WO2014047851A1

WO2014047851A1 - Method, device and system for acquiring main-secondary stream channel reference offset and secondary stream block length

Info

Publication number: WO2014047851A1
Application number: PCT/CN2012/082219
Authority: WO
Inventors: 赵悦莹; 吴慧芳
Original assignee: 华为技术有限公司
Priority date: 2012-09-27
Filing date: 2012-09-27
Publication date: 2014-04-03
Also published as: CN103891189A

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 0 dB 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

Main auxiliary stream channel reference deviation, auxiliary stream block length acquisition method, device and system

The present invention relates to the field of communications, and in particular, to a primary and secondary stream channel reference deviation, a method for acquiring a secondary stream block length, a device, and a system.

Background technique

Multi-Input Mulit-Output (MIMO) technology has become one of the important technologies to improve the peak rate of users. It is applied to Long Term Evolution (LTE) technology and Universal Mobile Telecommunications (Universal Mobile Telecommunications). System, referred to as UMTS).

Currently, in MIMO technology, the primary and secondary stream channel reference deviations are 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 In the process of selecting the primary and secondary stream channel offset values and calculating the auxiliary stream block length by using the above-mentioned primary and secondary stream channel reference offsets, the inventors found that at least the following problems exist in the prior art: In the MIMO technology, the dual-stream case is the primary and secondary The value of the stream channel offset is generally less than OdB. Therefore, in the case of dual stream, when the main and auxiliary stream channel offset values are selected in Table 1 to calculate the auxiliary stream block length, the part of the main and auxiliary stream offset values greater than OdB in Table 1 is generally not The presence of the portion of the primary and secondary stream channel offset values greater than OdB results in a coarser granularity of the linear value of the primary and secondary stream channel offset values, which makes the calculated auxiliary stream block length inaccurate, thereby affecting the performance of the MIMO system. Summary of the invention

Embodiments of the present invention provide a primary and secondary stream channel reference deviation, a method for acquiring a secondary stream block length, a device, and a MIMO system, by setting a channel offset value of the primary and secondary stream with the largest OdB, -31 dB--12 dB is the minimum The range of the deviation value of the main auxiliary stream channel is such that the difference between the deviation values of the adjacent two main auxiliary stream channels is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is refined, and the obtained The auxiliary stream block length is more precise.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, a primary and secondary stream channel reference offset is provided, where the primary and secondary stream channel reference offsets are offset values of 30-32 primary and secondary stream channels and an index value corresponding to the primary and secondary stream channel offset values. The composition, wherein the main auxiliary stream channel deviation value is linearly distributed, and the maximum main auxiliary stream channel deviation value is OdB, and the minimum main auxiliary stream channel deviation value ranges from -31 dB to -12 dB.

In a first possible implementation manner, according to the first aspect, the specific implementation is as follows: the primary and secondary stream channel offset values are represented by a dB domain.

In a second possible implementation manner, in combination with the first aspect or the first possible implementation manner, the implementation is as follows: The difference between the two adjacent primary and secondary stream channel offset values is 0.5 dB.

In a third possible implementation, according to the first aspect, the specific implementation is as follows: The primary and secondary stream channel offset values are represented by a linear domain.

In a fourth possible implementation manner, in combination with the first aspect or the third possible implementation manner, the specific implementation is as follows: the difference between the adjacent two primary and secondary auxiliary channel channel offset values is 0.5/16 or 0.5/15. .

In a fifth possible implementation, in combination with the first aspect or the first possible implementation manner to the fourth possible implementation manner, the number of the primary and secondary stream channel offset values is 31, and the index value is It also includes a first index value that indicates a special function.

In a sixth possible implementation, in combination with the first aspect or the first possible implementation manner to the fourth possible implementation manner, the number of the primary and secondary stream channel offset values is 30, and the index value is Also included are a first index value and a second index value for indicating a special function.

The second aspect provides a method for acquiring a secondary stream block length, where the method includes: receiving an index value sent by a network device;

Obtaining a primary and secondary stream channel offset value corresponding to the index value according to the index value and a pre-stored primary and secondary stream channel reference offset; Obtaining a secondary stream block length according to the primary and secondary stream channel offset values;

The primary and secondary stream channel reference offsets are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are The linear distribution, and the maximum primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB.

In a first possible implementation, according to the second aspect, the specific implementation is as follows: the primary and secondary stream channel offset values are represented by a dB domain.

In a second possible implementation manner, in combination with the second aspect or the first possible implementation manner, the difference between the two adjacent primary and secondary stream channel offset values is 0.5 dB.

In a third possible implementation, according to the second aspect, the specific implementation is as follows: The primary and secondary stream channel offset values are represented by a linear domain.

In a fourth possible implementation manner, in combination with the second aspect or the third possible implementation manner, the specific implementation is as follows: the difference between the adjacent two primary and secondary auxiliary channel channel offset values is 0.5/16 or 0.5/15. .

In a fifth possible implementation, in combination with the second aspect or the first possible implementation manner to the fourth possible implementation manner, the method further includes: the number of the primary and secondary stream channel offset values is 31 The index value further includes a first index value for indicating a special function.

In a sixth possible implementation, in combination with the second aspect or the first possible implementation manner to the fourth possible implementation manner, the method further includes: the number of the primary and secondary stream channel offset values is 30 The index value further includes a first index value and a second index value for indicating a special function.

In a third aspect, a method for acquiring a secondary stream length is provided, the method comprising: estimating a deviation value of a primary auxiliary stream;

Obtaining an index value corresponding to the deviation value of the primary and secondary streams according to the deviation value of the primary and secondary streams and the pre-stored primary and secondary stream channel reference deviations;

Sending an index value to the user equipment, so that the user equipment acquires a primary and secondary stream channel offset value corresponding to the index value according to the index value and the pre-stored primary and secondary stream channel reference offset, and according to the primary and secondary stream channel The deviation value obtains the length of the auxiliary stream block;

The primary and secondary stream channel reference offsets are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are The linear distribution, and the maximum primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB. A fourth aspect provides a user equipment, where the user equipment includes: a receiving unit, a first acquiring unit, and a second acquiring unit, where

The receiving unit is configured to receive an index value sent by the network device, and transmit the received index value to the first acquiring unit;

The first acquiring unit is configured to receive the index value from the receiving unit, and obtain a primary and secondary stream channel offset value corresponding to the index value according to the index value and the pre-stored primary and secondary stream channel reference deviation, and Obtaining the obtained primary and secondary stream channel offset values to the second acquiring unit;

The second acquiring unit is configured to receive the primary and secondary stream channel offset values from the first acquiring unit, and obtain an auxiliary stream block length according to the primary and secondary stream channel offset values.

