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1. 发明授权

US11343841B2 Uplink resource scheduling in multiple time instances 有权
公开(公告)号：US11343841B2
公开(公告)日：2022-05-24
申请号：US14423171
申请日：2014-12-15
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Håkan Andersson , Andreas Bergström , Stefan Parkvall , Qiang Zhang , Johan Furuskog , Lars Lindbom
IPC分类号： H04W72/14 , H04W76/27 , H04W72/04 , H04W72/12 , H04W74/08
摘要： It is disclosed a network node, a communication device and methods therein, for scheduling of uplink resources in multiple time instances and transmitting in accordance with the scheduled UL resources. By including an indicator in an UL grant comprising an UL resource allocation, the indicator indicates that, for at least one UL time instance of the multiple time instances, at least one UL resource is excluded from, or added to, the UL resource allocation of the UL grant.

2. 发明授权

US10536934B2 EPDCCH search space design 有权
公开(公告)号：US10536934B2
公开(公告)日：2020-01-14
申请号：US13989833
申请日：2013-01-17
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Mattias Frenne , Johan Furuskog , Havish Koorapaty , Daniel Larsson
IPC分类号： H04W72/04 , H04L5/00
摘要： Techniques for supporting both localized and frequency-distributed control channel messages in the same enhanced control channel region are disclosed. An example method begins with receiving (2010) a downlink signal comprising an enhanced control region consisting of at least two sets of physical resource block (PRB) pairs. The method continues with the forming (2020) of one or more distributed enhanced control-channel elements (eCCEs) from a first set of PRB pairs by aggregating physical layer building blocks from multiple PRB pairs to form each distributed eCCE. One or more localized eCCEs are formed (2030) from a second set of PRB pairs by aggregating physical layer building blocks such that each of the localized eCCEs is formed from physical layer building blocks from within a single PRB pair of the second set. Control channel message candidates are formed (2050) from the distributed eCCEs and localized eCCEs, respectively, and decoded (2060).

3. 发明授权

US10517112B2 Uplink subframe shortening in time-division duplex (TDD) systems 有权
公开(公告)号：US10517112B2
公开(公告)日：2019-12-24
申请号：US14407793
申请日：2013-12-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sahlin , Johan Furuskog , Stefan Parkvall , Qiang Zhang
IPC分类号： H04W72/14 , H04B7/26 , H04W72/04 , H04W72/12
摘要： A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.

4. 发明授权

US10469213B2 Network node, a wireless device and methods therein for handling automatic repeat requests (ARQ) feedback information 有权
公开(公告)号：US10469213B2
公开(公告)日：2019-11-05
申请号：US14440537
申请日：2015-01-21
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Andreas Bergström , Håkan Andersson , Johan Furuskog , Niclas Wiberg , Qiang Zhang
IPC分类号： H04L1/18 , H04L1/16 , H04W72/04 , H04W72/12
摘要： Embodiments herein relate to a method performed by a network node (110) in a wireless communications network (100) for handling Automatic Repeat reQuest, ARQ, feedback information from a wireless device (121) relating to downlink transmissions from the network node (110). The network node (110) obtains an indication of a downlink processing delay for the ARQ feedback information from the wireless device (121). Then, the network node (110) considers the ARQ feedback information relating to a downlink transmission from the wireless device (121) to be invalid when, according to the obtained indication of a downlink processing delay, the downlink transmission has not been processed by the wireless device (121). Embodiments of the network node (110) are also described.Furthermore, embodiments herein further relate to a wireless device (110) and method therein for enabling a network node (110) in a wireless communications network (100) to handle Automatic Repeat reQuest, ARQ, feedback information from the wireless device (121) relating to downlink transmissions from the network node (110).

