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11. 发明授权

US09813935B2 State-driven secondary cell activation and deactivation 有权
公开(公告)号：US09813935B2
公开(公告)日：2017-11-07
申请号：US15208117
申请日：2016-07-12
申请人： Telefonaktiebolaget LM Ericsson (Publ)
发明人： Ping Yu , Christian Skärby
IPC分类号： H04W72/04 , H04W28/02 , H04W52/02 , H04W24/02 , H04L5/00 , H04W76/04
CPC分类号： H04W28/0221 , H04L5/0032 , H04L5/0098 , H04W24/02 , H04W28/0236 , H04W52/0206 , H04W72/0453 , Y02D70/1262 , Y02D70/24
摘要： A method and system for selectively activating and deactivating secondary cells in a wireless communication system are disclosed. According to one aspect, the invention provides a finite state machine having a plurality of states facilitating secondary cell activation and deactivation decisions. The states of the finite state machine include a deactivated state and an activated state. In the deactivated state, a secondary cell is deactivated and a media access control element, MAC CE, for deactivation is sent to the UE. The base station in the deactivated state is not allocating resources for maintaining transmission on the secondary cell. In the activated state, the secondary cell is active and a MAC CE for activation is sent to the UE. In the activated state, the base station is ready to transmit on the secondary cell.

12. 发明授权

US09485677B2 Determining hearability in a heterogenous communication network 有权
标题翻译：确定异构通信网络中的可听性
公开(公告)号：US09485677B2
公开(公告)日：2016-11-01
申请号：US13736678
申请日：2013-01-08
申请人： Telefonaktiebolaget LM Ericsson (Publ)
发明人： Leonard Lightstone , Christian Skärby
IPC分类号： H04W24/06 , H04L1/18 , H04W24/10 , H04W72/12 , H04W88/08 , H04L1/24
CPC分类号： H04W24/06 , H04L1/1812 , H04L1/24 , H04W24/10 , H04W72/1231 , H04W88/085
摘要： A method for determining whether a radio unit in a shared cell configuration is hearable by a user equipment is provided. Transmission of a probe message to the user equipment by the radio unit is caused. The probe message invokes a probe response from the user equipment if the radio unit is hearable by the user equipment on a downlink channel. The radio unit is hearable by the user equipment if the downlink channel performance between the radio unit and the user equipment meets a predetermined signal criteria. An uplink channel associated with the user equipment is monitored for the probe response from the user equipment after transmission of the probe message. Hearability data associated with the user equipment is determined based on the monitored uplink channel. The hearability data indicates whether the radio unit is hearable by the user equipment the downlink channel.
摘要翻译：提供一种确定共享小区配置中的无线单元是否可由用户设备听到的方法。导致由无线电单元向用户设备发送探测消息。如果无线电单元在下行链路信道上可被用户设备听到，则探测消息调用来自用户设备的探测响应。如果无线电单元和用户设备之间的下行链路信道性能满足预定的信号标准，则无线电单元可由用户设备听到。在发送探测消息之后，监视与用户设备相关联的上行链路信道用于来自用户设备的探测响应。基于所监视的上行链路信道确定与用户设备相关联的可靠性数据。可听性数据表示无线单元是否由用户设备听到下行链路信道。

13. 发明授权

US11848786B2 Method and status manager for controlling status reporting in wireless communication data 有权
公开(公告)号：US11848786B2
公开(公告)日：2023-12-19
申请号：US17608199
申请日：2019-05-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Christian Skärby , David Better , Johnny Karlsen
IPC分类号： H04L1/1829 , H04L1/1607
CPC分类号： H04L1/1848 , H04L1/1664 , H04L1/1685 , H04L1/1854
摘要： A method and a status manager for controlling status reporting from a data receiving node in a wireless communication of data with a data sending node. When detecting that the data receiving node should transmit a status report to the data sending node before a prescribed time limit expires, the data receiving node is triggered to transmit the status report either together with data if the data is pending for transmission from the data receiving node when the time left before the prescribed time limit is greater than a minimum duration, or alone if no data is pending when the time left before the time limit becomes shorter than the minimum duration.

14. 发明授权

US11751206B2 Method and apparatus for sending and receiving downlink control information 有权
公开(公告)号：US11751206B2
公开(公告)日：2023-09-05
申请号：US16918329
申请日：2020-07-01
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fredrik Huss , Daniel Chen Larsson , Christian Skärby
IPC分类号： H04W4/00 , H04W72/04 , H04L5/00 , H04W72/23
CPC分类号： H04W72/23 , H04L5/0053 , H04L5/001 , H04L5/0094
摘要： A user equipment, UE, is configured to receive downlink control information, DCI, transmitted to the UE by a primary cell in a wireless communication system. The UE comprises one or more processing circuits that shall assume that a DCI message which has a common payload size and the same first control channel element index, but different bit fields, in a common search space and a UE-specific search space is transmitted by the primary cell in the common search space or the UE-specific search space, based on radio resource control, RRC, configuration of the UE.

