Abstract: A high accuracy clock synchronization mechanism between a sender and a receiver in a communication network achieves time synchronization using broadcast beacons, directly at the PHY/MAC layer of the sender and the receiver, to minimize synchronization delay jitter. This provides a more efficient synchronization method than either NTP or SNTP, because multiple handshaking information exchange is avoided. Further, using beacons avoids the overhead of introducing additional synchronization packets in higher layer synchronization.

Abstract: Systems and methods of combining OFDM and CDMA signals are provided. An OFDM packet data channel is overlaid over CDMA transmissions. The channel is scheduled slotwise between multiple users. In some embodiments, there is a CDMA packet data channel which is scheduled together with the OFDM packet data channel.

Abstract: Signal properties of a signal section (106) comprising a training sequence are compared with corresponding signal properties of other signal sections (108, 110). At a too large discrepancy, co-sequence interference is concluded to be present. The used signal property can preferably be a signal-to-noise ratio measure or a signal statistics measure. If the existence of co-sequence interference (102) is concluded, measures can be taken to avoid such interference and to mitigate the effects of the interference. A method for mitigating effects of co-sequence interference in channel estimation comprises a joint detection and estimation procedure performed under constrictions assuming presence of co-sequence interference.

Abstract: A method for synchronizing network elements to a global clock derived from the GPS clock acquired by a plurality of base stations. The global clock is distributed to controllers of various networks, and from there to network access devices. The network access devices further distribute the global clock to various wire-line and local wireless networks and from there, to the users served by these networks. The user equipment is enabled with a simple clock discipliner that adjusts the local clock to the global clock, resulting in a reliable synchronization across the converged communication networks.

Abstract: Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a module or communications device is configured to select first and second terminal pairs, the first terminal pair having a first transmitting terminal and a first receiving terminal, and the second terminal pair having a second transmitting terminal and a second receiving terminal, schedule a first signal transmission from the first transmitting terminal to an intermediate terminal, the first signal transmission being destined for the first receiving terminal, schedule, simultaneously with the first signal transmission, a second signal transmission from the second transmitting terminal to the second receiving terminal, and schedule a power level for each of the first and second signal transmissions that satisfies a target quality parameter for each of the intermediate terminal and the second receiving terminal.

Abstract: An apparatus and method for a power-efficient framework to maintain data synchronization of a mobile personal computer (MPC) are described. In one embodiment, the method includes the detection of a data synchronization wakeup event while the MPC is operating according to a sleep state. Subsequent to wakeup event, at least one system resource is disabled to provide a minimum number of system resources required to re-establish a network connection. In one embodiment, user data from a network server is synchronized on the MPC without user intervention; the mobile platform system resumes operation according to the sleep state. In one embodiment, a wakeup alarm is programmed according to a user history profile regarding received e-mails. In a further embodiment, data synchronizing involves disabling a display, and throttling the system processor to operate at a reduced frequency. Other embodiments are described and claimed.

Abstract: Common sample timing control for sample timing of multiple read channels, wherein the signal clocking of the signals received by the multiple read channels are correlated, for example from parallel tracks of magnetic tape that have been written simultaneously. In one embodiment, a common sample timing control comprises multiple phase error inputs, each indicating phase error of one of the read channels. Logic responsive to the multiple phase error inputs is configured to weight and crosscouple the phase error indication of each phase error input with the phase error indication of each other phase error input, and to apply gain related to the variance of noise of the phase error indications. Feedback logic is responsive to the crosscoupling and is configured to provide a sample timing phase estimate for each read channel.

Abstract: A communication controller and a method is provided for synchronizing a wireless communication device and a wireless communication network having two or more transmit antennas, which support transmit diversity. A reference signal is received from the wireless communication network via each one of a pair of the two or more transmit antennas. A preferred phase offset is then determined for the pair of transmit antennas, and then transmitted to the wireless communication network. Further adjustments of the requested phase and amplitude of the communications transmitted using the pair of transmit antennas are suspended, until further transmissions are received from the wireless communication network via the corresponding transmit antennas, which can be decoded in accordance with the preferred phase offset or a timer has elapsed corresponding to the maximum time needed for the wireless communication network to receive the preferred phase offset and synchronize to the same.

