CN108631989A - The transmission method and device of the channel state information pilot tone of port code division multiplexing - Google Patents

The transmission method and device of the channel state information pilot tone of port code division multiplexing Download PDF

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Publication number
CN108631989A
CN108631989A CN201710184663.7A CN201710184663A CN108631989A CN 108631989 A CN108631989 A CN 108631989A CN 201710184663 A CN201710184663 A CN 201710184663A CN 108631989 A CN108631989 A CN 108631989A
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China
Prior art keywords
pattern
state information
channel state
division multiplexing
code division
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CN201710184663.7A
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Chinese (zh)
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CN108631989B (en
Inventor
李永
吴昊
蒋创新
鲁照华
李儒岳
陈艺戬
蔡剑兴
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ZTE Corp
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ZTE Corp
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Priority to CN201710184663.7A priority Critical patent/CN108631989B/en
Priority to PCT/CN2018/080073 priority patent/WO2018171683A1/en
Publication of CN108631989A publication Critical patent/CN108631989A/en
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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention provides a kind of transmission methods and device of the channel state information pilot tone of port code division multiplexing.Wherein, this method includes：Base station determines the information of channel state information pilot tone, wherein, the information of channel state information pilot tone includes at least the number and the first pattern of channel state information pilot frequency port, channel state information pilot frequency port is used for launch channel status information pilot tone, first pattern is the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel state information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more constituent element；Base station sends the information of channel state information pilot tone to terminal；Base Transmitter channel state information pilot tone.The system complexity that the present invention solves transmitting channel state information pilot tone in the related technology is high, and the technical issues of be unable to fully using power.

Description

The transmission method and device of the channel state information pilot tone of port code division multiplexing
Technical field
The present invention relates to the communications fields, in particular to a kind of channel state information pilot tone of port code division multiplexing Transmission method and device.
Background technology
Long term evolution (LTE, Long Term Evolution)/long-term evolution upgrading (LTE-A, LTE-Advanced) skill Art is the fourth generation mobile communication technology (4G) of mainstream.Channel state information pilot tone (CSI-RS) is introduced in LTE-A to be used for Predictably terminal imagination channel status.The CSI-RS, referred to as non-zero power CSI-RS (NZP CSI-RS) emitted using non-zero power；Sometimes It is interfered in order to avoid generating, needs to avoid the data transmitting on some RE on PDSCH, and zero energy is used to emit CSI-RS modes It realizes, at this time referred to as zero energy CSI-RS (ZP CSI-RS), corresponding sets of resource units is zero energy CSI-RS resource (Zero Power CSI-RS Resource).It is interfered sometimes for measuring, CSI-RS is emitted using zero energy, it is corresponding at this time Sets of resource units is known as interferometry resource (CSI-IM Resource, Channel-State Information- Interference Measurement Resource)。
The configuration of channel state information pilot frequency configuration, i.e. CSI-RS (CSI reference signal configuration, CSI-RS configuration) to indicate CSI-RS mapped RE, that is, RE used in CSI-RS is transmitted, CSI-RS matches Serial number is set to distinguish different CSI-RS configurations.CSI-RS sub-frame configurations (CSI reference signal subframe Configuration) indicating subframe where CSI-RS transmission.
A kind of CSI-RS configuration is the CSI-RS configurations of certain antenna port number now, such as antenna port number is 8 Configure the CSI-RS configurations of serial number 0.Usually configuration serial number is exactly call number.
The relevant technologies support that port number is 1,2,4,8,12,16 CSI-RS, the CSI-RS resource of these port numbers Unit pattern repeats in transmission subframe on each PRB pair of bandwidth range.
Wherein, the CSI-RS resource (CSI-RS resource) of port number 1,2,4,8 is configured by single CSI-RS The CSI-RS resource of composition, port number 12,16,20,24,28,32 is polymerized by multiple CSI-RS configurations.
Base station or terminal usually measure channel status, a CSI by channel state measurement process (CSI Process) One or more CSI-RS resource are usually configured under Process, terminal is fed back according to the measurement of CSI-RS.
In order to make full use of power and improve the precision of channel measurement, port is divided into multiple groups, and the port in group is adopted With the mode of code division multiplexing.
Base station notifies that information of the terminal about CSI-RS, these information include by top signaling：CSI-RS resource configures Identifier (CSI-RS resource configurat ion identity), CSI-RS port numbers, CSI-RS configuration, CSI-RS sub-frame configurations.
Production, life, the development of scientific research technology propose the demand to the 5th generation (5G) wireless communication technique.Skill that 5G is wireless Art by big bandwidth, massive-MIMO beam technique characterized by, need to meet big data quantity transmission, low delay transmission, object object It is transmitted in the case of interconnection transmission, high-speed mobile.3GPP has organized NR (New Radio) access technology research.The frequency that NR is adapted to Range can configure the interval between subcarrier, and can configure subframe or time slot in the time domain from 0.6GHz to 100GHz Length, the transmission of data can carry out in the OFDM symbol of configuration, and the pattern of data demodulation pilot tone and position need to match It sets, and can change between OFDM symbol and OFDM symbol and can also change wave beam inside wave beam or even OFDM symbol.In NR It is also required to introduce CSI-RS to support the measurement of channel state information, the management of wave beam, the tracking of channel phase；NR requires CSI- Three kinds of radiation patterns may be used in RS, and periodic mode transmitting, semi-durable mode emits, aperiodic mode emits.In order to improve The power usage efficiency of CSI-RS needs to support the code division multiplexing between port.There is presently no transmit pattern versatile and flexible Channel state information pilot tone, and make full use of the scheme of power.
It is high for the system complexity of transmitting channel state information pilot tone in the related technology, and be unable to fully utilize power The technical issues of, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of transmission method and device of the channel state information pilot tone of port code division multiplexing, It is high with the system complexity at least solving transmitting channel state information pilot tone in the related technology, and be unable to fully utilize power Technical problem.
One side according to the ... of the embodiment of the present invention provides a kind of channel state information pilot tone of port code division multiplexing Transmission method, this method include：Base station determines the information of channel state information pilot tone, wherein the letter of channel state information pilot tone Breath is including at least the number and the first pattern of channel state information pilot frequency port, and channel state information pilot frequency port is for emitting letter Channel state information pilot tone, the first pattern are the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel Status information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more groups At element；Base station sends the information of channel state information pilot tone to terminal；Base Transmitter channel state information pilot tone.
Optionally, the information of channel state information pilot tone carries out combined coding in the following ways：To channel state information The number of pilot frequency port and the first pattern carry out combined coding；Or, the information in channel state information pilot tone further includes channel shape When the classification of the constituent element of state information pilot resources, to the number of channel state information pilot frequency port, the first pattern and composition The classification of element carries out combined coding.
Optionally, channel state information pilot frequency information further includes the classification of constituent element, channel state information pilot frequency port The length of code division multiplexing, wherein base station send channel state information pilot tone information include to terminal：Base station to terminal by sending out The classification of the constituent element sent and the length of channel state information pilot frequency port code division multiplexing indicate collectively the first pattern；Or, base It stands through the number of the channel state information pilot frequency port sent to terminal, the classification of constituent element and channel state information pilot tone The length of port code division multiplexing indicates collectively the first pattern.
Optionally, constituent element occupies Y subcarrier on frequency domain, occupies Z OFDM symbol, channel status in the time domain The length of information pilot frequency port code division multiplexing is X, and X, Y and Z are positive integer, wherein the first pattern determines in the following manner： In the case that Y is more than Z, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain；It is less than Z in Y In the case of, the first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain；The case where Y is equal to Z Under, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol or the first pattern in the time domain accounts on frequency domain With 1 subcarrier, X OFDM symbol is occupied in the time domain.
Optionally, the second pattern occupies L subcarrier on frequency domain, and the second pattern occupies M OFDM symbol in the time domain, The number of channel state information pilot frequency port is N, and the length of channel state information pilot frequency port code division multiplexing is X, the second pattern For the pattern of the channel state information pilot resources for Bearer Channel status information pilot tone, wherein be determined as follows First pattern：The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take most The function being worth greatly；The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are just whole Number.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：Base station is by two in multiple information A notice is to terminal, to indicate the first pattern by two information of notice, wherein two information of notice are compiled using joint Code, multiple information include the R OFDM that the first pattern the Q subcarrier, the first pattern that are occupied on frequency domain occupy in the time domain The length X of symbol and channel state information pilot frequency port code division multiplexing.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：The first pattern is crossed in base station The number of constituent element is notified to terminal.
Optionally, discontinuous in the position of the RE of the first pattern port code division multiplexing, in the following way really Fixed first pattern：Multiple RE are connected according to the current Ubiety of multiple RE, multiple RE after being connected are formed The first pattern.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：Base station notifies the classification of subframe To terminal, to indicate the first pattern by the classification of subframe, wherein subframe is to emit the subframe used when the first pattern.
Optionally, base station the classification of subframe is notified include to terminal：Base station is by the number of the OFDM symbol included by subframe Mesh is notified to terminal.
Optionally, base station the classification of subframe is notified include to terminal：Base station carries the son used when emitting the first pattern The gap size of wave is notified to terminal.
Optionally, this method further includes：Base station is multiple by the information of the second pattern and channel state information pilot frequency port code point Length information is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern accounts in the time domain Length with M OFDM symbol, channel state information pilot frequency port code division multiplexing is X, and the second pattern is for Bearer Channel shape The pattern of the channel state information pilot resources of state information pilot tone, the first pattern wherein, by determining the first figure by such as under type Case：By the second pattern information with and the joint instructions of length X of channel state information pilot frequency port code division multiplexing determine first Pattern.
Optionally, the information for the M OFDM symbol that the first pattern is occupied in the time domain by the second pattern is believed with channel status The length X joint instructions for ceasing pilot frequency port code division multiplexing determine.
Optionally, the information of channel state information pilot tone further includes whether the first pattern exists only in an OFDM symbol Information, wherein terminal passes through the second pattern-information, the length X of channel state information pilot frequency port code division multiplexing, the first pattern The information whether existed only in an OFDM symbol determines the first pattern of base station instruction.
Optionally, base station indicates whether the first pattern exists only in an OFDM symbol by Phase Tracking pilot tone Information, wherein if Phase Tracking pilot tone exists, it indicates that the first pattern exists only in an OFDM symbol, if phase Tracking pilot tone is if it does not exist, then the first pattern of instruction not exists only in an OFDM symbol.
Other side according to the ... of the embodiment of the present invention provides a kind of channel state information pilot tone of port code division multiplexing Transmitting device, which includes：Determination unit, the information for determining channel state information pilot tone, wherein channel status is believed The information for ceasing pilot tone includes at least the number and the first pattern of channel state information pilot frequency port, channel state information pilot frequency port For launch channel status information pilot tone, the first pattern is the resource unit RE's of channel state information pilot frequency port code division multiplexing Pattern, channel state information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one A or multiple constituent element；Transmission unit, for sending the information of channel state information pilot tone to terminal；Transmitter unit is used for Launch channel status information pilot tone.
Optionally, transmission unit carries out combined coding in the following ways to the information of channel state information pilot tone：To letter The number of channel state information pilot frequency port and the first pattern carry out combined coding；Or, channel state information pilot tone information also When the classification of the constituent element including channel state information pilot resources, to the number of channel state information pilot frequency port, first The classification of pattern and constituent element carries out combined coding.
