公开(公告)号：US20160112162A1

公开(公告)日：2016-04-21

申请号：US14963583

申请日：2015-12-09

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04L1/18 ,  H04W72/04

CPC classification number: H04L1/1812 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1896 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/16 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/28 ,  H04W88/08

Abstract: A user equipment (UE) implements improved communication methods which enable uplink (UL) transmissions consistent with an UL timeline. The UE may have a transmit duty cycle and may transmit acknowledge/negative acknowledge messages to a base station according to the transmit duty cycle. Additionally, the UE may be configured to determine signal-to-interference-plus noise ratio (SINR) between the UE and the base station and compare SINR to a threshold. The UE may transmit redundancy versions of data in consecutive sub-frames with a duty cycle of two transmissions per X+1 sub-frames if SINR is equal or above the threshold and redundancy versions using a duty cycle of one transmission per X sub-frames if SINR is below the threshold. Further, the UE may be configured to communicate a number of UL HARQ processes supported by the UE, receive first information in a first sub-frame, and send second information X sub-frames after the first sub-frame.

公开(公告)号：US20160100304A1

公开(公告)日：2016-04-07

申请号：US14870763

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Dawei Zhang ,  Syed Aon Mujtaba

IPC: H04W8/00 ,  H04W52/02 ,  H04W76/02

CPC classification number: H04W8/005 ,  H04W52/0241 ,  H04W76/14 ,  Y02D70/00 ,  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) implements a method for discovering the presence of neighboring UEs using an on-demand discovery signal transmission technique. This discovery process may be performed to enable the UEs to perform peer-to-peer communications with each other, wherein peer-to-peer communications is defined as direct communication between the UEs without involving a base station. The UE may be configured to transmit a discovery request signal when it has moved greater than a threshold amount since transmission of a prior discovery request signal. The discovery request signal causes one or more neighboring UEs to each transmit a discovery signal in response, and also causes the UE which generated the discovery request signal to transmit its own discovery signal. The received discovery signal from each of the neighboring UEs is useable to discover, or detect the presence of, these neighboring UEs.

Abstract translation: 在一些实施例中，用户设备设备（UE）使用按需发现信号传输技术来实现用于发现相邻UE的存在的方法。 可以执行该发现过程以使得UE能够彼此执行对等通信，其中将对等通信定义为在不涉及基站的情况下在UE之间的直接通信。 UE可以被配置为当发现先前的发现请求信号已经移动大于阈值量时，发送发现请求信号。 发现请求信号使得一个或多个相邻UE每个响应地发送发现信号，并且还使产生发现请求信号的UE发送其自己的发现信号。 来自每个相邻UE的接收到的发现信号可用于发现或检测这些相邻UE的存在。

公开(公告)号：US20160073331A1

公开(公告)日：2016-03-10

申请号：US14844241

申请日：2015-09-03

Applicant: Apple Inc.

Inventor： Swaminathan Balakrishnan ,  Sindhu Sivasankaran Nair ,  Tarik Tabet ,  Sarma V. Vangala

IPC: H04W48/16 ,  H04L12/66 ,  H04W4/02

CPC classification number: H04L12/66 ,  H04L12/6418

Abstract: Instead of barring an LTE network for the Long Bar Time duration (LBT) if the LTE cell doesn't support CSFB, a wireless communication device may perform a scan for LTE networks before expiration of the LBT if the UE has changed its location. When the UE is in LTE acquisition mode, or the necessary information about a CS network for CSFB is unavailable, the UE may maintain its state on both the LTE and CS network, and check CS paging messages to see if the UE can decode any status. Unlike for CSFB, checking for overhead messages may be performed over the LTE system, and the UE may wake up on CS pages to determine if a suitable network is available. By maintaining its state on both types of networks, the UE may use LTE for data services which would otherwise be provided by different systems for the CS networks when messages transmitted over LTE do not include CS registration information.