Abstract: A method and system applies MAC transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which also applies to a single mode as a trivial case. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions.

Abstract: In orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) systems, a wireless transmit/receive unit (WTRU) selects a random access channel (RACH) and a phase for a constant amplitude zero auto correlation (CAZAC) sequence for RACH transmission. The WTRU then transmits a RACH transmission to a Node B via the selected RACH. Once the RACH transmission is detected, the Node B sends an acknowledgement (ACK) to the WTRU over an ACK channel. The Node B may transmit the ACK on a shared channel. The WTRU may ramp up transmit power while the RACH transmission is transmitted, or steps up transmit power of a subsequent RACH transmission. The RACH transmission and data transmission may be either time multiplexed or frequency multiplexed. A plurality of RACHs may be defined and one of the defined RACHs may be selected randomly or based on predetermined criteria.

Abstract: A wireless receiver that sorts packets including a packet detector, multiple correlators, and multiple packet processors. Each correlator correlates a received signal according to packet type. Each packet processor processes the received signal according to packet type. A signal power detector may be provided to initially qualify the received signal as containing a packet, and the correlators determine whether a packet is present. The correlators may be configured for sequential or simultaneous correlation. For the simultaneous correlator configuration, a correlation monitor is provided to monitor correlation results to determine if the received signal contains a packet, and if so, to determine packet type. A low SNR packet detector may be provided which correlates the received signal to detect weak packet signals.

Abstract: An apparatus includes an estimator that includes a receiver that receives a plurality of frequency-domain symbols. Each symbol includes at least one of a plurality of pilot samples and a plurality of data samples. The estimator also includes a framer that observes the at least one of the plurality of pilot samples and the plurality of data samples in adjacent symbols, and a calculator that calculates an integer carrier frequency offset (CFO) estimate based on a reliability metric based on the at least one of the plurality of pilot samples and the plurality of data samples that are included in the frequency-domain symbols.

Abstract: A host base transceiver station BTS derives a reference timing signal from a physical layer training signal (such as a preamble) received from a neighbor network node/BTS. Downlink transmissions are then synchronized to the derived reference timing signal. This may be used as a holdover timing mode, such as when the host BTS determines that synchronization from a primary source is no longer reliable. In an embodiment, a reference oscillator of the host BTS is phase locked to the derived reference timing signal. Variations include one or multiple such training signals from one or multiple neighbor BTSs, selecting one BTS when the primary synchronization mechanism fails for several BTSs in the same area, and how to phase lock the oscillator without dithering about the target frequency. Apparatus and computer programs are also detailed.

Abstract: A multi-carrier cellular wireless network (400) employs base stations (404) that transmit two different groups of pilot subcarriers: (1) cell-specific pilot subcarriers, which are used by a receiver to extract information unique to each individual cell (402), and (2) common pilots subcarriers, which are designed to possess a set of characteristics common to all the base stations (404) of the system. The design criteria and transmission formats of the cell-specific and common pilot subcarriers are specified to enable a receiver to perform different system functions. The methods and processes can be extended to other systems, such as those with multiple antennas in an individual sector and those where some subcarriers bear common network/system information.

Abstract: Multiple computing devices are connected together using a high-speed wireless link. The wireless link enables expansion of available resources to the host device, such as one or more of volatile memory resources, non-volatile memory resources, and additional processor resources.

Abstract: This document describes tools capable of differentiating a superset of entities from which a user may receive current updates effective to provide current updates for only some of the entities of the superset. In one embodiment, for example, the tools enable a user of a mobile device to select a set of entities from which the user will automatically receive updates that are current, easily accessible, and visible at-a-glance. The tools may forgo providing current updates for entities that are not selected by the user, though the tools may provide these updates when explicitly requested by the user or at particular times or events.

Abstract: Data is synchronized between a mobile device and a computing device over a wireless link. Synchronization operations are scheduled according to a synchronization schedule that is based on a current time of day. In one embodiment, the day can be divided into different time periods by the user. The user can also specify the frequency with which synchronization operations are to be performed during each specified period. Further, the user can specify an override schedule which overrides the ordinary synchronization schedule established by the user when override criteria are present. For instance, if the mobile device is roaming, the synchronization schedule will be dictated by the override schedule, which may sync much less often, or not until a specific user synchronization request has been received. The present invention can be embodied both as a method and as a apparatus.