Optionally, channel state information pilot frequency information further includes the classification of constituent element, channel state information pilot frequency port The length of code division multiplexing, wherein transmission unit includes：First sending module, for the constituent element by being sent to terminal Classification and the length of channel state information pilot frequency port code division multiplexing indicate collectively the first pattern；Or, the second sending module, is used for Pass through the number of the channel state information pilot frequency port sent to terminal, the classification of constituent element and channel state information pilot tone end The length of mouth code division multiplexing indicates collectively the first pattern.
Optionally, constituent element occupies Y subcarrier on frequency domain, occupies Z OFDM symbol, channel status in the time domain The length of information pilot frequency port code division multiplexing is X, and X, Y and Z are positive integer, wherein the first pattern determines in the following manner： In the case that Y is more than Z, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain；It is less than Z in Y In the case of, the first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain；The case where Y is equal to Z Under, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol or the first pattern in the time domain accounts on frequency domain With 1 subcarrier, X OFDM symbol is occupied in the time domain.
Optionally, the second pattern occupies L subcarrier on frequency domain, and the second pattern occupies M OFDM symbol in the time domain, The number of channel state information pilot frequency port is N, and the length of channel state information pilot frequency port code division multiplexing is X, the second pattern For the pattern of the channel state information pilot resources for Bearer Channel status information pilot tone, wherein be determined as follows First pattern：The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take most The function being worth greatly；The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are just whole Number.
Optionally, transmission unit includes：First notification module, for by two in multiple information notices to terminal, with The first pattern is indicated by two information of notice, wherein two information of notice use combined coding, and multiple information include the The R OFDM symbol and channel state information that Q subcarrier that one pattern occupies on frequency domain, the first pattern occupy in the time domain The length X of pilot frequency port code division multiplexing.
Optionally, transmission unit includes：The number of second notification module, the constituent element for crossing over the first pattern is led to Know to terminal.
Optionally it is determined that unit is discontinuous in the position of the RE of the first pattern port code division multiplexing, by such as Under type determines the first pattern：Multiple RE are connected according to the current Ubiety of multiple RE, it is more after being connected The first pattern that a RE is formed.
Optionally, transmission unit includes：Third notice module, for notifying the classification of subframe to terminal, to pass through son The classification of frame indicates the first pattern, wherein subframe is to emit the subframe used when the first pattern.
Optionally, third notice module is additionally operable to notify the number of the OFDM symbol included by subframe to terminal.
Optionally, third notice module be additionally operable to by the gap size of subcarrier used when emitting the first pattern notify to Terminal.
Optionally, which further includes：Notification unit is used for the information of the second pattern and channel state information pilot tone end The length information of mouth code division multiplexing is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern exists M OFDM symbol is occupied in time domain, the length of channel state information pilot frequency port code division multiplexing is X, and the second pattern is for holding The pattern of the channel state information pilot resources of information carrying channel state information pilot tone, the first pattern wherein, by true by such as under type Fixed first pattern：By the second pattern information with and channel state information pilot frequency port code division multiplexing length X joint instructions Determine the first pattern.
Optionally, the information for the M OFDM symbol that the first pattern is occupied in the time domain by the second pattern is believed with channel status The length X joint instructions for ceasing pilot frequency port code division multiplexing determine.
Optionally, the information of channel state information pilot tone further includes whether the first pattern exists only in an OFDM symbol Information, wherein terminal passes through the second pattern-information, the length X of channel state information pilot frequency port code division multiplexing, the first pattern The information whether existed only in an OFDM symbol determines the first pattern of base station instruction.
According to still another embodiment of the invention, a kind of storage medium is additionally provided, storage medium includes the program of storage, Wherein, the method for executing any of the above-described when program is run.
According to still another embodiment of the invention, a kind of processor is additionally provided, processor is for running program, wherein The method that any of the above-described is executed when program is run.
In embodiments of the present invention, base station determines the information of channel state information pilot tone, wherein channel state information pilot tone Information include at least the number and the first pattern of channel state information pilot frequency port, channel state information pilot frequency port is for sending out Channel state information pilot tone is penetrated, the first pattern is the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, Channel state information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more A constituent element；Base station sends the information of channel state information pilot tone to terminal；Base Transmitter channel state information pilot tone, to The system complexity for solving transmitting channel state information pilot tone in the related technology is high, and is unable to fully the technology using power Problem realizes the technique effect of the channel state information pilot tone of transmission port code division multiplexing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is that a kind of channel state information optionally in operation port code division multiplexing according to the ... of the embodiment of the present invention is led The schematic diagram of the terminal of the transmission method of frequency；
Fig. 2 is the flow of the transmission method of the channel state information pilot tone of port code division multiplexing according to the ... of the embodiment of the present invention Figure；
Fig. 3 is the signal of the transmitting device of the channel state information pilot tone of port code division multiplexing according to the ... of the embodiment of the present invention Figure.
Specific implementation mode
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 not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.
Embodiment 1
The embodiment of the method that the embodiment of the present application one is provided can be in mobile terminal, terminal or similar fortune It calculates and is executed in device.For operating on terminal (terminal i.e. on base station), as shown in Figure 1, computer Terminal may include that (processor 101 can include but is not limited to micro- one or more (one is only shown in Fig. 1) processors 101 The processing unit of processor MCU or programmable logic device FPGA etc.), memory 103 for storing data and for leading to The transmitting device 105 of telecommunication function.It will appreciated by the skilled person that structure shown in FIG. 1 is only to illustrate, it is not right The structure of above-mentioned electronic device causes to limit.
Memory 103 can be used for storing the software program and module of application software, such as the equipment in the embodiment of the present invention The corresponding program instruction/module of control method, processor 101 by operation be stored in the software program in memory 103 with And module realizes above-mentioned method to perform various functions application and data processing.Memory may include that high speed is random Memory may also include nonvolatile memory, such as one or more magnetic storage device, flash memory or other are non-volatile Property solid-state memory.In some instances, memory can further comprise the memory remotely located relative to processor, these Remote memory can pass through network connection to terminal.The example of above-mentioned network includes but not limited to internet, enterprise Intranet, LAN, mobile radio communication and combinations thereof.
Transmitting device is used to receive via a network or transmission data.Above-mentioned network specific example may include calculating The wireless network that the communication providers of machine terminal provide.In an example, transmitting device includes a network adapter (Network Interface Controller, NIC), can be connected with other network equipments by base station so as to interconnection Net is communicated.In an example, transmitting device can be radio frequency (Radio Frequency, RF) module, be used to pass through Wireless mode is communicated with internet.
According to embodiments of the present invention, a kind of transmission method of the channel state information pilot tone of port code division multiplexing is provided Embodiment of the method, it should be noted that step shown in the flowchart of the accompanying drawings can be in the executable finger of such as one group of computer It is executed in the computer system of order, although also, logical order is shown in flow charts, and it in some cases, can be with The steps shown or described are performed in an order that is different from the one herein.
Fig. 2 is the flow of the transmission method of the channel state information pilot tone of port code division multiplexing according to the ... of the embodiment of the present invention Figure, as shown in Fig. 2, this method comprises the following steps：
Step S202, base station determine the information of channel state information pilot tone, wherein the information of channel state information pilot tone is extremely Include the number and the first pattern of channel state information pilot frequency port less, channel state information pilot frequency port is used for launch channel shape State information pilot tone, the first pattern are the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel status Information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more composition members Part；
Step S204, base station send the information of channel state information pilot tone to terminal；
Step S206, Base Transmitter channel state information pilot tone.
By above-described embodiment, base station determines the information of channel state information pilot tone, wherein channel state information pilot tone Information includes at least the number and the first pattern of channel state information pilot frequency port, and channel state information pilot frequency port is for emitting Channel state information pilot tone, the first pattern are the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, letter Channel state information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more Constituent element；Base station sends the information of channel state information pilot tone to terminal；Base Transmitter channel state information pilot tone..To The system complexity for solving transmitting channel state information pilot tone in the related technology is high, and is unable to fully the technology using power Problem realizes the technique effect of the channel state information pilot tone of transmission port code division multiplexing.
Optionally, the executive agent of above-mentioned steps can be base station etc., but not limited to this.
CSI-RS emits on element (RE, Resource element), emits element (RE, the Resource of CSI-RS Element set) is exactly CSI-RS resource pattern.Multiplex mode of the ports CSI-RS on RE includes code division multiplexing, and one The set that group port carries out the occupied RE of code division multiplexing is exactly the pattern of the RE of set of port code division multiplexing.Base station transmission CSI-RS information can know the pattern of the number of the ports CSI-RS and the RE of port code division multiplexing, terminal according to these information It obtains these information and is known that the channel status for measuring how many port, and measured from which type of RE pattern and carry out code point again The channel status of port.
Such as：The number of the ports CSI-RS can be a positive integer, such as can be 1,2,4,8,12,16,24,32 Deng.The pattern of the RE of the ports CSI-RS code division multiplexing can be expressed as occupying Q subcarriers on frequency domain, occupy R in the time domain OFDM symbol is simplified shown as array (Q, R)；Such as occupy the pattern of the RE for the ports the CSI-RS code division multiplexing that RE number is 2 Can be (Q, R)=(2,1), or (Q, R)=(1,2)；Occupy the figure of the RE for the ports the CSI-RS code division multiplexing that RE number is 4 Case can be (Q, R)=(4,1), or (Q, R)=(Isosorbide-5-Nitrae), or (Q, R)=(2,2)；Occupy the CSI-RS that RE number is 8 The pattern of the RE of port code division multiplexing can be (Q, R)=(8,1), or (Q, R)=(1,8), or (Q, R)=(4,2), or Person (Q, R)=(2,4)；Occupy RE number be 16 the ports CSI-RS code division multiplexing RE pattern can for (Q, R)=(16, , or (Q, R)=(1,16), or (Q, R)=(8,2), or (Q, R)=(2,8), or (Q, R)=(4,4) 1).Wherein, Q, R are positive integers.
Optionally, the information of channel state information pilot tone carries out combined coding in the following ways：To channel state information The number of pilot frequency port and the first pattern carry out combined coding；Or, the information in channel state information pilot tone further includes channel shape When the classification of the constituent element of state information pilot resources, to the number of channel state information pilot frequency port, the first pattern and composition The classification of element carries out combined coding.
Optionally, channel state information pilot frequency information further includes the classification of constituent element, channel state information pilot frequency port The length of code division multiplexing, wherein base station send channel state information pilot tone information include to terminal：Base station to terminal by sending out The classification of the constituent element sent and the length of channel state information pilot frequency port code division multiplexing indicate collectively the first pattern；Or, base Standing, it is multiple to be divided by the number of the ports CSI-RS sent to terminal, the classification of constituent element and channel state information pilot frequency port code Length indicates collectively the first pattern.
Optionally, constituent element occupies Y subcarrier on frequency domain, occupies Z OFDM symbol, channel status in the time domain The length of information pilot frequency port code division multiplexing is X, and X, Y and Z are positive integer, wherein the first pattern determines in the following manner： In the case that Y is more than Z, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain；It is less than Z in Y In the case of, the first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain；The case where Y is equal to Z Under, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol or the first pattern in the time domain accounts on frequency domain With 1 subcarrier, X OFDM symbol is occupied in the time domain.