15. 发明申请

US20230100364A1 Random Access Handling of a UE 有权
公开(公告)号：US20230100364A1
公开(公告)日：2023-03-30
申请号：US17913748
申请日：2020-12-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Olof Liberg , Anders Westergren , Christian Skärby , Fredrik Huss , Sven Hellsten , Tomas Svadling
IPC分类号： H04W74/08 , H04W74/00 , H04W56/00
摘要： There is provided mechanisms for random access handling of a UE. A method is performed by a network node. The method comprises receiving, from the UE during a first RAO, a first RA preamble, whilst refraining from responding to the first RA preamble. The method comprises transmitting, towards the UE and without the network node first having received any retransmitted RA preamble from the UE, one RAR for each of N possible RA preambles, where each RAR comprises a TA command corresponding to a TA value estimated for the first RA preamble. The method comprises receiving, from the UE during a further RAO, a retransmitted RA preamble. The method comprises determining whether the TA value for the retransmitted RA preamble matches the TA value for the first RA preamble or not.

16. 发明授权

US11616622B2 Network node and method for managing transmission of cell reference symbols 有权
公开(公告)号：US11616622B2
公开(公告)日：2023-03-28
申请号：US16854525
申请日：2020-04-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Tomas Lagerqvist , Walter Müller , Christian Skärby
IPC分类号： H04L5/00 , H04L25/02 , H04W72/04
摘要： A method performed by a network node for managing transmission of Cell Reference Symbols, CRS, wherein the network node operates one or more cells and the network node is configured to transmit the CRS in a first bandwidth mode. When the network node has identified a cell which is not actively serving any UEs, also referred to as an empty cell, the network node applies a reduced CRS bandwidth mode in the first cell in relation to the first bandwidth mode. By applying a reduced CRS bandwidth mode in the empty cell, the overall interference of the CRS from the empty cell is reduced, thereby enhancing the performance in cells actively serving UEs.

17. 发明申请

US20200337076A1 Method and Radio Network Node for Scheduling Data in Control Region 审中-公开
公开(公告)号：US20200337076A1
公开(公告)日：2020-10-22
申请号：US16954604
申请日：2018-01-12
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Christian Skärby , Carola Faronius
IPC分类号： H04W72/12 , H04W24/08 , H04W72/04 , H04L1/00 , H04L5/00
摘要： Embodiments herein relate to a method performed by a radio network node (110) in a RAN for scheduling DL data for a UE (120) in a control region subset (140). The UE (120) has one or more control resource sets (CORESETs) (130) configured in a control region (150), in which CORESET (130) the UE (120) should monitor for (PDCCH). The method comprises determining to transmit DL data to the UE (120) in the control region subset, when the amount of DL data for the UE (120) is less or equal to a threshold. Embodiments herein further relate to a radio network node (110) in a RAN, for scheduling DL data for a UE (120) in a control region subset (140). The radio network node (110) is configured to perform the method for scheduling DL data in a control region subset (140).

18. 发明授权

US10554346B2 Allocating space for a plurality of control sets for HARQ 有权
公开(公告)号：US10554346B2
公开(公告)日：2020-02-04
申请号：US15763085
申请日：2015-09-25
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Anders Johansson , Karl Mann , Christian Skärby
IPC分类号： H04L1/18 , H04L1/16 , H04L5/00
摘要： A method for allocating space for a plurality of control sets for Hybrid Automatic Repeat Request (HARQ), wherein each control set comprising elements for carrying HARQ indicators. The method is performed in a network node and comprises determining a largest set size, in number of resources, of any one of the plurality of control sets; determining a target size, in number of resources, to be allocated for HARQ; allocating a HARQ space, wherein the HARQ space having a size, in number of resources, being a maximum of the largest set size and the target size; and spreading the plurality of control sets within the HARQ space. The HARQ space can be used in the uplink, for providing HARQ feedback on downlink information.

19. 发明申请

US20190053209A1 Method and Apparatus for Sending and Receiving Downlink Control Information 审中-公开
公开(公告)号：US20190053209A1
公开(公告)日：2019-02-14
申请号：US16160245
申请日：2018-10-15
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fredrik Huss , Daniel Larsson , Christian Skärby
IPC分类号： H04W72/04 , H04L5/00
摘要： A user equipment, UE, is configured to receive downlink control information, DCI, transmitted to the UE by a primary cell in a wireless communication system. The UE comprises one or more processing circuits that shall assume that a DCI message which has a common payload size and the same first control channel element index, but different bit fields, in a common search space and a UE-specific search space is transmitted by the primary cell in the common search space or the UE-specific search space, based on radio resource control, RRC, configuration of the UE.

20. 发明申请

US20190052396A1 METHOD AND APPARATUS FOR DETERMINING A VALUE FOR A TRANSMISSION PARAMETER 审中-公开
公开(公告)号：US20190052396A1
公开(公告)日：2019-02-14
申请号：US16078469
申请日：2016-03-24
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Christian Skärby
IPC分类号： H04L1/00 , H04L1/20 , H04L1/18
摘要： A method performed by a first network node for determining a value for a transmission parameter is provided. The first network node is operable in a communication network. The first network node performs a plurality of data transmissions to a second network node in the communication network. Each data transmission is performed with a value of the transmission parameter. The first network node receives at least two negative decoding feedbacks on the plurality of data transmissions from the second network node. The first network node computes a variance based on at least two values of the transmission parameter which resulted in the at least two negative decoding feedbacks. The first network node determines another value for the transmission parameter based on the variance. The other value of the transmission parameter is for an upcoming data transmission to the second network node.

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