摘要:
Method and Apparatus thereof for coordinating a joint transmission between a plurality of cooperative access nodes (BSlO, BS20) serving a plurality of user terminals in a mobile communications system, comprising the steps of : - receiving channel information by said access nodes from user terminals that are being served by said access nodes; exchanging between said access nodes of said received channel information thus ensuring that all channel information is distributed to all cooperative access nodes; - processing all received channel information by each one of said access nodes, and determining by said access nodes using said processed channel information, of a channel estimation for said joint transmission.
摘要:
A method and a device for data processing in a communication network are provided, wherein a mobile terminal receives several input signals from at least one base station; and wherein the mobile terminal processes said several input signals into a feedback information that is conveyed to at least one base station.
摘要:
A concept for estimating interfering channels in a multicellular radio communication system including a plurality of base stations and at least a mobile station is suggest, wherein pilot signals are transmitted from the base stations to at least a mobile station, additional pilot sequences are generated, a pattern is provided which defines a rule for distributing said pilot sequences to the base stations, said pilot sequences are modulated and superposed onto said pilot signals, and a pilot signal received at a mobile station is used for estimating interferences in the communication channel from the base station which transmits said pilot signal.
摘要:
It is described a method of operating a base station and a base station which uses a communication channel depending on channel state related information and time information e.g. a prediction time. In this way, problems due to outdating of the channel state related information may be overcome and a feedback overhead may be reduced. According to other embodiments, other parameters like a used prediction method, a prediction horizon, etc. are used to provide a better scenario adaption. Other embodiments relate to combined long term prediction and short term prediction and respective timing settings. Other embodiments relate to a method of operating a user equipment and a user equipment which is adapted for communicating the required time information between the base station and the user equipment.
摘要:
A method for transmitting a signal is described, wherein the method has transforming a signal into a frequency domain to obtain a spectrum, forming a filtered spectrum according to a filter spectrum and occupying a set of subcarriers of a frequency domain representation of an Orthogonal Frequency Division Multiplex (OFDM) signal with the filtered spectrum. A temporary signal is obtained by transforming the frequency domain representation of the OFDM signal into a time domain. The temporary signal is subjected to a phase modulation.
摘要:
It is provided a signal processing system, comprising at least a first, a second and a third digital-to-analog converter (DAC); a processing unit configured for splitting a sampled signal into a first and a second signal corresponding to different frequency portions of the sampled signal, transmitting the first signal to the first DAC, splitting the second signal into a first and a second subsignal and transmitting the first subsignal to the second DAC and the second subsignal to the third DAC, the first subsignal corresponding to the real part of the second signal and the second subsignal corresponding to the imaginary part of the second signal; an IQ mixer configured for mixing an analog output signal of the second DAC and an analog output signal of the third DAC and a combiner for combining an analog output signal of the first DAC and an output signal of the IQ mixer.