A fifth aspect provides a user equipment, where the user equipment includes: a memory, a receiver, and a processor, where

The memory is configured to store a primary and secondary stream channel reference offset;

The receiver is configured to receive an index value sent by the network device, and transmit the received index value to the processor;

The processor, configured to receive the index value from the receiver, and obtain a primary and secondary stream channel offset value corresponding to the index value according to the primary and secondary stream channel reference offsets stored in the memory, and according to the The primary and secondary stream channel offset values obtain the auxiliary stream block length;

The primary and secondary stream channel reference deviations are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are linearly distributed, and the largest The primary and secondary stream channel offset values are OdB, and the smallest primary and secondary stream channel offset values range from -31 dB to - 12 dB.

According to a sixth aspect, a network device is provided, where the network device includes: an estimating unit, an obtaining unit, and a sending unit, where

The estimating unit is configured to estimate a deviation value of the primary auxiliary stream, and transmit the estimated deviation value of the primary auxiliary stream to the acquiring unit;

The acquiring unit is configured to receive, by the estimating unit, the estimated deviation value of the primary and secondary auxiliary streams, and obtain, according to the deviation value of the primary and secondary auxiliary flows and the pre-stored primary and secondary stream channel reference deviations, Determining an index value corresponding to the deviation value of the primary and secondary streams, and transmitting the acquired index value to the sending unit;

The sending unit is configured to receive the index value from the acquiring unit, and send the index value to a user equipment, so that the user equipment obtains according to the index value and a pre-stored primary and secondary stream channel reference offset. a primary and secondary stream channel offset value corresponding to the index value, and acquiring an auxiliary stream block length according to the primary and secondary stream channel offset values;

According to a seventh aspect, a network device is provided, where the network device includes: a processor, a receiver, and a transmitter, where

The processor is configured to estimate a deviation value of the primary and secondary streams, and obtain an index value corresponding to the estimated deviation value of the primary and secondary streams according to the primary and secondary stream channel reference deviations stored in the memory, and obtain the obtained The index value is transmitted to the sender; the sender is configured to receive the index value from the receiver, and send the index value to a user equipment, so that the user equipment is based on the index value and Pre-existing primary and secondary stream channel reference offsets obtain a primary and secondary stream channel offset value corresponding to the index value, and obtain a secondary stream block length according to the primary and secondary stream channel offset values;

The primary and secondary stream channel reference deviations are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are linearly distributed, and the largest The primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB.

In an eighth aspect, a MIMO system is provided, the MIMO system comprising: the user equipment and the network device as described above. Embodiments of the present invention provide a primary and secondary stream channel reference deviation, a secondary stream acquisition method, a device, and a MIMO system. By setting an OdB maximum primary and secondary stream channel offset value, -31 dB - -12 dB is the minimum primary and secondary The value range of the flow channel offset value is such that the difference between the adjacent two main auxiliary stream channel offset values is less than or equal to 1 dB, that is, the linear value of the auxiliary stream channel offset value is changed. Fine, and thus the obtained auxiliary stream block length is more accurate, which solves the problem that the auxiliary stream block length selection is inaccurate due to the coarseness of the linear value of the main auxiliary stream channel deviation value in the prior art.

DRAWINGS

The drawings used in the embodiments or the description of the prior art are briefly introduced. It is obvious that the drawings in the following description are only some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a method for acquiring an auxiliary stream block length according to an embodiment of the present invention; FIG. 2 is a method for acquiring an auxiliary stream block length according to an embodiment of the present invention;

FIG. 3 is a user equipment according to an embodiment of the present invention;

FIG. 4 is another network device according to an embodiment of the present invention; FIG. 5 is a network device according to an embodiment of the present invention; FIG. 6 is another network device according to an embodiment of the present invention;

Figure Ί is a MIMO system provided by an embodiment of the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present invention takes a reference deviation of the primary and secondary stream channels in the MIMO system as an example for specific description.

In one aspect, the embodiment of the present invention provides a primary and secondary stream channel reference deviation, where the primary and secondary stream channel reference deviations are corresponding to 30-32 primary and secondary stream channel offset values and the primary and secondary stream channel offset values. The index value is composed, wherein the primary and secondary stream channel offset values are linearly distributed, and the maximum primary and secondary stream channel offset values are OdB (1 in the linear domain), and the minimum primary and secondary stream channel offset values are in a range of -3 1 dB- - 12 dB.

Further, the number of the primary and secondary stream channel offset values is 31, and the index value further includes the first cable. Quoted, used to indicate special features.

For example, the primary and secondary stream channel reference offsets are applicable to the dual stream transmission, where the primary and secondary stream channel offset values are: the difference between the secondary stream signal to noise ratio and the mainstream signal to noise ratio or the difference between the secondary stream power and the mainstream power. .

Since the 5-bit transmission index value is generally used in the MIMO technology, the number of index values can be set to a maximum of 32 ( ²⁵ ), wherein when the 32 index values are all used to indicate the primary and secondary stream channel offset values, the main The auxiliary stream channel offset value can be set to 32. Certainly, when the index value is transmitted by using other bits, the number of index values and the number of the primary and secondary stream channel offset values may be changed according to actual conditions. In the following embodiments, the 5-bit transmission index value is used for description.

Further, the index value may further include a first index value for indicating a special function, where the special function may be: indicating that the user equipment uses a single stream or the like, and correspondingly, the number of the primary and secondary stream channel offset values is 31.

Further, when the index value may further include a first index value and a second index value for indicating a special function, the special function may be: indicating that the user equipment uses a single stream, a physical layer to deactivate the MIMO characteristic, etc., correspondingly, the main The number of auxiliary channel offset values is 30.

