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    • 61. 发明申请
    • UPLINK SCRAMBLING DURING RANDOM ACCESS
    • 随机访问期间的上拉屏
    • US20090041240A1
    • 2009-02-12
    • US11835782
    • 2007-08-08
    • Stefan ParkvallErik DahlmanTobias Tynderfeldt
    • Stefan ParkvallErik DahlmanTobias Tynderfeldt
    • H04K1/00
    • H04W72/0413H04W72/02H04W74/004H04W74/0833
    • The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may be specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they are not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.
    • 在这种情况下描述的技术有助于用无线电基站的用户终端的随机接入。 用户终端确定第一类型的上行链路扰频序列中的一个,并且使用所确定的第一类型的上行链路扰频序列来生成随机接入消息。 随机接入消息被发送到基站。 用户终端从基站接收第二种不同类型的上行加扰序列,并将其用于与无线基站的后续通信。 例如,第一上行链路扰频序列可以与无线电基站的小区区域或与无线电基站相关联的随机接入无线电信道具体地关联,但是它们没有被特别分配给任何用户终端,并且第二上行链路加扰序列可以 从可专用于各个用户终端的第二组上行链路扰频序列中选择。
    • 64. 发明授权
    • Flexible ARQ for packet data transmission
    • 灵活的ARQ用于数据包传输
    • US06907005B1
    • 2005-06-14
    • US09621672
    • 2000-07-24
    • Erik DahlmanStefan Parkvall
    • Erik DahlmanStefan Parkvall
    • H04L1/18G01R31/08
    • H04L1/1819H04L1/1803H04L1/187H04L1/1874H04L1/188
    • The present invention provides a flexible ARQ scheme. A communications channel is set up between a transmitter and a receiver. A value is selected for an ARQ parameter for data packets to be transmitted over the communications channel. The ARQ parameter value may be selected in accordance with a trade-off between a desired performance or goal, e.g., a specific throughput of data packets transmitted over the communications channel, and one or more communication resources required to support the desired performance or goal. An example of an ARQ parameter is a number of outstanding data packets to be acknowledged by the receiver before more packets can be sent to the receiver. Another parameter example is a delay associated with the ARQ scheme. In a preferred, non-limiting example embodiment, first and second ARQ parameter values are selected for a desired trade-off. Accordingly, a specific number of outstanding data packets to be acknowledged by the receiver and an acknowledgement or retransmission delay can be selected to achieve a desired performance, e.g., a desired throughput of data packets, at a particular resource cost. Because of the flexibility provided by the present invention, a communications device may set its own objectives for a particular connection based upon one or more performance requirements, communication resources, or other requirements.
    • 本发明提供了一种灵活的ARQ方案。 在发射机和接收机之间建立通信信道。 为通过通信信道发送的数据包的ARQ参数选择一个值。 ARQ参数值可以根据所需性能或目标之间的折衷来选择,例如通过通信信道发送的数据分组的特定吞吐量,以及支持期望性能或目标所需的一种或多种通信资源。 ARQ参数的示例是在更多分组可以被发送到接收机之前由接收机确认的未完成数据分组的数量。 另一个参数示例是与ARQ方案相关联的延迟。 在优选的非限制性示例性实施例中,选择第一和第二ARQ参数值用于期望的权衡。 因此,可以选择要由接收机确认的特定数量的未完成数据分组以及确认或重传延迟,以便以特定资源成本实现期望的性能,例如期望的数据分组吞吐量。 由于本发明提供的灵活性,通信设备可以基于一个或多个性能要求,通信资源或其他要求为特定连接设置其自己的目标。
    • 65. 发明授权
    • Efficient radio link adaptation and base station sector selection in a radio communication system
    • 在无线电通信系统中有效的无线电链路适配和基站扇区选择
    • US06542736B1
    • 2003-04-01
    • US09542984
    • 2000-04-04
    • Stefan ParkvallErik Dahlman
    • Stefan ParkvallErik Dahlman
    • H04Q700
    • H04W28/20H04B7/02H04W16/24H04W16/28
    • A mobile terminal sends rapidly changing information relating to the downlink transmission of packet data from a base station sector to the mobile terminal at a higher rate on a fast channel. This rapidly changing information may include, for example, a current data transmission rate and/or a current base station sector identification. Information that changes more slowly, such as the identification of a base station to handle the mobile terminal communication, is communicated to the base station at a lower rate on a slow channel. The information received from the mobile terminal at the higher rate is used by the base station to request a particular sector (and preferably also a sector antenna) to transmit data to the mobile terminal and/or to adjust the current maximum data transmission rate to the mobile terminal. A mobile terminal may also make similar sector/rate requests from plural sectors at the same time as well as from plural sector antennas.
