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    • 2. 发明公开
    • State dependent advanced receiver processing in a wireless mobile device
    • 无线移动设备中依赖于状态的高级接收器处理
    • EP2224634A3
    • 2010-09-29
    • EP10154926.9
    • 2010-02-26
    • RESEARCH IN MOTION LIMITED
    • Duggan, Jason Robert
    • H04L1/00H04B1/16H04W52/02H04L1/18H04L25/03
    • H04L1/0053H04L1/0021H04L1/0051H04L1/1812H04L1/1829H04W24/00
    • A method for receiver processing in a 3GPP Long Term Evolution (LTE) receiver processing chain in a wireless mobile device is provided. LTE initial sub-frame transmitted from a base station is received on a LTE signalling channel. The sub-frame is received using a basic receiver. An integrity check is performed to determine if the sub-frame was demodulated and decoded correctly by the basic receiver. An advanced receiver is enabled prior to receiving an expected retransmission sub-frame based upon the integrity check failing and a hybrid-acknowledgement request (HARQ) negative acknowledgement (NAK) being sent by the wireless mobile device. The retransmission sub-frame is received using the advanced receiver. The basic receiver is enabled when the integrity check of the retransmission sub-frame passes and a acknowledgement (ACK) is by the wireless mobile device or a new data indicator (NDI) is set in a control channel indicating that the transmission is an initial transmission.
    • 提供了一种用于无线移动设备中的3GPP长期演进(LTE)接收机处理链中的接收机处理的方法。 在LTE信令信道上接收从基站发送的LTE初始子帧。 使用基本接收器接收子帧。 执行完整性检查以确定子帧是否被基本接收机正确解调和解码。 基于由无线移动设备发送的完整性检查失败和混合确认请求(HARQ)否定确认(NAK),在接收期望的重传子帧之前启用高级接收器。 重传子帧是使用高级接收器接收的。 当重传子帧的完整性检查通过并且无线移动设备发出确认(ACK)或者在控制信道中设置新数据指示符(NDI)时,基本接收机被启用,指示该传输是初始传输 。
    • 5. 发明公开
    • Sphere decoding for MIMO transmission
    • SphärendekodierungfürMIMO-Übertragung
    • EP2309689A1
    • 2011-04-13
    • EP09172394.0
    • 2009-10-07
    • RESEARCH IN MOTION LIMITED
    • Duggan, Jason Robert
    • H04L25/03
    • H04L25/03242H04L2025/03414H04L2025/03426
    • Received point coordinates and estimated candidate coordinates are represented by a reduced bit representation, dividing each dimension into uniformly sized segments. A bounded region surrounding the received point is defined in the total number of dimensions, the bounded region being a hypercube. For each candidate, an elimination process is carried out including : determining whether the candidate is inside or outside the bounded region, eliminating the candidate if it is outside, storing it if it is inside, adding a further bit thereby reducing a size of the bounded region; repeating the elimination process for the candidates stored as potential solutions until a single solution is obtained; determining the transmitted symbols from the single solution found.
    • 接收点坐标和估计的候选坐标由减少的位表示来表示,将每个维度分成均匀大小的段。 围绕接收点的有界区域被定义在总维数中,有界区域是超立方体。 对于每个候选者,执行消除处理,包括:确定候选者是否在有界区域内部或外部,如果候选者在外部时消除候选者,则将其存储在内部,再添加一个比特,从而减小有界区域的大小 地区; 重复存储为潜在解决方案的候选者的消除过程,直到获得单个解; 从找到的单个解决方案中确定发送的符号。
    • 8. 发明公开
    • System and method for channel estimation
    • 系统和Verfahren zurKanalschätzung
    • EP2413551A1
    • 2012-02-01
    • EP10171305.5
    • 2010-07-29
    • RESEARCH IN MOTION LIMITED
    • Weng, JianfengVelez, Edgar FilbertoPanicker, John PuthenKosakowski, MartinDuggan, Jason Robert
    • H04L25/02
    • H04L25/0206H04L5/0048H04L25/0232H04L27/2647
    • A method for channel estimation includes receiving data at a number of frequency intervals in a frequency band over a number of first time intervals. A first set of channel estimates is determined (152) for each pilot symbol (106) within the data over a second time interval comprising at least one first time interval, and time-direction interpolation (154) is performed to determine a second set of channel estimates for a number of data portions in a frequency interval using the first set of channel estimates. The frequency interval comprises a data portion comprising a pilot symbol (106). Frequency-direction interpolation (156) is performed to determine a third set of channel estimates for each first time interval. The time-direction interpolation (154) and the frequency-direction interpolation (156) can be performed in reverse order with the channel estimates generated by the frequency-direction interpolation (156) being used as inputs for time-direction interpolation (154).
    • 用于信道估计的方法包括以多个第一时间间隔在频带中以多个频率间隔接收数据。 在包括至少一个第一时间间隔的第二时间间隔内,针对数据内的每个导频符号(106)确定第一组信道估计(152),并且执行时间方向内插(154)以确定第二组 使用第一组信道估计在频率间隔中的多个数据部分的信道估计。 频率间隔包括包括导频符号(106)的数据部分。 频率方向内插(156)被执行以确定每个第一时间间隔的第三组信道估计。 时间方向内插(154)和频道内插(156)可以以频率方向内插(156)生成的信道估计用作时间插值输入(154)的相反顺序执行。
    • 10. 发明公开
    • State dependent advanced receiver processing in a wireless mobile device
    • VORWÄRTSFEHLER-KORREKTURENTSCHLÜSSELUNGSVERMEIDUNGBASIEREND AUF DER VORHERGESAGTENVERSCHLÜSSELUNGSBLOCKIERUNGSVERLÄSSLICHKEIT
    • EP2224634A2
    • 2010-09-01
    • EP10154926.9
    • 2010-02-26
    • RESEARCH IN MOTION LIMITED
    • Duggan, Jason Robert
    • H04L1/00H04B1/16H04W52/02H04L1/18
    • H04L1/0053H04L1/0021H04L1/0051H04L1/1812H04L1/1829H04W24/00
    • A method for receiver processing in a 3GPP Long Term Evolution (LTE) receiver processing chain in a wireless mobile device is provided. LTE initial sub-frame transmitted from a base station is received on a LTE signalling channel. The sub-frame is received using a basic receiver. An integrity check is performed to determine if the sub-frame was demodulated and decoded correctly by the basic receiver. An advanced receiver is enabled prior to receiving an expected retransmission sub-frame based upon the integrity check failing and a hybrid-acknowledgement request (HARQ) negative acknowledgement (NAK) being sent by the wireless mobile device. The retransmission sub-frame is received using the advanced receiver. The basic receiver is enabled when the integrity check of the retransmission sub-frame passes and a acknowledgement (ACK) is by the wireless mobile device or a new data indicator (NDI) is set in a control channel indicating that the transmission is an initial transmission.
    • 提供了一种在无线移动设备中的3GPP长期演进(LTE)接收机处理链中的接收机处理方法。 在LTE信令信道上接收从基站发送的LTE初始子帧。 使用基本接收器接收子帧。 执行完整性检查以确定子帧是否被基本接收机正确解调和解码。 在基于完整性检查失败的接收到预期的重传子帧和由无线移动设备发送的混合确认请求(HARQ)否定确认(NAK))之前启用高级接收器。 使用高级接收机接收重传子帧。 当重传子帧的完整性检查通过并且无线移动设备的确认(ACK)或新的数据指示符(NDI)被设置在指示传输是初始传输的控制信道中时,基本接收机被使能 。