Abstract: A method for providing repeater communication in a wireless repeater deployed in a multi-repeater environment includes inserting a message signal into the transmit signal of the repeater. The message signal may be a unique or quasi-unique low power spreading sequence uniquely identifying the repeater from other repeaters in the environment. The message signal may also contain information relating to the operational characteristics of the repeater. The message signal may be detected by another repeater or by an end-user wireless communication device.

Abstract: A repeater that facilitates communication in a wireless environment comprises a scheduling component that analyzes a schedule relating to when communications are active in the forward link direction and when communications are active in the reverse link direction, the communications are subject to time division duplexing. An amplifier that amplifies received communications as a function of the schedule. The repeater can further comprise a configuration component that configures the amplifier to amplify the received communications in one or more of a forward link direction and a reverse link direction.

Abstract: Methods and systems are provided to configure a frequency repeater. The frequency repeater is configured with an identity of a service provider and receives a message that defines a set of frequencies to be repeated, the frequencies are associated with a service provider that matches the preconfigured identity. A digital filter receives an incoming signal from the service provider, and filters and repeats the frequencies defined in the received message. The frequency receiver can also determine a set of frequencies to be filtered and repeated based on a cell search procedure performed with a modem that resides in the repeater. A policy established by the service provider can also be utilized to facilitate defining the set of figures to be repeated. By utilizing a signal quality metric and an isolation metric associated, with the performance of a receive and transmit antenna utilized by the repeater, the set of frequencies to be filtered and repeated can be adapted in real time.

Abstract: An indoor base transceiver system (BTS) provides economical coverage by having a network-coupled base station that monitors a plurality of remote transceiver units (RTUs), or RF nodes, communicating by base-band conduits at symbol data rate. The BTS can reduce cost by interconnecting coverage nodes at the bit rate and can reduce cost by interconnecting coverage nodes at the symbol rate. The BTS can implement the modulation/demodulation function in a split fashion, with part of this accomplished in the RF Node and part accomplished in an Aggregator of the base station. System capacity can be retained by using selection combining and by using maximal ratio combining. Multiple carriers can be supported by messaging on the signal link and performing the frequency selection/generation at the remote Node. Deployment can be simplified by allowing coverage overlap of Nodes.

Abstract: A repeater is configured so as to detect feedback oscillation conditions by detecting a gain parameter, and responding to the detected gain parameter by reducing the gain when the loop gain approaches unity. When used in a framed shared channel wireless communication systems, feedback oscillation conditions the loop gain of the repeater may be adjusted so as to permit operation of the repeater outside of the oscillation range. The invention is particularly useful when the repeater is used in a framed shared channel wireless communication system.

Abstract: A method for providing repeater communication in a wireless repeater deployed in a multi-repeater environment includes inserting a message signal into the transmit signal of the repeater. The message signal may be a unique or quasi-unique low power spreading sequence uniquely identifying the repeater from other repeaters in the environment. The message signal may also contain information relating to the operational characteristics of the repeater. The message signal may be detected by another repeater or by an end-user wireless communication device.

Abstract: An indoor base transceiver system (BTS) provides economical coverage by having a network-coupled base station that monitors a plurality of remote transceiver units (RTUs), or RF nodes, communicating by base-band conduits at symbol data rate. The BTS can reduce cost by interconnecting coverage nodes at the bit rate and can reduce cost by interconnecting coverage nodes at the symbol rate. The BTS can implement the modulation/demodulation function in a split fashion, with part of this accomplished in the RF Node and part accomplished in an Aggregator of the base station. System capacity can be retained by using selection combining and by using maximal ratio combining. Multiple carriers can be supported by messaging on the signal link and performing the frequency selection/generation at the remote Node. Deployment can be simplified by allowing coverage overlap of Nodes.

Abstract: Methods and apparatus are described for configuring a CATV system as base station with a distributed antenna supporting a wireless communication system. The CATV system can be configured to implement a frequency translating repeater at each of a plurality of distribution points within the CATV distribution network.

Abstract: A method and system determines mobile station position information based upon base station identification and a repeater discriminant. A position location database includes base station identifications and repeater discriminant combinations, and unique position information associated with each combination. A repeater implements a discriminant to a transmitted signal in either the forward link, reverse link, or both. The position location database is accessed to determine mobile station position information based upon a base station identification and repeater discriminant.

