Abstract:
A method is offered of achieving a desired C/I ratio within a cellular system, at reduced transmitter power levels, by measuring a signal loss on a downlink between a base site transmitter (31) and mobile receiver (20) and calculating an uplink signal magnitude at a base site receiver. A communication channel is then selected from a number of communication channels based upon comparison of the uplink signal magnitude with pre-measured interference levels of each channel of the number of channels to produce a desired C/I ratio.
Abstract:
Handoff from a Code-Division, Multiple Access (CDMA) protocol to an Advanced Mobile Phone Service (AMPS) protocol occurs by comparing a remote unit's (405) phase shift measurement to a threshold (503) and determining a reference CDMA base station (401) from an active set of CDMA base stations (515). Next, corrected phase shifts are calculated for each CDMA base station in the active set (521) and the remote unit (405) is handed off to an AMPS base station (109) underlying the CDMA coverage area (126) having the smallest corrected phase shift (525).
Abstract:
From a mobile station (125) a signal is sent that is compatible with a first communication system and at the same time a further signal is sent compatible with another communication system. The further signal is received and processed by a base station (136). Components in the mobile station are provided for sending a narrow band signal (AMPS) during communication with a spread spectrum communication system. The latter has code-division multiple access (CDMA). Components are available for processing the narrow band signal for the purpose of communication transfer in the mobile station (125) from the spread spectrum communication system to a narrow band communication system. Other mobile stations which send a spread spectrum signal refrain from transmission while the mobile station (125) is sending a narrow band signal (AMPS).
Abstract:
A method of selecting handover targets for a communication unit exchanging a communicated signal through a serving base site in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit to the serving base site. The method comprising the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the non-adjacent base sites may be determined from the directionality of the communication unit. The method further includes the step of selecting a handover target providing a highest relative RSSI value to the communication unit from the modified base site frequency list.
Abstract:
From a mobile station (125) a signal is sent that is compatible with a first communication system and at the same time a further signal is sent compatible with another communication system. The further signal is received and processed by a base station (136). Components in the mobile station are provided for sending a narrow band signal (AMPS) during communication with a spread spectrum communication system. The latter has code-division multiple access (CDMA). Components are available for processing the narrow band signal for the purpose of communication transfer in the mobile station (125) from the spread spectrum communication system to a narrow band communication system. Other mobile stations which send a spread spectrum signal refrain from transmission while the mobile station (125) is sending a narrow band signal (AMPS).
Abstract:
The disparate data and commands from are received from a managed resource (102) and have potentially different semantics. The disparate data and commands are processed according to rules received from an autonomic manager (112) to produce a single normalized view of this information. The actual state of the managed resource is determined from the normalized view of disparate data. The actual state of the managed resource (102) is compared to a desired state of the managed resource (102). When a match does not exist between the actual state and the desired state, a configuration adjustment to the managed resource (102) and/or another resource is determined to allow the actual state to be the same as the desired state. Then, the configuration adjustment is applied to the managed resource (102). When a match exists between the actual state and the desired state, maintenance functions associated with the managed resource (102) are performed.
Abstract:
A system includes vendor specific converters [210, 215, 220, 225] to gather vendor-specific data from sensors [235, 240] and convert to normalized data. The vendor-specific data comprises at least a first input and a second input. The first input corresponds to a first language and the second input corresponds to a second language, where the first language is different from the second language. The vendor specific converters [210, 215, 220, 225] receive normalized commands and issue vendor-specific commands to a managed resource [165]. A converter module [230] receives the normalized data and converts to an output corresponding to a common language. The converter module [230] also receives and outputs normalized commands corresponding to the common language. Semantic processing logic [255] receives the normalized data and matches the normalized data against a predetermined set of knowledge bases and generates a new object to send to an autonomic manager [160].
Abstract:
A base station (106) is provided that has a transceiver (202) that transmits and receives data. The transceiver is coupled to a controller (204). To configure the base station, the transceiver sends an identifier (210) that is associated with the base station together with information regarding the installation of the base station in the communication to the network to access parameters (306) from a database (304) for the base station. The parameters can be based on data known from the purchase of the base station, the location of the base station within the communication network and planning data for the communication network.
Abstract:
Power control in a spread-spectrum communication system takes place by determining origination power of a traffic channel based on a number of acti ve demodulators and pilot channel signal quality (610). Once origination transm it power is determined and call origination takes place, the transmit power is reduced at a first rate when a time is less than a time for all active demodulators to be established (615), otherwise the transmit power is reduce d at a second rate (621). After all active demodulators have been acquired pow er control takes place by receiving a Power Measurement Report Message (PMRM) o r a Pilot Strength Measurement Message (PSMM), determining a signal quality metric existing at the remote unit based on the PMRM or PSMM, and adjusting transmit power based on the signal quality metric (645).