Abstract: Techniques for efficient signaling to and from a plurality of mobile stations are disclosed. In one embodiment, a subset of mobile stations may be allocated a portion of the shared resource with one or more individual access grants, another subset may be allocated a portion of the shared resource with a single common grant, and yet another subset may be allowed to use a portion of the shared resource without any grant. In another embodiment, an acknowledge and continue command is used to extend all or a subset of the previous grants without the need for additional requests and grants, and their associated overhead. In one embodiment, a traffic to pilot ratio (T/P) is used to allocate a portion of the shared resource, allowing a mobile station flexibility in selecting its transmission format based on T/P.

Abstract: A receiving device in a trunked radio communications system retrieves a first frequency from a scan list and tunes to about the first frequency. If no control channel messages are decoded at the first frequency, then the receiving device tunes to about a second frequency. If no control channel messages are decoded at the second frequency, then the receiving device iterates through the scan list, until the last frequency in the scan list is reached, wherein the scan list comprises control channels for at least two band plans.

Abstract: A signaling bearer quality of service profile is pre-established and configured in various nodes in an access network. This is a new quality of service class designed to meet the needs of signaling bearers in multimedia sessions. A message requesting a bearer to support a communication between a mobile terminal and an access point to a packet data network is generated. That message includes a signaling quality of service indicator, which when detected, causes a bearer to be established between the mobile terminal and the access point in accordance with the pre-established signaling quality of service profile. The pre-established signaling quality of service profile typically includes low delay and low bit error rates in addition to high priority and accommodation of bursty traffic patterns. A signaling usage indicator may also employed to implement a standard set of minimum signaling bearer capabilities.

Abstract: Apparatus, and an associated method, for facilitating communications in a radio communication system that utilizes shared, packet channels. One or more common control channels are defined upon a forward link extending between a network part of the radio communication system and the mobile stations thereof. Assignment information sets so generated by an assignment information generator and formatted into data frames for communication to the mobile stations. The mobile stations monitor a single shared packet control channel to receive the assignment information sent thereto upon the common shared channel.

Abstract: A packet data serving node (106) initiates a packet data session update procedure with the RAN by passing a session update message containing packet data session parameters associated with at least one packet data service to a packet control function (111) which may be part of a radio access network (110). The session parameter may include a packet data service inactivity timer, QoS parameters, user information or any other session related parameters. Packet control function (111) examines the PSDN code and inhibits tearing down the link (A10/A11) between PCF (111) and PDSN (106). Further, if a handoff occurs, the BS passes the packet data session parameters associated with each of the service instances to the MSC that in turn passes them on the target BS of the handoff.

Abstract: A radio communication system has a communication channel with many paths between two terminals having many antennas. One of the terminals has a receiver and a transmitter, where the receiver is configured to determine the directions from which the strongest signals arrive from the other terminal, corresponding to particular paths. The transmitter separates a signal for transmission into sub-streams and transmits each sub-stream in the respective directions determined by the receiver.

Abstract: A method for processing a call in an asynchronous mobile communication system including an asynchronous mobile station, an asynchronous radio network, wherein a synchronous core network is interlocked, includes the steps of: setting up the call in case a calling call message is generated in the mobile station; establishing a channel between the asynchronous mobile station and the asynchronous radio network; handling basic information for assigning a radio resource; performing a cipher establishment; establishing the radio resource; performing a configuration for a service; and transmitting a phone call stand-by message to a user.

Abstract: A system and method for communicating between nodes in a communications network. The network includes nodes that broadcast and receive data packets over a radio channel. The system includes a distributed trunking method that distributes the communications between the nodes over multiple channels. Voice and other data may be broadcast over data channels, while information regarding the availability of the data channels is broadcast over a control channel. Access to the control channel is controlled using a protocol that may include carrier sense multiple access with collision avoidance (CSMA/CA), time division multiple access (TDMA) or a hybrid of CSMA/TDMA.

