CN106301690A - The sending, receiving method of control information and device - Google Patents

The sending, receiving method of control information and device Download PDF

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Publication number
CN106301690A
CN106301690A CN201610830330.2A CN201610830330A CN106301690A CN 106301690 A CN106301690 A CN 106301690A CN 201610830330 A CN201610830330 A CN 201610830330A CN 106301690 A CN106301690 A CN 106301690A
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China
Prior art keywords
information
precoding
control information
data transmission
business data
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CN201610830330.2A
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Chinese (zh)
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CN106301690B (en
Inventor
柯柏安
陈小锋
吕永霞
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201610830330.2A priority Critical patent/CN106301690B/en
Priority claimed from CN201110099665.9A external-priority patent/CN102752070B/en
Publication of CN106301690A publication Critical patent/CN106301690A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

Abstract

The embodiment provides a kind of sending, receiving method controlling information and device, relate to communication technical field, invent for being effectively improved the utilization of resources rate of communication system.The sending method of described control information, including: sending the first control information, described first control information includes that the precoding information that described second control information is used, described second control information include that business data transmission controls information；Use described precoding information that described second control information is carried out precoding processing；The described second control information of precoding processing is carried out described in transmission.The present invention can be used in the wireless communication systems such as Long Term Evolution.

Description

The sending, receiving method of control information and device
Present patent application is divisional application, and the application number of original bill is 201110099665.9, and the applying date is 2011 04 month 20 days, denomination of invention was: control sending, receiving method and the device of information.
Technical field
The present invention relates to communication technical field, particularly relate to a kind of sending, receiving method controlling information and device.
Background technology
Drilling for a long time of third generation partner program (3rd Generation Partnership Project, 3GPP) Enter the Long Term Evolution LTE-A (Long Term Evolution Advanced) of LTE (Long Term Evolution)/enhancing In system, downlink multi-access access way uses orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), thus the downlink resource of system has been temporally divided into orthogonal frequency division multiplex OFDM (Orthogonal Frequency Division Multiplexing) symbol, has been partitioned into subcarrier in frequency.
According to LTE version 8/9/10 (Release 8/9/10) standard, in LTE/LTE-A system, at normal CP Under (normal cyclic prefix), a normal descending sub frame contains 14 orthogonal frequency division multiplex OFDM symbols, at extended CP Under (extended cyclic prefix), a normal descending sub frame contains 12 OFDM symbol.System is user equipment (UE) (User Equipment) least unit of distribution physical resource is Physical Resource Block PRB (Physical Resource Block).One PRB comprises 12 subcarriers on frequency domain, is half subframe duration in time domain, i.e. comprises 7 OFDM symbol or 6 OFDM Symbol.
In subframe, the various data of carrying, are to mark off various physical channel on the physical time-frequency resource of subframe to organize Map.Various physical channels can be divided into two classes: controls channel and Traffic Channel.Correspondingly, the data controlling channel bearing can Being referred to as controlling data, also referred to as control information, the data of Traffic Channel carrying can be described as business datum.Wherein, communication is basic Purpose is transmission business datum, and the information that controls is for informing that UE issues the PRB number and these that the business datum of UE takies Original position in the most all PRB of PRB, the modulation coding mode etc. of business datum, with supplementary services data Transmission.Generally being referred to as controlling information by the information that supplementary services data is transmitted, transmit on a control channel, such as, resource is distributed The information such as RA (Resource Allocation) and modulation coding mode MCS (Modulation and Coding Scheme).
In prior art, control channel in a subframe and can take front 3 OFDM symbol of all PRB of whole system, This expense is bigger so that business datum can resource reduce, utilization of resources rate is the highest.
Summary of the invention
The main purpose of embodiments of the invention is, it is provided that a kind of sending, receiving method controlling information and device, energy Enough it is effectively improved the utilization of resources rate of communication system.
For reaching above-mentioned purpose, the embodiment of the present invention adopts the following technical scheme that
A kind of sending method controlling information, including:
Sending the first control information, described first control information includes the precoding letter that described second control information is used Breath, described second control information includes that business data transmission controls information；
Use described precoding information that described second control information is carried out precoding processing；
The described second control information of precoding processing is carried out described in transmission.
A kind of method of reseptance controlling information, including:
Receiving the first control information, described first control information includes the precoding information that the second control information is used, Described second control information includes that business data transmission controls information；
Receive the described second control information using described precoding information to carry out precoding processing；
According to described precoding information, it is decoded described second control information processing；
The second control information according to described decoding process, carries out business data transmission.
A kind of base station, including:
Transmitting element, for sending the first control information, described first control information includes that described second controls information institute The precoding information used, described second control information includes that business data transmission controls information；
Processing unit, is used for using described precoding information that described second control information is carried out precoding processing；
Described transmitting element is additionally operable to send the described second control information through described processing unit precoding processing.
A kind of UE, including:
Transmit-Receive Unit, for receiving the first control information, described first control information includes that the second control information is used Precoding information, described second control information include business data transmission control information, receive use described precoding information Carry out the described second control information of precoding processing；
Decoding unit, for according to described precoding information, is decoded described second control information processing；
Described Transmit-Receive Unit is additionally operable to the second control information according to described decoding process, carries out business data transmission.
Use after technique scheme, the sending, receiving method of control information that the embodiment of the present invention provides, base station and UE, notifies to UE by the first control information by the precoding information that second controls information, and so, second controls prelisting of information Code information can be determined according to practical situations such as channel conditions, optimizes the transmission performance of the second control information, therefore, when When second control information is transmitted a number of information bit and reaches performance requirement, it is possible to use the higher chnnel coding of code check Mode, i.e. can become less code word bits this number of bits of encoded, and such second control information just can take Less resource, i.e. decreases the resource overhead that the second control information takies, and the resource being effectively increased communication system is the most sharp By rate.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used To obtain other accompanying drawing according to these accompanying drawings.
A kind of flow chart of the sending method of the control information that Fig. 1 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 2 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 3 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 4 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 5 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 6 provides for the embodiment of the present invention；
A kind of flow chart of the sending method of the control information that Fig. 7 provides for the embodiment of the present invention；
A kind of flow chart of the method for reseptance of the control information that Fig. 8 provides for the embodiment of the present invention；
The structural representation of the base station that Fig. 9 provides for the embodiment of the present invention；
The structural representation of the UE that Figure 10 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe wholely.
It will be appreciated that described embodiment be only the present invention a part of embodiment rather than whole embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its His embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, embodiments provide a kind of sending method controlling information, based on base station, including following Step:
Step 101, sends the first control information, and described first control information includes what described second control information was used Precoding information, described second control information includes that business data transmission controls information.
In the embodiment of the present invention, use the transmission mode of two-step evolution information, first send the first control information, the first control Information processed is mainly used in notifying the precoding information that UE second controls information, then sends the second control information, with business datum The control information spinner that transmission is relevant to be contained in the second control information.So, base station just can be in real time according to channel conditions etc. Practical situation, and be that the second control selects most preferably or preferably precoding information, by the second control information is carried out precoding Process, effectively to promote the transmission performance of the second control information, and then, when the second control information transmits a number of information ratio Time special, on the premise of the transmission performance reaching the second control information requires, it is possible to use the higher channel coding method of code check, I.e. this number of bits of encoded can be become less code word bits, such second control information just can take less Resource, i.e. decreases the resource overhead that the second control information takies, and is effectively increased the utilization of resources rate of communication system.
Wherein, the precoding information that the second control information is used includes: the second control information is entered by transmitting terminal, i.e. base station The information used during row precoding processing and/or the data obtained after the second control information is carried out precoding processing Demodulation obtains the described second information controlling to use during information.Specifically can include pre-coding matrix or precoding vector, data Layer (Layer) number of plies, demodulation pilot tone that antenna port (Antenna Port) that data Layer is corresponding is corresponding with antenna port In the information such as scrambling mark (Scrambling ldentity) of (DeModulation Reference Signal, DMRS) At least one information.
