公开(公告)号：US20250055582A1

公开(公告)日：2025-02-13

申请号：US18798441

申请日：2024-08-08

Applicant: Apple Inc.

Inventor： Xiang Chen ,  Dawei Zhang ,  Haitong Sun ,  Jie Cui ,  Konstantinos Sarrigeorgidis ,  Manasa Raghavan ,  Yang Tang

IPC: H04B17/318 ,  H04B7/06 ,  H04W24/10

Abstract: The present application relates to an improved method of operating a user equipment (UE), comprising: receiving, at the UE, a configuration of at least a first Channel Measurement Resource (CMR) set and a second CMR set for group-based beam reporting (GBBR) and performing, at the UE with at least a first antenna panel (and possibly multiple antenna panels), a first plurality of intracell, multiple TRP, Layer 1 Reference Signal Received Power (L1-RSRP) measurements. The first CMR set and second CMR set each comprises a plurality of resources (e.g., Synchronization Signal Block (SSB) resources and/or Channel State Information Reference Signal (CSI-RS) resources), and performing the first plurality of L1-RSRP measurements comprises performing a measurement using a number of fine beams (formed by one or more antenna panels) for one or more of the plurality of resources (up to and including each of the resources) in the first and second CMR sets.

公开(公告)号：US10511462B2

公开(公告)日：2019-12-17

申请号：US15375245

申请日：2016-12-12

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Lydi Smaini

IPC: H04L25/06 ,  H04B1/30 ,  H04L27/26

Abstract: Techniques are disclosed relating to DC interference cancelation in received wireless signals. Disclosed techniques may be performed in the digital domain, in conjunction with analog cancelation techniques. In some embodiments, a receiver apparatus operates a local oscillator at a frequency corresponding to a particular pilot symbol in a received wireless signal. In some embodiments the receiver estimates DC interference at the frequency based on the received pilot symbol (this may be facilitated by the fact that the contents of pilot symbols are known, because they are typically used for channel estimation). In some embodiments, the receiver apparatus is configured to cancel the DC interference based on the estimate to determine received data in subsequently received signals at the frequency. Disclosed techniques may allow narrowband receivers to efficiently use more of their allocated frequency bandwidth, rather than wasting bandwidth near the frequency of the local oscillator.

公开(公告)号：US09961632B2

公开(公告)日：2018-05-01

申请号：US14860773

申请日：2015-09-22

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Moustafa M. Elsayed

IPC: H04B1/00 ,  H04B1/525 ,  H04W52/02 ,  H04B1/10

CPC classification number: H04W52/0209 ,  H04B1/0028 ,  H04B1/10 ,  H04B1/525 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26 ,  Y02D70/40

Abstract: A wireless user equipment (UE) device may include a receiver and transmitter. The UE device may dynamically vary the fidelity requirements imposed on the analog signal processing performed by the receiver and/or the transmitter in response factors such as: amount of signal interference (e.g., out-of-band signal power); modulation and coding scheme; number of spatial streams; extent of transmitter leakage; and size and/or frequency location of resources allocated to the UE device. Thus, the UE device may consume less power on average than a UE device that is designed to satisfy fixed fidelity requirements associated with a worst case reception scenario and/or a worst case transmission scenario.

公开(公告)号：US20160219519A1

公开(公告)日：2016-07-28

申请号：US14987805

申请日：2016-01-05

Applicant: Apple Inc.

Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/24 ,  Y02D70/26

Abstract: This disclosure relates to implementing an adaptive sleep schedule for PDCCH decoding. In some embodiments, prior to receiving PDCCH signaling, a user equipment device may schedule wireless communication circuitry to prepare for and decode the PDCCH signaling, which may include dynamically preparing a first interrupt for the wireless communication circuitry to perform the preparing for and the decoding. In response to the first interrupt, the UE may prepare for and decode the PDCCH signaling using the wireless communication circuitry. The UE may analyze the result of the decoding, which may include determining that the PDCCH signaling does not comprise information for the UE. In response to determining that the PDCCH signaling does not comprise information for the UE, the UE may schedule the wireless communication circuitry to shut down, which may include dynamically preparing a second interrupt to shut down the wireless communication circuitry.

