Method, information processing device, and program

Abstract

To improve the efficiency of measuring the interference power of multiple beams. [Solution] The computer performs the following actions: acquires information on the communication quality of multiple beams used for communication in the receiving device; and allocates radio resources for measuring interference signals by the receiving device based on the relationship between the communication beams included in the multiple beams and one or more other first beams, as indicated by the information on the communication quality of the multiple beams.

Description

Technical Field

[0001] The present disclosure relates to beam management in wireless communication.

Background Art

[0002] In wireless communication such as 5th Generation Mobile Communication System (5G), distributed MIMO (Multi-Input Multi-Output) has been proposed, in which one or more antennas near a mobile station are selected from a plurality of antennas distributed within the communication area of one base station for communication. According to distributed MIMO, by dispersing the antennas, dead spots of radio waves can be reduced and the influence of obstacles can be reduced.

[0003] When a plurality of transmission antennas are used as in distributed MIMO, the mobile station communicates using a beam specified by a control device on the network side. The radio wave intensity of the radio signal transmitted by the beam changes over time due to the movement of the mobile station and changes in the surrounding environment. Therefore, the mobile station periodically measures the received signal strength of a plurality of beams including the beam for data communication, for example, for each radio frame or slot, and reports the measurement result to the control device on the network side. An example of the received signal strength of a beam is RSRP (Reference Signal Received Power) using a reference signal. The reference signal is a signal for the purpose of measuring the radio wave propagation environment. Based on the measurement result from the mobile station, the control device reselects the beam pattern of each of a plurality of beams including the beam for data communication, which is more appropriate according to the movement of the mobile station and changes in the surrounding environment. As a result, it is possible to provide the mobile station with a beam for data communication that can provide better-quality wireless communication each time according to the movement of the mobile station and changes in the surrounding environment. The beam pattern is, simply put, the direction and width of the beam.

[0004] ​​However, RSRP may include the power of interference signals in addition to the power of the desired signal, so the signal quality may not be accurately represented. For this reason, it has been proposed that mobile stations measure the SINR (signal-to-interference noise power ratio) of the beam pattern instead of RSRP (e.g., Non-Patent Document 1). [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] 3GPP TSG-RAN WG1 Meeting #117 R1-2404746 (2024-05-20) [Non-Patent Document 2] 3GPP TR 38.802 V14.2.0 (2017-09) [Non-Patent Document 3] 3GPP TS 38.214 V18.2.0 (2024-03) [Overview of the project] [Problems that the invention aims to solve]

[0006] One aspect of this disclosure is to provide a method, an information processing device, and a program capable of improving the efficiency of measuring the interference power of multiple beams. [Means for solving the problem]

[0007] One aspect of this disclosure is, Computers To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, Based on the relationship between the communication beam included in the plurality of beams and one or more other first beams, as indicated by the information regarding the communication quality of the plurality of beams The method involves allocating wireless resources for measuring interference signals by the receiving device, and performing the above.

[0008] Another aspect of this disclosure is, To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, A control unit that performs the following: allocating radio resources for measuring interference signals by the receiving device based on the relationship between the communication beams included in the plurality of beams and one or more other first beams, as indicated by the communication quality information for the plurality of beams; This is an information processing device equipped with [a specific feature / feature].

[0009] Another aspect of this disclosure is, On the computer, To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, This program is for performing the following actions: allocating radio resources for measuring interference signals by the receiving device based on the relationship between the communication beams included in the plurality of beams and one or more other first beams, as indicated by the information regarding the communication quality of the plurality of beams.

[0010] According to one aspect of this disclosure, a method, an information processing device, and a program capable of improving the efficiency of measuring the interference power of multiple beams can be provided. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 shows an example of the system configuration of a communication system according to the first embodiment. [Figure 2] Figure 2 shows an example of a beam management sequence in a communication system. [Figure 3] Figure 3 shows an example of how to allocate wireless resources for SINR measurement. [Figure 4] Figure 4 shows an example of a wireless resource grid for the wireless resource allocation method (1) for SINR measurement. [Figure 5]FIG. 5 is an example of a radio resource grid of the radio resource allocation method (2) for SINR measurement. [Figure 6] FIG. 6 is an example of a radio resource grid of the radio resource allocation method (3) for SINR measurement. [Figure 7] FIG. 7 is a diagram illustrating the hardware configuration of the control device. [Figure 8] FIG. 8 is a diagram showing an example of the functional configuration of the control device. [Figure 9] FIG. 9 is an example of a flowchart of the SINR measurement resource determination process of the control device according to the first embodiment. [Figure 10] FIG. 10 is an example of a flowchart of the SINR measurement resource determination process according to Modification Example 1 of the first embodiment. [Figure 11] FIG. 11 is an example of a beam management sequence in Modification Example 1 of the first embodiment. [Figure 12] FIG. 12 is an example of a beam management sequence in Modification Example 2 of the first embodiment. [Figure 13] FIG. 13 is an example of a flowchart of the SINR measurement resource determination process according to the second embodiment.

MODE FOR CARRYING OUT THE INVENTION

[0012] One aspect of the present disclosure is a method in which a computer acquires information regarding communication quality for a plurality of beams used for communication of a receiving device, and based on a relationship between a communication beam included in the plurality of beams and one or more first beams other than the communication beam, regarding the plurality of beams, allocates radio resources for measurement of an interference signal by the receiving device based on the information regarding the communication quality for the plurality of beams.

[0013] The computer performing the method is, for example, a computer that operates as a control device for controlling a base station. However, it is not limited to this, and the computer may be a computer installed in the base station. The terminal station is, for example, a mobile station of a user terminal such as a smartphone, tablet terminal, or in-vehicle device. However, it is not limited to this, and the terminal station may be a stationary terminal that does not move.

[0014] Information regarding the communication quality of a beam includes, for example, values ​​related to the received signal power. These values ​​include, for example, the received signal strength (RSRP), RSSI (Received Signal Strength Indicator), RSRQ (Reference Signal Received Quality), and signal strength. Measurement of the signal-to-interference plus noise ratio (SINR). There are values ​​or estimated values, etc.

[0015] In one aspect of this disclosure, the allocation of radio resources for measuring interference signals is performed based on the relationship between communication beams and other beams indicated by information regarding communication quality, thereby improving the efficiency of interference signal measurement. "Improved efficiency in interference signal measurement" means, for example, that fewer radio resources are used to measure interference signals, that the overhead associated with measuring interference signals is lower, and / or that the measurement accuracy of the power of the interference signals is better.

