摘要:
In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.
摘要:
A smooth and seamless terminal switching guaranteeing continuity of communication at an application level is realized. A call control part for setting and managing a physical and logical transmission path between communication terminals, a session management part for managing establishment of data communication between the communication terminals, and a switching request processing unit for controlling interruption and resumption of a session are provided, wherein the switching request processing unit exercises a function to temporarily interrupt a session after receiving a session switching request signal from a communication terminal, a function to instruct the call control part to establish a call connection with a switch destination communication terminal, a function to establish a session with an application on the switch destination communication terminal, and a function to resume, after establishing the session, a session with a communication terminal of an opposite side.
摘要:
In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.
摘要:
In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.
摘要:
It is possible to effectively control information on allocation of a radio resource for each mobile station, improve the frequency use efficiency of the entire communication system, and effectively execute base station/mobile station control. A mobile station holds a Chunk Table (TB) in advance (S1) and successively receives SCSCH of each predetermined available Chunk from the head of the radio frame (S2). If the SCSCH has a mobile station identifier of the mobile station assigned, the mobile station receives SDCH of the corresponding RB and acquires CID (Chunk ID) (S3). Here, user data may be simultaneously contained in the SDCH. The mobile station registers the acquired CID in the Chunk Table (S4). Moreover, the base station side also has the Chunk Table corresponding to each mobile station and manages whether CID has been allocated for each mobile station.
摘要:
In a method for mapping an operating frequency band of a mobile station device in a mobile communication system, an operating frequency band position at the time of idle mode of respective mobile station devices is arranged so as to be distributed throughout a unique frequency bandwidth of a base station device.
摘要:
The image processing apparatus includes a change detecting portion for outputting a first control signal indicating transition from a small change state to a large change state and a second control signal indicating transition from a large change state to a small change state between picture planes of input motion picture data, and an operation control portion for controlling starting and stopping of recording or transmission of input motion picture data according to the first control signal and the second control signal. During recording or transmission, the operation control portion controls to stop recording or transmission if the first control signal is not output until after a predetermined arbitrary time T1 elapses after the second control signal is output.
摘要:
A video coding and decoding device for encoding and decoding video signal by dividing the video signal by dividing the video signal into frequency bands in advance of coding, wherein the timing of refreshing respective frequency bands independently controlled, so as to realize sequential periodical refreshment of every frequency bands, and an increase in refresh-rate for lower-frequency bands. A refresh-control portion determines the frequency bands to be refreshed, and then sends a refresh-command to coding mode selecting portions. Upon receipt of the refresh command, the coding mode selecting portions transfer intraframe-prediction coded information and interframe-prediction coded information.
摘要:
A video-coding device and a video-decoding device, which are capable of assuring the necessary quality of a video sequence even if a transmission error and/or a loss of information occurs in a transmission line and preventing the propagation of decoding error to subsequent images, and can effectively retransmit the necessary coded information when a transmission error and/or a loss of information occurs in a transmission line. A motion-compensated interframe-predicting portion predicts an input image by using a preceding decoded image stored in a frame memory portion and outputs motion vectors. A difference calculating portion determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions. A loop-back control portion decides whether each of the coded frequency-band-components of the coded prediction-error signal from respective coding portions is input to a synthesizing portion and outputs a decoded prediction-error signal. The predicted image signal and the decoded prediction-error signal are combined to generate a decoded image signal corresponding to the input image. The decoded image signal is used for prediction of a subsequent input image. A motion-compensated interframe-predicting portion predicts an input image by using a preceding decoded image stored in a frame memory portion and outputs motion vectors. A difference calculating portion determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions for quantizing and encoding the respective components. Buffer portions store the coded information and output the information to an external circuit. The buffers output respective frequency-band-components of the coded information according to retransmission request signals from a retransmission control portion.
摘要:
In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.