Wherein, the data Layer number of plies is that the number of plies of transmission data is it can be understood as simultaneously can the data amount check of parallel transmission.Lift Example illustrates, transmitting terminal has T or T group antenna, it is assumed that the data Layer number of plies is k, be this k according to by T antenna or T group sky Line sends, and needs first k to be transformed into T number, is then sent by T or T group antenna.Precoding processing process is main Comprise and determine data Layer number of plies k, k is become the process of T number.Generally, k is become the precoding mode of T number As follows:
K is write as vector form:
K=trans{ [x (0), x (1) ..., x (k-1)] }
Wherein, trans{} representing matrix or the transposition of vector；
The matrix W using T row k row is multiplied by K and obtains a vector comprising T number:
Y=trans{ [y (0), y (1) ..., y (T-1)] }.
Thus just k is become T number.If W=[w (0), w (2) ..., w (k-1)], wherein w (i) be dimension or The column vector of a length of T.Now, there is another kind of expression, i.e. decompose to come and see, Y=x (0) w (0)+x (1) w (1)+...+x (k- 1)w(k-1).Assuming that receiving terminal has R reception antenna, the channel between T antenna of transmitting terminal to R antenna of receiving terminal is H, wherein H is the matrix of R row T row, and i-th is classified as i-th launches antenna to R reception antenna channel fading coefficient respectively, jth behavior T Individual transmitting antenna arrives the channel fading coefficient of jth reception antenna respectively.Data Y that transmitting terminal sends, after channel, receive Hold the data composition that R reception antenna receive vectorial Y '=trans{ [y ' (0), y ' (1) ..., y ' (R-1)]=HY= HWK=x (0) [Hw (0)]+x (1) [Hw (1)]+...+x (k-1) [Hw (k-1)], wherein y ' (i) is that i-th reception antenna receives The data arrived.Receiving terminal to demodulate data x (0) obtaining actual transmission ..., x (k-1), it is to be appreciated that: transmitting terminal have sent The column vector [Hw (i)] that several layer data, matrix H W that these several layer data are corresponding or each layer of decomposition are come corresponding when seeing.Cause This, from transmitting terminal and receiving terminal on the whole, the content of precoding information be transmitting terminal to the second precoding controlling information at The information used during reason, and/or the data obtained after the second control information is carried out precoding processing demodulate and obtains Described second controls the information used during information.
And receiving terminal to be allowed knows precoding information, typically has two kinds of methods, as follows:
Method one, transmitting terminal, data Layer number of plies information k, pre-coding matrix W or every layer of corresponding W (i) information, is sent to Receiving terminal.And receiving terminal passes through not through the pilot tone (reference signal, RS) of precoding again, such as LTE/LTE-A The public guide frequency (common reference signal, CRS) of system or channel condition information pilot tone (channel state Information reference signal, CSI-RS), estimate to obtain H.Next data K of transmission can just be demodulated. According to the difference of channel conditions, the data Layer number of plies is change.Certainly, if the data Layer number of plies of communication system is fixedly installed, i.e. No matter channel conditions how, the data of the fixing number of plies of transmission all the time between base station and UE, and this fixing number of plies is by base station and UE institute Know altogether, then, in the embodiment of the present invention, precoding information is without including the data Layer number of plies.It addition, pre-coding matrix W or every layer of correspondence W (i) information can be obtained by blind Detecting under conditions of given data counts layer by layer, therefore, precoding information also can not wrap Include pre-coding matrix W or every layer of corresponding w (i) information.
Method two, transmitting terminal data Layer number of plies information k, this k layer data will on which antenna port the information of transmission, The scrambling identification information of the demodulation pilot tone (demodulation reference signal, DMRS) that these antenna port is corresponding, It is sent to receiving terminal.Wherein, antenna opening is corresponding with data Layer, such as the port Port 7,8 in LTE/LTE-A system ..., 14；Demodulation pilot tone is the pilot tone sent in each antenna opening, but these pilot tones are the same with data have passed through at identical precoding Reason, the scrambling identification information of demodulation pilot tone indicates how the concrete value data of pilot tone generates or obtain, such as LTE/LTE-A The nSCID of system inner end mouth Port 7,8 correspondence.And by the scrambling mark of demodulation pilot tone, receiving terminal learns that transmitting terminal is at antenna The pilot data sent on port, because demodulation pilot tone and data have passed through identical precoding processing, it is possible to by connecing The pilot data that the pilot data received and transmitting terminal are launched is estimated to obtain channel H and pre-coding matrix W or row between dual-mode antenna Vector w (i) information [HW] that synthesizes or Hw (i).Next data K of transmission can just be demodulated.It is understood that for For part particular antenna port, the scrambling identification information of the demodulation pilot tone of its correspondence determines, it is not necessary to be included in precoding letter In breath.And under some scenes, i.e. be would know that data Layer number of plies information by antenna port information, therefore, in precoding information not Need to include that antenna port information and data count information layer by layer simultaneously.It addition, on the premise of antenna port determines, precoding is believed Breath is not required to include antenna port information.
To sum up, by method one with two it will be seen that precoding information can include the data Layer that the second control information is corresponding The antenna end message that number information k, pre-coding matrix W or every layer of corresponding precoding vector w (i) information, this k layer data are corresponding Breath, all or part of information etc. in the scrambling identification information of the demodulation pilot tone that antenna port is corresponding.
Due to base station can in real time the channel conditions of basis and determine the described second precoding information controlling information, described The precoding information that second control information is used is probably real-time change, and therefore, in the embodiment of the present invention, base station is by the One controls message notifies to UE, to ensure that UE is just controlling information to second by the precoding information that the second control information is used Often receive.
Wherein, included in the first control information precoding information specifically can include that the second control information is used Pre-coding matrix.Under normal circumstances, in actual communication system, it is possible to use the number of pre-coding matrix be limited, And each pre-coding matrix can be designated a sequence number, this sequence number is referred to as precoding square in LTE/LTE-A system Battle array instruction PMI (Precoding Matrix Index).Therefore, in the embodiment of the present invention, optionally, the first control information is wrapped Include pre-coding matrix bit field, the sequence number of this field instruction pre-coding matrix.
Illustrate, it is assumed that communication system has altogether 8 spendable pre-coding matrixes of serial number 0 to 7, now, Pre-coding matrix bit field in first control information can include 3 bits, and the bit value of this bit field represents and prelists The sequence number of code matrix, such as, when this bit field is " 000 ", represent that the second control information uses the 0th pre-coding matrix, When this bit field is ' 111 ' the 7th pre-coding matrixes of expression.
It addition, when precoding information included in the first control information specifically includes what the second control information was used When pre-coding matrix and the data Layer number of plies, if being associating number consecutively for the pre-coding matrix corresponding to the different numbers of plies , now, optionally, the pre-coding matrix bit field in the first control information, the sequence number of pre-coding matrix can be indicated simultaneously Count layer by layer with data.
Such as, when the data Layer number of plies is 1, it is possible to use 4 pre-coding matrixes, when the number of plies is 2, it is possible to use 8 prelist Code matrix, i.e. has 12 pre-coding matrixes, and associating number consecutively is 0 to 11, and such as, serial number 0 represents the 1st that the number of plies is 1 Individual pre-coding matrix, serial number 3 represents the 4th pre-coding matrix that the number of plies is 1, and serial number 4 represents the 1st volume that the number of plies is 2 Code matrix, by that analogy.Now, the pre-coding matrix bit field in the first control information can include 4 bits, this bit The bit value of field represents the sequence number of pre-coding matrix and data count layer by layer, such as, when this bit field is " 1000 ", means No. 8 pre-coding matrix, the data Layer number of plies i.e. indicating the second control information to be used is 2, and can use when the number of plies is 2 The 4th pre-coding matrix in 8 pre-coding matrixes.
Certainly, when precoding information included in the first control information specifically includes what the second control information was used When pre-coding matrix and the data Layer number of plies, the first control information can include pre-coding matrix bit field and data Layer simultaneously Number of plies field, indicates respectively that the sequence number of pre-coding matrix and data count layer by layer.
