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1. 发明授权

US11304153B2 Network node and method for managing power of Cell Reference Symbols 有权
公开(公告)号：US11304153B2
公开(公告)日：2022-04-12
申请号：US16936811
申请日：2020-07-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Tomas Lagerqvist , Christian Skärby , Walter Müller
IPC分类号： H04W52/32 , H04W52/14 , H04W52/28 , H04W52/34 , H04W76/27 , H04L5/00 , H04W88/02 , H04W92/20
摘要： A method performed by a network node for managing power 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 power mode. When the network node identifies a first cell which is not actively serving any UEs, which cell is also referred to as an empty cell, the network node reduces the power of the CRS in the first cell in relation to the first power mode. By reducing the power of the CRS, the overall interference of the CRS from the empty cell is reduced, thereby enhancing the performance in cells actively serving UEs.

2. 发明授权

US10764839B2 Network node and method for managing power of cell reference symbols 有权
公开(公告)号：US10764839B2
公开(公告)日：2020-09-01
申请号：US15507528
申请日：2014-08-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Tomas Lagerqvist , Christian Skärby , Walter Müller
IPC分类号： H04W52/32 , H04W52/14 , H04W52/28 , H04W52/34 , H04W76/27 , H04L5/00 , H04W88/02 , H04W92/20
摘要： A method performed by a network node for managing power 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 power mode. When the network node identifies a first cell which is not actively serving any UEs, which cell is also referred to as an empty cell, the network node reduces the power of the CRS in the first cell in relation to the first power mode. By reducing the power of the CRS, the overall interference of the CRS from the empty cell is reduced, thereby enhancing the performance in cells actively serving UEs.

3. 发明授权

US10673590B2 Network node and method for managing transmission of cell reference symbols 审中-公开
公开(公告)号：US10673590B2
公开(公告)日：2020-06-02
申请号：US16253596
申请日：2019-01-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Tomas Lagerqvist , Walter Müller , Christian Skärby
IPC分类号： H04L5/00 , H04W72/04 , H04L25/02
摘要： A method performed by a network node for managing transmission of Cell Reference Symbols, CRS, wherein the network node 110 operates one or more cells and the network node 110 is configured to transmit the CRS in a first bandwidth mode. When the network node 110 has identified a cell 130 which is not actively serving any UEs 120, also referred to as an empty cell, the network node 110 applies (302) a reduced CRS bandwidth mode in the first cell 130 in relation to the first bandwidth mode. By applying (302) a reduced CRS bandwidth mode in the empty cell 130, the overall interference of the CRS from the empty cell 130 is reduced, thereby enhancing the performance in cells actively serving UEs 120.

4. 发明授权

US10313080B2 Increasing robustness of handover signalling by increasing the aggregation level of control channel elements 有权
公开(公告)号：US10313080B2
公开(公告)日：2019-06-04
申请号：US15516913
申请日：2014-10-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Christian Skärby , Leo Hedlund , Mikael Jonsson
IPC分类号： H04L5/00 , H04W36/08
摘要： A method performed by a network node 110, for improving the performance of a handover of a user equipment (UE) 120, wherein the network node 110 serves a first cell 130 comprising one or more UEs 120. When the network node 110 has detected that a Signaling Radio Bearer (SRB) is determined to be scheduled for a UE 120 in handover from the first cell 130 to a second cell 131, the network node 110 increases the Control Channel Element (CCE) aggregation level in an OFDM-subframe to be sent to the UE 120 in a TTI related to the handover. By increasing the CCE aggregation level during a handover procedure, the effective coding rate of the PDCCH is increased, which leads to a more robust coding and reliability. Thereby the number of unsuccessful handovers and lost service is effectively reduced.

5. 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.

6. 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。

7. 发明授权

US11601894B2 Network node and method for managing power of cell reference symbols 有权
公开(公告)号：US11601894B2
公开(公告)日：2023-03-07
申请号：US17687287
申请日：2022-03-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Tomas Lagerqvist , Christian Skärby , Walter Müller
IPC分类号： H04W52/32 , H04W52/14 , H04W52/28 , H04W52/34 , H04W76/27 , H04L5/00 , H04W88/02 , H04W92/20
摘要： A method performed by a network node for managing power 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 power mode. When the network node identifies a first cell which is not actively serving any UEs, which cell is also referred to as an empty cell, the network node reduces the power of the CRS in the first cell in relation to the first power mode. By reducing the power of the CRS, the overall interference of the CRS from the empty cell is reduced, thereby enhancing the performance in cells actively serving UEs.

8. 发明授权

US10757695B2 Method and apparatus for sending and receiving downlink control information 有权
公开(公告)号：US10757695B2
公开(公告)日：2020-08-25
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： H04W4/00 , 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.

9. 发明授权

US10212722B2 Volume-deadline scheduling 有权
公开(公告)号：US10212722B2
公开(公告)日：2019-02-19
申请号：US15310581
申请日：2014-06-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Magnus Hurd , Christian Skärby
IPC分类号： H04W72/12 , H04W28/02 , H04L12/875 , H04L12/865
摘要： A method of operating a radio access node for a wireless communications network includes the steps of obtaining a total volume of data content for a transfer of the data content between the radio access node and a wireless communications device, obtaining a transfer deadline for the transfer of the data content, calculating a prioritization metric for the transfer of the data content based on the total volume of the data content and the transfer deadline, and scheduling one or more radio resources for the transfer of the data content based on the prioritization metric.

10. 发明授权

US10211888B2 Network node and a method therein for performing CoMP reception of a transmission from a wireless device 有权
公开(公告)号：US10211888B2
公开(公告)日：2019-02-19
申请号：US15308120
申请日：2014-07-09
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Anders Christensson , Christian Skärby
IPC分类号： H04B7/024 , H04B7/155 , H04L5/00 , H04L12/26 , H04W28/02 , H04W72/00 , H04W92/20
摘要： A network node and a method therein for CoMP reception of a transmission from a wireless device are provided. The method comprises determining (110) an available backhaul capacity of a reception point of the serving RBS and of at least one potential reception point of respective further RBS(s); and determining (120) a received signal quality of a received signal, transmitted from the wireless device, received by the reception point of the serving RBS and received by the at least one potential reception point of the respective further RBS(s). The method comprises determining (130) cooperating reception of the transmission from the wireless device and determining a TBS for the transmission from the wireless device based on the determined available backhaul capacity and received signal quality; and notifying (140) the respective RBS(s) of the determined cooperation reception point(s) about their participation in the CoMP reception.

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