CN103765802A - 用于lte上行链路参考信号的截短的zadoff-chu序列 - Google Patents
用于lte上行链路参考信号的截短的zadoff-chu序列 Download PDFInfo
- Publication number
- CN103765802A CN103765802A CN201280042294.3A CN201280042294A CN103765802A CN 103765802 A CN103765802 A CN 103765802A CN 201280042294 A CN201280042294 A CN 201280042294A CN 103765802 A CN103765802 A CN 103765802A
- Authority
- CN
- China
- Prior art keywords
- zadoff
- chu sequence
- resource block
- chu
- sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Power Engineering (AREA)
Abstract
本文公开了生成截短的Zadoff-Chu序列的方法。基于最大传送带宽生成大的Zadoff-Chu序列,然后基于实际传送带宽截短序列。Zadoff-Chu序列在需要时循环扩展以保持准正交特性。结果是有增大数量的可用Zadoff-Chu序列用于在无线邻域中的分布,并且干扰的比率得以降低。
Description
相关申请交叉引用
本申请要求具有2011年8月12日提交的美国临时专利申请61/523080的优先权。
技术领域
本申请涉及Zadoff-Chu序列,并且更具体地说,涉及增大参考信号数量的方法。
背景技术
Zadoff-Chu序列是应用到无线电信号以便无线电信号在无线邻域(neighborhood)中通过空中传送时改进无线电信号的属性的数学序列。Zadoff-Chu序列是复数,每个数字具有实部和虚部。正交性是与Zadoff-Chu序列耦合的无线电信号的所需特性之一。此类无线电信号被认为不太可能在无线邻域中造成干扰。
其它特性也使得与Zadoff-Chu序列耦合的无线电信号合乎需要。Zadoff-Chu序列具有良好的自相关属性,并且在时间和频率域中均能够进行搜索。所有Zadoff-Chu点具有1的恒定幅度。
尽管存在这些特性,可用Zadoff-Chu序列的数量限制了可在无线邻域中使用序列的实体的数量。
因此,一直以来需要一种克服现有技术的缺点的使用Zadoff-Chu序列的方法。
附图说明
通过结合附图参照以下详细描述,本文档的上述方面和许多伴随优点得到更好的理解,因而将变得更容易领会,其中,除非另有说明,否则类似的标号在各种视图中表示类似的部分。
图1是根据一些实施例的截短的Zadoff-Chu序列生成方法的简化框图;
图2是根据一些实施例,分成48个资源块的10 MHz信道的简化框图,其中每资源块12个子载波;
图3是根据现有技术,基站再使用Zadoff-Chu序列的无线邻域的简化图;
图4是根据一些实施例,每个扇区使用由图1的方法形成的独特Zadoff-Chu序列的无线邻域的简化图;
图5是根据一些实施例,示出由图1的方法形成的Zadoff-Chu序列的一种布置的简化框图;
图6是根据一些实施例,通过图4的无线邻域的一个蜂窝区域示出Zadoff-Chu序列的可能布置的简化图;
图7是根据一些实施例,示出12个移动装置的资源块分配的简化图,其中,每个装置使用相同Zadoff-Chu序列;
图8是根据一些实施例,示出由图1的方法形成的新截短的Zadoff-Chu序列的所有可能对的互相关的累积分布函数的图表;
图9是根据一些实施例,示出在原Zadoff-Chu序列与由图1的方法生成的新截短的Zadoff-Chu序列之间均方误差性能比较的图表;
图10是根据一些实施例,示出在原序列与由图1的方法生成的新截短的Zadoff-Chu序列之间信道估计误差性能比较的图表,在57个扇区内带有可变带宽指派;
图11是根据一些实施例,示出用于原Zadoff-Chu序列和由图1的方法生成的新截短的Zadoff-Chu序列的峰值对平均功率比互补累积分布函数的图表;
图12是根据一些实施例,使用图1的Zadoff-Chu序列生成方法的基站的框图;
图13是根据一些实施例,示出由图1的Zadoff-Chu序列生成方法执行的操作的流程图;以及
图14是根据一些实施例,示出在基站与用户设备之间执行的操作的流程图。
具体实施方式
根据本文中的实施例,公开了生成截短的Zadoff-Chu序列的方法。方法修改用于生成截短的Zadoff-Chu序列的现有方法,结果是增大数量的可用Zadoff-Chu序列用于在无线邻域中的分布。
在下面的详细说明中,参照了通过图示示出可实践本文中所述主题的特定实施例的附图。然而,要理解的是,本领域技术人员在阅读本公开内容时将明白其它实施例。
为简明起见,在描述本文中截短的Zadoff-Chu生成方法中,参照了已知为几个应用采用Zadoff-Chu序列的长期演进或LTE标准(也称第三代合作伙伴项目或3GPP)。然而,要理解的是,截短的Zadoff-Chu生成方法可与其它无线标准一起使用。由于主题的范围由权利要求定义,因此,下面的详细描述不可从限制的意义理解。
此外,本文中结合参考信号由无线移动装置到基站的传送描述Zadoff-Chu序列。然而,本文中所述截短的Zadoff-Chu序列生成方法可用于其它传送,并且因此不应视为限于参考信号应用。
Zadoff-Chu函数是在LTE中用于优化通过无线邻域的信号传送的扩展函数的类型。Zadoff-Chu序列使用以下等式生成:
0 ≤ n ≤ N ZC -1,以及N ZC =序列的长度。在一些实施例中,截短的Zadoff-Chu生成方法100修改在LTE环境中使用的现有Zadoff-Chu序列以增大可供无线邻域中使用的参考信号的数量。
传送参考信号在某种程度上为了估计传送信道。因此,假设信道是10 MHz信道,并且有48个资源块可用于到不同用户的分布。也假设信道由单个用户和单个基站(在LTE术语中称为eNodeB)填充。LTE规范定义用于探测参考信号的以下有效资源块大小:4、8、12、16、20、24、32、36、40和48。因此,单个用户可分配有全部48个资源块,并且能够在那些分配中一次4个资源块向基站传送,总共12次传送。这将是覆盖整个10 MHz频带的一种方式。或者,用户可使用所有48个资源块发送单次传送。或者,用户可使用一次8个资源块,一次12个资源块等发送多次传送。
无线邻域将可能具有多于一个用户,因此,基站将基于其它准则分配48个资源块到用户。实际上,基站可分配4个资源块、8个资源块等到给定用户。此外,基于从用户定期收到的参考信号,基站确定分配48个资源块的哪些资源块到用户。用户可在10 MHz频带内的不同子频带发送参考信号,这是因为最初基站或用户均不知道哪个子频带对用于该用户的传送是最佳的。
参考信号本身是基站已知的信号。用户将参考信号定期传送到基站时,收到的信号不但包括参考信号,而且包括另外的信道特性。从此收到的信号中,基站因此能够进行信道估计。
可用Zadoff-Chu序列的数量等于比在其生成中使用的质数小一。Zadoff-Chu序列生成中使用的质数是小于或等于序列的长度的最大质数。在当前3GPP LTE标准中,最小资源块大小是3个资源块。每个资源块具有12个子载波,因此,最小资源块大小将具有36个子载波。比小于或等于序列的长度的最大质数小1因此为30。因此,根据用于生成Zadoff-Chu序列的规则,30个序列可用于资源块大小3。
图1是根据一些实施例的截短的Zadoff-Chu序列生成方法100的简化框图。与现有技术相比,截短的Zadoff-Chu序列生成方法100通过从更大资源块大小开始,增大可用Zadoff-Chu序列的数量。在一些实施例中,方法100假设48个资源块或576个子载波要用于传送。小于或等于576的最大质数为571。比571小1的是570。因此,根据方法100,可用Zadoff-Chu序列的总数从30增大到570,表示为ZC1 - ZC570。截短的Zadoff-Chu序列生成方法100因此采用大小为48的资源块,并且生成570个Zadoff-Chu序列60。
假设Xi(u)是Zadoff-Chu序列,根序列为u,以及1 ≤ i ≤ 576。在一些实施例中,需要小于48个资源块的大小的资源块(这表征许多传送,即便不是大多数传送)时,也需要更小的Zadoff-Chu序列集。在此情况下,48资源块Zadoff-Chu序列被截短成所需大小。
例如,为生成用于资源块大小为3的Zadoff-Chu序列,Zadoff-Chu序列生成方法100采用具有571个子载波的Zadoff-Chu序列X(u),并且将Zadoff-Chu序列截短成大小为36的序列:Xj(u)、...、Xj+36(u),其中,1 ≤ j ≤ 535(有关j的上限确保36个选择的子载波在Zadoff-Chu序列的571个可用子载波内)。
在一些实施例中,为确保截短的Zadoff-Chu序列良好,保持了以下属性:
在所有序列与循环移位的序列之间的良好互相关(图8)
改进的信道估计性能
低峰值对平均功率比(PAPR)
图2是根据一些实施例,以示意图方式示分成48个资源块22的10 MHz信道26的简化框图。实际上,根据LTE,有指派到10 MHz信道的50个资源块。然而,其中的两个资源块专用于控制信道。因此,为便于此讨论,10 MHz信道具有专用于数据子载波的48个资源块。每个资源块22具有如由向上箭头指示的12个子载波24。因此,10 MHz信道26分配有48 x 12或576个子载波。
LTE规范支持几个不同的信道带宽,更广的带宽具有更大的信道容量。LTE支持1.4 MHz、3 MHz、5 MHz、10 MHz、15 MHz和20 MHz的信道带宽。资源块的数量随信道带宽而变化。在示出截短的Zadoff-Chu序列生成方法100中,使用了10 MHz带宽。然而,本文中所述原理可容易应用到其它信道带宽。
通过方法100(图1)生成570个Zadoff-Chu序列60时,每个序列具有10 MHz信道的571个子载波可用。571个子载波随后循环扩展到576个子载波。由于此扩展原因,结果序列可以说是准正交的而不是完全正交的。分布Zadoff-Chu序列60到用户(在LTE术语中称为用户设备或UE)时,用户的资源块大小将确定用于发送用于该用户的Zadoff-Chu序列的子载波的数量。
图3根据现有技术示出具有57个扇区的无线邻域50。每个六边形表示由服务于三个扇区40A、40B和40C(总称为扇区40)的基站90(未示出)组成的蜂窝区域30。无线邻域50是由19个蜂窝区域30组成的蜂窝网络,每个蜂窝区域包含3个扇区40。每个扇区40包括两部分号码。第一部分指示基站90,并且第二部分指示由基站服务的扇区40。
因此,例如,在无线邻域50的中心是蜂窝区域30,蜂窝区域30带有3个扇区40,表示为“1.0”、“1.1”和“1.2”,指“基站1服务于扇区0、1和2”。其左侧表示为“2.3”、“2.4”和“2.5”的蜂窝区域30指示“基站2服务于扇区3、4和5”。表示为“3.6”、“3.7”和“3.8”的相邻蜂窝区域30指示“基站3服务于扇区6、7和8”,并以此类推,直至所有57个扇区40已被指派到基站。表示为“19.54”、“19.55”和“19.56”的第19个蜂窝区域指示“基站19服务于扇区54、55和56”。
通过根据3GPP/LTE标准可用的有限数量的Zadoff-Chu序列,现有技术无线邻域50的蜂窝区域30通过颜色编码以指示实际上可如何分配Zadoff-Chu序列以便避免干扰。因此,在图3的布置中,基站6、8和11每个具有淡黄色/稍白色蜂窝区域30,并且每个分配有相同的3个Zadoff-Chu序列,其3个扇区的每个扇区1个序列。因此,基站6为其扇区15和基站8为其扇区21分配相同的Zadoff-Chu序列,这也是基站11为其扇区30分配的相同Zadoff-Chu序列(所有3个扇区在图3中具有浅黄色)。基站6为其扇区(更暗的黄色)分配了与为其扇区15不同的Zadoff-Chu序列,但该相同的Zadoff-Chu序列将要由基站8再用于其扇区22和由基站11再用于其扇区31。注意,这只是现有技术中部署的示例。其它示例可具有Zadoff-Chu序列的不同布置,但仍然带有在基序列选择的索引设成0时根据LTE规范只30个Zadoff-Chu序列可用的相同限制。
如图3中颜色编码所示,无线邻域50中的其它基站类似地共享有限的可用Zadoff-Chu序列。通过可用的有限序列,需要再使用Zadoff-Chu序列以服务于所有57个扇区。进行分配是为了尽可能远地扩展共享的Zadoff-Chu序列以便最小化干扰的可能性。不过,干扰仍会发生。
此外,随着无线技术的普及,可能每个基站将需要服务于其3个分配的扇区40的每个扇区内的多个用户。例如,不难想象每个基站同时服务于30个用户,其3个扇区的每个扇区中10个用户。
在一些实施例中,通过生成570个Zadoff-Chu序列60,每个ZC序列具有可用于传送的无线信道的所有子载波,截短的Zadoff-Chu序列生成方法100解决了上述问题。对于比所有48个资源块22(大多数传送)更小的传送,根据需要截短ZC序列60,并且无线邻域50内的基站不必再使用被指派到附近基站的Zadoff- Chu序列60。
图4根据一些实施例示出无线邻域50A。象现有技术的无线邻域50一样(图3),无线邻域50A有19个蜂窝区域30,每个蜂窝区域具有3个扇区40,总共57个扇区。然而,在此增强无线邻域50A中,不存在Zadoff-Chu序列60的再使用。相反,由独特颜色表示的每个蜂窝区域30的每个扇区40指派有其自己的Zadoff-Chu序列集。
图5根据一些实施例示出在57个扇区中570个Zadoff-Chu序列的一种可能指派。在图5中,每个扇区在接收10个Zadoff-Chu序列60。虽然Zadoff-Chu序列60显得“按顺序”分配,扇区0接收前10个Zadoff-Chu序列,扇区1接收第二批10个Zadoff-Chu序列并以此类推,但由于Zadoff-Chu序列的分布可采用许多不同布置,因此,图形只是说明性的。新Zadoff-Chu序列60的分布根据基站之间的协议或者由网络骨干实体确定。在图5中,如在图4中一样,使用独特颜色指示每个扇区。
图6是由基站3、扇区6、7和8服务的一个蜂窝区域30的简化框图。单个UE实体80示出由基站90服务。UE 80可以是移动电话、膝上型计算机、个人数字助理或具有与基站90进行通信的无线能力的任何其它装置。扇区6指派有Zadoff-Chu序列ZC61-ZC70,扇区7指派有Zadoff-Chu序列ZC71–ZC80,以及扇区8指派有Zadoff-Chu序列ZC81-ZC90。同样地,Zadoff-Chu序列可以与所示不同的方式分布。
图7是根据一些实施例的蜂窝区域30的简化图形,其中,蜂窝区域由图4的无线邻域50A的单个扇区(扇区7)组成,该扇区由基站3服务。扇区7包括诸如移动电话、膝上型计算机等表示为UE1-UE12的UE实体80。12个UE的每个UE使用分配到该扇区的10个Zadoff-Chu序列(图6)中表示为ZC71的第一序列,指派到第三扇区30的扇区7(图6)的10个Zadoff-Chu序列60之一。然而,每个UE 80在使用可用于通过10 MHz信道26与基站90进行通信的48个资源块的不同集。
一些UE 80采用四个资源块22,而其它UE使用8和12个资源块。资源块大小由基站90确定,并且基于多个因素,如UE的功率能力、UE与基站的距离及其它因素。在此示例中,UE符合也指定有效资源块大小的LTE规范。
