Methods and systems for CSI-RS resource allocation in LTE-advance systems
    91.
    发明授权
    Methods and systems for CSI-RS resource allocation in LTE-advance systems 有权
    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

    CPC classification number: H04W72/04 H04L5/0007 H04L5/0048 H04L5/0053

    Abstract: 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.

    Abstract translation: 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。

    Signaling of random access preamble sequences in wireless networks
    92.
    发明授权
    Signaling of random access preamble sequences in wireless networks 有权
    无线网络中随机接入前导码序列的信令

    公开(公告)号:US08773968B2

    公开(公告)日:2014-07-08

    申请号:US12184239

    申请日:2008-07-31

    Abstract: Transmission of random access preamble structures within a cellular wireless network is based on the use of cyclic shifted constant amplitude zero autocorrelation (“CAZAC”) sequences to generate the random access preamble signal. A pre-defined set of sequences is arranged in a specific order. Within the predefined set of sequences is an ordered group of sequences that is a proper subset of the pre-defined set of sequences. Within a given cell, up to 64 sequences may need to be signaled. In order to minimize the associated overhead due to signaling multiple sequences, only one logical index is transmitted by a base station serving the cell and a user equipment within the cell derives the subsequent indexes according to the pre-defined ordering. Each sequence has a unique logical index. The ordering of sequences is identified by the logical indexes of the sequences, with each logical index uniquely mapped to a generating index. When a UE needs to transmit, it produces a second sequence using the received indication of the logical index of the first sequence and an auxiliary parameter and then produces a transmission signal by modulating the second sequence.

    Abstract translation: 蜂窝无线网络内的随机接入前同步码结构的传输是基于使用循环移位恒幅零自相关(“CAZAC”)序列来生成随机接入前同步信号的。 按照特定顺序排列预定义的序列集合。 在预定义的序列集合内,是序列的有序组,其是预定义序列集合的适当子集。 在给定的小区内,可能需要发信号通知多达64个序列。 为了最小化由于信令多个序列引起的相关开销,仅由服务于小区的基站发送一个逻辑索引,并且小区内的用户设备根据预定义的顺序导出后续索引。 每个序列都有唯一的逻辑索引。 序列的顺序由序列的逻辑索引识别,每个逻辑索引唯一映射到生成索引。 当UE需要发送时,它使用接收到的第一序列的逻辑索引的指示和辅助参数产生第二序列,然后通过调制第二序列来产生传输信号。

    Method and system for transmitting channel feedback information
    93.
    发明申请
    Method and system for transmitting channel feedback information 有权
    发送信道反馈信息的方法和系统

    公开(公告)号:US20140146751A1

    公开(公告)日:2014-05-29

    申请号:US14131360

    申请日:2012-03-20

    CPC classification number: H04W72/1289 H04L1/0027 H04W24/08

    Abstract: The disclosure provides a method and system for transmitting channel feedback information. The method includes: a transmitting station transmits, after obtaining a Transmission Opportunity (TXOP), a radio frame to a receiving station to request the receiving station to transmit channel feedback information; and the receiving station transmitting, after receiving the radio frame transmitted by the transmitting station, a radio frame including channel feedback information to the transmitting station, wherein a transmission end time of the radio frame including channel feedback information is allowed to exceed an end time set by a transmission time threshold of the TXOP. The technical solution of the disclosure solves the technical problem that the transmitter is unable to timely obtain channel feedback information from the receiver, enabling the transmitter to timely obtain the channel feedback information from the receiver even in the condition that the transmitter cannot estimate a data volume and a rate of the channel feedback information fed back from the receiving station and whether the time for feeding back the channel feedback information by the receiver would exceed the transmission time threshold value or not.