Abstract translation: 本公开涉及实现用于PDCCH解码的自适应睡眠调度。 在一些实施例中，在接收PDCCH信令之前，用户设备设备可以调度无线通信电路以准备和解码PDCCH信令，其可以包括为无线通信电路动态准备第一个中断以执行准备和解码。 响应于第一中断，UE可以使用无线通信电路准备和解码PDCCH信令。 UE可以分析解码的结果，其可以包括确定PDCCH信令不包括用于UE的信息。 响应于确定PDCCH信令不包括用于UE的信息，UE可以安排无线通信电路关闭，其可以包括动态地准备第二中断以关闭无线通信电路。

公开(公告)号：US20160218900A1

公开(公告)日：2016-07-28

申请号：US14990711

申请日：2016-01-07

Applicant: Apple Inc.

Inventor： Lydi Smaini ,  Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04L27/12 ,  H04B1/04 ,  H04W72/14 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B1/04 ,  H04B2001/0491 ,  H04L5/0044 ,  H04L27/2636 ,  H04L27/361 ,  H04L27/362 ,  H04W88/02

Abstract: This disclosure relates to a system and method for generating single-carrier frequency division multiple access (SC-FDMA) transmissions using a high efficiency architecture. According to some embodiments, frequency resources allocated for a transmission may be determined. The allocated frequency resources may have a bandwidth less than a channel bandwidth of a frequency channel of the transmission, and may be centered around a particular frequency. The frequency may be offset from the center frequency of the channel. A baseband signal located around DC corresponding to the channel center frequency may be generated. The baseband signal may be up-converted to an RF signal using a local oscillator tuned to the frequency around which the allocated frequency resources are centered. The RF signal may be transmitted.

Abstract translation: 本公开涉及一种使用高效率架构来生成单载波频分多址（SC-FDMA）传输的系统和方法。 根据一些实施例，可以确定为发送分配的频率资源。 分配的频率资源可以具有小于该传输的频道的信道带宽的带宽，并且可以围绕特定频率居中。 频率可能偏离通道的中心频率。 可以产生位于与通道中心频率对应的DC周围的基带信号。 可以使用调谐到所分配的频率资源所居中的频率的本地振荡器将基带信号上变频为RF信号。 RF信号可以被发送。

公开(公告)号：US20160218758A1

公开(公告)日：2016-07-28

申请号：US14996331

申请日：2016-01-15

Applicant: Apple Inc.

Inventor： Lydi Smaini ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Syed Aon Mujtaba

IPC: H04B1/10 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B1/1018 ,  H04L5/005 ,  H04L5/0053

Abstract: Methods and devices are provided for processing a received communication signal by a UE using an analog complex filter and using a single analog-to-digital converter (ADC). A control channel of the communication signal may be decoded to determine the frequency range in which a payload channel is located. The UE may then demodulate only the frequency range containing the payload channel. A complex representation of the received payload channel may be provided to the analog complex filter, with the payload channel shifted to a non-zero frequency IF. The analog complex filter may attenuate any portion of the complex representation that falls near—IF. The UE may then convert only one component path of the filtered complex representation to a digital signal. A complex representation of the digital signal may then be generated, with the payload channel shifted to DC.

Abstract translation: 提供了用于使用模拟复合滤波器和使用单个模数转换器（ADC）来处理UE接收的通信信号的方法和装置。 可以对通信信号的控制信道进行解码，以确定有效载荷信道所在的频率范围。 然后，UE可以仅解调包含有效载荷信道的频率范围。 所接收到的有效载荷信道的复杂表示可以被提供给模拟复合滤波器，其中有效载荷信道被移动到非零频率IF。 模拟复合滤波器可以衰减接近IF的复数表示的任何部分。 然后，UE可以将仅滤波的复数表示的一个分量路径转换为数字信号。 然后可以产生数字信号的复数表示，其中有效载荷信道移动到DC。

公开(公告)号：US20160127990A1

公开(公告)日：2016-05-05

申请号：US14531646

申请日：2014-11-03

Applicant: Apple Inc.

Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W72/042 ,  H04W52/0209 ,  H04W52/0229 ,  H04W52/52 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: An apparatus, system, and method for performing PDCCH preparation in RF circuitry are described. In one embodiment, power may be provided to a crystal oscillator to exit a first sleep state. One or more clocking signals may be provided to RF circuitry based on output from the crystal oscillator. Calibration and state restoration of the RF circuitry may be performed independent of baseband circuitry. A plurality of algorithms to prepare for receiving data form a wireless communication network may be performed independent of the baseband circuitry. After initiating the plurality of algorithms, state restoration of the baseband circuitry may be performed. Data may be received from a wireless communication network using the RF circuitry. The data may be processed using the baseband circuitry. State retention for the RF circuitry and the baseband circuitry may be performed. Finally, the crystal oscillator may be powered down to enter a second sleep state.

