公开(公告)号：US07675846B2

公开(公告)日：2010-03-09

申请号：US11566508

申请日：2006-12-04

申请人： Bengt Lindoff ,  Anders Wallén

发明人： Bengt Lindoff ,  Anders Wallén

IPC分类号： H04J11/00

CPC分类号： H04L27/261 ,  H04J11/0093 ,  H04L27/2656 ,  H04L27/2684 ,  H04W24/00 ,  H04W36/30 ,  H04W48/08 ,  H04W56/00 ,  H04W88/02

摘要： A method and apparatus that utilizes the synchronization channel (SCH) by the user equipment (UE) to obtain time synchronization information and to perform cell search. In order to perform the SCH detection, only a correlation between the known SCH signal and the received sequence is needed, hence the FFT is not involved in the synchronization step. Typically the SCH and pilot symbols are transmitted with a constant power which is the same for all base stations. Hence, based on the serving cell (SC) SCH and pilot symbols, the power relation between these signals is estimated and the ratio applied when performing time synchronization to other cells (i.e. correlation the received sequence with the SCH from that particular NC) to estimate the pilot signal strength for the NB cell.

摘要翻译： 利用用户设备（UE）的同步信道（SCH）获取时间同步信息并执行小区搜索的方法和装置。 为了执行SCH检测，仅需要已知SCH信号和接收到的序列之间的相关性，因此在同步步骤中不涉及FFT。 通常，SCH和导频符号以对于所有基站相同的恒定功率发送。 因此，基于服务小区（SC）SCH和导频符号，估计这些信号之间的功率关系，并且当与其他小区进行时间同步时（即，将来自该特定NC的SCH的接收序列相关）估计 NB电池的导频信号强度。

公开(公告)号：US08909267B2

公开(公告)日：2014-12-09

申请号：US13451088

申请日：2012-04-19

申请人： Leif Wilhelmsson ,  Bengt Lindoff ,  Thomas Olsson ,  Anders Wallén

发明人： Leif Wilhelmsson ,  Bengt Lindoff ,  Thomas Olsson ,  Anders Wallén

IPC分类号： H04B7/00

CPC分类号： H04W52/0245 ,  Y02D70/1262 ,  Y02D70/21

摘要： Embodiments herein include a method implemented by a wireless device for detecting requests to connect to a wireless communications network. The method includes determining a receiver sensitivity that is sufficient, given channel conditions at the device, for the device to detect connection requests. The method then entails dynamically selecting, from among different receiver sensitivity configurations of the device, a configuration that has a receiver sensitivity at least as good as the determined sensitivity and that has less energy consumption than at least one other configuration. Finally, the method includes using the selected configuration for request detection. A wireless device herein thereby reduces its energy consumption when it is disconnected from the network, but intelligently limits the extent of that energy consumption reduction in order to maintain an ability to detect network connection requests.

摘要翻译： 这里的实施例包括由无线设备实现的用于检测连接到无线通信网络的请求的方法。 该方法包括在给定设备的信道条件下，确定接收机灵敏度足以使设备检测到连接请求。 该方法然后需要从设备的不同接收机灵敏度配置中动态地选择具有至少与确定的灵敏度一样好的接收机灵敏度并且具有比至少一个其它配置更少的能量消耗的配置。 最后，该方法包括使用所选配置进行请求检测。 因此，这里的无线设备在其与网络断开连接时降低了其能量消耗，但是智能地限制了该能量消耗降低的范围，以便维持检测网络连接请求的能力。

公开(公告)号：US08688165B2

公开(公告)日：2014-04-01

申请号：US13376896

申请日：2010-06-10

申请人： Anders Wallén ,  Bengt Lindoff ,  Christian Bergljung

发明人： Anders Wallén ,  Bengt Lindoff ,  Christian Bergljung

IPC分类号： H04W52/04

CPC分类号： H04W52/16 ,  H04W52/54 ,  H04W52/545

摘要： A mobile terminal transmits one or more first communication channels in a first frequency region and one or more second communication channels in a second frequency region. With the channels experiencing different fading conditions, the terminal receives separate transmit power control (TPC) commands. Instead of simply adjusting the transmit power of the channels as commanded, the terminal computes a power offset indicative of the difference between the commanded power of one or more of the first channels and the commanded power of one or more of the second channels. The terminal then selectively performs transmit power control of the first and second channels on either an independent basis, according to the respective TPC commands, or a joint basis, depending on whether the computed power offset falls outside of a pre-determined range of values. In doing so, the terminal allows independent control of channels, while also mitigating self-interference and/or spectral emissions.