前6个UE 80 UE1-UE6使用所有48个资源块22。资源块的指派也可包括循环移位的Zadoff-Chu序列。在本文中使用时,在时间域中有序列元素的布置的转换(通常是旋转)时,序列被循环移位。因此,例如,假设序列具有元素a、b、c和d,表示为seq {a, b, c, d}。在回到其原布置{a, b, c, d}之前,在循环移位后,序列变成{b, c, d, a},然后是{c, d, a, b},并且最终是{d, a, b, c}。Zadoff-Chu序列的属性之一是在循环移位时,结果序列与原Zadoff-Chu序列正交。其余UE 80 UE7-UE12利用Zadoff-Chu序列的循环移位版本,对于整数N表示为ZCC N。由于Zadoff-Chu序列60具有准正交性的属性,因此,使用资源块集的UE将不干扰使用Zadoff-Chu序列60的循环移位版本的UE。
图7只是基站90在移动装置UE1-UE12之间进行资源块的几种分配之一。此外,资源块指派可以不是连续的(并且资源块内的子载波分配可以是分布式或连续的)。图7只是说明使用单个Zadoff-Chu序列60可由48个资源块服务多少个UE。基站90对资源块22的特定布置不在本公开内容的范围内。
在一些实施例中,图7的12个UE 80能够使用单个Zadoff-Chu序列60 (ZC71)和所示资源块指派。在一些实施例中,由于截短的Zadoff-Chu序列生成方法100生成570个Zadoff-Chu序列60,并且带有在所有序列与循环移位序列之间的良好互相关的所需属性、改进的信道估计性能及低PAPR,因此,在UE之间发生干扰的可能性很低。因此,在服务于无线邻域50A的扇区7的基站90能够成功接收与现有技术部署相比干扰更低得多的参考信号(或其它信号)。
然而,再参照图6,第三基站90和扇区7指派有10个Zadoff-Chu序列ZC71 – ZC80。对于每个生成的序列,根据当前LTE规范,最多有8个循环移位的Zadoff-Chu序列可用。在一些实施例中,循环移位的Zadoff-Chu序列允许从不同天线的同时传送,如在用户设备80和基站90每个具有多个天线时。
因此,除了每扇区可用的10个序列外,可形成每Zadoff-Chu序列的8个循环移位。因此,除10个Zadoff-Chu序列60 ZC71-ZC80可用外,表示为ZCC 71、 ...、ZC C 80的循环移位的Zadoff-Chu序列60的第一集将可用,表示为ZCC2 71、...、ZCC2 80的循环移位的Zadoff-Chu序列60的第二集将可用,表示为ZCC3 71、 ...、ZCC3 80的循环移位的Zadoff-Chu序列60的第三集将可用,并以此类推,最多为8次。因此,对于蜂窝区域30中的单个扇区,最多90个独特的Zadoff-Chu序列60可用,这些独特的序列的每个序列是准正交的。因此,在一些实施例中,占用扇区的UE 80能够使用独特的Zadoff-Chu序列操作而无干扰。
本文中所述原理可应用到不同的信道宽度。例如,LTE规范支持几个不同的信道宽度,其中的任何一个宽度可使用本文中所述截短的Zadoff-Chu序列生成方法100。只要扇区40内的UE 80指派有带有不同资源块22和/或不同循环移位值的Zadoff-Chu序列60,来自UE的参考信号的成功传送便是可能的。
图8是根据一些实施例,绘出使用由截短的Zadoff-Chu序列生成方法100生成的Zadoff-Chu序列60的传送的互相关对累积分布函数的图表210。图8示出在新截短的序列的所有可能对的95%内,互相关低于0.135。这指示方法100生成的截短的序列保持了现有Zadoff-Chu序列的所需低互相关属性。
图9是根据一些实施例,绘出对于57个扇区上8个资源块的固定带宽在原Zadoff-Chu序列集与Zadoff-Chu序列生成方法100生成的截短的序列之间信号干扰噪声(SINR)比对照归一化均方信道估计误差(NMSE)的平均值的图表220。NMSE是信道估计中使用的已知度量。图表220示出以绿色绘出的原序列和以红色绘出的截短的序列。在一些实施例中,观察到3 dB增益的平均值。
图10是根据一些实施例,绘出原Zadoff-Chu序列对截短的Zadoff-Chu序列的SINR对照NMSE的平均值的图表230,截短的Zadoff-Chu序列由截短的Zadoff-Chu序列生成方法100生成。由于基站指派不同带宽到每个UE装置的参考信号传送,因此,对于此曲线图,模拟了为每个扇区选择随机带宽的情形。图9中的图表只示出用于8个资源块序列的NMSE。图10中的图表示出可变带宽选择,即,6、8、12、16、24和48个资源块。在一些实施例中,观察到2 dB增益。
图11是根据一些实施例,绘出原Zadoff-Chu序列与截短的Zadoff-Chu序列两者的峰值对平均功率比(PAPR)的互补累积分布函数(CCDF)的图表240,截短的Zadoff-Chu序列由截短的Zadoff-Chu序列生成方法100生成。在生成570个Zadoff-Chu序列后,计算每个序列的PAPR,并且删除具有高于6.5 dB的PAPR的那些序列。在图表240中,删除72个Zadoff-Chu序列,留下图11中要绘出的498个序列。在一些实施例中,在删除具有大于6.5 dB的PAPR的序列后,在用于新截短的序列的10-1点观察到0.2 dB损耗。大约12.6%的总序列被删除。
截短的Zadoff-Chu序列生成方法100因此对参考信号的传送有用,并且也适合用于上行链路随机接入过程。与原Zadoff-Chu序列相比,在一些实施例中,使用截短的Zadoff-Chu序列生成方法100,多了19倍的序列可用。实验显示在序列的所有可能对中有良好的互相关。在PAPR中0.2 dB损耗的代价下,观察到NMSE信道估计性能中两到三dB增益。总之,此方案增大了可用序列的数量而不丧失性能。在一些实施例中,Zadoff-Chu序列生成方法100极适合用于将来(第四和第五代)异类网络(HetNet)。
当前,LTE规范最多定义在30个序列的两个群组中可用的60个序列。为补偿由于序列的再使用生成的干扰造成的性能丢失,LTE定义复杂的序列和群组跳频,在一些实施例中,使用截短的Zadoff-Chu序列生成方法100时避免了这些方面。
在一些实施例中,在基站90接收器设备中及在用户设备80中实现截短的Zadoff-Chu序列生成方法100。图12是图1的基站90的简化框图。基站90包括其中存储了截短的Zadoff-Chu序列生成方法100的存储器180和用于执行方法的处理器160。在一些实施例中,截短的Zadoff-Chu序列生成方法100用软件实现。基站90可还包括用于存储Zadoff-Chu序列的查找表170。收发器190耦合到一个或多个天线150。收发器代表基站90执行传送和接收操作,并且举几个组件为例,可包括功率放大器、数模转换器、模数转换器、可变增益放大器及低噪声放大器。类似地,用户设备80包括其中存储了截短的Zadoff-Chu序列生成方法100的存储器280和用于执行方法的处理器260。用户设备80可还包括用于存储序列的查找表270。用户设备80也包括收发器290和一个或多个天线250。
图13是根据一些实施例,示出由图1的截短的Zadoff-Chu序列生成方法100执行的操作的流程图。无线邻域50中基站90的接收部分和用户设备80的传送部分将执行图13的操作。最大信道带宽及其对应最大资源块大小和每资源块的子载波数量为基站90(和/或UE 80)经关联过程而先验已知。虽然上述示例假设10 MHz信道,但可采用其它信道带宽。基站90确定小于用于给定信道带宽的子载波的最大数量的最大质数(方框102)。基于该质数,生成Zadoff-Chu序列(方框104)。
一旦Zadoff-Chu序列已生成,方法100便删除PAPR不满足要求的阈值的序列。例如,如图11所示,如果阈值设成6.5 dB,则72个序列具有高于6.5 dB的序列,并且从可用序列池中删除它们。因此,选择生成的序列中的Zadoff-Chu序列60(方框106)。如果选择的Zadoff-Chu序列的PAPR超过预确定的阈值(方框108),则从群组中丢弃该序列(方框110)。此查询为所有Zadoff-Chu序列重复进行(方框112),直至已相对于其PAPR评估所有序列。在未被丢弃的Zadoff-Chu序列60中,方法100随后生成Zadoff-Chu序列的循环移位序列(方框114)。在一些实施例中,未被丢弃的Zadoff-Chu序列60和循环移位的Zadoff-Chu序列存储在一个或多个查找表170、270中。
在一些实施例中,Zadoff-Chu序列的生成、具有高PAPR的Zadoff-Chu序列的删除及Zadoff-Chu序列的循环移位作为单独和不同的操作执行,并且在一些实施例中每次迭代存储在查找表中。因此,例如,查找表170和270(图12)可各存储Zadoff-Chu信息的三个不同表。注意,Zadoff-Chu序列的要求的PAPR及因此所需的阈值由其它因素确定,以及在LTE规范中定义。阈值的确切值不在本公开内容的范围内。
Zadoff-Chu序列到无线邻域50中特定基站90的实际指派经控制信道单独进行,并且不在本公开内容的范围内。
图14是根据一些实施例,示出由用户设备80执行的操作的框图。基站90告诉用户设备80要使用哪些Zadoff-Chu序列(或哪些循环移位的Zadoff-Chu序列)(方框122)及用于该用户的资源块指派(方框124)。在一些实施例中,如上所述,Zadoff-Chu序列60在用户设备80中生成(图13)(方框128)。在其它实施例中,用户设备80从一个或多个查找表270检索Zadoff-Chu序列60(方框130)。在任一情况下,用户设备80截短指派的Zadoff-Chu序列60(来自步骤122)以匹配资源块指派(来自步骤124)(方框128或130)。一旦获得,用户设备80便传送与截短的Zadoff-Chu序列60耦合的信号(方框132)。信号可以是参考信号或其它类型的信号。
虽然本申请已相对有限数量的实施例进行了描述,但本领域的技术人员将理解由此产生的多种修改和变化。随附权利要求旨在涵盖本发明的真正精神和范围内的所有此类修改和变化。
Claims (21)
1. 一种方法,包括:
将最大资源块大小乘以每资源块的子载波数量以获得一个值,其中所述最大资源块大小基于无线传送信道的带宽;
获得比所述值小的最大质数,从而产生第二值;
使用公式生成Zadoff-Chu序列,其中所述序列是基于所述第二值;以及
基于第二资源块大小,截短所述Zadoff-Chu序列,产生截短的Zadoff-Chu序列,其中所述第二资源块大小与第二带宽相关联。
2. 如权利要求1所述的方法,还包括:
将所述截短的Zadoff-Chu序列耦合到信号以便在所述第二带宽通过所述无线传送信道传送。
3. 如权利要求1所述的方法,其中所述Zadoff-Chu序列具有等于所述最大质数的大小,所述方法还包括:
循环扩展所述Zadoff-Chu序列到第二大小,其中所述第二大小等于所述最大资源块大小乘以每资源块的子载波数量;其中所述Zadoff-Chu序列是准正交的。
4. 如权利要求1所述的方法,还包括:
测量所述Zadoff-Chu序列的峰值对平均功率比(PAPR);以及
如果所述PAPR超过预确定的值,则丢弃所述Zadoff-Chu序列。
5. 如权利要求4所述的方法,还包括:
生成所述Zadoff-Chu序列的循环移位,从而产生循环移位的Zadoff-Chu序列;以及
截短所述循环移位的Zadoff-Chu序列,从而产生所述截短的Zadoff-Chu序列;
其中所述截短的Zadoff-Chu序列耦合到所述信号以便通过所述无线传送信道传送。
6. 如权利要求5所述的方法,还包括:
在查找表中存储所述Zadoff-Chu序列;以及
在所述查找表中存储所述循环移位的Zadoff-Chu序列。
7. 如权利要求1所述的方法,其中所述带宽为10 MHz,并且所述最大资源块大小为48。
8. 如权利要求7所述的方法,其中所述10 MHz带宽中的每个资源块具有12个数据子载波。
10. 如权利要求1所述的方法,还包括:
使用所述第二值生成另外的Zadoff-Chu序列;以及
循环扩展所述Zadoff-Chu序列,以便Zadoff-Chu序列的数量等于所述值,从而产生多个Zadoff-Chu序列;
其中所述多个Zadoff-Chu序列是准正交的。
11. 一种用户设备,包括:
天线,传送信号到无线邻域中的远程实体以及接收来自所述远程实体的信号;
耦合到所述天线的收发器;
存储软件程序的存储器;以及
执行所述软件程序的处理器,其中所述软件程序执行以下操作:
从基站接收来自多个Zadoff-Chu序列的Zadoff-Chu序列的指派;
从所述基站接收来自多个资源块的一个或多个资源块的指派,其中多个资源块表征无线传送信道的带宽;
获得所述指派的Zadoff-Chu序列;
基于所述资源块指派,截短所述指派的Zadoff-Chu序列,从而产生截短的Zadoff-Chu序列。
13. 如权利要求12所述的用户设备,其中所述软件程序还执行以下操作:
循环移位第一Zadoff-Chu序列,从而产生所述指派的Zadoff-Chu序列。
14. 如权利要求11所述的用户设备,还包括:
加载到所述存储器中的查找表,其中所述软件程序从所述查找表检索所述指派的Zadoff-Chu序列。
15. 如权利要求11所述的用户设备,其中所述软件程序还执行以下操作:
传送要与所述截短的Zadoff-Chu序列一起传送的所述信号。
16. 如权利要求14所述的用户设备,其中所述软件程序还执行以下操作:
从所述查找表检索所述指派的Zadoff-Chu序列,其中所述指派的Zadoff-Chu序列是另一Zadoff-Chu序列的循环移位版本。
17. 一种制品,包括存储了允许基于处理器的系统执行以下操作的指令的媒体:
使用公式生成Zadoff-Chu序列,其中所述公式接受预确定的值作为输入,其中所述预确定的值是基于无线传送信道的带宽;
接收哪些资源块要用于通过所述无线传送信道传送信号的指示;以及
基于所述指示,截短所述Zadoff-Chu序列,从而产生截短的Zadoff-Chu序列。
18. 如权利要求17所述的制品,还存储指令以允许所述基于处理器的系统执行以下操作:
将所述截短的Zadoff-Chu序列耦合到信号以便在第二带宽通过所述无线传送信道传送。
19. 如权利要求17所述的制品,还存储指令以允许所述基于处理器的系统执行以下操作:
将最大资源块大小乘以每资源块的子载波数量以获得一个值,其中所述最大资源块大小基于无线传送信道的带宽;
获得比所述值小的最大质数,从而产生第二值;
从所述第二值减一,从而产生预确定的数字。
20. 如权利要求17所述的制品,还存储指令以允许所述基于处理器的系统执行以下操作:
测量所述Zadoff-Chu序列的峰值对平均功率比;以及
如果所述峰值对平均功率比超过预确定的值,则丢弃所述Zadoff-Chu序列。
21. 如权利要求17所述的制品,还存储指令以允许所述基于处理器的系统执行以下操作:
生成所述Zadoff-Chu序列的循环移位,从而产生循环移位的Zadoff-Chu序列;
基于所述指示截短所述循环移位的Zadoff-Chu序列,从而产生循环移位的截短的Zadoff-Chu序列;以及
耦合要传送的信号和所述循环移位的截短的Zadoff-Chu序列。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161523080P | 2011-08-12 | 2011-08-12 | |
US61/523080 | 2011-08-12 | ||
PCT/US2012/041636 WO2013025279A1 (en) | 2011-08-12 | 2012-06-08 | Truncated zadoff-chu sequence for lte uplink reference signals |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103765802A true CN103765802A (zh) | 2014-04-30 |
CN103765802B CN103765802B (zh) | 2017-03-22 |
Family
ID=47715344
