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1. 发明授权

US08798655B2 Transmission power configuration method and apparatus for demodulation reference signal 有权
公开(公告)号：US08798655B2
公开(公告)日：2014-08-05
申请号：US13258310
申请日：2010-10-20
申请人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
发明人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
IPC分类号： H04W72/00 , H04B7/00 , H04W52/14 , H04W52/42 , H04W52/32 , H04L5/00
摘要： The present disclosure discloses a transmission power configuration method for a Demodulation Reference Signal (DMRS), and the method comprises: configuring the ratio between transmission power of a DMRS at each layer in a Resource Element (RE) and transmission power of data at a corresponding layer to be a constant value. Meanwhile, the present disclosure discloses a transmission power configuration apparatus for the DMRS. The present disclosure greatly improves the correct rate of data frame decoding, and improves decoding performance. The present disclosure enables the network side not need to notify a UE of the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer, which simplifies the overhead of the control signalling in the network side. As the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer is configured in the UE, the UE can implement channel estimation without waiting for the notification from the network side, which improves the channel estimation efficiency.

2. 发明申请

US20120300670A1 Pre-Coding Method and Apparatus Based on Mixed Multiplexing Demodulation Reference Signals 有权
标题翻译：基于混合复用解调参考信号的预编码方法和装置
公开(公告)号：US20120300670A1
公开(公告)日：2012-11-29
申请号：US13257662
申请日：2010-12-17
申请人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
发明人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
IPC分类号： H04L29/02
CPC分类号： H04L5/0023 , H04L5/0051 , H04L25/0204 , H04L25/0226 , H04L2025/03414 , H04L2025/03426
摘要： Disclosed in the present invention is a pre-coding method for hybrid multiplexing demodulation reference symbol (DMRS). The method includes: determining a multiplexing relationship between DMRS ports; making layers of data transport correspond to DMRS ports with the multiplexing relationship determined; and pre-coding pilot sequences corresponding to various DMRS ports according to the relationship between the layers of data transport and the DMRS ports. Also disclosed in the present invention is a method for mapping from a layer to a multiplexing demodulation reference symbol (DMRS) and an apparatus for achieving pre-coding based on a hybrid multiplexing demodulation reference symbol (DMRS). By way of the technical solution of the present invention, interference between the layers corresponding to different codeword streams can be avoided, and the accuracy of channel estimation can be improved.
摘要翻译：在本发明中公开了一种用于混合多路复用解调参考符号（DMRS）的预编码方法。该方法包括：确定DMRS端口之间的复用关系; 使层数据传输对应于DMRS端口，确定复用关系; 并根据数据传输层和DMRS端口之间的关系对与各种DMRS端口相对应的导频序列进行预编码。本发明还公开了一种从层到复用解调参考符号（DMRS）的映射方法以及基于混合复用解调参考符号（DMRS）实现预编码的装置。通过本发明的技术方案，可以避免对应于不同码字流的层之间的干扰，并且可以提高信道估计的精度。

3. 发明申请

US20120270591A1 Transmission power configuration method and apparatus for demodulation reference signal 有权
标题翻译：用于解调参考信号的发射功率配置方法和装置
公开(公告)号：US20120270591A1
公开(公告)日：2012-10-25
申请号：US13258310
申请日：2010-10-20
申请人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
发明人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
IPC分类号： H04W52/14
CPC分类号： H04W52/325 , H04L5/0035 , H04L5/0048 , H04W52/42
摘要： The present disclosure discloses a transmission power configuration method for a Demodulation Reference Signal (DMRS), and the method comprises: configuring the ratio between transmission power of a DMRS at each layer in a Resource Element (RE) and transmission power of data at a corresponding layer to be a constant value. Meanwhile, the present disclosure discloses a transmission power configuration apparatus for the DMRS. The present disclosure greatly improves the correct rate of data frame decoding, and improves decoding performance. The present disclosure enables the network side not need to notify a UE of the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer, which simplifies the overhead of the control signalling in the network side. As the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer is configured in the UE, the UE can implement channel estimation without waiting for the notification from the network side, which improves the channel estimation efficiency.
摘要翻译：本公开公开了一种解调参考信号（DMRS）的发送功率配置方法，该方法包括：配置资源元素（RE）中每层的DMRS的发送功率与相应的数据的发送功率之间的比率层是一个恒定值。同时，本公开公开了一种用于DMRS的发送功率配置装置。本发明大大提高了数据帧解码的正确率，提高了解码性能。本公开使得网络侧不需要向UE通知每层的DMRS的发送功率与相应层的数据的发送功率之间的对应关系，这简化了网络侧的控制信令的开销。由于UE在每层配置DMRS发送功率与对应层数据发送功率之间的对应关系，UE可以在不等待网络通知的情况下实现信道估计，提高了信道估计效率。

