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.

Inventor： Syed Aon Mujtaba ,  Kee-Bong Song ,  Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Youngjae Kim

IPC: H04W28/04 ,  H04L1/00 ,  H04W52/24 ,  H04W52/14

CPC classification number: H04W28/048 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0053 ,  H04W28/04 ,  H04W52/143 ,  H04W52/241

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。

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.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba ,  Awais M. Hussain

IPC: H04W52/02 ,  H04L1/00 ,  H04W72/04 ,  H04W52/14

CPC classification number: H04W52/0209 ,  H04L1/0003 ,  H04L1/0029 ,  H04L1/003 ,  H04L1/0031 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/143 ,  H04W72/042 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26

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。

公开(公告)号：US20160014810A1

公开(公告)日：2016-01-14

申请号：US14795750

申请日：2015-07-09

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba ,  Moustafa M. Elsayed

IPC: H04W74/00 ,  H04L1/18 ,  H04B7/06 ,  H04W74/08

CPC classification number: H04W74/004 ,  H04B7/0626 ,  H04L1/1671 ,  H04L1/18 ,  H04L1/1896 ,  H04W72/1278 ,  H04W72/14 ,  H04W74/0833

Abstract: Mechanisms are disclosed for improved transmission of uplink control information by a user equipment (UE) that is link budget limited. In one embodiment, the UE transmits a message to the base station indicating that the UE is link budget limited. In response to the message, the base station sends an uplink grant to the UE, enabling the UE to transmit uplink control information on the physical uplink shared channel (PUSCH) instead of on the Physical Uplink Control Channel (PUCCH). In another embodiment, the base station sends an uplink grant to a link-budget-limited UE each time downlink traffic is transmitted to the UE, enabling the UE to send ACK/NACK feedback on the PUSCH instead of the PUCCH. In another embodiment, the UE transmits a scheduling request (SR) to the base station as part of a random access procedure, enabling the SR to be transmitted on the PUSCH instead of the PUCCH.

Abstract translation: 公开了用于通过链路预算限制的用户设备（UE）改进上行链路控制信息的传输的机制。 在一个实施例中，UE向基站发送指示UE是链路预算限制的消息。 响应于该消息，基站向UE发送上行链路授权，使得UE能够在物理上行链路共享信道（PUSCH）上而不是在物理上行链路控制信道（PUCCH）上发送上行链路控制信息。 在另一个实施例中，每当下行链路业务被发送到UE时，基站向链路限制的UE发送上行链路许可，使得UE能够在PUSCH上发送ACK / NACK反馈而不是PUCCH。 在另一个实施例中，UE作为随机接入过程的一部分向基站发送调度请求（SR），使得能够在PUSCH而不是PUCCH上发送SR。

公开(公告)号：US20160014716A1

公开(公告)日：2016-01-14

申请号：US14795733

申请日：2015-07-09

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba ,  Moustafa M. Elsayed

IPC: H04W68/00 ,  H04W72/04

CPC classification number: H04W68/005 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/048 ,  H04W76/28

Abstract: For paging user devices that are link budget limited (LBL), a base station transmits a special ID that is used by said devices to identify a paging frame and/or a paging occasion. When transmitting a paging message for an LBL device, the base station may use: (a) larger aggregation and larger CFI (than conventionally allowed) and (b) a larger number of resource blocks (than conventionally allowed) for paging payload. If paging messages for LBL devices saturate the paging frame capacity, the base station may allocate a plurality of special IDs. If paging messages for LBL devices and/or other data transfers saturate network capacity, at least a subset of the LBL devices may be directed to enter a connected-state discontinuous reception (DRX) mode, wherein those devices will remain in connected mode and periodically check for resource allocations. Paging payload information may be repeatedly transmitted in successive subframes, to support soft combining.

Abstract translation: 对于作为链路预算限制（LBL）的寻呼用户设备，基站发送由所述设备使用的专用ID，以识别寻呼帧和/或寻呼时机。 当发送用于LBL设备的寻呼消息时，基站可以使用：（a）更大的聚合和更大的CFI（比常规允许的）和（b）用于寻呼有效载荷的更多数量的资源块（比常规允许的）。 如果LBL设备的寻呼消息使寻呼帧容量饱和，则基站可以分配多个特殊ID。 如果用于LBL设备的寻呼消息和/或其他数据传输饱和网络容量，LBL设备的至少一个子集可以被引导进入连接状态不连续接收（DRX）模式，其中那些设备将保持连接模式并且周期性地 检查资源分配。 分页有效载荷信息可以在连续的子帧中重复发送，以支持软组合。

公开(公告)号：US20150365198A1

公开(公告)日：2015-12-17

申请号：US14729285

申请日：2015-06-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Youngjae Kim ,  Syed Aon Mujtaba

IPC: H04L1/18 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L1/1812 ,  H04L1/1657 ,  H04L1/1671 ,  H04L1/1896 ,  H04L5/0055 ,  H04L5/006 ,  H04W72/042

Abstract: Mobile devices, base stations, and/or relay stations may implement a method for an improved and reliable automatic repeat request feedback indication. A mobile device (UE) may establish communication within a wireless network, and indicate to the network that the UE is a special type device, e.g. a constrained device. The network (base station) may then not send an indication on a physical indicator channel to the UE when certain conditions are met, and instead, the mobile device may interpret control information received from the network on a physical control channel as a negative acknowledgment indication corresponding to an automatic repeat request from the network. The UE may then perform a retransmission according to the interpreted control information. A new control information format may be used to further define how the network and UE implement the automatic repeat request process, to reduce the total number of bits required in the control information.

Abstract translation: 移动设备，基站和/或中继站可以实现用于改进和可靠的自动重发请求反馈指示的方法。 移动设备（UE）可以在无线网络内建立通信，并向网络指示UE是特殊类型的设备，例如， 受限制的设备。 然后，当满足某些条件时，网络（基站）可以不向物理指示符信道发送指示，而替代地，移动设备可以解释在物理控制信道上从网络接收的控制信息作为否定确认指示 对应于来自网络的自动重发请求。 然后，UE可以根据解释的控制信息执行重传。 可以使用新的控制信息格式来进一步定义网络和UE如何实现自动重复请求过程，以减少控制信息中所需的总位数。

公开(公告)号：US09084128B2

公开(公告)日：2015-07-14

申请号：US14082093

申请日：2013-11-15

Applicant: Apple Inc.

Inventor： Syed Aon Mujtaba ,  Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi ,  Isabel G. Mahe

IPC: H04B1/04 ,  H04W24/00 ,  H04W68/00 ,  H04W88/06 ,  H04B7/06 ,  H04B7/08 ,  H04W88/10

CPC classification number: H04W24/08 ,  H04B1/26 ,  H04B7/0602 ,  H04B7/0802 ,  H04W24/00 ,  H04W68/00 ,  H04W88/06 ,  H04W88/10

Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas by switching circuitry. Multiple radio access technologies may be supported. A device may include first and second antennas. Control circuitry can configure the transceiver circuitry and switching circuitry to support operation of the device in active and idle modes for each radio access technology. In some configurations, both antennas may be used to support operations associated with one of the radio access technologies. In other configurations, the first antenna may be used to support operations with a first of the radio access technologies while the second antenna is used to support operations with a second of the radio access technologies.

Abstract translation: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括通过开关电路耦合到天线的射频收发器电路。 可以支持多种无线电接入技术。 设备可以包括第一和第二天线。 控制电路可以配置收发器电路和开关电路，以支持每个无线电接入技术在主动和空闲模式下的设备操作。 在一些配置中，两个天线可以用于支持与无线电接入技术之一相关联的操作。 在其他配置中，第一天线可以用于支持具有第一无线电接入技术的操作，而第二天线用于支持具有第二无线电接入技术的操作。

公开(公告)号：US20130322586A1

公开(公告)日：2013-12-05

申请号：US13887207

申请日：2013-05-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Navid Damji ,  Kee-Bong Song ,  Syed Aon Mujtaba ,  Johnson Sebeni ,  Zhu Ji

IPC: H04L25/02

CPC classification number: H04L25/0206 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0256

Abstract: Methods and apparatus for resuming radio channel measurements and estimations after an interruption in reception. In one exemplary embodiment of the present disclosure, an adaptive solution is provided for channel estimation based at least in part on the reception interruption duration. In one variant, an LTE UE determines a windowing length and/or “shape” for a time domain channel estimation algorithm based on at least the interruption duration. In an alternate variant, an LTE UE determines the interpolation coefficients for a filter based on the interruption duration.