Abstract: Various embodiments provide an apparatus and method for adapting to failures in gateway devices in mesh networks. An example embodiment is configured to provide a plurality of interconnected nodes in a mesh network, at least one node of the plurality of nodes being designated a primary node, the primary node providing timing synchronization for other nodes of the plurality of nodes; and the primary node to designate another one of the plurality of nodes as a secondary node, the secondary node only providing timing synchronization for other nodes of the plurality of nodes when the primary node fails to provide the timing synchronization.

Abstract: A Relay System (RS)-based cellular network transmission method for MT having a function of single input and single output is provided. The method includes transmitting broadcast information to all RSs and Mobile Terminals (MTs); transmitting required data to each RS in an Orthogonal Frequency Division Multiplexing (OFDM) mode; performing the operations of selection of modulation scheme, addition of CP, addition of symbols for channel estimation and selection of OFDM symbols; feeding feedback information to the Base Station (BS); transmitting a synchronization request to the BS; transmitting a synchronization acknowledgement to the RS; transmitting information to each MT belonging to the BS; transmitting information to each MT belonging to the RS; the MT belonging to the BS transmitting ACK/NACK information to the BS; the MT belonging to the RS transmitting ACK/NACK information to the BS; and the BS informing the RS of the received ACK/NACK information.

Abstract: A method and system for providing a network protocol for utility services are disclosed are disclosed. In one embodiment, a computer-implemented method comprises discovering a utility network, wherein a constant powered meter sends network discovery messages to find the utility network. Neighboring meters are discovered, wherein the constant powered meter sends hello messages periodically. The constant powered meter is registered with the utility network. Further, the battery powered meter finds and associates itself with a constant powered meter. The constant powered meter also registers its associate battery powered meter with the utility network. The constant powered meter sends a node registration message to the gateway of the utility network. The constant powered meter can sense outage problems with the gateway and the neighbors of its network, and search and migrate to an alternate network.

Abstract: A method and apparatus of time synchronizing a plurality of base stations in a wireless communication system includes receiving an indication of a timing associated with a synch burst, where the synch burst is from a mastercell having a better time synchronization quality than other cells and measured by at least one cell other than the mastercell. A request is sent to a wireless transmit/receive unit (WTRU) for a measurement of a base station time of arrival (BSTOA) value of the at least one cell other than the mastercell. The BSTOA value from the WTRU is received and a timing adjustment is sent to the at least one cell other than the mastercell.

Abstract: In order to synchronize timings of transmission through a radio channel for broadcast communication even when a plurality of base stations communicate independently of one another, a receiver 11 in a radio base station 10 receives broadcast information INFO1 transmitted from a different radio base station 40 through a radio channel CH1 for transmitting the broadcast information. A controller 12 specifies a radio channel CH2 used for broadcast communication by the different radio base station 40 and adjusts a timing of transmission through the radio channel CH2 for broadcast communication in its own radio base station 10 to be synchronized with a timing of transmission in the different radio base station 40, based on the broadcast information INFO1. A transmitter 13 transmits data through the radio channel CH2 for broadcast communication in accordance with the adjusted timing TA of transmission.

Abstract: Stationary wireless network stations are woken up using Wake-on-WLAN functionality. Wake-on-WLAN is provided by paging stations in a wireless network. Paging may support mobile stations across multiple access points. Paging may also support stationary nodes with reduced overhead. Wake-on-WLAN is also provided to stationary stations in idle mode by signifying a wake-on event in a traffic indication map (TIM). Wake-on events may occur when a station is associated or disassociated with an access point. Upon receiving a wake-on event, a station associates or reassociates with an AP if necessary.

Abstract: In general, this disclosure is directed to techniques for computing a positioning solution for a mobile unit based on signals received from the satellite navigation system and the wireless communication system. The techniques allow for, and resolve, a synchronization bias that constrains a system time for the satellite navigation system and a system time for the wireless communication system relative to each other. The mobile unit may utilize the defined constraint to compute a position solution in environments where additional independent measurements would otherwise be required. The mobile unit may incorporate Receiver Autonomous Integrity Monitoring (RAIM) functionality to validate the position and time solutions derived from each of received signals. According to the techniques described herein, the mobile unit may be able to utilize the defined synchronization bias to apply RAIM or similar techniques in environments where such techniques would otherwise be indeterminate.

