CN107370523A - The system of selection of codebook configuration and the electronic equipment for performing this method - Google Patents
The system of selection of codebook configuration and the electronic equipment for performing this method Download PDFInfo
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- CN107370523A CN107370523A CN201610319064.7A CN201610319064A CN107370523A CN 107370523 A CN107370523 A CN 107370523A CN 201610319064 A CN201610319064 A CN 201610319064A CN 107370523 A CN107370523 A CN 107370523A
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- code book
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0675—Space-time coding characterised by the signaling
- H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The present invention proposes system of selection and the electronic equipment of a kind of codebook configuration performed by electronic equipment, wherein the electronic equipment has multiple wave beam grades.Methods described includes：When the wave beam grade that the electronic equipment uses changes into the second wave beam grade from the first wave beam grade in the multiple wave beam grade, candidate beam and female code book of the second wave beam grade are determined in the wave beam that the electronic equipment can use；And according to the testing result to the candidate beam, codebook configuration is selected from female code book of the second wave beam grade, wherein female code book of the second wave beam grade is to zoom in and out acquisition to female code book of the first wave beam grade.
Description
Technical field
The present invention relates to wireless communication system, more particularly to performed in a wireless communication system by electronic equipment
Codebook configuration system of selection and perform this method electronic equipment.
Background technology
In the wireless communication systems such as current LTE (Long Term Evolution (Long Term Evolution)),
Precoding matrix codebook is prestored in wireless base station (BS) and mobile station (UE), and according to shifting
Channel status of dynamic platform etc. is carried out use and wireless base station from selection mobile station in code book is prestored
The code word of communication.In order to quickly and to effectively from prestore in code book select mobile station by it is using,
The code word to be communicated with wireless base station, LTE follow-up LTE-Advanced's (LTE-A) etc.
In the wireless communication system in future, it has been proposed that preliminary screening is first carried out to the code word in code book, and
Mobile station is further selected in the code word gone out from preliminary screening by the method for the code word used.
In addition compatible a variety of application scenarios are considered, can use pre-coding matrix mother code book and
The different codebook configurations of female code book produce different code books to be directed to different application scenarios.Specifically,
Female code book is prestored in wireless base station and mobile station.Wireless base station can pass through code book according to actual conditions
Configure to arrange the code book that wireless base station and mobile station can use during actual data transfer, and should
Codebook configuration can be the subset of female code book.Wireless base station codebook configuration information is sent to mobile station so that
Codebook configuration can be properly generated by obtaining mobile station.
In Rel-13, it is proposed that support the code of 1,2,4,8,12,16 CSI-RS antenna port
This.And in Rel-14, the quantity for the CSI-RS antenna ports supported reaches 20,24,28,32
It is individual, therefore, it is necessary to support the code book of Rel-14 respective antenna port number.In addition, in prior art
Code book in, the code book for different antennae port number is separate, with antenna port quantity
Increase, this can further increase BS and UE Operating Complexity.
The content of the invention
A kind of according to an aspect of the invention, there is provided selection of the codebook configuration performed by electronic equipment
Method, wherein the electronic equipment has multiple wave beam grades, methods described includes：When the electronics is set
The standby wave beam grade used changes into second wave beam etc. from the first wave beam grade in the multiple wave beam grade
During level, candidate beam and second wave beam etc. are determined in the wave beam that the electronic equipment can use
Female code book of level；And according to the testing result to the candidate beam, from the second wave beam grade
Codebook configuration is selected in female code book, wherein female code book of the second wave beam grade is to first wave beam
Female code book of grade zooms in and out acquisition.
According to another aspect of the present invention, there is provided a kind of electronic equipment, the electronic equipment have multiple ripples
Beam grade, the electronic equipment include：Female code book determining unit, it is configured to what is used when the electronic equipment
Wave beam grade from the first wave beam grade in the multiple wave beam grade change into the second wave beam grade when,
Candidate beam and female code of the second wave beam grade are determined in the wave beam that the electronic equipment can use
This；And codebook configuration selecting unit, it is configured to according to the testing result to the candidate beam, from institute
State in female code book of the second wave beam grade and select codebook configuration, wherein female code book of the second wave beam grade
It is that acquisition is zoomed in and out to female code book of the first wave beam grade.
A kind of code is provided according to the system of selection of the codebook configuration of the above-mentioned aspect of the present invention and electronic equipment
This, the code book can not only support Rel-14 antenna port quantity, and possess to antenna port quantity
Backwards compatibility (can smoothly being extended from Rel-13) and forward compatibility (can further expand, be follow-up
Version prepare), and the UE for being operated in different editions can be looked after in communication network.
