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公开(公告)号：US20220116924A1
公开(公告)日：2022-04-14
申请号：US17449654
申请日：2021-09-30
发明人： Kazuki Takeda , Changhwan Park , Heechoon Lee , Alberto Rico Alvarino , Peter Gaal , Juan Montojo , Wanshi Chen , Tao Luo , Olufunmilola Omolade Awoniyi-Oteri
摘要： Systems, methods, and devices for secondary cell activation using temporary reference signals and beam selection are provided. In one aspect, a method of wireless communication is performed by a UE and includes receiving, from a base station (BS) via a first cell, an activation command to activate a second cell different from the first cell. The method further includes receiving, from the BS via the second cell during a cell activation period, a first reference signal different from a synchronization signal block (SSB) based on beam information. The method further includes performing a first measurement of the first reference signal, and operating in the second cell based on the first measurement.
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公开(公告)号：US20220085930A1
公开(公告)日：2022-03-17
申请号：US17469347
申请日：2021-09-08
发明人： Kazuki Takeda , Changhwan Park
IPC分类号： H04L5/00
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, while the UE is in wireless communications with a first serving cell supported by a base station, an indication to activate or deactivate a second serving cell supported by the base station. The UE may receive a reference signal from the base station via the first serving cell, the reference signal received a duration of time after receipt of the indication, where the duration of time is an interruption period for the wireless communications with the first serving cell. The UE may then resume the wireless communications with the first serving cell based on the interruption period ending at receipt of the reference signal.
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公开(公告)号：US12058683B2
公开(公告)日：2024-08-06
申请号：US17480521
申请日：2021-09-21
发明人： Iyab Issam Sakhnini , Peter Gaal , Tao Luo , Prashant Sharma , Changhwan Park
IPC分类号： H04W72/21 , H04L5/00 , H04W72/044 , H04W72/51
CPC分类号： H04W72/21 , H04L5/0012 , H04W72/044 , H04W72/51
摘要： Certain aspects of the present disclosure provide techniques for providing direct current locations of bandwidth parts (BWPs) in a BWP hopping pattern. Certain aspects relate to a method for wireless communication by a user equipment (UE). In some examples, the UE may receive, from a base station (BS), a request for uplink direct current location information of the UE, wherein the UE is configured to transmit to the BS on an uplink according to a frequency hopping pattern for hopping between a plurality of uplink bandwidth parts corresponding to different frequency bandwidths. In some examples, the UE may transmit, to the BS, at least one uplink direct current location applicable to the plurality of uplink bandwidth parts. In some examples, the UE may transmit, to the BS, on the uplink according to the frequency hopping pattern.
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14.发明公开公开(公告)号：US20240089967A1
公开(公告)日：2024-03-14
申请号：US17940613
申请日：2022-09-08
IPC分类号： H04W72/12
CPC分类号： H04W72/1278
摘要： Methods, systems, and devices for wireless communications are described. In some aspects, a user equipment (UE) may receive an indication of a set of channel measurement resources (CMRs) that are configured for a group-based reference signal measurement for multiple transmission and reception points (TRPs). The UE may identify or determine whether a set of one or more directional beams used by the UE to measure reference signal transmissions from each of the multiple TRPs satisfy a threshold directivity gain. The UE may transmit a request to enable a scheduling restriction at the UE for a time period associated with the group-based reference signal measurement if the set of directional beams fail to satisfy the threshold directivity gain and may transmit a request to disable the scheduling restriction if the set of directional beams satisfy the threshold directivity gain.
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15.发明公开公开(公告)号：US20230345281A1
公开(公告)日：2023-10-26
申请号：US18042538
申请日：2020-09-07
发明人： Huilin Xu , Peng Cheng , Yu Zhang , Changhwan Park , Chenxi Hao
CPC分类号： H04W24/10 , H04L5/0048 , H04W36/0088 , H04B7/0626
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a cell measurement supported by the UE, the cell measurement associated with the UE supporting channel state information measurements of a dormant secondary cell in a cell group. The UE may receive a downlink control information triggering channel state information reference signal measurements for a set of cells in the cell group, the set of cells comprising the dormant secondary cell. The UE may perform, based at least in part on the downlink control information, the channel state information reference signal measurements on one or more cells in the set of cells according to the cell measurement supported by the UE to identify channel state information for each of the one or more cells.
