公开(公告)号：US6424619B2

公开(公告)日：2002-07-23

申请号：US23475499

申请日：1999-01-21

Applicant: QUALCOMM INC

Inventor： ODENWALDER JOSEPH P ,  JOU YU-CHEUN ,  TIEDEMANN JR EDWARD G

IPC: H04B1/707 ,  H04B7/24 ,  H04B7/26 ,  H04J13/00 ,  H04J13/18 ,  H04L1/00 ,  H04J11/00

CPC classification number: H04L1/0059 ,  H04B1/707 ,  H04B7/264 ,  H04B2201/70701 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/18 ,  H04L1/0045 ,  H04L1/0071 ,  H04L1/08

Abstract: High rate CDMA wireless communication is obtained by forming a set of individually gain adjusted subscriber channels. Each channel has a set of orthogonal subchannel codes having a small number of PN spreading chips per orthogonal waveform period. Preferably, the set of sub-channel codes are comprised of four Walsh codes, each orthogonal to the remaining set and four chips in duration. It is also preferred that pilot data be transmitted via a first transmit channel and power control data transmitted via a second transmit channel. The remaining two transmit channels are used for transmitting non-specified digital data including user data or signaling data, or both. One of the two non-specified transmit channels may be configured for BPSK modulation and the other for QPSK modulation.

Abstract translation: 通过形成一组单独增益调整的用户信道来获得高速CDMA无线通信。 每个信道具有每个正交波形周期具有少量PN扩展码片的一组正交子信道码。 优选地，该子信道码集合包括四个沃尔什码，每个沃尔什码与剩余的一组正交，四个码片持续时间。 还优选的是，经由第一发送信道和经由第二发送信道发送的功率控制数据来发送导频数据。 剩余的两个发送信道用于发送包括用户数据或信令数据的非指定数字数据，或两者。 两个非指定发送信道中的一个可以被配置用于BPSK调制，另一个用于QPSK调制。

公开(公告)号：EP0919098A3

公开(公告)日：1999-10-13

申请号：EP98931292

申请日：1998-06-16

Applicant: QUALCOMM INC

Inventor： VIJAYAN RAJIV ,  ODENWALDER JOSEPH P ,  WOLF JACK K ,  ZEHAVI EPHRAIM ,  LEE CHONG U

IPC: H04N21/2315 ,  H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/31 ,  H03M13/45 ,  H04J11/00 ,  H04L1/00 ,  H04L27/26 ,  H04N20060101 ,  H04N21/2383 ,  H04N21/438 ,  H04N7/24

CPC classification number: H03M13/2707 ,  H03M13/27 ,  H03M13/2936 ,  H03M13/31 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0071 ,  H04L27/2626 ,  H04L27/2649 ,  H04N21/2383 ,  H04N21/4382

Abstract: In an orthogonal frequency division multiplexing (OFDM) system (10) which uses an outer Reed-Solomon encoder and interleaver (24) and an inner convolutional encoder (26), after the inner convolutional encoding the data bits are interleaved by an inner interleaver (28), and then grouped into symbols, each symbol having 'm' bits. After grouping, the symbols are mapped to a complex plane using quadrature amplitude modulation (QAM). Thus, bits, not symbols, are interleaved by the inner interleaver (28). A receiver (12) performs a soft decision regarding the value of each bit in each complex QAM symbol received.

公开(公告)号：WO0245311A8

公开(公告)日：2002-07-11

申请号：PCT/US0143617

申请日：2001-11-20

Applicant: QUALCOMM INC

Inventor： ODENWALDER JOSEPH P ,  SARKAR SANDIP ,  HOLTZMAN JACK M

IPC: H04J11/00 ,  H04J13/00 ,  H04L1/00 ,  H04L1/08 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W4/18 ,  H04W28/06 ,  H04J13/02

CPC classification number: H04J13/00 ,  H04L1/0006 ,  H04L1/08 ,  H04L29/06 ,  H04L69/22 ,  H04L69/324 ,  H04W4/18 ,  H04W28/06

Abstract: In a communication system wherein packetized data is transmitted to remote stations in a channel sensitive manner, a preamble must be transmitted with each discrete data transmission to the remote station. Method and apparatus are presented herein for generating an optimized preamble structure for use with transmissions of packetized data. An optimized preamble structure is one that is easily detectable and decodable, yet occupies a small fractional overhead of the entire transmission to the remote station. Information that needs to be carried bz a preamble are used to create a basic structural unit, which is then redundantly permuted.

