公开(公告)号：US20100260154A1

公开(公告)日：2010-10-14

申请号：US12756777

申请日：2010-04-08

申请人： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

发明人： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

IPC分类号： H04W72/12

CPC分类号： G01S5/10 ,  G01S5/0205

摘要： A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

摘要翻译： 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号。 在接收到子帧时，无线通信设备基于与发送子帧的基站相关联的标识符来确定哪一组传输资源包含PRS，并处理包含PRS的资源集合以估计定时（例如，到达时间） 信息。

公开(公告)号：US08730925B2

公开(公告)日：2014-05-20

申请号：US12756777

申请日：2010-04-08

申请人： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

发明人： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

IPC分类号： H04J3/00 ,  H04L12/26 ,  H04J3/06 ,  H04J3/16 ,  H04W24/00

CPC分类号： G01S5/10 ,  G01S5/0205

摘要： A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

摘要翻译： 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号。 在接收到子帧时，无线通信设备基于与发送子帧的基站相关联的标识符来确定哪一组传输资源包含PRS，并处理包含PRS的资源集合以估计定时（例如，到达时间） 信息。

公开(公告)号：US08165586B2

公开(公告)日：2012-04-24

申请号：US13040090

申请日：2011-03-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04B7/212

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A base station, which includes a processor and a transmitter, communicates a reference signal to wireless communication devices in a wireless communication system. The processor encodes the reference signal into a first set of transmission resources, encodes other information into a second set of transmission resources, and multiplexes the two sets of transmission resources into a subframe, such that the first set of transmission resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of transmission resources is multiplexed into a second set of OFDM symbols. The transmitter transmits the subframe to the wireless devices. According to one embodiment, transmission resources for carrying the reference signal may be allocated according to a predetermined allocation, a semi-static allocation, a dynamic allocation, and/or an allocation based on higher layer signaling.

摘要翻译： 包括处理器和发射机的基站将参考信号传送到无线通信系统中的无线通信设备。 处理器将参考信号编码为第一组传输资源，将其他信息编码为第二组传输资源，并将两组传输资源复用为子帧，使得第一组传输资源至少被多路复用 基于与基站和第二组传输资源相关联的标识符的第一组正交频分复用（OFDM）符号的一部分被多路复用到第二组OFDM符号中。 发射机将子帧发送到无线设备。 根据一个实施例，可以根据预定分配，半静态分配，动态分配和/或基于较高层信令的分配来分配用于承载参考信号的传输资源。

公开(公告)号：US08396047B2

公开(公告)日：2013-03-12

申请号：US13040109

申请日：2011-03-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W40/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A wireless communication device receives at least a section of a subframe from a base station in a wireless communication system. The subframe includes transmission resources multiplexed onto subcarriers of orthogonal frequency division multiplexed (OFDM) symbols. A first set of OFDM symbols includes a reference signal and at least a second set of OFDM symbols includes information other than the reference signal (e.g., channel-coded data). The wireless device determines which OFDM symbols of the subframe constitute the first set of OFDM symbols based on an identifier associated with a base station that transmitted the subframe. The wireless device may then process the reference signal from the OFDM symbols that are determined to be the first set of OFDM symbols. The wireless device may also determine which OFDM symbols of the subframe constitute the second set of OFDM symbols and process non-reference signal information from OFDM symbols of the second set.

摘要翻译： 无线通信设备从无线通信系统中的基站接收子帧的至少一部分。 子帧包括复用到正交频分复用（OFDM）符号的子载波上的传输资源。 第一组OFDM符号包括参考信号，并且至少第二组OFDM符号包括除参考信号之外的信息（例如，信道编码数据）。 无线设备基于与发送子帧的基站相关联的标识符来确定子帧的哪些OFDM符号构成第一组OFDM符号。 无线设备然后可以处理来自被确定为第一组OFDM符号的OFDM符号的参考信号。 无线设备还可以确定子帧的哪些OFDM符号构成第二组OFDM符号，并且从第二组的OFDM符号处理非参考信号信息。

公开(公告)号：US07940740B2

公开(公告)日：2011-05-10

申请号：US12365166

申请日：2009-02-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04B7/208 ,  H04B7/216 ,  H04W4/00 ,  H04J3/00 ,  G01R31/08

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols, and transmitting the subframe. Upon receiving the subframe, a wireless device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

