-
公开(公告)号：US20240080175A1
公开(公告)日：2024-03-07
申请号：US18389023
申请日：2023-11-13
发明人： Janne Peisa , Michael Meyer , Johan Torsner , Stefan Parkvall , Magnus Stattin , Mats Sagfors
IPC分类号： H04L7/00 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1867 , H04W56/00
CPC分类号： H04L7/0079 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1887 , H04W56/001 , H04L69/324
摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.
-
公开(公告)号：USRE49808E1
公开(公告)日：2024-01-16
申请号：US17154128
申请日：2021-01-21
发明人： Magnus Stattin , Michael Meyer , Janne Peisa , Ghyslain Pelletier , Mats Fredrik Sågfors , Per Johan Torsner , Henning Wiemann
CPC分类号： H04L5/0055 , H04W36/02 , H04W36/08 , H04W36/18 , H04L1/1867 , H04L47/34 , H04W88/16
摘要： A mobile station is configured to support handover from a source base station to a target base station. The mobile station receives signaling from the target base station that indicates Packet Data Convergence Protocol (PDCP) protocol data units which have been successfully received at the target base station. In response, the mobile station generates further PDCP protocol data units for missing PDCP service data units from corresponding PDCP service data units buffered at the mobile station. The generating comprises using a different header compression state from that which was used for the missing PDCP service data units and ciphering specific to a connection with the target base station. The mobile station transmits the further PDCP protocol data units to the target base station.
-
公开(公告)号：US11849017B2
公开(公告)日：2023-12-19
申请号：US17301424
申请日：2021-04-02
发明人： Janne Peisa , Michael Meyer , Johan Torsner , Stefan Parkvall , Magnus Stattin , Mats Sågfors
IPC分类号： H04L7/00 , H04L1/1867 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04W56/00 , H04L69/324
CPC分类号： H04L7/0079 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1887 , H04W56/001 , H04L69/324
摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.
-
公开(公告)号：US11729831B2
公开(公告)日：2023-08-15
申请号：US17130367
申请日：2020-12-22
发明人： Michael Meyer , Magnus Stattin
CPC分类号： H04W74/0833 , H04W72/0446 , H04W72/23 , H04W88/02 , H04W88/08
摘要： The present invention relates to methods and apparatuses (radio base station) and UE for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE can then use the received information and based on that information perform a random access.
-
公开(公告)号：US20220376838A1
公开(公告)日：2022-11-24
申请号：US17328448
申请日：2021-05-24
发明人： Michael Meyer , Johan Torsner , Henning Wiemann , Magnus Stattin
摘要： The present invention relates to a method in a cellular communication system, for avoiding errors in a HARQ process, wherein an NDI flag is used both for indicating either semi-persistent scheduling, SPS, activation or SPS retransmissions, and also for indicating, by toggling of the flag, a new transmission in dynamic scheduling mode. The method comprises the steps of receiving, in a scheduling message, an indication that dynamically scheduled transmission will take place; if a semi-persistent resource has occurred for the same HARQ process since a previously received indication for dynamically scheduled transmission, then considering the NDI flag to be toggled regardless of the value of the NDI flag. Thus, if the condition is fulfilled, a UE will always regard the NDI flag as indicating or requesting a new data transmission.
-
公开(公告)号：US20210226765A1
公开(公告)日：2021-07-22
申请号：US17301424
申请日：2021-04-02
发明人： Janne Peisa , Michael Meyer , Johan Torsner , Stefan Parkvall , Magnus Stattin , Mats Sågfors
摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.
-
公开(公告)号：US10912127B2
公开(公告)日：2021-02-02
申请号：US16666487
申请日：2019-10-29
发明人： Michael Meyer , Magnus Stattin
摘要： The present invention relates to methods and apparatuses (radio base station) and UE for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE can then use the received information and based on that information perform a random access.
-
公开(公告)号：US10165601B2
公开(公告)日：2018-12-25
申请号：US15619766
申请日：2017-06-12
发明人： Michael Meyer , Magnus Stattin
摘要： The present invention relates to methods and apparatuses radio base station (120, 600) and UE (110, 700) for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE (110, 700) can then use the received information and based on that information perform a random access.
-
公开(公告)号：US20180323954A1
公开(公告)日：2018-11-08
申请号：US16022832
申请日：2018-06-29
发明人： Janne Peisa , Michael Meyer , Johan Torsner , Stefan Parkvall , Magnus Stattin , Mats Sågfors
CPC分类号： H04L7/0079 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1887 , H04L69/324 , H04W56/001
摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.
-
公开(公告)号：US10033522B2
公开(公告)日：2018-07-24
申请号：US15267773
申请日：2016-09-16
发明人： Janne Peisa , Michael Meyer , Johan Torsner , Stefan Parkvall , Magnus Stattin , Mats Sågfors
CPC分类号： H04L7/0079 , H04L1/08 , H04L1/1607 , H04L1/1812 , H04L1/1887 , H04L69/324 , H04W56/001
摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.022 秒)