Optionally, the second pattern occupies L subcarrier on frequency domain, and the second pattern occupies M OFDM symbol in the time domain, The number of channel state information pilot frequency port is N, and the length of channel state information pilot frequency port code division multiplexing is X, the second pattern For the pattern of the channel state information pilot resources for Bearer Channel status information pilot tone, wherein be determined as follows First pattern：The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take most The function being worth greatly；The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are just whole Number.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：Base station is by two in multiple information A notice is to terminal, to indicate the first pattern by two information of notice, wherein two information of notice are compiled using joint Code, multiple information include the R OFDM that the first pattern the Q subcarrier, the first pattern that are occupied on frequency domain occupy in the time domain The length X of symbol and channel state information pilot frequency port code division multiplexing.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：The first pattern is crossed in base station The number of constituent element is notified to terminal.
Optionally, discontinuous in the position of the RE of the first pattern port code division multiplexing, in the following way really Fixed first pattern：Multiple RE are connected according to the current Ubiety of multiple RE, multiple RE after being connected are formed The first pattern.
Optionally, the information of base station transmission channel state information pilot tone includes to terminal：Base station notifies the classification of subframe To terminal, to indicate the first pattern by the classification of subframe, wherein subframe is to emit the subframe used when the first pattern.
Optionally, base station the classification of subframe is notified include to terminal：Base station is by the number of the OFDM symbol included by subframe Mesh is notified to terminal.
Optionally, base station the classification of subframe is notified include to terminal：Base station carries the son used when emitting the first pattern The gap size of wave is notified to terminal.
Optionally, this method further includes：Base station is multiple by the information of the second pattern and channel state information pilot frequency port code point Length information is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern accounts in the time domain Length with M OFDM symbol, channel state information pilot frequency port code division multiplexing is X, and the second pattern is for Bearer Channel shape The pattern of the channel state information pilot resources of state information pilot tone, the first pattern wherein, by determining the first figure by such as under type Case：By the second pattern information with and the joint instructions of length X of channel state information pilot frequency port code division multiplexing determine first Pattern.
Optionally, the information for the M OFDM symbol that the first pattern is occupied in the time domain by the second pattern is believed with channel status The length X joint instructions for ceasing pilot frequency port code division multiplexing determine.
Optionally, the information of channel state information pilot tone further includes whether the first pattern exists only in an OFDM symbol Information, wherein terminal passes through the second pattern-information, the length X of channel state information pilot frequency port code division multiplexing, the first pattern The information whether existed only in an OFDM symbol determines the first pattern of base station instruction.
One optional embodiment of the present embodiment is：Combined coding is carried out one of in the following ways：The end of CSI-RS Mouthful number, the ports CSI-RS code division multiplexing RE pattern combined coding；CSI-RS information further includes：The classification of constituent element, Wherein the port number of CSI-RS, the pattern combined coding of RE of the ports CSI-RS code division multiplexing, the classification of constituent element are combined Coding；CSI-RS resource pattern is the set for the element (RE, Resource element) for emitting CSI-RS, is made of element. Element is the set of RE.
Different CSI-RS port numbers may use the pattern of the RE of the ports CSI-RS code division multiplexing independent, that is, centainly The corresponding possible ports the CSI-RS code division multiplexing of CSI-RS port numbers RE pattern have correlation, so CSI- The pattern of RS port numbers and the RE of the ports CSI-RS code division multiplexing, which carry out combined coding, can save signaling overheads；CSI-RS's There is correlation, institute between port number, the pattern combined coding of RE of the ports CSI-RS code division multiplexing, the classification of constituent element Combined with the classification of the port number of CSI-RS, the pattern combined coding of the RE of the ports CSI-RS code division multiplexing, constituent element and is compiled Code can save signaling overheads.
Such as：CSI-RS port numbers have M2 classes, the pattern of the RE of the ports CSI-RS code division multiplexing to have N2 classes, practical CSI- The assembled state of RS port numbers and the pattern of the RE of the ports CSI-RS code division multiplexing has L2, is referred to using X2 serial number or state Show the pattern or X2=L2 of the corresponding CSI-RS port numbers of CSI-RS resource and the RE of the ports CSI-RS code division multiplexing；Or Person L2<X2<M2*N2, wherein symbol " * " represents multiplying.
Another optional embodiment of the present embodiment is：CSI-RS information further includes：The classification of constituent element, CSI-RS The length of port code division multiplexing；Wherein, the pattern of the RE of the ports CSI-RS code division multiplexing is indicated by one of following manner：By forming The classification of element, the length of the ports CSI-RS code division multiplexing indicate collectively；By the class of the port number of CSI-RS, constituent element Not, the length of the ports CSI-RS code division multiplexing indicates collectively.
The number that the pattern of the RE of the ports CSI-RS code division multiplexing occupies RE is exactly the length of the ports CSI-RS code division multiplexing. The classification of constituent element combination defines the figure of the RE of the ports CSI-RS code division multiplexing with the length of the ports CSI-RS code division multiplexing Case, so indicating collectively the ports CSI-RS code division multiplexing by the length of the classification of constituent element, the ports CSI-RS code division multiplexing The pattern of RE can save signaling overheads.The port number of CSI-RS, the classification of constituent element, the ports CSI-RS code division multiplexings Length combination defines the pattern of the RE of the ports CSI-RS code division multiplexing, so by the port number of CSI-RS, constituent element Classification, the length of the ports CSI-RS code division multiplexing indicate collectively that the pattern of the RE of the ports CSI-RS code division multiplexing can save signaling Expense.
Such as：Area is carried out according to element the number of sub carrier wave Y contained by frequency domain and the OFDM symbol number Z contained by time domain Point, such as shown differentiation mode：(Y, Z)=(2,1), (Y, Z)=(1,2), (Y, Z)=(4,1), (Y, Z)=(2,2), (Y, Z) =(1,4), (Y, Z)=(8,1), (Y, Z)=(2,4), (Y, Z)=(1,8), (Y, Z)=(4,2).
Element class is (Y, Z)=(2,1), and port code division multiplexing length is 2, indicates the pattern of the RE of port code division multiplexing (Q, R)=(2,1)；Or element class is (Y, Z)=(1,2), port code division multiplexing length is 2, indicates port code division multiplexing RE pattern (Q, R)=(1,2)；Or element class is (Y, Z)=(4,1), port code division multiplexing length is 2, indication end Pattern (Q, R)=(2,1) of the RE of mouth code division multiplexing；Or element class is (Y, Z)=(1,4), port code division multiplexing length It is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing；Or element class is (Y, Z)=(2,2), port code It is 2 to divide multiplexing length, indicates pattern (Q, R)=(2,1) of the RE of port code division multiplexing；Element class is (Y, Z)=(2,2), Port code division multiplexing length is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing；Element class be (Y, Z)= (4,1), port code division multiplexing length are 4, indicate pattern (Q, R)=(4,1) of the RE of port code division multiplexing；Or element class For (Y, Z)=(Isosorbide-5-Nitrae), port code division multiplexing length is 4, indicates pattern (Q, R)=(Isosorbide-5-Nitrae) of the RE of port code division multiplexing.
For another example port number is 2, element class is (Y, Z)=(2,1), and port code division multiplexing length is 2, indication end Pattern (Q, R)=(2,1) of the RE of mouth code division multiplexing；Or port number is 4, element class is (Y, Z)=(2,1), port Code division multiplexing length is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing.
Another optional embodiment of the present embodiment is：Constituent element occupies Y subcarrier on frequency domain, when or on Z OFDM symbol is occupied, the length of the ports CSI-RS code division multiplexing is X；The pattern of the RE of the ports CSI-RS code division multiplexing by with Under type indicates：In the case that Y is more than Z, the pattern of the RE of the ports CSI-RS code division multiplexing occupies X subcarriers on frequency domain, 1 OFDM symbol is occupied in time domain；In the case that Y is less than Z, the pattern of the RE of the ports CSI-RS code division multiplexing occupies on frequency domain 1 subcarrier occupies X OFDM symbol in the time domain；In the length letter for obtaining element class and the ports CSI-RS code division multiplexing It, can be with by the pattern of element class and the RE of the Length Indication port code division multiplexing of the ports CSI-RS code division multiplexing in the case of breath Signaling overheads is saved, and the size of Y and Z has also indicated out the direction of channel variation speed, so determined according to this programme The pattern of the RE of port code division multiplexing can also improve the performance of channel status estimation.
Such as：Element is (Y, Z)=(2,1), and the length of the ports CSI-RS code division multiplexing is X=2, the ports instruction CSI-RS The pattern of the RE of code division multiplexing is (Q, R)=(2,1)；Element is (Y, Z)=(1,2), the length of the ports CSI-RS code division multiplexing Pattern for X=2, the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(1,2)；Alternatively, element be (Y, Z)=(4, 1), the length of the ports CSI-RS code division multiplexing is X=2, the pattern of the RE of instruction CSI-RS ports code division multiplexing be (Q, R)= (2,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), and the length of the ports CSI-RS code division multiplexing is X=2, and the ports instruction CSI-RS code point is multiple The pattern of RE is (Q, R)=(1,2)；Alternatively, element is (Y, Z)=(4,1), the length of the ports CSI-RS code division multiplexing is The pattern of the RE of the port X=4, instruction CSI-RS code division multiplexing is (Q, R)=(4,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), CSI-RS The length of port code division multiplexing is X=4, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Alternatively, Element is (Y, Z)=(4,1), and the length of the ports CSI-RS code division multiplexing is X=4, the RE of the ports instruction CSI-RS code division multiplexing Pattern be (Q, R)=(4,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), and the length of the ports CSI-RS code division multiplexing is X=4, instruction The pattern of the RE of the ports CSI-RS code division multiplexing is (Q, R)=(1,4)；Alternatively, element is (Y, Z)=(4,2), the ports CSI-RS The length of code division multiplexing is X=2, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(2,1)；Element be (Y, Z the length of)=(2,4), the ports CSI-RS code division multiplexing is X=2, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(1,2)；Alternatively, element is (Y, Z)=(4,2), the length of the ports CSI-RS code division multiplexing is X=4, indicates CSI- The pattern of the RE of the ports RS code division multiplexing is (Q, R)=(4,1)；Element is (Y, Z)=(2,4), the ports CSI-RS code division multiplexing Length be X=4, the pattern of the RE of instruction CSI-RS ports code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Alternatively, element is (Y, Z) =(4,2), the length of the ports CSI-RS code division multiplexing are X=4, the pattern of the RE of the ports instruction CSI-RS code division multiplexing be (Q, R)=(4,1)；Element is (Y, Z)=(2,4), and the length of the ports CSI-RS code division multiplexing is X=4, the ports instruction CSI-RS code It is (Q, R)=(1,4) to divide the pattern of the RE of multiplexing.
Another optional embodiment of the present embodiment is：The port number of CSI-RS is N, and the resource pattern of CSI-RS exists Frequency occupies L subcarrier, occupies M OFDM symbol in time domain, the length of the ports CSI-RS code division multiplexing is X；The ends CSI-RS The pattern of the RE of mouth code division multiplexing is indicated by following manner：The pattern of the RE of the ports CSI-RS code division multiplexing occupies Q on frequency domain Subcarrier occupies R OFDM symbol in the time domain, wherein：Q=max (L*X/N, 1), R=X/Q.Max () expressions take larger Element；L, M, N, X, Q, R are positive integer.
