Mobile radio set of a cellular network for the transmission of speech and/or data, and a method therefor

1. In a cellular network, a mobile radio set for the transmission of at least one of speech and data, said mobile radio set comprising:

a first storage unit operable to store a first set of channels associated with the cellular network;

a first acquisition unit operable, for each channel of the first set of channels, to determine a variable prior to a switching OFF of said mobile radio set and after a subsequent switching ON of said mobile radio set, each variable being dependent on a distance between said mobile radio set and a base station corresponding to a channel associated with the variable;

a second storage unit operable, for each channel of the first set of channels, to store each variable determined prior to the switching OFF of said mobile radio set; and

an evaluation unit operable, for each channel of the first set of channels upon the subsequent switching ON of said mobile radio set, to determine a deviation between a first corresponding variable stored in the second storage unit prior to the switching OFF of said mobile radio set and a second corresponding variable determined by said first acquisition unit after the subsequent switching ON of said mobile radio set, said evaluation unit further operable to decide whether said mobile radio set moved between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set as a function of each deviation.

2. The mobile radio set of claim 1 ,

wherein said evaluation unit is further operable to initiate a processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels when it is determined by said evaluation unit that said mobile radio set moved between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set; and

wherein said evaluation unit is further operable to initiate a processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with a second set of channels when it is determined by said evaluation unit that said mobile radio set did not move between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set, the second set of channels being a subset of the first set of channels.

3. The mobile radio set of claim 2 , further comprising:

a second acquisition unit operable to determine the second set of channels to include at least one base station co-located in a geographic location with said mobile radio set.

4. The mobile radio set of claim 2 , further comprising:

a third storage unit operable to store a list of a second set of channels include at least one base station co-located in a geographic location with said mobile radio set.

5. The mobile radio set of claim 1 ,

wherein said evaluation unit, as a function of a comparison of each deviation individually to a fixed value, is further operable to initiate one of a first processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels or a second processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with the second set of channels, the second set of channels being a subset of the first set of channels.

6. The mobile radio set of claim 1 ,

wherein said evaluation unit, as a function of a comparison of each deviation collectively to a fixed value, is further operable to initiate one of a first processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels or a second processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with the second set of channels, the second set of channels being a subset of the first set of channels.

7. In a cellular network, a mobile radio set for the transmission of at least one of speech and data, said mobile radio set comprising:

a first storage unit for storing all channels allocated to the cellular network or all channels suitable for a connection of said mobile radio set to at least one base station associated with the cellular network;

a first acquisition unit for determining, for all channels stored in the first storage unit, a variable which is dependent on a distance between said mobile radio set and a base stations making a channel available to said mobile radio set prior to a switching OFF of said mobile radio set and after a subsequent switching ON of said mobile radio set;

a second storage unit for storing, for all of the channels stored in the first storage unit, each variable determined prior to the switching OFF of said mobile radio set; and

an evaluation unit for determining a value characterizing a deviation between the variables stored in said second storage unit and the variables determined by said first acquisition unit after the subsequent switching ON of said mobile radio set,

wherein said evaluation unit decides that a movement of said mobile radio set has taken place between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set as a function of at least one value characterizing deviations between the variables stored in the second storage unit prior to the switching OFF of said mobile radio set and the variables determined by said first acquisition unit after the subsequent switching ON of said mobile radio set.

8. The mobile radio set of claim 7 , further comprising:

a second acquisition unit for determining channels suitable for a connection with a base station at the instantaneous location of said mobile radio set and

a third storage unit for storing a list containing the channels suitable for a connection with a base station at the instantaneous location of said mobile radio set,

wherein said evaluation unit utilizes all channels from the first storage unit for establishing a connection with said mobile radio set when one or more of the at least one value exceeds the fixed value, and

wherein said evaluation unit utilizes all channels from the third storage unit for establishing a connection with said mobile radio set when one or more of the at least one value fails to exceed the fixed value.

9. The mobile radio set of claim 7 ,

wherein each channel has a distinct frequency; and

wherein the variables are a function of a receiving level of each frequency.

10. The mobile radio set of claim 7 ,

wherein the at least one value characterizing the deviation between the variables stored in the second storage unit prior to the switching OFF of said mobile radio set and the variables determined by said first acquisition unit after the subsequent switching ON of said mobile radio set is a number of variables deviating from one another beyond a specified value.

11. The mobile radio set of claim 7 ,

wherein the at least one value characterizing the deviation between the variables stored in the second storage unit prior to the switching OFF of said mobile radio set and the variables determined by said first acquisition unit after the subsequent switching ON of said mobile radio set is a characteristic value calculated from a totality of deviations.

12. The mobile radio set of claim 11 ,

wherein the characteristic value is determined in accordance with the following formula:

d

=

1

n

·

∑

i

=

0

n

⁢

⁢

(

Pegel_alt

i

-

Pegel_neu

i

)

2

;

⁢

and

wherein n is the number of channels stored in said first storage unit, Pegel_alt i is an i th channel from among the n channels stored in said second storage unit prior to the switching OFF of said mobile radio set, and Pegel_neu i is an i th channel from among then channels measured by said acquisition unit upon the subsequent switching on of said mobile radio set.

13. The mobile radio set of claim 12 ,

wherein the i channels stored in the first storage unit are the channels of a specified frequency band with a specified bandwidth per channel.

14. In a cellular network, a method of operating mobile radio set for the transmission of at least one of speech and data, the method comprising:

for each channel of a first set of channels associated with the cellular network, determining a variable prior to a switching OFF of said mobile radio set and after a subsequent switching ON of said mobile radio set, each variable being dependent on a distance between said mobile radio set and a base station corresponding to a channel of the first set of channels corresponding to the variable; and

for each channel of the first set of channels upon the subsequent switching ON of said mobile radio set, determining a deviation between a first corresponding variable stored in the second storage unit prior to the switching OFF of said mobile radio set and a second corresponding variable determined by said first acquisition unit after the subsequent switching ON of said mobile radio set; and

deciding whether said mobile radio set moved between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set as a function of each deviation.

15. The method of claim 14 , further comprising:

initiating a processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels when it is decided that said mobile radio set moved between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set; and

initiating a processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with a second set of channels when it is determined by said evaluation unit that said mobile radio set did not move between the switching OFF of said mobile radio set and the subsequent switching ON of said mobile radio set, the second set of channels being a subset of the first set of channels.

16. The method of claim 14 , further comprising:

as a function of a comparison of each deviation individually to a fixed value, initiating one of a first processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels or a second processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with the second set of channels, the second set of channels being a subset of the first set of channels.

17. The method of claim 14 , further comprising:

as a function of a comparison of each deviation collectively to a fixed value, initiating one of a first processing of the first set of channels for connection of said mobile radio set to a first base station associated with the first set of channels or a second processing of a second set of channels associated with the cellular network for connection of said mobile radio set to a second base station associated with the second set of channels, the second set of channels being a subset of the first set of channels.