Top Research Papers on Wireless Communication

In a wireless master device (N201), a wireless scheduling unit (16) allocates a real-time data period within a communication cycle for performing wireless communication with a wireless slave device that transmits real- time data and non-real-timeData which has lower priority than the real- Time dataperiod.

In a wireless master device (N201), a wireless scheduling unit (16) allocates a real-time data period within a communication cycle for performing wireless communication with a wireless slave device that transmits real- Time data and non-real-timeData which has lower priority than the real- time data.

In the implementation of SVD-MIMO transmission, with a small number of antennas simplifies the build process and ensure satisfactory decoding capabilities.

The present invention can start a call in a short time and elongate the operational time with a wireless communication apparatus serving as a mobile wireless station.

With the help of the present invention it is possible to start call with device of wireless communication that acts as mobile station of wireless Communication for a short period of time and to prolong time of such wireless communication device operation.

The invention provides a wireless communication apparatus that includes a sender identity evaluating portion that evaluates whether a sender of consecutively received packets is the same, and a physical layer control portion that controls aphysical layer using an evaluation result if the sender identity evaluate portion evaluates that a sender

The present invention addresses the problem of an increase in transmission delay when a communication is performed using a plurality of wireless transmission devices having different wireless transfer delays if a pluralityof wireless lines are regarded as a single wireless line.

The invention provides a Wireless communication system, a wireless communications apparatus and a wireless communication method to perform beam formation based on channel estimation in reverse direction by an Implicit feedback when the number of antennas on the transmission side terminal is small.

A wireless communication apparatus according to one embodiment of the present invention is provided with a baseband processing device that generates IQ data and a wireless transmission device that modulates the IQ data into microwaves and wirelessly transmits the microwaves.

Although the near distance with the communication partner, but also avoid signal or amplifies the received signal to be transmitted, it is possible to reduce wasteful power consumption.

Ein drahtloses Kommunikationssystem umfasst eine erste draht lose Komm unter Verwendung eines ersten Slots, eines zweiten Slots and eine dritte Drahtlose Komunikationvorrichtung.

Disclosed are a wireless communication device, wireless communication method and wireless communication system that allow selective utilization of the advantages of both centralized and distributed control while minimizing the time necessary for a cell search.

To prevent a decrease in power consumption deterioration and the communication speed of the wireless communication, each node 50, the number of nodes to be searched to determine the transmission power for data communication so that the target value is found.

Differences in transmission delays in multiple wireless lines can be suppressed with the help of a wireless communication device, a wireless communications system, and a wireless Communication method.

This arrangement allows for a quick channel change in response to detection of radar/radio signals, such as a weather radar, during communication of a 5 GHz frequency band in the WDS mode.

In response to a control section, which after a pause request when the transmission control signal, the determination portion determines that the data transmission from the counterpart communication apparatus becomes possible, the Transmission control response addressed to the wireless communication device transmit a response signal request signal.

A wireless communication system using a multi-air stream transmitted from the first terminal including N antennas to a second terminal including M antennas to execute the data transfer.

In a wireless communication apparatus performing data transmissions using a plurality of code words, as to a response time in which a transmitting station transmits data to a receiving station and receives a response signal (Ack/Nack signal), it is arranged that the period of a first response time corresponding to a higher-level code word be shorter than that of a second response time corresponds to a lower- level code word.

A wireless communication system wherein wireless communications are performed via radio propagation paths, wherein a first wireless communication apparatus comprises a receiving unit for receiving a radio signal via a radio propagation path and a disconnection detecting unit for detecting a disconnected channel.

The wireless communication apparatus comprising: a receiving unit, a plurality of frequency bands selecting priority of the highest frequency band of receiving a signal; and a transmitting unit, using the selected frequency band and the highest priority of selecting the highestpriority of selection of the band than the low band priorities.

This invention provides technology whereby communication stations for carrying out random accessing can carry out information transmission by using a proper transmission rate.In a first MRQ state, a reception station feeds back an MCS (modulation coding scheme) wherein a succeeding packet is to be transmitted to a transmission station and sets a Duration value corresponding to the MCS. In a second MRQ state, the reception station carries out no MCS feedback, esteems a default MCS set by the transmission station and sets a Duration value corresponding to the MCS. Further, in a third MRQ state,t...

A wireless communication apparatus comprising a detecting means for detecting temperature inside the device; and a control means for It detected by the temperature detecting means becomes a preset first threshold value or more when the maximum transmission speed of the device itself can be realized to be limiting.

The invention provides a wireless communication system, wireless communication device and wireless communication method that multiplies a first data stream and a second data stream by the transmission weight matrix.

The objective of the invention is to suitably operate a virtual carrier to be used in an MTC by avoiding interferences from control signals and synchronization signals inserted in the data areas of subframes transmitted from a macro eNodeB.

The beacon slot management unit sets the elapse of the predetermined pause period after a beacon slot, and the beacon signal switching unit has elapsed after the predeterminedPause period, and set the beacon slot using the beaconslot of the transmission signal within a predetermined time period.

