JP5723719B2 - Interference control system, interference control apparatus, terminal, and interference control program - Google Patents

Description

  The present invention relates to an interference control system, an interference control device, a terminal, and an interference control program in wireless communication.

  In mobile communication systems in Japan, third-generation mobile communication systems represented by W-CDMA (Wideband Code Division Multiple Access) and CDMA2000 (Code Division Multiple Access 2000) are widespread. “LTE (Long Term Evolution)” which is one of the standards of 3GPP (Third Generation Partnership Project) is known as an advancement of the third generation mobile communication system and its next generation system (see Non-Patent Document 1). ).

  In recent years, 3GPP has been studying “LTE-Advanced”, which is a more advanced LTE. Among them, a heterogeneous network (HetNet) is being studied to improve area quality by using small and inexpensive local nodes such as pico base stations and femto base stations, aiming for rapid area deployment at low cost. Be active.

  In HetNet, since the pico base station and the femto base station are mixed in the area of the macro base station, the amount of interference between the cells increases, but the throughput can be greatly improved by appropriate interference control. it can. In 3GPP, as an interference control technique in HetNet, time division multiplexing (TDM) type interference control (see Non-Patent Document 2), in which interference control is performed in units of subframes (Sub-Frame: SF), Carrier aggregation (CA) -based interference control (see Non-Patent Document 3) in which interference control is performed on the frequency axis using a component carrier (CC) has been studied.

3GPP, TS36.201, “Evolved Universal Terrestrial Radio Access (E-UTRA); LTE physical layer; General description”, V9.1.0, Mar. 2010. 2 Konishi et al., “Performance Evaluation of Downlink in HetNet with Pico Stations Using TDM Interference Control Techniques,” B-5-73, IEICE, Mar. 2011. Fushiki et al., “Comparison of downlink performance for interference control methods for mixed pico stations HetNet,” B-5-48, Shingaku Tsuso, Sep. 2011.

  By the way, in the interference control based on carrier aggregation (CA-based interference control), the interference control carrier is stopped by operating the interference control carrier with lower transmission power than the non-interference control carrier. Compared with, downlink communication capacity can be improved. Also, with CA-based interference control, different downlink transmission power setting values can be reported for each carrier, so that the terminal can correctly estimate the coupling loss even when the carrier is operated with low transmission power.

  On the other hand, in TDM type interference control, when the interference control subframe and the non-interference control subframe are switched in a time division manner within the same carrier, means for notifying the downlink transmission power from the base station to the terminal is a carrier. There is only one hit. For this reason, when the interference control subframe is transmitted with lower transmission power than the non-interference control subframe, the terminal can perform coupling loss only for either the interference control subframe or the non-interference control subframe. Cannot be estimated correctly. If the coupling loss cannot be correctly estimated, the terminal cannot appropriately determine the uplink transmission power. In addition, since uplink communication cannot be established unless uplink transmission power is appropriately determined, the interference control system cannot operate an interference control subframe with low transmission power. For this reason, there is a problem that the interference control system cannot improve the downlink communication capacity.

  The present invention has been made in view of the above points, and improves downlink communication capacity in an interference control system of a mobile communication system that time-division-multiplexes interference control subframes and non-interference control subframes. An object of the present invention is to provide an interference control system, an interference control device, a terminal, and an interference control program.

  The present invention has been made in order to solve the above-described problem. In an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe, an interference control subframe is provided. A subset management unit that stores a subset pattern indicating the transmission order of frames and non-interference control subframes, information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and non-interference A power management unit that stores information indicating second transmission power, which is downlink transmission power for transmitting a control subframe, in association with an interference control subframe and a non-interference control subframe; and the first transmission A downlink transmission power message generation unit for generating a message indicating power and a message indicating the second transmission power; and the subset pattern A pattern message generating unit for generating a message indicating a message, a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern, the first transmission power and the second A transmission unit that transmits the transmission power according to the subset pattern, an interference control apparatus, a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern. A receiving unit that receives from the transmitting unit, a message that indicates the first transmission power, a downlink transmission power message detection unit that detects a message that indicates the second transmission power, and a pattern that detects a message that indicates the subset pattern A sub-frame for interference control received by the message detector and the receiver; Is detected based on the message indicating the subset pattern, the first transmission power is selected, and the non-interference control subframe received by the receiving unit is determined based on the message indicating the subset pattern. The second transmission power is selected, the power and subset management unit, the first reception power that is the reception power of the interference control subframe, and the second reception power that is the reception power of the interference control subframe. When the first transmission power is selected by the measurement unit that measures received power and the power and subset management unit, the coupling loss based on the first transmission power and the first reception power is calculated, and When the second transmission power is selected by the power and subset management unit, coupling based on the second transmission power and the second reception power is performed. A terminal comprising: a coupling loss calculation unit that calculates a gross; and an uplink transmission power calculation unit that calculates an uplink transmission power based on the coupling loss calculated by the coupling loss calculation unit. It is the feature interference control system.

  The present invention also relates to an interference control system for a mobile communication system that performs time division multiplexing of an interference control subframe and a noninterference control subframe, and sets the transmission order of the interference control subframe and the noninterference control subframe. A subset management unit that stores a subset pattern to be indicated; information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe; and downlink transmission power for transmitting the non-interference control subframe. A power management unit that stores information indicating the second transmission power associated with the subframe for interference control and the subframe for non-interference control, a message indicating the first transmission power, and the second transmission power A downlink transmission power message generator for generating a message indicating the pattern, and a pattern message for generating a message indicating the subset pattern. A message generation unit, a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern according to the subset pattern with the first transmission power and the second transmission power. An interference control apparatus comprising: a transmission unit configured to transmit the transmission unit;

  The present invention also provides downlink transmission power for transmitting an interference control subframe in an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe. A message indicating one transmission power, a message indicating a second transmission power that is a downlink transmission power for transmitting a non-interference control subframe, and a transmission order of the interference control subframe and the non-interference control subframe. To transmit a message indicating a subset pattern to be received, a message indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and a non-interference control subframe. A downlink transmission power message detection unit for detecting a message indicating the second transmission power, which is the downlink transmission power, and an interference control sub A pattern message detector for detecting a message indicating a subset pattern indicating the transmission order of a frame and a non-interference control subframe, and an interference control subframe received by the receiver based on the message indicating the subset pattern When detected, the first transmission power is selected, and when the non-interference control subframe received by the receiving unit is detected based on a message indicating the subset pattern, the second transmission power is selected. A power and subset management unit, a first reception power that is reception power of the interference control subframe, and a measurement unit that measures second reception power that is reception power of the interference control subframe; and the power and When the first transmission power is selected by the subset manager, the first transmission power and the first reception power are selected. A cup that calculates a coupling loss based on the second transmission power and the second reception power when the coupling loss based on the power is calculated and the second transmission power is selected by the power and subset management unit A terminal comprising: a ring loss calculation unit; and an uplink transmission power calculation unit that calculates uplink transmission power based on the coupling loss calculated by the coupling loss calculation unit.

