公开(公告)号：US08472411B2

公开(公告)日：2013-06-25

申请号：US13042020

申请日：2011-03-07

Applicant: Ray-Guang Cheng ,  Yu-Feng Chou

Inventor： Ray-Guang Cheng ,  Yu-Feng Chou

IPC: H04B7/216 ,  H04B7/212 ,  H04W4/00

CPC classification number: H04L1/1867 ,  H04B1/71072 ,  H04L1/0003 ,  H04L1/0021

Abstract: Methods for multi-user detection in a CDMA-based channel for use in a base station receiver are provided. Signals, each including a CDMA code, are received. Correlation operations are performed on CDMA codes of received signals respectively to obtain corresponding first correlation values. CDMA codes are divided into first and second code groups according to a threshold and corresponding first correlation values. An interference cancellation procedure is performed on received signals to remove signals corresponding to first code group therefrom and to obtain a removed signal. Correlation operations are performed on CDMA codes of removed signal to obtain corresponding second correlation values. Each first correlation value is subtracted from a corresponding second correlation value and compared with a threshold to generate a comparison result. Whether CDMA codes within first code group are correct are determined according to comparison results, wherein the threshold is dynamically adjusted according to comparison results.

Abstract translation: 提供了在基站接收机中使用的基于CDMA的信道中的多用户检测方法。 接收包括CDMA码的信号。 对接收到的信号的CDMA码进行相关运算，以获得相应的第一相关值。 根据阈值和对应的第一相关值将CDMA码分成第一和第二码组。 对接收到的信号执行干扰消除过程以从其中去除对应于第一代码组的信号，并获得去除的信号。 对去除信号的CDMA码执行相关操作以获得相应的第二相关值。 从对应的第二相关值中减去每个第一相关值，并将其与阈值进行比较以产生比较结果。 根据比较结果确定第一代码组中的CDMA码是否正确，其中根据比较结果动态调整阈值。

公开(公告)号：US20100182906A1

公开(公告)日：2010-07-22

申请号：US12419301

申请日：2009-04-07

Applicant: Ray-Guang Cheng ,  Ping-Chen Lin

Inventor： Ray-Guang Cheng ,  Ping-Chen Lin

IPC: H04L12/26 ,  H04L12/28 ,  H04B7/14

CPC classification number: H04L47/805 ,  H04L41/5019 ,  H04L47/70 ,  H04L47/745 ,  H04L47/824

Abstract: A method for managing a call admission controller in a multi-hop wireless backhaul network is illustrated. The method provides a call access control mechanism in a multi-hop wireless backhaul network system by calculating at least one service quality parameter in the network and determining if service data transmitted from relay nodes is allowed to enter a gateway of the network according to the at least one service quality parameter. In exemplary embodiments of present invention, the service quality parameter includes a throughput, an average delay of packets, a number of remote devices, a packet loss rate, a number of the relay nodes, and an amount of service data of a specific class traffic in the network. A topology of the network may be a ring, a chain, or a tree topology, and a ripple protocol is utilized as media access control protocol in the network.

Abstract translation: 示出了用于管理多跳无线回程网络中的呼叫准入控制器的方法。 该方法通过在网络中计算至少一个业务质量参数，确定从中继节点发送的业务数据是否允许根据业务质量参数进入网络的网关，在多跳无线回程网络系统中提供呼叫接入控制机制 至少一个服务质量参数。 在本发明的示例性实施例中，服务质量参数包括吞吐量，分组的平均延迟，多个远程设备，分组丢失率，中继节点的数量以及特定类别业务的服务数据量 在网络中。 网络的拓扑可以是环形，链路或树形拓扑，并且纹理协议被用作网络中的媒体访问控制协议。

公开(公告)号：US07653041B2

公开(公告)日：2010-01-26

申请号：US11128794

申请日：2005-05-12

Applicant: Chih-Yung Shih ,  Ray-Guang Cheng ,  Chung-Ju Chang ,  Yih-Shen Chen

Inventor： Chih-Yung Shih ,  Ray-Guang Cheng ,  Chung-Ju Chang ,  Yih-Shen Chen

IPC: H04W4/00 ,  H04W72/00 ,  H04J3/16 ,  H04J3/24 ,  H04B7/212

CPC classification number: H04W74/02 ,  H04W52/0216 ,  H04W74/06 ,  Y02D70/142

Abstract: This invention provides a method for power-efficient transmission supporting integrated service over WLAN. The said invention combines the polling-based and the contention-based mechanisms, named on-demand polling (ODP). In the ODP scheme, a voice station is in the polling list when it is in the active mode. During the idle mode, it is configured to operate in the sleep mode for saving power. Also, it adopts the contention-based mechanism to join the list again while returning from the idle mode. On the other hand, the data station adopts the contention-based mechanism to transmit its packets over WLAN. In addition, to achieve service differentiation, the said invention also employs a prioritized access probability for voice over data services. Simulation results show that the said invention can reduce the power consumption for voice stations and enhance the throughput for data stations.

Abstract translation: 本发明提供了一种支持WLAN集成业务的功率效率传输方法。 所述发明结合了基于轮询和基于争用的机制，命名为点播轮询（ODP）。 在ODP方案中，当处于活动模式时，语音站位于轮询列表中。 在空闲模式下，它被配置为在睡眠模式下工作以节省电力。 此外，它采用基于争用的机制，从空闲模式返回时再次加入列表。 另一方面，数据站采用基于竞争的机制通过WLAN传输其数据包。 此外，为了实现服务差异，所述发明还采用用于语音数据服务的优先接入概率。 仿真结果表明，本发明可以降低语音站的功耗，提高数据站的吞吐量。

公开(公告)号：US20110053599A1

公开(公告)日：2011-03-03

申请号：US12869913

申请日：2010-08-27

Applicant: Hsien-Tsung Hsu ,  Yung-Ting Lee ,  Hua-Chiang Yin ,  Whai-En Chen ,  Ray-Guang Cheng

Inventor： Hsien-Tsung Hsu ,  Yung-Ting Lee ,  Hua-Chiang Yin ,  Whai-En Chen ,  Ray-Guang Cheng

IPC: H04W36/00

CPC classification number: H04W36/08 ,  H04W36/38 ,  H04W60/04 ,  H04W84/045

Abstract: A method for a handover procedure comprises detecting a status of a backhaul connection between an original femto base station and a backbone network, and sending a handover request message including a reason code and/or flag to at least one mobile station served by the original femto base station, then the at least one mobile station re-associates with at least one base station other than the original femto base station.

Abstract translation: 一种切换过程的方法包括检测原始毫微微基站与骨干网之间的回程连接的状态，以及向原始毫微微服务的至少一个移动台发送包括原因码和/或标志的切换请求消息 基站，则至少一个移动台与除原始毫微微基站之外的至少一个基站重新关联。

公开(公告)号：US20090003371A1

公开(公告)日：2009-01-01

申请号：US11937020

申请日：2007-11-08

Applicant: Ray-Guang Cheng ,  Li-Hung Liao

Inventor： Ray-Guang Cheng ,  Li-Hung Liao

IPC: H04L12/56

CPC classification number: H04L47/2441 ,  H04L47/50 ,  H04L47/568

Abstract: A method for transmitting packets and a network system thereof are provided. In the present invention, each packet entering the network system is added an assigning tag to indicate the arrival time of the packet, and at least two queues in a node of the network system are used for respectively sorting the local packets of the node and the relayed packets of the preceding node. The order of the packet for transmitting can be decided by comparing the assigning tags of the two packets positioned at first order in different queues. Therefore, a condition of First-In First-Out (FIFO) is satisfied in the network system, and the sequence for transmitting packets is arbitrated fair.

Abstract translation: 提供一种发送分组的方法及其网络系统。 在本发明中，进入网络系统的每个分组都添加了分配标签来指示分组的到达时间，并且使用网络系统的节点中的至少两个队列分别对节点的本地分组进行排序， 上一节点的中继报文。 可以通过比较不同队列中位于一阶的两个分组的分配标签来确定用于发送的分组的顺序。 因此，在网络系统中满足先入先出（FIFO）的条件，传输数据包的顺序是公平的。

公开(公告)号：US6075770A

公开(公告)日：2000-06-13

申请号：US749371

申请日：1996-11-20

Applicant: Chung-Ju Chang ,  Hung-Ming Chi ,  Ray-Guang Cheng ,  Tzung-Pao Lin ,  Yao-Tzung Wang

Inventor： Chung-Ju Chang ,  Hung-Ming Chi ,  Ray-Guang Cheng ,  Tzung-Pao Lin ,  Yao-Tzung Wang

IPC: H04L12/56 ,  H04Q11/04

CPC classification number: H04L49/309 ,  H04Q11/0478 ,  H04L2012/5632 ,  H04L2012/5634 ,  H04L2012/5684

Abstract: A method and system are disclosed for constructing a power spectrum based connection admission control table and using such a table in a communications network, such as an ATM network. Power spectrum parameters, such as the power spectrum DC component .gamma., half power bandwidth B.sub.w and average power .PSI..sub.w are transformed to .gamma., an equivalent half power bandwidth B.sub.e and an equivalent average power .PSI..sub.e, where B.sub.e is a predetermined constant. Since B.sub.e is constant, the transformation reduces the memory requirements for constructing a connection admission control table.

Abstract translation: 公开了一种用于构建基于功率谱的连接准入控制表并且在诸如ATM网络的通信网络中使用这样的表的方法和系统。 功率谱参数，例如功率谱DC分量+ E，ovsγ+ EE，半功率带宽Bw和平均功率PSI w被转换为+ E，ovsγ+ EE，等效半功率带宽Be和等效平均功率 PSI e，其中Be为预定常数。 由于Be是恒定的，因此转换减少了构建连接准入控制表的内存需求。

公开(公告)号：US5633858A

公开(公告)日：1997-05-27

申请号：US608704

申请日：1996-02-29

Applicant: Chung-Ju Chang ,  Lain-Chyr Hwang ,  Ray-Guang Cheng ,  Ji-Hsiang Yu

Inventor： Chung-Ju Chang ,  Lain-Chyr Hwang ,  Ray-Guang Cheng ,  Ji-Hsiang Yu

IPC: H04L29/06 ,  H04J3/24 ,  G06F13/00

CPC classification number: H04L29/06 ,  H04L45/745

Abstract: The present invention is related to a method adapted to be used in hashing algorithm for reducing conflict probability which comprises the steps of receiving a first physical address of a frame; generating a hashing address corresponding to the first physical address; comparing a second physical address corresponding to the hashing address with the first physical address to determine if the first and the second physical addresses match with each other; completing a packet calling process when the first and the second physical addresses match with each other, but going back to the comparing process when the first and the second physical addresses do not match with each other, to determine whether there is another second physical address corresponding to the hashing address and matching with the first physical address; and ending the packet calling process when a number of times that the comparing process is proceeded is greater than a reference value. By this method, a specific conflict probability is obtained, and according to the results, the conflict probability and the broadcasting probability are reduced and the source of the network is saved.

Abstract translation: 本发明涉及一种适用于减少冲突概率的散列算法的方法，包括以下步骤：接收帧的第一物理地址; 产生对应于第一物理地址的散列地址; 将对应于散列地址的第二物理地址与第一物理地址进行比较，以确定第一和第二物理地址是否彼此匹配; 当第一和第二物理地址彼此匹配时，完成分组呼叫处理，但是当第一和第二物理地址彼此不匹配时返回到比较过程，以确定是否存在另一个第二物理地址对应 到哈希地址并匹配第一个物理地址; 并且当进行比较处理的次数大于参考值时，结束分组呼叫处理。 通过这种方法，获得了特定的冲突概率，根据结果，减少了冲突概率和广播概率，节省了网络的来源。

公开(公告)号：US20120213099A1

公开(公告)日：2012-08-23

申请号：US13093837

申请日：2011-04-25

Applicant: Ray-Guang Cheng ,  Wen-Yen Cheng

Inventor： Ray-Guang Cheng ,  Wen-Yen Cheng

IPC: H04W4/06 ,  H04W24/00

CPC classification number: H04L12/189 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1685 ,  H04L1/1854 ,  H04L1/1896 ,  H04L27/0008 ,  H04L2001/0093 ,  H04L2001/125 ,  H04W4/06

Abstract: The invention is directed to a method for dynamically adapting a modulation and coding scheme for a base station transmitting a multicast-and-broadcast service to a plurality of subscribers. The method comprises periodically performing a transmission adapting process. The transmission adapting process comprises steps of setting a feedback condition according to a coverage corresponding to the multicast-and-broadcast service and sending a negative-acknowledge-based feedback query including the feedback condition, a feedback channel and feedback information corresponding to the multicast-and-broadcast service to the subscribers. According to a feedback-receiving status, the base station adapts a modulation and coding scheme for transmitting the multicast-and-broadcast service.

Abstract translation: 本发明涉及一种用于动态地适配用于向多个订户发送多播广播服务的基站的调制和编码方案的方法。 该方法包括周期性地执行传输适配过程。 传输适应过程包括以下步骤：根据与组播广播服务相对应的覆盖设置反馈条件，并发送包括反馈条件的反确认反馈查询，反馈信道和对应于组播广播服务的反馈信息， 并向用户广播服务。 根据反馈接收状态，基站适应用于发送组播广播业务的调制编码方式。

公开(公告)号：US08111710B2

公开(公告)日：2012-02-07

申请号：US12358242

申请日：2009-01-23

Applicant: Ray-Guang Cheng

Inventor： Ray-Guang Cheng

IPC: H04W4/08

CPC classification number: H04L12/189 ,  H04J13/16 ,  H04L1/0003 ,  H04L1/0027 ,  H04L1/1685 ,  H04L1/1692 ,  H04L1/1867 ,  H04L12/1868 ,  H04L2001/0093 ,  H04W28/06 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/005 ,  H04W72/04 ,  H04W74/0833 ,  Y02D70/00

Abstract: The invention is directed to a method for receiving a feedback for at least a multicast broadcast service flow transmitting to a plurality of subscriber stations. The method comprises steps of assigning a plurality of code division multiple access (CDMA) codes to a feedback corresponding to the multicast broadcast service flow and then performing an allocation process for allocating a feedback channel for the subscriber stations. Thereafter, an announcement process is performed to announce a multiple feedback condition, the CDMA codes and the feedback channel to the subscriber stations. A channel monitoring process is performed for receiving a negative-acknowledgment (NACK)-based feedback sending from one of the subscriber stations unsatisfied with the multiple feedback condition and the NACK-based feedback is in a form of one of CDMA codes corresponding to the multicast broadcast service flow and is transmitted through the feedback channel.

Abstract translation: 本发明涉及一种用于接收至少向多个用户站发送的组播广播服务流的反馈的方法。 该方法包括以下步骤：将多个码分多址（CDMA）码分配给与多播广播服务流相对应的反馈，然后执行用于为用户台分配反馈信道的分配过程。 此后，进行通知处理，向用户站通知多个反馈条件，CDMA代码和反馈信道。 执行信道监视处理，用于接收从满足多反馈条件的用户站中的一个发送的基于否定确认（NACK）的反馈，并且基于NACK的反馈是与多播对应的CDMA码之一的形式 广播服务流，并通过反馈信道传输。

公开(公告)号：US07289468B2

公开(公告)日：2007-10-30

申请号：US10388891

申请日：2003-03-14

Applicant: Jen-Shun Yang ,  Ray-Guang Cheng ,  Chien-Chao Tseng

Inventor： Jen-Shun Yang ,  Ray-Guang Cheng ,  Chien-Chao Tseng

IPC: H04Q7/20

CPC classification number: H04W72/1242 ,  H04L47/14 ,  H04L47/50 ,  H04L47/522 ,  H04L47/58 ,  H04L47/626 ,  H04W72/1236

Abstract: The present invention relates to a scheduling unit in a wireless communication system. For sequentially receiving a plurality of Protocol Data Units (PDUs) in a plurality of communication sessions, accumulate and schedule the plurality of PDUs during a predetermined time frame, and transmit the PDUs based on a maximum power-strength of the wireless communication system. The scheduling unit comprises a time-based scheduler and a power-based scheduler. When the power-based scheduler schedules the PDUs, if the total sum of the required power of the PDUs exceeds the maximum power-strength of the wireless communication system, the power-based scheduler sends back to the time-based scheduler the PDUs whose power amounts to the exceeding of the maximum power-strength of the wireless communication system according to the corresponding priority values of the PDUs, so that the wireless communication system transmits all at a time the remaining PDUs whose total power remains within the maximum power-strength.

Abstract translation: 本发明涉及无线通信系统中的调度单元。 为了在多个通信会话中顺序地接收多个协议数据单元（PDU），在预定时间帧期间累加和调度多个PDU，并且基于无线通信系统的最大功率强度发送PDU。 调度单元包括基于时间的调度器和基于功率的调度器。 当基于功率的调度器调度PDU时，如果PDU的所需功率的总和超过无线通信系统的最大功率强度，则基于功率的调度器向基于时间的调度器发送其功率的PDU 相当于根据PDU的对应优先级值超过无线通信系统的最大功率强度，使得无线通信系统一次全部传输其总功率保持在最大功率强度内的剩余PDU。