Abstract translation: 在通信系统中，分组数据以信道敏感的方式发送到远端站，必须在每个离散数据传输到远端站时发送前同步码。 本文介绍了用于生成用于传输分组数据的优化的前导码结构的方法和设备。 优化的前导码结构是一种易于检测和解码的结构，但占用了远程站整个传输的一小部分开销。 需要通过序言进行的信息用于创建基本的结构单元，然后进行冗余置换。

公开(公告)号：WO0207372A3

公开(公告)日：2002-04-25

申请号：PCT/US0121992

申请日：2001-07-11

Applicant: QUALCOMM INC

Inventor： ODENWALDER JOSEPH P

IPC: H03M13/23 ,  H04J13/00 ,  H04L1/00 ,  H04L1/08 ,  H04Q7/36 ,  H04Q7/38

CPC classification number: H04L1/0057 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/08

公开(公告)号：WO9941934A9

公开(公告)日：1999-11-18

申请号：PCT/US9903088

申请日：1999-02-12

Applicant: QUALCOMM INC

Inventor： ODENWALDER JOSEPH P

IPC: H04B7/005 ,  H04W36/00 ,  H04W36/08 ,  H04W36/14 ,  H04W36/30 ,  H04W52/12 ,  H04W52/40 ,  H04W52/50 ,  H04W72/12 ,  H04Q7/38

CPC classification number: H04W36/0094 ,  H04W52/12 ,  H04W52/40 ,  H04W52/50

Abstract: A method and apparatus for minimizing disruption during a frequency search excursion to a target frequency. The method may be preformed as part of inter-frequency hard-handoff between cells on different RF CDMA channels. The method minimizes search times by tuning a selected mobile station (102) to a target frequency and collecting chip samples which are then stored in a buffer (207). Pilot searches and pilot strength measurements are not performed while on the target frequency. The selected mobile station (102) is tuned back to the original frequency and simultaneously resumes reception of forward link and transmission of reverse link communications. The chip samples collected on the target frequency are processed to calculate pilot strength. In another embodiment, the method minimizes disruption of service on the current frequency during the frequency search by increasing the amount of power allocated to other symbols contained in a data frame impacted by the search excursion. This power increase is a function of search excursion time.

Abstract translation: 一种用于使频率搜索偏移到目标频率的中断的最小化的方法和装置。 该方法可以作为不同RF CDMA信道上的小区之间的频间硬切换的一部分来执行。 该方法通过将所选择的移动台（102）调谐到目标频率并收集随后存储在缓冲器（207）中的芯片样本来使搜索时间最小化。 在目标频率下不进行导频搜索和导频强度测量。 所选择的移动台（102）被调回到原始频率，同时恢复前向链路的接收和反向链路通信的传输。 对目标频率上收集的芯片样本进行处理，计算导频强度。 在另一个实施例中，该方法通过增加分配给包含在由搜索偏移所影响的数据帧中的其他符号的功率的量来最小化在频率搜索期间对当前频率上的服务的中断。 这种功率增加是搜索偏移时间的函数。

公开(公告)号：WO2004112278A3

公开(公告)日：2005-09-15

申请号：PCT/US2004017163

申请日：2004-05-28

Applicant: QUALCOMM INC ,  LUNDBY STEIN A ,  ODENWALDER JOSEPH P

Inventor： LUNDBY STEIN A ,  ODENWALDER JOSEPH P

IPC: H04B7/005 ,  H04L1/00 ,  H04W52/00 ,  H04W52/16 ,  H04W52/26 ,  H04W52/32 ,  H04W88/02

CPC classification number: H04W52/16 ,  H04B1/711 ,  H04L1/0002 ,  H04W52/267 ,  H04W52/325

Abstract: A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel. The primary and secondary pilot channels are used to improve the SNR-Signal to noise Ratio-, reference phase and amplitude estimates by combining them for the decoding of the data on the data channel. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power level of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel. Based on the comparison between the calculated data rate of the data channel and a predetermined value, a determination is done, whether the transmission of the primary and the secondary common pilot channel is necessary.

