1
Qiang Shen: Method and apparatus for signal to noise power ratio estimation in a multi sub-channel CDMA receiver. Nortel Networks, Bruce Garlick, April 6, 2004: US06717976 (32 worldwide citation)

The present invention provides a method and apparatus for regulating the transmission power of a transmitter generating a CDMA signal. The CDMA signal is transported over a main channel which includes a plurality of sub-channels, each sub-channel associated with a particular sub-signal of the CDMA s ...


2
Xixian Chen, Neil N McGowan, Weigang Li, Jeffrey D Stanier, M Khaled Islam, Qiang Shen, Xin Jin: Method and system for controlling device transmit power in a wireless communication network. Nortel Networks, Borden Ladner Gervais, Dennis R Haszko, December 20, 2005: US06977915 (11 worldwide citation)

A method and system for closed loop power control in a wireless communication network. A received signal is despread. The signal power of the despread received signal is estimated. The noise power of the despread received signal is estimated. Estimating the noise power includes multiplying the despr ...


3
Alon Saado, Qiang Shen: Read enable generator for a turbo decoder deinterleaved symbol memory. VIA Telecom, Christopher P Maiorana PC, September 4, 2007: US07266756 (9 worldwide citation)

The present invention concerns an apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to read a data signal in response to a read enable signal. The second circuit may be configured to generate the read enable signal. The third circuit may ...


4
Qiang Shen: Single engine turbo decoder with single frame size buffer for interleaving/deinterleaving. LSI Logic Corporation, Jaquez & Associates, Martin J Jaquez Esq, March 4, 2008: US07340664 (8 worldwide citation)

A method and apparatus for decoding and de-interleaving a received encoded and interleaved signal, the method employing and the apparatus including a single decoder coupled to a common buffer, the common buffer size equal to a frame of the received signal and the method further employing, and the ap ...


5
Qiang Shen, Witold A Krzymien: Closed loop power control scheme for wireless communication systems. Telecommunications Research Laboratories, Davis & Bujold P L L C, March 4, 2003: US06529709 (8 worldwide citation)

In a wireless terminal used in a telecommunications system in which control bits are sent from a base station to a wireless terminal (mobile station) to control the transmitted power of the wireless terminal, a (linear) predictor is used at the wireless terminal to predict the accumulation of the re ...


6
Qiang Shen: Communication signal decoding. VIA Telecom, James W Huffman, September 20, 2011: US08024644 (5 worldwide citation)

Provided are systems, methods and techniques that use an embedded error-detection code within a received communication signal to determine when to stop iterative decoding of the communication signal.


7
Ya Ping Wang, Jian Ming Yang, Guo Qiang Shen, Chee Keong Chin: Pick-up heads and systems for die bonding and related applications. Stats Chippac, October 18, 2011: US08037918 (5 worldwide citation)

Pick-up heads and systems are especially useful for picking up, transporting, and placing semiconductor dies at bond sites on packaging substrates. Alternatively, the heads and systems are useful for performing these tasks with any of various other planar objects. An exemplary head includes a shank ...


8
Qiang Shen: Inter-layer communication of receipt confirmation for releasing retransmission buffer contents. VIA Telecom, James W Huffman, July 28, 2009: US07567515 (4 worldwide citation)

Provided is a multi-layered transmission technique in which a signal indicating that a transmitted data packet has been correctly received by the receiver is provided from one communication layer to another. Based on that signal, the second layer releases the corresponding data from its retransmissi ...


9
Qiang Shen: -1), Efficient computation of the modulo operation based on divisor (2. VIA Telecom, James W Huffman, December 7, 2010: US07849125 (3 worldwide citation)

A system and method for computing A mod (2n−1), where A is an m bit quantity, where n is a positive integer, where m is greater than or equal to n. The quantity A may be partitioned into a plurality of sections, each being at most n bits long. The value A mod (2n−1) may be computed by adding the sec ...


10
Qiang Shen: Memory efficient streamlined transmitter with a multiple instance hybrid ARQ. VIA Telecom, Christopher P Maiorana PC, March 4, 2008: US07340669 (3 worldwide citation)

An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate an output signal in response to a first intermediate signal and a second intermediate signal. The second intermediate signal comprises a series of bit pairs. The second circ ...