[0016] In one aspect of the present disclosure, the computer may further perform the task of obtaining a first value indicating the relationship between a communication beam and one or more first beams, based on information regarding the communication quality of multiple beams. The computer may determine, based on the relationship between the first value and a first threshold, whether or not to allocate a first radio resource for measuring interference signals. The first threshold is a threshold value of the first value indicating that the influence of the signals on one or more first beams on the signals on the communication beam is small.

[0017] The first value may be, for example, the difference in the received signal power values ​​between the communication beam and one or more first beams, if the information regarding communication quality is a value regarding received signal power. More specifically, if the information regarding the communication quality of a beam is a measured value of received signal power by the receiving device, the first value may be the difference in the measured value of received signal power by the receiving device between the communication beam and one or more first beams. If the information regarding the communication quality of a beam is an estimated value of received signal power at the receiving device based on the position information of the receiving device and the transmitting point which is the source of the beam, the first value may be the difference in the estimated value of received signal power between the communication beam and one or more first beams. The transmitting point is, for example, a base station and relay station equipped with an antenna, or an antenna equipped at a base station and relay station.

[0018] By determining whether or not to allocate a first radio resource for measuring interference signals depending on whether the influence of one or more signals on a first beam on the signals on the communication beam is small, radio resources can be used efficiently.

[0019] For example, if the first value is greater than or equal to the first threshold, the computer will not allocate the first wireless resource and will instead send the same wireless resource to all beams of the receiving device. The signal assigned to the first radio resource may be used to measure interference signals. In other words, if it is shown that the influence of one or more signals on the first beam on the signal on the communication beam is small, the first radio resource is not allocated, and the first radio resource can be allocated to signals for purposes other than measuring interference signals. Signals assigned to the same radio resource for all beams are, for example, non-zero power CSI-RS (Channel State Information Reference Signal) or SSB (SS / PBCH (Synchronization Signals) in LTE, LTE-Advanced, and 5G and later mobile communication systems. This is the Physical Broadcast Channel Block.

[0020] For example, if the first value is less than a first threshold, the computer may allocate a first radio resource, different from the first signal for measuring communication quality on the communication beam, to the first signal for measuring communication quality on each of the one or more first beams as the first radio resource. That is, if it is shown that the influence of the signals on one or more first beams on the signal on the communication beam is not insignificant, the first radio resource is allocated, separating the radio resources for the signal on the communication beam from the interference signals on the other first beams, and separating the measurement of communication quality. This allows the receiving device to measure the power of the interference signal with greater accuracy. The first signal is, for example, CSI-RS in LTE, 5G, and 6G and later mobile communication systems. However, the first signal is not limited to this, and an appropriate signal may be used depending on the wireless communication system.

[0021] For example, the computer may, when the first value is less than a first threshold, and furthermore, when the first value is less than a second threshold, assign a non-zero power first signal or a second signal for interference signal measurement to a radio resource that is assigned a first signal on one of multiple beams. That is, if it is shown that the influence of one or more signals on the first beams on the signals on the communication beams is large enough, then no other signals are transmitted in the radio resource assigned to the first signal on one of the first beams. Therefore, the receiving device can measure the received signal power of the first signal on each first beam with greater accuracy, and can measure the power of the interference signal with greater accuracy. The second signal for interference signal measurement is, for example, CSI-IM (Interference-Measurement) in LTE, 5G, and 6G and later mobile communication systems. However, the second signal is not limited to this, and an appropriate signal may be used depending on the wireless communication system.

[0022] Another aspect of this disclosure can also be identified as an information processing device that performs the processing of the above method. The information processing device includes a control unit that performs: acquiring information on the communication quality of a plurality of beams used for communication of a receiving device; and allocating radio resources for measuring interference signals by the receiving device based on the relationship between the communication beams included in the plurality of beams and one or more other first beams indicated by the information on the communication quality of the plurality of beams. The control unit is, for example, a processor such as a CPU (Central Processing Unit).

[0023] Another embodiment of the method can also be defined as a program for causing a computer to execute, and a computer-readable, non-temporary storage medium on which the program is recorded.

[0024] Embodiments of this disclosure will be described below with reference to the drawings. The configurations of the following embodiments are illustrative, and this disclosure is not limited to the configurations of these embodiments.

[0025] <First Embodiment> Figure 1 is a diagram showing an example of the system configuration of the communication system 100 according to the first embodiment. The communication system 100 includes user equipment (UE) 2, control device 1, and a plurality of distributed base stations. It is a distributed MIMO system that includes [unclear / unclear]. The communication system 100 is a wireless communication system of mobile communication methods such as 5G, LTE (Long Term Evolution), and 6G or later. Device 1 is a device on the core network to which distributed base stations are connected. However, it is also possible to consider Control Device 1 as the core network itself or a system included in the core network. The core network includes, for example, an optical fiber network. Control Device 1 controls the distributed base stations and UE 2.

[0026] A distributed base station, along with other distributed base stations within the same communication area, provides a radio access network to UE 2 located within that communication area. The three distributed base stations (RU#1~#3) shown in Figure 1 are assumed to be located within the same communication area. The distributed base stations, Each is connected to control device 1.

[0027] A distributed base station is equipped with an antenna capable of forming multiple beam patterns. The antenna used in a distributed base station is, for example, an adaptive array antenna. An adaptive array antenna is an array antenna in which multiple antenna elements are arranged. The adaptive array antenna can electrically change its beam pattern by adaptively controlling the weighting of each antenna element according to the radio wave propagation environment. A beam pattern can also be described as the directivity of the beam formed by the adaptive array antenna. The beam pattern of a distributed base station is controlled by a control device 1. Note that a distributed base station may have one antenna or multiple antennas.

[0028] UE 2 is a terminal station such as a smartphone, tablet, wearable device, or in-vehicle data communication device. However, it is not limited to these, and UE 2 may be a stationary terminal device. Alternatively, a relay station that relays wireless communication between a distributed base station and a terminal station can be used as a mobile station instead of UE 2. Relay stations include small base stations, mobile base stations, in-vehicle devices, and smartphones. In the first embodiment, UE 2 also has multiple antennas. However, it is not limited to these, and UE 2 may have only one antenna.

[0029] In the example shown in Figure 1, distributed base station RU#1 includes transmitting points m_(0), m_(1), and m_(2), distributed base station RU#2 includes transmitting points m_(3) and m_(4), and distributed base station RU#3 includes transmitting points m_(5) and m_(6). Three beams, b0, b1, and b2, are transmitted from distributed base station RU#1. Distributed base station RU#1 can also be represented as the transmitting points m_(0), m_(1), and m_(2) of beams b0, b1, and b2. The string after the underscore or the string in parentheses is shown as a subscript in the figure. Two beams, b3 and b4, are transmitted from distributed base station RU#2. Two beams, b5 and b6, are transmitted from distributed base station RU#3. UE 2 uses the beam with the best communication quality from among beams b0-b6 to perform communication. UE 2 is an example of a "receiving device".