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180073142.5A Active CN103765968B (zh) | 2011-08-12 | 2011-12-20 | 在异类网络中形成载波聚合定时提前群组 |
CN201810795348.2A Active CN108736920B (zh) | 2011-08-12 | 2011-12-20 | 在异类网络中形成载波聚合定时提前群组 |
CN201280042294.3A Expired - Fee Related CN103765802B (zh) | 2011-08-12 | 2012-06-08 | 用于lte上行链路参考信号的截短的zadoff‑chu序列 |
CN201280042293.9A Active CN103891159B (zh) | 2011-08-12 | 2012-08-03 | 用于异构网络(HetNet)中的关联偏置的方法和装置 |
CN201280042353.7A Active CN103765793B (zh) | 2011-08-12 | 2012-08-08 | 一种用于降低演进节点b之间传送干扰的装置和方法 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180073142.5A Active CN103765968B (zh) | 2011-08-12 | 2011-12-20 | 在异类网络中形成载波聚合定时提前群组 |
CN201810795348.2A Active CN108736920B (zh) | 2011-08-12 | 2011-12-20 | 在异类网络中形成载波聚合定时提前群组 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280042293.9A Active CN103891159B (zh) | 2011-08-12 | 2012-08-03 | 用于异构网络(HetNet)中的关联偏置的方法和装置 |
CN201280042353.7A Active CN103765793B (zh) | 2011-08-12 | 2012-08-08 | 一种用于降低演进节点b之间传送干扰的装置和方法 |
Country Status (10)
Country | Link |
---|---|
US (8) | US9363780B2 (zh) |
EP (3) | EP2742748A4 (zh) |
JP (1) | JP2014522198A (zh) |
KR (1) | KR101546203B1 (zh) |
CN (5) | CN103765968B (zh) |
BR (1) | BR112014002694B1 (zh) |
HK (1) | HK1256892A1 (zh) |
IN (1) | IN2014CN01081A (zh) |
RU (2) | RU2569932C2 (zh) |
WO (6) | WO2013025236A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105245320A (zh) * | 2015-09-09 | 2016-01-13 | 中国科学院自动化研究所 | LTE上行参考信号的q阶ZC序列的生成方法及装置 |
WO2017219996A1 (zh) * | 2016-06-23 | 2017-12-28 | 华为技术有限公司 | 传输用户序列的方法、网络设备和终端设备 |
CN114747187A (zh) * | 2019-12-10 | 2022-07-12 | 高通股份有限公司 | 生成无线通信的信号序列的技术 |
Families Citing this family (139)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106102174B (zh) | 2010-08-11 | 2019-09-24 | 金峰创新公司 | 发送静默信息的装置和方法与获取信道状态的装置和方法 |
CN106059656B (zh) * | 2011-03-24 | 2019-06-25 | Lg电子株式会社 | 用于发送/接收信号的方法及其装置 |
US8395985B2 (en) | 2011-07-25 | 2013-03-12 | Ofinno Technologies, Llc | Time alignment in multicarrier OFDM network |
US8989013B2 (en) | 2011-07-29 | 2015-03-24 | Nec Corporation | Radio station, radio terminal, and synchronization timer control method in radio communication system |
US10321419B2 (en) | 2011-08-10 | 2019-06-11 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting data using a multi-carrier in a mobile communication system |
EP2744132A4 (en) * | 2011-08-10 | 2015-05-06 | Samsung Electronics Co Ltd | METHOD AND DEVICE FOR TRANSMITTING DATA WITH A MULTIPLE CARRIER IN A MOBILE COMMUNICATION SYSTEM |
EP3429307B1 (en) | 2011-08-10 | 2022-06-15 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting data using a multi-carrier in a mobile communication system |
KR102247818B1 (ko) | 2011-08-10 | 2021-05-04 | 삼성전자 주식회사 | 이동통신 시스템에서 복수의 캐리어를 이용해서 데이터를 전송하는 방법 및 장치 |
EP2742748A4 (en) | 2011-08-12 | 2015-08-26 | Intel Corp | SYSTEM AND METHOD FOR UPLINK POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM |
US8797966B2 (en) | 2011-09-23 | 2014-08-05 | Ofinno Technologies, Llc | Channel state information transmission |
US8948158B2 (en) * | 2011-11-04 | 2015-02-03 | Interdigital Patent Holdings, Inc. | Methods of multiple point HSDPA transmission in single or different frequencies |
US8885569B2 (en) | 2011-12-19 | 2014-11-11 | Ofinno Technologies, Llc | Beamforming signaling in a wireless network |
CN103200662B (zh) * | 2012-01-09 | 2016-03-09 | 华为技术有限公司 | 上行发送功率确定方法及用户设备 |
US8964780B2 (en) | 2012-01-25 | 2015-02-24 | Ofinno Technologies, Llc | Sounding in multicarrier wireless communications |
US9237537B2 (en) | 2012-01-25 | 2016-01-12 | Ofinno Technologies, Llc | Random access process in a multicarrier base station and wireless device |
EP3937551A3 (en) | 2012-01-25 | 2022-02-09 | Comcast Cable Communications, LLC | Random access channel in multicarrier wireless communications with timing advance groups |
US9525526B2 (en) * | 2012-02-02 | 2016-12-20 | Nokia Solutions And Networks Oy | Signaling of uplink scheduling information in case of carrier aggregation |
JP5859865B2 (ja) * | 2012-02-03 | 2016-02-16 | 株式会社Nttドコモ | 移動局 |
US9325454B2 (en) * | 2012-02-24 | 2016-04-26 | Futurewei Technologies, Inc. | System and method for HARQ entity configuration |
JP5905749B2 (ja) * | 2012-03-06 | 2016-04-20 | 株式会社Nttドコモ | 無線基地局 |
US9832658B2 (en) * | 2012-03-23 | 2017-11-28 | Nokia Solutions And Networks Oy | Interference coordination by means of directional antenna beams in a wireless system |
EP2832027A4 (en) * | 2012-03-27 | 2015-10-07 | Nec China Co Ltd | METHOD AND APPARATUS FOR SIGNALING AND CANCELING INTERFERENCE IN THE SAME PATH OF A CROSSED SUBFRAME |
US8934438B2 (en) | 2012-04-01 | 2015-01-13 | Ofinno Technologies, Llc | Uplink transmission timing advance in a wireless device and base station |
US8964590B2 (en) | 2012-04-01 | 2015-02-24 | Ofinno Technologies, Llc | Random access mechanism for a wireless device and base station |
US11943813B2 (en) | 2012-04-01 | 2024-03-26 | Comcast Cable Communications, Llc | Cell grouping for wireless communications |
WO2013151651A1 (en) | 2012-04-01 | 2013-10-10 | Dinan Esmael Hejazi | Cell group configuration in a wireless device and base station with timing advance groups |
US8958342B2 (en) | 2012-04-17 | 2015-02-17 | Ofinno Technologies, Llc | Uplink transmission power in a multicarrier wireless device |
US11825419B2 (en) | 2012-04-16 | 2023-11-21 | Comcast Cable Communications, Llc | Cell timing in a wireless device and base station |
US11582704B2 (en) | 2012-04-16 | 2023-02-14 | Comcast Cable Communications, Llc | Signal transmission power adjustment in a wireless device |
US8971280B2 (en) | 2012-04-20 | 2015-03-03 | Ofinno Technologies, Llc | Uplink transmissions in a wireless device |
US8964593B2 (en) | 2012-04-16 | 2015-02-24 | Ofinno Technologies, Llc | Wireless device transmission power |
US11252679B2 (en) | 2012-04-16 | 2022-02-15 | Comcast Cable Communications, Llc | Signal transmission power adjustment in a wireless device |
EP3337079B1 (en) | 2012-04-16 | 2024-06-05 | Comcast Cable Communications, LLC | Cell group configuration for uplink transmission in a multicarrier wireless device and base station with timing advance groups |
US9179425B2 (en) | 2012-04-17 | 2015-11-03 | Ofinno Technologies, Llc | Transmit power control in multicarrier communications |
WO2013158934A1 (en) * | 2012-04-18 | 2013-10-24 | Qualcomm Incorporated | Multi-radio coexistence |
KR102091607B1 (ko) * | 2012-04-29 | 2020-03-20 | 엘지전자 주식회사 | 상향링크 신호 전송 및 수신 방법, 및 이들을 위한 장치 |
EP3154303B1 (en) | 2012-05-16 | 2018-07-18 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangement in a communications network |
US9084203B2 (en) * | 2012-05-21 | 2015-07-14 | Qualcomm Incorporated | Methods and apparatus for providing transmit power control for devices engaged in D2D communications |
US9107206B2 (en) | 2012-06-18 | 2015-08-11 | Ofinne Technologies, LLC | Carrier grouping in multicarrier wireless networks |
