CN102859916B - 将用于使用无线网络传送的信号格式化的技术 - Google Patents
将用于使用无线网络传送的信号格式化的技术 Download PDFInfo
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Abstract
描述了用于形成用于传送到接收器的信号的技术。两个传送器能形成具有不同的物理上行链路控制信道(PUCCH)解调参考信号(DMRS)模式的资源块,所述模式在时间和/或频率上是彼此正交的。所述传送器能同时传送相同的但带有不同DMRS模式的资源块。如果接收器被安装有两个天线,则所述接收器能利用MIMO接收器以区分来自两个传送器的资源块。
Description
技术领域
本文中公开的主题一般涉及移动装置用于将用于传送的信号格式化的的技术。
背景技术
长期演进-高级(LTE-A)提议将最大下行链路带宽增加到100MHz以满足1Gbps峰数据率目标。载波聚集是被引入以增加最大下行链路带宽的一个技术。例如,在一些情况中,一个LTE-A用户元件(user element,UE)能够并发地接收五个20MHz载波。另一方面,上行链路(UL)反馈信息也几乎线性地增加以使得五个并发接收的下行链路(DL)载波能够适当地工作。例如,UL反馈能够包括信道质量指示符(CQI)、预编码矩阵指示符(PMI)、秩指示符(RI)、HARQ ACK/NACK和上行链路调度请求比特。在3GPP TR 36.814 v9.0.0(2010)中已提议的是,使用一个物理上行链路控制信道(PUCCH)在相同的上行链路分量载波(UL CC)上发送对多个DL CC的反馈。
3GPP LTE Rel-8(2008)提议对PUCCH的两个信道格式:PUCCH格式1/1a/1b和PUCCH格式2/2a/2b。当更高级的特征在LET-A Rel-10或未来发行版中被引入(诸如协调多点(CoMP),在3GPP TR 36.814 v9.0.0(2010)中被描述)时,对反馈信道的更高比特率可能被需要。已广泛承认的是,当载波聚集被使用时,PUCCH的最大有效负载大小被增加以提供可接受的反馈。
附图说明
本发明的实施例在附图中通过示例而非通过限制被示出,以及其中相似的引用数字是指类似的元件。
图1描绘使用无线网络所连接的装置的一示例。
图2描绘PUCCH格式1/1a/1b的信道结构的一示例,其中,使用资源块来传送两个隙(slot)。
图3描绘PUCCH格式2/2a/2b的信道结构的一示例,其中,使用资源块来传送两个隙。
图4示出PUCCH格式3。
图5和6描绘相应的PUCCH格式4和4a。
图7描绘使用不同DMRS模式(pattern)对接收器进行传送的移动装置的一示例。
图8提供依照一实施例的系统的一示例。
图9描绘形成用于传送到接收器的信号的一示例过程。
具体实施方式
遍及此说明书对“一个实施例”或“一实施例”的引用是指连同所述实施例描述的特定的特征、结构或特性被包括在本发明的至少一个实施例中。因此,遍及说明书各个地方中短语“在一个实施例中”或“一实施例”的出现不一定都指相同实施例。此外,特定的特征、结构或特性可在一个或更多实施例中被组合。
本发明的实施例可在多种应用中被使用。本发明的一些实施例可与各种装置和系统一道来使用,例如,传送器、接收器、收发器、传送器-接收器、无线通信站、无线通信装置、无线接入点(AP)、调制解调器、无线调制解调器、个人计算机(PC)、台式计算机、移动计算机、膝上型计算机、笔记本计算机、平板计算机、服务器计算机、手持式计算机、手持式装置、个人数字助理(PDA)装置、手持式PDA装置、网络、无线网络、局域网(LAN)、无线LAN(WLAN)、城域网(MAN)、无线MAN(WMAN)、广域网(WAN)、无线WAN(WWAN)、依照现有的IEEE 802.11、802.11a、802.11b、802.11e、802.11g、802.11h、802.11i、802.11n、802.16、802.16d、802.16e、802.16m、3GPP标准、3GPP