It should be noted that in the embodiment of the present invention, the first control information is mainly used in notifying the pre-of the second control information Coding information, and the control information spinner relevant to business data transmission to be contained in the second control information.But, first controls Information does not limit so, in addition to the precoding information that the second control information is used, optionally, the first control information may also include with The control information of business data transmission, such as ascending control channel PUCCH (Physical Uplink Control Channel) Information, this information transmits corresponding confirmation response ACK for instruction for uplink feedback downlink service data (Acknowledgement)/deny the PUCCH of response NACK (Negative-acknowledgement) information specifically which Individual PUCCH channel, including this PUCCH channel position on running time-frequency resource and other relevant parameter etc..
So, normally receiving if there is the first control information, second controls the situation of information reception failure, and UE can root According to the PUCCH information included by the first control information, the information such as the second situation controlling information reception failure are fed back in time Base station, is effectively ensured the proper communication of base station and UE.Concrete, PUCCH channel can be by the first time-frequency controlling information place The physical location of resource calculates, or directly indicates in the first content controlling information.
Further, for promoting the performance of communication system, reduce the blind Detecting of UE, optionally, in the first control information also Can include other transmission relevant parameters that the second control information used, such as, described second when controlling the physics at information place Frequently resource, such as second controls the PRB position at information place, described second controls the modulation coding mode of information and/or described Second organized formats etc. controlling information.Wherein, the second organized formats controlling information refers to the not simultaneous interpretation according to business datum Defeated mode second controls the content that information is comprised.Such as, in LTE/LTE-A system, according to the different transmission sides of business datum Formula, such as the different transmission mode (Transmission Mode) of high level configuration, it controls information organized formats accordingly form Format 1A/1B/1C/1D/2/2A/2B etc..
If it addition, the second control information can either support precoding transmissions mode, additionally it is possible to support to launch diversity transmission Mode, optionally, may also include the transmission means information of the second control information in the first control information, for instruction the second control Information uses precoding transmissions mode still to launch diversity transmission mode.Wherein, launch diversity processing mode can be with Alamoti launches the Space Frequency Block Coding SFBC (Spatial-Frequency Block Code) based on diversity mode, time empty Block coding STBC (Spatial-Time Block Code) etc., it is also possible to be other transmitting diversity mode set.So, exist Channel conditions that base station cannot obtain or the situation such as the channel situation of acquisition is inaccurate and cannot determine preferable or optimal pre- During coding information, or when the performance launching diversity transmission mode is better than precoding transmissions mode, base station can use transmitting point Collection transmission means issues the second control information, and is notified to UE by the first control information.
Optionally, in the first control information, the second transmission means controlling information can be used alone 1 bit field and enters Row instruction.Such as, this bit field is that " 1 " represents that the second control information uses transmitting diversity transmission mode, represents second for " 0 " Control information uses precoding transmissions mode, and vice versa.
Optionally, the second transmission means controlling information can also indicate precoding information with in the first control information One reservation state of bit field is distinguished.That is, in the first control information, the bit field of precoding information has not to be composed Give the reservation state of implication, use the transmission means of these reservation state instruction the second control information, this bit field value one Specific reservation state represents that the second control information uses and launches diversity transmission mode, if value is other unreserved state, table Show that the second control information uses precoding transmissions mode, and the value of this unreserved state indicates employing precoding transmissions mode Time pre-coding matrix and/or data number of plies information, vice versa.Such as, 12 precodings altogether mentioned in previous example Information (pre-coding matrix and data number of plies information), needs 4 bits to indicate.But 4 bits may indicate that 16 states altogether, false If front 12 states indicate respectively that the second control information uses precoding transmissions mode and concrete precoding information, then During some in remaining 4 states of this field value, represent that the second control information is to use to launch diversity mode transmission.
Concrete, the business data transmission that the second control information includes controls information and specifically includes that what business datum took The modulation coding mode information that PRB positional information, business datum use, the precoding information of business datum etc. passes with business datum Defeated relevant control information.
Step 102, uses described precoding information that described second control information is carried out precoding processing.
Use described precoding information that the second control information is carried out precoding processing, specifically refer to:
Situation 1, if in a step 101, uses method one in two kinds of methods of introduction, then precoding information bag Include pre-coding matrix or precoding vector and/or the data Layer number of plies, described in this situation, use described precoding information to second It is relatively more directly perceived that control information carries out precoding processing, because precoding processing uses pre-coding matrix or precoding vector, and/or The data Layer number of plies is all explicitly contained in described precoding information；
Situation 2, if in a step 101, uses method two in two kinds of methods of introduction, then precoding information can Data number of plies information k, the antenna port information that this k layer data is corresponding, adding of the demodulation pilot tone that antenna port is corresponding can be only included Disturb identification information.Pre-coding matrix or precoding vector is the most clearly comprised in precoding information described in this situation.Now, institute State the described precoding information of employing and the second control information is carried out precoding processing, refer specifically to use and comprise in precoding information The identical precoding processing mode of demodulation pilot tone corresponding to antenna port, the second control information is carried out precoding processing.
Simple in order to describe, above two situation, the present embodiment and latter embodiments are all summarised as using described pre- Coding information carries out precoding processing to the second control information.
Step 103, carries out the described second control information of precoding processing described in transmission.
It should be noted that in the embodiment of the present invention, use described precoding information that described second control information is carried out Precoding processing can be carried out before the first control information sends, it is possible to carries out after the first control information sends, that is；Step The order of rapid 102 does not limits, and in another embodiment of the present invention, step 102 is carried out before step 101, i.e. in the second control After information processed passes through precoding processing, first sending the first control information, notice UE second controls what information was used Precoding information, then sends the second control information.
The sending method of the control information that the embodiment of the present invention provides, uses the transmission mode of two-step evolution information, first Sending the first control information, the first control information is mainly used in notifying the precoding information that UE second controls information, then sends Second controls information, and the control information spinner relevant to business data transmission to be contained in the second control information.By the first control The precoding information that second controls information is notified that the second precoding information controlling information can be according to channel to UE by information processed The practical situations such as situation are determined, optimize the transmission performance of the second control information, therefore, when second controls information transmission one The information bit of determined number when reaching performance requirement, it is possible to use the higher channel coding method of code check, i.e. can be this The bits of encoded of determined number becomes less code word bits, such second control information just can take less resource, i.e. reduce The resource overhead that second control information takies, is effectively increased the utilization of resources rate of communication system.
In order to improve peak rate, meeting the future communication systems demand to data rate, lte-a system introduces carrier wave Polymerization (Carrier Aggregation) technology.In carrier aggregation technology, the frequency spectrum of two or more member carriers is polymerized Together to obtain wider transmission bandwidth.In lte-a system, the uplink and downlink member carrier number that UE can be differently configured, And each member carrier has independent hybrid automatic repeat-request HARQ (Hybrid Automatic Repeat Request) Process, then, when the UE in LTE-A is concurrently accessed multiple downlink member carrier, be total to the physical down of each downlink member carrier Enjoy the business datum being transferred to UE on channel (Physical Downlink Shared Channel, PDSCH), be required for transmission Control information accordingly.
Based on this, below embodiment of the present invention offer is controlled the sending method of information and how to be applied particularly to carrier wave and gather Close CA scene to be described in detail.
As in figure 2 it is shown, the sending method of the control information of the present embodiment, it is applied to the field of multiple downlink member carrier polymerization Under scape.In the present embodiment, the second control information includes that the business data transmission of at least one downlink member carrier controls information, Business data transmission in i.e. second control information controls information and includes the business data transmission of at least one downlink member carrier Control information, and the precoding information in the first control information be described at least one there is the downlink member of business data transmission The business data transmission of carrier wave controls the precoding information of information；The present embodiment includes:
Step 201, the business of combined channel coding (Joint Channel Coding) at least one downlink member carrier Data Transmission Controlling information.
It should be noted that in the present embodiment, at least one downlink member carrier described is to have business data transmission Downlink member carrier, it may include currently there is all or part of downlink member carrier of business data transmission.