    • 移动终端在快速信道上以更高的速率将与分组数据的下行链路传输有关的快速变化的信息从基站扇区发送到移动终端。 这种快速变化的信息可以包括例如当前数据传输速率和/或当前基站扇区标识。 变化较慢的信息,例如用于处理移动终端通信的基站的识别,以较慢的信道以较低的速率传送给基站。 以较高速率从移动终端接收的信息被基站用来请求特定扇区(并且优选地是扇区天线)向移动终端发送数据和/或将当前最大数据传输速率调整到 移动终端。 移动终端也可以从多个扇区天线同时进行来自多个扇区的类似的扇区/速率请求。
    • 67. 发明授权
    • Channel sounding using multiple sounding configurations
    • 使用多个探测配置的通道探测
    • US09300495B2
    • 2016-03-29
    • US12672324
    • 2008-06-16
    • Erik DahlmanYlva JadingStefan Parkvall
    • Erik DahlmanYlva JadingStefan Parkvall
    • H04W4/00H04L25/02H04L5/00H04L27/26
    • H04L27/2613H04L5/0051H04L25/0226
    • More than one set of sounding signal configuration parameters are determined for the same mobile terminal. The mobile terminal uses the sets of configuration parameters to generate different sounding reference signals which can be used for different purposes such as estimating timing and channel quality. In one embodiment, a method of configuring uplink sounding transmissions by mobile terminals in a wireless communication network is characterized by determining different sets of configuration parameters for sounding signal transmissions for a given mobile terminal (200). The different sets of configuration parameters are transmitted to the mobile terminal, allowing the mobile terminal to generate different sounding signals for different uses by the wireless communication network (202).
    • 确定同一移动终端的多组探测信号配置参数。 移动终端使用该组配置参数来生成可用于不同目的的不同的探测参考信号,例如估计定时和信道质量。 在一个实施例中,在无线通信网络中配置移动终端的上行链路探测传输的方法的特征在于确定用于给定移动终端(200)的用于探测信号传输的不同组配置参数。 将不同的配置参数集合发送到移动终端,允许移动终端为无线通信网络(202)的不同用途生成不同的探测信号。
    • 68. 发明授权
    • Resource allocation for co-existing networks
    • 共存网络的资源分配
    • US09236938B2
    • 2016-01-12
    • US12307763
    • 2007-07-04
    • Stefan ParkvallErik DahlmanWalter MüllerGöran Rune
    • Stefan ParkvallErik DahlmanWalter MüllerGöran Rune
    • H04J3/00H04W4/00H04B7/26H04W36/00H04W72/00H04W72/04H04W72/12
    • H04B7/2656H04W36/00H04W72/00H04W72/04H04W72/12
    • The present invention relates to methods and arrangements for improving the capabilities of an evolved Universal Terrestrial Radio Access Network, in particular for cases when more than one radio access network applying a time-division duplex transmission mode need to co-exist on a same carrier. The invention addresses further problems concerning an efficient allocation of uplink resources and resource allocation in a handover situation. The present invention assigns an attribute in form of a distinguishing value to the time slots used for the uplink and downlink transmission on said carrier such as to avoid scheduling of transmissions via a first radio access network in downlink or uplink time slots assigned to the second radio access network and to avoid scheduling of transmissions via the second radio access network in uplink time slots assigned for transmissions in the first radio access network.
    • 本发明涉及用于改进演进的通用陆地无线电接入网络的能力的方法和装置,特别是在应用时分双工传输模式的多于一个无线电接入网络需要共同存在于相同载波上的情况下。 本发明解决了在切换情况下有效分配上行链路资源和资源分配的问题。 本发明以对于所述载波上的上行链路和下行链路传输的时隙为特征值分配属性,以避免在分配给第二无线电的下行链路或上行链路时隙中经由第一无线电接入网络调度传输 并且避免在分配给第一无线电接入网络中的传输的上行链路时隙中经由第二无线电接入网络调度传输。