摘要翻译： 移动终端在第二频率区域中的第一频率区域和一个或多个第二通信信道中发送一个或多个第一通信信道。 通道经历不同的衰落条件时，终端接收单独的发射功率控制（TPC）命令。 代替简单地按照命令调整信道的发射功率，终端计算表示一个或多个第一信道的命令功率与一个或多个第二信道的命令功率之间的差的功率偏移。 然后，根据所计算的功率偏移是否超出预定值的范围，终端根据相应的TPC命令或联合基础，独立地选择性地执行第一和第二信道的发射功率控制。 在这样做时，终端允许信道的独立控制，同时也减轻自身干扰和/或频谱发射。

公开(公告)号：US08498640B2

公开(公告)日：2013-07-30

申请号：US13076599

申请日：2011-03-31

申请人： Andres Reial ,  Niklas Andgart ,  Bengt Lindoff ,  Lennart Moren ,  Anders Wallén

发明人： Andres Reial ,  Niklas Andgart ,  Bengt Lindoff ,  Lennart Moren ,  Anders Wallén

IPC分类号： H04W4/00

CPC分类号： H04W48/16 ,  H04W88/06

摘要： Methods and apparatus are provided for detecting the radio access technology (RAT) employed in a received signal prior to performing a cell search. The RAT detection method may be used to identify the most likely RAT employed for each candidate frequency identified in an initial frequency scan. Once the most likely RAT is identified, the mobile communication device can then attempt synchronization according to the procedures for the most likely RAT. Identifying the RAT prior to the cell search reduces the number of synchronization attempts and, consequently, the time needed to perform the cell search.

摘要翻译： 提供了用于在执行小区搜索之前检测在接收信号中采用的无线电接入技术（RAT）的方法和装置。 RAT检测方法可以用于识别在初始频率扫描中识别的每个候选频率所采用的最可能的RAT。 一旦识别出最可能的RAT，则移动通信设备然后可以根据最可能的RAT的过程尝试同步。 在小区搜索之前识别RAT减少了同步尝试的次数，因此减少了进行小区搜索所需的时间。

公开(公告)号：US08346315B2

公开(公告)日：2013-01-01

申请号：US11852726

申请日：2007-09-10

申请人： Bengt Lindoff ,  Jacobus Cornelis Haartsen ,  Anders Wallén

发明人： Bengt Lindoff ,  Jacobus Cornelis Haartsen ,  Anders Wallén

IPC分类号： H04M1/00

CPC分类号： H04W48/18 ,  H04W28/18 ,  H04W48/16 ,  H04W52/0229 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

摘要： Methods and apparatus are disclosed for operating a multi-mode wireless communications device to select a radio access technology (RAT) requiring the lowest energy consumption by the device for a desired operating mode. An exemplary method comprises scanning a plurality of frequency bands to determine a set of available radio access technologies that support the desired operating mode, and evaluating, for each available RAT, RAT-specific system parameters and RAT-specific operating conditions. Based on the evaluation, the RAT requiring the lowest energy consumption by the wireless device for the desired operating mode is selected.

摘要翻译： 公开了用于操作多模式无线通信设备以选择要求所需操作模式的设备所需的最低能量消耗的无线电接入技术（RAT）的方法和装置。 一种示例性方法包括扫描多个频带以确定支持期望操作模式的一组可用的无线电接入技术，以及针对每个可用的RAT评估特定于RAT的系统参数和特定于RAT的操作条件。 基于该评估，选择由无线设备为期望的操作模式需要最低能耗的RAT。

公开(公告)号：US20120327894A1

公开(公告)日：2012-12-27

申请号：US13398786

申请日：2012-02-16

申请人： Joakim Axmon ,  Erik Eriksson ,  Bengt Lindoff ,  Anders Wallén ,  Leif Wilhelmsson