LTE高级的36211发行版10的物理层描述、和/或上面标准的长期演进(LTE)和/或派生物和/或未来版本来操作的装置和/或网络、个域网(PAN)、无线PAN(WPAN)、作为上面WLAN和/或PAN和/或WPAN网络的局部(part)的单元和/或装置、单向和/或双向无线电通信系统、蜂窝无线电电话通信系统、蜂窝电话、无线电话、个人通信系统(PCS)装置、结合无线通信装置的PDA装置、多输入多输出(MIMO)收发器或装置、单输入多输出(SIMO)收发器或装置、多输入单输出(MISO)收发器或装置、多接收器链(MRC)收发器或装置、具有“智能天线”技术或多天线技术的收发器或装置、或诸如此类。
本发明的一些实施例可与一个或更多类型的无线通信信号和/或系统一道来使用,例如,射频(RF)、红外线(IR)、频分复用(FDM)、正交FDM(OFDM)、正交频分多址(OFDMA)、时分复用(TDM)、时分多址(TDMA)、扩展的TDMA(E-TDMA)、通用分组无线电服务(GPRS)、扩展的GPRS、码分多址(CDMA)、宽带CDMA(WCDMA)、CDMA 2000、多载波调制(MDM)、离散多音(DMT)、蓝牙(RTM)、ZigBee(TM)、或诸如此类。本发明的实施例可在各种其它设备、装置、系统和/或网络中被使用。
一些实施例为一个或更多移动装置提供将用于传送的信号格式化的方式。信号能够用于传送反馈。一个信号格式提供将数据乘以一个或更多正交码以提供编码的数据符号,以及调度所得到的编码的数据符号以用于使用多个副载波频率和多个时隙的传送。正交码能够在时或频域中与一个或更多其它时或频隙正交。因此,正交码的使用将编码的数据比特之间的干扰最小化。另一信号格式提供调度没有编码的数据以用于使用多个副载波频率和多个时隙的传送。本文中描述的信号格式能够包括解调参考信号(DMRS),该解调参考信号被调度以用于使用多个副载波频率和多个时隙的传送。DMRS格式能够是频和时域正交码的任一项。因此,从多个移动传送器到基站接收器的同时的上行链路反馈的量能够被增加。
各种实施例给PUCCH格式提供与PUCCH格式1和2的那些有效负载大小相比较潜在更大的有效负载大小,以及提供与PUCCH用于反馈的下行链路分量载波(DL-CC)的数量潜在有关的编码率。各种实施例的设计能够基于数据区中的DFT-S-OFDM。DFT-S-OFDM在3G LTE中在36.211 v10的5.4.2a节被描述,其仍未被定案。
图1描绘使用无线网络所连接的装置的一示例。所述网络能够与任何多种(any variety)IEEE 802.16或3GPP LTE以及其变化和修订相容(compliant)。在下游或下行链路情况中,上面一般命名的传送器102和/或202可以被可互换地称为基站(BS)或增强的节点B(eNB)或接入点(AP)。在该下行链路情况中,上面的接收器104和/或204可以被可互换地称为移动台(MS)或订户站(SS)或用户设备(UE)或站(STA)(在本文中系统级)。另外,术语BS、eNB和AP可以在概念上被互换,这取决于哪个无线协议正被使用,因此,本文中对BS的引用也可以被视为对eNB或AP的任一个的引用。类似的是,本文中对MS或SS的引用也可以视为对UE或STA的任一个的引用。
图2描绘PUCCH格式1/1a/1b的信道结构的一示例,其中使用资源块来传送两个隙。PUCCH格式1/1a/1b例如在3GPP TS 36.211 v8.3.0“Physical Channels and Modulation ”(2008年5月)中被描述。PUCCH格式1/1a/1b使用频和时域上的扩展(spreading)以传达(convey)数据的1或2个比特。使用BPSK或QPSK调制,信息的所述1或2个比特能被调制到一个数据符号d(0)中。隙1能传达数据符号d(0)以及(虽然未被描绘)隙2能传达相同的数据符号符号d(0)。
