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公开(公告)号：US11456793B2
公开(公告)日：2022-09-27
申请号：US16860043
申请日：2020-04-27
发明人： Yan Zhou , Tao Luo , Sony Akkarakaran , Xiaoxia Zhang
IPC分类号： H04B7/06 , H04B7/08 , H04W76/27 , H04W72/04 , H04W24/08 , H04W76/19 , H04W16/28 , H04L1/08 , H04B7/022
摘要： Methods, systems, and devices for wireless communications are described. A wireless device may identify a resource for wireless communication, the resource being in a first state where the resource is active for wireless communication and is inactive for a communication failure recovery procedure. The wireless device may determine that a communication failure has occurred during a first communication period. In some cases, one or more techniques for confirming the communication failure may be used to verify the failure. The wireless device may transition during a second communication period and based at least in part on the communication failure, the resource to a second state where the resource is inactive for wireless communication and is active for the communication failure recovery procedure. The wireless device may perform the communication failure recovery procedure using the resource transitioned to the second state.
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公开(公告)号：US11438808B2
公开(公告)日：2022-09-06
申请号：US16806809
申请日：2020-03-02
发明人： Junyi Li , Juergen Cezanne , Vasanthan Raghavan
摘要： Methods, systems, and devices for wireless communications are described. The described techniques may enable a first wireless device (e.g., a parent node) to transmit a control message to a second wireless device (e.g., a child node). The control message may include a resource reservation for communication with the second wireless device. The second wireless device may receive the control message and may transmit an acknowledgment message acknowledging successful reception of the resource reservation. The first wireless device may monitor for the acknowledgment message and may communicate with the second wireless device based on whether the acknowledgment message is received. For example, if the first wireless device receives feedback acknowledging successful reception of the resource reservation at the second wireless device, the devices may communicate data in the reserved resources. Otherwise, the first wireless device may retransmit a control message if the first control message was not successfully received.
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公开(公告)号：US11272504B2
公开(公告)日：2022-03-08
申请号：US16654968
申请日：2019-10-16
发明人： Navid Abedini , Wanshi Chen , Muhammad Nazmul Islam , Jianghong Luo , Luca Blessent , Tao Luo , Junyi Li
摘要： Methods, systems, and devices for wireless communications are described that provide for timing adjustments that may be used in communications between wireless devices in a wireless communications system and signaling of such timing adjustments using physical layer signaling (e.g., layer 1 (L1) signaling). A first timing adjustment may be provided by a parent node to one or more associated child nodes that corresponds to a propagation delay between the parent node and its control node or a relay node through which the parent node communicates with a core network. In some cases, the physical layer signaling used to transmit the first timing adjustment may be a reference signal transmission, a downlink control information transmission, or any combination thereof.
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公开(公告)号：US11070279B2
公开(公告)日：2021-07-20
申请号：US16683105
申请日：2019-11-13
发明人： Vasanthan Raghavan , Junyi Li
摘要： Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may include multiple antenna arrays used to support wireless communications. The antenna arrays may be located at different parts of the UE and may allow the UE to flexibly perform beamforming communications. The antenna arrays maybe configured as antenna sets, and the size of each antenna set may vary based on the configuration of the UE. For example, a UE may include a foldable display having multiple foldable display units, and the communication parameters used for transmission and reception of signals via the antenna arrays may depend on the configuration of the foldable display units. In some aspects, a state of the foldable display units or the arrangement of the antenna arrays relative to one another may be used to configure and perform beamforming communications between the UE and a base station.
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公开(公告)号：US10972217B2
公开(公告)日：2021-04-06
申请号：US16366997
申请日：2019-03-27
摘要： Methods, systems, and devices for wireless communications are described. Efficient low-density parity-check (LDPC) scheduling of layered decoding may include receiving a message encoded as an LDPC code that includes a number of check nodes and a number of bit nodes, applying a first number of decoding iterations to decoding the message, applying a second number of decoding iterations to decoding the message after the first number of decoding iterations are applied, and decoding the message through completion of both the first number of decoding iterations and the second number of decoding iterations. In some cases, only a portion of the number of check nodes is decoded during each of the first number of decoding iterations and all of the number of check nodes are decoded during each of the second number of decoding iterations.