By information " port number of CSI-RS is N, and the resource pattern of CSI-RS occupies L subcarrier in frequency, when Domain occupies M OFDM symbol, and the length of the ports CSI-RS code division multiplexing is the figure for the RE that X " indicates the ports CSI-RS code division multiplexing Case can save signaling overheads, and can make full use of the power of the ports CSI-RS.
Such as：For example, the port number of CSI-RS is N=2, the resource pattern of CSI-RS is (L, M)=(2,1), port Pattern (Q, R)=(2,1) of the RE of the port the length X=2 of code division multiplexing, instruction CSI-RS code division multiplexing；Alternatively, CSI-RS Port number is N=2, and the resource pattern of CSI-RS is (L, M)=(1,2), and the length X=2 of port code division multiplexing indicates CSI- Pattern (Q, R)=(1,2) of the RE of the ports RS code division multiplexing.
For another example the port number of CSI-RS is N=4, the resource pattern of CSI-RS is (L, M)=(4,1), port code point Pattern (Q, R)=(2,1) of the RE of the port the length X=2 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=4, and the resource pattern of CSI-RS is (L, M)=(Isosorbide-5-Nitrae), the length X=2 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,2) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=4, the resource pattern of CSI-RS For (L, M)=(2,2), the pattern (Q, R) of the length X=2 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (1,2)。
For another example the port number of CSI-RS is N=4, the resource pattern of CSI-RS is (L, M)=(4,1), port code point Pattern (Q, R)=(4,1) of the RE of the port the length X=4 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=4, and the resource pattern of CSI-RS is (L, M)=(Isosorbide-5-Nitrae), the length X=4 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,4) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=4, the resource pattern of CSI-RS For (L, M)=(2,2), the pattern (Q, R) of the length X=4 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (2,2)。
For another example the port number of CSI-RS is N=8, the resource pattern of CSI-RS is (L, M)=(4,2), port code point Pattern (Q, R)=(1,2) of the RE of the port the length X=2 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=8, and the resource pattern of CSI-RS is (L, M)=(2,4), the length X=2 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,2) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=8, the resource pattern of CSI-RS For (L, M)=(4,2), the pattern (Q, R) of the length X=4 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (2,2)；Alternatively, the port number of CSI-RS is N=8, the resource pattern of CSI-RS is (L, M)=(2,4), port code division multiplexing Length X=4, pattern (Q, R)=(1,4) of the RE of instruction CSI-RS ports code division multiplexing.
One optional embodiment of the present embodiment is：The ports instruction terminal CSI-RS code point is multiple in the following ways for base station The pattern-information of RE：Notify two in following information：The pattern of the RE of the ports CSI-RS code division multiplexing accounts on frequency domain R OFDM symbol, the ports CSI-RS code are being occupied in the time domain with the pattern of Q subcarriers, the RE of the ports CSI-RS code division multiplexing It is X to divide the length of multiplexing；Also, two information notified carry out combined coding.
Two progress combined codings in these three parameters of Q, R, Z, and notified.
Such as：It notifies (Q, R), and combined coding；Or it notifies (Q, X) and carries out combined coding；Or notice (R, X) is simultaneously Carry out combined coding.
One optional embodiment of the present embodiment is：Base station notifies the ports terminal CSI-RS code point multiple in the following ways The pattern-information of RE：The number for the constituent element that the pattern of the RE of the ports CSI-RS code division multiplexing is crossed over.
The information of the number for the constituent element crossed over the pattern of the RE of the ports CSI-RS code division multiplexing indicates the ends CSI-RS The pattern of the RE of mouth code division multiplexing can save signaling overheads, and indicate the tightness degree between element.
For example, notify the pattern of the RE of the ports CSI-RS code division multiplexing whether in an element, or notice CSI-RS The pattern of the RE of port code division multiplexing crosses over 1 element either 2 elements or 4 elements.
One optional embodiment of the present embodiment is：In the case of constituent element position is discontinuous, the ports CSI-RS code point The pattern of the RE of multiplexing obtains using the following method：Exclude the gap between constituent element, then the continuous constituent element feelings of opsition dependent The pattern of the RE of the ports CSI-RS code division multiplexing under condition obtains.
The pattern of the RE of the ports CSI-RS code division multiplexing behind the gap between excluding element with continuous elements situation Under the ports CSI-RS code division multiplexing RE pattern it is identical.The application provide constituent element position it is discontinuous in the case of, really Determine the method for the pattern of the RE of the ports CSI-RS code division multiplexing.
Such as：Multiple (Y, Z) elements have gap, the pattern of the RE of the ports CSI-RS code division multiplexing excluding on frequency domain The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical behind gap and on frequency domain； Or multiple (Y, Z) elements have a gap in the time domain, the pattern of the RE of the ports CSI-RS code division multiplexing after excluding gap with The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical in time domain；Or it is multiple (Y, Z) element has a gap in frequency domain and time domain, the pattern of the RE of the ports CSI-RS code division multiplexing after excluding gap and The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical on frequency domain and time domain.
One optional embodiment of the present embodiment is：Base station notifies the classification of subframe, the ports CSI-RS code division multiplexing The pattern of RE is indicated by subframe classification.
Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads by subframe classification information.
Such as：By the OFDM symbol number instruction occupied by subframe control channel, or by it is contained small-sized in subframe when The number of gap indicates, or is indicated by the ratio of uplink and downlink timeslot.
One optional embodiment of the present embodiment is：The pattern of the RE of the ports CSI-RS code division multiplexing includes by subframe OFDM symbol number indicates；The OFDM symbol number that the pattern of the RE of the ports CSI-RS code division multiplexing includes with subframe has relevance, Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads by OFDM symbol number.
Such as OFDM symbol number is 1, indicates frequency domain code division multiplexing；Or OFDM symbol number is less than or equal to 2, indicates frequency domain code Divide multiplexing；Alternatively, OFDM symbol number is equal to 4, time domain code division multiplexing is indicated；Alternatively, OFDM symbol number is more than or equal to 4, when instruction Domain code division multiplexing；Alternatively, OFDM symbol number is located at certain section, time-domain and frequency-domain code division multiplexing is indicated.
For another example OFDM symbol number is a certain particular value, the pattern of code division multiplexing is (Q, R)=(X, 1)；Or OFDM symbols Number is a certain particular value, and the pattern of code division multiplexing is (Q, R)=(1, X)；Or OFDM symbol number is a certain specific range of values, The pattern of code division multiplexing is (Q, R)=(X, 1)；Or OFDM symbol number is a certain specific range of values, the pattern of code division multiplexing is (Q, R)=(1, X)；Or OFDM symbol number is a certain particular value, the pattern of code division multiplexing is (Q, R)=(X/2,2)；Or OFDM symbol number is a certain particular value, and the pattern of code division multiplexing is (Q, R)=(2, X/2)；Or OFDM symbol number is a certain spy The pattern of limits, code division multiplexing is (Q, R)=(X/2,2)；Or OFDM symbol number is a certain specific range of values, code point is multiple Pattern is (Q, R)=(2, X/2).
One optional embodiment of the present embodiment is：The pattern of the RE of the ports CSI-RS code division multiplexing is by subcarrier spacing Classification indicates.
The pattern property relevant with subcarrier spacing classification of the RE of the ports CSI-RS code division multiplexing, by subcarrier spacing classification Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads.
Such as：Intercarrier is divided into a certain particular value, and the pattern of code division multiplexing is (Q, R)=(X, 1)；Or intercarrier is divided into The pattern of a certain particular value, code division multiplexing is (Q, R)=(1, X)；Or intercarrier is divided into a certain specific range of values, code division multiplexing Pattern be (Q, R)=(X, 1)；Or intercarrier is divided into a certain specific range of values, the pattern of code division multiplexing be (Q, R)=(1, X)；Or intercarrier is divided into a certain particular value, the pattern of code division multiplexing is (Q, R)=(X/2,2)；Or intercarrier be divided into it is a certain The pattern of particular value, code division multiplexing is (Q, R)=(2, X/2)；Or intercarrier is divided into a certain specific range of values, code division multiplexing Pattern is (Q, R)=(X/2,2)；Or intercarrier is divided into a certain specific range of values, the pattern of code division multiplexing be (Q, R)=(2, X/2)。
One optional embodiment of the present embodiment is：Base station is by the information of the second pattern and channel state information pilot tone end The length information of mouth code division multiplexing is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern exists M OFDM symbol is occupied in time domain, the length of channel state information pilot frequency port code division multiplexing is X, and the second pattern is for holding The pattern of the channel state information pilot resources of information carrying channel state information pilot tone, the first pattern wherein, by true by such as under type Fixed first pattern：By the second pattern information with and channel state information pilot frequency port code division multiplexing length X joint instructions Determine the first pattern.
In the length for determining channel state information pilot frequency port code division multiplexing, a kind of channel state information pilot tone money If the pattern of the resource unit RE of the corresponding a variety of channel state information pilot frequency port code division multiplexings of the pattern in source, can increase system Complexity.The pattern and channel state information pilot frequency port code division multiplexing that the present invention passes through channel state information pilot resources Length joint determines the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, reduces the complexity of system Degree, puies forward high-power utilization rate.
For example, code division multiplexing length is 2, and pattern (L, M)=(4,2) of channel state information pilot resources, determining code It is (Q, R)=(1,2) to divide the pattern of multiplexing；Or code division multiplexing length is 2, the patterns of channel state information pilot resources (L, M the pattern of)=(2,4), determining code division multiplexing is (Q, R)=(1,2)；For another example code division multiplexing length is 4, channel status The pattern of pattern (L, M)=(4,4) of information pilot resources, determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code point is multiple It is 8 with length, the pattern of pattern (L, M)=(8,4) of channel state information pilot resources, determining code division multiplexing is (Q, R) =(2,4).
One optional embodiment of the present embodiment is：The M OFDM that first pattern is occupied in the time domain by the second pattern The information of symbol is determined with the length X joint instructions of channel state information pilot frequency port code division multiplexing.
The time domain length M and channel state information pilot frequency port that the present invention passes through the pattern of channel state information pilot resources The length joint of code division multiplexing determines the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, reduces and is The complexity of system improves power utilization.
For example, code division multiplexing length is 2, and the pattern time domain length M=2 of channel state information pilot resources, determining code It is (Q, R)=(1,2) to divide the pattern of multiplexing；Or code division multiplexing length is 2, the pattern time domain of channel state information pilot resources The pattern of length M=4, determining code division multiplexing are (Q, R)=(1,2)；For another example code division multiplexing length is 4, channel status letter The pattern time domain length M=4 of pilot resources is ceased, the pattern of determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code division multiplexing Length is 8, the pattern time domain length M=4 of channel state information pilot resources, the pattern of determining code division multiplexing be (Q, R)= (2,4).
One optional embodiment of the present embodiment is：The information of channel state information pilot tone further include the first pattern whether Exist only in the information in an OFDM symbol, wherein terminal passes through the second pattern-information, channel state information pilot frequency port code The first pattern for dividing the information whether the length X of multiplexing, the first pattern exist only in an OFDM symbol to determine base station instruction.
Under some scenes, the phase change of channel occupies multiple OFDM symbols quickly, in the pattern distribution of code division multiplexing The performance of channel estimation can be reduced；It, both can be with by indicating whether the pattern of code division multiplexing exists only in an OFDM symbol The channel estimating performance under different scenes is improved, and the complexity of system can be reduced, improves power utilization.
