WO2010148918A1

WO2010148918A1 - Channel information feedback method and device

Info

Publication number: WO2010148918A1
Application number: PCT/CN2010/073472
Authority: WO
Inventors: 孙云锋; 姜静; 张峻峰; 朱常青
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-06-23
Filing date: 2010-06-02
Publication date: 2010-12-29
Also published as: CN101932000A; CN101932000B

Abstract

A channel information feedback method and device are provided in the present invention. The channel information feedback method includes that a receiving party, according to a measurement result, calculates to obtain the channel information of each site in a measurement set, maps directly, on the designated sub-frames and/or time slots, at least a part of the obtained channel information to the resource elements which are allocated for feeding back the channel information, and sends the mapped channel information to a sending party. The channel information feedback device includes a channel information calculating module, a channel information processing module and a sending module. With only a low overhead, the present invention enables the sending party to obtain precise channel feedback information.

Description

Information reverse method and device

Wood field

It involves high- and long-term (o gTe vo o -Adv ced, T-A) systems, especially related to the method and device of the information in the system. Background

In the long-term o gTe vo o , T ) system, the current information is reversed in the form of a general way, that is, the information of the reverse letter, the information of the matrix, and the information of the matrix index (P) indicate the information. Fang Gen’s anti-information information is the most powerful way. The information can be used in the downside (used to reflect the same resource sheep R, yes), the same P information, in

In the current matrix set, the combined pre-matrix.

Increase, the need for this will increase the teaching. Up

The ability to better match the quantity will require a large number of this matrix, which greatly increases the terminal matching. The results of Lixin indicate that the former T is the capacity requirement of the (T)T-A system. In the previous one, in multi ( ood e m -po smsso d ecep o , C h ), the same support and method are reversed.

Information program.

In the reverse of the letter information, the counter includes the inverse of the information and the inverse of the information. In the information inverse, the user ( ) measurement measurement set

The information of the letter, in the sub-inverse of each. The way of anti-information mainly includes the inverse of the anti-matrix information of the information.

In these, the way of information and information is reversed separately, but the direct amount of information is very large. The big opposite is the upside

Tolerant. Day configuration (odeB) And the user receives each) The elements of the matrix are the same as the anti-subsequences of the different anti-methods of the gods.

In the inverse quantity mode, and the amount of teaching part b m . In the case of direct opposition, the inverse of the meson band 2 (b). In the T system, the sub-particles of the inverse, the sub-intermediate or multi-resource (R) in the inverse, the information of the meson band has a phase (similar).

And the inverse of the matrix, the matrix of R, and therefore the inverse of + (-) /2. Therefore, the inverse R, the inverse formula of the meson band W +2 1) 2 1) (b). In the above, there is almost no consideration of the factors caused by the factors. Considering, it will multiply in the near future.

Content

The wood problem to be solved is to provide a method and device for information reversal, and only need to have less information to obtain the information.

In the solution, the method provides information inverse, including receiving the root measurement result, obtaining the information of each part in the measurement set, and mapping at least part of the obtained information to the anti-superstition directly on the specified sub- and/or The resource information is allocated to the sheep, and the mapped information is sent.

The method can have the following characteristics

Receiving the method of mapping at least part of the obtained information to the resource sheep, the method is close to the superstitious information to perform the following or more

, rationality and .

The method can have the following characteristics

The resulting information is an element in the information matrix, a matrix of superstitious information matrix forces, or a channel matrix directly extracted from the sub-band.

The method can have the following characteristics

At least part of the obtained letter information is directly on the specified sub- and/or In the step of mapping to the resource sheep allocated by the anti-superstition information, the path obtained by the superstitious information downlink, the channel larger than the receiving channel, or the largest m to the road

Anti, where, m's.

The method can have the following characteristics

In the step of receiving the opposite of the channel, the near-inclusive information of each channel that receives the near-reverse is reversed, and the information that receives the largest of the reversed channels is reversed.

The method can have the following characteristics

Or more, receive users, superstitious information, downlink information, including multiple, users send superstition information to each, or

Users, receiving, superstitious information, uplink information.