对于PUCCH格式1/1a/1b,使用长度12正交码ri,一个数据符号d(0)在频域中被第一次扩展,其中,ri=[ri(0), ri(1), ri(2), ri(3), ri(4), ri(5), ri(6), ri(7), ri(8), ri(9), ri(10)和ri(11)]。扩展能包括将相同数据符号乘以不同r值以及将乘积放置在不同副载波中。总的来说,能够有定义的12个正交序列,其中, 。不同下标i值中的r值能够是正交的,即,非干扰的。注意,为简单起见,下标i在图中未被示出。使用长度4时域正交覆盖(orthogonal cover)Wj,12个扩展的符号的每个扩展的符号能够被进一步扩展,其中,。扩展能够包括将相同数据符号乘以不同W值以及将乘积放置在不同OFDM符号中。总的来说,能够有定义的4个正交序列,其中,。每个(i,j)值能指的是独特的UE。注意,为了简单起见,下标j在图中未被示出。
在隙1中,数据符号d(0)乘以序列ri的每个值,以及也乘以正交覆盖Wj的每个值。每个相乘的乘积是调制的数据符号。每个调制的数据符号被调度以用于不同频和时隙组合中的传送。类似的是,隙2能包括相同的数据符号d(0)或不同的数据值。用于隙2的数据符号能够乘以序列ri的每个值,以及也乘以正交覆盖Wj的每个值。每个相乘的乘积是调制的数据符号。每个调制的数据符号被调度以用于不同频和时隙中的传送。
对于PUCCH格式1/1a/1b,解调参考信号(DMRS)值包括时间正交码和频率正交码的相乘。在DMRS部分(portion)中,值v(0)-v(11)表示12符号频域正交码以及值Q(0)-Q(2)表示3符号时域正交码。用于生成DMRS部分的规程(procedure)能够类似于用于生成数据部分的规程,除了三个正交覆盖符号被使用以及没有数据符号被扩展之外。因此,数据部分中相同资源块的最多达36个UE的同时传送能够发生,以及DMRS部分中最多36个UE的同时传送能够发生。
如果二进制相移键控(BPSK)被用于数据符号,则使用PUCCH格式1a能够携带1个比特。如果四相相移键控(QPSK)被用于数据符号,则使用PUCCH格式1b能够携带2个比特。PUCCH格式1能将开-关键控用于eNB以检测信号(例如,资源块)是否存在。
图3描绘PUCCH格式2/2a/2b的信道结构的一示例,其中,使用资源块来传送两个隙。PUCCH格式2/2a/2b例如在3GPP TS 36.211 v8.3.0“Physical Channels and Modulation ”(2008年5月)中被描述。对于PUCCH格式2/2a/2b,不是形成和传送时域中的正交覆盖,而是使用较早描述的频率正交码ri,在频域中扩展数据符号。在一些情况中,5个数据符号(d(0)到d(4)或d(5)到d(9))能够在每个隙中被发送。数据值d(0)到d(9)乘以正交覆盖序列ri的每个值以及被指派给不同时间和频率位(location)。
对于PUCCH格式2,当QPSK被用于调制十个数据符号d(0)到d(9)时,编码的比特的全部数量是20。格式2a和2b在图2中未被示出。在该情况中,PUCCH格式2a被使用,使用两个DMRS OFDM符号的相位偏移,另外的比特将被携带。相位偏移能够被用于一个BPSK符号。当PUCCH格式2b被使用时,使用所述偏移来调制一个QPSK以携带另外的2个比特。在一些情况中,最多12个UE能同时地传送相同格式2/2a/2b资源块。
对于PUCCH格式2/2a/2b,DMRS值是频率正交码ri以及未使用为DMRS分配的频和时隙来传送。相反,在为数据分配的时隙和载波期间,DMRS值被分配。
格式1/1a/1b和2/2a/2b均使用时域复用(TDM)结构,其中,数据和解调参考信号(DMRS)在时域中被复用。
依照一实施例,图4示出用于使用数据的时域扩展的PUCCH格式。在本文中,图4的PUCCH格式被称为PUCCH格式3。在一些情况中,与关于图3描述的PUCCH格式2所能携带的相比较,PUCCH格式3能携带更多数据符号。PUCCH格式3能使用来自关于图2描述的PUCCH格式1/1a/1b的数据映射和DMRS方案。在一些情况中,PUCCH格式3能传达24个数据符号d(0)到d(23)。使用隙1,第一12个数据符号能被传达,以及使用隙2,第二12个数据符号能被传达。
