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1. 发明授权

US10172151B2 Non-consecutive subframes in multi-TTI scheduling messages 有权
公开(公告)号：US10172151B2
公开(公告)日：2019-01-01
申请号：US14648754
申请日：2013-01-18
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： David Hammarwall , Daniel Larsson , Muhammad Imadur Rahman
IPC分类号： H04W72/04 , H04W72/12 , H04J1/00 , H04J3/12
摘要： The embodiments herein relate to method in a network node (301) for handling scheduling of a wireless device (305) in a communications network (300). The network node (301) is adapted to communicate with the wireless device (305) over a radio channel (310). The network node (301) dynamically allocates a set of non-consecutive subframes in which the network node (301) is to transmit data to the wireless device (305) or receive data from the wireless device (305). The network node (301) transmits a multi-Time Transmission Interval, TTI, scheduling message to the wireless device (305), which multi-TTI scheduling message comprises information indicating the dynamically allocated non-consecutive subframes.

2. 发明授权

US09913259B2 Methods, network nodes and user equipments in a wireless network for communicating an EPDCCH 有权
公开(公告)号：US09913259B2
公开(公告)日：2018-03-06
申请号：US13885520
申请日：2013-03-27
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Erik Eriksson , Mattias Frenne , David Hammarwall , George Jöngren
IPC分类号： H04W4/00 , H04W72/04 , H04L5/00
CPC分类号： H04W72/042 , H04L5/001 , H04L5/0048 , H04L5/0053 , H04L5/0094
摘要： A network node in a wireless communication network communicates an enhanced Physical Downlink Control Channel (ePDCCH) to a user equipment (UE). This begins with the transmission, to the UE, of a configuration message that indicates the mappings of eDPCCH onto resource elements for both a first eDPCCH set and a second eDPCCH set. The mapping for the first eDPCCH set avoids the use of resource elements already in use by a first type of signal (e.g., a Cell-Specific Reference Signal or CRS), whereas the mapping for the second eDPCCH set avoids the use of resource elements in use by a second type of signal. The choice of an eDPCCH set for transmitting data to a UE may then be dynamically made in order to avoid interference caused by the first or second types of signal.

3. 发明授权

US09660778B2 System and method for allocating transmission resources 有权
公开(公告)号：US09660778B2
公开(公告)日：2017-05-23
申请号：US14246972
申请日：2014-04-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： David Hammarwall , George Jöngren
IPC分类号： H04W4/00 , H04L5/00 , H04L1/00 , H04L1/16
CPC分类号： H04L5/0042 , H04L1/003 , H04L1/0079 , H04L1/1664 , H04L1/1671 , H04L5/0016 , H04L5/0044 , H04L5/0053
摘要： A method for wirelessly transmitting data and control information using a plurality of transmission layers includes determining a number of bits in user data codewords to be transmitted during a subframe and calculating a number of control vector symbols to allocate to control information during the subframe. The number of control vector symbols is calculated based on the number of bits in the user data codewords to be transmitted during the subframe and an estimate of the number of vector symbols onto which the user data codewords will be mapped. The estimate of the number of vector symbols depends on the number of control vector symbols to be allocated to control information. The control codewords may be mapped to the calculated number of control vector symbols and transmitting vector symbols carrying the user data codewords and the control codewords over the plurality of transmission layers during the subframe.