5. 发明授权

US09954666B2 Downlink subframe shortening in time-division duplex (TDD) systems 有权
公开(公告)号：US09954666B2
公开(公告)日：2018-04-24
申请号：US14408642
申请日：2013-12-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sahlin , Qiang Zhang , Johan Furuskog , Stefan Parkvall
IPC分类号： H04L27/00 , H04W52/30 , H04J3/00 , H04L5/14 , H04B7/26 , H04L27/26 , H04W72/04 , H04W88/02 , H04W88/12 , H04L5/00
CPC分类号： H04L5/14 , H04B7/2615 , H04L5/0091 , H04L27/26 , H04L27/2602 , H04L27/2656 , H04W72/0446 , H04W88/02 , H04W88/12
摘要： A guard period for switching between uplink and downlink subframes is created by shortening a downlink subframe, i.e., by not transmitting during one or more symbol intervals at the end of the subframe. A grant message includes signaling indicating when a shortened subframe is being transmitted. An example method is implemented in a receiving node configured to receive data from a transmitting node in subframes having a predetermined number of symbol intervals. In an LTE system, this receiving node may be a UE, and the subframes are downlink subframes. This example method includes determining 1120 that a received subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, disregarding 1130 a last part of the received subframe by disregarding one or more symbols at the end of the received subframe when processing the received subframe.

6. 发明授权

US09942881B2 Uplink multi-TTI scheduling in TDD system 有权
公开(公告)号：US09942881B2
公开(公告)日：2018-04-10
申请号：US14212927
申请日：2014-03-14
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sahlin , Mattias Frenne , Johan Furuskog , Stefan Parkvall , Qiang Zhang
IPC分类号： H04W72/04 , H04W72/12 , H04L5/14
CPC分类号： H04W72/04 , H04L5/14 , H04W72/1289
摘要： Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a radio network node in a cellular communications network is provided. The method includes transmitting a first uplink grant that assigns radio resources for a multi-TTI uplink transmission, and transmitting a second uplink grant during a gap in the radio resources assigned by the first uplink grant. In one embodiment, by utilizing the gap to transmit the second uplink grant, uplink radio resources assigned for uplink transmission can be maximized, which is particularly beneficial in high uplink traffic conditions.

7. 发明授权

US09736823B2 Preamble sets matched to uplink transmission conditions 有权
公开(公告)号：US09736823B2
公开(公告)日：2017-08-15
申请号：US14401763
申请日：2014-06-13
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Johan Furuskog , Mattias Frenne , Qiang Zhang , Henrik Sahlin , Stefan Parkvall , Håkan Andersson
IPC分类号： H04W4/00 , H04W72/04 , H04L1/00 , H04W74/08
CPC分类号： H04W72/0413 , H04L1/0006 , H04W74/0833
摘要： The present disclosure relates to random access in wireless communication systems, and in particular to transmitting, receiving, and detecting preamble sequences. A method in a wireless device for transmitting a preamble sequence to a network node is disclosed. The method comprises configuring a number of preamble sequences into two or more preamble sets, wherein each preamble set is associated with at least one respective uplink transmission condition; determining a transmission condition of an uplink from the wireless device to the network node; and selecting one out of the two or more preamble sets based on the determined transmission condition to be a selected preamble set, and a preamble sequence from the selected preamble set to be a selected preamble sequence; as well as transmitting the selected preamble sequence on the uplink.

8. 发明申请

US20160278117A1 Uplink Subframe Shortening in Time-Division Duplex (TDD) Systems 有权
标题翻译：时分双工（TDD）系统的上行链路子帧缩短
公开(公告)号：US20160278117A1
公开(公告)日：2016-09-22
申请号：US14407793
申请日：2013-12-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Henrik Sahlin , Johan Furuskog , Stefan Parkvall , Qiang Zhang
IPC分类号： H04W72/14 , H04W72/04
摘要： A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.
摘要翻译：通过缩短上行链路子帧，即在子帧间隔开始时的一个或多个符号间隔期间不发送来创建用于在上行链路和下行链路子帧之间切换的保护周期。授权消息包括指示何时应该发送缩短的子帧的信令。在第一无线节点中实施示例性方法，该第一无线节点被配置为在以限定的子帧间隔发生并且具有预定数量的符号间隔的发送子帧中发送数据。该示例方法包括：相对于预定数量的符号间隔来确定（1620）发送子帧将被缩短，并且响应于该确定，通过在开始部分的开始部分期间不发送来发送（1630）发送子帧发送子帧的子帧间隔并且在子帧间隔的剩余时间期间发送。

