resource of the Relatively centralized of beam, multiple synchronizing signal burst one synchronizing signal burst set of composition (Synchronization Signal-burst-set, SS-burst-set).
In the prior art, the training of narrow beam is usually carried out afterwards in random access procedure (Random Access, RA). But in 5G systems, especially in high band, since signal fadeout is serious compared with low-frequency range, completion narrow beam earlier is needed Training, such as narrow beam training is completed in RA or before RA, namely more efficient configuration CSI-RS is needed, so that user equipment is more The time-frequency location for obtaining CSI-RS soon, to carry out the measurement of signal strength.Accordingly, it may be desirable in Master Information Block or residue The configuration of CSI-RS is sent in minimum system information or random access response signaling.At this moment it needs to consider to reduce CSI-RS to the greatest extent Configuration information expense.
In embodiments of the present invention, the CSI-RS of cell level is determined；The index of synchronizing signal block is sent to user equipment Information, so that the user equipment determines the time-frequency location of the CSI-RS based on the index information；Wherein, the synchronous letter The index information of number block has predefined correspondence with the time-frequency location of the CSI-RS.Using the above scheme, base station can According to the correspondence of the time-frequency location of the index information and CSI-RS of predefined synchronizing signal block, only to be synchronized by sending The index information of block implicitly indicates the time-frequency location of a cell level CSI-RS, middle using more compared with the prior art Kind parameter informs the time-frequency location of user equipment CSI-RS, and using the scheme of the embodiment of the present invention, base station can only be sent on a small quantity Even if the information user equipment of bit determines the time-frequency location of CSI-RS, to realize the high-efficient disposition of CSI-RS.
It is understandable to enable above-mentioned purpose, feature and the advantageous effect of the present invention to become apparent, below in conjunction with the accompanying drawings to this The specific embodiment of invention is described in detail.
Referring to Fig.1, Fig. 1 is a kind of flow chart of CSI-RS configuration methods in the embodiment of the present invention.The CSI-RS configurations Method can be used for base station side, may include step S11 to step S12：
Step S11：Determine the CSI-RS of cell level；
Step S12：The index information of synchronizing signal block is sent to user equipment, so that the user equipment is based on the rope Fuse breath determines the time-frequency location of the CSI-RS.
In the specific implementation of step S11, narrow beam instruction is just completed in the random access procedure of 5G systems in order to realize Practice, needs the CSI-RS for determining that cell level in the random access procedure or before random access procedure, and then carry out CSI-RS Configuration.
In the specific implementation of step S12, the time-frequency of index information and the CSI-RS based on the synchronizing signal block Position has predefined correspondence, by sending the index information of synchronizing signal block to user equipment, can make the use Family equipment determines the time-frequency location of the CSI-RS based on the index information.
Specifically, the index information is used to identify the synchronizing signal block, such as can be the synchronizing signal block Block number or other information for being suitable for identifying the synchronizing signal block.
Further, the time-frequency location of the index information of the synchronizing signal block and the CSI-RS have predefined right Should be related to including：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
Specifically, the index information of the synchronizing signal block can not be one with the time-frequency location of cell level CSI-RS One is corresponding, but the index information of one or more synchronizing signal blocks corresponds to the time-frequency position of the CSI-RS of a cell level It sets.More specifically, based on the degree of freedom that base station is realized, two or more synchronizing signal blocks may correspond to an identical wide wave Beam, i.e. base station emit multiple synchronizing signal blocks using a broad beam.When user equipment receives this configuration, can pass through The measured value of multiple synchronizing signal blocks is combined to improve measurement accuracy.Base station is often only wherein on a synchronizing signal block at this time The CSI-RS of one cell level of frequency division multiplexing, therefore the time-frequency of the index information of the synchronizing signal block and cell level CSI-RS Position is not one-to-one.
Further, the index information of the synchronizing signal block has predefined corresponding with the identification number of the CSI-RS Relationship includes：The index information of one or more synchronizing signal blocks corresponds to the identification number of the CSI-RS of a cell level.It is described There is the time-frequency location of the identification number of CSI-RS and the CSI-RS predefined correspondence to include：The mark of one CSI-RS The time-frequency location of a number corresponding CSI-RS.Further, not each synchronous when base station sends multiple synchronizing signal blocks Block all binds the CSI-RS of the same cell level.Therefore, some synchronization is indicated in the CSI-RS of cell level configurations The index information of block is necessary.
In embodiments of the present invention, base station can according to the index information of predefined synchronizing signal block and CSI-RS when The correspondence of frequency position only implicitly indicates cell level CSI-RS's by sending the index information of synchronizing signal block Time-frequency location, compared with the prior art in the time-frequency location of user equipment CSI-RS informed using many kinds of parameters, using the present invention The scheme of embodiment, even if the information user equipment that base station can only send a small amount of bit determines the time-frequency location of CSI-RS, from And realize the high-efficient disposition of CSI-RS.
Further, log may be used in base station2S bit informs the OFDM that CSI-RS described in the user equipment maps Symbolic number, wherein S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
Specifically, antenna port (Port) number of cell level CSI-RS can be any value from 1 to N, wherein N For positive integer, in 5G systems, usual numerical value is 8.When the antenna port number of cell level CSI-RS is larger, such as N is 8, Cell level CSI-RS is mapped to an OFDM symbol, the resource element (Resource of each antenna port can be caused Element, RE) it is several less, the measured value for eventually leading to each wave beam is not accurate enough, and it is therefore possible to need cell level CSI-RS is mapped on 2 or more symbols.
When the CSI-RS is mapped on multiple symbols, the bit indicating cell rank of presetting digit capacity may be used in base station CSI-RS needs the symbolic number mapped, the maximum symbolic number S that the bit of the presetting digit capacity is mapped based on the CSI-RS true Fixed (S is positive integer), specifically, may be used log2S bit.
As a unrestricted example log is needed as maximum symbolic number S=828=3 bit indicates Cell level CSI-RS needs the symbolic number mapped, such as when symbolic number is 1, and the value that 3 bits are arranged is 001, when When symbolic number is 6, the value that 3 bits are arranged is 110.
In embodiments of the present invention, log may be used2S bit informs what CSI-RS described in the user equipment mapped OFDM symbol number, to when the maximum OFDM symbol number of CSI-RS mappings is less, save the transport overhead of symbolic number information.
With reference to Fig. 2, Fig. 2 is the partial process view of another kind CSI-RS configuration methods in the embodiment of the present invention.It is described another Kind CSI-RS configuration methods further include step S21 to step S22：
Step S21：The antenna port number of CSI-RS described in the user equipment is informed, so that the user equipment is based on institute The antenna port number for stating CSI-RS measures each antenna port to obtain the reception power of each narrow beam, and determines and receive The antenna port of the corresponding CSI-RS of the strongest narrow beam of power；
Step S22：Receive the corresponding CSI-RS's of the strongest narrow beam of reception power of the user equipment feedback The number of antenna port.
In the specific implementation of step S21, each antenna port (Port) corresponding one of cell level CSI-RS can be used A narrow beam, then user equipment measures the antenna port to obtain the reception power of corresponding narrow beam, such as reference signal receives Power (Reference Signal Receiving Power, RSRP), the measurement result as the narrow beam.
Specifically, the antenna port number of CSI-RS described in the user equipment is informed in base station, so that the user equipment, is surveyed The corresponding antenna port of antenna port number for measuring the CSI-RS, to obtain the reception power of corresponding each narrow beam, and Determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power.
In the specific implementation of step S22, for the antenna of the corresponding CSI-RS of the reception strongest narrow beam of power Port number receives the number of the antenna port of user equipment feedback.
In embodiments of the present invention, the antenna port number of CSI-RS described in the user equipment is informed by base station, so that The user equipment determines the number for the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power by measuring, to The candidate beam that data transmission is carried out using the narrow beam as subsequent base stations and user equipment, to improve the effective of signal transmission Property.
With reference to Fig. 3, Fig. 3 is the data flow diagram of another kind CSI-RS configuration methods in the embodiment of the present invention.The another kind CSI-RS configuration methods may include step S31 to step S34, and each step is described in detail below.
In step S31, base station 31 determines the CSI-RS of cell level.
In step s 32, base station 31 sends the index information of synchronizing signal block to user equipment 32.
In step S33, the antenna port number of user equipment 32CSI-RS is informed in base station 31.
In step S34, the strongest narrow beam of reception power that base station 31 receives the reception feedback of user equipment 32 is corresponding The number of CSI-RS antenna ports.
More detailed contents about step S31 to step S34 please refer to above and Fig. 1 to Fig. 2 shows about CSI- The associated description of RS configuration methods, details are not described herein again.
Further, have between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block There is wave beam binding relationship.Therefore, base station passes through the index information for indicating the synchronizing signal block, additionally it is possible to while to user equipment Indicate the wave beam between the corresponding one group of narrow beam of the cell level CSI-RS and the corresponding broad beam of the synchronizing signal block Binding relationship, i.e., the corresponding one group of narrow beam of described cell level CSI-RS can correspond to the corresponding width of the synchronizing signal block Wave beam.
In embodiments of the present invention, it is based on the wave beam binding relationship, user equipment can be obtained by measuring CSI-RS The reception power of narrow beam, and then can derive the synchronous letter according to the reception power of one or more narrow beams The reception power of the broad beam of number block, without being obtained by measuring, to be effectively saved measurement resource.
Further, the index information is selected from the set of the index for the synchronizing signal block that may be sent.
Wherein, the index of the synchronizing signal block that may be sent is predefined in the protocol, the possible transmission The index of synchronizing signal block is to the serial number after the synchronizing signal block sequencing that may be sent.
Further, the index information is selected from the set of the index of the synchronizing signal block really sent.
Wherein, the synchronizing signal block really sent is from the time-domain position of the synchronizing signal block that may be sent Selected section time-domain position, and really it is sent on the part time-domain position synchronizing signal block of the user equipment；Institute State the synchronizing signal block really sent can also be included in it is described may send synchronizing signal block time-domain position except when The synchronizing signal block sent on the position of domain；The index of the synchronizing signal block really sent is to the synchronization really sent Serial number after signal block sequencing.
Further, the number of bits of the index information can be based on the total number for the synchronizing signal block that may be sent It determines, wherein the time-domain position and total number of the synchronizing signal block that may be sent are predefined in the protocol.
Further, the number of bits of the index information can be based on the total number of the synchronizing signal block really sent It determines.
Specifically, the synchronizing signal block that base station is sent can be divided into two classes：The synchronizing signal block and true hair that may be sent The synchronizing signal block sent, the synchronizing signal block that base station is really sent are the subset for the synchronizing signal block that possible send.It is correspondingly same Step block index information can also be divided into two kinds, one is may send synchronizing signal block index information, it is described can The time-domain position and total number for the synchronizing signal block that can be sent are to have been predefined in agreement, but base station may not really be sent out It send；Another kind is the index information for the synchronizing signal block that base station is really sent, wherein the synchronizing signal block really sent is The selected section time-domain position from the time-domain position of the synchronizing signal block that may be sent, and on the part time-domain position Really it is sent to the synchronizing signal block of the user equipment.The index information for the synchronizing signal block that the base station is really sent is small The specified information in area, it is related with cell deployment.
It can when base station sends the index information of synchronizing signal block to user equipment using the scheme of the embodiment of the present invention It is sent with the index information to the synchronizing signal block that may be sent, the index for the synchronizing signal block that only can also really send Information is sent, since the synchronizing signal block really sent is less than the synchronizing signal block that is equal to and may send, only to really sending out The index information of the synchronizing signal block sent is sent, and can be completed index information configuration more quickly, be saved index information Expense.
In embodiments of the present invention, sum of the number of bits of the index information based on the synchronizing signal block really sent Mesh determines, when contributing to the synchronizing signal block really sent in base station less, saves the expense of index information.
Further, the CSI-RS can be located at the same symbol with the secondary synchronization signal in the synchronizing signal block It is interior.
Further, the CSI-RS can in the synchronizing signal block secondary synchronization signal and primary synchronization signal position In in identical two symbols.Specifically, the secondary synchronization signal in the synchronizing signal block is located in a symbol, it is described same Primary synchronization signal in step block is located in another symbol, and the CSI-RS can be located in above-mentioned two symbol.
In embodiments of the present invention, the CSI-RS is located at the same symbol with the secondary synchronization signal in the synchronizing signal block In number, or in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located in identical two symbols, can be with Multiplexing has the sign resources of signal, to be effectively saved resource overhead.
Further, the index information of the synchronizing signal block can be by broadcast type signal deployment to user equipment , such as pass through the Master Information Block (Master Information Block, MIB) or residue minimum in Physical Broadcast Channel System information (Remaining Minimum System Information, RMSI) informs the user equipment.
The index information of the synchronizing signal block can be matched by the broadcast type signaling of on-demand application (on-demand) It sets and applies for that base station sends it after receiving application to base station by sending Preamble to user equipment, such as user equipment His system information (Other Minimum System Information, OSI) gives user equipment, includes in other systems information The index information of synchronizing signal block.
