Method and apparatus for tracking signal in a wireless communication system
    21.
    发明专利
    Method and apparatus for tracking signal in a wireless communication system 有权
    在无线通信系统中跟踪信号的方法和装置

    公开(公告)号:JP2009177805A

    公开(公告)日:2009-08-06

    申请号:JP2008330767

    申请日:2008-12-25

    CPC classification number: H04W52/40 H04B1/7117 H04W52/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for tracking signals in a wireless communication system.
    SOLUTION: In one embodiment, a base station includes a rake antenna having a plurality of fingers. When any of the fingers is unlocked, the base station waits a predetermined time period and then adjusts a lock detecting filter 30. The adjustment is performed based on comparison of received signal energy to an adjusted energy threshold 38. The comparison may result in an increased energy level of the filter. In one embodiment, if a mobile station is in soft hand-off mode, the base station ignores the lock state of the fingers and transmits power control information based on the received signal energy. If the mobile station is not in soft hand-off mode, a predetermined power control pattern is applied for gradual power adjustment.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在无线通信系统中跟踪信号的方法和装置。 解决方案:在一个实施例中,基站包括具有多个指状物的前置天线。 当任何手指被解锁时,基站等待预定的时间段,然后调整锁定检测滤波器30.基于接收到的信号能量与调整的能量阈值38的比较来执行调整。比较可以导致增加 过滤器的能级。 在一个实施例中,如果移动站处于软切换模式,则基站忽略手指的锁定状态,并且基于接收到的信号能量发送功率控制信息。 如果移动台不处于软切换模式,则应用预定的功率控制模式来逐渐进行功率调整。 版权所有(C)2009,JPO&INPIT

    Uplink power control for wireless communication
    22.
    发明专利
    Uplink power control for wireless communication 有权
    无线通信上网功率控制

    公开(公告)号:JP2013240079A

    公开(公告)日:2013-11-28

    申请号:JP2013132492

    申请日:2013-06-25

    Abstract: PROBLEM TO BE SOLVED: To provide closed loop and open loop power control techniques for each antenna of user equipment (UE).SOLUTION: An access point may measure signals received from each antenna of the user equipment, calculate a power adjustment parameter for each antenna of the UE, and transmit the parameters to the UE. The UE may use the adjustment parameters to determine a transmit power value for each antenna. In addition, the UE may measure a path loss for each antenna and update the transmit power per antenna on the basis of the path loss and other parameters.

    Abstract translation: 要解决的问题:为用户设备(UE)的每个天线提供闭环和开环功率控制技术。解决方案:接入点可以测量从用户设备的每个天线接收的信号,计算每个天线的功率调整参数 并将参数发送给UE。 UE可以使用调整参数来确定每个天线的发射功率值。 此外,UE可以测量每个天线的路径损耗,并且基于路径损耗和其他参数来更新每个天线的发射功率。

    Efficient system identification schemes for communication systems
    23.
    发明专利
    Efficient system identification schemes for communication systems 有权
    高效的通信系统识别方案

    公开(公告)号:JP2013158021A

    公开(公告)日:2013-08-15

    申请号:JP2013061924

    申请日:2013-03-25

    CPC classification number: H04W48/12 H04J11/0069 H04L27/2602 H04W56/001

    Abstract: PROBLEM TO BE SOLVED: To facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment.SOLUTION: Relative locations of a PSC and an SSC in a radio frame can be a function of a parameter. A PSC sequence utilized to generate PSCs can be selected based upon a parameter. Inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Pseudo random sequence mappings (e.g., to cell IDs or tone locations) can be a function of a parameter. Parameters indicate whether the base station is part of a TDD or FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or femto cell, or whether the base station is associated with a unicast or multicast system.

    Abstract translation: 要解决的问题:为了有助于在无线通信环境中利用同步信号有效地指示与基站相关联的参数。解决方案:无线电帧中的PSC和SSC的相对位置可以是参数的函数。 可以基于参数来选择用于生成PSC的PSC序列。 从无线电帧中包含或排除PSC可以是参数的函数。 伪随机序列映射(例如,到小区ID或音调位置)可以是参数的函数。 参数指示基站是TDD或FDD系统的一部分,无线电帧是使用FS1还是FS2,基站是与宏单元还是毫微微小区相关联,还是基站是否与单播或多播系统相关联 。

    Position identification in wireless communication system
    25.
    发明专利
    Position identification in wireless communication system 有权
    无线通信系统中的位置识别

    公开(公告)号:JP2013040947A

    公开(公告)日:2013-02-28

    申请号:JP2012196108

    申请日:2012-09-06

    Abstract: PROBLEM TO BE SOLVED: To enable position identification of a mobile station even when the mobile station is located inside a building or a tunnel, or when the mobile station is not equipped with an SPS receiver, so that timing information cannot be collected from the SPS, for example.SOLUTION: A method includes: receiving transmission delay information from one or a plurality of non-serving cells in a cellular network; and determining a position of a mobile station at least partially on the basis of the transmission delay information received from the one or plurality of non-serving cells and positions of the one or plurality of non-serving cells. The method includes: transmitting a position identification pilot signal from the base station; transmitting the transmission delay information from the base station to the mobile station; and determining a position of the mobile station at least partially on the basis of the transmission delay information received from the base station, and at least partially on the basis of a known position of the base station.

