CN103891189A

CN103891189A - Method, device and system for acquiring main-secondary stream channel reference offset and secondary stream block length

Info

Publication number: CN103891189A
Application number: CN201280001476.6A
Authority: CN
Inventors: 赵悦莹; 吴慧芳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-09-27
Filing date: 2012-09-27
Publication date: 2014-06-25
Also published as: WO2014047851A1

Abstract

Disclosed are a method, device and MIMO system for acquiring a main-secondary stream channel reference offset and a secondary stream block length, which relate to the field of communications. By setting 0dB to be the largest main-secondary stream channel offset value, and -31 dB--12 dB to be the value range of the smallest main-secondary stream channel offset value, an offset between two neighbouring main-secondary stream channel offset values is able to be smaller than or equal to 1 dB, i.e. the linear value grain of a secondary stream channel offset value is able to be finer, thus the obtained secondary stream block length is more precise. The method employed in the embodiments of the present invention is: the main-secondary stream channel reference offset consists of 30-32 main-secondary stream channel reference offset values and index values corresponding to the main-secondary stream channel offset values one by one, wherein the main-secondary stream channel offset values are in a linear distribution, and the largest main-secondary stream channel offset value is 0 dB, and the value range of the smallest main-secondary stream channel offset value is -31 dB--12 dB.

Description

Method, device and system for acquiring main-secondary stream channel reference offset and secondary stream block length

Major-minor stream channel reference deviation, the acquisition methods of secondary flow block length, equipment and systems technology field

The present invention relates to the communications field, more particularly to a kind of major-minor stream channel reference deviation, the acquisition methods of secondary flow block length, equipment and system.

Background technology

Multiple-input and multiple-output（Multi-Input Mulit-Output, abbreviation MIMO) technology is as one of important technology for improving user's peak rate, applied to Long Term Evolution（Long Term Evolution, abbreviation LTE) technology, UMTS（Universal Mobile Telecommunications System, abbreviation UMTS) etc..

At present, in MIMO technology, major-minor stream channel reference deviation is as shown in table 1：

Table 1

-9 18

-10 17

-1 1 16

-12 15

-13 14

-14 13

-15 12

-16 1 1

-17 10

-18 9

-19 8

-20 7

-21 6

-22 5

-23 4

-24 3

-25 2

ZERO— GRANT 1

INACTIVE 0 is during selecting major-minor stream channel deviation by above-mentioned major-minor stream channel reference deviation and then calculating secondary flow block length, and inventor has found that at least there are the following problems in the prior art：In MIMO technologies, major-minor stream channel deviation is generally less than OdB in the case of double fluid, therefore, in the case of double fluid, when selecting major-minor stream channel deviation by table 1 and then calculating secondary flow block length, the part that major-minor stream deviation is more than OdB in the table 1 will not be typically selected to, and major-minor stream channel deviation is more than the presence of OdB part, the linear value granularity that result in major-minor stream channel deviation is too thick, so that the secondary flow block length calculated is inaccurate, and then influence the performance of mimo system. The content of the invention

Embodiments of the invention provide a kind of major-minor stream channel reference deviation, the acquisition methods of secondary flow block length, equipment and mimo system, by setting OdB to be maximum major-minor stream channel deviation, -31 dB--12 dB are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate.

To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：

First aspect, there is provided the major-minor stream channel reference deviation of one kind, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB- -12 dB.

In the first possible implementation, according in a first aspect, being implemented as：The major-minor stream channel deviation is represented with the mode in dB domains.

In second of possible implementation, with reference to first aspect or the first possible implementation, it is implemented as：The difference of major-minor stream channel deviation described in adjacent two is 0.5dB.

In the third possible implementation, according in a first aspect, being implemented as：The major-minor stream channel deviation is represented with the mode of linear domain.

In the 4th kind of possible implementation, with reference to first aspect or the third possible implementation, it is implemented as：The difference of two adjacent major-minor stream channel deviations is 0.5/16 or 0.5/15.

In the 5th kind of possible implementation, with reference to first aspect or the first possible implementation to the 4th kind of possible implementation, the number of the major-minor stream channel deviation is 31, and the index value also includes the first index value, for indicating specific function.

In the 6th kind of possible implementation, with reference to first aspect or the first possible implementation to the 4th kind of possible implementation, the number of the major-minor stream channel deviation is 30, and the index value also includes the first index value and the second index value, for indicating specific function.

Second aspect includes there is provided a kind of acquisition methods of secondary flow block length, this method：Receive the index value that the network equipment is sent；

Major-minor stream channel deviation corresponding with the index value is obtained according to the index value and the major-minor stream channel reference deviation prestored； Secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

In the first possible implementation, according to second aspect, it is implemented as：The major-minor stream channel deviation is represented with the mode in dB domains.

In second of possible implementation, with reference to second aspect or the first possible implementation, it is implemented as；The difference of major-minor stream channel deviation described in adjacent two is 0.5dB.

In the third possible implementation, according to second aspect, it is implemented as：The major-minor stream channel deviation is represented with the mode of linear domain.

In the 4th kind of possible implementation, with reference to second aspect or the third possible implementation, it is implemented as：The difference of two adjacent major-minor stream channel deviations is 0.5/16 or 0.5/15.

In the 5th kind of possible implementation, with reference to second aspect or the first possible implementation to the 4th kind of possible implementation, this method also includes：The number of the major-minor stream channel deviation is 31, and the index value also includes the first index value, for indicating specific function.