  The present invention also relates to an interference control system for a mobile communication system that performs time division multiplexing of an interference control subframe and a noninterference control subframe, and sets the transmission order of the interference control subframe and the noninterference control subframe. The subset management unit that selects the interference control subframe or the non-interference control subframe, and the downlink transmission power for transmitting the interference control subframe are stored as the target to calculate the coupling loss. Corresponding information indicating the first transmission power and information indicating the second transmission power, which is the downlink transmission power for transmitting the non-interference control subframe, to the interference control subframe and the non-interference control subframe And a power management unit that stores the information in association with the subframe for interference control selected by the subset management unit. A downlink transmission power message generating unit that generates a message indicating the first transmission power or a message indicating the second transmission power associated with the non-interference control subframe selected by the subset management unit; A pattern message generator for generating a message indicating a subset pattern, and a message indicating an interference control subframe selected by the subset manager, or a message indicating a non-interference control subframe selected by the subset manager A message indicating the first transmission power or a message indicating the second transmission power, a message indicating the subset pattern, a message indicating an interference control subframe, or a non-interference control subframe A message indicating a frame; A transmission unit configured to transmit the transmission power and the second transmission power according to the subset pattern, an interference control device, a message indicating the first transmission power or a message indicating the second transmission power, and the subset pattern , A message indicating an interference control subframe or a message indicating a non-interference control subframe from the transmitter, a message indicating the first transmission power, or the second A downlink transmission power message detection unit that detects a message indicating transmission power, a pattern message detection unit that detects a message indicating the subset pattern, a first reception power that is reception power of a subframe for interference control, and interference control A measurement unit for measuring the second received power, which is the received power of the subframe for use, and an interference control support An instruction message detector that detects a message indicating a subframe for non-interference control or a message indicating an interference control subframe is detected by the instruction message detector; When a coupling loss based on power and the first received power is calculated, and a message indicating a non-interference control subframe is detected by the instruction message detection unit, the second transmission power and the second received power are calculated. A coupling loss calculation unit that calculates a coupling loss based on the uplink transmission power calculation unit that calculates uplink transmission power based on the coupling loss calculated by the coupling loss calculation unit, An interference control system comprising:

  The present invention also relates to an interference control system for a mobile communication system that performs time division multiplexing of an interference control subframe and a noninterference control subframe, and sets the transmission order of the interference control subframe and the noninterference control subframe. The subset management unit that selects the interference control subframe or the non-interference control subframe, and the downlink transmission power for transmitting the interference control subframe are stored as the target to calculate the coupling loss. Corresponding information indicating the first transmission power and information indicating the second transmission power, which is the downlink transmission power for transmitting the non-interference control subframe, to the interference control subframe and the non-interference control subframe And a power management unit that stores the information in association with the subframe for interference control selected by the subset management unit. A downlink transmission power message generating unit that generates a message indicating the first transmission power or a message indicating the second transmission power associated with the non-interference control subframe selected by the subset management unit; A pattern message generator for generating a message indicating a subset pattern, and a message indicating an interference control subframe selected by the subset manager, or a message indicating a non-interference control subframe selected by the subset manager A message indicating the first transmission power or a message indicating the second transmission power, a message indicating the subset pattern, a message indicating an interference control subframe, or a non-interference control subframe A message indicating a frame; A transmission section for transmitting in response to the subset pattern by the transmission power and the second transmission power is an interference controller, characterized in that it comprises a.

  The present invention also provides downlink transmission power for transmitting an interference control subframe in an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe. Transmission order of a message indicating one transmission power or a message indicating the second transmission power, which is a downlink transmission power for transmitting a non-interference control subframe, and a subframe for interference control and a subframe for non-interference control A receiver that receives a message indicating a subset pattern indicating a message, a message indicating a subframe for interference control or a message indicating a subframe for non-interference control, and a message indicating the first transmission power, or the second A downlink transmission power message detector for detecting a message indicating transmission power, and a message indicating the subset pattern. A pattern message detector that detects sage, a first receiver power that is received power of the interference control subframe, and a second receiver power that is received power of the interference control subframe, and interference control When an instruction message detecting unit that detects a message indicating a subframe for use or a message indicating a subframe for non-interference control and a message indicating an interference control subframe are detected by the instruction message detecting unit, the first A coupling loss based on transmission power and the first reception power is calculated. On the other hand, when a message indicating a non-interference control subframe is detected by the instruction message detection unit, the second transmission power and the second reception are detected. Coupling loss calculation unit for calculating coupling loss based on electric power, and the coupling loss calculation unit Based on the coupling loss is more calculated, a terminal, characterized in that it comprises an uplink transmit power calculation unit, a calculating uplink transmission power.

  The present invention also relates to an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe, for transmitting the interference control subframe to a computer of the interference control apparatus. Generating a message indicating the first transmission power that is the downlink transmission power and a message indicating the second transmission power that is the downlink transmission power for transmitting the non-interference control subframe, an interference control sub A procedure for generating a message indicating a subset pattern indicating the transmission order of frames and non-interference control subframes, a message indicating the first transmission power, a message indicating the second transmission power, and the subset pattern A message is transmitted according to the subset pattern with the first transmission power and the second transmission power. And procedures that are interference control program for execution.

  Further, the present invention provides an downlink control for transmitting an interference control subframe to a terminal computer in an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe. A message indicating the first transmission power that is the transmission power, a message indicating the second transmission power that is the downlink transmission power for transmitting the non-interference control subframe, the interference control subframe, and the non-interference control subframe. A procedure for receiving a message indicating a subset pattern indicating the transmission order of frames; a procedure for detecting a message indicating the first transmission power; a message indicating the second transmission power; and a message indicating the subset pattern. And a received interference control subframe is a message indicating the subset pattern. The first transmission power is selected, and when the received non-interference control subframe is detected based on a message indicating the subset pattern, the second transmission power is The procedure of selecting, the procedure of measuring the first received power that is the received power of the subframe for interference control, and the second received power that is the received power of the subframe for interference control, and the first transmitted power are selected. The coupling loss based on the first transmission power and the first reception power is calculated, and the cup based on the second transmission power and the second reception power is selected when the second transmission power is selected. Interference for executing a procedure for calculating ring loss and a procedure for calculating uplink transmission power based on the coupling loss calculated by the coupling loss calculator Is your program.

