Over the air acquisition of radio frequency impairment information

    公开(公告)号:US10348341B2

    公开(公告)日:2019-07-09

    申请号:US15940258

    申请日:2018-03-29

    Abstract: Systems and methods for providing indications about the TX RF non-linear impairments are disclosed. In accordance with some implementations, a first device (UE or base station) estimates EVM indications for the signal and determines if the EVM indications is above a threshold. The first device may transmit the estimated TX non-linearity indications math as AM-AM, AM-PM, Volterra coefficients, and/or other performance metrics to a second device, that transmitted the signal, when it is determined that the EVM indications is above the threshold. Systems and methods for wireless communication impairment correction are also disclosed wherein, in accordance with some implementations, a first device receives estimated TX non-linearity indications such as AM-AM, AM-PM, and/or Volterra coefficients from a second device and performs non-linear correction of a transmit signal for the second receiver device based at least in part on the EVM indications. Other aspects, embodiments, and features are also claimed and described.

    LOW COMPLEXITY HIGHER ORDER MIMO
    12.
    发明申请

    公开(公告)号:US20180049215A1

    公开(公告)日:2018-02-15

    申请号:US15622877

    申请日:2017-06-14

    Abstract: Low complexity, high order multiple input, multiple output (MIMO) operations are described in which a user equipment (UE), configured with at least one normal performance receiver chain and at least one low-performance, low-complexity diversity receiver chain, signals a capabilities indicator identifying existence of the low-performance diversity receivers. Using the UEs capabilities, a serving base station may schedule uplink and downlink transmissions for the UE to reduce uplink-downlink collisions below a minimum threshold number. The serving base station may also take UE transmit power into consideration for signaling power control or modulation and coding schemes in order to minimize potential interference cause by UE transmissions. For channel state feedback, the UE may provide different channel feedback for uplink-downlink collision subframes and non-collision subframes.

    MULTI-FREQUENCY RANGE PROCESSING FOR RF FRONT END
    14.
    发明申请
    MULTI-FREQUENCY RANGE PROCESSING FOR RF FRONT END 审中-公开
    RF前端的多频范围处理

    公开(公告)号:US20140376428A1

    公开(公告)日:2014-12-25

    申请号:US14051034

    申请日:2013-10-10

    Abstract: Techniques for supporting multi-frequency range signal processing for a wireless device. In an aspect, a first antenna is provided to support first and third frequency ranges. A second antenna is separately provided to support a second frequency range, wherein the second is between the first and third frequency ranges. In other aspects, the second antenna can further support a fourth frequency range higher than the third frequency range. Other frequency range combinations, dual antenna aspects, and carrier aggregation features are further disclosed herein.

    Abstract translation: 支持无线设备多频范围信号处理的技术。 在一方面,提供第一天线以支持第一和第三频率范围。 单独提供第二天线以支持第二频率范围,其中第二天线在第一和第三频率范围之间。 在其他方面,第二天线可以进一步支持高于第三频率范围的第四频率范围。 本文进一步公开了其他频率范围组合,双天线方面和载波聚合特征。

    MAXIMUM POWER REDUCTION FOR INTERFERENCE CONTROL IN ADJACENT CHANNELS
    15.
    发明申请
    MAXIMUM POWER REDUCTION FOR INTERFERENCE CONTROL IN ADJACENT CHANNELS 有权
    最大功率减少用于相干通道中的干扰控制

    公开(公告)号:US20130182663A1

    公开(公告)日:2013-07-18

    申请号:US13743185

    申请日:2013-01-16

    Abstract: Techniques for determining power relaxation values are disclosed. The power relaxation values may be determined according to an ending resource block (RB) and a number of RBs in a contiguous allocation. In one aspect, the power relaxation values are arranged into regions based, at least in part, on transmission channel bandwidths and the distance from a protected adjacent channel. A user equipment (UE) can determine a power relaxation value for its current allocation using the ending RB index and contiguous RB length and can adjust its transmission power accordingly. Evolved NodeBs may estimate the power relaxation that a particular UE has selected in order to more accurately determine the transmit power available to the UE. Using the more accurate estimate of transmit power, the eNB may schedule the UE for uplink transmissions accordingly.

    Abstract translation: 公开了用于确定功率松弛值的技术。 功率弛豫值可以根据连续分配中的结束资源块(RB)和RB的数量来确定。 在一个方面,功率弛豫值至少部分地基于传输信道带宽和与受保护的相邻信道的距离被布置成区域。 用户设备(UE)可以使用结束RB索引和连续RB长度来确定其当前分配的功率松弛值,并且可以相应地调整其发送功率。 演进的节点B可以估计特定UE已经选择的功率松弛,以便更准确地确定可用于UE的发射功率。 使用更准确的发射功率估计,eNB可以相应地调度UE进行上行链路传输。

    Low complexity higher order MIMO
    16.
    发明授权

    公开(公告)号:US10470200B2

    公开(公告)日:2019-11-05

    申请号:US15622877

    申请日:2017-06-14

    Abstract: Low complexity, high order multiple input, multiple output (MIMO) operations are described in which a user equipment (UE), configured with at least one normal performance receiver chain and at least one low-performance, low-complexity diversity receiver chain, signals a capabilities indicator identifying existence of the low-performance diversity receivers. Using the UEs capabilities, a serving base station may schedule uplink and downlink transmissions for the UE to reduce uplink-downlink collisions below a minimum threshold number. The serving base station may also take UE transmit power into consideration for signaling power control or modulation and coding schemes in order to minimize potential interference cause by UE transmissions. For channel state feedback, the UE may provide different channel feedback for uplink-downlink collision subframes and non-collision subframes.

    UPLINK SIGNALING OF DIRECT CURRENT (DC) TONE LOCATION IN NEW RADIO (NR)

    公开(公告)号:US20190313394A1

    公开(公告)日:2019-10-10

    申请号:US16378401

    申请日:2019-04-08

    Abstract: Wireless communications systems and methods related to signaling of direct current (DC) locations of user equipment devices (UEs) in a new radio (NR) network are provided. A wireless communication device receives, from a base station, at least one of a carrier aggregation (CA) configuration or a bandwidth part (BWP) configuration. The wireless communication device determines a direct current (DC) location based on at least one of the CA configuration or the BWP configuration. The wireless communication device transmits, to the base station, a report based on the determined DC location. The wireless communication device communicates, with the base station, a phase tracking reference signal (PTRS) configured based on the report.

    Supplemental Maximum Power Reduction for Operation in Restricted Configurations
    20.
    发明申请
    Supplemental Maximum Power Reduction for Operation in Restricted Configurations 有权
    补充限制配置中的最大功率减少

    公开(公告)号:US20150094078A1

    公开(公告)日:2015-04-02

    申请号:US14500955

    申请日:2014-09-29

    Abstract: In one embodiment, the present disclosure includes a method for reducing out of band emissions. In one embodiment, the method comprises receiving a network signal value from a network, and reducing a transmission signal power on the basis of the network signal value, a center frequency of a transmitting channel, a number of allocated resource blocks, and a location of the allocated resource blocks within the channel.

    Abstract translation: 在一个实施例中,本公开包括减少带外发射的方法。 在一个实施例中,该方法包括从网络接收网络信号值,并且基于网络信号值,发送信道的中心频率,分配的资源块的数量以及分配的资源块的位置来减少传输信号功率 在频道内分配的资源块。

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