Technical field
[0001]
　The present disclosure, a base station, terminal device, a method and a recording medium.
BACKGROUND
[0002]
　Recently, the 3GPP (Third Generation Partnership Project), are discussed 5G is a next generation communication standard. Communication technology that constitutes the 5G is also referred NR (New Radio Access Technology).
[0003]
　One technique for constituting the NR, there is MIMO (multiple-input and multiple-output). The MIMO, a technique for performing beamforming by utilizing a plurality of antennas, beam forming can be 3D (or Full Dimension) three-dimensionally -MIMO, there is Massive-MIMO or the like which utilizes multiple antennas. In MIMO selects the appropriate beam for the terminal device, the improvement of the beam association techniques are required.
[0004]
　For example, the following Non-Patent Document 1, the beam Sistan ping at rough (rough) accurate and beam Sistan ping at the beam (Accurate) beam, performs phased beams Sistan ping technique for beam selection It has been disclosed.
CITATION
Non-patent literature
[0005]
Non-Patent Document 1: CATT, "Design of beam training", [online], 10 May 2016, 3GPP TDocs (written contributions) at meeting, Meeting: R1-86b - 2016-10-10 to 2016-10-14, Lisbon, [2016 December 7, the search], Internet
Summary of the Invention
Problems that the Invention is to Solve
[0006]
　However, the technique disclosed in Non-Patent Document, although efficient beam selection is possible is, study on the power consumption of the terminal apparatus was not enough.
[0007]
　Accordingly, the present disclosure proposes an efficient beam selection and reduction and which can achieve both the mechanism of power consumption of the terminal device.
Means for Solving the Problems
[0008]
　According to the present disclosure, is selected based on the reception result of the plurality of transmitted using a plurality of first beam set in advance is formed by a plurality of antennas the first reference signal, the terminal apparatus sending or receiving an irradiation range of the first beam suitable for communication using a plurality of second beam having an irradiation range that is subdivided, and the terminal device based on the reception result of the plurality of second reference signal a selector for selecting said second beam suitable for the communication, for the plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal base station comprising: a notification unit that notifies information indicating the positional relationship between the plurality of second resource to the terminal device, the corresponding to a plurality of said second beam is provided.
[0009]
　Further, according to the present disclosure, a terminal device, based on the reception result of the plurality of multiple preset is formed by the antenna of the first beam a plurality of first reference signals sent using is selected, the illumination range of the first beam suitable for communication with the terminal device has transmitted or received using a plurality of second beam having an irradiation range that is subdivided, the plurality of second reference signal from the base station to select the second beam suitable for communication with the terminal device based on the reception result, the plurality of first resources corresponding to a plurality of said first beam for said first reference signal on the basis of the plurality of the acquisition unit for acquiring information indicating a positional relationship between the plurality of second resource corresponding to the second beam, information indicating the positional relationship for the second reference signal wherein by the base station the second beam A selection assistance section that performs processing for supporting selection, the terminal device comprising a are provided.
[0010]
　Further, according to the present disclosure, it is selected based on the reception result of the plurality of transmitted using a plurality of first beam set in advance is formed by a plurality of antennas the first reference signal, the terminal device a plurality of the second beam transmitted or received using the terminal based on the reception result of the plurality of second reference signal having a first irradiation range obtained by dividing the irradiation range of the beam suitable for communication with the and selecting the second beam suitable for communicating with the device, the plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal method executed and the information indicating the positional relationship between the plurality of second resource notifies the terminal devices corresponding to the plurality of the second beam, the processor including for is provided.
[0011]
　Further, according to the present disclosure, it is selected based on the reception result of the plurality of transmitted using a plurality of first beam set in advance is formed by a plurality of antennas the first reference signal, the terminal device a plurality of the second beam transmitted or received using the terminal based on the reception result of the plurality of second reference signal having a first irradiation range obtained by dividing the irradiation range of the beam suitable for communication with the from the base station to select the second beam suitable for communicating with the device, a plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal a plurality of said and to obtain information indicating a positional relationship between the plurality of second resource corresponding to the second beam, the second beam by the base station based on the information indicating the positional relationship for processing in order to support the selection Method performed by a processor comprising a carrying out the, is provided.