Brief description of the drawings
According to following description with reference to the accompanying drawings, the above and other aspect of certain embodiments of the present invention, spy
Advantage of seeking peace will be apparent from, in accompanying drawing：
Fig. 1 is the system of selection of the codebook configuration according to an embodiment of the invention performed by electronic equipment
Flow chart；
Fig. 2 is to show according to an embodiment of the invention, when wave beam grade is to correspond respectively to 16,32 days
When the grade 2 and grade 3 of line end mouth, candidate beam is determined in the wave beam that can be used from electronic equipment
Wave beam grid map；
Fig. 3 is to show female code book corresponding with the different brackets of antenna port according to an embodiment of the invention
Diagram；
Fig. 4 is the ripple according to an embodiment of the invention to corresponding respectively to 8,16 and 32 antenna ports
The design of the codebook configuration of beam grade 1, wave beam grade 2 and wave beam grade 3；
Fig. 5 is the block diagram of electronic equipment according to an embodiment of the invention.
Embodiment
Below, embodiments of the present invention are explained with reference to.Description referring to the drawings is provided,
To help to the understanding of the example embodiment of the invention limited by appended claims and their equivalents.Its
Including helping the various details that understand, but they can only be counted as it is exemplary.Therefore, ability
Field technique personnel it will be recognized that can be made various changes and modifications to embodiment described herein, without
Depart from the scope of the present invention and spiritual.Moreover, in order that specification is more clear succinct, will omit to this
The detailed description of field well-known functions and construction.
In order to make it easy to understand, the term referred in the following description is explained.The implementation of the present invention
One or more female code books are all previously stored with the transmitting terminal and receiving terminal of mode, wherein in each female code
This includes multiple code words, and the codebook configuration of each female code book is the subset of female code book.More specifically,
The code word included in each codebook configuration is the son of the code word included in female code book belonging to the codebook configuration
Collection.Female code book can be corresponding with the antenna beam array used in electronic equipment (such as base station).And
The grid map of the wave beam that be able to can be used by representing electronic equipment represents female code book and codebook configuration.
Fig. 1 is the system of selection of the codebook configuration according to an embodiment of the invention performed by electronic equipment
Flow chart.Electronic equipment can have multiple wave beam grades, and different wave beam grades corresponds to different days
Line port number.For example, 8 antenna ports correspond to ripple corresponding to 1,16 antenna ports of wave beam grade
2,32 antenna ports of beam grade correspond to wave beam grade 3.However, the above is only example, this hair
Bright embodiment not limited to this.
When the wave beam grade that electronic equipment uses changes into from the first wave beam grade in multiple wave beam grades
During two wave beam grades, in step S101, candidate beam is determined in the wave beam that electronic equipment can use
And second wave beam grade female code book.According to the example of the present invention, candidate beam rope can be passed through
Attract instruction candidate beam.Determine that female code book is corresponding with identified candidate beam in step S101.Electricity
Sub- equipment can obtain the candidate beam index of identified candidate beam.For example, when electronic equipment is base station
When, base station can generate candidate beam index corresponding with identified candidate beam.In another example work as electronics
When equipment is mobile station, mobile station can receive the control signaling sent from base station and be indexed with obtaining candidate beam.
Fig. 2 is to show according to an embodiment of the invention, when wave beam grade is to correspond respectively to 16,32 days
When the grade 2 and grade 3 of line end mouth, candidate beam is determined in the wave beam that can be used from electronic equipment
Wave beam grid map.In the illustrated example shown in fig. 2, the first wave beam grade corresponds to 16 antenna ports
Wave beam grade 2, the second wave beam grade correspond to the wave beam grade 3 of 32 antenna ports.In Fig. 2
Grid 210 represents the wave beam that electronic equipment can use in wave beam grade 2.Grid 220 in Fig. 2
Represent the wave beam that electronic equipment can use in wave beam grade 3.
To be base station using electronic equipment in the illustrated example shown in fig. 2 to be described, but the present invention is unlimited
In this.As shown in Fig. 2 when the antenna beam of service rating 2 is communicated, base station uses grid 210
Dotted line frame shown in 8 grids representated by antenna beam to mobile station send data.
When the wave beam grade that base station uses changes into wave beam grade 3 from wave beam grade 2, according to step
S101, in base station in the wave beam that wave beam grade 3 can use (that is, the wave beam represented by grid 220
In) determine candidate beam and female code book of the second wave beam grade.
Preferably, according to the example of the present invention, whole ripples corresponding to female code book of each wave beam grade
The area that beam is covered is identical.In a communications system, it is single when antenna number increases used in base station
The area coverage of wave beam diminishes.Therefore, in order that obtaining whole ripples corresponding to female code book of each wave beam grade
The area that beam is covered is identical, has higher wave beam grade (that is, comprising the more wave beam grade of wave beam)
The wave beam ratio that is included of female code book there is relatively low wave beam grade (that is, comprising the less wave beam grade of wave beam)
The wave beam that is included of female code book it is more.