The index information of the synchronizing signal block can be by media access control protocol data cell (Media Access Control Protocol Data Unit, MAC PDU) inform the user equipment.
Further, the index information of the synchronizing signal block can be by random access response (Random Access Response, RAR) corresponding MAC PDU inform the user equipment.
Specifically, the index information of the synchronizing signal block can inform that the user sets by the corresponding MAC PDU of RAR It is standby, it can also inform the user equipment by other MAC PDU.In embodiments of the present invention, to which kind of MAC specifically used PDU is not restricted.
The index information of the synchronizing signal block can be by wireless heterogeneous networks (Radio Resource Control, RRC) user equipment described in signaled.
By taking MAC PDU as an example, when user equipment initiating random access procedure, base station is by MAC PDU by the synchronization The index information of block is told to user equipment；When the cell level CSI-RS for being allocated to user equipment changes, base station can To tell the index information of new synchronizing signal block to user equipment by MAC PDU.
In embodiments of the present invention, CSI-RS configuration methods further include by MAC controlled entities (MAC Control Entity, MAC CE) inform that CSI-RS described in the user equipment is activation or deactivated step.
Specifically, the CSI-RS is activation, it is meant that user equipment can measure this CSI-RS；The CSI-RS is It is deactivated, it is meant that user equipment cannot measure this CSI-RS.
With reference to Fig. 4, Fig. 4 is the flow chart of another CSI-RS configuration method in the embodiment of the present invention.It is described another CSI-RS configuration methods can be used for user equipment side, may include step S41 to step S42：
Step S41：The index information of synchronizing signal block is received from base station；
Step S42：The time-frequency location of the CSI-RS is determined based on the index information.
In specific implementation, the time-frequency position of the user equipment index information based on the synchronizing signal block and the CSI-RS It sets with predefined correspondence, according to the index information of the synchronizing signal block received from base station, it may be determined that the CSI- The time-frequency location of RS.
More detailed contents about step S41 to step S42 please refer to being configured about CSI-RS above and shown in Fig. 1 The associated description of method, details are not described herein again.
With reference to Fig. 5, Fig. 5 is the partial process view of another CSI-RS configuration method in the embodiment of the present invention.It is described another Kind CSI-RS configuration methods can also include step S51 to step S53：
Step S51：The antenna port number of the CSI-RS is received from the base station；
Step S52：Based on the antenna port number of the CSI-RS, each antenna port is measured to obtain each narrow beam Power is received, and determines the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
Step S53：To the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power described in the base station feedback Number.
In the specific implementation of step S52, antenna port number of the user equipment based on the CSI-RS received from base station measures The antenna port is to obtain the reception power of corresponding narrow beam, such as RSRP, as the measurement result of the narrow beam, and determines Receive the antenna port of the corresponding CSI-RS of the strongest narrow beam of power.
In the specific implementation of step S53, in the day for determining the corresponding CSI-RS of the reception strongest narrow beam of power After line end mouth, the number of the antenna port is fed back to base station by user equipment.
More detailed contents about step S51 to step S53 please refer to above and Fig. 2 shows about another CSI- The associated description of RS configuration methods, details are not described herein again.
With reference to Fig. 6, Fig. 6 is the data flow diagram of another CSI-RS configuration method in the embodiment of the present invention.It is described another CSI-RS configuration methods may include step S61 to step S66, and each step is described in detail below.
In step S61, user equipment 62 receives the index information of synchronizing signal block from base station 61.
In step S62, user equipment 62 determines the time-frequency location of CSI-RS based on the index information.
In step S63, user equipment 62 receives the antenna port number of CSI-RS from base station 61.
In step S64, antenna port number of the user equipment 62 based on the CSI-RS measures each antenna port to obtain To the reception power of each narrow beam.
In step S65, user equipment 62 determines the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power.
In step S66, user equipment 62 is to the corresponding CSI-RS's of the 61 strongest narrow beam of feedback reception power of base station The number of antenna port number.
More detailed contents about step S61 to step S66 please refer to above and shown in Fig. 3 about another CSI- The associated description of RS configuration methods, details are not described herein again.
The embodiment of the present invention also provides a kind of structural schematic diagram of CSI-RS configuration devices, as shown in Figure 7.The CSI-RS Configuration device can be used for base station side, can include determining that module 71, index information sending module 72, symbolic number inform module 73, port number informs that module 76 is informed in module 74, receiving module 75 and activation.