    Abstract translation: 要解决的问题:即使当移动站位于建筑物或隧道内时,或者当移动站没有配备SPS接收机时,也能够使移动站的位置识别,从而不能收集定时信息 例如从SPS。 解决方案:一种方法包括:从蜂窝网络中的一个或多个非服务小区接收传输延迟信息; 以及至少部分地基于从所述一个或多个非服务小区接收的传输延迟信息和所述一个或多个非服务小区的位置来确定移动站的位置。 该方法包括:从基站发送位置识别导频信号; 从所述基站向所述移动台发送所述传输延迟信息; 以及至少部分地基于从所述基站接收的传输延迟信息,并且至少部分地基于所述基站的已知位置来确定所述移动台的位置。 版权所有(C)2013,JPO&INPIT

    Power control with link imbalance on downlink and uplink
    26.
    发明专利
    Power control with link imbalance on downlink and uplink 有权
    在LINKLINK和UPLINK上连接不间断的电源控制

    公开(公告)号:JP2013034215A

    公开(公告)日:2013-02-14

    申请号:JP2012198763

    申请日:2012-09-10

    Abstract: PROBLEM TO BE SOLVED: To control transmit power in the presence of link imbalance on a downlink and an uplink.SOLUTION: In UL power control, UE receives a first UL TPC command and a second UL TPC command from a DL serving cell 110 and a UL serving cell 112, respectively, and adjusts its transmit power on the basis of these UL TPC commands and in accordance with an OR-of-the-UPs rule. In DL power control, the UE generates a DL TPC command on the basis of received signal quality of both the DL serving cell 110 and the UL serving cell 112. Power control is performed independently for the DL serving cell and the UL serving cell. A joint DL TPC command is generated by combining the TPC commands on the basis of received signal quality of each of the DL serving cell and the UL serving cell in accordance with the OR-of-the-UPs.

    Abstract translation: 要解决的问题:在下行链路和上行链路上存在链路不平衡的情况下控制发射功率。 解决方案:在UL功率控制中,UE分别从DL服务小区110和UL服务小区112接收第一UL TPC命令和第二UL TPC命令,并且基于这些UL TPC调整其发射功率 命令并按照OR-of-UP-UP规则。 在DL功率控制中,UE基于DL服务小区110和UL服务小区112的接收信号质量生成DL TPC命令。对于DL服务小区和UL服务小区,独立地执行功率控制。 通过根据OR-UP的结果,基于DL服务小区和UL服务小区中的每一个的接收信号质量组合TPC命令来生成联合DL TPC命令。 版权所有(C)2013,JPO&INPIT

    Uplink pilot multiplexing in single user mimo and sdma for single carrier frequency division multiple access system
    27.
    发明专利
    Uplink pilot multiplexing in single user mimo and sdma for single carrier frequency division multiple access system 有权
    单载波多用户系统单用户MIMO和SDMA中的上行导频多路复用

    公开(公告)号:JP2013013101A

    公开(公告)日:2013-01-17

    申请号:JP2012173139

    申请日:2012-08-03

    CPC classification number: H04L5/0048 H04L5/0023

    Abstract: PROBLEM TO BE SOLVED: To provide a system and a method that facilitate an adaptive uplink pilot multiplexing scheme.SOLUTION: A frequency position and a pilot channel bandwidth can be adaptively varied in a block over time on the basis of uplink channel data such as the number of streams to be multiplexed. Thus, the provided adaptive uplink pilot multiplexing scheme adaptively determines a flexible uplink pilot allocation scheme while maintaining a single carrier waveform for improved transmit power efficiency of pilots and orthogonality of pilots within blocks for improved channel estimation and suppression of interference.

