Apparatus and method of controlling transmitting power in a subscriber terminal of a wireless telecommunications system
First Claim
1. A method of controlling transmitter power in a subscriber terminal from a central terminal in a wireless telecommunications system, comprising the steps of:
- establishing a downlink communication path from a transmitter of the central terminal to a receiver of the subscriber terminal;
transmitting a downlink signal from the transmitter of the central terminal, the downlink signal having a traffic carrying channel, the downlink signal having an overhead channel to transfer control information separate from the traffic carrying channel, the overhead channel including a power control signal;
extracting the power control signal from the overhead channel of the downlink signal at the receiver of the subscriber terminal;
adjusting a transmitting power of a transmitter in the subscriber terminal in response to a value of the power control signal in order to establish an uplink communication path between the transmitter in the subscriber terminal and a receiver in the central terminal.
14 Assignments
0 Petitions
Accused Products
Abstract
A wireless telecommunications systems (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The downlink signal (212) includes an overhead channel (224) having a power control signal (236). The power control signal (236) is capable of adjusting a transmitting power of a transmitter (204) in the subscriber terminal (20). Adjustment of the transmitting power of the transmitter (204) facilitates establishment and maintenance of an uplink communication path between the transmitter (204) of the subscriber terminal and a receiver (206) of the central terminal (10).
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Citations
26 Claims
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1. A method of controlling transmitter power in a subscriber terminal from a central terminal in a wireless telecommunications system, comprising the steps of:
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establishing a downlink communication path from a transmitter of the central terminal to a receiver of the subscriber terminal; transmitting a downlink signal from the transmitter of the central terminal, the downlink signal having a traffic carrying channel, the downlink signal having an overhead channel to transfer control information separate from the traffic carrying channel, the overhead channel including a power control signal; extracting the power control signal from the overhead channel of the downlink signal at the receiver of the subscriber terminal; adjusting a transmitting power of a transmitter in the subscriber terminal in response to a value of the power control signal in order to establish an uplink communication path between the transmitter in the subscriber terminal and a receiver in the central terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for controlling transmitting power in a wireless telecommunications system, comprising:
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a transmitter at a central terminal for transmitting a downlink signal, the downlink signal having a traffic carrying channel, the downlink signal having an overhead channel to transfer control information separate from the traffic carrying channel, the overhead channel including a power control signal; a receiver at a subscriber terminal for receiving the downlink signal, the receiver of the subscriber terminal operable to extract the power control signal from the downlink signal; a transmitter at the subscriber terminal for transmitting an uplink signal, the transmitter of the subscriber terminal operable to receive the power control signal, the power control signal operable to adjust a transmitting power of the transmitter. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification