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公开(公告)号：US10164825B2
公开(公告)日：2018-12-25
申请号：US15153025
申请日：2016-05-12
摘要： Systems and methods relating to 6-port and/or greater than 8-port Channel State Information Reference Signal (CSI-RS) configurations are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises configuring a plurality of CSI-RS ports for a wireless device, where the plurality of CSI-RS ports is six CSI-RS ports, ten CSI-RS ports, twelve CSI-RS ports, fourteen CSI-RS ports, or sixteen CSI-RS ports, depending on the embodiment. The method further comprises transmitting CSI-RS on at least a subset of the plurality of CSI-RS ports configured for the wireless device. In this manner, support for, e.g., an increased number of antenna ports and/or support for two-dimensional (2D) antenna arrays is provided.
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42.发明授权公开(公告)号：US09893858B2
公开(公告)日：2018-02-13
申请号：US15226494
申请日：2016-08-02
发明人： Yufei Blankenship , Shiwei Gao
CPC分类号： H04L5/0051 , H04B1/713 , H04L5/0012 , H04L5/0053 , H04W4/70 , H04W72/0413 , H04W72/0446 , H04W72/048
摘要： According to some embodiments, a method of operating a wireless device in a wireless system comprises allocating a first uplink sub-channel to the wireless device in a first subframe associated with the wireless device. The first uplink sub-channel comprises a portion of an uplink system bandwidth, and portions of the uplink system bandwidth outside of the first uplink sub-channel are not available for transmission in the first subframe by the wireless device. The method further comprises determining a first sounding reference signal (SRS) sub-channel. The first SRS sub-channel comprises a portion of the first uplink sub-channel in frequency domain, and the SRS sub-channel is available for transmitting SRS in the first subframe by the wireless device.
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公开(公告)号：US20240365312A1
公开(公告)日：2024-10-31
申请号：US18682697
申请日：2022-08-22
发明人： Zhipeng Lin , Yufei Blankenship , Siva Muruganathan , Shiwei Gao
IPC分类号： H04W72/1268 , H04L1/00 , H04L5/00 , H04W72/21 , H04W72/231
CPC分类号： H04W72/1268 , H04L1/0003 , H04L5/0051 , H04W72/21 , H04W72/231
摘要： The present disclosure is related to a UE, a network node, and methods for uplink transmission with multiple codewords. The method at a UE for uplink transmission with multiple codewords comprises: performing, with one or more network nodes, an uplink transmission with multiple codewords. The method at a network node for uplink transmission with multiple codewords from a UE comprises: performing, with the UE, an uplink transmission with multiple codewords.
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公开(公告)号：US12095703B2
公开(公告)日：2024-09-17
申请号：US18222865
申请日：2023-07-17
发明人： Mattias Frenne , Shiwei Gao , Siva Muruganathan
CPC分类号： H04L5/0053 , H04B7/08 , H04L5/0023 , H04L5/0048 , H04L5/0094 , H04W72/23
摘要： A method for a UE in a multiple transmission points communication system, mTRP, scheme, is provided. The method includes receiving downlink control information, DCI, indicating at least two transmission points scheme for a scheduled data transmission on physical resource blocks, PRBs. The PRBs includes at least a first subsets of PRBs, associated with a first transmission point, and a second subset of PRBs, associated with a second transmission point. The method further includes determining a first PT-RS frequency density for the first set of PRBs based on the number of PRBs in the first set of PRBs and a second PT-RS frequency density based on the number of PRBs in the second set of PRBs. A UE, methods for a base station and a base station are also provided.
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公开(公告)号：US20240259950A1
公开(公告)日：2024-08-01
申请号：US18019269
申请日：2021-08-05
CPC分类号： H04W52/146 , H04W52/42
摘要： Systems and methods for associating power control states with Transmission Configuration Indicator (TCI) states are provided. In some embodiments, a method performed by a wireless communication device comprises obtains information that indicates associations between two or more power control states and: (a) two or more TCI states, (b) two or more uplink (UL) channels, (c) two or more UL resources, (d) two or more UL resource sets, (e) two or more UL resource groups, or (f) any combination of two or more of (a)-(e). In this way, some embodiments herein enable efficient signaling to associate the TCI states with the power control states.