9. 发明申请

US20160227575A1 RANDOM-ACCESS RESPONSE WITH ANALOG BEAMFORMING 有权
标题翻译：具有模拟波束的随机访问响应
公开(公告)号：US20160227575A1
公开(公告)日：2016-08-04
申请号：US14755895
申请日：2015-06-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Johan Furuskog , Henrik Sahlin , Andreas Bergström , Håkan Andersson , Niclas Wiberg , Qiang Zhang
IPC分类号： H04W72/14 , H04W72/12
CPC分类号： H04W72/14 , H04W16/28 , H04W72/1268 , H04W72/1294 , H04W74/0833
摘要： A system and method of Random-Access Response, RAR, messaging when a base station employs narrow beamforming. Multiple RAR messages are successively transmitted from the base station to a User Equipment, UE, before any response to a RAR message is received from the UE. Thus, despite any calibration mismatch between Uplink, UL, and Downlink, DL, beams in the beamformed system, a RAR message is not only received by the UE, but is received over the most-suitable DL beam for that UE. Each RAR message may contain a message-specific scheduling-delay indicator in the UL grant carried in the RAR message to provide an adjustable time delay for the UE's uplink transmission scheduled by the UL grant. Multiple RAR transmissions can schedule a single UL transmission at a specific time instance or different UL transmissions at different time intervals. The UE may report to the base station the best DL RAR transmission detected by the UE.
摘要翻译：当基站采用窄波束成形时，随机接入响应（RAR）消息的系统和方法。在从UE接收到对RAR消息的任何响应之前，多个RAR消息从基站连续发送到用户设备UE。因此，尽管波束形成系统中的上行链路，UL和下行链路DL之间的校准不匹配，RAR消息不仅被UE接收，而且在该UE的最适合的DL波束上被接收。每个RAR消息可以在RAR消息中携带的UL授权中包含消息特定的调度延迟指示符，以为由UL授权调度的UE的上行链路传输提供可调整的时间延迟。多个RAR传输可以在特定时间或不同时间间隔的不同的UL传输中调度单个UL传输。 UE可以向基站报告由UE检测到的最佳DL RAR传输。

10. 发明申请

US20160105817A1 METHOD FOR CSI FEEDBACK 审中-公开
标题翻译： CSI反馈方法
公开(公告)号：US20160105817A1
公开(公告)日：2016-04-14
申请号：US14441252
申请日：2015-03-11
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Mattias Frenne , Johan Furuskog , George Jongren , Mark Harrison
IPC分类号： H04W24/10 , H04W16/28 , H04W72/04 , H04B7/06
CPC分类号： H04W72/042 , H04B7/0626 , H04L1/0026 , H04L5/0048 , H04L5/0053
摘要： Embodiments of systems and methods for flexible Channel State Information (CSI) feedback in a cellular communications network are disclosed. In some embodiments, a base station configures a wireless device with a set of CSI-RS resources, dynamically configures a CSI-RS resource from the set of CSI-RS resources for measurement, and receives a CSI report from the wireless device determined from the CSI-RS resource dynamically configured for measurement. In this manner, the base station is enabled to dynamically configure and re-configure the CSI-RS resource(s) for measurement by the wireless device, which in turn provides flexible CSI feedback that is particularly well-suited for embodiments in which the base station transmits beamformed CSI-RS.
摘要翻译：公开了用于蜂窝通信网络中的灵活信道状态信息（CSI）反馈的系统和方法的实施例。在一些实施例中，基站使用一组CSI-RS资源配置无线设备，从用于测量的CSI-RS资源集中动态地配置CSI-RS资源，并从无线设备接收CSI报告 CSI-RS资源动态配置进行测量。以这种方式，基站能够动态地配置和重新配置用于由无线设备测量的CSI-RS资源，其又提供灵活的CSI反馈，其特别适合于其中基站站发射波束形成的CSI-RS。

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