In this example, female code book of grade 2 includes 8 wave beams (for example, the dotted line frame of grid 210
Shown in 8 grids representated by antenna beam), and female code book of grade 3 includes 16 wave beam (examples
Such as, the antenna beam representated by 16 grids shown in the dotted line frame of grid 220), so as to grade 3
Female code book corresponding to whole wave covers area whole wave covers corresponding with female code book of grade 2
Area it is identical.
In addition, the wave beam grade used in base station is after wave beam grade 2 changes into wave beam grade 3, such as
It is upper described, the candidate beam index of identified candidate beam can be obtained.According to the present invention an example,
Candidate beam index can be absolute indices.Alternatively, according to another example of the present invention, candidate
Beam index can also be relative indexing.
Specifically, when changing into the second wave beam grade from the first wave beam grade, candidate beam index can be with
For the absolute indices of candidate beam.Absolute indices can be first wave beam in candidate beam in wave beam grid
Position in trrellis diagram.For example, if including 12 groups of candidate beams in the second wave beam grade, then can use respectively
Index 0,1,2 ... 11 indicates each group candidate beam.
However, when changing into the second wave beam grade from the first wave beam grade, the position of corresponding candidate wave beam
Too big change will not occur.Therefore, alternatively, in order to save signaling consumption, candidate beam index can
With including basis index and index offset.The position of basic wave beam in index the first wave beam grade of instruction of basis
Put, and when changing into the second wave beam grade from the first wave beam grade, basis index does not change generally, because
This need not send basic index.Index offset indicates the skew of the position relative to basic wave beam.This is inclined
Shifting can be unit in the wave beam in the second wave beam grade.Such as the value of index offset can be -2, -1,
0,1 etc..By taking the grid map 220 of Fig. 2 middle grades 3 as an example, when the grid map that candidate beam is grade 3
In 220 during wave beam included by dotted line frame, the position of corresponding candidate wave beam is represented by with the grid of grade 2
Based on position in trrellis diagram 210 indicated by dotted line frame, the wave beam in 1 grade 3 that moved right.
In this case, it is possible to numerical value " 1 " indicates the index offset.
Fig. 2 bends dash area represents the first candidate beam in grade 2, including 8 grids, ripple
Point dash area represents the second candidate beam in grade 2, also including 8 grids, and face in Fig. 2
The most heavy dash area of color is represented between candidate beam determined by described two neighboring candidate beam index
Overlapping wave beam.
As shown in Fig. 2 in grade 2, distance 2 between the original position of two adjacent groups candidate beam
Wave beam in grade 2, equivalent to the wave beam in 4 grades 3.Therefore in grade 3, can use
2 bits represent index offset, such as 00 represent that -2,01 represents that -1,11 represent that 0,10 represent 1.
So as to indicate that candidate beam is relative to the offset distance of the position of the basic wave beam in grade 2 in grade 3.
According to the present invention, female code book of the second wave beam grade is that female code book of the first wave beam grade is contracted
Put acquisition.
According to another example of the present invention, female code book of the second wave beam grade can be to the first wave beam grade
Female code book zoom in and out acquisition in the horizontal and/or vertical.
For example, wrapped in the antenna port number included in the second wave beam grade is than the first wave beam grade
When the antenna port number contained is more, female code book of the second wave beam grade is female code book to the first wave beam grade
Acquisition is extended in the horizontal and/or vertical；When the antenna port included in the second wave beam grade
When number is fewer than the antenna port number included in the first wave beam grade, female code book of the second wave beam grade is
Female code book of first wave beam grade is carried out reducing acquisition in the horizontal and/or vertical.
Fig. 3 is to show female code book corresponding with the different brackets of antenna port according to an embodiment of the invention
Diagram.From figure 3, it can be seen that female code book of wave beam grade 2 is that female code book of wave beam grade 1 is existed
Acquisition is extended in horizontal and/or vertical, female code book of wave beam grade 3 is to wave beam grade 2
Female code book be extended acquisition in the horizontal and/or vertical.On the contrary, female code of wave beam grade 2
Originally it is that female code book of wave beam grade 3 is carried out reducing acquisition, wave beam etc. in the horizontal and/or vertical
Female code book of level 1 is to carry out reduction acquisition in the horizontal and/or vertical to female code book of wave beam grade 2
's.