4. 发明申请

US20160227430A1 CONFIGURATION OF COORDINATED MULTIPOINT TRANSMISSION HYPOTHESES FOR CHANNEL STATE INFORMATION REPORTING 审中-公开
标题翻译：通道状态信息报告协调多点传输假设的配置
公开(公告)号：US20160227430A1
公开(公告)日：2016-08-04
申请号：US15094546
申请日：2016-04-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： David Hammarwall , George Jöngren , Svante Bergman
IPC分类号： H04W24/10 , H04B17/345 , H04L5/00
CPC分类号： H04W24/10 , H04B17/345 , H04L1/0026 , H04L5/0032 , H04L5/0035 , H04L5/0048 , H04L5/0091
摘要： A system and method for providing an eNodeB with the flexibility to configure a Channel State Information (CSI) report to match a specific Coordinated Multipoint (CoMP) transmission hypothesis, which is a candidate for a downlink transmission to a User Equipment (UE) is disclosed. A UE receives, from the eNodeB, a configuration message that specifies a CSI report. The CSI report is specified by a particular interference hypothesis and a particular desired signal hypothesis corresponding to data transmission over at least one effective channel characterized by a specific reference signal. The UE estimates interference according to the interference hypothesis, and/or estimates at least one effective channel by performing measurements on the specific reference signal, and determines a CSI report based on the interference estimation and on the estimated effective channel. The UE also transmits the CSI report to the eNodeB.
摘要翻译：公开了一种用于向eNodeB提供配置信道状态信息（CSI）报告以匹配作为向用户设备（UE）的下行链路传输的候选者的特定协调多点（CoMP）传输假设）的系统和方法，。 UE从eNodeB接收指定CSI报告的配置消息。 CSI报告由特定干扰假设和对应于通过特定参考信号表征的至少一个有效信道上的数据传输的特定期望信号假设来指定。 UE根据干扰假设估计干扰，和/或通过对特定参考信号执行测量来估计至少一个有效信道，并且基于干扰估计和估计的有效信道来确定CSI报告。 UE还向eNodeB发送CSI报告。

5. 发明申请

US20160197712A1 MAINTAINING PHASE COHERENCE FOR FREQUENCY OFFSET ESTIMATION 有权
标题翻译：维持频率偏移估计的相位相关
公开(公告)号：US20160197712A1
公开(公告)日：2016-07-07
申请号：US14912107
申请日：2013-08-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Stefano Sorrentino , David Hammarwall , George Jongren , Yu Yang
IPC分类号： H04L5/00 , H04W76/04 , H04L27/26
CPC分类号： H04L5/0051 , H04L27/2611 , H04L27/2657 , H04L27/2675 , H04W76/28
摘要： Techniques for facilitating and performing frequency-offset estimation are disclosed. The disclosed techniques include methods and apparatus for maintaining phase coherence among reference symbols on different transmission-time intervals (TTI) for an accurate estimation of frequency offset. Corresponding techniques utilize channel estimation or measurements of channel-related parameters based on multiple reference symbols belonging to different TTIs. An example method in a radio transceiver for facilitating frequency offset estimation at a remote receiver begins with determining that phase coherence between reference symbol transmissions in a first TTI and a second TTI is required. The radio transceiver selectively maintains phase coherence between reference symbol transmissions in the first and second TTIs, in response to said determining. The radio transceiver then transmits during at least part of a third TTI, following the second TTI, without maintaining phase coherence to the reference symbol transmissions in the first and second TTIs.
摘要翻译：公开了用于促进和执行频偏估计的技术。所公开的技术包括用于在不同传输时间间隔（TTI）上维持参考符号之间的相位相干性以便精确估计频率偏移的方法和装置。相应的技术基于属于不同TTI的多个参考符号来利用信道估计或信道相关参数的测量。用于促进远程接收机的频率偏移估计的无线电收发器中的示例性方法开始于确定需要在第一TTI和第二TTI中的参考符号传输之间的相位相干性。响应于所述确定，无线电收发器选择性地维持第一和第二TTI中的参考符号传输之间的相位相干性。无线电收发器然后在第二TTI之后的第三TTI的至少一部分期间发送，而不保持与第一和第二TTI中的参考符号传输的相位一致性。