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公开(公告)号：US12015575B2
公开(公告)日：2024-06-18
申请号：US17940052
申请日：2022-09-08
发明人： Siva Muruganathan , Shiwei Gao , Sebastian Faxér
CPC分类号： H04L5/0048 , H04L5/0078 , H04L27/261
摘要： Systems and methods are disclosed herein for providing aperiodic Sounding Reference Signal (SRS) triggering in a wireless system. Embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method in a wireless device for triggering aperiodic SRS comprises receiving a first SRS configuration for a first type of aperiodic SRS transmission and a second SRS configuration for a second type of aperiodic SRS transmission. The method further comprises receiving downlink control information comprising a parameter for triggering an aperiodic SRS transmission and determining whether to use the first SRS configuration or the second SRS configuration. The method further comprises transmitting an aperiodic SRS transmission in accordance with the determined SRS configuration. Embodiments of a method performed by a base station and corresponding embodiments of a base station are also disclosed.
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公开(公告)号：US20240089061A1
公开(公告)日：2024-03-14
申请号：US18272227
申请日：2022-01-16
发明人： Shiwei Gao , Mattias Frenne , Siva Muruganathan , Jianwei Zhang
CPC分类号： H04L5/0053 , H04L5/001 , H04W72/23
摘要： Systems and methods for linking Physical Downlink Control Channel (PDCCH) candidates are provided herein. In some embodiments, a method includes: receiving a configuration of a first and second Control Resource Set (CORESET) associated with a first and second Search Space (SS) set; determining that the first and second SS set are configured with a common set of parameters; activating the first and second CORESET with a first and second TCI state; linking a first PDCCH candidate in a first PDCCH monitoring occasion to a second PDCCH candidate in a second PDCCH monitoring occasion; receiving a PDCCH in the first PDCCH candidate and the PDCCH in the second PDCCH candidate; and detecting the PDCCH in the first and the second PDCCH candidates. Some embodiments might provide a simple way for linking PDCCH candidates in two SS sets to support both intra-slot and inter-slot PDCCH repetition in either TDM or FDM manner.
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公开(公告)号：US11929957B2
公开(公告)日：2024-03-12
申请号：US16304179
申请日：2017-05-23
CPC分类号： H04L5/0057 , H04B7/0626 , H04L5/001 , H04L5/0048 , H04W24/10
摘要： Embodiments herein show a method performed by a user equipment for handling communication via a set of serving cells comprising a first serving cell and a second serving cell of a communication network. The user equipment receives a grant on a first serving cell, wherein the grant comprises a first identifier identifying Channel State Information Reference Signal (CSI-RS) resources of the first serving cell. Furthermore, the user equipment calculates a first CSI report for the first serving cell using the CSI-RS resources identified by the first identifier; and calculates a second CSI report for a second serving cell, using CSI-RS resources of the second serving cell identified by a second identifier, the second identifier being received previously in a grant on the second serving cell. The user equipment then transmits the first and second CSI reports to a network node serving the first serving cell.
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49.发明公开公开(公告)号：US20240056256A1
公开(公告)日：2024-02-15
申请号：US18257902
申请日：2021-12-15
发明人： Mattias Frenne , George Jöngren , Siva Muruganathan , Shiwei Gao
IPC分类号： H04L5/00 , H04W72/23 , H04W72/1273
CPC分类号： H04L5/0051 , H04W72/23 , H04W72/1273
摘要： Techniques disclosed herein provide for prohibiting use by a User Equipment (UE) (12) of configured Tracking Reference Signals (TRSs) (30). For example, under certain conditions or circumstances, the UE (12) is prohibited from using any configured TRS (30) for time or frequency tracking, for reception by the UE (12) of a physical downlink channel (32). For example, when TRS usage is prohibited for time or frequency tracking for reception of a physical downlink channel (32), the UE (12) uses Demodulation Reference Symbols (DMRS) transmitted for the physical downlink channel (32), for such time or frequency tracking.
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公开(公告)号：US20230396375A1
公开(公告)日：2023-12-07
申请号：US18032435
申请日：2021-10-18
发明人： Siva Muruganathan , Jianwei Zhang , Andreas Nilsson , Shiwei Gao , Helka-Liina Määttänen , Claes Tidestav
CPC分类号： H04L5/0023 , H04L5/0091 , H04B7/0695 , H04L5/0044
摘要： Method and apparatus are disclosed herein for providing Downlink Control Information (DCI)-based Transmission Configuration Indicator (TCI) state update with flexible channel selection. In one embodiment, a method performed by a network node of a cellular communication system comprises transmitting, to a User Equipment (UE), a DCI having a DCI format comprising a TCI state update indication, and a TCI state update application indication indicating one or more channels or signals to which the TCI state update is to be applied by the UE. In another embodiment, a method performed by a UE comprises receiving a DCI having a DCI format comprising a TCI state update indication and a TCI state update application indication indicating one or more channels or signals to which the TCI state update is to be applied by the UE, and applying the TCI state update as indicated by the TCI state update application indication.
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