When applying CRC check mechanism, the business data transmission of at least one downlink member carrier described is controlled information Carry out combined channel coding to have only to add a CRC check bit, decrease the redundant bit corresponding to CRC check, thus Save resource overhead further.
Step 202, uses precoding information that the described business data transmission carrying out combined channel coding is controlled information and enters Row precoding processing.
Wherein, precoding information is that the business data transmission of at least one downlink member carrier described controls prelisting of information Code information.In the present embodiment, precoding information is a public precoding information, and base station will use this public prelisting The business data transmission of at least one downlink member carrier described is controlled to obtain after information carries out combined channel coding by code information Data carry out precoding processing.I other words, the business data transmission of at least one downlink member carrier described controls information quilt After combined channel coding, precoding processing will be carried out by unified.
Step 203, sends the first control information, and described first control information includes the described combined channel coding that carries out Business data transmission controls information and carries out the precoding information that precoding processing is used.
Step 204, sends the second control information, and described second control information is through described in described precoding processing The business data transmission of at least one downlink member carrier controls information.
In the present embodiment, the second control information includes the business data transmission control of at least one downlink member carrier described Information processed, and the business data transmission of this at least one downlink member carrier controls information and carried out combined channel coding, the In two control information, use precoding information entrained by the first control information to described at least one there is business data transmission The business data transmission of downlink member carrier control the data that obtain after information carries out combined channel coding and carried out precoding Process.
Under the scene that multiple downlink member carriers are polymerized, there is the downlink member carrier of business data transmission the most in the same time Number is change, and in other words, the second gross information content controlling information can be change, and UE can know the by blind Detecting The change of two gross information contents controlling information.
In order to reduce blind Detecting, which downlink member carrier is the second control information can will have in the first control information Business data transmission control information and indicate, such as, optionally, the first control information also includes described under at least one The number of row member carrier, i.e. indicates the business data transmission having several downlink member carrier in the second control information to control letter Breath, now, in the second control information, it is right with it that the business data transmission control information needs of each downlink member carrier include The downlink member carrier identity answered, this mark can be similar to the carrier indication field in LTE/LTE-A or carrier wave refers to Show territory (Carrier Indicator Field, CIF).
Optionally, may also include the identity of at least one downlink member carrier described, i.e. in the first control information It is explicitly indicated and in the second control information, has the business data transmission of which downlink member carrier to control information.Such as, UE joins altogether It is equipped with 5 downlink member carriers, in the first control information, including the bit field of 5 bits, with 5 downlink members Carrier wave one_to_one corresponding, bit value is the business data transmission control that " 0 " represents not this downlink member carrier in the second control information Information processed, bit value is that " 1 " represents the business data transmission control information including this downlink member carrier in the second control information. If this bit field is " 11001 ", represents and in the second control information, have the 1st, 2,5 bit to distinguish corresponding downlink member carrier Business data transmission controls information, but does not has the business data transmission of the downlink member carrier that the 3rd, 4 bit is the most corresponding to control Information.
As it is shown on figure 3, the sending method of the control information of the present embodiment, apply equally to the polymerization of multiple downlink member carrier Scene under, unlike the embodiment shown in Fig. 2, in the present embodiment, the business data transmission of each downlink member carrier Control information is independently chnnel coding, independent precoding processing and transmission, say, that a downlink member carrier pair Ying Yuyi second controls information, and it is a downlink member carrier that the business data transmission in the second control information controls information Business data transmission controls information, and the precoding information in the first control information includes at least one downlink member carrier every The precoding information corresponding to business data transmission control information of individual downlink member carrier, the present embodiment includes:
Step 301, the independently business of each downlink member carrier at least one downlink member carrier of chnnel coding Data Transmission Controlling information.
It should be noted that in the present embodiment, at least one downlink member carrier described is to have business data transmission Downlink member carrier, it may include currently there is all or part of downlink member carrier of business data transmission.
Step 302, is respectively adopted each self-corresponding precoding information, each downlink member encoding described independent channel The business data transmission of carrier wave controls information and carries out precoding processing.
In at least one downlink member carrier described, the business data transmission of each downlink member carrier controls information respectively According to each self-corresponding precoding information, independently carry out precoding processing.
Step 303, sends the first control information, and described first control information includes at least one downlink member carrier described In the precoding information corresponding to business data transmission control information of each downlink member carrier；
Precoding information in i.e. first control information includes each descending one-tenth at least one downlink member carrier described The business data transmission of member's carrier wave controls the precoding information that the precoding processing of information is respectively adopted, and first controls information The precoding information being respectively adopted described in being combined channel together encodes and sends, and so when applying CRC check mechanism, subtracts Lack the redundant bit corresponding to CRC check, thus save resource overhead further.
Wherein, the first control information can have two kinds of forms, one: the first control information includes for described in UE configuration The bit field that at least one downlink member carrier is the most corresponding, the second control information of each downlink member carrier is used Precoding information is displayed in the bit field that this downlink member carrier is corresponding.It is to say, for described under at least one Whether certain carrier wave in row member carrier, regardless of whether have business data transmission, that is be scheduled, and controls information first In all include the bit field that this carrier wave is corresponding, the i.e. first control information is respectively provided with the information position that this carrier wave is corresponding.
Concrete, UE can be according to the value of bit field corresponding to each downlink member carrier in the first control information, it is judged that Go out whether this downlink member carrier is scheduled, that is whether have this downlink member carrier business data transmission control information with And first the business data transmission whether including this downlink member carrier in control information control the precoding information of information.Example As, if dispatched a downlink member carrier, in the first control information, the value of the bit field that this carrier wave is corresponding will not be Certain value, such as, the value of this bit field will not all 0, then, it is possible to this downlink member carrier is being carried out During scheduling, it is 0 by the whole value of bit field corresponding for this carrier wave in the first control information, to represent that this downlink member carrier does not has It is scheduled, controls i.e. without the business data transmission of this downlink member carrier information and the first control information do not have The business data transmission of this downlink member carrier controls the precoding information that information is corresponding.
And when to a downlink member carrier scheduling, the bit field that in the first control information, this carrier wave is corresponding can take appoints When what is worth, it is impossible to determined by the value of bit field whether this carrier wave is scheduled.Now, can be extra in the first control information Including the bit field of instruction, the bit number of this bit field is the number of at least one downlink member carrier described, and often Individual bit and downlink member carrier one_to_one corresponding, bit value represents this downlink member carrier for " 0 " and is not scheduled, does not have this The business data transmission control information of downlink member carrier, the first control information do not include the business datum of this downlink member carrier The precoding information of transmission control information, bit value represents this downlink member carrier for " 1 " and is scheduled, has this downlink member load The business data transmission of ripple controls information, and the first control information includes that the business data transmission of this downlink member carrier controls information Precoding information, vice versa.For example, it is assumed that at least one downlink member carrier described is five downlink member carriers, the One control information include instruction bit field, a length of 5 bits of this bit field, if this bit field is " 11001 ", table Show that the business data transmission with downlink member carrier corresponding to the 1st, 2,5 bit controls information, but there is no the 3rd, 4 bit The business data transmission of the most corresponding downlink member carrier controls information.
Its two: the first control information only includes the bit field that at least one downlink member carrier described is corresponding, each Precoding information and out of Memory that the business data transmission control information of downlink member carrier is used are shown under this In the bit field that row member carrier is corresponding, say, that the first control information does not include not having business data transmission, the most not The information position that the downlink member carrier that is scheduled is corresponding.
Under this form, the first control information needing to include, which is respectively in the first control information is descending for indicating The information that member carrier is corresponding, i.e. business data transmission control precoding information and the out of Memory of information.
Optionally, the first control information can include the bit field of instruction, and the bit number of this bit field is described The number of at least one downlink member carrier, and each bit and downlink member carrier one_to_one corresponding, bit value represents for " 0 " One control information does not include the information that this downlink member carrier is corresponding, and bit value represents the first control information for " 1 " and includes under this The information that row member carrier is corresponding.Such as, if this bit field is " 11001 ", represent that the first control information includes the 1st, 2,5 ratio The information that the most corresponding special downlink member carrier is corresponding, but do not have the downlink member carrier that the 3rd, 4 bit is the most corresponding corresponding Information.