在第一隙(隙1)中,数据符号d(0)到d(11)的每个首先乘以5符号长度正交码Wi(其中 ),以及在时域上被分布。例如,数据比特能乘以该5个符号的每个符号,以及在时域上被扩展。对相同数据符号的五个扩展的符号能映射到五个OFDM数据符号的相同副载波。正交码能够是5符号长度,但其它长度能被使用,以及所述码能够彼此完全正交。符号能够是复数。因此,在一些实施例中,五个UE能同时地传送相同的资源块。
当所有码正被不同或相同的UE使用时,如果性能是不可接受的,则系统可使用这5个正交码的子集。例如,在一些情况中,码索引(index)0、2、4能够被使用。码索引的其它子集能够被使用。
使用第二隙(隙2),类似于第一12个数据符号,第二12个数据符号的每个能够被传达。与PUCCH格式2/2a/2b相比较,较少的UE能够同时地传送相同资源块(对格式2/2a/2b的十二个UE相对于对格式3的五个UE)但是每个UE能发送更多数据符号(例如,对格式3的二十四个而不是对格式2/2a/2b的十个)。
PUCCH格式3a能够被定义以使用来自PUCCH格式2/2a/2b的DMRS和数据映射规则。格式3a能具有格式1的DMRS位置(图2),其中,DMRS模式在相邻的时隙中的DMRS段中被定位。
图5和6描绘相应的PUCCH格式4和4a。对于PUCCH格式4/4a的第一数据正交频分复用(OFDM)符号,12个数据符号能够被离散傅立叶变换(DFT)扩展以生成数据符号d(0)到d(11)。数据符号能被指派到不同的频率和不同的时隙。类似规程应用于数据OFDM符号的其余部分。例如,每个OFDM符号携带的12个数据符号能被DFT预编码到12个符号中以及被映射到每个副载波。因此,对于5个OFDM符号,60个数据符号能够被携带。DFT扩展能够保持波形的低的峰对平均功率比率(PAPR)属性。
格式4/4a和PUCCH1/2/3之间的一个不同是,时域和频域扩展均不被用于数据符号。换句话说,数据符号不乘以频域中正交的值或乘以时域正交覆盖。这能准许更多数据符号的通过UE的同时传送。例如,使用单个副载波频率和时隙,能够传送数据符号。当每个数据符号被QPSK调制时,在每个d(0)到d(11)中能够有24个比特。PUCCH格式4/4a的第二隙(隙2)能够携带第一隙的相同数据符号或其它数据符号。如果QPSK被使用,则PUCCH格式4a能够携带全部96个编码的比特(如果两个隙正携带相同的48个数据符号)。
对PUCCH格式4a的不同编码率能被用于允许携带不同数量的信息比特。对PUCCH格式4的编码率能够是{1/6、1/4、1/3、1/2}以及对应数量的信息比特能够是{16、24、32、48}。编码率能够表示信息比特的数量除以资源块中比特的总数。不同编码率能被用于不同数量的下行链路CC,其被PUCCH用于反馈。如果两个隙正携带相同的60个数据符号,则PUCCH格式4能携带120个编码的比特。编码率能被定义成{1/6、1/4、1/3、1/2}以允许资源块携带{20、30、40、60}个信息比特。
除了对PUCCH格式4/4a的更大有效负载大小以外,PUCCH格式4/4a中的多用户分离也不同于PUCCH格式1/1a/1b和PUCCH格式2/2a/2b的多用户分离。空间域复用(SDM)能被用于PUCCH格式4/4a,如图5和6中所示。SDM能指一种格式,其中每个UE传送不具有时或频域中的正交性的资源块,但是所述资源块具有在时或频域中正交的DMRS信号。两个用户能使用在时间/频率上彼此正交的不同的PUCCH DMRS模式,但是对两个UE的PUCCH能被映射到相同的RB,其被完全地重叠。相反,PUCCH格式1/1a/1b和PUCCH格式2/2a/2b中的用户元件(UE)复用能使用码分复用(CDM)。
