Method, information processing device, and program

Abstract

The present disclosure improves efficiency of measurement of interference power of a plurality of beams. A computer executes: acquiring information relating to communication quality for a plurality of beams used for communication of a reception-side device; and performing allocation of radio resources relating to measurement of an interference signal by the reception-side device, on the basis of a relationship indicated by the information relating to the communication quality for the plurality of beams, between a communication beam included in the plurality of beams and one or a plurality of first beams other than the communication beam.

Description

Method, information processing device, and program

[0001] This disclosure relates to beam management in wireless communications.

[0002] In wireless communication such as 5th Generation Mobile Communication Systems (5G), distributed MIMO (Multi-Input Multi-Output) has been proposed, in which communication is performed by selecting one or more antennas near the mobile station from among multiple antennas distributed within the communication area of ​​a single base station. According to distributed MIMO, by distributing the antennas, dead spots for radio waves can be reduced and the influence of obstacles can be mitigated.

[0003] In systems using multiple transmitting antennas, such as distributed MIMO, the mobile station communicates using beams designated by the network-side control unit. The radio signal strength transmitted by the beams changes over time due to the mobile station's movement and changes in the surrounding environment. Therefore, the mobile station periodically measures the received signal strength of multiple beams, including the data communication beam, for each radio frame or slot, and reports the measurement results to the network-side control unit. One example of beam received signal strength is RSRP (Reference Signal Received Power), which is the received power using a reference signal. A reference signal is a signal intended to measure the radio wave propagation environment. Based on the measurement results from the mobile station, the control unit re-selects the more appropriate beam pattern for each of the multiple beams, including the data communication beam, in accordance with the mobile station's movement and changes in the surrounding environment. This allows the mobile station to be provided with a data communication beam that can provide better quality wireless communication each time, in response to the mobile station's movement and changes in the surrounding environment. In short, a beam pattern is the direction and width of the beam.

[0004] However, since the RSRP may include the power of interference signals in addition to the power of the desired signal, the signal quality may not be indicated with high precision. Therefore, it has been proposed that a mobile station measure the SINR (signal-to-interference-plus-noise power ratio) of a beam pattern instead of the RSRP (for example, Non-Patent Document 1).

[0005] 3GPP TSG-RAN WG1 Meeting #117 R1-2404746 (2024-05-20)3GPP TR 38.802 V14.2.0 (2017-09)3GPP TS 38.214 V18.2.0 (2024-03)

[0006] One aspect of the present disclosure is to provide a method, an information processing apparatus, and a program capable of improving the efficiency of measuring the interference power of a plurality of beams.

[0007] 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-side apparatus, and based on a relationship indicated by the information regarding the communication quality for the plurality of beams between a communication beam included in the plurality of beams and one or more first beams other than the communication beam, allocates radio resources related to measurement of an interference signal by the receiving-side apparatus.

[0008] Another aspect of the present disclosure is an information processing apparatus including a control unit that acquires information regarding communication quality for a plurality of beams used for communication of a receiving-side apparatus, and based on a relationship indicated by the information regarding the communication quality for the plurality of beams between a communication beam included in the plurality of beams and one or more first beams other than the communication beam, allocates radio resources related to measurement of an interference signal by the receiving-side apparatus.

[0009] Another aspect of the present disclosure is a program for causing a computer to perform the following actions: acquire information regarding the communication quality of a plurality of beams used for communication in a receiving device; and allocate 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.

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

[0012] One aspect of the present disclosure is a method by which a computer performs the following actions: acquires information regarding the communication quality of a plurality of beams used for communication in a 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 plurality of beams and one or more other first beams, based on the information regarding the communication quality of 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, measured or estimated values ​​of the received signal strength (RSRP), RSSI (Received Signal Strength Indicator), RSRQ (Reference Signal Received Quality), and the signal-to-interference plus noise ratio (SINR).