发明人： Joakim Axmon ,  Erik Eriksson ,  Bengt Lindoff ,  Anders Wallén ,  Leif Wilhelmsson

IPC分类号： H04W72/04 ,  H04W74/08

CPC分类号： H04W72/0493 ,  H04L5/00 ,  H04L5/0053 ,  H04W48/12 ,  H04W48/16

摘要： A network node that serves a host cell in a cellular communication system transmits, at (a) first time interval(s), first control channel information on a control channel that extends over a first bandwidth of a radiofrequency spectrum. The first control channel communicates information necessary to enable a first type of communication device to receive data from the host cell. The first type of communication device can receive first bandwidth-wide signals. At (a) second time interval(s), second control channel information is transmitted on a second control channel of a first M-cell. The second control channel occupies a second bandwidth that is smaller than the first bandwidth. The second time interval(s) do(es) not coincide with any of the first time interval(s). A second type of communication device having reduced receive bandwidth capabilities compared to those of the first type of communication device is thereby made capable of being served by the node.

摘要翻译： 服务于蜂窝通信系统中的主机小区的网络节点在（a）第一时间间隔处，在通过射频频谱的第一带宽延伸的控制信道上发送第一控制信道信息。 第一控制信道传送使得第一类型的通信设备能够从主机小区接收数据所需的信息。 第一类通信设备可以接收第一带宽信号。 在（a）第二时间间隔，在第一M单元的第二控制信道上发送第二控制信道信息。 第二控制信道占用小于第一带宽的第二带宽。 第二时间间隔（s）与第一时间间隔（s）中的任一个不一致。 与第一类型的通信设备相比，具有降低的接收带宽能力的第二类型的通信设备由此能够被节点服务。

公开(公告)号：US20110243111A1

公开(公告)日：2011-10-06

申请号：US12869693

申请日：2010-08-26

申请人： Niklas Andgart ,  Christian Bergljung ,  Matthias Kamuf ,  Bengt Lindoff ,  Anders Wallén

发明人： Niklas Andgart ,  Christian Bergljung ,  Matthias Kamuf ,  Bengt Lindoff ,  Anders Wallén

IPC分类号： H04W4/00

CPC分类号： H04W56/0045 ,  H04L5/001 ,  H04W72/12

摘要： A terminal with transmitter and receiver operates in a multi-carrier communication system and receives at least two downlink carriers. One or more timing advance commands are received, each associated with a group of one or more uplink carriers, each group being associated with one or more of the received downlink carriers. For each downlink carrier associated with one of the groups of uplink carriers, one is selected as a reference downlink carrier; the reference downlink carrier timing is ascertained; and a transmission time period is ascertained based on the timing of the downlink reference carrier and an offset specified by the timing advance command associated with the group of uplink carriers. The transmission time period comprises a start time and a stop time. Transmission is initiated at an earliest transmission start time of the ascertained transmission time periods and is ceased at a latest ascertained stop time.

摘要翻译： 具有发射机和接收机的终端在多载波通信系统中操作并且接收至少两个下行链路载波。 接收一个或多个定时提前命令，每个定时提前命令与一个或多个上行链路载波的组相关联，每个组与所接收的下行链路载波中的一个或多个相关联。 对于与上行链路载波组中的一个相关联的每个下行链路载波，选择一个作为参考下行链路载波; 确定参考下行链路载波定时; 并且基于下行链路参考载波的定时和由与上行链路载波组相关联的定时提前命令指定的偏移来确定传输时间段。 传输时间段包括开始时间和停止时间。 传输在所确定的传输时间段的最早的传输开始时间开始，并且在最后确定的停止时间停止。

公开(公告)号：US09907005B2

公开(公告)日：2018-02-27

申请号：US14125402

申请日：2011-06-15

申请人： Bengt Lindoff ,  Lennart Morén ,  Anders Wallén

发明人： Bengt Lindoff ,  Lennart Morén ,  Anders Wallén

IPC分类号： H04W36/00 ,  H04W36/24 ,  H04W36/30

CPC分类号： H04W36/24 ,  H04W36/0083 ,  H04W36/30

摘要： To communicate wireless handover events, a communications device associated with a serving cell of a cellular network determines, based on at least one or more first measurement results indicative of cell quality parameters of a plurality of cells of the cellular network, a first handover event associated with a first one of the cells, initiates communication of a first handover message indicative of the determined first handover event to a network entity of the cellular network, and, based on at least one or more second measurement results, determines a plurality of further handover events associated with respective ones of the cells, resulting in a plurality of pending handover events waiting to be communicated to a network entity of the cellular network. The communications device also determines a priority order for at least a subset of the pending handover events. The subset includes handover events associated with different cells.