Abstract: The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field, all to permit cell-based adaptive insertion of C12.22 meters within an open framework. Particular present features relate to operation at the node level of a Discovery Phase in a frequency hopping network.

Abstract: A transmitting apparatus, a receiving apparatus, and a communication system are provided that allow a reduction in a frame loss due to interference caused by use of the same channel. A transmitting apparatus disposed in a base station includes a GPS receiver for receiving a GPS signal, a timing generator for controlling respective function blocks in accordance with the GPS signal and an inter-base-station control signal so as to precisely synchronize the timing of frame transmission among base stations, the front-end transmission processing unit including for converting transmission information into transmission time slots, a frame generator for generating a frame including a plurality of time slots and one frame guard, and a back-end transmission processing unit for transmitting the generated frame as a radio signal.

Abstract: A wireless communication system (20) includes a base station controller (22) that receives timing information from a data set (26) that is generated by a neural network (28). The data set (26) allows for generating timing information based upon previous time information received from a GPS (24) and in one example, is capable of covering a time interval of up to two weeks during which effective communication with the GPS may be interrupted. In one example, the data set is continuously updated so that the base station controller (24) continuously has up to two weeks of future time information available.

Abstract: In an ad hoc peer-to-peer communications network, timing synchronization is facilitated between two or more nodes. A node can establish an original symbol timing and receive a first timing synchronization symbol from a peer node. A timing adjustment can be calculated based in part on the first timing synchronization symbol. An adjusted symbol timing can be established by adjusting the first symbol timing by the calculated timing adjustment amount. The adjusted symbol timing can be conveyed to one or more peer nodes, in order to facilitate timing synchronization among the nodes.

Abstract: A wireless device may include two or more wireless interfaces capable of transmitting and/or receiving signals over separate wireless networks. To reduce the likelihood of interference, a processing unit may determine whether to permit a transmission under one wireless network when a reception under another wireless network is already in progress.

Abstract: An apparatus and a method for processing media data so that an MBS is supported in a BWA communication system. A traffic processing method supports an MBS in a broadband wireless access communication system having a number of base stations and at least one contents server for transmitting various media traffics to the base stations. The method includes reserving a resource for MBS burst assignment with regard to the base stations; requesting the contents server to provide a traffic to be transmitted to the base stations when the resource has been successfully reserved; shaping a media traffic transmitted by the contents server; and transmitting the media traffic to the base stations.

Abstract: A method and apparatus may improve success rate and time of call-setup while a mobile station is experiencing high interference. The method checks (255) if a mobile station is experiencing high-interference. This may occur when the mobile station fails to decode a paging channel of a serving cell (235) to read a first page. Upon determining that the mobile station is experiencing high-interference, the mobile station selects a set of cells (260) having the same location area identifier as the serving cell from a list of top neighboring cells, and selects a cell (265) from the set of cells, and synchronizes (270) with a base station of the selected cell. After synchronizing, the mobile station decodes the paging channel of the selected cell (275) and reads a second page from the paging channel of the selected cell including identical information data as the first page.

Abstract: A mobile user terminal, which transmits downlink quality information indicating downlink channel quality and an uplink pilot signal to a base station, in which a carrier frequency used for transmitting the downlink quality information and a carrier frequency used for transmitting the uplink pilot signal are selectable respectively from among a plurality of carrier frequencies assigned to a mobile user terminal, a mobile user terminal comprising of a radio transmitting unit, which transmits said downlink quality information and said uplink pilot signal by using the same carrier frequency among a plurality of carrier frequencies or by using adjacent carrier frequencies among a plurality of carrier frequencies.

Abstract: A mobile apparatus and method of timing synchronization. The mobile apparatus comprises a timing synchronization controller, a frame detector, a decoder, and a clock generator. The timing synchronization controller determines a number of times of the mobile station clock switching from a first clock speed to a second clock speed, and compares the number of times of the mobile station clock switching the clock speed with a predetermined number of clock speed switch. The frame detector, coupled to the timing synchronization controller, receives a control channel block when the number of times of clock speed switch reaches the predetermined number of clock speed switch. The decoder, coupled to the frame detector, decodes the control channel block to compute a timing error between the base station clock and the mobile station clock. The clock generator, coupled to the decoder, receives the timing error to compensate for the mobile station clock.

