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1. 发明申请

WO2023014269A1 SYNCHRONIZATION SIGNAL BLOCK (SSB) TRANSMISSIONS AND MONITORING FOR REDUCED CAPABILITY (REDCAP) WIRELESS DEVICES 审中-公开
公开(公告)号：WO2023014269A1
公开(公告)日：2023-02-09
申请号：PCT/SE2022/050736
申请日：2022-08-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MOZAFFARI, Mohammad , THANGARASA, Santhan , KAZMI, Muhammad Ali , WANG, Yi-Pin Eric , WALLÉN, Anders
IPC分类号： H04L5/00
摘要： A method, system and apparatus are disclosed. According to one or more embodiments, A non-legacy wireless device (22) is provided. The non-legacy wireless device (22) includes processing circuitry (84) configured to: determine whether at least one rule is met, the at least one rule being associated with whether to expect one of a first synchronization signal block, SSB, in a first downlink, DL, bandwidth part, BWP, for the non-legacy wireless device (22) and a second SSB that is not in the first DL BWP, monitor one of the first SSB and second SSB based at least on the determination, and perform at least one action based on the monitored one of the first SSB and second SSB.

2. 发明申请

WO2022197232A1 RANDOM ACCESS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2022197232A1
公开(公告)日：2022-09-22
申请号：PCT/SE2022/050249
申请日：2022-03-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MOZAFFARI, Mohammad , WANG, Yi-Pin Eric , WALLÉN, Anders , CHEN, Yi-Ju
IPC分类号： H04W74/08
摘要： A wireless communication device (12) is configured for random access to a wireless communication network (10). The wireless communication device (12) transmits, to the wireless communication network (10), a random access preamble (14) in a random access channel occasion (18) that comprises one or more symbols. The wireless communication device (12) monitors for a response (20) to the random access preamble (14) within a response window (24). The response window (24) starts in an earliest control resource set (22-2) that begins at least a minimum number (Dmin) of symbols after the last symbol (18L) of the random access channel occasion (18), wherein the minimum number of symbols is greater than one.

3. 发明申请

WO2021201757A1 CORESET ENHANCEMENT FOR REDUCED BANDWIDTH UES INITIAL ACCESS 审中-公开
公开(公告)号：WO2021201757A1
公开(公告)日：2021-10-07
申请号：PCT/SE2021/050279
申请日：2021-03-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MOZAFFARI, Mohammad , SUI, Yutao , WANG, Yi-Pin Eric , BERGMAN, Johan , WALLÉN, Anders , HÖGLUND, Andreas , KITTICHOKECHAI, Kittipong , SUSITAIVAL, Riikka , CHEN, Yi-Ju
IPC分类号： H04L5/00 , H04L5/0053 , H04L5/0064
摘要： Systems and methods are disclosed herein for Control Resource Set (CORESET) enhancements for initial access. In one embodiment, a method performed by a wireless communication device comprises receiving and decoding a Physical Downlink Control Channel (PDCCH) transmission in a CORESET in accordance with at least a portion of a Control Channel Element (CCE) to Resource Element Group (REG) mapping. The PDCCH transmission comprises one or more CCEs. The CCE to REG mapping comprises an interleaved portion that maps the one or more CCEs to a first set of REGs that are spread across a bandwidth of the CORESET, and a second portion that maps at least a portion of an additional CCE to at least a REG in a frequency gap between two REGs in the first set of REGs, the additional CCE corresponding to one of the CCEs mapped to the first set of REGs.

4. 发明申请

WO2021173061A1 ENABLING NEW PHYSICAL DOWNLINK CONTROL CHANNEL AGGREGATION LEVELS FOR REDUCED CAPABILITY USER EQUIPMENT 审中-公开
公开(公告)号：WO2021173061A1
公开(公告)日：2021-09-02
申请号：PCT/SE2021/050149
申请日：2021-02-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： MOZAFFARI, Mohammad , WALLÉN, Anders , KITTICHOKECHAI, Kittipong , WANG, Yi-Pin Eric , SUI, Yutao , HÖGLUND, Andreas
IPC分类号： H04L5/00 , H04W72/04 , H04W72/12
摘要： A method (1200) performed by a wireless device (110) for decoding a physical downlink control channel, PDCCH, candidate is provided. The method includes the wireless device being configured (1202) with an aggregation level that is not a power of 2. The aggregation level is a number of control channel elements (CCEs) used per 0PDCCH candidate. The wireless device decodes (1204) at least one PDCCH candidate using the aggregation level that is not a power of 2.

