CN109478911A - The selection method of codebook configuration and the electronic equipment for executing this method - Google Patents
The selection method of codebook configuration and the electronic equipment for executing this method Download PDFInfo
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- CN109478911A CN109478911A CN201780027106.2A CN201780027106A CN109478911A CN 109478911 A CN109478911 A CN 109478911A CN 201780027106 A CN201780027106 A CN 201780027106A CN 109478911 A CN109478911 A CN 109478911A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010187 selection method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 230000009467 reduction Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
-
- 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
- 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 invention proposes the selection methods and electronic equipment of a kind of codebook configuration executed by electronic equipment, wherein the electronic equipment has multiple wave beam grades.The described method includes: determining female code book of candidate beam and the second wave beam grade in the wave beam that the electronic equipment is able to use 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；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
The present invention relates to wireless communication systems, more particularly in a wireless communication system by the selection method of the codebook configuration of electronic equipment execution and the electronic equipment of execution this method.
In the wireless communication systems such as current LTE (long term evolution (Long Term Evolution)), it is stored in advance precoding matrix codebook in wireless base station (BS) and mobile station (UE), and selects mobile station by code word using, communicating with wireless base station from being stored in advance in code book according to channel status of mobile station etc..In order to quickly and to effectively select mobile station by code word using, communicating with wireless base station from being stored in advance in code book, in the wireless communication system in the future of the subsequent LTE-Advanced (LTE-A) of LTE etc., it has been proposed first carrying out preliminary screening to the code word in code book, and further selects mobile station by the method for the code word used from the code word that preliminary screening goes out.
Furthermore in view of compatible a variety of different application scenarios, the different codebook configurations that pre-coding matrix mother code book and female code book can be used generate different code books to be directed to different application scenarios.Specifically, female code book is stored in advance in wireless base station and mobile station.Wireless base station can arrange the code book that wireless base station and mobile station can be used during actual data transfer by codebook configuration according to the actual situation, and the codebook configuration can be the subset of female code book.Codebook configuration information is sent to mobile station so that mobile station can be properly generated codebook configuration by wireless base station.
In Rel-13, the code book of 1,2,4,8,12,16 CSI-RS antenna port of support is proposed.And in Rel-14, the quantity for the CSI-RS antenna port supported reaches 20,24,28,32, and therefore, it is necessary to support the code book of the respective antenna port number of Rel-14.In addition, being independent from each other in the code book of the prior art for the code book of different antennae port number, with the increase of antenna port quantity, this can further increase the Operating Complexity of BS and UE.
Summary of the invention
According to an aspect of the present invention, provide a kind of selection method of codebook configuration executed by electronic equipment, wherein the electronic equipment has multiple wave beam grades, which comprises when the wave beam grade that the electronic equipment uses changes into the second wave beam from the first wave beam grade in the multiple wave beam grade
When grade, female code book of candidate beam and the second wave beam grade is determined in the wave beam that the electronic equipment is able to 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.
According to another aspect of the present invention, provide a kind of electronic equipment, the electronic equipment has multiple wave beam grades, the electronic equipment includes: female code book determination unit, it is configured to 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, female code book of candidate beam and the second wave beam grade is determined in the wave beam that the electronic equipment is able to use；And codebook configuration selecting unit, it is configured to 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.
The selection method of the codebook configuration of above-mentioned aspect and electronic equipment provide a kind of code book according to the present invention, the code book can not only support the antenna port quantity of Rel-14, and has the backwards compatibility (can smoothly extend from Rel-13) and forward compatibility of antenna port quantity (can be further expanded, prepare for subsequent version), and the UE to be worked in communication network in different editions can be looked after.