Abstract: An iterative process for TDMA radiomobile communications where several reference sequences are distributed in each allocated timeslot. On reception, a multipath channel mesh representation and an iterative process are used.

Abstract: An apparatus for monitoring asynchronous transfer mode cells in the communication system is proper for recognizing state information of asynchronous transfer mode cells transceiving between a base transceiver station and a base station controller. Accordingly, the apparatus enables to monitor the contents of the cell by comparing VPI/VCI of the ATM cells inputted to the multiplexing/demultiplexing part to the other VPI/VCI latched hardware, have the cell bus RX I/F count the number of the error-occurring ATM cells by carrying out header error checks of the ATM cells inputted to the cell bus RX I/F itself, and find out how long the cell transferring time takes for transceiving loop is found out by transceiving the test ATM cells between the multiplexing/demultiplexing part being the ATM low rate subscriber multiplexing/demultiplexing board assembly (ALMA) and the base transceiver station.

Abstract: A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.

Abstract: There is disclosed a system and method for sending intermittent messages on the A3 interface to provide, for use in a base station, a message transfer system for transmitting and receiving intermittent messages. The transfer system comprises i) a controller for inserting an intermittent message into a data frame; ii) a selection distribution unit in the base station for receiving and processing the intermittent messages; and iii) a transmitter for sending data frames with the intermittent message inserted to other base stations via the A3 interface.

Abstract: A telecommunications system and method are disclosed for mapping a Transcoder/Rate Adaptor (TRAU) protocol onto a User Datagram Protocol (UDP) for use in an Internet Protocol (IP) based Base Station System (BSS) architecture. All in-band control bits in the TRAU protocol are not relevant when using the UDP protocol. Therefore, when speech information is mapped onto a UDP datagram for transfer to a Channel Codec Unit(CCU) in a Base Transceiver Station (BTS), some of the information normally transferred between a CCU and the TRAU can be removed. For example, a Time Alignment command included in some of frame types is not needed, and should be removed. In addition, bits relating to a frame structure, such as TRAU synchronization bits, tail bits and spare control bits, should be removed from all frame types. Furthermore, a new control bit that contains a sequence number must be added to handle reordering of a packet data stream.

Abstract: A radio terminal or gateway capable of executing the AV/C protocol on the datalink protocol which starts communications after setting up a logical channel on a radio network is disclosed. The radio terminal or gateway transfers data packets according to the stored correspondence information among the protocol identifier, the channel identifier that is set up for the radio terminal or gateway, and the channel identifier that is set up for a correspondent radio terminal or gateway, where the correspondence information is obtained through an exchange of signaling packets containing the channel identifier indicating a logical channel that is set up for transferring the data packets and the protocol identifier indicating the AV control protocol.

Abstract: The present invention relates to a mobile communication system supporting communication of data which comprises a base station communicating with a switching arrangement. A communication protocol is used for communication between a mobile station and the switching arrangement. The connection between the base station and the switching arrangement supports packet switched communication and detecting means are provided in the base station to detect if data frames sent from the mobile station are correctly received over the air interface. Means are also provided for sending only data frames detected as correctly received onto the switching arrangement using the packet switched connection between the base station and the switching arrangement.

Abstract: A method and system are provided for trunking multiple links between a switch and a server. Server drivers recognize and automatically configure additional installed network interface cards (NICs) or multi-port NICs as group members. A monolithic driver, or an overlaying driver shim makes the group of NICs appear to be a single NIC to the server operating system and clients. Multiple NICs having the same MAC address and appearing on different ports are connected directly to a switch which treats the group as a single logical port. Using a deterministic algorithm, the switch looks up a received packet's destination in the address table. A list of possible ports for reaching the server and a flag indicating that the server is to be reached via this trunked group of ports are retrieved. The switch selects a port based upon the packet's source address. On the trunk to the clients, the server driver performs the same deterministic algorithm on the destination addresses.