Specifically, grade 2a female code book is that female code book of In Grade 1 extends 2 times and obtained in the horizontal direction
, grade 2b female code book is that female code book of In Grade 1 extends 2 times of acquisitions in vertical direction.
Grade 3a female code book is that In Grade 2a female code book extends 2 times of acquisitions, grade in the horizontal direction
3b female code book is that In Grade 2a female code book extends the mother of 2 times or In Grade 2b in vertical direction
Code book extend in the horizontal direction 2 times acquisition.On the contrary, grade 2a female code book is In Grade 3a
Female code book that female code book reduces 1/2 or In Grade 3b in the horizontal direction reduces 1/2 in vertical direction
Obtain, grade 2b female code book is that In Grade 3b female code book reduces 1/2 acquisition in the horizontal direction
's.Female code book of grade 1 is that In Grade 2a female code book reduces 1/2 or In Grade in the horizontal direction
2b female code book reduces 1/2 acquisition in vertical direction.
In this case, electronic equipment can also indicate the change of wave beam grade by parameter.For example,
Electronic equipment can determine that rank indicates parameter, and rank instruction parameter indicates the day included in the second wave beam grade
Line port number is more than the antenna port number that is included in the first wave beam grade or few；And determine direction
Parameter is indicated, direction instruction parameter indicates that female code book of the second wave beam grade is the mother to the first wave beam grade
Code book is also vertically oriented is scaled in the horizontal direction.
Table 1 below illustrates rank instruction parameter and the embodiment of direction instruction parameter.However, this is only
Only it is example, embodiments of the invention not limited to this.Rank instruction parameter is advantageously implemented high-level BS
With low level BS (UE) compatibility, it is advantageously implemented smooth rank and changes.Direction instruction parameter will
Antenna extends and code book extension combines, and keeps expense relatively low.
Table 1
For example, when wave beam grade changes into grade 3a from the grade 2a in Fig. 3, electronic equipment
Rank can be indicated that parameter is defined as 1, direction instruction parameter is defined as 0.
Referring back to Fig. 1, in step s 102, electronic equipment is according to the detection knot to the candidate beam
Fruit, codebook configuration is selected from female code book of the second wave beam grade.
Female code book of first wave beam grade can be with the codebook configuration that is included in female code book of the second wave beam grade
In specific codebook configuration it is identical.Electronic equipment selects the spy before Fig. 2 step S102 is performed
Codebook configuration is determined as the initial codebook configuration after changing into the second wave beam grade, and the determined by loading
Female code book of two wave beam grades, and step S202 is included to the testing result of candidate beam, from the of loading
Codebook configuration is selected in female code book of two wave beam grades, to replace the initial codebook configuration.
When the antenna port number included in the second wave beam grade is more than the antenna end included in the first wave beam grade
During mouth number, at least a portion of each codebook configuration included in female code book of the second wave beam grade is to institute
State the codebook configuration that female code book of the first wave beam grade includes and carry out extension in horizontal and/or vertical
Obtain.
Fig. 4 is the ripple according to an embodiment of the invention to corresponding respectively to 8,16 and 32 antenna ports
The design of the codebook configuration of beam grade 1, wave beam grade 2 and wave beam grade 3.Figure 4, it is seen that
Codebook configuration 2 that female code book of grade 1 includes with grade 2a female code book, grade 2b female code book include
Codebook configuration 4 it is identical；Codebook configuration 2 that female code book of grade 2 and grade 3a female code book include,
The codebook configuration 4 that grade 3b female code book includes is identical.For example, the wave beam grade used when electronic equipment
When changing into grade 3a from grade 2a, electronic equipment selection codebook configuration 2 is as after changing into grade 3a
Initial codebook configuration, and load determined by grade 3a female code book, according to the candidate beam
Testing result, codebook configuration is selected from female code book of loading, to replace codebook configuration 2.In another example
When the wave beam grade that electronic equipment uses changes into grade 3b from grade 2a, electronic equipment selection code book
Configuration 4 is as the initial codebook configuration after changing into grade 3b, and the mother of grade 3b determined by loading
Code book, according to the testing result to the candidate beam, codebook configuration is selected from female code book of loading,
To replace codebook configuration 4.By that analogy.
From fig. 4, it can be seen that in terms of codebook configuration, each code for being included in female code book of grade 2a, 2b
At least a portion of this configuration is that the codebook configuration carry out included in female code book of In Grade 1 is horizontal and/or vertical
The upward extension of Nogata obtains.At least the one of each codebook configuration included in female code book of grade 3a, 3b
Part is the codebook configuration progress level and/or Vertical Square included in female code book of In Grade 2a, 2b respectively
What upward extension obtained.
