CN105099624A - 一种方法及基站 - Google Patents
一种方法及基站 Download PDFInfo
- Publication number
- CN105099624A CN105099624A CN201510633879.8A CN201510633879A CN105099624A CN 105099624 A CN105099624 A CN 105099624A CN 201510633879 A CN201510633879 A CN 201510633879A CN 105099624 A CN105099624 A CN 105099624A
- Authority
- CN
- China
- Prior art keywords
- channel
- base station
- feedback
- interfere information
- troop
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 description 38
- 239000000969 carrier Substances 0.000 description 18
- 230000008569 process Effects 0.000 description 17
- 238000012163 sequencing technique Methods 0.000 description 15
- 230000008859 change Effects 0.000 description 14
- 238000004364 calculation method Methods 0.000 description 8
- 238000001228 spectrum Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 241000931705 Cicada Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- 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
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
- H04J11/003—Interference mitigation or co-ordination of multi-user interference at the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
-
- 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
- H04L1/0005—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to payload information
-
- 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
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- 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
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
- H04L1/0011—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to payload information
-
- 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
- H04L1/0025—Transmission of mode-switching 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
- H04L1/0001—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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0079—Formats for control data
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
-
- 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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
-
- 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
- H04L5/0037—Inter-user or inter-terminal 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- 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
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
-
- 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
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
-
- 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
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
-
- 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
- H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
本发明公开了一种方法及基站,该方法包括:基站在第一时间传送至少第一导频符号以测量至少第一导频符号以及获得用于多个正交频分多址(OFDMA)副载波的第一信道和干扰信息;基站接收第一反馈,第一反馈的接收包括接收与多个群集的每个群集相关联的调制和编码速率的第一指示;至少基于第一反馈的接收,基站传送由基站选择的供用户单元使用的第一分配;在第二时间向用户单元传送至少第二导频符号以测量至少第二导频符号以及获得用于多个OFDMA副载波的第二信道和干扰信息;基站接收第二反馈,第二反馈的接收包括接收第二指示;至少基于第二反馈的接收,向用户单元传送由基站选择的供用户单元使用的第二分配。
Description
本申请是申请号为201210378025.6、母案申请号为01820652.2,申请日为2001年12月13日,发明名称为“一种用于在OFDMA***中分配副载波的方法及设备”的中国发明专利申请的分案申请。
本申请是申请号为01820652.2,申请日为2001年12月13日,发明名称为“具有自适应群集配置和交换的多载波通信”的中国发明专利申请的分案申请。
本专利申请是2000年12月15日提交的,其名称为“具有自适应副载波群集匹配和选择加载的OFDMA”,序号为09/738086的专利申请的部分继续申请(CIP)。
技术领域
本发明涉及无线通信领域;本发明尤其涉及一种使用正交频分复用(OFDM)的多小区、多用户设备无线***。
背景技术
正交频分复用(OFDM)是一种对频率选择信道上信号传输进行有效调制的方案。在OFDM中,一个宽带宽被分成多个窄带副载波,这些副载波被安排成相互正交。副载波上调制的信号被并行发射。更多的信息可参见Cimini,Jr的“使用正交频分复用的数字移动信道的分析和仿真”,IEEETrans.Commun.,Vol.COM-33,no.7,1985年7月,pp.665-75;ChuangandSollenberger的“超3G:基于OFDM和动态分组分配的宽带无线数据接入”,IEEECommunicationsMagazine,Vol.38,No.7,PP.78-87,2000年7月。
使用OFDM支持多用户设备多址的一种方式完成时分多址(TDMA),其中每个用户设备使用所分配的时隙内的所有副载波。正交频分多址(OFDMA)是使用OFDM基本格式的另一种多址方法。在OFDMA中,多个用户设备以类似于频分多址(FDMA)的方式同时使用不同的副载波。更多的信息可参见Sari和Karamd的“正交频分多址和其对CATV网络的应用”EuropeanTransactionsonTelecommunications,9卷(6)507-516页,1998年11月/12月;和Nogueroles,Bossert,Donder和Zyablov的“随机OFDMA移动通信***的改进性能”,ProceedingsofIEEEVTC’98,2502-2506页。
多径造成频率选择性衰落。对于不同的副载波,信道增益是不同的。此外,对于不同的用户设备,诸多信道通常是不相关的。一个用户设备的处于深衰落的副载波可以为另一个用户设备提供高信道增益。因此,它在一个OFDMA***中的有利方面是,将副载波自适应地分配给多个用户设备,使每个用户设备享有高信道增益。更多的信息可参见Wong等人的“具有自适应副载波、比特和功率分配的多用户设备OFDM”,IEEEJ.Select.AreasCommun.,卷17(10),1747-1758页,1999年10月。
在一个小区内,可以调整诸多用户设备使其在OFDMA中具有不同的副载波。不同用户设备的信号可以被正交,使其只有很少的小区间干扰。然而,对于积极的频率重用计划,例如,相同频谱用于多个邻近小区时,就会出现小区间干扰的问题。显然,一个OFDMA***中的小区间干扰也是频率选择性的,它有利于自适应地分配副载波,以便减轻小区间干扰的影响。
OFDMA的副载波分配的一个方案是联合最佳化操作,不仅需要所有小区中的所有用户设备的活动和信道知识,而且还需要在一个现有用户设备每次离开网络或者一个新的用户设备每次加入网络时进行频繁的调度。这在实际的无线***中通常是不切合实际的,其主要原因是更新副载波信息的带宽成本和联合最佳化的计算成本等因素。
发明内容
本发明公开了在一个正交频分多址(OFDMA)***中分配副载波的方法和设备。在一个实施例中,所述方法包括把副载波的至少一个分集群集分配给第一用户设备,以及把至少一个相干群集分配给第二用户设备。
本发明提供了一种用于在正交频分多址(OFDMA)***中分配副载波的方法,所述方法包括:从第一用户站台和第二用户站台中的每一个接收关于群集信号干扰噪声比(SINR)值的SINR信息,所述SINR信息根据所述第一用户站台和第二用户站台接收的导频符号而被确定;以及响应于接收所述SINR信息,向所述第一用户站台和第二用户站台中的每一个分配副载波,其中所述分配包括:向所述第一用户站台分配副载波的至少一个分集群集;以及向所述第二用户站台分配至少一个相干群集,以使与所述第一用户站台和第二用户站台的通信能够通过同时分别使用所述至少一个分集群集和所述至少一个相干群集而发生;其中所述至少一个相干群集包括相互接近的多个副载波,所述至少一个分集群集包括多个非连续副载波,所述多个非连续副载波的至少一些非连续副载波在频谱上相距很远。
本发明提供了一种用于在正交频分多址(OFDMA)***中分配副载波的方法,所述方法包括:从用户站台接收关于群集信号干扰噪声比(SINR)值的SINR信息以及所述用户站台预期使用的特定编码和调制速率的指示,所述SINR信息根据分析所述用户站台接收的导频符号而被确定;信道/干扰变化检测器基于所述接收的SINR信息的差异来确定所述用户站台具有大于还是小于门限值的信道时间差异;基于所述确定以及响应所述接收所述SINR信息,向所述用户站台分配副载波,所述分配包括:如果确定所述用户站台的所述信道时间差异大于所述门限值,则向所述用户站台分配副载波的至少一个分集群集;以及如果确定所述用户站台的所述信道时间差异小于所述门限值,则向所述用户站台分配副载波的至少一个相干群集;其中所述至少一个相干群集包括相互接近的多个副载波,而所述至少一个分集群集包括多个非连续副载波,所述多个非连续副载波中的至少一些非连续副载波在频谱上相距很远;以及基于所接收的所述用户站台预期使用的所述特定编码和调制速率的指示,以所述特定编码和调制速率向所述用户站台发送所述被分配的副载波。
本发明提供了一种用于在正交频分多址(OFDMA)***中分配副载波的设备,所述设备包括:收发信机,适用于从第一用户站台和第二用户站台中的每一个接收关于群集信号干扰噪声比(SINR)值的SINR信息,所述SINR信息根据所述第一用户站台和第二用户站台接收的导频符号而被确定;以及控制器,适用于响应于接收所述SINR信息,通过下述操作向所述第一用户站台和第二用户站台中的每一个分配副载波:向所述第一用户站台分配副载波的至少一个分集群集;以及向所述第二用户站台分配至少一个相干群集,以使与所述第一用户站台和第二用户站台的通信能够通过同时分别使用所述至少一个分集群集和所述至少一个相干群集而发生;其中所述至少一个相干群集包括相互接近的多个副载波,所述至少一个分集群集包括多个非连续副载波,所述多个非连续副载波中的至少一些非连续副载波在频谱上相距很远。
本发明提供了一种用于在正交频分多址(OFDMA)***中分配副载波的设备,所述设备包括:收发信机,适用于从用户站台接收关于群集信号干扰噪声比(SINR)值的SINR信息以及所述用户站台预期使用的特定编码和调制速率的指示,所述SINR信息根据分析所述用户站台接收的导频符号而被确定,并且所述收发信机适用于基于所接收的所述用户站台预期使用的所述特定编码和调制速率的指示,以特定编码和调制速率向所述用户站台发送所述被分配的副载波;控制器,适用于通过信道/干扰变化检测器基于所述接收的SINR信息的差异确定所述用户站台具有大于还是小于门限值的信道时间差异,并且基于所述确定以及响应所述接收所述SINR信息,通过下述操作向所述用户站台分配副载波:如果确定所述信道时间差异大于所述门限值,则向所述用户站台分配副载波的至少一个分集群集;以及如果确定所述信道时间差异小于所述门限值,则向所述用户站台分配副载波的至少一个相干群集;其中所述至少一个相干群集包括相互接近的多个副载波,而所述至少一个分集群集包括多个非连续副载波,所述多个非连续副载波中的至少一些非连续副载波在频谱上相距很远。
附图说明
从下面给出的详细说明和本发明各个实施例的附图中可以更加充分的理解本发明,然而,这些说明不应当被理解为将本发明限制到具体实施例,而仅仅是用于解释和理解。
图1A示出了多个副载波和多个群集;
图1B是分配多个副载波的处理过程的一个实施例的流程图;
图2示出了OFDM符号、导频和群集的时间和频率栅格;
图3示出了用户设备的处理过程;
图4示出了图3的一个实例;
图5示出了任意群集反馈的格式的一个实施例;
图6示出了将群集分成组的一个实施例;
图7示出了基于组的群集分配的反馈格式的一个实施例;
图8示出了多小区、多扇区网络中的频率重用和干扰;
图9示出了相干群集和分集群集的不同群集格式;
图10示出了具有副载波跳跃的分集群集;
图11示出了依赖于副载波移动性在分集群集与相干群集之间的智能交换;
图12示出了群集分类的重新配置的一个实施例;
图13示出了基站的一个实施例。
具体实施方式
本发明公开了在一个正交频分多址(OFDMA)***中分配副载波的方法和设备。在一个实施例中,所述方法包括把副载波的至少一个分集群集分配给第一用户设备,以及把至少一个相干群集分配给第二用户设备。
下面使用作为一个实例的OFDMA(群集)解释这里所公开的技术。然而,这些技术不限于基于OFDMA的***。这些技术通常适用于多载波***,例如,在多载波***中,载波可以是OFDMA中的群集,CDMA中的扩频码,SDMA(空分多址)中的天线波束等。在一个实施例中,在每个小区中分别执行副载波分配。在每个小区中,当每个新用户设备加入***时还渐进地进行各用户设备(例如,移动用户设备)的分配,以反抗每个小区内的用户设备联合分配,其中在每个小区中,考虑每个分配的一个小区中所有用户设备来进行分配判决。
对于下行信道,每个用户设备首先测量所有副载波的信道和干扰信息,然后选择具有良好特性(例如,高信干噪声比(SINR))的多个副载波,并且把关于这些候选副载波的信息反馈给基站。反馈可以包括所有副载波或者只有一部分副载波的信道和干扰信息(例如,信干噪声比信息)。在仅提供有关仅仅是一部分副载波的信息的情况下,用户设备可以提供一个从这些用户设备预期使用的副载波开始定序的副载波列表,通常是因为这些副载波性能比其它副载波优良或更好。
一旦从用户设备收到该信息,基站就利用基站上可用的附加信息进一步从候选者中选择副载波。例如,这些附加信息是每个副载波的业务负荷信息,用于每个频带的在基站上排队的业务请求量,不论该频带是否被过度使用,和/或用户设备已经等待多长时间来发送信息。在一个实施例中,邻近小区的副载波加载信息还可以在基站之间交换。基站可以使用副载波分配中的该信息减少小区间干扰。
在一个实施例中,分配信道的基站基于反馈进行的选择,导致编码/调制速率的选择。当指定所发现的适于使用的副载波时,用户设备可以指定这样的编码/调制速率。例如,如果SINR小于某一阈值(例如,12dB),则使用四相移键控(QPSK)调制;否则,使用16正交振幅调制(QAM)。然后基站将副载波分配和使用的编码/调制速率通知给用户设备。
在一个实施例中,将下行链路副载波的反馈信息经由上行链路接入信道发送给基站,这种情况在每个发送时隙的一个短时段(例如每10毫秒时隙中的400微秒)发生。在一个实施例中,接入信道占用整个频率宽带。然后,基站可以从接入信道中直接收集每个副载波的上行链路SINR。上行链路副载波的SINR以及业务负荷信息被用于上行链路副载波分配。
对于任何一个方向,基站进行每个用户设备的副载波分配的最终判决。
在下面的说明中,还公开了选择性副载波分配的过程,包括信道和干扰检测的方法,信息从用户设备反馈到基站的方法,以及基站使用的用于副载波选择的算法。
在下面的说明中,公开了大量的细节,以提供对本发明的充分理解。然而,本领域的熟练技术人员将会明白,没有这些具体细节也可以实施本发明。在其它示例中,以方框图形式,而不是具体的形式示出了公知的结构和装置,以便于理解本发明。
下面的详细说明的某些部分是以计算机存储器中对数据比特操作的算法和符号表示的术语给出的。这些算法说明和表示是数据处理领域中的熟练技术人员使用的工具,以便把他们的工作最有效地传达给本领域的熟练技术人员。一个算法在这里通常被表达为导致预期结果的诸多步骤的有条理的顺序。这些步骤是需要实际管理物理量的那些步骤。通常(尽管不是必需的),这些物理量取能够被存储、传递、组合、比较和管理的电或磁信号的形式。业已证明,将这些信号称之为比特、数值、元素、符号、字符、期限、数目或类似物有时是非常便利的,这主要出于公共应用的原因。
然而应当记住,所有这些术语和类似术语都与适当的物理量相联系,并且只是适用于这些物理量的方便标记。除非特别声明与下面的说明明显不同,在整个说明中,利用术语“处理”或者“演算”或者“计算”或者“确定”或者“显示”等的讨论涉及计算机***或者类似电计算装置的动作和处理,所述计算机***管理计算机***的寄存器和存储器内的代表物理(电子)量的数据,并将该数据转换成计算机***存储器或寄存器或其它这样的信息存储、传输或显示装置内的同样代表物理量的其它数据。
本发明还涉及执行此操作的设备。该设备可以为所需目的专门构造,或者可以包括一个由计算机中存储的计算机程序选择性激励或者重新配置的通用计算机。这样的一种计算机程序可以被存储在计算机可读存储介质中,该存储介质可以是,例如,但不限于,包括软盘、光盘、CD-ROM和磁光盘的任何盘,只读存储器(ROM),随机存储存储器(RAM),EPROM,EEPROM,磁或光卡,或者适合于存储电子指令的任何类型的介质,并且每个存储介质连接计算机***总线。
这里所述的算法和显示不一定涉及任何特定的计算机或者其它设备。各种通用***可以与这里的教导的程序一起使用,或者它可以证明便于构造更专用的执行所需方法步骤的设备。用于各种这类***的所需结构将会从下面的说明中得知。此外,本发明不结合任何特殊编程语言进行说明。人们将会明白各种编程语言可以用来实施这里所述的本发明的教导。
机器可读介质包括以机器(例如,一个计算机)可读的格式存储或者发射信息的任何机构。例如,机器可读介质包括只读存储器(“ROM”);随机存取存储器(“RAM”);磁盘存储介质;光存储介质;闪存装置;传播信号(例如,载波,红外线,数字信号等)的电、光、声或其它形式等。
副载波群集
这里所述的技术针对数据业务信道的副载波分配。在一个蜂窝***中,通常存在为控制信息交换和其它目的预分配的其它信道。这些信道经常包括下行链路和上行链路控制信道,上行信道接入信道,和时间及频率同步信道。
图1A示出了多个副载波,比如副载波101和群集102。一个群集,比如群集102被定义为一个逻辑单元,如图1A所示,它至少包含一个物理副载波。群集可以包含连续的或者不相交的副载波。一个群集与它的副载波之间的映射可以是固定的或者可以是可重新配置的。在后一种情况下,基站在群集被重新定义时通知用户设备。在一个实施例中,频谱包括512个副载波,以及每个群集包括四个连续的副载波,从而导致128个群集。
一个示范性副载波/群集分配过程
图1B是向用户设备分配群集的处理的一个实施例的流程图。该处理通过处理逻辑执行,所述处理逻辑可以包括硬件(例如,专用逻辑,电路等),软件(比如在通用计算机或者专用机器上运行的软件),或者两者的组合。
参见图1B,每个基站向它的小区(或扇区)内的每个用户设备周期性地广播导频OFDM符号(处理块101)。导频符号通常被称作探测序列或者信号,该导频符号对于基站和用户设备是确知的。在一个实施例中,每个导频符号覆盖整个OFDM频率带宽。对于不同小区(或扇区),导频符号可以是不同的。导频符号可以服务多种目的:时间和频率同步,信道估算和用于群集分配的信干噪声比(SINR)测量。
每个用户设备随后连续监视导频符号的接收,并测量每个群集的SINR和/或其它参数,包括小区间干扰和小区内业务(处理块102)。基于该信息,每个用户设备选择一个或多个相互比较具有良好性能(例如,高SINR和低业务负荷)的群集,并且经由预定上行接入信道向基站反馈关于这些候选群集的信息(处理块103)。例如,高于10dB的SINR值可以显示良好性能。同样,小于50%的群集利用因子可以显示良好性能。每个用户设备选择具有比其它群集更好性能的群集。该选择导致每个用户设备根据测量参数选择他们愿意使用的群集。
在一个实施例中,每个用户设备测量每个副载波群集的SINR,并经由接入信道向他们的基站报告这些SINR测量。SINR值可以包括群集中每个副载波的SINR值的平均。作为选择,群集的SINR值可以是该群集中副载波的SINR值中最坏的SINR。在另一个实施例中,群集中副载波的SINR值的加权平均被用来生成群集的SINR值。在施加于用户设备的加权也许是不同的分集群集中,这也许特别有用。
从每个用户设备到基站的信息反馈包括用于每个群集的SINR值,并且还指示用户设备预期使用的编码/调制速率。不需要使用群集索引来指示反馈的SINR值对应于哪个群集,只要反馈的信息顺序对基站是已知的即可。在一个可替代的实施例中,根据哪个群集对于用户设备具有彼此相对最佳性能,对反馈的信息定序。在这样一种情况下,需要使用一个索引指示伴随的SINR值相对应于哪个群集。
一旦收到来自用户设备的反馈,基站从候选群集中进一步选择一个或多个群集(处理块104)。基站可以利用基站上可用附加信息,例如每个副载波的业务负荷信息、基站上排队的用于每个频带的业务请求量,不论该频带是否过度使用,以及用户设备已经等待多长时间发送信息。还可以在基站之间交换相邻小区的副载波加载信息。基站可以使用副载波分配的该信息减少小区间干扰。
在群集选择之后,如果已经建立了对用户设备的连接,基站就经由下行公共控制信道或者经由专用下行业务信道把该群集分配通知给用户设备(处理块105)。在一个实施例中,基站还把适当的调制/编码速率通知给用户设备。
一旦建立了基本通信链路,每个用户设备就可以使用专用业务信道(例如,一个或多个预定的上行接入信道)向基站连续发送反馈信息。
在一个实施例中,基站同时分配所有的将由用户设备使用的群集。在一个可替换实施例中,基站首先分配多个群集,在此称之为基本群集,以建立基站与用户设备之间的数据链路。然后,基站相继发送更多的群集(在此称之为辅助群集)给用户设备,以增加通信带宽。可以把较高的优先级给予基本群集的分配,以及可以把较低的优先级给予辅助群集的分配。例如,基站首先确保对用户设备的基本群集的分配,然后再试着满足来自用户设备的关于辅助群集的进一步请求。作为选择,基站可以在分配基本群集给其它用户设备之前,向一个或多个用户设备分配辅助群集。例如,基站在向其它用户设备分配任何群集之前,可以向一个用户设备分配基本和辅助群集。在一个实施例中,基站向一个新用户设备分配基本群集,然后确定是否有请求群集的任何其它用户设备。如果没有,基站则向新用户设备分配辅助群集。
有时,处理逻辑通过重复上述处理来执行再训练(处理块106)。再训练可以被周期地执行。该再训练可以抵偿用户设备移动以及任何干扰变化。在一个实施例中,每个用户设备向基站报告它的群集更新选择和相关联的SINR。然后基站进一步执行再选择,并把新的群集分配通知给用户设备。再训练可以由基站启动,在此情况下,基站请求一个特定用户设备报告它的更新的群集选择。当用户设备观测到信道恶化时,用户设备也可以启动再训练。
自适应调制和编码
在一个实施例中,不同的调制和编码速率被用来支持在具有不同SINR的信道上的可靠传输。多个副载波上的信号扩展还可以用来在非常低SINR情况下提高可靠性。
一个实例性编码/调制表在下面的表1中给出。
表1
方案 | 调制 | 码速率 |
0 | QPSK,1/8扩展 | 1/2 |
1 | QPSK,1/4扩展 | 1/2 |
2 | QPSK,1/2扩展 | 1/2 |
3 | QPSK | 1/2 |
4 | 8PSK | 2/3 |
5 | 16QAM | 3/4 |
6 | 64QAM | 5/6 |
在上面的实例中,1/8扩展表示在8个副载波上重复一个QPSK调制符号。重复/扩展也可以扩大到时域。例如,可以在两个OFDM符号的四个副载波上重复一个QPSK符号,也得到1/8扩展。
在初始群集分配和速率选择之后,可以根据接收机上观测到的信道条件自适应地改变编码/调制速率。
导频符号和SINR测量
在一个实施例中,每个基站同时发射多个导频符号,而每个导频符号占据整个OFDM频率带宽,如图2A-C所示。再参见图2A-C,导频符号201被显示为分别横越用于小区A、B和C的整个OFDM频率带宽。在一个实施例中,每个导频符号具有一个128微秒的长度或者时段与一个保护时间,其组合近似152微秒。每个导频时段之后,具有预定数量的数据时段,后面是另一组导频符号。在一个实施例中,在每个导频之后,具有用来发送数据的4个数据时段,每个数据时段为152微秒。
用户设备依据导频符号估算用于每个群集的SINR。在一个实施例中,用户设备首先估算包括振幅和相位的信道响应,仿佛不存在干扰或噪声。一旦信道被估算,用户设备就依据接收的信号计算干扰/噪声。
可以从最大到最小SINR排列所估算的SINR值的顺序,并选择具有大SINR值的群集。在一个实施例中,所选择的群集具有大于最小SINR的SINR值,该最小SINR值仍然允许***所支持的可靠(即使低速率)传输。所选择的群集的数量可依赖于反馈的带宽和请求的传输速率。在一个实施例中,用户设备总是试着发送基站选择的尽可能多的群集的信息。
所估算的SINR值还用来选择如上述讨论的用于每个群集的合适的编码/调制速率。通过使用一个合适的SINR索引方案,SINR索引还可以指示用户设备预期使用的一个特定编码和调制速率。需要说明的是,即使对于相同用户设备,不同的群集可能具有不同的调制/编码速率。
导频符号服务于确定小区中干扰的附加目的。由于相同时间广播多个小区的导频,因此这些导频将相互干扰(由于它们占据整个频带)。该导频符号的碰撞可以用来确定最坏情形的干扰量。因此,在一个实施例中,使用该方法的上述SINR估算是稳妥的,其中所测量的干扰电平是最坏的情形(假定所有干扰源都发射)。这样,导频符号的结构使它占据了整个频带,由此造成不同小区之中的碰撞,以供检测分组传输***中最坏SINR之用。
在数据业务时段期间,用户设备可以再次确定干扰的电平。数据时段被用来确定小区内业务以及小区间干扰电平。特别是,导频和业务时段期间的功率差可以被用来检测(小区间)业务加载和小区间干扰,以选择预期群集。
某些群集的干扰电平可能较低,因为这些群集可能未在相邻小区中使用。例如,在小区A中,对于群集A干扰小,因为群集A未在小区B中使用(而是在小区C中使用)。同样,在小区A中,群集B经历来自小区B的较低干扰,因为群集B在小区B中使用,但未在小区C中使用。
基于该估算的调制/编码速率强化了(robust)突发分组传输导致的经常性干扰变化。这是因为速率预测以所有干扰源正在发射的最坏情况为基础。
在一个实施例中,用户设备利用从导频符号时段和数据业务时段得到的信息,分析小区内业务负荷和小区间干扰的存在。用户设备的目的是向基站提供关于用户设备预期使用那些群集的指示。在理想情况下,用户设备选择的结果是具有高信道增益、来自其它小区的低干扰以及高可用性的群集。用户设备提供反馈信息,它包括按顺序列出预期的群集的结果,或者包括这里没有说明的信息。