For example, whether base station is existed only in by first pattern of bit explicit instruction in an OFDM symbol, or Person indicates whether the first pattern exists only in an OFDM symbol by Phase Tracking pilot tone；The pattern of code division multiplexing is present in One OFDM symbol, the length X of channel state information pilot frequency port code division multiplexing, it indicates that the pattern of code division multiplexing is (Q, R) =(1, X).Or the pattern of code division multiplexing is not only present in an OFDM symbol, by the second pattern-information, channel state information The length X joint instructions of pilot frequency port code division multiplexing, for example, code division multiplexing length is 2, the figure of channel state information pilot resources The pattern of case (L, M)=(4,2), determining code division multiplexing is (Q, R)=(1,2)；Or code division multiplexing length is 2, channel shape The pattern of pattern (L, M)=(2,4) of state information pilot resources, determining code division multiplexing is (Q, R)=(1,2)；For another example code It is 4 to divide multiplexing length, pattern (L, M)=(4,4) of channel state information pilot resources, and the pattern of determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code division multiplexing length is 8, pattern (L, M)=(8,4) of channel state information pilot resources determine Code division multiplexing pattern be (Q, R)=(2,4).
One optional embodiment of the present embodiment is：Indicate whether the first pattern exists only in Phase Tracking pilot tone Information in one OFDM symbol, specially：Phase Tracking pilot tone is if it is present the first pattern of instruction exists only in one OFDM symbol；Phase Tracking pilot tone is if it does not exist, then the first pattern of instruction not exists only in an OFDM symbol.
The presence of Phase Tracking pilot tone can indicate that channel phase variation is very fast, so as to depositing using Phase Tracking pilot tone It is existed only in an OFDM symbol in the first pattern of instruction, to save the expense of signaling.
For example, transmitter phase tracks pilot tone in the radio frames of base station instruction channel state information pilot transmission；Or base station Indicate that transmitter phase tracks pilot tone in the carrier wave of channel state information pilot transmission；Alternatively, base station instruction channel state information is led Frequency is in identical transmitting site location with Phase Tracking pilot tone.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical scheme of the present invention is substantially in other words to existing The part that technology contributes can be expressed in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, calculate Machine, server or network equipment etc.) method that executes each embodiment of the present invention.
Embodiment 2
A kind of transmitting device of the channel state information pilot tone of port code division multiplexing is additionally provided in the embodiment of the present invention.It should Device had carried out repeating no more for explanation for realizing above-described embodiment and preferred embodiment.As used below, The combination of the software and/or hardware of predetermined function may be implemented in term " module ".Although device described in following embodiment compared with It is realized goodly with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 3 is the signal of the transmitting device of the channel state information pilot tone of port code division multiplexing according to the ... of the embodiment of the present invention Figure.As shown in figure 3, the device may include：Determination unit 32, transmission unit 34 and transmitter unit 36.
Determination unit 32, the information for determining channel state information pilot tone, wherein the information of channel state information pilot tone Number including at least channel state information pilot frequency port and the first pattern, channel state information pilot frequency port are used for launch channel Status information pilot tone, the first pattern are the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel shape State information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more form Element；
Transmission unit 34, for sending the information of channel state information pilot tone to terminal；
Transmitter unit 36 is used for launch channel status information pilot tone.
By above-described embodiment, determination unit determines the information of channel state information pilot tone, wherein channel state information is led The information of frequency includes at least the number and the first pattern of channel state information pilot frequency port, and channel state information pilot frequency port is used for Launch channel status information pilot tone, the first pattern are the figure of the resource unit RE of channel state information pilot frequency port code division multiplexing Case, channel state information pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one Or multiple constituent element；Transmission unit sends the information of channel state information pilot tone to terminal；Transmitter unit launch channel state Information pilot tone to solve the system complexity of transmitting channel state information pilot tone in the related technology height, and is unable to fully The technical issues of using power, realizes the technique effect of the channel state information pilot tone of transmission port code division multiplexing.
Optionally, transmission unit carries out combined coding in the following ways to the information of channel state information pilot tone：To letter The number of channel state information pilot frequency port and the first pattern carry out combined coding；Or, channel state information pilot tone information also When the classification of the constituent element including channel state information pilot resources, to the number of channel state information pilot frequency port, first The classification of pattern and constituent element carries out combined coding.
Optionally, channel state information pilot frequency information further includes the classification of constituent element, channel state information pilot frequency port The length of code division multiplexing, wherein transmission unit includes：First sending module, for the constituent element by being sent to terminal Classification and the length of channel state information pilot frequency port code division multiplexing indicate collectively the first pattern；Or, the second sending module, is used for Pass through the number of the ports CSI-RS sent to terminal, the classification of constituent element and channel state information pilot frequency port code division multiplexing Length indicate collectively the first pattern.
Optionally, constituent element occupies Y subcarrier on frequency domain, occupies Z OFDM symbol, channel status in the time domain The length of information pilot frequency port code division multiplexing is X, and X, Y and Z are positive integer, wherein the first pattern determines in the following manner： In the case that Y is more than Z, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain；It is less than Z in Y In the case of, the first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain；The case where Y is equal to Z Under, the first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol or the first pattern in the time domain accounts on frequency domain With 1 subcarrier, X OFDM symbol is occupied in the time domain.
Optionally, the second pattern occupies L subcarrier on frequency domain, and the second pattern occupies M OFDM symbol in the time domain, The number of channel state information pilot frequency port is N, and the length of channel state information pilot frequency port code division multiplexing is X, the second pattern For the pattern of the channel state information pilot resources for Bearer Channel status information pilot tone, wherein be determined as follows First pattern：The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take most The function being worth greatly；The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are just whole Number.
Optionally, transmission unit includes：First notification module, for by two in multiple information notices to terminal, with The first pattern is indicated by two information of notice, wherein two information of notice use combined coding, and multiple information include the The R OFDM symbol and channel state information that Q subcarrier that one pattern occupies on frequency domain, the first pattern occupy in the time domain The length X of pilot frequency port code division multiplexing.
Optionally, transmission unit includes：The number of second notification module, the constituent element for crossing over the first pattern is led to Know to terminal.
Optionally it is determined that unit is discontinuous in the position of the RE of the first pattern port code division multiplexing, by such as Under type determines the first pattern：Multiple RE are connected according to the current Ubiety of multiple RE, it is more after being connected The first pattern that a RE is formed.
Optionally, transmission unit includes：Third notice module, for notifying the classification of subframe to terminal, to pass through son The classification of frame indicates the first pattern, wherein subframe is to emit the subframe used when the first pattern.
Optionally, third notice module is additionally operable to notify the number of the OFDM symbol included by subframe to terminal.
Optionally, third notice module be additionally operable to by the gap size of subcarrier used when emitting the first pattern notify to Terminal.
Optionally, which further includes：Notification unit is used for the information of the second pattern and channel state information pilot tone end The length information of mouth code division multiplexing is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern exists M OFDM symbol is occupied in time domain, the length of channel state information pilot frequency port code division multiplexing is X, and the second pattern is for holding The pattern of the channel state information pilot resources of information carrying channel state information pilot tone, the first pattern wherein, by true by such as under type Fixed first pattern：By the second pattern information with and channel state information pilot frequency port code division multiplexing length X joint instructions Determine the first pattern.
Optionally, the information for the M OFDM symbol that the first pattern is occupied in the time domain by the second pattern is believed with channel status The length X joint instructions for ceasing pilot frequency port code division multiplexing determine.
Optionally, the information of channel state information pilot tone further includes whether the first pattern exists only in an OFDM symbol Information, wherein terminal passes through the second pattern-information, the length X of channel state information pilot frequency port code division multiplexing, the first pattern The information whether existed only in an OFDM symbol determines the first pattern of base station instruction.
One optional embodiment of the present embodiment is：Combined coding is carried out one of in the following ways：The end of CSI-RS Mouthful number, the ports CSI-RS code division multiplexing RE pattern combined coding；CSI-RS information further includes：The classification of constituent element, Wherein the port number of CSI-RS, the pattern combined coding of RE of the ports CSI-RS code division multiplexing, the classification of constituent element are combined Coding；CSI-RS resource pattern is the set for the element (RE, Resource element) for emitting CSI-RS, is made of element. Element is the set of RE.
Different CSI-RS port numbers may use the pattern of the RE of the ports CSI-RS code division multiplexing independent, that is, centainly The corresponding possible ports the CSI-RS code division multiplexing of CSI-RS port numbers RE pattern have correlation, so CSI- The pattern of RS port numbers and the RE of the ports CSI-RS code division multiplexing, which carry out combined coding, can save signaling overheads；CSI-RS's There is correlation, institute between port number, the pattern combined coding of RE of the ports CSI-RS code division multiplexing, the classification of constituent element Combined with the classification of the port number of CSI-RS, the pattern combined coding of the RE of the ports CSI-RS code division multiplexing, constituent element and is compiled Code can save signaling overheads.
Such as：CSI-RS port numbers have M2 classes, the pattern of the RE of the ports CSI-RS code division multiplexing to have N2 classes, practical CSI- The assembled state of RS port numbers and the pattern of the RE of the ports CSI-RS code division multiplexing has L2, is referred to using X2 serial number or state Show the pattern or X2=L2 of the corresponding CSI-RS port numbers of CSI-RS resource and the RE of the ports CSI-RS code division multiplexing；Or Person L2<X2<M2*N2, wherein symbol " * " represents multiplying.
Another optional embodiment of the present embodiment is：CSI-RS information further includes：The classification of constituent element, CSI-RS The length of port code division multiplexing；Wherein, the pattern of the RE of the ports CSI-RS code division multiplexing is indicated by one of following manner：By forming The classification of element, the length of the ports CSI-RS code division multiplexing indicate collectively；By the class of the port number of CSI-RS, constituent element Not, the length of the ports CSI-RS code division multiplexing indicates collectively.
The number that the pattern of the RE of the ports CSI-RS code division multiplexing occupies RE is exactly the length of the ports CSI-RS code division multiplexing. The classification of constituent element combination defines the figure of the RE of the ports CSI-RS code division multiplexing with the length of the ports CSI-RS code division multiplexing Case, so indicating collectively the ports CSI-RS code division multiplexing by the length of the classification of constituent element, the ports CSI-RS code division multiplexing The pattern of RE can save signaling overheads.The port number of CSI-RS, the classification of constituent element, the ports CSI-RS code division multiplexings Length combination defines the pattern of the RE of the ports CSI-RS code division multiplexing, so by the port number of CSI-RS, constituent element Classification, the length of the ports CSI-RS code division multiplexing indicate collectively that the pattern of the RE of the ports CSI-RS code division multiplexing can save signaling Expense.
Such as：Area is carried out according to element the number of sub carrier wave Y contained by frequency domain and the OFDM symbol number Z contained by time domain Point, such as shown differentiation mode：(Y, Z)=(2,1), (Y, Z)=(1,2), (Y, Z)=(4,1), (Y, Z)=(2,2), (Y, Z) =(1,4), (Y, Z)=(8,1), (Y, Z)=(2,4), (Y, Z)=(1,8), (Y, Z)=(4,2).