In the 6th kind of possible implementation, with reference to second aspect or the first possible implementation to the 4th kind of possible implementation, this method also includes：The number of the major-minor stream channel deviation is 30, and the index value also includes the first index value and the second index value, for indicating specific function.

The third aspect includes there is provided a kind of acquisition methods of secondary flow block length, this method：Estimate the deviation of major-minor stream；

Index value corresponding with the deviation of the major-minor stream is obtained according to the deviation of the major-minor stream and the major-minor stream channel reference deviation prestored；

Index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12. Fourth aspect includes there is provided a kind of user equipment, the user equipment：Receiving unit, first acquisition unit and second acquisition unit, wherein,

The receiving unit, for receiving the index value of network equipment transmission, and is transferred to the first acquisition unit by the index value of the reception；

The first acquisition unit, for receiving the index value from the receiving unit, and major-minor stream channel deviation corresponding with index value is obtained according to the index value and the major-minor stream channel reference deviation prestored, and the major-minor stream channel deviation of acquisition is transferred to the second acquisition unit；

The second acquisition unit, for receiving the major-minor stream channel deviation from the first acquisition unit, and obtains secondary flow block length according to the major-minor stream channel deviation.

5th aspect is there is provided a kind of user equipment, and the user equipment includes：Memory, receiver and processor, wherein,

The memory, for storing major-minor stream channel reference deviation；

The receiver, for receiving the index value of network equipment transmission, and is transferred to the processor by the index value of the reception；

The processor, for receiving the index value from the receiver, and major-minor stream channel deviation corresponding with the index value is obtained according to the major-minor stream channel reference deviation of the memory storage, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12

6th aspect is there is provided a kind of network equipment, and the network equipment includes：Estimation unit, acquiring unit and transmitting element, wherein,

The estimation unit, the deviation for estimating major-minor stream, and the deviation of the major-minor stream of the estimation is transferred to the acquiring unit；

The acquiring unit, the deviation of the major-minor stream for receiving the estimation from the estimation unit, and the deviation according to the major-minor stream and the major-minor stream channel reference deviation acquisition prestored and institute The corresponding index value of deviation of major-minor stream is stated, and the index value of the acquisition is transferred to the transmitting element；

The transmitting element, for receiving the index value from the acquiring unit, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；

7th aspect is there is provided a kind of network equipment, and the network equipment includes：Processor, receiver and transmitter, wherein,

The memory, for storing major-minor stream channel reference deviation；

The processor, the deviation for estimating major-minor stream, and the corresponding index value of deviation of the major-minor stream according to the major-minor stream channel reference deviation of the memory storage acquisition estimation, and the index value of the acquisition is transferred to the transmitter；The transmitter, for receiving the index value from the receiver, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

Eighth aspect includes there is provided a kind of mimo system, the mimo system：User equipment as described above and the described network equipment.The embodiment of the present invention provides a kind of major-minor stream channel reference deviation, the acquisition methods of secondary flow, equipment and mimo system, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, that is, the linear value granularity of secondary flow channel deviation is caused to become Carefully, so cause obtain secondary flow block length it is more accurate, solve in the prior art, because it is major-minor stream channel deviation linear value coarse size caused by secondary flow block length selection it is inaccurate the problem of.

Brief description of the drawings

The accompanying drawing used required in embodiment or description of the prior art is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of acquisition methods of secondary flow block length provided in an embodiment of the present invention；Fig. 2 is the acquisition methods of another secondary flow block length provided in an embodiment of the present invention；

Fig. 3 is a kind of user equipment provided in an embodiment of the present invention；

Fig. 4 is another user equipment provided in an embodiment of the present invention；Fig. 5 is a kind of network equipment provided in an embodiment of the present invention；Fig. 6 is another network equipment provided in an embodiment of the present invention；

Figure is a kind of mimo system provided in an embodiment of the present invention.

The technical scheme in the embodiment of the present invention is clearly and completely described below in conjunction with the accompanying drawing in the embodiment of the present invention for embodiment, it is clear that described embodiment is only 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.

The embodiment of the present invention is specifically described by taking major-minor stream channel reference deviation in mimo system as an example.

On the one hand, the embodiment of the present invention provides a kind of major-minor stream channel reference deviation, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB (being 1 in linear domain), the span of minimum major-minor stream channel deviation is -3 1 dB- -12 dB.

Further, the number of major-minor stream channel deviation is 31, and index value also includes the first rope Draw value, for indicating specific function.

It is exemplary, major-minor stream channel reference deviation suitable for stream transmission, wherein, the major-minor channel deviation that flows refers to：The difference or secondary flow power and the difference of main flow power of secondary flow signal to noise ratio and main flow signal to noise ratio.

5 bit transfer index values are used due to general in MIMO technology, therefore the quantity of index value at most could be arranged to 32 (2⁵) individual, wherein, when 32 index values are all used to refer to major-minor stream channel deviation, major-minor stream channel deviation could be arranged to 32.Certainly, when index value uses other bit transfers, the number of the number of index value and major-minor stream channel deviation can accordingly change according to actual conditions, be illustrated in following examples with 5 bit transfer index values of use.

Further, index value can also include the first index value, and for indicating specific function, the specific function can be：Instruction user equipment is using single current etc., and accordingly, the number of major-minor stream channel deviation is 31.