图3示出了用户设备处理的一个实施例。该处理通过处理逻辑执行,所述处理逻辑可以包括硬件(例如,专用逻辑,电路等),软件(比如在通用计算机或者专用机器上运行的软件),或者两者的组合。
参见图3,信道/干扰估算处理块301在导频时段响应导频符号执行信道和干扰估算。业务/干扰分析处理块302在数据时段响应信号信息和来自信道/干扰估算块301的信息执行业务和干扰分析。
群集定序和速率预测处理块303连接信道/干扰估算处理块301和业务/干扰分析处理块302的输出,以执行群集定序和选择以及速率预测。
群集定序处理块303的输出被输入到群集请求处理块304,请求群集和调制/编码速率。这些选择的指示被发送到基站。在一个实施例中,经由接入信道向基站报告每个群集的SINR。该信息用于群集选择,以避免具有重小区内业务加载和/或来自其它小区的强干扰的群集。也就是说,如果相对于一个特定群集已经存在重小区内业务加载,那么一个新用户设备不分配该特定群集的使用。此外,如果干扰非常强以致SINR仅仅允许低速率传输或者完全没有可靠的传输,那么可以不分配群集。
处理块301通过监视由于在多个小区中同时广播的全带宽导频符号而生成的干扰来执行信道/干扰估算,在本领域中是公知的。该干扰信息被传送到处理块302,该处理块使用下列信息求解下式:
HiSi+Ii+ni=yi
其中,Si代表副载波(频带)i的信号,Ii是副载波i的干扰,ni是与副载波i相关联的噪声,yi是副载波i的观测。在512个副载波情况下,i可以是0至511。Ii和ni不能分离,可以被考虑为一个量值。干扰/噪声和信道增益Hi是未知的。在导频时段,代表导频符号的信号Si和观测yi是可知的,因而对于没有干扰和噪声的情况,允许确定信道增益Hi。一旦知道信道增益Hi,就可以把它带入式中,以确定数据时段期间的干扰/噪声,因为此时Hi、Si和yi都是已知的。
来自处理块301和302的干扰信息由用户设备使用以选择预期的群集。在一个实施例中,使用处理块303,使用户设备确定群集的次序,并且还预测使用这种群集的将是可用的数据速率。预测的数据速率信息可以从具有预先计算的数据速率值的查找表中得到。这样一个查找表可以存储成对的每个SINR和其相关联的预期传输速率。基于该信息,用户设备根据预定参数标准选择他预期使用的群集。用户设备使用定序的群集列表请求预期的群集与用户设备知道的编码和调制速率,以实现预期的数据速率。
图4是基于功率差选择群集的设备的一个实施例。该方案使用在导频符号时段和数据业务时段期间得到的信息执行能量检测。图4的处理可以用硬件(例如,专用逻辑,电路等)、软件(比如在通用计算机***或者专用机器上运行的软件)、或者两者结合实现。
参见图4,一个用户设备包括:SINR估算处理块401,以在导频时段执行每个群集的SINR估算;功率计算块402,以在导频时段执行每个群集的功率计算;和功率计算处理块403,以在数据时段执行每个群集的功率计算。减法器404从处理块402的导频时段的功率计算中减去处理块403的数据时段的功率计算。减法器404的输出被输入到功率差定序(和组选择)处理块405,以便根据SINR和导频时段与数据时段间的功率差执行群集定序和选择。一旦已经选择了群集,用户设备采用处理块406请求所选择的群集和编码/调制速率。
更具体地说,在一个实施例中,根据下式,将导频时段期间的每个群集的信号功率与业务时段期间的信号功率进行比较:
PP=PS+PI+PN,
其中,PP是在导频时段期间对应于每个群集的被测量功率,PD是业务时段期间的被测量功率,PS是信号功率,PI是干扰功率,PN是噪声功率。在一个实施例中,用户设备选择具有较大PP/(PP-PD)(例如,大于比如10dB的阈值)的群集,并且避免具有可能的低PP/(PP-PD)(例如,低于比如10dB的阈值)的群集。
作为选择,所述差值可以以用于一个群集的每个副载波的导频时段期间和数据业务时段期间所观测的样值之间的能量差为基础,比如下式:
这样用户设备可以对所有副载波的差值求和。
根据实际实施,用户设备可以使用以下标准,SINR和PP-PD的组合函数,以选择群集:
β=f(SINR,PP/(PP-PD))
其中,f是两个输入的函数,f的一个实例是加权的平均(例如,相等的加权)。作为选择,用户设备根据其SINR选择群集,并且仅使用功率差PP-PD来辨别具有同样SINR的群集。该差值可以小于阈值(例如,1dB)。
SINR和PP-PD两者的测量可以在时间上平均,以减少差异并提高精度。在一个实施例中,使用一个移动平均时间窗,该时间窗长得足以使统计异常达到平均数,而且短得又足以捕获信道和干扰的时变性质,例如1微秒。
下行链路群集分配的反馈格式
在一个实施例中,对于下行链路,反馈包含所选择的群集和它们的SINR的索引。图5示出了任意群集反馈的一个示例性格式。参见图5,用户设备提供一个指示群集和它的相关联的SINR值群集索引(ID)。例如,在反馈中,用户设备提供:群集ID1(501)和用于该群集的SINR,SINR1(502);群集ID2(503)和用于该群集的SINR,SINR2(504);群集ID3(505)和用于该群集的SINR,SINR3(506),等。群集的SINR可以使用副载波的SINR的平均来建立。因此,多个任意群集可以被选择为候选者。如上所述,还可以在反馈中对所选择的群集定序,以指示优先级。在一个实施例中,用户设备可以形成一个群集的优先级列表,并以优先级递减顺序回送SINR信息。
通常,不是SINR本身,而是SINR等级的索引足以指示群集的适当编码/调制。例如,3比特字段可以用于SINR索引,以指示8个自适应编码/调制的不同速率。
一个示例性基站
基站向提出请求的用户设备分配预期群集。在一个实施例中,分配给用户设备的群集的可用性依赖于群集的总业务负荷。因此,基站选择不仅具有高SINR而且还具有低业务负荷的群集。
图13是基站的一个实施例的方框图。参见图13,群集分配和负荷调度控制器1301(群集分配器)收集所有必要信息,包括为每个用户设备指定的群集的下行/上行SINR(例如,经由从OFDM收发信机1305接收的SINR/速率索引信号1313)和用户数据、队列充满/业务负荷(例如,经由来自多用户数据缓存器1302的用户数据缓冲信息1311)。控制器1301使用该信息作出用于每个用户的群集分配和负荷调度的判决,并且把判决信息存储到存储器(未示出)中。控制器1301经由控制信号信道将判决通知给用户设备(例如,经由OFDM收发信机1305的控制信号/群集分配1312)。控制器1301在再训练期间更新该判决。
在一个实施例中,控制器1301还执行用户接入的允许控制,因为它知道***的业务负荷。这可以通过使用允许控制信号1310控制用户数据缓存器1302来实现。
用户1~N的分组数据被存储在用户数据缓存器1302中。对于下行链路,多路复用器1303借助控制器1301的控制将用户数据装载到等待发送的群集数据缓存器(用于群集1~M)。对于上行链路,多路复用器1303将群集缓存器中的数据发送给相应的用户缓存器。群集缓存器1304存储将要经由OFDM收发信机1305(用于下行链路)发送的信号和从收发信机1305接收的信号。在一个实施例中,每个用户可以占用多个群集,每个群集可以被多个用户共享(以时分复用方式)。
基于组的群集分配
在另一个实施例中,对于上行链路,将群集划分成多个组。每个组可以包括多个群集。图6示出了一个示例性的划分。参见图6,组1-4用指向作为划分结果的位于每个组中的群集的箭头显示。在一个实施例中,每个组中的多个群集在整个带宽上相距很远。在一个实施例中,每个组中的多个群集之分离远大于信道相干带宽,即,信道响应大致保持相同的带宽。相干带宽的典型值对于许多蜂窝***为100kHz。这改善了每个组中的频率分集,并增加了一个组内至少某些群集可以提供高SINR的概率。这些群集可以按组分配。
基于组的群集分配的目的包括群集索引的数据比特,从而减少了群集分配的反馈信道(信息)和控制信道(信息)的带宽需求。基于组的群集分配还可以用来减少小区间干扰。
在收到来自基站的导频信号后,用户设备同时或者顺序地反送一个或多个群集组的信道信息。在一个实施例中,只有某些组的信息被反送到基站。许多标准可以用来根据信道信息、小区间干扰电平和每个群集的小区内业务负荷来选择和定序多个组。
在一个实施例中,用户设备首先选择具有最好总性能的组,然后反馈该组中的群集的SINR信息。用户设备可以根据SINR高于预定阈值的群集数量定序多个组。通过顺序发送该组中所有群集的SINR,只需要发送组索引,而不需要发送所有群集索引。因此,每个组的反馈通常包含两类信息:组索引和该组内的每个群集的SINR值。图7示出了指示基于群集分配的一个示例性格式。参见图7,组ID、ID1后面是该组中每个群集的SINR值。这可以显著地减少反馈的开销。
一旦收到来自用户设备的反馈信息,基站上的群集分配器从一个或者多个组中选择多个群集,如果可以得到的话,然后向用户设备分配这些群集。该选择可以通过基站的媒体接入控制部分的指定来实现。
此外,在小区间干扰环境中,多个组具有与不同小区相关联的不同优先级。在一个实施例中,用户设备的一个组的选择通过组优先级来偏移,这意味着某些用户设备具有比其它用户设备更高的某些组应用的优先级。
在一个实施例中,在一个用户设备与一个群集组之间没有固定的联系;然而,在一个可替代实施例中,可以有这样一个固定联系。在用户设备与一个或者多个群集组之间存在固定联系的实施中,可以省略反馈信息的组索引,因为通过默认用户设备和基站得知了该信息。
在另一个实施例中,从基站发送到用户设备的导频信号还指示每个群集的可用性,例如,导频信号显示哪些群集已经分配给其它用户设备和哪些群集可以用于新的分配。例如,基站可以在指示一个群集是可用的群集的多个副载波上发射导频序列11111111,和发送指示群集是不可用的导频序列1111-1-1-1-1。在接收机上,用户设备首先使用本领域公知的信号处理方法例如相关方法辨别这两个序列,然后估算信道和干扰电平。
借助该信息与用户设备获得的信道特征的组合,用户设备可以把实现高SINR和良好负荷平衡的多个组列入优先地位。
在一个实施例中,用户设备通过使用纠错码保护反馈信息。在一个实施例中,使用源编码技术例如差分编码压缩反馈中的SINR信息,然后通过信道码进行编码。
图8显示了用于一个示例性蜂窝设置的频率重用图案的一个实施例。每个小区具有在基站上使用定向天线的6个扇区的六边形结构。在小区之间,频率重用因子是1。在每个小区内频率重用因子是2,其中扇区交替使用两个频率。如图8所示,每个阴影扇区使用可用OFDMA群集的一半,无阴影的扇区使用该群集的另一半。在一般性情况下,阴影扇区使用的群集被称作奇群集,而无阴影扇区使用的群集被称作偶群集。
考虑在用户设备上用全向天线发射下行链路信号的情况。从图8中可以清楚地看到,对于阴影扇区,小区A干扰小区B,小区B又干扰小区C,小区C又干扰小区A,即,A->B->C->A。对于无阴影扇区,小区A干扰小区C,小区C又干扰小区B,小区B又干扰小区A,即,A->C->B->A。
扇区A1接收来自扇区C1的干扰,但是其传输干扰扇区B1。即,干扰源和干扰的受害者是不同的。这可以在使用干扰避免的分布式群集分布***中造成一个稳定性问题:如果一个频率群集被分配在扇区B1而不是扇区C1中,则该群集可以被分配在A1中,因为在A1中把它视作清洁(无干扰)。然而,该群集的分配可以对B1中现存分配造成干扰问题。
在一个实施例中,不同群集组在不同小区中被分配不同优先级,以便在业务负荷逐渐加入一个扇区时减轻上述问题。可以联合设计优先级顺序,使群集可以被选择性地分配,以避免来自干扰源的干扰,同时减少以及可能最小化对其它小区中现有分配造成干扰问题的可能性。
使用上述实例将奇群集(由阴影扇区使用)划分成3组:组1,2,3。表2中列出了优先级序列。
表2:阴影扇区的下行链路的优先级定序。
优先级定序 | 小区A | 小区B | 小区C |
1 | 组1 | 组3 | 组2 |
2 | 组2 | 组1 | 组3 |
3 | 组3 | 组2 | 组1 |
考虑扇区A1。首先选择性分配组1中的群集。如果仍然有更多的需要群集的用户设备,则根据测量的SINR,将组2中的群集选择性地分配给用户设备(避免从扇区C1接收强干扰的群集)。需要说明的是,从组2向扇区A1新近分配的群集将不会在扇区B1中造成干扰问题,除非扇区B1中的负荷太重使组3和组1中的群集被用尽,并且还要使用组2中的群集。表3显示了当在扇区A1、B1、C1中使用不足所有可用群集的2/3时的群集应用。
表3:具有不足全负荷2/3的阴影扇区的下行链路的群集应用。
群集应用 | 小区A | 小区B | 小区C |
1 | 组1 | 组3 | 组2 |
2 | 组2 | 组1 | 组3 |
3 |
表4示出了无阴影扇区的下行链路的优先级顺序,它不同于阴影扇区的优先级顺序,因为干扰关系被颠倒。
表4:无阴影扇区的下行链路的优先级定序。
优先级定序 | 小区A | 小区B | 小区C |
1 | 组1 | 组2 | 组3 |
2 | 组2 | 组3 | 组1 |
3 | 组3 | 组1 | 组2 |
相干与分集群集之间的智能交换
在一个实施例中,存在两类群集:相干群集,包含相互接近的多个副载波;和分集群集,包括具有至少在频谱上相距很远扩展的某些副载波。多个副载波的接近最好是在信道相干带宽内,即,信道响应保持大致相同的带宽,对于许多群集***通常是在100kHz内。另一方面,分集群集的副载波扩展最好大于信道相干带宽,对于许多蜂窝***通常是在100kHz内。当然,扩展越大,分集就越好。因此,这种情况下的一般目的是最大化扩展。
图9示出了用于小区A-C的相干群集和分集群集的实例性群集格式。参见图9,对于小区A-C,频率(副载波)的标记指示频率是否为相干或者分集群集的部分。例如,被标记为1-8的那些频率是分集群集,被标记为9-16的那些频率是相干群集。例如,一个小区中被标记为1的所有频率是一个分集群集的部分,一个小区中被标记为2的所有频率是另一个群集的部分等,而被标记为9的频率组是一个相干群集,被标记为10的频率组是另一个相干群集等。对于不同小区可以不同地配置分集群集,以经由干扰平均减少小区间干扰的影响。
图9显示了3个相邻小区的示范性群集配置。来自一个小区的特定群集的干扰被分布到其它小区的许多群集上,例如,来自小区A的群集1的干扰被分布到小区B的群集1、8、7、6。这明显减少了对小区B中的任何特定群集的干扰功率。同样,对一个小区的任何特定群集的干扰来自其它小区的许多不同群集。由于所有群集都不是强干扰,因此具有在其副载波上进行信道编码的分集群集提供干扰分集增益。因此,它的优点是,将分集群集分配给接近(例如,在相干带宽内)小区边界的多个用户设备,并且更加受制于小区间干扰。
由于相干群集中的副载波是连续的或者相互接近(例如,在相干带宽内),因此它们很可能位于信道衰落的相干带宽内,因此,相干群集的信道增益可以显著变化,群集选择可以极大地改善性能。另一方面,分集群集的平均信道增益减少了由于扩频的多个副载波中的相干频率分集造成的变化程度。由于在群集内副载波上进行的信道编码,分集群集更强化了群集误选择(通过分集本身的性质),同时可能从群集选择中获得(yield)较小增益。在副载波上进行的信道编码是指每个码字包含从多个副载波发送的多个比特,更具体地说,在多个副载波中分布码字之间的差比特(误差矢量)。
更多的频率分集可以通过时间上跳跃的副载波获得,其中一个用户设备在一个时隙占用一组副载波,在一个不同时隙占用另一不同组副载波。一个编码单位(帧)包含多个这样的时隙,并且在整个帧上对所发送比特编码。
图10示出了具有副载波跳跃的分集群集。参见图10,在所示的小区A和B中存在4个分集群集,各分集群集中的每个副载波具有相同标记(1,2,3或者4)。存在所示的4个分离的时隙,并且在每个时隙期间,每个分集群集的副载波变化。例如,在小区A中,副载波1是时隙1期间的分集群集1的部分,是时隙2期间的分集群集2的部分,是时隙3期间的分集群集3的部分,是时隙4期间的分集群集4的部分。这样,通过时间跳跃的副载波可以获得更多的干扰分集,更多干扰分集可以通过使用不同小区的不同跳跃图案获得,如图10所示。
用户设备改变副载波(跳跃序列)的方式因不同小区而有所不同,以便通过编码实现更好的干扰平均。
对于静态副载波,比如在固定无线接入中,信道在时间上变化非常小。使用相干群集的选择性群集分配实现良好的性能。另一方面,对于移动用户设备,信道时间差异(信道随时间变化造成的差异)可能非常大。一个时间的高增益群集在另一个时间可能处于强衰落。因此,群集分配需要以快速率更新,从而造成大量的控制开销。在此情况下,分集群集可以被用来提供额外强度,并减少频率群集再分配的开销。在一个实施例中,执行比信道变化率更快的群集分配,经常是通过信道多普勒速率(以赫兹为单位)进行测量,即信道每秒变化多少周期,其中信道在一个周期后是完全不同的。需要说明的是,可以对相干和分集群集执行选择性群集分配。
在一个实施例中,对于包含混合的移动和固定副载波的小区,信道/干扰变化检测器可以被设置在用户设备或者基站上,或者被设置在这两者上。使用检测结果,用户设备和基站智能地选择对小区边界处的移动用户设备或者固定用户设备的分集群集,和智能地选择对接近基站的固定用户设备的相干群集。信道/干扰变化检测器为每个群集时常测量信道(SINR)变化。例如,在一个实施例中,信道/干扰检测器为每个群集测量导频符号之间的功率差,并且在一个移动窗口(例如,4个时隙)平均该差值。大差值指示信道/干扰频繁变化,并指示副载波分配可能不是稳定的。在这样一种情况下,分集群集对用户设备更理想。
图11是根据用户移动性处理分集群集与相干群集之间智能选择的一个实施例的流程图。该处理由处理逻辑执行,所述逻辑可以包括硬件(例如,电路,专用逻辑等),软件(比如,在例如一个通用计算机***或者专用机器上运行的软件),或者两者的组合。
参见图11,基站中的处理逻辑执行信道/干扰变化检测(处理块1101)。然后,处理逻辑检验信道/干扰变化检测结果是否指示用户是移动的,或者位于接近小区边缘的一个固定位置(处理块1102)。如果用户不是移动的或者不位于接近小区边缘的固定位置,则处理转移到基站处理逻辑选择相干群集的处理块1103;反之,处理转移到基站处理逻辑选择分集群集的处理块1104。
在一个实施例中,基站通过检测导频信号或者正常的信道变化的变化速率,来确定一个用户设备是移动的还是固定的,并且确定该变化速率大于一个预定阈值。信道之间标准的瞬时差可以被表示为其中Hi代表信道,i是表示各个信道的索引。
阈值是由***决定的。例如,变化速率大于10%(尽管可以使用任何百分比(例如,20%)),那么基站推断用户设备是移动的。在一个实施例中,如果信令的恒定时段大于往返延时的倍数(例如,往返延迟的5倍),那么基站确定用户设备是移动的,并分配分集群集;反之,基站分配相干群集。
可以在再训练期间更新和智能地交换选择。
小区中相干和分集群集的数量的比例/分配取决于移动和固定用户群体的比例。当用户群体随***发展而变化时,可以重新配置相干和分集群集的分配,以调节新***之需要。图12示出了能够支持比图9更多的移动用户的群集分类的重新配置。
尽管本领域的熟练技术人员在阅读上述说明之后将会明白本发明的许多替换和修改,但是应当理解,通过图示说明方式描述和显示的任何特定实施例不能理解为对本发明的限制。因此,各种实施例的具体参考不打算用来限制权利要求的范围,而权利要求仅表述了视作本发明本质的哪些特征。
Claims (16)
1.一种方法,所述方法包括:
由基站在第一时间向用户单元传送至少第一导频符号以测量所述至少第一导频符号以及获得用于多个正交频分多址(OFDMA)副载波的第一信道和干扰信息;
在向所述用户单元传送所述至少第一导频符号之后,由所述基站从所述用户单元接收与多个群集有关的信道和干扰信息的第一反馈,所述多个群集的每个群集具有所述多个OFDMA副载波的至少两个OFDMA副载波,信道和干扰信息的所述第一反馈的所述接收包括接收与所述多个群集的每个群集相关联的调制和编码速率的第一指示;
在所述信道和干扰信息的所述第一反馈的所述接收之后并至少基于所述信道和干扰信息的所述第一反馈的所述接收,所述基站向所述用户单元传送由所述基站选择的供所述用户单元使用的所述多个OFDMA副载波的OFDMA副载波的第一分配;
由基站在所述第一时间之后的第二时间向用户单元传送至少第二导频符号以测量所述至少第二导频符号以及获得用于所述多个OFDMA副载波的第二信道和干扰信息;
在向所述用户单元传送所述至少第二导频符号之后,由所述基站从所述用户单元接收与所述多个群集有关的信道和干扰信息的第二反馈,信道和干扰信息的所述第二反馈的所述接收包括接收与所述多个群集的每个群集相关联的调制和编码速率的第二指示;
在所述信道和干扰信息的所述第二反馈的所述接收之后并至少基于所述信道和干扰信息的所述第二反馈的所述接收,所述基站向所述用户单元传送由所述基站选择的供所述用户单元使用的所述多个OFDMA副载波的OFDMA副载波的第二分配。
2.根据权利要求1所述的方法,该方法还包括由所述基站向所述用户单元传送再训练请求,在传送所述再训练请求之后信道和干扰信息的所述第二反馈被接收。
3.根据权利要求1所述的方法,其中所述多个OFDMA副载波的OFDMA副载波的所述第一分配的至少一个OFDMA副载波与所述多个OFDMA副载波的OFDMA副载波的所述第一分配的其他OFDMA副载波不连续。
4.根据权利要求1所述的方法,其中调制和编码速率的所述第一指示和调制和编码速率的所述第二指示包括信号干扰噪声比(SINR)索引。
5.根据权利要求4所述的方法,其中信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈中的信息顺序对于基站是已知的,从而不需要群集索引来指示信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈中的哪个SINR索引对应所述多个群集中的哪个群集。
6.根据权利要求1所述的方法,其中接收来自所述用户单元的信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈在所述多个群集的所有群集上发生。
7.根据权利要求1所述的方法,其中所述多个OFDMA副载波的OFDMA副载波的所述第二分配不同于所述多个OFDMA副载波的OFDMA副载波的所述第一分配。
8.根据权利要求1所述的方法,其中所述第一导频符号和所述第二导频符号中的每一者占用整个正交频分复用(OFDM)频率带宽。
9.一种基站,所述基站包括:
收发信机,被配置为:
在第一时间向用户单元传送至少第一导频符号以测量所述至少第一导频符号以及获得用于多个正交频分多址(OFDMA)副载波的第一信道和干扰信息;
在向所述用户单元传送所述至少第一导频符号之后,从所述用户单元接收与多个群集有关的信道和干扰信息的第一反馈,所述多个群集的每个群集具有所述多个OFDMA副载波的至少两个OFDMA副载波,信道和干扰信息的所述第一反馈的所述接收包括接收与所述多个群集的每个群集相关联的调制和编码速率的第一指示;
在所述信道和干扰信息的所述第一反馈的所述接收之后并至少基于所述信道和干扰信息的所述第一反馈的所述接收,向所述用户单元传送由所述基站选择的供所述用户单元使用的所述多个OFDMA副载波的OFDMA副载波的第一分配;
在所述第一时间之后的第二时间向用户单元传送至少第二导频符号以测量所述至少第二导频符号以及获得用于所述多个OFDMA副载波的第二信道和干扰信息;
在向所述用户单元传送所述至少第二导频符号之后,从所述用户单元接收与所述多个群集有关的信道和干扰信息的第二反馈,信道和干扰信息的所述第二反馈的所述接收包括接收与所述多个群集的每个群集相关联的调制和编码速率的第二指示;
在所述信道和干扰信息的所述第二反馈的所述接收之后并至少基于所述信道和干扰信息的所述第二反馈的所述接收,向所述用户单元传送由所述基站选择的供所述用户单元使用的所述多个OFDMA副载波的OFDMA副载波的第二分配。
10.根据权利要求9所述的基站,其中所述收发信机还被配置为向所述用户单元传送再训练请求,在传送所述再训练请求之后信道和干扰信息的所述第二反馈被接收。
11.根据权利要求9所述的基站,其中所述多个OFDMA副载波的OFDMA副载波的所述第一分配的至少一个OFDMA副载波与所述多个OFDMA副载波的OFDMA副载波的所述第一分配的其他OFDMA副载波不连续。
12.根据权利要求9所述的基站,其中调制和编码速率的所述第一指示和调制和编码速率的所述第二指示包括信号干扰噪声比(SINR)索引。
13.根据权利要求12所述的基站,其中信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈中的信息顺序对于基站是已知的,从而不需要群集索引来指示信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈中的哪个SINR索引对应所述多个群集中的哪个群集。
14.根据权利要求9所述的基站,其中接收来自所述用户单元的信道和干扰信息的所述第一反馈和信道和干扰信息的所述第二反馈在所述多个群集的所有群集上发生。
15.根据权利要求9所述的基站,其中所述多个OFDMA副载波的OFDMA副载波的所述第二分配不同于所述多个OFDMA副载波的OFDMA副载波的所述第一分配。
16.根据权利要求9所述的基站,其中所述第一导频符号和所述第二导频符号中的每一者占用整个正交频分复用(OFDM)频率带宽。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/738,086 | 2000-12-15 | ||
US09/738,086 US6947748B2 (en) | 2000-12-15 | 2000-12-15 | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
US09/837,701 | 2001-04-17 | ||
US09/837,701 US7146172B2 (en) | 2000-12-15 | 2001-04-17 | Multi-carrier communications with adaptive cluster configuration and switching |
CNA018206522A CN1524367A (zh) | 2000-12-15 | 2001-12-13 | 具有自适应群集配置和交换的多载波通信 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA018206522A Division CN1524367A (zh) | 2000-12-15 | 2001-12-13 | 具有自适应群集配置和交换的多载波通信 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105099624A true CN105099624A (zh) | 2015-11-25 |
Family
ID=24966507
Family Applications (13)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006100810625A Expired - Fee Related CN1874334B (zh) | 2000-12-15 | 2001-12-13 | 一种在使用正交频分多址的***中选择副载波的方法及设备 |
CN201510633715.5A Pending CN105187168A (zh) | 2000-12-15 | 2001-12-13 | 在ofdma***中的无线通信的方法、基站以及第一用户站台 |
CN201510633879.8A Pending CN105099624A (zh) | 2000-12-15 | 2001-12-13 | 一种方法及基站 |
CN201510633851.4A Pending CN105306170A (zh) | 2000-12-15 | 2001-12-13 | 一种方法及基站 |
CN201510633854.8A Pending CN105356970A (zh) | 2000-12-15 | 2001-12-13 | 从基站接收副载波组的分配的方法及网络 |
CN201510632884.7A Pending CN105356969A (zh) | 2000-12-15 | 2001-12-13 | 用于在下行链路上使用ofdma的无线***的方法及用户单元 |
CN200910132399A Pending CN101707806A (zh) | 2000-12-15 | 2001-12-13 | 副载波选择方法和设备、减少小区间干扰方法及ofdma*** |
CN201510632883.2A Pending CN105119700A (zh) | 2000-12-15 | 2001-12-13 | 在通信链路中的下行链路的方法、用户单元及基站 |
CN201510632865.4A Pending CN105187166A (zh) | 2000-12-15 | 2001-12-13 | 一种方法及基站 |
CN201210378025.6A Expired - Fee Related CN102932120B (zh) | 2000-12-15 | 2001-12-13 | 一种用于在ofdma***中分配副载波的方法及设备 |
