Method for transmitting information involving enhanced allocation of spectral resources
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYoshitaka Hara, Akinori Taira
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Abstract
A method for transmitting information between at least two transceivers TRA and TRB linked together by a communication channel, said information being carried by means of at least one carrying signal Csg having an operating frequency, includes, according to the invention, a frequency selection step in the course of which said operating frequency is dynamically selected among frequencies comprised within at least a first and a second non-adjacent frequency intervals.
Claims20
A method for transmitting information between at least two transceivers linked together by a communication channel, the information being carried by means of at least one carrying signal having an operating frequency, the method comprising:
- dynamically selecting the operating frequency among frequencies comprised within at least two non-adjacent frequency intervals,
- wherein the same transmission scheme is used for transmitting signals at operating frequencies selected from the frequency intervals, the method being intended to be used in a cellular telecommunication system including at least one radio base station and at least one mobile terminal, the method further including execution by the at least one mobile terminal, of reporting of conditions of the two frequency intervals by transmitting at least one report signal,
- wherein in a cellular telecommunication system including at least one radio base station and at least two mobile terminals, the method further comprising:
- channel monitoring to be carried out by the mobile terminals and in the course of which each mobile terminal analyzes if frequencies included in first and second frequency intervals are suitable for being selected as operating frequencies for communicating with its current active base station;
- channel condition reporting in the course of which each mobile terminal reports to the base station the findings of the channel monitoring it has performed;
- frequency allocating to be carried out by the radio base station, in the course of which one of the frequencies will be allocated to each mobile terminal for enabling said terminal to communicate with the radio base station;
- and
- operating frequency switching in the course of which the operating frequency is to be switched from a formerly selected frequency to a newly selected frequency, such a switching being performed gradually by simultaneously attenuating progressively the signal transmitted at the formerly selected frequency and amplifying progressively the signal transmitted at the newly selected frequency.
A telecommunication system including at least two transceivers comprising means adapted to be linked together by a communication channel through which information is to be carried by means of at least one carrying signal having an operating frequency, the system comprising:
- frequency selection means for dynamically selecting the operating frequency among frequencies comprised within at least two non-adjacent frequency intervals,
- wherein the same transmission scheme is used for transmitting signals at operating frequencies selected from the frequency intervals, the system being included in a cellular telecommunication system including at least one radio base station and at least one mobile terminal, the system further including reporting means included in the at least one mobile terminal for reporting of channel conditions of the two frequency intervals by transmitting at least one report signal,
- wherein the telecommunication system includes at least three transceivers, one transceiver being a base station and the other transceivers being mobile terminals, the system further comprising:
- channel monitoring means included in each mobile terminal for enabling said mobile terminal to analyze if frequencies included in the frequency intervals are suitable for being selected as operating frequencies for communicating with its current active base station;
- channel condition reporting means included in each mobile terminal for enabling said mobile terminal to report to the base station the findings of the analysis performed by the channel monitoring means;
- frequency allocation means included in the radio base station for allocating one of the available frequencies to each mobile terminal for communicating with the radio base station;
- and
- operating frequency switching means for switching the operating frequency from a formerly selected frequency to a newly selected frequency, such a switching being performed gradually by simultaneously attenuating progressively the signal transmitted at the formerly selected frequency and amplifying progressively the signal transmitted at the newly selected frequency.
A method for transmitting information between at least two transceivers linked together by a communication channel, said information being carried by means of at least one carrying signal having an operating frequency, the method comprising:
- computing at least one speed value representative of a mobility of one of the transceivers;
- dynamically selecting an operating frequency among frequencies comprised within at least a first and a second non-adjacent frequency intervals using the computed speed value;
- and
- operating frequency switching in the course of which the operating frequency is to be switched from a formerly selected frequency to a newly selected frequency, such a switching being performed gradually by simultaneously attenuating progressively the signal transmitted at the formerly selected frequency and amplifying progressively the signal transmitted at the newly selected frequency.
A method for transmitting information between at least two transceivers linked together by a communication channel, said information being carried by means of at least one carrying signal having an operating frequency, the method comprising:
- transmitting simultaneously information signals in the at least two discontinuous frequency bands;
- and
- switching the operating frequency in the course of which the operating frequency is to be switched from a formerly selected frequency to a newly selected frequency, such a switching being performed gradually by simultaneously attenuating progressively the signal transmitted at the formerly selected frequency and amplifying progressively the signal transmitted at the newly selected frequency.
Dependencies are inferred from the claim text.