This invention is directed to reduction of the load in detecting control signals used when using a plurality of frequency bands to perform communications.

A wireless communication apparatus comprising a communication unit that transmits a reference signal; a first multiplying unit, the other end of communication is performed based on the received reference signals to determine the weight of the first transmission weight multiplier.

When the wireless communication terminal, which performs a carrier aggregation, manages the synchronization timings of a plurality of uplinks, the wirelesscommunication apparatus can quickly and efficiently perform a process to adjust the synchronizationTimings.

Base station 20, mobile terminal device 30 the result of monitoring the changes in the parameters of the adaptive array antenna to control the directivity of the beam to be transmitted, if the value indicating the change falls below a predetermined value, the signal to be transmit inhibit control of directivity.

A radio communication method for a radio communication device having a first communication unit and a second communication unit includes detecting a connectable local-area radio network based on the read communication set information when the communication determination unit determines that a connection between theRadio communication device and a local- area radio network is in the difficult state.

본 발명은 통신 장치(1, 2)는, 효율적으로 실행할 수 있게 한다.

This wireless communication device is provided with antennas, transceiver units connected to each of the antennas, and a hopping control unit which performs control such that the frequency channel is switched at fixed time intervals in synchronization with the communication partner.

The present invention relates to wireless communication device, wireless communication system and wireless communications methods, and the use control of multiple frequency bands can be effectively performed.

In the SVD-MIMO transmission using a singular value decomposition, the feedback from the receiver to the transmitter the amount of information is reduced and calibration can compensate for the error between the transmitter and the receiver transmit and receive both the analog parts.

A wireless communication method MIMO communication using a wireless communication apparatus having N antennas includes performing first inverse-matrix determining processing which determines a first inverse matrix of a channel matrix for a first antenna selected from the N antennas.

A wireless communication system performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second terminal including M antennas.

According to the scheme of the invention, the system throughput of a wireless network distributed in an intensive small community on the specific resource block is maximized.

It is shown here how to identify the different types of信号 using a smartphone.

一种无线通信设备包括发射器，用于发射响应请求信号，接收器，用于响应所述响应请求信号而接收从无线通信介质发射的响应，电平检测器，用于检测响应接收信号电平，存储器，用于存储每一种类型的介质的接收信号的阈值信号电平；以及控制器，用于基于响应中包括的介质类型数据和每一种类型的存储介质的接收信号的阈值信号电平设置允许将数据写入到向其发射了响应的介质的阈值信号电平，当响应接收信号电平大于阈值信号电平时，开始将数据写入到向其发射了响应的介质。

Taking into account the overhead of power consumption and uplink of the MTC terminal, a point-selection of CoMP uplink is realized by combining the resource blocks of the first half including a reference signal and the two resource blocks that the second half of the resource block for transmitting user data, to realize the Co MP uplink.

In a wireless communication apparatus for performing wireless communication for the terminal, the first interface conversion to extract a first and a second signal respectively corresponding to the multiple of two different input methods are used.

This introductory chapter will briefly review the history of wireless networks from the smoke signals of the pre-industrial age to the cellular, satellite, and other wireless networks of today, and discusses the wireless vision in more detail, including the technical challenges that must still be overcome.

本发明提供一种无线网络系统，包括逻辑或物理上分开的有线网络，连接到有线网络的无线基站，和执行与无线基站无线通信的多个无线移动终端。 在该系统中使用的无线基站包括连接到有线网络的有线通信单元，通过使用一个无线电频率执行与无线通信的无线通信单元，和有线线路/无线信道桥接功能，该无线基站还包括控制单元，控制一个无线通信单元发送存储对应于多个虚拟无线网络的多个信息的分组，以便形成多个虚拟无线网络。

A communications device for performing wireless communications includes a data receiving section for receiving data by wireless communications, a mode switching section for switching an operation mode of the communications device between a first mode in which power is supplied to the data transmitting section, and a second mode inWhich power consumption in at least theData transmitting section is minimized over that in the first mode.

A random access signal transmitted by allocating in a defined band, a receiving apparatus for receiving from a transmitting apparatus, a bandwidth allocation pattern is a combination of the band and a plurality of size bands combined the different each other.

Wireless communication system according to the present invention includes a wireless communication device for transmitting and receiving first beacon signal and a second beacon signal.

To provide a wireless terminal capable of efficiently exchanging a delivery confirmation response, an integrated circuit for wireless communication according to an embodiment is equipped with a baseband integrated circuit.

It is possible to minimize the amount of signaling relating to the settings of component carriers in a carrier aggregation by dividing difference information between the setting information included in the component carrier set being used.

To improve the probability to subscribe to the desired wireless network, the wireless communication integrated circuit comprises a baseband integrated circuit and a first signal obtained by the first sensor received via the RF integrated circuit.

The wireless communication apparatus according to the invention includes a first wireless communications apparatus (STA1) which transmits search data to a second wirelesscommunication apparatus ( STA2) connected through an access point in a wireless communication network and determines whether a direct link setup to the second wireless communication platform (STa2) is possible.