公开(公告)号：US6009089A

公开(公告)日：1999-12-28

申请号：US700266

申请日：1996-08-20

Applicant: Howard C. Huang ,  Chih-Lin I ,  Stephan ten Brink

Inventor： Howard C. Huang ,  Chih-Lin I ,  Stephan ten Brink

IPC: H04B1/7107 ,  H04B1/7115 ,  H04B1/712 ,  H04J13/00

CPC classification number: H04B1/7107 ,  H04B1/71072 ,  H04B1/7115 ,  H04B1/712 ,  H04B2001/71077 ,  H04B2201/70701

Abstract: A Code-Division Multiple Access (CDMA) receiver is disclosed which removes the pilot signal from the received signal. The pilot signal is defined by its multipath parameters (amplitudes, phase shift and delays) and its signature sequence. Since this information is known at the user's receiver terminal (i.e., handset), the pilot signals of the interfering multipath components of the baseband received signal are detected and removed prior to demodulation of the desired multipath component. The pilot signal may be cancelled prior to or following the data accumulation stage.

Abstract translation: 公开了一种从接收信号中去除导频信号的码分多址（CDMA）接收机。 导频信号由其多径参数（幅度，相移和延迟）及其签名序列定义。 由于该信息在用户的接收机终端（即，手机）处是已知的，所以在解调期望的多路径分量之前检测和去除基带接收信号的干扰多径分量的导频信号。 可以在数据累积阶段之前或之后取消导频信号。

公开(公告)号：US5737326A

公开(公告)日：1998-04-07

申请号：US678834

申请日：1996-07-12

Applicant: Chih-Lin I ,  Andrzej Partyka ,  Charles Albert Webb, III

Inventor： Chih-Lin I ,  Andrzej Partyka ,  Charles Albert Webb, III

IPC: H04B1/7085 ,  H04B1/709 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L7/00 ,  H04B7/216 ,  H04J13/04

CPC classification number: H04B1/7085 ,  H04B1/709 ,  H04B7/264 ,  H04J13/0077

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. In the MC-CDMA receiver, once a timing correlator means has recovered the timing and control signals for the data signal received over any particular signal path, those timing and control signals are utilized by each of the N data (second type) correlator means for decoding and despreading an associated one of the N data signal channels received over that path.

Abstract translation: 多码（MC）码分多址（CDMA）接收机通过多个空中信号路径接收N（其中N≥1）个编码信号信道。 在MC-CDMA接收机中，一旦定时相关器装置恢复了用于在任何特定信号路径上接收的数据信号的定时和控制信号，则这些定时和控制信号由N个数据（第二类型）相关器装置中的每一个利用 解码和解扩通过该路径接收的N个数据信号信道中的相关一个。

公开(公告)号：US06178329B1

公开(公告)日：2001-01-23

申请号：US08881625

申请日：1997-06-24

Applicant: Pi-Hui Chao ,  Chih-Lin I

Inventor： Pi-Hui Chao ,  Chih-Lin I

IPC: H04Q730

CPC classification number: H04W16/10 ,  H04W16/12 ,  H04W28/16 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/082 ,  H04W88/08 ,  H04W92/20

Abstract: The present invention concerns the efficient use of the radio spectrum in wireless communications. Channel occupancy data and channel availability data concerning a specific base station and its neighbors are used to assign frequency channels to mobile units and/or base stations. The channel occupancy and availability data may be located at a base station or at a mobile switching center. Channels are preferably assigned as channel pairs.

Abstract translation: 本发明涉及无线电频谱在无线通信中的有效使用。 使用关于特定基站及其邻居的信道占用数据和信道可用性数据来向移动单元和/或基站分配频率信道。 信道占用和可用性数据可以位于基站或移动交换中心。 信道优选地被分配为信道对。

公开(公告)号：US6088335A

公开(公告)日：2000-07-11

申请号：US837588

申请日：1997-04-21

Applicant: Chih-Lin I ,  Sarath Kumar ,  Sanjiv Nanda

Inventor： Chih-Lin I ,  Sarath Kumar ,  Sanjiv Nanda

IPC: H04J13/04 ,  H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04W16/14 ,  H04W28/22 ,  H04W36/18 ,  H04W72/08 ,  H04W74/00 ,  H04B7/216

CPC classification number: H04W28/22 ,  H04B2201/70703 ,  H04W36/18 ,  H04W72/082

Abstract: A code division multiple access system provides a way of allocating an increased data rate to a requesting mobile station. A mobile station requesting a data rate in excess of the basic data rate sends received pilot strength data for its base station and base stations in adjacent cells. The received pilot strength data is used to determine an increased data rate to be assigned to the requesting mobile station. One feature assigns an increased data rate based on the difference in the maximum received received pilot strength data from a non-active base station (one not in connection with the mobile station) and the maximum received pilot strength data from an active base station (one in connection with the mobile station). Yet another feature utilizes a series of threshold levels, each pair of levels associated with a different permitted data rate. Using the received pilot strength data, a data rate is determined which satisfies all adjacent cell interference concerns. Another feature uses average adjacent cell capacity loads rather than threshold levels, together with the received pilot strength data, to determine the appropriate increased data rate to be assigned to a user requesting an increased data rate.

Abstract translation: 码分多址系统提供了一种将增加的数据速率分配给请求移动台的方式。 请求超过基本数据速率的数据速率的移动台将其基站和基站的接收导频强度数据发送到相邻小区。 所接收的导频强度数据用于确定要分配给请求移动台的增加的数据速率。 一个特征基于来自非活动基站（一个不与移动台连接的）的最大接收接收导频强度数据和来自活动基站的最大接收导频强度数据（一个 与移动台相关）。 另一个特征使用一系列阈值级别，每对级别与不同的允许数据速率相关联。 使用接收到的导频强度数据，确定满足所有相邻小区干扰关系的数据速率。 另一个特征使用平均相邻小区容量负载而不是阈值水平以及接收到的导频强度数据来确定要分配给请求增加的数据速率的用户的适当增加的数据速率。

公开(公告)号：US6055432A

公开(公告)日：2000-04-25

申请号：US911693

申请日：1997-08-15

Applicant: Mohamed Abdul Haleem ,  Chih-Lin I

Inventor： Mohamed Abdul Haleem ,  Chih-Lin I

IPC: H04W16/10 ,  H04W16/14 ,  H04Q7/00

CPC classification number: H04W16/10 ,  H04W16/14 ,  H04W28/16

Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The Co-existence of the two systems without excessive mutual interference is achieved through statistical systematic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation.

Abstract translation: 用于覆盖宏蜂窝系统的共存动态信道分配（DCA）技术有助于嵌入式自主底层微蜂窝（例如，室内）系统的共存。 通过统计系统地排除从动态分配到覆盖宏小区的通用信道集的预定义子集，可以实现两个系统的共存，而没有过多的相互干扰。 这些通道可用于底层系统。 排除是以最小的DCA性能降级完成的。

公开(公告)号：US6047190A

公开(公告)日：2000-04-04

申请号：US911694

申请日：1997-08-15

Applicant: Mohamed Abdul Haleem ,  Chih-Lin I

Inventor： Mohamed Abdul Haleem ,  Chih-Lin I

IPC: H04W16/10 ,  H04W16/14 ,  H04Q7/00

CPC classification number: H04W16/10 ,  H04W16/14 ,  H04W28/16

Abstract: Co-Existence Dynamic Channel Assignment (DCA) techniques for overlay macrocellular systems facilitate the coexistence of embedded autonomous underlay microcellular (e.g., indoor) systems. The co-existence of the two systems without excessive mutual interference is achieved through systematic deterministic exclusion of predefined subsets of the universal channel set from the dynamic assignment to the overlay macrocells. The sets of channels are made available to the underlay systems. The exclusion is done with minimal DCA performance degradation. Multiple deterministic exclusions methods are described.

Abstract translation: 用于覆盖宏蜂窝系统的共存动态信道分配（DCA）技术有助于嵌入式自主底层微蜂窝（例如，室内）系统的共存。 通过从动态分配到覆盖宏小区的通用信道集的预定义子集的系统确定性排除，实现了没有过度相互干扰的两个系统的共存。 这些通道可用于底层系统。 排除是以最小的DCA性能降级完成的。 描述了多个确定性排除方法。

公开(公告)号：US5881056A

公开(公告)日：1999-03-09

申请号：US700257

申请日：1996-08-20

Applicant: Howard C. Huang ,  Chih-Lin I ,  Andrzej Partyka ,  Stephan ten Brink ,  Charles Albert Webb, III

Inventor： Howard C. Huang ,  Chih-Lin I ,  Andrzej Partyka ,  Stephan ten Brink ,  Charles Albert Webb, III

IPC: H04B1/707 ,  H04B1/709 ,  H04B1/7115 ,  H04J11/00 ,  H04J13/00 ,  H04B7/216 ,  H04J13/04

CPC classification number: H04B1/709 ,  H04B1/707 ,  H04B1/7115 ,  H04J13/0077 ,  H04B2201/70714

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. The MC-CDMA receiver receives and demodulates the N encoded signal channels into N signal samples and includes a common circuit for time-sharing an accumulator, for accumulating the N signal samples, among a plurality of second correlators. Each of the plurality of second correlator means utilizes the time-shared accumulator to accumulate samples from each of the N signals which are then decoded into an associated one of the N signal channels.

Abstract translation: 多码（MC）码分多址（CDMA）接收机通过多个空中信号路径接收N（其中N≥1）个编码信号信道。 MC-CDMA接收机将N个编码信号信道接收并解调为N个信号样本，并且包括用于在多个第二相关器之间累积N个信号采样的累加器的时分共享电路。 多个第二相关器装置中的每一个利用时间共享累加器来累积来自N个信号中的每一个的样本，然后将其解码为N个信号信道中的一个相关联的信号。