Optionally, the first control information can also be at ratio corresponding to each downlink member carrier with business data transmission Special field includes carrier identification field, identifies the downlink member corresponding to each bit field in the first control information and carries Ripple.
Step 304, sends the second control of each downlink member carrier at least one downlink member carrier described respectively Information, the business data transmission of the described each downlink member carrier carrying out precoding processing the most respectively described in transmission controls letter Breath.
As shown in Figure 4, the sending method of the control information of the present embodiment, apply equally to the polymerization of multiple downlink member carrier Scene under, the present embodiment includes:
Step 401, the independently business datum of each downlink member carrier at least one descending carrier of chnnel coding Transmission control information, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding On.
It should be noted that in the present embodiment, at least one downlink member carrier described is to have business data transmission Downlink member carrier, it may include currently there is all or part of downlink member carrier of business data transmission.
Step 402, is respectively adopted each self-corresponding precoding information, carries out the every of independent channel coding and mapping to described The business data transmission of individual downlink member carrier controls information and carries out precoding processing.
Step 403, sends the first control information, and described first control information includes at least one downlink member carrier described In the precoding information corresponding to business data transmission control information of each downlink member carrier；
Precoding information in i.e. first control information includes each descending one-tenth at least one downlink member carrier described The business data transmission of member's carrier wave controls the precoding information that the precoding processing of information is respectively adopted, and first controls information The precoding information being respectively adopted described in being combined channel together encodes and sends, and so when applying CRC check mechanism, subtracts Lack the redundant bit corresponding to CRC check, thus save resource overhead further.
Step 404, send second control message, described second control message be on different data Layers transmission, Business data transmission through at least one downlink member carrier described in described precoding processing controls information.
In the present embodiment, the business data transmission of each downlink member carrier with business data transmission controls information and is Independently chnnel coding and add corresponding CRC check bit respectively, be then mapped on different data Layers, then use The precoding information that first control information includes carries out precoding processing at least one data Layer to be transmitted.With two loads As a example by ripple, it is assumed that k layer data can be transmitted, then can be by the second control information channel coding (channel from carrier wave 1 Coding) data after are mapped to wherein on k1 layer, will map from the data after the second control information channel coding of carrier wave 2 On wherein k2 layer, k1+k2=k.In this case, receiving terminal it is to be appreciated which k1 layer is the second control information of carrier wave 1, which K2 layer is the second control information of carrier wave 2.In step 403, if notify in the first control information is pre-coding matrix, and This pre-coding matrix is one and includes that k arranges big matrix, then because every in each layer in the data number of plies and pre-coding matrix String is one to one, that is to say needs which corresponding carrier wave 1 of k1 row clear and definite, and the business datum of which corresponding carrier wave 2 of k2 row passes Defeated control information.This corresponding relation directly can indicate in the first control information, it is also possible to presets a rule and advises Fixed, before such as having in the pre-coding matrix of k row, k1 is classified as carrier wave 1 continuously, and then k2 is classified as carrier wave 2 continuously.In step In 403, if in the first control information notice be the data Layer number of plies and/or antenna port because each in the data number of plies Layer and each antenna port are also one to one, and what which k1 layer was corresponding is the business data transmission control information of carrier wave 1, which The business data transmission of what k2 layer was corresponding is carrier wave 2 controls information, can by clearly any k1 antenna port corresponding be load The business data transmission of ripple 1 controls information, and what which k2 antenna port was corresponding is the business data transmission control information of carrier wave 2. This corresponding relation directly can indicate in the first control information, it is also possible to presets a rule and specifies, the most at least One k antenna port (port 7 in such as LTE/LTE-A, 8 ..., 7+k-1) in before continuously k1 antenna port corresponding Being the business data transmission control information of carrier wave 1, then what continuous k2 antenna port was corresponding is the business data transmission of carrier wave 2 Control information.
How the sending method that embodiment of the present invention offer controls information below is applied particularly to the scene of multiple UE It is described in detail.
As it is shown in figure 5, the sending method of the control information of the present embodiment, it is applied under the scene of multiple UE, the present embodiment In, at least one UE, the business data transmission of each UE controls information is independently chnnel coding, independent precoding processing And transmission, a UE controls information corresponding to one second, and the business data transmission in the second control information controls information and is The business data transmission of one UE controls information, and the precoding information in the first control information includes at least one UE each The precoding information corresponding to business data transmission control information of UE, the present embodiment includes:
Step 501, independently at least one UE of chnnel coding, the business data transmission of each UE controls information.
It should be noted that in the present embodiment, at least one UE described is the UE with business data transmission, it may include when Before there is all or part of UE of business data transmission.
Step 502, is respectively adopted each self-corresponding precoding information, the business of each UE encoding described independent channel Data Transmission Controlling information carries out precoding processing.
Step 503, sends the first control information, and described first control information includes each UE at least one UE described Precoding information corresponding to business data transmission control information；
Precoding information in i.e. first control information includes the business data transmission of each UE at least one UE described The precoding information that the precoding processing of control information is respectively adopted, and the first control information be described in be respectively adopted prelist Code information combined channel together encodes and sends, and so when applying CRC check mechanism, decreases corresponding to CRC check Redundant bit, thus save resource overhead further.
Wherein, the first control information can have two kinds of forms, one: the first control information include for described at least one The bit field that UE is the most corresponding, the precoding information that the business data transmission control information of each UE is used is displayed on this In the bit field that UE is corresponding.It is to say, for certain UE at least one UE described, regardless of whether have business datum Transmission, that is whether be scheduled, the first control information all includes bit field corresponding to this UE, in the i.e. first control information It is respectively provided with information position corresponding for this UE.
Concrete, UE can be according to the value of bit field corresponding for each UE in the first control information, it is judged that whether this UE It is scheduled, that is the business data transmission whether with this UE controls whether include this UE in information and the first control information Business data transmission control information precoding information.Such as, if during to a UE scheduling, in the first control information this UE pair The value of the bit field answered will not be for certain value, and such as, the value of this bit field will not all 0, then, it is possible to When this UE not being scheduling, it is 0 by the whole value of bit field corresponding for this UE in the first control information, to represent this UE It is not scheduled, controls the industry in information and the first control information without this UE i.e. without the business data transmission of this UE The precoding information that business Data Transmission Controlling information is corresponding.
And when to a UE scheduling, when bit field corresponding for this UE in the first control information can take any value, it is impossible to Determined by the value of bit field whether this UE is scheduled.Now, the first control information can additionally include instruction Bit field, the bit number of this bit field is the number of at least one UE described, and each bit and UE one_to_one corresponding, bit Value represents this UE be not scheduled, do not have business data transmission of this UE for " 0 " and controls information, the first control information and do not include The business data transmission of this UE controls the precoding information of information, and bit value is that " 1 " represents this UE and is scheduled, has the industry of this UE Business Data Transmission Controlling information, the first control information includes that the business data transmission of this UE controls the precoding information of information, instead Also may be used.For example, it is assumed that at least one UE described is five UE, the first control information includes the bit field of instruction, should A length of 5 bits of bit field, if this bit field is " 11001 ", represent the business with UE corresponding to the 1st, 2,5 bit Data Transmission Controlling information, but do not have the business data transmission of the UE that the 3rd, 4 bit is the most corresponding to control information.
Its two: the first control information only includes described bit field corresponding at least one UE, the business number of each UE The precoding information and the out of Memory that are used according to transmission control information are shown in bit field corresponding to this UE, the most just It is to say, the first control information does not include not having business data transmission, the information position corresponding for UE not being scheduled.
Which under this form, the first control information needs include for indicating in the first control information to be respectively UE pair The information answered, i.e. business data transmission control precoding information and the out of Memory of information.
Optionally, the first control information can include the bit field of instruction, and the bit number of this bit field is described The number of at least one UE, and each bit and UE one_to_one corresponding, bit value represents the first control information for " 0 " and does not include this UE Corresponding information, bit value is that " 1 " represents the first control information and includes information corresponding to this UE.Such as, if this bit field is " 11001 ", represent that the first control information includes the information corresponding for UE that the 1st, 2,5 bit is the most corresponding, but do not have the 3rd, 4 bit The most corresponding information corresponding for UE.