Element class is (Y, Z)=(2,1), and port code division multiplexing length is 2, indicates the pattern of the RE of port code division multiplexing (Q, R)=(2,1)；Or element class is (Y, Z)=(1,2), port code division multiplexing length is 2, indicates port code division multiplexing RE pattern (Q, R)=(1,2)；Or element class is (Y, Z)=(4,1), port code division multiplexing length is 2, indication end Pattern (Q, R)=(2,1) of the RE of mouth code division multiplexing；Or element class is (Y, Z)=(1,4), port code division multiplexing length It is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing；Or element class is (Y, Z)=(2,2), port code It is 2 to divide multiplexing length, indicates pattern (Q, R)=(2,1) of the RE of port code division multiplexing；Element class is (Y, Z)=(2,2), Port code division multiplexing length is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing；Element class be (Y, Z)= (4,1), port code division multiplexing length are 4, indicate pattern (Q, R)=(4,1) of the RE of port code division multiplexing；Or element class For (Y, Z)=(Isosorbide-5-Nitrae), port code division multiplexing length is 4, indicates pattern (Q, R)=(Isosorbide-5-Nitrae) of the RE of port code division multiplexing.
For another example port number is 2, element class is (Y, Z)=(2,1), and port code division multiplexing length is 2, indication end Pattern (Q, R)=(2,1) of the RE of mouth code division multiplexing；Or port number is 4, element class is (Y, Z)=(2,1), port Code division multiplexing length is 2, indicates pattern (Q, R)=(1,2) of the RE of port code division multiplexing.
Another optional embodiment of the present embodiment is：Constituent element occupies Y subcarrier on frequency domain, when or on Z OFDM symbol is occupied, the length of the ports CSI-RS code division multiplexing is X；The pattern of the RE of the ports CSI-RS code division multiplexing by with Under type indicates：In the case that Y is more than Z, the pattern of the RE of the ports CSI-RS code division multiplexing occupies X subcarriers on frequency domain, 1 OFDM symbol is occupied in time domain；In the case that Y is less than Z, the pattern of the RE of the ports CSI-RS code division multiplexing occupies on frequency domain 1 subcarrier occupies X OFDM symbol in the time domain；In the length letter for obtaining element class and the ports CSI-RS code division multiplexing It, can be with by the pattern of element class and the RE of the Length Indication port code division multiplexing of the ports CSI-RS code division multiplexing in the case of breath Signaling overheads is saved, and the size of Y and Z has also indicated out the direction of channel variation speed, so determined according to this programme The pattern of the RE of port code division multiplexing can also improve the performance of channel status estimation.
Such as：Element is (Y, Z)=(2,1), and the length of the ports CSI-RS code division multiplexing is X=2, the ports instruction CSI-RS The pattern of the RE of code division multiplexing is (Q, R)=(2,1)；Element is (Y, Z)=(1,2), the length of the ports CSI-RS code division multiplexing Pattern for X=2, the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(1,2)；Alternatively, element be (Y, Z)=(4, 1), the length of the ports CSI-RS code division multiplexing is X=2, the pattern of the RE of instruction CSI-RS ports code division multiplexing be (Q, R)= (2,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), and the length of the ports CSI-RS code division multiplexing is X=2, and the ports instruction CSI-RS code point is multiple The pattern of RE is (Q, R)=(1,2)；Alternatively, element is (Y, Z)=(4,1), the length of the ports CSI-RS code division multiplexing is The pattern of the RE of the port X=4, instruction CSI-RS code division multiplexing is (Q, R)=(4,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), CSI-RS The length of port code division multiplexing is X=4, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Alternatively, Element is (Y, Z)=(4,1), and the length of the ports CSI-RS code division multiplexing is X=4, the RE of the ports instruction CSI-RS code division multiplexing Pattern be (Q, R)=(4,1)；Element is (Y, Z)=(Isosorbide-5-Nitrae), and the length of the ports CSI-RS code division multiplexing is X=4, instruction The pattern of the RE of the ports CSI-RS code division multiplexing is (Q, R)=(1,4)；Alternatively, element is (Y, Z)=(4,2), the ports CSI-RS The length of code division multiplexing is X=2, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(2,1)；Element be (Y, Z the length of)=(2,4), the ports CSI-RS code division multiplexing is X=2, and the pattern of the RE of the ports instruction CSI-RS code division multiplexing is (Q, R)=(1,2)；Alternatively, element is (Y, Z)=(4,2), the length of the ports CSI-RS code division multiplexing is X=4, indicates CSI- The pattern of the RE of the ports RS code division multiplexing is (Q, R)=(4,1)；Element is (Y, Z)=(2,4), the ports CSI-RS code division multiplexing Length be X=4, the pattern of the RE of instruction CSI-RS ports code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Alternatively, element is (Y, Z) =(4,2), the length of the ports CSI-RS code division multiplexing are X=4, the pattern of the RE of the ports instruction CSI-RS code division multiplexing be (Q, R)=(4,1)；Element is (Y, Z)=(2,4), and the length of the ports CSI-RS code division multiplexing is X=4, the ports instruction CSI-RS code It is (Q, R)=(1,4) to divide the pattern of the RE of multiplexing.
Another optional embodiment of the present embodiment is：The port number of CSI-RS is N, and the resource pattern of CSI-RS exists Frequency occupies L subcarrier, occupies M OFDM symbol in time domain, the length of the ports CSI-RS code division multiplexing is X；The ends CSI-RS The pattern of the RE of mouth code division multiplexing is indicated by following manner：The pattern of the RE of the ports CSI-RS code division multiplexing occupies Q on frequency domain Subcarrier occupies R OFDM symbol in the time domain, wherein：Q=max (L*X/N, 1), R=X/Q.Max () expressions take larger Element；L, M, N, X, Q, R are positive integer.
By information " port number of CSI-RS is N, and the resource pattern of CSI-RS occupies L subcarrier in frequency, when Domain occupies M OFDM symbol, and the length of the ports CSI-RS code division multiplexing is the figure for the RE that X " indicates the ports CSI-RS code division multiplexing Case can save signaling overheads, and can make full use of the power of the ports CSI-RS.
Such as：For example, the port number of CSI-RS is N=2, the resource pattern of CSI-RS is (L, M)=(2,1), port Pattern (Q, R)=(2,1) of the RE of the port the length X=2 of code division multiplexing, instruction CSI-RS code division multiplexing；Alternatively, CSI-RS Port number is N=2, and the resource pattern of CSI-RS is (L, M)=(1,2), and the length X=2 of port code division multiplexing indicates CSI- Pattern (Q, R)=(1,2) of the RE of the ports RS code division multiplexing.
For another example the port number of CSI-RS is N=4, the resource pattern of CSI-RS is (L, M)=(4,1), port code point Pattern (Q, R)=(2,1) of the RE of the port the length X=2 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=4, and the resource pattern of CSI-RS is (L, M)=(Isosorbide-5-Nitrae), the length X=2 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,2) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=4, the resource pattern of CSI-RS For (L, M)=(2,2), the pattern (Q, R) of the length X=2 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (1,2)。
For another example the port number of CSI-RS is N=4, the resource pattern of CSI-RS is (L, M)=(4,1), port code point Pattern (Q, R)=(4,1) of the RE of the port the length X=4 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=4, and the resource pattern of CSI-RS is (L, M)=(Isosorbide-5-Nitrae), the length X=4 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,4) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=4, the resource pattern of CSI-RS For (L, M)=(2,2), the pattern (Q, R) of the length X=4 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (2,2)。
For another example the port number of CSI-RS is N=8, the resource pattern of CSI-RS is (L, M)=(4,2), port code point Pattern (Q, R)=(1,2) of the RE of the port the length X=2 of multiplexing, instruction CSI-RS code division multiplexing；Alternatively, the port of CSI-RS Number is N=8, and the resource pattern of CSI-RS is (L, M)=(2,4), the length X=2 of port code division multiplexing, the ends instruction CSI-RS Pattern (Q, R)=(1,2) of the RE of mouth code division multiplexing；Alternatively, the port number of CSI-RS is N=8, the resource pattern of CSI-RS For (L, M)=(4,2), the pattern (Q, R) of the length X=4 of port code division multiplexing, the RE of the ports instruction CSI-RS code division multiplexing= (2,2)；Alternatively, the port number of CSI-RS is N=8, the resource pattern of CSI-RS is (L, M)=(2,4), port code division multiplexing Length X=4, pattern (Q, R)=(1,4) of the RE of instruction CSI-RS ports code division multiplexing.
One optional embodiment of the present embodiment is：The ports instruction terminal CSI-RS code point is multiple in the following ways for base station The pattern-information of RE：Notify two in following information：The pattern of the RE of the ports CSI-RS code division multiplexing accounts on frequency domain R OFDM symbol, the ports CSI-RS code are being occupied in the time domain with the pattern of Q subcarriers, the RE of the ports CSI-RS code division multiplexing It is X to divide the length of multiplexing；Also, two information notified carry out combined coding.
Two progress combined codings in these three parameters of Q, R, Z, and notified.
Such as：It notifies (Q, R), and combined coding；Or it notifies (Q, X) and carries out combined coding；Or notice (R, X) is simultaneously Carry out combined coding.
One optional embodiment of the present embodiment is：Base station notifies the ports terminal CSI-RS code point multiple in the following ways The pattern-information of RE：The number for the constituent element that the pattern of the RE of the ports CSI-RS code division multiplexing is crossed over.
The information of the number for the constituent element crossed over the pattern of the RE of the ports CSI-RS code division multiplexing indicates the ends CSI-RS The pattern of the RE of mouth code division multiplexing can save signaling overheads, and indicate the tightness degree between element.
For example, notify the pattern of the RE of the ports CSI-RS code division multiplexing whether in an element, or notice CSI-RS The pattern of the RE of port code division multiplexing crosses over 1 element either 2 elements or 4 elements.
One optional embodiment of the present embodiment is：In the case of constituent element position is discontinuous, the ports CSI-RS code point The pattern of the RE of multiplexing obtains using the following method：Exclude the gap between constituent element, then the continuous constituent element feelings of opsition dependent The pattern of the RE of the ports CSI-RS code division multiplexing under condition obtains.
The pattern of the RE of the ports CSI-RS code division multiplexing behind the gap between excluding element with continuous elements situation Under the ports CSI-RS code division multiplexing RE pattern it is identical.The application provide constituent element position it is discontinuous in the case of, really Determine the method for the pattern of the RE of the ports CSI-RS code division multiplexing.
Such as：Multiple (Y, Z) elements have gap, the pattern of the RE of the ports CSI-RS code division multiplexing excluding on frequency domain The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical behind gap and on frequency domain； Or multiple (Y, Z) elements have a gap in the time domain, the pattern of the RE of the ports CSI-RS code division multiplexing after excluding gap with The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical in time domain；Or it is multiple (Y, Z) element has a gap in frequency domain and time domain, the pattern of the RE of the ports CSI-RS code division multiplexing after excluding gap and The pattern of the RE of the corresponding ports the CSI-RS code division multiplexing of multiple (Y, Z) elements very close to each other is identical on frequency domain and time domain.
One optional embodiment of the present embodiment is：Base station notifies the classification of subframe, the ports CSI-RS code division multiplexing The pattern of RE is indicated by subframe classification.
Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads by subframe classification information.
Such as：By the OFDM symbol number instruction occupied by subframe control channel, or by it is contained small-sized in subframe when The number of gap indicates, or is indicated by the ratio of uplink and downlink timeslot.