[0030] UE 2 receives a set of beams b0-b6 and designates beam b0 as the communication beam from control device 1, and uses beam b0 to communicate. However, since the radio wave reception environment of UE 2 changes moment by moment due to UE 2's movement, UE 2 measures the communication quality of the beamset including the multiple beams, for example, the received signal power (RSRP) of the reference signal, and reports it to control device 1. Based on the report of the measurement results of the communication quality of the multiple beams from UE 2, control device 1 detects the change in the radio wave reception environment of UE 2, selects a new beamset that is more suitable for the radio wave reception environment of UE 2, and notifies UE 2.

[0031] In the first embodiment, UE 2 may or may not report the measurement results of the communication quality to the control device 1. This is determined based on the SINR of the multiple beams. Therefore, the control device 1, To enable SINR to be measured more efficiently, wireless resources for measuring interference signals are allocated to multiple beams from each distributed station.

[0032] Figure 2 shows an example of a beam management sequence in communication system 100. Figure 2 illustrates the case where distributed station #1 and distributed station #2 perform beamforming on UE 2.

[0033] In S11, control device 1 performs beam selection. In beam selection, a beamset including a communication beam and a measurement beam, and the communication beam itself are determined. In S11, control device 1 sends a message to distributed station #1, distributed station #2, and UE 2, for example, 3GPP TR 38.802 V14.2.0 The beam management procedures P1-P3, disclosed in 6.1.6.1 Beam management of (2017-09), are executed. The beam management procedures P1-P3 are as follows: The transmitting point is an antenna, or a base station or relay station equipped with an antenna. In Figure 2, the transmitting points are distributed station #1 and distributed station #2.

[0034] (P1) The transmitting point performs a beam sweep, transmitting the same signal while sequentially switching between multiple different beams to cover the entire cell. The UE receives signals from these multiple beams with a wide beamwidth, measures the RSRP of the reference signal for each beam, and reports it to the transmitting point. (P2) Based on the report from the UE, the transmitting point performs a beam sweep on multiple different beams, narrowing the coverage area (width of each beam). The UE receives signals from multiple beams that have been narrowed from wide beam widths, measures the RSRP of the reference signal for each beam, and reports it to the transmitting point. Multiple beams transmitted from the transmitting point in step P2 are selected as a beamset. (P3) Based on the report from the UE, the transmitting point repeatedly transmits the signal at a predetermined interval using the beam with the best RSRP. The UE receives the signal on multiple beams and determines which beam can be received with the best RSRP. The beam transmitted from the transmitting point in step P3 is selected as the communication beam.

[0035] In the first embodiment, in the above steps (P1)-(P3), communication between UE 2 and each distributed station is conducted via the control device 1. That is, reports from UE 2 are transmitted to the control device 1. Based on the reports from UE 2, the control device 1 determines the beams to be transmitted from each distributed station in P2 or P3 and notifies each distributed station.

[0036] Assuming that the beam transmitted from distributed station #1 is selected as the communication beam by the beam selection in S11, distributed station #1 is a serving base station that transmits the communication beam. In this case, the signal from distributed station #2 becomes an interfering signal to the signal on the communication beam from distributed station #1. A distributed station that transmits an interfering signal will be referred to as an interfering station. The beam from an interfering station is sometimes referred to as an interfering beam. An interfering beam is an example of a "first beam".

[0037] In S12, the control device 1 determines the radio resources for SINR measurement based on the RSRPs of the multiple beams determined in S11, so that SINR can be measured more efficiently at UE 2. In the SINR measurement resource determination process, the control device 1 determines whether to allocate different radio resources for the signal used to measure the communication beam and the signal used to measure the interference beam, and allocates the radio resources for the measurement signals to the communication beam and the interference beam according to the determination result. Details of the SINR measurement resource determination process will be described later.

[0038] In S13, the control device 1 sends beamsets and communication beams to each distributed station and UE 2. The system then notifies the distribution of radio resources for SINR measurement. This notification is sent to UE 2 via distributed station #1, which is the serving base station (S14). From this point onward, each distributed station transmits a measurement signal using its allocated radio resources at the same time (due to distributed MIMO).

[0039] In S21, UE 2 measures the SINR and RSRP for the beams included in the notified beamset. In S22, UE 2 determines whether or not to report to control device 1 based on the SINR measured in S21. For example, if the SINR is below a threshold, UE 2 decides to report to control device 1. However, the conditions for determining whether or not to report to control device 1 are not limited to this. If it is determined that a report should be made to control device 1, the process proceeds to S23, where control device 1 creates report data including the RSRP for each beam. If it is determined that a report should not be made to control device 1, the process proceeds to S21, and the beams are measured again. In S24, UE 2 sends the report data to control device 1 to make the report.

[0040] When the control device 1 receives report data from UE 2, it performs beam selection (S31) and SINR measurement resource determination processing (S32), similar to S11 and S12. The process shown in Figure 2 is repeated while UE 2 is performing data communication.

[0041] Figure 3 shows an example of a method for allocating wireless resources for SINR measurement. As an example of a method for allocating wireless resources for SINR measurement, the allocation methods (1)-(5) shown in Figure 3 are cited. First, the wireless resources for measuring interference signals (IMR (Interference) Whether or not Management Resources are used determines the allocation method (1) and allocation method (2). -(3) can be divided into these two parts.

[0042] Figure 4 shows an example of a radio resource grid for the radio resource allocation method (1) for SINR measurement. Figure 4 shows the allocation of radio resources for three distributed stations #1 to #3. Distributed station #1 is a serving base station, and distributed stations #2 and #3 are interference stations. One grid cell in the radio resource grid corresponds to one resource element.

[0043] In allocation method (1), IMR is not used, and NZP (Non Zero Power) CSI-RS (Channel State Information Reference Signal) or SSB (SS / PBCH (Synchronization Signals and Physical Broadcast Channel) Block) is used for measurement signals on the communication beam and measurement signals on the interference beam. The signal for measurement and the signal for measurement on the interference beam are assigned to the same radio resource. The radio resource to which the measurement signal is assigned is called CMR (Channel Management Resources). In the first embodiment, MIMO is assumed, so multiple signals transmitted on the same radio resource for each beam can be separated at UE 2. UE 2 uses the separated signals to measure the SINR.

[0044] However, if only NZP CSI-RS is used in allocation method (1), the desired signal and the interfering signal are the same signal, and the measurement signal on one beam is subject to interference from the measurement signals on other beams. Therefore, the measurement accuracy of the received signal power of the measurement signal on that beam tends to be low. However, since IMR is not used in allocation method (1), radio resources can be saved.

[0045] On the other hand, SSB is a signal that is required to be transmitted at a predetermined period, while CSI-RS is not a required signal. Therefore, for example, if the timing of transmitting CSI-RS and the timing of transmitting SSB overlap on a certain beam, SSB can be used as a measurement signal without allocating radio resources to CSI-RS on that beam. By using this method, it becomes unnecessary to allocate separate wireless resources for measurement on the beam, thus saving wireless resources. Hereinafter, the signal on the communication beam will be referred to as the desired signal. The signal on the interference beam will be referred to as the interference signal. The power of the interference signal will be referred to as the interference power. CSI-RS is an example of the "first signal".

[0046] Figure 5 shows an example of a radio resource grid for the radio resource allocation method (2) for SINR measurement. The assumptions for Figure 5 are the same as those for Figure 4. In allocation methods (2)-(5), the radio resources allocated differ for the desired signal and the interference signal. In allocation method (2), NZP CSI-RS is used for the signal used to measure the desired signal, and NZP CSI-RS is used for the signal used to measure the interference signal. Different radio resources are allocated to the NZP CSI-RS used to measure the desired signal and the NZP CSI-RS used to measure the interference signal. If there are multiple interference beams, NZP on each interference beam is allocated so as not to overlap between interference beams. Radio resources may be allocated to the CSI-RS, or they may be allocated to the NZP CSI-RS on each interference beam, overlapping across some or all of the interference beams. The radio resources allocated to the NZP CSI-RS for measuring the desired signal become the CMR. The radio resources allocated to the NZP CSI-RS for measuring the interference signal become the IMR.

[0047] In allocation method (2), radio resources to which NZP CSI-RS is allocated on any beam in a beamset including communication beams and interference beams are allocated signals such as data on other beams. Therefore, NZP on a certain beam CSI-RS is subject to interference from signals on other beams. However, unlike assignment method (1), the NZP CSI-RS on a given beam and the signals on other beams are different signals, so the effect of interference is reduced, and the power of the desired signal and the interference power can be measured with greater accuracy.

[0048] Figure 6 shows an example of a radio resource grid for the radio resource allocation method (3) for SINR measurement. The assumptions for Figure 6 are the same as those for Figure 4. In allocation method (3), NZP CSI-RS is used for measuring the desired signal, and CSI-IM (Interference-Measurement) is used for measuring the interference signal. Different radio resources are allocated to the NZP CSI-RS for measuring the desired signal and the NZP CSI-RS for measuring the interference signal. Furthermore, if there are multiple interference beams, radio resources are allocated to the NZP CSI-RS on each interference beam so as not to overlap between interference beams. In addition, in a beamset including communication beams and interference beams, if a radio resource is allocated to an NZP CSI-RS on any beam, CSI-IM or ZP (Zero Power) is allocated to the other beams. A CSI-RS is assigned. Therefore, in assignment method (3), an NZP CSI-RS on a given beam is not affected by interference from other beams. As a result, the power of the desired signal and the interference power can be measured with greater accuracy. Note that Precoded interference In some cases, ZP CSI-RS may be used. CSI-IM is an example of a "second signal for interference signal measurement".

[0049] Allocation method (4) differs from allocation method (2) in that SSB is used for measuring the desired signal. Allocation method (5) differs from allocation method (3) in that SSB is used for measuring the desired signal.

[0050] Therefore, the accuracy of the SINR is higher in the order of allocation method (3) or (5) > (2) or (4) > (1). On the other hand, the radio resources and overhead used for SINR measurement increase in the order of allocation method (1) < (4) < (2) < (5) < (3). In the first embodiment, the control device 1 determines which of the allocation methods (1)-(5) to allocate radio resources for SINR measurement according to the prediction of the effect of the interference signal.

[0051] Figure 7 illustrates the hardware configuration of the control device 1. The control device 1 comprises a CPU 101, a main memory 102, an external memory 103, and a communication device 104. The CPU 101 is also called a processor. The CPU 101 is not limited to a single processor and may be a multi-processor configuration. In addition to the CPU 101, Graphics A Processing Unit (GPU), Digital Signal Processor (DSP), etc., may be provided. Furthermore, the CPU 101 may include hardware such as a Field Programmable Gate Array (FPGA). It can also be something that works in conjunction with wearable circuits.

[0052] The CPU 101 executes the computer program that has been loaded into the main memory 102 and provides processing for the control unit 1. The main memory 102 stores the computer program executed by the CPU 101, the data processed by the CPU 101, etc. The main memory 102 is a combination of Dynamic Random Access Memory (DRAM) and Static Random Access Memory. These include SRAM, Read Only Memory (ROM), etc. Furthermore, the external storage device 103 is used, for example, as a storage area that supplements the main memory 102, and stores computer programs executed by the CPU 101, data processed by the CPU 101, etc. The external storage device 103 is a hard disk drive, Solid State Drive (SSD), etc. Furthermore A drive device for a removable storage medium may be connected to the control device 1. Examples of removable storage mediums include Blu-ray discs, Digital Versatile Discs (DVDs), Compact Discs (CDs), and flash memory cards. The CPU 101 is an example of a "control unit" of an "information processing device".

[0053] The communication device 104 communicates with external networks such as distributed base stations and the Internet, for example, via optical fiber. The communication device 104 of the control device 1 may be a single device or a combination of multiple devices. The control device 1 is an example of an "information processing device".

[0054] Figure 8 shows an example of the functional configuration of the control device 1. The control device 1 includes a control unit 11 as part of its functional configuration. The functions of the control unit 11 are achieved by the CPU 101 executing a predetermined program. Although Figure 8 also shows the distributed station information DB 12, the distributed station information DB 12 is a functional component used in the second embodiment and will be described in the second embodiment below.

[0055] The control unit 11 performs beam management processing. More specifically, it performs control of the distributed station and UE 2 in beam selection in S11 and S31 in Figure 2, and the SINR measurement resource determination processing in S12 and S32 in Figure 2. In the SINR measurement resource determination processing, the control unit 11 first acquires information on the communication quality of each beam included in the beam set determined in the beam selection processing. As information on the communication quality of the beam, in the first embodiment, the control unit 11 uses the measured value of the beam's RSRP obtained by UE 2 in the beam management procedure P2 in beam selection, such as in S11 in Figure 2. However, it is not limited to this, and in addition to RSRP, RSSI, RSRQ, and SINR may also be used as information on the communication quality of the beam.

