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1.发明授权公开(公告)号：US12068822B2
公开(公告)日：2024-08-20
申请号：US17346167
申请日：2021-06-11
发明人： SaiRamesh Nammi , Arunabha Ghosh
IPC分类号： H04W24/10 , H04B7/06 , H04L1/00 , H04L1/1812 , H04W88/02
CPC分类号： H04B7/0626 , H04B7/0632 , H04L1/0026 , H04L1/1812 , H04W24/10 , H04W88/02
摘要： Fast calculation of channel state information using demodulation reference signals (DM-RS) is provided herein. Channel state information is traditionally calculated based on the channel state reference signals (CS-RS). Demodulation reference signals, which are used for channel estimation for a data channel, are transmitted at different times than CS-RS however, and so some portions of the channel state information including layer indicator (LI) and channel quality indicator (CQI) can be calculated based on the demodulation reference signals, allowing a network to adapt more quickly to changing channel conditions, without having to transmit a CS-RS. Generally, precoding matrix indicator and rank indicator, which cannot be determined based on the DM-RS, don't change as often and are more stable over time, thus do not need to be calculated as frequently as the LI and CQI.
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公开(公告)号：US12028939B2
公开(公告)日：2024-07-02
申请号：US17993244
申请日：2022-11-23
发明人： Ralf Bendlin , Thomas Novlan , Arunabha Ghosh , Abdulrauf Hafeez
IPC分类号： H04W88/06 , H04B7/0452 , H04W16/14 , H04W72/23 , H04W74/0816
CPC分类号： H04W88/06 , H04W16/14 , H04W72/23 , H04W74/0816 , H04B7/0452
摘要： A closed loop carrier sense multiple access multiuser request to send and clear to send handshaking system is provided to efficiently allocate licensed and unlicensed spectrum for a plurality of mobile devices and across different base stations and mobile network operators. A user equipment device can be connected to a base station device via a first frequency in licensed spectrum, and a second frequency in unlicensed spectrum. The air interface on the first frequency can then be used to coordinate physical and virtual carrier sensing on a second frequency among a plurality of user equipment devices. Moreover, carrier sensing results from a plurality of UEs can be reported a base station device via the first frequency in licensed spectrum. The base station device can then schedule multiple user multiple input, multiple output (MU-MIMO) transmissions to a plurality of UEs on the second frequency in unlicensed spectrum.
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公开(公告)号：US11997041B2
公开(公告)日：2024-05-28
申请号：US16903452
申请日：2020-06-17
发明人： Xiaoyi Wang , Ralf Bendlin , Arunabha Ghosh , SaiRamesh Nammi
IPC分类号： H04L5/00
CPC分类号： H04L5/0053
摘要： An early termination system for blind decoding is provided to decrease the computational resources utilized when decoding the physical resources, and decrease the time spent decoding. A blind decoding priority list can be used by the mobile device to preferentially decode specific physical resource elements as it specifies the order of all the candidate physical downlink control channels (PDCCHs). When the physical resource elements are decoded, if there is no more downlink control information in that transmission time interval, the downlink control information can include a termination bit, and the mobile device, upon identifying the termination bit can cease blind decoding of the remainder candidates. In this way, the blind decoding process more quickly identifies the downlink control information, and subsequent blind decoding is halted.
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公开(公告)号：US20230246734A1
公开(公告)日：2023-08-03
申请号：US18296406
申请日：2023-04-06
发明人： SaiRamesh Nammi , Arunabha Ghosh
CPC分类号： H04L1/0026 , H04L25/0226 , H04W76/27 , H04L1/0003 , H04L5/005 , H04W72/23
摘要： Various embodiments disclosed herein provide for facilitating scheduling of uplink data using demodulation reference signal and scheduled resources. According to an embodiment, a system can comprise configuring a network device with a periodic rate of specified sounding reference signals with a periodicity using radio resource control signaling. The system can further facilitate estimating channel state information associated with a channel via which the network device communicates. The system can further facilitate transmitting an uplink grant with uplink transmission parameters to set up a physical uplink shared channel, wherein the uplink transmission parameters are determined based on the channel state information. The system can further facilitate estimating scheduling parameters based on a first estimation information associated with the physical uplink shared channel.
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公开(公告)号：US20230217410A1
公开(公告)日：2023-07-06
申请号：US18112608
申请日：2023-02-22
发明人： Ralf Bendlin , Arunabha Ghosh , Thomas Novlan , Milap Majmundar , Xiaoyi Wang
CPC分类号： H04W68/005 , H04W76/27 , H04W8/24 , H04W8/183
摘要： Various embodiments disclosed that describe systems to facilitate paging an idle subscriber identity module using a connected subscriber identity module operating in a single radio configuration. According to some embodiments, a system can comprise receiving a paging request that is designated for a first device of a communication device, wherein the communication device comprises the first device and a second device; determining whether the second device is in an active state; and in response to the determining that the second device is in the active state, transmitting a message to second device indicating that the paging message was received for the first device.