CNA018206964A Pending CN1484906A (zh) | 2000-12-15 | 2001-12-13 | 具有自适应副载波群集配置和选择性加载的ofdma |
CN201510306216.5A Pending CN105162561A (zh) | 2000-12-15 | 2001-12-13 | 用于使用ofdma的无线***的方法以及用户单元 |
CN201210528439.2A Expired - Fee Related CN103036842B (zh) | 2000-12-15 | 2001-12-13 | 用于使用ofdma的***的副载波选择的方法和*** |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006100810625A Expired - Fee Related CN1874334B (zh) | 2000-12-15 | 2001-12-13 | 一种在使用正交频分多址的***中选择副载波的方法及设备 |
CN201510633715.5A Pending CN105187168A (zh) | 2000-12-15 | 2001-12-13 | 在ofdma***中的无线通信的方法、基站以及第一用户站台 |
Family Applications After (10)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510633851.4A Pending CN105306170A (zh) | 2000-12-15 | 2001-12-13 | 一种方法及基站 |
CN201510633854.8A Pending CN105356970A (zh) | 2000-12-15 | 2001-12-13 | 从基站接收副载波组的分配的方法及网络 |
CN201510632884.7A Pending CN105356969A (zh) | 2000-12-15 | 2001-12-13 | 用于在下行链路上使用ofdma的无线***的方法及用户单元 |
CN200910132399A Pending CN101707806A (zh) | 2000-12-15 | 2001-12-13 | 副载波选择方法和设备、减少小区间干扰方法及ofdma*** |
CN201510632883.2A Pending CN105119700A (zh) | 2000-12-15 | 2001-12-13 | 在通信链路中的下行链路的方法、用户单元及基站 |
CN201510632865.4A Pending CN105187166A (zh) | 2000-12-15 | 2001-12-13 | 一种方法及基站 |
CN201210378025.6A Expired - Fee Related CN102932120B (zh) | 2000-12-15 | 2001-12-13 | 一种用于在ofdma***中分配副载波的方法及设备 |
CNA018206964A Pending CN1484906A (zh) | 2000-12-15 | 2001-12-13 | 具有自适应副载波群集配置和选择性加载的ofdma |
CN201510306216.5A Pending CN105162561A (zh) | 2000-12-15 | 2001-12-13 | 用于使用ofdma的无线***的方法以及用户单元 |
CN201210528439.2A Expired - Fee Related CN103036842B (zh) | 2000-12-15 | 2001-12-13 | 用于使用ofdma的***的副载波选择的方法和*** |
Country Status (11)
Country | Link |
---|---|
US (28) | US6947748B2 (zh) |
EP (8) | EP2988449A1 (zh) |
JP (17) | JP4201595B2 (zh) |
KR (3) | KR100688104B1 (zh) |
CN (13) | CN1874334B (zh) |
AU (1) | AU2002236627A1 (zh) |
CA (6) | CA2871045C (zh) |
ES (1) | ES2403829T3 (zh) |
HK (5) | HK1065192A1 (zh) |
MX (1) | MXPA03005308A (zh) |
WO (1) | WO2002049305A2 (zh) |
Families Citing this family (631)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7952511B1 (en) | 1999-04-07 | 2011-05-31 | Geer James L | Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns |
US6563809B1 (en) | 1999-04-28 | 2003-05-13 | Tantivy Communications, Inc. | Subscriber-controlled registration technique in a CDMA system |
JP3522619B2 (ja) * | 2000-01-05 | 2004-04-26 | 株式会社エヌ・ティ・ティ・ドコモ | マルチキャリアcdma伝送システムにおける送信機 |
GB0015512D0 (en) * | 2000-06-23 | 2000-08-16 | Univ Surrey | Channel allocation and assignment methods and systems |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
FR2814012B1 (fr) * | 2000-09-14 | 2002-10-31 | Mitsubishi Electric Inf Tech | PROCEDE D'ATTRIBUTION D'UN NIVEAU DE PUISSANCE D'EMISSION A DES SYMBOLES PILOTES UTILISES POUR l'ESTIMATION DU CANAL D'UN SYSTEME DE TRANSMISSION |
US6760882B1 (en) * | 2000-09-19 | 2004-07-06 | Intel Corporation | Mode selection for data transmission in wireless communication channels based on statistical parameters |
US6802035B2 (en) * | 2000-09-19 | 2004-10-05 | Intel Corporation | System and method of dynamically optimizing a transmission mode of wirelessly transmitted information |
US7072315B1 (en) * | 2000-10-10 | 2006-07-04 | Adaptix, Inc. | Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks |
US6870808B1 (en) | 2000-10-18 | 2005-03-22 | Adaptix, Inc. | Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks |
US7346347B2 (en) * | 2001-01-19 | 2008-03-18 | Raze Technologies, Inc. | Apparatus, and an associated method, for providing WLAN service in a fixed wireless access communication system |
US8019068B2 (en) * | 2000-12-01 | 2011-09-13 | Alcatel Lucent | Method of allocating power for the simultaneous downlink conveyance of information between multiple antennas and multiple destinations |
US6947748B2 (en) * | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
JP4031707B2 (ja) | 2000-12-15 | 2008-01-09 | アダプティックス インコーポレイテッド | グループベースのサブキャリア割当による多重キャリア通信 |
US7139237B2 (en) * | 2000-12-29 | 2006-11-21 | Motorola, Inc. | Method and system for multirate multiuser modulation |
US7035275B2 (en) * | 2001-01-16 | 2006-04-25 | Texas Instruments Incorporated | Non-collaborative mechanisms for enhanced coexistence of wireless networks |
US7164669B2 (en) * | 2001-01-19 | 2007-01-16 | Adaptix, Inc. | Multi-carrier communication with time division multiplexing and carrier-selective loading |
US6961388B2 (en) * | 2001-02-01 | 2005-11-01 | Qualcomm, Incorporated | Coding scheme for a wireless communication system |
US9979580B2 (en) | 2001-02-01 | 2018-05-22 | Qualcomm Incorporated | Coding scheme for a wireless communication system |
US6940827B2 (en) | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
US6934340B1 (en) * | 2001-03-19 | 2005-08-23 | Cisco Technology, Inc. | Adaptive control system for interference rejections in a wireless communications system |
US7688899B2 (en) * | 2001-05-17 | 2010-03-30 | Qualcomm Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
US7072413B2 (en) | 2001-05-17 | 2006-07-04 | Qualcomm, Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
US6751444B1 (en) | 2001-07-02 | 2004-06-15 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
US7191246B2 (en) * | 2001-07-18 | 2007-03-13 | Sharp Laboratories Of America, Inc. | Transmission rate selection for a network of receivers having heterogenous reception bandwidth |
JP4171261B2 (ja) * | 2001-08-27 | 2008-10-22 | 松下電器産業株式会社 | 無線通信装置及び無線通信方法 |
KR100455285B1 (ko) * | 2001-09-06 | 2004-11-12 | 삼성전자주식회사 | 다중 반송파 방식을 이용한 데이타 무선 통신 방법 및장치와 이를 위한 전송 프레임 포맷 |
WO2003026297A1 (en) * | 2001-09-12 | 2003-03-27 | Samsung Electronics Co., Ltd. | Method and apparatus for transferring channel information in ofdm communications |
US7061854B2 (en) * | 2001-10-15 | 2006-06-13 | Nortel Networks Limited | Efficient OFDM communications with interference immunity |
US7548506B2 (en) * | 2001-10-17 | 2009-06-16 | Nortel Networks Limited | System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |
US6950670B2 (en) * | 2001-10-31 | 2005-09-27 | At&T Corp. | Wireless network having joint power and data rate adaptation |
JP3637965B2 (ja) * | 2001-11-22 | 2005-04-13 | 日本電気株式会社 | 無線通信システム |
EP1328131B1 (en) * | 2002-01-15 | 2008-02-27 | Koninklijke KPN N.V. | Method and system for planning and/or evaluating of cell capacity in CDMA radio networks |
US7187647B1 (en) | 2002-01-23 | 2007-03-06 | At&T Corp. | Ultra-wide bandwidth system and method for in-premises wireless networking |
JP2003218778A (ja) * | 2002-01-24 | 2003-07-31 | Nec Corp | 無線送受信装置及び無線通信システム |
CN101083510B (zh) | 2002-03-08 | 2015-04-29 | 英特尔公司 | 用于高速率正交频分复用通信的***和方法 |
JP3898533B2 (ja) * | 2002-03-11 | 2007-03-28 | シャープ株式会社 | 無線通信システム |
US7184393B1 (en) * | 2002-03-11 | 2007-02-27 | Texas Instruments Incorporated | Method and apparatus for multiuser access in a multicarrier modulation network |
GB2386519B (en) | 2002-03-12 | 2004-05-26 | Toshiba Res Europ Ltd | Adaptive Multicarrier Communication |
US7020226B1 (en) * | 2002-04-04 | 2006-03-28 | Nortel Networks Limited | I/Q distortion compensation for the reception of OFDM signals |
JP3943980B2 (ja) * | 2002-04-09 | 2007-07-11 | 富士通株式会社 | 符号分割多元接続通信システムならびに符号分割多元接続通信システムにおける基地局制御装置および基地局 |
AU2003219467A1 (en) * | 2002-05-27 | 2003-12-12 | Koninklijke Philips Electronics N.V. | System for allocating channels to calls via updatable priorities |
US7095709B2 (en) * | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication systems |
US20050099968A1 (en) * | 2002-06-25 | 2005-05-12 | Osamu Yamano | Power control method and apparatus |
US20040004951A1 (en) | 2002-07-05 | 2004-01-08 | Interdigital Technology Corporation | Method for performing wireless switching |
US8190163B2 (en) * | 2002-08-08 | 2012-05-29 | Qualcomm Incorporated | Methods and apparatus of enhanced coding in multi-user communication systems |
US6961595B2 (en) | 2002-08-08 | 2005-11-01 | Flarion Technologies, Inc. | Methods and apparatus for operating mobile nodes in multiple states |
US7363039B2 (en) * | 2002-08-08 | 2008-04-22 | Qualcomm Incorporated | Method of creating and utilizing diversity in multiple carrier communication system |
EP1414255A1 (de) * | 2002-10-24 | 2004-04-28 | Siemens Aktiengesellschaft | Verfahren zur Verwaltung von Funkressourcen |
US6928062B2 (en) | 2002-10-29 | 2005-08-09 | Qualcomm, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
US7039001B2 (en) * | 2002-10-29 | 2006-05-02 | Qualcomm, Incorporated | Channel estimation for OFDM communication systems |
US7042857B2 (en) | 2002-10-29 | 2006-05-09 | Qualcom, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
EP1418776B1 (en) * | 2002-11-07 | 2006-03-22 | Samsung Electronics Co., Ltd. | Frequency reuse method in an orthogonal frequency division multiplex mobile communication system (OFDM) |
AU2002364698A1 (en) | 2002-11-07 | 2004-06-03 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
JP3796212B2 (ja) * | 2002-11-20 | 2006-07-12 | 松下電器産業株式会社 | 基地局装置及び送信割り当て制御方法 |
KR100542090B1 (ko) | 2002-12-16 | 2006-01-11 | 한국전자통신연구원 | 무선 통신 시스템에서의 오류 제어 방법, 매체 접속 제어프레임 설계 방법 및 단말기 등록 방법과 기록 매체 |
KR100494844B1 (ko) * | 2002-12-21 | 2005-06-14 | 한국전자통신연구원 | 통신 시스템의 적응형 자원 할당 방법 |
JP4256158B2 (ja) | 2002-12-26 | 2009-04-22 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
US7756002B2 (en) * | 2003-01-30 | 2010-07-13 | Texas Instruments Incorporated | Time-frequency interleaved orthogonal frequency division multiplexing ultra wide band physical layer |
US7660282B2 (en) | 2003-02-18 | 2010-02-09 | Qualcomm Incorporated | Congestion control in a wireless data network |
US7155236B2 (en) | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
US8422434B2 (en) * | 2003-02-18 | 2013-04-16 | Qualcomm Incorporated | Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
US20040160922A1 (en) | 2003-02-18 | 2004-08-19 | Sanjiv Nanda | Method and apparatus for controlling data rate of a reverse link in a communication system |
BRPI0407628B1 (pt) | 2003-02-19 | 2017-09-26 | Qualcomm Incorporated | Coding of controlled superposition in multi-user communication systems |
US8811348B2 (en) | 2003-02-24 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus for generating, communicating, and/or using information relating to self-noise |
US7218948B2 (en) * | 2003-02-24 | 2007-05-15 | Qualcomm Incorporated | Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators |
BRPI0407799A (pt) * | 2003-02-24 | 2006-02-14 | Flarion Technologies Inc | sinais piloto para utilização em células multisetoriais |
US9544860B2 (en) | 2003-02-24 | 2017-01-10 | Qualcomm Incorporated | Pilot signals for use in multi-sector cells |
US9661519B2 (en) | 2003-02-24 | 2017-05-23 | Qualcomm Incorporated | Efficient reporting of information in a wireless communication system |
US7095790B2 (en) * | 2003-02-25 | 2006-08-22 | Qualcomm, Incorporated | Transmission schemes for multi-antenna communication systems utilizing multi-carrier modulation |
WO2004077777A1 (en) * | 2003-02-28 | 2004-09-10 | Nortel Networks Limited | Sub-carrier allocation for ofdm |
US8705588B2 (en) | 2003-03-06 | 2014-04-22 | Qualcomm Incorporated | Systems and methods for using code space in spread-spectrum communications |
US7215930B2 (en) | 2003-03-06 | 2007-05-08 | Qualcomm, Incorporated | Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication |
US7342906B1 (en) * | 2003-04-04 | 2008-03-11 | Airespace, Inc. | Distributed wireless network security system |
JP3860556B2 (ja) * | 2003-04-04 | 2006-12-20 | 松下電器産業株式会社 | 基地局装置及び通信方法 |
US7260079B1 (en) * | 2003-04-07 | 2007-08-21 | Nortel Networks, Ltd. | Method and apparatus for directional transmission of high bandwidth traffic on a wireless network |
US7286603B2 (en) | 2003-05-01 | 2007-10-23 | Nokia Corporation | Method and apparatus for increasing data rates in a wideband MC-CDMA telecommunication system |
IL155829A0 (en) * | 2003-05-09 | 2003-12-23 | Zion Hadad | Cellular network system and method |
US8477592B2 (en) | 2003-05-14 | 2013-07-02 | Qualcomm Incorporated | Interference and noise estimation in an OFDM system |
US8593932B2 (en) | 2003-05-16 | 2013-11-26 | Qualcomm Incorporated | Efficient signal transmission methods and apparatus using a shared transmission resource |
US8064528B2 (en) | 2003-05-21 | 2011-11-22 | Regents Of The University Of Minnesota | Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems |
EP1489806B1 (en) * | 2003-06-16 | 2005-01-19 | Alcatel | Method for transmitting signalling information in a multicarrier radio communication network |
IL156540A0 (en) | 2003-06-19 | 2004-01-04 | Zion Hada | Ofdma communication system and method |
KR100689382B1 (ko) * | 2003-06-20 | 2007-03-02 | 삼성전자주식회사 | 직교분할다중화방식을 기반으로 하는이동통신시스템에서의 송신장치 및 방법 |