[0056] The control unit 11 predicts the magnitude of the influence of the interference signal on the desired signal based on the measured RSRP of each beam included in the beamset, and determines the wireless resource for SINR measurement from among the allocation methods (1)-(5) depending on the required accuracy of the SINR measurement based on the magnitude of this influence. The magnitude of the influence of the interference signal on the desired signal is expressed as the difference in RSRP between the desired signal and the interference signal. A larger difference in RSRP between the desired signal and the interference signal, that is, a smaller RSRP of the interference signal than the RSRP of the desired signal, indicates that the influence of the interference signal on the desired signal is smaller.

[0057] Therefore, if the influence of the interfering signal on the desired signal is small, i.e., the minimum value of the RSRP difference between the desired signal and each interfering signal is T1dB or greater, the control unit 11 prioritizes saving radio resources over accuracy and selects allocation method (1). If the influence of the interfering signal on the desired signal is large, i.e., the minimum value of the RSRP difference between the desired signal and each interfering signal is less than T2dB, the control unit 11 prioritizes accuracy and selects allocation method (3) or (5). The threshold T1 > T2. If the minimum value of the RSRP difference between the desired signal and each interfering signal is T2dB or greater and less than T1, the control unit 11 considers both accuracy and saving radio resources and selects allocation method (2) or (4).

[0058] In allocation methods (2) or (4), and allocation method (3) or (5), the choice between the two may be based on whether the communication beam is the same beam as the SSB. If the communication beam is the same beam as the SSB, allocation method (4) or (5), which uses the SSB as the signal for measuring the communication beam, may be selected.

[0059] The control unit 11 allocates radio resources to the NZP CSI-RS and CSI-IM or ZP CSI-RS on each beam according to the selected method for allocating radio resources for SINR measurement. The control unit 11 notifies the UE 2 and each distributed station of the allocation of radio resources for each beam. The distributed stations may be notified of the allocation of radio resources for each beam, or only of the allocation of radio resources for the beams transmitted by the distributed stations.

[0060] Figure 9 is an example of a flowchart of the SINR measurement resource determination process of the control device 1 according to the first embodiment. The process shown in Figure 9 is started when, for example, beam selection such as S11 and S31 in Figure 2 is performed. The main entity executing the process shown in Figure 9 is the CPU 101, but for convenience, the functional components will be described as the main components. The same applies to the flowcharts of the control device 1 from Figure 9 onward.

[0061] In OP11, the control unit 11 acquires the measured RSRP values ​​for each beam included in the beamset reported by UE 2 in beam management procedure P2 during beam selection. In OP12, the control unit 11 determines whether the minimum value of the RSRP difference between the communication beam and each interference beam is less than the threshold T1. If the minimum value of the RSRP difference is greater than or equal to the threshold T1 (OP12: NO), the process proceeds to OP14, where the control unit 11 allocates radio resources for SINR measurement according to allocation method (1). If the next transmission timing of the downlink signal of the control plane coincides with the SSB transmission timing for any beam included in the beamset, the control unit 11 decides to use SSB as the measurement signal for that beam. For beams other than those whose next transmission timing of the downlink signal coincides with the SSB transmission timing, the control unit 11 allocates radio resources to CIS-RS as the measurement signal. Otherwise, the control unit 11 allocates CSI-RS wireless resources as measurement signals for any beam included in the beamset according to the allocation method (1).

[0062] If the minimum difference in RSRP is less than the threshold T1 (OP12: YES), the process proceeds to OP13. In OP13, the control unit 11 determines whether there are any interference beams whose RSRP difference with respect to the communication beam is less than the threshold T1, and whether they originate from a different distributed station than the distributed station that transmits the communication beam. When the communication beam and the interference beam originate from the same distributed station, spatial partitioning occurs between the beams, so even if the radio resources for measuring the desired signal and the interference signal are different, the impact on the accuracy of the interference power is small. Therefore, if there are no interference beams whose RSRP difference with respect to the communication beam is less than the threshold T1, and whether they originate from a different distributed station than the distributed station that transmits the communication beam (OP13: NO), the process proceeds. Proceed to OP14. In OP14, the control unit 11 prioritizes saving wireless resources over accuracy and allocates wireless resources for SINR measurement according to allocation method (1).

[0063] If, among the interfering beams whose RSRP difference with the communication beam is less than threshold T1, there are beams transmitted from a distributed station different from the distributed station that transmits the communication beam (OP13:YES), the process proceeds to OP15. In OP15, the control unit 11 determines whether the minimum value of the RSRP difference between the communication beam and each interfering beam is less than threshold T2. If the minimum value of the RSRP difference is less than threshold T2 (OP15:YES), the process proceeds to OP16, where OP16 allocates radio resources for SINR measurement according to allocation method (3) or (5). If the minimum value of the RSRP difference is greater than or equal to threshold T2 and less than threshold T1 (OP15:NO), the process proceeds to OP17, where OP17, the control unit 11 allocates radio resources for SINR measurement according to allocation method (2) or (4).

[0064] After OP14, OP16, and OP17, the process shown in Figure 9 is completed, and the control unit 11 notifies each distributed station and UE 2 of the allocation of radio resources for SINR measurement.

[0065] <Effects of the First Embodiment> In the first embodiment, in distributed MIMO, the method for allocating radio resources for SINR measurement is determined based on the magnitude of the influence of one or more interfering beams on the communication beam, depending on whether accuracy or radio resource conservation is prioritized. Method 2 allows for efficient measurement of SINR while considering the measurement accuracy of SINR and the reduction of radio resources and overhead used.

[0066] <Modification 1 of the first embodiment> In the first embodiment, the method for allocating wireless resources for SINR measurement was determined using the measured RSRP values ​​of all beams included in the beamset determined by beam selection. However, the method for allocating wireless resources for SINR measurement may be determined for only some of the beams included in the beamset.

[0067] In Modification 1 of the First Embodiment, the control device 1 selects interference beams that are suspected of causing interference based on the RSRP of each beam included in the beamset measured in the beam management procedure (P2) in beam selection, as beams to be targeted for determining the allocation method of wireless resources for SINR measurement. Note that communication beams are also included in the beams to be targeted for determining the allocation method of wireless resources for SINR measurement. Interference beams that are suspected of causing interference are, for example, interference beams whose difference from the RSRP of the communication beam is less than the threshold T3, or a predetermined number of interference beams with small differences from the RSRP of the communication beam. The control device 1 transmits an RSRP measurement instruction for the target beam to the UE 2. Subsequently, when the control device 1 receives the RSRP measurement result for the target beam from the UE 2, it determines the allocation method of wireless resources for SINR measurement based on the RSRP measurement result of the target beam, in the same manner as in the First Embodiment.

