366 results about "Idle channel" patented technology

The embodiment of the invention discloses a method for using DRX in a non-authorized frequency band. The method comprises the steps of configuring non-continuous received DRX parameters for UE to obtain the DRX activating time and the DRX sleeping time of the UE; sending the DRX parameters to the UE; setting information of CCA detection time of an idle channel of the UE at the non-authorized frequency band; sending the first indication information to the UE to indicate the UE to wake up at the CCA time in the non-authorized frequency band so as to monitor the channel of the non-authorized frequency band; sending the data according to the CCA time of the UE at the non-authorized frequency band, and the DRX activating time and the DRX sleep time of the UE. According to the technical scheme, the method has the advantages that the UE can effectively monitor the channel of the non-authorized frequency band while the power consumption of the UE at the non-authorized frequency band is reduced; the LTE device and the WiFi device can fairly share the resources in the non-authorized frequency band.

A method for selecting one channel from a plurality of channels in a wireless network system is disclosed. The channels include at least one in-use channel, a first idle channel, and a second idle channel. The method includes comparing the frequency band of the in-use channel with the frequency band of the first idle channel and the second idle channel to determine a first reference value for the first idle channel and a second reference value for the second idle channel, and comparing the first reference value with the second reference value to select one from the first idle channel and the second idle channel.

Associated systems and methods for providing data services using idle cell capacity in a communications system. The systems and methods assign priorities to each remote user device in the communications system. In response to a request for service for a remote user device, the switch determines whether an idle channel is available for the remote user device. If no idle channel is available, the switch determines whether a remote user device with a lower priority than the requesting remote user device is using a channel. If a lower priority remote user device is using a channel, its call is terminated and the channel is assigned to the requesting remote user device. If no lower priority remote user device is using a channel, the request for service is put into an ordered queue to wait for the next available idle channel.

In retransmission processing due to a failure of transmission of data packets, a plurality of data packets are simultaneously transmitted between two STAs by utilizing multiple wireless channels and MIMO, and the number of idle channels and the number of retransmission packets are compared. Then, when both of the numbers are different or only when the number of idle channels is larger than the number of retransmission packets, the retransmission packets are reconstructed according to the number of idle channels, and the reconstructed retransmission packets are simultaneously transmitted by using the idle channels.

The invention discloses a method and a device of remote uderwater acoustic communication. The device comprises more than one underwater communication nodes and more than one abovewater communication buoys which are responsible for communication with more than one underwater communication nodes within a set distance range through an underwater acoustic channel; and the communication connection is carried out between the abovewater communication buoys through a land wireless channel. In the method, the multi-frequency band combination is adopted to sent data in parallel, and the remote communication is realized by uniting the communication buoys; in the remote communication, a three-time handshake protocol in the carrier sense multiple access (CSMA) needs not to be used in the communicationbetween the underwater communication nodes and the buoys, while a channel can be directly monitored in a full frequency range; the data are synchronously sent to the abovewater communication buoys inparallel on each subchannel on the monitored idle channel by utilizing a frequency modulation method; and the data is transmitted by the abovewater communication buoys through a radio wave manner. Bythe method and device provided by the invention, one-time successful transmission probability of the two parties of the communication can be improved, and the anti-interference performance of a system is enhanced.

Data packets are transmitted between two STAs capable of using plural radio channels and MIMO together, by using idle channels and MIMO. When at least one idle channel has been detected, plural data packets are generated in the same number as the sum of MIMO numbers of the respective idle channels, in which the data packets are generated from one or plural data frames, and plural data packets having the same packet time length are transmitted simultaneously between the two STAs by using the idle channels and MIMO.

An embodiment of the invention discloses a dynamic frequency hopping access method and apparatus which can detect idle channel. When detected idle channel is occupied by identification user apparatus, usable frequency congregation composed of said idle channel is determined, and channel is selected from said usable frequency congregation for composing frequency hopping congregation. The frequency hopping list is generated according with said frequency hopping congregation, and frequency hopping communication is processed according with channel of said frequency hopping list applied to said frequency hopping congregation. When detected idle channel is full idle channel, fixed frequency can be processed by using detected full idle channel. The method and apparatus can reduce cost of system access, and increase system safety obviously at the same time reducing access collision, and has better access fairness; so access effectiveness can be increase, also user satisfaction degree can be increase obviously.

This invention relates to an audio test system and a method of mobile communication terminals, in which, the sytem includes: a radio communication base station simulator, an audio test analyzer, a system control platform, a noise eliminating chamber, a preamplifier and an acoustic simulation device, said method includes test to the evaluation values of transmission loudness and receiving loudness, noise of idle channels, transmission flexibility / frequency character, receiving flexibility / frequency character, evaluation value of side sound mask, loss of stability, echo control of acoustics and T-R distortion, and also includes evaluation value of side sound mask, out-of-band signals and suppression to environmental noise of listeners.

A wireless communication apparatus for performing wireless communication using at least one of the first channel having the first frequency band, and the second channel having the second frequency band which is wider than the first frequency band includes a channel search device which executes the first channel search for the bandwidth of the first frequency band and the second channel search for the bandwidth of the second frequency band, and obtains a search result indicating an idle channel, and a determination device which determines a channel to be used on the basis of the search result obtained by the channel search device.

The invention provides a system and method for realizing I2C bus expansion by using a CPLD. The system comprises a BMC, a CPLD and a slave device. The method comprises the steps that firstly, the BMCcommunicates with the CPLD through a front-end I2C bus, and an internal register of the CPLD is configured through addressing action of the CPLD; Then, the configuration logic module analyzes the configuration data of the front-end I2C and outputs a control signal and a channel selection signal; and the channel control logic module establishes mapping between the front-end I2C wire and the rear-end I2C bus according to the control signal and the channel selection signal output by the configuration logic module. And finally, the BMC accesses the slave device connected with the rear-end I2C bus.Through the method, the device and the system, The CPLD is used for expanding the I2C bus, the hardware cost is reduced, the occupied PCB area is reduced, the circuit structure is simplified, the number of the expanded I2C paths can be configured according to the number of slave devices, no waste idle channel exists, the I2C address of the CPLD is 7-bit configurable, and the I2C address conflictis reduced.