Ntt Mobile Communications Network, Inc.

Setsuya Ohashi

Takayuki Mizuki

Yasushi Yamao

Shogo Ito

Tsutomu Sakai

A radio paging signal coding control scheme capable of improving the reception characteristic of the receiver by carrying out a coding control to determine logical channels for accommodating paging signals such that the transmission rate equivalently becomes as low as possible according to the paging signal traffic, without interrupting the paging signal coding processing while maintaining the combination of transmission rate and modulation scheme for frames, is disclosed. In the case of using prescribed transmission rate and N-valued modulation scheme, logical channels to be used for transmission of paging signals among a plurality of available logical channels are determined by setting priority orders among a plurality of available logical channels such that a number of states of modulated signals becomes less than N when paging signal traffic is small.

Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic

When a transmit station pages a pager which has the paging area of that transmit station as its local area, it pages using an address which is unique in that area. When a pager with another local area has moved into this paging area and is paged, it is paged using the area identification number of its local area and the address of its receiver. Each pager can therefore be paged in any given paging area without having to be given a separate address for each paging area.

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Kanagawa-ken, Japan

Setsuya Ohashi