Optionally, the first control information can also be wrapped in each bit field corresponding for UE with business data transmission Include UE identification field, identify the UE corresponding to each bit field in the first control information.
Step 504, sends the second control information of each UE at least one UE described respectively, enters the most respectively described in transmission The business data transmission of described each UE of row precoding processing controls information.
As shown in Figure 6, the sending method of the control information of the present embodiment, it is applied under the scene of multiple UE, the present embodiment Including:
Step 601, independently at least one UE of chnnel coding, the business data transmission of each UE controls information, by institute State the business data transmission control information MAP carrying out independent channel coding to different data Layers.
It should be noted that in the present embodiment, at least one UE described is the UE with business data transmission, it may include when Before there is all or part of UE of business data transmission.
Step 602, is respectively adopted each self-corresponding precoding information, carries out the every of independent channel coding and mapping to described The business data transmission of individual UE controls information and carries out precoding processing.
Step 603, sends the first control information, and described first control information includes each UE at least one UE described Precoding information corresponding to business data transmission control information；
Precoding information in i.e. first control information includes the business data transmission of each UE at least one UE described The precoding information that the precoding processing of control information is respectively adopted, and the first control information be described in be respectively adopted prelist Code information combined channel together encodes and sends, and so when applying CRC check mechanism, decreases corresponding to CRC check Redundant bit, thus save resource overhead further.
Step 604, send second control message, described second control message be on different data Layers transmission, Business data transmission through at least one UE described in described precoding processing controls information.
In the present embodiment, at least one UE described, it is independently to believe that the business data transmission of each UE controls information Road encodes and adds corresponding CRC check bit respectively, is then mapped on different data Layers, then uses the first control letter The precoding information that breath includes carries out precoding processing at least one data Layer to be transmitted.As a example by two UE, it is assumed that K layer data can be transmitted, then the business data transmission from UE1 can be controlled information channel coding (channel Coding) data after are mapped to wherein on k1 layer, and the business data transmission from UE2 controls the number after information channel coding According to being mapped to wherein on k2 layer, k1+k2=k.In this case, receiving terminal is it is to be appreciated that the business datum which k1 layer is UE1 passes Defeated control information, which k2 layer is that the business data transmission of UE2 controls information.In step 603, if the first control information is led to Know is pre-coding matrix, and this pre-coding matrix is one and includes that k arranges big matrix, then because each in the data number of plies Every string in layer and pre-coding matrix is one to one, that is to say needs which k1 row corresponding UE 1 clear and definite, which k2 row correspondence The business data transmission of UE2 controls information.This corresponding relation directly can indicate in the first control information, it is also possible to sets in advance A fixed rule specifies, before such as having in the pre-coding matrix of k row, k1 is classified as UE1 continuously, and then k2 is classified as UE2 continuously 's.In step 603, if notify in the first control information is the data Layer number of plies and/or antenna port, because the data number of plies In each layer and each antenna port be also one to one, the business data transmission of what which k1 layer was corresponding is UE1 controls Information, what which k2 layer was corresponding is the business data transmission control information of UE2, can be corresponding by clearly which k1 antenna port Being the business data transmission control information of UE1, what which k2 antenna port was corresponding is the business data transmission control information of UE2. This corresponding relation directly can indicate in the first control information, it is also possible to presets a rule and specifies, the most at least One k antenna port (port 7 in such as LTE/LTE-A, 8 ..., 7+k-1) in before continuously k1 antenna port corresponding Being the business data transmission control information of UE1, what then continuous k2 antenna port was corresponding is the business data transmission control of UE2 Information.
As it is shown in fig. 7, the sending method of the control information of the present embodiment, it is applied under the scene of multiple UE, the present embodiment Including:
Step 701, independently at least one UE of chnnel coding, the business data transmission control information of each UE is right The precoding information answered, independently the business data transmission of each UE described in chnnel coding controls information, carries out described solely The business data transmission of vertical chnnel coding controls information MAP to different data Layers.
It should be noted that in the present embodiment, at least one UE described is the UE with business data transmission, it may include when Before there is all or part of UE of business data transmission.
Step 702, is respectively adopted each self-corresponding precoding information, carries out the every of independent channel coding and mapping to described The business data transmission of individual UE controls information and carries out precoding processing.
Step 703, sends the first control information of each UE at least one UE described respectively, send the most respectively described solely The business data transmission of each UE of vertical chnnel coding controls the precoding information that information is used.
Step 704, send second control message, described second control message be on different data Layers transmission, Business data transmission through at least one UE described in described precoding processing controls information.
In the present embodiment, at least one UE described, it is independently to believe that the business data transmission of each UE controls information Road coding, independent precoding processing, and add corresponding CRC check bit respectively, and the business data transmission of each UE controls Information is transmitted together, and the most independently transmitted during the first of each UE the control information.
As a example by two UE, it is assumed that can transmit k layer data, wherein k1 layer data is the business data transmission from UE1 Controlling the data after information channel coding (channel coding), k2 layer data is the business data transmission control from UE2 Data after information channel coding, k1+k2=k.Now, can notify in the first control information of each UE whole have that k arranges pre- The layer at the data place of encoder matrix and each UE, or antenna port and the number of each UE that at least one k layer is corresponding can be notified According to the antenna port that the layer at place is corresponding, or can also only notify each UE data place layer corresponding to whole have k to arrange The row therein of pre-coding matrix extract the pre-coding matrix of formation.
Corresponding with the method shown in Fig. 1, the embodiment of the present invention additionally provides a kind of method of reseptance controlling information, based on UE, as shown in Figure 8, including:
Step 801, receives the first control information, and described first control information includes that what the second control information used prelists Code information, described second control information includes that business data transmission controls information；
Wherein, described precoding information can include at least one information following: pre-coding matrix, precoding vector, data Count layer by layer, the antenna port that data Layer is corresponding, the scrambling mark of the demodulation pilot tone corresponding with antenna port；
Step 802, receives the described second control information using described precoding information to carry out precoding processing；
Step 803, according to described precoding information, is decoded described second control information processing；
Step 804, according to the second control information of described decoding process, carries out business data transmission.
The method of reseptance of the control information that the embodiment of the present invention provides, UE can control message by first and know the second control The precoding information of information processed, so, the second precoding information controlling information can give according to practical situations such as channel conditions To determine, optimize the transmission performance of the second control information, therefore, when second controls the information a number of information bit of transmission And when reaching performance requirement, it is possible to use the higher channel coding method of code check, i.e. can be this number of bits of encoded Becoming less code word bits, such second control information just can take less resource, the second control information that i.e. decreases accounts for Resource overhead, be effectively increased the utilization of resources rate of communication system.
Further, described first control information may also include at least one information following:
Ascending control channel PUCCH information, the physical time-frequency resource at described second control information place, described second control The modulation coding mode of information, the described second organized formats and described second controlling information control the transmission means of information, Certainly, the first control information may also include the control information that other are relevant to business data transmission.
At this moment, step 804 particularly as follows:
The second control information according to described first control information and described decoding process carries out business data transmission.
Corresponding with the method for reseptance of aforementioned control information, the embodiment of the present invention additionally provides a kind of base station, such as Fig. 9 institute Show, including:
Transmitting element 10, for sending the first control information, described first control information includes described second control information The precoding information used, described second control information includes that business data transmission controls information；
Processing unit 11, is used for using described precoding information that described second control information is carried out precoding processing；
Transmitting element 10 is additionally operable to send the described second control information of treated unit 11 precoding processing.
