Device and system for carrying out search procedures in a mobile radio receiver
AssigneeInfineon Technologies AG
InventorsBurkhard Becker, Markus Dötsch, Peter Jung, Tideya Kella, Jörg Plechinger, Sven Simon, Michael Schneider, Peter Schmidt
Life of this patent
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Abstract
A device for carrying out search procedures includes a memory for storing a digital received data sequence, and a memory storing a predetermined correlation data sequence. A correlation device has a first section, in which sequence elements of the received data sequence are correlated with sequence elements of the correlation data sequence. A variable number K of sequence element correlation results are summed in the second section, in order to form an accumulated correlation result.
Claims13
A correlation device for carrying out search procedures in a mobile radio receiver, comprising:
- two sections for correlating a digital received data sequence including individual sequence elements of predetermined length N obtained from a received radio signal with a predetermined, digital correlation data sequence including sequence elements each having a respective length,
- a first of said two sections correlating the individual sequence elements of predetermined length N in the received data sequence with the individual sequence elements of the same length in the correlation data sequence during parallel data processing of each sequence, and producing a sequence element correlation result for each correlation, and
- a second of said two sections summing a variable number K of the sequence element correlation results to form an accumulated correlation result during serial data processing.
A system, comprising:
- a first correlation device for carrying out search procedures in a mobile radio receiver, including two sections for correlating a digital received data sequence including individual sequence elements of predetermined length N obtained from a received radio signal with a predetermined, digital correlation data sequence including sequence elements each having a respective length, a first of said two sections correlating the individual sequence elements of predetermined length N in the received data sequence with the individual sequence elements of the same length in the correlation data sequence during parallel data processing of each sequence, and producing a sequence element correlation result for each correlation, and a second of said two sections summing a variable number K of the sequence element correlation results to form an accumulated correlation result during serial data processing;
- a second correlation device for carrying out search procedures in said mobile radio receiver, including two sections for correlating the digital received data sequence including individual sequence elements of predetermined length N obtained from the received radio signal with the predetermined, digital correlation data sequence including sequence elements each having a respective length, a first of said two sections correlating the individual sequence elements of predetermined length N in the received data sequence with the individual sequence elements of the same length in the correlation data sequence during parallel data processing of each sequence, and producing a sequence element correlation result for each correlation, and a second of said two sections summing a variable number K of the sequence element correlation results to form an accumulated correlation result during serial data processing;
- a common third section shared by said first and second correlation devices and in the form of an adder for adding the accumulated correlation results calculated in said second sections of said first and second devices.
Dependencies are inferred from the claim text.