Mitsubishi Electric Corporation patent applications published on November 30th, 2023

Patent applications for Mitsubishi Electric Corporation on November 30th, 2023

AIR-CONDITIONING APPARATUS (18181749)

Main Inventor

Tetsuya TANAKA

Brief explanation

The patent application describes an air-conditioning apparatus for railway vehicles.

• The apparatus includes a casing to store a device and an access door that can be pulled downward to allow access to the device.
• The access door is pivotably supported by the casing via a hinge.
• A control device and an inverter device are mounted on the surface of the access door facing the interior space of the casing.
• The control device is used to control the air-conditioning apparatus, while the inverter device supplies operational electric current to the apparatus.
• The main circuit wiring for power supply and control wiring for sending and receiving control signals are separated from each other.
• The access door is positioned between the main circuit wiring and the control wiring.

Abstract

An air-conditioning apparatus includes a casing to store a device included in the air-conditioning apparatus, and an access door pivotably supported by the casing via a hinge so as to be pulled downward of the casing to allow access from inside a compartment of the railway vehicle to the device in the casing. A control device to control the air-conditioning apparatus and an inverter device to supply an operational electric current to the air-conditioning apparatus are mounted on a surface of the access door on a side facing an interior space of the casing. Main circuit wiring for supply of power and control wiring for sending and receiving of a control signal are disposed apart from each other, with the access door between the main circuit wiring and the control wiring.

AIR-CONDITIONING SYSTEM (18249682)

Main Inventor

Mizuo SAKAI

Brief explanation

The abstract describes an air-conditioning system that includes various components and circuits to estimate and control the deterioration of the air-conditioning apparatus. Here are the key points:

• The system includes an air-conditioning apparatus, storage device, deterioration estimation unit, lifetime calculation circuitry, control construction circuitry, and air-conditioning control circuitry.
• The storage device stores values of contrast parameters and contrast deterioration information items for multiple air-conditioning apparatuses, including one that is identical in condition to the air-conditioning apparatus being used.
• The deterioration estimation unit uses the values of operation parameters and contrast parameters to estimate the degree of deterioration of the air-conditioning apparatus.
• The lifetime calculation circuitry extracts deterioration information based on the estimated degree of deterioration.
• The control construction circuitry uses the extracted deterioration information to determine a control strategy that extends the life of the air-conditioning apparatus.

Overall, this system aims to monitor and manage the deterioration of the air-conditioning apparatus to optimize its lifespan and performance.

Abstract

An air-conditioning system includes an air-conditioning apparatus, a storage device, a deterioration estimation unit, a lifetime calculation circuitry, a control construction circuitry, and an air-conditioning control circuitry. The storage device stores the values of a plurality of contrast parameters indicating the operating status of a plurality of air-conditioning apparatuses including a contrast air-conditioning apparatus that is identical in condition to the air-conditioning apparatus and stores contrast deterioration information items indicating on a time-series basis the degree of deterioration. The deterioration estimation circuitry estimates, based on the values of an operation parameter and a contrast parameter, the degree of deterioration of the air-conditioning apparatus. The lifetime calculation circuitry extracts, based on the degree of deterioration, an extracted deterioration information item. The control construction circuitry constructs, based on the deterioration information item, a content of control that extends the life of the air-conditioning apparatus.

REFRIGERATION CYCLE APPARATUS (18027504)

Main Inventor

Hiroki ISHIYAMA

Brief explanation

The abstract describes a refrigeration cycle apparatus with a flow path switching apparatus.

• The flow path switching apparatus has two operation modes.
• In the first mode, it connects a second port and a second refrigerant port of a second heat exchanger to the suction port of a compressor via a four-way valve.
• In the second mode, it connects the second port to the second refrigerant port of the second heat exchanger without connecting them to the suction port of the compressor.
• It also connects the discharge port of the compressor to a first refrigerant port of the second heat exchanger via the four-way valve.

Abstract

A refrigeration cycle apparatus includes a flow path switching apparatus. In a first operation mode, the flow path switching apparatus is configured to cause a second port and a second refrigerant port of a second heat exchanger to communicate with a suction port of a compressor via a four-way valve. In a second operation mode, the flow path switching apparatus is configured to cause the second port to communicate with the second refrigerant port of the second heat exchanger without the second port and the second refrigerant port of the second heat exchanger communicating with the suction port of the compressor, and cause a discharge port of the compressor to communicate with a first refrigerant port of the second heat exchanger via the four-way valve.

