公开(公告)号：US10728739B2

公开(公告)日：2020-07-28

申请号：US16128127

申请日：2018-09-11

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Miguel Griot ,  Sebastian Speicher ,  Haris Zisimopoulos ,  Soo Bum Lee

IPC: H04W8/18 ,  H04W52/02 ,  H04L29/06 ,  H04W48/18 ,  H04W28/06 ,  H04L29/08 ,  H04W28/02 ,  H04W4/70 ,  H04W12/00 ,  H04W8/02 ,  H04W12/04 ,  H04W76/27 ,  H04W80/04

Abstract: A core network receives data from at least one of an Application Function (AF), a Data Network (DN), or a User Equipment (UE). A Session Management Function (SMF) processes the data for transport with a low overhead as a session management (SM) payload over a Non Access Stratum (NAS) protocol. The data may be received from an AF or DN external to the core network and may be processed to transport the data to the UE based as a SM payload. The data may be received as uplink data from a UE, e.g., in an SM payload. The SMF may processed the SM payload to obtain the data and may transport the data to the AF or DN. The SMF may perform IP header compression, data encryption based on an SMF encryption key, and/or buffering of data for a UE in an idle mode.

公开(公告)号：US20200236554A1

公开(公告)日：2020-07-23

申请号：US16743927

申请日：2020-01-15

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Ozcan Ozturk ,  Gavin Bernard Horn ,  Adrian Edward Escott ,  Anand Palanigounder

IPC: H04W12/10 ,  H04W12/00 ,  H04W12/06 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, devices may use information protection to detect fake base stations. A base station verified by a network may transmit first information to a user equipment (UE) in an unprotected message. If a fake base station intercepts and modifies the message before relaying the message to the UE, the UE may receive different information than the transmitted first information. The UE may then transmit an indication of the received information to the verified base station in a protected message. In some cases, based on the indication, the verified base station may re-transmit the first information to the UE in a message protected against modification by the fake base station. If the UE determines that the initially received information is different from the information received in the protected retransmission, the UE identifies message modification by the fake base station.

公开(公告)号：US10708773B2

公开(公告)日：2020-07-07

申请号：US16366335

申请日：2019-03-27

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Adrian Edward Escott ,  Lenaig Genevieve Chaponniere

IPC: H04W12/04 ,  H04L9/08 ,  H04L29/06 ,  H04W76/25 ,  H04W8/26 ,  H04W12/06 ,  H04W12/10 ,  H04W60/04 ,  H04W12/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine that a security context with a network node has been established for more than a threshold time period. The UE may identify, based on a key hierarchy, a parent network node associated with the network node. The UE may transmit a key refresh request message to the parent network node to trigger a key refresh procedure between the parent network node and the network node. The UE may perform a procedure with the network node to establish a new security context based on the key refresh procedure.

公开(公告)号：US10700961B2

公开(公告)日：2020-06-30

申请号：US16358629

申请日：2019-03-19

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Stefano Faccin ,  Haris Zisimopoulos

IPC: H04L12/26 ,  H04L12/721 ,  H04L12/833 ,  H04L29/08 ,  H04L29/06 ,  H04W28/02 ,  H04W12/08 ,  H04W72/08 ,  H04W28/16 ,  H04W84/04 ,  H04W88/16

Abstract: A method, operational at a device, includes receiving at least one packet belonging to a first set of packets of a packet flow marked with an identification value, determining that the at least one packet is marked with the identification value, determining to change a quality of service (QoS) treatment of packets belonging to the first set of packets marked with the identification value that are yet to be received, and sending a request to change the QoS treatment of packets belonging to the first set of packets marked with the identification value that are yet to be received to trigger a different QoS treatment of packets within the packet flow, responsive to determining to change the QoS treatment. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20200015310A1

公开(公告)日：2020-01-09

申请号：US16575200

申请日：2019-09-18

Applicant: QUALCOMM Incorporated

Inventor： Adrian Edward Escott ,  Mungal Singh Dhanda ,  Anand Palanigounder ,  Soo Bum Lee

IPC: H04W76/19 ,  H04W36/00

Abstract: One feature pertains to a method that includes establishing a radio communication connection with a first radio access node (RAN) that uses control plane signaling connections to carry user plane data. The method also includes determining that the wireless communication device is experiencing radio link failure (RLF) with the first RAN and that the radio communication connection should be reestablished with a second RAN. A reestablishment request message is transmitted to the second RAN that includes parameters that enable a core network node communicatively coupled to the second RAN to authenticate the wireless communication device and allow or reject reestablishment of the radio communication connection. The parameters include at least a message authentication code (MAC) based in part on one or more bits of a non-access stratum (NAS) COUNT value maintained at the wireless communication device.