A kind of code book is provided according to the system of selection of the codebook configuration of the present invention, the code book can not only be supported
Rel-14 antenna port quantity, and possess (can be from Rel-13 to the backwards compatibility of antenna port quantity
Smooth extension) and forward compatibility (can further expand, be that follow-up version is prepared), and can be with
Look after in communication network and be operated in the UE of different editions.
Fig. 5 is the block diagram of electronic equipment according to an embodiment of the invention, and the electronic equipment has multiple ripples
Beam grade.Reference picture 5, electronic equipment includes：Female code book determining unit, it is configured to when the electronics is set
The standby wave beam grade used from the first wave beam grade of multiple wave beam grades change into the second wave beam grade when,
Candidate beam and female code book of the second wave beam grade are determined in the wave beam that electronic equipment can use；With
And codebook configuration selecting unit, it is configured to according to the testing result to the candidate beam, from the second wave beam
Codebook configuration is selected in female code book of grade.
For example, electronic equipment according to an embodiment of the invention can be base station.When the wave beam that base station uses
Grade from the first wave beam grade change into the second wave beam grade when, female code book determining unit in base station is in base
Stand and candidate beam is selected in the wave beam that can be used, and determine the female code book and candidate's ripple of the second wave beam grade
Beam is corresponding；Testing result of the codebook configuration selecting unit according to UE to candidate beam in base station, from
Codebook configuration is selected in female code book of two wave beam grades.
In another example electronic equipment according to an embodiment of the invention can be UE.When wave beam grade is from
When one wave beam grade changes into the second wave beam grade, UE female code book determining unit according to the notice of base station come
Determine candidate beam and female code book of the second wave beam grade；UE codebook configuration selecting unit is according to waiting
The testing result of wave beam is selected, codebook configuration is selected from female code book of the second wave beam grade to feed back to base station.
According to the example of the present invention, candidate beam can be indicated by candidate beam index.Electronics
Equipment can also include index obtaining unit, be configured to candidate's ripple of candidate beam determined by being indicated
Beam indexes.For example, when electronic equipment is base station, index obtaining unit can generate and identified candidate
Candidate beam corresponding to wave beam indexes.In another example when electronic equipment is mobile station, mobile station can receive
The control signaling sent from base station is indexed with obtaining candidate beam.
According to the example of the present invention, candidate beam index can be absolute indices.Alternatively, root
According to another example of the present invention, candidate beam index can also be relative indexing.
Specifically, when changing into the second wave beam grade from the first wave beam grade, candidate beam index can be with
For the absolute indices of candidate beam.Absolute indices can be first wave beam in candidate beam in wave beam grid
Position in trrellis diagram.
However, when changing into the second wave beam grade from the first wave beam grade, the position of corresponding candidate wave beam
Too big change will not occur.Therefore, alternatively, in order to save signaling consumption, candidate beam index can
With including basis index and index offset.The position of basic wave beam in index the first wave beam grade of instruction of basis
Put, and when changing into the second wave beam grade from the first wave beam grade, basis index does not change generally, because
This need not send basic index.Index offset indicates the skew of the position relative to basic wave beam.This is inclined
Shifting can be unit in the wave beam in the second wave beam grade.Such as the value of index offset can be -2, -1,
0,1 etc..
According to the present invention, female code book of the second wave beam grade is that female code book of the first wave beam grade is contracted
Put acquisition.
According to another example of the present invention, female code book of the second wave beam grade can be to the first wave beam grade
Female code book zoom in and out acquisition in the horizontal and/or vertical.
For example, wrapped in the antenna port number included in the second wave beam grade is than the first wave beam grade
When the antenna port number contained is more, female code book of the second wave beam grade is female code book to the first wave beam grade
Acquisition is extended in the horizontal and/or vertical；When the antenna port included in the second wave beam grade
When number is fewer than the antenna port number included in the first wave beam grade, female code book of the second wave beam grade is
Female code book of first wave beam grade is carried out reducing acquisition in the horizontal and/or vertical.
In this case, electronic equipment can also indicate the change of wave beam grade by parameter.For example,
Electronic equipment can also include level deciding unit, be configured to determine rank instruction parameter, rank instruction ginseng
The antenna port numbers that include are than the antenna end that is included in the first wave beam grade in number the second wave beam grade of instruction
Mouth number is more or few；And direction-determining unit, it is configured to determine direction instruction parameter, direction instruction
Parameter indicate female code book of the second wave beam grade be to female code book of the first wave beam grade in the horizontal direction or
Zoomed in and out in vertical direction.Table 1 above shows the reality of rank instruction parameter and direction instruction parameter
Apply example.However, this is only example, embodiments of the invention not limited to this.