Abstract: Disclosed herein is a method of receiving a spread-spectrum signal in a radio communication terminal device having a plurality of demodulators for demodulating a received spread-spectrum signal, comprising the steps of detecting when at least one of a plurality of demodulators is temporarily unable to properly demodulate the received spread-spectrum signal, determining whether or not there is a demodulator which is not being used other than the at least one of the demodulators, and continuing a demodulating process of the at least one of the demodulators, if there is a demodulator which is not being used. Thus, according to the present invention, the time in which the demodulator is unlocked is minimized, and a stable, high-quality signal can be received.

Abstract: Techniques for congestion control are disclosed. In one embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In one embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects are also presented.

Abstract: In a cellular system information is transmitted from a base station (100, 400) to a terminal (101, 500). Between the base station and the terminal there is defined a paging channel (110) in order to transmit requests for establishing downlink connections, and a broadcast control channel (108, 109) in order to transmit general information concerning the base station's cell. General information concerning the base station's cell is transmitted on the paging channel (110) when the paging channel's (110) information transmission capacity is higher than the total amount of information which has to be transmitted regarding the requests to establish downlink connections.

Abstract: A communication controller (111) for handling and processing data packets received from a large number of communication channels (181-188). The communication controller (111) comprising of: a processor (160) for processing data; a serial interface (28), coupled to the communication channels (181-188). A multi channel controller (100, 100′) coupled to the serial interface (28) and the processor (160), for interfacing between the communication channels (181-188) and the processor (160). The communication channels (181-188) and the serial interface (28) send and receive data packets. The processor (160) sends, receives and processes data words. The multi channel controller (100) receives data packets from the serial interface (28), concatenates data packets and sends data words to the processor (160). The multi channel controller (100) receives data words from the processor (160), and transmits data packets to the serial interface (28).

Abstract: A method and apparatus are disclosed that support multiple mobile address types using object-oriented programming techniques. A mobile address object class supports the creation of mobile address objects. The mobile address object class includes the test-and-branch code that supports each mobile address type. A CPA Mobile Address class allows mobile address information to be stored in CPAMA objects in a uniform manner. The CPA Mobile Address class provides the address retrieval functionality to map the stored mobile address information to a suitable format. The CPAMA class provides a set of constructors to create and initialize its data members using an appropriate format, such as an access channel format or an ANSI International Mobile Station Identifier format, and a set of destructors to de-initialize objects before they are destroyed. The address information can be extracted from a CPAMA object using a set of member functions.

Abstract: A radio system and a method of establishing a connection between network elements in a radio system comprising as network elements one or more base stations, a base station controller and a network management system that are operatively interconnected by means of telecommunication connections. Information between the network elements is transmitted in frames that are divided into time slots. The base station controller controls one or more base stations. Network element identification information has been fed into a network element to be installed, and the network element is physically connected to the system by means of the telecommunication connections.

Abstract: A method of maintaining a group call in a mobile communication system comprising a network infrastructure and mobile stations, the method comprising the steps of: establishing a group call in which a first mobile station is prioritized and the mobile stations participating in said group call communicate in speech items, the frame structure comprising time slots that a second mobile station sending a speech item employs in its speech item. In the method, the first mobile station is allocated time slots or time periods in which only the first mobile station can transmit signalling messages to the network infrastructure; the first mobile station and the third mobile stations are transmitted data indicating in which time slots of time periods only the first mobile station can send signalling messages to the network infrastructure; and the third mobile stations refrain from sending their signalling messages in the time slots or time periods allocated to the first mobile station.

Abstract: An asynchronous transfer mode network includes a high-level station and a mobile station in a boundary zone between service cells of wireless base stations connected to the high-level station through asynchronous transfer mode channels, wherein the high level station transmits a control message through the asynchronous transfer mode channels and the wireless base stations to the mobile station and receives response messages from the mobile station through the wireless base stations and the asynchronous transfer mode channels, and determines a difference between transmission time lags along the asynchronous transfer mode channels so as to make built-in clocks provided for the wireless base stations synchronous with one another.

