A wireless telecommunication system comprises base stations for communicating with terminal devices. One or more base stations support a power boost operating mode in which a base station's available transmission power is concentrated in a subset of its available transmission resources to provide enhanced transmission powers as compared to transmission powers on these transmission resources when the base station is not operating in the power boost mode. A base station establishes an extent to which one or more base stations in the wireless telecommunications system support the power boost operating mode conveys an indication of this to a terminal device. The terminal device receives the indication and uses the corresponding information to control its acquisition of a base station of the wireless telecommunication system, for example by taking account of which base stations support power boosting and/or when power boosting is supported during a cell attach procedure.

Telecommunications apparatus and methods

Provided are a radio transmission device and a radio transmission method capable of improving downlink and uplink throughput even when performing dynamic symbol allocation. In the device and the method, BS and MS share a table correlating a basic TF as a combination of parameters such as TB size used for transmitting only user data, an allocation RB quantity, a modulation method, and an encoding ratio, with a derived TF having user data of different TB size by combining L1/L2 control information. Even when multiplexing L1/L2 control information, Index corresponding to the basic TF is reported from BS to MS.

Radio transmission device and radio transmission method

A base station includes: means configured to manage frequency blocks; means configured to determine, for each frequency block, scheduling information for assigning one or more resource blocks to a communication terminal being in a good channel state; means configured to generate a control channel including the scheduling information for each frequency block; and means configured to frequency multiplexing control channels within the system frequency band and to transmit it. In addition, the base station transmits the control channel by separating a non-specific control channel to be decoded by a non-specific communication terminal and a specific control channel to be decoded by a communication terminal to which one or more resource blocks are assigned.

Base station, communication terminal, transmission method, and reception method

A base station device which performs communication with a mobile station by using a downlink shared channel includes: reception means for receiving transmission acknowledgement information for a downlink shared channel from the mobile station by a control channel which is frequency-multiplexed with an uplink shared channel; measurement means for measuring radio quality of the control channel; and judgment means for judging the reliability of the downlink radio quality information according to the radio quality. Moreover, a communication control method in the base station device which performs communication with the mobile station by using the downlink shared channel includes: a step of receiving transmission acknowledgement information for the downlink shared channel from the mobile station by the control channel which is frequency-multiplexed with the uplink shared channel; a step of measuring radio quality of the control channel; and a step of judging whether the mobile station has transmitted the downlink radio quality information according to the radio quality.

Base station device and communication control method

The systems and methods of the present invention provide a solution that makes data provably secure and accessible—addressing data security at the bit level—thereby eliminating the need for multiple perimeter hardware and software technologies. Data security is incorporated or weaved directly into the data at the bit level. The systems and methods of the present invention enable enterprise communities of interest to leverage a common enterprise infrastructure. Because security is already woven into the data, this common infrastructure can be used without compromising data security and access control. In some applications, data is authenticated, encrypted, and parsed or split into multiple shares prior to being sent to multiple locations, e.g., a private or public cloud. The data is hidden while in transit to the storage location, and is inaccessible to users who do not have the correct credentials for access.

Systems and methods for securing data in motion

An interference symbol decision section (208) compares a signal reception power at an interference position measured by an interference position reception power measurement section (208B) to a desired signal reception power value measured by a desired signal measurement section (208D) for each sub-carrier, thereby deciding a symbol serving as an actual interference symbol and outputs it to a turbo decoding section (209). The turbo decoding section (209) decides whether to calculate a LLR value of the symbol of each sub-carrier input from the decoding section (207) or make the LLR value ‘0’ according to the comparison result of the interference symbol decision section (208) and executes the decoding processing.

Ofdm reception device and ofdm reception method

A wireless communication base station apparatus that can raise the usage efficiency of the frequency resources of the whole system in a multicarrier transmission. In this apparatus, a separating part (103) separates symbols received from a modulating part (102) into symbols to be assigned to a first subcarrier group and into symbols to be assigned to a second subcarrier group. A setting part (106-1) sets the transmission power of the symbols, which are to be assigned to the first subcarrier group, to a power value as calculated by a power calculating part (105), while a setting part (106-2) sets the transmission power of the symbols, which are to be assigned to the second subcarrier group, to a power value as calculated by the power calculating part (105). Thus, the transmission power control is differently performed between the symbols to be assigned to the first subcarrier group and the symbols to be assigned to the second subcarrier group.

Wireless communication base station apparatus and wireless communication method

A radio communication station device can prevent limiting of resource allocation in a UE group. The radio communication device includes: a CCE allocation unit, modulation units, an arrangement unit, and a radio transmission unit. The CCE allocation unit allocates allocation information allocated to a PDCCH which is inputted from the modulation unit as follows. Among a plurality of search spaces shared by a greater number of UE groups as the CCE aggregation size of the PDCCH increases, a particular search space corresponding to the CCE aggregation size of the PDCCH and a mobile group of the PDCCH is selected as a space to which the allocation information is to be allocated. The arrangement unit arranges the allocation information in a downlink resource corresponding to the CCE of the particular search space allocated among the downlink resources secured for the PDCCH. The radio transmission unit transmits an OFDM symbol having the allocation information from an antenna to a mobile station.

Radio communication base station device, radio communication mobile station device, and control channel allocation method

A multi-carrier transmitter apparatus (100) receives line quality information of each sub-carrier from a multi-carrier receiver apparatus (200), and uses an interleave pattern setting part (108) to set an interleave pattern in accordance with the line quality of each sub-carrier. An interleaver (106) uses the set interleave pattern to interleave the I and Q components of a symbol. As a result, the diversity gain in the modulation diversity modulation/demodulation can be optimized in accordance with the line quality.

Multi-carrier transmitter apparatus, multi-carrier receiver apparatus, and multi-carrier communication method

Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication In the device, a modulation unit (12) executes a modulation process on Dch data after encoded so as to generate a Dch data symbol A modulation unit (22) executes a modulation process on the encoded Lch data so as to generate an Lch data symbol An allocation unit (103) allocates the Dch data symbol and the Lch data symbol to respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit (104) Here, when a plurality of Dch are used for a Dch data symbol of one mobile station, the allocation unit (103) uses Dch of continuous channel numbers

Masaru Fukuoka

Papers

Ofdm reception device and ofdm reception method

Wireless communication base station apparatus and wireless communication method

Radio communication base station device, radio communication mobile station device, and control channel allocation method

Multi-carrier transmitter apparatus, multi-carrier receiver apparatus, and multi-carrier communication method

Channel arrangement method and radio communication base station device