4. 发明授权

US08989109B2 Pre-coding method and apparatus based on mixed multiplexing demodulation reference signals 有权
标题翻译：基于混合复用解调参考信号的预编码方法和装置
公开(公告)号：US08989109B2
公开(公告)日：2015-03-24
申请号：US13257662
申请日：2010-12-17
申请人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
发明人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
IPC分类号： H04W72/04 , H04W4/00 , H04L12/26 , H04W52/14 , H04L5/00 , H04L25/02 , H04L25/03
CPC分类号： H04L5/0023 , H04L5/0051 , H04L25/0204 , H04L25/0226 , H04L2025/03414 , H04L2025/03426
摘要： Disclosed in the present invention is a pre-coding method for hybrid multiplexing demodulation reference symbol (DMRS). The method includes: determining a multiplexing relationship between DMRS ports; making layers of data transport correspond to DMRS ports with the multiplexing relationship determined; and pre-coding pilot sequences corresponding to various DMRS ports according to the relationship between the layers of data transport and the DMRS ports. Also disclosed in the present invention is a method for mapping from a layer to a multiplexing demodulation reference symbol (DMRS) and an apparatus for achieving pre-coding based on a hybrid multiplexing demodulation reference symbol (DMRS). By way of the technical solution of the present invention, interference between the layers corresponding to different codeword streams can be avoided, and the accuracy of channel estimation can be improved.
摘要翻译：在本发明中公开了一种用于混合多路复用解调参考符号（DMRS）的预编码方法。该方法包括：确定DMRS端口之间的复用关系; 使层数据传输对应于DMRS端口，确定复用关系; 并根据数据传输层和DMRS端口之间的关系对与各种DMRS端口相对应的导频序列进行预编码。本发明还公开了一种从层到复用解调参考符号（DMRS）的映射方法以及基于混合复用解调参考符号（DMRS）实现预编码的装置。通过本发明的技术方案，可以避免对应于不同码字流的层之间的干扰，并且可以提高信道估计的精度。

5. 发明授权

US08831657B2 Transmission power configuration method and apparatus for demodulation reference signal 有权
标题翻译：用于解调参考信号的发射功率配置方法和装置
公开(公告)号：US08831657B2
公开(公告)日：2014-09-09
申请号：US13258310
申请日：2010-10-20
申请人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
发明人： Yunfeng Sun , Wenfeng Zhang , Jing Jiang , Junfeng Zhang
IPC分类号： H04W72/00 , H04B7/00 , H04W52/14 , H04W52/42 , H04W52/32 , H04L5/00
CPC分类号： H04W52/325 , H04L5/0035 , H04L5/0048 , H04W52/42
摘要： The present disclosure discloses a transmission power configuration method for a Demodulation Reference Signal (DMRS), and the method comprises: configuring the ratio between transmission power of a DMRS at each layer in a Resource Element (RE) and transmission power of data at a corresponding layer to be a constant value. Meanwhile, the present disclosure discloses a transmission power configuration apparatus for the DMRS. The present disclosure greatly improves the correct rate of data frame decoding, and improves decoding performance. The present disclosure enables the network side not need to notify a UE of the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer, which simplifies the overhead of the control signalling in the network side. As the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer is configured in the UE, the UE can implement channel estimation without waiting for the notification from the network side, which improves the channel estimation efficiency.
摘要翻译：本公开公开了一种解调参考信号（DMRS）的发送功率配置方法，该方法包括：配置资源元素（RE）中每层的DMRS的发送功率与相应的数据的发送功率之间的比率层是一个恒定值。同时，本公开公开了一种用于DMRS的发送功率配置装置。本发明大大提高了数据帧解码的正确率，提高了解码性能。本公开使得网络侧不需要向UE通知每层的DMRS的发送功率与相应层的数据的发送功率之间的对应关系，这简化了网络侧的控制信令的开销。由于UE在每层配置DMRS发送功率与对应层数据发送功率之间的对应关系，UE可以在不等待网络通知的情况下实现信道估计，提高了信道估计效率。