METHOD, NON-TRANSITORY COMPUTER-READABLE MEDIUM, AND APPARATUS FOR ANALYZING SOURCE CODE (18247902)

Main Inventor

Masaki FUJITA

Brief explanation

The abstract describes a method for analyzing source code to detect latent defects caused by global variables. Here is a simplified explanation of the abstract:

• The method aims to identify portions of source code that may contain hidden defects caused by global variables.
• It involves obtaining a defect pattern of a program, which is a predefined set of characteristics indicating potential defects.
• The source code of the program is obtained for analysis.
• CRUD (Create, Read, Update, Delete) information associated with global variables is extracted from the source code.
• Based on the defect pattern, a latent defect is identified from the CRUD information.
• Finally, a CRUD matrix is generated, containing information about the identified latent defect.

Bullet points explaining the patent/innovation:

• The method provides a systematic approach to detect latent defects in source code caused by global variables.
• It utilizes a defect pattern to guide the analysis and identification of potential defects.
• By extracting CRUD information associated with global variables, the method focuses on the impact of these variables on the code.
• The identification of latent defects allows developers to proactively address potential issues before they manifest as actual defects.
• The output of the method, the CRUD matrix, provides a concise summary of the latent defect information for further analysis and action.

Abstract

The aim is to detect a portion(s) that may include a latent defect(s) under the impact of a global variable in a source code. A method for analyzing a source code using one or a plurality of processors is provided. The method includes obtaining a defect pattern of a program, obtaining a source code of the program, extracting CRUD information associated with a global variable from the source code, identifying a latent defect from the CRUD information based on the defect pattern, and outputting a CRUD matrix containing information of the latent defect.

RELIABILITY DETERMINATION DEVICE AND RELIABILITY DETERMINATION METHOD (18231488)

Main Inventor

Takuji MORIMOTO

Brief explanation

The patent application describes a system that includes several units to process input data and generate abstraction data in an abstract expression form. 

• Acquisition unit: Collects input data
• Abstraction unit: Converts input data into abstraction data in an abstract expression form
• Feature amount extracting unit: Extracts a feature amount from the abstraction data
• Restoration unit: Restores the abstraction data using the extracted feature amount
• Reliability determination unit: Determines the reliability of the extracted feature amount based on the generated abstraction data and the restored abstraction data.

Abstract

An acquisition unit to acquire input data; an abstraction unit to generate abstraction data representing the input data in an abstract expression form on a basis of the input data acquired by the acquisition unit; a feature amount extracting unit to output a feature amount of the abstraction data by using the abstraction data generated by the abstraction unit as an input; a restoration unit to output restored abstraction data obtained by restoring the abstraction data by using the feature amount output by the feature amount extracting unit as an input; and a reliability determination unit to determine reliability of the feature amount output by the feature amount extracting unit on a basis of the abstraction data generated by the abstraction unit and the restored abstraction data output by the restoration unit are provided.

METHOD TO RELAY VRU APPLICATION SERVER FOR UPDATING VRU, AND UE, VRU APPLICATION SERVER, AND UE CRIENT (18034118)

Main Inventor

Mourad KHANFOUCI

Brief explanation

The patent application describes a method for updating a parameter of a vulnerable road user (VRU) in a vehicle-to-everything (V2X) communication system. 

• The method involves receiving a message from a VRU application server by a second user equipment (UE) in a vehicle, which contains information about the VRU parameter of a first UE.
• The second UE then transmits a message to the first UE using device-to-device communication, including the information about the VRU parameter.
• Finally, the second UE receives a message from the first UE, which includes information about the value of the VRU parameter.

Bullet points:

• Method for updating a parameter of a vulnerable road user (VRU) in a V2X communication system.
• Involves receiving a message from a VRU application server by a second UE in a vehicle.
• The message contains information about the VRU parameter of a first UE.
• The second UE transmits a message to the first UE using device-to-device communication.
• The message includes the information about the VRU parameter.
• The second UE receives a message from the first UE, which includes information about the value of the VRU parameter.

Abstract

The invention relates to a method to relay a vulnerable road user, VRU, application server  for updating a vulnerable road user parameter P, P, P of a VRU corresponding to a first user equipment, UE, in a vehicle-to-everything, V2X, communication system, comprising: receiving from the VRU application server by a second UE a first message including information related to the VRU parameter of the first UE, said second UE corresponding to a vehicle and being in the V2X communication system; transmitting by the second UE to the first UE a second message including the information related to the VRU parameter via a device to device communication; and receiving by the second UE from the first UE a third message including information related to a value of the VRU parameter of the first UE.

