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公开(公告)号：US11770856B2
公开(公告)日：2023-09-26
申请号：US16638096
申请日：2018-07-25
Inventor： Li Chen
IPC: H04W74/08 , H04L69/166 , H04L69/22 , H04L69/322 , H04W28/06 , H04W74/00
CPC classification number: H04W74/0833 , H04L69/166 , H04L69/22 , H04L69/322 , H04W28/065
Abstract: A random access response method, a random access response device, a base station and UE are provided. The method includes: transmitting a random access response message to UE, where a medium access control protocol data unit (MAC PDU) of the random access response message includes at least one medium access control sub-protocol data unit (MAC subPDU), each MAC subPDU includes an MAC subheader and possibly a medium access control random access response (MAC RAR) corresponding to the MAC subheader; in case that there are at least two MAC subPDUs, the at least two MAC subPDUs are sequentially arranged in the MAC PDU.
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公开(公告)号：US11470647B2
公开(公告)日：2022-10-11
申请号：US16475948
申请日：2018-02-12
Abstract: A method and a device for two-step contention based random access are provided. The method includes: sending, by a user equipment (UE), an Msg1 message; and determining that two-step random access of the user equipment is successful, in a case that a UE identifier carried in the Msg1 message is a cell radio network temporary identifier (C-RNTI) and physical layer scheduling signaling addressed based on the C-RNTI is received by the user equipment. For two-step contention based random access, if the UE identifier carried in the Msg1 message is a C-RNTI, the user equipment determines that the two-step random access is successful in a case that the physical layer scheduling signaling addressed based on the C-RNTI is received by the user equipment. In this way, the two-step contention based random access can be achieved.
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公开(公告)号：US11363636B2
公开(公告)日：2022-06-14
申请号：US16475370
申请日：2018-02-07
Abstract: A method and a device for contention-based random access are provided. The method includes: sending, by a terminal side device, an Msg1 corresponding to a two-step contention-based random access to a network side device; receiving, by the terminal side device, an Msg2 returned by the network side device, wherein if the terminal side device determines a failure of the two-step contention-based random access occurs according to a receiving condition of the Msg2 message, the terminal side device performs a handling procedure for the failure of the two-step contention-based random access. The Msg2 message is determined by the network side device according to a receiving condition that the network side device receives the Msg1 message.
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公开(公告)号：US10993273B2
公开(公告)日：2021-04-27
申请号：US16301433
申请日：2017-04-17
Inventor： Li Chen , Haiyang Quan
Abstract: A method and a device for downlink data transmission are provided. The method includes: in the case that a network side has downlink data needing to be sent to a terminal in an inactive connection state, sending, to the terminal, by one or more access devices, an indication message carrying an inactive connection state terminal identification of the terminal; and receiving, by the one or more access devices, an uplink feedback initiated by the terminal based on the indication message. The terminal in the Inactive state may perform a fast downlink data transmission.
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公开(公告)号：US09503972B2
公开(公告)日：2016-11-22
申请号：US13973702
申请日：2013-08-22
Inventor： Dajun Zhang , Li Chen
CPC classification number: H04W52/0206 , H04W24/02 , H04W28/06 , H04W52/0219 , H04W52/0258 , H04W52/367 , H04W72/0406 , H04W88/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1262
Abstract: The present invention relates to the technical field of wireless communications, is used for optimizing an energy saving mechanism, and provides a method for energy saving compensation, which method comprises: expanding, by a base station, a signal coverage area to form a new cell, when the energy saving activation requirements are met, so as to allow an energy-saving cell managed by the base station to switch users to the new cell and to activate the energy saving state; and when energy saving deactivation requirements are met, and if the energy-saving cell managed by the base station deactivates the energy saving state, then switching, by the base station, the users to the energy-saving cell and reducing the signal coverage area. The present invention optimizes currently available energy saving mechanisms and provides a solution capable of compensating the service loss of energy-saving cells.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11539474B2
公开(公告)日：2022-12-27
申请号：US16622834
申请日：2018-03-29
Inventor： Li Chen
Abstract: Disclosed by the present application are a configuration for duplication transmission and a duplication transmission method and device, comprising: determining each radio bearer of a terminal; and carrying out duplication transmission configuration for each radio bearer. The terminal receives the configuration for duplication transmission carried out at a network side and carries out duplication transmission according to the configuration. By employing the present application, duplication transmission may be applied flexibly for different bearer characteristics, high reliability provided by duplication transmission may be obtained, the utilization efficiency of radio resources may be increased, and resource waste is avoided. Meanwhile, air interface control signaling overhead is reduced.
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公开(公告)号：US11503643B2
公开(公告)日：2022-11-15
申请号：US16323257
申请日：2017-05-17
Inventor： Li Chen
Abstract: Disclosed are a random access method and device for solving the problem in which random access procedures of traditional LTE systems cannot be performed properly in 5G systems. The method comprises: a terminal determining a transmission parameter to be used by said terminal for data transmission, the transmission parameter comprising an operation bandwidth and/or a baseband parameter; the terminal sending, according to the transmission parameter, a random access request; and the terminal using the transmission parameter to receive a random access response corresponding to the random access request. The invention realizes random access in a 5G system, thereby increasing the access success rate.
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公开(公告)号：US11291037B2
公开(公告)日：2022-03-29
申请号：US16475674
申请日：2018-02-14
Abstract: An SR/BSR triggering method and device are provided by the present disclosure. The method includes triggering an SR (Scheduling Request) and/or BSR (Buffer Status Report) process, if there is uplink data transmission requirement in a bearer channel and/or logical channel of a terminal, and there is no uplink resource available to the terminal on physical resources corresponding to numerologies and/or TTI lengths available to the bearer channel and/or the logical channel.
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公开(公告)号：US11218913B2
公开(公告)日：2022-01-04
申请号：US15555962
申请日：2016-02-03
Abstract: The present disclosure provides an air-interface protocol stack configuration method, a data transmission method, an air-interface protocol stack configuration device and a data transmission device. The air-interface protocol stack configuration method includes steps of: configuring an air-interface protocol stack to be used for data transmission in accordance with data transmission characteristics of communication ends for the data transmission; and transmitting configuration information or identification information about the air-interface protocol stack to at least one of the communication ends for the data transmission.
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公开(公告)号：US11160092B2
公开(公告)日：2021-10-26
申请号：US16090579
申请日：2017-05-04
Inventor： Li Chen , Wei Bao , Fangli Xu , Xueming Pan
Abstract: A service data transmission method, a UE and a network side device are provided. The service data transmission method includes: upon receipt of a scheduling command for an uplink resource from a network side device, acquiring attribute information of to-be-transmitted service data packets, the attribute information of the to-be-transmitted service data packets including a time delay; and mapping the to-be-transmitted service data packets to the uplink resource in accordance with a time delay requirement on the to-be-transmitted service data packets, and transmitting the to-be-transmitted service data packets on the uplink resource.
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