6. 发明申请

US20130088949A1 METHODS AND SYSTEMS FOR CSI-RS RESOURCE ALLOCATION IN LTE-ADVANCE SYSTEMS 有权
标题翻译： LTE-ADVANCE系统中CSI-RS资源分配的方法与系统
公开(公告)号：US20130088949A1
公开(公告)日：2013-04-11
申请号：US13579494
申请日：2011-02-24
申请人： Wenfeng Zhang , Jing Jiang
发明人： Wenfeng Zhang , Jing Jiang
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04L5/0007 , H04L5/0048 , H04L5/0053
摘要： A method of allocating resource elements in an orthogonal frequency division multiplexed (OFDM) system for transmission of a channel state information reference signal (CSI-RS) is disclosed. The method includes converting one or more resource elements to a two-dimensional frequency-time domain; and partitioning the one or more converted resource elements to units of a physical resource block (PRB). One or more resource elements are patterned over at least a portion of the PRB for transmission of the CSI-RS. According to an embodiment, the CSI-RS resource elements with a same subcarrier index for a common cell are code division multiplexed (CDM), with a CDM dimension equal to a number of CSI-RS resource elements with the same subcarrier index for the common cell.
摘要翻译：公开了一种在正交频分复用（OFDM）系统中分配资源元素以发送信道状态信息参考信号（CSI-RS）的方法。该方法包括将一个或多个资源元素转换为二维频域 - 时域; 以及将所述一个或多个转换的资源元素划分为物理资源块（PRB）的单元。在PRB的至少一部分上图案化一个或多个资源元素以传输CSI-RS。根据实施例，对于公共小区具有相同子载波索引的CSI-RS资源元素是码分多路复用（CDM），其CDM维度等于具有相同副载波索引的CSI-RS资源元素的数量细胞。

7. 发明授权

US09072083B2 Methods and systems for CSI-RS resource allocation in LTE-advance systems 有权
标题翻译： LTE-advance系统中CSI-RS资源分配的方法和系统
公开(公告)号：US09072083B2
公开(公告)日：2015-06-30
申请号：US13579494
申请日：2011-02-24
申请人： Wenfeng Zhang , Jing Jiang
发明人： Wenfeng Zhang , Jing Jiang
IPC分类号： H04W72/04 , H04L5/00
CPC分类号： H04W72/04 , H04L5/0007 , H04L5/0048 , H04L5/0053
摘要： A method of allocating resource elements in an orthogonal frequency division multiplexed (OFDM) system for transmission of a channel state information reference signal (CSI-RS) is disclosed. The method includes converting one or more resource elements to a two-dimensional frequency-time domain; and partitioning the one or more converted resource elements to units of a physical resource block (PRB). One or more resource elements are patterned over at least a portion of the PRB for transmission of the CSI-RS. According to an embodiment, the CSI-RS resource elements with a same subcarrier index for a common cell are code division multiplexed (CDM), with a CDM dimension equal to a number of CSI-RS resource elements with the same subcarrier index for the common cell.
摘要翻译：公开了一种在正交频分复用（OFDM）系统中分配资源元素以发送信道状态信息参考信号（CSI-RS）的方法。该方法包括将一个或多个资源元素转换为二维频域 - 时域; 以及将所述一个或多个转换的资源元素划分为物理资源块（PRB）的单元。在PRB的至少一部分上图案化一个或多个资源元素，以传输CSI-RS。根据实施例，对于公共小区具有相同子载波索引的CSI-RS资源元素是码分多路复用（CDM），其CDM维度等于具有相同副载波索引的CSI-RS资源元素的数量细胞。

