METHOD AND APPARATUS FOR CSI MEASUREMENT CONFIGURATION AND REPORTING ON UNLICENSED SPECTRUM

    公开(公告)号:EP3595353A1

    公开(公告)日:2020-01-15

    申请号:EP19195173.0

    申请日:2016-01-29

    IPC分类号: H04W24/10 H04W74/08 H04W16/14

    摘要: A user equipment, UE, in a wireless communication system. The UE comprises a transceiver and at least one processor coupled to the transceiver and configured to receive reference signals within a discovery signals measurement timing configuration, DMTC, period, from an eNodeB, eNB, operating in a cell over an unlicensed spectrum band; and transmit, to the eNB, a channel state information, CSI, measurement report obtained based on the reference signals, wherein the reference signals are transmitted based on a channel sensing on the unlicensed spectrum band, wherein each of the reference signals comprises at least one of a cell-specific reference signal, CRS, or a CSI-RS, wherein the reference signals are received at a first detected occasion in a subframe containing a primary synchronization signal, PSS, a secondary synchronization signal, SSS, and a CRS.

    Methods and apparatus for downlink PDSCH power setting

    公开(公告)号:EP2077632B1

    公开(公告)日:2018-09-26

    申请号:EP09150163.5

    申请日:2009-01-07

    IPC分类号: H04W52/32 H04W52/14

    摘要: Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, · RS , and the plurality of T2P calculation methods is established. A user-specific T2P ratio P B , k / P RS for certain OFDM symbols, a RS overhead ratio · RS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio · RS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio P B , k / P RS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio P B,k / P RS , and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

    Channel state information for adaptively configured tdd communication systems
    6.
    发明公开
    Channel state information for adaptively configured tdd communication systems 审中-公开
    用于自适应地配置TDD通信系统的信道状态信息

    公开(公告)号:EP2779513A2

    公开(公告)日:2014-09-17

    申请号:EP14159530.6

    申请日:2014-03-13

    IPC分类号: H04L5/00

    摘要: Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling the base station to configure a UE with resources for obtaining channel and interference measurements in two sets of Transmission Time Intervals (TTIs) and a process for the UE to obtain a Channel State Information (CSI) from the channel and interference measurements in the two sets of TTIs are provided.

    Systems and methods for bundling resource blocks in a wireless communication system
    7.
    发明公开
    Systems and methods for bundling resource blocks in a wireless communication system 有权
    在无线通信系统中的资源块的捆绑系统和方法

    公开(公告)号:EP2775653A1

    公开(公告)日:2014-09-10

    申请号:EP14171578.9

    申请日:2011-04-14

    IPC分类号: H04L5/00 H04L25/03

    摘要: A method and system for communication is disclosed. Allocating resource based on a resource block group determined dependent on a system bandwidth.
    Applying a same precoder to all physical resource block within a precoding subset dependent on the system bandwidth. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 1, if the system bandwidth is within 10 physical resource blocks. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 2 if the system bandwidth is between 11 and 26. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 3 if the system bandwidth is between 27 and 63.

    摘要翻译: 一种用于通信的方法和系统游离缺失盘。 分配基于开采依赖于系统带宽的资源块组确定性资源。 应用相同的预编码器的所有物理资源块的预编码子集取决于系统带宽内。 一些预编码子集和用于资源分配的资源块组内的多个资源块的内物理资源块的是1,如果系统带宽是内10个物理资源块。 预编码子集内的多个物理资源块的和用于资源分配的资源块组内的多个资源块的是2,如果在系统带宽为11和26之间的预编码子集内的多个物理资源块和若干的 用于资源分配的资源块组内的资源块是3,如果在系统带宽为27和第63个之间

    Method and system for mapping uplink control information
    8.
    发明公开
    Method and system for mapping uplink control information 有权
    Verfahren und System zur Abbildung von Uplink-Steuerinformationen

    公开(公告)号:EP2378691A3

    公开(公告)日:2014-07-16

    申请号:EP11162372.4

    申请日:2011-04-14

    摘要: A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding scheme (MCS) value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry to receive a multiple-input multiple-output (MIMO) uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. Acknowledgement/negative acknowledgement (ACK/NACK) information and rank indication (RI) information are mapped onto both the first subset of layers and the second subset of layers. Channel quality information (CQI) is only mapped onto either the first subset of layers or the second subset of layers.

    摘要翻译: 提供基站。 基站包括发送路径电路,用于向订户站发送上行链路授权,所述上行链路许可指示用于第一码字传输的第一调制和编码方案(MCS)值以及用于第二码字传输的第二MCS值。 基站还包括接收路径电路,用于从用户站接收多输入多输出(MIMO)上行链路子帧,MIMO上行链路子帧具有用于第一码字传输的层的第一子集,以及层的第二子集 用于第二码字传输。 确认/否定确认(ACK / NACK)信息和秩指示(RI)信息被映射到层的第一子集和层的第二子集上。 信道质量信息(CQI)仅被映射到层的第一子集或层的第二子集。

    Transmit methods with delay diversity and space-frequency diversity
    9.
    发明公开
    Transmit methods with delay diversity and space-frequency diversity 审中-公开
    ÜbertragungsverfahrenmitVerzögerungsdiversitätundRaumfrequenzdiversität

    公开(公告)号:EP2571215A2

    公开(公告)日:2013-03-20

    申请号:EP12008315.9

    申请日:2008-06-25

    IPC分类号: H04L25/03 H04L5/00

    摘要: In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.

    摘要翻译: 在本发明中,提出了包含小延迟CDD码字循环,小型和大型延迟CDD的不同重新传输之间的码字循环的若干开环解决方案。 此外,提出了用于SFBC + FSTD方案的开环码字循环方法以及其对基于SFBC + FSTD的HARQ的扩展。 在一种方法中,多个信息比特被编码,加扰和调制以产生多个调制符号。 多个调制符号被映射到传输资源的至少一个传输层中的子载波上。 然后通过使用用于循环延迟分集的矩阵和来自某个码本的一组码字来生成多个预编码符号来对调制符号进行预编码。 每个一定数量的副载波循环码字。 最后,通过多个发送天线发送预编码符号。