[0012]
　Further, according to the present disclosure, a computer, which is selected based on the reception result of the plurality of transmitted using a preset plurality of the first beam is formed by a plurality of antennas the first reference signal , based on the reception result of the first beam a plurality of second transmitted or received using a beam, a plurality of second reference signal having an irradiation range obtained by dividing the irradiation range suitable for communicating with the terminal device selecting said second beam suitable for communication with the terminal device Te selecting section and, wherein the plurality of first resource a second corresponding to the plurality of the first beam for the first reference signal a notification unit for information indicating the positional relationship between the plurality of second resource notifies the terminal devices corresponding to the plurality of the second beam for the reference signal, a program to function as is recorded provide a recording medium It is.
[0013]
　Further, according to the present disclosure, a computer, which is selected based on the reception result of the plurality of transmitted using a preset plurality of the first beam is formed by a plurality of antennas the first reference signal , based on the reception result of the first beam a plurality of second transmitted or received using a beam, a plurality of second reference signal having an irradiation range obtained by dividing the irradiation range suitable for communicating with the terminal device the terminal device from the base station to select the second beam suitable for communication with, the plurality of first resource a second corresponding to the plurality of the first beam for the first reference signal Te wherein the acquisition unit for acquiring information indicating a positional relationship between the plurality of second resources corresponding to a plurality of said second beam, by the base station based on the information indicating the positional relationship for the reference signal selection of the second beam A selection assistance section that performs processing for assist, a recording medium having a program recorded thereon for functioning as is provided.
[0014]
　According to the present disclosure, the base station allows for efficient beam selection by performing stepwise beam associations. Further, the terminal device, the processing for supporting the second beam selected in the base station, by performing on the basis of the information indicating the positional relationship between the first resource and the second resource, the power consumption of its it is possible to reduce.

The scope of the claims
[Requested item 1]
　It was selected based on the reception result of the plurality of first reference signal transmitted using a predetermined plurality of the first beam is formed by a plurality of antennas, the first suitable for communication with a terminal device sent or received using a plurality of second beam having an irradiation range obtained by dividing the irradiation range of the beam, the first suitable for communication with the terminal device based on the reception result of the plurality of second reference signal a selection unit for selecting a second beam,
　a plurality of the second order of the plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal a notification unit, the information indicating the positional relationship between the plurality of second resource notifies the terminal device corresponding to the beam of
the base station with a.
[Requested item 2]
　The selection unit uses each of the plurality of the first beam and transmitting the first reference signal, reported the first report indicating the reception result of the first reference signal from the terminal device select the first beam on the basis of the information, selected the first beam and the second reference signal using each of the plurality of the second beam having an irradiation range obtained by dividing the irradiation range of It sends, to select the second beam based on the second report information indicating the reception result of the second reference signal reported from the terminal device, the base station according to claim 1.
[Requested item 3]
　The selection unit uses each of the plurality of the first beam and transmitting the first reference signal, a plurality of which has an irradiation range obtained by dividing the irradiation range of each of the plurality of the first beam the second using each beam transmits the second reference signal, the terminal device based on the second report information indicating the reception result of the reported second reference signal from the second selecting a beam, a base station according to claim 1.
[Requested item 4]
　A plurality of said second corresponding to a plurality of said second beam having an irradiation range obtained by dividing the irradiation range of the first beam corresponding to the first of said first resource at time resources after the resources 2 resources are located, the base station according to claim 1.
[Requested item 5]
　All of the second resource at a time resource later than all of the first resource is arranged, a base station according to claim 1.
[Requested item 6]
　The number of the second beam having an irradiation range subdividing the irradiation range of the first beam is variable, the base station according to claim 1.
[Requested item 7]
　The selection unit uses each of the plurality of the first beam and transmitting the first reference signal, reported the first report indicating the reception result of the first reference signal from the terminal device select the first beam on the basis of the information, the second reference signal transmitted from the terminal device, a plurality of the first with the irradiation range obtained by dividing the irradiation range of the selected first beam using each of the second beam received at the second resource, selecting the second beam based on the reception result, the base station according to claim 1.
[Requested item 8]
　The selection unit includes information indicative of the second resource and notifies the adjacent base station, receiving the second reference signal at said second resource, the base station according to claim 7.
[Requested item 9]
　The selection unit receives the second reference signal at a second resource of the serving base station of the terminal apparatus, a base station according to claim 7.
[Requested item 10]
　The selection unit, said first resource and said second resource, multiplexed by the first resource and the second resource and the time direction or the frequency direction of the other base stations, according to claim 7 base stations of.