如果eNB被安装有两个接收天线,那么eNB能利用多输入多输出通信(MIMO)接收器,诸如最小均方误差(MMSE)或最大似然检测(MLD),以分离对两个UE的数据部分。如果eNB被安装有多于两个接收天线,则允许所述eNB从多于两个用户设备(UE)同时接收信号。例如,当来自两个UE的资源块被同时地传送以及每个UE具有一个传送天线和所述eNB具有两个接收天线时,所述eNB将首先将来自用户元件UE1和UE2的信道估计为相应的H1和H2,其中,H1和H2的每个是2*1矩阵。因为对这两个UE(UE1和UE2)的DMRS模式是正交的,所以信道估计能够是相当准确的。
在两个信道被估计后,在eNB接收的信号能被描述为,其中d1(0)表示对UE1的第一副载波上的第一数据符号,以及d2(0)表示对UE2的第一副载波上的第一数据符号。操作表示一个矩阵的转置操作。这等同于2*2秩2 MIMO系统。eNB能应用MIMO解码技术(诸如MMSE或MLD)以估计d1(0)和d2(0)。对于eNB确定对UE1和UE2的第二数据符号,eNB确定,以及对其它数据符号确定诸如此类。通过将MIMO解码技术应用在所有副载波上,来自UE的所有数据符号能够被解码。因此,空分复用能潜在地进一步增加来自每个UE的比特率。从而,从UE到eNB的同时的上行链路反馈的量能被增加。
在一些情况中,SDM也能被应用于PUCCH格式3。例如,多个UE能使用相同的正交码Wi但正交的DMRS模式。多个UE的数据能在eNB被解码。eNB接收器将首先使用MIMO接收器以分离UE的数据以及然后将解扩(dispreading)用在分离的数据上以解码每个UE的数据符号。
在一些实施例中,SDM也能被应用于PUCCH格式1和2。类似于将SDM用于PUCCH格式3/3a,当将SDM用于PUCCH格式1/2时,多个UE使用对数据的相同的扩展码但对DMRS的正交的扩展码。当eNB接收多个UE的数据时,eNB将通过正交的DMRS模式来首先估计多个UE的信道。接着,使用MIMO接收器,eNB将解码每个UE的扩展的数据符号。接着,eNB将解码每个UE的扩展的数据符号以及执行每个用户的扩展的数据符号的解扩以解码每个UE的数据符号。
图7描绘使用不同的DMRS模式对接收器进行传送的移动装置的一示例。两个用户能使用在时间和/或频率上彼此正交的不同的PUCCH DMRS模式,但对两个UE的PUCCH能同时传送相同的资源块(RB)。如果eNB被安装有两个天线,则所述eNB能利用MIMO接收器(诸如MMSE或MLD)以区分来自两个传送器的资源块。如果eNB被安装有多于两个接收天线,则eNB能区分来自多于两个传送器的资源块。
图8提供依照一实施例的系统的一示例。计算机系统600可包括主机系统602和显示器622。计算机系统600能在手持式个人计算机、移动电话、机顶盒或任何计算装置中被实现。任何类型的用户接口是可用的,诸如小键盘、鼠标、触摸屏、和/或手势(gesture)或运动识别。主机系统602可包括芯片组605、处理器610、主机存储器612、存储装置614、图形子系统615和无线电620。芯片组605可提供在处理器610、主机存储器612、存储装置614、图形子系统615和无线电620之间的相互通信。例如,芯片组605可包括能够提供与存储装置614的相互通信的存储装置适配器(未描绘)。
处理器610可被实现为复杂指令集计算机(CISC)或精简指令集计算机(RISC)处理器、x86指令集可兼容的处理器、多核、或任何其它微处理器或中央处理单元。在各种实施例中,处理器610能被配置有执行本文中描述的技术的指令。
主机存储器612可被实现为易失存储器装置,诸如但不限于随机存取存储器(RAM)、动态随机存取存储器(DRAM)、或静态RAM(SRAM)。存储装置614可被实现为非易失存储装置,诸如但不限于磁盘驱动器(drive)、光盘驱动器、磁带驱动器、内部存储装置、附连的存储装置、闪速存储器、电池支持的SDRAM(同步DRAM)、和/或网络可存取的存储装置。
图形子系统615可执行诸如静止或视频的图像的处理以用于显示。模拟或数字接口可被用于通信地耦合图形子系统615和显示器622。例如,接口可以是高清晰度多媒体接口、显示器端口(DisplayPort)、无线HDMI、和/或无线HD相容技术的任一项。图形子系统615能够被集成到处理器610或芯片组605中。图形子系统615能够是通信地耦合到芯片组605的独立卡。