Abstract translation: 描述了用于在RF电路中执行PDCCH准备的装置，系统和方法。 在一个实施例中，可以向晶体振荡器提供功率以退出第一睡眠状态。 可以基于晶体振荡器的输出向RF电路提供一个或多个时钟信号。 可以独立于基带电路来执行RF电路的校准和状态恢复。 可以独立于基带电路来执行用于准备从无线通信网络接收数据的多种算法。 在启动多个算法之后，可以执行基带电路的状态恢复。 可以使用RF电路从无线通信网络接收数据。 可以使用基带电路来处理数据。 可以执行RF电路和基带电路的状态保持。 最后，晶体振荡器可以掉电进入第二个睡眠状态。

公开(公告)号：US20150365930A1

公开(公告)日：2015-12-17

申请号：US14726771

申请日：2015-06-01

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Moustafa M. Elsayed

IPC: H04W72/04 ,  H04B17/336 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094

Abstract: An apparatus, system, and method for reliable decoding of control information during LTE wireless transmissions is described. A mobile device may decode the PCFICH blindly, which may include obtaining resource elements (REs) that are reserved for Physical Downlink Control Channel (PDCCH), based on a largest value of a control format indicator (CFI), finding a total number of control channel elements (CCEs) according to the obtained REs, numbering the CCEs, and decoding the PDCCH for the largest value of the CFI over the numbered CCEs. Accordingly, the mobile device does not need to decode the PCFICH specifically. The mobile device may indicate to the NW that the mobile device is a constrained device, and the NW may responsively transmit control information using a reserved control format indication value corresponding to the UE being indicated as a constrained device. The mobile device may then not need to decode the PCFICH, and decode the PDCCH based on the PDCCH occupying a first four OFDM symbols.

Abstract translation: 描述了用于LTE无线传输期间控制信息的可靠解码的装置，系统和方法。 移动设备可以盲目地解码PCFICH，其可以包括基于控制格式指示符（CFI）的最大值获得为物理下行链路控制信道（PDCCH）预留的资源元素（RE），找到总控制数量 信道单元（CCE），对CCE进行编号，并对编号的CCE中的CFI的最大值进行解码。 因此，移动设备不需要专门解码PCFICH。 移动设备可以向NW指示移动设备是受限设备，并且NW可以使用对应于被指示为受约束设备的UE的预留控制格式指示值来响应地发送控制信息。 然后，移动设备可能不需要对PCFICH进行解码，并且基于占用前四个OFDM符号的PDCCH来解码PDCCH。

公开(公告)号：US10979257B2

公开(公告)日：2021-04-13

申请号：US16676721

申请日：2019-11-07

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Lydi Smaini

IPC: H04L25/06 ,  H04B1/30 ,  H04L27/26

Abstract: Techniques are disclosed relating to DC interference cancelation in received wireless signals. Disclosed techniques may be performed in the digital domain, in conjunction with analog cancelation techniques. In some embodiments, a receiver apparatus operates a local oscillator at a frequency corresponding to a particular pilot symbol in a received wireless signal. In some embodiments the receiver estimates DC interference at the frequency based on the received pilot symbol (this may be facilitated by the fact that the contents of pilot symbols are known, because they are typically used for channel estimation). In some embodiments, the receiver apparatus is configured to cancel the DC interference based on the estimate to determine received data in subsequently received signals at the frequency. Disclosed techniques may allow narrowband receivers to efficiently use more of their allocated frequency bandwidth, rather than wasting bandwidth near the frequency of the local oscillator.

公开(公告)号：US10466345B1

公开(公告)日：2019-11-05

申请号：US15912808

申请日：2018-03-06

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis

IPC: G01S11/02

Abstract: An interface circuit in an electronic device may receive samples of wireless signals in a time interval, where the wireless signals are associated with the second electronic device. Then, the interface circuit may generate, based at least in part on the samples, pseudospectra corresponding to eigenfilters associated with eigenvectors of a signal spectrum, where the pseudospectra correspond to a set of times of arrival of the samples. Moreover, for a given peak in the pseudospectra, the interface circuit may determine an associated number of additional peaks within a temporal bin that includes the given peak, where the given peak is associated with one of the set of times of arrival. Next, the interface circuit may select a subset of the peaks having a top-N numbers of additional peaks, where N is an integer. Furthermore, the interface circuit may select lower time of arrival for the subset of the peaks.