Abstract translation: 如果LTE小区不支持CSFB，则不是将LTE网络限制在长时间段时间长度（LBT），如果UE改变了其位置，则无线通信设备可以在LBT到期之前对LTE网络执行扫描。 当UE处于LTE获取模式时，或者关于CSFB的CS网络的必要信息不可用时，UE可以在LTE和CS网络上保持其状态，并检查CS寻呼消息以查看UE是否可以解码任何状态 。 与CSFB不同，可以通过LTE系统执行开销消息的检查，并且UE可以在CS页面上唤醒以确定合适的网络是否可用。 通过在两种类型的网络上维持其状态，当LTE发送的消息不包括CS注册信息时，UE可以使用LTE用于数据业务，否则这些数据业务将由CS网络的不同系统提供。

公开(公告)号：US09264968B2

公开(公告)日：2016-02-16

申请号：US14095292

申请日：2013-12-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Dawei Zhang

IPC: H04W36/00 ,  H04W36/30 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W36/30 ,  H04L5/001 ,  H04L5/0053 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/14

Abstract: Device-to-device (D2D) communications in conjunction with carrier aggregation. A base station (BS) may coordinate D2D communication between two wireless user equipment (UE) devices. A primary cell may be configured for communicating with each of the UEs. A secondary cell may be configured for D2D communication between the two UEs. The primary cell and the secondary cell may utilize different component carriers. Additionally, cross-carrier scheduling may be used, such that at least some control information for the secondary cell is communicated via the primary cell.

Abstract translation: 与载波聚合相结合的设备到设备（D2D）通信。 基站（BS）可以协调两个无线用户设备（UE）设备之间的D2D通信。 主单元可以被配置为与每个UE进行通信。 二级小区可以被配置用于两个UE之间的D2D通信。 主电池和二次电池可以利用不同的分量载流子。 此外，可以使用跨载波调度，使得至少一些用于辅助小区的控制信息经由主小区传送。

公开(公告)号：US09226174B2

公开(公告)日：2015-12-29

申请号：US13899250

申请日：2013-05-21

Applicant: Apple Inc.

Inventor： Christian W. Mucke ,  Tarik Tabet ,  Xiangying Yang

IPC: H04W24/00 ,  H04W24/02 ,  H04W28/18 ,  H04B1/10 ,  H04J11/00 ,  H04L5/00 ,  H04B1/525 ,  H04B1/04

CPC classification number: H04W24/02 ,  H04B1/0475 ,  H04B1/1027 ,  H04B1/525 ,  H04J11/0036 ,  H04L5/001 ,  H04W28/18

Abstract: A method for improving reception by a wireless communication device is provided. The method can include a wireless communication device using a first RF chain to support a connection to a network via a first frequency band. The method can further include the wireless communication device tuning a second RF chain, which is not being actively used for carrier aggregation, to a second frequency band. The method can additionally include the wireless communication device measuring, via the second RF chain, a signal characteristic of the second frequency band. The method can also include the wireless communication device adjusting a configuration of the first RF chain based at least in part on the measured signal characteristic.

Abstract translation: 提供了一种用于改善由无线通信设备的接收的方法。 该方法可以包括使用第一RF链的无线通信设备来经由第一频带来支持到网络的连接。 该方法可以进一步包括无线通信设备将未被主动用于载波聚合的第二RF链调谐到第二频带。 该方法还可以包括无线通信设备经由第二RF链测量第二频带的信号特性。 该方法还可以包括至少部分地基于测量的信号特性来调整第一RF链的配置的无线通信设备。

公开(公告)号：US20150373649A1

公开(公告)日：2015-12-24

申请号：US14445963

申请日：2014-07-29

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  S. Aon Mujtaba

IPC: H04W52/24 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04W52/24 ,  H04L1/0041 ,  H04L1/0042 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0092 ,  H04L27/2626 ,  H04L27/3405 ,  H04W52/346

Abstract: Power allocation for encoded bits in OFDM systems. OFDM symbol subcarriers may be allocated to a wireless user equipment (UE) device by a base station. A first portion of the allocated subcarriers may include systematic bits and a second portion of the allocated subcarriers may include parity bits according to a coding scheme. Transmit power may be unevenly allocated to the subcarriers allocated to the UE, such that subcarriers including systematic bits are allocated different power than the subcarriers including parity bits. The OFDM symbols including the subcarriers allocated to the UE may be transmitted to the UE by the base station according to the allocated power distribution.