For example, the precoding indocator (PCI) in the MIMO technology ensures that when the data is transmitted in dual streams, the auxiliary signal to noise ratio in the dB domain is smaller than the mainstream signal to noise ratio (which can also be expressed as the auxiliary stream power). The main-slave channel offset value set in this embodiment is less than 0 dB. According to actual experience, when the dual-stream transmission is used, the auxiliary-channel SNR is not too different from the mainstream SNR. It can also be said that the difference between the auxiliary stream power difference and the main stream power is not too large), otherwise the user equipment will automatically convert to single stream transmission data, and the difference generally does not exceed 12 dB. Therefore, the value of the main auxiliary stream channel deviation value The range can generally be -12-0 dB.

Since there is a certain margin in the actual use process, the range of the primary and secondary stream channel offset values should be slightly larger than the effective range, in order to make the distribution of the primary and secondary stream channel offset values corresponding to the index value in the effective range. The increase of the auxiliary stream block length is more accurate, so that the difference between the offset values of the adjacent two auxiliary stream channels set in the embodiment of the present invention may be up to 1 dB, and the channel deviation of the main and auxiliary streams set in this embodiment The maximum number of values is 32. Therefore, the minimum primary and secondary stream channel offset values can be -31 dB. Exemplarily, the primary and secondary stream channel offset values in the primary and secondary stream channel reference offsets may be represented by a dB domain or a linear domain, where the difference between the dB domain representation and the linear domain representation is: When the dB field is expressed, although the primary and secondary channel deviation values are linearly distributed in the dB domain, the primary and secondary channel deviation values in the linear domain corresponding to the index value are exponentially distributed. In this case, the index The value of the primary and secondary stream channel offsets corresponding to the value is not evenly distributed. The number of the primary and secondary stream channel offset values in the unit index value with the smaller index value is larger. When the linear domain is used, the index value and the corresponding value are used. The deviation value of the primary and secondary stream channels is linear, and the channel offset values of the primary and secondary stream corresponding to the index value are uniformly distributed within the range of the entire index value, so that when a larger index value is used, When the main auxiliary stream channel offset value selects the block length, the selected block length is more accurate. The primary and secondary stream channel reference deviations provided by the embodiments of the present invention are set to the maximum value of the primary and secondary stream channel offset values with the OdB being the maximum, and -31 dB--12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the adjacent The difference between the deviation values of the two main and auxiliary stream channels is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is made finer, so that the acquired auxiliary stream block length is more accurate, and the prior art is solved. The linear value of the main auxiliary stream channel deviation value causes the problem that the auxiliary stream block length selection is inaccurate due to coarse granularity.

The present invention is specifically described in the following six specific embodiments. The deviation values of the primary and secondary channel in the first embodiment to the third embodiment are represented by the dB domain, and the deviation values of the primary and secondary channels in the fourth embodiment to the sixth embodiment are used. The representation of the linear domain. Embodiment 1:

Referring to Table 2, a primary and secondary stream channel reference deviation design is provided according to an embodiment of the present invention, and the primary and secondary stream channel reference deviation design is expressed in a table form, and may of course be expressed in other forms.

The primary and secondary stream channel reference bias design includes 32 linearly distributed primary and secondary channel channel offset values represented by the dB domain, and the difference between the adjacent two primary and secondary stream channel offset values is 0.5 dB, and the largest primary and secondary The stream channel offset value is 0 dB and the smallest primary and secondary stream channel offset value is -15.5 dB. The 32 main auxiliary stream channel offset values respectively correspond to an index value.

Because a certain margin needs to be left in the actual use process, the range of the main auxiliary stream channel offset value in this embodiment is slightly larger than the effective range. Table 2 Main auxiliary stream channel deviation value [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 Embodiment 2: Referring to Table 3, another primary and secondary stream channel reference deviation design is provided according to an embodiment of the present invention. The reference design of the primary and secondary stream channels is represented in a tabular form, and may of course be expressed in other forms.

The primary and secondary stream channel reference bias design includes 31 linearly distributed primary and secondary channel channel offset values expressed in dB domain, and the difference between the adjacent two primary and secondary stream channel offset values is 0.5 dB, and the largest primary and secondary The stream channel offset value is 0 dB and the minimum primary and secondary stream channel offset value is -15 dB. Because a certain margin needs to be left in the actual use process, the range of the value of the main auxiliary stream channel deviation value in this embodiment is slightly larger than the effective range.

In addition, the primary and secondary stream channel reference deviation design includes 32 index values, wherein 31 index values respectively correspond to 31 primary and secondary stream channel offset values, which are used to indicate corresponding primary and secondary stream channel offset values, and the remaining An index value (first index value) is used to indicate a special function, and the first index value can be represented by any character or string, which is represented by "reserve" in this embodiment. In order to linearly distribute the 31 primary and secondary stream channel offset values in dB, an index value of 0 or an index value of 31 may be represented as the first index value. Table 3 Main and auxiliary stream channel deviation values [dB] Index value

0 31 - z\ -

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

-13 5

-13.5 4

-14 3

-14.5 2

-15 1 reserve 0 Example 3:

Referring to Table 4, another primary and secondary stream channel reference deviation design provided by the embodiment of the present invention is provided. The primary and secondary stream channel reference deviation design is expressed in a tabular form, and may of course be expressed in other forms.

The primary and secondary stream channel reference bias design includes 30 linearly distributed primary and secondary channel channel offset values expressed in dB domain, and the difference between the adjacent two primary and secondary stream channel offset values is 0.5 dB, and the largest primary and secondary The stream channel offset value is 0 dB and the minimum primary and secondary stream channel offset value is - 14.5 dB. Because a certain margin needs to be left in the actual use process, the range of the primary and secondary stream channel deviation values in this embodiment is slightly larger than the effective range.

In addition, the primary and secondary stream channel reference deviation design includes 32 index values, wherein 30 index values respectively correspond to 30 primary and secondary stream channel offset values, which are used to indicate corresponding primary and secondary stream channel offset values, and the remaining The two index values (the first index value and the second index value) are used to indicate a special function, and the first index value and the second index value may be represented by any character or a character string. In this embodiment, "reservel" is used to indicate the first The index value, with "reserve2" to indicate the second index value. In order to linearly distribute the 30 primary and secondary stream channel offset values in the dB domain, index value 0 and index value 1, or index value 30 and index value 31 may be represented as a first index value and a second index value.

