METHOD AND APPARATUS FOR DETERMINING CHANNEL QUALITY INDEX IN MULTIPLE USER-MIMO COMMUNICATION NETWORKS
    1.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING CHANNEL QUALITY INDEX IN MULTIPLE USER-MIMO COMMUNICATION NETWORKS 有权
    在多用户MIMO通信网络中确定通道质量指标的方法和装置

    公开(公告)号:US20130128820A1

    公开(公告)日:2013-05-23

    申请号:US13265639

    申请日:2010-04-21

    Abstract: In order to minimize the control signaling overhead associated with transmitting CQI data from mobile stations to base stations in wireless communication networks supporting MU-MIMO, the CQI during MU-MIMO operation is estimated based on SU-MIMO CQI data, mobile station geometry data, and mobile station PMI (Precoding Matrix Index) data. More particularly, the base station maintains and updates a knowledge pool that correlates geometry data and learned impact of interfering precoder data to degradation of CQI values responsive to switching from SU-MIMO operation to MU-MIMO operations. Then, when the base station switches from SU-MIMO operation to MU-MIMO operation, it consults the knowledge pool to predict the degradation in CQI and subtracts them from the known, pre-switching SU-MIMO CQI feedback data for each relevant mobile station to predict the post-switching MU-MIMO CQIs for that mobile station.

    Abstract translation: 为了最小化支持MU-MIMO的无线通信网络中的将CQI数据从移动站发送到基站的控制信令开销,基于SU-MIMO CQI数据,移动站几何数据, 和移动台PMI(预编码矩阵索引)数据。 更具体地,基站维护和更新将几何数据与学习的干扰预编码器数据的影响相关联的知识库与响应于从SU-MIMO操作切换到MU-MIMO操作的CQI值劣化。 然后,当基站从SU-MIMO操作切换到MU-MIMO操作时,它咨询知识库以预测CQI中的劣化,并从每个相关移动站的已知的预切换SU-MIMO CQI反馈数据中减去它们 以预测该移动台的后切换MU-MIMO CQI。

    METHODS AND SYSTEMS FOR CHANNEL STATE ACQUISITION WITH SELF-INTERFERENCE IN FULL DUPLEX SYSTEMS

    公开(公告)号:US20250039873A1

    公开(公告)日:2025-01-30

    申请号:US18801901

    申请日:2024-08-13

    Abstract: Some aspects of the present disclosure enable a network to account for impacts of digital transmit and receive precoding at the user equipment (UE) side in the presence of UE self-interference that may occur during full duplex (FD) operation. Some aspects of the present disclosure include joint downlink (DL) node selection or beam selection, or both, and UE self-interference emulation, so that the UE is enabled with FD operation that includes receiving from one node, but transmitting towards another node. When compared with the case where the UE receives from, and transmits, to a same node, because when two separate nodes are involved and the two nodes are more physically separated, the chance of achieving higher cross-link isolation, and hence FD transmission, is higher.

    Sensing-assisted channel estimation

    公开(公告)号:US12040917B2

    公开(公告)日:2024-07-16

    申请号:US17748141

    申请日:2022-05-19

    CPC classification number: H04L25/0204 H04B7/0897 H04L25/0212

    Abstract: Some embodiments of the present disclosure provide for use of a linear chirp signal as a basis for a sensing signal. Modification of the linear chirp signal by a signature function can allow a receiver of the sensing signal to determine an identity for a source of the sensing signal. Accordingly, upon processing the received sensing signal to obtain path parameter estimates, the receiver can direct a transmission of an indication of the path parameter estimates to the source of the sensing signal. Aspects of the present application relate to performing multi-node, multi-path channel estimation on the basis of processing the received sensing signal. Conveniently, the processing is performed with low complexity.

    Terrestrial and non-terrestrial communication systems, apparatuses, and methods

    公开(公告)号:US11979220B2

    公开(公告)日:2024-05-07

    申请号:US18115851

    申请日:2023-03-01

    Abstract: The present disclosure relates, in part, to non-terrestrial communication systems, and in some embodiments to the integration of terrestrial and non-terrestrial communication systems. Non-terrestrial communication systems can provide a more flexible communication system with extended wireless coverage range and enhanced service quality compared to conventional communication systems. A method representative of aspects of the present application includes receiving, by an apparatus connected in a first sub-system, from a radio access network, configuration information for performing a channel condition measurement on a second sub-system, reporting, by the apparatus to the radio access network, channel condition measurement of a downlink reference signal received from the second sub-system, transmitting, by the apparatus, a wireless transmission to the second sub-system responsive to the channel condition measurement meeting a predefined condition.

    SYSTEMS AND METHODS FOR USER EQUIPMENT COOPERATION

    公开(公告)号:US20240022993A1

    公开(公告)日:2024-01-18

    申请号:US18475327

    申请日:2023-09-27

    CPC classification number: H04W40/22 H04L45/74

    Abstract: User equipment (UE) cooperation could improve latency, reliability, throughput, coverage and capacity in wireless communication systems. UE cooperation could include a group of UEs helping each other with transmissions through packet forwarding. Methods are provided that include receiving, by a UE in a predefined UE group, a plurality of packets. The plurality of packets includes a first packet that is scrambled using a UE specific identifier, and a second packet that is scrambled using a UE group specific identifier. The methods further include forwarding, by the UE, the plurality of packets.

    System and method for hybrid-arq
    9.
    发明授权

    公开(公告)号:US11876536B2

    公开(公告)日:2024-01-16

    申请号:US17868058

    申请日:2022-07-19

    Abstract: Systems and methods are disclosed for providing H-ARQ transmissions in respect of a set of horizontal code blocks are combined in a code. Retransmissions contain vertical parity check blocks which are determined from verticals from the set of horizontal code blocks. Once all the vertical parity check blocks have been transmitted, a new set may be determined after performing interleaving upon either the content of the horizontal code blocks, in the case of non-systematic horizontal code blocks, or over the content of encoder input bits in the place of systematic horizontal code blocks. The interleaving may be bitwise or bit subset-wise. The retransmissions do not contain any of the original bits. In the decoder, soft decisions are produced, and nothing needs to be discarded; decoding will typically improve with each retransmission.

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