According to another example of the present invention, female code book of the first wave beam grade can be with the second wave beam grade
Specific codebook configuration in the codebook configuration included in female code book is identical.
For example, electronic equipment can also include：Initial codebook obtaining unit, it is configured to described according to right
The testing result of candidate beam, before female codebook selecting codebook configuration of the second wave beam grade, select institute
Specific codebook configuration is stated as the initial codebook configuration after changing into the second wave beam grade.Electronic equipment may be used also
Including loading unit, to be configured to female code book of the second wave beam grade determined by loading, wherein code book is matched somebody with somebody
Unit is put according to the testing result to candidate beam, is selected from female code book of the second wave beam grade of loading
Codebook configuration, to replace the initial codebook configuration.
A kind of code book is provided according to the electronic equipment of the present invention, the code book can not only support Rel-14 day
Line port number, and possess the backwards compatibility (can smoothly being extended from Rel-13) to antenna port quantity
It (can be further expanded, prepared for follow-up version) with forward compatibility, and communication can be looked after
The UE of different editions is operated in network.
Those of ordinary skill in the art are it is to be appreciated that be incorporated in each of embodiments of the present invention description
Unit and step, it can be realized with electronic hardware, computer software or the combination of the two.It is and soft
Part module can be placed in any form of computer-readable storage medium.For example, can by processor (such as
CPU female code book determining unit, the codebook configuration determining unit institute that Fig. 5 electronic equipment includes are performed)
The function of realization.
In order to clearly demonstrate the interchangeability of hardware and software, in the above description according to function one
As property describe the composition and step of each example.These functions are held with hardware or software mode actually
OK, the application-specific and design constraint depending on technical scheme.Those skilled in the art can be to every
Described function is realized in individual specific application using distinct methods, but it is this realize it is not considered that
It is beyond the scope of this invention.
Although exemplifying and describing the present invention with reference to various implementations, those skilled in the art will manage
Solution, in the case where not departing from the spirit and scope of the present invention limited such as appended claims and their equivalents,
Can be to the various changes in this progress form and details.
Claims (16)
- A kind of 1. system of selection of the codebook configuration performed by electronic equipment, wherein the electronic equipment has Multiple wave beam grades, methods described include：When the wave beam grade that the electronic equipment uses is from the first wave beam grade in the multiple wave beam grade When changing into the second wave beam grade, in the wave beam that the electronic equipment can use determine candidate beam with And female code book of the second wave beam grade；AndAccording to the testing result to the candidate beam, selected from female code book of the second wave beam grade Codebook configuration, whereinFemale code book of the second wave beam grade is that female code book of the first wave beam grade is zoomed in and out to obtain .
- 2. the method as described in claim 1, in addition to：The candidate beam index of candidate beam determined by being indicated, whereinThe candidate beam index includes basis index and index offset,The basis index indicates the position of the basic wave beam in the first wave beam grade,The index offset indicates the skew of the position relative to the basic wave beam.
- 3. the method as described in claim 1, whereinFemale code book of the second wave beam grade be to female code book of the first wave beam grade it is horizontal and/ Or acquisition is zoomed in and out in vertical direction.
- 4. method as claimed in claim 3, whereinIncluded in the antenna port number included in the second wave beam grade is than the first wave beam grade Antenna port number it is more when, female code book of the second wave beam grade is to the first wave beam grade Female code book is extended acquisition in the horizontal and/or vertical；Included in the antenna port number included in the second wave beam grade is than the first wave beam grade Antenna port number it is few when, female code book of the second wave beam grade is to the first wave beam grade Female code book carries out reducing acquisition in the horizontal and/or vertical.
- 5. method as claimed in claim 4, in addition to：Determine that rank indicates parameter, the rank instruction parameter indicates what is included in the second wave beam grade Antenna port number is more than the antenna port number that is included in the first wave beam grade or few；AndDetermine that direction indicates parameter, the direction instruction parameter indicates female code book of the second wave beam grade It is that female code book of the first wave beam grade is also vertically oriented in the horizontal direction to scale.
- 6. the method as described in claim 1, whereinThe area that whole wave beams corresponding to female code book of the first wave beam grade are covered and second ripple The area that whole wave beams corresponding to female code book of beam grade are covered is identical.
- 7. the method as described in claim 1, whereinSpecific codebook configuration in the codebook configuration that female code book of the second wave beam grade includes and described the Female code book of one wave beam grade is identical.
- 8. the method as described in power requires 7, whereinTesting result in the basis to the candidate beam, from female code book of the second wave beam grade Before middle selection codebook configuration, methods described also includes：The specific codebook configuration is selected to match somebody with somebody as the initial codebook after changing into the second wave beam grade Put, andFemale code book of second wave beam grade determined by loading,The basis is to the testing result of the candidate beam, from female code book of the second wave beam grade Selection codebook configuration includes：According to the testing result to the candidate beam, from female code book of the second wave beam grade of loading Middle selection codebook configuration, to replace the initial codebook configuration.
