36results about How to "Improve signal interference" patented technology

The invention relates to a relay or repeater node (21) for use in a wireless communications system said node comprising a receive antenna (23) for receiving a signal through a wireless connection, an amplifier (30) for amplifying the signal and a transmit antenna (27) for forwarding the amplified signal, said node further comprising a mode switching unit (31) for switching between at least a first and a second mode of operation of the node in dependence of an amplification gain requirement. This enables optimization of the node for varying conditions in the network.

An adaptive SINR control process is triggered based on various quality measures associated with the received signal in a mobile device or on a geographic region in which a base station and an interferer are located. As part of the adaptive SINR control process the mobile device reduces the signal level of the received signal, which reduces both the signal strength of the desired signal and interfering signal. If the control process is triggered on the mobile device side, after detecting the presence of interference, the mobile device sends a request that the base station increases its transmit power of the desired signal to improve the receiving SINR in the mobile device. Alternatively, the mobile device may receive information from the base station causing the mobile device to reduce the signal level of the received signal based on quality indicators sent by the mobile device to the base station or based on geographic location of the base station.

This invention provide parallel interference cancellation for wireless communication base stations. Received user inputs symbols are spread by means of pseudo-noise sequences to form user input chip vectors. These are added together and interpreted to form chip vectors of interference samples. These chip vectores are despread to form interference output symbols by pseudo-noise sequences. The interference output signals are subtracted from the received user input symbols to obtain a first estimate of transmitted symbols. This process may be continued for two or more iterations to obtain better interference cancellation.

The invention belongs to the technical field of civil construction foundation pit construction, and relates to a composite material pile-anchor supporting method. A glass fiber composite material pile-anchor supporting structure is adopted in foundation pit supporting, steel is saved, environment protection is achieved, the problem of component corrosion is fundamentally solved, operation and maintenance expenses of the structure are reduced, and the service life of the structure is prolonged; particularly when urban subway tunnel construction is conducted, at the cave entering position of a shield tunneling machine of fender piles, reinforcing steel bars are replaced with glass fiber bars, the shield tunneling machine can directly cut the fender piles for tunneling when entering a cave, and therefore the work of cutting off the reinforcing steel bars and chiseling a cave door in advance is avoided, the construction process can be simplified, the construction process can be accelerated, construction risks can be reduced, cost can be reduced, and disturbance to soil mass behind the fender piles can be reduced; and by improving the process, the detachable construction mode is achieved for novel pile-anchor supporting, cyclic utilization of waist beams can be further achieved, and the engineering cost can be reduced.

An adaptive SINR control process is triggered based on various quality measures associated with the received signal in a mobile device or on a geographic region in which a base station and an interferer are located. As part of the adaptive SINR control process, the mobile device reduces the signal level of the received signal, which reduces both the signal strength of the desired signal and the interfering signal. If the control process is triggered on the mobile device side, after detecting the presence of interference, the mobile device sends a request that the base station increase its transmit power of the desired signal to improve the receiving SINR in the mobile device. Alternatively, the mobile device may receive information from the base station causing the mobile device to reduce the signal level of the received signal based on quality indicators sent by the mobile device to the base station or based on geographic location of the base station.

An adaptive SINR control process is triggered based on various quality measures associated with the received signal in a mobile device or on a geographic region in which a base station and an interferer are located. As part of the adaptive SINR control process, the mobile device reduces the signal level of the received signal, which reduces both the signal strength of the desired signal and the interfering signal. If the control process is triggered on the mobile device side, after detecting the presence of interference, the mobile device sends a request that the base station increase its transmit power of the desired signal to improve the receiving SINR in the mobile device. Alternatively, the mobile device may receive information from the base station causing the mobile device to reduce the signal level of the received signal based on quality indicators sent by the mobile device to the base station or based on geographic location of the base station.