Abstract translation: 一种方法和装置通过发送与数据信道相关联的主导频信道和次导频信道来提供有效的数据速率控制和功率控制过程。 主要和次要导频信道用于通过将它们组合在数据信道上的数据的解码来提高SNR信噪比，参考相位和幅度估计。 主导频信道和次导频信道的功率电平的比率基于数据信道的数据速率和有效载荷大小中的至少一个。 主导频信道的功率电平与数据信道的数据速率和有效负载大小中的至少一个无关。 可以基于数据信道的数据速率和有效负载大小中的至少一个来调整辅助导频信道的功率电平。 基于数据信道的计算数据速率与预定值之间的比较，进行确定是否需要传输主要和次要公共导频信道。

公开(公告)号：WO2004082165A2

公开(公告)日：2004-09-23

申请号：PCT/US2004006759

申请日：2004-03-05

Applicant: QUALCOMM INC ,  ODENWALDER JOSEPH P

Inventor： ODENWALDER JOSEPH P

IPC: H04J11/00 ,  H04B1/707

CPC classification number: H04J13/0077 ,  H04J13/0048

Abstract: Systems and methods for improving the performance of direct-sequence spread-spectrum communication systems. In one embodiment, a system comprises at least one communication channel that utilizes two different orthogonal spreading codes and corresponding portions of the available orthogonal code space. Portions of the data processed by the communication channel are demultiplexed (471) into different streams and covered (472, 473) with corresponding, different orthogonal spreading codes. The streams covered by the different orthogonal codes are then combined (475) and transmitted via the same communication channel. One embodiment utilizes at least two different Walsh codes of different lengths (+ - and + + - -) in order to make use of the three quarters of the Walsh space not utilized by low-rate legacy channels.

Abstract translation: 用于提高直接序列扩频通信系统性能的系统和方法。 在一个实施例中，系统包括利用两个不同的正交扩展码和可用正交码空间的相应部分的至少一个通信信道。 由通信信道处理的数据的部分被解复用（471）成不同的流并用相应的不同的正交扩展码覆盖（472,473）。 然后将由不同正交码覆盖的流合并（475）并经由相同的通信信道发送。 一个实施例利用不同长度（+ - 和+ + - - ）的至少两个不同的沃尔什码来利用未被低速率遗留信道利用的沃尔什空间的四分之三。

公开(公告)号：WO9843374A2

公开(公告)日：1998-10-01

申请号：PCT/US9805905

申请日：1998-03-25

Applicant: QUALCOMM INC

Inventor： ODENWALDER JOSEPH P ,  TIEDEMANN EDWARD G JR ,  JOU YU-CHEUN

IPC: H04B7/26 ,  H04L1/00 ,  H04L1/08 ,  H04L29/08 ,  H04B72/04

CPC classification number: H04L1/0057 ,  H04B7/264 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/08

Abstract: An apparatus for processing a frame of data for transmission comprises: a demodulator flag generator (2) for appending a flag indicative of a forthcoming frame of data using a supplemental channel; a CRC generator (4) for generating and appending to said frame of data a check bit sequence generated in accordance with said frame of data and a predetermined CRC format; a tail bit generator (6) for appending a 8 bit tail of predetermined value to said frame; an encoder (8) for encoding said frame in accordance with a predetermined encoder format; and an interleaver (10) for reordering encoded symbols. The apparatus is suitable for transmitting high speed digital data in a spread spectrum communications system. There is described a method for processing the data for transmission in a 1.2288 Mcps band and in a 3.6268 Mcps band. In addition, there is described a method for transmitting forward link and reverse link data of both rate set 1 digital data and rate set 2 digital data. Rate set 1 digital data comprises variable rate data at rates defined as MUX Option 1 in the IS-95 standard. Rate set 2 digital data comprises variable rate data at rates defined as MUX Option 2 in the appendix to the IS-95 standard. There are also described methods of transmitting the data for applications using packet switched technology and circuit switched technology.