6. 发明申请

US20150264680A1 System and Method for Allocating Transmission Resources Based on a Transmission Rank 有权
标题翻译：基于传输等级分配传输资源的系统和方法
公开(公告)号：US20150264680A1
公开(公告)日：2015-09-17
申请号：US14721499
申请日：2015-05-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： David Hammarwall , George Jöngren , Bo Göransson
IPC分类号： H04W72/04 , H04W72/02 , H04L5/00
CPC分类号： H04W72/0413 , H04L1/003 , H04L1/0079 , H04L1/0618 , H04L1/1664 , H04L1/1671 , H04L5/0016 , H04L5/0026 , H04L5/0044 , H04L5/0046 , H04L5/0053 , H04L25/03929 , H04W72/02 , H04W72/0446
摘要： A method for wirelessly transmitting data using a plurality of transmission layers includes estimating a number of data vector symbols to be allocated to one or more user data codewords during the subframe and determining a number of bits in the one or more user data codewords. The method also includes calculating a nominal number of control vector symbols to allocate to control information based, at least in part, on the estimated number of data vector symbols and the determined number of bits in the one or more user data codewords. Additionally, the method includes determining an offset value based, at least in part, on a number of layers over which the wireless terminal will be transmitting during the subframe and calculating a final number of control vector symbols by multiplying the nominal number of control vector symbols and the offset value. The method also includes mapping one or more control codewords to the final number of control vector symbols and transmitting vector symbols carrying the one or more user data codewords and the one or more control codewords over the plurality of transmission layers during the subframe.
摘要翻译：使用多个传输层无线传输数据的方法包括估计在子帧期间分配给一个或多个用户数据码字的数据向量符号的数量，并确定一个或多个用户数据码字中的位数。该方法还包括至少部分地基于所估计的数据向量符号数和所确定的一个或多个用户数据码字中的位数来计算控制向量符号的标称数量以分配给控制信息。另外，该方法包括至少部分地基于无线终端将在子帧期间将要发射的层数来确定偏移值，并通过将控制向量符号的标称数量乘以来计算最终数量的控制向量符号和偏移值。该方法还包括将一个或多个控制码字映射到最终数量的控制向量符号，以及在子帧期间在多个传输层上传送承载一个或多个用户数据码字和一个或多个控制码字的矢量符号。

7. 发明授权

US09078263B2 System and method for allocating transmission resources 有权
标题翻译：用于分配传输资源的系统和方法
公开(公告)号：US09078263B2
公开(公告)日：2015-07-07
申请号：US14104347
申请日：2013-12-12
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： David Hammarwall , George Jöngren
IPC分类号： H04W72/04 , H04L1/00 , H04L5/00 , H04L1/16
CPC分类号： H04W72/0446 , H04L1/003 , H04L1/0079 , H04L1/1664 , H04L1/1671 , H04L5/0016 , H04L5/0044 , H04L5/0053 , H04L5/0092 , H04W72/0466
摘要： A method for wirelessly transmitting data using a plurality of transmission layers includes estimating a number of vector symbols to be allocated to transmission of user data codewords during a subframe and determining a number of bits in a plurality of user data codewords to be transmitted during the subframe. The method also includes calculating a number of control vector symbols to allocate to control information based at least in part on the estimated number of vector symbols and the determined number of bits. Additionally, the method includes mapping control codewords to the calculated number of control vector symbols and transmitting vector symbols carrying the user data codewords and the control codewords over the plurality of transmission layers during the subframe.
摘要翻译：一种用于使用多个传输层无线传输数据的方法包括估计在子帧期间分配给用户数据码字的传输的向量符号的数量，并且确定在子帧期间要发送的多个用户数据码字中的比特数。该方法还包括至少部分地基于所估计的向量符号数和所确定的比特数来计算多个控制向量符号以分配给控制信息。此外，该方法包括在子帧期间将控制码字映射到所计算的控制向量符号的数量，以及在多个传输层上传送携带用户数据码字和控制码字的向量符号。

8. 发明申请

US20140112248A1 Load-Invariant Configuration of Interference Measurement Resources 有权
标题翻译：干扰测量资源的负载不变配置
公开(公告)号：US20140112248A1
公开(公告)日：2014-04-24
申请号：US13883706
申请日：2013-01-14
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Svante Bergman , David Hammarwall , George Jöngren , Niklas Wernersson
IPC分类号： H04W28/18
CPC分类号： H04W28/18 , H04B7/024 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/066 , H04B17/24
摘要： According to one aspect of this disclosure, the configuration of which Interference Measurement Resources, “IMRs”, a given user equipment, “UE”, should measure for Channel State Information, “CSI”, reporting is made more or less invariant to dynamic traffic variations affecting the set of Coordinated Multi-Point, “CoMP”, transmission points used for serving the UE, or to the use of dynamic blanking for those transmission points. These goals are achieved at least in part by configuring one or more of the transmission points to follow a first rule embodying a negative logic. According to the first rule, the transmission point transmits on a given IMR if it has been deemed as being not likely to transmit data at a time relevant to the IMR, and, conversely, to not transmit the IMR if it has been deemed as being likely to transmit data at a time relevant to the IMR.
摘要翻译：根据本公开的一个方面，给定用户设备“UE”的干扰测量资源“IMR”的配置应该针对信道状态信息“CSI”来测量，报告或多或少对动态业务不变影响协调多点，“CoMP”集合，用于服务于UE的传输点，或者对于这些传输点使用动态消隐的变化。这些目标至少部分地通过配置一个或多个传输点遵循体现负逻辑的第一规则来实现。根据第一规则，如果在与IMR相关的时间被认为不可能发送数据，则传输点在给定的IMR上发送，并且相反地，如果被认为是可能在与IMR相关的时间传输数据。

9. 发明申请

US20140092876A1 SYSTEM AND METHOD FOR ALLOCATING TRANSMISSION RESOURCES 审中-公开
标题翻译：用于分配传输资源的系统和方法
公开(公告)号：US20140092876A1
公开(公告)日：2014-04-03
申请号：US14104234
申请日：2013-12-12
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： David Hammarwall , George Jöngren
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04L1/003 , H04L1/0079 , H04L1/1664 , H04L1/1671 , H04W72/0466
摘要： A method for wirelessly transmitting data and control information using a plurality of transmission layers includes determining a number of bits in one or more user data codewords to be transmitted during a subframe and calculating, for each of M control signals to be transmitted during the subframe, a value (Q′), based at least in part, on the number of bits in the one or more user data codewords, and an estimated number of user data vector symbols onto which the one or more user data codewords will be mapped. The estimate of the number of user data vector symbols for a particular one of the M control signals depends, at least in part, on a number of control vector symbols to be allocated to one or more others of the M control signals. The method also includes determining a number of control vector symbols onto which to map each of the M control signals based on a respective value Q′ calculated for that control signal, mapping the control signals for that control signal, and transmitting the control vector symbols.
摘要翻译：一种使用多个发送层无线发送数据和控制信息的方法包括：确定在子帧期间要发送的一个或多个用户数据码字中的比特数，并且针对在子帧期间发送的M个控制信号，至少部分地基于一个或多个用户数据码字中的比特数的值（Q'）和一个或多个用户数据码字将被映射到的用户数据向量符号的估计数目。用于M个控制信号中的特定一个的用户数据向量符号的数量的估计至少部分地取决于要分配给M个控制信号中的一个或多个其他控制信号的多个控制向量符号。该方法还包括基于针对该控制信号计算的相应值Q'来确定控制向量符号的数量以映射每个M个控制信号，映射该控制信号的控制信号，以及发送控制向量符号。

10. 发明授权

US08687678B2 Parameterized codebook with subset restrictions for use with precoding MIMO transmissions 有权
标题翻译：具有子帧限制的参数化码本，用于预编码MIMO传输
公开(公告)号：US08687678B2
公开(公告)日：2014-04-01
申请号：US13903442
申请日：2013-05-28
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： David Hammarwall , George Jöngren
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04B7/0456 , H04B7/0465 , H04B7/0469 , H04B7/0478 , H04B7/0634 , H04B7/0639 , H04B7/0647 , H04B7/065 , H04B7/10 , H04L5/0044 , H04W72/0413
摘要： One aspect of the teachings herein relates to signaling codebook restrictions, to restrict the precoder recommendations being fed back from a remote transceiver, so that precoder selections made by the remote receiver are restricted to permitted subsets of overall precoders within a defined set of overall precoders, or to permitted subsets within larger sets of conversion precoders and tuning precoders, for the case where the overall precoders are represented in factorized form by conversion and tuning precoders. As a non-limiting example, these teachings advantageously provide for precoder restrictions in LTE or LTE-Advanced networks, where ongoing development targets the use of larger, richer sets of precoders, and where the disclosed mechanisms for determining, signaling, and responding to subset restrictions provide significant operational advantages.
摘要翻译：本文的教导的一个方面涉及信令码本限制，以限制从远程收发器反馈的预编码器建议，使得由远程接收机进行的预编码器选择被限制在所定义的整个预编码器集合内的整体预编码器的允许子集，或者在通过转换和调谐预编码器以分解形式表示整体预编码器的情况下，在更大的转换预编码器和调谐预编码器集合内允许的子集。作为非限制性示例，这些教导有利地提供LTE或LTE-Advanced网络中的预编码器限制，其中正在进行的开发旨在使用更大，更丰富的预编码器集合，并且其中所公开的用于确定，发信号和响应子集的机制限制提供了显着的操作优势。

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