公开(公告)号：GB2443866A

公开(公告)日：2008-05-21

申请号：GB0622764

申请日：2006-11-15

Applicant: MOTOROLA INC

Inventor： SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

IPC: H03M13/27 ,  H03M13/29

Abstract: An interleaver (100) is for re-arranging in each of L cycles a first set of K data elements into a second set of K data elements using a permutation vector which defines, based on the calculation in each cycle of a cm, an even number of pairs of positions of in the first set to be swapped, wherein cm satisfies a quadratic congruence condition. A processor (103) computes for each of the L cycles a value of the sequence cm and, based on the value, a set of indexes indicating at least two pairs of elements to be swapped, 15 and a processor (101) swaps in each cycle pairs of indicated elements, the swapping of pairs in each cycle being done together in a parallel swapping operation.

公开(公告)号：GB2443866B

公开(公告)日：2009-08-26

申请号：GB0622764

申请日：2006-11-15

Applicant: MOTOROLA INC

Inventor： SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

IPC: H03M13/27 ,  H03M13/29

公开(公告)号：GB2434948B

公开(公告)日：2008-04-09

申请号：GB0602195

申请日：2006-02-03

Applicant: MOTOROLA INC

Inventor： SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

IPC: H03M13/45 ,  H04L1/00 ,  H04Q7/28

公开(公告)号：GB2434948A

公开(公告)日：2007-08-08

申请号：GB0602195

申请日：2006-02-03

Applicant: MOTOROLA INC

Inventor： SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

IPC: H03M13/45 ,  H04L1/00 ,  H04Q7/28

Abstract: A wireless communication receiver comprises a SNR measurement logic (112) for measuring a SNR value of the received signal and signal processing logic (108) arranged to process the received wireless signal (Fig. 1, not shown). The signal processing logic (108) comprises demodulator logic (255) operably coupled to log likelihood ratio (LLR) logic (262) and decoding logic (265). A scaling factor (Q), dependent upon the measured signal-to-noise ratio, is applied to the vector of LLR values provided by de-mapping unit (260). The values are then saturated by converting any values outside the range [-A...+A] to one of -A or +A. The values are then quantized prior to input to a FEC decoder. Scaling factors corresponding to SNR values may be stored in a memory element. Applications include dual-mode TETRA-1 and TETRA-2 receivers.

公开(公告)号：WO2007092744B1

公开(公告)日：2008-08-21

申请号：PCT/US2007061501

申请日：2007-02-02

Applicant: MOTOROLA INC ,  SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

Inventor： SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

IPC: H04B1/69 ,  H04J13/02

CPC classification number: H04L1/0045 ,  H03M13/47 ,  H03M13/612 ,  H03M13/6577 ,  H03M13/6591 ,  H04L25/067

Abstract: A wireless communication unit (100) comprises a receiver for receiving a wireless signal having signal-to-noise ratio (SNR) measurement logic (112) for measuring a SNR value of the received signal and signal processing logic (108) arranged to process the received wireless signal. The signal processing logic comprises demodulator logic (255) operably coupled to log likelihood ratio (LLR) logic (262) and decoding logic (265). A scaling factor (Q) is applied to the LLR logic (262) dependent upon the measured signal-to-noise ratio.

Abstract translation: 无线通信单元（100）包括用于接收具有信噪比（SNR）测量逻辑（112）的无线信号的接收机，用于测量接收信号的SNR值，并且信号处理逻辑（108）被布置成处理 收到无线信号。 信号处理逻辑包括可操作地耦合到对数似然比（LLR）逻辑（262）和解码逻辑（265）的解调器逻辑（255）。 取决于测量的信噪比，缩放因子（Q）被应用于LLR逻辑（262）。

公开(公告)号：WO2008060843A2

公开(公告)日：2008-05-22

申请号：PCT/US2007082804

申请日：2007-10-29

Applicant: MOTOROLA INC ,  SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

Inventor： SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

IPC: G06F7/483

CPC classification number: H03M13/2771 ,  H03M13/2739 ,  H03M13/275 ,  H03M13/2957 ,  H03M13/6561

Abstract: An interleaver (100) is for re-arranging in each of L cycles a first set of K data elements into a second set of K data elements using a permutation vector which defines, based on the calculation in each cycle of a sequence c m , an even number of pairs of positions of elements in the first set to be swapped, wherein c m satisfies a quadratic congruence condition. A processor (103) computes for each of the L cycles a value of the sequence c m and, based on the value, a set of indexes indicating at least two pairs of elements to be swapped, and a processor (101) swaps in each cycle pairs of indicated elements, the swapping of pairs in each cycle being done together in a parallel swapping operation.

Abstract translation: 交织器（100）用于使用置换向量将L个数据元素的第一组K个数据元素重新排列成第二组K个数据元素，所述置换向量基于序列的每个周期中的计算c _{m ，要交换的第一组中的元素位置的偶数对，其中c m满足二次全等式条件。 处理器（103）针对L个周期中的每一个计算序列c m的值，并且基于该值，指示指示要交换的至少两对元素对的一组索引，以及 处理器（101）在每个周期中互换所指示的元素对，每个周期中的对的交换在并行交换操作中一起完成。}

公开(公告)号：WO2007092744A2

公开(公告)日：2007-08-16

申请号：PCT/US2007061501

申请日：2007-02-02

Applicant: MOTOROLA INC ,  SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

Inventor： SIDON JEAN ,  ALON YANIV ,  SERFATY SALOMON

CPC classification number: H04L1/0045 ,  H03M13/47 ,  H03M13/612 ,  H03M13/6577 ,  H03M13/6591 ,  H04L25/067

Abstract: A wireless communication unit (100) comprises a receiver for receiving a wireless signal having signal-to-noise ratio (SNR) measurement logic (112) for measuring a SNR value of the received signal and signal processing logic (108) arranged to process the received wireless signal. The signal processing logic comprises demodulator logic (255) operably coupled to log likelihood ratio (LLR) logic (262) and decoding logic (265). A scaling factor (Q) is applied to the LLR logic (262) dependent upon the measured signal-to-noise ratio.

Abstract translation: 无线通信单元（100）包括用于接收具有信噪比（SNR）测量逻辑（112）的无线信号的接收机，用于测量接收信号的SNR值，并且信号处理逻辑（108）被布置成处理 收到无线信号。 信号处理逻辑包括可操作地耦合到对数似然比（LLR）逻辑（262）和解码逻辑（265）的解调器逻辑（255）。 取决于测量的信噪比，缩放因子（Q）被应用于LLR逻辑（262）。