[0015] In one aspect of this disclosure, the allocation of radio resources for measuring interference signals is performed based on the relationship between the communication beam and other beams, as indicated by information regarding communication quality, thereby improving the efficiency of interference signal measurement. "Improved efficiency in measuring interference signals" 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 a plurality of 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, for example, be 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 the received signal power by the receiving device, the first value may be the difference in the measured value of the 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 the 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 the 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 or not the influence of one or more signals on first beams 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 a first threshold, the computer may not allocate the first radio resource and instead have the receiving device measure the interference signal using the signal allocated to the same radio resource for all of the beams. In other words, if it is shown that the influence of one or more signals on the first beams on the signals 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. The signal allocated to the same radio resource for all of the beams is, for example, in LTE, LTE-Advanced, and 5G and later mobile communication systems, a non-zero power CSI-RS (Channel State Information Reference Signal) or SSB (SS / PBCH (Synchronization Signals and 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, the radio resources for the signal on the communication beam and the interference signals on the other first beams are separated, and the measurement of communication quality is also separated. As a result, the receiving device can 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 is a distributed MIMO system including user equipment (UE) 2, a control device 1, and a plurality of distributed base stations. The communication system 100 is a wireless communication system of mobile communication methods such as 5G, LTE (Long Term Evolution), and 6G or later. The control device 1 is a device on the core network to which the distributed base stations are connected. However, it can also be considered that the control device 1 is the core network itself, or a system included in the core network. The core network includes, for example, an optical fiber network. The control device 1 controls the distributed base stations and the UE 2.

[0026] The distributed base stations, together with other distributed base stations within the same communication area, provide a wireless access network to UE 2 located within that communication area. The three distributed base stations (RU#1 to #3) shown in Figure 1 are assumed to be located within the same communication area. Each distributed base station is connected to the control unit 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, for example, 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). Distributed base station RU#1 transmits three beams: b0, b1, and b2. Distributed base station RU#1 is also represented as the transmitting points m_(0), m_(1), and m_(2) of beams b0, b1, and b2. The characters after the underscore or in parentheses are shown as subscripts in the figure. Distributed base station RU#2 transmits two beams: b3 and b4. Distributed base station RU#3 transmits two beams: b5 and b6. 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 the designation of 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 determines whether or not to report the measurement results of communication quality to the control device 1 based on the SINR of the multiple beams. Therefore, the control device 1 allocates radio resources for measuring interference signals for the multiple beams from each distributed station so that UE 2 can measure SINR more efficiently.

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

[0033] In S11, the control device 1 performs beam selection. In beam selection, a beamset including a communication beam and a measurement beam, and the communication beam are determined. In S11, the control device 1 causes distributed station #1, distributed station #2, and UE 2 to execute beam management procedures P1-P3, for example, as disclosed in 6.1.6.1 Beam management of 3GPP TR 38.802 V14.2.0 (2017-09). 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 narrows the coverage area (width of each beam) and performs a beam sweep on multiple different beams. The UE receives signals from the multiple beams with narrowed beamwidths with a wide beamwidth, measures the RSRP of the reference signal for each beam, and reports it to the transmitting point. The 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 period using the beam with the best RSRP. The UE determines which beam can be received with a better RSRP while receiving with multiple beams. 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 at 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 may also be 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 in UE 2. In the SINR measurement resource determination process, the control device 1 determines whether to allocate different radio resources to the signal for measuring the communication beam and the signal for measuring 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 notifies each distributed station and UE 2 of the beamset, communication beam, and allocation of radio resources for SINR measurement. The notification to UE 2 is sent via distributed station #1, which is the serving base station (S14). Thereafter, each distributed station transmits a measurement signal using the allocated radio resources at the same time (due to distributed MIMO).

[0039] In S21, UE 2 measures the SINR and RSRP, etc., for the beams included in the notified beamset. In S22, UE 2 determines whether or not to report to the 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 the control device 1. However, the conditions for determining whether or not to report to the control device 1 are not limited to this. If it is determined that a report should be made to the control device 1, the process proceeds to S23, in which case the control device 1 creates report data including the RSRP, etc., for each beam. If it is determined that a report should not be made to the control device 1, the process proceeds to S21, and the beams are measured again. In S24, UE 2 sends the report data to the 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. The allocation methods (1)-(5) shown in Figure 3 are examples of methods for allocating wireless resources for SINR measurement. First, the allocation methods are divided into (1) and (2)-(3) depending on whether or not IMR (Interference Management Resources), a wireless resource for measuring interference signals, is used.

[0042] Figure 4 shows an example of a radio resource grid for the SINR measurement allocation method (1). 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 the measurement signals on the communication beam and the measurement signals on the interference beam. Furthermore, the measurement signals on the communication beam and the measurement signals on the interference beam are allocated to the same radio resource. The radio resource to which the measurement signals are allocated 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 in UE 2. UE 2 measures SINR using the separated signals.