Table 4

- π -

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

-13 5

-13.5 4

-14 3

-14.5 2 reserve 1 1 reserve2 0 Embodiment 4: Referring to Table 5, the reference deviation design of the primary and secondary stream channels is provided in the embodiment of the present invention, and the reference deviation design of the primary and secondary stream channels is expressed in a table form, of course, Other forms of representation.

The primary and secondary stream channel reference deviation design includes 32 linearly distributed primary and secondary stream channel offset values represented by linear domains. Preferably, the primary and secondary stream channel offset values may be expressed in the form of x/16. For example, see the table. 5, the primary and secondary stream channel offset values can be 8/16, 5.5/16, 5/16, etc., the difference between the adjacent two primary and secondary stream channel offset values is 0.5/16, and the largest primary and secondary stream channel offset values are 16/16, the minimum primary and secondary stream channel offset value is 0.5/16. The 32 primary and secondary stream channel offset values respectively correspond to one index value.

Table 5 Main and auxiliary stream channel deviation values Index value

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 5: Referring to Table 6, another primary and secondary stream channel reference deviation design provided by the embodiment of the present invention is provided. The primary and secondary stream channel reference deviation design is expressed in a table form, and may of course be expressed in other forms.

The primary and secondary stream channel reference bias design includes 31 linearly distributed primary and secondary channel channel offset values represented by linear domains. Preferably, the primary and secondary stream channel offset values may be expressed in the form of x/16. For example, see the table. 6 , the main and auxiliary stream channel deviation values can be 8/16, 5.5/16, 5/16, etc., the difference between the adjacent two main and auxiliary stream channel deviation values is 0.5/16, and the largest main auxiliary stream channel deviation value is 16/16, the minimum primary and secondary stream channel offset value is 1/16 (corresponding to -12dB in the dB domain).

In addition, the primary and secondary stream channel reference deviation design includes 32 index values, wherein 31 index values respectively correspond to 31 primary and secondary stream channel offset values, which are used to indicate corresponding primary and secondary stream channel offset values, and the remaining An index value (first index value) is used to indicate a special function, and the first index value can be represented by any character or string, which is represented by "reserve" in this embodiment. In order to linearly distribute the 31 primary and secondary stream channel offset values in the linear domain, an index value of 0 or an index value of 31 may be represented as the first index value. 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

1/16 1 reserve 0 Example 6: Referring to Table 7, another primary and secondary stream channel reference deviation design provided by the embodiment of the present invention is shown in a tabular form, and may of course be expressed in other forms.

The primary and secondary stream channel reference bias design includes 30 linearly distributed primary and secondary channel channel offset values represented by linear domains. Preferably, the primary and secondary stream channel offset values may be expressed in the form of x/15. For example, see the table. 5, the main and auxiliary stream channel deviation values can be 8/15, 5.5/15, 5/15, etc., the difference between the adjacent two main and auxiliary stream channel deviation values is 0.5/15, and the maximum primary and auxiliary stream channel deviation values are 15/15 (corresponding to 0 dB), the minimum primary and secondary stream channel offset is 0.5/15 (corresponding to -15dB in the dB domain). In addition, the primary and secondary stream channel reference deviation design includes 32 index values, wherein 30 index values respectively correspond to 30 primary and secondary stream channel offset values, which are used to indicate corresponding primary and secondary stream channel offset values, and the remaining The two index values (the first index value and the second index value) are used to indicate a special function, and the first index value and the second index value may be represented by any character or a character string. In this embodiment, "reservel" is used to indicate the first The index value, with "reserve2" to indicate the second index value. In order to linearly distribute the 30 primary and secondary stream channel offset values in the linear domain, index value 0 and index value 1, or index value 30 and index value 31 may be represented as a first index value and a second index value.

Table Ί

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 understood by those skilled in the art that the above-mentioned Embodiments 1 to 6 are merely illustrative of the present invention. In fact, in the dB domain, 0.375 - 1 dB can be selected. Any value of the difference between the two adjacent primary and secondary stream channel offset values, for example, 0.4 dB, 0.6 dB, 0.8 dB, etc., and the adjacent two primary and secondary stream channel offset values selected in the range of 0.375 - 1 dB The smaller the difference, the smaller the granularity of the linear value of the main auxiliary stream channel deviation value, and the more accurate the auxiliary stream block length is obtained; in the linear domain, any one of 0.025-0.035 can be selected as the adjacent two main and auxiliary The difference in flow channel offset values. In one aspect, an embodiment of the present invention provides a method for acquiring a secondary stream block length. Referring to FIG. 1, the method includes:

101 : receiving an index value sent by the network device;

For example, the information sent by the network device may also receive the following information from the network device, and may further include: a power offset, a code length of the block length, and a mapping relationship between the preset gain factor and the block length.

102: Obtain, according to the index value and the pre-stored primary and secondary stream channel reference offsets, a primary and secondary stream channel offset value corresponding to the index value,

Exemplarily, since the 5-bit transmission index value is used in the MIMO technology, the number of index values can be set to a maximum of 32 ( ²⁵ ), wherein the 32 index values are all used to indicate the primary and secondary stream channel offset values. When the primary and secondary stream channel offset values can be set to 32. Certainly, when the index value is transmitted by using other bits, the number of index values and the number of the primary and secondary stream channel offset values may be changed according to actual conditions. In the following embodiments, the 5-bit transmission index value is used for description.

Exemplarily, the precoding indocator (PCI) selection method of the peripheral component in the MIMO technology ensures that when the dual stream transmits data, it is supplemented in the dB domain. The flow-to-noise ratio is smaller than the mainstream signal-to-noise ratio (which can also be expressed as the auxiliary stream power is less than the mainstream power). Therefore, the primary and secondary stream channel offset values set in this embodiment are all less than 0 dB. According to actual experience, when dual-stream transmission is used, The signal-to-noise ratio of the auxiliary stream is not too different from the mainstream signal-to-noise ratio (it can also be expressed as the difference between the auxiliary stream power difference and the mainstream power is not too large), otherwise the user equipment will automatically convert to the single stream transmission data, the difference Generally, it does not exceed 12 dB. Therefore, the value of the main and auxiliary stream channel deviation values can generally be -12 - 0 dB.