    Abstract translation: 本公开提供了一种用于发送信道反馈信息的方法和系统。 该方法包括:发送站在获得发送机会(TXOP)之后向接收站发送无线帧,以请求接收站发送信道反馈信息; 以及所述接收站在发送站发送的无线帧之后,将包括信道反馈信息的无线帧发送到所述发送站,其中包括信道反馈信息的无线帧的发送结束时间被允许超过设定的结束时间 通过TXOP的传输时间阈值。 本发明的技术方案解决了发射机不能及时从接收机获取信道反馈信息的技术问题,即使在发射机无法估计数据量的情况下,也能使发射机及时获得来自接收机的信道反馈信息 以及从接收站反馈的信道反馈信息的速率以及接收机反馈信道反馈信息的时间是否超过传输时间阈值。

    Transmission using nested OFDMA
    94.
    发明授权
    Transmission using nested OFDMA 有权
    使用嵌套OFDMA传输

    公开(公告)号:US08724542B2

    公开(公告)日:2014-05-13

    申请号:US12858944

    申请日:2010-08-18

    Abstract: A transmission of information within a wireless cellular network may include a first and second group of samples. A first group of samples is created comprising at least a first and a last subgroup, wherein the last subgroup is same as the first subgroup. A second group of samples created. A transformed set of samples produced by jointly transforming the created first and second group with a discrete Fourier transform (DFT). The transformed set of samples is expanded to produce an expanded set, and the expanded set is transformed with an inverse discrete Fourier transform (IDFT) to produce an OFDM symbol with a fractional payload. The first group of samples is a reference signal (RS), which is known to the receiver before the transmission occurs, while the second group of samples is information data.

    Abstract translation: 无线蜂窝网络内的信息传输可以包括第一和第二组样本。 创建包括至少第一和最后一个子组的第一组样本,其中最后一个子组与第一个子组相同。 第二组样本创建。 通过用离散傅立叶变换(DFT)联合变换所创建的第一组和第二组而产生的经变换的样本组。 经变换的样本集合被扩展以产生扩展集合,并且利用逆离散傅里叶变换(IDFT)来变换扩展集合以产生具有小数有效载荷的OFDM符号。 第一组样本是参考信号(RS),其在传输发生之前是接收机已知的,而第二组样本是信息数据。

    Mapping between logical and physical uplink control resource blocks in wireless networks
    95.
    发明授权
    Mapping between logical and physical uplink control resource blocks in wireless networks 有权
    无线网络逻辑上行链路控制资源块之间的映射

    公开(公告)号:US08630240B2

    公开(公告)日:2014-01-14

    申请号:US12372980

    申请日:2009-02-18

    Abstract: A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations on an uplink channel in a wireless network. A scheme for mapping between logical uplink control channel (PUCCH) resource blocks (RBs) and physical RBs (PRBs) used by PUCCH is described. A logical uplink control resource block index nLRB is derived by the secondary node in response to information from the primary node. The secondary node then maps the logical uplink control resource block index nLRB to a first uplink physical resource block index nPRB,1 of a plurality of uplink physical resource blocks. The secondary node then transmits an uplink control information in a subframe using one of the plurality of uplink physical resource blocks indexed by nPRB,1.

    Abstract translation: 信息从次级到主节点的传输在无线网络中的上行链路信道上的多个N个逻辑持续时间内发生。 描述了由PUCCH使用的逻辑上行链路控制信道(PUCCH)资源块(RB)和物理RB(PRB)之间的映射方案。 响应于来自主节点的信息,辅助节点导出逻辑上行链路控制资源块索引nLRB。 然后,辅助节点将逻辑上行链路控制资源块索引nLRB映射到多个上行链路物理资源块的第一上行链路物理资源块索引nPRB,1。 然后,次级节点使用由nPRB,1索引的多个上行链路物理资源块中的一个,在子帧中发送上行链路控制信息。

    Method and system for transmitting relay link control channel
    96.
    发明授权
    Method and system for transmitting relay link control channel 有权
    发送中继链路控制信道的方法和系统

    公开(公告)号:US08599783B2

    公开(公告)日:2013-12-03

    申请号:US13203462

    申请日:2010-03-12

    Abstract: A method and system for transmitting a relay link control channel are disclosed for realizing the mapping and transmission of a control channel on a link from an eNode-B to a relay node. In the present invention, in a frequency division multiplex mode, control information is carried by one or more resource blocks in the frequency direction and the universal set of OFDM symbols available to a relay link in a subframe in the time direction; in a time division and frequency division multiplex mode, control information is carried by one or more resource blocks in the frequency direction and a subset of OFDM symbols available to a relay link in a subframe in the time direction; in a time division multiplex mode, control information is carried by all the resource blocks in the frequency direction and a subset of OFDM symbols available to a relay link in a subframe in the time direction; and the mapping of the control channel includes mapping in the time direction and/or the frequency direction. The present invention has backward compatibility and can obtain frequency diversity again. The time division multiplex mode can save power consumption, and the frequency division multiplex mode and the time division and frequency division multiplex mode have the advantages of flexible service scheduling.

