CN104041105A - Channel quality reporting method, device and system - Google Patents

Channel quality reporting method, device and system Download PDF

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Publication number
CN104041105A
CN104041105A CN201280002511.6A CN201280002511A CN104041105A CN 104041105 A CN104041105 A CN 104041105A CN 201280002511 A CN201280002511 A CN 201280002511A CN 104041105 A CN104041105 A CN 104041105A
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China
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channel quality
data stream
channel
multiple data
spatial coherence
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肖洁华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels

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

Abstract

Embodiments of the present invention provide a channel quality reporting method, device, and system. The method comprises: determining a sending state of a downlink data stream according to indication information, sent by a base station, for indicating a channel characteristic; and when the sending state of the downlink data stream is that multiple data streams are sent, acquiring channel quality information of the multiple data streams, and sending the channel quality information to the base station. In the channel quality reporting method, device, and system provided by the embodiments of the present invention, channel information sent by a base station is received and a sending state of a downlink data stream of a physical channel is determined, channel quality information corresponding to multiple data streams is acquired when the multiple data streams are sent, and the channel quality information is reported to the base station, so that the base station can accurately select a suitable downlink data stream sending manner in the case of MIMO according to the channel quality information of the reported multiple data streams.

Description

Channel quality reporting method, device and system
Channel quality report method, device and system
The present embodiments relate to the communication technology, more particularly to a kind of channel quality report method, device and system for technical field.Background technology
In GSM/EDGE wireless communication networks (GSM/EDGE Radio Access Network;Hereinafter referred to as：GERAN) in system, in order that the sending method of downlink data can accurately be determined by obtaining the base station of network side, such as selecting the appropriate coded system of suitable transmit power, selection, it is required for reporting the quality information of down channel from user equipment to base station, to cause base station to determine the sending method of downlink data according to the channel quality information.In the prior art, GERAN system customer equipments only report a channel quality reporting to a physical channel of same time-frequency, and the channel quality information that base station is reported according to the channel quality reporting determines the downlink data sending method of the physical channel.
And introduce multiple-input and multiple-output（ Multiple-Input Multiple-Out-put;Hereinafter referred to as：MIMO) after technology, due to introducing the dimension in space, so that being possible to the multiple data flows of parallel transmission in a physical channel of original identical running time-frequency resource, add channel resource, base station needs to determine the sending method of downlink data according to the channel quality of the multiple data stream, but, due to report method at present still without multiple data stream channel quality, so that base station can not obtain enough foundation information in the case of MIMO, so that suitable data sender's formula can not be selected accurately.The content of the invention
The embodiment of the present invention provides a kind of channel quality report method, device and system, to realize reporting for the multiple data stream channel quality in the case of MIMO.
First aspect there is provided a kind of channel quality report method, including：
The configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；
When the transmission state of the downstream data flow sends for multiple data stream, the multiple data stream channel quality information is obtained, and the channel quality information is sent to the base station. In the first possible embodiment of first aspect, the configured information includes：The transmission state of training sequence or downstream data flow.
With reference to the first possible embodiment of first aspect or first aspect, in second of possible embodiment, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
With reference to second of possible embodiment of first aspect, in the third possible embodiment of first aspect, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value downstream data flow sending method.
With reference to the third possible embodiment of first aspect, in the 4th kind of possible embodiment of first aspect, it is described to send the channel quality information to before the base station when the spatial coherence value is the recommended value of the downstream data flow sending method, in addition to：
The characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value downstream data flow sending method downstream data flow sending method of the downstream data flow sending method is obtained.
It is described to send the channel quality information to the base station in the 5th kind of possible embodiment of first aspect with reference to the first any one into the 4th kind of possible embodiment of first aspect or first aspect, be specially：The channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message to send to the base station.
With reference to the 5th kind of possible embodiment of first aspect, in the 6th kind of possible embodiment of first aspect, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are newly increased in downlink grouped confirmation/non-acknowledgement message.
Second aspect there is provided a kind of channel quality report method, including： The configured information for indicating channel characteristics is sent to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；
Receive the channel quality information for the multiple data stream that the user equipment is sent.
In the first possible embodiment of second aspect, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
With reference to the first possible embodiment of second aspect, in second of possible embodiment of second aspect, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value downstream data flow sending method.
With reference to second aspect, second of possible embodiment of the possible embodiment of the first of second aspect or second aspect, it is described to receive the channel quality information that the user equipment is sent in the third possible embodiment of second aspect, be specially：
Downlink grouped confirmation/non-acknowledgement message that the user equipment is sent is received, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
With reference to the third possible embodiment of second aspect, in the 4th kind of possible embodiment of second aspect, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream；
Downlink grouped confirmation/the non-acknowledgement message includes：
The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the mass parameter of multiple data stream place subchannel and newly increase newly increased；
Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
The third aspect there is provided a kind of user equipment, including：
Determining module, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow； Acquisition module, for when the transmission state of the downstream data flow sends for multiple data stream, obtaining the channel quality information of the multiple data stream；
Sending module, for the channel quality information to be sent to the base station.
In the first possible embodiment of the third aspect, the configured information includes：The transmission state of training sequence or downstream data flow.
With reference to the first possible embodiment of the third aspect or the third aspect, in second of possible embodiment of the third aspect, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
With reference to second of possible embodiment of the third aspect, in the third possible embodiment of the third aspect, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the correspondence multiple data stream or be downstream data flow sending method recommended value downstream data flow sending method.
With reference to the third possible embodiment of the third aspect, in the 4th kind of possible embodiment of the third aspect, downstream data flow sending method also includes：
Comparison module, for when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value downstream data flow sending method of the downstream data flow sending method is obtained.