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公开(公告)号：US11671226B2
公开(公告)日：2023-06-06
申请号：US17347901
申请日：2021-06-15
CPC分类号： H04L5/0053 , H04L5/0023 , H04L5/0046 , H04W72/23 , H04W76/27
摘要： Various embodiments disclosed herein provide for switching between non-orthogonal and orthogonal multiple access protocols dynamically. A base station device can determine whether a user equipment device on a communication link should use a non-orthogonal multiple access system or an orthogonal multiple access system based on one or more attributes of the communication link, and send an indication of the selection to the user equipment device. The base station device can indicate the selection using a spreading factor parameter that is either equal to one or greater than one. If the spreading factor parameter is equal to one, that can indicate to the user equipment device to use an orthogonal multiple access system, whereas if the spreading factor parameter is greater than one, that can indicate to the user equipment device to use a non-orthogonal multiple access system.
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7.发明授权公开(公告)号：US11658762B2
公开(公告)日：2023-05-23
申请号：US17219796
申请日：2021-03-31
CPC分类号： H04J13/16 , H04B1/707 , H04L5/0053 , H04W72/042
摘要： The gains with non-orthogonal multiple access (NOMA) for uplink data transmissions can be high when chosen codes are orthogonal. However, when codes are non-orthogonal, the gains can be low. NOMA can be used when there is more than one mobile device using the same resources. Since orthogonal codes cannot be possible for every length, codes which have low cross-correlation properties can be used. However, when there are a large number of mobile devices using the same resources, the cross-correlation between the codes can cause interference to the mobile devices. Reducing the gains of a NOMA system can reduce the overall throughput. Thus, transmitting data on the same resources in a NOMA can occur in spite of the interference to the UEs transmitting data on the same resources. Therefore, a non-orthogonal multiple access design for a 5G network can mitigate interference.
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公开(公告)号：US20230086340A1
公开(公告)日：2023-03-23
申请号：US17993244
申请日：2022-11-23
发明人： Ralf Bendlin , Thomas Novlan , Arunabha Ghosh , Abdulrauf Hafeez
摘要： A closed loop carrier sense multiple access multiuser request to send and clear to send handshaking system is provided to efficiently allocate licensed and unlicensed spectrum for a plurality of mobile devices and across different base stations and mobile network operators. A user equipment device can be connected to a base station device via a first frequency in licensed spectrum, and a second frequency in unlicensed spectrum. The air interface on the first frequency can then be used to coordinate physical and virtual carrier sensing on a second frequency among a plurality of user equipment devices. Moreover, carrier sensing results from a plurality of UEs can be reported a base station device via the first frequency in licensed spectrum. The base station device can then schedule multiple user multiple input, multiple output (MU-MIMO) transmissions to a plurality of UEs on the second frequency in unlicensed spectrum.
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公开(公告)号：US20230026727A1
公开(公告)日：2023-01-26
申请号：US17935946
申请日：2022-09-28
发明人： Ralf Bendlin , SaiRamesh Nammi , Arunabha Ghosh , Xiaoyi Wang
摘要： The disclosed subject matter is directed towards semi-static or dynamic shifting of New Radio demodulation reference signals to avoid collisions with LTE cell specific reference signals (LTE CRS) in a physical downlink shared channel symbol (PDSCH). In dynamic spread spectrum (DSS) deployments, where NR PDSCH mapping type B is used, e.g., to allow for two NR physical downlink control channel symbols, when the NR PDSCH starts on a symbol carrying LTE CRS, the NR DMRS of the NR PDSCH is shifted to the first symbol of the NR PDSCH not carrying LTE CRS. Whether mapping type A or mapping type B, shifting the symbol containing NR DMRS facilitates the use of two DMRS symbols without colliding with LTE CRS.
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10.发明授权公开(公告)号：US11552743B2
公开(公告)日：2023-01-10
申请号：US17237025
申请日：2021-04-21
发明人： Xiaoyi Wang , Arunabha Ghosh , Salam Akoum , SaiRamesh Nammi
摘要： Intelligent hybrid automatic repeat request (HARQ) feedback can better support link adaption. Thus, in addition to the traditional HARQ feedback, which is to relay acknowledgement (ACK) and negative acknowledgement (NAK) data based on a decoding result, a new state for the HARQ feedback can be represented as “ACK+”. Consequently, ACK+ can be used to indicate to the network that a modulation and coding scheme (MCS) of a current data packet is too conservative, and the user equipment (UE) is capable of supporting a more aggressive MCS.
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