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公开(公告)号:US11102839B2
公开(公告)日:2021-08-24
申请号:US16665555
申请日:2019-10-28
Applicant: QUALCOMM Incorporated
Inventor: Zhibin Wu , Hong Cheng , Sudhir Kumar Baghel , Shailesh Patil , Kapil Gulati , Arjun Bharadwaj , Tien Viet Nguyen , Shuanshuan Wu
Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may establish a unicast connection over a sidelink communications with a second UE. To establish the unicast connection over the sidelink, the first UE may transmit a request message (e.g., a first message) to the second UE, and the second UE may transmit a response message (e.g., a second message) to the first UE accepting the request. The unicast connection over the sidelink may then be established between the first UE and the second UE, and user data may then be transmitted over the sidelink on the established unicast connection. Additionally, the first UE may transmit a connection complete message (e.g., a third message) to the second UE indicating that the unicast connection has been established. The request message, the response message, and the connection complete message may be radio resource control (RRC) messages.
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公开(公告)号:US20210105655A1
公开(公告)日:2021-04-08
申请号:US16948840
申请日:2020-10-01
Applicant: QUALCOMM INCORPORATED
Inventor: Hong Cheng , Sudhir Kumar Baghel , Dan Vassilovski , Kapil Gulati
Abstract: Wireless communication systems and methods related to quality of service mapping, are provided. A first user equipment determines a sidelink radio bearer identifier (SLRB ID) for a quality of service (QoS) flow from a plurality of rules. The rules identify different characteristics of the QoS flow. The SLRB ID is inserted into a header of a packet in the QoS flow. The QoS flow is mapped to a radio bearer that is mapped to an L2 link with other radio bearers that are mapped to other QoS flows. The L2 link transmits the radio bearers to a second UE as part of a broadcast, groupcast or unicast sidelink communication. Based on the SLRB ID, the second UE identifies requirements of the QoS flow.
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公开(公告)号:US20210105618A1
公开(公告)日:2021-04-08
申请号:US17124948
申请日:2020-12-17
Applicant: QUALCOMM Incorporated
Inventor: Michaela Vanderveen , Hong Cheng , Junyi Li , Shailesh Patil
Abstract: Methods, systems, and devices for wireless communications are described that improve privacy in wireless communications, such as communications by a user equipment (UE), which may in some cases be a vehicle UE. For example, various vehicle-to-everything (V2X) transmissions may be unencrypted, and a vehicle may be expected to periodically change one or more identifiers it uses for various communication services. Privacy may be enhanced, for example, via encryption key roll-over, as well as roll-over of one or more other identifiers associated with a UE that may potentially be used by an observer to track the UE. The UE may transmit a message that includes an updated lower layer identifier (e.g., a layer-2 (L2) identifier) to another UE in a V2X unicast communications link, which may trigger a change in identifiers of a set of identifiers and an updated security context. All or a portion of the message may be encrypted.
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公开(公告)号:US10945226B2
公开(公告)日:2021-03-09
申请号:US16154585
申请日:2018-10-08
Applicant: QUALCOMM Incorporated
Inventor: Navid Abedini , Junyi Li , Karl Georg Hampel , Hong Cheng , Jianghong Luo , Juergen Cezanne , Muhammad Nazmul Islam , Sundar Subramanian
Abstract: Wireless communications systems and methods related to communicating in an integrated access backhaul (IAB) network are provided. A first wireless communication device of a multi-hop wireless network receives a first transmission timing adjustment command. The first wireless communication device communicates, with a second wireless communication device of the multi-hop wireless network based on at least the first transmission timing adjustment command, a first communication signal including backhaul data. The first wireless communication device communicates, with a third wireless communication device of the multi-hop wireless network based on the at least the first transmission timing adjustment command, a second communication signal.
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公开(公告)号:US20210059005A1
公开(公告)日:2021-02-25
申请号:US16996868
申请日:2020-08-18
Applicant: QUALCOMM Incorporated
Inventor: Seyedkianoush Hosseini , Peter Pui Lok Ang , Gabi Sarkis , Gokul Sridharan , Tingfang Ji , Wooseok Nam , Hong Cheng , Junyi Li , Zhibin Wu
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine one or more sidelink discontinuous reception (DRX) parameters for a configured sidelink DRX cycle. The sidelink DRX parameters may be selected by the UE or may be indicated by a base station. In some cases, the UE may transmit an indication of the sidelink DRX parameters to another UE (e.g., via a sidelink communication link). A UE may discontinuously monitor for transmissions over the sidelink communication link in accordance with the sidelink DRX parameters.
