Data transmission method, base station, and subscriber terminal
First Claim
1. A data transmission method in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with terminal equipment of users, located within an area served by the respective base station signals of the terminal equipment being divided into bursts in the time domain, said method comprising:
- monitoring by each base station of the load state of said traffic channel and the delay state of the bursts to be transmitted;
each base station sending the terminal equipment in the respective area information about the load state of said traffic channel; and
controlling by each base station of the number of bursts to be transmitted between the terminal equipment in the respective area and the respective said base station per time unit on the basis of the delay state of the bursts and the load state information computed at the respective said base station.
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Accused Products
Abstract
A base station, subscriber terminal, and data transmission method in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with the terminal equipments (Mobile Station) located within its area, the signal of the users being divided in the method into bursts in the time domain. To achieve high traffic capacity together with high-quality connections, the base station monitors the load state of the traffic channel in the data transmission method of the invention and transmits information about the load state of the traffic channel to the terminal equipments. In the method, the number of the bursts transmitted between the terminal equipments and the base stations per time unit is controlled on the basis of the delay state of the bursts and the load state information computed at the base station.
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Citations
19 Claims
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1. A data transmission method in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with terminal equipment of users, located within an area served by the respective base station signals of the terminal equipment being divided into bursts in the time domain, said method comprising:
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monitoring by each base station of the load state of said traffic channel and the delay state of the bursts to be transmitted; each base station sending the terminal equipment in the respective area information about the load state of said traffic channel; and controlling by each base station of the number of bursts to be transmitted between the terminal equipment in the respective area and the respective said base station per time unit on the basis of the delay state of the bursts and the load state information computed at the respective said base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A data transmission method in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with terminal equipment of users, located within an area served by the respective base station, signals of the terminal equipment being divided into burst in the time domain, said method comprising:
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monitoring by each base station of the load state of said traffic channel and the delay of state of the bursts to be transmitted; storing each burst sent to each respective individual said terminal equipment of a plurality of said terminal equipment with which a respective said base station communicates on respective connections in a respective buffer memory at the respective said base station before transmitting respective said bursts; and causing the number of the bursts transmitted by each said base station to the respective said terminal equipment per time unit to depend on the number of the bursts stored in the respective said buffer memories. - View Dependent Claims (14)
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15. A base station for use in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with the terminal equipment located within an area served by the respective base station said base station comprising:
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means for dividing a signal to be transmitted to the respective said terminal equipment into bursts in the time domain; means for monitoring the load state of said traffic channel; means for transmitting information about the load state of said traffic channel as monitored, to the respective said terminal equipment; means for storing the bursts in a buffer memory; and means for controlling transmission of the bursts to the respective said terminal equipment on the basis of the traffic channel capacity and the number of the bursts stored in buffer memory. - View Dependent Claims (16)
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17. A terminal equipment for use in a CDMA cellular radio network having in each cell at least one base station which communicates on a specified traffic channel with the terminal equipment located within an area served by the respective base station, said terminal equipment comprising:
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means for dividing a signal to be transmitted to the respective said base station into a plurality of bursts in the time domain, said bursts being subject to delays each having a delay state; and means for controlling the number of the bursts to be transmitted to the respective said base station per time unit on the basis of the instantaneous traffic load of the traffic channel and the delay states of the bursts. - View Dependent Claims (18, 19)
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Specification