Abstract: A system for allocation of radio resources to a mobile station, in a multiservice mobile radio cellular system, performs radio resource allocation for the various services independently. The radio resources are formed by transmission channels having multiple access provisions, using combinations of multiplexing techniques including frequency multiplexing. The system includes a coordination device for coordinating the allocation of radio resources for the various services accessed simultaneously by a mobile station, in order to allocate different channels carried by a single carrier frequency to the various services for the mobile station.

Abstract: A method and apparatus for connecting daisy chained BTSs (Base Transceiver Stations) by utilizing a multiplexer and a demultiplexer is disclosed. The BSC (Base Station Controller) generates packets to be passed to the daisy chained BTS and multiplexes the packets to transmit them to the BTS. The BTS receives the multiplexed packets and demultiplexes the packets, and as a result of the demultiplexing, if the packets are for the respective BTS, then the respective BTS receives them and transmits the remaining packets to the next BTSs. Additionally, the daisy chained BTS being connected to other BTS generates packets to be passed to a BTS and decodes the transmitted packets. As a result of the decoding, if the packets are for the respective BTS, the respective demultiplexer passes the packets to the corresponding BTS; otherwise, it passes the packets to the BSC.

Abstract: In a mobile communication system comprising a mobile station (20), a plurality of base stations (30-1 to 30-4), and an exchange station (40) connected to the base stations, a particular base station (30-1) informs, on reception of an outgoing call for the mobile station (20), the mobile station (20) of a node number for identifying the exchange station (40) and a processor number for identifying a call processing processor in the exchange station to make the mobile station (20) hold the node number and the processor number as a held node number and a held processor number. When the mobile station (20) carries out handover, the mobile station (20) sends the held node number and the held processor number to a new base station (30-2) destined for the handover. The exchange station (40) selects a call processing processor in accordance with load distribution order to make the call processing processor inherit a call processing.

Abstract: A system and method by which bearer channels within high-speed communication channels can be directly accessed without completely breaking down the high-speed data communication channel. The present invention provides a flexible approach in which individual bearer channels can be accessed and in which data within an accessed bearer channel can easily be changed.

Abstract: A network system comprising terminals and relaying nodes having a reservation message processing unit for transferring a packet wherein a packet receiving terminal 3 requests a reservation of network resources. The packet receiving terminal 3 transmits to a packet transmitting terminal 1 a request message in which a reservation request condition is stored in order to request a resource reservation, the packet transmitting terminal 1 having received the request message transmits to the relaying node 2 on the same route as the packet an acknowledgement message in which the reservation request condition is stored. Each relaying node 2 provides a resource reservation for the home relaying node according to the reservation request condition in the acknowledgement message and transfers the acknowledgement message to the same route as the packet.

Abstract: A wireless communication device, a wireless communication system using the same, and a communication method therefor are provided. When a wireless communication device operated as a slave intends to communicate with other slave communication devices, the communication-intending slave device transmits a packet where an address of a destination slave device is recorded in a header region as a destination address to the wireless communication device operated as a master. When the address recorded in the header region of the packet is an address of another slave device, not the communication-intending slave device, the master device transmits the packet to the wireless communication device of the destination address. Accordingly, the communication is performed using the address recorded in the header region of the transmitted packet as the destination address. As a result, peer-to-peer communication between the slave devices is performed, without increasing a data processing load in the Bluetooth communication.

Abstract: A wireless data network which provides communications with a Pier to Pier Protocol server is disclosed. The network includes a home network that includes a home mobile switching center, a wireless modem and one or more end system. The wireless modem and the end systems are connected together via an ethernet link. The network also includes a PPP server, wherein PPP information sent from PPP server for the end systems is encapsulated by the wireless modem in an ethernet frame and sent to the end systems via the ethernet link.