US11882560B2 (en) | 2012-06-18 | 2024-01-23 | Comcast Cable Communications, Llc | Carrier grouping in multicarrier wireless networks |
US9084228B2 (en) | 2012-06-20 | 2015-07-14 | Ofinno Technologies, Llc | Automobile communication device |
US11622372B2 (en) | 2012-06-18 | 2023-04-04 | Comcast Cable Communications, Llc | Communication device |
US9179457B2 (en) | 2012-06-20 | 2015-11-03 | Ofinno Technologies, Llc | Carrier configuration in wireless networks |
US8971298B2 (en) | 2012-06-18 | 2015-03-03 | Ofinno Technologies, Llc | Wireless device connection to an application server |
US9113387B2 (en) * | 2012-06-20 | 2015-08-18 | Ofinno Technologies, Llc | Handover signalling in wireless networks |
US9210619B2 (en) | 2012-06-20 | 2015-12-08 | Ofinno Technologies, Llc | Signalling mechanisms for wireless device handover |
US8885752B2 (en) * | 2012-07-27 | 2014-11-11 | Intel Corporation | Method and apparatus for feedback in 3D MIMO wireless systems |
EP2883076A1 (en) * | 2012-08-13 | 2015-06-17 | Telefonaktiebolaget LM Ericsson (PUBL) | Enhancing positioning with transmit-timing adjustment information |
US9363749B2 (en) * | 2012-09-13 | 2016-06-07 | Qualcomm Incorporated | Dynamic power scaling of digital modems |
KR101898050B1 (ko) * | 2012-10-15 | 2018-10-04 | 삼성전자주식회사 | 무선 통신시스템에서 가상셀 브레싱에 기반한 핸드오버 처리 방법 및 장치 |
TWI487408B (zh) * | 2012-11-01 | 2015-06-01 | Innovative Sonic Corp | 在無線通訊系統中處理上行鏈路資訊之方法 |
GB2508383B (en) * | 2012-11-29 | 2014-12-17 | Aceaxis Ltd | Processing interference due to non-linear products in a wireless network |
US9407489B2 (en) * | 2013-01-24 | 2016-08-02 | Blackberry Limited | Cell identity design for LTE-advanced |
US11005613B2 (en) * | 2013-01-24 | 2021-05-11 | Qualcomm Incorporated | Multiple power control and timing advance loops during wireless communication |
EP2954714A2 (en) * | 2013-02-07 | 2015-12-16 | Interdigital Patent Holdings, Inc. | Interference measurements and management in directional mesh networks |
US9042218B2 (en) * | 2013-03-07 | 2015-05-26 | Qualcomm Incorporated | Apparatus, method, and system for incentivizing open access to closed subscriber group low-power base stations |
US9300451B2 (en) | 2013-03-13 | 2016-03-29 | Samsung Electronics Co., Ltd. | Transmission of sounding reference signals for adaptively configured TDD communication systems |
US9306725B2 (en) * | 2013-03-13 | 2016-04-05 | Samsung Electronics Co., Ltd. | Channel state information for adaptively configured TDD communication systems |
EP2997756B1 (en) * | 2013-05-14 | 2017-12-06 | Nokia Solutions and Networks Oy | Method and network device for cell anomaly detection |
KR101664876B1 (ko) * | 2013-05-14 | 2016-10-12 | 삼성전자 주식회사 | 무선 통신 시스템에서 셀간 간섭 제어를 위한 간섭 측정 방법 및 장치 |
US9386461B2 (en) * | 2013-06-21 | 2016-07-05 | Qualcomm Incorporated | Location aware self-locating access point |
JP6114468B2 (ja) * | 2013-07-19 | 2017-04-12 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおけるランダムアクセス手順を実行するための方法及び装置 |
JP6204100B2 (ja) * | 2013-07-23 | 2017-09-27 | 株式会社Nttドコモ | 無線基地局及び無線通信方法 |
KR20160039573A (ko) * | 2013-08-01 | 2016-04-11 | 엘지전자 주식회사 | 단말이 랜덤 액세스를 수행하는 방법 및 단말 |
KR20150020018A (ko) * | 2013-08-14 | 2015-02-25 | 삼성전자주식회사 | 이동 통신 시스템에서 복수의 캐리어를 이용하는 데이터 송수신 방법 및 장치 |
US10411820B2 (en) * | 2013-08-15 | 2019-09-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods, user equipment and radio network node for interference mitigation in a dynamic time division duplex system |
JP6148573B2 (ja) * | 2013-08-16 | 2017-06-14 | 株式会社Nttドコモ | 通信制御装置、通信制御システム、及び通信制御方法 |
JP6446710B2 (ja) * | 2013-08-20 | 2019-01-09 | シャープ株式会社 | 基地局装置、端末装置、無線通信方法および集積回路 |
KR102071535B1 (ko) | 2013-08-26 | 2020-01-30 | 삼성전자주식회사 | 무선 통신 시스템에서 매크로 셀과 스몰 셀 간 스위칭을 위한 자원 할당 장치 및 방법 |
US9078220B2 (en) | 2013-09-27 | 2015-07-07 | Motorola Solutions, Inc. | Method and apparatus for UE power class adaption for coverage extension in LTE |
KR102252635B1 (ko) | 2013-11-17 | 2021-05-18 | 핑 리앙 | 무선 네트워크를 위한 대형 mimo 다수 사용자 빔포밍 및 단일 채널 풀 듀플렉스장치 및 그 방법 |
US9888427B2 (en) * | 2013-12-05 | 2018-02-06 | Lg Electronics Inc. | Method and apparatus for transceiving signal in wireless communication system |
WO2015095843A1 (en) * | 2013-12-20 | 2015-06-25 | Ping Liang | Method for acquiring channel state information in fdd mimo wireless networks |
US9847819B2 (en) | 2013-12-20 | 2017-12-19 | RF DSP Inc. | Adaptive precoding in a MIMO wireless communication system |
JP6442140B2 (ja) * | 2013-12-26 | 2018-12-19 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
JP6608833B2 (ja) * | 2014-02-16 | 2019-11-20 | エルジー エレクトロニクス インコーポレイティド | Fdr伝送を支援する無線接続システムにおけるリソース割当て方法及び装置 |
CN108199809B (zh) * | 2014-05-23 | 2021-10-01 | 华为技术有限公司 | 一种传输信息的方法,基站和用户设备 |
US20160021618A1 (en) | 2014-07-18 | 2016-01-21 | Sharp Laboratories Of America, Inc. | Systems and methods for uplink transmission power control |
JP6531761B2 (ja) * | 2014-08-05 | 2019-06-19 | 日本電気株式会社 | 基地局、通信システム、方法及びプログラム |
US9867146B2 (en) | 2014-08-06 | 2018-01-09 | Sharp Kabushiki Kaisha | Systems and methods for dual-connectivity operation |
CN106576259B (zh) * | 2014-08-15 | 2020-05-08 | 瑞典爱立信有限公司 | 用于小区选择的方法、rrm节点和计算机可读介质 |
KR101814248B1 (ko) | 2014-09-05 | 2018-01-04 | 주식회사 케이티 | 무선랜 캐리어를 이용한 데이터 전송 방법 및 장치 |
CN107071913B (zh) | 2014-09-18 | 2020-04-21 | 株式会社Kt | 用于处理用户平面数据的方法及装置 |
CN104202110B (zh) * | 2014-09-23 | 2017-03-29 | 中国人民解放军重庆通信学院 | 一种相互正交的准互补配对序列集合生成方法及装置 |
US10736175B2 (en) | 2014-10-02 | 2020-08-04 | Kt Corporation | Method for processing data using WLAN carrier and apparatus therefor |
CN107148791B (zh) * | 2014-11-06 | 2023-03-10 | 株式会社Ntt都科摩 | 终端、无线基站以及无线通信方法 |
US9900134B2 (en) * | 2014-12-15 | 2018-02-20 | Intel IP Corporation | Reference signal presence detection based license assisted access and reference signal sequence design |
EP3247162B1 (en) * | 2015-02-09 | 2019-04-10 | Huawei Technologies Co., Ltd. | Method for retransmitting rlc data packet and base station |
US9871572B2 (en) | 2015-03-09 | 2018-01-16 | Ofinno Technologies, Llc | Uplink control channel in a wireless network |
WO2016163506A1 (ja) * | 2015-04-09 | 2016-10-13 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
WO2016171471A1 (ko) * | 2015-04-20 | 2016-10-27 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말에 의해 수행되는 d2d 동작 방법 및 상기 방법을 이용하는 단말 |
US10687309B2 (en) * | 2015-05-08 | 2020-06-16 | Texas Instruments Incorporated | Enhanced broadcast transmission in unslotted channel hopping medium access control |
EP3294025B1 (en) * | 2015-06-04 | 2021-08-04 | Huawei Technologies Co., Ltd. | Method, device and system for information transmission |
CN105099528B (zh) * | 2015-08-28 | 2018-11-30 | 河北电信设计咨询有限公司 | 相邻扇区数据协调发送方法 |
US10015757B2 (en) * | 2015-09-14 | 2018-07-03 | Ofinno Technologies, Llc | Uplink timing advance configuration of a wireless device and base station |
JP6593450B2 (ja) * | 2015-11-12 | 2019-10-23 | 富士通株式会社 | 端末装置、基地局装置、無線通信システム及び無線通信方法 |
