摘要:
A system can suppress the degradation of the system's own throughput, while suppressing the interference with a different communication system sharing a frequency band with the system. In ST302, a base station selects a terminal (B) as a relay station. In ST305, the base station performs a separation between the subcarrier signals outside an FSS-used band and the subcarrier signals within the FSS-used band, and remaps the separated subcarrier signals within the FSS-used band to the subcarriers outside the FSS-used band. In ST306, the separated subcarrier signals outside the FSS-used band and the remapped subcarrier signals outside the FSS-used band are differentially transmitted at the same time. In ST308, the terminal (B) remaps signals received from the base station to the subcarriers within the FSS-used band and, in ST309, transfers those signals as remapped to a terminal (A). In ST310, the terminal (A) combines the signals transferred by the terminal (B) with signals received from the base station for decoding.
摘要:
A vehicular front structure is configured so that stresses do not concentrate in the upper joint part and the lower joint part of a front pillar, and even if the front pillar is made thin, the joint strength of the upper and lower parts of the front pillar is improved.The upper part of a front pillar (17) is joined to the side end part of a roof header member (41) and the front end part of a roof side member (42) via an upper joint panel (43). The front pillar is provided between the side edge of a windshield glass and the front edge of a side door and is formed in a tubular shape by the joint of a pillar inner panel (31) and a pillar outer panel (32), and the roof header member is provided along the upper edge of the windshield glass and is formed into a substantially tubular shape by the joint of a header inner panel (44) and a roof panel (45). Also, the roof side member is provided along the upper edge of the side door and is formed into a tubular shape by the joint of a side inner panel (46) and a roof-forming member (45). Further, the upper joint panel is provided on the cab inside of the pillar inner panel.
摘要:
A multicarrier transmitting apparatus capable of providing a fast cell search. A base station apparatus (100), which serves as a multicarrier transmitting apparatus for transmitting frames each including, as synchronization channel sequences, first synchronization sequences (P-SCH sequence) used for timing determinations and second synchronization sequences (S-SCH sequence) different from the first synchronization sequences, comprises a frame forming part (130) that forms frames each including the first synchronization sequence (P-SCH sequence) disposed in each of subcarriers symmetrical with respect to a DC component subcarrier (DC subcarrier) in the frequency direction; and an RF transmitting part (160) that transmits the frames. In this way, a frame receiving end can use a filter having a polarly symmetrical pass-band and needs no frequency shifting process, with the result that the processing amount at the receiving end can be reduced and hence a fast cell search can be achieved.
摘要:
A method of producing xylylenediamine of the present invention includes the steps of: subjecting a liquid mixture of phthalonitriles with liquid ammonia or a mixture of liquid ammonia and an organic solvent to a first catalytic hydrogenation treatment, thereby hydrogenating the phthalonitriles to obtain a reaction product (A), wherein a content of the liquid ammonia or the mixture of liquid ammonia and an organic solvent is 80 wt % or more; removing the liquid ammonia in the reaction product (A) to obtain a reaction product (B); subjecting the reaction product (B) to a second catalytic hydrogenation treatment, thereby hydrogenating cyanobenzylamine to obtain a reaction product (C); and distilling the reaction product (C) to purify xylylenediamine.
摘要:
In the production of an alicyclic aldehyde, a starting aromatic aldehyde is converted into an aromatic acetal for protecting the formyl group. The aromatic ring of the aromatic acetal is then hydrogenated to convert the aromatic acetal into an alicyclic acetal, which is then hydrolyzed to cleave the acetal protecting group to obtain the aimed alicyclic aldehyde.