Global Patent Index - EP 1889434 A1

EP 1889434 A1 20080220 - DIFFERENTIAL DETECTION UNIT FOR THE ZIGBEE 802.15.4 STANDARD

Title (en)

DIFFERENTIAL DETECTION UNIT FOR THE ZIGBEE 802.15.4 STANDARD

Title (de)

DIFFERENTIELLE DETEKTIONSEINHEIT FÜR DEN ZIGBEE 802.15.4 STANDARD

Title (fr)

UNITE DE DETECTION DIFFERENTIELLE DESTINEE AU STANDARD ZIGBEE 802.15.4

Publication

EP 1889434 A1 20080220 (DE)

Application

EP 06754002 A 20060531

Priority

  • EP 2006005174 W 20060531
  • DE 102005026093 A 20050607

Abstract (en)

[origin: WO2006131243A1] The invention relates to a detection unit for detecting data symbols which are contained in a differentially demodulated signal and to which one respective PN sequence from a supply of sequences can be allocated at the transmission end. The inventive detection unit comprises the following units: a) a sequence supplying unit that is configured for supplying a third group of derived sequences. Said third group of derived sequences is provided with a derived sequence for each first PN sequence, which is assigned to said first PN sequence and can be derived therefrom by means of logical combinations but is not identical thereto while the derived sequences of the third group are different from each other only by cyclically shifting the chip values thereof; b) a correlation unit which is connected to the sequence supplying unit and is configured for calculating correlation results by correlating the differentially demodulated signal with each of the derived sequences of the third group; and c) an evaluation unit that is connected to the correlation unit and is configured for deriving the values of the data symbols by evaluating the correlation results. The invention also relates to a transceiver and an integrated circuit comprising such a detection unit.

IPC 8 full level

H04B 1/707 (2006.01); H04L 27/233 (2006.01)

CPC (source: EP US)

H04B 1/707 (2013.01 - EP US); H04L 27/2331 (2013.01 - EP US); H04B 1/70735 (2013.01 - EP US)

Citation (search report)

See references of WO 2006131243A1

Designated contracting state (EPC)

DE FR

DOCDB simple family (publication)

WO 2006131243 A1 20061214; WO 2006131243 A8 20080403; CN 101243665 A 20080813; CN 101243665 B 20110622; DE 102005026093 A1 20061221; DE 102005026093 B4 20070705; EP 1889434 A1 20080220; US 2010254304 A1 20101007; US 2012087307 A1 20120412; US 8107513 B2 20120131; US 8477829 B2 20130702

DOCDB simple family (application)

EP 2006005174 W 20060531; CN 200680029364 A 20060531; DE 102005026093 A 20050607; EP 06754002 A 20060531; US 201113314999 A 20111208; US 91715006 A 20060531