Further, when index value can also include being used to indicate the first index value and the second index value of specific function, the specific function can be：Instruction user equipment deactivates MIMO characteristics etc. using single current, physical layer, accordingly, and the number of major-minor stream channel deviation is 30.

Exemplary, the precoding in MIMO technology is indicated（Precoding indocator, abbreviation PCI) selection mode when ensure that stream transmission data, secondary flow signal to noise ratio is less than main flow signal to noise ratio in dB domains（Secondary flow power can also be expressed as less than main flow power）, therefore the major-minor stream channel deviation that the present embodiment is set is respectively less than 0 dB;Learnt according to practical experience, during using stream transmission, secondary flow signal to noise ratio differs not too large with the signal to noise ratio of main flow（Secondary flow difference power can also be expressed as and main flow power difference is not too large）, otherwise user equipment can switch to single-stream transmission data automatically, the difference is usually no more than 12 dB, therefore, it is major-minor stream channel deviation span typically can be-12-0 dB.

Due to needing to leave certain allowance in actual use, so the scope of major-minor stream channel deviation should be more slightly larger than effective range, in order that being distributed in effective range and index value --- corresponding major-minor stream channel deviation increases as far as possible many, so as to ensure that the secondary flow block length of selection is more accurate, the poor maximum of the two neighboring secondary flow channel deviation set in the embodiment of the present invention can be 1 dB, because the number of the major-minor stream channel deviation of the present embodiment setting is up to 32, therefore, minimum major-minor stream channel deviation can be -31 dB. Exemplary, the major-minor stream channel deviation in the major-minor stream channel reference deviation can be represented with the mode in dB domains or linear domain, wherein, the difference for being represented and being represented with the mode of linear domain with the mode in dB domains is：When being represented using the mode in dB domains, although major-minor stream channel deviation is linear distribution in dB domains, but the major-minor stream channel deviation in the corresponding linear domain of index value is exponentially distribution, in such cases, the corresponding major-minor stream channel deviation of index value is not equally distributed, and the number of corresponding major-minor stream channel deviation is more in the smaller Unit Index value of index value；When being represented using the mode of linear domain, it is linear that index value is into corresponding major-minor stream channel deviation, the corresponding major-minor stream channel deviation of index value is to hook distribution in the span of whole index value, so that when selecting block length using the larger corresponding major-minor stream channel deviation of index value, selected block length is more accurate.Major-minor stream channel reference deviation provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB--12 dB are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

The present invention is specifically described with six specific embodiments below, wherein, the major-minor stream channel deviation into embodiment three of embodiment one represents that example IV major-minor stream channel deviation into embodiment six is represented with the mode of linear domain with the mode in dB domains.Embodiment one：

It is the major-minor stream channel reference Deviation Design of one kind provided in an embodiment of the present invention referring to table 2, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 32 linear distributions, major-minor stream channel deviation with dB domain representations, and the difference of two adjacent major-minor stream channel deviations is 0.5dB, maximum major-minor stream channel deviation is 0 dB, and minimum major-minor stream channel deviation is -15.5dB.Wherein 32 major-minor stream channel deviations correspond to an index value respectively.

Because needing to leave certain allowance in actual use, the ratio effective range of the scope selection of the major-minor stream channel deviation of the present embodiment is slightly larger.Table 2 Major-minor stream channel deviation [dB] index value

0 31

-0.5 30

-1 29

-1.5 28

-2 27

-2.5 26

-3 25

-3.5 24

-4 23

-4.5 22

-5 21

-5.5 20

-6 19

-6.5 18

-7 17

-7.5 16

-8 15

-8.5 14

-9 13

-9.5 12

-10 11

-10.5 10

-11 9 -12 7

-12.5 6

-13 5

-13.5 4

-14 3

-14.5 2

-15 1

- 15.5 0 embodiments two：It is another major-minor stream channel reference Deviation Design provided in an embodiment of the present invention referring to table 3, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 31 linear distributions, major-minor stream channel deviation with dB domain representations, and the difference of two adjacent major-minor stream channel deviations is 0.5dB, maximum major-minor stream channel deviation is 0 dB, and minimum major-minor stream channel deviation is -15dB.Because needing to leave certain allowance in actual use, the ratio effective range of the scope selection of the major-minor stream channel deviation of the present embodiment is slightly larger.

In addition, comprising 32 index values in the major-minor stream channel reference Deviation Design, wherein 31 index values respectively with 31 major-minor stream channel deviations --- it is corresponding, for indicating corresponding major-minor to flow channel deviation, a remaining index value（First index value）For indicating specific function, the first index value can be used in any character or string representation, the present embodiment with " reserve " expression.In order that this 31 major-minor stream channel deviation linear distributions in dB, can be expressed as first index value by index value 0 or index value 31.Major-minor stream channel deviation [dB] index value of table 3

0 31 - z\ -

lZZ80/ZlOZN3/X3d IS8^o/ OZ OAV -12.5 6

-13 5

-13.5 4

-14 3

-14.5 2

The embodiments three of -15 1 reserve 0：

It is another major-minor stream channel reference Deviation Design provided in an embodiment of the present invention referring to table 4, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 30 linear distributions, major-minor stream channel deviation with dB domain representations, and the difference of two adjacent major-minor stream channel deviations is 0.5dB, maximum major-minor stream channel deviation is 0 dB, and minimum major-minor stream channel deviation is -14.5dB.Because needing to leave certain allowance in actual use, the ratio effective range of the scope selection of the major-minor stream channel deviation of the present embodiment is slightly larger.