    Abstract translation: 公开了一种用于发送中继链路控制信道的方法和系统,用于实现从eNode-B到中继节点的链路上的控制信道的映射和传输。 在本发明中,在频分多路复用模式中,控制信息由频率方向上的一个以上的资源块和在时间方向的子帧中可用于中继链路的通用的OFDM符号组来承载, 在时分和频分复用模式中,控制信息由频率方向上的一个或多个资源块和在时间方向上的子帧中的中继链路可用的OFDM符号的子集承载; 在时分多路复用模式中,控制信息由频率方向上的所有资源块和在时间方向上的子帧中的中继链路可用的OFDM符号的子集承载; 并且控制信道的映射包括在时间方向和/或频率方向上的映射。 本发明具有向后兼容性并且可以再次获得频率分集。 时分多路复用模式可以节省功耗,并且频分复用模式,时分复用和频分复用方式具有灵活的业务调度优点。

    Method and System for Channel Reservation
    97.
    发明申请
    Method and System for Channel Reservation 审中-公开
    频道预约方法与系统

    公开(公告)号:US20130148615A1

    公开(公告)日:2013-06-13

    申请号:US13816667

    申请日:2011-06-23

    CPC classification number: H04W28/26 H04W74/0816

    Abstract: The disclosure provides a method and a system for channel reservation. The method comprises: a sending station sending a channel reservation request message to a receiving station on a first number of fundamental channels, wherein the first number is an integer greater than or equal to 1, and each one of the fundamental channels is a minimum-bandwidth channel defined in a system in which the sending station and the receiving station locate; the receiving station sending a channel reservation acknowledgement message to the sending station on a second number of fundamental channels, wherein the second number is an integer greater than or equal to 1; and the sending station receiving the channel reservation acknowledgement message, and completing channel reservation with the receiving station. With the disclosure, interference caused by other sending stations can be avoided.

    Abstract translation: 本公开提供了一种用于信道预留的方法和系统。 该方法包括:发送站在第一数量的基本信道上向接收站发送信道预留请求消息,其中第一个数字是大于或等于1的整数,并且每个基本信道是最小 - 在发送站和接收站所在的系统中定义的带宽信道; 所述接收站在第二数量的基本信道上向所述发送站发送信道预约确认消息,其中所述第二数字是大于或等于1的整数; 并且发送站接收信道预约确认消息,并且与接收站完成信道预留。 通过该公开,可以避免由其他发送站造成的干扰。

    Transmission of multiple ACK/NAK bits with data
    99.
    发明授权
    Transmission of multiple ACK/NAK bits with data 有权
    用数据传输多个ACK / NAK位

    公开(公告)号:US08335165B2

    公开(公告)日:2012-12-18

    申请号:US12397763

    申请日:2009-03-04

    CPC classification number: H04W8/30

    Abstract: This invention is a method of wireless communication having a communications protocol providing more downlink subframes than uplink subframes. The user equipment transmits a combination of a plurality of ACK/NAK response signals and related data. The related data could be the number of bits N of the plurality of ACK/NAK response signals or the number of detected downlink communications grants S requiring ACK/NAK response signals. This related data could be a cyclical redundancy check set of bits which may be scrambled upon the numbers N or S. Similar selections are feasible with resource elements or an index of a modulation symbol or codeword.

    Abstract translation: 本发明是一种具有通信协议的无线通信方法,该通信协议提供比上行链路子帧更多的下行链路子帧。 用户设备发送多个ACK / NAK响应信号和相关数据的组合。 相关数据可以是多个ACK / NAK响应信号中的位数N或检测到的需要ACK / NAK响应信号的下行链路通信许可S的数量。 该相关数据可以是可以在数字N或S上加扰的位的循环冗余校验集合。类似的选择对于资源元素或调制符号或码字的索引是可行的。

    Pre-Coding Method and Apparatus Based on Mixed Multiplexing Demodulation Reference Signals
    100.
    发明申请
    Pre-Coding Method and Apparatus Based on Mixed Multiplexing Demodulation Reference Signals 有权
    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

    Abstract: 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.

    Abstract translation: 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。

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