摘要:
A cover glass, containing, by mole percentage: 15 to 40% of P2O5; 15 to 30% of Al2O3; 0 to 15% of SiO2; 0 to 20% of B2O3; 0 to 10% of Li2O; 0 to less than 20% of Na2O; 0 to less than 20% of K2O, provided that Li2O+Na2O+K2O is in a range from 15 to less than 20%; and from 1 to 35% of MgO+CaO+SrO+ZnO. The cover glass being suitable for at least one selected from the group consisting of a solid-state imaging element package and an air-tight sealing of a resin package, and having a sufficient strength not to undergo breakage even when subjected to external force.
摘要:
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 sub carriers 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.
摘要:
In addition to dedicated channel signal formation units 101-1 to 101-N, control information channel signal formation unit 110 is provided and this control information channel signal formation unit 110 forms control information for carrying out uplink packet transmission. The control information channel signal formation unit 110 multiplexes control information (RG information, ACK/NACK, etc.) directed to a plurality of communication terminals through a channel encoding section 111 according to a multiplexing rule preset between the base station apparatus and each communication terminal and spreads the control information using a spreading code common to the communication terminals through a spreading section 113 and thereby forms a control information channel signal for uplink packet transmission.
摘要:
A radio base station apparatus wherein the consumption of transmission power resources in a high-rate packet transmission can be suppressed. In the apparatus, a scheduling part (31) limits the candidates of an upstream line packet transmission rate to part of a plurality of transmission rates indicated by transmission rate combination information, selects an upstream line packet transmission rate from among the limited transmission rate candidates, and creates scheduling result information including transmission rate information indicative of the selected transmission rate. The scheduling result information is wireless transmitted from an antenna (108) to a communication terminal that is permitted to transmit upstream line packets.
摘要:
Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit (102) for modulating SCH data after being encoded; a sub carrier setting unit (105) for setting one of the sub carriers to a sub carrier (SCH sub carrier) constituting the OFDM symbol for SCH data transmission; and an IFFT unit (106) for mapping the SCH data to the sub carrier set by the sub carrier setting unit (105) among the sub carriers and performing IFFT to generate an OFDM symbol. The sub carrier setting unit (105) sets one of the sub carriers which has a frequency of a common multiple between the sub carrier interval and the cell search interval as an SCH sub carrier.
摘要:
A receiver apparatus wherein the processing amount for CQI (Channel Quality Indicator) measurements in a communication system having a plurality of system bandwidths can be reduced. In this apparatus, a narrow band CQI measurement part (109) measures, as a narrow band CQI, the CQI in resource blocks the number of which is required for the CQI measurement from the start position of a narrow bandwidth transmitted from a transmitter apparatus; a wide band CQI measurement part (110) extracts, from a system bandwidth transmitted from the transmitter apparatus, resource blocks the number of which is required for the CQI measurement, and then measures, as a wide band CQI representative of the channel quality of the whole system bandwidth, an average CQI in the extracted resource blocks; and a feedback information generating part (111) generates feedback information including both the narrow band CQI and the wide band CQI.
摘要:
Provided are a base station, a terminal, a band allocation method, and a downlink data communication method in which a mapping method for synchronization signals and report signals is implemented with high resource usage efficiency when a first system in which an independent single communication is allocated to a unit band co-exists with a second system in which a plurality of unit bands can be allocated to a single communication. In a base station (200), an OFDM signal generation unit (225) maps primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH), primary broadcast channel (P-BCH), and dynamic broadcast channel (D-BCH), which can be decoded by both an LTE terminal and an LTE+ terminal, to some of a plurality of unit bands available to the station itself. The OFDM signal generation unit (225) also maps D-BCH+, which can be decoded only by an LTE+ terminal, to all of the plurality of unit bands to produce a multiplexed transmission signal. When the terminal which has transmitted terminal capability information is an LTE+ terminal, a control unit (265) transmits a band movement indication which indicates changes in the reception band to that terminal.
摘要:
A radio receiving apparatus and a reference signal on an unused unit band measurement method wherein QoS can be maintained and measured in a wireless communication system that simultaneously uses first and second frequency bands, each of which includes a plurality of unit bands, to transmit a series of data signal sequences. In a terminal (100), a measurement executing part (150-1) measures, during a first measurement interval overlapping with the second data reception interval and time-divided together with the first data reception interval, the reception power of a reference signal on an unused unit band transmitted over a unit band other than a first used unit band in the first frequency band. In this way, the terminal (100) can execute a data communication with a source base station (200) over any one of the frequency bands at any timing, which can reduce the delay of a downstream signal transmission. That is, a terminal (100) can be realized which can maintain and measure QoS.
摘要:
A receiver apparatus wherein the processing amount for CQI (Channel Quality Indicator) measurements in a communication system having a plurality of system bandwidths can be reduced. In this apparatus, a narrow band CQI measurement part (109) measures, as a narrow band CQI, the CQI in resource blocks the number of which is required for the CQI measurement from the start position of a narrow bandwidth transmitted from a transmitter apparatus; a wide band CQI measurement part (110) extracts, from a system bandwidth transmitted from the transmitter apparatus, resource blocks the number of which is required for the CQI measurement, and then measures, as a wide band CQI representative of the channel quality of the whole system bandwidth, an average CQI in the extracted resource blocks; and a feedback information generating part (111) generates feedback information including both the narrow band CQI and the wide band CQI.
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.