The above method can have the following special methods for high-long-term T-A systems. The information provided by this device is reversed to include information, information, and

The result of the measurement is obtained, and each of the information information in the measurement set is obtained, and at least part of the obtained information is sent to the information to be mapped.

The upper device can have the following features

Nearly at least part of the obtained superstition information is mapped to the superstitious information to perform the following or more

And rational. The upper device can have the following features

Superstition information obtained by superstitious information includes elements in the information matrix, a matrix of superstitious information matrix forces, or a channel matrix directly extracted from the sub-atoms

Superstition Information Anti-message Information Superstition Elements in the information matrix. The upper device can have the following features

Superstitious information The information obtained by the downlink is obtained by the way of the track, m to the number of tracks, where m is.

The upper device can have the following special information

information.

The method and device directly map information to the resource sheep, and the resources in the matrix need to be resourced, so that the direct inverse and the original characteristics can be greatly reduced, so that a more pre-vector can be obtained, especially in the case of high ratio. under.

1 is the schematic of this

2 is the flow of the method, wherein the step is

3 is the function of each phase of the user

4 is a schematic representation of the distribution characteristics 5 is the way of this quantity in the opposite direct way, in the middle

The preferred way of this

The following is a detailed description.

1 Compared with the direct inverse and the amount of precision in the same case, the direct reverse time does not.

1

(carrier) quantization quantization direct inverse (no)

2 1 QP elements b 2 resource sheep

b quantified department and eso ceeeme

Each b R

2. 2 configuration QP elements 2b 4 resource sheep

Department of b and

Each 2b

4 2 QP elements b 8 resource sheep

Department of b and

Each b

4 4 QP Elements 2b 16 Resources Sheep

Department of b and

Each 2b

8 2 QP each 16 resource sheep

b 2 , directly reverse 2 times.

2

(Resources Sheep Yuanjiao Quantitative Quantification Direct Reverse (2

) times) 2 1 QP Elements 2b 4 Resources Sheep

2b quantified ministry

Each 2b

2. 2 configuration QP elements 4b 8 resource sheep

2b's department and

Each 4b

4 2 QP elements 2b 16 resource sheep

2b's department and

Each 2b

4 4 QP elements 4b 32 resource sheep

2b's department and

Each 4b

8 2 QP elements and 32 resource sheep

2b's department and

b 3 , directly reverse 4 times.

3

(Resources Sheep Yuanjiao Quantitative Quantification Direct Inverse (4

) times)

2 1 QP elements 4b 8 resource sheep

4b quantified ministry

Each 4b

2. 2 configuration QP elements 8b 16 resource sheep

Department of 4b and

Each 8b

4 2 QP elements 4b 32 resource sheep

Department of 4b and Each 4b

4 4 QP elements 8b 64 resource sheep

Department of 4b and

Each 8b

8 2 QP elements and 64 resource sheep

Department and Department of 4b

Expressed by 2b

The way 3 can be seen is reversed. Even in the case of very rough quantities, the reverse channel needs to be greater than 1. Where direct information is mapped to the resource sheep, then in the matrix

It is necessary to introduce the resource sheep, so it can greatly reduce the direct and reverse original characteristics, so that the square can get a more pre-vector. Therefore, this paper proposes a method of information direct carrier mapping, and part of the reliability is reduced. Especially in the case of high ratio and high uplink, it is very good.

1 is a sign of the reverse of T-China’s information.

.

According to Hugh 2, which receives the information, the process of receiving and counter-reporting includes

Step 110, measuring information of the set, using each of the differences in the measurement set

Where the measurement set is greater than or equal to 1, in the mode, the collective force measurement set is measured.

Step 120, extracting downlink information

The extracted letter information is an element in the information matrix, and the information matrix may be a matrix of tracks or a channel matrix directly extracted in the sub-field. In the receiving, the location information is first obtained, and the channel teaching information on the subcarrier is obtained by interpolation or filtering.

, receiving the eyesight, then the matrix can represent

Which represents the same channel, of.

The direct reverse method is to directly map the channels (the respective ones) to the uplink subcarriers, for example, the channel average on each meson carrier or the middle of the channel, the largest upper channel is reversed.