  Further, the present invention is an interference control system of a mobile communication system that time-division multiplexes an interference control subframe and a non-interference control subframe. A procedure for selecting a subframe for interference control or a subframe for noninterference control, a message indicating the first transmission power associated with the selected subframe for interference control, or a selected subframe for noninterference control A procedure for generating a message indicating the second transmission power associated with a frame; a procedure for generating a message indicating the subset pattern; a message indicating a selected interference control subframe; A procedure for generating a message indicating a subframe for interference control, and a message or message indicating the first transmission power. A message indicating the second transmission power, a message indicating the subset pattern, a message indicating an interference control subframe, or a message indicating a non-interference control subframe, the first transmission power and the second transmission power And the procedure of transmitting according to the subset pattern.

  Further, the present invention provides an downlink control for transmitting an interference control subframe to a terminal computer in an interference control system of a mobile communication system that performs time division multiplexing of an interference control subframe and a non-interference control subframe. A message indicating the first transmission power, which is transmission power, or a message indicating the second transmission power, which is the downlink transmission power for transmitting the non-interference control subframe, the subframe for interference control, and the non-interference control A procedure for receiving a message indicating a subset pattern indicating the transmission order of subframes, a message indicating an interference control subframe or a message indicating a non-interference control subframe, and a message indicating the first transmission power, or , Detecting a message indicating the second transmission power, and a message indicating the subset pattern. A pattern message detection unit for detecting a signal, a first reception power that is a reception power of an interference control subframe, a procedure for measuring a second reception power that is a reception power of an interference control subframe, and an interference control When detecting a message indicating a subframe or a message indicating a non-interference control subframe, and a message indicating an interference control subframe by the instruction message detection unit, the first transmission power and the A coupling loss based on the first received power is calculated. On the other hand, when a message indicating a non-interference control subframe is detected by the instruction message detection unit, a cup based on the second transmitted power and the second received power is detected. Based on the procedure for calculating the ring loss and the coupling loss calculated by the coupling loss calculator A interference control program for executing the steps of calculating the uplink transmit power, the.

  According to the present invention, in an interference control system of a mobile communication system that time-division multiplexes an interference control subframe and a non-interference control subframe, a coupling loss calculation unit includes the first transmission power and the first transmission power. At least one of a coupling loss based on received power and a coupling loss based on the second transmission power and the second received power is calculated. Thereby, the interference control system can appropriately determine the uplink transmission power and improve the downlink communication capacity.

It is a figure showing the 1st structural example of the interference control system in 1st Embodiment of this invention. It is an example of the management table which shows a response | compatibility with a sub-frame subset and downlink transmission power in 1st Embodiment of this invention. It is a figure showing the 2nd structural example of the interference control system in 2nd Embodiment of this invention.

[First Embodiment]
A first embodiment of the present invention will be described in detail with reference to the drawings. In a mobile communication system that performs time division multiplexing (TDM) on an interference control subframe and a non-interference control subframe, the interference control system reduces the transmission power of the interference control subframe transmitted by the macro base station. As a result, the downlink communication capacity (throughput) is improved. Further, the interference control system provides a stable mobile communication system by appropriately determining uplink transmission power.

  FIG. 1 shows a first configuration example of the interference control system. The interference control system includes an interference control device 100a and a terminal 200a. The interference control device 100a is provided in, for example, a macro base station.

First, the configuration of the interference control device 100a will be described.
The interference control device 100a includes a subset management unit 110a, a power management unit 120a, a downlink transmission power message generation unit 130, a pattern message generation unit 140, a modulation unit 150, a D / A conversion unit 160, and an amplification unit 170. With.

  The subset management unit 110a stores in advance information indicating a subframe subset and manages a pattern of the subframe subset (for example, AABAB...). Here, the pattern is information indicating the transmission order. Hereinafter, the description will be continued assuming that the subframe subset includes an interference control subframe A and a non-interference control subframe B. Note that the subframe subset need not be limited to these two subsets.

  Also, the subset management unit 110a outputs information indicating a subframe subset pattern (hereinafter referred to as “subset pattern”) to the power management unit 120a and the pattern message generation unit 140.

  Information indicating the subset pattern is input to the power management unit 120a from the subset management unit 110a. Moreover, the power management unit 120a stores the downlink transmission power setting value T in advance in the management table for each subframe subset. Here, the downlink transmission power is, for example, the transmission power of a cell reference signal (CRS) transmitted from the macro base station to the terminal.

  FIG. 2 shows an example of a management table indicating the correspondence between subframe subsets and downlink transmission power. Hereinafter, as an example, it is assumed that information indicating the downlink transmission power T (A) is associated with the interference control subframe A by the management table. In addition, information indicating downlink transmission power T (B) is associated with the non-interference control subframe B by the management table.

  The power management unit 120a repeatedly detects whether the subframe subset to be amplified next time by the amplification unit 170 is the interference control subframe A or the non-interference control subframe B based on the information indicating the subset pattern. .

  When the subframe subset to be amplified next time by the amplification section 170 is the interference control subframe A, the power management section 120a manages information indicating the downlink transmission power T (A) corresponding to the interference control subframe A. Based on the table (see FIG. 2), the data is output to the downlink transmission power message generator 130 and the amplifier 170.

  On the other hand, when the subframe subset to be amplified next time by the amplification section 170 is the non-interference control subframe B, the power management section 120a is information indicating the downlink transmission power T (B) corresponding to the non-interference control subframe B. Is output to the downlink transmission power message generation unit 130 and the amplification unit 170 based on the management table (see FIG. 2).

  The downlink transmission power message generation unit 130 receives information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) for each subframe subset that the amplification unit 170 amplifies next time for power management. Input from the unit 120a.

  Here, when information indicating the downlink transmission power T (A) is input, the downlink transmission power message generation unit 130 converts the information indicating the downlink transmission power T (A) into a control message by a predetermined method. Then, the converted control message is output to the modulation unit 150. On the other hand, when information indicating the downlink transmission power T (B) is input, the downlink transmission power message generation unit 130 converts the information indicating the downlink transmission power T (B) into a control message using a predetermined method. The converted control message is output to modulation section 150.