5. 发明申请

WO2021126045A1 METHODS FOR ENABLING A LOW BANDWIDTH WIRELESS DEVICE TO ACCESS A NEW RADIO CELL VIA A WIDEBAND CONTROL RESOURCE SET 审中-公开
公开(公告)号：WO2021126045A1
公开(公告)日：2021-06-24
申请号：PCT/SE2020/051168
申请日：2020-12-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： WANG, Yi-Pin Eric , LIN, Xingqin , SUI, Yutao , MOZAFFARI, Mohammad , FELTRIN, Luca , CHEN, Yi-Ju , HÖGLUND, Andreas
IPC分类号： H04L5/00 , H04W8/24 , H04W76/20 , H04L1/08 , H04W48/12 , H04W72/12 , H04W74/00
摘要： A method by a reduced capability wireless device includes receiving system information from a network node. The system information comprising information specific to the reduced capability wireless device. The reduced capability wireless device performs an operation using at least the information specific to the reduced capability wireless device received in the system information.

6. 发明申请

WO2021118434A1 METHODS FOR ENABLING A REDUCED BANDWIDTH WIRELESS DEVICE TO ACCESS A CELL 审中-公开
公开(公告)号：WO2021118434A1
公开(公告)日：2021-06-17
申请号：PCT/SE2020/051173
申请日：2020-12-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SUI, Yutao , WANG, Yi-Pin Eric , LING, Johan , HÖGLUND, Andreas , LIBERG, Olof , CHEN, Yi-Ju , MOZAFFARI, Mohammad
IPC分类号： H04W48/08 , H04W56/00 , H04W72/00 , H04W88/10
摘要： There is disclosed a method (300) of operating a wireless device (610) in a wireless communication network. The method comprises detecting (301) first synchronization signaling of a first cell on first time and frequency resources. The first synchronization signaling comprises at least a first synchronization signal (501) and a second synchronization signal (502). The method further comprises detecting (302) indication signaling (503) on second time and frequency resources. The second time and frequency resources are derived based on the first time and frequency resources. The method further comprises accessing (303) the first cell if the indication signaling is detected on the second time and frequency resources. Accessing the first cell comprises decoding a first system information message on a broadcast channel (504) of the first cell. The first system information message indicates time and frequency resources of a first resource set. The disclosure also pertains to related devices and methods.

7. 发明申请

WO2018087706A1 REFERENCE SIGNAL DESIGN WITH ZADOFF-CHU SEQUENCES 审中-公开
标题翻译： ZADOFF-CHU序列的参考信号设计
公开(公告)号：WO2018087706A1
公开(公告)日：2018-05-17
申请号：PCT/IB2017/057045
申请日：2017-11-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LIN, Xingqin , ADHIKARY, Ansuman , KHAYRALLAH, Ali S. , KOORAPATY, Havish , WANG, Yi-Pin Eric
IPC分类号： H04L27/26
摘要： Provided are methods (400) of estimating a time delay and/or a frequency shift of a reference signal. Such methods include receiving (405) a first reference signal that is generated using a first Zadoff-Chu (ZC) sequence, receiving (410) a second reference signal that is generated using a second ZC sequence that is different than the first ZC sequence, and processing (415) the first reference signal and the second reference signal to estimate at least one of the time delay and the frequency shift of the first reference signal and/or the second reference signal.
摘要翻译：提供了估计参考信号的时间延迟和/或频移的方法（400）。这样的方法包括：接收（405）使用第一Zadoff-Chu（ZC）序列生成的第一参考信号;接收（410）使用与第一ZC序列不同的第二ZC序列生成的第二参考信号; 以及处理（415）第一参考信号和第二参考信号以估计第一参考信号和/或第二参考信号的时间延迟和频移中的至少一个。

8. 发明申请

WO2018055512A2 FREQUENCY ADJUSTMENT FOR HIGH SPEED LTE DEPLOYMENTS 审中-公开
标题翻译：高速LTE部署的频率调整
公开(公告)号：WO2018055512A2
公开(公告)日：2018-03-29
申请号：PCT/IB2017/055663
申请日：2017-09-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LIN, Xingqin , ADHIKARY, Ansuman , KHAYRALLAH, Ali S. , WANG, Yi-Pin Eric
IPC分类号： H04L27/00 , H04W56/00
CPC分类号： H04B7/18532 , H04B7/18506 , H04B7/1855 , H04B7/2125 , H04L27/0014 , H04L27/2666 , H04L2027/0026 , H04L2027/0095 , H04W56/0035 , H04W74/0833 , H04W84/005
摘要： Systems and methods relating to correction of a Doppler/frequency offset in a wireless communication system are disclosed. In some embodiments, a method of operation of a node comprises estimating a Doppler/frequency offset for a wireless device based on an uplink signal received from the wireless device and providing a frequency adjustment to the wireless device that corrects for the Doppler/frequency offset. In this manner, the Doppler/frequency offset for a wireless device is determined and corrected.
摘要翻译：公开了涉及校正无线通信系统中的多普勒/频率偏移的系统和方法。在一些实施例中，节点的操作方法包括基于从无线设备接收的上行链路信号来估计无线设备的多普勒频率偏移，并向无线设备提供校正多普勒频率偏移的频率调整。以这种方式，无线设备的多普勒/频率偏移被确定和校正。

