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    METHODS AND APPARATUS FOR IMPROVED RECEIVER PERFORMANCE IN HALF-DUPLEX WIRELESS TERMINALS
    63.
    发明公开
    METHODS AND APPARATUS FOR IMPROVED RECEIVER PERFORMANCE IN HALF-DUPLEX WIRELESS TERMINALS 有权
    方法和设备在无线半的半双工终端接收信号

    公开(公告)号：EP2235868A2

    公开(公告)日：2010-10-06

    申请号：EP09702343.6

    申请日：2009-01-13

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： LINDOFF, Bengt ,  MATTISSON, Sven

    IPC分类号： H04L5/16 ,  H04B1/44

    CPC分类号： H04L5/16 ,  H04B1/44

    摘要： A half-duplex mobile terminal having first and second receiver branches connected, during a receive mode, to respective antennas, is disclosed. One of the antennas is selectively connected to the first receiver branch or to a transmitter circuit. The first antenna is connected to the first receiver branch during a first interval, during which interval data is detected using outputs from both the first and second receiver branches. The first antenna is disconnected from the first receiver branch at the end of the first interval, and, during a second interval immediately following the first interval, data is detected using the output of the second receiver branch. A portion of the incoming transmission that arrives during the transition between the receive mode and transmit mode in a half-duplex transceiver is thus received and detected, improving performance of the half-duplex transceiver.

    SYNCHRONISATION AND DETECTION OF MODULATION TYPE
    65.
    发明公开
    SYNCHRONISATION AND DETECTION OF MODULATION TYPE 有权
    同步和调制的检测

    公开(公告)号：EP1197050A1

    公开(公告)日：2002-04-17

    申请号：EP00943913.4

    申请日：2000-06-27

    申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ)

    发明人： KHULLAR, Anders ,  STENSTRÖM, Niklas ,  LINDOFF, Bengt

    IPC分类号： H04L27/00

    CPC分类号： H04L27/2017 ,  H04L25/0228 ,  H04L27/0012 ,  H04L27/2067 ,  H04L2025/03401

    摘要： In a communication system, including a transmitter and a receiver, the receiver is synchronized with the transmitter, and a modulation type in a signal transmitted by the transmitter and received by the receiver is detected. A first portion of the received signal is correlated with one or more signals, representing modulation types used by the communication system to detect the type of modulation being used. Synchronization is established between the transmitter and the receiver. The first portion may be correlated with each of one or more different signals, representing various modulation types used in the communication system to detect the type of modulation used. Alternately, the first portion of the received signal may be derotated by different amounts, to produce a plurality of derotated signals that are correlated with the signal representing modulation used by the communication system, in order to detect the type of modulation used. If the correlation does not result in a determination of the modulation type, either a predetermined modulation type is selected or the decision of modulations type is made at a later stage, based, e.g., on a comparison of signal qualities or equalization results.

    WAKE-UP FOR MEASUREMENTS DURING DRX CYCLES
    67.
    发明公开
    WAKE-UP FOR MEASUREMENTS DURING DRX CYCLES 有权
    AUFWECKFUNKTIONFÜRMESSUNGENWÄHRENDDRX-ZYKLEN

    公开(公告)号：EP2912876A1

    公开(公告)日：2015-09-02

    申请号：EP13851893.1

    申请日：2013-10-23

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： TIRRONEN, Tuomas ,  LARMO, Anna ,  LINDOFF, Bengt ,  RUNE, Johan ,  WALLÉN, Anders

    IPC分类号： H04W24/10

    CPC分类号： H04W52/0209 ,  H04W36/0088 ,  H04W52/0216 ,  H04W52/0229 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

    摘要： Techniques for performing radio link measurements while a wireless device is operating in an extended DRX mode are disclosed. An example method, implemented by a wireless device in a wireless communication network, comprises waking up (510) in advance of a scheduled DRX on-time, and outside of any other scheduled DRX on-time, for at least one measurement interval, performing (520) radio link measurements during the at least one measurement interval, and determining (530) whether the wireless device is in an in-synch or out-of-synch status. In some embodiments, the in-synch or out-of-synch status and/or a radio-link failure are selectively reported to upper layers of the mobile terminal's protocol stack, e.g., to an RRC layer.

    摘要翻译： 公开了在无线设备以扩展DRX模式操作时执行无线电链路测量的技术。 由无线通信网络中的无线设备实现的示例性方法包括在调度的DRX开启之前提前（510），并且在任何其它调度的DRX接通时间外超过至少一个测量间隔，执行 （520）在所述至少一个测量间隔期间的无线电链路测量，以及确定（530）所述无线设备是否处于同步或不同步状态。 在一些实施例中，同步或失步同步状态和/或无线电链路故障被选择性地报告给移动终端协议栈的较高层，例如到RRC层。

    METHOD AND APPARATUS FOR SOFT-CELL OPERATION INVOLVING LEGACY DEVICES
    68.
    发明公开
    METHOD AND APPARATUS FOR SOFT-CELL OPERATION INVOLVING LEGACY DEVICES 审中-公开
    VERFAHREN UND VORRICHTUNGFÜRSOFT-CELL-BETRIEB MIT ALTVORRICHTUNGEN

    公开(公告)号：EP2870707A1

    公开(公告)日：2015-05-13

    申请号：EP13728385.9

    申请日：2013-06-12

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： TILLMAN, Fredrik ,  LINDOFF, Bengt ,  BERGLJUNG, Christian ,  PARKVALL, Stefan

    IPC分类号： H04B7/26 ,  H04L5/00

    CPC分类号： H04B7/2643 ,  H04L5/001 ,  H04L5/0094 ,  H04L5/1469 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/449

    摘要： The teachings herein provide a number of advantages, including but not limited to improving soft-cell operation in service scenarios involving legacy devices that do not directly support carrier aggregation—i.e., devices that can transmit or receive in only one frequency band at a time. By imposing a Time Division Duplex (TDD) arrangement across two carriers operating in different frequency bands, scheduled transmissions involving the legacy device are mutually exclusive as between the two carriers. Advantageously, the TDD arrangement is imposed across first and second carriers used in the macro- and low-power layers of a soft-cell, thus imposing TDD-based coordination of scheduled transmissions between those carriers irrespective of whether the individual carriers are configured as Frequency Division Duplex (FDD) or TDD carriers, or a mix thereof.

    摘要翻译： 本文的教导提供了许多优点，包括但不限于在不直接支持载波聚合的传统设备（即，一次只能在一个频带中发射或接收的设备）的业务场景中改进软小区操作。 通过在两个运营在不同频带的载波上实施时分双工（TDD）布置，涉及传统设备的调度传输在两个载波之间是相互排斥的。 有利地，TDD布置被施加在在软小区的宏功率层和低功率层中使用的第一和第二载波上，从而在这些载波之间强加基于TDD的协调调度的传输，而不管各个载波是否被配置为频率 分割双工（FDD）或TDD载波，或其混合。