Since there is a certain margin in the actual use process, the range of the primary and secondary stream channel offset values should be slightly larger than the effective range, in order to make the distribution of the primary and secondary stream channel offset values corresponding to the index value in the effective range. The increase of the auxiliary stream block length is more accurate, so that the difference between the offset values of the adjacent two auxiliary stream channels set in the embodiment of the present invention may be up to 1 dB, and the channel deviation of the main and auxiliary streams set in this embodiment The maximum number of values is 32. Therefore, the minimum primary and secondary stream channel offset values can be -31 dB. Exemplarily, when the range of the primary and secondary stream channel offset values is determined by the above method, the difference between the adjacent two primary and secondary stream channel offset values may be controlled to be between 0.375 and 1 dB. In practical applications, in the dB domain, any value of 0.375-1 dB can be selected as the difference between the adjacent two main and auxiliary channel channel offset values, for example, 0.4 dB, 0.6 dB, 0.8 dB, etc., in the linear domain. , any value from 0.025 to 0.035 can be selected as the difference between the deviation values of the adjacent two primary and secondary channels, see Table 2 - Table 7, the difference between the adjacent two primary and secondary channels is 0.5 dB, 0.5 dB, 0.5 dB, 0.5/16, 0.5/16, 0.5/15.

And the smaller the difference between the deviation values of the adjacent two main and auxiliary channels selected in the range of 0.375 - 1 dB, the more the number of the auxiliary stream channel deviation values distributed in the linear domain corresponding to the unit index value, when 0.375 dB is selected As the difference between the deviation values of the adjacent two main and auxiliary stream channels, the linear value of the main auxiliary stream channel deviation value is the smallest, and the obtained auxiliary stream block length is the most accurate.

Exemplarily, the primary and secondary stream channel offset values in the primary and secondary stream channel reference offsets may be represented by a dB domain or a linear domain, where the difference between the dB domain representation and the linear domain representation is: When the dB field is expressed, although the primary and secondary channel deviation values are linearly distributed in the dB domain, the primary and secondary channel deviation values in the linear domain corresponding to the index value are exponentially distributed. In this case, the index The value of the primary and secondary stream channel offsets corresponding to the value is not evenly distributed. The number of the primary and secondary stream channel offset values in the unit index value with the smaller index value is larger. When the linear domain is used, the index value and the corresponding value are used. The primary and secondary stream channel offset values are linear, and the index value corresponds to the primary and secondary stream channel offset values over the entire index value. The value range is evenly distributed, so that when the block length of the primary and secondary stream channel corresponding to the larger index value is used to select the block length, the selected block length is more accurate.

103: Acquire a secondary stream block length according to the primary and secondary stream channel offset values;

For example, the process of obtaining the auxiliary stream block length according to the primary and secondary stream channel offset values may include: multiplying the primary and secondary stream channel offset values by a mainstream power offset to obtain a power offset of the mainstream corresponding auxiliary stream. Obtaining a gain factor of the auxiliary stream according to the power offset of the auxiliary stream and the number of code channels of the mainstream block length; acquiring the auxiliary stream according to the gain factor of the auxiliary stream and a mapping relationship between the preset gain factor and the block length The length of the block. The method for acquiring the auxiliary stream block length provided by the embodiment of the present invention, by setting the OdB to be the maximum primary and auxiliary stream channel offset value, -31 dB-- 12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the phase The difference between the deviation values of the adjacent two main auxiliary stream channels is less than or equal to 1 dB, that is, the linear value of the auxiliary stream channel deviation value is made finer, so that the obtained auxiliary stream block length is more accurate, and the prior art is solved. The problem that the auxiliary stream block length selection is inaccurate due to the coarse granularity of the linear value of the main auxiliary stream channel deviation value.

In one aspect, an embodiment of the present invention provides a method for acquiring an auxiliary stream block length. Referring to FIG. 2, the method includes:

201 : Estimating the deviation value of the primary and secondary streams;

202: Obtain an index value corresponding to the deviation value of the primary and secondary streams according to the deviation value of the primary and secondary streams and the pre-stored primary and secondary stream channel reference deviations;

203: Send an index value to the user equipment, so that the user equipment acquires a primary and secondary stream channel offset value corresponding to the index value according to the index value and the pre-stored primary and secondary stream channel reference offset, and according to the primary and secondary The stream channel offset value is used to obtain the auxiliary stream block length, where the primary and secondary stream channel reference offsets are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values.

The primary and secondary stream channel offset values are linearly distributed, and the maximum primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB.

The method for acquiring the auxiliary stream block length provided by the embodiment of the present invention, by setting the OdB to be the maximum primary and auxiliary stream channel offset value, -31 dB-- 12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the phase The difference between the deviation values of the adjacent two main auxiliary stream channels is less than or equal to 1 dB, that is, the linear value of the auxiliary stream channel deviation value is made finer, so that the obtained auxiliary stream block length is more accurate, and the prior art is solved. Auxiliary flow block due to the coarseness of the linear value of the main and auxiliary stream channel deviation values Long choices are inaccurate.

In one aspect, the embodiment of the present invention provides a user equipment 30. Referring to FIG. 3, the method includes: a receiving unit 301, a first obtaining unit 302, and a second acquiring unit 303, where

The receiving unit 301 is configured to receive an index value sent by the network device, and transmit the received index value to the first acquiring unit 302.

Exemplarily, the information sent by the network device may also receive the following information from the network device, and may further include: a mainstream power offset, a code channel number of the mainstream block length, and a mapping relationship between the preset gain factor and the block length.