The matrix is the channel in the meson

1

R

, in which the information matrix on the sub-intermediate carrier, the sub-carrier within the nucleus, the special matrix. Step 130: The downlink information in the information matrix is an example of an element in the information matrix. 1, can be the distribution of the values of the elements in the information matrix. For each element in the matrix, the distribution of the parts is 0.1 10, then 1, and the knife 4, the distribution is 0.5623 1.7783, and the amplitude of the rabbit is small. The only need to receive the amplitude, you can. Step 140: The power of the downlink information in the information matrix is configured by the control command, and the information may be narrowed to match the power of the information. carried out , , the same as the opposite.

Step 150, execution of the downlink information

The purpose of executive management is to improve the reliability of teaching. In step 160, the obtained downlink information is directly mapped to the resource sheep that are de-allocated by the high-order downlink information on the specified sub- and/or/or, and sent to each.

In the reverse of the downlink information, the resource sheep for the reverse of the downlink information can be allocated in the uplink control or the uplink channel, and the resource sheep are allocated in the uplink and each channel.

Step 130 150 in the above process is a step that can be performed before the information mapping is performed. In this case, the user who can reverse the information (in addition to it) includes information 1, information 2 and 3, 3, where

The superstitious information measurement results, the information of each signal in the measurement set is obtained, and the superstition information can be an element in the information matrix, a matrix of the superstitious information matrix force, or a channel matrix directly extracted in the sub-band.

Superstitious information maps at least part of the obtained information in a specified sub- and/or directly to the resource sheep allocated by the anti-superstition information. Before mapping the message to the message, you can first superstitiously execute the following gods or multiples.

Send the mapped information to .

In this case, the device is in the long-term (T-) system, but it can also be in the system.

Phase, the process of receiving the reverse letter information, the contents of this, , Hugh 2, including

Step 210, first up (measurement or )

, get the letter of the letter Step 220: The location of the resource sheep carrying the reverse downlink information, the mapping of the resource sheep, the downlink information, and the downlink information step 230, using the obtained uplink information, the resource sheep

The equalization and inverse downlink information equalization receiving measurement algorithm may be an existing measurement algorithm (ZF) measurement algorithm, a domain minimum () measurement algorithm, a minimum deletion (-) measurement algorithm, etc., but is not limited thereto.

Step 240, out of the downlink information

Downstream information of step 250,

Step 260, the downlink information value solution

In step 270, the obtained downlink information is obtained by using a vector matrix, information, and downlink information.

Whether it is, and . At step 240 260 there is a solution and a value solution.

It should be noted that the same can be used for the reverse of the uplink information.

, receiving power each. Therefore, the reverse of the uplink information and the reverse of the upstream and downstream information in the process, and the reverse of the uplink information is determined by the reverse downlink information in the process.

The process is directly reversed, that is, the obtained letter matrix is directly mapped to the uplink allocated resource sheep, or the amplitude and the medium or more

The resource mapped to the upstream allocated resource, directly mapped to the allocated resource sheep due to incompetence, can retain the original characteristics.

Matrix force

Map the 4 numbers [1+2702+4 5+0573+2 ] directly to the resource sheep It can also be mapped to the resource sheep first, amplitude, etc., or its most unique mapping. In the mode, if the factor is not considered, the resource that is occupied by the sheep is the quantity of the direct anti-rabbit. In the good case, it is very small.

Factor, use this can improve the anti-channel.

Directly counter, the counter-information of the downlink information, the anti-occupation of the resources of the sheep's eyesight times, m. The value of m depends on the multiplication, and whether it is (for example, the matrix, the same phase characteristic exists, and the same phase exists on the J/frequency).

The sum and degree can be configured by a high degree, the physical height is higher than the indicated ratio, and the proportion of the resource sheep that is ultimately required is m times the ratio, the ratio is less than or equal to 1, and the multiple is greater than or equal to 1.

The information of this anti-information is the same as the information of the anti-information, and the other information can be referred to.

Since the multi-element elements are non-uniformly distributed in a manner that is sparsely distributed, and the power distribution has many characteristics. So it can also be reversed

The limited teachings of the Taoism reduce the counter. As shown in Figure 4, the main channels of communication are mainly distributed in the largest number of solids.

Receiving the first downlink message, the comparison is greater than the channel obtained by the channel, and the partial channel is directly reversed. The opposite information of the opposite will be reversed.