US10123347B2 (en) * | 2015-12-04 | 2018-11-06 | Qualcomm Incorporated | Method and apparatus for decoupling uplink latency using common uplink burst in TDD subframe structure |
US10708016B2 (en) * | 2015-12-14 | 2020-07-07 | Qualcomm Incorporated | Reference signals for estimating mixed interference |
TWI609577B (zh) | 2016-01-29 | 2017-12-21 | 財團法人工業技術研究院 | 執行上行鏈路通道估測的方法及使用所述方法的基地台 |
EP3420657A4 (en) * | 2016-02-24 | 2019-10-02 | Intel IP Corporation | PHYSICAL UPLINK CONTROL CHANNEL FORMATS FOR 5G |
US11038557B2 (en) | 2016-03-31 | 2021-06-15 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving reference signals in wireless communication |
US20170289917A1 (en) * | 2016-04-01 | 2017-10-05 | Nokia Solutions And Networks Oy | Dynamic time division duplex interference mitigation in a wireless network |
US9742480B1 (en) * | 2016-05-25 | 2017-08-22 | Futurewei Technologies, Inc. | Channel-state information determination in wireless networks |
US10211907B1 (en) | 2016-05-26 | 2019-02-19 | Sprint Spectrum L.P. | Coordinated multipoint mode selection for relay base station |
JP6729850B2 (ja) * | 2016-07-25 | 2020-07-29 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | スケジューリング方法、電力制御方法、基地局、およびプログラム |
US20180076917A1 (en) * | 2016-09-14 | 2018-03-15 | Mediatek Inc. | Short PUCCH In NR Networks |
EP3297343A3 (en) | 2016-09-19 | 2018-06-20 | ASUSTek Computer Inc. | Method and apparatus for handling timing advance for uplink transmission in a wireless communication system |
US10440693B2 (en) * | 2016-11-04 | 2019-10-08 | At&T Intellectual Property I, L.P. | Asynchronous multi-point transmission schemes |
US10652894B2 (en) * | 2016-11-11 | 2020-05-12 | Qualcomm Incorporated | Timing advance reporting for latency reduction |
CN110235391B (zh) * | 2016-12-16 | 2020-12-08 | 康普技术有限责任公司 | 用于在相同频带上操作共同定位的收发器的方法和装置 |
CN108289021B (zh) | 2017-01-09 | 2021-10-01 | 华为技术有限公司 | 参考信号的传输方法和设备 |
EP3590209B1 (en) * | 2017-03-03 | 2021-03-31 | Telefonaktiebolaget LM Ericsson (publ) | Sequence generation |
US10356776B1 (en) * | 2017-03-22 | 2019-07-16 | Sprint Spectrum Lp | Dynamic deployment of new frame configuration |
US10237759B1 (en) * | 2017-03-29 | 2019-03-19 | Sprint Spectrum L.P. | Coordinated multipoint set selection based on donor status |
CN110268745B (zh) * | 2017-03-31 | 2024-05-21 | 英特尔公司 | 无线设备切换 |
US10164800B2 (en) * | 2017-03-31 | 2018-12-25 | Intel Corporation | Channel estimation using peak cancellation |
CN108811102A (zh) * | 2017-05-04 | 2018-11-13 | 株式会社Ntt都科摩 | 干扰协调信息交互方法、减轻交叉链路干扰的方法和基站 |
US10694334B2 (en) * | 2017-05-08 | 2020-06-23 | Qualcomm Incorporated | Method and/or system for positioning of a mobile device |
CN111164906B (zh) | 2017-10-02 | 2022-10-18 | 联想(新加坡)私人有限公司 | 上行链路功率控制 |
WO2019086125A1 (en) * | 2017-11-03 | 2019-05-09 | Huawei Technologies Co., Ltd. | Management of timing advance values |
CN111492698A (zh) * | 2017-11-09 | 2020-08-04 | 株式会社Ntt都科摩 | 用户终端以及无线通信方法 |
WO2019105394A1 (en) * | 2017-11-28 | 2019-06-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Synchronization transmission carrier selection |
US10674518B2 (en) | 2017-12-27 | 2020-06-02 | Comcast Cable Communications, Llc | Dynamic management of interference and coverage in wireless communications |
CN110087212A (zh) * | 2018-01-25 | 2019-08-02 | 矢崎总业株式会社 | 无线通信终端和通信控制方法 |
US11166184B2 (en) * | 2018-06-29 | 2021-11-02 | Qualcomm Incorporated | Techniques to reduce base station to base station interference in semi-synchronous time division duplex operations |
EP3629506A1 (en) * | 2018-09-27 | 2020-04-01 | Panasonic Intellectual Property Corporation of America | User equipment and base station involved in the transmission of data |
CN113711521B (zh) | 2019-02-22 | 2024-09-13 | 诺基亚技术有限公司 | 选择性参考信号测量 |
CN110392350B (zh) * | 2019-08-06 | 2021-05-07 | 北京邮电大学 | 一种基于Backhaul容量感知的用户为中心无人机群组构建方法 |
CN112989124B (zh) * | 2019-12-02 | 2023-04-07 | 中国移动通信集团浙江有限公司 | 多网联动数据协同配置方法、装置、计算设备及存储介质 |
US11706790B2 (en) * | 2019-12-20 | 2023-07-18 | Qualcomm Incorporated | Group selection for uplink transmission |
US20210321416A1 (en) * | 2020-04-09 | 2021-10-14 | Qualcomm Incorporated | Asymmetric time division duplexing coexistence techniques |
US20210409104A1 (en) * | 2020-06-26 | 2021-12-30 | Wilson Electronics, Llc | Time division duplex (tdd) network protection repeater |
EP4205330A1 (en) * | 2020-08-25 | 2023-07-05 | Telefonaktiebolaget LM Ericsson (publ) | Interference robust adaptive tdd configuration with multi-trp |
FI20215005A1 (en) | 2021-01-04 | 2022-07-05 | Nokia Technologies Oy | Reference signal arrangement |
US12096242B2 (en) * | 2022-01-19 | 2024-09-17 | Lg Electronics Inc. | Method and apparatus for reducing interference effects in wireless communication systems |
KR20240136923A (ko) * | 2022-01-24 | 2024-09-19 | 지티이 코포레이션 | 네트워크 노드에 대한 센싱 기반 간섭 관리 방법 |
CN116744324A (zh) * | 2022-03-02 | 2023-09-12 | 中兴通讯股份有限公司 | 信道状态信息更新方法、基站、设备及存储介质 |
TWI816343B (zh) * | 2022-03-30 | 2023-09-21 | 新加坡商鴻運科股份有限公司 | 提供較佳連線信號的方法、電子裝置及電腦可讀儲存媒體 |
WO2024155131A1 (ko) * | 2023-01-18 | 2024-07-25 | 엘지전자 주식회사 | 무선 통신 시스템에서 랜덤 액세스 절차를 위한 방법 및 그 장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080232432A1 (en) * | 2007-03-20 | 2008-09-25 | Lee Jung A | non-coherent transmission method for uplink control signals using a constant amplitude zero-autocorrelation sequence |
WO2009041066A1 (ja) * | 2007-09-28 | 2009-04-02 | Panasonic Corporation | 無線通信装置および系列長調整方法 |
CN101427493A (zh) * | 2006-04-21 | 2009-05-06 | 三星电子株式会社 | 用于在无线通信系统中传送和接收信道质量信息的方法和设备 |
WO2009118707A1 (en) * | 2008-03-26 | 2009-10-01 | Nokia Corporation | Reporting channel state information |
CN101601250A (zh) * | 2007-02-02 | 2009-12-09 | Lg电子株式会社 | 利用分组生成参考信号序列的方法 |
Family Cites Families (124)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI112841B (fi) * | 1999-06-01 | 2004-01-15 | Nokia Corp | Menetelmä ja järjestely yhteyden muodostamiseksi tukiaseman ja matkaviestimen välille sekä matkaviestin |
GB0000528D0 (en) * | 2000-01-11 | 2000-03-01 | Nokia Networks Oy | Location of a station in a telecommunications system |
EP1588530A2 (en) * | 2003-01-27 | 2005-10-26 | Raza Microelectronics, Inc. | Method and device for the classification and redirection of data packets in a heterogeneous network |
KR100827105B1 (ko) * | 2004-02-13 | 2008-05-02 | 삼성전자주식회사 | 광대역 무선 통신 시스템에서 고속 레인징을 통한 빠른핸드오버 수행 방법 및 장치 |
IL161419A (en) * | 2004-04-15 | 2010-02-17 | Alvarion Ltd | Handling communication interferences in wireless systems |
WO2006087797A1 (ja) * | 2005-02-18 | 2006-08-24 | Fujitsu Limited | 基地局及び該基地局における干渉低減方法 |
KR100996023B1 (ko) * | 2005-10-31 | 2010-11-22 | 삼성전자주식회사 | 다중 안테나 통신 시스템에서 데이터 송수신 장치 및 방법 |
FR2893433B1 (fr) * | 2005-11-16 | 2008-06-27 | Commissariat Energie Atomique | Procedes et dispositifs de demodulation souple dans un systeme ofdm-cdma. |
US8014455B2 (en) * | 2006-03-27 | 2011-09-06 | Qualcomm Incorporated | Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system |