With reference to any one into the 4th kind of possible embodiment of the first possible embodiment of the third aspect or the third aspect, in the 5th kind of possible embodiment of the third aspect, the sending module is sent to the base station specifically for the channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message.
With reference to the 5th kind of possible embodiment of the third aspect, in the 6th kind of possible embodiment of the third aspect, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream；
Downlink grouped confirmation/the non-acknowledgement message includes：
The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；
Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, for holding One in the channel quality parameter of subchannel where carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
Fourth aspect there is provided a kind of base station, including：
Information sending module, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；
Receiving module, the channel quality information for receiving the multiple data stream that the user equipment is sent.In the first possible embodiment of fourth aspect, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
With reference to the first possible embodiment of fourth aspect, in second of possible embodiment of fourth aspect, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value downstream data flow sending method.
With reference to second of possible embodiment of the first possible embodiment or fourth aspect of fourth aspect, fourth aspect, in the third possible embodiment of fourth aspect, the receiving module carries the channel quality information specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message.
There is provided a kind of system in terms of 5th, including：The base station in user equipment and any possible embodiment of fourth aspect in any possible embodiment of the third aspect.
There is provided a kind of user equipment in terms of 6th, including：
Processor, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；When the transmission state of the downstream data flow sends for multiple data stream, the channel quality information of the multiple data stream is obtained；The channel quality information is sent to the base station；
Memory, the channel quality information for storing the multiple data stream.
With reference to the 6th aspect, in the first possible embodiment, the configured information includes：The transmission state of training sequence or downstream data flow.
With reference to the 6th aspect or the first possible embodiment of the 6th aspect, in second of possible embodiment, the channel quality information includes：The mass parameter of subchannel where the multiple data stream And/or for representing the spatial coherence value of the spatial coherence between the multiple data stream.With reference to second of possible embodiment of the 6th aspect, in the third possible embodiment, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
With reference to the third possible embodiment of the 6th aspect, in the 4th kind of possible embodiment, the processor, it is additionally operable to when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
With reference to the 6th aspect or any one of the first possible embodiment into the 4th kind of possible embodiment of the 6th aspect, in the 5th kind of possible embodiment, the processor, is additionally operable to the channel quality information being carried on downlink grouped confirmation/non-acknowledgement message and sends to the base station.
With reference to the 5th kind of possible embodiment of the 6th aspect, in the 6th kind of possible embodiment, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；
Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
There is provided a kind of base station in terms of 7th, including：
Processor, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；Receive the channel quality information for the multiple data stream that the user equipment is sent；
Memory, the channel quality information for storing the multiple data stream. With reference to the 7th aspect, in the first possible embodiment, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
With reference to the first possible embodiment of the 7th aspect, in second of possible embodiment, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
With reference to second of possible embodiment of the 7th aspect, the first possible embodiment of the 7th aspect or the 7th aspect, in the third possible embodiment, the processor, specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
Channel quality report method provided in an embodiment of the present invention, device and system have the technical effect that：The configured information sent by receiving base station determines the transmission state of the downstream data flow of a physical channel, and when multiple data stream is sent, obtain the corresponding channel quality information of the multiple data stream, the channel quality information is reported into base station, realize reporting for the multiple data stream channel quality in the case of MIMO, enable base station according to the channel quality information of the multiple data stream reported, the sending method of suitable downstream data flow is accurately selected in the case of MIMO.Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of channel quality report method embodiment one of the present invention；
Fig. 2 is the flow chart of channel quality report method embodiment two of the present invention；
Fig. 3 is the flow chart of channel quality report method embodiment three of the present invention；
Fig. 4 A and Fig. 4 B are (hereinafter referred to as：It is Fig. 4) structural representation of the channel model of blunt embodiment of the method four on channel quality of the present invention；
Fig. 5 is the spatial coherence value of channel quality report method embodiment five of the present invention and the schematic diagram of difference threshold；
Fig. 6 is sent in different spaces for single dual data stream of channel quality report method embodiment six of the present invention The schematic diagram of handling capacity under relevance values；
Fig. 7 is the structural representation of the channel quality information memory space of channel quality report method embodiment seven of the present invention；
Fig. 8 is the structural representation of user equipment embodiment eight of the present invention；
Fig. 9 is the structural representation of user equipment embodiment nine of the present invention；
Figure 10 is the structural representation of base station embodiment ten of the present invention；
Figure 11 is the structural representation of present system embodiment 11；
Figure 12 is the entity structure schematic diagram of user equipment embodiment of the present invention；
Figure 13 is the entity structure schematic diagram of base station embodiment of the present invention.Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Fig. 1 is the flow chart of channel quality report method embodiment one of the present invention, and the method for the present embodiment is, for example, that user equipment is performed；As shown in figure 1, the channel quality report method of the present embodiment, including：
Step 101, the configured information for being used to indicate channel characteristics sent according to base station, determine the transmission state of downstream data flow.
In this step, for indicating that the configured information of channel characteristics includes：The transmission state of training sequence or downstream data flow；User equipment determines the transmission state of downstream data flow according to the configured information for being used to indicate channel characteristics for receiving base station transmission.Wherein, the transmission state of downstream data flow is referred in a physical channel while there are several downstream transmissions, it is specifically as follows multiple data stream to send and single data stream transmission, multiple data stream sends the data flow transmission in a physical channel simultaneously represented in the presence of 2 or more than 2.
Step 102, when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream, and the channel quality information is sent to the base station.