  In this way, the downlink transmission power message generator 130 converts both the information indicating the downlink transmission power T (A) and the information indicating the downlink transmission power T (B) into a control message by a predetermined method. The converted control message is output to the modulation unit 150.

  Information indicating the subset pattern is input to the pattern message generator 140 from the subset manager 110a. The pattern message generation unit 140 converts information indicating the subset pattern into a control message by a predetermined method, and outputs the converted control message to the modulation unit 150.

  Various control messages are input to the modulation unit 150. For example, as described above, the modulation unit 150 includes a control message obtained by converting information indicating the downlink transmission power T (A) or a control message obtained by converting information indicating the downlink transmission power T (B). For each subframe subset to be amplified next time by the amplification unit 170, it is input from the downlink transmission power message generation unit 130. For example, as described above, the control message obtained by converting the information indicating the subset pattern is input to the modulation unit 150 from the pattern message generation unit 140.

  Modulator 150 modulates the input control message into a digital radio signal, and outputs the modulated digital radio signal to D / A converter 160. Modulation section 150 modulates the cell reference signal into a digital radio signal and outputs the modulated digital radio signal to D / A conversion section 160.

  The D / A conversion unit 160 converts the digital signal input from the modulation unit 150 into an analog signal, and outputs the converted analog signal to the amplification unit 170.

  The converted analog signal is input from the D / A converter 160 to the amplifier 170. In addition, information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) is supplied to the amplification unit 170 for each subframe subset that the amplification unit 170 amplifies next time. It is input from.

  Here, when the information indicating the downlink transmission power T (A) is input, the amplifying unit 170 amplifies (amplifies output) the analog signal so that the downlink transmission power becomes the downlink transmission power T (A), and amplifies it. An analog signal is wirelessly transmitted to the terminal 200a. On the other hand, when information indicating the downlink transmission power T (B) is input, the amplification unit 170 amplifies (adjusts the output of) the analog signal so that the downlink transmission power becomes the downlink transmission power T (B), and the amplified analog The signal is wirelessly transmitted to the terminal 200a through the antenna of the own device.

Next, the configuration of the terminal 200a will be described.
The terminal 200a includes an amplification unit 210, an A / D conversion unit 220, a demodulation unit 230, a downlink transmission power message detection unit 240a, a pattern message detection unit 250a, a measurement unit 260, a power and subset management unit 270, , A coupling loss calculation unit 280a and an uplink transmission power calculation unit 290 are provided.

  The amplifying unit 210 receives the analog signal wirelessly transmitted via the amplifying unit 170 of the interference control apparatus 100a via the antenna of the own terminal, and after reducing noise included in the received analog signal, Transfer to the A / D converter 220. The A / D converter 220 converts the analog signal with reduced noise into a digital signal, and outputs the converted digital signal to the demodulator 230.

  Demodulation section 230 demodulates the digital signal converted by A / D conversion section 220 into logical information, and outputs the demodulated logical information to downlink transmission power message detection section 240a, pattern message detection section 250a, and measurement section 260. . Note that the demodulator 230 may output the demodulated logic information to other various detectors (not shown).

  The downlink transmission power message detection unit 240a extracts the control message from the input logical information, thereby indicating whether the extracted control message indicates the downlink transmission power T (A) or the downlink transmission power T (B). Detect.

  Here, when the extracted control message indicates the downlink transmission power T (A), the downlink transmission power message detection unit 240a outputs information indicating the downlink transmission power T (A) to the power and subset management unit 270. On the other hand, when the extracted control message indicates the downlink transmission power T (B), the downlink transmission power message detection unit 240a outputs information indicating the downlink transmission power T (B) to the power and subset management unit 270.

  In this way, downlink transmission power message detection section 240a outputs both information indicating downlink transmission power T (A) and information indicating downlink transmission power T (B) to power and subset management section 270. .

  The pattern message detection unit 250a detects information indicating the subset pattern by extracting a control message from the input logical information. Further, the pattern message detection unit 250a displays information indicating the detected subset pattern, that is, information indicating whether the received subframe is the interference control subframe A or the non-interference control subframe B, the power and The data is output to the subset management unit 270 and the measurement unit 160.

  Information indicating the subset pattern is input to the measurement unit 260 from the pattern message detection unit 250a. The logical information demodulated by the demodulator 230 is input from the demodulator 230 to the measurement unit 260. The measurement unit 260 extracts the cell reference signal from the input logical information, and measures the received power of the cell reference signal for each subframe subset based on the information indicating the subset pattern. In addition, measurement section 260 outputs measurement information indicating the received power of the cell reference signal measured for each subframe subset to coupling loss calculation section 280a in association with the subframe subset.

  Hereinafter, the received power of the cell reference signal transmitted by the interference control subframe A is denoted as R (A). Also, the received power of the cell reference signal transmitted in the non-interference control subframe B is denoted as R (B).

  Information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) is input to the power and subset management unit 270 from the downlink transmission power message detection unit 240a for each subframe subset. . In this way, both the information indicating the downlink transmission power T (A) and the information indicating the downlink transmission power T (B) are input to the power and subset management unit 270 from the downlink transmission power message detection unit 240a. Is done.

  Information indicating the subset pattern is input to the power and subset management unit 270 from the pattern message detection unit 250a. The power and subset management unit 270 detects a subframe subset for which a coupling loss is to be calculated based on information indicating the subset pattern. Also, the power and subset management unit 270 detects information indicating the downlink transmission power T of the subframe subset for which the coupling loss is calculated based on the management table (see FIG. 2).

  Here, when the subframe subset whose coupling loss is to be calculated is the interference control subframe A, the power and subset management unit 270 stores information indicating the downlink transmission power T (A) in the management table. Based on this, it outputs to the coupling loss calculation part 280a. On the other hand, when the subframe subset whose coupling loss is to be calculated is the non-interference control subframe B, the power and subset management unit 270 stores information indicating the downlink transmission power T (B) in the management table. Based on this, it outputs to the coupling loss calculation part 280a.