[0068] Figure 10 is an example of a flowchart of the SINR measurement resource determination process according to Modification 1 of the First Embodiment. The process shown in Figure 10 is started, similar to Figure 9, when beam selection such as S11 and S31 in Figure 2 is performed.

[0069] In OP21, the control unit 11 selects the beam to be measured for RSRP based on the measured RSRP values ​​of each beam included in the beam set reported by UE 2 in beam management procedure P2 during beam selection. In OP22, the control unit 11 sends an instruction to UE 2 to measure the RSRP of the selected beam. In OP23, the control unit 11 determines whether or not it has received the measurement result of the RSRP of the selected beam from UE 2. If the RSRP measurement result for the target beam is received (OP23:YES), the process proceeds to OP24. For example, if the RSRP measurement result for the target beam is not received from UE 2 after a predetermined time has elapsed (OP23:NO), the process proceeds to OP25.

[0070] In OP24, the control unit 11 determines whether the minimum value of the RSRP difference between the communication beam and each interference beam included in the target beam is less than the threshold T1. If the minimum value of the RSRP difference is greater than or equal to the threshold T1 (OP24: NO), the process proceeds to OP25. In OP25, the control unit 11 allocates wireless resources for SINR measurement according to the allocation method (1).

[0071] If the minimum value of the RSRP difference is less than the threshold T1 (OP24:YES), the process proceeds to OP26. In OP26, the control unit 11 determines whether the minimum value of the RSRP difference between the communication beam and each interference beam included in the target beam is less than the threshold T2. If the minimum value of the RSRP difference is less than the threshold T2 (OP26:YES), the process proceeds to OP27, in which the control unit 11 allocates wireless resources for SINR measurement according to allocation method (3) or (5). If the minimum value of the RSRP difference is greater than or equal to the threshold T2 and less than the threshold T1 (OP26:NO), the process proceeds to OP28, in which the control unit 11 allocates wireless resources for SINR measurement according to allocation method (2) or (4).

[0072] After OP25, OP27, and OP28, the process shown in Figure 10 is completed, and the control unit 11 notifies each distributed station and UE 2 of the allocation of radio resources for SINR measurement.

[0073] Figure 11 shows an example of a beam management sequence in Modification 1 of the first embodiment. For simplicity, Figure 11 shows the control device 1 and UE 2. Communication between the control device 1 and UE 2 is performed via a serving distributed station.

[0074] In S111, the control device 1 instructs UE 2 and each distributed station to perform beam selection. In S112, the control device 1 selects a target beam based on the measurement results of the RSRP of each beam included in the beamset during beam selection (Figure 10, OP21). In S113, the control device 1 sends an instruction to UE 2 to measure the RSRP of the target beam (Figure 10, OP22). This instruction also includes, for example, identification information of the distributed base station that transmits the beam, beam identification information, and beam information such as the beam pattern (beam direction and width) for each target beam.

[0075] In S114, UE 2 receives instructions from control unit 1 and measures the RSRP of the target beam. UE 2 measures the RSRP of the target beam using SSB or CSI-RS. In S115, UE 2 transmits the measurement result of the RSRP of the target beam to control unit 1. Control unit 1 receives the measurement result of the RSRP of the target beam from UE 2 (Figure 10, P23: YES).

[0076] In S116, the control unit 1 selects a method for allocating radio resources for SINR measurement based on the RSRP measurement results of the target beam from UE 2, and determines the allocation of radio resources for SINR measurement according to the selected allocation method (Figure 10, OP24-OP28). In S117, the control unit 1 transmits the allocation of radio resources for SINR measurement to UE 2 and each distributed station.

[0077] In Modification 1 of the First Embodiment, the number of target beams used to determine the allocation method for wireless resources for SINR measurement can be reduced. This reduces the processing load on the control device 1 related to the SINR measurement resource determination process. By determining the allocation of wireless resources based on the RSRP measurements in step 2, more appropriate allocations can be made. The beam used to determine the allocation method for wireless resources for SINR measurement is an example of a "second beam".

[0078] <Modification 2 of the first embodiment> In Modification 1 of the First Embodiment, the control device 1 selects the beam to be used for determining the allocation method of SINR measurement resources. Alternatively, in Modification 2 of the First Embodiment, the UE 2 selects the beam to be used for determining the allocation method of SINR measurement resources. In Modification 2 of the First Embodiment, for example, after beam selection, the control device 1 transmits the selection criteria for the target beam and a measurement instruction for the RSRP of the beam to be measured to the UE 2, and receives the measurement result of the RSRP of the target beam from the UE 2. The selection criteria for the target beam may be the same as or different from the selection criteria for the target beam of the control device 1 in Modification 1 of the First Embodiment.

[0079] Therefore, the flowchart for the SINR measurement resource determination process of the control device 1 in Modification 2 of the First Embodiment is similar to, for example, the SINR measurement resource determination process in Modification 1 of the First Embodiment shown in Figure 7, except that the OP21 process is omitted, and in OP22, in addition to the measurement instruction for the RSRP of the target beam, the selection conditions for the target beam are also transmitted.

[0080] Figure 12 shows an example of a beam management sequence in a modified example 2 of the first embodiment. The assumptions in Figure 12 are the same as in Figure 11. In S211, the control device 1 instructs the UE 2 and each distributed station to perform beam selection. In S212, the control device 1 transmits to the UE 2 a measurement instruction for the RSRP of the target beam and the selection conditions for the target beam.

[0081] In S213, UE 2, upon receiving instructions from control unit 1, measures the RSRP of all beams included in the beamset using SSB or CSI-RS. In S213, UE 2 selects a beam as the target beam that meets the selection criteria received from control unit 1. In S215, report data is generated, including the measurement results of the RSRP of the target beam. The report data also includes, for example, identification information for the target beam. Note that the target beam also includes the communication beam.

[0082] In S216, UE 2 transmits report data, including the measurement result of the RSRP of the target beam, to control device 1. Control device 1 receives the measurement result of the RSRP of the target beam from UE 2 (Figure 10, P23: YES).

[0083] In S217, the control unit 1 selects a method for allocating radio resources for SINR measurement based on the RSRP measurement results of the target beam from UE 2, and determines the allocation of radio resources for SINR measurement according to the selected allocation method (Figure 10, OP24-OP28). In S218, the control unit 1 transmits the allocation of radio resources for SINR measurement to UE 2 and each distributed station.

[0084] In the modified version 2 of the first embodiment, UE 2 selects the beam to be used for determining the allocation method of SINR measurement resources, so that part of the processing of the control device 1 can be performed by UE 2, thereby reducing the processing load of the control device 1. Furthermore, since the allocation of wireless resources is determined based on the RSRP measurement value in UE 2, a more appropriate allocation can be made. The beam to be used for determining the allocation method of SINR measurement resources, selected by UE 2, is an example of a "third beam".