- 9. the method as described in power requires 1, whereinThe antenna port number included in the second wave beam grade is more than what is included in the first wave beam grade Antenna port number；At least a portion of each codebook configuration included in female code book of the second wave beam grade is to institute State the expansion in the codebook configuration progress horizontal and/or vertical included in female code book of the first wave beam grade What exhibition obtained.
- 10. a kind of electronic equipment, the electronic equipment has multiple wave beam grades, and the electronic equipment includes：Female code book determining unit, the wave beam grade that uses when the electronic equipment is configured to from the multiple ripple When the first wave beam grade in beam grade changes into the second wave beam grade, it can be used in the electronic equipment Wave beam in determine female code book of candidate beam and the second wave beam grade；AndCodebook configuration selecting unit, it is configured to according to the testing result of the candidate beam, from described the Codebook configuration is selected in female code book of two wave beam grades, whereinFemale code book of the second wave beam grade is that female code book of the first wave beam grade is zoomed in and out to obtain .
- 11. electronic equipment as claimed in claim 10, in addition to：Obtaining unit is indexed, is configured to the candidate beam index of candidate beam determined by being indicated, its InThe candidate beam index includes basis index and index offset,The basis index indicates the position of the basic wave beam in the first wave beam grade,The index offset indicates the skew of the position relative to the basic wave beam.
- 12. electronic equipment as claimed in claim 10, whereinFemale code book of the second wave beam grade be to female code book of the first wave beam grade it is horizontal and/ Or acquisition is zoomed in and out in vertical direction.
- 13. electronic equipment as claimed in claim 12, whereinIncluded in the antenna port number included in the second wave beam grade is than the first wave beam grade Antenna port number it is more when, female code book of the second wave beam grade is to the first wave beam grade Female code book is extended acquisition in the horizontal and/or vertical；Included in the antenna port number included in the second wave beam grade is than the first wave beam grade Antenna port number it is few when, female code book of the second wave beam grade is to the first wave beam grade Female code book carries out reducing acquisition in the horizontal and/or vertical.
- 14. electronic equipment as claimed in claim 13, in addition to：Level deciding unit, it is configured to determine rank instruction parameter, the rank is indicated described in parameter instruction The antenna port number included in second wave beam grade is than the antenna port that is included in the first wave beam grade Number is more or few；AndDirection-determining unit, it is configured to determine direction instruction parameter, the direction is indicated described in parameter instruction Female code book of second wave beam grade be to female code book of the first wave beam grade in the horizontal direction or vertically Zoomed in and out on direction.
- 15. electronic equipment as claimed in claim 10, whereinSpecific codebook configuration in the codebook configuration that female code book of the second wave beam grade includes and described the Female code book of one wave beam grade is identical.
- 16. electronic equipment as claimed in claim 15, in addition to：Initial codebook obtaining unit, the testing result to the candidate beam in the basis is configured to, from Before selecting codebook configuration in female code book of the second wave beam grade, the specific codebook configuration is selected to make To change into the initial codebook configuration after the second wave beam grade, andLoading unit, female code book of the second wave beam grade determined by loading is configured to, whereinThe codebook configuration determining unit is according to the testing result to the candidate beam, from the second wave beam of loading Codebook configuration is selected in female code book of grade, to replace the initial codebook configuration.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319064.7A CN107370523A (en) | 2016-05-12 | 2016-05-12 | The system of selection of codebook configuration and the electronic equipment for performing this method |
| PCT/CN2017/084101 WO2017193991A1 (en) | 2016-05-12 | 2017-05-12 | Codebook configuration selection method and electronic device executing same |
| JP2018559299A JP6679756B2 (en) | 2016-05-12 | 2017-05-12 | Codebook setting selection method and electronic device implementing the method |
