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公开(公告)号：US20220104278A1
公开(公告)日：2022-03-31
申请号：US17427029
申请日：2020-01-22
摘要： Methods and apparatuses for random access. A method performed by a terminal device comprises determining a random access procedure to be performed, the random access procedure being one of a two-step random access procedure and a four-step random access procedure, and transmitting a request message for random access in the determined random access procedure.
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公开(公告)号：US20190141705A1
公开(公告)日：2019-05-09
申请号：US16074329
申请日：2017-02-06
发明人： Spendim DALIPI , Dominique EVERAERE , Asbjörn GRÖVLEN , Kenneth SANDBERG , Yutao SUI , Yi-Pin Eric WANG
摘要： A wideband carrier (e.g., LTE carrier) is shifted up or down in frequency, within an allocated frequency band, by an integer multiple of the channel raster spacing (e.g., 100 KHz). This reduces the size of the guard band on one side of the carrier, and expands the guard band on the other side. A narrowband carrier (e.g., NB-IoT carrier) is then deployed within the expanded guard band, at or near a frequency such that the transmission is orthogonal to the wideband carrier transmissions, such as by using a shared N frequency grid spacing (e.g. at 100 KHz spacing, and using 15 KHz subcarriers). The narrowband carrier thus maintains orthogonality with the wideband carrier, but has “room” within the expanded guard band to both transmit on a frequency close to the frequency grid spacing, and to boost transmit power (e.g., by 6 dB), while remaining within the spectral mask. The shifted wideband carrier is transparent to wideband UEs, as the frequency shift is an integer multiple of the channel raster spacing.
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公开(公告)号：US20180343679A1
公开(公告)日：2018-11-29
申请号：US15510957
申请日：2017-01-05
摘要： There is provided mechanisms for configuring beamforming mode during a network access procedure of a second radio transceiver device. A method is performed by a first radio transceiver device. The method comprises transmitting a message indicating which beamforming mode from at least two available beamforming modes the second radio transceiver device is to use when transmitting a network access signal.
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4.发明公开公开(公告)号：US20240236882A1
公开(公告)日：2024-07-11
申请号：US18412284
申请日：2024-01-12
IPC分类号： H04W56/00 , H04L27/26 , H04W72/1263
CPC分类号： H04W56/001 , H04L27/26025 , H04W72/1263
摘要： Embodiments of the invention include methods, systems, and computer programs to determine synchronization signal (SS) block mapping pattern in a wireless network. In one embodiment, a method is implemented in a terminal device for synchronization signal block (SSB) search in a wireless network, the method includes receiving, by the terminal device from a network device, a message containing synchronization signal block (SSB) information indicating a synchronization signal (SS) block subcarrier spacing (SCS) option, where the SS block SCS option maps to a plurality of SS block pattern candidates. The method continues with obtaining SSB candidate locations, using a SS block pattern determination from the plurality of SS block pattern candidates for the terminal device determined.
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公开(公告)号：US20230308988A1
公开(公告)日：2023-09-28
申请号：US18322583
申请日：2023-05-23
发明人： Zhipeng LIN , Pål FRENGER , Asbjörn GRÖVLEN
摘要： A method, network device and terminal device for providing remaining minimum system information (RMSI) in a wireless network. A method comprises determining whether a SS/PBCH block in the SS burst set configures the RMSI. In response to that the SS/PBCH block configures the RMSI, transmitting one or more repeated RMSI within a first periodicity.
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公开(公告)号：US20210007085A1
公开(公告)日：2021-01-07
申请号：US16480274
申请日：2019-03-20
发明人： Zhipeng LIN , Jingya LI , Pål FRENGER , Andres REIAL , Asbjörn GRÖVLEN
摘要： The present disclosure introduces a method implemented at a user equipment. The method includes: determining, within a physical downlink control channel, one or more bits of a downlink control information that indicates a corresponding physical downlink shared channel carrying a remaining minimum system information or other system information. A user equipment and a corresponding network node are also introduced.
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公开(公告)号：US20180184434A1
公开(公告)日：2018-06-28
申请号：US15738471
申请日：2016-06-24
CPC分类号： H04W72/082 , H04L1/1812 , H04L1/1845 , H04L1/1858 , H04L1/189 , H04L5/0053 , H04W4/70 , H04W72/042 , H04W72/14
摘要： Systems and methods relating to decoding a downlink channel that utilizes repetitions and, in particular, decoding the downlink channel when the number of repetitions utilized for transmission of the downlink channel is unknown. In some embodiments, a method of operation of a User Equipment device (UE) in a cellular communications network comprises identifying a Signal to Interference plus Noise (SINR) value for a signal received by the UE from a radio access node of the cellular communications network, identifying a number of repetitions estimated to be used for transmission of a downlink channel from the radio access node based on the SINR value, and attempting to decode the downlink channel based on the number of repetitions estimated to be used for transmission of the downlink channel from the radio access node.
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公开(公告)号：US20240334499A1
公开(公告)日：2024-10-03
申请号：US18739270
申请日：2024-06-10
IPC分类号： H04W74/0833 , H04W72/0446 , H04W72/0453 , H04W74/00 , H04W74/08
CPC分类号： H04W74/0841 , H04W72/0446 , H04W72/0453 , H04W74/006 , H04W74/0866
摘要： Methods and apparatuses for random access. A method performed by a terminal device comprises determining a random access procedure to be performed, the random access procedure being one of a two-step random access procedure and a four-step random access procedure, and transmitting a request message for random access in the determined random access procedure.
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公开(公告)号：US20210410117A1
公开(公告)日：2021-12-30
申请号：US16333988
申请日：2019-01-09
发明人： Zhipeng LIN , Asbjörn GRÖVLEN
摘要： A scheme for control resource set (CORESET) control channel element (CCE) to resource element group (REG) mapping. The terminal device determines a set of physical downlink control channel (PDCCH) candidates based on one or more CORESET CCE to REG mapping related parameters. The one or more CORESET CCE to REG mapping related parameters are fixed. In one scheme, the terminal device obtains information by detecting a synchronization signal (SS)/physical broadcast channel (PBCH) block. The terminal device determines one or more CORESET CCE to REG mapping related parameters, based on the information obtained during the detection of the SS/PBCH block. A correspondence between the one or more CORESET CCE to REG mapping related parameters and the obtained information is predefined between the terminal device and a BS. The terminal device determines a set of PDCCH candidates based on the one or more CORESET CCE to REG mapping related parameters.
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公开(公告)号：US20210112602A1
公开(公告)日：2021-04-15
申请号：US16970117
申请日：2018-07-31
发明人： Jingya LI , Johan AXNÄS , Asbjörn GRÖVLEN , Naga Vishnu Kanth IRUKULAPATI , Xingqin LIN , Hongxia ZHAO
摘要： A method may be provided to operate a wireless terminal in communication with a network node. The method may include receiving a Physical Downlink Control Channel, PDCCH, order from the network node. The PDCCH order may include an identification for a Random Access CHannel RACH occasion to be used for a RACH message 1 preamble transmission. Moreover, the identification may include a first index that indicates a set of RACH occasions and a second index that indicates the RACH occasion associated with the set. The method may also include transmitting a Message 1 preamble to the network node using the RACH occasion responsive to the PDCCH order.
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