Mobile station, base station, communication system, data volume information transmitting method, transmission control information notifying method, and radio communication
A technology for controlling information and communication systems, applied in wireless communication, electrical components, etc., can solve problems such as inability to properly control transmission timing, base station cannot grasp the amount of communication business data, etc.
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Embodiment 1
[0060] figure 1 is a configuration diagram showing a communication system according to Embodiment 1 of the present invention. In the figure, the communication system is constituted by a mobile station 1, a base station 2, and a base station control device 3.
[0061] The base station 2 covers a specific communication range (generally referred to as an area or a cell), and performs wireless communication with a plurality of mobile stations 1 . However, for the sake of illustration, figure 1 Only one mobile station 1 is shown in , but there may be more than one. Multiple wireless links (or channels) are used for communication between the mobile station 1 and the base station 2 .
[0062] The base station control device 3 is connected to an external communication network 4 such as a public telephone network and the Internet, and relays data packet communication between the base station 2 and the communication network 4 .
[0063] In the W-CDMA standard, the mobile station 1 i...
Embodiment 2
[0249] Figure 15A It is an explanatory diagram showing an example of data amount information of a buffer by communication service and an index of its combination, Figure 15B It is an explanatory diagram showing an example of the data amount information of the transmission buffers 32a and 32b for each radio link control unit 12 and the index of the combination thereof.
[0250] In the figure, "data amount / guaranteed bit rate" (unit: sec) is used as an expression method of data amount information representing data stored in the buffer.
[0251] Figure 16 It is an explanatory diagram showing the quality of service (QoS: Quality of Service) classified according to the type (Class) of the communication service in order to enable the notification of the data amount in the form of "data amount / guaranteed bit rate" / unit: sec). In addition, the regulation of QoS is made in the standard book TS23.107. The above-mentioned guaranteed bit rate is recorded in the standard as GBR (Guar...
Embodiment 3
[0268] Figure 18A It is an explanatory diagram showing an example of data amount information of a buffer by communication service and an index of its combination, Figure 18B It is an explanatory diagram showing an example of the data amount information of the transmission buffers 32a and 32b for each radio link control unit 12 and the index of the combination thereof.
[0269] In the figure, as an information expression method indicating the data volume of the data stored in the transmission buffer of the mobile station 1, the "data volume / guaranteed bit rate" (unit: sec) obtained by dividing "data volume / guaranteed bit rate" (unit: sec) by TTI used as a communication time unit is used. value. Here, TTI is the unit time for data transmission from the media access control unit 13 to the physical layer control unit 14, and conventional standards use 2 / 10 / 20 / 40 / 80 msec and so on.
[0270] When implementing a certain communication service, which TTI time length is selected, be...
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