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公开(公告)号：US09571229B2
公开(公告)日：2017-02-14
申请号：US12901677
申请日：2010-10-11
申请人： Bengt Lindoff , Lars Lindbom , Stefan Parkvall
发明人： Bengt Lindoff , Lars Lindbom , Stefan Parkvall
CPC分类号： H04L1/0036 , H04W36/04 , H04W72/0406 , H04W72/082 , H04W84/045
摘要： Techniques are described for adapting receiver settings used by a mobile terminal operating in a heterogeneous network comprising macro cells and pico cells with overlapping coverage areas. A first set of subframes is allocated to the pico cells for downlink transmissions to a mobile terminal in a link imbalance zone. The mobile terminal acquires information about the subframe allocation and uses the subframe allocation information to select the signals used for adapting receiver settings used when operating in the link imbalance zone.
摘要翻译： 描述了用于适应在包括具有重叠覆盖区域的宏小区和微微小区的异构网络中操作的移动终端使用的接收机设置的技术。 第一组子帧被分配给微微小区用于下行链路传输到链路不平衡区中的移动终端。 移动终端获取关于子帧分配的信息，并且使用子帧分配信息来选择用于在链路不平衡区中操作时使用的接收机设置的适配信号。
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公开(公告)号：US09300395B2
公开(公告)日：2016-03-29
申请号：US13542359
申请日：2012-07-05
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送或接收的设备）的业务场景中改进软小区操作。 通过对在不同频带中工作的两个载波进行时分双工（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。
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公开(公告)号：US08767604B2
公开(公告)日：2014-07-01
申请号：US13258275
申请日：2009-05-29
CPC分类号： H04W52/0216 , H04L5/0007 , H04L27/2647 , H04W76/28 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/24
摘要： The present invention relates to methods and arrangements in a multi-carrier system. It also assumes independent DRX (Discontinuous reception) functionality on respective component carriers and the possibility for one carrier, e.g. the anchor carrier to initiate a change of DRX state for another component carrier. The basic concept of the present invention is to introduce a new “dormant” state in the DRX logic, whereby the dormant state can be used for non-anchor carrier components. The dormant DRX state implies that a carrier of a UE having this state is not required to monitor system signaling. In embodiments of the present invention this new state is introduced for a particular component carrier (e.g. non-anchor component carrier) for a UE operating in a multi-carrier system, and how to perform the transitions to and from the dormant DRX state implicitly, e.g. based on configured timer(s) for the component carrier or explicit signaling in a different (e.g. anchor) component carriers.
摘要翻译： 本发明涉及多载波系统中的方法和装置。 它还假定各个分量载波上的独立的DRX（不连续接收）功能和一个载波的可能性，例如， 锚定载波发起用于另一分量载波的DRX状态的改变。 本发明的基本概念是在DRX逻辑中引入新的“休眠”状态，由此休眠状态可以用于非锚定载波分量。 休眠DRX状态意味着不需要具有该状态的UE的载波来监视系统信令。 在本发明的实施例中，对于在多载波系统中操作的UE的特定分量载波（例如非锚分量载波）以及如何隐式地执行到休眠DRX状态的转换， 例如 基于用于分量载波的配置定时器或在不同（例如，锚））分量载波中的显式信令。
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公开(公告)号：US20130310059A1
公开(公告)日：2013-11-21
申请号：US13640337
申请日：2012-07-30
申请人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
发明人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
IPC分类号： H04W72/04
CPC分类号： H04W72/1231 , H04W52/143 , H04W52/244 , H04W72/0446 , Y02D70/00
摘要： In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.
摘要翻译： 在异构小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合来传送移动终端的用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的数据由微微节点提供，单独或与宏节点组合。
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公开(公告)号：US08526377B2
公开(公告)日：2013-09-03
申请号：US12934207
申请日：2008-09-03
申请人： Bengt Lindoff , Stefan Parkvall , Erik Dahlman
发明人： Bengt Lindoff , Stefan Parkvall , Erik Dahlman
CPC分类号： H04W52/0216 , H04W76/28 , Y02D70/1262 , Y02D70/1264 , Y02D70/24 , Y02D70/25
摘要： Mechanisms to provide independent DRX (discontinuous reception) functionalities for individual carriers of a multi-carrier wireless network (200) are described. DRX is a higher layer functionality indicating which TTIs (transmission time intervals) a user equipment (220) needs to read for control signals. Operating in the DRX cycle allows the user equipment (220) to reduce battery consumption. A connection is established between a base station (210) and the user equipment (220) over a plurality of carriers, where for each carrier, an independent DRX cycle is established. The plurality of carriers include anchor carriers which can carry commands from the base station (210). The anchor carriers have shorter DRX cycles than the non-anchor carriers. When a large amount of download data is to be transferred, the DRX cycles of multiple carriers are overridden and used for transfer to achieve fast download rates. The override commands are sent from the base station (210) to the user equipment (220) prior to the transfer.