Abstract: A packet-based communication system and method of call control that allows variable numbers of calls of potentially multiple types (e.g., conventional and trunking calls) to proceed concurrently over shared links of an IP network without exceeding available bandwidth. Call counts are determined for one or more paths between endpoints, defining numbers of calls that are supportable by the one or more paths. The call counts may be apportioned between first and second types of call (e.g., between trunking and conventional calls). Upon receiving call requests that require use of one or more paths, the call requests are granted if they do not exceed the call counts associated with the one or more paths. Optionally, the call requests may be denied or busied if they exceed the call counts associated with the one or more paths. As another option, call requests of one type (e.g.

Abstract: The invention provides systems, including a methods and apparatus, for providing seamless telephone service across MSC's that support multiple or different protocols. In accordance with a preferred embodiment of the invention, the home mobile switching center, where the subscriber record is stored, is equipped to respond to a first inquiry signal from an originating mobile switching center by identifying itself to the originating mobile switching center. The incoming call may then be trunked to the home mobile switching center and forwarded to the visited mobile switching center according to the second protocol. According to another preferred embodiment, in response to the first inquiry signal, the home mobile switching center sends a second inquiry signal to the visited mobile switching center. The first inquiry signal represents a request for an identification number identifying, in the first protocol, the visited mobile switching center.

Abstract: Link-State Advertisement (LSA) and other routing control packets are transmitted within a wireless communication system or network via selective enablement of control links for transference of the packets between network nodes. Specifically, an exemplary wireless network includes a plurality of nodes arranged into clusters with each cluster having cluster member nodes and a designated cluster head node. The nodes communicate with each other via an intranet protocol, while the network may communicate with other external networks in accordance with an internetworking protocol. A database within each network head node contains link information for that node. The LSA packets contain information to update the head node databases, while other routing control packets generally contain various routing information for network nodes to facilitate message transmissions. The routing control packets are transmitted to each head node to control routing functions and enable each database to maintain current information.

Abstract: A system and a method for address assignments for wireless satellite telephone systems comprises one or more desksets (telephones) and a radio antenna unit (RAU). The desksets are connected to the RAU using an interface bus. In operation, a deskset initiates an address arbitration cycle by transmitting a request for an address to the RAU. The RAU acknowledges after it receives the request, and queries other desksets if the requested address is being used by other desksets. If no other deskset responds within a predetermined time period, the RAU grants the requesting deskset the address. If the requested address is being used, the deskset using the address informs the RAU, and the RAU rejects the request. The requesting deskset then requests a different address. If all available addresses are being used, the requesting deskset informs the user and shuts down. If two or more desksets transmit requests concurrently, there will be a collision. To resolve a collision, the desksets are divided into two sets.

Abstract: The present invention relates to a data transmission method between a base station controller (BSC) and a base transceiver station (BTS) in a digital mobile communication system, for varying a length of a frame according to a data transmission rate, thus improving transmission efficiency of a trunk between the BSC and BTS. When transmitting voice and data from the BSC to the BTS, a selection unit in the BSC generates a length-varied frame according to a transmission rate of a packet to be transmitted to the BTS and transmits the variable length frame to the BTS. Alternatively, when transmitting voice and data from the BTS to the BSC, a base station common processor in the BTS generates a length-varied frame according to a transmission rate of a packet to be transmitted to the BSC and transmits the variable length frame to the BSC. Therefore, the present invention can effectively use a channel bandwidth between the BTS and the BSC, thereby improving trunk efficiency.

Abstract: A unified in-building communication method in a communication system connected to a public land mobile network (PLMN), a public switched telephone network/integrated services digital network (PSTN/ISDN), and an Internet protocol (IP) network is disclosed. The method comprises setting a common cell area such that a wireless public or wireless in-company communication service is available in a prescribed local area; and connecting a mobile switching center (MSC) to the PLMN, using a registered mobile terminal as an extension telephone in the common cell area, and bypassing an unregistered mobile terminal, so that the PLMN can share a base station. The registered mobile terminal communicates with a wire extension terminal or a wireless extension terminal, and the registered mobile terminal wirelessly receives a data service through the IP network. The wireless in-building communication service of the present invention is performed in a single cell so that a handoff does not occur.

