Wireless local loop with intelligent base station
First Claim
1. A communication system, comprising:
- a wireless unit comprising a first transmitter and a first receiver;
an intelligent base station to operate without a base station controller, the intelligent base station comprising a second transmitter, a second receiver, an over-the-air processor, a line processor, and an internal signaling protocol layer, the over-the-air processor to manage communication between the intelligent base station and the wireless unit over a wireless communication channel, the line processor comprising a base station subsystem management application part (BSSMAP), a signaling connection control part (SCCP), and a message transfer part (MTP), the internal signaling protocol layer to allow communication of signaling information between the over-the-air processor and the line processor;
a non-wireless unit to be connected to the wireless unit, the non-wireless unit to exchange information with the intelligent base station using the wireless unit; and
a mobile switching center to be coupled to the intelligent base station over an interface.
1 Assignment
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Accused Products
Abstract
A communication system for providing wireless local loop services comprises an intelligent base station for communicating with one or more customer premises remote units (CPRUs), each of which connects to a non-wireless device. Each CPRU has a wireless transceiver for over-the-air communication with the intelligent base station. The intelligent base station connects, without the assistance of a base station controller, to a mobile switching center (MSC), through a GSM A-interface or a specialized derivative thereof, and thereby to a public switched telephone network (PSTN). The intelligent base station employs a subset of GSM functionality, enabling the CPRU to take advantage of various advanced telephony features. A transcoder and rate adapter unit may be added between the intelligent base station and the mobile switching center. The intelligent base station may be capable of communicating with both mobile users and fixed wireless local loop customers, using time division multiple access (TDMA) to communicate with multiple users. The intelligent base station may transmit and receive messages using spread spectrum encoding. If mobility is provided within the system, intelligent base stations within a cluster may be connected over physical links so that signalling and bearer channels supporting a call from a mobile user are tunneled through one intelligent base station to the other during handover.
40 Citations
31 Claims
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1. A communication system, comprising:
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a wireless unit comprising a first transmitter and a first receiver; an intelligent base station to operate without a base station controller, the intelligent base station comprising a second transmitter, a second receiver, an over-the-air processor, a line processor, and an internal signaling protocol layer, the over-the-air processor to manage communication between the intelligent base station and the wireless unit over a wireless communication channel, the line processor comprising a base station subsystem management application part (BSSMAP), a signaling connection control part (SCCP), and a message transfer part (MTP), the internal signaling protocol layer to allow communication of signaling information between the over-the-air processor and the line processor; a non-wireless unit to be connected to the wireless unit, the non-wireless unit to exchange information with the intelligent base station using the wireless unit; and a mobile switching center to be coupled to the intelligent base station over an interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for wireless communication in a local loop comprising:
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establishing a plurality of wireless communication channels between a plurality of wireless units and an intelligent base station, the intelligent base station operation without a base station controller, the intelligent base station comprising; an over-the-air processor, the over-the-air processor managing communication between the intelligent base station and the plurality of wireless units; a line processor comprising a base station subsystem management application part (BSSMAP), a signaling connection control part (SCCP), and a message transfer part (MTP); and an internal signaling protocol layer, the internal signaling protocol layer allowing communication of signaling information between the over-the-air processor and the line processor; connecting a plurality of non-wireless units to the wireless units, at least one non-wireless unit being connected to each wireless unit; exchanging information between the non-wireless units and the intelligent base station using the corresponding wireless unit as an intermediary; and connecting the intelligent base station to a GSM mobile switching center. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A communication system, comprising:
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a plurality of wireless units, each of the wireless units comprising a local transmitter and a local receiver; an intelligent base station capable of communicating with the plurality of wireless units using a plurality of wireless communication channels without a base station controller, the intelligent base station comprising; an intelligent base station transmitter; an intelligent base station receiver; an over-the-air processor, the over-the-air processor managing communication between the intelligent base station and the plurality of wireless units; a line processor comprising a base station subsystem management application part (BSSMAP), a signaling connection control part (SCCP), and a message transfer part (MTP); and an internal signaling protocol layer, the internal signaling protocol layer allowing communication of signaling information between the over-the-air processor and the line processor; a plurality of non-wireless units, each of the non-wireless units to be connected to one of the wireless units and to exchange information with the intelligent base station using the corresponding wireless unit to which it is to be connected; and a mobile switching center to be connected to the intelligent base station across an interface. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification