中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.021 seconds)

    Method and apparatus for uplink communication in cellular communication system
    1.
    发明专利
    Method and apparatus for uplink communication in cellular communication system 有权
    蜂窝通信系统中上行链路通信的方法与装置

    公开(公告)号：JP2006087116A

    公开(公告)日：2006-03-30

    申请号：JP2005268258

    申请日：2005-09-15

    Applicant: Motorola Inc ,  モトローラ・インコーポレイテッドMotorola Incorporated

    Inventor： LOVE ROBERT T ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W

    IPC: H04W36/18 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04 ,  H04W88/08

    CPC classification number: H04W72/0406 ,  H04W36/18 ,  H04W84/042 ,  H04W88/08

    Abstract: PROBLEM TO BE SOLVED: To provide an efficient signal system for supporting the high speed uplink packet access service (HSUPA) for relieving a resource usage amount and an arithmetic processing load.
    SOLUTION: A cellular communication system (100) comprises a first base station (103) which schedules resource for a user equipment (101). When receiving a resource allocation message, the user equipment (101) transmits a first message comprising a transmit indication to a plurality of base stations (103 to 109) wherein the transmit indication is indicative of a subsequent transmission of a second message. The user equipment (101) then proceeds to determine a transmit format for the second message; and to transmit the second message to the plurality of base stations (103 to 109). When receiving the transmit indication, the plurality of base stations (103 to 109) proceed to configure their receivers to receive the second message. The first message may be transmitted in a control channel and the second message may be transmitted in a user data channel.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种用于支持高速上行链路分组接入服务（HSUPA）的有效信号系统，用于减轻资源使用量和算术处理负载。 蜂窝通信系统（100）包括对用户设备（101）调度资源的第一基站（103）。 当接收到资源分配消息时，用户设备（101）向多个基站（103至109）发送包括发射指示的第一消息，其中发送指示指示第二消息的后续发送。 用户设备（101）然后继续确定第二消息的发送格式; 并将所述第二消息发送到所述多个基站（103〜109）。 当接收到发送指示时，多个基站（103至109）继续配置其接收机以接收第二消息。 可以在控制信道中发送第一消息，并且可以在用户数据信道中发送第二消息。 版权所有（C）2006，JPO＆NCIPI

    Noise measurement to detect a request for retransmission in a cellular communication system
    3.
    发明专利
    Noise measurement to detect a request for retransmission in a cellular communication system 未知

    公开(公告)号：GB2432086A

    公开(公告)日：2007-05-09

    申请号：GB0522206

    申请日：2005-11-01

    Applicant: MOTOROLA INC

    Inventor： WHINNETT NICK W

    IPC: H04L1/18 ,  H04B1/10 ,  H04B7/26

    Abstract: A detection processor (203) detects retransmission feedback messages (ACK or NACK) in response to a detection threshold. A threshold processor (207) determines the detection threshold in response to a noise estimate generated by a noise processor (209). The noise processor comprises a sub-symbol generator (211) which divides a retransmission feedback symbol into a plurality of sub-symbols. Each of the sub-symbols is despread by a spreading code with a lower spreading factor than a spreading factor of the retransmission feedback symbol. A difference generator (213) then generates difference symbol values between sub-symbols and a noise estimator (215) generates the noise estimate in response to the difference symbol values, for example by determining the variance of the difference symbol values. An improved noise estimate may be determined resulting in improved detection performance and thus improved retransmission performance. Application to 3G cellular systems using CDMA and hybrid ARQ.

    Retransmission in a cellular communication system
    5.
    发明专利
    Retransmission in a cellular communication system 未知

    公开(公告)号：GB2432086B

    公开(公告)日：2007-12-12

    申请号：GB0522206

    申请日：2005-11-01

    Applicant: MOTOROLA INC

    Inventor： WHINNETT NICK W

    IPC: H04L1/18 ,  H04B1/10 ,  H04B7/26

    Abstract: An apparatus comprises a detection processor (203) for detecting retransmission feedback messages in response to a detection threshold. A threshold processor (207) determines the detection threshold in response to a noise estimate generated by a noise processor (209). The noise processor comprises a sub-symbol generator (211) which divides a retransmission feedback symbol into a plurality of sub-symbols. Each of the sub-symbols is despread by a spreading code with a lower spreading factor than a spreading factor of the retransmission feedback symbol. A difference generator (213) then generates difference symbol values between the plurality of sub-symbols and a noise estimator (215) generates the noise estimate in response to the difference symbol values, for example by determining the variance of the difference symbol values. An improved noise estimate may be determined resulting in improved detection performance and thus improved retransmission performance.

    Satisfying a delay requirement for a delay sensitive data connection
    7.
    发明专利
    Satisfying a delay requirement for a delay sensitive data connection 未知

    公开(公告)号：GB2465927A

    公开(公告)日：2010-06-09

    申请号：GB201004968

    申请日：2006-06-30

    Applicant: MOTOROLA INC

    Inventor： WANG FAN ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W ,  XIAO WEIMIN

    IPC: H04L12/56

    Abstract: A method to satisfy a delay requirement for a delay sensitive data connection through a scheduling, the method comprising: setting a discard timer for the delay sensitive data connection; determining an age of a packet corresponding to the delay sensitive service in a priority queue; performing a comparison between the age of a most recently successfully transmitted or time expired data packet with the discard timer setting, to determine whether the age of the compared packet is less than the discard timer setting by a predetermined margin; and calculating a new delay factor for the delay sensitive data connection based on the comparison and an old delay factor of the delay sensitive data connection. Aspects of the invention include the calculating step further comprising setting the new delay factor to a value obtained by increasing the old delay factor by a first predetermined factor and dropping the oldest packet if the age of the oldest packet is not less than the discard timer by a predetermined margin.

    METHOD AND APPARATUS FOR OUTER-LOOP POWER CONTROL FOR ENHANCED UPLINK COMMUNICATIONS
    8.
    发明申请
    METHOD AND APPARATUS FOR OUTER-LOOP POWER CONTROL FOR ENHANCED UPLINK COMMUNICATIONS 审中-公开
    用于增强上行链路通信的外环功率控制的方法和装置

    公开(公告)号：WO2006055475B1

    公开(公告)日：2007-05-10

    申请号：PCT/US2005041154

    申请日：2005-11-10

    Applicant: MOTOROLA INC ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W

    Inventor： GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W

    IPC: H04B7/00 ,  H04W52/12 ,  H04W52/28

    CPC classification number: H04W52/12 ,  H04W52/286

    Abstract: Various embodiments are described to address the need for an apparatus and method of outer-loop power control for enhanced uplink communications that address some of the outstanding problems in the prior art. Generally expressed, a base site (131), while a first uplink channel is inactive, monitors packet retransmissions to generate an uplink quality indicator. Here, packet retransmissions refers to the number of packet retransmissions used by a remote unit (101) to send packets to a base transceiver station (111) via at least one other uplink channel. Also, while the first uplink channel is inactive, the base site adjusts a signal-to-interference ratio (SIR) target for the first uplink channel based on the uplink quality indicator. Then, when the first uplink channel becomes active, the base site begins power controlling the first uplink channel using the SIR target.

    Abstract translation: 描述了各种实施例以满足对增强上行链路通信的外环功率控制装置和方法的需求，该装置和方法解决了现有技术中的一些突出问题。 一般来说，基站（131）在第一上行链路信道不活动时监视分组重传以生成上行链路质量指示符。 这里，分组重传指的是远程单元（101）经由至少一个其他上行链路信道向基站收发台（111）发送分组所使用的分组重传次数。 而且，在第一上行链路信道不活动的同时，基站基于上行链路质量指示符调整第一上行链路信道的信号干扰比（SIR）目标。 然后，当第一上行链路信道变为活动时，基站使用SIR目标开始对第一上行链路信道进行功率控制。

    CHANNEL QUALITY REPORTING IN A WIRELESS COMMUNICATION SYSTEM
    9.
    发明申请
    CHANNEL QUALITY REPORTING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的通道质量报告

    公开(公告)号：WO2009148749A3

    公开(公告)日：2010-03-04

    申请号：PCT/US2009042803

    申请日：2009-05-05

    Applicant: MOTOROLA INC ,  BARVE SATYEN D ,  TONG FEI ,  WHINNETT NICK W

    Inventor： BARVE SATYEN D ,  TONG FEI ,  WHINNETT NICK W

    IPC: H04W24/10 ,  H04W72/12

    CPC classification number: H04W72/1284 ,  H04W24/00 ,  H04W72/1231 ,  H04W72/1247

    Abstract: A wireless communication system comprises a scheduler for scheduling air interface data for a plurality of user equipments. A control channel scheduler (211) estimates a scheduling time for a scheduling of air interface data to a first user equipment (101) of the plurality of user equipments (101-105) in response to a current scheduling metric for the first user equipment and a reporting processor (213) generates a channel quality reporting request for the user equipment in response to the scheduling time. The channel quality reporting request is transmitted to the user equipment which proceeds to provide channel quality reports in accordance with the request. The approach may improve performance in a wireless communication system by reducing channel reporting resource requirements while still providing channel quality information when needed. The invention may be particularly suitable for a Long Term Evolution 3rd Generation Partnership Project cellular communication system or an IEEE 802.16 wireless communication system.

    Abstract translation: 无线通信系统包括：调度器，用于为多个用户设备调度空中接口数据。 控制信道调度器（211）响应于第一用户设备的当前调度度量，估计用于对多个用户设备（101-105）中的第一用户设备（101）的空中接口数据的调度的调度时间，以及 报告处理器（213）响应于调度时间生成用户设备的信道质量报告请求。 信道质量报告请求被发送到用户设备，继续根据请求提供信道质量报告。 该方法可以通过减少信道报告资源需求来提高无线通信系统的性能，同时在需要时仍提供信道质量信息。 本发明可以特别适用于长期演进第三代合作伙伴计划蜂窝通信系统或IEEE 802.16无线通信系统。

Patent Agency Ranking