System Information Signaling for Link Budget Limited Wireless Devices
    242.
    发明申请
    System Information Signaling for Link Budget Limited Wireless Devices 审中-公开
    链路预算有限的无线设备的系统信息信令

    公开(公告)号:US20160205671A1

    公开(公告)日:2016-07-14

    申请号:US14980710

    申请日:2015-12-28

    Applicant: Apple Inc.

    CPC classification number: H04W72/042 H04W48/12 H04W48/16

    Abstract: This disclosure relates to providing system information for cell access to link budget limited devices. According to some embodiments, a base station may transmit a master information block (MIB), a first system information block (SIB), and second SIBs. The first SIB and the second SIBs may be configured for different device categories, and may accordingly have different characteristics. For example, the first SIB may be configured for link budget limited devices, and may include information specific to such devices and/or may exclude information not relevant to such devices or not critical to accessing the cell. In some instances, the first SIB may also include information from the MIB, such that at least some devices may be able to decode the first SIB and gain cell access without decoding the MIB.

    Abstract translation: 本公开涉及提供用于小区接入链路预算受限设备的系统信息。 根据一些实施例,基站可以发送主信息块(MIB),第一系统信息块(SIB)和第二SIB。 第一SIB和第二SIB可以被配置用于不同的设备类别,并且因此可以具有不同的特性。 例如,第一SIB可以被配置用于链路预算限制的设备,并且可以包括特定于这些设备的信息和/或可以排除与这样的设备不相关的信息,或者对访问小区不是至关重要的。 在一些情况下,第一SIB还可以包括来自MIB的信息,使得至少一些设备可以能够解码第一SIB并且增益小区接入而不解码MIB。

    Physical downlink control channel decoding
    245.
    发明授权
    Physical downlink control channel decoding 有权
    物理下行链路控制信道解码

    公开(公告)号:US09374259B2

    公开(公告)日:2016-06-21

    申请号:US14497071

    申请日:2014-09-25

    Applicant: Apple Inc.

    Abstract: Methods and apparatuses to reduce resource consumption by a mobile wireless device when decoding control channel information, such as a physical downlink control channel (PDCCH), in a subframe received from an LTE wireless network are disclosed. Representative methods include demodulating a first set of one or more PDCCH OFDM symbols contained in the subframe based on a first channel estimate; obtaining a second channel estimate based on a second OFDM symbol before demodulating a second set of one or more PDCCH OFDM symbols contained in the subframe based on both the first channel estimate and the second channel estimate. When the PDCCH indicates no downlink assignments for the subframe, the mobile wireless device enters a reduced power consumption mode after demodulating the PDCCH.

    Abstract translation: 公开了在从LTE无线网络接收的子帧中解码诸如物理下行链路控制信道(PDCCH)之类的控制信道信息时,减少移动无线设备的资源消耗的方法和装置。 代表性的方法包括基于第一信道估计来解调包含在子帧中的一个或多个PDCCH OFDM符号的第一集合; 基于第一信道估计和第二信道估计,在解调包含在子帧中的第一组一个或多个PDCCH OFDM符号之前,基于第二OFDM符号获得第二信道估计。 当PDCCH不指示子帧的下行链路分配时,移动无线设备在解调PDCCH之后进入降低的功耗模式。

    Selecting a physical data channel based on application traffic pattern
    246.
    发明授权
    Selecting a physical data channel based on application traffic pattern 有权
    根据应用流量模式选择物理数据通道

    公开(公告)号:US09363704B2

    公开(公告)日:2016-06-07

    申请号:US14310970

    申请日:2014-06-20

    Applicant: Apple Inc.

    Abstract: Selecting a physical channel for cellular communication based on application traffic pattern. A radio bearer may be established between a wireless device and a base station. A physical downlink channel may be selected for the radio bearer. The physical downlink channel may be selected based on an application traffic pattern of an application associated with the radio bearer. In some instances, a physical uplink channel may also be selected based on an application traffic pattern of an application associated with the radio bearer.

    Abstract translation: 基于应用流量模式选择用于蜂窝通信的物理信道。 可以在无线设备和基站之间建立无线承载。 可以为无线承载选择物理下行链路信道。 可以基于与无线承载相关联的应用的应用业务模式来选择物理下行链路信道。 在一些情况下,还可以基于与无线电承载相关联的应用的应用业务模式来选择物理上行链路信道。

    Adaptive partial packet decoding
    248.
    发明授权
    Adaptive partial packet decoding 有权
    自适应部分分组解码

    公开(公告)号:US09319934B2

    公开(公告)日:2016-04-19

    申请号:US14472442

    申请日:2014-08-29

    Applicant: Apple Inc.