According to following description with reference to the accompanying drawings, above and other aspects, the feature and advantage of certain embodiments of the present invention be will be apparent from, in attached drawing:
Fig. 1 is the flow chart of the selection method for the codebook configuration of embodiment according to the present invention executed by electronic equipment；
Fig. 2 is shown according to an embodiment of the invention, when wave beam grade is to correspond respectively to the grade 2 and grade 3 of 16,32 antenna ports, and the wave beam grid map of candidate beam is determined from the wave beam that electronic equipment is able to use；
Fig. 3 is the diagram for showing female code book corresponding with the different brackets of antenna port of embodiment according to the present invention；
Fig. 4 is the design to the codebook configuration for corresponding respectively to the wave beam grades 1 of 8,16 and 32 antenna ports, wave beam grade 2 and wave beam grade 3 of embodiment according to the present invention；
Fig. 5 is the block diagram of the electronic equipment of embodiment according to the present invention.
In the following, being explained with reference to embodiments of the present invention.Description referring to the drawings is provided, to help the understanding to example embodiment of the invention as defined by appended claims and their equivalents.It includes the various details for helping to understand, but they can only be counted as illustratively.Therefore, it would be recognized by those skilled in the art that can be made various changes and modifications to embodiment described herein, without departing from scope and spirit of the present invention.Moreover, in order to keep specification more clear succinct, by omission pair it is well known that the detailed description of function and construction.
In order to make it easy to understand, being explained to the term referred in the following description.One or more female code books are all previously stored in the transmitting terminal of embodiments of the present invention and receiving end, wherein including multiple code words in each female code book, the codebook configuration of each mother's code book is the subset of mother's code book.More specifically, the code word for including in each codebook configuration is the subset for the code word for including in female code book belonging to the codebook configuration.Female code book can be corresponding with antenna beam array used in electronic equipment (such as base station).And female code book and codebook configuration can be indicated by representing the grid map for the wave beam that electronic equipment is able to use.
Fig. 1 is the flow chart of the selection method for the codebook configuration of embodiment according to the present invention executed by electronic equipment.Electronic equipment can have multiple wave beam grades, and different wave beam grades corresponds to different antenna port numbers.For example, 8 antenna ports, which correspond to 1,16 antenna ports of wave beam grade, corresponds to 2,32 antenna ports of wave beam grade corresponding to wave beam grade 3.However, being only above example, embodiments of the present invention are not limited thereto.
When the wave beam grade that electronic equipment uses changes into the second wave beam grade from the first wave beam grade in multiple wave beam grades, in step s101, female code book of candidate beam and the second wave beam grade is determined in the wave beam that electronic equipment is able to use.An example according to the present invention can indicate candidate beam by candidate beam index.Determine that female code book is corresponding with identified candidate beam in step s101.Electronic equipment can get the candidate beam index of identified candidate beam.For example, base station produces candidate beam index corresponding with identified candidate beam when electronic equipment is base station.In another example mobile station can receive the control signaling sent from base station to obtain candidate beam index when electronic equipment is mobile station.
Fig. 2 is shown according to an embodiment of the invention, when wave beam grade is to correspond respectively to the grade 2 and grade 3 of 16,32 antenna ports, and the wave beam grid map of candidate beam is determined from the wave beam that electronic equipment is able to use.In the illustrated example shown in fig. 2, the first wave beam grade corresponds to the wave beam grade 2 of 16 antenna ports, and the second wave beam grade corresponds to the wave beam grade 3 of 32 antenna ports.Fig. 2
In grid 210 indicate the wave beam that is able to use in wave beam grade 2 of electronic equipment.Grid 220 in Fig. 2 indicates the wave beam that electronic equipment is able to use in wave beam grade 3.
It will be base station with electronic equipment in the illustrated example shown in fig. 2 to be described, but the invention is not restricted to this.As shown in Fig. 2, antenna beam representated by 8 grids shown in dotted line frame of the base station using grid 210 sends data to mobile station when the antenna beam of service rating 2 is communicated.
When the wave beam grade that base station uses changes into wave beam grade 3 from wave beam grade 2, according to step S101, female code book of candidate beam and the second wave beam grade is determined in the wave beam that wave beam grade 3 is able to use (that is, in wave beam represented by grid 220) in base station.