JP4482293B2 (ja) * | 2003-07-03 | 2010-06-16 | パナソニック株式会社 | 基地局装置および送信方法 |
KR100929100B1 (ko) * | 2003-07-18 | 2009-11-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 통신 시스템에서 서브 채널 할당 장치 및 방법 |
EP1501234A1 (de) * | 2003-07-25 | 2005-01-26 | Com-Research GmbH Solutions for Communication Systems | Verfahren und Vorrichtung zur Bestimmung des dominanten Störtyps |
JP4546177B2 (ja) | 2003-07-28 | 2010-09-15 | パナソニック株式会社 | 無線通信装置および無線通信方法 |
KR100735277B1 (ko) * | 2003-07-30 | 2007-07-03 | 삼성전자주식회사 | 광대역 무선 접속 통신 시스템에서 레인징 방법 |
KR100640461B1 (ko) * | 2003-07-30 | 2006-10-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 채널 할당 장치 및 방법 |
KR101133632B1 (ko) * | 2003-07-31 | 2012-04-10 | 파나소닉 주식회사 | 무선 송신 장치 및 변조 방식의 선택 방법 |
US8489949B2 (en) | 2003-08-05 | 2013-07-16 | Qualcomm Incorporated | Combining grant, acknowledgement, and rate control commands |
US7801067B2 (en) * | 2003-08-05 | 2010-09-21 | Motorola, Inc. | Method for mitigating collisions on a data channel upon request from a subscriber |
PL3402092T3 (pl) | 2003-08-06 | 2022-02-21 | Optis Wireless Technology, Llc | Urządzenie komunikacji bezprzewodowej i sposób komunikacji bezprzewodowej |
US7925291B2 (en) * | 2003-08-13 | 2011-04-12 | Qualcomm Incorporated | User specific downlink power control channel Q-bit |
KR100965338B1 (ko) * | 2003-08-18 | 2010-06-22 | 엘지전자 주식회사 | Ofdm 셀룰러 환경에서 셀간 간섭 저감을 위한부반송파 할당방법 |
KR20060132786A (ko) * | 2003-08-19 | 2006-12-22 | 마쓰시다 일렉트릭 인더스트리얼 컴패니 리미티드 | 멀티캐리어 통신 장치, 멀티캐리어 통신 시스템 및 송신전력 제어 방법 |
KR101225170B1 (ko) | 2003-08-20 | 2013-01-22 | 파나소닉 주식회사 | 무선 통신 장치 및 서브 캐리어의 할당 방법 |
KR101109936B1 (ko) | 2003-08-20 | 2012-02-27 | 파나소닉 주식회사 | 무선 통신 장치 및 서브 캐리어의 할당 방법 |
KR100539925B1 (ko) * | 2003-08-22 | 2005-12-28 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 부반송파 할당 장치 및 방법 |
WO2005029803A2 (en) * | 2003-09-19 | 2005-03-31 | Matsushita Electric Industrial Co., Ltd. | Multicarrier communication method, system and apparatus |
KR100566210B1 (ko) * | 2003-09-22 | 2006-03-29 | 삼성전자주식회사 | 무선 통신 시스템에서 채널 할당 장치 및 방법 |
US9585023B2 (en) * | 2003-10-30 | 2017-02-28 | Qualcomm Incorporated | Layered reuse for a wireless communication system |
US8526963B2 (en) * | 2003-10-30 | 2013-09-03 | Qualcomm Incorporated | Restrictive reuse for a wireless communication system |
KR100876757B1 (ko) * | 2003-10-31 | 2009-01-07 | 삼성전자주식회사 | 통신 시스템에서 서브 채널 구성 시스템 및 방법 |
JP4401390B2 (ja) * | 2003-11-07 | 2010-01-20 | シャープ株式会社 | ネットワークコーディネートのための方法およびシステム |
US8213301B2 (en) * | 2003-11-07 | 2012-07-03 | Sharp Laboratories Of America, Inc. | Systems and methods for network channel characteristic measurement and network management |
KR100557158B1 (ko) | 2003-11-12 | 2006-03-03 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 이동통신시스템에서 부반송파 할당을 위한 장치 및 방법 |
US8406235B2 (en) * | 2003-11-26 | 2013-03-26 | Qualcomm Incorporated | Quality of service scheduler for a wireless network |
KR100600672B1 (ko) * | 2003-11-28 | 2006-07-13 | 삼성전자주식회사 | 직교주파수분할다중접속 시스템에서의 파일롯 서브캐리어할당 방법과 송신 방법 및 그 장치, 수신 방법 및 그 장치 |
JP2005167502A (ja) * | 2003-12-01 | 2005-06-23 | Ntt Docomo Inc | 無線通信システム、送信無線局の制御装置及び受信無線局の制御装置、並びにサブキャリア選択方法 |
KR20050053907A (ko) * | 2003-12-03 | 2005-06-10 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 캐리어 할당 방법 |
IL159173A0 (en) * | 2003-12-03 | 2004-06-01 | Zion Hadad | Ofdm communication channel |
US6971898B2 (en) * | 2003-12-11 | 2005-12-06 | Electric Power Research Institute, Inc. | Apparatus and method for electrically and mechanically connecting and disconnecting a power line |
EP1542488A1 (en) * | 2003-12-12 | 2005-06-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for allocating a pilot signal adapted to the channel characteristics |
AU2003291596A1 (en) * | 2003-12-19 | 2005-07-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus in a cellular telecommunications system |
US20070274403A1 (en) * | 2003-12-22 | 2007-11-29 | Sung-Cheol Chang | Method for Constituting Layered Cell in Ofdma System |
KR100587417B1 (ko) | 2003-12-22 | 2006-06-08 | 한국전자통신연구원 | 주파수 분할 다중화를 사용하는 무선통신 시스템에서의적응 송수신 장치 및 그 방법 |
KR100943572B1 (ko) * | 2003-12-23 | 2010-02-24 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 시스템에서 주파수재사용율을 고려한 적응적 부채널 할당 장치 및 방법 |
KR100534594B1 (ko) * | 2003-12-27 | 2005-12-07 | 한국전자통신연구원 | 다중반송파 코드분할다중접속 시스템에서 적응형 하향링크패킷 전송방법 |
SE0303607D0 (sv) | 2003-12-30 | 2003-12-30 | Ericsson Telefon Ab L M | Brandwidth signalling |
FI20031935A0 (fi) * | 2003-12-31 | 2003-12-31 | Nokia Corp | Resurssien allokointi matkaviestinverkossa |
US8611283B2 (en) | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
CN102064848B (zh) | 2004-01-29 | 2012-07-25 | 桥扬科技有限公司 | 用于多小区宽带无线***中的移动站和基站的方法和装置 |
EP1712089B1 (en) | 2004-01-29 | 2014-11-19 | Neocific, Inc. | Methods and apparatus for multi-carrier, multi-cell wireless communication networks |
US7310526B2 (en) * | 2004-02-06 | 2007-12-18 | Nec Laboratories America, Inc. | Load-aware handoff and site selection scheme |
US7693032B2 (en) | 2004-02-13 | 2010-04-06 | Neocific, Inc. | Methods and apparatus for multi-carrier communication systems with adaptive transmission and feedback |
KR20050081528A (ko) * | 2004-02-14 | 2005-08-19 | 삼성전자주식회사 | 다중반송파 통신시스템을 위한 채널 상태정보 피드백 방법 |
KR100651454B1 (ko) * | 2004-03-05 | 2006-11-29 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 셀룰러 통신 시스템에서 부채널 할당 방법 |
MXPA06010110A (es) * | 2004-03-05 | 2007-03-07 | Nextnet Wireless Inc | Sistema y metodo para modulacion adaptadora. |
KR100617729B1 (ko) * | 2004-03-05 | 2006-08-28 | 삼성전자주식회사 | 셀룰러 통신 시스템에서 다중 주파수 재사용율 기반의 주파수 자원 할당 시스템 및 방법 |
JP4358271B2 (ja) * | 2004-03-05 | 2009-11-04 | サムスン エレクトロニクス カンパニー リミテッド | 多重搬送波を用いる広帯域無線通信システムにおける副搬送波割り当て方法及び装置 |
KR100922950B1 (ko) * | 2004-03-05 | 2009-10-22 | 삼성전자주식회사 | 직교주파수분할다중접속 방식을 기반으로 하는 이동통신시스템에서 데이터 프레임 처리 결과 송/수신장치 및 방법 |
KR100918736B1 (ko) * | 2004-03-05 | 2009-09-24 | 삼성전자주식회사 | 통신 시스템에서 파일럿 신호 송수신 장치 및 방법 |
KR100842588B1 (ko) * | 2004-03-12 | 2008-07-01 | 삼성전자주식회사 | 다중 반송파 전송 방식을 사용하는 광대역 무선 통신시스템의 부반송파 할당 방법 및 장치 |
KR100973946B1 (ko) * | 2004-03-12 | 2010-08-05 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 통신 시스템에서 밴드 적응적변조 및 코딩 서브 채널 운용을 위한 시스템 및 방법 |
KR100594111B1 (ko) * | 2004-03-12 | 2006-06-30 | 삼성전자주식회사 | 주파수 밴드별 다중 코딩을 사용하는 광대역 무선 접속시스템에서 데이터 전송 방법 및 시스템 |
WO2005089006A1 (ja) * | 2004-03-12 | 2005-09-22 | Matsushita Electric Industrial Co., Ltd. | スケジューリング方法及び基地局装置 |
KR100946923B1 (ko) | 2004-03-12 | 2010-03-09 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서 채널 품질 정보의 송수신 장치 및 방법, 그리고 그에 따른 시스템 |
EP1725059A4 (en) * | 2004-03-12 | 2012-08-22 | Panasonic Corp | METHOD FOR NOTIFYING RECEPTION QUALITY, WIRELESS COMMUNICATION TERMINAL APPARATUS, AND BASE STATION APPARATUS |
US7706350B2 (en) * | 2004-03-19 | 2010-04-27 | Qualcomm Incorporated | Methods and apparatus for flexible spectrum allocation in communication systems |
KR100620914B1 (ko) * | 2004-04-07 | 2006-09-13 | 삼성전자주식회사 | 광대역 무선통신시스템에서 에이엠씨 모드와 다이버시티 모드를 스위칭하기 위한 장치 및 방법 |
KR100724989B1 (ko) * | 2004-04-14 | 2007-06-04 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 통신시스템에서 전력 제어 장치 및 방법 |
KR100923389B1 (ko) * | 2004-04-15 | 2009-10-23 | 콸콤 인코포레이티드 | 다중-반송파 통신 방법 및 장치 |
KR101067772B1 (ko) * | 2004-04-22 | 2011-09-28 | 엘지전자 주식회사 | 직교 주파수 분할 다중화 방식에 적용되는 부반송파 할당방법 |
US7047006B2 (en) * | 2004-04-28 | 2006-05-16 | Motorola, Inc. | Method and apparatus for transmission and reception of narrowband signals within a wideband communication system |
KR100594084B1 (ko) * | 2004-04-30 | 2006-06-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 수신기의 채널 추정 방법 및 채널추정기 |
CN1965513B (zh) | 2004-05-01 | 2014-11-26 | 桥扬科技有限公司 | 用于以时分双工进行通信的方法和装置 |
EP1745571B1 (en) | 2004-05-01 | 2017-02-22 | Callahan Cellular L.L.C. | Methods and apparatus for multi-carrier communications with variable channel bandwidth |
DE602004011479T2 (de) * | 2004-05-04 | 2009-02-05 | Alcatel Lucent | Verfahren zur Interzell-Interferenzskoordination mit Leistungsplanung in einem OFDM-Mobilkommunikationssystem |
EP1594330A1 (en) * | 2004-05-04 | 2005-11-09 | Alcatel | Methods for terminal assisted coordinated radio serving and interference avoidance in OFDM mobile communication system |
EP1594331B1 (en) * | 2004-05-04 | 2008-04-23 | Alcatel Lucent | Method for terminal assisted coordinated interference avoidance in a radio communication system |
US20050249127A1 (en) * | 2004-05-10 | 2005-11-10 | Lucent Technologies, Inc. | Method for subcarrier allocation |
EP1603356B1 (en) | 2004-05-31 | 2011-09-28 | Samsung Electronics Co., Ltd. | Resource allocation method for a cellular communication system |
US7680475B2 (en) | 2004-06-09 | 2010-03-16 | Qualcomm Incorporated | Dynamic ASBR scheduler |
US8059589B2 (en) * | 2004-06-09 | 2011-11-15 | Qualcomm Incorporated | Dynamic restrictive reuse scheduler |
CN1998211B (zh) * | 2004-06-16 | 2010-05-12 | 三星电子株式会社 | 在使用正交频分多路接入方案的移动通信***中发送/接收数据的方法 |
US8452316B2 (en) | 2004-06-18 | 2013-05-28 | Qualcomm Incorporated | Power control for a wireless communication system utilizing orthogonal multiplexing |
US7724777B2 (en) * | 2004-06-18 | 2010-05-25 | Qualcomm Incorporated | Quasi-orthogonal multiplexing for a multi-carrier communication system |
US7197692B2 (en) | 2004-06-18 | 2007-03-27 | Qualcomm Incorporated | Robust erasure detection and erasure-rate-based closed loop power control |
CN101156322B (zh) | 2004-06-22 | 2013-11-20 | 苹果公司 | 用于在无线通信网络中实现反馈的方法和*** |
KR100943620B1 (ko) * | 2004-06-25 | 2010-02-24 | 삼성전자주식회사 | 다중 반송파 기반의 통신 시스템에서의 자원 할당 방법 |
KR100678149B1 (ko) | 2004-06-25 | 2007-02-02 | 삼성전자주식회사 | 광대역 무선 접속 통신 시스템에서 핸드오버 시 신호 처리장치 및 방법 |
GB2415870B (en) * | 2004-06-30 | 2006-12-06 | Samsung Electronics Co Ltd | Multi-carrier communications |
CN1998247B (zh) | 2004-06-30 | 2012-05-30 | 桥扬科技有限公司 | 用于多载波无线***中功率控制的方法和装置 |
KR100651556B1 (ko) * | 2004-06-30 | 2006-11-29 | 삼성전자주식회사 | 통신 시스템에서 cinr 추정 장치 및 방법 |
ATE442022T1 (de) * | 2004-07-13 | 2009-09-15 | Alcatel Lucent | Verfahren zur endgeräteunterstützen interferenzkontrolle in einem mehrträger- mobilkommunikationssystem |
US9294218B2 (en) * | 2004-07-16 | 2016-03-22 | Qualcomm Incorporated | Rate prediction in fractional reuse systems |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US8891349B2 (en) | 2004-07-23 | 2014-11-18 | Qualcomm Incorporated | Method of optimizing portions of a frame |
US8032145B2 (en) | 2004-07-23 | 2011-10-04 | Qualcomm Incorporated | Restrictive reuse set management algorithm for equal grade of service on FL transmission |
GB2416959B (en) * | 2004-07-30 | 2009-06-17 | Kyocera Corp | Communications systems |
KR100606049B1 (ko) * | 2004-08-27 | 2006-07-28 | 삼성전자주식회사 | 다중 셀 ofdma 망에서의 랜덤 접속 방법 |
US20060056282A1 (en) * | 2004-09-13 | 2006-03-16 | Suman Das | Method of scheduling and forward link resource allocation in OFDM systems |
FR2875658B1 (fr) * | 2004-09-21 | 2007-03-02 | Commissariat Energie Atomique | Estimation du rapport signal a interference plus bruit en sortie d'un recepteur ofdm-cdma. |
CN101036315B (zh) * | 2004-09-30 | 2010-10-06 | Lg电子株式会社 | 在ofdm/ofdma移动通信***中发射数据并估计信道信息的方法 |
US8018930B2 (en) | 2004-10-01 | 2011-09-13 | Qualcomm Incorporated | Apparatus and method for receiving packet data on a subset of carrier frequencies in a wireless communication system |
US8885452B2 (en) * | 2004-10-11 | 2014-11-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system of communication over channels of diverse channel characteristics |
BRPI0516493A (pt) | 2004-10-14 | 2008-09-09 | Qualcomm Flarion Tech | métodos e aparelho para determinar, comunicar e utilizar informações que podem ser usadas para fins de controle de interferência |
US8503938B2 (en) | 2004-10-14 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes |
US8797836B2 (en) * | 2004-10-15 | 2014-08-05 | Apple Inc. | Communication resource allocation systems and methods |
KR100974326B1 (ko) | 2004-10-28 | 2010-08-05 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식을 사용하는 통신시스템에서 동적 자원 할당 장치 및 방법 |
CN102868511B (zh) | 2004-10-29 | 2016-08-03 | 夏普株式会社 | 通信方法和无线发射机 |
JP4511906B2 (ja) | 2004-11-02 | 2010-07-28 | パナソニック株式会社 | 送信装置及び送信方法 |
JP4626771B2 (ja) * | 2004-11-02 | 2011-02-09 | 日本電気株式会社 | Ofdm通信システム |
KR100703442B1 (ko) * | 2004-11-12 | 2007-04-03 | 삼성전자주식회사 | 광대역 무선 접속 통신 시스템에서 핸드오버 방법 및 시스템 |
KR100635011B1 (ko) | 2004-11-16 | 2006-10-16 | 한국전자통신연구원 | 부채널수 변화에 따른 이득값 조절이 가능한직교주파수분할다중접속 시스템의 송신장치 및 그장치에서의 데이터 송신방법 |
EP1816772A1 (en) * | 2004-11-30 | 2007-08-08 | Matsusita Electric Industrial Co., Ltd. | Transmission control frame generation device, transmission control frame processing device, transmission control frame generation method, and transmission control frame processing method |
US7573851B2 (en) * | 2004-12-07 | 2009-08-11 | Adaptix, Inc. | Method and system for switching antenna and channel assignments in broadband wireless networks |
