60 results about "Multipath communication" patented technology

Communication signal equalization methods and systems are disclosed. A CDMA signal having a data portion and a known portion including a known or repeated data sequence and received over a multipath communication channel represents a linear convolution between the multipath channel and a transmitted CDMA signal. A channel estimate of the communication channel is determined from the known portion, and the CDMA signal is translated into a new CDMA signal which is a cyclic convolution with the channel estimate. A frequency domain representation of the new CDMA signal is adjusted using the channel estimate to produce a frequency domain representation of an equalized signal.

The invention relates to a data communication protocol controller applicable to satellite borne equipment. The controller comprises a control register, a status register, an input cache and an output cache which are all electrically connected with an internal bus, wherein the control register 1 is in electrical connection with a digital quantity input time-sequence control logic array and a digital quantity output time-sequence control logic array through signal wires; a control signal of the digital quantity input time-sequence control logic array is in electrical connection with a serial-in shift register and an external digital quantity input channel; the serial-in shift register is in electrical connection with the input cache through an input parallel data wire; a control signal of the digital quantity output time-sequence control logic array is in electrical connection with a serial-out shift register and an external digital quantity output channel; and the serial-out shift register is in electrical connection with the output cache through a parallel output data wire. The data communication protocol controller solves the problem of automatic control on multiple communication protocols and multipath communication channels, realizes light-minimization of a data acquisition unit, and is established based on a digital logic hardware circuit, so that reliability and stability of the controller can be sufficiently guaranteed.

The method and mobile ad hoc network include the use of a plurality of mobile nodes. A main communication path is established from a source node through intermediate nodes to a destination node. Alternative communication paths are established among intermediate nodes defined as standby nodes to define a multipath communication pathway from the source node to the destination node. The nodes include a controller and a wireless communications device cooperating therewith. Link quality is monitored by at least one intermediate node to neighboring nodes in the multipath communication pathway, and the main communication path is reconfigured within the multipath communication pathway to at least one of the alternative communication paths based upon monitored link quality.

Communication signal equalization methods and systems are disclosed. A CDMA signal having a data portion and a known portion including a known or repeated data sequence and received over a multipath communication channel represents a linear convolution between the multipath channel and a transmitted CDMA signal. A channel estimate of the communication channel is determined from the known portion, and the CDMA signal is translated into a new CDMA signal which is a cyclic convolution with the channel estimate. A frequency domain representation of the new CDMA signal is adjusted using the channel estimate to produce a frequency domain representation of an equalized signal.

A system comprises a first storage system, a second storage system, a plurality of switches, and a server connected with the first storage system via a first group of switches and connected with the second storage system via a second group of switches. The first group and the second group have at least one switch which is not included in both the first and second groups. The first storage system receives I / O commands targeted to first logical units from the server via the first group of switches. The first storage system maintains first information regarding the ports of both the first and second storage systems. The first information is used to generate multipath communication between the server and the first storage system, including at least one path which passes through the second storage system and at least one other path which does not pass through the second storage system.

The invention discloses a microwave detection component. The microwave detection component comprises an insulation layer and a first magnetic layer arranged opposite to the insulation layer. When a bias voltage is applied to the insulation layer, an interface of the insulation layer adjacent to the first magnetic layer generates an electric field or stress deformation to change magnetism of the first magnetic layer. The microwave detection component is based on electric field regulation and control, and the anisotropy magnetoresistance effect or the giant magnetoresistance effect is utilized to realize microwave detection. According to the microwave detection component, in the microwave detection process, the electric field but not the current effect is employed, power consumption of devices can be effectively reduced, properties of small size, low power consumption and high sensitivity are realized, microwave detection with the high signal to noise ratio can be realized, moreover, operation under the normal temperature can be realized, a detection mode is not limited, and the microwave detection component can be widely applied to the microwave energy transmission and multipath communication fields. The invention further discloses a microwave detector equipped with the microwave detection component.

An apparatus and method for enhancing data availability by implementing inter-storage-unit communication in a data processing system. A Remote Volume Mirroring (RVM) system may be leveraged according to the present invention to provide volume failover by enhancing the functionality of the arrays, in a manner transparent to a host.

The invention discloses a transmission layer multipath communication method and system, and the method comprises the steps: an MPTUP layer is deployed between an application layer and a transmission layer of a network protocol; Initiating a connection between the connection initiator and the connection receiver in a first preset mode, Wherein the connection initiator and the connection receiver carry out data communication through TCP connection, and when the connection initiator and the connection receiver both support MPTUP transmission layer multi-path transmission, data are sent and received by establishing a UDP sub-stream; the connection initiator or the connection receiver can disconnect the UDP sub-streams; And the connection initiator or the connection receiver stops the multi-path transmission of the MPTUP transmission layer and ends the data communication in a second preset mode. The method supports multi-path transmission, network bandwidth resources are fully utilized, network link load balancing is achieved, and standard TCP can be used for communication when an end host does not support MPTUP.

The purpose of the disclosed technology is to provide a method for controlling wireless communication, a wireless communication system, a reception device, and a transmission device with which it is possible for a wireless base station to fully ascertain downlink channel characteristics when performing multipath communication in which a plurality of transmission antennas are used. In order to solve the problem and achieve the purpose mentioned above, the disclosed method for controlling wireless communication is a control method in a wireless communication system provided with a transmission device equipped with a plurality of transmission antennas and a reception device equipped with at least one reception antenna, wherein: the reception device receives, via a specific reception antenna that is one of the at least one reception antenna, a reference signal transmitted from each of the plurality of transmission antennas; the reception device determines, on the basis of the reference signal, a transmission antenna weight and a receiving antenna weight that are applied when only the specific reception antenna receives a signal transmitted by each of the plurality of transmission antennas on the basis of the same transmission data; and the reception device transmits first information pertaining to the transmission antenna weight and second information pertaining to the reception antenna weight to the transmission device.

The invention relates to a high stop-band inhibiting multi-zero 2.4 GHz mini filter, comprising an input / output interface arranged on the surface, two parallel-resonance units, an interstage coupling electric capacity and an inductance and two sets of zero set circuits; and all the parts are produced by low temperature co-fired ceramic technology. The mini filter has the advantages of small volume, light weight, high reliability, excellent electric property, linear change of phase frequency character, good temperature stability, excellent consistency of electric property indicator batch, low cost for multitudinous production and the like, especially applicable to Bluetooth transmission, industry, science and medication (ISM) frequency range transmission, corresponding microwave frequency range communication, digital radar, single soldier satellite movement, communication terminals, military and civil multimode and multipath communication system terminals, wireless communication hand-hold terminals and other corresponding systems with strict requirements on volume, weight, property and reliability.

A method of managing feedback messages in a multipath communication network, the method comprising selecting at least one communication path out of a set of communication paths between a first communication device and a second communication device in order to transmit at least one feedback message from the first communication device to the second communication device. The selecting is based on a correlation between at least one transmission condition on said at least one communication path and at least one transmission constraint for said at least one feedback message.Embodiments make it possible to provide optimal transmission of feedback messages in a multipath context.

An approach for multipath communication of a terminal via a gateway is provided. The approach includes storing a whitelist including applications corresponding to multipath communication applicable objects, and generating, when a first application included in the whitelist is executed, at least one path connected to the gateway using at least one of multiplex communication interfaces.