Preferably, an example according to the present invention, the area that the corresponding whole wave beams of female code book of each wave beam grade are covered are identical.In a communications system, when the antenna number used in the base station increases, the area coverage of single wave beam becomes smaller.Therefore, in order to enable the area that the corresponding whole wave beams of female code book of each wave beam grade are covered is identical, (i.e. with higher wave beam grade, include the more wave beam grade of wave beam) female code book wave beam ratio for being included have female code book wave beam for being included of lower wave beam grade (that is, wave beam grade less comprising wave beam) more.
In this example, female code book of grade 2 include 8 wave beams (such as, antenna beam representated by 8 grids shown in the dotted line frame of grid 210), and female code book of grade 3 include 16 wave beams (such as, antenna beam representated by 16 grids shown in the dotted line frame of grid 220), so that the area of the corresponding whole wave covers of female code book of grade 3 whole areas of wave cover corresponding with female code book of grade 2 are identical.
In addition, after the wave beam grade that base station uses changes into wave beam grade 3 from wave beam grade 2, as described above, the candidate beam index of candidate beam determined by can get.An example according to the present invention, candidate beam index can be absolute indices.Alternatively, another example according to the present invention, candidate beam index are also possible to relative indexing.
Specifically, when changing into the second wave beam grade from the first wave beam grade, candidate beam index can be the absolute indices of candidate beam.Absolute indices can be position of first wave beam in wave beam grid map in candidate beam.For example, if include 12 groups of candidate beams in the second wave beam grade, then can distinguish index of reference 0,1,2 ... 11 indicates each group candidate beam.
However, too big variation will not occur for the position of corresponding candidate wave beam when changing into the second wave beam grade from the first wave beam grade.Therefore, alternatively, in order to save signaling overheads, candidate beam index may include basis index and index offset.The position of basic wave beam in index the first wave beam grade of instruction of basis
It sets, and when changing into the second wave beam grade from the first wave beam grade, basis index does not change usually, therefore no need to send bases to index.Index offset indicates the offset of the position relative to basic wave beam.The offset 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 grade 3 as an example, when wave beam included by dotted line frame in the grid map 220 that candidate beam is grade 3, wave beam based on the position of corresponding candidate wave beam is represented by the position indicated by the dotted line frame in the grid map 210 of grade 2, in 1 grade 3 that moved right.In this case, it is possible to which numerical value " 1 " indicates the index offset.
Fig. 2 bend dash area indicates the first candidate beam in grade 2, including 8 grids, wave point dash area indicates the second candidate beam in grade 2, it also include 8 grids, and the most heavy dash area of color indicates the overlapping wave beam between candidate beam determined by described two neighboring candidate beam index in Fig. 2.
As shown in Fig. 2, in grade 2, wave beam between the initial position of two adjacent groups candidate beam in 2 grades 2 of distance, the wave beam being equivalent in 4 grades 3.Therefore in grade 3,2 bits can be used to indicate index offset, such as 00 indicates that -2,01 indicates that -1,11 indicate that 0,10 indicate 1.To indicate offset distance of the candidate beam relative to 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 to zoom in and out acquisition to female code book of the first wave beam grade.
Another example according to the present invention, female code book of the second wave beam grade can be zooms in and out acquisition to female code book of the first wave beam grade in the horizontal and/or vertical.
Such as, when the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than when, female code book of the second wave beam grade is to be extended acquisition in the horizontal and/or vertical to female code book of the first wave beam grade；When the antenna port number for including in the second wave beam grade is fewer than the antenna port number for including in the first wave beam grade, female code book of the second wave beam grade is to carry out reduction acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
Fig. 3 is the diagram for showing female code book corresponding with the different brackets of antenna port of embodiment according to the present invention.As can be seen from Figure 3, female code book of wave beam grade 2 is to be extended acquisition in the horizontal and/or vertical to female code book of wave beam grade 1, and female code book of wave beam grade 3 is to be extended acquisition in the horizontal and/or vertical to female code book of wave beam grade 2.On the contrary, female code book of wave beam grade 2 is to carry out reduction acquisition in the horizontal and/or vertical to female code book of wave beam grade 3, female code book of wave beam grade 1 is to carry out reduction in the horizontal and/or vertical to female code book of wave beam grade 2 to obtain
.
