39results about How to "Improve wireless communication efficiency" patented technology

A method and apparatus for pilot signal transmission is disclosed, which is capable of improving efficiency in a wireless communication system, the method comprising transmitting an uplink transmission frame for a first sector or cell by a mobile station through the use of basic pilot pattern in a resource block and transmitting an uplink transmission frame for a second sector or cell by the mobile station through the use of shift pilot pattern which is not overlapped with the basic pilot pattern in the resource block.

The present invention provides a device-to-device (D2D) operation method performed by a remote UE in a wireless communication system, the method comprising: measuring the quality of a link between a relay UE and the remote UE on the basis of an offset; and selecting a relay UE suitable for the remote UE on the basis of the measurement, wherein the offset is determined on the basis of information which may have an effect on communicating with a base station by the remote UE through the relay UE.

Provided is a method for a device-to-device (D2D) action carried out by a terminal in a wireless communication system, the method comprising the steps of: determining priorities for a first D2D action and a second D2D action; on the basis of the determined priorities, determining the D2D action to be carried out from among the first D2D action and second D2D action; and on the basis of the determined D2D action to be carried out, carrying out any one D2D action from among the first D2D action and second D2D action.

The present invention discloses a method of handling multi-user / multi-service in a wireless communication system comprising an access point, characterized in that the method includes the steps of: converging, by the access point, data packets of multi-user / multi-service and encapsulating the data packets of multi-user / multi-service into a container in the access point; coding and modulating, by the access point, the data encapsulated in the container; and mapping, by the access point, the coded and modulated data in the container to physical resources and emitting via a traffic channel the coded and modulated data in the container. According to the present invention, efficiency of a wireless communication system can be enhanced while delay can be reduced.

A portable information handling system having plural radios, each radio having a dedicated antenna and interfaced with a common shared antenna. A controller tunes the shared antenna to support a multi-antenna configuration of one of the radios, such as a MIMO configuration, based upon one or more predetermined conditions, such as data communication supported by the radios, signal strength associated with the radios, proximity sensing at the information handling system housing, and a rotational relationship of rotationally coupled housing portions.

A wireless communication apparatus includes a transmitting portion to transmit a data signal to other wireless communication apparatus, a receiving portion to receive a reception confirmation signal indicating reception of the data signal by the other wireless communication apparatus from the other wireless communication apparatus during a specified period, a determination portion to determine that a predetermined requirement is satisfied if the receiving portion receives a given signal during the specified period, and a control portion to control the transmitting portion to request the other wireless communication apparatus to retransmit the reception confirmation signal if the receiving portion does not normally receive the reception confirmation signal and the determination portion determines that the predetermined requirement is satisfied.

A method performed by a transmitting node (110) for reducing interference in a wireless communications network (100) is provided. The transmitting node (110) receives information indicating that inference caused by an interfering node (111) to a transmission signal from the transmitting node (110) fulfills a timing condition relative to the reception of 5 the transmission signal in a receiving node (121) in the wireless communications network (100). Then, the transmitting node (110) adjusts one or more transmission parameters in the transmitting node (110) based on the received information. A transmitting node (110) is also provided. Furthermore, an interfering node (111) and a method therein for reducing 10 interference in a wireless communications network (100) are also provided, as well as, a receiving node (121) and a method therein for reducing interference in a wireless communications network (100).

The present invention provides a device-to-device (D2D) operation method performed by a remote UE in a wireless communication system, the method comprising: measuring the quality of a link between a relay UE and the remote UE on the basis of an offset; and selecting a relay UE suitable for the remote UE on the basis of the measurement, wherein the offset is determined on the basis of information which may have an effect on communicating with a base station by the remote UE through the relay UE.

A method and a communication apparatus for deciding a transmitting region for an allocated transmitting burst in a frame of an orthogonal frequency division multiplex access (OFDMA) system are provided. The communication apparatus comprises a decoder and a processing unit. The decoder decodes an MAP message, which is related to the allocated transmitting burst, into a plurality of parameters. The processing unit assigns a plurality of burst regions in the frame according to the parameters and decides a transmitting region according to the burst regions.

Embodiments of the invention disclose an external antenna apparatus and a connecting method therefor, and a terminal. The external antenna apparatus comprises a terminal interface unit used for being matched and connected with an external antenna interface unit of the terminal, an antenna unit connected with the terminal interface unit, and a tuning unit connected with the terminal interface unit and the antenna unit separately, wherein the tuning unit is used for receiving a frequency adjustment signal sent from the terminal, and adjusting the resonance frequency of the antenna unit according to the frequency adjustment signal. By virtue of the external antenna apparatus, wireless communication efficiency of the terminal can be improved.

The present invention relates to a method for transmitting and receiving data in a wireless communication system. The method for transmitting data in a wireless communication system, according to one aspect of the present invention, comprises a step in which a base station transmits downlink data to a first terminal which supports a first system via a first region of a frame, and transmits downlink data to a second terminal which supports a second system via a second region which follows the first region corresponding to a frame offset on a time axis, wherein said frame offset is an offset of the start point of the frame for said first system and the start point of the frame for said second system, and said first region includes 3+6 (said frame offset-1) OFDM symbols.