Abstract translation: 一种用于处理用于传输的数据帧的装置，包括：解调器标志发生器（2），用于使用补充信道附加指示即将到来的数据帧的标志; CRC发生器（4），用于根据所述数据帧和预定的CRC格式产生和附加到所述数据帧的校验比特序列; 尾部位发生器（6），用于将预定值的8位尾部附加到所述帧; 编码器（8），用于根据预定的编码器格式对所述帧进行编码; 以及用于重新排序编码符号的交织器（10）。 该装置适用于在扩频通信系统中发送高速数字数据。 描述了在1.2288Mcps频带和3.6268Mcps频带中处理用于传输的数据的方法。 此外，描述了用于发送速率组1数字数据和速率组2数字数据的前向链路和反向链路数据的方法。 速率设置1数字数据包括以定义为IS-95标准中的MUX选项1的速率的可变速率数据。 速率集2数字数据包括以IS-95标准附录中定义为MUX选项2的速率的可变速率数据。 还描述了使用分组交换技术和电路交换技术来发送用于应用的数据的方法。

公开(公告)号：WO0247280A3

公开(公告)日：2003-01-16

申请号：PCT/US0144760

申请日：2001-11-29

Applicant: QUALCOMM INC

Inventor： RAZOUMOV LEONID ,  LUNDBY STEIN A ,  HOLTZMAN JACK M ,  TIEDEMANN EDWARD G ,  ODENWALDER JOSEPH P

IPC: H04B1/7103 ,  H04B7/005 ,  H04L1/00 ,  H04L1/20 ,  H04W52/36

CPC classification number: H04L1/0072 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0066 ,  H04L1/208 ,  H04W52/16 ,  H04W52/36 ,  H04W52/54

Abstract: A method for coherent estimation of the traffic-to-pilot energy ratio is presented. A received preamble is decoded (20), and then re-encoded (22). The received preamble is then multiplied by the re-encoded preamble (23). The results are summmed (24), squared (26), and then divided by a pilot energy value (28). In another method, a message (41) carrying energy information can be inserted between a subpacket preamble (40) and a subpacket (42).

Abstract translation: 提出了一种用于相干估计交通对导引能量比的方法。 接收到的前导码被解码（20），然后被重新编码（22）。 接收到的前导码然后被重新编码的前导码（23）相乘。 结果被求和（24），平方（26），然后除以导频能量值（28）。 在另一种方法中，携带能量信息的消息（41）可以插入在子分组前导码（40）和子分组（42）之间。

公开(公告)号：WO0035122A9

公开(公告)日：2002-08-29

申请号：PCT/US9929376

申请日：1999-12-09

Applicant: QUALCOMM INC

Inventor： LING FUYUN ,  ODENWALDER JOSEPH P

IPC: H03M13/27 ,  H04B7/06 ,  H04B7/26 ,  H04B14/04 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H04B7/0604 ,  H04L1/06 ,  H04L1/08 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0083 ,  H04L27/2602

Abstract: A demultiplexer (402) for channel interleaving in communications systems with multiple carriers and/or transmitter diversity includes a distribution module (700) that distributes data bits in succession to successive transmitter antennas, and a switching module coupled to the distribution module. The distribution module (700) routes one data bit to each antenna such that no data bit is routed to the same antenna as the previous data bit. The switching module controls the distribution module (700) to skip an antenna in the routing process once each time a predefined number of data bits has been routed. Alternatively, the switching module may control the distribution module to repeat an antenna in the routing process once each time a predefined number of data bits has been routed. The transmitter antennas may, in the alternative, be different carrier frequency bands.

Abstract translation: 用于具有多载波和/或发射机分集的通信系统中的信道交织的解复用器（402）包括分配模块（700），其将数据比特连续分配给连续的发射机天线，以及耦合到分配模块的切换模块。 分配模块（700）将一个数据位路由到每个天线，使得没有数据位被路由到与之前的数据位相同的天线。 每次预定数量的数据位被路由时，切换模块控制分配模块（700）在路由过程中跳过天线一次。 或者，交换模块可以每当预定数量的数据位被路由时，控制分配模块在路由过程中重复天线一次。 替代地，发射机天线可以是不同的载波频带。