Abstract: A porting control routing (PCR) node (302) is adapted to efficiently route signaling messages associated with a mobile subscriber that has been either ported in to or out of a service provider's wireless communication network. The PCR node (302) includes both range- and exception based routing rule databases (348 and 346). These databases increase flexibility in allocating mobile identification numbers among multiple mobile service nodes. Furthermore, the association of a ported status indicator and related routing information with entries in the exception based database allows the PCR node (302) to more efficiently manage a service provider's mobile service resources.

Abstract: A method of numbering data packets in a packet-switched telecommunications system which utilizes acknowledged transmission and the telecommunications protocol of which comprises a convergence protocol layer for converting user data packets into convergence protocol packets, and a link layer for transmitting convergence protocol packets as data units and for acknowledging the transmission. A data packet number is defined for the convergence protocol packets to be sent by a counter and the convergence protocol packets to be sent are transmitted to the link layer for transmission without the data packet number. A data packet number is also defined for received convergence protocol packets by means of the counter and an acknowledgement of received convergence protocol packets is transmitted to the transmitter.

Abstract: An apparatus and system for decoding colliding data transmissions utilizing an at will transmission protocol is disclosed. An apparatus for decoding an analog signal includes an input terminal, a data bus, a first decoder connected to the input terminal and data bus, configured to receive an analog signal, decode the signal into a first message and output the message to the data bus, a second decoder connected to the input terminal and data bus and configured to receive an analog signal, determine whether the analog signal includes a second message, decode the signal into a second message and out put the message to the data bus. A microprocessor operatively connected to the first and second decoders directs the second decoder to search for a colliding second transmission immediately after the first decoder has begun to decode a first transmission. If colliding second signal captures the receiver as the first transmission is decoded, the second decoder decodes and outputs the second message intact.

Abstract: A high impedance tap for monitoring traffic over a communication link of a fast Ethernet local area network (LAN). The circuit of the present invention is advantageously used for tapping into a fast Ethernet communication link (e.g., bi-directional communication channel) of a LAN using, for instance, {fraction (10/100)} BaseT Ethernet communication protocol. The novel circuit is particularly useful in point to point communication links (e.g., supporting fast Ethernet communication) where two communication nodes are coupled together using a bi-directional communication link (e.g., two twisted pair cables). Unlike the prior art monitoring probes, the probe of the present invention does not insert itself in series between the communication link, but rather taps onto the communication link in parallel using a high impedance termination circuit thereby leaving the existing communication link undisturbed electrically.

Abstract: Frames received by base stations (base stations) (103-107) are assigned a frame-quality indicator (FQI) by the base station. FQI information for all frames received is continuously backhauled to a switch (101). The switch (101) sidehauls the FQI information to a call anchoring base station, where a determination of a base station with the best FQI for each frame takes place. Once the anchoring base station determines a base station with the best FQI for a particular frame, the anchoring base station sends a FORWARD_FRAME message to the base station with the best FQI, or, if the anchoring base station is the base station with the best FQI, nothing is sent to the other base stations. Once the FORWARD_FRAME message is received by a base station, the base station immediately forwards the frame (identified by the frame number) to the switch (101). The switch (101) then routes the selected frame accordingly.

Abstract: In order to transmit data packets for a packet data service in a cellular mobile radio network, in each case one channel (TCH) in the radio transmission system (BSS) of the mobile radio network is reserved and linked to a transmission channel (NUC), which leads to a separate service network node (GSN), to form a continuous data channel. Data packets and signalling information are transmitted jointly via the data channel in a single data protocol between the mobile subscriber station (MS) and the service network node (GSN). In this way, signalling information and data packets are transmitted in only one protocol, to be precise the data protocol. By using only the data protocol for the joint transmission of the data packets and signalling information, there is a reduction in the signalling load and the channel seizure duration in the mobile radio network in comparison with the solution with two separate protocols for signalling and data.