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公开(公告)号:US20210058882A1
公开(公告)日:2021-02-25
申请号:US16949614
申请日:2020-11-06
Applicant: QUALCOMM Incorporated
Inventor: Navid Abedini , Junyi Li , Karl Georg Hampel , Hong Cheng , Jianghong Luo , Juergen Cezanne , Muhammad Nazmul Islam , Sundar Subramanian
Abstract: Wireless communications systems and methods related to communicating in an integrated access backhaul (IAB) network are provided. A first wireless communication device receives synchronization information associated with one or more wireless communication of a multi-hop wireless network. The first wireless communication device determines a transmission timing adjustment for a second wireless communication device of the one or more wireless communication devices based on at least some of the synchronization information. The first wireless communication device transmits a message instructing the second wireless communication device to communicate with a third wireless communication device of the one or more wireless communication devices based on the transmission timing adjustment.
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公开(公告)号:US10892883B2
公开(公告)日:2021-01-12
申请号:US16268791
申请日:2019-02-06
Applicant: QUALCOMM Incorporated
Inventor: Jianghong Luo , Navid Abedini , Bilal Sadiq , Muhammad Nazmul Islam , Junyi Li , Karl Georg Hampel , Hong Cheng
Abstract: Methods, systems, and devices for wireless communications are described that provide for resource allocation in an integrated access and backhaul (IAB) network. A relay node in an IAB network may be assigned a first resource partition that is different from a second resource partition for the child and parent nodes. Based on a resource configuration (e.g., for a slot) of the second resource partition, the relay node may opportunistically utilize the second resource partition for communications. For instance, the relay node may determine a direction table based on the resource configurations of the child and parent nodes, which may be used to perform uplink or downlink communications in one or more symbols of the second resource partition. The relay node may also identify flexible symbols as free or non-free when determining the direction table.
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公开(公告)号:US10674425B2
公开(公告)日:2020-06-02
申请号:US15080462
申请日:2016-03-24
Applicant: QUALCOMM Incorporated
Inventor: Kapil Gulati , Saurabha Rangrao Tavildar , Sudhir Kumar Baghel , Shailesh Patil , Michaela Vanderveen , Bilal Sadiq , Hong Cheng , Haris Zisimopoulos
Abstract: A UE may move out of range of a network. Accordingly, the UE may use a relay node to communicate. To manage the relay node, a wireless device such as the UE may receive a relay search message from a second UE requesting a relay UE to establish a connection to the network through the relay UE. The UE may transmit a message to a base station informing the base station of the relay search message from the second UE. The UE may receive an initiate relay association procedure message from the base station, the initiate relay association procedure message informing the first UE that the first UE has been selected by the base station to initiate a relay association procedure with the second UE. The UE may transmit a relay association message to the second UE including a request to be the relay UE for the second UE.
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公开(公告)号:US20190306912A1
公开(公告)日:2019-10-03
申请号:US16370400
申请日:2019-03-29
Applicant: QUALCOMM Incorporated
Inventor: Hong Cheng , Junyi Li , Michaela Vanderveen , Zhibin Wu , Sudhir Kumar Baghel , Shailesh Patil , Kapil Gulati
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, base stations and user equipments may use a hybrid operation mode to allocate resources in a cellular vehicle-to-everything communication system. For example, a user equipment (e.g., a vehicle) in the system may receive, from a base station, an indication that the user equipment belongs to at least one group of user equipments for group-level resource allocation, receive, from the base station, an allocation of resources including a pool of resources assigned to the at least one group of user equipments, and reserve a subset of resources of the pool of resources for communication to at least one other user equipment. This communication may be an example of a vehicle-to-everything communication over a sidelink communication channel.
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公开(公告)号:US20190305923A1
公开(公告)日:2019-10-03
申请号:US16268791
申请日:2019-02-06
Applicant: QUALCOMM Incorporated
Inventor: Jianghong Luo , Navid Abedini , Bilal Sadiq , Muhammad Nazmul Islam , Junyi Li , Karl Georg Hampel , Hong Cheng
Abstract: Methods, systems, and devices for wireless communications are described that provide for resource allocation in an integrated access and backhaul (IAB) network. A relay node in an IAB network may be assigned a first resource partition that is different from a second resource partition for the child and parent nodes. Based on a resource configuration (e.g., for a slot) of the second resource partition, the relay node may opportunistically utilize the second resource partition for communications. For instance, the relay node may determine a direction table based on the resource configurations of the child and parent nodes, which may be used to perform uplink or downlink communications in one or more symbols of the second resource partition. The relay node may also identify flexible symbols as free or non-free when determining the direction table.
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