Patents by Inventor Ralf Rossbach
Ralf Rossbach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250150218Abstract: Techniques, described herein, include solutions for managing hybrid automatic repeat request (HARQ) processes and communications for non-terrestrial networks (NTNs) (e.g., a wireless communication network that includes a satellite network component). A user equipment (UE) may receive a request for capability information of the UE and in response, transmit a message indicating the capability information of the UE, wherein the capability information includes HARQ disablement information indicating whether the UE supports disabled HARQ feedback.Type: ApplicationFiled: January 7, 2025Publication date: May 8, 2025Inventors: Haijing Hu, Sarma V. Vangala, Alexander Sirotkin, Chunxuan Ye, Dawei Zhang, Fangli Xu, Naveen Kumar R. Palle Venkata, Pavan Nuggehalli, Ralf Rossbach, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu
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Publication number: 20250142575Abstract: The present application relates to devices and components, including apparatus, systems, and methods for scheduling requests with considerations of unused transmission occasions.Type: ApplicationFiled: October 1, 2024Publication date: May 1, 2025Applicant: Apple Inc.Inventors: Ping-Heng Kuo, Haijing Hu, Ralf Rossbach
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Publication number: 20250142604Abstract: Techniques, described herein, include solutions for enabling inter-user equipment (UE) coordination (IUC) using media access control (MAC) control elements (CE). A first UE may send an IUC request to a second UE, and the second UE may respond with a MAC CE that includes IUC information. The IUC information may indicated one or more wireless resources that the first UE may use to communicate with the second UE. The IUC information may also include a time-domain validity for wireless resources, which may include one or more durations of time the wireless resources may be used for communication. The first UE may also implement a latency bound during which the second UE is to respond with the IUC information. In some implementations, discontinuous reception (DRX) may be used by the first and second UEs, and DRX active times of the UEs may be modified or configured to facilitate IUC.Type: ApplicationFiled: February 13, 2022Publication date: May 1, 2025Inventors: Haijing Hu, Zhibin Wu, Naveen Kumar R. Palle Venkata, Chunxuan Ye, Yuqin Chen, Fangli Xu, Pavan Nuggehalli, Ralf Rossbach, Alexander Sirotkin
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Patent number: 12284604Abstract: A user equipment (UE) is configured to join a standalone non-public network (SNPN). The receives SNPN information from one or more broadcast messages transmitted from a base station serving as an onboarding base station for the SNPN, determines whether the onboarding base station may be used for onboarding by the UE based on the SNPN information and UE SNPN information stored at the UE and onboards the UE to the SNPN when it is determined that the onboarding base station may be used for onboarding by the UE.Type: GrantFiled: May 10, 2021Date of Patent: April 22, 2025Assignee: Apple Inc.Inventors: Sarma V. Vangala, Fangli Xu, Haijing Hu, Naveen Kumar R. Palle Venkata, Ralf Rossbach, Sethuraman Gurumoorthy, Sree Ram Kodali, Srinivasan Nimmala, Srirang A. Lovlekar, Vijay Venkataraman, Yuqin Chen, Zhibin Wu
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Publication number: 20250119789Abstract: The present application relates to devices and components, including apparatus, systems, and methods for discarding packet data units (PDUs).Type: ApplicationFiled: September 18, 2024Publication date: April 10, 2025Applicant: APPLE INC.Inventors: Ping-Heng Kuo, Sudeep Manithara Vamanan, Ralf Rossbach, Waqar Zia, Haijing Hu
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Patent number: 12273201Abstract: A user equipment (UE) configured to receive a first cumulative acknowledgement (ACK) from a protocol stack of the UE at a first time, store the first cumulative ACK in a queue, receive a second cumulative ACK from the protocol stack at a second time, wherein the second time occurs after the first time, store the second cumulative ACK in the queue, discard the first cumulative ACK from the queue based on the second cumulative ACK being received after the first cumulative ACK and encapsulate the second cumulative ACK to form a radio link control (RLC) packet data unit (PDU) that is to be transmitted over the air.Type: GrantFiled: September 2, 2021Date of Patent: April 8, 2025Assignee: Apple Inc.Inventors: Sarma V. Vangala, Alexander Sirotkin, Dawei Zhang, Fangli Xu, Haijing Hu, Naveen Kumar R. Palle Venkata, Pavan Nuggehalli, Ralf Rossbach, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu
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Patent number: 12273882Abstract: An application layer in a device, a service data adaptation protocol (SDAP) layer in the device, and/or a media access control (MAC) layer in the device may determine that wireless communication resources allocated to the device need to be adjusted. The determination may be in response to detecting that a quality of the wireless connection of the device has deteriorated, or it may be based on advance knowledge of information pertaining to an application layer payload in the device. In response to the determination the device may transmit, in a MAC Control Element (MAC CE) to a base station, a request for an adjustment of the allocated wireless communication resources. The adjustment may lead to a temporary boost of resources for a limited period of time or to a persistent update of the allocated wireless communication resources.Type: GrantFiled: June 25, 2021Date of Patent: April 8, 2025Assignee: Apple Inc.Inventors: Ralf Rossbach, Fangli Xu, Sarma V. Vangala, Haijing Hu, Weidong Yang, Lakshmi Iyer, Sabine Roessel
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Patent number: 12273908Abstract: A transmitting device is configured to transmit, to a second device, a medium access control (MAC) protocol data unit (PDU) comprising a plurality of MAC subPDUs, each MAC subPDU comprising at least one of a subheader, a MAC service data unit (SDU) or a MAC control element (CE), receive, from the second device, feedback indicating that the MAC PDU was received incorrectly, determine that a partial transmission scheme criteria is satisfied, transmit, to the second device, an indication that the partial transmission scheme is to be used to retransmit the MAC PDU and retransmit, to the second device, the MAC PDU using the partial transmission scheme.Type: GrantFiled: June 7, 2021Date of Patent: April 8, 2025Assignee: Apple Inc.Inventors: Weidong Yang, Chunxuan Ye, Dawei Zhang, Fangli Xu, Haijing Hu, Haitong Sun, Hong He, Huaning Niu, Oghenekome Oteri, Ralf Rossbach, Sigen Ye, Wei Zeng
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Patent number: 12267903Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform a method for supporting a periodical radio access network (RAN) notification area (RNA) mechanism when small data transmission (SDT) is enabled for a user equipment device (UE). The method may include the UE receiving, from a base station, an indication enabling an SDT procedure along with an indication of an RNA timer configuration, transitioning, to a radio resource control (RRC) inactive state, and initiating an RNA timer based on the RNA timer configuration. The UE may, upon initiation of the SDT procedure, stop the RNA timer and, upon termination of the SDT procedure, start the RNA timer. During the SDT procedure, the UE may receive any of an SDT termination indication, an SDT subsequent transmission indication, or an SDT subsequent transmission termination indication that may include an updated RNA timer configuration (and/or RNA timer reconfiguration).Type: GrantFiled: January 14, 2021Date of Patent: April 1, 2025Assignee: Apple Inc.Inventors: Fangli Xu, Dawei Zhang, Haijing Hu, Murtaza A. Shikari, Ralf Rossbach, Sarma V. Vangala, Srinivasan Nimmala
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Patent number: 12267824Abstract: Provided is a method for a user equipment (UE), comprising: receiving request for scheduling assistance from a base station, wherein the request for scheduling assistance comprises scheduling configuration to be applied to a set of flows of a scheduled terminal on an application layer; informing the scheduled terminal of the scheduling configuration; receiving scheduling assistance information from the scheduled terminal, wherein the scheduling assistance information is generated by the scheduled terminal based on the set of flows of the scheduled terminal on the application layer; and transmitting the scheduling assistance information to the base station.Type: GrantFiled: February 19, 2021Date of Patent: April 1, 2025Assignee: APPLE INC.Inventors: Ralf Rossbach, Fangli Xu, Haijing Hu, Lakshmi Iyer, Sabine Roessel, Sarma V. Vangala, Sree Ram Kodali, Sudeep Manithara Vamanan