Wherein, the channel quality information includes：The channel quality parameter of subchannel where multiple data stream and/or the spatial coherence value for representing the spatial coherence between multiple data stream. In this step, user equipment sends the channel quality parameter of the multiple data stream of acquisition to base station, to cause base station to determine the sending method of downstream data flow according to the channel quality parameter of the multiple data stream, the sending method of the downstream data flow includes single data stream, the selection of multiple data stream sending method, may also comprise the Modulation and Coding Scheme of each data flow data（ Modulation and Coding Scheme;Hereinafter referred to as：MCS) selection, transmit power etc..
The channel quality report method that the present embodiment is provided, user equipment determines the transmission state of downstream data flow by receiving the configured information that base station is sent, and when multiple data stream is sent, obtain the channel quality information of the multiple data stream, the channel quality information is reported into base station, realize reporting for the multiple data stream channel quality in the case of MIMO, enable base station according to the channel quality information of the multiple data stream reported, the sending method of suitable downstream data flow is accurately selected in the case of MIMO.
Fig. 2 is the flow chart of channel quality report method embodiment two of the present invention, and the method for the present embodiment is, for example, that base station is performed；As shown in Fig. 2 the channel quality report method of the present embodiment, including：
Step 201, to user equipment send the configured information for indicating channel characteristics.
In this step, base station sends the configured information to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information of the transmission, and when the transmission state of downstream data flow sends for multiple data stream, obtain the multidata channel quality information.Wherein, multiple data stream, which is sent, represents to transmit in a physical channel simultaneously in the presence of the data flow of 2 or more than 2 so that user equipment can send the state that state understands the data flow included in present physical channel according to the multiple data stream.
Step 202, the channel quality information for receiving the multiple data stream that the user equipment is sent.
In this step, the channel quality information includes：The channel quality parameter of subchannel where multiple data stream and/or the spatial coherence value for representing the spatial coherence between multiple data stream..
Optionally, methods described also includes step 203, specific as follows：
Step 203, base station determine downstream data flow sending method according to the channel quality information.
In this step, the downstream data flow sending method of base station includes single data stream sending method and multiple data stream sending method, may also comprise MCS selections, transmit power of each data flow data etc..Wherein, single data stream sending method refers to sending method of the data from identical data flow sent, both can be that single antenna transmission can also be that multiple antennas is sent.Further, single data stream data multiple antennas sending method can be sent using delay diversity（Here so that double antenna is sent as an example, two antennas use identical training sequence code TSC1, simply have certain delay between the data of two antennas when sending）And space-time/space-frequency code Send（Two antennas use orthogonal training sequence code TSC1, TSC2) two kinds of different sending methods.Multiple data stream sending method refers to sending method of the data from different data flows sent.
Specifically, base station can determine that downstream data flow sending method takes the sending method of single data stream or multiple data stream according to the channel quality parameter of the multiple data stream received.
The channel quality report method that the present embodiment is provided, base station is by receiving the channel quality information of the multiple data stream of user equipment to report, realize reporting for the multiple data stream channel quality in the case of MIMO, enable base station according to the channel quality information of the multiple data stream reported, the sending method of suitable downstream data flow is accurately selected in the case of MIMO.
Fig. 3 is the flow chart of channel quality report method embodiment three of the present invention, and the method for the present embodiment is that user equipment and base station are performed jointly；As shown in figure 3, the channel quality report method of the present embodiment, including：Step 301, base station send the configured information for indicating channel characteristics to user equipment.
In this step, base station sends the configured information to user equipment, and user equipment determines the transmission state of downstream data flow according to the configured information of the transmission of the base station.
In the present embodiment, when the transmission state of the downstream data flow sends for multiple data stream, expression is currently to carry out data transmission with multiple data flow sending methods.
Wherein, the configured information can directly include the transmission state of downstream data flow, and such as multiple data stream sends status information, so that user equipment directly determines that the multiple data stream sends status information.The transmission state of downstream data flow may be embodied in the message content of layer three, can also pass through layer one（Physical layer）Highly reliable information bit transmission；Or,
The configured information does not include the transmission status information of downstream data flow, but including training sequence, then the training sequence that user equipment is sent according to base station determines that downstream data flow sends state, specifically includes：User equipment receives the training sequence code that base station is sent；The transmission state that user equipment obtains downstream data flow according to the training sequence code is that multiple data stream is sent.Specifically, base station sends training sequence code to user equipment first, the training sequence code includes all training sequence codes that multiple data stream may be used, and such as dual data stream situation needs 2 training sequence codes.
Step 302, user equipment receive the configured information of the transmission, and the transmission state of downstream data flow is determined according to the configured information of the transmission.
In this step, if the configured information that user equipment is received is the transmission state of downstream data flow, user equipment directly determines that data flow sends state according to the configured information；If the configured information that user equipment is received is the training sequence code that base station is sent（That is training sequence）, then user equipment receives the training sequence After row code, data flow is obtained by training sequence code blind Detecting and sends state.
Step 303, when the transmission state of downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream.
The channel quality information includes：The channel quality parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
Due to accurately selecting suitable data sender's formula can be with maximize handling capacity in the case of Μ Ι Μ Ο, and the spatial coherence value between the selection of data sender's formula and multiple data stream is relevant, therefore, for maximize handling capacity, it is necessary to include the spatial coherence value between multiple data stream in the channel quality information that user equipment is obtained.
In the present embodiment, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.Now by taking dual data stream as an example, the spatial coherence value of dual data stream can be obtained by following steps：
Step 1, the wireless channel environment under Μ Ι Μ Ο systems is estimated, obtains channel matrix Η.Wherein, channel estimation methods are as follows.
Fig. 4 Α and Fig. 4 Β are (hereinafter referred to as：It is Fig. 4) structural representation of the channel model of blunt embodiment of the method four on channel quality of the present invention, wherein, Fig. 4 Α are single-input single-output（ Single-Input Single -Out-put;Hereinafter referred to as：SISO) the structural representation of system channel model, Fig. 4 B are the structural representation of mimo system channel model.As shown in Figure 4 A, in SISO systems, Base Transceiver Station（Base Transceiver Station;Hereinafter referred to as：) and mobile station BTS（ Mobile Station;Hereinafter referred to as：MS single antenna single data stream sending method is used between), wherein X, Y represents BTS transmission data and MS reception data respectively, and h represents channel factors, and TSC1 represents training sequence code；As shown in Figure 4 B, exported in 2 inputs 2（2x2) in mimo system, double antenna dual data stream sending method is used between BTS and MS, wherein XI, X2, Yl, Υ 2 represents the reception data on two antennas of transmission data and MS on two antennas of BTS respectively, hl l, hl2, h21 and h22 represent channel factors, and TSC1, TSC2 represent training sequence code.
Due to for SISO systems： Wherein, channel factors are ^,i = l,2,L, it is additional noise.
H' estimation is to be estimated that it meets equation below by the reception signal of the channel by known array TSC1： 1=0
Wherein,Si, ' '=0, l, N_l is training sequence symbols, N is training sequence length.N=26 in the case of GERAN NSR.
In order to utilize training sequence section to greatest extent, have
Above formula is write as to the form of matrix, i.e. r=5+",
Wherein, r=[rL ... rN— JT, h = [h。 ... hL]T , n = [nL n N-l
SL SL-\
s SL+\ SL
'N- " J, be a known training sequence matrix (such as TSCi according to the principle of least square, (sHsYsH
Therefore, for mimo system：
In order to utilize training sequence section to greatest extent, training sequence portion in above-mentioned equation can be written as to the form of matrix with SISO principles：
r = S h + n . ,η f , h - [ V ,h2V ,ΜΤ ,Ηϋ1S2 is two known training sequence matrixes (such as TSC1, TSC2). Therefore, according to the principle of least square, '=(^ yw.Step 2, according to the channel matrix H under above-mentioned mimo system, the order or channel correlation matrix R of channel matrix H are obtained, wherein, the relation between correlation matrix R and channel matrix H is：
R = H HH Further, the order for the channel matrix H tried to achieve in step 2 can be applied in the follow-up recommended value for obtaining downstream data flow sending method, and the correlation matrix R tried to achieve in step 2 need to continue executing with step 3 to step 5.
Step 3, correlation matrix R characteristic value is calculated.
In this step, Jacobi method can be used, Cholesky decomposition methods, QR decomposition methods etc. calculate correlation matrix R characteristic value.
Step 4, correlation matrix R characteristic value difference is calculated.
In this step, the difference or its equivalent variations value of correlation matrix R characteristic value can be calculated, equivalence transformation value herein can be that characteristic value is carried out into the value after some unified conversion, then seek difference, for example, each characteristic value first is asked into logarithm and then seek difference；Difference is first either sought, other conversion are then carried out.It is referred to as characteristic value difference below for simplicity.
Step 5, channel correlation value is asked by correlation matrix R characteristic value difference.
In this step, first, the spatial coherence value of channel is divided into a limited number of particular value as needed, general, it can be selected according to channel relevancy required precision in the number of particular value, the present embodiment, the spatial coherence value of channel is divided into following four particular value, such as cor=0, cor=0.3, cor=0.6 and cor=0.9.
Then, the statistical value for the characteristic value difference for determining each correlation lower channel correlation matrix is emulated by channel model, and difference threshold is set.The characteristic value difference statistical value for example tried to achieve according to above-mentioned several specific correlations is followed successively by 5.6403 (relative to the channel of cor=0）, 7.9048 (relative to the channel of cor=0.3）, 10.1417 (relative to the channel of cor=0.6）, 12.0470 (relative to the channel of cor=0.9）, Tl=6 (relative to the channel of cor=0) are selected with this, T2=8 (relative to the channel of cor=0.3), T3=10.5 are (relative to the channel of cor=0.6）, T4=12.5 are (relative to the channel of cor=0.9）For the difference threshold under each correlation.
Finally, the characteristic value difference obtained according to actually calculating is compared with the difference threshold set, obtains present channel relevance values.Fig. 5 is the spatial coherence value of channel quality report method embodiment five of the present invention and the schematic diagram of difference threshold, as shown in figure 5, when the characteristic value difference of channel correlation matrix is less than difference threshold T1, relevance values are 0;When the characteristic value difference of channel correlation matrix is more than or equal to difference threshold T1 and is less than difference threshold T2, relevance values are 0.3;When the characteristic value difference of channel correlation matrix is more than or equal to difference threshold T2 and is less than difference threshold T3, relevance values are 0.6;When the characteristic value difference of channel correlation matrix is more than or equal to difference threshold T3 and is less than difference threshold T4, relevance values are 0.9;When the characteristic value difference of channel correlation matrix is more than or equal to difference threshold T4, relevance values are 1. Therefore, in the present embodiment, the value obtained for step 1 to step 5 has：
When the quantized value of the channel relevancy of subchannel where the spatial coherence value is the correspondence multiple data stream, the present channel relevance values obtained in correspondence above-mentioned steps 5, the channel relevancy is quantified, a limited number of data bit is such as selected to represent the quantized value of channel relevancy, so that base station determines sending method according to the quantized value of the channel relevancy, it is as shown in the table, for the spatial coherence value of embodiment illustrated in fig. 5 five, 3 bits can be used to represent the quantized value of channel relevancy.