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公开(公告)号：US10778309B2
公开(公告)日：2020-09-15
申请号：US16784091
申请日：2020-02-06
发明人： Vasanthan Raghavan , Junyi Li
IPC分类号： H04B7/06 , H04B7/08 , H04B17/382 , H04B17/327 , H04B17/336
摘要： Techniques are described herein for a beam refinement procedure between a first communications device (e.g., base station) and a second communications device (e.g., user equipment (UE)) that uses long-term feedback information from the second communications device to maintain a beam pair link established for a downlink connection. The second communications device may transmit long-term feedback information to the first communications device in response to a request or a trigger event occurring. The long-term feedback information may be sensor information measured by the second communications device or uplink training symbols. The first communications device may localize a beam search of the beam refinement procedure using the long-term feedback information. The localized beam search may be an example of a device-specific search. The first communications device may also generate a long-term map of channel conditions based on the long-term feedback data. The long-term map may also be used to localize the search.
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公开(公告)号：US10652822B2
公开(公告)日：2020-05-12
申请号：US15927000
申请日：2018-03-20
摘要： Methods, systems, and devices for wireless communication are described. A wireless device may receive a downlink (DL) reception indication during an active duration of a discontinuous reception (DRX) configuration. The DL reception indication may indicate the presence of a reception opportunity following an inactivity interval, as well as the length of the inactivity interval. The wireless device may refrain from DL monitoring during the inactivity interval. In some cases, the wireless device may enter a sleep mode during the inactivity interval and wake up to receive a subsequent transmission during the reception opportunity. In some examples, the wireless device may use the inactivity interval to communicate using a different radio access technology (RAT).
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公开(公告)号：US12096499B2
公开(公告)日：2024-09-17
申请号：US17284046
申请日：2019-11-08
发明人： Huichun Liu , Gavin Bernard Horn , Ozcan Ozturk , Miguel Griot , Peng Cheng
CPC分类号： H04W76/15 , H04W24/10 , H04W68/005 , H04W76/19 , H04W76/20
摘要： Methods, systems, and devices for wireless communications are described. A first base station may identify that the first base station is a secondary node for a user equipment (UE) operating in a dual connectivity deployment, where the UE is in a radio resource control (RRC) inactive state. The first base station may receive, from the UE, a request to resume communications with the first base station and a second base station that is a master node in the dual connectivity deployment. The first base station may verify the UE using an access stratum context associated with the UE, and resume communications with the UE based at least in part on the request and the access stratum context. The first base station may resume communications as a secondary node or as a master node. In some cases, the UE may resume communications without entering an RRC idle state.
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公开(公告)号：US12089274B2
公开(公告)日：2024-09-10
申请号：US17641778
申请日：2020-09-11
发明人： Peng Cheng
IPC分类号： H04B17/20 , H04W24/08 , H04W24/10 , H04W36/00 , H04W60/00 , H04W60/04 , H04W76/15 , H04W76/27 , H04W84/02 , H04W88/02 , H04W88/08 , H04W92/02 , H04W92/10
CPC分类号： H04W76/15 , H04B17/252 , H04B17/255 , H04W24/08 , H04W24/10 , H04W36/0064 , H04W36/0069 , H04W60/005 , H04W60/04 , H04W76/27 , H04W84/02 , H04W88/02 , H04W88/08 , H04W92/02 , H04W92/10
摘要： Generally, the described techniques provide for efficiently identifying a lower layer configuration for communicating in a dual connectivity mode after transitioning from an inactive state to a connected state. To efficiently identify the lower layer configuration, a UE operating in a dual connectivity mode may perform measurements on signals received from a master node, a secondary node, and other nearby nodes in an inactive state. Once the UE decides to transition back to a connected state, the UE may report the measurements and restore an original lower layer configuration used to communicate in a dual connectivity mode. The UE may then receive an indication of an updated lower layer configuration as an offset of the original lower layer configuration, where the updated lower layer configuration may be based on the reported measurements.
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公开(公告)号：US12047990B2
公开(公告)日：2024-07-23
申请号：US17435595
申请日：2020-03-19
发明人： Peng Cheng , Prashanth Haridas Hande , Prasad Reddy Kadiri , Arvind Vardarajan Santhanam , Huichun Liu
IPC分类号： H04W72/542 , H04W52/52 , H04W56/00 , H04W72/044 , H04W72/20
CPC分类号： H04W72/542 , H04W52/52 , H04W56/001 , H04W72/044 , H04W72/20
摘要： Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing measurements and other functions in preparation for communicating with a base station on a secondary cell (SCell). In particular, a user equipment (UE) may switch to a certain bandwidth part (BWP) (e.g., a dormant BWP) on an SCell when the SCell is deactivated, and the UE may perform the appropriate measurements and functions on this BWP (e.g., based on reference signals received on this BWP). In some cases, the UE may determine to switch to the BWP for performing the appropriate measurements and functions based on an inactivity timer expiring or based on an indication from a base station (e.g., on a primary cell (PCell)). Accordingly, once the UE activates the SCell for communications with a base station, the latency associated with preparing for communicating on the SCell may be reduced.
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