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    • 14. 发明授权
    • Forward-flyback topology switched mode power supply
    • 正向回扫拓扑开关电源
    • US09559601B2
    • 2017-01-31
    • US14235931
    • 2013-02-28
    • Telefonaktiebolaget L M Ericsson (publ)
    • Oscar PerssonMikael AppelbergMagnus Karlsson
    • H02M3/335
    • H02M3/33546H02M1/08H02M3/33538H02M3/33576H02M3/33592H03K2017/307Y02B70/1475
    • A switched mode power supply (400), comprising a transformer (410) having a primary winding (410-1), a transformer core (410-3) configured to store energy transferred thereto from the primary winding (410-1) during operation, and a secondary winding (410-2) having a first terminal (T1) and a second terminal (T2). The switched mode power supply also has a primary side circuit (Q1, Q2, C1) arranged to generate voltage pulses and thereby to drive the primary winding (410-1) of the transformer (410), and a secondary side circuit comprising a rectification circuit connected to the secondary winding (410-2) at the first and second terminals (T1, T2). The rectification circuit is arranged such that during a forward phase of operation of the switched mode power supply, in which the primary winding (410-1) is driven by the primary side circuit to magnetize, and store energy in, the transformer core (410-3), a current induced to flow in the secondary winding (410-2) from the second terminal (T2) to the first terminal (T1) is output by the rectification circuit. The rectification circuit is further arranged such that during a fly-back phase of operation of the switched mode power supply, in which the magnetization of the transformer core (410-3) is reset, a current induced to flow in the secondary winding from the first terminal (T1) to the second terminal (T2) of the secondary winding (410-2) is output by the rectification circuit so that energy stored in the transformer (410) during the forward phase of operation is output by the rectification circuit.
    • 一种开关模式电源(400),包括具有初级绕组(410-1)的变压器(410),被配置为在操作期间存储从初级绕组(410-1)传递到其上的能量的变压器铁心(410-3) 以及具有第一端子(T1)和第二端子(T2)的次级绕组(410-2)。 开关模式电源还具有被配置为产生电压脉冲从而驱动变压器(410)的初级绕组(410-1)的初级侧电路(Q1,Q2,C1),以及辅助侧电路,其包括整流 电路连接到第一和第二端子(T1,T2)处的次级绕组(410-2)。 整流电路被布置成使得在开关模式电源的正向工作相位期间,初级绕组(410-1)被初级侧电路驱动以磁化并将能量存储在变压器铁心(410)中 -3)时,通过整流电路输出从次级绕组(410-2)感应到从第二端子(T2)流向第一端子(T1)的电流。 整流电路进一步被布置成使得在其中复位变压器铁芯(410-3)的磁化的开关模式电源的操作的回火阶段期间,引起在次级绕组中从 由整流电路输出到次级绕组(410-2)的第二端子(T2)的第一端子(T1),从而在正向运行期间存储在变压器(410)中的能量由整流电路输出。
    • 18. 发明授权
    • Method and radio node for enabling use of high order modulation in a radio communication with a user equipment
    • 用于在与用户设备的无线电通信中使能高阶调制的方法和无线电节点
    • US09509440B2
    • 2016-11-29
    • US14390904
    • 2014-06-26
    • Telefonaktiebolaget L M Ericsson (publ)
    • David HammarwallMeng Wang
    • H04L1/00H04W72/08
    • H04L1/0005H04L1/0003H04L1/0009H04L1/0011H04L1/0016H04L1/0025H04L1/0026H04W72/082H04W88/02Y02D50/10
    • A method and radio node (500) for enabling higher-order modulation in a radio communication with a first UE (502). A first table configuration comprises at least one of a first Modulation and Coding Scheme, MCS, table and a first Channel Quality Indicator, CQI, table which tables support a certain maximum modulation order. When the radio node (500) detects that a modulation order higher than the maximum modulation order of the first table configuration is potentially possible to use in the radio communication, the radio node (500) instructs the first UE (502) to apply a second table configuration which comprises at least one of a second MCS table and a second CQI table which second tables support the higher modulation order. At least one entry for at least one modulation order in the tables of the first table configuration is maintained in the tables of the second table configuration as a fall-back in case it is desirable to use the at least one modulation order of the first table configuration when the second table configuration is applied. Thereby, a higher data rate can be achieved in the radio communication.
    • 一种用于在与第一UE(502)的无线电通信中实现高阶调制的方法和无线电节点(500)。 第一表配置包括第一调制和编码方案,MCS,表和第一信道质量指示符(CQI)表中的至少一个表,哪些表支持一定的最大调制阶数。 当无线电节点(500)检测到高于第一表配置的最大调制阶数的调制阶数潜在地可能在无线电通信中使用时,无线电节点(500)指示第一UE(502)应用第二 表配置,其包括第二MCS表和第二表中的至少一个,其中第二表支持更高的调制阶数。 在第一表配置的表中的至少一个调制阶数的至少一个条目在第二表配置的表中被保留为倒退,在需要使用第一表的至少一个调制阶 当应用第二表配置时的配置。 由此,能够在无线通信中实现更高的数据速率。