公开(公告)号：US11503461B2

公开(公告)日：2022-11-15

申请号：US16612085

申请日：2018-02-13

Applicant: QUALCOMM Incorporated

Inventor： Huichun Liu ,  Keiichi Kubota ,  Soo Bum Lee

IPC: H04W12/037 ,  H04W76/27 ,  H04L9/14 ,  H04W72/04 ,  H04W12/106 ,  H04W12/0431 ,  H04W80/02

Abstract: Techniques for refreshing security keys for enciphering and deciphering packets in a wireless communications system are provided. An exemplary method generally includes transmitting, while in a state with no dedicated resources allocated to the UE, a first message to request resumption of a radio resource control (RRC) connection, the first message encrypted using a first set of one or more keys, receiving, in response to the first message, a second message encrypted using the first set of one or more keys or a second set of one or more keys, determining, based on an indication in the second message or received prior to the second message, whether portions of the second message are encrypted using the second set of one or more keys, and processing the second message using the first set of one or more keys or the second set of one or more keys, based on the determination.

公开(公告)号：US11444879B2

公开(公告)日：2022-09-13

申请号：US16678174

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Huichun Liu ,  Xipeng Zhu ,  Gavin Bernard Horn

IPC: H04L1/00 ,  H04L47/2483 ,  H04L45/302 ,  H04L43/00 ,  H04L67/63 ,  H04L67/568 ,  H04W76/12 ,  H04L43/10

Abstract: Systems and techniques are disclosed to reduce workload on base stations in a mobile network when content delivery networks cache content inside the network. A user equipment sets a flag only with those packets on the uplink which include requests that should be routed to the cache server inside the mobile network. The base stations perform deep packet inspection of those packets where flags have been set and forward other packets on to the rest of the relevant backhaul of the mobile network. After deep packet inspection, the base stations either route the packet to the cache server via an established connection or propagate the flag in an extension header to another network node for routing to the cache server. The resulting content is returned to the UE with the source address of the originally intended destination instead of the cache server, rendering the process transparent to the end user.

公开(公告)号：US11277332B2

公开(公告)日：2022-03-15

申请号：US16333500

申请日：2017-04-20

Applicant: Qualcomm Incorporated

Inventor： Xipeng Zhu ,  Ruiming Zheng ,  Rulin Xing ,  Huichun Liu ,  Thomas Stockhammer ,  Stefano Faccin ,  Kuo-Chun Lee ,  Feilu Liu ,  Yu-Ting Yu

IPC: H04L12/707 ,  H04W76/15 ,  H04L12/801 ,  H04W28/02 ,  H04W88/02 ,  H04L45/00 ,  H04L47/193

Abstract: A user equipment (UE) may identify a bearer (e.g., a default bearer) and request establishment of a second bearer (e.g., a high priority bearer) for use in streaming downlink data from, for example, an application server. The UE may determine a status of a playout buffer and select the first bearer or the second bearer for use in streaming the downlink data associated with the application based on the status of the playout buffer. For example, the first bearer may be used be used by default, and the second bearer may be selected if the amount of data in the playout buffer does not satisfy (e.g., is below) a threshold. In some cases, each bearer may be associated with a transmission control protocol (TCP) port associated with a TCP connection. In some cases, each bearer may be associated with different Internet protocol (IP) address.

公开(公告)号：US20200229021A1

公开(公告)日：2020-07-16

申请号：US16500763

申请日：2018-03-26

Applicant: Ruiming ZHENG ,  Xipeng ZHU ,  Huichun LIU ,  Qualcomm Incorporated

Inventor： Ruiming Zheng ,  Xipeng Zhu ,  Huichun Liu

IPC: H04W28/02 ,  H04W88/16 ,  H04W80/02 ,  H04W80/08 ,  H04W76/12

Abstract: Wireless communications systems as described herein may be configured to provide user equipment (UE) assisted information for caching data at a network node external to a core network (CN). In some cases, the UE may provide an acceleration indicator (AI) that a base station may receive and identify as caching information. The base station, upon identifying that the AI is present in an uplink packet, may transmit the packet to a gateway having a local cache. If the uplink packet does not have an AI, the base station may route the uplink packet according to an address (e.g., a uniform resource locator (URL)) contained in the packet.