Abstract: A radio communication system for carrying out communications among a plurality of radio communication apparatus pertaining to the radio communication system through a radio network connecting the radio communication apparatus with each other wherein, each of the radio communication apparatus includes an access setting unit configured to prescribe a super frame period within a predetermined time and setting a reserved period within the super frame as a period for making an access to the radio network, and the access setting unit selects either a first reservation setting method not contending with reservation setting done by another radio communication apparatus, or a second reservation setting method possibly contending with reservation setting done by another radio communication apparatus.

Abstract: A transmitter (1) applies current from a power supply node to a ground node in synchronization with only a rise of an input signal and transmits a transmission signal including an RF pulse signal to a receiver (2). The receiver (2) applies current from a node (231) on which precharge is performed to a ground node only at the reception of the RF pulse signal, decreases the potential of the node (231) from a precharge potential Va to 0 V, and outputs an H-level output signal by detecting the decreased potential 0 V. After receiving the RF pulse signal, the receiver (2) performs precharge to change the potential of the node (231) to the potential Va.

Abstract: The present invention relates to methods, a communication network node and a user equipment for detecting collision of physical cell identities in a communication network system comprising radio base stations each serving at least one cell through which user equipments are moving. Reference signals comprising reference symbols corresponding to a physical cell identity are sent from said radio base stations to said user equipments over a radio interface. Transmission gaps of reference symbols are inserted in the reference signal in order to perform a physical cell identity collision test. The user equipments are arranged to detect if any other radio base station is sending reference symbols corresponding to the same physical cell identity during the transmission gaps. Thereby a physical cell identity collision is detected.

Abstract: In a cellular system in which OFDM is used, a forward link synchronization channel, a common pilot channel structure, an initial cell searching method of a mobile station, and an adjacent cell searching method for handover are required. A method of transmitting a forward synchronization signal in a wireless communication system according to the present invention includes generating a frame comprised of a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame comprises primary synchronization channel sequences which provide timing information of the sync blocks and a plurality of secondary synchronization channel sequences which provide timing information of the frame, wherein a cell identifier is specified by a combination of the primary synchronization channel sequence and a hopping code word specified by the plurality of the secondary synchronization channel sequences. Therefore, the cell searching time can be efficiently reduced in an OFDM system.

Abstract: Method and apparatus for block boundary detection is described. A signal is received. The signal is quantized to provide a quantized signal to at least one correlator, the quantized signal being a sequence of samples. The sequence of samples and a reference template including totaling partial results from the at least one correlator are cross-correlated to provide a result, the result being a symbol timing synchronization responsive to the cross-correlation also known as block boundary detection. The cross-correlation is provided in part by combining by exclusive-ORing a regression vector obtained from the sequence of samples and a coefficient term vector obtained from the reference template.

Abstract: Embodiments of methods and apparatus for providing an extended-local area system based on short messaging service are generally described herein. Other embodiments may be described and claimed.

Abstract: A method and apparatus for fast cell search based on a chirp reference signal transmission is disclosed herein. A primary synchronization channel (P-SCH) and two secondary synchronization channels (S-SCH1 and S-SCH2) will be utilized. S- SCH1 will comprise a reference sequence having a first index value and S-SCH2 will comprise a reference sequence having a second index value. S-SCH1 and S- SCH2 will be scrambled with a first and a second scrambling code, respectively. The second scrambling code will be based on the first index value.

Abstract: A method and arrangement for detecting a radio coverage in a synchronous multicellular mobile radio system having a multitude of synchronous base stations that are connected to an evaluating unit are provided. All base stations are operated in succession in a measuring operating mod. A respective field intensity of base stations that are locally adjacent and in a normal operating mode is measured, and the respectively measured field intensity data are evaluated by the evaluating unit. This enables a sufficient radio coverage to be determined in a highly cost-effective manner and, optionally, to be corrected.

