Process and equipment for broadcasting messages to mobile radio communication stations
First Claim
1. Process for transmitting messages from an infrastructure of a time division multiple access radio communication network to mobile stations, said messages being broadcast successively and at regular intervals to the mobile stations on a particular radio channel, and comprising service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein for each service message which will be broadcast during a schedule period, the associated schedule message includes a cue indicating whether said service message has been broadcast during the preceding schedule period.
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0 Petitions
Accused Products
Abstract
The messages are broadcast successively and at regular intervals to mobile stations on a particular radio channel of the TDMA network. They comprise service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about the distribution of the service messages which will be broadcast during the associated schedule period. For each service message which will be broadcast during a schedule period, the associated schedule message includes a cue indicating whether this service message has been broadcast during the preceding schedule period. The schedule message furthermore indicates, as the case may be, the broadcasts of service messages which are repetitions of service messages already broadcast during the period. Use in particular in cellular radio telephone networks.
138 Citations
17 Claims
- 1. Process for transmitting messages from an infrastructure of a time division multiple access radio communication network to mobile stations, said messages being broadcast successively and at regular intervals to the mobile stations on a particular radio channel, and comprising service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein for each service message which will be broadcast during a schedule period, the associated schedule message includes a cue indicating whether said service message has been broadcast during the preceding schedule period.
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13. Process for transmitting messages from an infrastructure of a time division multiple access radio communication network to mobile stations, said messages being broadcast successively and at regular intervals to the mobile stations on a particular radio channel, and comprising service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein certain ones of at least the service messages may be broadcast several times during one schedule period, and the schedule message associated with said one schedule period includes cues indicating, as the case may be, the broadcasts of service messages which are repetitions of service messages already broadcast during said one schedule period, and wherein, when the schedule message includes a cue indicating that the broadcast of one of said service messages is a repetition of said one of said service messages already broadcast during the associated schedule period, it furthermore includes, in respect of said repetition, a sequence number of an earlier broadcast of said one of said service messages during said associated schedule period.
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14. Base station for a time division multiple access cellular radio communication network, comprising radio transmission and reception means for communicating with mobile stations on several radio channels, and means for forming a succession of messages broadcast at regular intervals on one of the radio channels, said messages comprising service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein for each service message which will be broadcast during a schedule period, the associated schedule message includes a cue indicating whether said service message has been broadcast during the preceding schedule period.
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15. Time division multiple access mobile radio communication station comprising transmission and reception means for communicating with a base station of a cellular radio communication network broadcasting at regular intervals on a particular radio channel service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein for each service message which will be broadcast during a scheduled period, the associated schedule message includes a cue indicating whether said service message has been broadcast during the preceding schedule period, the mobile station further comprising means for receiving and interpreting said messages operating when the mobile station is not communicating, and means for analyzing schedule messages in order to interrupt the operation of the receiving and interpreting means at moments in each schedule period, which are determined on the basis of the associated schedule message, at which the base station will rebroadcast one of said service messages already broadcast during the preceding schedule period and which the mobile station has already received during the preceding schedule period or previously.
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16. Base station for a time division multiple access cellular radio communication network, comprising radio transmission and reception means for communicating with mobile stations on several radio channels, and means for forming a succession of messages broadcast at regular intervals on one of the radio channels, said messages comprising service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein certain ones of at least the service messages may be broadcast several times during one schedule period, the schedule messages associated with said one schedule period includes cues indicating, as the case may be, the broadcasts of service messages which are repetitions of service messages already broadcast during said one schedule period, and wherein when the schedule message includes a cue indicating that the broadcast of one of said service messages is a repetition of said one of said service messages already broadcast during the associated schedule period, it furthermore includes, in respect of said repetition, a sequence number of an earlier broadcast of said one of said service messages during said associated period.
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17. Time division multiple access mobile radio communication station comprising transmission and reception means for communicating with a base station of a cellular radio communication network broadcasting at regular intervals on a particular radio channel service messages and schedule messages respectively associated with successive schedule periods, each schedule message including information about a distribution of the service messages which will be broadcast during the associated schedule period, wherein certain ones of at least the service messages may be broadcast several times during one schedule period, the schedule messages associated with said one schedule period includes cues indicating, as the case may be, the broadcasts of service messages which are repetitions of service messages already broadcast during said one schedule period, and wherein when the schedule message includes a cue indicating that the broadcast of one of said service messages is a repetition of said one of said service messages already broadcast during the associated schedule period, it furthermore includes, in respect of said repetition, a sequence number of an earlier broadcast of said one of said service messages during said associated period,
the mobile station further comprising means for receiving and interpreting said messages operating when the mobile station is not communicating, and means for analyzing schedule messages in order to interrupt the operation of the receiving and interpreting means at moments in each schedule period, which are determined on the basis of the associated schedule message, at which the base station will rebroadcast one of said service messages already broadcast during the preceding schedule period and which the mobile station has already received during the preceding schedule period or previously.
Specification