摘要翻译： 描述了为多载波无线网络（200）的各个载波提供独立的DRX（间歇接收）功能的机制。 DRX是指示用户设备（220）为控制信号需要读取哪些TTI（传输时间间隔）的较高层功能。 在DRX周期中操作允许用户设备（220）减少电池消耗。 在多个载波上在基站（210）和用户设备（220）之间建立连接，其中对于每个载波，建立独立的DRX周期。 多个载波包括可承载来自基站（210）的命令的锚载波。 锚载波具有比非锚载波更短的DRX周期。 当要传送大量的下载数据时，多个载波的DRX周期被覆盖并用于传输以实现快速下载速率。 覆盖命令在传输之前从基站（210）发送到用户设备（220）。
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公开(公告)号：US20130012202A1
公开(公告)日：2013-01-10
申请号：US13520297
申请日：2010-02-24
申请人： Bengt Lindoff , Stefan Parkvall , Pal Frenger
发明人： Bengt Lindoff , Stefan Parkvall , Pal Frenger
摘要： A base station transmits signals on a frequency (f1) in an active transmission interval (TI) having a starting time and being part of a transmission cycle (TC) including other active transmission intervals for other frequencies (f0, f1, f2, f3) appearing in a predetermined discontinuous transmission scheme that specifies the relationship (Δ1, Az, A3) between the starting times of the active transmission intervals of the frequencies of the set. The mobile station scans the set of frequencies during a scanning cycle (SC) corresponding to the transmission cycle (TC) and determines the frequencies at which the base stations transmit. The start of each scanning is made at a point in time that is specified for the corresponding frequency by the discontinuous transmission scheme and the scanning of one frequency involves ending scanning of this frequency at the end of a time range (TR) of pre-determined length if no signal is detected within this time range.
摘要翻译： 基站在具有起始时间的有效传输间隔（TI）中的频率（f1）上发送信号，并且是包括用于其他频率（f0，f1，f2，f3）的其他有效传输间隔的传输周期（TC）的一部分的信号， 出现在预定的不连续传输方案中，该不连续传输方案规定了该集合的频率的有效传输间隔的开始时间之间的关系（＆Dgr; 1，Az，A3）。 移动台在对应于传输周期（TC）的扫描周期（SC）期间扫描频率集合，并确定基站发射的频率。 每次扫描的开始是在由不连续传输方案为相应频率指定的时间点进行的，并且一个频率的扫描涉及在预定的时间范围（TR）的结束时结束该频率的扫描 在该时间范围内没有检测到信号的长度。
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47.发明申请公开(公告)号：US20110305220A1
公开(公告)日：2011-12-15
申请号：US13018779
申请日：2011-02-01
摘要： A method for managing radio access comprises sending of a radio access technology (RAT) resource aggregation request from a first radio access network (RAN) to a second RAN concerning communication with a user equipment connected to a source RAN, and returning a response to the first RAN. The source RAN is the first or second RAN. The first and second RANs use different radio access technologies. Radio resources of a base station in a target RAN, the RAN to which the user equipment is not connected, are reserved. A report of the reserved radio resources is sent to the source RAN. A RAT resource aggregation command is transmitted to the user equipment. The RAT resource aggregation command comprises that a RAT resource aggregation shall be used and the reserved radio resources. The base stations have at least partly overlapping coverage areas.