It is described to send the channel quality information to before the base station when the spatial coherence value is the recommended value of downstream data flow sending method, in addition to：The characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
Specifically, the acquisition of the recommended value of the downstream data flow sending method includes two ways.Mode one：The present channel relevance values obtained in correspondence above-mentioned steps 5, user equipment combines SNR thresholdings under each correlation according to channel correlation, such as SNR1 and SNR2, carry out single current, double fluid and send the judgement of suggestion, obtain the recommended value of downstream data flow sending method；Mode two：The order of the channel matrix H obtained in correspondence above-mentioned steps 2, user equipment carries out single current, double fluid and sends the judgement of suggestion, obtain the recommended value of downstream data flow sending method according to the average value combination threshold value of the order of channel matrix.
Specifically, in the present embodiment, by taking parallel transmission two data streams in a physical channel as an example.Wherein, SNR thresholdings, such as SNR1 and SNR2 under each correlation are combined according to channel correlation for above-mentioned user equipment, carries out single current, double fluid and send the judgement of suggestion, obtain the mode one of the recommended value of downstream data flow sending method：Here the precision for channel relevancy only have selected 2 particular value cor=0 and cor=0.6, and predetermined threshold value SNR1 and SNR2 are by precalculating what is obtained to the emulation of handling capacity under single current and double-current sending mode under different channels correlation under certain channel model.Fig. 6 is channel quality of the present invention Single dual data stream of report method embodiment six is sent in the schematic diagram of handling capacity under different spaces relevance values.As shown in Figure 6, when SNR1 is channel relevancy cor=0, single current SNR value corresponding with double-current throughput curve crosspoint, for two data streams spatial coherence value cor=0 when predetermined threshold value, when SNR2 is channel relevancy cor=0.6, single current SNR value corresponding with double-current throughput curve crosspoint, predetermined threshold value when being the spatial coherence value cor=0.6 of two data streams.During practical communication, in user equipment side, the channel correlation value obtained according to the step 5 of step 303 selects corresponding SNR threshold values, selects SNR2 to be thresholding when such as channel correlation value is 0.6, actually measured SNR value is compared with predetermined threshold value SNR2.Specifically compare is with decision method：When comparative result is SNR<During SNR2, the handling capacity that single data stream is sent is more than the handling capacity that dual data stream is sent, therefore, and user equipment court verdict is is proposed with single data stream sending method, so as to maximize handling capacity；When comparative result is SNR>During SNR2, the handling capacity that single data stream is sent is less than the handling capacity that dual data stream is sent, therefore, and user equipment court verdict is is proposed with dual data stream sending method, so as to maximize handling capacity；When comparative result is SNR=SNR2, the handling capacity that single data stream is sent is equal to the handling capacity that dual data stream is sent, therefore, and user equipment court verdict both can be to be proposed with single data stream transmission, or be proposed with dual data stream transmission.
It should be noted that the channel matrix, characteristic value difference proposed in the present embodiment are all a statistics in certain time.The need for an ancient weapon made of bamboo is appropriate at one in the chronomere of feedback channel correlation, such as one burst (burst or time slot）, the characteristic value difference of channel correlation matrix has 100, then the characteristic value difference being compared with predetermined threshold value is the average value of this 100 differences.
For average value combination threshold value of the user equipment according to the order of channel matrix, carry out single current, double fluid and send the judgement of suggestion, obtain the mode two of the recommended value of downstream data flow sending method：It should be noted that, the order of channel matrix is also the statistical value in certain time, double fluid send in the case of be a series of 1 and 2 assembly average, here the median 1.5 that 1 and 2 can be taken is thresholding, statistical result is compared with the thresholding, expression suggestion single current less than 1.5 is sent, and the expression suggestion double fluid more than or equal to 1.5 is sent.
Step 304, user equipment send the channel quality information to the base station.
In this step, the channel quality information includes the spatial coherence value for the spatial coherence respectively between the multiple channel quality parameters and/or the multiple data stream of subchannel where the multiple data stream that measurement is obtained.
Specifically, when the spatial coherence value between the multiple data stream is the quantized value of the channel relevancy, the letter that user equipment is directly obtained the step 5 of the multiple channel quality parameter and step 303 The spatial coherence value that road relevance values are converted into channel relevancy quantized value data bit, i.e. channel issues base station, sending method of the base station according to the empirically determined single current of spatial coherence value or double fluid of channel quality parameter and channel.
When the spatial coherence value between the multiple data stream is the recommended value of downstream data flow sending method, user equipment can select employing mode one or mode two to obtain the recommended value of the downstream data flow sending method, and send the recommended value of the multiple channel quality parameter and the downstream data flow sending method to base station, base station determines the sending method of single current or double fluid according to the recommended value of channel quality parameter and downstream data flow sending method.
Specifically, the channel quality information is sent to the base station described in the present embodiment, is specially：The channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message to send to the base station.
When the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：Multiple channel cells of the channel quality parameter of subchannel where being respectively used to of newly increasing carries the multiple data flow and the related cells for being used to carry the spatial coherence value newly increased or,
It is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are newly increased in downlink grouped confirmation/non-acknowledgement message.
