公开(公告)号：US20200154417A1

公开(公告)日：2020-05-14

申请号：US16711682

申请日：2019-12-12

Applicant: Apple Inc.

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

IPC: H04W72/04

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 an announcement information block (MB) in a downlink shared data channel (e.g., PDSCH), wherein the AIB contains information useable by a UE in determining the location of system information in the downlink shared data channel. The UE can thus determine the location of and decode system information without having to decode a downlink control channel (e.g., PDCCH). This may be important for certain classes of devices, such as link budget limited devices, which have issues in decoding the downlink control channel. Improved paging scheduling techniques are also disclosed which more efficiently use PDCCH paging resources.

公开(公告)号：US10602483B2

公开(公告)日：2020-03-24

申请号：US14870395

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Paul V. Flynn ,  Syed Aon Mujtaba ,  Vinay R. Majjigi ,  Wen Zhao ,  Xiaowen Wang

IPC: H04W68/12 ,  H04W60/00 ,  H04W88/06 ,  H04W36/14 ,  H04L29/12 ,  H04W8/04 ,  H04W76/16

Abstract: Embodiments relate to apparatus, systems, and methods for reception of calls on a mobile device that includes Wi-Fi and cellular radios. The mobile device may be configured to establish communication on a Wi-Fi network with a cellular carrier. The mobile device may further be configured to register a first IP address with an IMS server for the Wi-Fi network communication and register a second IP address with the IMS server for the cellular network communication (or register different ports of a single IP address with Wi-Fi and cellular). Upon occurrence of a mobile terminating call from the cellular carrier, the mobile device may receive an incoming call notification on one or both of the Wi-Fi network using the first IP address and the cellular network using the second IP address.

公开(公告)号：US10567186B2

公开(公告)日：2020-02-18

申请号：US15137870

申请日：2016-04-25

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Joonsuk Kim ,  Chiu Ngok E. Wong ,  Yong Liu ,  Su Khiong Yong ,  Christiaan A. Hartman ,  Syed Aon Mujtaba ,  Ye Sun ,  Shu Du ,  Wen Zhao

IPC: H04W4/06 ,  H04L12/18 ,  H04B7/0452 ,  H04W84/12

Abstract: A method for receiving feedback on a quality of multicast transmissions in a Wireless Local Access Network (WLAN) including a source electronic device (e.g., an access point) and a plurality of electronic devices is disclosed, according to some embodiments. The method can include (i) transmitting a plurality of multicast packets addressed to a subset of the plurality of electronic devices by the source electronic device; (ii) concurrently polling the subset of the plurality of electronic devices by the source electronic device; and (iii) receiving a plurality of block acknowledgements (BAs) from at least the subset of the plurality of electronic devices by the source electronic device. Each BA may include information on a quality of reception of two or more multicast packets received at an electronic device.

公开(公告)号：US10433211B2

公开(公告)日：2019-10-01

申请号：US15593702

申请日：2017-05-12

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Lydi Smaini ,  Tarik Tabet ,  Syed Aon Mujtaba

IPC: H04W28/08 ,  H04W16/14 ,  H04W72/04

Abstract: A wireless communication device (UE) may monitor grants received from respective cells associated with one or more first (e.g. licensed) frequency band(s) and one or more second (e.g. unlicensed) frequency band(s). Based on the received grants the UE may determine if an imbalance exists in the radio resource allocation, whereby the UE communicates more than intended in the second frequency band(s). The imbalance may be specified with respect to the ratio or portion of the communications that are conducted in the second frequency band(s) with respect to all wireless communications of the UE. If the UE detects an imbalance, it may transmit a report to the network (e.g. to the base station serving the UE) indicating unfavorable conditions for the UE to be operating in the second frequency band(s). In response, the network may disable the respective cell(s) associated with the second frequency band(s) and/or it may disable carrier aggregation for the UE.

公开(公告)号：US10356819B2

公开(公告)日：2019-07-16

申请号：US15230090

申请日：2016-08-05

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Yong Liu ,  Joonsuk Kim ,  Christiaan A. Hartman ,  Chiu Ngok E. Wong ,  Syed Aon Mujtaba ,  Matt Semersky ,  Su Khiong Yong

IPC: H04W74/08

Abstract: Disclosed herein are system, method, and computer program product embodiments for enabling a spatial reuse opportunity at a high efficiency (HE) station and a network allocation vector (NAV) reset capability at a legacy station using a Request to Send and/or Clear to Send (RTS and/or CTS) frame. For example, the method can include receiving a RTS frame with a redefined field that specifies spatial reuse information. The NAV can be set based on the RTS frame. The method can determine whether a second frame was received within a threshold time after a Short Interframe Space (SIFS). Finally, the method can reset the NAV based on whether the second frame was received within the threshold time.

公开(公告)号：US10194462B2

公开(公告)日：2019-01-29

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 ,  H04B7/06 ,  H04L1/18 ,  H04W74/08 ,  H04W72/12 ,  H04W72/14 ,  H04L1/16

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.

公开(公告)号：US20180324659A1

公开(公告)日：2018-11-08

申请号：US16037788

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

CPC classification number: H04W36/0083 ,  H04B17/336 ,  H04B17/382 ,  H04W36/0058 ,  H04W36/00837

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US20180324658A1

公开(公告)日：2018-11-08

申请号：US16037732

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US10091775B2

公开(公告)日：2018-10-02

申请号：US15175102

申请日：2016-06-07

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W48/12

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 an announcement information block (AIB) in a downlink shared data channel (e.g., PDSCH), wherein the AIB contains information useable by a UE in determining the location of system information in the downlink shared data channel. The UE can thus determine the location of and decode system information without having to decode a downlink control channel (e.g., PDCCH). This may be important for certain classes of devices, such as link budget limited devices, which have issues in decoding the downlink control channel. Improved paging scheduling techniques are also disclosed which more efficiently use PDCCH paging resources.

公开(公告)号：US10064170B2

公开(公告)日：2018-08-28

申请号：US15076967

申请日：2016-03-22

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0053

Abstract: This disclosure relates to techniques for transmitting and receiving control information in the common search space on an enhanced physical downlink control channel (EPDCCH). According to some embodiments, a cellular base station may allocate some resource blocks of a subframe as the EPDCCH. The cellular base station may provide control information on a common search space in the EPDCCH for wireless user equipment (UE) devices in the cell provided by the cellular base station during a subframe. A UE device may monitor the EPDCCH to determine whether any indication on the common search space decodable by the UE device is contained in the EPDCCH, and may decode such information if present.