EP2033385A4 (en) * | 2006-06-23 | 2013-08-21 | Bae Sys Inf & Elect Sys Integ | MOBILE AD HOC NETWORK SUPPORT (MANET) AND POINT TO MULTIPOINT (PMP) COMMUNICATIONS BETWEEN N UDS IN A WIRELESS NETWORK |
JP5077525B2 (ja) * | 2006-08-22 | 2012-11-21 | 日本電気株式会社 | 無線通信システムにおけるリファレンス信号多重方法および無線通信装置 |
KR100770145B1 (ko) | 2006-09-13 | 2007-10-25 | 한국정보통신주식회사 | 플랫폼 기반 다중모드 통신용 무선단말 및 기록매체 |
CN101617551B (zh) * | 2006-10-13 | 2013-04-10 | 法国电信 | 经含多种接入方式的异构网络从用户终端接入服务的方法 |
KR101045180B1 (ko) * | 2006-12-08 | 2011-06-28 | 후지쯔 가부시끼가이샤 | 간섭 저감 방법 및 기지국 장치 |
US8837337B2 (en) * | 2007-01-12 | 2014-09-16 | Qualcomm Incorporated | Signaling of power information for MIMO transmission in a wireless communication system |
US7944980B2 (en) * | 2007-02-02 | 2011-05-17 | Research In Motion Limited | Apparatus, and associated method, for communicating a data block in a multi carrier modulation communication scheme |
JP4935993B2 (ja) * | 2007-02-05 | 2012-05-23 | 日本電気株式会社 | 無線通信システムにおけるリファレンス信号生成方法および装置 |
CN101257701A (zh) * | 2007-03-02 | 2008-09-03 | 华为技术有限公司 | 异构网络切换中链路操作的方法及装置 |
US8112041B2 (en) * | 2007-03-14 | 2012-02-07 | Sharp Kabushiki Kaisha | Systems and methods for generating sequences that are nearest to a set of sequences with minimum average cross-correlation |
US7899481B2 (en) * | 2007-03-19 | 2011-03-01 | Freescale Semiconductor, Inc. | Reference signal selection techniques for a wireless communication system |
US8036702B2 (en) | 2007-05-14 | 2011-10-11 | Intel Corporation | Method and apparatus for multicarrier communication in wireless systems |
US8750917B2 (en) * | 2007-05-18 | 2014-06-10 | Qualcomm Incorporated | Multiplexing and power control of uplink control channels in a wireless communication system |
US7979077B2 (en) * | 2007-06-18 | 2011-07-12 | Panasonic Corporation | Sequence allocating method, transmitting method and wireless mobile station device |
US8509344B2 (en) * | 2007-08-08 | 2013-08-13 | Panasonic Corporation | Radio transmission device and radio communication method |
CN101094529B (zh) * | 2007-08-10 | 2011-03-02 | 中兴通讯股份有限公司 | 随机接入信道的zc序列排序方法及装置 |
EP2189011A4 (en) * | 2007-09-12 | 2014-02-19 | Apple Inc | SYSTEMS AND METHODS FOR UPLINK SIGNALING |
US20090073944A1 (en) * | 2007-09-17 | 2009-03-19 | Jing Jiang | Restricted Cyclic Shift Configuration for Random Access Preambles in Wireless Networks |
US8553624B2 (en) * | 2007-10-10 | 2013-10-08 | Samsung Electronics Co., Ltd. | Asynchronous hybrid ARQ process indication in a MIMO wireless communication system |
US8150443B2 (en) * | 2007-10-31 | 2012-04-03 | Nokia Siemens Networks Oy | Overload indicator for adjusting open loop power control parameters |
US8705506B2 (en) * | 2007-11-16 | 2014-04-22 | Qualcomm Incorporated | Time reservation for a dominant interference scenario in a wireless communication network |
WO2009072178A1 (ja) * | 2007-12-03 | 2009-06-11 | Fujitsu Limited | 上り送信電力制御方法並びに通信端末装置、基地局装置及び移動通信システム |
CN101179860B (zh) * | 2007-12-05 | 2011-03-16 | 中兴通讯股份有限公司 | 随机接入信道的zc序列排序方法和装置 |
US20100272022A1 (en) * | 2007-12-27 | 2010-10-28 | Panasonic Corporation | Sequence hopping method, wireless communication terminal apparatus and wireless communication base station apparatus |
WO2009084222A1 (ja) * | 2007-12-27 | 2009-07-09 | Panasonic Corporation | 系列番号設定方法、無線通信端末装置および無線通信基地局装置 |
JPWO2009084225A1 (ja) * | 2007-12-27 | 2011-05-12 | パナソニック株式会社 | 系列番号設定方法、無線通信端末装置および無線通信基地局装置 |
EP2229797B1 (en) | 2008-01-07 | 2014-12-31 | Telefonaktiebolaget L M Ericsson (publ) | Uplink power control for power limited terminals |
US8504091B2 (en) | 2008-02-01 | 2013-08-06 | Qualcomm Incorporated | Interference mitigation for control channels in a wireless communication network |
US8127197B2 (en) * | 2008-03-13 | 2012-02-28 | Motorola Mobility, Inc. | Method and apparatus for radio link control padding for enhanced general packet radio service |
WO2009116562A1 (ja) * | 2008-03-19 | 2009-09-24 | 日本電気株式会社 | 無線通信システム、無線通信の設定方法、基地局、移動局、及びプログラム |
US8811353B2 (en) * | 2008-04-22 | 2014-08-19 | Texas Instruments Incorporated | Rank and PMI in download control signaling for uplink single-user MIMO (UL SU-MIMO) |
US8626223B2 (en) | 2008-05-07 | 2014-01-07 | At&T Mobility Ii Llc | Femto cell signaling gating |
JP5279386B2 (ja) * | 2008-07-24 | 2013-09-04 | 株式会社エヌ・ティ・ティ・ドコモ | 閉ループ送信電力制御方法及び無線基地局装置 |
WO2010022773A1 (en) * | 2008-08-27 | 2010-03-04 | Nokia Siemens Networks Oy | Multiple power control parameter sets for wireless uplink data transmission |
US8111655B2 (en) * | 2008-08-28 | 2012-02-07 | Airhop Communications, Inc. | System and method of base station performance enhancement using coordinated antenna array |
US8311053B2 (en) * | 2008-09-15 | 2012-11-13 | Infineon Technologies Ag | Methods for controlling an uplink signal transmission power and communication devices |
US20100093354A1 (en) * | 2008-10-09 | 2010-04-15 | Qualcomm Incorporated | System and method to utilize pre-assigned resources to support handoff of a mobile station from a macro base station to a femto base station |
WO2010050899A1 (en) * | 2008-10-28 | 2010-05-06 | Agency For Science, Technology And Research | A method of optimising bandwidth allocation in a wireless communication network |
US8249531B2 (en) * | 2008-10-31 | 2012-08-21 | Apple, Inc. | Transmit power measurement and control methods and apparatus |
US9019902B2 (en) * | 2008-11-11 | 2015-04-28 | Qualcomm Incorporated | Channel quality feedback in multicarrier systems |
KR101122095B1 (ko) | 2009-01-05 | 2012-03-19 | 엘지전자 주식회사 | 불필요한 재전송 방지를 위한 임의접속 기법 및 이를 위한 단말 |
WO2010093205A2 (ko) * | 2009-02-12 | 2010-08-19 | (주)엘지전자 | 간섭 회피 방법 |
US8611331B2 (en) * | 2009-02-27 | 2013-12-17 | Qualcomm Incorporated | Time division duplexing (TDD) configuration for access point base stations |
US8238483B2 (en) | 2009-02-27 | 2012-08-07 | Marvell World Trade Ltd. | Signaling of dedicated reference signal (DRS) precoding granularity |
WO2010107907A2 (en) * | 2009-03-17 | 2010-09-23 | Samsung Electronics Co., Ltd. | Uplink transmission power control in multi-carrier communication systems |
US20100267386A1 (en) * | 2009-04-17 | 2010-10-21 | Qualcomm Incorporated | Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station |
US20110110455A1 (en) | 2009-04-23 | 2011-05-12 | Qualcomm Incorporated | Rank and precoding indication for mimo operation |
EP2760241B1 (en) * | 2010-04-01 | 2018-05-30 | Sun Patent Trust | Transmit power control for physical random access channels |
US20110261704A1 (en) | 2010-04-23 | 2011-10-27 | Kamran Etemad | Multi-carrier operational modes in wireless communications protocol, method of initializing a mobile station in order to prepare for multi-carrier operation in same, and carrier management method in same |
KR101641971B1 (ko) * | 2009-05-15 | 2016-07-22 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치 |