摘要翻译： 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号，并且发送子帧。 在接收到子帧时，无线设备基于与发送子帧的基站相关联的标识符来确定哪个传输资源集合包含PRS，并且处理包含PRS的资源集合以估计定时（例如，到达时间）信息 。

公开(公告)号：US20100195566A1

公开(公告)日：2010-08-05

申请号：US12365166

申请日：2009-02-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols, and transmitting the subframe. Upon receiving the subframe, a wireless device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

摘要翻译： 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号，并且发送子帧。 在接收到子帧时，无线设备基于与发送子帧的基站相关联的标识符来确定哪个传输资源集合包含PRS，并且处理包含PRS的资源集合以估计定时（例如，到达时间）信息 。

公开(公告)号：US20110149903A1

公开(公告)日：2011-06-23

申请号：US13040090

申请日：2011-03-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W72/04 ,  H04W4/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A base station, which includes a processor and a transmitter, communicates a reference signal to wireless communication devices in a wireless communication system. The processor encodes the reference signal into a first set of transmission resources, encodes other information into a second set of transmission resources, and multiplexes the two sets of transmission resources into a subframe, such that the first set of transmission resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of transmission resources is multiplexed into a second set of OFDM symbols. The transmitter transmits the subframe to the wireless devices. According to one embodiment, transmission resources for carrying the reference signal may be allocated according to a predetermined allocation, a semi-static allocation, a dynamic allocation, and/or an allocation based on higher layer signaling.

摘要翻译： 包括处理器和发射机的基站将参考信号传送到无线通信系统中的无线通信设备。 处理器将参考信号编码为第一组传输资源，将其他信息编码为第二组传输资源，并将两组传输资源复用为子帧，使得第一组传输资源至少多路复用 基于与基站和第二组传输资源相关联的标识符的第一组正交频分复用（OFDM）符号的一部分被多路复用到第二组OFDM符号中。 发射机将子帧发送到无线设备。 根据一个实施例，可以根据预定分配，半静态分配，动态分配和/或基于较高层信令的分配来分配用于承载参考信号的传输资源。

公开(公告)号：US20110149868A1

公开(公告)日：2011-06-23

申请号：US13040109

申请日：2011-03-03

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W40/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

摘要： A wireless communication device receives at least a section of a subframe from a base station in a wireless communication system. The subframe includes transmission resources multiplexed onto subcarriers of orthogonal frequency division multiplexed (OFDM) symbols. A first set of OFDM symbols includes a reference signal and at least a second set of OFDM symbols includes information other than the reference signal (e.g., channel-coded data). The wireless device determines which OFDM symbols of the subframe constitute the first set of OFDM symbols based on an identifier associated with a base station that transmitted the subframe. The wireless device may then process the reference signal from the OFDM symbols that are determined to be the first set of OFDM symbols. The wireless device may also determine which OFDM symbols of the subframe constitute the second set of OFDM symbols and process non-reference signal information from OFDM symbols of the second set.

摘要翻译： 无线通信设备从无线通信系统中的基站接收子帧的至少一部分。 子帧包括复用到正交频分复用（OFDM）符号的子载波上的传输资源。 第一组OFDM符号包括参考信号，并且至少第二组OFDM符号包括除参考信号之外的信息（例如，信道编码数据）。 无线设备基于与发送子帧的基站相关联的标识符来确定子帧的哪些OFDM符号构成第一组OFDM符号。 无线设备然后可以处理来自被确定为第一组OFDM符号的OFDM符号的参考信号。 无线设备还可以确定子帧的哪些OFDM符号构成第二组OFDM符号，并且从第二组的OFDM符号处理非参考信号信息。

公开(公告)号：US20100317343A1

公开(公告)日：2010-12-16

申请号：US12813221

申请日：2010-06-10

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Aljit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Aljit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W4/00

CPC分类号： H04W24/10 ,  G01S1/30 ,  G01S5/0236 ,  G01S5/10 ,  H04L5/005 ,  H04L5/0094 ,  H04L27/2656 ,  H04L43/0852 ,  H04W64/00 ,  H04W72/044 ,  Y02D30/30