    Abstract: A user device receives packets from a base station. The user device may invoke decoding while the packet is still being received, based on the incomplete contents of a given packet. This “partial packet decoding” relies on the fact that the underlying information in the packet is encoded with redundancy (code rate less than one). If link quality is poor, the partial packet decoding is likely to be unsuccessful, i.e., to fail in its attempt to recover the underlying information. To avoid waste of power, the user device may be configured to apply one or more tests of link quality prior to invoking the partial packet decoding on a current packet.

    Abstract translation: 用户设备从基站接收分组。 基于给定分组的不完整内容,用户设备可以在分组仍在接收时调用解码。 这种“部分分组解码”依赖于以冗余(代码率小于1)对分组中的底层信息进行编码的事实。 如果链路质量差,则部分分组解码可能不成功,即在尝试恢复基础信息时失败。 为了避免浪费电力,用户设备可以被配置为在对当前分组调用部分分组解码之前应用一个或多个链路质量测试。

    Redundant transmission of real time data
    249.
    发明授权
    Redundant transmission of real time data 有权
    冗余传输实时数据

    公开(公告)号:US09312988B2

    公开(公告)日:2016-04-12

    申请号:US14187988

    申请日:2014-02-24

    Applicant: Apple Inc.

    CPC classification number: H04L1/08

    Abstract: A method for redundant transmission of real time data is provided. The method can include an edge node in a wireless network sending a first RTP packet including a first real time data frame to a second edge node. The method can further include the edge node determining that a radio link condition is sufficient to support redundant transmission of real time data to the second edge node. The method can additionally include the edge node, in response to determining that the radio link condition is sufficient to support redundant transmission of real time data, bundling the first real time data frame with a next sequential real time data frame that has not been previously sent to the second edge node in a second RTP packet at a PDCP layer of the edge node; and sending the second RTP packet to the second edge node.

    Abstract translation: 提供了实时数据冗余传输的方法。 该方法可以包括无线网络中的边缘节点,向第二边缘节点发送包括第一实时数据帧的第一RTP分组。 该方法还可以包括边缘节点确定无线电链路条件足以支持实时数据到第二边缘节点的冗余传输。 该方法可以另外包括边缘节点,以响应于确定无线电链路条件足以支持实时数据的冗余传输,将第一实时数据帧与先前未发送的下一个连续实时数据帧进行捆绑 在所述边缘节点的PDCP层处的第二RTP分组中的所述第二边缘节点; 以及将所述第二RTP分组发送到所述第二边缘节点。

    Enhanced DCI Formats for Link Budget Improvement in LTE
    250.
    发明申请
    Enhanced DCI Formats for Link Budget Improvement in LTE 审中-公开
    LTE增强链路预算改进的DCI格式

    公开(公告)号:US20160073339A1

    公开(公告)日:2016-03-10

    申请号:US14823409

    申请日:2015-08-11

    Applicant: Apple Inc.

    Abstract: In some embodiments, a user equipment device (UE) may be configured to transmit an indication to a base station that the UE is link budget limited and receive control information encoded in a downlink control information (DCI) format. The DCI format may be determined based on the indication. The UE may decode the control information according to the DCI format. The DCI format may specify the number of bits for various parameters and may combine these parameters. Parameters may include format flag, hopping flag, modulation and coding scheme (MCS), redundancy version (RV), uplink index, downlink assignment index (DAI), carrier indicator, channel state information (CSI) request, sounding reference symbol (SRS) request, resource allocation type, localized/distributed indication, code-word swap, and so forth. Additionally, the DCI format may specify a bit length when using a particular number of resource blocks.

    Abstract translation: 在一些实施例中,用户设备设备(UE)可以被配置为向基站发送指示UE是链路预算受限的接收控制信息,并且以下行链路控制信息(DCI))格式编码的控制信息。 DCI格式可以基于指示来确定。 UE可以根据DCI格式解码控制信息。 DCI格式可以指定各种参数的位数,并且可以组合这些参数。 参数可以包括格式标志,跳频标志,调制和编码方案(MCS),冗余版本(RV),上行链路索引,下行链路分配索引(DAI),载波指示符,信道状态信息(CSI)请求,探测参考符号(SRS) 请求,资源分配类型,本地化/分布式指示,代码字交换等。 另外,DCI格式可以在使用特定数量的资源块时指定位长度。

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