EP2421184B1 (en) * | 2009-05-21 | 2020-07-08 | LG Electronics Inc. -1- | Method and apparatus for transmitting reference signals in a multi-antenna system |
US8351359B2 (en) * | 2009-05-22 | 2013-01-08 | Research In Motion Limited | Reporting power headroom for aggregated carriers |
US8537750B2 (en) * | 2009-06-02 | 2013-09-17 | Futurewei Technologies, Inc. | System and method for transport block size design for multiple-input, multiple-output (MIMO) in a wireless communications system |
CN101924586A (zh) * | 2009-06-10 | 2010-12-22 | 中兴通讯股份有限公司 | 一种多用户波束成形的方法和基站 |
US8238323B2 (en) * | 2009-06-11 | 2012-08-07 | Intel Corporation | OFDMA cellular network and method for mitigating interference |
JP2011004161A (ja) * | 2009-06-18 | 2011-01-06 | Sharp Corp | 通信システム、通信装置および通信方法 |
US8923143B2 (en) | 2009-06-29 | 2014-12-30 | Qualcomm Incorporated | Open loop channel reporting in a wireless communication system |
US8630229B2 (en) * | 2009-07-06 | 2014-01-14 | Intel Corporation | Base station and method for reducing asynchronous interference in a multi-tier OFDMA overlay network |
WO2011005011A2 (ko) * | 2009-07-06 | 2011-01-13 | 엘지전자 주식회사 | 무선 통신 시스템에서 임의 접속 방법 및 장치 |
US8666441B2 (en) * | 2009-07-14 | 2014-03-04 | Futurewei Technologies, Inc. | System and method for uplink power control in a wireless communications system |
US8761094B2 (en) * | 2009-07-22 | 2014-06-24 | Qualcomm Incorporated | Method and apparatus that facilitates interference cancellation for control channels in heterogenous networks |
US20110021197A1 (en) | 2009-07-24 | 2011-01-27 | Qualcomm Incorporated | Apparatus and method for facilitating transfer to a secondary cell |
US8477705B2 (en) * | 2009-07-30 | 2013-07-02 | Qualcomm Incorporated | Efficient control channel decoding in CoMP communications |
US8428521B2 (en) * | 2009-08-04 | 2013-04-23 | Qualcomm Incorporated | Control for uplink in MIMO communication system |
US8386875B2 (en) * | 2009-08-07 | 2013-02-26 | Research In Motion Limited | Method and system for handling HARQ operations during transmission mode changes |
WO2011020027A1 (en) * | 2009-08-14 | 2011-02-17 | Interdigital Patent Holdings, Inc. | Mcch notification scheduling and contents |
EP2465315B1 (en) * | 2009-08-14 | 2015-01-07 | Nec Corporation | Method for detecting a downlink control structure for carrier aggregation |
WO2011027091A1 (en) * | 2009-09-03 | 2011-03-10 | Toshiba Research Europe Limited | Wireless communication method and apparatus |
AU2010290233B2 (en) * | 2009-09-07 | 2014-08-28 | Lg Electronics Inc. | Method and apparatus for transmitting/receiving a reference signal in a wireless communication system |
CN102014477B (zh) * | 2009-10-30 | 2013-11-06 | 电信科学技术研究院 | 一种上行同步的方法、装置和系统 |
EP2317815A1 (en) * | 2009-11-02 | 2011-05-04 | Panasonic Corporation | Power-limit reporting in a communication system using carrier aggregation |
EP2320699A1 (en) * | 2009-11-10 | 2011-05-11 | Alcatel Lucent | A Femtocell base station, and a method of triggering transfer of a radio connection with a user terminal from a macrocell base station to a femtocell base station |
US8483242B2 (en) * | 2009-11-11 | 2013-07-09 | Lg Electronics Inc. | Method and apparatus for processing inter-rat measurement in dual modem device |
US8478342B2 (en) * | 2009-11-19 | 2013-07-02 | Texas Instruments Incorporated | Inter-cell interference coordination |
CN102292937B (zh) * | 2009-12-07 | 2014-02-12 | 联发科技股份有限公司 | 减少运作于相邻频带中的两个通信系统之间干扰的方法 |
CN102123525A (zh) * | 2010-01-07 | 2011-07-13 | 夏普株式会社 | 下行多天线多基站干扰协调方法和基站 |
KR101689039B1 (ko) * | 2010-01-07 | 2017-01-03 | 엘지전자 주식회사 | 무선 통신 시스템에서 참조 신호 시퀀스 생성 방법 및 장치 |
KR101512388B1 (ko) | 2010-01-08 | 2015-04-16 | 인터디지탈 패튼 홀딩스, 인크 | 다수의 업링크 캐리어와의 시간 정렬 유지 |
KR101521001B1 (ko) * | 2010-01-08 | 2015-05-15 | 인터디지탈 패튼 홀딩스, 인크 | 다중 반송파의 채널 상태 정보 전송 방법 |
CN105050178B (zh) * | 2010-01-12 | 2019-05-03 | 华为技术有限公司 | 一种定时提前分组的确定方法及装置 |
US8693414B2 (en) * | 2010-01-15 | 2014-04-08 | Ralink Technology Corp. | Multi-user transmission method, multiple input multiple output transmission system using the same, scheduling method and access point using the same for scheduling simultaneous transmission |
US8953507B2 (en) * | 2010-02-11 | 2015-02-10 | Qualcomm Incorporated | Frequency and time domain range expansion |
EP2360866A1 (en) * | 2010-02-12 | 2011-08-24 | Panasonic Corporation | Component carrier activation and deactivation using resource assignments |
WO2011100672A1 (en) * | 2010-02-12 | 2011-08-18 | Research In Motion Limited | Reference signal for a coordinated multi-point network implementation |
KR101674958B1 (ko) * | 2010-03-05 | 2016-11-10 | 엘지전자 주식회사 | 셀 간 간섭을 제어하기 위한 장치 및 방법 |
US8953522B2 (en) * | 2010-03-29 | 2015-02-10 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling retransmission on uplink in a wireless communication system supporting MIMO |
US8774092B2 (en) * | 2010-04-20 | 2014-07-08 | Qualcomm Incorporated | Enhancing uplink coverage in interference scenarios |
US20110267948A1 (en) | 2010-05-03 | 2011-11-03 | Koc Ali T | Techniques for communicating and managing congestion in a wireless network |
US8761097B2 (en) * | 2010-05-19 | 2014-06-24 | Qualcomm Incorporated | Systems and methods for enhancing uplink coverage in interference scenerios |
US8971261B2 (en) * | 2010-06-02 | 2015-03-03 | Samsung Electronics Co., Ltd. | Method and system for transmitting channel state information in wireless communication systems |
KR101227520B1 (ko) * | 2010-07-09 | 2013-01-31 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 상향링크 참조 신호 송신 방법 및 이를 위한 장치 |
KR101487355B1 (ko) * | 2010-07-14 | 2015-01-29 | 블랙베리 리미티드 | 이기종 네트워크에서의 유휴 모드 혼성 이동성 절차 |
KR101702666B1 (ko) * | 2010-07-29 | 2017-02-06 | 삼성전자주식회사 | 무선 통신 시스템에서 상향링크 전력 제어 방법 및 장치 |
US9136953B2 (en) * | 2010-08-03 | 2015-09-15 | Qualcomm Incorporated | Interference estimation for wireless communication |
EP2617145A4 (en) * | 2010-09-14 | 2015-03-11 | Nokia Corp | MEASUREMENT AND INTERFERENCE REPORT FOR DEVICE DEVICE COMMUNICATIONS IN A COMMUNICATION SYSTEM |
US20120069833A1 (en) * | 2010-09-16 | 2012-03-22 | Molnar Karl J | Channel state information reporting for a successively decoded, precoded multi-antenna transmission |
JP2013539304A (ja) * | 2010-09-28 | 2013-10-17 | 富士通株式会社 | マイクロ基地局、マイクロ基地局の干渉協調方法及びユーザ端末 |
US8512481B2 (en) | 2010-10-22 | 2013-08-20 | Presstek, Inc. | Press cleaning with low-VOC solvent compositions |
US20120122472A1 (en) * | 2010-11-12 | 2012-05-17 | Motorola Mobility, Inc. | Positioning Reference Signal Assistance Data Signaling for Enhanced Interference Coordination in a Wireless Communication Network |
US9523096B2 (en) | 2010-12-20 | 2016-12-20 | Matrix Genetics, Llc | Modified photosynthetic microorganisms for producing lipids |
KR101776873B1 (ko) * | 2011-01-11 | 2017-09-11 | 삼성전자 주식회사 | 이동통신 시스템에서 역방향 전송 출력 결정 방법 및 장치 |
CN102111246B (zh) * | 2011-01-12 | 2017-03-29 | 中兴通讯股份有限公司 | 反馈信道状态信息的方法和用户设备 |