[0085] <Second Embodiment> In the second embodiment, the control device 1, based on the location information of each distributed station and UE 2, The estimated RSRP of each beam in 2 is obtained, and the method for allocating wireless resources for SINR measurement is determined using the estimated RSRP of each beam. In the second embodiment, explanations common to the first embodiment are omitted. In the second embodiment, the system configuration of the communication system 100 and the hardware configuration of the control device 1 are the same as in the first embodiment.

[0086] In the second embodiment, the control device 1 includes a distributed station information DB 12 in addition to the control unit 11 as part of its functional configuration. In the first embodiment, when beam selection is performed, the control unit 11 calculates an estimated RSRP at UE 2 for each beam included in the beamset from the position information of each distributed station and UE 2. Using the estimated RSRP of each beam included in the beamset, the control unit 11 determines the method for allocating radio resources for SINR measurement in the same manner as in the first embodiment.

[0087] The location information of the distributed stations is stored in the distributed station information DB 12. The location information of UE 2 may be obtained, for example, by a report from UE 2, or by the control device 1 performing a location estimation. UE 2 can acquire its location information, for example, by a GNSS sensor. The location information report from UE 2 may be sent, for example, as a response to a request from the control device 1 to UE 2, or it may be sent together with the RSRP report in the beam selection beam management procedure (P2).

[0088] The estimated RSRP p^(b_(k,n)) at UE 2 for beam b_(k,n) of beam number k of distributed station n is given by the following equation 1. "p^" indicates the estimated value and is shown with a hat in the figure. The string in parentheses following the underscore is shown as a subscript in the equation and figure.

number

[0089] The transmit power of beam number k of distributed station n may be determined by the control device 1 during beam selection, for example, or a predetermined value stored in the distributed station information DB 12 may be used. The gain of beam number k of distributed station n is predetermined for each beam pattern and is stored, for example, in the distributed station information DB 12. The propagation loss PL_(h_(UE),h_(n)) may be determined using a predetermined function that shows the relationship between distance and received signal power, such that the received signal power decreases as the distance increases.

[0090] The distributed station information DB 12 is created, for example, in the external storage device 103 of the control device 1. The distributed station information DB 12 stores information about each distributed station. The information about distributed stations held in the distributed station information DB 12 includes, for example, the identification information of the distributed station, location information, noise power, and transmission power.

[0091] Figure 13 is an example of a flowchart of the resource determination process for SINR measurement according to the second embodiment. The process shown in Figure 13 is similar to that in Figure 9, for example, S11 and S31 in Figure 2. This process starts when beam selection is performed.

[0092] In OP31, the control unit 11 obtains the location information h_(UE) of UE 2. The location information h_(UE) of UE 2 is obtained, for example, by making a request to UE 2 or by performing location estimation. In OP32, the control unit 11 calculates an estimated RSRP for each beam included in the beamset, for example, according to Equation 1.

[0093] In OP33, the control unit 11 determines whether the minimum difference in estimated RSRP values ​​between the communication beam and each interference beam is less than the threshold T1. If the minimum difference in estimated RSRP values ​​is greater than or equal to the threshold T1 (OP33: NO), the process proceeds to OP34. In OP34, the control unit 11 allocates wireless resources for SINR measurement according to the allocation method (1).

[0094] If the minimum difference in the estimated RSRP values ​​is less than the threshold T1 (OP33:YES), the process proceeds to OP35. In OP35, the control unit 11 determines whether the minimum difference in the estimated RSRP values ​​between the communication beam and each interference beam is less than the threshold T2. If the minimum difference in the estimated RSRP values ​​is less than the threshold T2 (OP35:YES), the process proceeds to OP36, where the control unit 11 allocates radio resources for SINR measurement according to allocation method (3) or (5). If the minimum difference in the estimated RSRP values ​​is greater than or equal to the threshold T2 and less than the threshold T1 (OP35:NO), the process proceeds to OP37, where the control unit 11 allocates radio resources for SINR measurement according to allocation method (2) or (4). After OP34, OP36, and OP37, the process shown in Figure 13 is completed, and the control unit 11 notifies each distributed station and UE 2 of the allocation of radio resources for SINR measurement.

[0095] In the second embodiment, the method for allocating radio resources for SINR measurement is determined based on the estimated RSRP of each beam in UE 2, which is calculated using the location information of the distributed stations and UE 2. For example, if the location information of UE 2 is also estimated and acquired by the control device 1, the control device 1 can perform the SINR measurement resource determination process by itself, thereby reducing overhead.

[0096] In the second embodiment, as in Modification 1 of the first embodiment, the target beams for determining the allocation method of radio resources for SINR measurement may be narrowed down based on the estimated RSRP of each beam. In the second embodiment, the propagation loss of beam number k of distributed station n is not limited to being estimated based on the position information of distributed station n and UE 2, but for example, propagation characteristics between distributed station n and UE 2 may be obtained in beam estimation and estimated using said propagation characteristics.

[0097] <Other Embodiments> The embodiments described above are merely examples, and this disclosure may be modified as appropriate without departing from its essence.

[0098] Although the first and second embodiments were described assuming a distributed MIMO system, the application of the technology of this disclosure is not limited to distributed MIMO systems. The technology of this disclosure can be applied when interference occurs from signals from multiple base stations or multiple antennas and it is desired to measure the interference power at a certain point.

[0099] In the first and second embodiments, the method for allocating wireless resources for SINR measurement is to use thresholds T1 and T2 for the minimum difference in RSRP between the communication beam and each interference beam, and to use allocation method (1), allocation method (2) or (4), and allocation method ( 3) and (5) are selected, but are not limited to these. For example, the allocation method for wireless resources for SINR measurement may be selected from allocation method (1) and allocation method (2) or (4) using only the threshold T1. For example, the allocation method for wireless resources for SINR measurement may be selected from allocation method (1) and allocation method (3) or (5) using only the threshold T1.

[0100] The processing of the control device 1 in the first and second embodiments may be performed by any of the base stations among the distributed stations, or by any of the relay stations if the signal to UE 2 is relayed by one or more relay stations. Furthermore, if the signal to UE 2 is relayed by one or more relay stations, the relay station may perform the same processing on the transmission point as UE 2 in the first and second embodiments.

[0101] Furthermore, the processes and means described in this disclosure can be freely combined and implemented, provided that no technical inconsistencies arise.

[0102] Furthermore, processes described as being performed by a single device may be divided and executed by multiple devices. Conversely, processes described as being performed by different devices may be executed by a single device. In a computer system, the hardware configuration (server configuration) by which each function is implemented can be flexibly changed.