Receiving according to the previous letter equalization measurement method, the channel is taught and the multiple positions are arranged. There is no reverse position. Go to the road that can be obtained.

To reduce the anti-reverse information Consider the system under different conditions (if you follow, it may be different, you need to reverse the difference), you can fix the teaching information. For example, the channel with limited finite (m) is limited, and the maximum m of the track is reversed.

The information reverse device also includes information, information and . Among them, the information obtained by the information includes the downlink obtained, which may include

The information of the channel is more than the information, and the information of the information is greater than the channel, or the largest m to the road, which may include the reverse information of each channel, or the largest information of the opposite channel, where m force And may be needed.

In addition, the resource sheep allocated by the anti-superstition information

In the uplink, the resource sheep refers to the physical sheep on the uplink physical control or uplink physical sharing, and the uplink physical sharing. In the cyclical reverse and up and teach, you can move up the physical control.

In the downlink, the resource sheep refers to the downlink physical control or the downlink physical sharing of the resource sheep and the downlink physical sharing. In the cyclical reverse and down and teach

, can be down to physical control.

5 is the direct comparison of the flux mode, the same as the case of the same situation. The above representation is the premise of the usage method, and the following indicates the precondition of the direct inverse mode. In the FS aC O " times, the channel forest PA, the receiving speed 60. It can be seen that the existence of the information reverse, the usage of the information in the opposite way

, with the same. Directly reversed

, the same component, or the same is small.

The results show that in the case of the same inverse and anti-solid, the direct inverse performance is greater than the inverse performance. And in the information matrix, according to the transparent rationality, you can step up the teaching. Reliability.

The above is not used to limit the book. In this field, Mudong said that there can be more and more. Any modifications, equivalent substitutions, etc. made within the spirit and principles of this article are included in this warranty.

Usability

The method and device for providing information inversely map the information directly to the resource sheep. Because the resources in the matrix need to be resourced, the original characteristics of the direct and the opposite can be greatly reduced, so that a more pre-vector can be obtained. . The method and device for the reverse of the information of this letter, especially in the case of high ratio and high uplink, can achieve good results.

Claims

Claim

1. The method of information reversal, including

Receiving the root measurement result, obtaining the information of each part in the measurement set, and mapping at least part of the obtained information on the specified sub- and/or directly to the opposite

The mapped information is sent to the resource assigned by the information.

2. The method of claim 1, wherein the method of performing the mapping of at least a portion of the received information to the resource sheep is performed by the method of performing the following or more information.

3. A method of claim 1 or 2, wherein the obtained information is an element in the information matrix, a matrix of the message matrix, or a channel matrix directly extracted from the sub-band.

4. The method of claim 1 or 2, wherein, in the step of mapping at least part of the obtained information on the specified sub- and/or to the resource sheep allocated by the anti-message information, the downlink is obtained of

, the greater than the channel in the receiving channel, or the largest m to the opposite of the channel, where m's.

5. The method of claim 4, wherein the step of receiving the opposite step includes

The recipients of the recent reversal of the information

Or,

Receiving reverses the largest information in the opposite channel.

6. The method of claim 1, wherein

Mediating more or more, receiving users, and fascinating downlink information, including many, users will send each message to each, or

User, receiving, superstitious information uplink Information.

7. The method of claim 1, wherein the method is in the high-long-term T-A system.

8. A device for information reversal, which includes information, information, and

Speech measurement results, get the information in each measurement set

Superstitious information, at least part of the received information is specified

10 Send the mapped message to .

9. The device of claim 8, wherein

Superstitious information Recently, at least part of the obtained superstition information is mapped to the resource sheep, and the superstitious information is executed as follows:

, rationality and .

15 10. A device requiring 8 or 9, wherein

Speech, anti-message, information, superstition, elements in the information matrix. 20

11. A device requiring 8 or 9, wherein

The information obtained by the superstitious message includes the information obtained from the downlink.

Superstitious information is the opposite of the message in the channel, or the largest m to the road, where m 25 .

12. The device of claim 11, wherein

The letter obtained by the words includes the road Multiple information

The message of fascination and anti-information includes nearly the reverse information of each channel, or the largest information of the opposite channel.