  Information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) is input from the power and subset management unit 270 to the coupling loss calculation unit 280a. In addition, measurement information indicating reception power R (A) of the cell reference signal and measurement information indicating reception power R (B) of the cell reference signal are input from the measurement unit 260 to the coupling loss calculation unit 280a. The

  When the information indicating the interference control subframe A is input, the coupling loss calculation unit 280a performs coupling by subtracting the downlink transmission power T (A) from the reception power R (A) of the cell reference signal. Loss L (A) (= received power value R (A) of cell reference signal−downlink transmission power T (A)) is calculated (estimated), and information indicating the coupling loss L (A) is calculated as uplink transmission power. Output to the unit 290.

  On the other hand, when information indicating the non-interference control subframe B is input, the coupling loss calculation unit 280a subtracts the downlink transmission power T (B) from the reception power R (B) of the cell reference signal. , Coupling loss L (B) (= received power R (B) of cell reference signal−downlink transmission power T (B)) is calculated (estimated), and information indicating the coupling loss L (B) is transmitted in uplink. It outputs to the electric power calculation part 290.

  Information indicating the coupling loss L (A) or information indicating the coupling loss L (B) is input to the uplink transmission power calculation unit 290 from the coupling loss calculation unit 280a. Therefore, both the information indicating the coupling loss L (A) and the information indicating the coupling loss L (B) are input to the uplink transmission power calculating unit 290 from the coupling loss calculating unit 280a.

  When the information indicating the coupling loss L (A) is input, the uplink transmission power calculating unit 290 determines an appropriate uplink transmission power value based on the coupling loss L (A) by a predetermined method. calculate. On the other hand, when information indicating the coupling loss L (B) is input, the uplink transmission power calculating unit 290 determines an appropriate uplink transmission power value based on the coupling loss L (B) in advance. Calculate by the method.

  Accordingly, the predetermined data is wirelessly transmitted from the terminal 200a to the macro base station via the uplink with an appropriate uplink transmission power calculated by the uplink transmission power calculation unit 290.

As described above, in the interference control system of the mobile communication system that time-division-multiplexes the interference control subframe and the noninterference control subframe, the interference control system includes the interference control subframe and the noninterference control subframe. A subset management unit 110a that stores a subset pattern indicating the transmission order of information, information indicating the first transmission power that is downlink transmission power for transmitting the interference control subframe, and a non-interference control subframe. A power management unit 120a that stores information indicating second transmission power, which is downlink transmission power, for each of the interference control subframe and the non-interference control subframe, and a message indicating the first transmission power, and , A downlink transmission power message generator 130 for generating a message indicating the second transmission power, and the subset pattern A message indicating the first transmission power, a message indicating the second transmission power and a message indicating the subset pattern, and a message indicating the subset pattern. Interference control including an antenna (transmission unit), a modulation unit 150 (transmission unit), a D / A conversion unit 160 (transmission unit), and an amplification unit 170 (transmission unit) that transmit according to the subset pattern with two transmission powers An apparatus (receiver) that receives the device 100a, a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern from the amplification unit 170 (transmission unit), and an amplification unit 210 (reception unit), A / D conversion unit 220 (reception unit), demodulation unit 230 (reception unit), and a mem- ber indicating the first transmission power. Received by a downlink transmission power message detection unit 240a for detecting a message indicating a message and the second transmission power, a pattern message detection unit 250a for detecting a message indicating the subset pattern, and an amplification unit 170 (reception unit). When the interference control subframe is detected based on the message indicating the subset pattern, the first transmission power is selected, and the noninterference control subframe received by the amplification unit 170 (reception unit) is selected. When the detection is made based on the message indicating the subset pattern, the power and subset management unit 270 selects the second transmission power, the first reception power that is the reception power of the subframe for interference control, and the interference control. A measurement unit 260 that measures the second received power that is the received power of the subframe for power, and the power When the first transmission power is selected by the subset management unit 270, a coupling loss based on the first transmission power and the first reception power is calculated, and the second transmission is performed by the power and subset management unit 270. When power is selected, a coupling loss calculator 280a that calculates a coupling loss based on the second transmission power and the second received power, and a coupling loss calculated by the coupling loss calculator 280a. And an uplink transmission power calculation unit 290 that calculates uplink transmission power.
With this configuration, the coupling loss calculation unit includes at least one of the coupling loss based on the first transmission power and the first reception power, and the coupling loss based on the second transmission power and the second reception power. One is calculated. Thereby, the interference control system can improve the downlink communication capacity (throughput) that appropriately determines the uplink transmission power. The interference control system can provide a stable mobile communication system.

[Second Embodiment]
The second embodiment is different from the first embodiment in that a message is used for the interference control apparatus to instruct a terminal of a subframe subset for which a coupling loss is to be calculated. Only the differences from the first embodiment will be described below.

  FIG. 3 shows a second configuration example of the interference control system. The interference control system includes an interference control device 100b and a terminal 200b. The interference control device 100b is provided in, for example, a macro base station.

First, the configuration of the interference control device 100b will be described.
The interference control device 100b includes a subset management unit 110b, a power management unit 120b, a downlink transmission power message generation unit 130, a pattern message generation unit 140, a modulation unit 150, a D / A conversion unit 160, and an amplification unit 170. And an instruction message generation unit 180. Here, the subset management unit 110b corresponds to the subset management unit 110a in the first embodiment. The power management unit 120b corresponds to the power management unit 120a in the first embodiment.

  The subset management unit 110a outputs information indicating the subset pattern to the power management unit 120b and the pattern message generation unit 140. In addition, the subset management unit 110b has either one of information indicating the interference control subframe A or information indicating the non-interference control subframe B as the subframe subset for which the terminal 200b calculates the coupling loss. Is output to the power management unit 120b and the instruction message generation unit 180.

  Here, when the interference control subframe A is predetermined as the subframe subset for which the terminal 100b calculates the coupling loss, the subset management unit 110b only provides information indicating the interference control subframe A. Is output to the power management unit 120b and the instruction message generation unit 180. On the other hand, when the non-interference control subframe B is predetermined as the subframe subset for which the terminal 200b calculates the coupling loss, the subset management unit 110b includes information indicating the non-interference control subframe B. Are output to the power management unit 120b and the instruction message generation unit 180.

  The power management unit 120b includes information indicating the subframe A for interference control or information indicating the subframe B for non-interference control as information indicating the subframe subset for which the terminal 100b calculates the coupling loss. Only one of them is input from the subset management unit 110b. In this way, power management section 120b outputs only one of information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) to downlink transmission power message generation section 130. .

  Only one of the information indicating the downlink transmission power T (A) or the information indicating the downlink transmission power T (B) is input from the power management unit 120b to the downlink transmission power message generation unit 130. Thus, downlink transmission power message generation section 130 controls only one of information indicating downlink transmission power T (A) or information indicating downlink transmission power T (B) by a predetermined method. The message is converted into a message, and the converted control message is output to modulation section 150.