[0044] However, when only NZP CSI-RS is used in the allocation method (1), the desired signal and the interference signal are the same signal, and the signal for measurement on a certain beam is interfered by the signal for measurement on other beams. Therefore, the measurement accuracy of the received signal power of the signal for measurement on a certain beam tends to be low. However, in the allocation method (1), since IMR is not used, radio resources can be saved.

[0045] On the other hand, SSB is a signal defined as being essential to be transmitted at a predetermined period, and CSI-RS is not an essential signal. Therefore, for example, when the timing of transmitting CSI-RS and the transmission timing of SSB overlap on a certain beam, by using SSB as a measurement signal without allocating radio resources to CIS-RS on the beam, there is no need to separately allocate radio resources for measurement on the beam, and radio resources can be saved more. Hereinafter, the signal on the communication beam is referred to as the desired signal. The signal on the interference beam is referred to as the interference signal. The power of the interference signal is referred to as the interference power. CSI-RS is an example of the "first signal".

[0046] FIG. 5 is an example of a radio resource grid of the allocation method (2) of radio resources for SINR measurement. The premise of FIG. 5 is the same as that of FIG. 4. In the allocation methods (2)-(5), the allocated radio resources are different for the desired signal and the interference signal. In the allocation method (2), NZP CSI-RS is used for the signal for measuring the desired signal, and NZP CSI-RS is used for the signal 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. When there are multiple interference beams, radio resources may be allocated to the NZP CSI-RS on each interference beam so as not to overlap between the interference beams, or radio resources may be allocated to the NZP CSI-RS on each interference beam with overlap between some or all of the interference beams. The radio resource allocated to the NZP CSI-RS for measuring the desired signal becomes CMR. The radio resource allocated to the NZP CSI-RS for measuring the interference signal becomes IMR.

[0047] In the allocation method (2), for the radio resources to which NZP CSI-RS is allocated on any one of the beams including the communication beam and the interference beam, signals such as data are allocated on other beams. Therefore, the NZP CSI-RS on a certain beam is interfered with by the signals on other beams. However, unlike the allocation method (1), since the NZP CSI-RS on a certain beam and the signals on other beams are different signals, the influence of interference is reduced, and the power of the desired signal and the interference power can be measured more accurately.

[0048] FIG. 6 is an example of a radio resource grid of the allocation method (3) of radio resources for SINR measurement. The premise of FIG. 6 is the same as that of FIG. 4. In the 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. Also, when there are multiple interference beams, radio resources are allocated to the NZP CSI-RS on each interference beam so that there is no overlap between the interference beams. Furthermore, in a beam set including a communication beam and an interference beam, for the radio resources allocated to NZP CSI-RS on any one of the beams, CSI-IM or ZP (Zero Power) CSI-RS is allocated on other beams. Therefore, in the allocation method (3), the NZP CSI-RS on a certain beam is not interfered with by other beams. Therefore, the power of the desired signal and the interference power can be measured more accurately. In the case of Precoded interference, ZP CSI-RS may be used. CSI-IM is an example of "the second signal for measuring the interference signal".

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

[0050] Therefore, the accuracy of SINR is higher in the order of allocation method (3) or (5) > (2) or (4) > (1). On the other hand, the wireless 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) to (5) to allocate wireless 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 includes 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, a Graphics Processing Unit (GPU), Digital Signal Processor (DSP), etc., may also be provided. Furthermore, the CPU 101 may be linked with hardware circuits such as a Field Programmable Gate Array (FPGA).

