摘要:
One embodiment of the present invention relates to a method for efficient reassignment of a secondary communication channel (having a first priority) within a white space, upon arrival of a conflicting primary user signal (having a second priority higher than the first priority). In particular, the method comprises reassigning a secondary communication channel to unused portions of one or more white spaces remaining after the arrival of one or more primary users. For example, in one embodiment wherein one or more secondary communication channels are operated at contiguous secondary frequency ranges within a white space, a primary/incumbent user may arrive at a frequency range that conflicts with the secondary frequency range and that generates unused frequency portions of the white space(s). The secondary communication channel may be reassigned to the unused frequency portions of the white space (e.g., forming a non-contiguous secondary communication channel, forming a secondary communication channel having a reduced bandwidth).
摘要:
Methods and apparatuses for two or more neighboring base stations to access a plurality of radio resources are described. The method includes defining a channel quality requirement by one or more access conditions and assigning the plurality of radio resources to the channel quality requirement, wherein a neighboring base station has access to the plurality of radio resources and the neighboring base station neighbors a target base station. The method also includes allowing the target base station access to the plurality of radio resources if the target base station satisfies the channel quality requirement.
摘要:
A transmitter for transmitting OFDM signals includes a space-time or space-frequency encoder to generate coded OFDM symbols by arranging a sequence of OFDM symbols or variants thereof in a predetermined space-time or space-frequency block matrix or a portion thereof. The transmitter also includes a frequency selector to select a particular OFDM carrier frequency out of a number of available OFDM carrier frequencies, and a signal generator to generate OFDM signals by applying the selected OFDM carrier frequency to the coded OFDM symbols.
摘要:
Embodiments are described that provide methods and radio networks that communicate data between a mobile communication device and a core network. The methods include using network coding to encode data, and communicating a subset of the encoded data between the mobile communication device and the core network through a dynamic relay station.
摘要:
In an embodiment, a radio device is provided. The radio device may include a signal transmitter configured to transmit a plurality of signals, the signals being transmitted with different intensities; a response receiver configured to receive a response message to one of the transmitted signals from a radio communication device having received the respective transmitted signal of the plurality of transmitted signals, the response message identifying the received message; and a assessment circuit configured to assess the reachability of the radio communication device from the radio device based on the intensity of the signal to which the radio communication device has responded.
摘要:
A method for device configuration is described comprising storing information about whether a mobile communication system comprising a mobile communication device operates correctly when a configuration is applied in a context of a configuration history to the mobile communication device; receiving a request for a configuration to be applied to mobile communication devices; and determining a configuration to be applied to the mobile communication devices based on the stored information.
摘要:
Methods and apparatus for transmission of selected segments of information (such as system context information). In one embodiment, a cognitive pilot channel base station (CPC-BS) is disclosed that enables the distribution of context information to various user equipment and mobile devices in an efficient manner. The exemplary CPC-BS is also optionally capable of distributing sensing tasks to external entities, and compiling the data results from these distributed tasks for use in performing future CPC transmissions based e.g., on the operational mode of the system. On-demand provisioning of context information over both broadcast and peer-to-peer communications with served users is also disclosed. In addition to the distribution of context information via the use of a single CPC-BS, master-slave relationships between multiple CPC-BSs are also described, which permit for a distributed architecture in providing context information to served users.
摘要:
A method for transmitting a data signal by a transmission unit of a wireless multiple-input/multiple-output (MI MO) communication system. The communication system includes the transmission unit and a reception unit, the transmission unit having a plurality of transmission antennas and the reception unit having a plurality of reception antennas. The method includes performing a first transmission of a data signal, the first transmission including transmitting the data signal by each one of the plurality of transmission antennas, and performing a second transmission of the data signal at a time later than the first transmission, the second transmission including transmitting at least one spectrally modified signal variant of the data signal by at least one antenna of the plurality of transmission antennas.
摘要:
In an embodiment, a mobile radio communication device is provided. The mobile radio communication device may include a receiver configured to receive radio pilot information via a predefined physical radio channel according to a radio communication technology family, wherein the radio pilot information includes availability information about the availability of at least one radio communication technology of at least one other radio communication technology family. The mobile radio communication device may further include a radio communication protocol controller configured to provide at least one radio communication protocol of the at least one radio communication technology of the at least one other radio communication technology family based on the received pilot information.
摘要:
In an embodiment, a mobile radio communication device is provided. The mobile radio communication device may include a receiver configured to receive radio pilot information via a predefined physical radio channel according to a radio communication technology family, wherein the radio pilot information includes availability information about the availability of at least one radio communication technology of at least one other radio communication technology family. The mobile radio communication device may further include a radio communication protocol controller configured to provide at least one radio communication protocol of the at least one radio communication technology of the at least one other radio communication technology family based on the received pilot information.