  The instruction message generation unit 180 includes either information indicating the interference control subframe A or information indicating the non-interference control subframe B as the subframe subset for which the terminal 100b calculates the coupling loss. Only from the subset manager 110b.

  Here, when the information indicating the interference control subframe A is input, the instruction message generation unit 180 converts the information indicating the interference control subframe A into a control message by a predetermined method and converts the information. The control message is output to modulation section 150. On the other hand, when the information indicating the non-interference control subframe B is input, the instruction message generation unit 170 converts the information indicating the non-interference control subframe B into a control message by a predetermined method, The control message is output to the modulation unit 150.

  In this way, the instruction message generation unit 180 converts only one of the information indicating the interference control subframe A or the information indicating the non-interference control subframe B into a control message by a predetermined method. Then, the converted control message is output to the modulation unit 150.

Next, the configuration of the terminal 200b will be described.
The terminal 200b includes an amplification unit 210, an A / D conversion unit 220, a demodulation unit 230, a downlink transmission power message detection unit 240b, a pattern message detection unit 250b, a measurement unit 260, and a coupling loss calculation unit 280b. The instruction message detection unit 285 and the uplink transmission power calculation unit 290 are provided.

  Here, the downlink transmission power message detection unit 240b corresponds to the downlink transmission power message detection unit 240a in the first embodiment. The pattern message detection unit 250b corresponds to the pattern message detection unit 250a in the first embodiment. The coupling loss calculation unit 280b corresponds to the coupling loss calculation unit 280a in the first embodiment.

  The downlink transmission power message detection unit 240b extracts the control message from the input logical information, thereby indicating whether the extracted control message indicates the downlink transmission power T (A) or the downlink transmission power T (B). Detect.

  When the extracted control message indicates the downlink transmission power T (A), the downlink transmission power message detection unit 240b outputs information indicating the downlink transmission power T (A) to the coupling loss calculation unit 280b. On the other hand, when the extracted control message indicates the downlink transmission power T (B), the downlink transmission power message detection unit 240b outputs information indicating the downlink transmission power T (B) to the coupling loss calculation unit 280b.

  In this way, the downlink transmission power message detection unit 240b sends only one of information indicating the downlink transmission power T (A) or information indicating the downlink transmission power T (B) to the coupling loss calculation unit 280b. Output.

  The pattern message detection unit 250b extracts information indicating the subset pattern by extracting a control message from the input logical information, and outputs information indicating the detected subset pattern to the measurement unit 260.

  The instruction message detection unit 285 receives demodulated logic information from the demodulation unit 230. The instruction message detection unit 285 detects information indicating a subframe subset for which the terminal 100b calculates a coupling loss by extracting a control message from the input logical information, and indicates the detected subframe subset. The information is output to the coupling loss calculation unit 280b.

  In this way, the instruction message detection unit 285 outputs only one of the information indicating the interference control subframe A and the information indicating the non-interference control subframe B to the coupling loss calculation unit 280b.

  Only one of the information indicating the downlink transmission power T (A) or the information indicating the downlink transmission power T (B) is input from the downlink transmission power message detection unit 240b to the coupling loss calculation unit 280b. The coupling loss calculation unit 280b includes measurement information indicating the measured received power R (A) of the cell reference signal and measurement information indicating the measured received power R (B) of the cell reference signal. 260 is input. Further, only one of the information indicating the interference control subframe A and the information indicating the non-interference control subframe B is input from the instruction message detection unit 285 to the coupling loss calculation unit 280b.

  In this way, the coupling loss calculation unit 280b outputs only one of information indicating the coupling loss L (A) or information indicating the coupling loss L (B) to the uplink transmission power calculation unit 290. To do. For example, when the information indicating the interference control subframe A is input from the instruction message detection unit 285, the coupling loss calculation unit 280b determines the downlink transmission power T (A) from the reception power R (A) of the cell reference signal. To calculate (estimate) the coupling loss L (A) (= received power value R (A) of the cell reference signal−downlink transmission power T (A)), and calculate the coupling loss L (A). Only the indicated information is output to uplink transmission power calculation section 290. The same applies to the coupling loss L (B).

  Accordingly, the predetermined data is wirelessly transmitted from the terminal 200b to the macro base station via the uplink with an appropriate uplink transmission power calculated by the uplink transmission power calculation unit 290.

As described above, in the interference control system of the mobile communication system that time-division-multiplexes the interference control subframe and the noninterference control subframe, the interference control system includes the interference control subframe and the noninterference control subframe. To transmit the interference control subframe and the subset management unit 110b that selects the interference control subframe or the non-interference control subframe as a target for calculating the coupling loss. The information indicating the first transmission power that is the downlink transmission power and the information indicating the second transmission power that is the downlink transmission power for transmitting the non-interference control subframe, the subframe for interference control and the non-interference control Selected by the power management unit 120b and the subset management unit 110b that store the sub-frames in association with each other. Generate a message indicating the first transmission power associated with the subframe for interference control or a message indicating the second transmission power associated with the subframe for non-interference control selected by the subset management unit 110b A downlink transmission power message generator 130, a pattern message generator for generating a message indicating the subset pattern, and a message indicating an interference control subframe selected by the subset manager 110b or selected by the subset manager 110b An instruction message generation unit 180 for generating a message indicating the subframe for non-interference control, a message indicating the first transmission power or a message indicating the second transmission power, a message indicating the subset pattern, and interference control Message indicating the subframe for Or a message indicating a non-interference control subframe according to the subset pattern with the first transmission power and the second transmission power, a modulation unit 150 (transmission unit), D / A conversion unit 160 (transmission unit) and amplification unit 170 (transmission unit), an interference control device 100b, a message indicating the first transmission power or a message indicating the second transmission power, and the subset pattern An antenna (reception unit), an amplification unit 210 (reception unit), and A that receive a message indicating an interference control subframe or a message indicating a non-interference control subframe from the amplification unit 170 (transmission unit). / D converter 220 (receiver) and demodulator 230 (receiver), a message indicating the first transmission power, or a message indicating the second transmission power. A downlink transmission power message detection unit 240b that detects a message, a pattern message detection unit 250b that detects a message indicating the subset pattern, a first reception power that is a reception power of an interference control subframe, and an interference control sub A measurement unit 260 that measures the second received power that is the received power of the frame; an instruction message detection unit 285 that detects a message indicating an interference control subframe or a message indicating a non-interference control subframe; and an instruction message When a message indicating a subframe for interference control is detected by the detection unit 285, a coupling loss based on the first transmission power and the first reception power is calculated, while the instruction message detection unit 285 is used for non-interference control. When a message indicating a subframe is detected, the second transmission is performed. A coupling loss calculation unit 280b that calculates the coupling loss based on the power and the second received power, and an uplink transmission power calculation that calculates the uplink transmission power based on the coupling loss calculated by the coupling loss calculation unit 280b A terminal 200b having a unit 290.
With this configuration, the coupling loss calculation unit includes at least one of the coupling loss based on the first transmission power and the first reception power, and the coupling loss based on the second transmission power and the second reception power. One is calculated. Thereby, the interference control system can improve the downlink communication capacity (throughput) that appropriately determines the uplink transmission power. The interference control system can provide a stable mobile communication system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