[0052] The CPU 101 executes a computer program that has been loaded into the main memory 102 in an executable format, and provides processing to the control device 1. The main memory 102 stores the computer program executed by the CPU 101, data processed by the CPU 101, etc. The main memory 102 is a Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Read Only Memory (ROM), etc. Furthermore, the external storage device 103 is used as a storage area that assists the main memory 102, and stores the computer program 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. Removable storage mediums are, for example, Blu-ray discs, Digital Versatile Discs (DVDs), Compact Discs (CDs), flash memory cards, etc. 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 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 RSRP of the beam by UE 2, which is acquired in the beam management procedure P2 in beam selection, such as 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 a wireless resource for SINR measurement from among the allocation methods (1) to (5) depending on the required accuracy of 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 between the RSRP of the desired signal and the interference signal. A larger difference between the RSRP of 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 interference signal on the desired signal is small, i.e., the minimum value of the RSRP difference between the desired signal and each interference signal is T1 dB or greater, the control unit 11 prioritizes saving radio resources over accuracy and selects allocation method (1). If the influence of the interference signal on the desired signal is large, i.e., the minimum value of the RSRP difference between the desired signal and each interference signal is less than T2 dB, 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 interference signal is T2 dB 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, for example, when 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, when allocating radio resources for SINR measurement according to allocation method (1), 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 is less than the threshold T1 that are transmitted from a different distributed station than the distributed station that transmits the communication beam. When the communication beam and the interference beam are transmitted 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 is less than the threshold T1 that are transmitted from a different distributed station than the distributed station that transmits the communication beam (OP13: NO), the process proceeds to OP14. In OP14, the control unit 11 prioritizes saving radio resources over accuracy and allocates radio resources for SINR measurement according to the 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 the control unit 11 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 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 interference beams on the communication beam, depending on whether accuracy or saving radio resources is prioritized. This allows UE 2 to efficiently measure 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 beam set 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 with the RSRP of the communication beam is less than the threshold T3, or a predetermined number of interference beams with small differences with the RSRP of the communication beam. The control device 1 transmits an RSRP measurement instruction for the target beam to the UE 2. Thereafter, 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 measurement result of the RSRP of the selected beam is received from UE 2 (OP23: YES), the process proceeds to OP24. For example, if the measurement result of the RSRP of the selected beam is not received from UE 2 even 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 in the 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 device 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 device 1. Control device 1 receives the measurement result of the RSRP of the target beam from UE 2 (Figure 10, P23: YES).

[0076] In S116, the control device 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 device 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 SINR measurement wireless resources can be reduced. This reduces the processing load on the control device 1 related to the SINR measurement resource determination process. 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 target beams used to determine the allocation method for SINR measurement wireless resources are 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. Instead, 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 conditions for the target beam and the 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 conditions for the target beam may be the same as or different from the selection conditions 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 the modified example 2 of the first embodiment is similar to the SINR measurement resource determination process in the modified example 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 for Figure 12 are the same as those for 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 device 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 satisfies the selection criteria received from control device 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 of 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 the control device 1. The 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 device 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 device 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 on 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 obtains an estimated value of the RSRP of each beam in the UE 2 based on the position information of each distributed station and the UE 2, and determines a method for allocating radio resources for SINR measurement using the estimated value of the 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 obtains an estimated value of 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 values ​​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 location estimation. UE 2 can acquire location information, for example, by a GNSS sensor. The location information report from UE 2 may be transmitted, for example, as a response to a request from the control device 1 to UE 2, or it may be transmitted together with the RSRP report in the beam selection beam management procedure (P2).

[0088] The estimated RSRP p^(b_(k,n)) in 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 over "p" in the figure. The string in parentheses following the underscore is shown as a subscript in the equation and figure. P_(tx) is the transmit power of beam number k of distributed station n. G_(b_(k,n)) is the gain of beam number k of distributed station n. h_(UE) is the position information of UE 2. h_(n) is the position information of distributed station n. PL_(h_(UE),h_(n)) is the propagation loss determined by the positions of distributed station n and UE 2. In Equation 1, the units of beam transmit power, gain, and propagation loss are all dB.

[0089] The transmission 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 SINR measurement resource determination process according to the second embodiment. The process shown in Figure 13 is started, similar to Figure 9, when beam selection such as S11 and S31 in Figure 2 is performed.

[0092] In OP31, the control unit 11 acquires the position information h_(UE) of UE 2. The position information h_(UE) of UE 2 is acquired, for example, by making a request to UE 2 or by performing position estimation. In OP32, the control unit 11 calculates an estimated value of 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 control device 1 also estimates and acquires the location information of UE 2, 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 was selected from allocation methods (1), (2) or (4), and (3) and (5) using thresholds T1 and T2 for the minimum difference in RSRP between the communication beam and each interference beam, but is not limited thereto. For example, the method for allocating wireless resources for SINR measurement may be selected from allocation methods (1) and (2) or (4) using only threshold T1. For example, the method for allocating wireless resources for SINR measurement may be selected from allocation methods (1) and (3) or (5) using only 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, a process described as being performed by a single device may be divided and executed by multiple devices. Conversely, a process 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 type of medium suitable for storing electronic instructions.

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

Claims

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. 　 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. 　 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 the first signal for measuring the communication quality on each of the one or more first beams, which is different from the signal used for measuring the communication quality on the communication beam. The method according to claim 2. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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 the first signal for measuring the communication quality on each of the one or more first beams, which is different from the signal used for measuring the communication quality on the communication beam. The information processing apparatus according to claim 12. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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. 　 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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