Wireless base station device
First Claim
1. A wireless base station device, comprising:
- a wireless unit for performing wireless communications with a mobile station;
a reception memory unit for storing therein reception spectrum spread data per sample as reception data, wherein the reception spectrum spread data is received by the wireless unit and sequentially sampled;
a baseband reception unit for processing and decoding the reception data stored in the reception memory unit;
a common downlink channel reception unit, activated at a start-up of the wireless base station device, for receiving a downlink signal of other base station devices by using the reception data stored in the reception memory unit;
a frame protocol processing unit including an interface for communicating with a wired transmission line for an upper-level device, for performing a frame protocol processing for the interface to convert a transmission channel format with respect to an uplink signal received by the baseband reception unit and a downlink signal transmitted from the upper-level device;
a baseband transmission unit for encoding downlink data outputted from the frame protocol processing unit, and digitally modulating to output encoded data;
a spread processing unit for spread-modulating the encoded data outputted from the baseband transmission unit to output spread-modulated data to the wireless unit; and
a call controller for controlling an allocation of processing resources for each of the units when a new call is received by the wireless base station device,wherein parameters including a spreading code and a transmission power required for installing the wireless base station device are automatically set by operating the common downlink channel reception unit at the start-up of the wireless base station device to detect notification information and signal levels of neighboring base station devices.
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Abstract
A wireless base station device includes a wireless unit for performing wireless communications with a mobile station; a reception memory unit for storing therein reception spectrum spread data as reception data; a baseband reception unit for processing and decoding the reception data stored in the reception memory unit; a common downlink channel reception unit for receiving a downlink signal of other base station devices; a frame protocol processing unit for converting a transmission channel format; a baseband transmission unit for outputting encoded data; a spread processing unit for outputting spread-modulated data to the wireless unit; and a call controller for controlling an allocation of processing resources. Parameters including a spreading code and a transmission power required for installing the wireless base station device are automatically set by operating the common downlink channel reception unit to detect notification information and signal levels of neighboring base station devices.
136 Citations
3 Claims
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1. A wireless base station device, comprising:
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a wireless unit for performing wireless communications with a mobile station; a reception memory unit for storing therein reception spectrum spread data per sample as reception data, wherein the reception spectrum spread data is received by the wireless unit and sequentially sampled; a baseband reception unit for processing and decoding the reception data stored in the reception memory unit; a common downlink channel reception unit, activated at a start-up of the wireless base station device, for receiving a downlink signal of other base station devices by using the reception data stored in the reception memory unit; a frame protocol processing unit including an interface for communicating with a wired transmission line for an upper-level device, for performing a frame protocol processing for the interface to convert a transmission channel format with respect to an uplink signal received by the baseband reception unit and a downlink signal transmitted from the upper-level device; a baseband transmission unit for encoding downlink data outputted from the frame protocol processing unit, and digitally modulating to output encoded data; a spread processing unit for spread-modulating the encoded data outputted from the baseband transmission unit to output spread-modulated data to the wireless unit; and a call controller for controlling an allocation of processing resources for each of the units when a new call is received by the wireless base station device, wherein parameters including a spreading code and a transmission power required for installing the wireless base station device are automatically set by operating the common downlink channel reception unit at the start-up of the wireless base station device to detect notification information and signal levels of neighboring base station devices. - View Dependent Claims (3)
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2. A wireless base station device, comprising:
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a wireless unit for performing wireless communications with a mobile station and other wireless base station devices; a reception memory unit for storing therein reception spectrum spread data per sample as reception data, wherein the reception spectrum spread data is received by the wireless unit and sequentially sampled; a baseband reception unit for processing and decoding the reception data accumulated in the reception memory unit; a frame protocol processing unit including an interface for communicating with a wired transmission line for an upper-level device, for performing a frame protocol processing for the interface to convert a transmission channel format with respect to an uplink signal received by the baseband reception unit and a downlink signal transmitted from the upper-level device; a baseband transmission unit for encoding downlink data outputted from the frame protocol processing unit, and digitally modulating to output encoded data; a spread processing unit for spread-modulating the encoded data outputted from the baseband transmission unit to output spread-modulated data to the wireless unit; and a call controller for controlling an allocation of processing resources for each of the units when a new call is received by the wireless base station device, wherein, at a start-up of the wireless base station device, at least a part of a baseband signal processing is converted into a reception process for receiving a downlink signal from other base station devices, and neighboring base station devices are searched, so that, if an effective cell detected, a transmission frequency of the wireless unit is set to be identical to a frequency of the effective cell, and a spreading code used for the spread processing unit is set to be different from that of the effective cell.
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Specification