Abstract: Methods and systems are provided to configure a frequency repeater. The frequency repeater is configured with an identity of a service provider and receives a message that defines a set of frequencies to be repeated, the frequencies are associated with a service provider that matches the preconfigured identity. A digital filter receives an incoming signal from the service provider, and filters and repeats the frequencies defined in the received message. The frequency receiver can also determine a set of frequencies to be filtered and repeated based on a cell search procedure performed with a modem that resides in the repeater. A policy established by the service provider can also be utilized to facilitate defining the set of figures to be repeated. By utilizing a signal quality metric and an isolation metric associated, with the performance of a receive and transmit antenna utilized by the repeater, the set of frequencies to be filtered and repeated can be adapted in real time.

Abstract: The caprolactone-grafted phenoxy resin-based polyether urethane acrylate oligomer affords relatively low viscosities in polymerizable acrylate formulations in which it is employed, and leads to cured products that exhibit excellent adhesion and chemical resistance, improved toughness and flexibility, and exceptionally low shrinkage.

Abstract: The meta tetramethylxylenediisocyanate-based polyether urethane acrylate oligomer reduces the viscosities of polymerizable formulations, as compared to other isocyanate-based oligomers, significantly enhances adhesion to certain substrates, and imparts increased elongation-to-break valves to cured products produced therefrom.

Abstract: Disclosed are a system and method for loading diagnostic routines for execution in a computer system. The method comprises the steps of (1) executing a boot loading routine stored in non-volatile memory within the computer system, the boot loading routine providing an environment in lieu of an operating system of the computer system within which to execute diagnostic routines, the boot loading routine including a decompression routine, (2) decompressing a compressed diagnostic routine stored in the non-volatile memory into video random access memory (RAM) and (3) executing the decompressed diagnostic routine under control of the boot loading routine. The present invention, in its preferred embodiment, allows relatively large diagnostic routines to be stored in electrically erasable programmable read only memory ("EEPROM") and decompressed, as required, into video RAM for execution, without requiring the computer's operating system to function.

Abstract: A watchdog timer circuit of the present invention monitors a computer system (S) during diagnostic testing and resets the system when it is nonfunctioning. A real-time clock (RTC) (21), programmed by a central processing unit (CPU) (29) to run for a period of time, produces a reset signal after the period of time elapses. Typically this time period relates to a diagnostic program being run. The reset signal serves as an input to reset circuitry (28) which immediately transmits a nonmaskable interrupt (NMI) to the CPU (29) and, after a delay period, transmits a hardware reset signal to the CPU (29). When functioning properly, the CPU (29) prepares for the hardware reset signal that is produced by the reset circuitry (28) and avoids being reset by the hardware reset signal. However, when the CPU (29) is not functioning properly, the hardware reset signal resets the CPU (29).

Abstract: A memory write disable circuit which disables write operations to main memory during cache diagnostics and thus provides a generic means for testing cache memory systems. Disabling write operations to main memory allows the diagnostics to easily distinguish between cache hits and cache misses during diagnostics. The disable circuit operates by disabling the output enable for the main memory write signal. This disables writes to main memory in a manner external to the memory controller and thus allows tags to be loaded from a cacheable space in main memory. This enables the testing of cache memory systems in computer systems using integrated cache and memory controllers which prevent read hits to memory addresses whose cacheability has been disabled. This also provides a testability function that is hardware independent and thus can be used regardless of the configuration or processor used in the computer system.

Abstract: Disclosed are a system and method for loading diagnostic routines images from disk for execution in a computer system. The method comprises the steps of (1) executing a boot loading routine stored in non-volatile memory within the computer system, the boot loading routine providing an environment in lieu of an operating system of the computer system within which to execute diagnostic routines, the boot loading routine including a disk access routine, (2) retrieving a diagnostic routine stored as an image on a disk into video random access memory ("RAM") with the disk access routine and (3) executing the retrieved diagnostic routine under control of the boot loading routine. The present invention, in its preferred embodiment, allows relatively large diagnostic routines to be stored in the form of images on a disk drive in the computer system and retrieved, as required, into video RAM for execution, without requiring the computer's operating system to function.

Abstract: Disclosed are a circuit and method for remote diagnosis of personal computers. The method comprises the steps of (1) confirming an existence and a proper operation of a modem coupled to the personal computer, the step of confirming performed in a central processing unit ("CPU") of the personal computer and in a diagnostic environment independent of a normal operating system of the personal computer, (2) receiving an indication of a selection of diagnostic routines to be performed from a remote location via the modem and (3) performing selected ones of the diagnostic routines as a function of the selection. The present invention allows an experienced technician located remotely from the computer to interact as though seated in front of it, to thereby allow remote diagnosis of even critical faults that prevent the computer from booting.