Specifically, because present invention is generally directed to GERAN Packet data service, therefore, its channel quality information can be carried on general packet radio service technology (General Packet Radio Service respectively according to the difference of data service;Hereinafter referred to as：GPRS) in downlink grouped confirmation/non-acknowledgement message Packet Downlink Ack/Nack, enhanced data rates for gsm evolution technology（ Enhanced Data Rate for GSM Evolution;Hereinafter referred to as：EGPRS) in downlink grouped confirmation/non-acknowledgement message EGPRS Packet Downlink Ack/Nack and (the Enhanced Data Rate for GSM Evolution 2 of enhanced data rates for gsm evolution technology 2;Hereinafter referred to as：EGPRS2) in downlink grouped confirmation/non-acknowledgement message EGPRS Packet Downlink Ack/Nack Type 2, now by taking EGPRS downlink groupeds confirmation/non-acknowledgement message EGPRS Packet Downlink Ack/Nack as an example, EGPRS downlink groupeds confirmation/non-acknowledgement message structure mouthful is lower shown： < EGPRS Packet Downlink Ack/Nack message content > ::=
< DOWNLINK TFI： bit (5) >
< MS OUT OF MEMORY： bit(l)>
{ 0 I 1 < EGPRS Channel Quality Report：< EGPRS Channel Quality Report IE >>}
{ 0 I 1 < Channel Request Description：>Channel Request Description IE >>}
{ 0 I 1 < PFI : bit(7) > }
{ 0 I 1 < EPD A/N Extension length index： bit (6) >
< bit (expanded— EPDAN— extension— length(val(EPD A/N Extension length index))) & { < EPD A/N Extension Info >！ { bit** = <no string> } } > }
< EGPRS Ack/Nack Description：< EGPRS Ack/Nack Description IE »
{ 0 I 1 < Stream 1 Quality Report：< EGPRS Channel Quality Report IE >>
< Stream 2 Quality Report：< EGPRS Channel Quality Report IE >>
< Stream Correlation Report：< Channel Correlation Report IE >>}
<padding bits >;Wherein, " the EGPRS Channel Quality Report " of fourth line represents the cell of the EGPRS channel quality reportings under carrying single channel mode in the message structure, " the Quality Report of Stream 1 " of the tenth a line represents the channel cells of the channel quality reporting of data flow one under carrying MIMO method in the message structure, " the Quality Report of Stream 2 " of 12nd row represents the channel cells of the channel quality reporting of data flow two under carrying MIMO method, " the Stream Correlation Report " of 13rd row represents the related cells of the spatial coherence value of data flow one and data flow two under carrying MIMO method.
Then, base station receives the channel quality information that the user equipment is sent, and is specially：Downlink grouped confirmation/non-acknowledgement message that the user equipment is sent is received, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.In the present embodiment, base station receives EGPRS downlink groupeds confirmation/non-acknowledgement message that the user equipment is sent, and the EGPRS downlink groupeds confirmation/non-acknowledgement message carries the channel quality information.
It is interchangeable, in the channel quality message that user equipment is sent, also " EGPRS Channel Quality Report " can be given tacit consent in message structure can both carry the channel quality reporting represented when single channel is sent, also the quality report for representing one of data flow when multiple data stream is sent under MIMO method can be carried, it is then described to send the channel quality information to the base station, be specially：The channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message to send to the base station；Downlink grouped confirmation/the non-acknowledgement message includes：It is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple data stream channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are disappeared in the downlink grouped confirmation/non-acknowledgement Newly increased in breath.
Likewise, by taking EGPRS downlink groupeds confirmation/non-acknowledgement message EGPRS Packet Downlink Ack/Nack as an example, EGPRS downlink groupeds confirmation/non-acknowledgement message structure is as follows：< EGPRS Packet Downlink Ack/Nack message content >::=
< DOWNLINK TFI： bit (5) >
< MS OUT OF MEMORY： bit(l)>
{ 0 I 1 < EGPRS Channel Quality Report：< EGPRS Channel Quality Report IE >>}
{ 0 I 1 < Channel Request Description：>Channel Request Description IE >>}
{ 0 I 1 < PFI： bit(7) > }
{ 0 I 1 < EPD A/N Extension length index： bit (6) >
< bit (expanded— EPDAN— extension— length(val(EPD A/N Extension length index)))
& { < EPD A/N Extension Info >！ { bit** = <no string> } } > }
< EGPRS Ack/Nack Description：< EGPRS Ack/Nack Description IE »
{ 0 I 1 < Stream 2 Quality Report：< EGPRS Channel Quality Report IE >>
< Stream Correlation Report：< Channel Correlation Report IE >>}
<padding bits >;
Wherein, " the EGPRS Channel Quality Report " of fourth line can both represent to carry the cell of the EGPRS channel quality reportings under single channel mode in the message structure, the channel cells of the channel quality reporting of data flow one under carrying MIMO method can be represented again, " the Quality Report of Stream 2 " of the tenth a line represents the channel cells of the channel quality reporting of data flow two under carrying MIMO method in the message structure, " the Stream Correlation Report " of 12nd row represents the related cells of the spatial coherence value of data flow one and data flow two under carrying MIMO method.It is interchangeable, " the EGPRS Channel Quality Report " of fourth line may also indicate that the channel cells of the channel quality reporting of data flow two under carrying MIMO method in the message structure, then " the Quality Report of Stream 2 " of the tenth a line then represents to carry the channel cells of the channel quality reporting of data flow one under MIMO method in the message structure.
Then, base station receives the channel quality information that the user equipment is sent, and is specially：Downlink grouped confirmation/non-acknowledgement message that the user equipment is sent is received, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.In the present embodiment, base station receives EGPRS downlink groupeds confirmation/non-acknowledgement message that the user equipment is sent, and the EGPRS downlink groupeds confirmation/non-acknowledgement message carries the channel quality information.