[Requested item 11]
　The arrangement of the second resource is set individually to the terminal device, the base station according to claim 7.
[Requested item 12]
　It said second resource is plurality to one of the second beam, the base station according to claim 7.
[Requested item 13]
　A terminal apparatus,
　which is selected based on the reception result of the plurality of transmitted using a plurality of first beam set in advance is formed by a plurality of antennas the first reference signal, and the terminal device the irradiation range of the first beam suitable for communication transmitted or received using a plurality of second beam having an irradiation range that is subdivided, the terminal device based on the reception result of the plurality of second reference signal from the base station to select the second beam suitable for communication with, the plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal an acquisition unit that acquires information indicating a positional relationship between the plurality of second resources corresponding to a plurality of said second beam, for
　the second beam by the base station based on the information indicating the layout relationship to support the selection A selection support unit which performs management,
the terminal device comprising a.
[Requested item 14]
　The selection support unit refers to the information indicating the positional relationship, a plurality of the second corresponding to a plurality of said second beam having an irradiation range obtained by dividing the irradiation range of the selected first beam receiving the second reference signal in the second resource, and reports the second report information indicating the reception result of the second reference signal to the base station, the terminal apparatus according to claim 13.
[Requested item 15]
　The selection support unit reports the first report information indicating the reception result of the first reference signal to the base station, the terminal apparatus according to claim 14.
[Requested item 16]
　The selection support unit refers to the information indicating the positional relationship, corresponding to the plurality of the second beam having an irradiation range obtained by dividing the irradiation range of the selected first beam by the serving base station transmitting the second reference signal at a plurality of the second resource, the terminal device according to claim 13.
[Requested item 17]
　It was selected based on the reception result of the plurality of first reference signal transmitted using a predetermined plurality of the first beam is formed by a plurality of antennas, the first suitable for communication with a terminal device sent or received using a plurality of second beam having an irradiation range obtained by dividing the irradiation range of the beam, the first suitable for communication with the terminal device based on the reception result of the plurality of second reference signal selecting a second beam,
　the first plurality of for the reference signal the first beam a first plurality corresponding to the resource to a plurality of the second for the second reference signal and notifying the information indicating the positional relationship between the plurality of second resource corresponding to the beam to the terminal device,
a method performed by a processor comprising a.
[Requested item 18]
　It was selected based on the reception result of the plurality of first reference signal transmitted using a predetermined plurality of the first beam is formed by a plurality of antennas, the first suitable for communication with a terminal device sent or received using a plurality of second beam having an irradiation range obtained by dividing the irradiation range of the beam, the first suitable for communication with the terminal device based on the reception result of the plurality of second reference signal from the base station to select a second beam, a plurality of the second order of the plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal and obtaining information indicating the positional relationship between the plurality of second resource corresponding to the beam of the
　process for supporting selection of said second beam by the base station based on the information indicating the layout relationship and it is carried out,
including the Method to be executed by the processor.
[Requested item 19]
　The computer,
　which is selected based on the reception result of the plurality of transmitted using a preset plurality of the first beam is formed by a plurality of antennas the first reference signal, suitable for communication with the terminal device sent or received using a plurality of second beam having an irradiation range obtained by dividing the irradiation range of the first beam, for communication with the terminal device based on the reception result of the plurality of second reference signal a selector for selecting suitable second beams,
　a plurality of for a plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal the information indicating the positional relationship between the plurality of second resource corresponding to said second beam, and a notification unit configured to notify the terminal apparatus
recording medium having a program recorded thereon for functioning as a.
[Requested item 20]
　The computer,
　which is selected based on the reception result of the plurality of transmitted using a preset plurality of the first beam is formed by a plurality of antennas the first reference signal, suitable for communication with the terminal device sent or received using a plurality of second beam having an irradiation range obtained by dividing the irradiation range of the first beam, for communication with the terminal device based on the reception result of the plurality of second reference signal from the base station to select a suitable second beams, a plurality of for a plurality of first resource and said second reference signals corresponding to a plurality of said first beam for said first reference signal an acquisition unit that acquires information indicating a positional relationship between the plurality of second resource corresponding to said second beam
　supporting a selection of said second beam by the base station based on the information indicating the layout relationship a process for And Cormorant selection support unit,
a recording medium having a program recorded thereon for functioning as a.