  A program for realizing the interference control system, interference control base station, and interference control terminal described above is recorded on a computer-readable recording medium, and the program is read into a computer system and executed. Also good. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

100a and 110b ... interference control device, 110a and 110b ... subset management unit, 120a and 120b ... power management unit, 130 ... downlink transmission power message generation unit, 140 ... pattern message generation unit, 150 ... modulation unit (transmission unit), 160 ... D / A converter (transmitter), 170 ... amplifier (transmitter), 180 ... instruction message generator, 210 ... amplifier (receiver), 220 ... A / D converter (receiver), 230 ... Demodulator (receiver), 240a and 240b ... downlink transmission power message detector, 250a and 250b ... pattern message detector, 260 ... measurement unit, 270 ... power and subset manager, 280a and 280b ... coupling loss calculator, 285 ... Instruction message detection unit, 290 ... Uplink transmission power calculation unit

Claims (10)

In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
A subset management unit for storing a subset pattern indicating a transmission order of the interference control subframe and the non-interference control subframe;
Information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and information indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe, A power management unit storing the interference control subframe and the non-interference control subframe in association with each other;
A downlink transmission power message generator for generating a message indicating the first transmission power and a message indicating the second transmission power;
A pattern message generator for generating a message indicating the subset pattern;
A transmission unit that transmits a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern according to the subset pattern with the first transmission power and the second transmission power. When,
An interference control device comprising:
A receiving unit that receives a message indicating the first transmission power and a message indicating the second transmission power and a message indicating the subset pattern from the transmission unit;
A downlink transmission power message detection unit that detects a message indicating the first transmission power and a message indicating the second transmission power;
A pattern message detector for detecting a message indicating the subset pattern;
When the interference control subframe received by the reception unit is detected based on the message indicating the subset pattern, the first transmission power is selected, and the noninterference control subframe received by the reception unit is selected. A power and subset manager that selects the second transmission power when a frame is detected based on a message indicating the subset pattern;
A measurement unit that measures the first received power that is the received power of the subframe for interference control and the second received power that is the received power of the subframe for non- interference control;
When the first transmission power is selected by the power and subset management unit, a coupling loss based on the first transmission power and the first reception power is calculated, and the second is calculated by the power and subset management unit. When transmission power is selected, a coupling loss calculator that calculates a coupling loss based on the second transmission power and the second reception power;
Based on the coupling loss calculated by the coupling loss calculator, an uplink transmission power calculator that calculates uplink transmission power;
A terminal having
An interference control system comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
A subset management unit for storing a subset pattern indicating a transmission order of the interference control subframe and the non-interference control subframe;
Information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and information indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe, A power management unit storing the interference control subframe and the non-interference control subframe in association with each other;
A downlink transmission power message generator for generating a message indicating the first transmission power and a message indicating the second transmission power;
A pattern message generator for generating a message indicating the subset pattern;
A transmission unit that transmits a message indicating the first transmission power and a message indicating the second transmission power, and a message indicating the subset pattern according to the subset pattern with the first transmission power and the second transmission power. When,
An interference control apparatus comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
A message indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and a message indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe; A receiving unit that receives a message indicating a subset pattern indicating a transmission order of the interference control subframe and the non-interference control subframe;
A message indicating a first transmission power that is a downlink transmission power for transmitting an interference control subframe and a message indicating a second transmission power that is a downlink transmission power for transmitting a non-interference control subframe are detected. A downstream transmission power message detection unit,
A pattern message detector that detects a message indicating a subset pattern indicating the transmission order of the interference control subframe and the non-interference control subframe;
When the interference control subframe received by the reception unit is detected based on the message indicating the subset pattern, the first transmission power is selected, and the noninterference control subframe received by the reception unit is selected. A power and subset manager that selects the second transmission power when a frame is detected based on a message indicating the subset pattern;
A measurement unit that measures the first received power that is the received power of the subframe for interference control and the second received power that is the received power of the subframe for non- interference control;
When the first transmission power is selected by the power and subset management unit, a coupling loss based on the first transmission power and the first reception power is calculated, and the second is calculated by the power and subset management unit. When transmission power is selected, a coupling loss calculator that calculates a coupling loss based on the second transmission power and the second reception power;
Based on the coupling loss calculated by the coupling loss calculator, an uplink transmission power calculator that calculates uplink transmission power;
A terminal comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
A subset management unit that stores a subset pattern indicating the transmission order of interference control subframes and non-interference control subframes, and selects an interference control subframe or a noninterference control subframe as a target for calculating a coupling loss. When,
Information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and information indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe, A power management unit storing the interference control subframe and the non-interference control subframe in association with each other;
A message indicating the first transmission power associated with the subframe for interference control selected by the subset manager, or the first associated with the subframe for non-interference control selected by the subset manager. A downlink transmission power message generation unit that generates a message indicating two transmission powers;
A pattern message generator for generating a message indicating the subset pattern;
An instruction message generating unit that generates a message indicating an interference control subframe selected by the subset management unit, or a message indicating a non-interference control subframe selected by the subset management unit;
A message indicating the first transmission power or a message indicating the second transmission power; a message indicating the subset pattern; a message indicating an interference control subframe or a message indicating a non-interference control subframe; A transmission unit configured to transmit according to the subset pattern with one transmission power and the second transmission power;
An interference control device comprising:
A message indicating the first transmission power or a message indicating the second transmission power; a message indicating the subset pattern; a message indicating an interference control subframe or a message indicating a non-interference control subframe; A receiving unit for receiving from the unit;
A downlink transmission power message detector that detects a message indicating the first transmission power or a message indicating the second transmission power;
A pattern message detector for detecting a message indicating the subset pattern;
A measurement unit that measures the first received power that is the received power of the subframe for interference control and the second received power that is the received power of the subframe for non- interference control;
An instruction message detector that detects a message indicating a subframe for interference control or a message indicating a subframe for non-interference control;