Wherein, the determining module 71 is adapted to determine that the CSI-RS of cell level.
The index information sending module 72 is suitable for sending the index information of synchronizing signal block to user equipment, so that institute State the time-frequency location that user equipment determines the CSI-RS based on the index information；Wherein, the index of the synchronizing signal block Information and the time-frequency location of the CSI-RS have predefined correspondence.
The symbolic number informs module 73, is suitable for using log2S bit informs that CSI-RS described in the user equipment reflects The OFDM symbol number penetrated；Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
The port number informs module 74, suitable for informing the antenna port number of CSI-RS described in the user equipment, so that Antenna port number of the user equipment based on the CSI-RS measures each antenna port to obtain the reception of each narrow beam Power, and determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
The receiving module 75, the strongest narrow beam of the reception power for being suitable for receiving the user equipment feedback correspond to CSI-RS antenna port number.
Module 76 is informed in the activation, suitable for informing that CSI-RS described in the user equipment is that activation is gone back by MAC CE It is deactivated.
Further, the time-frequency location of the index information of the synchronizing signal block and the CSI-RS have predefined right Should be related to including：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
It is tied up with wave beam between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Determine relationship.
The index information of the synchronizing signal block is to inform the user equipment by MAC PDU.
The index information of the synchronizing signal block is to inform that the user sets by the corresponding MAC PDU of random access response Standby.
The index information of the synchronizing signal block is to inform the user equipment by RRC signaling.
The index information of the synchronizing signal block is by Master Information Block in Physical Broadcast Channel or remaining minimum system System information informs the user equipment.
The index information is selected from the set of the index for the synchronizing signal block that may be sent.
The index information is selected from the set of the index of the synchronizing signal block really sent.
The CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
The CSI-RS be mapped to in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at it is identical In two symbols.
More detailed contents about the CSI-RS configuration devices please refer to is suitable for base above and shown in Fig. 1 to Fig. 3 Stand side CSI-RS configuration methods associated description, details are not described herein again.
Fig. 8 shows the structural schematic diagram of another kind CSI-RS configuration devices in the embodiment of the present invention.The another kind CSI-RS configuration devices can be used for user equipment side, may include index information receiving module 81, position determination module 82, symbol Number receiving module 83, port number receiving module 84, power measurement module 85, feedback module 86 and activation receiving module 87.
Wherein, the index information receiving module 81 is suitable for receiving the index information of synchronizing signal block from base station.
The position determination module 82, suitable for determining the time-frequency location of the CSI-RS based on the index information；Wherein, The index information of the synchronizing signal block has predefined correspondence with the time-frequency location of the CSI-RS.
The symbolic number receiving module 83 is suitable for receiving log from the base station2S bit is used to indicate the CSI-RS The OFDM symbol number of mapping；Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
The port number receiving module 84, suitable for receiving the antenna port number of the CSI-RS from the base station；
The power measurement module 85, be suitable for the antenna port number based on the CSI-RS, measure each antenna port with The reception power of each narrow beam is obtained, and determines the port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
The feedback module 86 is suitable for the corresponding CSI-RS of the reception strongest narrow beam of power described in the base station feedback Port number.
The activation receiving module 87, suitable for from the base station by MAC CE receive the CSI-RS be activation or It is deactivated.
Further, the time-frequency location of the index information of the synchronizing signal block and the CSI-RS have predefined right Should be related to including：The index information of one or more synchronizing signal blocks corresponds to the time-frequency location of the CSI-RS of a cell level.
It is tied up with wave beam between the corresponding one group of narrow beam of CSI-RS broad beam corresponding with the synchronizing signal block Determine relationship.
The index information of the synchronizing signal block is that the base station is sent out by MAC PDU.
The index information of the synchronizing signal block is that the base station is sent out by the corresponding MAC PDU of random access response 's.
The index information of the synchronizing signal block is that the base station is sent out by RRC signaling.
The index information of the synchronizing signal block, which is the base station, passes through Master Information Block in Physical Broadcast Channel or surplus Remaining minimum system delivering.
The index information is selected from the set of the index for the synchronizing signal block that may be sent.
The index information is selected from the set of the index of the synchronizing signal block really sent.
The CSI-RS is located at the secondary synchronization signal in the synchronizing signal block in the same symbol.
The CSI-RS be mapped to in the synchronizing signal block secondary synchronization signal and primary synchronization signal be located at it is identical In two symbols.