Abstract translation: OFDM系统中编码比特的功率分配。 OFDM符号子载波可以由基站分配给无线用户设备（UE）设备。 所分配的子载波的第一部分可以包括系统比特，并且所分配的子载波的第二部分可以包括根据编码方案的奇偶校验位。 发射功率可能不均匀地分配给分配给UE的子载波，使得包括系统比特的子载波被分配与包括奇偶校验位的子载波不同的功率。 包括分配给UE的子载波的OFDM符号可以由基站根据所分配的功率分布发送给UE。

公开(公告)号：US09179355B2

公开(公告)日：2015-11-03

申请号：US14150928

申请日：2014-01-09

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Sarma V Vangala ,  Samy Khay-Ibbat ,  Swaminathan Balakrishnan ,  Ajoy K Singh ,  Sree Ram Kodali ,  Rafael Rivera-Barreto ,  S Aon Mujtaba ,  Faraz Faheem ,  Sreevalsan Vallath

IPC: H04M11/00 ,  H04W28/02 ,  H04W24/08 ,  H04W28/08 ,  H04W72/04 ,  H04W88/02

CPC classification number: H04W24/08 ,  H04L43/0888 ,  H04L43/16 ,  H04W28/0236 ,  H04W28/0284 ,  H04W28/08 ,  H04W36/04 ,  H04W72/0486 ,  H04W72/085 ,  H04W88/02

Abstract: Estimating loading and potential available throughput a serving cell of a wireless user equipment (UE) device. Physical layer metrics of a channel on which the UE communicates with the serving cell may be measured. Cell utilization of the serving cell may be calculated based at least in part on the measured physical layer metrics. A maximum available throughput of the serving cell may be calculated based on the cell utilization.

Abstract translation: 估计无线用户设备（UE）设备的服务小区的负载和潜在可用吞吐量。 可以测量UE与服务小区通信的信道的物理层度量。 可以至少部分地基于所测量的物理层度量来计算服务小区的小区利用率。 可以基于小区利用率来计算服务小区的最大可用吞吐量。

公开(公告)号：US20150305056A1

公开(公告)日：2015-10-22

申请号：US14683493

申请日：2015-04-10

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Venkateswara Rao Manepalli ,  Madhusudan Chaudhary ,  Faraz Faheem ,  Syed Aon Mujtaba ,  Jianxiong Shi ,  Sreevalsan Vallath

IPC: H04W72/12 ,  H04L1/18

CPC classification number: H04W76/27 ,  H04L1/1832 ,  H04W28/0268 ,  H04W40/005 ,  H04W72/1242 ,  H04W84/042 ,  H04W88/02

Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.

公开(公告)号：US20150304955A1

公开(公告)日：2015-10-22

申请号：US14684593

申请日：2015-04-13

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Tarik Tabet ,  Madhusudan Chaudhary

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04W52/0274 ,  H04W28/18 ,  H04W76/27 ,  H04W76/28 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.

Abstract translation: 本公开涉及用于预先在无线设备和网络的网络元件之间调度无线电资源控制连接的技术。 根据一些实施例，无线设备可以向网络元件提供一种或多种类型的即将到来的数据业务的指示。 网络元件可以至少部分地基于一种或多种类型的即将到来的数据业务的指示来调度无线设备的一个或多个无线电资源控制连接。 网络元件可以向无线设备提供调度的无线电资源控制连接的指示。 无线设备和网络可以在预定时间建立调度的无线电资源控制连接。

公开(公告)号：US20150288475A1

公开(公告)日：2015-10-08

申请号：US14667745

申请日：2015-03-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang ,  Huarui Liang

IPC: H04J11/00 ,  H04L25/02 ,  H04W48/16 ,  H04W24/08

CPC classification number: H04J11/0079 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/0228 ,  H04W48/16

Abstract: This disclosure relates to performing cell measurements in unlicensed frequency bands and/or in channels with interference. According to some embodiments, a wireless user equipment (UE) device may define a reference symbol vector for a cell. Each respective element of the reference symbol vector may correspond to a respective subcarrier of the cell that carries a respective reference symbol. The UE may perform channel estimation at each respective element of the reference symbol vector. The UE may estimate the cell strength of the cell by cross-correlating channel estimates of different elements of the reference symbol vector.

Abstract translation: 本公开涉及在未经许可的频带和/或具有干扰的信道中执行小区测量。 根据一些实施例，无线用户设备（UE）设备可以定义小区的参考符号向量。 参考符号向量的每个相应元素可以对应于携带相应参考符号的小区的相应副载波。 UE可以在参考符号向量的每个相应元素处执行信道估计。 UE可以通过对参考符号向量的不同元素的信道估计进行相互相关来估计小区的小区强度。