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公开(公告)号：US12101817B2
公开(公告)日：2024-09-24
申请号：US17283420
申请日：2018-10-08
发明人： Jingya Li , Johan Axnäs , Henrik Sahlin , Sebastian Faxér , Naga Vishnu Kanth Irukulapati , Petter Ersbo
IPC分类号： H04W74/08 , H04W72/04 , H04W72/0446 , H04W74/0833
CPC分类号： H04W74/0833 , H04W72/0446
摘要： There is disclosed a method of operating a network node (100) in a radio access network, the method comprising detecting Physical Random Access CHannel, PRACH, transmission from a user equipment (10), wherein the PRACH transmission covers a plurality of time intervals, wherein detecting comprises associating different weights to different time intervals. The disclosure also pertains to related devices and methods.
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公开(公告)号：US20220369252A1
公开(公告)日：2022-11-17
申请号：US17875588
申请日：2022-07-28
IPC分类号： H04W56/00 , H04B17/336 , H04W76/28 , H04W68/00 , H04W72/00
摘要： According to certain embodiments, a method in a network node comprises determining (1306) whether an additional synchronization signal should be transmitted to one or more wireless devices. The method further comprises transmitting (1308) an indication whether the additional synchronization signal is available for use. For example, in response to determining that the additional synchronization signal should be transmitted, the indication signals a presence of the additional synchronization signal to the one or more wireless devices.
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公开(公告)号：US20220110136A1
公开(公告)日：2022-04-07
申请号：US17420753
申请日：2019-12-20
发明人： Jingya Li , Sebastian Faxér , Mårten Sundberg , Petter Ersbo , Naga Vishnu Kanth Irukulapati , Filip Barac
IPC分类号： H04W72/12 , H04B17/345
摘要： Embodiments include exemplary methods for CLI mitigation. The methods comprise receiving (1310), from at least one sending network node, a TDD configuration of the at least one sending network node, the TDD configuration identifying at least one slot of the TDD configuration as either a fixed uplink slot or a fixed downlink slot, and at least one slot of the TDD configuration as a flexible slot for which at least one symbol has an undefined transmission direction and the remaining symbols of the slot, if any, have a defined transmission direction. The methods also comprise adapting (1320) operations in a cell based on the received TDD configuration for mitigating CLI with the at least one sending network node. Embodiments also include network nodes configured to eperform the exemplary methods and/or procedures.
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公开(公告)号：US11044032B2
公开(公告)日：2021-06-22
申请号：US16490782
申请日：2017-11-20
发明人： Johan Axnäs , Robert Baldemair , Naga Vishnu Kanth Irukulapati , Andres Reial , Henrik Sahlin , Jianfeng Wang
摘要： A controller generates a sequence by one of (a) splitting a base sequence into multiple equal-size segments and adding said segments elementwise, and (b) generating several cyclically shifted versions of a base sequence, adding the cyclically shifted versions together, and truncating said cyclically shifted versions.
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公开(公告)号：US12101728B2
公开(公告)日：2024-09-24
申请号：US17875588
申请日：2022-07-28
IPC分类号： H04W56/00 , H04B17/336 , H04W68/00 , H04W72/30 , H04W76/28
CPC分类号： H04W56/001 , H04B17/336 , H04W68/005 , H04W72/30 , H04W76/28
摘要： According to certain embodiments, a method in a network node comprises determining (1306) whether an additional synchronization signal should be transmitted to one or more wireless devices. The method further comprises transmitting (1308) an indication whether the additional synchronization signal is available for use. For example, in response to determining that the additional synchronization signal should be transmitted, the indication signals a presence of the additional synchronization signal to the one or more wireless devices.
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公开(公告)号：US11930538B2
公开(公告)日：2024-03-12
申请号：US17276308
申请日：2019-09-02
CPC分类号： H04W74/0841 , H04L5/1469 , H04W74/0866
摘要： Embodiments include methods, performed by a network node, for configuring a physical random-access channel (PRACH) of a cell in a time-division-duplexed (TDD) radio access network (RAN). The methods include determining an increase in a level of remote interference in the cell and, in response to determining the increase, selecting a first PRACH configuration from a first subset of available PRACH configurations. The first subset of available PRACH configurations can be more robust against remote interference than a second subset of the available PRACH configurations, and the first subset can be exclusive of the second subset. The methods also include transmitting, to one or more user equipment (UEs) first information indicating that the first PRACH configuration should be used for accessing the cell via the PRACH. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.
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公开(公告)号：US11895646B2
公开(公告)日：2024-02-06
申请号：US17280169
申请日：2019-08-28
IPC分类号： H04W72/1273 , H04B17/345 , H04W16/28 , H04W56/00 , H04W74/08
CPC分类号： H04W72/1273 , H04B17/345 , H04W16/28 , H04W56/00 , H04W74/08
摘要： Systems and methods are disclosed herein for mapping Synchronization Signal Blocks (SSBs) to transmit beam directions taking into account remote interference. In this regard, embodiments of a method performed by a base station in a cellular communications network are disclosed. In some embodiments, a method performed by a base station in a cellular communications network comprises determining a beam direction to SSB index mapping, taking into consideration remote interference. The method further comprises using the beam direction to SSB index mapping. Because the SSBs have corresponding Physical Random Access Channel (PRACH) occasions, determining the beam direction to SSB index mapping taking into account remote interference improves PRACH preamble robustness.
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公开(公告)号：US11632805B2
公开(公告)日：2023-04-18
申请号：US17231399
申请日：2021-04-15
IPC分类号： H04W74/08 , H04L5/00 , H04L27/26 , H04W72/044
摘要： A method and device for two-step random accessing. The method includes transmitting a random access preamble and a data block on a time-frequency resource to a network device; and receiving a response message for the random accessing from the network device. The data block is encoded with an orthogonal cover code and/or a cyclic shift, and the data block comprises data information and a reference signal associated with the data information. Therefore, resource efficiency is improved significantly for an associated data message following a random access preamble with endurable minor performance degradation.
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公开(公告)号：US11405879B2
公开(公告)日：2022-08-02
申请号：US16639785
申请日：2018-08-31
IPC分类号： H04W56/00 , H04B17/336 , H04W76/28 , H04W68/00 , H04W72/00
摘要： According to certain embodiments, a method in a network node comprises determining (1306) whether an additional synchronization signal should be transmitted to one or more wireless devices. The method further comprises transmitting (1308) an indication whether the additional synchronization signal is available for use. For example, in response to determining that the additional synchronization signal should be transmitted, the indication signals a presence of the additional synchronization signal to the one or more wireless devices.
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公开(公告)号：US12126571B2
公开(公告)日：2024-10-22
申请号：US17427205
申请日：2020-02-14
CPC分类号： H04L5/0073 , H04B7/15542 , H04L5/0048 , H04L5/0053 , H04L5/18
摘要： A method of handling a remote interference (RI) between base stations of a time division duplex (TDD) network is provided. The method comprises or initiates a step of determining a set of radio resources for reference signals (RSs) for handling the RI. The method further comprises or initiates a step of handling the RI by at least one of transmitting and receiving one or more RSs using the radio resources of the determined set.
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