9. 发明申请

WO2017078607A1 PROCESSING A CONSTANT AMPLITUDE SEQUENCE FOR TRANSMISSION 审中-公开
标题翻译：处理传输的恒定振幅序列
公开(公告)号：WO2017078607A1
公开(公告)日：2017-05-11
申请号：PCT/SE2016/051090
申请日：2016-11-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LIN, Xingqin , SUI, Yutao , GRÖVLEN, Asbjörn , ADHIKARY, Ansuman , WANG, Yi-Pin Eric , JOHANSSON, Niklas
IPC分类号： H04L25/03 , H04J13/00 , H04L27/26
CPC分类号： H04L25/03834 , H04J13/0062 , H04J13/105 , H04L27/2613 , H04L27/2614 , H04L27/2692
摘要： An apparatus (10) and method (100) for processing a constant amplitude sequence (12) yields a transmission signal (32) exhibiting a low peak to average power ratio, PAPR. The signal (32) may be suitable for transmission (140) in the uplink as a random access preamble or uplink measurement signal for handover assessment. The signal (32) may be suitable for transmission (140) in the downlink as a synchronization signal. The method (100) comprises extending (110) a constant amplitude sequence (12), such as a Zadoff-Chu sequence, by adding to the sequence one or more complex-valued elements that have the same amplitude as other complex-valued elements in the sequence (12). The method (100) also includes upsampling (120) the extended sequence (16) by linearly interpolating a difference in phase between adjacent complex-valued elements in the extended sequence (16). The method (100) further entails limiting (130) a bandwidth of the upsampled sequence (20) by low pass filtering the upsampled sequence (20). The method (100) may also include transmitting (140) the band limited sequence (28). Due to the low PAPR of the transmitted signal (32), a power amplifier, which may be integrated with other circuits in a System-on-Chip, may have a low backoff. This yields high efficiency for the amplifier, hence low power consumption, and hence extended battery life in radio network devices.
摘要翻译：用于处理恒定幅度序列（12）的设备（10）和方法（100）产生表现出低峰均功率比PAPR的传输信号（32）。信号（32）可以适合于在上行链路中作为用于切换评估的随机接入前导码或上行链路测量信号的传输（140）。信号（32）可以适合于在下行链路中作为同步信号进行传输（140）。方法（100）包括通过向序列添加一个或多个复数值元素来扩展（110）诸如Zadoff-Chu序列的恒定幅度序列（12），该复数值元素具有与其他复数值元素序列（12）。方法（100）还包括通过对扩展序列（16）中的相邻复数值元素之间的相位差进行线性内插来对扩展序列（16）进行上采样（120）。方法（100）还需要通过低通滤波上采样序列（20）来限制（130）上采样序列（20）的带宽。方法（100）还可以包括发送（140）带限制序列（28）。由于发射信号（32）的低PAPR，可能与片上系统中的其他电路集成的功率放大器可能具有低退避。这为放大器提供了高效率，因此功耗低，因此延长了无线电网络设备的电池寿命。

10. 发明申请

WO2017074246A1 SYSTEMS AND METHODS OF PERFORMING DATA TRANSMISSION AND RECEPTION IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中执行数据传输和接收的系统和方法
公开(公告)号：WO2017074246A1
公开(公告)日：2017-05-04
申请号：PCT/SE2016/051036
申请日：2016-10-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： LIN, Xingqin , LOPEZ, Miguel , KANT, Shashi , SUI, Yutao , GRÖVLEN, Asbjörn , JOHANSSON, Niklas , WANG, Yi-Pin Eric , ADHIKARY, Ansuman
IPC分类号： H04L27/26
CPC分类号： H04L27/2602 , H04L27/2607
摘要： Systems and methods of performing data transmission and reception in a communication system are presented. In one exemplary embodiment, a method implemented by a wireless device for transmitting a block of user or pilot data in a communication system may include generating (1301) a transmit signal that represents the block of user or pilot data. The transmit signal may include a guard period excluding any of the user or pilot data in the block. Further, the transmit signal may include, after the guard period, a cyclic prefix formed from a tail end portion of the block of user or pilot data. In addition, the transmit signal may include, after the cyclic prefix, multiple contiguous repetitions of the block of user or pilot data. The method may also include transmitting (1303) the generated transmit signal.
摘要翻译：介绍了在通信系统中执行数据发送和接收的系统和方法。在一个示例性实施例中，由无线设备实现的用于在通信系统中传输用户或导频数据块的方法可以包括生成（1301）表示用户或导频数据块的传输信号。发送信号可以包括排除块中的任何用户或导频数据的保护时段。此外，发送信号可以在保护时段之后包括从用户块或导频数据块的尾端部分形成的循环前缀。另外，发送信号可以在循环前缀之后包括用户或导频数据块的多个连续重复。该方法还可以包括发送（1303）所生成的发送信号。

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