The present invention relates to a near field wireless communication antenna and a portable terminal. A loop pattern (22) is patterned on a flexible film (21) from a start terminal (23) to an end terminal (24) while being connected to an adjacent metal plate (10) through a jump contact point (25) so that, resultantly, the flow of a signal current passes through the start terminal (23) and the jump contact point (25) to extend to the metal plate (10) and then again through the jump contact point (25) to extend to the end terminal (24), thus providing an expanding effect of the loop pattern (22) in which signal power is maximized to enable emission and allowing wireless communication efficiency to be more significantly improved.

A method of transmitting and receiving data in a wireless communication system is disclosed. According to an embodiment of the present invention, a base station (BS) transmits downlink data to a first mobile station supporting a first system via a first zone of a frame and transmitting downlink data to a second mobile station supporting a second system via a second zone located behind the first zone by a frame offset on a time axis, wherein the first zone includes the odd number of OFDM symbols and wherein the frame offset is an offset between a start point of a frame for the first system and a start point of a frame for the second system.

A method and a communication apparatus for deciding a transmitting region for an allocated transmitting burst in a frame of an orthogonal frequency division multiplex access (OFDMA) system are provided. The communication apparatus comprises a decoder and a processing unit. The decoder decodes an MAP message, which is related to the allocated transmitting burst, into a plurality of parameters. The processing unit assigns a plurality of burst regions in the frame according to the parameters and decides a transmitting region according to the burst regions.

The invention discloses a robot control method and a robot charging pile, and relates to the technical field of automatic control. The robot control method is executed by the robot charging pile. The method comprises the following steps: acquiring a control instruction from user equipment; a target robot is determined according to the control instruction, and the control instruction is issued to the target robot; and a robot to be charged is charged. According to the invention, the robot charging pile is used as a gateway, so that the control efficiency and stability of the robot can be improved; the occupied space can be reduced; and the wiring complexity is reduced.

The present invention relates to a method for selecting transmitting and receiving antennas in a full-duplex MIMO system based on channel information. An embodiment of the present invention provides a method for selecting antennas in a full-duplex MIMO wireless communication system for communication between a first node and a second node. The method may include: calculating the number of transmitting antennas and the number of receiving antennas at a node i having an Ni number of antennas such that Nc has a maximum value, where Nc represents the number of all possible antenna set candidates, N is a natural number of 2 or higher with Ni being the sum of transmitting antennas and receiving antennas at said node i, and i is 1 or 2; and determining transmitting antennas and receiving antennas at node i in consideration of the transmission rate.

The invention discloses an NB-IOT (Narrow Band Internet of Things) water meter system, which comprises an NB-IOT water meter acquisition end, an NB-IOT base station, an IOT core network, an IOT water meter cloud platform and an NB-IOT client terminal, the NB-IOT Internet of Things base station comprises a first information receiving and sending module group which forms one-to-one pairing of independent frequency bands with information sending modules of the NB-IOT Internet of Things water meter collection end. The IOT core network comprises a second information receiving and sending module group which can be in wireless transmission connection with the first information receiving and sending module group; the NB-IOT Internet of Things base station further comprises a first encryption end; the NB-IOT water meter system comprises a first encryption end and a second encryption end, the IOT water meter cloud platform comprises a second encryption end, the NB-IOT water meter system applies an independent frequency band communication technology, a filtering technology and an encryption technology on a plurality of wireless connection platforms, so that communication of the NB-IOT water meter system is smoother and more efficient, and confidentiality of information wireless communication is greatly improved.

A communication device, including: a processing unit configured to generate a first protocol data unit (PDU) including first sequence number information specifying a first sequence number of a data unit set for each multicast group, multicast group information specifying a multicast group, and a data unit; and a wireless communication unit configured to transmit the first PDU generated by the processing unit. The communication device provides a mechanism capable of improving efficiency of wireless communication even in a case in which a plurality of types of multicast communication which differ in a multicast group serving as a destination are performed.

A system and method of index modulation based joint mode frequency hopping with vortex electromagnetic waves for anti-jamming are provided. The system is additionally provided with a transmit signal carrier selector that provides diversified options, a receive signal carrier selector that is strictly synchronized with the transmit signal carrier selector, and a group of fast Fourier transformation modules to output a binary demodulation signal with jamming eliminated. The method includes: binary information division; index modulation and information modulation; information loading and hopping; information transmission, de-hopping, and jamming filtering; and calculation of the jamming probability and an average bit error rate. The present disclosure combines orbital angular momentum modes and subcarrier frequencies to form OAM mode-subcarrier frequency pair sets so as to diversify information transmission carriers, and performs simultaneously modulation and hopping to increase a spectrum efficiency and enhance the anti-jamming capability.