One optional embodiment of the present embodiment is：The pattern of the RE of the ports CSI-RS code division multiplexing includes by subframe OFDM symbol number indicates；The OFDM symbol number that the pattern of the RE of the ports CSI-RS code division multiplexing includes with subframe has relevance, Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads by OFDM symbol number.
Such as OFDM symbol number is 1, indicates frequency domain code division multiplexing；Or OFDM symbol number is less than or equal to 2, indicates frequency domain code Divide multiplexing；Alternatively, OFDM symbol number is equal to 4, time domain code division multiplexing is indicated；Alternatively, OFDM symbol number is more than or equal to 4, when instruction Domain code division multiplexing；Alternatively, OFDM symbol number is located at certain section, time-domain and frequency-domain code division multiplexing is indicated.
For another example OFDM symbol number is a certain particular value, the pattern of code division multiplexing is (Q, R)=(X, 1)；Or OFDM symbols Number is a certain particular value, and the pattern of code division multiplexing is (Q, R)=(1, X)；Or OFDM symbol number is a certain specific range of values, The pattern of code division multiplexing is (Q, R)=(X, 1)；Or OFDM symbol number is a certain specific range of values, the pattern of code division multiplexing is (Q, R)=(1, X)；Or OFDM symbol number is a certain particular value, the pattern of code division multiplexing is (Q, R)=(X/2,2)；Or OFDM symbol number is a certain particular value, and the pattern of code division multiplexing is (Q, R)=(2, X/2)；Or OFDM symbol number is a certain spy The pattern of limits, code division multiplexing is (Q, R)=(X/2,2)；Or OFDM symbol number is a certain specific range of values, code point is multiple Pattern is (Q, R)=(2, X/2).
One optional embodiment of the present embodiment is：The pattern of the RE of the ports CSI-RS code division multiplexing is by subcarrier spacing Classification indicates.
The pattern property relevant with subcarrier spacing classification of the RE of the ports CSI-RS code division multiplexing, by subcarrier spacing classification Indicate the pattern of the RE of the ports CSI-RS code division multiplexing to save signaling overheads.
Such as：Intercarrier is divided into a certain particular value, and the pattern of code division multiplexing is (Q, R)=(X, 1)；Or intercarrier is divided into The pattern of a certain particular value, code division multiplexing is (Q, R)=(1, X)；Or intercarrier is divided into a certain specific range of values, code division multiplexing Pattern be (Q, R)=(X, 1)；Or intercarrier is divided into a certain specific range of values, the pattern of code division multiplexing be (Q, R)=(1, X)；Or intercarrier is divided into a certain particular value, the pattern of code division multiplexing is (Q, R)=(X/2,2)；Or intercarrier be divided into it is a certain The pattern of particular value, code division multiplexing is (Q, R)=(2, X/2)；Or intercarrier is divided into a certain specific range of values, code division multiplexing Pattern is (Q, R)=(X/2,2)；Or intercarrier is divided into a certain specific range of values, the pattern of code division multiplexing be (Q, R)=(2, X/2)。
One optional embodiment of the present embodiment is：Base station is by the information of the second pattern and channel state information pilot tone end The length information of mouth code division multiplexing is notified to terminal, wherein the second pattern occupies L subcarrier on frequency domain, and the second pattern exists M OFDM symbol is occupied in time domain, the length of channel state information pilot frequency port code division multiplexing is X, and the second pattern is for holding The pattern of the channel state information pilot resources of information carrying channel state information pilot tone, the first pattern wherein, by true by such as under type Fixed first pattern：By the second pattern information with and channel state information pilot frequency port code division multiplexing length X joint instructions Determine the first pattern.
In the length for determining channel state information pilot frequency port code division multiplexing, a kind of channel state information pilot tone money If the pattern of the resource unit RE of the corresponding a variety of channel state information pilot frequency port code division multiplexings of the pattern in source, can increase system Complexity.The pattern and channel state information pilot frequency port code division multiplexing that the present invention passes through channel state information pilot resources Length joint determines the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, reduces the complexity of system Degree, puies forward high-power utilization rate.
For example, code division multiplexing length is 2, and pattern (L, M)=(4,2) of channel state information pilot resources, determining code It is (Q, R)=(1,2) to divide the pattern of multiplexing；Or code division multiplexing length is 2, the patterns of channel state information pilot resources (L, M the pattern of)=(2,4), determining code division multiplexing is (Q, R)=(1,2)；For another example code division multiplexing length is 4, channel status The pattern of pattern (L, M)=(4,4) of information pilot resources, determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code point is multiple It is 8 with length, the pattern of pattern (L, M)=(8,4) of channel state information pilot resources, determining code division multiplexing is (Q, R) =(2,4).
One optional embodiment of the present embodiment is：The M OFDM that first pattern is occupied in the time domain by the second pattern The information of symbol is determined with the length X joint instructions of channel state information pilot frequency port code division multiplexing.
The time domain length M and channel state information pilot frequency port that the present invention passes through the pattern of channel state information pilot resources The length joint of code division multiplexing determines the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, reduces and is The complexity of system improves power utilization.
For example, code division multiplexing length is 2, and the pattern time domain length M=2 of channel state information pilot resources, determining code It is (Q, R)=(1,2) to divide the pattern of multiplexing；Or code division multiplexing length is 2, the pattern time domain of channel state information pilot resources The pattern of length M=4, determining code division multiplexing are (Q, R)=(1,2)；For another example code division multiplexing length is 4, channel status letter The pattern time domain length M=4 of pilot resources is ceased, the pattern of determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code division multiplexing Length is 8, the pattern time domain length M=4 of channel state information pilot resources, the pattern of determining code division multiplexing be (Q, R)= (2,4).
One optional embodiment of the present embodiment is：The information of channel state information pilot tone further include the first pattern whether Exist only in the information in an OFDM symbol, wherein terminal passes through the second pattern-information, channel state information pilot frequency port code The first pattern for dividing the information whether the length X of multiplexing, the first pattern exist only in an OFDM symbol to determine base station instruction.
Under some scenes, the phase change of channel occupies multiple OFDM symbols quickly, in the pattern distribution of code division multiplexing The performance of channel estimation can be reduced；It, both can be with by indicating whether the pattern of code division multiplexing exists only in an OFDM symbol The channel estimating performance under different scenes is improved, and the complexity of system can be reduced, improves power utilization.
For example, whether base station is existed only in by first pattern of bit explicit instruction in an OFDM symbol, or Person indicates whether the first pattern exists only in an OFDM symbol by Phase Tracking pilot tone；The pattern of code division multiplexing is present in One OFDM symbol, the length X of channel state information pilot frequency port code division multiplexing, it indicates that the pattern of code division multiplexing is (Q, R) =(1, X).Or the pattern of code division multiplexing is not only present in an OFDM symbol, by the second pattern-information, channel state information The length X joint instructions of pilot frequency port code division multiplexing, for example, code division multiplexing length is 2, the figure of channel state information pilot resources The pattern of case (L, M)=(4,2), determining code division multiplexing is (Q, R)=(1,2)；Or code division multiplexing length is 2, channel shape The pattern of pattern (L, M)=(2,4) of state information pilot resources, determining code division multiplexing is (Q, R)=(1,2)；For another example code It is 4 to divide multiplexing length, pattern (L, M)=(4,4) of channel state information pilot resources, and the pattern of determining code division multiplexing is (Q, R)=(Isosorbide-5-Nitrae)；Or code division multiplexing length is 8, pattern (L, M)=(8,4) of channel state information pilot resources determine Code division multiplexing pattern be (Q, R)=(2,4).
One optional embodiment of the present embodiment is：Indicate whether the first pattern exists only in Phase Tracking pilot tone Information in one OFDM symbol, specially：Phase Tracking pilot tone is if it is present the first pattern of instruction exists only in one OFDM symbol；Phase Tracking pilot tone is if it does not exist, then the first pattern of instruction not exists only in an OFDM symbol.
The presence of Phase Tracking pilot tone can indicate that channel phase variation is very fast, so as to depositing using Phase Tracking pilot tone It is existed only in an OFDM symbol in the first pattern of instruction, to save the expense of signaling.
For example, transmitter phase tracks pilot tone in the radio frames of base station instruction channel state information pilot transmission；Or base station Indicate that transmitter phase tracks pilot tone in the carrier wave of channel state information pilot transmission；Alternatively, base station instruction channel state information is led Frequency is in identical transmitting site location with Phase Tracking pilot tone.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with arbitrary The form of combination is located in different processors.
Embodiment 3
The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, above-mentioned storage medium can To be arranged to store the program code for executing following steps：
S11, base station determine the information of channel state information pilot tone, wherein the information of channel state information pilot tone is at least wrapped The number and the first pattern of channel state information pilot frequency port are included, channel state information pilot frequency port is believed for launch channel state Pilot tone is ceased, the first pattern is the pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel state information Pilot resources are used for Bearer Channel status information pilot tone, and channel state information pilot resources include one or more constituent element；
S12, base station send the information of channel state information pilot tone to terminal；
S13, Base Transmitter channel state information pilot tone.
Optionally, storage medium is also configured to store the program code for executing following steps：
S21, number and the first pattern to channel state information pilot frequency port carry out combined coding；
S22 further includes the class of the constituent element of channel state information pilot resources in the information of channel state information pilot tone When other, combined coding is carried out to the classification of the number of channel state information pilot frequency port, the first pattern and constituent element.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or The various media that can store program code such as CD.
Optionally, in the present embodiment, processor is executed according to stored program code in storage medium：Base station determines The information of channel state information pilot tone, wherein the information of channel state information pilot tone includes at least channel state information pilot tone end The number and the first pattern of mouth, channel state information pilot frequency port are used for launch channel status information pilot tone, and the first pattern is letter The pattern of the resource unit RE of channel state information pilot frequency port code division multiplexing, channel state information pilot resources are used for Bearer Channel Status information pilot tone, channel state information pilot resources include one or more constituent element；Base station sends channel state information The information of pilot tone is to terminal；Base Transmitter channel state information pilot tone.
Optionally, in the present embodiment, processor is executed according to stored program code in storage medium：To channel shape The number of state information pilot frequency port and the first pattern carry out combined coding；Or, the information in channel state information pilot tone further includes When the classification of the constituent element of channel state information pilot resources, number, the first pattern to channel state information pilot frequency port And the classification of constituent element carries out combined coding.
Optionally, the specific example in the present embodiment can refer to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and 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 by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
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, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (33)

1. a kind of transmission method of the channel state information pilot tone of port code division multiplexing, which is characterized in that including：
Base station determines the information of channel state information pilot tone, wherein the information of the channel state information pilot tone includes at least letter The number of channel state information pilot frequency port and the first pattern, the channel state information pilot frequency port is for emitting the channel shape State information pilot tone, first pattern are the pattern of the resource unit RE of the channel state information pilot frequency port code division multiplexing, The channel state information pilot resources are for carrying the channel state information pilot tone, the channel state information pilot resources Including one or more constituent element；
The base station sends the information of the channel state information pilot tone to terminal；
Channel state information pilot tone described in the Base Transmitter.
2. according to the method described in claim 1, it is characterized in that, the information of the channel state information pilot tone is used with lower section Formula carries out combined coding：
Number and first pattern to the channel state information pilot frequency port carry out combined coding；Or,
When the information of the channel state information pilot tone further includes the classification of constituent element of channel state information pilot resources, Joint volume is carried out to the classification of the number of the channel state information pilot frequency port, first pattern and the constituent element Code.