The first obtaining unit 302 is configured to receive the index value from the receiving unit 301, and obtain a primary and secondary stream channel offset value corresponding to the index value according to the index value and the pre-stored primary and secondary stream channel reference offset, and the acquired The primary and secondary stream channel offset values are transmitted to the second obtaining unit 303;

The primary and secondary stream channel reference deviations are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are linearly distributed, and the largest The primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB;

Exemplarily, the precoding indocator (PCI) in the MIMO technology ensures that when the data is transmitted in dual streams, the auxiliary signal to noise ratio in the dB domain is smaller than the mainstream signal to noise ratio (which can also be expressed as the auxiliary stream power). Less than the mainstream power), so this embodiment is designed The deviation of the main and auxiliary stream channels is less than 0 dB. According to the actual experience, when the dual-stream transmission is used, the signal-to-noise ratio of the auxiliary stream is not too different from the mainstream signal-to-noise ratio (it can also be expressed as the auxiliary stream power difference). The mains power difference will not be too large. Otherwise, the user equipment will automatically convert to single stream transmission data, and the difference will generally not exceed 12 dB. Therefore, the main and auxiliary stream channel offset values can generally range from -12 to 0 dB. .

Since there is a certain margin in the actual use process, the range of the primary and secondary stream channel offset values should be slightly larger than the effective range, in order to make the distribution of the primary and secondary stream channel offset values corresponding to the index value in the effective range. The increase of the auxiliary stream block length is more accurate, so that the difference between the offset values of the adjacent two auxiliary stream channels set in the embodiment of the present invention may be up to 1 dB, and the channel deviation of the main and auxiliary streams set in this embodiment The maximum number of values is 32. Therefore, the minimum primary and secondary stream channel offset values can be -31 dB.

Exemplarily, when the range of the primary and secondary stream channel offset values is determined by the above method, the difference between the adjacent two primary and secondary stream channel offset values may be controlled to be between 0.375 and 1 dB. In practical applications, in the dB domain, any value of 0.375-1 dB can be selected as the difference between the adjacent two main and auxiliary channel channel offset values, for example, 0.4 dB, 0.6 dB, 0.8 dB, etc., in the linear domain. , any value from 0.025 to 0.035 can be selected as the difference between the deviation values of the adjacent two primary and secondary channels, see Table 2 - Table 7, the difference between the adjacent two primary and secondary channels is 0.5 dB, 0.5 dB, 0.5 dB, 0.5/16, 0.5/16, 0.5/15.

Exemplarily, the primary and secondary stream channel offset values in the primary and secondary stream channel reference offsets may be represented by a dB domain or a linear domain, where the difference between the dB domain representation and the linear domain representation is: When the dB field is expressed, although the primary and secondary channel deviation values are linearly distributed in the dB domain, the primary and secondary channel deviation values in the linear domain corresponding to the index value are exponentially distributed. In this case, the index The value of the primary and secondary stream channel offsets corresponding to the value is not evenly distributed. The number of the primary and secondary stream channel offset values in the unit index value with the smaller index value is larger. When the linear domain is used, the index value and the corresponding value are used. The deviation value of the primary and secondary stream channels is linear, and the channel offset values of the primary and secondary stream corresponding to the index value are uniformly distributed within the range of the entire index value, so that when a larger index value is used, Primary and secondary stream channel When the offset value selects the block length, the selected block length is more accurate.

The second obtaining unit 303 is configured to receive the primary and secondary stream channel offset values from the first acquiring unit 302, and obtain the auxiliary stream block length according to the primary and secondary stream channel offset values.

For example, the process of obtaining the auxiliary stream block length according to the primary and secondary stream channel offset values may include: multiplying the primary and secondary stream channel offset values by a mainstream power offset to obtain a power offset of the mainstream corresponding auxiliary stream. Obtaining a gain factor of the auxiliary stream according to the power offset of the auxiliary stream and the number of code channels of the mainstream block length; acquiring the auxiliary stream according to the gain factor of the auxiliary stream and the preset gain factor and the block length mapping relationship Block length.

Optionally, the user equipment 30 may further include a storage unit, configured to store a primary and secondary stream channel reference offset. The user equipment provided by the embodiment of the present invention sets the ODF to the maximum primary and secondary stream channel offset value, and the -31 dB - - 12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the adjacent two masters The difference of the offset value of the auxiliary stream channel is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is made finer, so that the obtained auxiliary stream block length is more accurate, and the primary and secondary stream channels are solved in the prior art. The linear value of the deviation value is coarse grain size resulting in an inaccurate selection of the auxiliary stream block length.

In one aspect, an embodiment of the present invention provides another user equipment 30. Referring to FIG. 4, a memory 401, a receiver 402, and a processor 403 are provided.

a memory 401, configured to store a primary and secondary stream channel reference offset, where the primary and secondary stream channel reference offset is composed of 30-32 primary and secondary stream channel offset values and an index value corresponding to the primary and secondary stream channel offset values, where The main auxiliary stream channel deviation value is linearly distributed, and the maximum main auxiliary stream channel deviation value is OdB, and the minimum main auxiliary stream channel deviation value ranges from -31 dB to 12 dB; exemplarily, at present, In the MIMO technology, a 5-bit transmission index value is used, so the number of index values can be set to a maximum of 32 ( ²⁵ ), wherein when the 32 index values are all used to indicate the primary and secondary stream channel offset values, the primary and secondary stream channels are used. The deviation value can be set to 32. Certainly, when the index value is transmitted by using other bits, the number of index values and the number of the primary and secondary stream channel offset values may be changed according to actual conditions. In the following embodiments, the 5-bit transmission index value is used for description.

Further, the index value may further include a first index value for indicating a special function, where the special function may be: indicating that the user equipment uses a single stream or the like, and correspondingly, the number of the primary and secondary stream channel offset values is 31. Further, when the index value may further include a first index value and a second index value for indicating a special function, the special function may be: indicating that the user equipment uses a single stream, a physical layer to deactivate the MIMO characteristic, etc., correspondingly, the main The number of auxiliary channel offset values is 30.

Exemplarily, the precoding indocator (PCI) in the MIMO technology ensures that when the data is transmitted in dual streams, the auxiliary signal to noise ratio in the dB domain is smaller than the mainstream signal to noise ratio (which can also be expressed as the auxiliary stream power). The main-slave channel offset value set in this embodiment is less than 0 dB. According to actual experience, when the dual-stream transmission is used, the auxiliary-channel SNR is not too different from the mainstream SNR. It can also be said that the difference between the auxiliary stream power difference and the main stream power is not too large), otherwise the user equipment will automatically convert to single stream transmission data, and the difference generally does not exceed 12 dB. Therefore, the value of the main auxiliary stream channel deviation value The range can generally be -12 - 0 dB.

