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1. 发明授权

US09888406B2 Reference signal density adaptation 有权
公开(公告)号：US09888406B2
公开(公告)日：2018-02-06
申请号：US14494314
申请日：2014-09-23
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Per Bergström , Svante Bergman , George Jöngren
IPC分类号： H04L27/26 , H04W28/02 , H04B7/0404 , H04L5/00 , H04W40/16
CPC分类号： H04W28/0263 , H04B7/0404 , H04L5/0014 , H04L5/005 , H04L5/0051 , H04L5/006 , H04L27/2646 , H04L27/2666 , H04W40/16
摘要： According to some embodiments, a method of adapting reference signals of a wireless network comprises establishing a first wireless connection with a first user equipment. The first wireless connection is associated with one or more references signals and each of the one or more reference signals is associated with one or more antenna ports. The method further comprises mapping one of the one or more reference signals associated with one or more antenna ports to at least two antenna port reference signal resources (APRSR) for the first user equipment, wherein the APRSR comprises a pair of consecutive time-frequency resource elements of a radio subframe of the first wireless connection.

2. 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。

3. 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。

4. 发明授权

US09560540B2 Method and arrangement in a wireless communication system 有权
标题翻译：无线通信系统中的方法和布置
公开(公告)号：US09560540B2
公开(公告)日：2017-01-31
申请号：US14398757
申请日：2013-05-16
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： David Hammarwall , Svante Bergman , Jonas Fröberg Olsson , George Jöngren
IPC分类号： H04W24/10 , H04B17/382 , H04W72/04 , H04B7/02 , H04B17/345
CPC分类号： H04W24/10 , H04B7/024 , H04B17/345 , H04B17/382 , H04W72/04
摘要： The invention relates to a method and an arrangement in a transmitting node (560) for enabling a receiving node (540) to perform measurements on interference caused by transmissions from at least one transmission point (510, 520, 530) controlled by the transmitting node (560) on receptions at the receiving node (540). The transmitting and receiving nodes (560, 540) are comprised in a wireless communications system (500, 600, 700). The transmitting node determines (910) an interference measurement resource, IMR, comprising a set of Time-Frequency Resource Elements, TFREs, upon which the transmitting node is expected to transmit interference. The transmitting node then transmits (930) at least one interfering signal on said IMR as said interference. The at least one interfering signal comprises at least one of a desired signal, that is expected to be decoded or coherently measured upon by the receiving node (540) or another node (550) served by said transmitting node (560), and another signal, that is not expected to be decoded or coherently measured upon by any node (540, 550) served by said transmitting node (560). The desired signal is transmitted in place of the another signal as said at least one interfering signal on one or more TFREs of the IMR when the at least one transmission point is to transmit the desired signal to the receiving node (540) or to the another node (550). The another signal is transmitted on TFREs of said IMR where no desired signal is transmitted and the another signal is muted on TFRE's of said IMR where the desired signal is transmitted.
摘要翻译：本发明涉及发射节点（560）中的方法和装置，用于使得接收节点（540）能够执行由由发射节点控制的至少一个传输点（510,520,530）的传输引起的干扰的测量（560）接收节点（540）上的接收。发射和接收节点（560,540）包括在无线通信系统（500,600,700）中。发射节点确定（910）干扰测量资源IMR，其包括一组时间 - 频率资源元素TFRE，传输节点预期传输干扰。发射节点然后在所述IMR上发送（930）至少一个干扰信号作为所述干扰。所述至少一个干扰信号包括由所述发送节点（560）服务的所述接收节点（540）或另一节点（550）进行解码或相干测量的期望信号中的至少一个，以及另一个信号，不期望由所述发送节点（560）服务的任何节点（540,550）进行解码或相干测量。当所述至少一个传输点将所需信号发送到所述接收节点（540）或所述另一信号时，将所述信号作为所述IMR的一个或多个TFRE上的所述至少一个干扰信号来代替所述另一个信号节点（550）。在所述IMR的TFRE上发送另一个信号，其中不需要发送所需的信号，并且在传输所需信号的所述IMR的TFRE上使另一个信号静音。

5. 发明授权

US10313912B2 Configuration of coordinated multipoint transmission hypotheses for channel state information reporting 有权
公开(公告)号：US10313912B2
公开(公告)日：2019-06-04
申请号：US15940851
申请日：2018-03-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： David Hammarwall , George Jöngren , Svante Bergman
IPC分类号： H04W24/10 , H04L1/00 , H04L5/00 , H04B17/345
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.