DRIVING ASSISTANCE DEVICE, DRIVING ASSISTANCE SYSTEM, DRIVING ASSISTANCE METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM (18232984)

Main Inventor

Masaaki TAKEYASU

Brief explanation

The patent application describes a driving assistance device that helps drivers by calculating the existence range of objects around a target moving object and generating a risk map based on this information.

• The driving assistance device calculates the range where objects may exist around a target moving object.
• It also calculates the probability of each object existing at different spots within this range.
• The device then generates a potential risk map based on the distribution of objects and their associated risks.
• The potential risk map helps drivers understand the potential risks posed by objects in their surroundings.
• This driving assistance device aims to improve driver awareness and safety on the road.

Abstract

A driving assistance device () includes an object existence range calculation unit () and a risk map generation unit (). The object existence range calculation unit () calculates peripheral object distribution indicating an object existence range where there is a possibility for each object included in a peripheral object group constituted of at least one object existing around a target moving object to exist in an estimation time range, and an existence probability of each object included in the peripheral object group at each spot in the object existence range. The risk map generation unit () generates a potential risk map representing a potential risk indicating a risk of each object included in the peripheral object group based on the peripheral object distribution.

NOISE SUPPRESSION DEVICE, NOISE SUPPRESSION METHOD, AND STORAGE MEDIUM STORING NOISE SUPPRESSION PROGRAM (18233476)

Main Inventor

Toshiyuki HANAZAWA

Brief explanation

The abstract describes a noise suppression device that processes input data to reduce noise and generate post-noise suppression data.

• The device determines a weighting coefficient based on the input data and the post-noise suppression data in a specific section of a time series.
• The device then generates output data by combining the input data and the post-noise suppression data using the weighting coefficient as weights.

Abstract

A noise suppression device includes processing circuitry to generate post-noise suppression data by performing a noise suppression process on input data; to determine a weighting coefficient based on the input data in a predetermined section in a time series and the post-noise suppression data in the predetermined section; and to generate output data by performing weighted addition on the input data and the post-noise suppression data by using values based on the weighting coefficient as weights.

SWITCH (18245915)

Main Inventor

Motohiro SATO

Brief explanation

The patent application describes a switch with multiple electrode portions that can move relative to each other.

• The switch includes a tripping mechanism that separates the movable electrodes from the fixed electrodes.
• The switch also includes a second movable portion that is integrated with the movable electrodes.
• A first elastic part applies pressure to bring the movable electrodes into contact with the fixed electrodes.
• A damping mechanism is included to reduce the contraction of the first elastic part during the tripping operation.

Abstract

A switch includes: a plurality of electrode portions each including a fixed electrode and a movable electrode, the movable electrode being capable of moving with respect to the fixed electrode; an operating device including a first movable portion for collectively performing tripping operation for the plurality of electrode portions, the movable electrodes being separated from the fixed electrodes in the tripping operation; a second movable portion integrated with the respective movable electrodes of the plurality of electrode portions; a first elastic part that applies pressure for bringing the movable electrodes into contact with the fixed electrodes, the first elastic part being disposed between the first movable portion and the second movable portion; and a damping mechanism that damps contraction of the first elastic part during the tripping operation.

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE (18177373)

Main Inventor

Takashi TSUBAKIDANI

Brief explanation

The patent application describes a semiconductor device with a semiconductor substrate, an oxide film, and an organic insulating film. 

• The device has an effective region for current flow and a termination region surrounding the effective region.
• An oxide film is placed on top of the termination region to cover it.
• An organic insulating film, made of an insulating material, covers a portion of the oxide film, excluding the peripheral area.
• The portion of the oxide film covered by the organic insulating film has either a downward concave groove or an upward protruding ridge.
• The groove has a section where its width decreases upwards, while the ridge has a section where its width increases upwards.

Abstract

A semiconductor device includes a semiconductor substrate in which an effective region through which a current flows and a termination region formed so as to surround an outer peripheral side of the effective region are defined, an oxide film provided in contact with an upper surface of the termination region so as to cover the upper surface, an organic insulating film containing an insulating material and provided so as to cover a portion of the oxide film excluding the peripheral portion, and at least one of a groove concave downward and a ridge protruding upward in the portion of the oxide film covered with the organic insulating film, in which the groove has a portion in which a width thereof decreases upward, and the ridge has a portion in which the width thereof increases upward.