When a message indicating an interference control subframe is detected by the instruction message detection unit, a coupling loss based on the first transmission power and the first reception power is calculated, and on the other hand, non-interference is performed by the instruction message detection unit. When a message indicating a control subframe is detected, a coupling loss calculation unit that calculates a coupling loss based on the second transmission power and the second reception power;
Based on the coupling loss calculated by the coupling loss calculator, an uplink transmission power calculator that calculates uplink transmission power;
A terminal having
An interference control system comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
A subset management unit that stores a subset pattern indicating the transmission order of interference control subframes and non-interference control subframes, and selects an interference control subframe or a noninterference control subframe as a target for calculating a coupling loss. When,
Information indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and information indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe, A power management unit storing the interference control subframe and the non-interference control subframe in association with each other;
A message indicating the first transmission power associated with the subframe for interference control selected by the subset manager, or the first associated with the subframe for non-interference control selected by the subset manager. A downlink transmission power message generation unit that generates a message indicating two transmission powers;
A pattern message generator for generating a message indicating the subset pattern;
An instruction message generating unit that generates a message indicating an interference control subframe selected by the subset management unit, or a message indicating a non-interference control subframe selected by the subset management unit;
A message indicating the first transmission power or a message indicating the second transmission power; a message indicating the subset pattern; a message indicating an interference control subframe or a message indicating a non-interference control subframe; A transmission unit configured to transmit according to the subset pattern with one transmission power and the second transmission power;
An interference control apparatus comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
First message indicating the transmission power is a downlink transmit power for transmitting the interference control subframe, or a message indicating a second transmission power is a downlink transmit power for transmitting the non-interference control subframe, A receiving unit that receives a message indicating a subset pattern indicating a transmission order of the interference control subframe and the non-interference control subframe, and a message indicating the interference control subframe or a message indicating the noninterference control subframe; ,
A downlink transmission power message detector that detects a message indicating the first transmission power or a message indicating the second transmission power;
A pattern message detector for detecting a message indicating the subset pattern;
A measurement unit that measures the first received power that is the received power of the subframe for interference control and the second received power that is the received power of the subframe for non- interference control;
An instruction message detector that detects a message indicating a subframe for interference control or a message indicating a subframe for non-interference control;
When a message indicating an interference control subframe is detected by the instruction message detection unit, a coupling loss based on the first transmission power and the first reception power is calculated, and on the other hand, non-interference is performed by the instruction message detection unit. When a message indicating a control subframe is detected, a coupling loss calculation unit that calculates a coupling loss based on the second transmission power and the second reception power;
Based on the coupling loss calculated by the coupling loss calculator, an uplink transmission power calculator that calculates uplink transmission power;
A terminal comprising: In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
In the computer of the interference control device,
A message indicating the first transmission power that is the downlink transmission power for transmitting the interference control subframe, and a message indicating the second transmission power that is the downlink transmission power for transmitting the non-interference control subframe. The steps to generate,
Generating a message indicating a subset pattern indicating the transmission order of the interference control subframe and the non-interference control subframe;
A message indicating the first transmission power, a message indicating the second transmission power, and a message indicating the subset pattern are transmitted according to the subset pattern with the first transmission power and the second transmission power. Procedure and
Interference control program for executing In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
On the terminal computer,
A message indicating first transmission power that is downlink transmission power for transmitting the interference control subframe, and a message indicating second transmission power that is downlink transmission power for transmitting the non-interference control subframe; Receiving a message indicating a subset pattern indicating the transmission order of the interference control subframe and the non-interference control subframe; and
Detecting a message indicating the first transmission power and a message indicating the second transmission power;
Detecting a message indicating the subset pattern;
When the received interference control subframe is detected based on the message indicating the subset pattern, the first transmission power is selected, and the received non-interference control subframe is indicated by the subset pattern. A procedure for selecting the second transmission power if detected based on a message;
Measuring a first received power that is the received power of the interference control subframe and a second received power that is the received power of the non- interference control subframe;
When the first transmission power is selected, a coupling loss based on the first transmission power and the first reception power is calculated, and when the second transmission power is selected, the second transmission power and Calculating a coupling loss based on the second received power;
Based on the coupling loss issued the calculated, the procedure of calculating the uplink transmission power,
Interference control program for executing In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
In the computer of the interference control device,
A procedure for selecting a subframe for interference control or a subframe for non-interference control as a target for calculating a coupling loss;
Generating a message indicating the first transmission power associated with the selected interference control subframe or a message indicating the second transmission power associated with the selected non-interference control subframe;
A step of generating a message indicating a subset pattern,
Generating a message indicating the selected interference control subframe or a message indicating the selected non-interference control subframe;
A message indicating the first transmission power or a message indicating the second transmission power; a message indicating the subset pattern; a message indicating an interference control subframe or a message indicating a non-interference control subframe; Transmitting according to the subset pattern with one transmission power and the second transmission power;
Interference control program for executing In an interference control system of a mobile communication system for time-division multiplexing an interference control subframe and a non-interference control subframe,
On the terminal computer,
First message indicating the transmission power is a downlink transmit power for transmitting the interference control subframe, or a message indicating a second transmission power is a downlink transmit power for transmitting the non-interference control subframe, A procedure for receiving a message indicating a subset pattern indicating the transmission order of an interference control subframe and a non-interference control subframe, and a message indicating an interference control subframe or a message indicating a non-interference control subframe;
Detecting a message indicating the first transmission power or a message indicating the second transmission power;
A step of detecting the message indicating the subset pattern,
Measuring a first received power that is the received power of the interference control subframe and a second received power that is the received power of the non- interference control subframe;
A procedure for detecting a message indicating an interference control subframe or a message indicating a non-interference control subframe;
If a message indicating the interference control subframe is detected, calculating the coupling loss based on the first transmission power and the first received power, whereas, a message indicating the non-interference control subframes detected A procedure for calculating a coupling loss based on the second transmission power and the second received power;
Based on the coupling loss issued the calculated, the procedure of calculating the uplink transmission power,
Interference control program for executing

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