无线电620可包括依照可应用的无线标准(诸如但不限于IEEE 802.11和IEEE 802.16的任何版本)能够传送和接收信号的一个或更多无线电。例如,无线电620可包括至少物理层接口和媒体接入控制器。无线电620能包括基带处理器以执行依照描述的技术形成用于传送的资源块的技术。
图9描绘形成用于传送到接收器的信号的一示例过程。块902包括多个用户元件形成带有相同格式但正交的解调参考信号的资源块。例如,用户元件能同时传送具有关于图4-6描述的格式但带有正交的解调参考信号的资源块。
块904包括多个用户元件同时传送带有相同格式但正交的解调参考信号的资源块。
块906包括具有两个或更多天线的接收器使用MIMO接收器以分离来自同时传送的资源块的数据部分。基于本文中描述的技术,所述接收器能估计信道以及然后确定来自每个用户元件的数据符号。
本发明的实施例可被实现为以下任一项或组合:使用母板所互连的一个或更多微芯片或集成电路、硬连线的逻辑、存储器装置存储的以及微处理器运行的软件、固件、专用集成电路(ASIC)、和/或现场可编程门阵列(FPGA)。术语“逻辑”可包括(作为示例)软件或硬件和/或软件和硬件的组合。
本发明的实施例可被提供例如为计算机程序产品,所述计算机程序产品可包括一个或更多机器可读的媒体,所述媒体具有其上存储的机器可运行的指令,当被一个或更多机器(诸如,计算机、计算机的网络、或其它电子装置)运行时,所述指令可导致所述一个或更多机器实行(carry out)依照本发明实施例的操作。机器可读的媒体可包括但不限于软盘、光盘、CD-ROM(紧致盘-只读存储器)、以及磁光盘、ROM(只读存储器)、RAM(随机存取存储器)、EPROM(可擦除可编程只读存储器)、EEPROM(电可擦除可编程只读存储器)、磁或光卡、闪速存储器、或适合于存储机器可运行的指令的其它类型的媒体/机器可读的媒体。
附图和前面的描述给出本发明的示例。虽然被描绘为多个相异的功能项目,但是本领域的技术人员将意识到的是,此类元件的一个或更多可很好地被组合到单个功能元件中。备选的是,某些元件可被分成多个功能元件。来自一个实施例的元件可被添加到另一实施例。例如,本文中描述的过程的顺序可被改变以及不限于本文中描述的方式。而且,任何流程图的动作不需要以示出的顺序来实现;进行所有动作也不一定需要被执行。另外,不依赖于其它动作的那些动作可与所述其它动作一起被并行执行。然而,本发明的范围决不由这些具体的示例来限制。无论是否在说明书中被明确地给出,许多变化(诸如材料的使用、尺寸和结构方面的不同)是可能的。本发明的范围与随附权利要求所给出的至少一样宽。
Claims (21)
1.一种计算机实现的方法,使用无线移动计算装置来执行,包括:
请求形成信号,所述信号包括至少两个不同频率上的副载波,其中,第一副载波的第一频率包括至少两个不同的时隙,以及其中,第二副载波的第二频率包括至少两个不同的时隙;
请求第一数据部分到所述第一副载波的时隙的一个时隙的指派;
请求第二数据部分到所述第一副载波的时隙的另一时隙的指派;以及
请求所述信号的资源块中的解调参考信号(DMRS)模式的指派,所述DMRS模式在频率和时间上相对于来自另一个装置的另一个信号的资源块中的DMRS模式正交,所述信号的所述资源块在频率和时间上与所述另一个信号的所述资源块重叠。
2.如权利要求1所述的方法,其中
所述第一数据部分包括乘以在频域中正交的值的数据符号,以及
所述第二数据部分包括乘以在频域中正交的值的数据符号。
3.如权利要求1所述的方法,其中
所述第一数据部分包括乘以时域正交覆盖的数据符号,以及
所述第二数据部分包括乘以时域正交覆盖的数据符号。
4.如权利要求1所述的方法,其中
所述第一数据部分包括离散傅立叶变换预编码的数据符号,以及
所述第二数据部分包括第二离散傅立叶变换预编码的数据符号。
5.如权利要求1所述的方法,其中,所述DMRS模式包括至少一个频率正交码。
6.如权利要求1所述的方法,其中,所述DMRS模式包括不在相邻时隙中的多个频率正交码。