KR100705441B1 (ko) | 2004-12-10 | 2007-04-10 | 한국전자통신연구원 | 직교 주파수 분할 다중 시스템에서의 부반송파 할당 장치및 방법과, 부반송파 역할당 장치 및 방법 |
KR100667706B1 (ko) * | 2004-12-11 | 2007-01-12 | 한국전자통신연구원 | 직교주파수 분할 다중 접속 시스템의 상향 링크 부채널할당 장치 |
WO2006064740A1 (ja) * | 2004-12-13 | 2006-06-22 | Sharp Kabushiki Kaisha | Ofdm送信装置、ofdm受信装置及びofdm通信方法 |
KR100589896B1 (ko) | 2004-12-17 | 2006-06-14 | 한국전자통신연구원 | 직교 주파수 분할 다중 접속 시스템의 이동 단말 장치 및그 장치에서의 송신 전력 제어 방법 |
US8238923B2 (en) | 2004-12-22 | 2012-08-07 | Qualcomm Incorporated | Method of using shared resources in a communication system |
US7548752B2 (en) * | 2004-12-22 | 2009-06-16 | Qualcomm Incorporated | Feedback to support restrictive reuse |
US8831115B2 (en) | 2004-12-22 | 2014-09-09 | Qualcomm Incorporated | MC-CDMA multiplexing in an orthogonal uplink |
EP1835647A4 (en) * | 2004-12-28 | 2012-08-15 | Sharp Kk | WIRELESS TRANSMITTER, WIRELESS RECEIVER AND WIRELESS COMMUNICATION SYSTEM |
KR100981514B1 (ko) * | 2004-12-30 | 2010-09-10 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 통신 시스템에서 부분 채널 정보 피드백을 이용한 적응 부채널 및 비트 할당 방법 |
KR100909531B1 (ko) * | 2004-12-31 | 2009-07-27 | 삼성전자주식회사 | 멀티캐리어를 사용하는 통신 시스템에서 스케쥴링 장치 및방법 |
KR100617835B1 (ko) * | 2005-01-05 | 2006-08-28 | 삼성전자주식회사 | 통신 시스템에서 채널 품질 정보 송수신 장치 및 방법 |
WO2006075042A1 (en) * | 2005-01-11 | 2006-07-20 | Nokia Corporation | Method for indicating and detecting transmission resource allocations in a multi-user communication system |
EP1841112B1 (en) * | 2005-01-18 | 2014-06-04 | Fujitsu Limited | Transmitting method and transmitting apparatus in ofdm-cdma communication system |
WO2006077696A1 (ja) | 2005-01-18 | 2006-07-27 | Sharp Kabushiki Kaisha | 無線通信装置、携帯端末および無線通信方法 |
KR101030413B1 (ko) * | 2005-02-04 | 2011-04-20 | 재단법인서울대학교산학협력재단 | 셀룰러 통신 시스템에서 데이터 송수신 방법 및 이를 위한 송수신 장치 |
US20060176966A1 (en) * | 2005-02-07 | 2006-08-10 | Stewart Kenneth A | Variable cyclic prefix in mixed-mode wireless communication systems |
DE102005007326A1 (de) | 2005-02-17 | 2006-09-07 | Siemens Ag | Dynamische Zuweisung von Funkressourcen in einem Mehrträgerkommunikationssystem |
JPWO2006092899A1 (ja) * | 2005-02-28 | 2008-08-07 | 三菱電機株式会社 | 通信装置および通信方法 |
DE602005006726D1 (de) * | 2005-03-01 | 2008-06-26 | Alcatel Lucent | OFDM Unterträgerzuweisung in einem zellularen Mobilfunknetz |
EP1699198A1 (en) * | 2005-03-01 | 2006-09-06 | Alcatel | Distributing data on an OFDM time-frequency grid by gathering subcarriers in frequency diverse and frequency selective frequency patterns |
WO2006092856A1 (ja) * | 2005-03-02 | 2006-09-08 | Fujitsu Limited | マルチキャリア通信方法及びそれに使用される基地局及び移動局 |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US8942639B2 (en) | 2005-03-15 | 2015-01-27 | Qualcomm Incorporated | Interference control in a wireless communication system |
US8848574B2 (en) | 2005-03-15 | 2014-09-30 | Qualcomm Incorporated | Interference control in a wireless communication system |
US7512412B2 (en) * | 2005-03-15 | 2009-03-31 | Qualcomm, Incorporated | Power control and overlapping control for a quasi-orthogonal communication system |
US8446892B2 (en) | 2005-03-16 | 2013-05-21 | Qualcomm Incorporated | Channel structures for a quasi-orthogonal multiple-access communication system |
US9143305B2 (en) | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
CN102833685B (zh) | 2005-03-25 | 2016-01-27 | 桥扬科技有限公司 | 用于数据通信的方法和设备以及数据分发设备 |
JPWO2006109474A1 (ja) * | 2005-03-30 | 2008-10-23 | 松下電器産業株式会社 | 通信端末装置、基地局装置及びリソース割り当て方法 |
WO2006102771A1 (en) * | 2005-03-30 | 2006-10-05 | Nortel Networks Limited | Methods and systems for ofdm using code division multiplexing |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
JP4455389B2 (ja) * | 2005-04-01 | 2010-04-21 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信装置及び無線通信方法 |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US7715460B2 (en) | 2005-04-22 | 2010-05-11 | Interdigital Technology Corporation | Hybrid orthogonal frequency division multiple access system and method |
US7634277B2 (en) * | 2005-04-28 | 2009-12-15 | Cisco Technology, Inc. | Method for allocating channel resources for improving frequency utilization efficiency of wireless communication systems |
KR20060115293A (ko) * | 2005-05-04 | 2006-11-08 | 삼성전자주식회사 | Ofdma 방식의 시스템에서 채널의 구성 및 운용 방법과송수신 장치 및 방법 |
JP4703253B2 (ja) * | 2005-05-06 | 2011-06-15 | パナソニック株式会社 | 通信端末装置 |
FI20055211A0 (fi) | 2005-05-06 | 2005-05-06 | Nokia Corp | Radioresurssien hallinta FDMA järjestelmässä |
CN100431386C (zh) * | 2005-05-12 | 2008-11-05 | 上海原动力通信科技有限公司 | 同频多小区终端来波方向的估计方法 |
WO2006121302A1 (en) * | 2005-05-13 | 2006-11-16 | Samsung Electronics Co., Ltd. | Method and apparatus for indexing physical channels in an ofdma system |
US7564822B2 (en) * | 2005-05-19 | 2009-07-21 | Alcatel-Lucent Usa Inc. | Method of reverse link transmission in a wireless network using code and frequency multiplexing |
US9143950B2 (en) * | 2005-05-20 | 2015-09-22 | Go Net Systems Ltd. | Method and corresponding system for spectrum management |
US8077692B2 (en) * | 2005-05-20 | 2011-12-13 | Qualcomm Incorporated | Enhanced frequency division multiple access for wireless communication |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
JP4440831B2 (ja) | 2005-06-14 | 2010-03-24 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局装置、送信方法及び通信システム |
KR101137329B1 (ko) | 2005-06-15 | 2012-04-19 | 엘지전자 주식회사 | 다중 반송파 시스템에서의 부반송파 할당 방법 및 그 장치 |
CN101204100B (zh) | 2005-06-15 | 2011-01-05 | 华为技术有限公司 | 通信资源分配方法和*** |
US7894818B2 (en) * | 2005-06-15 | 2011-02-22 | Samsung Electronics Co., Ltd. | Apparatus and method for multiplexing broadcast and unicast traffic in a multi-carrier wireless network |
US20070002724A1 (en) * | 2005-06-15 | 2007-01-04 | Samsung Electronics Co., Ltd. | Apparatus and method for broadcast superposition and cancellation in a multi-carrier wireless network |
US8730877B2 (en) * | 2005-06-16 | 2014-05-20 | Qualcomm Incorporated | Pilot and data transmission in a quasi-orthogonal single-carrier frequency division multiple access system |
US9055552B2 (en) | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US8599945B2 (en) * | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
USRE47633E1 (en) | 2005-06-22 | 2019-10-01 | Odyssey Wireless Inc. | Systems/methods of conducting a financial transaction using a smartphone |
US8670493B2 (en) | 2005-06-22 | 2014-03-11 | Eices Research, Inc. | Systems and/or methods of increased privacy wireless communications |
CA2605556C (en) * | 2005-06-22 | 2013-06-11 | Yong-Jun Kwak | Method and transmission apparatus for allocating resources to transmit uplink packet data in an orthogonal frequency division multiplexing system |
US8462860B2 (en) * | 2008-07-07 | 2013-06-11 | Eices Research, Inc. | Increased capacity communications systems, methods and/or devices |
US7876845B2 (en) * | 2005-06-22 | 2011-01-25 | Eices Research, Inc. | Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility |
US8233554B2 (en) | 2010-03-29 | 2012-07-31 | Eices Research, Inc. | Increased capacity communications for OFDM-based wireless communications systems/methods/devices |
US20070005550A1 (en) * | 2005-06-24 | 2007-01-04 | Alexander Klein | Finding a hexagonal cell containing an X, Y position |
US20070015469A1 (en) * | 2005-06-27 | 2007-01-18 | Samsung Electronics Co., Ltd. | Dynamic channel allocation method in an OFDMA mobile communication system |
JP4641877B2 (ja) * | 2005-06-28 | 2011-03-02 | シャープ株式会社 | 送信制御方法、端末側送信方法、干渉電力測定方法、制御局装置および端末装置 |
US8064424B2 (en) * | 2005-07-22 | 2011-11-22 | Qualcomm Incorporated | SDMA for WCDMA |
US7751510B2 (en) * | 2005-07-26 | 2010-07-06 | Qualcomm Incorporated | Simplified channel and interference estimation with dedicated pilot tones for OFDMA |
EP1911173B1 (en) | 2005-07-27 | 2018-09-12 | BlackBerry Limited | Pilots for frequency division multiple access communications |
EP1750405B1 (en) * | 2005-08-01 | 2007-06-27 | Alcatel Lucent | Reducing overhead for channel allocation in downlink of a multicarrier system |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US7782964B1 (en) * | 2005-08-09 | 2010-08-24 | Sprint Spectrum L.P. | Method and system for frequency band allocation based on frequency band usage measurements |
US20070036067A1 (en) * | 2005-08-12 | 2007-02-15 | Interdigital Technology Corporation | Method and apparatus for sending downlink control information in an orthogonal frequency division multiple access system |
US20070036121A1 (en) * | 2005-08-12 | 2007-02-15 | George Cherian | Method and apparatus for providing reverse activity information in a multi-carrier communication system |
EP1917772A4 (en) * | 2005-08-22 | 2012-02-22 | Korea Electronics Telecomm | METHOD FOR PROVIDING BROADCAST / MULTICAST SERVICE DATA IN A CELLULAR OFDM SYSTEM AND SENDING / RECEIVING METHOD, DEVICE AND SYSTEM THEREWITH |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US20070064665A1 (en) | 2005-08-23 | 2007-03-22 | Interdigital Technology Corporation | Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system |
US7738422B2 (en) * | 2005-08-23 | 2010-06-15 | Alcatel-Lucent Usa Inc. | Interference-reducing method of forward link scheduling for wireless networks |
EP1929803B1 (en) * | 2005-08-23 | 2014-03-05 | Microsoft Corporation | Methods and systems to mitigate inter-cell interference |
US8077690B2 (en) * | 2005-08-24 | 2011-12-13 | Motorola Mobility, Inc. | Resource allocation in cellular communication systems |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US7680458B2 (en) * | 2005-08-25 | 2010-03-16 | Samsung Electronics Co., Ltd. | Interference cancellation method and module for OFDMA mobile communication system |
KR101119281B1 (ko) * | 2005-08-29 | 2012-03-15 | 삼성전자주식회사 | 무선 통신 시스템에서 채널 품질 정보 피드백 장치 및방법과 이를 이용한 스케줄링 장치 및 방법 |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
DE102005041273B4 (de) | 2005-08-31 | 2014-05-08 | Intel Mobile Communications GmbH | Verfahren zum rechnergestützten Bilden von Systeminformations-Medium-Zugriffs-Steuerungs-Protokollnachrichten, Medium-Zugriffs-Steuerungs-Einheit und Computerprogrammelement |
GB0517843D0 (en) * | 2005-09-02 | 2005-10-12 | Pace Micro Tech Plc | Flexible data partitioning in systems using wideband channel bonding modems |
WO2007029965A1 (en) * | 2005-09-06 | 2007-03-15 | Electronics And Telecommunications Research Institute | Method for resource partition, assignment, transmission and reception for inter-cell interference migration in downlink of ofdm cellular systems |
JP4960245B2 (ja) * | 2005-09-22 | 2012-06-27 | シャープ株式会社 | 通信端末装置、通信制御装置、通信システムおよび通信方法 |
US7783406B2 (en) | 2005-09-22 | 2010-08-24 | Reagan Inventions, Llc | System for controlling speed of a vehicle |
CN101273601A (zh) * | 2005-09-27 | 2008-09-24 | 高通股份有限公司 | 用于在多载波通信***中进行载波分配和管理的方法和装置 |
US9955438B2 (en) * | 2005-09-27 | 2018-04-24 | Qualcomm Incorporated | Method and apparatus for carrier allocation and management in multi-carrier communication systems |
US8693430B2 (en) | 2005-09-28 | 2014-04-08 | Neocific, Inc. | Method and system for multi-carrier packet communication with reduced overhead |
WO2007038750A1 (en) * | 2005-09-28 | 2007-04-05 | Neocific, Inc. | Method and system for multi-carrier packet communication with reduced overhead |
KR100810231B1 (ko) * | 2005-09-28 | 2008-03-06 | 삼성전자주식회사 | 무선 통신 시스템에서 다중 안테나를 이용한 신호 송신방법 및 장치 |
JP2009510898A (ja) * | 2005-09-30 | 2009-03-12 | ミツビシ・エレクトリック・リサーチ・ラボラトリーズ・インコーポレイテッド | Mimoワイヤレスlanにおけるアンテナ及びビームを選択するためのトレーニング信号 |
US7835750B2 (en) | 2005-10-07 | 2010-11-16 | Samsung Electronics Co., Ltd. | Multi-carrier wireless network using flexible fractional frequency reuse |
KR100714945B1 (ko) * | 2005-10-12 | 2007-05-07 | 엘지노텔 주식회사 | 오에프디엠에이 시스템에서의 부채널 할당 장치 및 방법 |
US8694042B2 (en) | 2005-10-14 | 2014-04-08 | Qualcomm Incorporated | Method and apparatus for determining a base station's transmission power budget |
US9191840B2 (en) | 2005-10-14 | 2015-11-17 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information which can be used for interference control |
US8576872B2 (en) * | 2005-10-19 | 2013-11-05 | Qualcomm Incorporated | Multi-hop wireless mesh network medium access control protocol |
CA2622449A1 (en) * | 2005-10-26 | 2007-05-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for mitigation of inter-cell interference in a mobile telecommunication network |
US8199661B2 (en) | 2005-10-27 | 2012-06-12 | Qualcomm Incorporated | Method and apparatus for processing supplemental and non supplemental assignments |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
