Abstract:
A smart card (100) is equipped with an internal time-of-day clock and calendar (106). Between the smart card (100) and a subscriber unit (209, 300), into which it is inserted, there is a communication of the subscriber's identity and a negotiated agreement for how long the subscriber unit (209, 300) is to maintain the transferred identity. For that duration of time, the subscriber unit (209, 300) is enabled with the subscriber's identity, and the smart card is essentially "dumb", and therefore unusable until that duration has elapsed.
Abstract:
A code division multiple access (CDMA) communication system reduces system self-interference and enhances system capacity by making rate selection decisions for individual speech encoders in concert with other speech encoders. The system utilizes perceptually weighted error metrics (401) as input into a rate controller (404) which determines and provides selected rates (402) back to the encoders (105). The system provides optimum voice quality and system capacity in that it allows specific encoders to decrease their rate, which improves capacity, as necessary while allowing other encoders to maintain their rates. This prevents needless degradation in voice quality at those times when system capacity needs to be temporarily increased.
Abstract:
A communication unit (200) for use in a communication system is provided which includes a hopping mechanism (114, 144) which hops communication frames over a plurality of carrier frequencies according to a predetermined hopping pattern. At least one of the communication frames preferably includes a synchronization channel time slot having data bits from which the predetermined hopping pattern may be derived. In addition, a communication unit (100) is provided which includes a signal acquisition mechanism (142) for initially acquiring a predetermined hopping pattern that specifies the sequence over which hop frames are hopped over a plurality of carrier frequencies. Also, this communication unit (100) includes a hopping mechanism (134, 144) for hopping receiving frequency according to the predetermined hopping pattern such that a control channel may be detected. In an alternative embodiment, either communication unit may derive the predetermined hopping pattern from detected global position satellite information (149).
Abstract:
A base-site (304) combines baseband frequency hopping and fast-synthesizer hopping to produce an economical frequency hopping communication system (300). The base-site (304) combines the fast-synthesizer frequency hopping capability of transmitters (307-309) with baseband frequency hopping to produce a frequency hopping communication system (300) which serves the same number of subscribers served by transmitters (208-213) in a purely baseband hopping communication system (200), but with fewer transmitters (307-309). The implementation of frequency-selective cavities (312-317) having very low loss eliminates the need for wideband hybrid combiners (112-114), which in turn eliminates transmitted-signal power loss experienced in a purely fast-synthesizer frequency hopping communication system (100).
Abstract:
In a TDMA cellular network, there is provided a mechanism for shared-carrier frequency-hopping. It comprises: allocating on a frame basis within a reuse diameter to one coverage area (A-I) during certain timeslot(s) at least one from a pool of TDM frame-hopped carriers and allocating on a frame basis within that carrier reuse diameter to another coverage area (A-I) during certain other, substantially non-overlapping timeslot(s) that frame-hopped carrier, all in substantially non-interfering time-synchronism with any proximal reuse of that carrier, whereby the advantages of frequency hopping are obtained. Stated differently, it comprises: at one instant in time, allocating within a reuse diameter to one coverage area (A-I) at least one of a plurality of hopped carriers and at that same instant in time, allocating within that carrier reuse diameter to another coverage area (A-I) another of that plurality of hopped carriers, all in time-synchronism with any proximal reuse of that carrier. The control and access carriers may also be included in the hopping pool, causing certain timeslots to be hopped on a sequence different from the others. The pool of hopped carriers is further apportioned among co-located sites into hopping groups, thereby reducing intra-system synchronization requirements. To solve the near/far problem, TDM timeslots bordering hopping boundaries are preferentially allocated to less distant mobile users.
Abstract:
Disclosed are methods and devices for remote determination, control and/or inhibiting the use of a speakerphone of a far end communication device. The methods and devices provide the ability to determine speakerphone use and provide remote control of a far end device's speakerphone, including prompting whether to disable the speakerphone of the far end device if determined to be active. Additionally disclosed are methods and devices of a first communication device having a speakerphone including engaging in a communication with a second communication device, determining if the speakerphone of the first communication device is active, and broadcasting that the speakerphone of the first communication device is active. Also disclosed are methods and devices a first communication device including determining an identity of an auditor at a second communication device and indicating at the first communication device the identity of an auditor at the second communication device.
Abstract:
A method in an electronic device for transferring information to another electronic device is disclosed. Data that is selected (202) to be transferred from a first device (102) to a second device (108) is associated (204) with a uniquely identifiable set of information 106. The uniquely identifiable set of information is transferred (206) to a content provider (110). The uniquely identifiable set of information is also transferred (208) to the second device. The second device transmits the uniquely identifiable set of information to a data source. The data source matches the data to the uniquely identifiable set of information and then transfers the data to the second device.
Abstract:
A method (300, 400), system (245) for and corresponding communications unit 200 provide assistance for and control of the unit. The system in one embodiment, preferably comprises: a processor (223) and a memory (225); where the processor interprets a control message, available from a local application or remote agent (119), that corresponds to one or more control commands, such as keypad activations to provide keypad data and executes software instructions stored in the memory to control the communication unit according to the keypad data. The control message can represent voiced instructions that have been converted to control commands in order to provide assistance to a user of the unit or device.
Abstract:
A method and apparatus provides for obtaining content for a wireless device in a more efficient manner by associating a code (i.e., other than a URL) (118) with at least both a desired content server (210a), such as an Internet server, and with control description data (420) that defines at least when to start recording the desired content from the desired server. This may include, for example, record description data such as a start record time (408) and other information. A code server (104) that is accessible via, for example, the Internet by a plurality of wireless devices, stores the code (118) with the associated control description data (420) on a per user basis. The code server (104) provides the stored control description data (420) to a wireless device (202) to facilitate time-based retrieval of the desired content in response to the record start time data (408) included in the control description data (420) provided by the code server (104).
Abstract:
A method and apparatus for authentication of a client device (256) utilizing remote multiple access to a server device (200) that includes a first authentication application unit (420), positioned within the client device, and a second authentication application unit (408) positioned in the server device. The first authentication application unittransmits a first synchronization command (500) to the server device over the packet data network (424), and the second authentication application unit generates a user unit code and transmits (502) the generated user unit code to the client device over the packet data network in response to the first synchronization command. The first authentication application unit and the second authentication application unit store the generated user unit code, and the server device transmits a message (508) that includes a control command and the user unit code stored in the second authentication application unit to the client device over the packet data network. The first authentication application unit compares the user unit code received in the message with the user unit code stored in the client device and executes (510) the control command in response to the user unit code stored in the client device being the same as the user unit code received in the message.