Method for determining a boundary of an information element, a system, and an electronic device
AssigneeNokia Corporation
InventorsMikko Kokkonen, Samuli Pietila
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Abstract
A method for determining a boundary of an information element, in which a repetition coded signal transmitted by satellites is received, which signal is modulated with information elements. A group of symbols forms one information element. A group of reference values are formed on the basis of the received signal. Of these reference values at least one vector is formed wherein the number of the elements corresponds to the number of symbols use in the transmission of the information element. A determination vector is formed on the basis of the at least one vector, whereafter the greatest of the elements of the determination vector is searched. The index of said elements indicates the boundary of the information element.
Claims48
A method in an electronic device having a receiver for detecting a boundary of an information element, the method comprising:
- receiving a repetition-coded signal with the receiver, which is modulated with information elements, wherein a group of symbols forms one information element;
- forming reference values on the basis of the received signal with a filtering means of the electronic device;
- forming elements of at least one vector on the basis of the reference values with a vector-forming means of the electronic device, in which the number of elements of at least one vector equalling the number of symbols in said group of symbols forming the information element;
- forming elements of a determination vector on the basis of said elements of said at least one vector with a vector-processing means of the electronic device;
- searching the largest value of the elements of said determination vector with a determination means of the electronic device, and
- using an index of the largest value of the element of said determination vector for indicating the boundary of the information element.
A system comprising a receiver for receiving a repetition-coded signal that is modulated with information elements, in which signal a group of symbols has been used for transferring one information element, wherein the receiver comprises means for determining a boundary of the information element from the received signal, wherein the system further comprises at least:
- filtering means for forming reference values according to the received signal,
- vector-forming means for forming elements of at least one vector on the basis of said reference values, in which the number of elements in said at least one vector equalling the number of symbols in said group of symbols forming the information element,
- vector-processing means for forming elements of a determination vector on the basis of said at least one vector, and
- determination means for searching the greatest element of said determination vector, wherein an index of the element is arranged to be used for indicating the boundary of the information element.
An electronic device comprising a receiver for receiving a repetition-coded signal that is modulated with information elements, in which signal a group of symbols has been used for transferring one information element, wherein the receiver comprises means for determining the boundary of the information element from the received signal, wherein the electronic device further comprises at least:
- filtering means for forming reference values on the basis of the received signal,
- vector-forming means for forming elements of at least one vector on the basis of said reference values, in which the number of elements of said at least one vector equalling the number of symbols in said groups of symbols forming the information element,
- vector-processing means for forming elements of a determination vector on the basis of said at least one vector, and
- determination means for searching the greatest element of said determination vector, wherein an index of the element is arranged to be used for indicating the boundary of the information element.
A method in an electronic device for detecting a boundary of an information element, in a received repetition-coded signal, wherein a group of symbols forms one information element, the method comprising:
- forming reference values on the basis of the received signal with a filtering means of the electronic device, wherein a different group of symbols is used for each of said reference values;
- searching a largest reference value from the reference values with the determination means of the electronic device, and
- using said largest reference value for indicating the boundary of the information element.
A system comprising a receiver for receiving a repetition-coded signal, in which signal a group of symbols has been used for transferring one information element, wherein the receiver comprises a device for determining a boundary of the information element from the received signal, wherein the system further comprises at least:
- a calculation block for forming reference values according to the received signal, wherein a different group of symbols is used for each of said reference values;
- and
- a determinator for searching a largest reference value from the reference values, wherein the system is configured to use the largest reference value for indicating the boundary of the information element.
An electronic device comprising a receiver for receiving a repetition-coded signal, in which signal a group of symbols has been used for transferring one information element, wherein the receiver is configured to determine the boundary of the information element from the received signal, wherein the electronic device comprises at least:
- a calculation block for forming reference values on the basis of the received signal, and
- a determinator for searching a largest reference value from the reference values, wherein the electronic device is configured to use the largest reference value for indicating the boundary of the information element.
An electronic device comprising a receiver for receiving a repetition-coded signal that is modulated with information elements, in which signal a group of symbols has been used for transferring one information element, wherein the receiver is configured to determine the boundary of the information element from the received signal, wherein the electronic device comprises at least:
- a calculation block for forming reference values on the basis of the received signal,
- a vector-forming block for forming elements of at least one vector on the basis of said reference values, in which the number of elements of said at least one vector equalling the number of symbols in said groups of symbols forming the information element,
- a vector-processing block for forming elements of a determination vector on the basis of said at least one vector, and
- a determinator for searching the greatest element of said determination vector, wherein an index of the element is arranged to be used for indicating the boundary of the information element.
Dependencies are inferred from the claim text.