EP1941638A2 (en) | 2005-10-27 | 2008-07-09 | Qualcomm Incorporated | Method and apparatus for estimating reverse link loading in a wireless communication system |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9210651B2 (en) * | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US20090207790A1 (en) | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
JP2007124578A (ja) * | 2005-10-31 | 2007-05-17 | Ntt Docomo Inc | 複数の信号帯域幅を定義する無線通信システムにおける送受信帯域幅設定方法、移動端末および基地局 |
US7796717B2 (en) * | 2005-11-02 | 2010-09-14 | Magnolia Brandband Inc. | Modifying a signal according to a diversity parameter adjustment |
KR101259100B1 (ko) * | 2005-11-04 | 2013-04-26 | 엘지전자 주식회사 | Ofdm 또는 ofdma 무선 이동통신 시스템에서의초기 동기를 위한 신호 전송 방법, 초기 동기 획득 방법 및이동통신용 단말 |
US7965649B2 (en) * | 2005-11-04 | 2011-06-21 | Samsung Electronics Co., Ltd. | Apparatus and method for feedback of subcarrier quality estimation in an OFDM/OFDMA system |
US8218563B2 (en) * | 2005-11-04 | 2012-07-10 | Samsung Electronics Co., Ltd. | Method and system for providing adaptive modulation and coding in a multi-carrier wireless network |
FR2893468A1 (fr) * | 2005-11-17 | 2007-05-18 | France Telecom | Codage d'information pour voie de retour d'un systeme radio-mobile |
FR2893474A1 (fr) * | 2005-11-17 | 2007-05-18 | France Telecom | Procede de codage d'information pour voie de retour d'un systeme sdma, terminal utilisateur et station de base d'un tel systeme |
CN1968239A (zh) * | 2005-11-17 | 2007-05-23 | 松下电器产业株式会社 | 用于多小区正交频分多址***的载波分配方法 |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
US7586990B2 (en) * | 2005-11-22 | 2009-09-08 | Motorola, Inc. | Method and system for allocating subcarriers to subscriber devices |
KR101050597B1 (ko) * | 2005-11-22 | 2011-07-19 | 삼성전자주식회사 | 통신 시스템에서 데이터 레이트 제어 방법 및 시스템 |
US7957745B2 (en) * | 2005-11-23 | 2011-06-07 | Motorola Mobility, Inc. | Adaptive bearer configuration for broadcast/multicast service |
CN1777161B (zh) * | 2005-12-02 | 2010-04-28 | 山东大学 | 一种移动宽带信道中的自适应选频分块传输方法 |
KR100691430B1 (ko) | 2005-12-05 | 2007-03-09 | 한국전자통신연구원 | 이동통신 시스템에서 제한된 궤환 정보를 이용한 적응 송신방법 및 장치 |
KR101315478B1 (ko) | 2005-12-08 | 2013-10-07 | 한국전자통신연구원 | 단말기 및 그 송신 전력 제어 방법 |
KR100659725B1 (ko) * | 2005-12-09 | 2006-12-19 | 한국전자통신연구원 | 다중 안테나 시스템의 송신 장치 및 방법과, 수신 장치 및방법 |
KR100729730B1 (ko) | 2005-12-09 | 2007-06-20 | 한국전자통신연구원 | Ofdma 시스템에서 밴드 amc 부채널의 부반송파할당 장치 및 방법 |
US9813867B2 (en) | 2005-12-15 | 2017-11-07 | Polte Corporation | Angle of arrival (AOA) positioning method and system for positional finding and tracking objects using reduced attenuation RF technology |
US10091616B2 (en) | 2005-12-15 | 2018-10-02 | Polte Corporation | Angle of arrival (AOA) positioning method and system for positional finding and tracking objects using reduced attenuation RF technology |
US7593384B2 (en) * | 2005-12-15 | 2009-09-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Efficient channel quality reporting and link adaptation for multi-carrier broadband wireless communication |
US20070249360A1 (en) | 2005-12-22 | 2007-10-25 | Arnab Das | Methods and aparatus related to determining, communicating, and/or using delay information in a wireless communications system |
US9572179B2 (en) | 2005-12-22 | 2017-02-14 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US9119220B2 (en) | 2005-12-22 | 2015-08-25 | Qualcomm Incorporated | Methods and apparatus for communicating backlog related information |
US20070149249A1 (en) * | 2005-12-22 | 2007-06-28 | Interdigital Technology Corporation | Method and apparatus for efficient configuration of hybrid sub-carrier allocation |
US20070149132A1 (en) | 2005-12-22 | 2007-06-28 | Junyl Li | Methods and apparatus related to selecting control channel reporting formats |
US9148795B2 (en) | 2005-12-22 | 2015-09-29 | Qualcomm Incorporated | Methods and apparatus for flexible reporting of control information |
US8514771B2 (en) | 2005-12-22 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for communicating and/or using transmission power information |
US9338767B2 (en) | 2005-12-22 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus of implementing and/or using a dedicated control channel |
US9451491B2 (en) | 2005-12-22 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system |
US9473265B2 (en) | 2005-12-22 | 2016-10-18 | Qualcomm Incorporated | Methods and apparatus for communicating information utilizing a plurality of dictionaries |
US9137072B2 (en) | 2005-12-22 | 2015-09-15 | Qualcomm Incorporated | Methods and apparatus for communicating control information |
US9125093B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus related to custom control channel reporting formats |
US8437251B2 (en) | 2005-12-22 | 2013-05-07 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US9125092B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus for reporting and/or using control information |
US8223817B2 (en) * | 2005-12-29 | 2012-07-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for frequency hopping in wireless communication systems with carriers of varying bandwidth |
ATE509456T1 (de) * | 2006-01-03 | 2011-05-15 | Alcatel Lucent | Zeitplanung von regelungskanälen in mehrträgervermittlungssystemen |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
DE602006001353D1 (de) * | 2006-01-13 | 2008-07-10 | Alcatel Lucent | Adaptive Subträger- Zuteilung zu einer Mobilstation in einem multicell FDM oder OFDM Netzwerk |
WO2007084862A2 (en) * | 2006-01-13 | 2007-07-26 | Qualcomm Incorporated | Localized and distributed allocation multiplexing and control |
EP1809058B1 (de) * | 2006-01-17 | 2008-05-28 | Alcatel Lucent | Verfahren zum Minimieren der Interferenz in einem zellulären OFDM Kommunikationssystem sowie Basisstation und Mobilstation hierfür |
JP4440895B2 (ja) | 2006-01-18 | 2010-03-24 | 株式会社エヌ・ティ・ティ・ドコモ | 送信装置および送信方法 |
HUE028521T2 (en) | 2006-01-18 | 2016-12-28 | Ntt Docomo Inc | Base station, communication terminal, transmission method and reception procedure |
CN102625454B (zh) * | 2006-01-18 | 2016-06-08 | 艾利森电话股份有限公司 | 集中式和分布式传输 |
CN101405950B (zh) * | 2006-01-18 | 2013-09-11 | 株式会社Ntt都科摩 | 发送装置和发送方法 |
JP4776634B2 (ja) * | 2006-01-19 | 2011-09-21 | パナソニック株式会社 | 無線送信装置及び無線送信方法 |
CN101009541B (zh) * | 2006-01-23 | 2011-04-20 | 华为技术有限公司 | 正交频分多址***的干扰协调方法与装置 |
CN101379753B (zh) * | 2006-02-03 | 2012-06-27 | Lg电子株式会社 | 无线通信***中基于反馈信息发送至少一个子分组的方法 |
WO2007091874A1 (en) * | 2006-02-11 | 2007-08-16 | Samsung Electronics Co., Ltd. | Procede et systeme d'attribution de ressources de transmission et d'indication des ressources de transmission attribuees pour une diversite de frequence |
KR101002897B1 (ko) * | 2006-02-15 | 2010-12-21 | 한국과학기술원 | 이동 통신 시스템에서 채널 할당 시스템 및 방법 |
US8260340B2 (en) | 2006-02-17 | 2012-09-04 | Alcatel Lucent | Methods of reverse link power control |
US8027306B2 (en) * | 2006-02-17 | 2011-09-27 | Lg Electronics Inc. | Miscellaneous improvements on the HRPD system |
KR101062674B1 (ko) * | 2006-02-18 | 2011-09-06 | 삼성전자주식회사 | 무선 통신 시스템에서 자원을 할당하고 통신을 수행하는 장치 및 방법 |
EP1988728A4 (en) * | 2006-02-24 | 2011-02-02 | Mitsubishi Electric Corp | COMMUNICATION DEVICE |
US8005175B2 (en) * | 2006-03-17 | 2011-08-23 | Futurewei Technologies, Inc. | Method and apparatus for interference mitigation in an OFDMA-based communication system |
WO2007108077A1 (ja) * | 2006-03-17 | 2007-09-27 | Fujitsu Limited | 基地局装置、移動局装置およびサブキャリア割り当て方法 |
FI20065183A0 (fi) * | 2006-03-20 | 2006-03-20 | Nokia Corp | Kanavan laadun signalointi |
US7818013B2 (en) * | 2006-03-20 | 2010-10-19 | Intel Corporation | Downlink channel parameters determination for a multiple-input-multiple-output (MIMO) system |
US20070218915A1 (en) * | 2006-03-20 | 2007-09-20 | Futurewei Technologies, Inc. | Wireless communication resource allocation and related signaling |
US8131306B2 (en) * | 2006-03-20 | 2012-03-06 | Intel Corporation | Wireless access network and method for allocating data subcarriers within a downlink subframe based on grouping of user stations |
JP4673778B2 (ja) * | 2006-03-23 | 2011-04-20 | 株式会社日立製作所 | 無線通信方法 |
US8340018B2 (en) * | 2006-04-06 | 2012-12-25 | Hitachi, Ltd. | Wireless communication system, radio base station apparatus and radio terminal apparatus |
US20070237254A1 (en) * | 2006-04-10 | 2007-10-11 | Nokia Corporation | Configuring a device for wireless communication |
US20070243882A1 (en) | 2006-04-12 | 2007-10-18 | Qualcomm Incorporated | Method and apparatus for locating a wireless local area network associated with a wireless wide area network |
US7933344B2 (en) * | 2006-04-25 | 2011-04-26 | Mircosoft Corporation | OFDMA based on cognitive radio |
CN101064703A (zh) * | 2006-04-25 | 2007-10-31 | 北京三星通信技术研究有限公司 | Ofdm接入基站中基站发射信号的正交化方法及*** |
JP4823756B2 (ja) | 2006-04-27 | 2011-11-24 | 京セラ株式会社 | 移動体通信システム、基地局装置及び移動体通信システムの周波数割当方法 |
ES2555777T3 (es) | 2006-04-28 | 2016-01-08 | Panasonic Intellectual Property Corporation Of America | Dispositivo de estación base de comunicación de radio y método de comunicación de radio usado para comunicación multi-portadora |
US8189621B2 (en) * | 2006-05-12 | 2012-05-29 | Microsoft Corporation | Stack signaling to application with lack of requested bandwidth |
CN101047683B (zh) * | 2006-05-16 | 2011-06-15 | 华为技术有限公司 | 一种无线信号发射/接收方法及发射/接收装置 |
US8320924B2 (en) * | 2006-05-25 | 2012-11-27 | Nokia Corporation | Interference control in a communication system |
EP2023516A4 (en) * | 2006-05-26 | 2012-05-02 | Mitsubishi Electric Corp | SCHEDULING METHOD AND COMMUNICATION DEVICE |
US7826349B2 (en) * | 2006-05-30 | 2010-11-02 | Intel Corporation | Connection management mechanism |
JP4986702B2 (ja) * | 2006-06-02 | 2012-07-25 | 京セラ株式会社 | 割当方法およびそれを利用した基地局装置 |
KR100785853B1 (ko) * | 2006-06-05 | 2007-12-14 | 한국전자통신연구원 | 직교 주파수 분할 다중 접속 시스템에서의 자원 할당 방법 |
WO2007147107A2 (en) * | 2006-06-16 | 2007-12-21 | Qualcomm Incorporated | Encoding information in beacon signals |
JP5242025B2 (ja) | 2006-06-19 | 2013-07-24 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局および送信方法 |
US20090227261A1 (en) * | 2006-07-07 | 2009-09-10 | Nokia Corporation | Radio resource allocation mechanism |
EP2039194A1 (en) * | 2006-07-11 | 2009-03-25 | Nokia Corporation | Data transmission method, base station and user transceiver |
DE102006032495A1 (de) * | 2006-07-13 | 2008-02-07 | Nokia Siemens Networks Gmbh & Co.Kg | Verfahren und Vorrichtung zur Vermeidung von Interferenzen in einem zellulären Funkkommunikationssystem |
US8432852B2 (en) | 2006-07-14 | 2013-04-30 | Qualcomm Incorporated | Uplink timing control signal |
US7869421B2 (en) * | 2006-07-14 | 2011-01-11 | Qualcomm Incorporated | Uplink access request in an OFDM communication environment |
US20080020772A1 (en) * | 2006-07-21 | 2008-01-24 | Adaptix, Inc. | Systems and methods for reduced overhead in wireless communication networks having SDMA modulation |
JP4769870B2 (ja) * | 2006-07-27 | 2011-09-07 | 富士通株式会社 | 無線通信システム、基地局装置及び移動局装置 |
KR100749819B1 (ko) | 2006-07-28 | 2007-08-17 | 한국전자통신연구원 | 폐루프 다중 안테나를 이용한 직교 주파수 분할 다중화시스템에서 채널변화율에 따라 부반송파를 보간하는 방법 |
US8509323B2 (en) * | 2006-08-22 | 2013-08-13 | Motorola Mobility Llc | Resource allocation including a DC sub-carrier in a wireless communication system |
US8400998B2 (en) * | 2006-08-23 | 2013-03-19 | Motorola Mobility Llc | Downlink control channel signaling in wireless communication systems |
JP4845644B2 (ja) | 2006-08-29 | 2011-12-28 | 三洋電機株式会社 | 通信方法およびそれを利用した無線装置 |
KR100753369B1 (ko) * | 2006-08-30 | 2007-08-30 | 주식회사 팬택 | 이동통신 시스템의 셀간 간섭을 저감하는 방법 |
KR100756335B1 (ko) * | 2006-09-08 | 2007-09-06 | 삼성전자주식회사 | 직교주파수분할다중접속시스템의 심볼간 간섭 제거 방법 및시스템 |
US8442572B2 (en) | 2006-09-08 | 2013-05-14 | Qualcomm Incorporated | Method and apparatus for adjustments for delta-based power control in wireless communication systems |
US8670777B2 (en) | 2006-09-08 | 2014-03-11 | Qualcomm Incorporated | Method and apparatus for fast other sector interference (OSI) adjustment |
EP2070374A2 (en) * | 2006-09-14 | 2009-06-17 | Interdigital Technology Corporation | Wireless communication method and apparatus for assigning cell and resource blocks |
US20080084853A1 (en) | 2006-10-04 | 2008-04-10 | Motorola, Inc. | Radio resource assignment in control channel in wireless communication systems |
KR100959331B1 (ko) | 2006-10-13 | 2010-05-20 | 삼성전자주식회사 | 광대역 무선통신 시스템에서 세그먼트 할당 장치 및 방법 |
US8494546B2 (en) | 2006-10-16 | 2013-07-23 | Stmicroelectronics, Inc. | Method of inter-system communications dynamic spectrum access network systems-logical control connections |
US7869400B2 (en) * | 2006-10-16 | 2011-01-11 | Stmicroelectronics, Inc. | Method of inter-system coexistence and spectrum sharing for dynamic spectrum access networks-on-demand spectrum contention |
TWI452884B (zh) | 2006-11-01 | 2014-09-11 | Qualcomm Inc | 次頻帶相依資源管理 |
KR101138175B1 (ko) * | 2006-11-03 | 2012-04-25 | 모토로라 모빌리티, 인크. | 무선 통신 시스템에서의 원격 유닛의 스케줄링 |
