초록 ▼

The present invention relates to a cellular mobile radio system. Each cell includes a base station, a plurality of mobile stations and radio channels, for transmitted digital information between the base station and the mobile stations. More precisely the invention concern a method and an arrangemen

The present invention relates to a cellular mobile radio system. Each cell includes a base station, a plurality of mobile stations and radio channels, for transmitted digital information between the base station and the mobile stations. More precisely the invention concern a method and an arrangement for dynamically allocating time slots to connections on the radio channels, in order to increase the capacity on the radio channels. The maximum number of simultaneous connections on the radio channels with be more than the available number of the time slots per frame. When there are more connections established on a first and a second radio channel than time slots per frame, the connections share the available time slots in accordance with a determined multiframe time slot allocation scheme known to the base station and the mobile stations. The base station is selecting one of the time slot allocation schemes in dependence on the speech activity on the two radio channels. Information on the multiframe time slot allocation scheme selected, is transmitted on the first radio channel, to the mobile stations, during guard spaces.

대표청구항 ▼

A method of dynamically allocating time slots in frames on radio channels to connections in a cellular mobile radio system comprising base stations, mobile stations and radio channels, the method comprising the steps of: dividing a first and a second radio channel into time slots grouped in frames o

A method of dynamically allocating time slots in frames on radio channels to connections in a cellular mobile radio system comprising base stations, mobile stations and radio channels, the method comprising the steps of: dividing a first and a second radio channel into time slots grouped in frames of equal length; determining a plurality of multiframe time slot allocation schemes for the first and second radio channels; monitoring the number of established connections at a serving base station and comparing with the available number of time slots; monitoring the amount of information to be transmitted on established connections from the serving base station; selecting one of the time slot allocation schemes for the first and second radio channels in dependence upon the monitored number of established connections in relation to the available number of time slots and the monitored amount of information; transmitting from the serving base station in guard spaces of the first channel information on the multiframe time slot allocation scheme selected for the first and second radio channels; transmitting from the serving base station information on more connections than the time slots in a frame to served mobile stations on the first radio channel, the time slots being allotted to the connections in accordance with the multiframe allocation scheme selected; receiving in served mobile stations radio signals transmitted by the serving base station in the guard space of the first radio channel; and transmitting from the served mobile stations radio signals on the second radio channel, whereby the speech information is transmitted from the mobile stations in accordance with the multiframe time slot allocation scheme determined by the information in the guard spaces of the first radio channel.