公开(公告)号：US20120327895A1

公开(公告)日：2012-12-27

申请号：US13398787

申请日：2012-02-16

申请人： Anders Wallén ,  Bengt Lindoff ,  Erik Eriksson ,  Joakim Axmon ,  Leif Wilhelmsson

发明人： Anders Wallén ,  Bengt Lindoff ,  Erik Eriksson ,  Joakim Axmon ,  Leif Wilhelmsson

IPC分类号： H04W72/04

CPC分类号： H04W48/12 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094

摘要： A communication system node transmits first control channel information on a control channel that extends over a first bandwidth of a radiofrequency resource. The first control channel information is necessary to enable a first type of communication device, capable of receiving a signal having the first bandwidth, to establish a connection with a host cell. A MIB, occupying a second bandwidth-size part of the first bandwidth, is transmitted. The second bandwidth is smaller than the first bandwidth and is receivable by a second type of communication device having reduced receive bandwidth capabilities. The MIB has a first part comprising first part information necessary to enable the first type of communication device to establish the connection with the host cell, and a second part comprising second part information directly or indirectly enabling the second type of communication device to obtain parameters that enable connection establishment with the host cell.

摘要翻译： 通信系统节点在通过射频资源的第一带宽上延伸的控制信道上发送第一控制信道信息。 第一控制信道信息对于能够接收具有第一带宽的信号的第一类型的通信设备来建立与主机小区的连接是必需的。 占用第一带宽的第二带宽大小部分的MIB被发送。 第二带宽小于第一带宽，并且可以由具有降低的接收带宽能力的第二类型的通信设备接收。 MIB具有第一部分，其包括使得第一类型的通信设备能够建立与主机小区的连接所必需的第一部分信息，以及包括第二部分信息的第二部分直接或间接地使第二类型的通信设备获得参数， 启用与主机单元的连接建立。

公开(公告)号：US08055291B2

公开(公告)日：2011-11-08

申请号：US11854135

申请日：2007-09-12

申请人： Jacobus Cornelis Haartsen ,  Bengt Lindoff ,  Anders Wallén

发明人： Jacobus Cornelis Haartsen ,  Bengt Lindoff ,  Anders Wallén

IPC分类号： H04B7/00

CPC分类号： H04W72/08 ,  H04W52/0232 ,  H04W52/0245 ,  Y02D70/12 ,  Y02D70/22

摘要： Methods and apparatus are disclosed for reducing mobile terminal energy consumption during data transmissions by allocating link resources and adapting link parameters in an energy-aware manner, based on throughput requirements and prevailing channel conditions. A combination of transmit parameters that includes a transmit channelization scheme and is designed to minimize the total energy consumed during data transmission is selected based on a throughput requirement and one or more channel conditions associated with the data transmission. The channelization scheme includes a number of subchannels to be used and subchannel configuration parameters for each subchannel, such as spreading codes, spreading factors, and subchannel power levels. The combination of transmit parameters may also include a modulation format, coding scheme, and transmit power setting, as well as parameters relating to multiple-antenna transmit schemes.

摘要翻译： 公开了用于通过基于吞吐量要求和主要信道条件以能量感知方式分配链路资源和适配链路参数来减少数据传输期间的移动终端能量消耗的方法和装置。 基于吞吐量要求和与数据传输相关联的一个或多个信道条件来选择包括发射信道化方案并被设计为使数据传输期间消耗的总能量最小化的发射参数的组合。 信道化方案包括要使用的多个子信道和每个子信道的子信道配置参数，例如扩展码，扩频因子和子信道功率电平。 发射参数的组合还可以包括调制格式，编码方案和发射功率设置以及与多天线发射方案有关的参数。