SEMICONDUCTOR MODULE (18232978)

Main Inventor

Takuma NISHIMURA

Brief explanation

The patent application describes a semiconductor module that includes various components for signal transmission and heat dissipation. 

• The module consists of a semiconductor element with signal and ground terminals on its front face.
• A transmission line body is present with a signal transmission portion and a ground portion.
• A signal connection terminal is electrically connected to the signal transmission portion, while ground connection terminals surround the signal connection terminal and are connected to the ground portion.
• These terminals form a pseudo coaxial line.
• A heat dissipation plate is in close contact with the back face of the semiconductor element.
• An interposer substrate is included, which has a semiconductor-element signal pad connected to the signal terminal of the semiconductor element using a conductive adhesive.
• The interposer substrate also has a transmission-line-body-2 signal pad connected to the signal connection terminal, and a ground portion connected to the ground connection terminals.

Abstract

A semiconductor module includes: a semiconductor element having, on a front face thereof, a signal terminal and a ground terminal; a transmission line body having a signal transmission portion and a ground portion; a signal connection terminal electrically connected to the signal transmission portion of the transmission line body; ground connection terminals arranged to surround the signal connection terminal and electrically connected to the ground portion of the transmission line body, the ground connection terminals and the signal connection terminal constituting a pseudo coaxial line; a heat dissipation plate having a front face in close contact with a back face of the semiconductor element; and an interposer substrate having a semiconductor-element signal pad electrically connected to the signal terminal of the semiconductor element by a conductive adhesive, a transmission-line-body-2 signal pad electrically connected to the signal connection terminal, and a ground portion electrically connected to the ground connection terminals.

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME (18163233)

Main Inventor

Taiki HOSHI

Brief explanation

The patent application describes a semiconductor device with specific regions and impurity concentrations.

• The device includes a drift region, a hydrogen buffer region, a flat region, and a carrier injection layer.
• The drift region is formed in a semiconductor substrate and is of the first conductive type.
• The hydrogen buffer region is positioned on the back surface side of the drift region and has a higher impurity concentration than the drift region.
• The hydrogen buffer region contains hydrogen as impurities.
• The flat region is positioned on the back surface side of the hydrogen buffer region and has a higher impurity concentration than the drift region.
• The carrier injection layer is positioned on the back surface side of the flat region and has a higher impurity concentration than both the hydrogen buffer region and the flat region.
• Both the hydrogen buffer region and the flat region have a constant oxygen concentration ranging from 1E16 atoms/cm to 6E17 atoms/cm.

Abstract

A semiconductor device includes a drift region that is of first conductive type and formed in a semiconductor substrate; a hydrogen buffer region that is of first conductive type, positioned on the back surface side of the drift region, contains hydrogen as impurities, and has impurity concentration higher than impurity concentration of the drift region; a flat region that is of first conductive type, positioned on the back surface side of the hydrogen buffer region, and has impurity concentration higher than impurity concentration of the drift region; and a carrier injection layer that is of first or second conductive type, positioned on the back surface side of the flat region, and has impurity concentration higher than impurity concentrations of the hydrogen buffer region and the flat region. The hydrogen buffer region and the flat region each have a constant oxygen concentration of 1E16 atoms/cmto 6E17 atoms/cminclusive.

SEMICONDUCTOR APPARATUS (18062862)

Main Inventor

Yuji EBIIKE

Brief explanation

The patent application describes a semiconductor apparatus that includes two gate electrodes and a control circuit to control gate voltages. There is also a coil connected between one of the gate electrodes and the control circuit.

• The semiconductor apparatus has two gate electrodes connected in parallel.
• A control circuit is included to control the gate voltages of the two gate electrodes.
• A coil is connected between one of the gate electrodes and the control circuit.

Abstract

According to the present disclosure, a semiconductor apparatus comprises a first gate electrode; a second gate electrode connected in parallel with the first gate electrode; a control circuit connected to the first gate electrode and the second gate electrode and configured to control gate voltages; and a coil connected between the second gate electrode and the control circuit.

POWER CONVERSION DEVICE (18031627)

Main Inventor

Sadayuki INOUE

Brief explanation

The patent application describes a control circuit for a distributed power source.