The base station that the embodiment of the present invention provides, it is possible to use the transmission mode of two-step evolution information, first send the first control Information processed, the first control information is mainly used in notifying the precoding information that UE second controls information, then sends the second control letter Breath, the control information spinner relevant to business data transmission to be contained in the second control information.Information is controlled by the by first Two precoding informations controlling information notify that the second precoding information controlling information can be according to reality such as channel conditions to UE Situation is determined, optimizes the transmission performance of the second control information, therefore, when second controls the information a number of letter of transmission When ceasing bit and reach performance requirement, it is possible to use the higher channel coding method of code check, i.e. can be this number of ratio Spy is encoded into less code word bits, and such second control information just can take less resource, i.e. decrease the second control The resource overhead that information takies, is effectively increased the utilization of resources rate of communication system.
Wherein, the described precoding information that includes of the first control information that transmitting element 10 sends include following at least one Information:
Pre-coding matrix, precoding vector, the data Layer number of plies, the antenna port that data Layer is corresponding is corresponding with antenna port Demodulation pilot tone scrambling mark.
Further, the first control information that transmitting element 10 sends may also include at least one information following:
Ascending control channel PUCCH information, the physical time-frequency resource at described second control information place, described second control The modulation coding mode of information, the described second organized formats and described second controlling information control the transmission means of information. Wherein, the described second transmission means controlling information includes launching diversity mode or precoding processing mode.
When the base station applies that the embodiment of the present invention provides is under the scene that multiple downlink member carriers are polymerized, in the present invention An embodiment in:
Business data transmission in the second control information that transmitting element 10 sends controls information and includes: at least one is descending The business data transmission of member carrier controls information；
Transmitting element 10 send the first control information in precoding information be described at least one there is business datum The business data transmission of the downlink member carrier of transmission controls the precoding information of information；
Processing unit 11 is additionally operable to: the business data transmission control of combined channel coding at least one downlink member carrier described Information processed；
After combined channel coding, processing unit 11 specifically for: use the business of at least one downlink member carrier described The precoding information of Data Transmission Controlling information controls information to the described business data transmission carrying out combined channel coding and carries out Precoding processing.
At this moment, in the described first control information that transmitting element 10 sends, may also include at least one downlink member described The number of carrier wave or the identity of at least one downlink member carrier described.
When the base station applies that the embodiment of the present invention provides is under the scene that multiple downlink member carriers are polymerized, in the present invention Another embodiment in:
Precoding information in the first control information that transmitting element 10 sends includes: at least one downlink member carrier The precoding information corresponding to business data transmission control information of each downlink member carrier；
Processing unit 11 is additionally operable to: the independently business data transmission control of each downlink member carrier described in chnnel coding Information processed；
Independent channel coding after, processing unit 11 specifically for: be respectively adopted the precoding information of described correspondence, to described The business data transmission of each downlink member carrier of independent channel coding controls information and carries out precoding processing；
Transmitting element 10 specifically for: send the described each downlink member through described processing unit precoding processing respectively The business data transmission of carrier wave controls information.
When the base station applies that the embodiment of the present invention provides is under the scene that multiple downlink member carriers are polymerized, in the present invention Another embodiment in:
Precoding information in the first control information that transmitting element 10 sends includes: at least one downlink member carrier The precoding information corresponding to business data transmission control information of each downlink member carrier；
Processing unit 11 is additionally operable to: the independently business data transmission control of each downlink member carrier described in chnnel coding Information processed, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Independent channel coding and map after, processing unit 11 specifically for: be respectively adopted the precoding information of described correspondence, The described business data transmission carrying out independent channel coding and mapping is controlled information and carries out precoding processing.
When the base station applies that the embodiment of the present invention provides is under the scene of multiple UE, in one embodiment of the present of invention In:
Precoding information in the first control information that transmitting element 10 sends includes: each at least one subscriber equipment The precoding information corresponding to business data transmission control information of subscriber equipment；
Processing unit 11 is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath；
Independent channel coding after, processing unit 11 specifically for: be respectively adopted the precoding information of described correspondence, to described The business data transmission of each subscriber equipment of independent channel coding controls information and carries out precoding processing；
Transmitting element 10 is specifically for sending the described each subscriber equipment through described processing unit precoding processing respectively Business data transmission control information.
When the base station applies that the embodiment of the present invention provides is under the scene of multiple UE, in an alternative embodiment of the invention In:
Precoding information in the first control information that transmitting element 10 sends includes: each at least one subscriber equipment The precoding information corresponding to business data transmission control information of subscriber equipment；
Processing unit 11 is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Processing unit 11 specifically for: be respectively adopted the precoding information of described correspondence, carry out independent channel volume to described Code and the business data transmission mapped control information and carry out precoding processing.
When the base station applies that the embodiment of the present invention provides is under the scene of multiple UE, in an alternative embodiment of the invention In:
Processing unit 11 is additionally operable to: the independently business of each subscriber equipment at least one subscriber equipment of chnnel coding Precoding information corresponding to Data Transmission Controlling information；
Transmitting element 10 specifically for: send respectively described independent channel coding each subscriber equipment business datum pass The precoding information that defeated control information is used；
Processing unit 11 is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Processing unit 11 specifically for: be respectively adopted the precoding information of described correspondence, carry out independent channel volume to described Code and the business data transmission mapped control information and carry out precoding processing.
Corresponding with the method for reseptance of aforementioned control information, the embodiment of the present invention additionally provides a kind of UE, as shown in Figure 10, Including:
Transmit-Receive Unit 20, for receiving the first control information, described first control information includes that the second control information is adopted Precoding information, described second control information include business data transmission control information, receive use described precoding letter Breath carries out the described second control information of precoding processing；
Decoding unit 21, for according to described precoding information, is decoded described second control information processing；
Transmit-Receive Unit 20 is additionally operable to the second control information according to described decoding process, carries out business data transmission.
The UE that the embodiment of the present invention provides, it is possible to control message by first and know that the precoding of the second control information is believed Breath, so, the second precoding information controlling information can be determined according to practical situations such as channel conditions, optimizes second The transmission performance of control information, therefore, when the second control information is transmitted a number of information bit and reaches performance requirement, The higher channel coding method of code check can be used, i.e. this number of bits of encoded less code word bits can be become, Such second control information just can take less resource, i.e. decreases the resource overhead that the second control information takies, effectively Improve the utilization of resources rate of communication system.
Wherein, the precoding information that Transmit-Receive Unit 20 receives includes at least one information following:
Pre-coding matrix, precoding vector, the data Layer number of plies, the antenna port that data Layer is corresponding is corresponding with antenna port Demodulation pilot tone scrambling mark.
Further, the first control information that Transmit-Receive Unit 20 receives also includes at least one information following:
Ascending control channel PUCCH information, the physical time-frequency resource at described second control information place, described second control The modulation coding mode of information, the described second organized formats and described second controlling information control the transmission means of information.
At this moment, Transmit-Receive Unit 20 specifically for controlling the second control letter of information and described decoding process according to described first Breath carries out business data transmission, and that i.e. include according to the first control information and that the second control information includes business datum passes Defeated control information carries out transmission and the reception of business datum.
One of ordinary skill in the art will appreciate that: all or part of flow process realizing said method embodiment can be passed through The hardware that computer program instructions is relevant completes, and aforesaid program can be stored in a computer read/write memory medium, This program upon execution, performs to include the step of said method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc Or the various medium that can store program code such as CD.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (22)

1. the sending method controlling information, it is characterised in that including:
Sending the first control information, described first control information includes the precoding information that described second control information is used, Described second control information includes that business data transmission controls information；
Use described precoding information that described second control information is carried out precoding processing；
The described second control information of precoding processing is carried out described in transmission.
Sending method the most according to claim 1, it is characterised in that described precoding information includes at least one letter following Breath:
Pre-coding matrix, precoding vector, the data Layer number of plies, the antenna port that data Layer is corresponding, the solution corresponding with antenna port Adjust the scrambling mark of pilot tone.
Sending method the most according to claim 1, it is characterised in that described first control information also includes following at least one The information of kind:
Ascending control channel PUCCH information, the physical time-frequency resource at described second control information place, described second control information Modulation coding mode, described second control information organized formats and described second control information transmission means.
Sending method the most according to claim 3, it is characterised in that the described second transmission means controlling information includes sending out Penetrate diversity mode or precoding processing mode.
5. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under the scene of carrier aggregation:
Described business data transmission controls information and includes: the business data transmission of at least one downlink member carrier controls information；
Described precoding information is the precoding letter of the business data transmission control information of at least one downlink member carrier described Breath；
Described sending method farther includes: the business data transmission of combined channel coding at least one downlink member carrier described Control information；
The described precoding information of described employing carries out precoding processing to described second control information and includes: described in employing at least one The business data transmission of individual downlink member carrier controls the precoding information of information to the described business carrying out combined channel coding Data Transmission Controlling information carries out precoding processing.
Sending method the most according to claim 5, it is characterised in that
Described first control information also includes the number of at least one downlink member carrier described or described at least one is descending The identity of member carrier.
7. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under the scene of carrier aggregation:
Described precoding information includes: the business data transmission control of each downlink member carrier at least one downlink member carrier Precoding information corresponding to information processed；
Described sending method farther includes: the independently business data transmission of each downlink member carrier described in chnnel coding Control information；
The described precoding information of described employing carries out precoding processing to described second control information and includes: it is described right to be respectively adopted The precoding information answered, the business data transmission of each downlink member carrier encoding described independent channel controls information and carries out Precoding processing；
The described second control information carrying out precoding processing described in described transmission includes: carry out at precoding described in sending respectively The business data transmission of described each downlink member carrier of reason controls information.
8. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under the scene of carrier aggregation:
Described precoding information includes: the business data transmission control of each downlink member carrier at least one downlink member carrier Precoding information corresponding to information processed；
Described sending method farther includes: the independently business data transmission of each downlink member carrier described in chnnel coding Control information, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
The described precoding information of described employing carries out precoding processing to described second control information and includes:
It is respectively adopted the precoding information of described correspondence, to the described business data transmission control carrying out independent channel coding and mapping Information processed carries out precoding processing.
9. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under the scene of multiple subscriber equipmenies:
Described precoding information includes: at least one subscriber equipment, the business data transmission of each subscriber equipment controls information institute Corresponding precoding information；
Described sending method farther includes: independently the business data transmission of each subscriber equipment described in chnnel coding controls Information；
The described precoding information of described employing carries out precoding processing to described second control information and includes: it is described right to be respectively adopted The precoding information answered, the business data transmission of each subscriber equipment encoding described independent channel controls information and prelists Code processes；
The described second control information carrying out precoding processing described in described transmission includes:
The business data transmission of the described each subscriber equipment carrying out precoding processing described in sending respectively controls information.
10. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under there is multiple subscriber equipment scene:
Described precoding information includes: at least one subscriber equipment, the business data transmission of each subscriber equipment controls information institute Corresponding precoding information；
Described sending method farther includes: independently the business data transmission of each subscriber equipment described in chnnel coding controls Information, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
The described precoding information of described employing carries out precoding processing to described second control information and includes: it is described right to be respectively adopted The precoding information answered, controls information to the described business data transmission carrying out independent channel coding and mapping and carries out at precoding Reason.
11. according to the sending method described in any one of Claims 1-4, it is characterised in that
Under multiple subscriber equipment scenes:
Described sending method farther includes: the independently industry of each subscriber equipment at least one subscriber equipment of chnnel coding Business precoding information corresponding to Data Transmission Controlling information；
Described transmission first controls information and includes: send the business datum of each subscriber equipment of described independent channel coding respectively The precoding information that transmission control information is used；
Described sending method farther includes: independently the business data transmission of each subscriber equipment described in chnnel coding controls Information, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
The described precoding information of described employing carries out precoding processing to described second control information and includes:
It is respectively adopted the precoding information of described correspondence, to the described business data transmission control carrying out independent channel coding and mapping Information processed carries out precoding processing.
12. 1 kinds of base stations, it is characterised in that including:
Transmitting element, for sending the first control information, described first control information includes that described second control information is used Precoding information, described second control information include business data transmission control information；
Processing unit, is used for using described precoding information that described second control information is carried out precoding processing；
Described transmitting element is additionally operable to send the described second control information through described processing unit precoding processing.
13. base stations according to claim 12, it is characterised in that described precoding information includes at least one letter following Breath:
Pre-coding matrix, precoding vector, the data Layer number of plies, the antenna port that data Layer is corresponding, the solution corresponding with antenna port Adjust the scrambling mark of pilot tone.
14. base stations according to claim 12, it is characterised in that described first control information also include following at least one Information:
Ascending control channel PUCCH information, the physical time-frequency resource at described second control information place, described second control information Modulation coding mode, described second control information organized formats and described second control information transmission means.
15. base stations according to claim 12, it is characterised in that the described second transmission means controlling information includes launching Diversity mode or precoding processing mode.
16. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene of carrier aggregation；
Described business data transmission controls information and includes: the business data transmission of at least one downlink member carrier controls information；
Described precoding information is the precoding letter of the business data transmission control information of at least one downlink member carrier described Breath；
Described processing unit is additionally operable to: the business data transmission of combined channel coding at least one downlink member carrier described controls Information；
Described processing unit specifically for: use the business data transmission of at least one downlink member carrier described to control information Precoding information controls information to the described business data transmission carrying out combined channel coding and carries out precoding processing.
17. base stations according to claim 16, it is characterised in that
The described first control information that described transmitting element sends also include at least one downlink member carrier described number or The identity of at least one downlink member carrier described in person.
18. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene of carrier aggregation；
Described precoding information includes: the business data transmission control of each downlink member carrier at least one downlink member carrier Precoding information corresponding to information processed；
Described processing unit is additionally operable to: independently the business data transmission of each downlink member carrier described in chnnel coding controls Information；
Described processing unit specifically for: being respectively adopted the precoding information of described correspondence, encode described independent channel is every The business data transmission of individual downlink member carrier controls information and carries out precoding processing；
Described transmitting element specifically for: send respectively through described processing unit precoding processing described each downlink member carry The business data transmission of ripple controls information.
19. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene of carrier aggregation；
Described precoding information includes: the business data transmission control of each downlink member carrier at least one downlink member carrier Precoding information corresponding to information processed；
Described processing unit is additionally operable to: independently the business data transmission of each downlink member carrier described in chnnel coding controls Information, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Described processing unit specifically for: be respectively adopted the precoding information of described correspondence, carry out independent channel coding to described Control information with the business data transmission mapped and carry out precoding processing.
20. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene at multiple subscriber equipmenies；
Described precoding information includes: at least one subscriber equipment, the business data transmission of each subscriber equipment controls information institute Corresponding precoding information；
Described processing unit is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath；
Described processing unit specifically for: being respectively adopted the precoding information of described correspondence, encode described independent channel is every The business data transmission of individual subscriber equipment controls information and carries out precoding processing；
Described transmitting element is specifically for sending the described each subscriber equipment through described processing unit precoding processing respectively Business data transmission controls information.
21. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene at multiple subscriber equipmenies；
Described precoding information includes: at least one subscriber equipment, the business data transmission of each subscriber equipment controls information institute Corresponding precoding information；
Described processing unit is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Described processing unit specifically for: be respectively adopted the precoding information of described correspondence, carry out independent channel coding to described Control information with the business data transmission mapped and carry out precoding processing.
22. according to the base station described in any one of claim 12 to 15, it is characterised in that
Described base station applies is under the scene at multiple subscriber equipmenies；
Described processing unit is additionally operable to: the independently business number of each subscriber equipment at least one subscriber equipment of chnnel coding According to the precoding information corresponding to transmission control information；
Described transmitting element specifically for: send the business data transmission of each subscriber equipment of described independent channel coding respectively The precoding information that control information is used；
Described processing unit is additionally operable to: independently the business data transmission of each subscriber equipment described in chnnel coding controls letter Breath, controls information MAP to different data Layers by the described business data transmission carrying out independent channel coding；
Described processing unit specifically for: be respectively adopted the precoding information of described correspondence, carry out independent channel coding to described Control information with the business data transmission mapped and carry out precoding processing.
CN201610830330.2A 2011-04-20 2011-04-20 Method and device for transmitting and receiving control information Active CN106301690B (en)

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