8. 发明申请

US20130208678A1 METHODS AND SYSTEMS FOR CSI-RS RESOURCE ALLOCATION IN LTE-ADVANCE SYSTEMS 有权
标题翻译： LTE-ADVANCE系统中CSI-RS资源分配的方法与系统
公开(公告)号：US20130208678A1
公开(公告)日：2013-08-15
申请号：US13817117
申请日：2011-08-16
申请人： Wenfeng Zhang
发明人： Wenfeng Zhang
IPC分类号： H04W72/04
CPC分类号： H04W72/0406 , H04L5/0053 , H04L5/0094
摘要： Systems and methods for the configuration of channel state information reference signals (CSI-RS) are disclosed. The systems and methods include providing user equipment with the locations of CSI-RS reuse information. Several encoding patterns and exemplary methodology for both the identification of the CSI-RS resource element locations are provided in exemplary embodiments. In addition, exemplary embodiments provide muting methods and systems for a physical downlink shared channel resource elements.
摘要翻译：公开了用于配置信道状态信息参考信号（CSI-RS）的系统和方法。系统和方法包括向用户设备提供CSI-RS重用信息的位置。在示例性实施例中提供了用于CSI-RS资源元素位置的识别的几种编码模式和示例性方法。此外，示例性实施例提供用于物理下行链路共享信道资源元素的静默方法和系统。

9. 发明申请

US20130128860A1 Methods and Systems for CSI-RS Resource Allocation in LTE-Advance Systems 审中-公开
标题翻译： LTE-Advance系统中CSI-RS资源分配的方法与系统
公开(公告)号：US20130128860A1
公开(公告)日：2013-05-23
申请号：US13701475
申请日：2011-06-01
申请人： Wenfeng Zhang
发明人： Wenfeng Zhang
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04L5/0053 , H04L27/2601
摘要： A method of allocating resource elements in an orthogonal frequency division multiplexed (OFDM) system for transmission of a channel state information reference signal (CSI-RS) without overlapping with resource elements allocated to a port-5 user equipment-specific reference signal (URS) signal is disclosed. The method can include shifting in a frequency domain at least a portion of resource elements allocated to the CSI-RS in a normal-CP subframe. According to certain embodiments, the allocation of resource elements can be defined per an 8-port CSI-RS, or per a group of eight CSI-RS resource elements, within a single physical resource block (PRB) whose time-domain dimension is one subframe and whose frequency-domain dimension is 12 subcarriers.
摘要翻译：一种在正交频分复用（OFDM）系统中分配资源元素以发送信道状态信息参考信号（CSI-RS）而不与分配给端口-5用户设备专用参考信号（URS）的资源元素重叠的方法，信号被公开。该方法可以包括在频域中移动在正常CP子帧中分配给CSI-RS的资源元素的至少一部分。根据某些实施例，可以在其时域维度为一个的单个物理资源块（PRB）内，每个8端口CSI-RS或每八组CSI-RS资源元素定义资源元素的分配子帧，其频域维度为12个子载波。

10. 发明授权

US08233413B2 Dynamic adjustment of downlink/uplink allocation ratio in TDD wireless systems 有权
标题翻译： TDD无线系统中下行/上行分配比的动态调整
公开(公告)号：US08233413B2
公开(公告)日：2012-07-31
申请号：US12367467
申请日：2009-02-06
申请人： Wenfeng Zhang , Yonggang Fang
发明人： Wenfeng Zhang , Yonggang Fang
IPC分类号： H04J3/00
CPC分类号： H04B7/2656 , H04L5/14 , H04W56/003 , H04W72/0446 , H04W72/0493 , H04W72/1263
摘要： Techniques, apparatuses, and systems for dynamically changing downlink and uplink allocations can include operating a base station under time division duplexing to communicate with one or more mobile devices using a frame structure, adjusting a downlink-uplink ratio to change an allocation between uplink and downlink data capacities in the frame structure, determining a mute interval based on the adjusted downlink-uplink ratio, generating mute information based on the mute interval to identify the one or more areas of the frame structure effected by the allocation change, and transmitting the mute information to the one or more mobile devices.
摘要翻译：用于动态改变下行链路和上行链路分配的技术，装置和系统可以包括在时分双工下运行基站以使用帧结构与一个或多个移动设备进行通信，调整下行链路 - 上行链路比率以改变上行链路和下行链路之间的分配在帧结构中的数据容量，基于经调整的下行链路上行链路比率确定静默间隔，基于静默间隔产生静音信息，以识别由分配改变影响的帧结构的一个或多个区域，以及发送静音信息到一个或多个移动设备。

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