The channel quality report method that the present embodiment is provided, user equipment determines the transmission state for the downstream data flow that a physical channel includes by receiving the configured information that base station is sent, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the corresponding channel quality parameter of the multiple data stream and spatial coherence value, simultaneously, the spatial coherence value is compared with predetermined threshold value, base station selects suitable sending method according to the comparative result and channel quality parameter, realizes the majority in the case of MIMO According to reporting for stream channel quality so that the channel quality information for the multiple data stream that base station can be reported according to this, suitable data sender's formula, and then maximize handling capacity are accurately selected in the case of MIMO.
Fig. 7 is the structural representation of the channel quality information memory space of channel quality report method embodiment seven of the present invention, as shown in Figure 7, so that double fluid is sent as an example, channel quality information is stored in user equipment side before sending to base station side, and memory space includes the measured value memory space of data flow one, the measured value memory space of data flow two and multiple data stream channel space correlation value memory space.In the present embodiment, by the channel quality parameter and the spatial coherence value, corresponding memory space is respectively put into.
It should be noted that the embodiment of the present invention is also applied for including in a physical channel situation of two or more data flow.
Fig. 8 is the structural representation of user equipment embodiment eight of the present invention, as shown in figure 8, the user equipment of the present embodiment includes determining module 11, acquisition module 12 and sending module 13.
Determining module 11, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow.
Acquisition module 12, for when the transmission state of the downstream data flow sends for multiple data stream, obtaining the channel quality information of the multiple data stream.
Sending module 13, for the channel quality information to be sent to the base station.
The device of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 1, and its implementing principle and technical effect is similar, and here is omitted.
Further, the configured information includes：The transmission state of training sequence or downstream data flow.Further, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
Further, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the correspondence multiple data stream or be downstream data flow downstream data flow sending method recommended value.
Further, sending module 13 is specifically for the multiple channel quality parameter and the spatial coherence value are sent to the base station, to cause the base station to determine downlink data sending method according to the channel quality parameter and the spatial coherence value.
Further, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream；Downlink grouped confirmation/the non-acknowledgement message includes：
What is newly increased is respectively used to the multiple of the channel quality parameter of subchannel where carrying the multiple data stream Channel cells and the related cells for being used to carry the spatial coherence value newly increased；
Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
Fig. 9 is the structural representation of user equipment embodiment nine of the present invention, as shown in Figure 9, the device of the present embodiment is on the basis of Fig. 8 shown device structures, further, also include comparison module 14, for when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, obtain the recommended value of the downstream data flow sending method.
The device of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 3, and its implementing principle and technical effect is similar, and here is omitted.
Figure 10 is the structural representation of base station embodiment ten of the present invention, as shown in Figure 10, and the base station of the present embodiment includes information sending module 21 and receiving module 22.
Information sending module 21, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream.
Receiving module 22, the channel quality information for receiving the multiple data stream that the user equipment is sent.
The device of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 2, and its implementing principle and technical effect is similar, and here is omitted.
On the basis of the apparatus structure shown in Figure 10, further, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
Further, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value. Further, the receiving module, specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
The device of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 3, and its implementing principle and technical effect is similar, and here is omitted.
Figure 11 is the structural representation of present system embodiment 11.As shown in figure 11, the system of the present embodiment includes user equipment 31 and base station 32.Wherein, user equipment 31 can use the structure of user equipment embodiment shown in Fig. 89, and base station 32 can use the structure of base station embodiment shown in Figure 10.
The system of the present embodiment, can be used for the technical scheme for performing embodiment of the method shown in Fig. 13.Figure 12 is the entity structure schematic diagram of user equipment embodiment of the present invention, as shown in figure 12, including processor 1201 and memory 1202;Wherein,
Processor 1201, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；When the transmission state of the downstream data flow sends for multiple data stream, the channel quality information of the multiple data stream is obtained；The channel quality information is sent to the base station；Memory 1202, the channel quality information for storing the multiple data stream.
Further, the configured information includes：The transmission state of training sequence or downstream data flow.Further, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
Further, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
Further, the processor 1201, it is additionally operable to when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
Further, the processor 1201, is additionally operable to the channel quality information being carried on downlink grouped confirmation/non-acknowledgement message and sends to the base station.
Further, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased； Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
Figure 13 is the entity structure schematic diagram of base station embodiment of the present invention, as shown in figure 13, including processor 1301 and memory 1302;Wherein,
Processor 1301, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；Receive the channel quality information for the multiple data stream that the user equipment is sent；
Memory 1302, the channel quality information for storing the multiple data stream.
Further, the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
Further, the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
Further, the processor 1301, specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can be completed by the related hardware of programmed instruction.Foregoing program can be stored in a computer read/write memory medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims (1)

  1. Claims
    1st, a kind of channel quality report method, it is characterised in that including：
    The configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；
    When the transmission state of the downstream data flow sends for multiple data stream, the channel quality information of the multiple data stream is obtained, and the channel quality information is sent to the base station.
    2nd, according to the method described in claim 1, it is characterised in that the configured information includes：The transmission state of training sequence or downstream data flow.
    3rd, method according to claim 1 or 2, it is characterised in that the channel quality information includes：The channel quality parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
    4th, method according to claim 3, it is characterised in that the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    5th, method according to claim 4, it is characterised in that described to send the channel quality information to before the base station when the spatial coherence value is the recommended value of the downstream data flow sending method, in addition to：
    The characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
    6th, the method according to claim any one of 1-5, it is characterised in that described to send the channel quality information to the base station, be specially：
    The channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message to send to the base station.
