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1. 发明申请

WO2020024202A1 DYNAMIC ADJUSTMENT OF PDCCH MONITORING OCCASIONS 审中-公开
公开(公告)号：WO2020024202A1
公开(公告)日：2020-02-06
申请号：PCT/CN2018/098239
申请日：2018-08-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LI, Gen
发明人： LI, Gen , KARAKI, Reem , BELLESCHI, Marco , CHENG, Jung-Fu
IPC分类号： H04W24/00 , H04W72/04
摘要： Systems and methods are disclosed herein for dynamic control of Physical Downlink Control Channel (PDCCH) monitoring occasions for a User Equipment (UE) using, e.g., layer 1 signaling.

2. 发明申请

WO2019095246A1 UPLINK TRANSMISSION SCHEME 审中-公开
公开(公告)号：WO2019095246A1
公开(公告)日：2019-05-23
申请号：PCT/CN2017/111511
申请日：2017-11-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LI, Gen
发明人： LI, Gen , KARAKI, Reem , ALRIKSSON, Peter , CHENG, Jung-Fu , MUKHERJEE, Amitav
IPC分类号： H04W16/30
摘要： A method in a wireless device for performing an uplink transmission to a base station in a wireless access system, wherein the wireless access system comprises one or more mini-slot configurations, the method comprising performing a clear channel assessment for identifying a transmission opportunity and determining the start of a mini-slots. The wireless device performing an uplink transmission within the determined mini-slot wherein the transmission is performed according to a predetermined configuration for mini-slot communication between the base station and the wireless device, such that the base station can identify the start of the uplink transmission.

3. 发明申请

WO2019158123A1 METHOD AND SYSTEM FOR SCHEDULED UPLINK TRANSMISSION TO RESOLVE CHANNEL INTERFERENCE IN A WIRELESS NETWORK USING A COORDINATION INDICATOR 审中-公开
公开(公告)号：WO2019158123A1
公开(公告)日：2019-08-22
申请号：PCT/CN2019/075213
申请日：2019-02-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LI, Gen
发明人： LI, Gen , CHENG, Jung-Fu
IPC分类号： H04W72/08
摘要： A method implemented in a base station is provided. The method comprises transmitting, by the base station to a terminal device, an uplink grant to trigger an uplink transmission. The method further comprises decoding uplink data and a coordination indicator successfully from the uplink transmission from the terminal device, wherein the coordination indicator identifies a resource coordination zone to coordinate interference resolution. The method further comprises scheduling or deferring a further uplink transmission from the terminal device based on detection of one or more messages in the resource coordination zone identified by the coordination indicator.

4. 发明申请

WO2019158124A1 METHOD AND SYSTEM FOR AUTONOMOUS TRANSMISSION TO RESOLVE CHANNEL INTERFERENCE IN A WIRELESS NETWORK USING A COORDINATION INDICATOR 审中-公开
公开(公告)号：WO2019158124A1
公开(公告)日：2019-08-22
申请号：PCT/CN2019/075218
申请日：2019-02-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LI, Gen
发明人： LI, Gen , CHENG, Jung-Fu
IPC分类号： H04W72/04
摘要： A method implemented in a source network device is provided. The method comprises transmitting, by the source network device to the destination network device, a coordination indicator and a portion of data for the destination network device, wherein the coordination indicator identifies a resource coordination zone to coordinate interference resolution. The method further comprises determining, by the source network device prior to a time that the source network device is allocated to transmit to the destination network device again, whether an acknowledgement is received from the destination network device. The method further comprises transmitting the portion of data again or a further portion of the data to the destination network device based on receipt of the acknowledgement from the destination network device and detection of one or more messages in the resource coordination zone identified by the coordination indicator.

5. 发明申请

WO2022238574A1 CHANNEL ESTIMATION TECHNIQUE 审中-公开
公开(公告)号：WO2022238574A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/063090
申请日：2022-05-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ALMQUIST, Gustav , CHENG, Jung-Fu , GRANT, Stephen
IPC分类号： H04L25/02 , H04L25/0206 , H04L25/0228
摘要： A method of performing channel estimation for a radio channel between a transmitter and a receiver of a radio access network, RAN comprises the step of performing an initial channel estimation (204) of the radio channel for each of a plurality of frequency ranges 5 (502), based on a radio signal received on the radio channel from the transmitter, the radio signal comprising a signal sequence (510) out of the set of signal sequences (510) in each of the frequency ranges (502), to obtain an initial channel estimate (504) for each frequency range (502), and applying a filter (206) to the initial channel estimates (504) for the frequency ranges (502), a length (508) of the filter (206) in the frequency domain 10 being greater than lengths of the frequency ranges (502), to obtain a filtered channel estimate (506) for all subcarriers (406) in the respective one of the frequency ranges (502).