6. 发明授权

US10020857B2 Precoding a transmission from an antenna array that includes co-polarized antenna elements aligned in a given spatial dimension 有权
公开(公告)号：US10020857B2
公开(公告)日：2018-07-10
申请号：US14902749
申请日：2015-09-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Niklas Wernersson , Svante Bergman , Sebastian Faxér
IPC分类号： H04R7/02 , H04L1/02 , H04B7/0456
CPC分类号： H04B7/0469 , H04B7/0478 , H04B7/065
摘要： A transmitting radio node (10) precodes a transmission from an antenna array (12) to a receiving radio node (50). The array (12) includes co-polarized antenna elements (14) aligned in a given spatial dimension of the array (12). The transmitting radio node (10) precodes the transmission from different subarrays (34a, 34b) of the antenna elements (14) using respective coarse-granularity precoders that are factorizable from a multi-granular precoder targeting the given spatial dimension of the array (12) at different granularities, so as to virtualize the subarrays (34a, 34b) as different auxiliary elements (38a, 38b). The transmitting radio node (10) also precode the transmission from the different auxiliary elements (38a, 38b) using one or more finer-granularity precoders that are also factorizable from the multi-granular precoder. In this case, the coarse granularity precoders and the one or more finer-granularity precoders are represented within one or more codebooks (26) used for said precoding.

7. 发明授权

US09935695B2 Precoding a transmission from a two-dimensional antenna array using a partially reshaped codebook 有权
公开(公告)号：US09935695B2
公开(公告)日：2018-04-03
申请号：US14895614
申请日：2015-11-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Niklas Wernersson , Svante Bergman
IPC分类号： H04B7/0456 , H04B7/06 , H04L5/00
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0626 , H04B7/0639 , H04L5/0048
摘要： A transmitting radio node (10) precodes a transmission from an antenna array, which includes antenna elements arranged along at least two axes, using a main codebook which is representable as a Kronecker product of a first codebook and a second codebook, where the first codebook comprises predetermined sub-precoders and the second codebook comprises configurable sub-precoders. A receiving radio node (20) may benefit from adaptive beamforming made possible by the configurability of the main codebook, while still using a stable format, which remains valid also after reconfiguration, for the exchange of reference signals and corresponding feedback information.

8. 发明申请

US20170126294A1 Precoding a Transmission From a Two-Dimensional Antenna Array Using a Partially Reshaped Codebook 有权
公开(公告)号：US20170126294A1
公开(公告)日：2017-05-04
申请号：US14895614
申请日：2015-11-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Niklas Wernersson , Svante Bergman
IPC分类号： H04B7/04 , H04L5/00 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0626 , H04B7/0639 , H04L5/0048
摘要： A transmitting radio node (10) precodes a transmission from an antenna array, which includes antenna elements arranged along at least two axes, using a main codebook which is representable as a Kronecker product of a first codebook and a second codebook, where the first code-book comprises predetermined sub-precoders and the second codebook comprises configurable sub-precoders. A receiving radio node (20) may benefit from adaptive beamforming made possible by the configurability of the main codebook, while still using a stable format, which remains valid also after reconfiguration, for the exchange of reference signals and corresponding feedback information,

9. 发明授权

US09143987B2 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：US09143987B2
公开(公告)日：2015-09-22
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： G01R31/08 , H04W28/18 , H04B7/02 , H04B17/24 , H04B7/06
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。

10. 发明授权

US09961582B2 Configuration of coordinated multipoint transmission hypotheses for channel state information reporting 有权
公开(公告)号：US09961582B2
公开(公告)日：2018-05-01
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 , H04L1/00 , H04L5/00 , H04B17/345
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.

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