摘要： A wireless terminal receives signaling information, pertaining to a reference signal transmission in at least one specifically designated sub frame, the signaling information including a list, the list including base station identities. The terminal determines, from at least one of the base station identities in the list, the time-frequency resources associated with a reference signal transmission intended for observed time difference of arrival (OTDOA) measurements from a transmitting base station associated with said one base station identity. The time of arrival of a transmission from the transmitting base station, relative to reference timing, is measured. The wireless terminal can receive a command from a serving cell to start performing inter-frequency OTDOA measurement on a frequency layer containing reference signals, the frequency layer distinct from the serving frequency layer, the serving frequency layer not containing positioning reference signals. The wireless terminal can perform OTDOA measurements subsequent to the reception of the command on a carrier frequency different from the serving cell carrier frequency. A base station transmitter can jointly schedule a reference signal transmission from a plurality of base station transmitters for the purpose of OTD estimation enhancement, and transmit identical reference signals from the plurality of base station transmitters, the reference signals being identical both in the signal sequence and time-frequency resources used for transmission.

摘要翻译： 无线终端接收属于至少一个具体指定的子帧中的参考信号传输的信令信息，所述信令信息包括列表，所述列表包括基站标识。 终端从列表中的至少一个基站标识确定与来自与所述一个基站相关联的发射基站的观测到达时间差（OTDOA）测量的参考信号传输相关联的时间 - 频率资源 身份 来自发射基站的传输相对于参考定时的到达时间被测量。 无线终端可以接收来自服务小区的命令，以在包含参考信号的频率层（不同于服务频率层的频率层，不包含定位参考信号的服务频率层）开始执行频率间OTDOA测量。 无线终端可以在与服务小区载波频率不同的载波频率上接收到该命令之后执行OTDOA测量。 为了OTD估计增强的目的，基站发射机可以共同安排来自多个基站发射机的参考信号传输，并且从多个基站发射机发送相同的参考信号，参考信号在信号序列和 用于传输的时频资源。

公开(公告)号：US09002354B2

公开(公告)日：2015-04-07

申请号：US12813221

申请日：2010-06-10

申请人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

发明人： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC分类号： H04W88/02 ,  H04L5/00 ,  G01S5/02 ,  G01S5/10 ,  H04W64/00 ,  G01S1/30 ,  H04L27/26

CPC分类号： H04W24/10 ,  G01S1/30 ,  G01S5/0236 ,  G01S5/10 ,  H04L5/005 ,  H04L5/0094 ,  H04L27/2656 ,  H04L43/0852 ,  H04W64/00 ,  H04W72/044 ,  Y02D30/30

摘要： A wireless terminal receives signaling information, pertaining to a reference signal transmission in at least one specifically designated sub frame, the signaling information including a list, the list including base station identities. The terminal determines, from at least one of the base station identities in the list, the time-frequency resources associated with a reference signal transmission intended for observed time difference of arrival (OTDOA) measurements from a transmitting base station associated with said one base station identity. The time of arrival of a transmission from the transmitting base station, relative to reference timing, is measured. The wireless terminal can receive a command from a serving cell to start performing inter-frequency OTDOA measurement on a frequency layer containing reference signals, the frequency layer distinct from the serving frequency layer, the serving frequency layer not containing positioning reference signals. The wireless terminal can perform OTDOA measurements subsequent to the reception of the command on a carrier frequency different from the serving cell carrier frequency. A base station transmitter can jointly schedule a reference signal transmission from a plurality of base station transmitters for the purpose of OTD estimation enhancement, and transmit identical reference signals from the plurality of base station transmitters, the reference signals being identical both in the signal sequence and time-frequency resources used for transmission.

摘要翻译： 无线终端接收属于至少一个具体指定的子帧中的参考信号传输的信令信息，所述信令信息包括列表，所述列表包括基站标识。 终端从列表中的至少一个基站标识确定与来自与所述一个基站相关联的发射基站的观测到达时间差（OTDOA）测量的参考信号传输相关联的时间 - 频率资源 身份 来自发射基站的传输相对于参考定时的到达时间被测量。 无线终端可以接收来自服务小区的命令，以在包含参考信号的频率层（不同于服务频率层的频率层，不包含定位参考信号的服务频率层）开始执行频率间OTDOA测量。 无线终端可以在与服务小区载波频率不同的载波频率上接收到该命令之后执行OTDOA测量。 为了OTD估计增强的目的，基站发射机可以共同安排来自多个基站发射机的参考信号传输，并且从多个基站发射机发送相同的参考信号，参考信号在信号序列和 用于传输的时频资源。