UA99906C2 (ru) * | 2006-11-06 | 2012-10-25 | Квелкомм Інкорпорейтед | Способ управления мощностью пердачи в зависимости от загрузки поддиапазона |
FI20065698A0 (fi) | 2006-11-06 | 2006-11-06 | Nokia Corp | Radioresurssien allokointi ja radiojärjestelmä |
KR101089448B1 (ko) * | 2006-11-10 | 2011-12-07 | 후지쯔 가부시끼가이샤 | 무선 통신 시스템 |
CN102196416B (zh) * | 2006-11-10 | 2014-11-19 | 富士通株式会社 | 无线通信***及无线终端装置 |
JP4818081B2 (ja) | 2006-11-30 | 2011-11-16 | 京セラ株式会社 | 割当方法およびそれを利用した基地局装置 |
KR100835285B1 (ko) * | 2006-12-06 | 2008-06-05 | 한국전자통신연구원 | 빔 형성 방법 및 이를 위한 빔 형성 장치 |
CN101589642B (zh) * | 2006-12-08 | 2013-10-09 | 夏普株式会社 | 通信控制装置、通信终端装置、无线通信***以及通信方法 |
KR101045180B1 (ko) * | 2006-12-08 | 2011-06-28 | 후지쯔 가부시끼가이샤 | 간섭 저감 방법 및 기지국 장치 |
US8144793B2 (en) * | 2006-12-12 | 2012-03-27 | Microsoft Corporation | Cognitive multi-user OFDMA |
JP2008160720A (ja) * | 2006-12-26 | 2008-07-10 | Fujitsu Ltd | 複数のセクタ対応の送信部を備えた無線基地局及び複数のセクタ用の信号の送信方法 |
US7933346B2 (en) * | 2006-12-27 | 2011-04-26 | Intel Corporation | Base station and method for mitigating interference in a sectorized communication network |
EP2418798A3 (en) * | 2006-12-28 | 2015-06-03 | Sharp Kabushiki Kaisha | Base station, radio transmission device, radio communication system, and communication method |
US8130867B2 (en) | 2007-01-05 | 2012-03-06 | Qualcomm Incorporated | Pilot design for improved channel and interference estimation |
PT2515587T (pt) | 2007-01-11 | 2020-12-09 | Qualcomm Inc | Utilização de dtx e drx num sistema de comunicação sem fios |
WO2008085009A1 (en) * | 2007-01-13 | 2008-07-17 | Samsung Electronics Co., Ltd. | Method and system for transmitting and receiving signal using multiple frequency bands in a wireless communication system |
KR100897769B1 (ko) | 2007-01-24 | 2009-05-15 | 삼성전자주식회사 | 채널 상태 정보 추정방법 및 그 장치 |
CN108540245A (zh) * | 2007-01-31 | 2018-09-14 | 夏普株式会社 | 基站装置以及创建基站装置的干扰信息指标表的方法 |
US7826389B2 (en) * | 2007-02-07 | 2010-11-02 | Nokia Corporation | Communications method |
US8515356B2 (en) * | 2007-02-08 | 2013-08-20 | Ntt Docomo, Inc. | Radio communication system, least significant station, and most significant station |
BRPI0721210B1 (pt) * | 2007-02-09 | 2020-01-07 | Telecom Italia S.P.A. | Método para caracterizar interferência em um sistema de radiocomunicação, sistema de radiocomunicação, memória, e, método para mitigar interferência em um sistema de radiocomunicação |
US8320352B2 (en) * | 2007-03-02 | 2012-11-27 | Qualcomm Incorporated | Robust transmission scheme for wireless networks |
FI20075157A0 (fi) * | 2007-03-05 | 2007-03-05 | Nokia Corp | Menetelmä ja järjestelmä resurssien varaamiseksi |
US7873010B2 (en) * | 2007-03-07 | 2011-01-18 | Motorola Mobility, Inc. | Control signaling resource assignment in wireless communication networks |
KR20080082891A (ko) * | 2007-03-09 | 2008-09-12 | 한국전자통신연구원 | Ofdma 시스템에서 부채널 할당 방법 및 그 장치 |
CA2681029C (en) | 2007-03-15 | 2015-11-24 | Interdigital Technology Corporation | Method and apparatus for feedback overhead reduction in wireless communications |
KR100966250B1 (ko) * | 2007-03-19 | 2010-06-28 | 삼성전자주식회사 | 광대역 무선 이동통신 시스템에서 상향링크 피드백 데이터 전송 장치 및 방법 |
JP4906915B2 (ja) * | 2007-03-20 | 2012-03-28 | 三菱電機株式会社 | 無線通信方法、無線通信システムおよび基地局 |
US8855637B2 (en) * | 2007-03-21 | 2014-10-07 | Wi-Lan, Inc. | Methods and apparatus for performing handoff based on the mobility of a subscriber station |
CN101136894B (zh) * | 2007-03-23 | 2012-11-28 | 中兴通讯股份有限公司 | 可扩展的ofdm及ofdma带宽分配的方法和*** |
US7929623B2 (en) * | 2007-03-30 | 2011-04-19 | Microsoft Corporation | FEC in cognitive multi-user OFDMA |
US9219570B2 (en) * | 2007-05-07 | 2015-12-22 | Nokia Technologies Oy | Feedback and link adaptation techniques for wireless networks |
US7970085B2 (en) | 2007-05-08 | 2011-06-28 | Microsoft Corporation | OFDM transmission and reception for non-OFDMA signals |
JP4848309B2 (ja) | 2007-05-10 | 2011-12-28 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局装置及び通信制御方法 |
US8130880B1 (en) | 2007-05-23 | 2012-03-06 | Hypress, Inc. | Wideband digital spectrometer |
US8219030B2 (en) * | 2007-06-20 | 2012-07-10 | Qualcomm Incorporated | Adaptive distributed frequency planning |
CN101335972B (zh) * | 2007-06-29 | 2012-01-04 | 华为技术有限公司 | 一种边界小区的配置调整方法及网元管理*** |
JP5087083B2 (ja) | 2007-07-09 | 2012-11-28 | シャープ株式会社 | スケジューリング方法および制御局装置 |
KR101343056B1 (ko) | 2007-07-19 | 2013-12-18 | 한국과학기술원 | 직교 주파수 분할 다중 접속 시스템에서 부채널 할당 장치및 방법 |
EP2387161B1 (en) | 2007-07-23 | 2020-01-22 | Sony Corporation | Method for transmitting a signal between a transmitter and a receiver in a power line network, transmitter, receiver, power line communication modem and powerline communication system |
JP5399389B2 (ja) | 2007-08-06 | 2014-01-29 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Lteシステムにおけるofdmaアップリンクの干渉による影響の回復 |
JP5320293B2 (ja) | 2007-08-07 | 2013-10-23 | シャープ株式会社 | 基地局装置、端末装置および通信システム |
CN109104266A (zh) | 2007-08-08 | 2018-12-28 | Lm爱立信电话有限公司 | 用于在无线通信网络中配置探测信号的方法和装置 |
CN101365187B (zh) | 2007-08-09 | 2011-08-10 | 华为技术有限公司 | 一种实现上行资源指示的方法、基站和用户终端 |
EP2026488A1 (en) * | 2007-08-14 | 2009-02-18 | Panasonic Corporation | Contiguous CQI report |
CN101374017B (zh) * | 2007-08-21 | 2012-12-19 | 中兴通讯股份有限公司 | 基于ofdm***的物理资源块分配方法 |
ES2395180T3 (es) * | 2007-08-31 | 2013-02-08 | Koninklijke Philips Electronics N.V. | Transmisión multiusuario mejorada |
KR100910178B1 (ko) * | 2007-09-05 | 2009-07-30 | 재단법인서울대학교산학협력재단 | 다중 사용자 다중 송수신 안테나 장치 및 그 방법 |
US7813739B2 (en) * | 2007-09-27 | 2010-10-12 | Koon Hoo Teo | Method for reducing inter-cell interference in wireless OFDMA networks |
EP2887723A1 (en) * | 2007-12-04 | 2015-06-24 | Fujitsu Limited | Scheduling method and wireless base station and wireless terminal |
JP4734314B2 (ja) * | 2007-12-10 | 2011-07-27 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
KR100943763B1 (ko) | 2007-12-12 | 2010-02-23 | 한국전자통신연구원 | 이동통신망에서 채널을 추정하는 방법 및 이를 수행하는장치 |
US8154419B2 (en) * | 2007-12-14 | 2012-04-10 | Halliburton Energy Services Inc. | Oilfield area network communication system and method |
EP2073419B1 (en) | 2007-12-20 | 2011-10-26 | Panasonic Corporation | Control channel signaling using a common signaling field for transport format and redundancy version |
KR101430487B1 (ko) * | 2007-12-24 | 2014-08-18 | 엘지전자 주식회사 | 다중 대역 무선 주파수 기반 신호 송수신 방법 |
US8824432B2 (en) * | 2008-01-16 | 2014-09-02 | Stmicroelectronics, Inc. | Beaconing period framing for efficient multi-channel inter-cell communications in cognitive radio networks |
US8780882B2 (en) * | 2008-01-16 | 2014-07-15 | Stmicroelectronics, Inc. | On-demand spectrum contention for inter-cell spectrum sharing in cognitive radio networks |
US8374130B2 (en) | 2008-01-25 | 2013-02-12 | Microsoft Corporation | Orthogonal frequency division multiple access with carrier sense |
EP2232805B1 (en) * | 2008-01-25 | 2017-03-15 | Telefonaktiebolaget LM Ericsson (publ) | A method to modify the frequency hopping scheme by extending the validity of the reference signals |
JP2009188537A (ja) * | 2008-02-04 | 2009-08-20 | Fujitsu Ltd | 基地局及び既知信号の送信方法 |
JP4353302B2 (ja) * | 2008-02-12 | 2009-10-28 | 日本電気株式会社 | マルチキャリア通信基地局装置及びサブキャリア割り当て方法 |
KR101451984B1 (ko) | 2008-03-25 | 2014-10-21 | 삼성전자주식회사 | 광대역 무선 통신 시스템에서 제어 채널을 송수신하는 방법및 장치와 이를 위한 제어 채널 후보군의 설정 방법 |
US8203998B2 (en) * | 2008-03-28 | 2012-06-19 | Qualcomm Incorporated | System and methods for cancelling interference in a communication system |
KR101100227B1 (ko) * | 2008-04-02 | 2011-12-28 | 엘지전자 주식회사 | 주파수 분할 다중 액세스 방식에서 로컬화 및 분산된 멀티플렉싱 다운링크 |
GB0807338D0 (en) * | 2008-04-22 | 2008-05-28 | Nokia Siemens Networks Oy | An apparatus |
US8503283B2 (en) * | 2008-06-12 | 2013-08-06 | Nokia Corporation | Channel access protocol for wireless communication |
US8194623B2 (en) * | 2008-06-27 | 2012-06-05 | Ntt Docomo, Inc. | Evolving-type user resource structure/channelization with enhanced diversity for OFDMA based time-varying channels |
WO2010001454A1 (ja) | 2008-06-30 | 2010-01-07 | 富士通株式会社 | 無線リソースの割り当て方法、基地局、移動局 |
US8737383B2 (en) * | 2008-07-07 | 2014-05-27 | Intel Corporation | Techniques for enhanced persistent scheduling with efficient link adaptation capability |
US9374746B1 (en) | 2008-07-07 | 2016-06-21 | Odyssey Wireless, Inc. | Systems/methods of spatial multiplexing |
US9226300B2 (en) * | 2008-07-11 | 2015-12-29 | Qualcomm Incorporated | Hierarchical control channel structure for wireless communication |
US8665803B2 (en) * | 2008-07-31 | 2014-03-04 | Qualcomm Incorporated | Tone selection in communication networks |
US8249540B1 (en) | 2008-08-07 | 2012-08-21 | Hypres, Inc. | Two stage radio frequency interference cancellation system and method |
US8385288B2 (en) | 2008-08-20 | 2013-02-26 | Qualcomm Incorporated | Multi-channel SDMA |
KR100963903B1 (ko) * | 2008-08-27 | 2010-06-17 | 주식회사 케이티 | 직교 주파수 분할 다중 접속 시스템에서 가상 셀을 이용하여 부채널을 할당하는 방법 및 시스템 |
KR101593662B1 (ko) * | 2008-09-05 | 2016-02-12 | 한국전자통신연구원 | 다중 반송파 관리 장치 및 방법 |
JP4734389B2 (ja) * | 2008-09-11 | 2011-07-27 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
KR101540815B1 (ko) * | 2008-09-24 | 2015-08-07 | 엘지전자 주식회사 | 무선통신 시스템에서의 상향링크와 하향링크를 위한 무선자원의 관리 방법 |
US8254247B2 (en) * | 2008-10-20 | 2012-08-28 | Lg Electronics Inc. | Method and apparatus for transmitting signal in a wireless communication system |
WO2010045752A1 (zh) * | 2008-10-20 | 2010-04-29 | 上海贝尔阿尔卡特股份有限公司 | Tdd家庭基站的载频选择方法及载频调整装置 |
WO2010047511A2 (en) * | 2008-10-20 | 2010-04-29 | Lg Electronics Inc. | Method and apparatus for transmitting signal in a wireless communication system |
KR101061131B1 (ko) | 2008-10-20 | 2011-08-31 | 엘지전자 주식회사 | 무선 통신 시스템에서의 신호 전송 방법 및 이를 위한 장치 |
US8934395B2 (en) * | 2008-10-24 | 2015-01-13 | Qualcomm Incorporated | Method and apparatus for uplink network MIMO in a wireless communication system |
US8923125B2 (en) | 2008-10-24 | 2014-12-30 | Qualcomm Incorporated | Wireless network resource adaptation |
KR20110087275A (ko) * | 2008-11-03 | 2011-08-02 | 노텔 네트웍스 리미티드 | 협력 멀티 포인트 송신 및 수신을 위한 무선 통신 클러스터링 방법 및 시스템 |
US8031670B2 (en) * | 2008-11-13 | 2011-10-04 | Telefonaktiebolaget L M Ericsson (Publ) | Systems and methods for selecting the size of a control region of a downlink subframe |
US8718585B2 (en) * | 2008-11-14 | 2014-05-06 | Intel Mobile Communications GmbH | Method and device for radio communication |
US8855087B2 (en) * | 2008-12-18 | 2014-10-07 | Microsoft Corporation | Wireless access point supporting control by multiple applications |
JP5014322B2 (ja) * | 2008-12-19 | 2012-08-29 | 日本電信電話株式会社 | 基地局装置及び無線通信方法 |
EP2381602B1 (en) * | 2008-12-22 | 2015-12-16 | Hitachi, Ltd. | Method of positioning of signal |
BRPI0924178B1 (pt) * | 2008-12-26 | 2021-09-08 | Sharp Kabushiki Kaisha | Aparelho de estação móvel, aparelho de estação base, e método de gerenciamento em um aparelho de estação móvel |
ES2726702T3 (es) | 2009-01-15 | 2019-10-08 | Adaptive Biotechnologies Corp | Perfilado de la inmunidad adaptativa y métodos para la generación de anticuerpos monoclonales |
JP5077249B2 (ja) * | 2009-01-15 | 2012-11-21 | 富士通株式会社 | 無線基地局、無線リソース割り当て方法、無線通信システム |
US8559993B2 (en) * | 2009-02-03 | 2013-10-15 | Qualcomm Incorporated | Method for managing sub-band preference order in a wireless communication system |
US8780821B2 (en) * | 2009-02-20 | 2014-07-15 | Qualcomm Incorporated | Channel interleaver for transmission of multiple code blocks in a wireless communication system |
US8107887B2 (en) * | 2009-02-27 | 2012-01-31 | Motorola Solutions, Inc. | Narrowband system and method for defining narrowband wideband channels in unused wideband channels |
US20100220651A1 (en) * | 2009-03-02 | 2010-09-02 | Mediatek Inc. | Method and apparatus for broadcasting and receiving system information in OFDMA systems |
US8768264B2 (en) | 2009-03-03 | 2014-07-01 | Qualcomm Incorporated | Method and system for reducing feedback information in multicarrier-based communication systems based on temporal correlation |
US7974178B2 (en) * | 2009-03-31 | 2011-07-05 | Intel Corporation | Pilot method for 802.16m |
KR101568274B1 (ko) | 2009-05-29 | 2015-11-20 | 삼성전자주식회사 | 협력 멀티-포인트 송신을 위한 클러스터링 방법 및 통신 장치 |
WO2010142909A1 (fr) * | 2009-06-09 | 2010-12-16 | France Telecom | Procede et dispositifs d'emission et reception de symboles multi porteuse |
US8238323B2 (en) * | 2009-06-11 | 2012-08-07 | Intel Corporation | OFDMA cellular network and method for mitigating interference |
US8219128B2 (en) * | 2009-06-12 | 2012-07-10 | Telefonaktiebolaget L M Ericsson (Publ) | Network-centric link adaptation for coordinated multipoint downlink transmission |
US8849326B2 (en) | 2009-06-12 | 2014-09-30 | Telefonaktiebolaget L M Ericsson (Publ) | Network-centric link adaptation for coordinated multipoint downlink transmission |