GB2487757B (en) * | 2011-02-03 | 2015-11-04 | Nvidia Corp | Apparatus and method for reducing interference |
KR102073027B1 (ko) * | 2011-04-05 | 2020-02-04 | 삼성전자 주식회사 | 반송파 집적 기술을 사용하는 무선통신시스템에서 복수 개의 타임 정렬 타이머 운용 방법 및 장치 |
KR101820678B1 (ko) * | 2011-02-22 | 2018-01-22 | 삼성전자주식회사 | 계층 셀 통신 시스템에서의 계층적 레이트 스플리팅 방법 및 장치 |
WO2012154094A1 (en) * | 2011-05-09 | 2012-11-15 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and arrangements for transmitting and receiving sub - frame specific power offset information |
BR112013028860A2 (pt) * | 2011-05-12 | 2017-01-31 | Ericsson Telefon Ab L M | métodos em estações base, estações base, programas de computador e produtos de programa de computador |
WO2013005948A2 (ko) | 2011-07-04 | 2013-01-10 | 엘지전자 주식회사 | 무선 통신 시스템에서 단말이 상향링크 타이밍을 제어하는 방법 및 이를 위한 장치 |
WO2013007279A1 (en) * | 2011-07-08 | 2013-01-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for handling a downlink transmission in a cellular network |
US20130034085A1 (en) * | 2011-08-05 | 2013-02-07 | Bostroem Lisa | Medium Access Control Timing Advance Group Assignment |
WO2013022470A1 (en) | 2011-08-11 | 2013-02-14 | Intel Corporation | Methods for switching between a mbms download and an http-based delivery of dash formatted content over an ims network |
US8861430B2 (en) * | 2011-08-11 | 2014-10-14 | Mediatek Inc. | Methods of point association for cooperative multiple point transmission |
EP2742748A4 (en) | 2011-08-12 | 2015-08-26 | Intel Corp | SYSTEM AND METHOD FOR UPLINK POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM |
US9008018B2 (en) * | 2011-11-04 | 2015-04-14 | Intel Corporation | Dynamic point selection via a coordinating set of base stations |
US9231723B2 (en) * | 2012-05-11 | 2016-01-05 | Intel Corporation | Coordinated dynamic point selection (DPS) with cell range expansion in a coordinated multipoint (CoMP) system |
-
2011
- 2011-12-16 EP EP11870852.8A patent/EP2742748A4/en not_active Withdrawn
- 2011-12-16 US US13/976,452 patent/US9363780B2/en active Active
- 2011-12-16 WO PCT/US2011/065604 patent/WO2013025236A1/en active Application Filing
- 2011-12-20 CN CN201180073142.5A patent/CN103765968B/zh active Active
- 2011-12-20 JP JP2014525001A patent/JP2014522198A/ja active Pending
- 2011-12-20 CN CN201810795348.2A patent/CN108736920B/zh active Active
- 2011-12-20 BR BR112014002694-7A patent/BR112014002694B1/pt active IP Right Grant
- 2011-12-20 WO PCT/US2011/066212 patent/WO2013025237A1/en active Application Filing
- 2011-12-20 EP EP11870861.9A patent/EP2742755A4/en not_active Withdrawn
- 2011-12-20 IN IN1081CHN2014 patent/IN2014CN01081A/en unknown
- 2011-12-20 RU RU2014107942/07A patent/RU2569932C2/ru active
- 2011-12-20 KR KR1020147004949A patent/KR101546203B1/ko active IP Right Grant
- 2011-12-20 US US13/994,111 patent/US9578616B2/en active Active
- 2011-12-28 RU RU2011154105/08A patent/RU2491628C1/ru not_active IP Right Cessation
-
2012
- 2012-03-30 WO PCT/US2012/031329 patent/WO2013025258A1/en active Application Filing
- 2012-03-30 US US13/992,726 patent/US9807723B2/en active Active
- 2012-03-30 EP EP12824293.0A patent/EP2742619A4/en not_active Withdrawn
- 2012-06-08 US US13/997,238 patent/US20140177427A1/en not_active Abandoned
- 2012-06-08 CN CN201280042294.3A patent/CN103765802B/zh not_active Expired - Fee Related
- 2012-06-08 WO PCT/US2012/041636 patent/WO2013025279A1/en active Application Filing
- 2012-08-03 CN CN201280042293.9A patent/CN103891159B/zh active Active
- 2012-08-03 WO PCT/US2012/049601 patent/WO2013025379A1/en active Application Filing
- 2012-08-03 US US13/994,119 patent/US9271249B2/en active Active
- 2012-08-08 CN CN201280042353.7A patent/CN103765793B/zh active Active
- 2012-08-08 WO PCT/US2012/050007 patent/WO2013025419A1/en active Application Filing
- 2012-08-08 US US13/994,744 patent/US9820250B2/en active Active
-
2016
- 2016-04-07 US US15/093,628 patent/US9999018B2/en active Active
-
2017
- 2017-06-05 US US15/613,818 patent/US10009864B2/en active Active
-
2018
- 2018-12-13 HK HK18115993.5A patent/HK1256892A1/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101427493A (zh) * | 2006-04-21 | 2009-05-06 | 三星电子株式会社 | 用于在无线通信系统中传送和接收信道质量信息的方法和设备 |
CN101601250A (zh) * | 2007-02-02 | 2009-12-09 | Lg电子株式会社 | 利用分组生成参考信号序列的方法 |
US20080232432A1 (en) * | 2007-03-20 | 2008-09-25 | Lee Jung A | non-coherent transmission method for uplink control signals using a constant amplitude zero-autocorrelation sequence |
WO2009041066A1 (ja) * | 2007-09-28 | 2009-04-02 | Panasonic Corporation | 無線通信装置および系列長調整方法 |
WO2009118707A1 (en) * | 2008-03-26 | 2009-10-01 | Nokia Corporation | Reporting channel state information |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105245320A (zh) * | 2015-09-09 | 2016-01-13 | 中国科学院自动化研究所 | LTE上行参考信号的q阶ZC序列的生成方法及装置 |
CN105245320B (zh) * | 2015-09-09 | 2018-11-06 | 北京思朗科技有限责任公司 | LTE上行参考信号的q阶ZC序列的生成方法及装置 |
WO2017219996A1 (zh) * | 2016-06-23 | 2017-12-28 | 华为技术有限公司 | 传输用户序列的方法、网络设备和终端设备 |
CN107548094A (zh) * | 2016-06-23 | 2018-01-05 | 华为技术有限公司 | 传输用户序列的方法、网络设备和终端设备 |
US10848274B2 (en) | 2016-06-23 | 2020-11-24 | Huawei Technologies Co., Ltd. | User sequence transmission method, network device, and terminal device |
CN114747187A (zh) * | 2019-12-10 | 2022-07-12 | 高通股份有限公司 | 生成无线通信的信号序列的技术 |
US11991030B2 (en) | 2019-12-10 | 2024-05-21 | Qualcomm Incorporated | Techniques for generating signal sequences for wireless communications |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103765802A (zh) | 用于lte上行链路参考信号的截短的zadoff-chu序列 | |
US11716120B2 (en) | Method and apparatus for allocating and processing sequences in communication system | |
CN109039965A (zh) | 参考信号的传输方法和传输装置 | |
CN103004114A (zh) | 对符号格式化以便进行传输的技术 | |
WO2019028793A1 (zh) | 随机接入前导码传输方法及装置 | |
CN102474473A (zh) | 有助于无线通信中的噪声估计 | |
US20130301606A1 (en) | Load aware resource allocation in wireless networks | |
CN110383703A (zh) | 用于初始接入的波束索引参考信号设计的系统和方法 | |
US20180184432A1 (en) | Device and method for transmitting and receiving control information in wireless communication system | |
US10594528B2 (en) | Method and apparatus for sequence generation | |
WO2019029548A1 (zh) | 传输同步信号的方法和装置 | |
CN109802754A (zh) | 一种数据上报方法、接收方法和相关装置 | |
WO2021109108A1 (zh) | 通信方法和装置 | |
CN112752351A (zh) | 基于序列的信号传输的方法和通信装置 | |
CN102571667A (zh) | 在发射系统中进行功率分配的方法和系统 | |
US20220255781A1 (en) | Data processing method and apparatus | |
CN109039395B (zh) | 波束选择方法及装置 | |
WO2020024229A1 (zh) | 频域位置确定方法、装置及设备 | |
TW202241174A (zh) | 用於探測參考訊號之部分探測方法及其使用者設備 | |
CN112136300A (zh) | 通信方法、通信设备和网络设备 | |
CN111181884B (zh) | 参考信号发送方法和设备 | |
US11382077B2 (en) | PUCCH transmission method, terminal and network-side device | |
CN110062473B (zh) | 随机接入方法、终端设备和网络设备 | |
JP6669278B2 (ja) | リソースマッピング方法、装置及び通信システム | |
WO2024032693A1 (zh) | 探测参考信号的传输方法及装置、终端、网络设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20180608 |
|
CF01 | Termination of patent right due to non-payment of annual fee |