Exemplarily, the primary and secondary stream channel offset values in the primary and secondary stream channel reference offsets may be represented by a dB domain or a linear domain, where the dB domain is used to represent and use a linear domain manner. The difference between the two representations is: When the dB field is used, although the main and auxiliary stream channel offset values are linearly distributed in the dB domain, the main and auxiliary stream channel offset values in the linear domain corresponding to the index value are exponentially distributed. In this case, the offset value of the primary and secondary stream channels corresponding to the index value is not uniformly distributed, and the number of the primary and secondary stream channel offset values corresponding to the index value of the index value is smaller; the linear domain is used to represent When the index value is linear with the corresponding primary and secondary stream channel offset values, the primary and secondary stream channel offset values corresponding to the index value are uniformly distributed within the range of the entire index value, so that when used When the large index value corresponds to the main auxiliary stream channel offset value selection block length, the selected block length is more accurate.

The receiver 402 is configured to receive an index value sent by the network device, and transmit the received index value to the processor 403;

For example, the information sent by the network device may also receive the following information from the network device: the mainstream power offset, the number of code channels of the mainstream block length, and the mapping relationship between the preset gain factor and the block length.

The processor 403 is configured to receive the index value from the receiver 402, and obtain a primary and secondary stream channel offset value corresponding to the index value according to the primary and secondary stream channel reference offsets stored in the memory 401, and according to the primary and secondary stream channel offsets. The value gets the length of the auxiliary stream block.

For example, the process of obtaining the auxiliary stream block length according to the primary and secondary stream channel offset values may include: multiplying the primary and secondary stream channel offset values by a mainstream power offset to obtain a power offset of the mainstream corresponding auxiliary stream. Obtaining a gain factor of the auxiliary stream according to the power offset of the auxiliary stream and the number of code channels of the mainstream block length; acquiring the auxiliary stream according to the gain factor of the auxiliary stream and the preset gain factor and the block length mapping relationship Block length. The user equipment provided by the embodiment of the present invention sets the ODF to the maximum primary and secondary stream channel offset value, and the -31 dB - - 12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the adjacent two masters The difference of the offset value of the auxiliary stream channel is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is made finer, so that the obtained auxiliary stream block length is more accurate, and the primary and secondary stream channels are solved in the prior art. The linear value of the deviation value is coarse grain size resulting in an inaccurate selection of the auxiliary stream block length.

In one aspect, an embodiment of the present invention provides a network device 50, which is shown in FIG. 5, and includes: an estimating unit 501, an obtaining unit 502, and a sending unit 503, where

The estimating unit 501 is configured to estimate a deviation value of the primary auxiliary stream, and transmit the estimated deviation value of the primary auxiliary stream to the obtaining unit 502; The obtaining unit 502 is configured to receive the index value from the estimating unit 501, and obtain an index value corresponding to the deviation value of the primary auxiliary stream according to the deviation value of the primary auxiliary stream and the pre-stored primary/secondary channel reference deviation. And transmitting the obtained index value to the sending unit 503;

The sending unit 503 is configured to receive the index value from the obtaining unit 502, and send the index value to the user equipment, so that the user equipment acquires the reference value according to the index value and the pre-stored primary and secondary stream channel reference offsets. Determining the primary and secondary stream channel offset values corresponding to the index value, and obtaining the auxiliary stream block length according to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel reference offsets are from 30-32 primary and secondary stream channel offset values and The auxiliary stream channel deviation value is composed of a corresponding index value, the main auxiliary stream channel deviation value is linearly distributed, and the maximum main auxiliary stream channel deviation value is OdB, and the minimum main auxiliary stream channel deviation value ranges from -31 dB - -12 dB.

Optionally, the network device 50 may further include a storage unit, configured to store a primary and secondary stream channel reference offset.

The network device provided by the embodiment of the present invention sets the ODF to the maximum primary and secondary stream channel offset value, and the -31 dB - - 12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the adjacent two masters The difference of the offset value of the auxiliary stream channel is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is made finer, so that the obtained auxiliary stream block length is more accurate, and the primary and secondary stream channels are solved in the prior art. The linear value of the deviation value is coarse grain size resulting in an inaccurate selection of the auxiliary stream block length.

In one aspect, an embodiment of the present invention provides another network device 50. Referring to FIG. 6, the method includes: a processor 601, a receiver 602, and a transmitter 603, where

a memory 601, configured to store a primary and secondary stream channel reference offset;

The processor 602 is configured to estimate a deviation value of the primary and secondary streams, and obtain an index value corresponding to the estimated deviation value of the primary and secondary streams according to the primary and secondary stream channel reference deviations stored in the memory 601, and obtain the obtained index value. Transmitted to the transmitter 603;

The transmitter 603 is configured to receive the index value from the receiver 602, and send the index value to the user equipment, so that the user equipment acquires the reference value according to the index value and the pre-stored primary and secondary stream channel reference offsets. Determining the primary and secondary stream channel offset values corresponding to the index value, and obtaining the auxiliary stream block length according to the primary and secondary stream channel offset values; wherein, the primary and secondary stream channel reference offsets are from 30-32 primary and secondary stream channel offset values and The auxiliary stream channel deviation value is composed of a corresponding index value, and the main auxiliary stream channel deviation value is linearly divided. The maximum primary and secondary auxiliary channel offset values are OdB, and the minimum primary and secondary flow channel offset values range from -31 dB to -12 dB. The network device provided by the embodiment of the present invention sets the ODF to the maximum primary and secondary stream channel offset value, and the -31 dB--12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the two adjacent masters The difference of the offset value of the auxiliary stream channel is less than or equal to 1 dB, that is, the linear value of the offset value of the auxiliary stream channel is made finer, so that the obtained auxiliary stream block length is more accurate, and the primary and secondary stream channels are solved in the prior art. The linear value of the deviation value is coarse grain size resulting in an inaccurate selection of the auxiliary stream block length.