Abstract: A CDMA mobile telecommunications system comprises a base station (20) having a radio channel connection to a mobile station (22). The base station (20) determines a signal to interference/noise ratio (SINR) with respect to the signal received from the mobile station (22), compares the signal to interference/noise ratio (SNR) for the mobile station (22) with a target signal to interference/noise ratio (TSINR), and transmits a power level command to the mobile station (22) in accordance with the comparison. A mobile switching center (24) generates information for updating the target signal to interference/noise ratio (TSINR)and transmits the information for updating the target signal to interference/noise ratio (TSINR) to the base station (20) using in-band signaling.

Abstract: For setting up a traffic channel connection between an originating mobile station and a destination mobile station of a mobile radiotelephone network, the network having at least two base stations, a base station control unit that controls these, and a mobile switching center connected with this control unit via a transcoding and rate adaption unit, a connection request is signaled from an originating mobile station requesting connection to a destination mobile station via the mobile switching center. Using a database, the mobile switching center determines via which base station the desired destination mobile station can be reached. The transcoding and rate adaption unit contains a switching stage for the traffic channel connection setup, which switches a traffic channel connection between the originating mobile station and the destination mobile station.

Abstract: Wireless communication paths between a PC and a Personal Digital Assistant (PDA) are utilized to synchronize data files between the PC and the PDA. Example wireless communication paths include ) a one-way paging network, a two-way paging network, a Cellular Digital Packet Data (CDPD) network, and a cordless telephone network. Automated updating of remote files is accomplished by invisibly updating using a paging or CDPD network, e.g., either after each change to the data file, after a series of changes to the data file, after exiting the scheduling application program, at predetermined intervals and/or even on-demand. A simple and efficient wireless way to synchronize data files on separate computers which do not require a fixed, direct connection to each other, such as a direct connection through the PSTN, infrared link, or wired or wireless LAN type connection. The synchronization of data files can be updated on a frequent, inconspicuous and convenient basis.

Abstract: A processor (208) selects a candidate message (214) from a message queue (212), and tests (306) whether an available space (216) in the current frame of data is sufficient to accommodate the candidate message. The processor records (320, 420) a skip indicator (218, 220) into a predetermined memory location, in response to the candidate message being a numbered message and the available space in the current frame being insufficient. The processor skips (316) the candidate message during the current frame even though available space is sufficient, when the skip indicator is recorded in the predetermined memory location and is applicable to the candidate message. The processor adds (332) the candidate message to the current frame of data, when the available space in the current frame is sufficient and the candidate message is a message not affected by the skip indicator. The processor continues (330) to select, test, record, skip, and add, as above, to form the current frame of data.

Abstract: An arrangement wherein peripheral modules of a decentralized peripheral system connected to an automation unit can be identified. To do so, the peripheral modules of the decentralized peripheral system are equipped with a device that converts a polling signal sent to it into an identification signal during an identification mode. The arrangement can be used in decentralized peripheral systems of programmable control systems.

Abstract: The present invention time and frequency synchronizes a plurality of private radio base stations operating in the coverage area of a land mobile communications network. The mobile network's control channels are used to derive a reference signal. A mobile terminal uses the reference signal to become synchronized both in time and frequency with the mobile network. Any of the private radio base stations that is linked in a traffic connection with the mobile terminal is synchronized with the mobile terminal. Consequently, the private radio base stations are indirectly synchronized with each other and also with the mobile communications network.

Abstract: A data sampling circuit samples radio signal data made up of plural successive sets of data, each set of data having a given number of data bits. A first shift register holds and shifts the data bits of the radio signal data to successively obtain sampled radio signal data for each set of data of the radio signal data. A data holding section successively receives and holds each set of the sampled radio signal data held by the first shift register. Also, a processor successively receives, bit by bit, each set of sampled radio signal data held by the data holding section, and processes each set of sampled radio signal data in accordance with a given processing procedure. The data holding section completes reception of each set of sampled radio signal data from the first shift register before the first shift register holds a first data bit of each next set of data of the radio signal data.