Specifically, female code book of grade 2a is that female code book of In Grade 1 extends 2 times of acquisitions in the horizontal direction, and female code book of grade 2b is that female code book of In Grade 1 extends 2 times of acquisitions in vertical direction.Female code book of grade 3a is that female code book of In Grade 2a extends 2 times of acquisitions in the horizontal direction, and female code book of grade 3b is that female code book of In Grade 2a extends 2 times or In Grade 2b of female code book in vertical direction and extends 2 times of acquisitions in the horizontal direction.On the contrary, female code book that female code book that female code book of grade 2a is In Grade 3a reduces 1/2 or In Grade 3b in the horizontal direction reduces 1/2 acquisition in vertical direction, female code book of grade 2b is that female code book of In Grade 3b reduces 1/2 acquisition in the horizontal direction.Female code book of grade 1 is that female code book of In Grade 2a reduces female code book of 1/2 or In Grade 2b in the horizontal direction and reduces 1/2 acquisition in vertical direction.
In this case, electronic equipment can also indicate the variation of wave beam grade by parameter.For example, electronic equipment can determine rank indicate parameter, rank instruction parameter indicate the second wave beam grade in include antenna port number than include in the first wave beam grade antenna port number more than or it is few；And determining direction instruction parameter, direction instruction parameter indicates that female code book of the second wave beam grade is also to be vertically oriented to scale in the horizontal direction to female code book of the first wave beam grade.
Table 1 below illustrates the embodiments of rank instruction parameter and direction instruction parameter.However, this is only example, embodiments of the present invention are not limited thereto.Rank instruction parameter is advantageously implemented the compatibility of high-level BS and low level BS (UE), is advantageously implemented smooth rank and changes.Direction instruction parameter combines antenna extension and code book extension, and keeps expense lower.
Table 1
For example, when wave beam grade changes into grade 3a from the grade 2a in Fig. 3, rank can be indicated that parameter is determined as 1 by electronic equipment, and direction instruction parameter is determined as 0.
Referring back to Fig. 1, in step s 102, electronic equipment selects codebook configuration from female code book of the second wave beam grade according to the testing result to the candidate beam.
Female code book of first wave beam grade can be identical as the specific codebook configuration in the codebook configuration for including in female code book of the second wave beam grade.Electronic equipment is before the step S102 for executing Fig. 2, select the specific codebook configuration as the initial codebook configuration after changing into the second wave beam grade, and female code book of the second wave beam grade determined by loading, and step S202 includes the testing result to candidate beam, codebook configuration is selected from female code book of the second wave beam grade of load, to replace the initial codebook configuration.
When the antenna port number for including in the second wave beam grade is more than the antenna port number for including in the first wave beam grade, at least part for each codebook configuration for including in female code book of the second wave beam grade is that the extension that the codebook configuration for including carries out in horizontal and/or vertical is obtained to female code book of the first wave beam grade.
Fig. 4 is the design to the codebook configuration for corresponding respectively to the wave beam grades 1 of 8,16 and 32 antenna ports, wave beam grade 2 and wave beam grade 3 of embodiment according to the present invention.Figure 4, it is seen that female code book of grade 1 is identical as the codebook configuration 4 that female code book of codebook configuration 2, grade 2b that female code book of grade 2a includes includes；Female code book of grade 2 is identical as the codebook configuration 4 that female code book of codebook configuration 2, grade 3b that female code book of grade 3a includes includes.Such as, when the wave beam grade that electronic equipment uses changes into grade 3a from grade 2a, electronic equipment selects codebook configuration 2 as the initial codebook configuration after changing into grade 3a, and female code book of grade 3a determined by loading, according to the testing result to the candidate beam, codebook configuration is selected from female code book of load, 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 selects codebook configuration 4 as the initial codebook configuration after changing into grade 3b, and female code book of grade 3b determined by loading, according to the testing result to the candidate beam, codebook configuration is selected from female code book of load, to replace codebook configuration 4.And so on.