    Abstract translation: 解决的问题:提供一种促进自适应上行链路导频复用方案的系统和方法。 解决方案:频率位置和导频信道带宽可以基于上行链路信道数据(诸如要多路复用的流数)在块中随时间自适应地变化。 因此,提供的自适应上行链路导频复用方案自适应地确定灵活的上行链路导频分配方案,同时保持单个载波波形以改善导频的发射功率效率和块内的导频的正交性,以改善信道估计和抑制干扰。 版权所有(C)2013,JPO&INPIT

    Method and apparatus for cell search in orthogonal wireless communication system
    28.
    发明专利
    Method and apparatus for cell search in orthogonal wireless communication system 有权
    正交无线通信系统中小区搜索的方法和装置

    公开(公告)号:JP2012165401A

    公开(公告)日:2012-08-30

    申请号:JP2012055942

    申请日:2012-03-13

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that provide techniques for efficient cell search in a wireless communication system.SOLUTION: A frequency reuse pattern 510 is generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a Node B based on cell IDs or cell group IDs for the cells. The frequency shifts applied to the reference signals can then be utilized as a basis for multiplexing the reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to the reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.

    Abstract translation: 要解决的问题:提供在无线通信系统中提供用于有效小区搜索的技术的系统和方法。 解决方案:通过对基于小区的小区ID或小区组ID为从节点B提供覆盖的小区发射的参考信号应用频移来生成频率重用模式510。 然后,施加到参考信号的频移可以用作使用频分复用(FDM)或FDM和其他复用技术的组合来复用来自不同小区的参考信号的基础。 可以进一步对从各小区发送的参考信号进行其他调整,例如发送功率调整,以提高检测性能。 版权所有(C)2012,JPO&INPIT

    Method and apparatus for enhanced paging
    29.
    发明专利
    Method and apparatus for enhanced paging 有权
    用于增强寻呼的方法和装置

    公开(公告)号:JP2012054962A

    公开(公告)日:2012-03-15

    申请号:JP2011221081

    申请日:2011-10-05

    Abstract: PROBLEM TO BE SOLVED: To provide technology for efficient paging of user equipment (UE) in a wireless communication system.SOLUTION: A cell sends a paging indicator to UE, monitors for an acknowledgement from the UE, and sends a page message to the UE if an acknowledgement is received from the UE. The cell may receive channel quality information from the UE and may send the page message with link adaptation and/or HARQ to improve performance. In another aspect, a cell sends a paging indicator on a shared control channel to UE (612) and sends a page message on a shared data channel to the UE (614). The paging indicator and page message may be sent from multiple cells to the UE. Alternatively, the paging indicator may be sent from multiple cells to the UE, and the page message may be sent from a single cell to the UE.

    Abstract translation: 要解决的问题:提供用于无线通信系统中用户设备(UE)的有效寻呼的技术。 解决方案:小区向UE发送寻呼指示符,监视来自UE的确认,并且如果从UE接收到确认,则向UE发送寻呼消息。 小区可以从UE接收信道质量信息,并且可以发送具有链路适配和/或HARQ的寻呼消息以提高性能。 另一方面,小区在共享控制信道上向UE发送寻呼指示符(612),并将共享数据信道上的寻呼消息发送给UE(614)。 寻呼指示符和寻呼消息可以从多个小区发送到UE。 或者,寻呼指示符可以从多个小区发送到UE,并且寻呼消息可以从单个小区发送到UE。 版权所有(C)2012,JPO&INPIT

    Multi-carrier operation in data transmission system
    30.
    发明专利
    Multi-carrier operation in data transmission system 有权
    数据传输系统中的多载波操作

    公开(公告)号:JP2011205633A

    公开(公告)日:2011-10-13

    申请号:JP2011055858

    申请日:2011-03-14

    Abstract: PROBLEM TO BE SOLVED: To reduce hardware changes in legacy single-carrier systems by implementing a multi-carrier point-to-multi-point CDMA system.SOLUTION: The number of common downlink channels, such as timing/synchronization and paging channels is reduced by designating an anchor carrier for transmitting these channels. Procedures for adding carriers and carrier acquisition are simplified through common carrier timing, signaling by the network to the user equipment (UE) of timing offsets and scrambling code selection, and other measures. Channel reuse is employed to minimize changes in asymmetric systems with different numbers of uplink and downlink carriers. The Channel Quality Indicator (CQI) field is divided into multiple subfields to enable transmission of multiple CQIs and ACK/NACK indicators on one uplink carrier.

    Abstract translation: 要解决的问题:通过实施多载波点对多点CDMA系统来减少传统单载波系统中的硬件变化。解决方案:缩短公共下行链路信道的数量,如定时/同步和寻呼信道数量减少 通过指定用于发送这些信道的锚定载波。 通过公共载波定时,网络向用户设备(UE)发送定时偏移和扰码选择等措施,简化了载波和载波采集的处理步骤。 使用信道重用来最小化具有不同数量的上行链路和下行链路载波的不对称系统的变化。 信道质量指示符(CQI)字段被划分为多个子字段,以使得能够在一个上行链路载波上传输多个CQI和ACK / NACK指示符。

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