| CN201780027106.2A CN109478911B (en) | 2016-05-12 | 2017-05-12 | Method for selecting codebook configuration and electronic device for executing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319064.7A CN107370523A (en) | 2016-05-12 | 2016-05-12 | The system of selection of codebook configuration and the electronic equipment for performing this method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107370523A true CN107370523A (en) | 2017-11-21 |
Family
ID=60266341
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610319064.7A Pending CN107370523A (en) | 2016-05-12 | 2016-05-12 | The system of selection of codebook configuration and the electronic equipment for performing this method |
| CN201780027106.2A Expired - Fee Related CN109478911B (en) | 2016-05-12 | 2017-05-12 | Method for selecting codebook configuration and electronic device for executing method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780027106.2A Expired - Fee Related CN109478911B (en) | 2016-05-12 | 2017-05-12 | Method for selecting codebook configuration and electronic device for executing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6679756B2 (en) |
| CN (2) | CN107370523A (en) |
| WO (1) | WO2017193991A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082838A (en) * | 2018-10-18 | 2020-04-28 | 慧与发展有限责任合伙企业 | Automatic selection of codebooks |
| CN111344957A (en) * | 2017-12-15 | 2020-06-26 | 联想（新加坡）私人有限公司 | Coding main beam information in CSI codebook |
| CN114145034A (en) * | 2019-08-06 | 2022-03-04 | 高通股份有限公司 | Updating MMW codebook for smartphone coverage change |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117938225A (en) * | 2022-10-24 | 2024-04-26 | 华为技术有限公司 | Beam coverage method, device and equipment |
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| US8542763B2 (en) * | 2004-04-02 | 2013-09-24 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
| US20080094281A1 (en) * | 2006-10-24 | 2008-04-24 | Nokia Corporation | Advanced codebook for multi-antenna transmission systems |
| CN102082635B (en) * | 2010-03-30 | 2013-04-10 | 电信科学技术研究院 | Codebook storage and information transceiving method and device using codebook |
| CN102742204B (en) * | 2010-04-07 | 2016-01-20 | 上海贝尔股份有限公司 | Channel state information feedback method and system |
| CN102938662B (en) * | 2011-08-15 | 2015-09-16 | 上海贝尔股份有限公司 | For the codebook design method of 3D antenna configuration |
| CN102938688B (en) * | 2011-08-15 | 2015-05-27 | 上海贝尔股份有限公司 | Method and device for channel measurement and feedback of multi-dimensional antenna array |
| CN108736942A (en) * | 2012-04-24 | 2018-11-02 | 株式会社Ntt都科摩 | Method for generating codebooks |
| CN103684657A (en) * | 2012-09-03 | 2014-03-26 | 夏普株式会社 | Methods for constructing precoding matrix array and feeding back index value and related communication equipment |
| CN103780291B (en) * | 2012-10-25 | 2017-04-19 | 华为技术有限公司 | Method, device and base station by using three-dimensional beam codebooks to perform communication |
| US9136995B2 (en) * | 2013-06-03 | 2015-09-15 | Nokia Solutions And Networks Oy | Codebook partitioning for enabling elevation-eICIC |
| CN104348575A (en) * | 2013-07-26 | 2015-02-11 | 中兴通讯股份有限公司 | Pre-coding matrix feedback method and terminal |
| EP3054612A4 (en) * | 2013-09-30 | 2017-08-09 | Fujitsu Limited | Information feedback method, codebook determination method, user equipment and base station |
| CN104811231B (en) * | 2014-01-26 | 2018-06-05 | 电信科学技术研究院 | A kind of channel state information transmission method and device for supporting FD-MIMO |
-
2016
- 2016-05-12 CN CN201610319064.7A patent/CN107370523A/en active Pending
-
2017
- 2017-05-12 CN CN201780027106.2A patent/CN109478911B/en not_active Expired - Fee Related
- 2017-05-12 JP JP2018559299A patent/JP6679756B2/en active Active
- 2017-05-12 WO PCT/CN2017/084101 patent/WO2017193991A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111344957A (en) * | 2017-12-15 | 2020-06-26 | 联想（新加坡）私人有限公司 | Coding main beam information in CSI codebook |
| CN111344957B (en) * | 2017-12-15 | 2024-01-05 | 联想（新加坡）私人有限公司 | Coding main beam information in CSI codebook |
| CN111082838A (en) * | 2018-10-18 | 2020-04-28 | 慧与发展有限责任合伙企业 | Automatic selection of codebooks |
| US11128357B2 (en) | 2018-10-18 | 2021-09-21 | Hewlett Packard Enterprise Development Lp | Automatically select codebook |
| CN111082838B (en) * | 2018-10-18 | 2022-04-05 | 慧与发展有限责任合伙企业 | Automatic selection of codebooks |
| CN114145034A (en) * | 2019-08-06 | 2022-03-04 | 高通股份有限公司 | Updating MMW codebook for smartphone coverage change |
| CN114145034B (en) * | 2019-08-06 | 2024-05-24 | 高通股份有限公司 | Updating MMW codebooks for smart phone overlay changes |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017193991A1 (en) | 2017-11-16 |
| JP6679756B2 (en) | 2020-04-15 |
| JP2019521559A (en) | 2019-07-25 |
| CN109478911B (en) | 2021-09-07 |
| CN109478911A (en) | 2019-03-15 |
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