From fig. 4, it can be seen that in terms of codebook configuration, at least part for each codebook configuration for including in female code book of grade 2a, 2b be In Grade 1 female code book in include codebook configuration carry out extension acquisition in horizontal and/or vertical.At least part for each codebook configuration for including in female code book of grade 3a, 3b be In Grade 2a, 2b respectively female code book in include codebook configuration carry out horizontal and/or vertical on extension obtain.
The selection method of codebook configuration according to the present invention provides a kind of code book, the code book can not only support the antenna port quantity of Rel-14, and has the backwards compatibility (can smoothly extend from Rel-13) and forward compatibility of antenna port quantity (can be further expanded, prepare for subsequent version), and the UE to be worked in communication network in different editions can be looked after.
Fig. 5 is the block diagram of the electronic equipment of embodiment according to the present invention, which has multiple wave beam grades.Referring to Fig. 5, electronic equipment includes: female code book determination unit, it is configured to when the wave beam grade that the electronic equipment uses changes into the second wave beam grade from the first wave beam grade of multiple wave beam grades, female code book of candidate beam and the second wave beam grade is determined in the wave beam that electronic equipment is able to use；And codebook configuration selecting unit, it is configured to select codebook configuration from female code book of the second wave beam grade according to the testing result to the candidate beam.
For example, the electronic equipment of embodiment according to the present invention can be base station.When the wave beam grade that base station uses changes into the second wave beam grade from the first wave beam grade, female code book determination unit in base station selects candidate beam in the wave beam that base station is able to use, and determines that female code book of the second wave beam grade is corresponding with candidate beam；Codebook configuration selecting unit in base station, to the testing result of candidate beam, selects codebook configuration from female code book of the second wave beam grade according to UE.
In another example the electronic equipment of embodiment according to the present invention can be UE.When wave beam grade changes into the second wave beam grade from the first wave beam grade, female code book determination unit of UE determines female code book of candidate beam and the second wave beam grade according to the notice of base station；The codebook configuration selecting unit of UE selects codebook configuration to feed back to base station according to the testing result to candidate beam from female code book of the second wave beam grade.
An example according to the present invention can indicate candidate beam by candidate beam index.Electronic equipment can also include index obtaining unit, be configured to obtain the candidate beam index for indicating identified candidate beam.For example, index obtaining unit produces candidate beam index corresponding with identified candidate beam when electronic equipment is base station.In another example mobile station can receive the control signaling sent from base station to obtain candidate beam index when electronic equipment is mobile station.
An example according to the present invention, candidate beam index can be absolute indices.Alternatively, another example according to the present invention, candidate beam index are also possible to relative indexing.
Specifically, when changing into the second wave beam grade from the first wave beam grade, candidate beam index can be the absolute indices of candidate beam.Absolute indices can be position of first wave beam in wave beam grid map in candidate beam.
However, too big variation will not occur for the position of corresponding candidate wave beam when changing into the second wave beam grade from the first wave beam grade.Therefore, alternatively, in order to save signaling overheads, candidate beam index may include basis index and index offset.The position of basic wave beam in index the first wave beam grade of instruction of basis, and when changing into the second wave beam grade from the first wave beam grade, basis index does not change usually, therefore no need to send bases to index.Index offset indicates the offset of the position relative to basic wave beam.The offset 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 to zoom in and out acquisition to female code book of the first wave beam grade.
Another example according to the present invention, female code book of the second wave beam grade can be zooms in and out acquisition to female code book of the first wave beam grade in the horizontal and/or vertical.
