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    • 2. 发明授权
    • Power-aware link adaptation in a wideband CDMA system
    • 宽带CDMA系统中的功率感知链路自适应
    • US08055291B2
    • 2011-11-08
    • US11854135
    • 2007-09-12
    • Jacobus Cornelis HaartsenBengt LindoffAnders Wallén
    • Jacobus Cornelis HaartsenBengt LindoffAnders Wallén
    • H04B7/00
    • H04W72/08H04W52/0232H04W52/0245Y02D70/12Y02D70/22
    • 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.
    • 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。
    • 3. 发明授权
    • Power-aware link adaptation with variable bandwidth allocation
    • 具有可变带宽分配的功率感知链路自适应
    • US08103302B2
    • 2012-01-24
    • US11853068
    • 2007-09-11
    • Jacobus Cornelis HaartsenBengt LindoffAnders Wallén
    • Jacobus Cornelis HaartsenBengt LindoffAnders Wallén
    • H04B7/00
    • H04W72/085H04W52/0232H04W52/0245H04W72/0406H04W72/087Y02D70/1262Y02D70/22
    • Methods and apparatus are disclosed for reducing mobile terminal energy consumption during data transmissions by allocating resources and adapting link parameters in an energy-aware manner, based on throughput requirements and prevailing signal propagation conditions. A combination of transmit parameters designed to minimize the total energy consumed during data transmission is selected based on a throughput requirement and a path loss associated with a data transmission by a mobile terminal. The combination of transmit parameters includes a bandwidth allocation and may also include a modulation format, coding scheme, and transmit power setting, as well as parameters relating to multiple-antenna transmit schemes. The bandwidth allocation may correspond to a number of sub-carriers of an OFDM signal, or may correspond to a number of resource blocks in an SC-FDMA signal.
    • 公开了用于通过基于吞吐量要求和主要信号传播条件以能量感知方式分配资源和调整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移动终端的数据传输相关联的路径损耗来选择被设计为最小化在数据传输期间消耗的总能量的发射参数的组合。 发射参数的组合包括带宽分配,并且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。 带宽分配可以对应于OFDM信号的子载波的数量,或者可以对应于SC-FDMA信号中的资源块的数量。
    • 5. 发明授权
    • Energy-efficient detection of network connection requests
    • 节能检测网络连接请求
    • US08909267B2
    • 2014-12-09
    • US13451088
    • 2012-04-19
    • Leif WilhelmssonBengt LindoffThomas OlssonAnders Wallén
    • Leif WilhelmssonBengt LindoffThomas OlssonAnders Wallén
    • H04B7/00
    • H04W52/0245Y02D70/1262Y02D70/21
    • 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.
    • 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。
    • 6. 发明授权
    • Transmit power control of channels transmitted in different frequency regions
    • 在不同频率区域发射的信道发射功率控制
    • US08688165B2
    • 2014-04-01
    • US13376896
    • 2010-06-10
    • Anders WallénBengt LindoffChristian Bergljung
    • Anders WallénBengt LindoffChristian Bergljung
    • H04W52/04
    • H04W52/16H04W52/54H04W52/545
    • 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.
    • 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。
    • 8. 发明申请
    • Cellular Communication System Support for Limited Bandwidth Communication Devices
    • 蜂窝通信系统支持有限带宽通信设备
    • US20120327894A1
    • 2012-12-27
    • US13398786
    • 2012-02-16
    • Joakim AxmonErik ErikssonBengt LindoffAnders WallénLeif Wilhelmsson
    • Joakim AxmonErik ErikssonBengt LindoffAnders WallénLeif Wilhelmsson
    • H04W72/04H04W74/08
    • H04W72/0493H04L5/00H04L5/0053H04W48/12H04W48/16
    • 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.
    • 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。
    • 9. 发明申请
    • Timing of Uplink Transmissions in a Multi-Carrier Communication System
    • 多载波通信系统上行链路传输的时序
    • US20110243111A1
    • 2011-10-06
    • US12869693
    • 2010-08-26
    • Niklas AndgartChristian BergljungMatthias KamufBengt LindoffAnders Wallén
    • Niklas AndgartChristian BergljungMatthias KamufBengt LindoffAnders Wallén
    • H04W4/00
    • H04W56/0045H04L5/001H04W72/12
    • 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.
    • 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。