[0103] The present disclosure can also be realized by supplying a computer program implementing the functions described in the embodiments above to a computer, and having one or more processors in the computer read and execute the program. Such a computer program may be provided to the computer by a non-temporary computer-readable storage medium that can be connected to the computer's system bus, or it may be provided to the computer via a network. The non-temporary computer-readable storage medium includes any type of disk, such as magnetic disks (floppy disks, hard disk drives (HDDs), etc.), optical disks (CD-ROMs, DVDs, Blu-ray discs, etc.), read-only memory (ROM), random access memory (RAM), EPROM, EEPROM, magnetic cards, flash memory, or optical cards, and any other type of medium suitable for storing electronic instructions. [Explanation of Symbols]

[0104] 1. Control device 2··UE 11. Control Unit 12...Distributed station information DB 100. Communication System 101··CPU 102...Main memory 103...External storage device 104. Communication device

Claims

1. Computers To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, Based on the relationship between the communication beams included in the plurality of beams and one or more other first beams, as indicated by the communication quality information for the plurality of beams, the wireless resources for measuring interference signals by the receiving device are allocated. How to do it.

2. The aforementioned computer, Based on the information regarding the communication quality of the plurality of beams, a first value indicating the relationship between the communication beam and the one or more first beams is obtained. Based on the relationship between the first value and a first threshold indicating that the influence of the signals on the one or more first beams on the signal on the communication beam is small, a determination is made as to whether or not to allocate a first radio resource for measuring interference signals. The method according to claim 1.

3. The aforementioned computer, If the first value is greater than or equal to the first threshold, the first wireless resource is not allocated, and the receiving device is instructed to measure the interference signal using the signal allocated to the same wireless resource for all of the multiple beams. If the first value is less than the first threshold, the first wireless resource is assigned to a first signal for measuring communication quality on each of the one or more first beams, which is different from the signal used for measuring communication quality on the communication beam. The method according to claim 2.

4. The aforementioned computer, If the first value is less than a second threshold which is smaller than the first threshold, then in a radio resource to which the first signal is assigned on one of the multiple beams, the other beams are assigned either the first signal with no zero power or the second signal for interference signal measurement. The method according to claim 3.

5. The aforementioned computer, As information regarding the communication quality, the measured value of the received signal power by the receiving device is acquired. As the first value, the difference between the measured value of the received signal power of the communication beam and one of the one or more first beams is obtained. The method according to claim 2.

6. The aforementioned computer, As information regarding the communication quality, an estimated value of the received signal power in the receiving device is obtained. As the first value, the difference between the estimated value of the received signal power of the communication beam and one of the one or more first beams is obtained. The method according to claim 2.

7. The aforementioned computer, As information regarding the communication quality, an estimated value of the received signal power in the receiving device is obtained based on the positional information of the receiving device and one or more transmitting points that are the sources of the multiple beams. The method according to claim 6.

8. The aforementioned computer, Further, the process involves selecting one or more second beams from the one or more first beams such that the information regarding the communication quality satisfies predetermined conditions. For the one or more second beams, the first value is obtained. The method according to claim 2.

9. The aforementioned computer, Transmitting to the receiving device a predetermined condition and an instruction to measure the received signal power of one or more third beams and the communication beam, wherein the information regarding the communication quality satisfies the predetermined condition. The receiving device receives the measured value of the received signal power of the one or more third beams and the communication beam. Furthermore, For the one or more third beams, the first value is obtained. The method according to claim 5.

10. The aforementioned computer, The allocation of the aforementioned wireless resources is notified to the receiving device and to one or more transmitting points that are the sources of the multiple beams. The method according to claim 1.

11. To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, Based on the relationship between the communication beams included in the plurality of beams and one or more other first beams, as indicated by the communication quality information for the plurality of beams, the wireless resources for measuring interference signals by the receiving device are allocated. A control unit that executes An information processing device equipped with the following features.

12. The control unit, Based on the information regarding the communication quality of the plurality of beams, a first value indicating the relationship between the communication beam and the one or more first beams is obtained. Based on the relationship between the first value and a first threshold indicating that the influence of the signals on the one or more first beams on the signal on the communication beam is small, a determination is made as to whether or not to allocate a first radio resource for measuring interference signals. The information processing apparatus according to claim 11.

13. The control unit, If the first value is greater than or equal to the first threshold, the first wireless resource is not allocated, and the receiving device is instructed to measure the interference signal using the signal allocated to the same wireless resource for all of the multiple beams. If the first value is less than the first threshold, the first wireless resource is assigned to a first signal for measuring communication quality on each of the one or more first beams, which is different from the signal used for measuring communication quality on the communication beam. The information processing apparatus according to claim 12.

14. The control unit, If the first value is less than a second threshold which is smaller than the first threshold, then in a radio resource to which the first signal is assigned on one of the multiple beams, the other beams are assigned either the first signal with no zero power or the second signal for interference signal measurement. The information processing apparatus according to claim 13.

15. The control unit, As information regarding the communication quality, the measured value of the received signal power by the receiving device is acquired. As the first value, the difference between the measured value of the received signal power of the communication beam and one of the one or more first beams is obtained. The information processing apparatus according to claim 12.

16. The control unit, As information regarding the communication quality, an estimated value of the received signal power in the receiving device is obtained. As the first value, the difference between the estimated value of the received signal power of the communication beam and one of the one or more first beams is obtained. The information processing apparatus according to claim 12.

17. The control unit, As information regarding the communication quality, an estimated value of the received signal power in the receiving device is obtained based on the positional information of the receiving device and one or more transmitting points that are the sources of the multiple beams. The information processing apparatus according to claim 16.

18. The control unit, Further, the process involves selecting one or more second beams from the one or more first beams such that the information regarding the communication quality satisfies predetermined conditions. For the one or more second beams, the first value is obtained. The information processing apparatus according to claim 12.

19. The control unit, The receiving device is to transmit to it the following: information regarding the communication quality is a predetermined condition, and the information regarding the communication quality is an instruction to measure the received signal power of one or more third beams that satisfy the predetermined condition and the communication beam. The receiving device receives the measured value of the received signal power of the one or more third beams and the communication beam. Furthermore, For the one or more third beams, the first value is obtained. The information processing apparatus according to claim 15.

20. On the computer, To acquire information regarding the communication quality of multiple beams used for communication by the receiving device, Based on the relationship between the communication beams included in the plurality of beams and one or more other first beams, as indicated by the communication quality information for the plurality of beams, the wireless resources for measuring interference signals by the receiving device are allocated. A program to execute.

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