摘要翻译： 一种用于管理无线电接入的方法，包括从第一无线电接入网络（RAN）向第二RAN发送无线电接入技术（RAT）资源聚合请求，其涉及与连接到源RAN的用户设备的通信，并且向 第一RAN。 源RAN是第一或第二RAN。 第一和第二RAN使用不同的无线接入技术。 目标RAN中的基站的无线资源，用户设备未连接的RAN被保留。 保留的无线电资源的报告被发送到源RAN。 RAT资源聚合命令被发送到用户设备。 RAT资源聚合命令包括使用RAT资源聚合和保留的无线资源。 基站至少部分重叠覆盖区域。
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公开(公告)号：US20110142009A1
公开(公告)日：2011-06-16
申请号：US12934427
申请日：2008-09-03
申请人： Bengt Lindoff , Stefan Parkvall , Matthias Kamuf
发明人： Bengt Lindoff , Stefan Parkvall , Matthias Kamuf
CPC分类号： H04W72/0453 , H04L5/0053 , H04L5/006 , H04L5/0091 , H04W72/085 , Y02D70/1222 , Y02D70/1262 , Y02D70/164 , Y02D70/24
摘要： Mechanism to receive control signals transmitted from a base station (210, 510, 910) to the user equipment (220, 520, 920) in a manner that minimizes power consumption on the user equipment (220, 520, 920) while still maintaining some acceptable level of performance is described. The user equipment (220, 520, 920) periodically measures the signal quality of component carriers used by the base station (210, 510, 910) and requests control signaling (anchor) carrier reselection. Either a single component carrier can be chosen if the single carrier has sufficient quality or multiple component carriers can be selected when the quality of the single quality is low. The anchor carrier reselection may also be triggered to manage the system as a whole. For fast moving user equipments (220, 520, 920), anchor carrier hopping pattern can be provided to increase robustness and reduce reselection signaling overhead.
摘要翻译： 用于接收从基站（210,510,910）发送到用户设备（220,520,920）的控制信号的机制，其方式是使用户设备（220,520,920）上的功率消耗最小化，同时仍保持一些 描述可接受的性能水平。 用户设备（220,520,920）周期性地测量由基站（210,510,910）使用的分量载波的信号质量，并请求控制信令（锚）载波重选。 如果单载波具有足够的质量，则可以选择单个分量载波，或者当单个质量的质量低时，可以选择多个分量载波。 也可以触发锚载体重新选择来整体管理系统。 对于快速移动的用户设备（220,520,920），可以提供锚定载波跳频模式以增加鲁棒性并减少重选信令开销。
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公开(公告)号：US07656850B2
公开(公告)日：2010-02-02
申请号：US11531213
申请日：2006-09-12
申请人： Bengt Lindoff , Robert Baldemair
发明人： Bengt Lindoff , Robert Baldemair
CPC分类号： H04J11/0069 , H04L27/2607 , H04W56/0035
摘要： The method and system of a first aspect of the present invention is adapted to perform cell search on all possible bandwidths. In order to reduce the search time, the order in which the allowable BW is used in the search is based on information from history lists. These history lists include the BWs and frequency bands used. A second aspect of the present invention is a method and an OFDM cellular telecommunications system adapted to perform cell search and synchronization wherein the system has a certain number of bandwidth possibilities. The method comprises the steps of identifying at least one critical system parameter that reduces the set of possible synchronization signals; and performing cell search and synchronization over the limited number of different synchronization signals.
摘要翻译： 本发明的第一方面的方法和系统适于在所有可能的带宽上执行小区搜索。 为了减少搜索时间，搜索中使用允许BW的顺序是基于来自历史列表的信息。 这些历史列表包括使用的BW和频带。 本发明的第二方面是一种适于执行小区搜索和同步的OFDM蜂窝电信系统，其中系统具有一定数量的带宽可能性。 该方法包括以下步骤：识别减少可能的同步信号集合的至少一个关键系统参数; 并且在有限数量的不同同步信号上执行小区搜索和同步。
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50.发明申请公开(公告)号：US20090323629A1
公开(公告)日：2009-12-31
申请号：US12522166
申请日：2007-12-07
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
IPC分类号： H04W72/04
CPC分类号： H04J11/0073 , H04B7/2681 , H04J11/0076 , H04J13/0077 , H04J13/107 , H04J13/16 , H04J2011/0009 , H04L27/2613 , H04W56/00 , H04W56/0085
摘要： Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S1, is transmitted that comprises a pair of sequences arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2, is transmitted that comprises a pair of sequences arranged in a second ordering. The selected pair of sequences is uniquely identified with the particular cell group, and the first ordering of the sequences is used only for transmission in the known one of the time slots, and the second ordering of the sequences is used only for transmission in said another known one of the time slots.
摘要翻译： 在具有物理层中的无线电帧的蜂窝通信系统中发送的信号中指示多个小区组中的特定一个小区的定时参数和身份，该无线帧包括多个时隙。 在已知的一个时隙中，发送一个同步信号S1，该同步信号包括按照第一次排序排列的一对序列。 在另一个已知的一个时隙中，发送包括以第二次排序排列的一对序列的同步信号S2。 所选择的一对序列被唯一地标识特定的小区组，并且该序列的第一次排序仅用于已知的一个时隙中的传输，并且该序列的第二次排序仅用于在所述另一个时隙中传输 已知的一个时隙。
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