In addition, comprising 32 index values in the major-minor stream channel reference Deviation Design, wherein 30 index values respectively with 30 major-minor stream channel deviations --- it is corresponding, for indicating corresponding major-minor to flow channel deviation, remaining two index values（First index value and the second index value）For indicating specific function, the first index value and the second index value can be used in any character or string representation, the present embodiment with the first index value of " reservel " expression, and the second index value is represented with " reserve2 ".In order that this 30 major-minor stream channel deviation linear distributions in dB domains, can be expressed as the first index value and the second index value by index value 0 and index value 1 or index value 30 and index value 31.

Table 4 - π -

lZZ80/ZlOZN3/X3d IS8^o/ OZ OAV -12.5 6

-13 5

-13.5 4

-14 3

The example IVs of 11 reserve2 of -14.5 2 reserve 0：It is the major-minor stream channel reference Deviation Design of one kind provided in an embodiment of the present invention referring to table 5, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 32 linear distributions, major-minor stream channel deviation with linear domain representation, it is preferred that, major-minor stream channel deviation can be represented in the form of x/16, for example, referring to table 5, major-minor stream channel deviation can be 8/16,5.5/16,5/16 etc., and the difference of two adjacent major-minor stream channel deviations is 0.5/16, maximum major-minor stream channel deviation is 16/16, and minimum major-minor stream channel deviation is 0.5/16.Wherein, 32 major-minor stream channel deviations correspond to an index value respectively.

The major-minor stream channel deviation index value of table 5

16/16 31

15.5/16 30

15/16 29

14.5/16 28

14/16 27

13.5/16 26

13/16 25 - ΐ -

61ZZ80/Z10ZN3/X3d IS8^o/ OZ OAV

Embodiment five：It is another major-minor stream channel reference Deviation Design provided in an embodiment of the present invention referring to table 6, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 31 linear distributions, major-minor stream channel deviation with linear domain representation, it is preferred that, major-minor stream channel deviation can be represented in the form of x/16, for example, referring to table 6, major-minor stream channel deviation can be 8/16,5.5/16,5/16 etc., the difference of two adjacent major-minor stream channel deviations is 0.5/16, maximum major-minor stream channel deviation is 16/16, and minimum major-minor stream channel deviation is 1/16 (- 12dB in correspondence dB domains).

In addition, comprising 32 index values in the major-minor stream channel reference Deviation Design, wherein 31 index values respectively with 31 major-minor stream channel deviations --- it is corresponding, for indicating corresponding major-minor to flow channel deviation, a remaining index value（First index value）For indicating specific function, the first index value can be used in any character or string representation, the present embodiment with " reserve " expression.In order that this 31 major-minor stream channel deviation linear distributions in linear domain, can be expressed as first index value by index value 0 or index value 31.Table 6

1 1.5/16 22

1 1/16 21

10.5/16 20

10/16 19

9.5/16 18

9/16 17

8.5/16 16

8/16 15

7.5/16 14

7/16 13

6.5/16 12

6/16 1 1

5.5/16 10

5/16 9

4.5/16 8

4/16 7

3.5/16 6

3/16 5

2.5/16 4

2/16 3

1.5/16 2

The embodiments six of 1/16 1 reserve 0: It is another major-minor stream channel reference Deviation Design provided in an embodiment of the present invention referring to table 7, the major-minor stream channel reference Deviation Design is represented in a tabular form, naturally it is also possible to represented otherwise.

In the major-minor stream channel reference Deviation Design comprising 30 linear distributions, major-minor stream channel deviation with linear domain representation, it is preferred that, major-minor stream channel deviation can be represented in the form of x/15, for example, referring to table 5, major-minor stream channel deviation can be 8/15,5.5/15,5/15 etc., the difference of two adjacent major-minor stream channel deviations is 0.5/15, maximum major-minor stream channel deviation is 15/15 (0 dB of correspondence), and minimum major-minor stream channel deviation is 0.5/15 (- 15dB in correspondence dB domains).In addition, comprising 32 index values in the major-minor stream channel reference Deviation Design, wherein 30 index values respectively with 30 major-minor stream channel deviations --- it is corresponding, for indicating corresponding major-minor to flow channel deviation, remaining two index values（First index value and the second index value）For indicating specific function, the first index value and the second index value can be used in any character or string representation, the present embodiment with the first index value of " reservel " expression, and the second index value is represented with " reserve2 ".In order that this 30 major-minor stream channel deviation linear distributions in linear domain, can be expressed as the first index value and the second index value by index value 0 and index value 1 or index value 30 and index value 31.

Table

10.5/15 22

10/15 21

9.5/15 20

9/15 19

8.5/15 18

8/15 17

7.5/15 16

7/15 15

6.5/15 14

6/15 13

5.5/15 12

5/15 1 1

4.5/15 10

4/15 9

3.5/15 8

3/15 7

2.5/15 6

2/15 5

1.5/15 4

1/15 3

0.5/15 2

reserve 1 1

reserve2 0

It will be readily appreciated by those skilled in the art that above-described embodiment one to embodiment six is the exemplary explanation carried out to the present invention, in fact, in dB domains, may be selected in 0.375-1 dB Any one value be used as it is two neighboring it is major-minor stream channel deviation difference, for example, 0.4 dB, 0.6 dB, 0.8 dB etc., and the two neighboring major-minor stream channel deviation selected in the range of 0.375-1 dB is poor smaller, the linear value granularity of major-minor stream channel deviation is smaller, and then the secondary flow block length obtained is more accurate；In linear domain, any one value in 0.025-0.035 may be selected as the difference of two neighboring major-minor stream channel deviation.On the one hand, the embodiments of the invention provide a kind of acquisition methods of secondary flow block length, referring to Fig. 1, including：

101 :Receive the index value that the network equipment is sent；

Exemplary, information user's equipment that the network equipment is sent can also receive following information from the network equipment to be included：The mapping relations of power bias, the code channel number of block length and default gain factor and block length.

