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公开(公告)号：US20140200040A1
公开(公告)日：2014-07-17
申请号：US14061991
申请日：2013-10-24
Applicant: Apple Inc.
Inventor： Wael S. Barakat , Chandra S. Chetty , Johnson O. Sebeni , Raghuveer Mallikarjunan , Swaminathan Balakrishnan , Tahir Shamim
CPC classification number: H04W68/02
Abstract: Enabling receive diversity based on detecting incorrect paging message length. A paging channel may be monitored. An indication of a paging message may be received on the paging channel. The paging message may include a message length field indicating a message length of the paging message. The message length field of the paging message may be received on the paging channel and decoded. It may be determined that the message length indicated in the message length field is incorrect. Receive diversity may be enabled for at least one subsequent paging occasion in response to determining that the message length indicated in the message length field is incorrect.
Abstract translation: 基于检测到不正确的寻呼消息长度，实现接收分集。 可以监视寻呼信道。 可以在寻呼信道上接收寻呼消息的指示。 寻呼消息可以包括指示寻呼消息的消息长度的消息长度字段。 可以在寻呼信道上接收寻呼消息的消息长度字段并进行解码。 可以确定消息长度字段中指示的消息长度不正确。 响应于确定消息长度字段中指示的消息长度不正确，可以为至少一个后续寻呼时机启用接收分集。
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公开(公告)号：US20140073307A1
公开(公告)日：2014-03-13
申请号：US13683959
申请日：2012-11-21
Applicant: APPLE INC.
Inventor： Wanping Zhang , Tahir Shamim , Swaminathan Balakrishnan
IPC: H04W80/00
Abstract: In order to reduce the time delay when transitioning between different communication protocols used to communicate information via a cellular-telephone network, an electronic device (such as a cellular telephone) may only partially disable a software stack associated with a current communication protocol. In particular, after receiving an indicator that there is a message to be communicated using a second communication protocol while the electronic device is currently configured to communicate using a first communication protocol, the electronic device may disable a portion of a software stack associated with the first communication protocol and may enable a software stack associated with the second communication protocol. Then, the electronic device communicates the message using the second communication protocol. Next, the electronic device: may disable the software stack associated with the second communication protocol and may enable the portion of the software stack associated with the first communication protocol.
Abstract translation: 为了减少在用于通过蜂窝电话网络传送信息的不同通信协议之间的转换时的时间延迟，电子设备（例如，蜂窝电话）可能仅部分地禁用与当前通信协议相关联的软件栈。 具体地，在电子设备当前被配置为使用第一通信协议进行通信时，在接收到指示符之后，使用第二通信协议存在将要通信的消息，电子设备可以禁用与第一通信协议相关联的软件栈的一部分 通信协议并且可以实现与第二通信协议相关联的软件栈。 然后，电子设备使用第二通信协议来传送消息。 接下来，电子设备：可以禁用与第二通信协议相关联的软件栈，并且可以启用与第一通信协议相关联的软件栈的部分。
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公开(公告)号：US20200244331A1
公开(公告)日：2020-07-30
申请号：US16743459
申请日：2020-01-15
Applicant: Apple Inc.
Inventor： Sai Sravan Bharadwaj Karri , Swaminathan Balakrishnan , Junsung Lim , Haitong Sun , Johnson O. Sebeni , Faraz Faheem
IPC: H04B7/06 , H04B7/0417 , H04B7/0456
Abstract: Apparatuses, systems, and methods for a wireless device to encode channel state information (CSI), e.g., enhanced type II CSI. A common frequency basis may be selected. Spatial-frequency coefficients, frequency basis related information, and/or spatial basis related information may be determined. At least a portion of the coefficients and/or information may be encoded in a CSI report.
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24.发明授权公开(公告)号：US10575315B2
公开(公告)日：2020-02-25
申请号：US14503204
申请日：2014-09-30
Applicant: APPLE INC.
Inventor： Sarma V. Vangala , Swaminathan Balakrishnan , Tarik Tabet , Samy Khay-Ibbat , Rafael L. Rivera-Barreto , Dawei Zhang , Sree Ram Kodali
Abstract: A system, devices and methods for providing input from a user equipment (UE) for the selection of a carrier channel combination for use in carrier aggregation. The exemplary system includes a UE configured to perform carrier aggregation, the UE storing a radio frequency (RF) calibration table including a plurality of transmission related requirements specific to the UE, the UE configured to generate priority data for each carrier channel combination supported for use in carrier aggregation based upon the RF calibration table and a network component receiving the priority data and an indication from the UE, the network component configured to select a carrier channel combination for use in carrier aggregation based upon the priority data, the network component transmitting carrier aggregation configuration data including the selected carrier channel combination to the UE.
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公开(公告)号：US20190306793A1
公开(公告)日：2019-10-03
申请号：US16442730
申请日：2019-06-17
Applicant: Apple Inc.
Inventor： Tianyan Pu , Sai Sravan Bharadwaj Karri , Wei Zhang , Swaminathan Balakrishnan , Xiantao Sun , Beibei Wang , Manish G. Vemulapalli , Jia Tang , Sami M. Almalfouh , Zhu Ji , Sachin J. Sane
IPC: H04W52/02 , H04B7/0456
Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.