6. 发明申请

WO2022211717A1 LOW COMPLEXITY INTERCARRIER INTERFERENCE (ICI) COMPENSATION ALGORITHM: CYCLIC BLOCK PHASE TRACKING REFERENCE SIGNAL (PTRS) SEQUENCE DESIGN 审中-公开
公开(公告)号：WO2022211717A1
公开(公告)日：2022-10-06
申请号：PCT/SE2022/050320
申请日：2022-03-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CHENG, Jung-Fu , AFSHANG, Mehrnaz , GRANT, Stephen
IPC分类号： H04L27/26 , H04L5/00 , H04L25/03
摘要： A method, system and apparatus for low complexity intercarrier interference (ICI) compensation algorithms and cyclic block phase tracking reference signal (PTRS) sequence design are disclosed. According to one aspect, a method in a network node includes generating a PTRS, having a PTRS sequence that is configured to lower a complexity of an ICI compensation algorithm. According to another aspect, a method in a wireless device (WD) includes determining an ICI compensation algorithm based at least in part on a PTRS having a PTRS sequence, and applying the determined ICI compensation algorithm to compensate for ICI.

7. 发明申请

WO2022084095A1 BEAMFORMING IN LISTEN-BEFORE-TALK ENVIRONMENTS 审中-公开
公开(公告)号：WO2022084095A1
公开(公告)日：2022-04-28
申请号：PCT/EP2021/078112
申请日：2021-10-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： VIEIRA, Joao , CHENG, Jung-Fu , WILHELMSSON, Leif , NILSSON, Johan , MALEKI, Sina
IPC分类号： H04B7/06 , H04W16/14 , H04W74/08
摘要： A beamforming method is disclosed of a multi-antenna transmitter configured for operation in a listen- before-talk (LBT) environment. The method comprises transmitting – in transmission resources of a collection of one or more transmission resources corresponding to an LBT sensing event – according to a primary emission pattern (e.g., a primary beam) having a main lobe in a primary angular direction associated with a channel path towards an intended receiver, and transmitting according to one or more secondary emission patterns. The one or more secondary emission patterns – when accumulated over the collection of transmission resources corresponding to the LBT sensing event – are configured to indicate channel occupancy in angular directions other than the primary angular direction. In some embodiments, the one or more secondary emission patterns comprises a plurality of secondary emission patterns (e.g., a plurality of secondary beams). Transmitting according to the one or more secondary emission patterns may comprise executing a sweep of the respective secondary beams over the collection of transmission resources corresponding to the LBT sensing event. In some embodiments, the one or more secondary emission patterns consists of a single secondary emission pattern (e.g., an omni-directional emission pattern). Corresponding apparatus, transmitter, network node, wireless communication device, and computer program product are also disclosed.

8. 发明申请

WO2022079048A1 MULTI-SLOT REFERENCE SIGNAL TRIGGERING USING REFERENCE SIGNAL IDENTITIES 审中-公开
公开(公告)号：WO2022079048A1
公开(公告)日：2022-04-21
申请号：PCT/EP2021/078216
申请日：2021-10-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： GRANT, Stephen , CHENG, Jung-Fu , KARAKI, Reem
IPC分类号： H04L5/00
摘要： There is provided a network node. The network node being configured to communicate with a wireless device. The network node includes a radio interface and processing circuitry configured to transmit a configuration of a set of reference signals via RRC signaling to the wireless device. The radio interface and processing circuitry are further configured to transmit a downlink control information, DCI, that triggers the set of reference signals in multiple slots to the wireless device, where each set of reference signal is confined to OFDM symbols within a slot. In some embodiments, the DCI includes a field which indicates a reference signal set combination ID. In further embodiments the reference signal set combination ID indicates a list of RS set IDs. There is also provided a method for a network node, a wireless device and a method for a wireless device.

9. 发明申请

WO2022029733A1 DE-ICI FILTER ESTIMATION FOR PHASE NOISE MITIGATION 审中-公开
公开(公告)号：WO2022029733A1
公开(公告)日：2022-02-10
申请号：PCT/IB2021/057297
申请日：2021-08-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： HUI, Dennis , AFSHANG, Mehrnaz , CHENG, Jung-Fu , GRANT, Stephen
IPC分类号： H04L25/03 , H04L2025/03414 , H04L25/03821
摘要： According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.

10. 发明申请

WO2021156212A1 RECEIVER ASSISTED DIRECTIONAL CHANNEL SENSING FOR NR-U 审中-公开
公开(公告)号：WO2021156212A1
公开(公告)日：2021-08-12
申请号：PCT/EP2021/052338
申请日：2021-02-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LIU, Yuhang , CHENG, Jung-Fu , ALRIKSSON, Peter , DO, Tai , MIRZAEI, Aliakbar
IPC分类号： H04W16/14
摘要： A first group embodiments provide a method performed by a network node (NN) in a wireless network comprising responsive to a DL data intended for a user equipment (UE), transmitting a first short signal burst to the UE over a channel using a directional beam, and based on detecting a first response to the first short signal burst from the UE indicating that the channel is available, transmitting at least a portion of the DL data to the UE over the channel using the directional beam. A second group embodiments provide a method performed by a NN comprising determining availability of a channel between the network node and the UE using a directional beam, based on determining that the channel is available, transmitting a first resource grant for transmission of a UL data by the UE, and receiving the UL data from the UE over the channel using the directional beam.

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