    7th, method according to claim 6, it is characterized in that, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
    The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, for carrying One in the channel quality parameter of subchannel where stating multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are newly increased in the downlink grouped confirmation/non-acknowledgement message.
    8th, a kind of channel quality report method, it is characterised in that including：
    The configured information for indicating channel characteristics is sent to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；
    Receive the channel quality information for the multiple data stream that the user equipment is sent.
    9th, method according to claim 8, it is characterised in that the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
    10th, method according to claim 9, it is characterised in that the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    11st, the method according to claim any one of 8-10, it is characterised in that the channel quality information that the reception user equipment is sent, be specially：
    Downlink grouped confirmation/non-acknowledgement message that the user equipment is sent is received, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
    12nd, method according to claim 11, it is characterized in that, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
    The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the mass parameter of multiple data stream place subchannel and newly increase newly increased；
    Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
    13rd, a kind of user equipment, it is characterised in that including： Determining module, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；
    Acquisition module, for when the transmission state of the downstream data flow sends for multiple data stream, obtaining the channel quality information of the multiple data stream；
    Sending module, for the channel quality information to be sent to the base station.
    14th, user equipment according to claim 13, it is characterised in that the configured information includes：The transmission state of training sequence or downstream data flow.
    15th, the user equipment according to claim 13 or 14, it is characterised in that the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
    16th, user equipment according to claim 15, it is characterised in that the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    17th, user equipment according to claim 16, it is characterised in that also include：
    Comparison module, for when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
    18th, the user equipment according to claim any one of 13-17, it is characterised in that
    The sending module, sends to the base station specifically for the channel quality information is carried on into downlink grouped confirmation/non-acknowledgement message.
    19th, user equipment according to claim 18, it is characterized in that, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
    The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；
    Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；The channel quality reporting letter Channel cells and the related cells outside member are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
    20th, a kind of base station, it is characterised in that including：
    Information sending module, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；
    Receiving module, the channel quality information for receiving the multiple data stream that the user equipment is sent.
    21st, base station according to claim 20, it is characterised in that the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
    22nd, base station according to claim 21, it is characterised in that the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    23rd, the base station according to claim any one of 20-22, it is characterised in that
    The receiving module, specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
    24th, a kind of channel quality reporting system, it is characterised in that including any described user equipmenies of claim 13-19 and any described base stations of claim 20-23.
    25th, a kind of user equipment, it is characterised in that including：
    Processor, for the configured information for being used to indicate channel characteristics sent according to base station, determines the transmission state of downstream data flow；When the transmission state of the downstream data flow sends for multiple data stream, the channel quality information of the multiple data stream is obtained；The channel quality information is sent to the base station；
    Memory, the channel quality information for storing the multiple data stream.
    26th, user equipment according to claim 25, it is characterised in that the configured information includes：The transmission state of training sequence or downstream data flow.
    27th, the user equipment according to claim 25 or 26, it is characterised in that the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream.
    28th, user equipment according to claim 27, it is characterised in that the spatial coherence value Be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    29th, user equipment according to claim 28, it is characterised in that
    The processor, it is additionally operable to when the spatial coherence value is the recommended value of the downstream data flow sending method, sent by the channel quality information to before the base station, the characteristic value difference of channel correlation matrix or the order of channel matrix of subchannel where the multiple data stream are compared with pre-determined threshold, the recommended value of the downstream data flow sending method is obtained.
    30th, the user equipment according to claim any one of 25-29, it is characterised in that
    The processor, is additionally operable to the channel quality information being carried on downlink grouped confirmation/non-acknowledgement message and sends to the base station.
    31st, user equipment according to claim 30, it is characterized in that, when the mass parameter of subchannel where the channel quality information includes the multiple data stream and the spatial coherence value for representing the spatial coherence between the multiple data stream, the downlink grouped confirmation/non-acknowledgement message includes：
    The related cells for being used to carry the spatial coherence value for being respectively used to carry multiple channel cells of the channel quality parameter of multiple data stream place subchannel and newly increase newly increased；
    Or, it is respectively used to multiple channel cells of the channel quality parameter of subchannel where carrying the multiple data stream and the related cells for carrying the spatial coherence value；One of them in the multiple channel cells is the channel quality reporting cell in the downlink grouped confirmation/non-acknowledgement message, one in the channel quality parameter of subchannel where for carrying the multiple data stream；Channel cells and the related cells outside the channel quality reporting cell are the new reinforcements mouthful in the downlink grouped confirmation/non-acknowledgement message.
    32nd, a kind of base station, it is characterised in that including：
    Processor, for sending the configured information for indicating channel characteristics to user equipment, to cause the user equipment to determine the transmission state of downstream data flow according to the configured information, and when the transmission state of the downstream data flow sends for multiple data stream, obtain the channel quality information of the multiple data stream；Receive the channel quality information for the multiple data stream that the user equipment is sent；
    Memory, the channel quality information for storing the multiple data stream.
    33rd, base station according to claim 32, it is characterised in that the channel quality information includes：The mass parameter of subchannel where the multiple data stream and/or the spatial coherence value for representing the spatial coherence between the multiple data stream. 34th, base station according to claim 33, it is characterised in that the spatial coherence value be the quantized value of the channel relevancy of subchannel where the multiple data stream or be downstream data flow sending method recommended value.
    35th, the base station according to claim any one of 32-34, it is characterised in that
    The processor, specifically for receiving downlink grouped confirmation/non-acknowledgement message that the user equipment is sent, the downlink grouped confirmation/non-acknowledgement message carries the channel quality information.
CN201280002511.6A 2012-12-25 2012-12-25 Channel quality reporting method, device and system Pending CN104041105A (en)

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