Mobile communications control including change of bit rate based on traffic and transmit power
AssigneeNtt Docomo, Inc.
InventorsNarumi Umeda, Yasushi Yamao, Lan Chen
Life of this patent
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Abstract
A mobile communication control system, which includes at least one mobile station and at least one base station, includes first through third parts. The first part measures traffic of radio channels in one or both of the above-mentioned at least one mobile station and the above-mentioned at least one base station. The second part measures a communications quality of radio channels in use. The third part determines a transmit power on a transmitting side and an information transmission bit rate on the basis of the traffic of the radio channels in use and information as to whether the transmit power on the transmitting side has reached a maximum transmit power.
Claims20
A mobile communication control system including at least one mobile station and at least one base station, said mobile communication control system comprising:
- a first part measuring traffic of radio channels in one or both of said at least one mobile station and said at least one base station;
- a second part measuring a communications quality of radio channels in use;
- and
- a third part determining a transmit power on a transmitting side and an information transmission bit rate on the basis of the traffic of the radio channels in use and information as to whether the transmit power on the transmitting side has reached a maximum transmit power.
A base station in a mobile communications system, comprising:
- a received level measuring circuit measuring a received level of radio channels in use in order to recognize a traffic of the radio channels;
- a received CIR (Carrier Interference Ratio) measuring circuit measuring a received CIR of an associated one of the radio channels in order to measure a communications quality of each of the radio channels;
- and
- a base station control unit determining a transmit power of a mobile station and an information transmission bit rate on the basis of the traffic of the radio channels in use and information as to whether the transmit power of said mobile station has reached a maximum transmit power.
A mobile station in a mobile communications system, comprising:
- a received CIR (Carrier Interference Ratio) measuring circuit measuring a received CIR of one of an associated one of radio channels in use in order to measure a communications quality of said radio channel;
- and
- a control unit which controls a transmit power and an information transmission bit rate of the mobile station in accordance with a control signal regarding the transmit power and the information transmission bit rate sent by a base station and which proposes to the base station that the information transmission bit rate is reduced on the basis of a traffic of radio channels in use and information as to whether the transmit power of the mobile station has reached to a maximum transmit power.
A mobile communications control method comprising the steps of:
- measuring a received level of radio channels in use in order to recognize a traffic thereof;
- measuring a received CIR (Carrier Interference Ratio) of a radio channel in order to measure a communications quality of said radio channel;
- and
- determining a transmit power of a mobile station and an information transmission bit rate on the basis of the traffic of the radio channels and information as to whether the transmit power of said mobile station has reached a maximum transmit power.
A mobile communications control method comprising the steps of:
- measuring a received CIR (Carrier Interference Ratio) of a radio channel in use in order to measure a communications quality of said radio channel;
- and
- controlling a transmit power of the mobile station and an information transmission bit rate in accordance with a control signal regarding the transmit power and the information transmission bit rate sent by a base station;
- and
- proposing to the base station that the information transmission bit rate is changed on the basis of a traffic of radio channels in use and information as to whether the transmit power of the mobile station has reached to a maximum transmit power.
Dependencies are inferred from the claim text.