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Publication number: 20250105913Abstract: The present application relates to devices and components, including apparatus, systems, and methods for non-terrestrial networks with store and forward operation.Type: ApplicationFiled: August 23, 2024Publication date: March 27, 2025Applicant: APPLE INC.Inventors: Yuqin Chen, Haijing Hu, Ping-Heng Kuo, Naveen Kumar R. Palle Venkata, Fangli Xu, Alexander Sirotkin, Peng Cheng, Zhibin Wu, Ralf Rossbach
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Patent number: 12253611Abstract: The present application relates to devices and components including apparatus, systems, and methods for ephemeris signaling in wireless networks.Type: GrantFiled: August 4, 2021Date of Patent: March 18, 2025Assignee: Apple Inc.Inventors: Pavan Nuggehalli, Fangli Xu, Alexander Sirotkin, Chunxuan Ye, Haijing Hu, Naveen Kumar R. Palle Venkata, Ralf Rossbach, Sarma V. Vangala, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu
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Publication number: 20250081072Abstract: A user equipment (UE) may receive a downlink message from a non-terrestrial network (NTN) which may include one or more sets of terrestrial network (TN) cell reselection information. The one or more sets of TN cell reselection information may further include location information corresponding to one or more cells of the TN. The UE may determine its location and, in response to receiving the downlink message, compare its location to the location information corresponding to the one or more cells of the TN. The UE may then select, based on the comparison, a set of the one or more sets of TN cell reselection information and further perform a cell reselection procedure based on the selection.Type: ApplicationFiled: January 5, 2022Publication date: March 6, 2025Inventors: Pavan Nuggehalli, Alexander Sirotkin, Chunxuan Ye, Fangli Xu, Haijing Hu, Naveen Kumar R Palle Venkata, Ralf Rossbach, Sarma V Vangala, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu
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Patent number: 12245140Abstract: An approach is described for a base station to generate a first message and a second message. The base station transmits the first message and the second message to a user equipment (UE). The first message is associated with a cell supported by the base station and includes a first public land mobile network (PLMN) identity index and a first list of one or more network slices supported by a first PLMN associated with the first PLMN identity index. The second message is associated with one or more neighboring cells, and includes the first PLMN identity index and a second list of one or more network slice data associated the first PLMN as supported by the one or more neighboring cells. In addition, at least one of the one or more network slice data in the second list includes a sub-list of one or more neighboring cell data.Type: GrantFiled: January 13, 2021Date of Patent: March 4, 2025Assignee: APPLE INC.Inventors: Fangli Xu, Ralf Rossbach, Sudeep Manithara Vamanan, Mona Agnel, Krisztian Kiss, Sarma V. Vangala, Naveen Kumar R Palle Venkata, Zhibin Wu, Haijing Hu, Dawei Zhang, Yuqin Chen, Huarui Liang
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Patent number: 12245320Abstract: The functions of user equipment (UE), radio access network (RAN) devices, and core network (CN) devices in circumstances where a UE is expected to experience discontinuous coverage are described herein. A UE may send a CN a non-access stratum (NAS) message including a release request indicating that a UE is leaving coverage and assistance information. The CN may interrupt paging of the UE and resume the paging according to the assistance information. A UE may enter a low power usage mode upon leaving coverage, and may use one or more timers to determine when to check for coverage and send a mobility update message corresponding to the low power usage mode. A base station may receive, from a UE, a radio resource control (RRC) message comprising a release request and assistance information, send an RRC release message to the UE in response, and forward the assistance information to the CN.Type: GrantFiled: August 4, 2021Date of Patent: March 4, 2025Assignee: APPLE INC.Inventors: Pavan Nuggehalli, Alexander Sirotkin, Fangli Xu, Haijing Hu, Naveen Kumar R Palle Venkata, Ralf Rossbach, Sarma V. Vangala, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu
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Publication number: 20250071809Abstract: Apparatuses, systems, and methods for non-small data transmission (non-SDT) dedicated radio bearer (DRB) handling while in a radio resource control (RRC) inactive state. A wireless device may determine, while operating in the RRC inactive state, that non-SDT data is available for transmission on a non-SDT DRB and determine, based on one or more conditions, to transmit, to a base station, non-SDT data arrival information during an SDT procedure. The one or more conditions may be associated with arrival time of the non-SDT data and/or an amount of non-SDT data to be transmitted. The arrival time may be relative to arrival of SDT data, initiation of an SDT procedure, and/or initiation of a subsequent transmission period of an SDT procedure.Type: ApplicationFiled: September 3, 2024Publication date: February 27, 2025Inventors: Fangli Xu, Dawei Zhang, Haijing Hu, Murtaza A. Shikari, Ralf Rossbach, Sarma V. Vangala, Srinivasan Nimmala
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Publication number: 20250070996Abstract: A user equipment (UE) is configured to deactivate/activate a point-to-multipoint (PTM) link of a multicast radio bearer (MRB). The UE receives, from a base station of a wireless network, a multicast radio bearer (MRB) configuration, wherein the MRB includes configuration of a split MRB including a point to multipoint (PTM) link and a point to point (PTP) link, deactivates or activates the PTM link based on the MRB configuration, reestablishes a radio link control (RLC) associated with the PTM link and recovers a packet data convergence protocol (PDCP).Type: ApplicationFiled: November 12, 2024Publication date: February 27, 2025Inventors: Fangli XU, Dawei ZHANG, Haijing HU, Naveen Kumar R PALLE VENKATA, Ralf ROSSBACH, Sarma V VANGALA, Sethuraman GURUMOORTHY, Srirang A LOVLEKAR, Yuqin CHEN, Zhibin WU
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Publication number: 20250071779Abstract: The present application relates to devices and components including apparatuses, systems, and methods for technologies for managing discontinuous reception timers in wireless networks.Type: ApplicationFiled: January 12, 2022Publication date: February 27, 2025Applicant: Apple Inc.Inventors: Ralf Rossbach, Fangli Xu, Weidong Yang, Naveen Kumar R. Palle Venkata, Zhibin Wu, Alexander Sirotkin, Haijing Hu, Yuqin Chen, Pavan Nuggehalli
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Patent number: 12231942Abstract: Systems and methods for performing measurements of one or more cells during an small data transmission (SDT) procedure between a user equipment (UE) and a network when the UE is in a radio resource control (RRC) INACTIVE state are described herein. Beam and/or cell measurements taken during an SDT measurement period of the SDT procedure may be used to determine one or more respective cell qualities, among other possibilities. Beginnings and endings of the SDT measurement period, and the manner (timing) for taking measurements within the SDT measurement period, are also described. The cell qualities so determined can then be used to monitor, during the SDT measurement period, for a measurement event, which causes the UE to send a measurement report to the network having data determined using those cell qualities, and/or to send messaging intended to induce the network to change the RRC state of the UE.Type: GrantFiled: October 25, 2023Date of Patent: February 18, 2025Inventors: Fangli Xu, Dawei Zhang, Haijing Hu, Naveen Kumar R Palle Venkata, Ralf Rossbach, Sarma V. Vangala, Sethuraman Gurumoorthy, Srirang A. Lovlekar, Yuqin Chen, Zhibin Wu
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Patent number: 12231913Abstract: Systems and methods for using integrated access and backhaul (IAB) nodes configured to provide multi-access edge computing (MEC) functionality are disclosed herein. An TAB node includes a distributed unit (DU) having a local application instance of a MEC-enabled application. The local application instance is configured for communication with a first user equipment (UE) connected to the TAB node. A mobile termination functionality (MT) of the IAB node uses a packet data convergence protocol (PDCP) layer to transport data of the local application instance between the MT and an IAB donor. Further, data of the local application instance is transported between the UE and the TAB node via one of a variety of methods, including the use of a second PDCP layer at the DU (and optionally the use of service data adaptation protocol (SDAP) layers at each of the DU and the MT), and/or via sidelink.Type: GrantFiled: June 28, 2021Date of Patent: February 18, 2025Assignee: APPLE INC.Inventors: Sarma V. Vangala, Sudeep Manithara Vamanan, Fangli Xu, Haijing Hu, Krisztian Kiss, Mona Agnel, Naveen Kumar R Palle Venkata, Ralf Rossbach, Sethuraman Gurumoorthy, Yuqin Chen, Zhibin Wu