102:Major-minor stream channel deviation corresponding with the index value is obtained according to the index value and the major-minor stream channel reference deviation prestored,

Exemplary, due to using 5 bit transfer index values in MIMO technology, therefore the quantity of index value at most could be arranged to 32 (2⁵) individual, wherein, when 32 index values are all used to refer to major-minor stream channel deviation, major-minor stream channel deviation could be arranged to 32.Certainly, when index value uses other bit transfers, the number of the number of index value and major-minor stream channel deviation can accordingly change according to actual conditions, be illustrated in following examples with 5 bit transfer index values of use.

Exemplary, the external components precoding in MIMO technologies is indicated（Precoding indocator, abbreviation PCI) selection mode when ensure that stream transmission data, it is auxiliary in dB domains Flow signal to noise ratio and be less than main flow signal to noise ratio（Secondary flow power can also be expressed as less than main flow power）, therefore the major-minor stream channel deviation that the present embodiment is set is respectively less than 0 dB;Learnt according to practical experience, during using stream transmission, secondary flow signal to noise ratio differs not too large with the signal to noise ratio of main flow（Secondary flow difference power can also be expressed as and main flow power difference is not too large）, otherwise user equipment can switch to single-stream transmission data automatically, the difference is usually no more than 12 dB, therefore, it is major-minor stream channel deviation span typically can be-12-0 dB.

Due to needing to leave certain allowance in actual use, so the scope of major-minor stream channel deviation should be more slightly larger than effective range, in order that being distributed in effective range and index value --- corresponding major-minor stream channel deviation increases as far as possible many, so as to ensure that the secondary flow block length of selection is more accurate, the poor maximum of the two neighboring secondary flow channel deviation set in the embodiment of the present invention can be 1 dB, because the number of the major-minor stream channel deviation of the present embodiment setting is up to 32, therefore, minimum major-minor stream channel deviation can be -31 dB.Exemplary, can be by the difference control of two neighboring major-minor stream channel deviation between 0.375-1 dB after the scope of major-minor stream channel deviation is determined using the above method.In practical application, in dB domains, any one value in 0.375-1 dB may be selected as the difference of two neighboring major-minor stream channel deviation, for example, 0.4 dB, 0.6 dB, 0.8 dB etc., in linear domain, any one value in 0.025-0.035 may be selected as the difference of two neighboring major-minor stream channel deviation, referring to table 2- tables 7, the difference of two adjacent major-minor stream channel deviations is respectively 0.5dB, 0.5 dB, 0.5dB, 0.5/16,0.5/16,0.5/15.

And the two neighboring major-minor stream channel deviation selected in the range of 0.375-1 dB is poor smaller, the number for the secondary flow channel deviation being distributed in the corresponding linear domain of Unit Index value is more, when differences of the selection 0.375dB as two neighboring major-minor stream channel deviation, the linear value granularity of major-minor stream channel deviation is minimum, and then the secondary flow block length obtained is most accurate.

Exemplary, the major-minor stream channel deviation in the major-minor stream channel reference deviation can be represented with the mode in dB domains or linear domain, wherein, the difference for being represented and being represented with the mode of linear domain with the mode in dB domains is：When being represented using the mode in dB domains, although major-minor stream channel deviation is linear distribution in dB domains, but the major-minor stream channel deviation in the corresponding linear domain of index value is exponentially distribution, in such cases, the corresponding major-minor stream channel deviation of index value is not equally distributed, and the number of corresponding major-minor stream channel deviation is more in the smaller Unit Index value of index value；When being represented using the mode of linear domain, it is linear that index value is into corresponding major-minor stream channel deviation, and the corresponding major-minor stream channel deviation of index value is in whole index value It is to hook distribution in span so that when selecting block length using the larger corresponding major-minor stream channel deviation of index value, selected block length is more accurate.

103 :Secondary flow block length is obtained according to the major-minor stream channel deviation；

Exemplary, it can be included according to the process that the major-minor stream channel deviation obtains secondary flow block length：The major-minor stream channel deviation is multiplied with the power bias of main flow, the power bias of the corresponding secondary flow of main flow is obtained；According to the power bias of the secondary flow and the code channel number of main flow block length, the gain factor of the secondary flow is obtained；According to the mapping relations of the gain factor of the secondary flow and default gain factor and block length, the block length of secondary flow is obtained.The acquisition methods of secondary flow block length provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, the dB of -31 dB-- 12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

On the one hand, the embodiment of the present invention provides a kind of acquisition methods of secondary flow block length, referring to Fig. 2, including：

201 :Estimate the deviation of major-minor stream；

202:Index value corresponding with the deviation of the major-minor stream is obtained according to the deviation of the major-minor stream and the major-minor stream channel reference deviation prestored；

203 :Index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation, wherein, the major-minor stream channel reference deviation is constituted by 30-32 major-minor stream channel deviations and with the major-minor stream one-to-one index value of channel deviation

Wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

The acquisition methods of secondary flow block length provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, the dB of -31 dB-- 12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the secondary flow block caused by the linear value coarse size of major-minor stream channel deviation The problem of length selection is inaccurate.