More detailed contents about the CSI-RS configuration devices please refer to be suitable for using above and shown in fig. 4 to fig. 6 The associated description of the CSI-RS configuration methods of family end side, details are not described herein again.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer instruction, described Computer instruction executes the step of above-mentioned CSI-RS configuration methods suitable for base station side when running.The computer-readable storage Medium can be CD, mechanical hard disk, solid state disk etc..
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer instruction, described Computer instruction executes the step of above-mentioned CSI-RS configuration methods suitable for subscriber terminal side when running.It is described computer-readable Storage medium can be CD, mechanical hard disk, solid state disk etc..
The embodiment of the present invention additionally provides a kind of base station, including memory and processor, and energy is stored on the memory Enough computer instructions run on the processor, the processor execute above-mentioned be suitable for when running the computer instruction The step of CSI-RS configuration methods of base station side.
The embodiment of the present invention additionally provides a kind of user equipment, including memory and processor, is stored on the memory There are the computer instruction that can be run on the processor, the processor to execute above-mentioned suitable when running the computer instruction The step of CSI-RS configuration methods for subscriber terminal side.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the range of restriction.

Claims (60)

1. a kind of CSI-RS configuration methods, which is characterized in that include the following steps：
Determine the CSI-RS of cell level；
The index information that synchronizing signal block is sent to user equipment, so that the user equipment determines institute based on the index information State the time-frequency location of CSI-RS；
Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have predefined correspondence.
2. CSI-RS configuration methods according to claim 1, which is characterized in that the index information of the synchronizing signal block with The time-frequency location of the CSI-RS have predefined correspondence include：The index information pair of one or more synchronizing signal blocks Answer the time-frequency location of the CSI-RS of a cell level.
3. CSI-RS configuration methods according to claim 1, which is characterized in that further include：
Using log2S bit informs the OFDM symbol number that CSI-RS described in the user equipment maps；
Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
4. CSI-RS configuration methods according to claim 1, which is characterized in that further include：
The antenna port number of CSI-RS described in the user equipment is informed, so that day of the user equipment based on the CSI-RS Line port number measures each antenna port to obtain the reception power of each narrow beam, and determines that reception power is strongest narrow The antenna port of the corresponding CSI-RS of wave beam；
Receive number of the antenna port of the corresponding CSI-RS of the strongest narrow beam of reception power of the user equipment feedback Code.
5. CSI-RS configuration methods according to claim 1, which is characterized in that the corresponding one group of narrow beam of the CSI-RS There is wave beam binding relationship between broad beam corresponding with the synchronizing signal block.
6. CSI-RS configuration methods according to claim 1, which is characterized in that the index information of the synchronizing signal block is The user equipment is informed by MAC PDU.
7. CSI-RS configuration methods according to claim 1, which is characterized in that the index information of the synchronizing signal block is The user equipment is informed by the corresponding MAC PDU of random access response.
8. CSI-RS configuration methods according to claim 1, which is characterized in that the index information of the synchronizing signal block is The user equipment is informed by RRC signaling.
9. CSI-RS configuration methods according to claim 1, which is characterized in that the index information of the synchronizing signal block is The user equipment is informed by Master Information Block in Physical Broadcast Channel or remaining minimum system information.
10. CSI-RS configuration methods according to claim 1, which is characterized in that the index information, which is selected from, to be sent Synchronizing signal block index set.
11. CSI-RS configuration methods according to claim 10, which is characterized in that the index information is selected from true send Synchronizing signal block index set.
12. CSI-RS configuration methods according to claim 1, which is characterized in that the CSI-RS and the synchronizing signal Secondary synchronization signal in block is located in the same symbol.
13. CSI-RS configuration methods according to claim 1, which is characterized in that the CSI-RS and the synchronizing signal Secondary synchronization signal and primary synchronization signal in block are located in identical two symbols.
14. CSI-RS configuration methods according to claim 1, which is characterized in that further include：
By MAC CE inform CSI-RS described in the user equipment be activation or it is deactivated.
15. a kind of CSI-RS configuration methods, which is characterized in that include the following steps：
The index information of synchronizing signal block is received from base station；
The time-frequency location of the CSI-RS is determined based on the index information；
Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have predefined correspondence.
16. CSI-RS configuration methods according to claim 15, which is characterized in that the index information of the synchronizing signal block With the time-frequency location of the CSI-RS there is predefined correspondence to include：The index information of one or more synchronizing signal blocks The time-frequency location of the CSI-RS of a corresponding cell level.