A beam steering antenna system for external antenna configurations for fixed and mobile communication devices is described where one or multiple beam steering antennas are integrated into a single external enclosure and where multiple enclosures containing beam steering antennas are used with a single communication device. Where multiple external enclosures are used with a single communication system such as a WLAN access point the beam steering antenna system provides an electrical means of optimizing antenna system and communication link performance as compared to mechanical means such as antenna enclosure positioning or orientation. Radiation mode selection for 2.4 GHz and 5 GHz antennas integrated into an external enclosure on a WLAN access point allows for independent optimization of the antenna systems for the two frequency bands without requiring antenna movement or positioning. If the antenna enclosures are movable or capable of rotation the beam steering antennas can be optimized for enclosure orientation.

The invention relates to an electrical connector, which includes an insulating body, first and second terminal groups and a shielding shell, the insulating body includes a base and a tongue protruding forward from the base, and the tongue includes a first A tongue plate and a second tongue plate connecting the base and the first tongue plate, the thickness of the first tongue plate is smaller than that of the second tongue plate, and the shielding shell includes the first and second terminal groups located in the tongue plate A horizontal shielding plate in between, a pair of covering sheets located on the upper and lower sides of the shielding plate, and a pair of connecting sheets connecting the shielding plate and the covering sheet, the covering sheet and the connecting sheet surround the outside of the first and second terminal groups, each A covering piece includes a front piece located on the second tongue plate, a back piece positioned behind the front piece and an intermediate piece connecting the front piece and the back piece, the pair of connecting pieces are connected to the left and right ends of the back piece, and And stagger left and right to improve signal interference between terminal groups and external electromagnetic interference.

The invention relates to an elastic piece connecting structure which comprises a first circuit board, an elastic piece and a second circuit board. A containing groove is formed in the upper surface of the first circuit board, the elastic piece comprises a welding end, a contacting end and a bending part, the welding end is arranged at one end of the elastic piece, the welding end is fixed on the upper surface of the first circuit board and connected with the first circuit board in an electrical mode, the contacting end is arranged at the other end of the elastic piece, the bending part is connected with the welding end and the contacting end, and the bending part of the elastic piece is placed in the containing groove. The second circuit board is arranged above the first circuit board in a parallel mode and connected with the contacting end of the elastic piece in the electrical mode, and therefore the second circuit board is connected with the first circuit board through the elastic piece in the electrical mode. According to the elastic piece connecting structure, the elastic piece is arranged in the containing groove which is formed in the upper surface of the first circuit board, the elastic piece is arranged between the first circuit board and the second circuit board, external leaking of radio-frequency signals is reduced notably through shielding of the two circuit boards, and the problem of signal interference between elastic pieces can be improved effectively.

The invention relates to a novel lathe grinding head which comprises a base. A frequency conversion motor set is arranged on the base, an alarm device is arranged at the top of the frequency conversion motor set, the frequency conversion motor set is connected with a transmission mechanism, a CPU controller is arranged at the top of the transmission mechanism, the transmission mechanism is connected with a transmission shaft, the transmission shaft is connected with a rotary index plate, the rotary index plate is fixedly connected with a grinding wheel, a protection cover is arranged on the grinding wheel, the protection cover is provided with a fixed speed instrument, and the fixed speed instrument is connected with the grinding wheel. The novel lathe grinding head is simple in structure,stable and firm; the CPU controller is adopted, the automatic degree is high, the mutual matching degree is high, errors are small, the working quality is improved, and the production time is shortened; the frequency conversion motor set serves as a motor set, the frequency is effectively converted, signal interference is avoided, and the working efficiency is improved; the fixed speed instrumentis used for effectively controlling the rotating speed of the grinding wheel, uniform rotation of the novel lathe grinding head within the safe scope is achieved, the machining surface quality is improved, and the service life is prolonged; and the rotary index plate can adjust the angle, the angle of the grinding wheel can be changed for polishing, and the accuracy is improved.