On the one hand, the embodiment of the present invention provides a kind of user equipment 30, referring to Fig. 3, including：Receiving unit 301, first acquisition unit 302 and second acquisition unit 303, wherein,

Receiving unit 301, for receiving the index value of network equipment transmission, and is transferred to first acquisition unit 302 by the index value of the reception;

Exemplary, information user's equipment that the network equipment is sent can also receive following information from the network equipment to be included：The mapping relations of the power bias of main flow, the code channel number of main flow block length and default gain factor and block length.

First acquisition unit 302, for receiving the index value from receiving unit 301, and major-minor stream channel deviation corresponding with index value is obtained according to the index value and the major-minor stream channel reference deviation prestored, and the major-minor stream channel deviation of acquisition is transferred to second acquisition unit 303;

Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12;

Exemplary, the precoding in MIMO technologies is indicated（Precoding indocator, abbreviation PCI) selection mode when ensure that stream transmission data, secondary flow signal to noise ratio is less than main flow signal to noise ratio in dB domains（Secondary flow power can also be expressed as less than main flow power）, therefore the present embodiment sets The major-minor stream channel deviation put is respectively less than 0 dB;Learnt according to practical experience, during using stream transmission, secondary flow signal to noise ratio differs not too large with the signal to noise ratio of main flow（Secondary flow difference power can also be expressed as and main flow power difference is not too large）, otherwise user equipment can switch to single-stream transmission data automatically, the difference is usually no more than 12 dB, therefore, it is major-minor stream channel deviation span typically can be-12-0 dB.

Due to needing to leave certain allowance in actual use, so the scope of major-minor stream channel deviation should be more slightly larger than effective range, in order that being distributed in effective range and index value --- corresponding major-minor stream channel deviation increases as far as possible many, so as to ensure that the secondary flow block length of selection is more accurate, the poor maximum of the two neighboring secondary flow channel deviation set in the embodiment of the present invention can be 1 dB, because the number of the major-minor stream channel deviation of the present embodiment setting is up to 32, therefore, minimum major-minor stream channel deviation can be -31 dB.

Exemplary, can be by the difference control of two neighboring major-minor stream channel deviation between 0.375-1 dB after the scope of major-minor stream channel deviation is determined using the above method.In practical application, in dB domains, any one value in 0.375-1 dB may be selected as the difference of two neighboring major-minor stream channel deviation, for example, 0.4 dB, 0.6 dB, 0.8 dB etc., in linear domain, any one value in 0.025-0.035 may be selected as the difference of two neighboring major-minor stream channel deviation, referring to table 2- tables 7, the difference of two adjacent major-minor stream channel deviations is respectively 0.5dB, 0.5 dB, 0.5dB, 0.5/16,0.5/16,0.5/15.

Exemplary, the major-minor stream channel deviation in the major-minor stream channel reference deviation can be represented with the mode in dB domains or linear domain, wherein, the difference for being represented and being represented with the mode of linear domain with the mode in dB domains is：When being represented using the mode in dB domains, although major-minor stream channel deviation is linear distribution in dB domains, but the major-minor stream channel deviation in the corresponding linear domain of index value is exponentially distribution, in such cases, the corresponding major-minor stream channel deviation of index value is not equally distributed, and the number of corresponding major-minor stream channel deviation is more in the smaller Unit Index value of index value；When being represented using the mode of linear domain, it is linear that index value is into corresponding major-minor stream channel deviation, the corresponding major-minor stream channel deviation of index value is to hook distribution in the span of whole index value so that when the larger corresponding major-minor stream channel of index value of use When deviation selects block length, selected block length is more accurate.

Second acquisition unit 303, for receiving the major-minor stream channel deviation from first acquisition unit 302, and obtains secondary flow block length according to the major-minor stream channel deviation.

Exemplary, it can be included according to the process that the major-minor stream channel deviation obtains secondary flow block length：The major-minor stream channel deviation is multiplied with the power bias of main flow, the power bias of the corresponding secondary flow of main flow is obtained；According to the power bias of the secondary flow and the code channel number of main flow block length, the gain factor of the secondary flow is obtained；According to the gain factor of the secondary flow and default gain factor and block length mapping relations, the block length of secondary flow is obtained.

Optionally, the user equipment 30 can also include memory cell, for storing major-minor stream channel reference deviation.User equipment provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

On the one hand, the embodiment of the present invention provides another user equipment 30, referring to Fig. 4, including memory 401, receiver 402, processor 403, wherein,

Memory 401, for storing major-minor stream channel reference deviation, wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is the dB of -31 dB-- 12;Exemplary, at present, 5 bit transfer index values are used in MIMO technology, therefore the quantity of index value at most could be arranged to 32 (2⁵) individual, wherein, when 32 index values are all used to refer to major-minor stream channel deviation, major-minor stream channel deviation could be arranged to 32.Certainly, when index value uses other bit transfers, the number of the number of index value and major-minor stream channel deviation can accordingly change according to actual conditions, be illustrated in following examples with 5 bit transfer index values of use.

