摘要:
The present invention relates to a method for monitoring a vehicle convoy containing at least two vehicles (1.1, 1.2), wherein the at least two vehicles (1.1, 1.2) in the vehicle convoy are each formed with a communication system, which is configured to use vehicle-to-vehicle communication to send and/or receive information, and a measuring apparatus, which is configured to capture values for at least one kinematic state parameter. The method involves kinematic state parameters being ascertained and regulated for at least one pair of vehicles (1.1, 1.2) in the vehicle convoy, which pair is formed by a first vehicle (1.1) in the vehicle convoy and a second vehicle (1.2) in the vehicle convoy arranged directly after the first vehicle (1.1) in the vehicle convoy, by means of allocated time and frequency resources.
摘要:
A method is provided for delivering a message to a mobile device (MTC) in a mobile communication network. Furthermore, a switch center (GMSC) is provided for delivering a message to a mobile device (MTC) in a mobile communication network and to a mobility management entity (MME) for delivering a message to a mobile device (MTC) in a mobile communication network. Moreover, a mobile device (MTC) is provided for receiving a message in a mobile communication network and to a database (HLR/HSS) of the mobile communication network.
摘要:
An IMS structure is described that hosts an IMS service based on a Rich Communication Suite (RCS) protocol for messaging only and IMS service based on VoLTE or Voice over WiFi. The IMS comprises functionality for rerouting a VoLTE or VoWiFi session invitation to a subscriber via a circuit switched network based on determined capabilities and authorizations of the invited subscriber.
摘要:
In a cellular communication system a radio terminal registers a network based service, e.g. a Communication Waiting supplementary service. By transmitting a register request comprising a corresponding option tag, the radio terminal explores whether the network supports the requested network based service. In that case a user profile associated with the requesting radio terminal is updated and the radio terminal may henceforth use that service.
摘要:
In a multicarrier radio transmission system complex-valued symbols are assigned to at least a first subcarrier and a second adjacent subcarrier, wherein the symbols assigned to the second subcarrier are offset in frequency by half a subcarrier against the symbols assigned to the first subcarrier.
摘要:
A radio transmission system based on a frequency divisional multiplexing method is described, wherein a transmit symbol comprises a plurality of data symbols assigned to at least two subcarriers. The information of symbols of one time slot is spread across the data symbols of subcarrier of the time slot to produce a transmit symbol being more robust to frequency selective channels.
摘要:
A method for enabling a communication between a mobile device (10) and a communication receiver (30) includes the steps of recognizing at least one receiving information type (32) of the communication receiver (30), and transforming a storing information type (22) of an information element (20) into a sending information type (12) of the mobile device (10) which is compatible with the recognized receiving information type (32) of the communication receiver (30).
摘要:
A transmission method and corresponding mobile communication system are described. A mobile terminal transmits information via an access channel to a base station that quantizes the received symbols and forwards these via a forward path to a central baseband unit. In the central baseband unit soft information relating to the transmitted information is determined based on received forwarded symbols, a quantizer codebook and the deployed mapping of the mobile terminal. Said soft information may serve as a basis for decoding the information.
摘要:
The present invention concerns, inter alia, a method for generating location data for locating a mobile communication terminal (20) in a cellular communication network, said communication network being comprised of a number of radio cells (40, 50, 60). The basics are that the communication terminal (20) successively establishes a connection to a number of two or more radio cells (40, 50, 60) having the same and/or different field strengths, in that the communication terminal (20) maintains the connection to the respective radio cell (40, 50, 60) for a defined time period, and in that after the defined time period has elapsed, the communication terminal (20) terminates the connection to the radio cell (40, 50, 60) and establishes a connection to the next radio cell (40, 50, 60). The information items arising from this process are used on the network side to generate location data by means of which the communication terminal (20) can be located. The locating procedure is simple and inexpensive, particularly since no chargeable data connections are made.
摘要:
A cellular telecommunication system comprising at least two communicatively coupled radio transmitter stations is described, wherein the stations are communicatively coupled via a backhaul link. Each base station is capable of beamforming, i.e. controlling the propagation direction of a transmitted radio signal. The radio base stations mutually exchange information regarding the beamforming in order to iteratively optimize the system performance (e.g. throughput, fairness, etc.).