Abstract translation: 在接收中断后恢复无线电信道测量和估计的方法和装置。 在本公开的一个示例性实施例中，至少部分地基于接收中断持续时间来提供用于信道估计的自适应解决方案。 在一个变型中，LTE UE至少基于中断持续时间来确定时域信道估计算法的加窗长度和/或“形状”。 在替代变型中，LTE UE基于中断持续时间确定滤波器的内插系数。

公开(公告)号：US20130225094A1

公开(公告)日：2013-08-29

申请号：US13766055

申请日：2013-02-13

Applicant: Apple Inc.

Inventor： Syed Aon Mujtaba ,  Youngjae Kim ,  Kee-Bong Song ,  Xiaowen Wang ,  Yuchul Kim

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04B7/0871 ,  H04B7/0877 ,  H04W52/0238 ,  H04W52/0245 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25 ,  Y02D70/444

Abstract: Methods and apparatus for adaptively adjusting receiver operation for e.g., power optimization. In one embodiment, operation during diversity operation is adaptively adjusted. Diversity techniques consume significantly more power than non-diversity operation. However, the performance gain from receiver diversity is not always predictable. Consequently, in one embodiment, a device evaluates the overall performance gain contributed by diversity operation and, where the performance gain is insignificant or inadequate, the device disables diversity operation. In one implementation, the device can operate in a static single antenna mode, a dynamic single antenna mode and a dynamic multiple antenna mode.

Abstract translation: 用于自适应地调整接收机操作的方法和装置，例如功率优化。 在一个实施例中，自适应地调整分集操作期间的操作。 分集技术比非分集操作消耗更多的功率。 然而，接收机多样性的性能增益并不总是可预测的。 因此，在一个实施例中，设备评估由分集操作贡献的总体性能增益，并且在性能增益不显着或不足的情况下，该设备禁用分集操作。 在一个实现中，该设备可以在静态单天线模式，动态单天线模式和动态多天线模式中操作。

公开(公告)号：US08489034B1

公开(公告)日：2013-07-16

申请号：US13711442

申请日：2012-12-11

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Kee-Bong Song ,  Syed Aon Mujtaba

IPC: H04B1/40

CPC classification number: H04B7/0805 ,  H04L1/1614

Abstract: In order to improve the communication performance and communication reliability of an electronic device, a communication quality metric is determined based on information communicated via a wireless network using a single antenna. For example, the communication quality metric may be determined based on acknowledgment (ACK) and negative-acknowledgment (NACK) messages in the communicated information or a number of packets retransmitted and a number of new packets transmitted in the communicated information. Then, one of at least two antennas is selected based on the determined communication quality metric. In this way, the electronic device may effectively use a single receive chain to provide improved communication of the information.

Abstract translation: 为了提高电子设备的通信性能和通信可靠性，基于通过使用单个天线的无线网络传送的信息来确定通信质量度量。 例如，可以基于所传送的信息中的确认（ACK）和否定确认（NACK）消息或重发的分组的数量以及在传送的信息中发送的新的分组的数量来确定通信质量度量。 然后，基于所确定的通信质量度量来选择至少两个天线中的一个。 以这种方式，电子设备可以有效地使用单个接收链来提供改进的信息通信。

公开(公告)号：US11882563B2

公开(公告)日：2024-01-23

申请号：US18083925

申请日：2022-12-19

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04W72/21 ,  H04W76/28 ,  H04L1/1812 ,  H04L1/1867 ,  H04L5/00 ,  H04L27/26 ,  H04L1/1607

CPC classification number: H04W72/21 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1887 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0092 ,  H04L27/2614 ,  H04W76/28 ,  H04L1/1635 ,  H04L5/0044 ,  Y02D30/70

Abstract: A user equipment (UE) and base station may implement improved communication methods which enable a UE that is peak current limited to perform UL transmissions which are consistent with the UL timeline. A UE that is peak current limited may utilize a new form of distributed TTI (transmit time interval) bundling for improved uplink communication performance. In performing “distributed” TTI bundling, the UE may transmit a plurality of redundancy versions of first information to the base station, wherein the plurality of redundancy versions are transmitted in non-consecutive sub-frames with a periodicity of X ms. After the plurality of redundancy versions of first information are transmitted to the base station, the base station may provide a single acknowledge/negative acknowledge (ACK/NACK) to the UE. A method for dynamically generating and using a bundle size for TTI bundling is also disclosed.