摘要:
The purpose of the present invention is to inhibit an increase in the amount of A/N resources, without changing the timing at which the error detection result of an SCell is notified when UL-DL configurations to be configured for each of the unit bands are different, from the timing at which the error detection result is notified when just a single unit band is configured. A control unit (208) transmits, using a first unit band, a response signal including error detection results about data received with both the first unit band and a second unit band. In a first composition pattern set for the first unit band, an uplink communication subframe is set to be the same timing as at least an uplink communication subframe of a second composition pattern set for the second unit band.
摘要:
When a handover request for performing a handover of a terminal (70) from a macro cell C1 to a CSG cell C2 is received from an SeNB 10 (S8), a base station (TeNB) (40) of the CSG cell C2 transmits a handover response in accordance with a handover enabled/disabled state (S12). The handover response includes an identifier of the terminal (70) in the CSG cell C2. Upon receiving the response, the SeNB (10) notifies the identifier to the terminal (70) (S14). The TeNB (40) repeatedly transmits a dedicated signal containing a handover command via a dedicated channel set using the identifier at an interval shorter than a gap period (S18). Accordingly, whether or not access is permitted can be judged promptly and a smooth handover can be realized.
摘要:
The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, a more flexible solution is proposed that may allow for taking different geometries of mobile stations within a cell into account. Similar to the aspect above, the size of the control channel information is aligned by means of modulation and/or coding, however the control channel information is aligned to one out of a set of numbers of coded control channel information bits and/or modulation symbols for each control channel.
摘要:
Provided is a relay station that is capable of improving PDSCH channel estimation accuracy, even in a case where a DL grant is provided that gives instructions for downlink data allocation for R-PDCCH. In this device, a signal separation unit (203) receives, of the control information and data and reference signals sent from a base station (100), the reference signals disposed in a first region and a second region within a pre-coding RB group (PRG) comprising one or more PRBs of the plurality of PRBs constituting a divided frequency region; the control information disposed in the first region; and the data disposed in the second region. A demodulation unit (204) demodulates the data on the basis of the reference signals. The demodulation unit (204) demodulates the data using the reference signals disposed in the second region.
摘要:
In order to enable simultaneous communication using a plurality of frequencies, provided is a mobile communication terminal including: a first combining circuit 210 that receives transmission signals of two frequency bands, and outputs a combined signal; a triplexer 220 including: a transmitting filter 221 that filters the signal inputted by the first combining circuit 210 and outputs the resultant signal; and a receiving filter A 222 and a receiving filter B 223 that each filter an inputted given signal and output the resultant signal; a combined signal filter 230 including: a filter P 231 having the same pass characteristic as that of the transmitting filter 221; and a filter Q 232 having the same pass characteristic as that of the receiving filter B 223, the combined signal filter 230 filtering the signal outputted by the first combining circuit 210 and outputting the resultant signal; a phase adjuster 240 that adjusts a phase of the signal outputted by the combined signal filter 230 to a phase opposite to that of an interference signal, and outputs the resultant signal; and a second combining circuit 250 that combines the signal outputted by the phase adjuster 240 with a signal (interference signal) that passes through both the transmitting filter 221 and the receiving filter B 223.
摘要:
A communication device and a communication method capable of implementing high-speed and high-quality communication processing such as handover. A mobile communication terminal is configured such that, in cases where it is judged by a power measurement unit that a reception signal received by a communication unit is equal to or less than a predetermined value, a frequency conversion unit performs computation by expanding a frequency range for performing time/frequency conversion with respect to the received reception signal. Further, a frequency measurement unit measures reception strength of reception signals in the expanded frequency range, and detects a frequency of, among the measured signals, a signal with a reception strength higher than a predetermined reception strength, and the communication unit executes connection processing by using the signal of this frequency.
摘要:
Provided is a mobile station which can obtain an equivalent diversity effect in each communication scheme while keeping to an minimum the increase in the circuit scale of a mobile station even when the mobile station is compatible with a plurality of communication schemes. In a mobile station (100) which performs either single-carrier frequency-division multiple access (SC-FDMA) communication or orthogonal frequency division multiple access (OFDMA) communication, an interleaving unit (103) interleaves a plurality of resource elements, which are divided into a plurality of code blocks, in a plurality of code blocks when either SC-FDMA or OFDMA communication is performed. In addition, only when OFDMA communication is performed, a serial-to-parallel (SIP) converter (107) converts the data symbols to parallel streams and generates the OFDM symbols. A shifter (108) provides a different frequency shift to each OFDM symbol for the OFDM symbols input from the S/P converter (107), and distributes and places the plurality of resource elements of each plurality of code blocks after interleaving in the frequency domain.
摘要:
It is an object to provide a wireless communication base station device that can prevent the decline of a system throughput due to the degradation of a utilization efficiency of a communication resource of a channel for carrying out a frequency diversity transmission when a frequency scheduling transmission and a frequency diversity transmission are concurrently carried out in multiple carrier communication. In the wireless communication base station device, a modulation unit (12) carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit (22) carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit (104). In this case, the allocation unit (103) allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
摘要:
A communication device and a communication method capable of implementing high-speed and high-quality communication processing such as handover. A mobile communication terminal is configured such that, in cases where it is judged by a power measurement unit that a reception signal received by a communication unit is equal to or less than a predetermined value, a frequency conversion unit performs computation by expanding a frequency range for performing time/frequency conversion with respect to the received reception signal. Further, a frequency measurement unit measures reception strength of reception signals in the expanded frequency range, and detects a frequency of, among the measured signals, a signal with a reception strength higher than a predetermined reception strength, and the communication unit executes connection processing by using the signal of this frequency.
摘要:
The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, a more flexible solution is proposed that may allow for taking different geometries of mobile stations within a cell into account. Similar to the aspect above, the size of the control channel information is aligned by means of modulation and/or coding, however the control channel information is aligned to one out of a set of numbers of coded control channel information bits and/or modulation symbols for each control channel.