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    • 4. 发明授权
    • Multi-carrier modulation with hierarchical resource allocation
    • 具有分层资源分配的多载波调制
    • US09036573B2
    • 2015-05-19
    • US13416690
    • 2012-03-09
    • Xiaodong LiTitus Lo
    • Xiaodong LiTitus Lo
    • H04W4/00H04W16/32H04W16/24
    • H04W72/042H04L1/00H04L1/1825H04L5/0046H04L5/0048H04L5/0053H04L5/0091H04L5/1469H04L27/2601H04W16/24H04W16/32H04W72/0453
    • Methods and systems for communicating in a multi-carrier communication system are disclosed. Radio resources may be organized in at least three hierarchical levels. The hierarchical levels may comprise macroblocks, blocks, and radio resource elements. A macroblock may contain a plurality of blocks and a block may contain a plurality of radio resource elements. The radio resource elements may further correspond to subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol. An index in a control message may specify a modulation and/or coding scheme (MCS) pattern indicting a MCS for each block within a macroblock. In an embodiment, fewer bits are used by the index to specify a MCS pattern that is used statistically more frequently, and more bits are used by the index to specify a MCS pattern that is used statistically less frequently. Signals may be transmitted over the plurality of macroblocks.
    • 公开了在多载波通信系统中进行通信的方法和系统。 无线电资源可以至少在三个层次上组织。 层级可以包括宏块,块和无线电资源元素。 宏块可以包含多个块,并且块可以包含多个无线电资源元素。 无线电资源元素还可以对应于正交频分复用(OFDM)符号中的子载波。 控制消息中的索引可以指定对宏块内的每个块指示MCS的调制和/或编码方案(MCS)模式。 在一个实施例中,索引使用较少的比特来指定统计上更频繁地使用的MCS模式,并且索引使用更多的比特来指定统计学上较少使用的MCS模式。 信号可以在多个宏块上传输。
    • 9. 发明授权
    • Methods and apparatus for multi-carrier communications with efficient control signaling
    • 用于具有高效控制信令的多载波通信的方法和装置
    • US08565181B2
    • 2013-10-22
    • US13414622
    • 2012-03-07
    • Xiaodong LiTitus Lo
    • Xiaodong LiTitus Lo
    • H04W4/00H04J11/00H04L1/04
    • H04L27/2646H04B7/0408H04L5/0048H04L5/0053H04L5/006H04L5/0073H04L5/1469H04L27/2613H04L27/2662
    • A first uplink signal is transmitted by a mobile station to a base station on a first set of subcarriers in a first OFDM symbol. The first set of subcarriers is modulated with a first signal sequence known to both the mobile station and the base station. A second uplink signal is transmitted by the mobile station to the base station on a second set of subcarriers in a second OFDM symbol. The second set of subcarriers is modulated with the first signal sequence or a transform of the first signal sequence. The second set of subcarriers is modulated with a second signal sequence containing attribute information on a third set of subcarriers of a downlink signal received by the mobile station over a downlink channel. The correspondence between the subcarriers in the third and second set is known to the mobile station and the base station.
    • 第一上行链路信号由移动台在第一OFDM符号中的第一组子载波上传送到基站。 第一组子载波由移动台和基站都已知的第一信号序列进行调制。 第二上行链路信号由移动台在第二OFDM符号中的第二组子载波上传送到基站。 第二组副载波用第一信号序列或第一信号序列的变换进行调制。 第二组子载波被第二信号序列调制,该第二信号序列包含由移动台通过下行链路信道接收的下行链路信号的第三组子载波上的属性信息。 第三组和第二组中的子载波之间的对应关系对于移动台和基站是已知的。