3. according to the method described in claim 1, it is characterized in that, the channel state information pilot frequency information further includes composition member The length of the classification of part, the channel state information pilot frequency port code division multiplexing, wherein the base station sends the channel status The information of information pilot tone includes to terminal：
The base station passes through the classification of the constituent element sent to the terminal and the channel state information pilot frequency port The length of code division multiplexing indicates collectively first pattern；Or,
The base station passes through the number of the channel state information pilot frequency port sent to the terminal, the constituent element Classification and the length of the channel state information pilot frequency port code division multiplexing indicate collectively first pattern.
4. according to the method described in claim 3, it is characterized in that, the constituent element occupies Y subcarrier on frequency domain, Z OFDM symbol is occupied in time domain, the length of the channel state information pilot frequency port code division multiplexing is X, and X, Y and Z are just whole Number, wherein first pattern determines in the following manner：
In the case where Y is more than Z, first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain Number；
In the case where Y is less than Z, first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain Number；
In the case where Y is equal to Z, first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain Number or first pattern occupied on frequency domain 1 subcarrier, in the time domain occupy X OFDM symbol.
5. according to the method described in claim 1, it is characterized in that, the second pattern occupies L subcarrier on frequency domain, described Two patterns occupy M OFDM symbol in the time domain, and the number of the channel state information pilot frequency port is N, the channel status The length of information pilot frequency port code division multiplexing is X, and second pattern is the letter for carrying the channel state information pilot tone The pattern of channel state information pilot resources, wherein be determined as follows first pattern：
The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take maximum The function of value；
The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are positive integer.
6. according to the method described in claim 1, it is characterized in that, the base station sends the letter of the channel state information pilot tone It ceases and includes to terminal：
The base station notifies two in multiple information to the terminal, and described first is indicated to pass through two information of notice Pattern, wherein two information of notice use combined coding, and the multiple information includes that first pattern occupies on frequency domain Q subcarrier, R OFDM symbol occupying in the time domain of first pattern and the channel state information pilot frequency port code Divide the length X of multiplexing.
7. according to the method described in claim 1, it is characterized in that, the base station sends the letter of the channel state information pilot tone It ceases and includes to terminal：
The base station notifies the number for the constituent element that first pattern is crossed over to the terminal.
8. according to the method described in claim 1, it is characterized in that, the position of the RE in first pattern port code division multiplexing In the case of discontinuous, it is determined as follows first pattern：
Multiple RE are connected according to the current Ubiety of multiple RE, multiple RE after being connected First pattern formed.
9. according to the method described in claim 1, it is characterized in that, the base station sends the letter of the channel state information pilot tone It ceases and includes to terminal：
The base station notifies the classification of subframe to the terminal, to indicate first pattern by the classification of the subframe, Wherein, the subframe is to emit the subframe used when first pattern.
10. according to the method described in claim 9, it is characterized in that, the base station notifies the classification of subframe to the terminal Including：
The base station notifies the number of the OFDM symbol included by the subframe to the terminal.
11. according to the method described in claim 9, it is characterized in that, the base station notifies the classification of subframe to the terminal Including：
The base station notifies the gap size of the subcarrier used when emitting first pattern to the terminal.
12. according to the method described in claim 1, it is characterized in that, the method further includes：
The base station notifies the length information of the information of the second pattern and the channel state information pilot frequency port code division multiplexing To the terminal, wherein second pattern occupies L subcarrier on frequency domain, and second pattern occupies M in the time domain The length of OFDM symbol, the channel state information pilot frequency port code division multiplexing is X, and second pattern is described for carrying The pattern of the channel state information pilot resources of channel state information pilot tone, first pattern wherein, by by described as follows Mode determines first pattern：By the second pattern information with and the channel state information pilot frequency port code division multiplexing length The joint instructions of degree X determine the first pattern.
13. according to the method for claim 12, which is characterized in that first pattern by second pattern in the time domain The information of M OFDM symbol of occupancy and the length X joint instructions of the channel state information pilot frequency port code division multiplexing determine.
14. according to the method for claim 12, which is characterized in that the information of the channel state information pilot tone further includes institute State the information whether the first pattern exists only in an OFDM symbol, wherein the terminal passes through the second pattern-information, described Whether the length X of channel state information pilot frequency port code division multiplexing, first pattern exist only in an OFDM symbol Information determines first pattern of the base station instruction.
15. according to the method for claim 14, which is characterized in that the base station is indicated described by Phase Tracking pilot tone Whether the first pattern exists only in the information in an OFDM symbol, wherein if Phase Tracking pilot tone exists, it indicates that first Pattern exists only in an OFDM symbol, if Phase Tracking pilot tone is if it does not exist, then the first pattern of instruction is not only deposited It is in an OFDM symbol.
16. a kind of transmitting device of the channel state information pilot tone of port code division multiplexing, which is characterized in that including：
Determination unit, the information for determining channel state information pilot tone, wherein the information of the channel state information pilot tone is extremely Include the number and the first pattern of channel state information pilot frequency port less, the channel state information pilot frequency port is for emitting institute Channel state information pilot tone is stated, first pattern is the resource unit RE of the channel state information pilot frequency port code division multiplexing Pattern, the channel state information pilot resources are for carrying the channel state information pilot tone, the channel state information Pilot resources include one or more constituent element；
Transmission unit, for sending the information of the channel state information pilot tone to terminal；
Transmitter unit, for emitting the channel state information pilot tone.
17. device according to claim 16, which is characterized in that the transmission unit is to the channel state information pilot tone Information carry out combined coding in the following ways：
Number and first pattern to the channel state information pilot frequency port carry out combined coding；Or,
When the information of the channel state information pilot tone further includes the classification of constituent element of channel state information pilot resources, Joint volume is carried out to the classification of the number of the channel state information pilot frequency port, first pattern and the constituent element Code.
18. device according to claim 16, which is characterized in that the channel state information pilot frequency information further includes composition The length of the classification of element, the channel state information pilot frequency port code division multiplexing, wherein the transmission unit includes：
First sending module, the classification for the constituent element by being sent to the terminal and the channel state information The length of pilot frequency port code division multiplexing indicates collectively first pattern；Or,
Second sending module, for passing through the number of the channel state information pilot frequency port sent to the terminal, described The classification of constituent element and the length of the channel state information pilot frequency port code division multiplexing indicate collectively first pattern.
19. device according to claim 18, which is characterized in that the constituent element occupies Y subcarrier on frequency domain, Z OFDM symbol is occupied in the time domain, and the length of the channel state information pilot frequency port code division multiplexing is X, and X, Y and Z are just Integer, wherein first pattern determines in the following manner：
In the case where Y is more than Z, first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain Number；
In the case where Y is less than Z, first pattern occupies 1 subcarrier on frequency domain, occupies X OFDM symbol in the time domain Number；
In the case where Y is equal to Z, first pattern occupies X subcarrier on frequency domain, occupies 1 OFDM symbol in the time domain Number or first pattern occupied on frequency domain 1 subcarrier, in the time domain occupy X OFDM symbol.
20. device according to claim 16, which is characterized in that the second pattern occupies L subcarrier on frequency domain, described Second pattern occupies M OFDM symbol in the time domain, and the number of the channel state information pilot frequency port is N, the channel shape The length of state information pilot frequency port code division multiplexing is X, and second pattern is for carrying the channel state information pilot tone The pattern of channel state information pilot resources, wherein be determined as follows first pattern：
The number Q=max (L*X/N, 1) for the subcarrier that first pattern occupies on frequency domain, wherein max () is to take maximum The function of value；
The number R=X/Q for the OFDM symbol that first pattern occupies in the time domain, wherein L, M, N, X, Q and R are positive integer.
21. device according to claim 16, which is characterized in that the transmission unit includes：
First notification module, for notifying two in multiple information to the terminal, to be referred to by the two of notice information Show first pattern, wherein two information of notice use combined coding, and the multiple information includes that first pattern exists The R OFDM symbol and the channel state information that Q subcarrier, first pattern occupied on frequency domain occupies in the time domain The length X of pilot frequency port code division multiplexing.
22. device according to claim 16, which is characterized in that the transmission unit includes：
The number of second notification module, the constituent element for crossing over first pattern is notified to the terminal.
23. device according to claim 16, which is characterized in that the determination unit is in first pattern port code point In the case of the position of the RE of multiplexing is discontinuous, it is determined as follows first pattern：
Multiple RE are connected according to the current Ubiety of multiple RE, multiple RE after being connected First pattern formed.
24. device according to claim 16, which is characterized in that the transmission unit includes：
Third notice module, for notifying the classification of subframe to the terminal, with by described in the instruction of the classification of the subframe First pattern, wherein the subframe is to emit the subframe used when first pattern.
25. device according to claim 24, which is characterized in that the third notice module is additionally operable to the subframe institute Including the number of OFDM symbol notify to the terminal.
26. device according to claim 25, which is characterized in that the third notice module is additionally operable to that described will be emitted The gap size of the subcarrier used when one pattern is notified to the terminal.
27. device according to claim 16, which is characterized in that described device further includes：
Notification unit is used for the length information of the information of the second pattern and the channel state information pilot frequency port code division multiplexing It notifies to the terminal, wherein second pattern occupies L subcarrier on frequency domain, and second pattern accounts in the time domain Length with M OFDM symbol, the channel state information pilot frequency port code division multiplexing is X, and second pattern is for holding Carry the pattern of the channel state information pilot resources of the channel state information pilot tone, first pattern wherein, by by institute State the first pattern as described in determining under type：Divide again by the information of the second pattern and with the channel state information pilot frequency port code The joint instructions of length X determine the first pattern.
28. device according to claim 27, which is characterized in that first pattern by second pattern in the time domain The information of M OFDM symbol of occupancy and the length X joint instructions of the channel state information pilot frequency port code division multiplexing determine.
29. device according to claim 27, which is characterized in that the information of the channel state information pilot tone further includes institute State the information whether the first pattern exists only in an OFDM symbol, wherein the terminal passes through the second pattern-information, described Whether the length X of channel state information pilot frequency port code division multiplexing, first pattern exist only in an OFDM symbol Information determines first pattern of base station instruction.
30. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein when described program is run Perform claim requires the method described in any one of 1 to 14.
31. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run Profit requires the method described in any one of 1 to 14.
32. a kind of base station, which is characterized in that including：
Processor；
Memory for storing the processor-executable instruction；
Transmitting device for carrying out information transmit-receive communication according to the control of the processor；
Wherein, the processor is for performing the following operations：
Determine the information of channel state information pilot tone, wherein the information of the channel state information pilot tone includes at least channel shape The number and the first pattern of state information pilot frequency port, the channel state information pilot frequency port is for emitting the channel status letter Pilot tone is ceased, first pattern is the pattern of the resource unit RE of the channel state information pilot frequency port code division multiplexing, described For carrying the channel state information pilot tone, the channel state information pilot resources include channel state information pilot resources One or more constituent element；
The information of the channel state information pilot tone is sent to terminal；
Emit the channel state information pilot tone.
33. base station according to claim 32, which is characterized in that the processor is additionally operable to execute following operation
Number and first pattern to the channel state information pilot frequency port carry out combined coding；
When the information of the channel state information pilot tone further includes the classification of constituent element of channel state information pilot resources, Joint volume is carried out to the classification of the number of the channel state information pilot frequency port, first pattern and the constituent element Code.
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