Such as, when the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than when, female code book of the second wave beam grade is to be extended acquisition in the horizontal and/or vertical to female code book of the first wave beam grade；When the antenna port number for including in the second wave beam grade is fewer than the antenna port number for including in the first wave beam grade, female code book of the second wave beam grade is to carry out reduction acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
In this case, electronic equipment can also indicate the variation 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 parameter indicate the second wave beam grade in include antenna port number than include in the first wave beam grade antenna port number more than or it is few；And direction-determining unit, it is configured to determine that direction instruction parameter, direction instruction parameter indicate that female code book of the second wave beam grade is also to be vertically oriented to scale in the horizontal direction to female code book of the first wave beam grade.Table 1 above shows the embodiment of rank instruction parameter and direction instruction parameter.However, this is only example, embodiments of the present invention are not limited thereto.
Female code book of another example according to the present invention, the first wave beam grade can be identical as the specific codebook configuration in the codebook configuration for including in female code book of the second wave beam grade.
Such as, electronic equipment can also include: initial codebook obtaining unit, it is configured to the testing result in the basis to candidate beam, before selecting codebook configuration from female code book of the second wave beam grade, selects the specific codebook configuration as the initial codebook configuration after changing into the second wave beam grade.Electronic equipment can also include loading unit, be configured to female code book of the second wave beam grade determined by loading, wherein codebook configuration unit is selected from female code book of the second wave beam grade of load according to the testing result to candidate beam
Codebook configuration, to replace the initial codebook configuration.
Electronic equipment according to the present invention provides a kind of code book, the code book can not only support the antenna port quantity of Rel-14, and has the backwards compatibility (can smoothly extend from Rel-13) and forward compatibility of antenna port quantity (can be further expanded, prepare for subsequent version), and the UE to be worked in communication network in different editions can be looked after.
Those of ordinary skill in the art may be aware that being incorporated in each unit and step of embodiments of the present invention description, can be realized with electronic hardware, computer software, or a combination of the two.And software module can be placed in any form of computer storage medium.For example, the function that can be realized by female code book determination unit, the codebook configuration determination unit that the electronic equipment of processor (such as CPU) Lai Zhihang Fig. 5 includes.
In order to clearly illustrate the interchangeability of hardware and software, each exemplary composition and step are generally described according to function in the above description.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Those skilled in the art can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.
Although exemplifying and describing the present invention referring to various implementations, skilled person will understand that, in the case where not departing from the spirit and scope of the present invention as defined by appended claims and their equivalents, this can be carried out various changes of form and details.
Claims (16)
- A kind of selection method of the codebook configuration executed by electronic equipment, wherein the electronic equipment has multiple wave beam grades, which comprisesWhen 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, female code book of candidate beam and the second wave beam grade is determined in the wave beam that the electronic equipment is able to use；AndAccording to the testing result to the candidate beam, codebook configuration is selected from female code book of the second wave beam grade, whereinFemale 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.
- The method as described in claim 1, further includes:The candidate beam index of candidate beam determined by indicating is obtained, 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,Offset of the index offset instruction relative to the position of the basic wave beam.
- The method as described in claim 1, whereinFemale code book of the second wave beam grade is to zoom in and out acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
- Method as claimed in claim 3, whereinWhen the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than when, female code book of the second wave beam grade is to be extended acquisition in the horizontal and/or vertical to female code book of the first wave beam grade；When the antenna port number for including in the second wave beam grade is fewer than the antenna port number for including in the first wave beam grade, female code book of the second wave beam grade is to carry out reduction acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
- Method as claimed in claim 4, further includes:Determine that rank indicates parameter, rank instruction parameter indicate the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than or it is few；AndDetermine that direction instruction parameter, the direction instruction parameter indicate female code book of the second wave beam grade It is also to be vertically oriented to scale in the horizontal direction to female code book of the first wave beam grade.
- The method as described in claim 1, whereinThe area that the area that the corresponding whole wave beams of female code book of the first wave beam grade are covered whole wave beams corresponding with female code book of the second wave beam grade are covered is identical.
- The method as described in claim 1, whereinThe specific codebook configuration in codebook configuration that female code book of the second wave beam grade includes is identical as female code book of the first wave beam grade.