• The control circuit includes a virtual synchronous generator control circuit, a control parameter generating circuit, an inverter voltage control circuit, and a communication circuit.
• The virtual synchronous generator control circuit imparts a transient characteristic of a synchronous generator to the inverter.
• The control parameter generating circuit generates a control parameter for the virtual synchronous generator control circuit.
• The inverter voltage control circuit controls the inverter as a voltage source based on AC system voltage information.
• The communication circuit receives a power target value and necessary information from a management device.
• The control parameter generating circuit generates a speed adjustment rate and a damping coefficient based on the received power target value and information.
• The control circuit enables efficient control of the distributed power source.

Abstract

A control circuit includes a virtual synchronous generator control circuit to impart a transient characteristic of a synchronous generator to the inverter, a control parameter generating circuit to generate a control parameter for controlling the virtual synchronous generator control circuit, an inverter voltage control circuit to control the inverter as a voltage source, based on AC system voltage information input from the virtual synchronous generator control circuit, and a communication circuit to receive, from a management device that manages the distributed power source, a power target value of the distributed power source and information necessary for generating the control parameter. The control parameter generating circuit generates at least one of a speed adjustment rate and a damping coefficient to be used in the virtual synchronous generator control circuit, based on the power target value and the information necessary for generating the control parameter received by the communication circuit.

POWER CONVERSION DEVICE (18306569)

Main Inventor

Kazuhiro FUJIOKA

Brief explanation

The patent application describes a system that sets the duty ratio of a PWM signal based on a target voltage value and detects abnormalities in the voltage detection unit. 

• The system includes a setting unit that sets the duty ratio of a PWM signal based on a target voltage value.
• The duty ratio is then outputted to a voltage conversion circuit.
• An estimated value calculation unit calculates an estimated duty ratio value based on the detected input and output voltage values.
• An abnormality detection unit calculates the difference between the updated estimated value and a comparison reference value.
• The abnormality detection unit detects abnormalities in the voltage detection unit based on changes in the calculated difference value.
• The updated estimated value is a newly calculated estimated duty ratio value.
• The comparison reference value is based on the estimated duty ratio value calculated in the previous cycle.

Abstract

A setting unit sets a duty ratio of a PWM signal based on a target voltage value, and outputs the duty ratio to a voltage conversion circuit. An estimated value calculation unit cyclically calculates an estimated duty ratio value based on the detected input voltage value and the detected output voltage value. An abnormality detection unit cyclically calculates, as a difference value, a difference between an updated estimated value and a comparison reference value, and detects abnormality of a voltage detection unit based on a change in calculated difference value. The updated estimated value is a newly calculated estimated duty ratio value. The comparison reference value is a value based on the estimated duty ratio value calculated in a cycle prior to a cycle in which the updated estimated value is calculated.

POWER CONVERTER AND DRIVE CONTROLLER (18044762)

Main Inventor

Yukihiro YOSHIDA

Brief explanation

The patent application describes a power conversion device that converts power generated by a power generator for supply to a load. 

• The device includes a power converter, a target torque calculator, and a power conversion controller.
• The power converter converts the generated power into the required power for the load.
• The target torque calculator calculates the target torque of the power generator based on the load's operation state.
• The power conversion controller controls the power converter using torque current and exciting current command values to adjust the output torque of the power generator to match the target torque.
• The absolute values of the torque current command value and the exciting current command value have a positive correlation during power generation.

Abstract

A power conversion device includes a power converter to convert power generated by a power generator into power to be supplied to a load, a target torque calculator to calculate a target torque of the power generator in accordance with an operation state of the load, and a power conversion controller to control the power converter based on a torque current command value and an exciting current command value for causing an output torque of the power generator to approach the target torque. Absolute values of the torque current command value and the exciting current command value calculated by the power conversion controller during the power generation by the power generator have a positive correlation.

MOBILE COMMUNICATION SYSTEM (18446938)

Main Inventor

Miho MAEDA

Brief explanation

The patent application describes a mobile communication system that allows a base station to communicate with user equipment using multiple component carriers or aggregated carriers. 

• The base station can communicate with user equipment using either separate component carriers or aggregated carriers.
• When using aggregated carriers, the base station transmits multiple transport blocks, which are created by dividing a transport channel, on each component carrier.
• Control information related to the radio communication between the base station and the user equipment is transmitted in a way that identifies the physical information of the corresponding component carrier.
• This allows for efficient communication control and improved communication speed when using aggregated carriers.

