摘要:
The specification and drawings present a new method, system, apparatus and software product for using a new modified dual symbol rate (MDSR) in an uplink direction in mobile communication systems. The communication between the mobile station and the network element may be performed within evolved GSM/EDGE radio access networks. The MDSR can be for example one and a half times a symbol rate of an uplink speech service, e.g., the current GSM/EDGE symbol rate (13/48 MHz) in the mobile communication system, thus the MDSR may be substantially 13/32 MHz or about 405 kHz. The uplink signal with the MDSR may be modulated, e.g., using a quadrature amplitude modulation (QAM), e.g., 16-QAM with 16 states and/or a quadrature phase-shift keying (QPSK, or π/4-QPSK) modulation.
摘要:
An indicator of a strength of a signal comprising a training sequence portion received in a radio propagation environment is provided. Samples are taken from the training sequence portion, an energy value of the samples over an estimated channel impulse response is computed and the indicator of the strength of the signal is estimated from the energy value.
摘要:
An indicator of a strength of a signal comprising a training sequence portion received in a radio propagation environment is provided. Samples are taken from the training sequence portion, an energy value of the samples over an estimated channel impulse response is computed and the indicator of the strength of the signal is estimated from the energy value.
摘要:
A method and corresponding equipment for use by a mobile station and/or a radio access network, for altering one or more characteristics of transmissions of the mobile station to a base transceiver station of the radio access network in respect to power and/or modulation and/or coding of the transmissions, based on monitoring broadcast transmissions from other base transceiver stations of the radio access network and determining an estimate of the likelihood of transmissions by the mobile station interfering with communication between the other base transceiver stations and the mobile stations in communication with those other base transceiver stations.
摘要:
The specification and drawings present a new method, system, apparatus and software product for using a new modified dual symbol rate (MDSR) in an uplink direction in mobile communication systems. The communication between the mobile station and the network element may be performed within evolved GSM/EDGE radio access networks. The MDSR can be for example one and a half times a symbol rate of an uplink speech service, e.g., the current GSM/EDGE symbol rate (13/48 MHz) in the mobile communication system, thus the MDSR may be substantially 13/32 MHz or about 405 kHz. The uplink signal with the MDSR may be modulated, e.g., using a quadrature amplitude modulation (QAM), e.g., 16-QAM with 16 states and/or a quadrature phase-shift keying (QPSK, or π/4-QPSK) modulation.
摘要:
The specification and drawings present a new method, system, apparatus and software product for a timeslot (TSL) reuse typically combined with a frequency reuse for a service based interference control in communication systems. TSL reuse method can be applied to a service with a wider spectrum or a higher symbol rate than for a normal channel bandwidth of a communication system to provide the way for controlling interference. The TSL reuse method can enable interference control for synchronized and unsynchronized networks in uplink (UL) or downlink (DL).
摘要:
The embodiment of the invention is related to a processor comprising, for example, means for determining a predetermined number of frequency estimates, means for determining an average of the frequency estimates for obtaining an averaged frequency offset, means for unbiasing received samples and/or impulse response values using the averaged frequency offset, means for calculating Doppler frequency estimates using the unbiased received samples and/or impulse response values and means for calculating selected second order statistics of the Doppler frequency estimates over a predetermined period.
摘要:
The present invention discloses a method and device for identifying unusable data blocks (bad frames) during communication in a network. The method comprises the steps of determining (S1) a classifier (CL_C) in a current data block, calculating (S3) a mean (M) of classifiers (CL—1 to CL_N) of a predetermined number (N) of data blocks, calculating (S4) a standard deviation (σ) of the classifiers (CL—1 to CL_N), calculating (S5) a threshold for identifying bad frames on the basis of the mean (M) and the standard deviation (σ) of the classifiers (CL—1 to CL_N), and distinguishing (S6) whether the current data block is usable or not on the basis of a comparison of the threshold (TH) and the current classifier (CL_C). By the method and the device, changing conditions of a radio channel can be taken into account quickly.
摘要:
The invention relates to a receiver and a receiving method in a receiver of a radio system. The method comprises: receiving (500) signal with an array antenna comprising at least two antenna elements, oversampling (504) the received signal, measuring (900) the spatial and temporal colour of the received oversampled signal, combining (9089 the received signal with combined maximum ratio combining and space-time interference rejection combining, controlling (902-904) the combining of the received signal on the basis of the measurement result.
摘要:
It is described a method for controlling radio measurements of a user equipment within a cellular network system, wherein the user equipment is served by a cell of a first cell type characteristic, the cell being assigned to a base station, wherein the cellular network system includes the cell and at least one further cell of a second cell type characteristic. The method includes providing, by the base station, a radio measurement configuration to the user equipment, wherein the radio measurement configuration is indicative for parameters to be applied by the user equipment for radio measurements, the radio measurement configuration includes different parameters being assigned to different cell type characteristics, and controlling the radio measurements of the user equipment based on the provided radio measurement configuration.