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    • 3. 发明授权
    • Initialization of reference signal scrambling
    • 参考信号加扰初始化
    • US08300587B2
    • 2012-10-30
    • US12715353
    • 2010-03-01
    • Mieszko ChmielPeng ChenTommi Tapani KoivistoXiang Guang CheTimo Eric Roman
    • Mieszko ChmielPeng ChenTommi Tapani KoivistoXiang Guang CheTimo Eric Roman
    • H04W4/00H04J3/16
    • H04J11/0069H04L27/2613
    • A scrambling sequence is initialized using at least a cell identifier and an offset, and a physical downlink control information DCI is sent to a user equipment which indicates the offset. In more particular embodiments a user equipment-specific reference signal UE-RS is scrambled using the initialized scrambling sequence, and the scrambled UE-RS is sent to the UE for demodulating a downlink shared channel (PDSCH). In another exemplary embodiment the generated UE-RS is sent in a pilot part of a subframe transmission associated with the PDSCH and is for demodulating at least a data part of that subframe transmission. In a specific embodiment from the UE side, the UE receives the UE-RS and the DCI which indicates the offset, descrambles the UE-RS using a scrambling sequence that is initialized using a cell identifier and the indicated offset; and demodulates the PDSCH using the de-scrambled UE-RS.
    • 使用至少小区标识符和偏移来初始化加扰序列,并且向指示偏移的用户设备发送物理下行链路控制信息DCI。 在更具体的实施例中,使用初始化的加扰序列对用户设备专用参考信号UE-RS进行加扰,并且将加扰的UE-RS发送给用于解调下行链路共享信道(PDSCH)的UE。 在另一个示例性实施例中,所生成的UE-RS在与PDSCH相关联的子帧传输的导频部分中被发送,并且用于解调该子帧传输的至少一个数据部分。 在来自UE侧的特定实施例中,UE接收指示偏移的UE-RS和DCI,使用使用小区标识符和指示的偏移量初始化的加扰序列来解扰UE-RS; 并使用去加扰的UE-RS解调PDSCH。
    • 5. 发明申请
    • ACK/NACK TRANSMISSION ON PUCCH IN LTE-ATDD WITH NXPDCCH STRUCTURE
    • 具有NXPDCCH结构的LTE-ATDD中的PUCCH上的ACK / NACK传输
    • US20110141878A1
    • 2011-06-16
    • US12934655
    • 2009-03-25
    • Xiang Guang ChePeng ChenTroels Emit KoldingFrank Frederik
    • Xiang Guang ChePeng ChenTroels Emit KoldingFrank Frederik
    • H04L12/26
    • H04L1/003H04L1/0025H04L1/1621H04L1/1854H04L5/0053
    • Systems and methods are provided for enabling different “bundling” methods for downlink transmissions and provide different interpretations of the acknowledgement/negative-acknowledgement bit. A user equipment is configured so that it commonly acknowledges all downlink transmission time intervals within a bundle so that if one packet is determined to be erroneous, all packets in that bundle will be retransmitted. Additionally, the systems and methods are implemented by allowing an interpretation to be applied to the uplink acknowledgement/negative-acknowledgement field such that the user equipment is able to divide bundled downlink packets into smaller windows in Long Term Evolution (LTE) Release 8 time division duplex (TDD) mode. In LTE Advanced (LTE-A) TDD mode, various embodiments provide bundling within the time domain, within the frequency domain, and within a hybrid time-frequency domain. Furthermore, enhanced channel selection methods are also provided in support of the above-mentioned bundling methods in accordance with various embodiments.
    • 提供的系统和方法用于实现用于下行链路传输的不同的“捆绑”方法,并且提供对确认/否定确认位的不同解释。 用户设备被配置为使得它通常确认束内的所有下行链路传输时间间隔,使得如果确定一个分组是错误的,则该分组中的所有分组将被重传。 另外,通过允许将解释应用于上行链路确认/否定确认字段来实现系统和方法,使得用户设备能够在长期演进(LTE)版本8时分中将分组的下行链路分组划分为更小的窗口 双工(TDD)模式。 在LTE高级(LTE-A)TDD模式中,各种实施例提供了时域内,频域内,混合时频域内的绑定。 此外,还提供了增强的信道选择方法,以支持根据各种实施例的上述捆绑方法。
    • 10. 发明申请
    • Multiple Uplink Control Channel Transmission with Reduced Cubic Metric
    • 具有降低立方度量的多个上行链路控制信道传输
    • US20120120926A1
    • 2012-05-17
    • US13322741
    • 2010-05-21
    • Peng ChenChun Yan GaoEsa Tapani TiirolaKari Pekka Pajukoski
    • Peng ChenChun Yan GaoEsa Tapani TiirolaKari Pekka Pajukoski
    • H04W72/04H04J3/00
    • H04L5/0007H04L5/001H04L5/0053H04L5/0055
    • It is determined that there are X uplink control channel resources available for uplink signaling. Each of those X uplink control channel resources are sub-channelized into a plurality of sub-channels that each defines a unique time instant or point in time. For each of Y units of control information there is selected a unique combination of one of the sub-channels and a modulation (X and Y are each integers greater than one). The Y units of control information are sent on the X uplink control channel resources according to the respectively selected combinations. By example the uplink resources may be an ACK/NAK/DTX bit on a of one of the sub-channels and a modulation PUCCH. In one example the sub-channels are individual slots of a PUCCH. In another example the sub-channels are the reference-signal part and the data part of a single PUCCH slot.
    • 确定存在可用于上行链路信令的X个上行链路控制信道资源。 这些X个上行链路控制信道资源中的每一个被子信道化为多个子信道,每个子信道定义唯一的时刻或时间点。 对于Y单位的控制信息,选择子信道之一和调制(X和Y各自为大于1的整数)的唯一组合。 控制信息的Y单元根据所选择的组合在X上行链路控制信道资源上发送。 作为示例,上行链路资源可以是子信道之一上的ACK / NAK / DTX比特和调制PUCCH。 在一个示例中,子信道是PUCCH的各个时隙。 在另一示例中,子信道是单个PUCCH时隙的参考信号部分和数据部分。