- Method as described in weighing and require 7, whereinIn the basis to the testing result of the candidate beam, before selecting codebook configuration in female code book of the second wave beam grade, the method also includes:Select the specific codebook configuration as the initial codebook configuration after changing into the second wave beam grade, andFemale code book of second wave beam grade determined by loading,The basis is to the testing result of the candidate beam, and selection codebook configuration includes: from female code book of the second wave beam gradeAccording to the testing result to the candidate beam, codebook configuration is selected from female code book of the second wave beam grade of load, to replace the initial codebook configuration.
- Method as described in weighing and require 1, whereinThe antenna port number for including in the second wave beam grade is more than the antenna port number for including in the first wave beam grade；At least part for each codebook configuration for including in female code book of the second wave beam grade is that the extension that the codebook configuration for including carries out in horizontal and/or vertical obtains in female code book to the first wave beam grade.
- A kind of electronic equipment, the electronic equipment have multiple wave beam grades, which includes:Female code book determination unit, it is configured to 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, female code book of candidate beam and the second wave beam grade is determined in the wave beam that the electronic equipment is able to use；AndCodebook configuration selecting unit is configured to select codebook configuration from female code book of the second wave beam grade according to the testing result to the candidate beam, whereinFemale code book of the second wave beam grade is zoomed in and out to female code book of the first wave beam grade It obtains.
- Electronic equipment as claimed in claim 10, further includes:Obtaining unit is indexed, is configured to obtain the candidate beam index for indicating identified candidate beam, 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,Offset of the index offset instruction relative to the position of the basic wave beam.
- Electronic equipment as claimed in claim 10, whereinFemale code book of the second wave beam grade is to zoom in and out acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
- Electronic equipment as claimed in claim 12, whereinWhen the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than when, female code book of the second wave beam grade is to be extended acquisition in the horizontal and/or vertical to female code book of the first wave beam grade；When the antenna port number for including in the second wave beam grade is fewer than the antenna port number for including in the first wave beam grade, female code book of the second wave beam grade is to carry out reduction acquisition in the horizontal and/or vertical to female code book of the first wave beam grade.
- Electronic equipment as claimed in claim 13, further includes:Level deciding unit, is configured to determine rank instruction parameter, rank instruction parameter indicate the antenna port number for including in the second wave beam grade than include in the first wave beam grade antenna port number more than or it is few；AndDirection-determining unit is configured to determine that direction instruction parameter, the direction instruction parameter indicate that female code book of the second wave beam grade is also to be vertically oriented to scale in the horizontal direction to female code book of the first wave beam grade.
- Electronic equipment as claimed in claim 10, whereinThe specific codebook configuration in codebook configuration that female code book of the second wave beam grade includes is identical as female code book of the first wave beam grade.
- Electronic equipment as claimed in claim 15, further includes:Initial codebook obtaining unit is configured to the testing result in the basis to the candidate beam, 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 is configured to female code book of the second wave beam grade determined by loading, whereinThe codebook configuration determination unit selects codebook configuration from female code book of the second wave beam grade of load, to replace the initial codebook configuration according to the testing result to the candidate beam.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016103190647 | 2016-05-12 | ||
| 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN109478911A true CN109478911A (en) | 2019-03-15 |
| CN109478911B CN109478911B (en) | 2021-09-07 |
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| 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 |
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| 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 |
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| Country | Link |
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| JP (1) | JP6679756B2 (en) |
| CN (2) | CN107370523A (en) |
| WO (1) | WO2017193991A1 (en) |
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| US10305568B1 (en) * | 2017-12-15 | 2019-05-28 | Motorola Mobility Llc | Coding main beam information in CSI 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 |
| US11489569B2 (en) * | 2019-08-06 | 2022-11-01 | Qualcomm Incorporated | Update MMW codebook for smart phone cover change |
| 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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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017193991A1 (en) | 2017-11-16 |
| CN109478911B (en) | 2021-09-07 |
| JP2019521559A (en) | 2019-07-25 |
| CN107370523A (en) | 2017-11-21 |
| JP6679756B2 (en) | 2020-04-15 |
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