公开(公告)号：US20190215263A1

公开(公告)日：2019-07-11

申请号：US16358629

申请日：2019-03-19

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Stefano Faccin ,  Haris Zisimopoulos

IPC: H04L12/721 ,  H04L29/06 ,  H04L12/833 ,  H04W72/08 ,  H04L29/08 ,  H04W12/08 ,  H04L12/26 ,  H04W28/02

Abstract: A method, operational at a device, includes receiving at least one packet belonging to a first set of packets of a packet flow marked with an identification value, determining that the at least one packet is marked with the identification value, determining to change a quality of service (QoS) treatment of packets belonging to the first set of packets marked with the identification value that are yet to be received, and sending a request to change the QoS treatment of packets belonging to the first set of packets marked with the identification value that are yet to be received to trigger a different QoS treatment of packets within the packet flow, responsive to determining to change the QoS treatment. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US10341239B2

公开(公告)日：2019-07-02

申请号：US15009188

申请日：2016-01-28

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Gavin Bernard Horn ,  John Wallace Nasielski ,  Stefano Faccin

IPC: H04L12/813 ,  H04L12/24 ,  H04W48/16 ,  H04L29/06 ,  H04W88/16 ,  H04L29/08

Abstract: A gateway device detects a trigger associated with a device and, in response, identifies an application service associated with the device, obtains a traffic network policy associated with the application service, and obtains a network access token based on the traffic network policy. The network access token facilitates validating and/or mapping a downlink data packet obtained at the gateway device in user-plane traffic that is destined for the device. The network access token is sent to an entity in control-plane signaling. Subsequently, the gateway device obtains a downlink data packet including the network access token. The gateway device verifies the network access token and/or maps the downlink data packet to the device using data obtained from the network access token. The network access token may be removed from the downlink data packet before the downlink data packet is sent to the device according to the mapping.

公开(公告)号：US10313878B2

公开(公告)日：2019-06-04

申请号：US15485976

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Adrian Edward Escott ,  Lenaig Genevieve Chaponniere

IPC: H04L9/08 ,  H04W8/26 ,  H04L29/06 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W76/25 ,  H04W60/04

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine that a security context with a network node has been established for more than a threshold time period. The UE may identify, based on a key hierarchy, a parent network node associated with the network node. The UE may transmit a key refresh request message to the parent network node to trigger a key refresh procedure between the parent network node and the network node. The UE may perform a procedure with the network node to establish a new security context based on the key refresh procedure.

公开(公告)号：US10298549B2

公开(公告)日：2019-05-21

申请号：US15199924

申请日：2016-06-30

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Anand Palanigounder ,  Adrian Edward Escott

IPC: H04L29/06 ,  H04L29/08 ,  H04W88/16 ,  H04L12/24 ,  H04L9/08 ,  H04L9/14 ,  H04W4/70 ,  H04W12/04 ,  H04W12/10

Abstract: Aspects of security schemes (e.g., integrity protection, encryption, or both) are described. A measure of access stratum security can be realized without overhead associated with establishing and/or maintaining the per-cellular-device access stratum security context at a Cellular Internet of Things (CIoT) base station (C-BS). A gateway (e.g., a CIoT Serving Gateway Node (C-SGN)) may derive a first key. The first key may be only known to the C-SGN. The C-SGN may derive a second key from the first key and a parameter unique to the C-BS. The C-SGN may also derive a third key from the second key and an identity of a cellular device. The C-SGN may send the second and third keys to the C-BS and cellular device, respectively. Small data messages encrypted and/or integrity protected by the cellular device may be decrypted and/or verified by the C-BS.

公开(公告)号：US10264515B2

公开(公告)日：2019-04-16

申请号：US14807820

申请日：2015-07-23

Applicant: QUALCOMM Incorporated

Inventor： Gavin Bernard Horn ,  Stefano Faccin ,  Soo Bum Lee

IPC: H04W48/14 ,  H04W48/16 ,  H04W48/20 ,  H04L29/06 ,  H04L29/08 ,  H04W48/02

Abstract: A client device may determine whether to obtain an element of information related to a service parameter from an access node. The access node may be associated with a plurality of connectivity access networks. The element of information can be selected and associated with a query. The query can be derived and configured according to one of a plurality of modes. The query can be sent as an over-the-air message to the access node. A service query protocol (SQP) server may be coupled to the access node. The query may be obtained at the SQP server from client device via the access node. A response to the query may be derived based on the element of information associated with the query and the mode of the query. The response may be sent from the access node to the client device.