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Patent Agency Ranking
26.发明授权公开(公告)号：US10200897B2
公开(公告)日：2019-02-05
申请号：US15476632
申请日：2017-03-31
Applicant: Apple Inc.
Inventor： Sami M. Almalfouh , Li Su , Sai Sravan Bharadwaj Karri , Chiranjeevi M. Kosuri , Karthik Chockalingam , Swaminathan Balakrishnan
IPC: H04W24/08 , H04W56/00 , H04W76/10 , H04B17/336
Abstract: This disclosure relates to radio link monitoring techniques. According to some embodiments, a wireless device may establish a radio link with a cellular base station according to a radio access technology. The base station may provide reference signals, control signals, and data signals to the wireless device via the radio link. The wireless device may perform radio link monitoring of the radio link using characteristics of decoding performance for one or more of the control signals and the data signals. Performing radio link monitoring of the radio link may include determining whether the radio link is in-sync or out-of-sync and determining whether radio link failure has occurred.
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公开(公告)号：US10142065B2
公开(公告)日：2018-11-27
申请号：US15160498
申请日：2016-05-20
Applicant: Apple Inc.
Abstract: This disclosure relates to techniques for enabling a user equipment (UE) to determine which cell to attach to in a heterogeneous network (HetNet). The UE may determine, based on the quality of the downlink (DL) channel and/or on the type of traffic between the UE and a current base station, whether to attach to a small cell base station or an overlay macro base station in the cellular network. Particularly, the UE may determine whether to use a received mobility offset during cell reselection in response to a measured quality of the DL channel.
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公开(公告)号：US10057830B2
公开(公告)日：2018-08-21
申请号：US15633033
申请日：2017-06-26
Applicant: Apple Inc.
Inventor： Karthik Chockalingam , Sai Sravan Bharadwaj Karri , Swaminathan Balakrishnan , Sachin J. Sane
CPC classification number: H04W36/30 , H04W36/0055 , H04W36/0058 , H04W36/0088
Abstract: Method and apparatus to trigger a handover of a mobile device from a serving cell to a neighbor cell based on signal quality are disclosed. The mobile device measures signal strength and signal quality for the serving cell. When the signal strength exceeds a network-defined threshold and the signal quality falls below a mobile device defined threshold, the mobile device measures at least one neighbor cell. When a neighbor cell exceeds the network-defined threshold for signal strength and also meets the mobile device defined signal quality threshold, the mobile device sends a measurement report to the serving cell to trigger the handover. The measurement report includes modified values that indicate the serving cell does not meet network-defined threshold values and that the neighbor cell outperforms the serving cell.
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29.发明授权公开(公告)号：US09603074B2
公开(公告)日：2017-03-21
申请号：US14503220
申请日：2014-09-30
Applicant: APPLE INC.
Inventor： Swaminathan Balakrishnan , Samy Khay-Ibbat , Sarma V. Vangala , Tarik Tabet , Rafael L. Rivera-Barreto , Sree Ram Kodali , Sai Sravan Bharadwaj Karri
CPC classification number: H04W36/24 , H04L5/001 , H04L5/0035 , H04L5/0098 , H04W36/0088 , H04W36/06
Abstract: A user equipment (UE) configured to connect to a network and operate in a carrier aggregation mode and a single carrier mode performs methods to select optimal component carriers. The methods include determining that a primary component carrier is operating less optimally than a secondary component carrier, sending an indication to the network that the primary component carrier is operating less optimally than the secondary component carrier, acquiring the secondary component carrier as a target primary component carrier and operating with the secondary component carrier as the target primary carrier component. In one exemplary embodiment, the indication is declaring a radio link failure (“RLF”) between the UE and the network. In another exemplary embodiment, the indication is a measurement report send to the network that triggers a handover procedure for the UE.
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公开(公告)号：US09585068B2
公开(公告)日：2017-02-28
申请号：US14049894
申请日：2013-10-09
Applicant: Apple Inc.
Inventor： Tarik Tabet , Sarma V. Vangala , Sreevalsan Vallath , Swaminathan Balakrishnan
CPC classification number: H04W36/0083 , H04W36/06 , H04W36/30 , H04W52/14 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/166 , Y02D70/23
Abstract: A method for triggering cell transition in an uplink power limited condition is disclosed. The method can include a wireless communication device determining that the wireless communication device is experiencing an uplink power limited condition; deriving a modified downlink channel quality measurement by adjusting a measured downlink channel quality to indicate a lower downlink channel quality than the measured downlink channel quality; generating a measurement report including the modified downlink channel quality measurement; and sending the measurement report to the serving cell to trigger transition of the wireless communication device from the serving cell to a second cell.
Abstract translation: 公开了一种在上行链路功率限制条件下触发小区转换的方法。 该方法可以包括确定无线通信设备正在经历上行链路功率限制条件的无线通信设备; 通过调整测量的下行链路信道质量以指示比所测量的下行链路信道质量低的下行链路信道质量来导出修改的下行链路信道质量测量; 生成包括修改的下行链路信道质量测量的测量报告; 以及将所述测量报告发送到所述服务小区以触发所述无线通信设备从所述服务小区到第二小区的转换。
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