Abstract: disclosed are a method of and a system for receiving data on a portable device. The method comprises the steps of providing a portable device having a data modem with active and dormant stages, and a short message service (SMS) capability; receiving a pre-defined SMS message and in response thereto, switching said data modem from said dormant stage to said active stage; and thereafter, receiving data through said data modem. The preferred embodiment of the invention uses a cellular PDA type device that can receive phone calls and Short Message Service (SMS) type messages even when the data modem of the PDA is not engaged. In this preferred embodiment, a special SMS message is sent from a back-end server infrastructure of a computer network to the PDA device to tell that device to “wake up” and connect to the network.

Abstract: A communication apparatus functioning as a mobile station may include a message receiver, a communication range determination unit, an existence determination unit, and a management signal output unit. The message receiver receives from a first control station a message that indicates a second control station. The communication range determination unit determines whether the apparatus is in a region within the second control station communication range. If the apparatus is in a region within the second control station communication range, then the existence determination unit determines whether there is another mobile station that belongs to a communication group of the first control station and exists in a region outside the second control station communication range. If the other mobile station is determined to exists, then the management signal output unit outputs a management signal as a third control station for constructing a communication group including the other mobile station.

Abstract: Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S1, is transmitted that comprises a pair of sequences arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2, is transmitted that comprises a pair of sequences arranged in a second ordering. The selected pair of sequences is uniquely identified with the particular cell group, and the first ordering of the sequences is used only for transmission in the known one of the time slots, and the second ordering of the sequences is used only for transmission in said another known one of the time slots.

Abstract: Multi-carrier point-to-multi-point CDMA system implementation reduces hardware changes in legacy single-carrier systems. The number of common downlink channels, such as timing/synchronization and paging channels, is reduced by designating an anchor carrier for transmitting these channels. Procedures for adding carriers and carrier acquisition are simplified through common carrier timing, signaling by the network to the user equipment (UE) of timing offsets and scrambling code selection, and other measures. Channel reuse is employed to minimize changes in asymmetric systems with different numbers of uplink and downlink carriers. Channel Quality Indicator (CQI) field is divided into multiple subfields to enable transmission of multiple CQIs and ACK/NACK indicators on one uplink carrier. Joint and separate scheduling schemes are shown for concurrent scheduling of a data stream transmission to a UE via multiple downlink carriers.

Abstract: A communication bandwidth is divided into a beacon period in which all master stations compete for transmission of a beacon packet, a first carrier sense multiple access (CSMA) period in which only authorized specific stations are allowed to compete for access, and a second CSMA period in which all stations are allowed to compete for access. The master stations exchange information with each other about a communication bandwidth being used in the first CSMA period, thereby calculating a communication bandwidth which can be used by each communication system in the first CSMA period, based on the information.

Abstract: A variable code-tracking loop filter in a receiver having the ability to change its parameters multiple times in response to received signals. Parameters for the code-tracking loop filter may be varied based on phase and frequency errors from an error detector. In one implementation, the code-tracking loop filter is able to repeatedly vary a single parameter, such as its received bandwidth, based on the phase and frequency errors, while in another, the code-tracking loop filter may vary two or more parameters, such as the loop bandwidth and the natural frequency.

Abstract: A method and arrangement for detecting a radio coverage in a synchronous multicellular mobile radio system having a multitude of synchronous base stations that are connected to an evaluating unit are provided. All base stations are operated in succession in a measuring operating mod. A respective field intensity of base stations that are locally adjacent and in a normal operating mode is measured, and the respectively measured field intensity data are evaluated by the evaluating unit. This enables a sufficient radio coverage to be determined in a highly cost-effective manner and, optionally, to be corrected.

Abstract: Data is transmitted via time division multiple access methods and every radio cell includes one base station each for the radio coverage of a plurality of mobile stations assigned to the radio cell. The base station receives, in addition to mobile station signals of its own radio cell, mobile station signals of neighboring radio cells and determines, on the basis of the mobile station signals received, a time synchronization value and/or a frequency synchronization value to which the base station synchronizes itself.

Abstract: A method is provided in which a first telecommunications terminal receives an indication of a characteristic of a first system software that is executing on a second telecommunications terminal. The first terminal identifies a second system software that possesses the characteristic. Then, the first terminal launches an instance of the second system software.