7.如权利要求1所述的方法,其中,所述DMRS模式包括时间正交值和频率正交值的乘积,以及所述DMRS模式在相邻的时隙中被分配。
8.一种计算机实现的方法,使用无线计算装置来执行,包括:
从相应的第一和第二用户元件接收第一和第二资源块,所述第一和第二资源块各自包括正交的解调参考信号(DMRS)模式,所述第一资源块的所述DMRS模式在频率和时间域上与所述第二资源块的所述DMRS模式重叠;
请求用于传送所述第一和第二资源块的信道的估计;以及
请求至少部分基于所述估计来确定来自所述第一和第二资源块的数据值。
9.如权利要求8所述的方法,还包括:
使用多输入多输出通信(MIMO)技术以分离对多个用户元件的数据部分。
10.如权利要求9所述的方法,其中,所述使用MIMO技术包括使用最小均方误差(MMSE)或最大似然检测(MLD)。
11.如权利要求8所述的方法,其中,所述第一和第二资源块包括数据部分,以及所述数据部分的每个数据部分包括以下的一个:乘以在频域中正交的值的数据符号、乘以时域正交覆盖的数据符号、以及离散傅立叶变换预编码的数据符号。
12.如权利要求8所述的方法,其中,所述DMRS模式包括以下的一个:频率正交码、不在相邻的时隙中的频率正交码、以及相邻的时隙中分配的频率正交值和时间正交值的乘积。
13.一种系统,包括:
至少一个天线;
无线电设备,通信地耦合到所述至少一个天线;以及
处理器,配置成:
请求形成信号,所述信号包括至少两个不同频率上的副载波,其中,第一副载波的第一频率包括至少两个不同的时隙,以及其中,第二副载波的第二频率包括至少两个不同的时隙;
请求第一数据部分到所述第一副载波的时隙的一个时隙的指派;
请求第二数据部分到所述第一副载波的时隙的另一时隙的指派;以及
请求所述信号的资源块中的解调参考信号(DMRS)模式的指派,所述DMRS模式在频率和时间上相对于来自另一个装置的另一个信号的资源块中的DMRS模式正交,所述信号的所述资源块在频率和时间上与所述另一个信号的所述资源块重叠。
14.如权利要求13所述的系统,其中
所述第一数据部分包括乘以在频域中正交的值的数据符号,以及
所述第二数据部分包括乘以在频域中正交的值的数据符号。
15.如权利要求13所述的系统,其中
所述第一数据部分包括乘以时域正交覆盖的数据符号,以及
所述第二数据部分包括乘以时域正交覆盖的数据符号。
16.如权利要求13所述的系统,其中
所述第一数据部分包括离散傅立叶变换预编码的数据符号,以及
所述第二数据部分包括第二离散傅立叶变换预编码的数据符号。
17.如权利要求13所述的系统,其中
所述DMRS模式包括以下至少一个:至少一个频率正交码、不在相邻的时隙中的多个频率正交码、或时间正交值和频率正交值的乘积,以及所述DMRS模式在相邻的时隙中被分配。
18.一种系统,包括:
至少两个天线;
无线电设备,通信地耦合到所述至少两个天线;以及
处理器,配置成:
处理第一和第二资源块,所述第一资源块与第一用户元件关联,并且所述第二资源块与第二用户元件关联,所述第一和第二资源块各自包括正交的解调参考信号(DMRS)模式,所述第一资源块的所述DMRS模式在频率和时间域上与所述第二资源块的所述DMRS模式重叠,
请求用于传送所述第一和第二资源块的信道的估计,以及
请求至少部分基于所述估计来确定来自所述第一和第二资源块的数据值。
19.如权利要求18所述的系统,还包括:
多输入多输出通信(MIMO)接收器,用于分离对多个用户元件的数据部分,其中,所述MIMO接收器使用最小均方误差(MMSE)或最大似然检测(MLD)。
20.如权利要求18所述的系统,其中,所述第一和第二资源块包括数据部分,以及所述数据部分的每个数据部分包括以下的一个:乘以在频域中正交的值的数据符号、乘以时域正交覆盖的数据符号、以及离散傅立叶变换预编码的数据符号。
21.如权利要求18所述的系统,其中,所述DMRS模式包括以下的一个:频率正交码、不在相邻的时隙中的频率正交码、以及相邻的时隙中分配的频率正交值和时间正交值的乘积。
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