17. CSI-RS configuration methods according to claim 15, which is characterized in that further include：
Log is received from the base station2S bit is used to indicate the OFDM symbol number of the CSI-RS mappings；
Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
18. CSI-RS configuration methods according to claim 15, which is characterized in that further include：
The antenna port number of the CSI-RS is received from the base station；
Based on the antenna port number of the CSI-RS, each antenna port is measured to obtain the reception power of each narrow beam, and And determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
To the number for the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power described in the base station feedback.
19. CSI-RS configuration methods according to claim 15, which is characterized in that the corresponding one group of narrow wave of the CSI-RS There is wave beam binding relationship between beam broad beam corresponding with the synchronizing signal block.
20. CSI-RS configuration methods according to claim 15, which is characterized in that the index information of the synchronizing signal block The base station is sent out by MAC PDU.
21. CSI-RS configuration methods according to claim 20, which is characterized in that the index information of the synchronizing signal block The base station is sent out by the corresponding MAC PDU of random access response.
22. CSI-RS configuration methods according to claim 15, which is characterized in that the index information of the synchronizing signal block The base station is sent out by RRC signaling.
23. CSI-RS configuration methods according to claim 15, which is characterized in that the index information of the synchronizing signal block It is that the base station passes through the Master Information Block or residue minimum system delivering in Physical Broadcast Channel.
24. CSI-RS configuration methods according to claim 15, which is characterized in that the index information, which is selected from, to be sent Synchronizing signal block index set.
25. CSI-RS configuration methods according to claim 24, which is characterized in that the index information is selected from true send Synchronizing signal block index set.
26. CSI-RS configuration methods according to claim 15, which is characterized in that the CSI-RS and the synchronizing signal Secondary synchronization signal in block is located in the same symbol.
27. CSI-RS configuration methods according to claim 15, which is characterized in that the CSI-RS be mapped to it is described same Secondary synchronization signal and primary synchronization signal in step block are located in identical two symbols.
28. CSI-RS configuration methods according to claim 15, which is characterized in that further include：
From the base station by MAC CE receive the CSI-RS be activation or it is deactivated.
29. a kind of CSI-RS configuration devices, which is characterized in that including：
Determining module is adapted to determine that the CSI-RS of cell level；
Index information sending module is suitable for sending the index information of synchronizing signal block to user equipment, so that the user equipment The time-frequency location of the CSI-RS is determined based on the index information；
Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have predefined correspondence.
30. CSI-RS configuration devices according to claim 29, which is characterized in that the index information of the synchronizing signal block With the time-frequency location of the CSI-RS there is predefined correspondence to include：The index information of one or more synchronizing signal blocks The time-frequency location of the CSI-RS of a corresponding cell level.
31. CSI-RS configuration devices according to claim 29, which is characterized in that further include：
Symbolic number informs module, is suitable for using log2S bit informs the OFDM symbol that CSI-RS described in the user equipment maps Number；
Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
32. CSI-RS configuration devices according to claim 29, which is characterized in that further include：
Port number informs module, suitable for informing the antenna port number of CSI-RS described in the user equipment, so that the user sets The standby antenna port number based on the CSI-RS, measures each antenna port to obtain the reception power of each narrow beam, and Determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
Receiving module is suitable for receiving the corresponding CSI-RS's of the strongest narrow beam of reception power of the user equipment feedback The number of antenna port.
33. CSI-RS configuration devices according to claim 29, which is characterized in that the corresponding one group of narrow wave of the CSI-RS There is wave beam binding relationship between beam broad beam corresponding with the synchronizing signal block.
34. CSI-RS configuration devices according to claim 29, which is characterized in that the index information of the synchronizing signal block It is that the user equipment is informed by MAC PDU.
35. CSI-RS configuration devices according to claim 34, which is characterized in that the index information of the synchronizing signal block It is that the user equipment is informed by the corresponding MAC PDU of random access response.
36. CSI-RS configuration devices according to claim 29, which is characterized in that the index information of the synchronizing signal block It is that the user equipment is informed by RRC signaling.
37. CSI-RS configuration devices according to claim 29, which is characterized in that the index information of the synchronizing signal block It is that the user equipment is informed by Master Information Block in Physical Broadcast Channel or remaining minimum system information.
38. CSI-RS configuration devices according to claim 29, which is characterized in that the index information, which is selected from, to be sent Synchronizing signal block index set.
39. according to the CSI-RS configuration devices described in claim 38, which is characterized in that the index information is selected from true send Synchronizing signal block index set.