Further, index value can also include the first index value, and for indicating specific function, the specific function can be：Instruction user equipment is using single current etc., and accordingly, the number of major-minor stream channel deviation is 31. Further, when index value can also include being used to indicate the first index value and the second index value of specific function, the specific function can be：Instruction user equipment deactivates MIMO characteristics etc. using single current, physical layer, accordingly, and the number of major-minor stream channel deviation is 30.

Exemplary, the precoding in MIMO technologies is indicated（Precoding indocator, abbreviation PCI) selection mode when ensure that stream transmission data, secondary flow signal to noise ratio is less than main flow signal to noise ratio in dB domains（Secondary flow power can also be expressed as less than main flow power）, therefore the major-minor stream channel deviation that the present embodiment is set is respectively less than 0 dB;Learnt according to practical experience, during using stream transmission, secondary flow signal to noise ratio differs not too large with the signal to noise ratio of main flow（Secondary flow difference power can also be expressed as and main flow power difference is not too large）, otherwise user equipment can switch to single-stream transmission data automatically, the difference is usually no more than 12 dB, therefore, it is major-minor stream channel deviation span typically can be-12-0 dB.

Exemplary, major-minor stream channel deviation in the major-minor stream channel reference deviation can be represented with the mode in dB domains or linear domain, wherein, represented with the mode in dB domains and with the mode of linear domain The difference of expression is：When being represented using the mode in dB domains, although major-minor stream channel deviation is linear distribution in dB domains, but the major-minor stream channel deviation in the corresponding linear domain of index value is exponentially distribution, in such cases, the corresponding major-minor stream channel deviation of index value is not equally distributed, and the number of corresponding major-minor stream channel deviation is more in the smaller Unit Index value of index value；When being represented using the mode of linear domain, it is linear that index value is into corresponding major-minor stream channel deviation, the corresponding major-minor stream channel deviation of index value is to hook distribution in the span of whole index value, so that when selecting block length using the larger corresponding major-minor stream channel deviation of index value, selected block length is more accurate.

Receiver 402, for receiving the index value of network equipment transmission, and is transferred to processor 403 by the index value of the reception;

Exemplary, information user's equipment that the network equipment is sent can also receive following information from the network equipment：The mapping relations of the power bias of main flow, the code channel number of main flow block length and default gain factor and block length.

Processor 403, for receiving the index value from receiver 402, and the major-minor stream channel reference deviation stored according to memory 401 obtains major-minor stream channel deviation corresponding with index value, and secondary flow block length is obtained according to the major-minor stream channel deviation.

Exemplary, it can be included according to the process that the major-minor stream channel deviation obtains secondary flow block length：The major-minor stream channel deviation is multiplied with the power bias of main flow, the power bias of the corresponding secondary flow of main flow is obtained；According to the power bias of the secondary flow and the code channel number of main flow block length, the gain factor of the secondary flow is obtained；According to the gain factor of the secondary flow and default gain factor and block length mapping relations, the block length of secondary flow is obtained.User equipment provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

On the one hand, the embodiment of the present invention provides a kind of network equipment 50, referring to Fig. 5, including：Estimation unit 501, acquiring unit 502 and transmitting element 503, wherein,

Estimation unit 501, the deviation for estimating major-minor stream, and the deviation of the major-minor stream of the estimation is transferred to acquiring unit 502; Acquiring unit 502, for receiving the index value from estimation unit 501, and deviation according to the major-minor stream and the major-minor stream channel reference deviation that prestores obtain index value corresponding with the deviation of the major-minor stream, and the index value of the acquisition is transferred to transmitting element 503;

Transmitting element 503, for receiving the index value from acquiring unit 502, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation, wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

Optionally, the network equipment 50 can also include memory cell, for storing major-minor stream channel reference deviation.

The network equipment provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

On the one hand, the embodiment of the present invention provides another network equipment 50, referring to Fig. 6, including：Processor 601, receiver 602 and transmitter 603, wherein,

Memory 601, for storing major-minor stream channel reference deviation；

Processor 602, the deviation for estimating major-minor stream, and the major-minor stream channel reference deviation stored according to memory 601 obtain the corresponding index value of deviation of the major-minor stream of the estimation, and the index value of the acquisition is transferred into transmitter 603;

Transmitter 603, for receiving the index value from receiver 602, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, major-minor linear point of the channel deviation of stream Cloth, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.The network equipment provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, solve in the prior art, the problem of the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation.

On the one hand, the embodiment of the present invention provides a kind of mimo system, referring to Fig. 7, including：The network equipment 50 described in user equipment 30 and any of the above-described embodiment described in any of the above-described embodiment.

Mimo system provided in an embodiment of the present invention, by setting OdB to be maximum major-minor stream channel deviation, -31 dB of dB - -12 are the span of minimum major-minor stream channel deviation, so that the difference of two adjacent major-minor stream channel deviations is less than or equal to 1 dB, i.e. so that the linear value granularity of secondary flow channel deviation attenuates, and then make it that the secondary flow block length obtained is more accurate, improve the performance of MIMO systems, solve in the prior art, the selection of secondary flow block length is inaccurate caused by the linear value coarse size of major-minor stream channel deviation, the problem of mimo system poor performance.One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in a computer read/write memory medium, and the program upon execution, performs the step of including above 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.

It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

Claims

1st, a kind of major-minor stream channel reference deviation, it is characterized in that, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

2nd, major-minor stream channel reference deviation according to claim 1, it is characterised in that the major-minor stream channel deviation is represented with the mode in dB domains.

3rd, major-minor stream channel reference deviation according to claim 1 or 2, it is characterised in that the difference of the major-minor stream channel deviation described in adjacent two is 0.5 dB.

4th, major-minor stream channel reference deviation according to claim 1, it is characterised in that the major-minor stream channel deviation is represented with the mode of linear domain.

5th, the major-minor stream channel reference deviation according to claim 1 or 4, it is characterised in that the difference of two adjacent major-minor stream channel deviations is 0.5/16 or 0.5/15.

6th, the major-minor stream channel reference deviation according to claim any one of 1-5, it is characterised in that the number of the major-minor stream channel deviation is 31, and the index value also includes the first index value, for indicating specific function.

7th, the major-minor stream channel reference deviation according to claim any one of 1-5, it is characterised in that the number of the major-minor stream channel deviation is 30, and the index value also includes the first index value and the second index value, for indicating specific function.

8th, a kind of acquisition methods of secondary flow block length, it is characterised in that including：

Receive the index value that the network equipment is sent；

Major-minor stream channel deviation corresponding with the index value is obtained according to the index value and the major-minor stream channel reference deviation prestored；

Secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

9th, the acquisition methods of secondary flow block length according to claim 8, it is characterised in that the major-minor stream channel deviation is represented with the mode in dB domains.

10th, the acquisition methods of secondary flow block length according to claim 8 or claim 9, it is characterised in that The difference of major-minor stream channel deviation described in adjacent two is 0.5 dB.

11, the acquisition methods of secondary flow block length according to claim 8, it is characterised in that the major-minor stream channel deviation is represented with the mode of linear domain.

12nd, the acquisition methods of the secondary flow block length according to claim 8 or 11, it is characterised in that the difference of two adjacent major-minor stream channel deviations is 0.5/ 16.

13rd, the acquisition methods of the secondary flow block length according to any one of claim 8- 12, it is characterised in that the number of the major-minor stream channel deviation is 31, and the index value also includes the first index value, for indicating specific function.

14th, the acquisition methods of the secondary flow block length according to any one of claim 8- 12, it is characterized in that, the number of the major-minor stream channel deviation is 30, and the index value also includes the first index value and the second index value, for indicating specific function.

15th, a kind of acquisition methods of secondary flow block length, it is characterised in that including：

Estimate the deviation of major-minor stream；

Index value corresponding with the deviation of the major-minor stream is obtained according to the deviation of the major-minor stream and the major-minor stream channel reference deviation prestored；

Index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

16th, a kind of user equipment, it is characterised in that including：Receiving unit, first acquisition unit and second acquisition unit, wherein,

The receiving unit, for receiving the index value of network equipment transmission, and is transferred to the first acquisition unit by the index value of the reception；

The first acquisition unit, for receiving the index value from the receiving unit, and major-minor stream channel deviation corresponding with index value is obtained according to the index value and the major-minor stream channel reference deviation prestored, and the major-minor stream channel deviation of acquisition is transferred to the second acquisition unit；

The second acquisition unit, for receiving the major-minor stream channel deviation from the first acquisition unit, and obtains secondary flow block length according to the major-minor stream channel deviation； Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

17th, a kind of user equipment, it is characterised in that including：Memory, receiver and processor, wherein,

The memory, for storing major-minor stream channel reference deviation；

The receiver, for receiving the index value of network equipment transmission, and is transferred to the processor by the index value of the reception；

The processor, for receiving the index value from the receiver, and major-minor stream channel deviation corresponding with the index value is obtained according to the major-minor stream channel reference deviation of the memory storage, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

18th, a kind of network equipment, it is characterised in that including：Estimation unit, acquiring unit and transmitting element, wherein,

The estimation unit, the deviation for estimating major-minor stream, and the deviation of the major-minor stream of the estimation is transferred to the acquiring unit；

The acquiring unit, for the deviation for the major-minor stream that the estimation is received from the estimation unit, and deviation according to the major-minor stream and the major-minor stream channel reference deviation that prestores obtain index value corresponding with the deviation of the major-minor stream, and the index value of the acquisition is transferred to the transmitting element；

The transmitting element, for receiving the index value from the acquiring unit, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；

Wherein, by 30-32 major-minor stream channel deviations and with the major-minor stream, channel deviation --- corresponding index value is constituted the major-minor stream channel reference deviation, wherein, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12. 19th, a kind of network equipment, it is characterised in that including：Processor, receiver and transmitter, wherein,

The memory, for storing major-minor stream channel reference deviation；

The processor, the deviation for estimating major-minor stream, and the corresponding index value of deviation of the major-minor stream according to the major-minor stream channel reference deviation of the memory storage acquisition estimation, and the index value of the acquisition is transferred to the transmitter；

The transmitter, for receiving the index value from the receiver, and the index value is sent to user equipment, to cause the user equipment to obtain major-minor stream channel deviation corresponding with the index value according to the index value and the major-minor stream channel reference deviation prestored, and secondary flow block length is obtained according to the major-minor stream channel deviation；Wherein, by 30-32 major-minor stream channel deviations and with major-minor stream, channel deviation --- corresponding index value is constituted major-minor stream channel reference deviation, the major-minor stream linear distribution of channel deviation, and maximum major-minor stream channel deviation is OdB, the span of minimum major-minor stream channel deviation is -31 dB of dB--12.

20th, a kind of mimo system, it is characterised in that including：User equipment as described in claim 16 or 17 and the network equipment as described in claim 18 or 19.