Abstract

In a mobile communication system according to the present invention, with the separate use of a plurality of component carriers or with the use of a carrier set including the plurality of component carriers aggregated, a base station performs radio communication with a user equipment corresponding to the component carrier or a user equipment corresponding to the aggregated carriers. In particular, in a case where the base station performs radio communication with the user equipment corresponding to the aggregated carriers with the use of the aggregated carriers, each of a plurality of transport blocks created by dividing a transport channel is transmitted per each of the plurality of component carriers constituting the aggregated carriers, and control information related to radio communication between the base station and the user equipment corresponding to the aggregated carriers is transmitted such that physical information of the corresponding component carrier is identifiable. Accordingly, communication control is performed efficiently while improving a communication speed correspondingly to the aggregated carriers.

ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION METHOD, AND COMPUTER READABLE MEDIUM (18231626)

Main Inventor

Yusuke NAITO

Brief explanation

The patent application describes an encryption device that divides a plaintext into multiple parts and encrypts them using a block cipher.

• The encryption device uses a key and a replacement function to encrypt each part of the plaintext.
• It generates an n-bit value for each part by encrypting the previous value using the key.
• The device also generates a value by combining the encrypted values and the corresponding parts of the plaintext.
• To detect any alteration of the ciphertext, the device generates an authenticator using a value and the last encrypted value.
• The encryption device ensures secure encryption and detection of alterations in the ciphertext.

Abstract

An encryption device divides a plaintext M to generate a value M[1], . . . , and a value M[m]. The encryption device generates an n-bit value B[i] by encrypting a value B[i−1] by a block cipher with a value T[i−1] as a key, for each integer i of i=1, . . . , m in ascending order, generates a value C[i] from the value B[i] and a value M[i], and generates an n-bit value T[i] from a value P(T[i−1]) obtained by converting the value T[i−1] using a replacement function P, a value F(B[i]) obtained by converting the value B[i] using a replacement function F, and the value C[i]. The encryption device generates a ciphertext C by connecting the values C[i] for i=1, . . . , m. The encryption device generates from a value H[m] and the value B[m], an authenticator Tag for detecting an alteration of the ciphertext C.

CONTROL CIRCUIT, STORAGE MEDIUM, AND INFORMATION DELIVERY METHOD (18234131)

Main Inventor

Shusaku UMEDA

Brief explanation

This patent application describes a system where an application server provides dynamic map information to a mobile object for fully automated driving.

• The dynamic map information is used to guide the mobile object in specific driving conditions.
• When the mobile object moves from one area to another and changes base stations, the application server ensures uninterrupted delivery of dynamic map information.
• If the mobile object is unable to simultaneously communicate with both base stations during the handover, the application server delivers the dynamic map information through the current base station.
• The mobile object is capable of receiving the dynamic map information from the base station.
• This system ensures that the mobile object always has access to the necessary dynamic map information for safe and efficient automated driving.

Abstract

An application server delivers dynamic map information to a mobile object that receives the dynamic map information, the dynamic map information being information of a dynamic map that is used for execution of fully automated driving under a specific condition. When the mobile object executes a handover from a base station capable of transmitting the dynamic map information in a first area to a base station capable of transmitting the dynamic map information in a second area, in a case where the mobile object is in fallback operation in which simultaneous communication with the base stations is unavailable, the application server delivers the dynamic map information to the mobile object via the base station and a mobile object capable of receiving the dynamic map information from the base station.

COMMUNICATION SYSTEM (18446575)

Main Inventor

Mitsuru MOCHIZUKI

Brief explanation

The abstract describes a method for mapping a Physical Downlink Shared Channel (PDSCH) in a wireless communication system.

• The PDSCH of a legacy UE (User Equipment) is mapped to physical resources per subframe.
• The PDSCH of an LR-UE (Low-Rate User Equipment) is mapped to a specific region of the physical resources, based on the Physical Resource Blocks (PRBs) included in the subframe.
• The PDSCH of the legacy UE can also be mapped to physical resources per PRB pair, which includes two physical resource blocks.
• The PDSCH of the LR-UE is mapped to the remaining physical resources, excluding the PRB pairs used by the PDSCH of the legacy UE.

Abstract

A PDSCH of a legacy UE is mapped to physical resources per subframe, whereas a PDSCH of an LR-UE is mapped, per physical resource block (PRB) included in the subframe, to a region of the physical resources to which the PDSCH of the legacy UE is mapped. The PDSCH of the legacy UE may be also mapped to the physical resources per PRB pair including two physical resource blocks, whereas the PDSCH of the LR-UE may be mapped to the remaining physical resources excluding the PRB pairs to which the PDSCH of the legacy UE is mapped.