40. CSI-RS configuration devices according to claim 29, which is characterized in that the CSI-RS and the synchronizing signal Secondary synchronization signal in block is located in the same symbol.
41. CSI-RS configuration devices according to claim 29, which is characterized in that the CSI-RS be mapped to it is described same Secondary synchronization signal and primary synchronization signal in step block are located in identical two symbols.
42. CSI-RS configuration devices according to claim 29, which is characterized in that further include：
Module is informed in activation, suitable for informing that CSI-RS described in the user equipment is activation or deactivates by MAC CE 's.
43. a kind of CSI-RS configuration devices, which is characterized in that including：
Index information receiving module is suitable for receiving the index information of synchronizing signal block from base station；
Position determination module, suitable for determining the time-frequency location of the CSI-RS based on the index information；
Wherein, the index information of the synchronizing signal block and the time-frequency location of the CSI-RS have predefined correspondence.
44. CSI-RS configuration devices according to claim 43, which is characterized in that the index information of the synchronizing signal block With the time-frequency location of the CSI-RS there is predefined correspondence to include：The index information of one or more synchronizing signal blocks The time-frequency location of the CSI-RS of a corresponding cell level.
45. CSI-RS configuration devices according to claim 43, which is characterized in that further include：
Symbolic number receiving module is suitable for receiving log from the base station2S bit is used to indicate the OFDM of the CSI-RS mappings Symbolic number；
Wherein, S is used to indicate the maximum OFDM symbol number of the CSI-RS mappings.
46. CSI-RS configuration devices according to claim 43, which is characterized in that further include：
Port number receiving module, suitable for receiving the antenna port number of the CSI-RS from the base station；
Power measurement module is suitable for the antenna port number based on the CSI-RS, and it is each narrow to obtain to measure each antenna port The reception power of wave beam, and determine the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power；
Feedback module is suitable for the antenna port for receiving the corresponding CSI-RS of the strongest narrow beam of power described in the base station feedback Number.
47. CSI-RS configuration devices according to claim 43, which is characterized in that the corresponding one group of narrow wave of the CSI-RS There is wave beam binding relationship between beam broad beam corresponding with the synchronizing signal block.
48. CSI-RS configuration devices according to claim 43, which is characterized in that the index information of the synchronizing signal block The base station is sent out by MAC PDU.
49. CSI-RS configuration devices according to claim 48, which is characterized in that the index information of the synchronizing signal block The base station is sent out by the corresponding MAC PDU of random access response.
50. CSI-RS configuration devices according to claim 43, which is characterized in that the index information of the synchronizing signal block The base station is sent out by RRC signaling.
51. CSI-RS configuration devices according to claim 43, which is characterized in that the index information of the synchronizing signal block It is that the base station passes through the Master Information Block or residue minimum system delivering in Physical Broadcast Channel.
52. CSI-RS configuration devices according to claim 43, which is characterized in that the index information, which is selected from, to be sent Synchronizing signal block index set.
53. CSI-RS configuration devices according to claim 52, which is characterized in that the index information is selected from true send Synchronizing signal block index set.
54. CSI-RS configuration devices according to claim 43, which is characterized in that the CSI-RS and the synchronizing signal Secondary synchronization signal in block is located in the same symbol.
55. CSI-RS configuration devices according to claim 43, which is characterized in that the CSI-RS be mapped to it is described same Secondary synchronization signal and primary synchronization signal in step block are located in identical two symbols.
56. CSI-RS configuration devices according to claim 43, which is characterized in that further include：
Activate receiving module, suitable for from the base station by MAC CE receive the CSI-RS be activation or it is deactivated.
57. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction Perform claim requires the step of any one of 1 to 14 CSI-RS configuration methods when operation.
58. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction Perform claim requires the step of any one of 15 to 28 CSI-RS configuration methods when operation.
59. a kind of base station, including memory and processor, be stored on the memory to run on the processor Computer instruction, which is characterized in that perform claim requires any one of 1 to 14 institute when the processor runs the computer instruction The step of stating CSI-RS configuration methods.
60. a kind of user equipment, including memory and processor, it is stored with and can transports on the processor on the memory Capable computer instruction, which is characterized in that perform claim requires 15 to 28 when the processor runs the computer instruction The step of one CSI-RS configuration method.
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CN112586002A (en) * 2020-11-23 2021-03-30 北京小米移动软件有限公司 Information request method and information request device
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