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公开(公告)号：US20180367358A1
公开(公告)日：2018-12-20
申请号：US15802326
申请日：2017-11-02
摘要： Systems and methods for reference signal transmission, such as demodulation reference symbol and CSI-RS. The network transmits a reference signal scrambling ID to the UE, and both the network and the UE use this to calculate an initialization sequence for the reference signal. The, one or the other of the network and the UE transmit the reference signal. Optionally, the reference signal is based on a UE-related ID, or a combination of the UE-related ID and one or more other fields.
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公开(公告)号：US20200304344A1
公开(公告)日：2020-09-24
申请号：US16893905
申请日：2020-06-05
摘要： Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.
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公开(公告)号：US20170331645A1
公开(公告)日：2017-11-16
申请号：US15588499
申请日：2017-05-05
摘要： Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.
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公开(公告)号：US20180124830A1
公开(公告)日：2018-05-03
申请号：US15794540
申请日：2017-10-26
申请人： YICHENG LIN , MOHAMMADHADI BALIGH , USA VILAIPORNSAWAI , KELVIN KAR KIN AU , HAMIDREZA FARMANBAR
发明人： YICHENG LIN , MOHAMMADHADI BALIGH , USA VILAIPORNSAWAI , KELVIN KAR KIN AU , HAMIDREZA FARMANBAR
CPC分类号： H04W74/085 , H04W8/005 , H04W8/186 , H04W74/0833 , H04W76/27
摘要： In response to receiving a random access channel message from a User Equipment (UE), a network element in a communication network may initiate a random access procedure, for example. The random access channel message includes multiple sequences, such as a first sequence associated with a group of UEs that includes the UE and a second sequence associated with the UE, and may be in any one of multiple different message formats. The random access procedure could include respective search stages for each of the multiple sequences. Power control for random access message transmission is also implemented by the UE in some embodiments.
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公开(公告)号：US20180278450A1
公开(公告)日：2018-09-27
申请号：US15927353
申请日：2018-03-21
申请人： KEYVAN ZARIFI , MOHAMMADHADI BALIGH , YICHENG LIN
发明人： KEYVAN ZARIFI , MOHAMMADHADI BALIGH , YICHENG LIN
摘要： Methods and devices for assigning sounding reference signals (SRS) resources to UEs in a wireless communication network are provided. Configuration information is sent to a UE, the configuration information pertaining to a first sequence identifier (ID) to be used by the UE to generate a plurality of SRS sequences to be sent by the UE as at least part of a first SRS. Each SRS sequence of the plurality of SRS sequences is a function of a respective SRS sequence root that is a function of the first sequence ID. The first sequence ID may be a UE-specific sequence ID that is a function of a UE-specific ID associated with the UE, such as a Cell-Radio Network Temporary Identifier (C-RNTI).
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公开(公告)号：US20180124733A1
公开(公告)日：2018-05-03
申请号：US15789650
申请日：2017-10-20
CPC分类号： H04W64/00 , H04W52/0216 , H04W52/0229 , H04W76/27 , Y02D70/00 , Y02D70/1262 , Y02D70/23 , Y02D70/24
摘要： Methods and devices for uplink-based User Equipment (UE) tracking for UEs operating in a connected inactive operating state are provided. A transmit-receive point (TRP) transmits parameters to a UE that allow the UE to uniquely determine a UE-specific tracking sequence and assigned time-frequency (TF) resource that are independent of a TRP identifier associated with the TRP. The UE determines the UE-specific tracking sequence and assigned TF resource based at least in part on the parameters received from the TRP. While in the connected inactive operating state, the UE transmits a tracking signal that includes the UE-specific tracking sequence in accordance with the assigned TF resource. The TRP receives the tracking signal from the UE, detects the UE in accordance with the UE-specific tracking sequence to produce a UE detection status, and transmits a tracking response to the UE in accordance with the UE detection status.
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公开(公告)号：US20170181041A1
公开(公告)日：2017-06-22
申请号：US15073788
申请日：2016-03-18
申请人： MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
发明人： MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
IPC分类号： H04W36/00
CPC分类号： H04W36/0011 , H04L5/0091 , H04W36/0072
摘要： User Equipment (UE) mobility in Ultra Dense Networks (UDNs) is based on communication signal layers, which could include respective data streams in an Orthogonal Frequency Division Multiplexing (OFDM) domain, a code domain using respective codebooks, and/or a spatial domain, for example. A UE uses candidate layer decoding parameters in applying layer-based decoding to communication signals that it received from network nodes. Layers could be allocated to UEs and transition between network nodes as UEs move between different network service areas. Layers could instead be allocated to network nodes. Layer-based decoding provides for UE mobility without requiring explicit handover processing every time a UE moves between different service areas.
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公开(公告)号：US20200059830A1
公开(公告)日：2020-02-20
申请号：US16557089
申请日：2019-08-30
申请人： MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
发明人： MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
IPC分类号： H04W36/00
摘要： User Equipment (UE) mobility in Ultra Dense Networks (UDNs) is based on communication signal layers, which could include respective data streams in an Orthogonal Frequency Division Multiplexing (OFDM) domain, a code domain using respective codebooks, and/or a spatial domain, for example. A UE uses candidate layer decoding parameters in applying layer-based decoding to communication signals that it received from network nodes. Layers could be allocated to UEs and transition between network nodes as UEs move between different network service areas. Layers could instead be allocated to network nodes. Layer-based decoding provides for UE mobility without requiring explicit handover processing every time a UE moves between different service areas.
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公开(公告)号：US20190053287A1
公开(公告)日：2019-02-14
申请号：US16100125
申请日：2018-08-09
申请人： YICHENG LIN , KEYVAN ZARIFI , MOHAMMADHADI BALIGH
发明人： YICHENG LIN , KEYVAN ZARIFI , MOHAMMADHADI BALIGH
摘要： Systems and methods are provided for transmit signalling to configure a UE with a UE specific root to use in generating a Zhadoff Chu (ZC) sequence for reference signal transmission. With conventional LTE, a cell specific root is used within each cell. There is a need for a more flexible association between roots and UEs that, for example, allows for multiple roots to be associated with a cell. The provided approach may help with maintaining re-use distance as networks become denser. The method provided in this embodiment improves the capabilities of automatic driving and ADAS of electric vehicles. The method can be applied to vehicle networking, such as V2X, LTE-V, V2X, etc.
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公开(公告)号：US20170289984A1
公开(公告)日：2017-10-05
申请号：US15181971
申请日：2016-06-14
摘要： Embodiments of the present disclosure provide mechanisms for the following procedures: network signaling for user equipment (UE) measurements; UE measurements; UE feedback; feedback adjustment at network nodes; scheduling; Acknowledgements/Negative Acknowledgements; and network-wide planning. Some or all of these mechanisms can be used in implementing distributed open-loop multi-user co-operative multi-point (MU-CoMP) technology as well as other non-CoMP, one-tier or centralized wireless transmission technologies. The mechanisms are in line with proposed no-cell technology for 5G communication networks.
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