In one aspect, the embodiment of the present invention provides a MIMO system, and FIG. 7 includes: the user equipment 30 according to any of the foregoing embodiments, and the network device 50 described in any of the foregoing embodiments.

In the MIMO system provided by the embodiment of the present invention, by setting the OdB as the maximum primary and secondary stream channel offset value, -31 dB - -12 dB is the minimum value range of the primary and secondary stream channel offset values, so that the adjacent two masters The difference of the offset value of the auxiliary stream channel is less than or equal to 1 dB, which makes the linear value of the offset value of the auxiliary stream channel smaller, which makes the acquired auxiliary stream block length more accurate, improves the performance of the MIMO system, and solves the prior art. The problem that the auxiliary stream block length selection is inaccurate due to the coarse granularity of the linear value of the primary and secondary stream channel offset values, and the performance of the MIMO system is poor. A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Claim

A primary and secondary stream channel reference deviation, wherein the primary and secondary stream channel reference deviation is represented by an offset value of 30-32 primary and secondary stream channel offset values and a deviation value from the primary and secondary stream channel values. The composition, wherein the main auxiliary stream channel deviation value is linearly distributed, and the maximum main auxiliary stream channel deviation value is OdB, and the minimum main auxiliary stream channel deviation value ranges from -31 dB to -12 dB.

2. The primary and secondary stream channel reference offset according to claim 1, wherein the primary and secondary stream channel offset values are represented by a dB domain.

3. The primary and secondary stream channel reference deviation according to claim 1 or 2, wherein the difference between the adjacent two of the primary and secondary stream channel offset values is 0.5 dB.

The primary and secondary stream channel reference deviation according to claim 1, wherein the primary and secondary stream channel offset values are represented by a linear domain.

The primary and secondary stream channel reference deviation according to claim 1 or 4, characterized in that the difference between the adjacent two of the primary and secondary stream channel offset values is 0.5/16 or 0.5/15.

The primary and secondary stream channel reference deviation according to any one of claims 1 to 5, wherein the number of the primary and secondary stream channel offset values is 31, and the index value further includes a first index value. , used to indicate special features.

The primary and secondary stream channel reference deviation according to any one of claims 1 to 5, wherein the number of the primary and secondary stream channel offset values is 30, and the index value further includes a first index value. And a second index value that is used to indicate a special function.

8. A method for acquiring a secondary stream block length, comprising:

Receiving an index value sent by the network device;

Obtaining a primary and secondary stream channel offset value corresponding to the index value according to the index value and a pre-stored primary and secondary stream channel reference offset;

Obtaining a secondary stream block length according to the primary and secondary stream channel offset values;

The primary and secondary stream channel reference offsets are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are Linear distribution, and the maximum primary and secondary stream channel offset value is OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB.

9. The method for acquiring a secondary stream block length according to claim 8, wherein the primary and secondary stream channel offset values are represented by a dB domain.

The method for acquiring the length of the auxiliary stream block according to claim 8 or 9, wherein The difference between the two adjacent primary and secondary stream channel offset values is 0.5 dB.

1 . The method for acquiring a secondary stream block length according to claim 8, wherein the primary and secondary stream channel offset values are represented by a linear domain.

The method for acquiring the length of the auxiliary stream block according to claim 8 or 11, wherein the difference between the deviation values of the adjacent two of the main and auxiliary stream channels is 0.5/16.

The method for acquiring a secondary stream block length according to any one of claims 8 to 12, wherein the number of the primary and secondary stream channel offset values is 31, and the index value further includes a first index. Value, used to indicate special features.

The method for acquiring a secondary stream block length according to any one of claims 8 to 12, wherein the number of the primary and secondary stream channel offset values is 30, and the index value further includes a first index. The value and the second index value are used to indicate special functions.

15. A method for acquiring a length of a secondary stream block, comprising:

Estimating the deviation of the primary and secondary streams;

A user equipment, comprising: a receiving unit, a first obtaining unit, and a second acquiring unit, where

The second obtaining unit is configured to receive the primary and secondary stream channel offset values from the first acquiring unit, and obtain an auxiliary stream block length according to the primary and secondary stream channel offset values; The primary and secondary stream channel reference offsets are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are Linear distribution, and the maximum primary and secondary stream channel offset value is OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to -12 dB.

17. A user equipment, comprising: a memory, a receiver, and a processor, wherein

The primary and secondary stream channel reference deviations are composed of 30-32 primary and secondary stream channel offset values and index values corresponding to the primary and secondary stream channel offset values, wherein the primary and secondary stream channel offset values are linearly distributed, and the largest The primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values range from -31 dB to - 12 dB.

A network device, comprising: an estimating unit, an obtaining unit, and a sending unit, where

The acquiring unit is configured to receive, by the estimating unit, the estimated offset value of the primary and secondary streams, and acquire the primary auxiliary stream according to the deviation value of the primary and secondary streams and the pre-stored primary and secondary channel reference offsets The index value corresponding to the deviation value, and transmitting the obtained index value to the sending unit;

A network device, comprising: a processor, a receiver, and a transmitter, where

The processor is configured to estimate a deviation value of the primary and secondary streams, and obtain an index value corresponding to the estimated deviation value of the primary and secondary streams according to the primary and secondary stream channel reference deviations stored in the memory, and obtain the obtained An index value is transmitted to the transmitter;

The transmitter is configured to receive the index value from the receiver, and send the index value to a user equipment, so that the user equipment obtains according to the index value and a pre-stored primary and secondary stream channel reference offset a primary and secondary stream channel offset value corresponding to the index value, and acquiring a secondary stream block length according to the primary and secondary stream channel offset values; wherein, the primary and secondary stream channel reference offsets are from 30-32 primary and secondary stream channel offset values and And the primary and secondary stream channel offset values - corresponding index values, the primary and secondary stream channel offset values are linearly distributed, and the largest primary and secondary stream channel offset values are OdB, and the minimum primary and secondary stream channel offset values are values The range is -31 dB - -12 dB.

A MIMO system, comprising: the user equipment according to claim 16 or 17, and the network device according to claim 18 or 19.