公开(公告)号：US11792874B2

公开(公告)日：2023-10-17

申请号：US16644352

申请日：2018-09-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Allan Y. Tsai ,  Guodong Zhang ,  Qing Li ,  Lakshmi R. Iyer ,  Yifan Li ,  Joseph M. Murray ,  Pascal M. Adjakple

IPC: H04W76/27 ,  H04W74/08

CPC classification number: H04W76/27 ,  H04W74/0833

Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of determining a radio link failure has occurred between a first bandwidth part (BWP) of the apparatus tuned to a base station. The processor also executes the instruction of initiating a random access (RA) procedure. The processor also executes the instruction of determining whether a configured contention-based physical random access channel (PRACH) resource overlaps with the first BWP. The process further executes the instruction of transmitting a RA preamble including the configured contention-based PRACH resource to the base station. The processor even further executes the instruction of receiving a RA response from the base station.

公开(公告)号：US11770821B2

公开(公告)日：2023-09-26

申请号：US16825516

申请日：2020-03-20

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Qing Li ,  Guodong Zhang ,  Pascal M. Adjakple ,  Lakshmi R. Iyer ,  Allan Y. Tsai ,  Qian Zhang ,  Wei Chen ,  Joseph M. Murray ,  Tianyi Xu

IPC: H04W72/12 ,  H04W72/1268 ,  H04L1/1867 ,  H04W74/08 ,  H04W4/70 ,  H04L5/00

CPC classification number: H04W72/1268 ,  H04L1/1887 ,  H04L5/0007 ,  H04W4/70 ,  H04W74/08 ,  H04W74/0816 ,  H04W72/1247

Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation, such that, when the plurality of devices transmit messages uplink in the network, the messages are transmitted using frequency resources defined by the respective grant-less access allocation, and the plurality of devices transmit the messages without being granted access to transmit the messages, so as to operate in the grant-less mode.

公开(公告)号：US20220416972A1

公开(公告)日：2022-12-29

申请号：US17847644

申请日：2022-06-23

Applicant: InterDigital Patent Holdings, Inc,

Inventor： Yifan Li ,  Lakshmi R. Iyer ,  Joseph M. Murray ,  Allan Y. Tsai ,  Guodong Zhang ,  Qing Li

IPC: H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W72/04

Abstract: In NR, a slot structure of a UE may be dynamic due the number of symbols of PDCCH and whether the slot has UL data, among other considerations. Additionally, to support multi-TRP/multi-panel/multi-BWP operation, a UE may be configured with multiple TRSs, and when a UE needs to receive multiple TRSs in the same slot, efficient signaling of the TRSs is important because of the high overhead involved. During a transmission, a UE may need to do beam switching when there is a beam failure, but existing systems do not have mechanisms for the UE to synchronize time and frequency with a new beam. Further, when a UE switches to a new beam, the effect on scheduled TRS transmission for old beams is unclear. Fine frequency and time tracking may also be required during an initial access procedure. Existing NR systems do not address how a UE may perform time and frequency tracking during an initial access procedure. Additionally, URLLC data may need to be transmitted to a UE immediately in an NR system. Existing NR systems do not address sending a TRS to a UE with URLLC data. Embodiments described herein address these and other issues.

公开(公告)号：US20150282177A1

公开(公告)日：2015-10-01

申请号：US14437429

申请日：2013-10-22

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Lijun Dong ,  Michael F. Starsinic ,  Zongrui Ding ,  Chonggang Wang ,  Qing Li

IPC: H04W72/04 ,  H04L12/751

CPC classification number: H04L45/026 ,  H04L41/0893 ,  H04L41/5022 ,  H04L43/0811 ,  H04L43/103 ,  H04L67/145 ,  H04L69/28 ,  H04W72/0453

Abstract: A method and apparatus are described for negotiating “keep-alive” message frequencies of applications running on a wireless transmit/receive unit (WTRU). A node may include a negotiation and synchronization function (NSF) configured to collect information including frequencies of keep-alive messages required by application servers for different applications running on the WTRU, and send a keep-alive message frequency negotiation request message to the application servers to negotiate for a more proper frequency for each application on behalf of the WTRU. The node may further include a buffering and caching function (BCF) configured to cache and buffer application specific attributes including an indication of whether each of the applications needs to send periodic keep-alive messages to an associated application server. The node may be a packet data network gateway, a negotiation and caching gateway, or a serving gateway.

Abstract translation: 描述了用于协商在无线发射/接收单元（WTRU）上运行的应用的“保持活动”消息频率的方法和装置。 节点可以包括协商和同步功能（NSF），其被配置为收集包括应用服务器对在WTRU上运行的不同应用所需的保持活动消息的频率的信息，并且向应用服务器发送保持活着的消息频率协商请求消息 为每个应用程序代表WTRU协商一个更合适的频率。 节点还可以包括缓冲和缓存功能（BCF），其被配置为缓存和缓冲应用特定属性，包括每个应用是否需要向相关联的应用服务器发送周期性保持活动消息的指示。 节点可以是分组数据网络网关，协商和缓存网关或服务网关。

公开(公告)号：US20130279373A1

公开(公告)日：2013-10-24

申请号：US13865792

申请日：2013-04-18

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Zongrui Ding ,  Michael F. Starsinic ,  Chonggang Wang ,  Kamel M. Shaheen ,  Guang Lu ,  Dale N. Seed ,  Qing Li ,  Lijun Dong

IPC: H04M15/00

CPC classification number: H04M15/56 ,  H04M15/63 ,  H04M15/8228 ,  H04W4/70

Abstract: A method and apparatus are described for providing triggering services over multiple access networks. A triggering service server (TSS) architecture includes a triggering identity function (TIF) which maintains a database of device and application identifier mappings across multiple access networks, triggering capabilities and triggering preferences. The TSS also includes a triggering decision function (TDF) that uses information from the TIF and determines how triggers should be performed towards a device and/or an application hosted on a particular device. The TSS also includes triggering gateways (T-GWs) that perform triggering in different domains. A “not-registered-triggerable” state may be used to indicate whether an entity, such as a device, application or user can receive triggers although it is not registered in a specific access network. Methods and apparatus are also described for implementing various unassisted triggering and assisted triggering procedures using wireless transmit/receive units (WTRUs), application servers (ASs) and service capability servers (SCSs).

Abstract translation: 描述了一种用于在多个接入网络上提供触发服务的方法和装置。 触发服务服务器（TSS）架构包括触发身份功能（TIF），其维护跨多个接入网络的设备和应用标识符映射的数据库，触发能力和触发偏好。 TSS还包括使用来自TIF的信息的触发判定功能（TDF），并确定如何对设备和/或特定设备上托管的应用程序执行触发器。 TSS还包括在不同域执行触发的触发网关（T-GW）。 可以使用“未注册的可触发”状态来指示诸如设备，应用或用户之类的实体是否可以接收触发器，尽管它没有在特定接入网络中注册。 还描述了用于实现使用无线发射/接收单元（WTRU），应用服务器（AS）和服务能力服务器（SCS））的各种无辅助触发和辅助触发过程的方法和装置。