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公开(公告)号：US11778574B2
公开(公告)日：2023-10-03
申请号：US17491400
申请日：2021-09-30
发明人： Kazuki Takeda , Changhwan Park , Heechoon Lee , Alberto Rico Alvarino , Peter Gaal , Juan Montojo , Wanshi Chen , Tao Luo , Olufunmilola Omolade Awoniyi-Oteri
CPC分类号： H04W56/001 , H04L5/0051 , H04W72/23
摘要： Systems, methods, and devices for secondary cell activation using temporary reference signals are provided. In one aspect, a method of wireless communication performed by a user equipment (UE), includes receiving, from a base station (BS) via a first cell, an activation command to activate a second cell different from the first cell, and receiving, from the BS via the second cell during an activation period, a first reference signal different from a synchronization signal block (SSB). The method further includes performing a measurement of the first reference signal, and operating in the second cell based on the measurement. In some aspects, using reference signals different from SSBs may reduce the delay associated with activating the secondary cell.
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公开(公告)号：US11696231B2
公开(公告)日：2023-07-04
申请号：US17400547
申请日：2021-08-12
发明人： Huilin Xu , Peter Gaal , Peter Pui Lok Ang , Alexei Yurievitch Gorokhov , Le Liu , Wooseok Nam , Heechoon Lee , Hari Sankar , Changhwan Park , Yuchul Kim
CPC分类号： H04W52/0229 , H04L5/0051 , H04W52/0212 , H04W68/005 , H04W72/23
摘要： Aspects of the present disclosure relate to wireless communications, and more particularly, to reference signal (RS) designs that allow for tracking loop updates and paging of UEs using various RSs. One example method includes identifying reference signal (RS) monitoring occasions for a user equipment (UE) in an idle or inactive mode; and transmitting, to the UE, reference signals in the identified RS monitoring occasions, the RS monitoring occasions being associated with RS for tracking purposes and RS for an indication the UE is to wake up to process additional signaling.
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18.发明公开公开(公告)号：US20230147301A1
公开(公告)日：2023-05-11
申请号：US17454519
申请日：2021-11-11
发明人： Prashant Sharma , Changhwan Park , Iyab Issam Sakhnini , Tao Luo
CPC分类号： H04W72/085 , H04W72/044 , H04L5/0012 , H04W72/0406
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may indicate measurement gap information to a base station. For example, a UE may receive signaling configuring hopping patterns for multiple bandwidth parts (BWPs). Each BWP may include resource blocks having a bandwidth that is less than a threshold bandwidth support by the UE. The UE may transmit control signaling indicating measurement gap information for frequency spectrum bands, and the control signaling may indicate whether a measurement gap is applicable for measurements. The indication may be based on hopping patterns and a frequency-domain location of signals to be measured. The UE may determine a measurement gap pattern for an active BWP based on an association between the measurement gap pattern and the active BWP, or between the measurement gap pattern and a hopping pattern. The UE may perform measurements on signals based on the measurement gap pattern.
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公开(公告)号：US20230125530A1
公开(公告)日：2023-04-27
申请号：US17507132
申请日：2021-10-21
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication that the UE is to perform radio resource management (RRM) measurements at a first periodicity. The UE may identify an RRM measurement relaxation grouping to which the UE belongs based on at least one of a mobility of the UE or a location of the UE within a cell, such as whether the UE is near a cell-edge, or whether the UE is stationary or moving in accordance with low-mobility, or a combination thereof. The UE may determine a first relaxation parameter from a plurality of relaxation parameters based on measurement relaxation criterion associated with the cell, where the plurality of relaxation parameters may be associated with the RRM measurement relaxation grouping. The UE may perform the RRM measurements at a second periodicity that is based on the first relaxation parameter.
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公开(公告)号：US20230042828A1
公开(公告)日：2023-02-09
申请号：US17393778
申请日：2021-08-04
发明人： Toru Uchino , Kazuki Takeda , Changhwan Park
摘要： This disclosure provides systems, methods and apparatus for a signaling mechanism associated with activating a secondary cell (SCell) for uplink control information (UCI), including under circumstances in which the SCell is deactivated and belongs to a timing advance group (TAG) lacking a valid timing advance (TA) value. In one aspect, a user equipment (UE) and one or more components of a network entity may employ a signaling mechanism for establishing an SCell as a PUCCH-SCell in scenarios in which the PUCCH-SCell belongs to a secondary TAG (sTAG) lacking a valid TA value. The signaling mechanism may include signaling to directly provide the network entity with beam measurement information associated with one or more SCells of the sTAG or may include singling that the network entity may use to derive the beam measurement information associated with the one or more SCells of the sTAG.
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