US8711769B2 (en) * | 2009-07-16 | 2014-04-29 | Telefonaktiebolaget L M Ericsson (Publ) | Interferer region identification using image processing |
US8437298B2 (en) * | 2009-07-29 | 2013-05-07 | Qualcomm Incorporated | Methods and apparatus for blind interference decrease/cancellation techniques |
CN102474483A (zh) * | 2009-08-20 | 2012-05-23 | 日本电气株式会社 | 无线通信*** |
WO2011025131A2 (en) * | 2009-08-28 | 2011-03-03 | Lg Electronics Inc. | Method and apparatus for transmitting pilot in wireless communication system |
GB0916001D0 (en) * | 2009-09-11 | 2009-10-28 | Univ Edinburgh | Inter-carrier modulation |
JP4896196B2 (ja) * | 2009-10-01 | 2012-03-14 | 株式会社エヌ・ティ・ティ・ドコモ | 協調送信方法、協調送信システム、集約局及び無線基地局 |
JP5396238B2 (ja) * | 2009-11-02 | 2014-01-22 | 株式会社Nttドコモ | 無線通信制御方法、基地局装置及び移動端末装置 |
US9712276B2 (en) * | 2009-11-10 | 2017-07-18 | Lantiq Beteiligungs-GmbH & Co. KG | Error reporting in multi-carrier signal communication |
CN102792653A (zh) * | 2009-12-08 | 2012-11-21 | 开普敦大学 | 用于提高动态频谱访问多载波***中的信道估计性能的方法 |
CN102104409B (zh) * | 2009-12-22 | 2014-05-07 | ***通信集团公司 | 智能天线加权系数的确定方法、干扰源的确定方法及装置 |
WO2011088619A1 (en) * | 2010-01-22 | 2011-07-28 | Nokia Corporation | Cellular control sensing for multi-cell device-to-device interference control |
US8213376B2 (en) * | 2010-02-17 | 2012-07-03 | King Fahd University Of Petroleum And Minerals | OFDMA power allocation method |
US8185120B2 (en) * | 2010-03-26 | 2012-05-22 | Microsoft Corporation | Cellular service with improved service availability |
US9806790B2 (en) | 2010-03-29 | 2017-10-31 | Odyssey Wireless, Inc. | Systems/methods of spectrally efficient communications |
US8616274B2 (en) | 2010-05-07 | 2013-12-31 | Halliburton Energy Services, Inc. | System and method for remote wellbore servicing operations |
CN102256258B (zh) * | 2010-05-19 | 2013-11-20 | ***通信集团公司 | 载频资源的分配方法及载频资源的分配装置 |
KR101655269B1 (ko) * | 2010-05-28 | 2016-09-07 | 삼성전자주식회사 | 무선통신시스템에서 자원분배 장치 및 방법 |
US8358932B2 (en) * | 2010-07-06 | 2013-01-22 | Prasanna Adhikari | All-optical data center network |
US10491357B2 (en) * | 2010-07-12 | 2019-11-26 | Entropic Communications Llc | Method and apparatus for using dynamic subchannels in a communications network |
KR101132620B1 (ko) * | 2010-08-25 | 2012-04-06 | 한국과학기술원 | 직교 주파수 분할 다중 액세스 시스템에서의 스케줄링 장치 및 방법 |
CN102387525B (zh) * | 2010-08-27 | 2015-04-22 | ***通信集团公司 | 载波配置方法、装置及*** |
US8917586B2 (en) | 2010-10-01 | 2014-12-23 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
JP4785982B2 (ja) * | 2010-10-22 | 2011-10-05 | パナソニック株式会社 | 無線通信装置、無線通信方法及び無線通信システム |
JP5698375B2 (ja) * | 2010-11-11 | 2015-04-08 | 聯發科技股▲ふん▼有限公司Mediatek Inc. | チャネル状態情報測定を設定する方法、および、それを用いた通信装置 |
WO2012092314A2 (en) * | 2010-12-29 | 2012-07-05 | Mediatek Singapore Pte. Ltd. | Methods for determining a loading of a wireless communications system and communication apparatuses utilizing the same |
KR101215957B1 (ko) | 2011-01-14 | 2012-12-27 | 한국전자통신연구원 | 동적 부분 주파수 재사용 기법을 이용한 서브채널 할당 방법 및 장치 |
US8812008B2 (en) * | 2011-03-28 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus for assigning resources to schedule peer-to-peer communications in WWAN |
US20120269142A1 (en) * | 2011-04-24 | 2012-10-25 | Broadcom Corporation | Doppler adaptation using pilot patterns within single user, multiple user, multiple access, and/or MIMO wireless communications |
US8767619B1 (en) * | 2011-05-17 | 2014-07-01 | Sprint Spectrum L.P. | Minimizing adjacent carrier interference by varying the power level of subcarriers |
JP5306416B2 (ja) * | 2011-06-01 | 2013-10-02 | パナソニック株式会社 | 端末装置、無線通信方法、基地局装置及び送受信方法 |
US11835639B2 (en) | 2011-08-03 | 2023-12-05 | Qualcomm Technologies, Inc. | Partially synchronized multilateration or trilateration method and system for positional finding using RF |
CN104618978B (zh) | 2011-08-10 | 2018-06-12 | 宏达国际电子股份有限公司 | 移动通信装置以及在多个异质网络间进行交递的方法 |
US8908492B2 (en) * | 2011-08-11 | 2014-12-09 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
WO2013023170A1 (en) | 2011-08-11 | 2013-02-14 | Research In Motion Limited | Orthogonal resource selection transmit diversity and resource assignment |
US8891353B2 (en) | 2011-08-11 | 2014-11-18 | Blackberry Limited | Orthogonal resource selection transmit diversity and resource assignment |
JP5984346B2 (ja) * | 2011-08-15 | 2016-09-06 | 株式会社Nttドコモ | 無線通信システム、無線基地局装置、ユーザ端末及び無線通信方法 |
JP2013046131A (ja) * | 2011-08-23 | 2013-03-04 | Mitsubishi Electric Research Laboratories Inc | 時間変化的および周波数選択的なチャネルを推定するための方法 |
US8693953B2 (en) * | 2011-09-28 | 2014-04-08 | Verizon Patent And Licensing Inc. | Optimizing use of network resources by small cells and/or user devices of a venue |
CN108449299B (zh) * | 2011-10-07 | 2022-01-14 | 英特尔公司 | 用于低功率无线网络中的通信的方法和设置 |
KR20130085480A (ko) * | 2011-12-07 | 2013-07-30 | 한국전자통신연구원 | 데이터 통신 장치와 방법 및 데이터 통신 시스템과 방법 |
FR2984658A1 (fr) * | 2011-12-19 | 2013-06-21 | France Telecom | Etablissement de l'indicateur de qualite d'un canal radio par decorrelation des conditions radio et de l'activite reseau |
JP5900884B2 (ja) * | 2012-02-17 | 2016-04-06 | シャープ株式会社 | 制御局装置、および無線通信システム |
EP3372694A1 (en) | 2012-03-05 | 2018-09-12 | Adaptive Biotechnologies Corporation | Determining paired immune receptor chains from frequency matched subunits |
KR101880972B1 (ko) * | 2012-04-02 | 2018-07-23 | 삼성전자주식회사 | 무선 통신시스템의 다층 클러스터링 장치 및 방법 |
MX354329B (es) | 2012-05-08 | 2018-02-27 | Adaptive Biotechnologies Corp | Composiciones y metodos para medir y calibrar el error de amplificacion en reacciones de pcr multiple. |
US10098095B2 (en) | 2012-05-25 | 2018-10-09 | Qualcomm Incorporated | Feedback to enhance rate prediction with bursty interference |
WO2013187710A1 (ko) * | 2012-06-13 | 2013-12-19 | 한국전자통신연구원 | 무선랜 시스템의 오퍼레이팅 모드 변경 방법 및 무선랜 시스템 |
US20140025418A1 (en) * | 2012-07-19 | 2014-01-23 | International Business Machines Corporation | Clustering Based Resource Planning, Work Assignment, and Cross-Skill Training Planning in Services Management |
US10863313B2 (en) | 2014-08-01 | 2020-12-08 | Polte Corporation | Network architecture and methods for location services |
US10440512B2 (en) | 2012-08-03 | 2019-10-08 | Polte Corporation | Angle of arrival (AOA) positioning method and system for positional finding and tracking objects using reduced attenuation RF technology |
GB2504985A (en) | 2012-08-16 | 2014-02-19 | Univ Manchester | Managing interference between a plurality of sub-carriers on the basis of interference indications contained in measurement reports |
US9351190B2 (en) | 2012-10-15 | 2016-05-24 | Headwater Partners LLC | Interference characterization based on scheduling a transmission mode |
US9332455B2 (en) | 2012-10-15 | 2016-05-03 | Headwater Partners Ii Llc | Scheduling a user equipment transmission mode to assist uplink interference characterization |
US9350515B2 (en) | 2012-10-15 | 2016-05-24 | Headwater Partners LLC | Enhanced relay node with additional backhaul alternative and selection |
US9094868B2 (en) | 2012-10-15 | 2015-07-28 | Headwater Partners Ii Llc | User equipment link quality estimation based on positioning |
US9413502B2 (en) | 2012-10-15 | 2016-08-09 | Headwater Partners LLC | Backhaul assisted by user equipment |
US9692630B2 (en) * | 2012-11-28 | 2017-06-27 | Sony Corporation | Receiver for receiving data in a broadcast system |
EP2926488A1 (en) * | 2012-11-28 | 2015-10-07 | Sony Corporation | Receiver for receiving data in a broadcast system using redundancy data |
US9755781B2 (en) | 2012-11-28 | 2017-09-05 | Sony Corporation | Broadcast system and method for error correction using redundant data |
US9068584B2 (en) * | 2013-01-04 | 2015-06-30 | Newpark Mats & Integrated Services Llc | Apparatus and methods for connecting mats |
CN109511120B (zh) * | 2013-01-30 | 2023-05-16 | 索尼公司 | 用于无线通信网络的通信方法和装置以及无线通信网络 |
US9544171B2 (en) * | 2013-02-12 | 2017-01-10 | Nokia Solutions And Networks Oy | Zero insertion for ISI free OFDM reception |
US9686052B2 (en) | 2013-02-20 | 2017-06-20 | Mitsubishi Electric Corporation | Communication-line-quality estimating apparatus, transmitter, and receiver |
CN105052229A (zh) * | 2013-03-26 | 2015-11-11 | 英派尔科技开发有限公司 | 移动网络中的预测频谱分配 |
CN104080182A (zh) * | 2013-03-29 | 2014-10-01 | 国际商业机器公司 | 无线通信终端的干扰处理方法和*** |
CN105393577B (zh) * | 2013-05-13 | 2019-06-14 | 日本电气株式会社 | 通信***中估计负载的方法、设备、无线电站和上层装置 |
US20170055266A1 (en) * | 2013-06-11 | 2017-02-23 | Empire Technology Development Llc | Smooth transition between predictive and mobile-assisted spectral allocation |
WO2014200512A1 (en) | 2013-06-11 | 2014-12-18 | Empire Technology Development, Llc | Smooth transition between predictive and mobile-assisted spectral allocation |
US20140378054A1 (en) * | 2013-06-19 | 2014-12-25 | Qualcomm Incorporated | Opportunistic use of the dsrc spectrum |
US9708657B2 (en) | 2013-07-01 | 2017-07-18 | Adaptive Biotechnologies Corp. | Method for generating clonotype profiles using sequence tags |
US10314092B2 (en) | 2013-08-16 | 2019-06-04 | Lg Electronics Inc. | Signal transmission method in device-to-device communication and apparatus therefor |
US9755711B2 (en) * | 2013-09-09 | 2017-09-05 | Taiwan Semiconductor Manufacturing Company, Ltd. | Large deviation delay analysis of queue-aware multi-user MIMO systems with multi-timescale mobile-driven feedback |
US10009053B2 (en) * | 2013-09-27 | 2018-06-26 | Qualcomm Incorporated | Measurement and signaling for network assistance to enable data-IC in small cell clusters |
US9392468B1 (en) * | 2013-10-30 | 2016-07-12 | Sprint Communications Company L.P. | Adaptive beamforming techniques in long term evolution networks |
KR20150054055A (ko) * | 2013-11-08 | 2015-05-20 | 한국전자통신연구원 | 셀룰러 통신 시스템에서의 자원 할당 방법 및 장치 |
US9825678B2 (en) | 2013-11-26 | 2017-11-21 | Marvell World Trade Ltd. | Uplink multi-user multiple input multiple output for wireless local area network |
WO2015081269A1 (en) | 2013-11-27 | 2015-06-04 | Marvell Semiconductor, Inc. | Sounding and tone block allocation for orthogonal frequency division multiple access (ofdma) in wireless local area networks |
EP3114240B1 (en) | 2014-03-05 | 2019-07-24 | Adaptive Biotechnologies Corporation | Methods using randomer-containing synthetic molecules |
US10066265B2 (en) | 2014-04-01 | 2018-09-04 | Adaptive Biotechnologies Corp. | Determining antigen-specific t-cells |
EP3132059B1 (en) | 2014-04-17 | 2020-01-08 | Adaptive Biotechnologies Corporation | Quantification of adaptive immune cell genomes in a complex mixture of cells |
US9807767B2 (en) * | 2014-09-10 | 2017-10-31 | Qualcomm Incorporated | Systems and methods for allocating tones between users in wireless communication systems |
WO2016048429A1 (en) | 2014-09-26 | 2016-03-31 | Intel IP Corporation | Increased carrier monitoring |
EP3715455A1 (en) | 2014-10-29 | 2020-09-30 | Adaptive Biotechnologies Corp. | Highly-multiplexed simultaneous detection of nucleic acids encoding paired adaptive immune receptor heterodimers from many samples |
US10246701B2 (en) | 2014-11-14 | 2019-04-02 | Adaptive Biotechnologies Corp. | Multiplexed digital quantitation of rearranged lymphoid receptors in a complex mixture |
US10396948B2 (en) | 2015-01-07 | 2019-08-27 | Northeastern University | Ultrasonic multiplexing network for implantable medical devices |
CA2981004C (en) * | 2015-01-07 | 2024-04-09 | Northeastern University | Ultrasonic multiplexing network for implantable medical devices |
US10523348B2 (en) * | 2015-01-16 | 2019-12-31 | RF DSP Inc. | Uplink signal to interference plus noise ratio estimation for massive MIMO communication systems |
JP6471514B2 (ja) * | 2015-01-27 | 2019-02-20 | 日本電気株式会社 | 無線通信システム、制御装置、基地局、制御方法、プログラム |
CA2976580A1 (en) | 2015-02-24 | 2016-09-01 | Adaptive Biotechnologies Corp. | Methods for diagnosing infectious disease and determining hla status using immune repertoire sequencing |
FR3034271B1 (fr) * | 2015-03-26 | 2018-05-18 | Airbus Operations (S.A.S.) | Reseau de communication embarque d'un vehicule et commutateur d'un tel reseau de communication |
EP3277294B1 (en) | 2015-04-01 | 2024-05-15 | Adaptive Biotechnologies Corp. | Method of identifying human compatible t cell receptors specific for an antigenic target |
EP3082287A1 (en) * | 2015-04-16 | 2016-10-19 | Gemalto M2M GmbH | Method for uplink communication in a lte cellular network |
US10686487B2 (en) * | 2015-06-23 | 2020-06-16 | Eridan Communications, Inc. | Universal transmit/receive module for radar and communications |
CN106401330B (zh) | 2015-07-29 | 2020-12-04 | 株式会社有信 | 门把手装置 |
US10266994B2 (en) | 2015-09-10 | 2019-04-23 | Newpark Mats & Integrated Services Llc | Apparatus and methods for connecting components of a support surface |
CN108293172B (zh) * | 2015-10-08 | 2021-11-05 | 波尔特公司 | 用于追踪对象的到达角度定位*** |
US10057910B2 (en) | 2016-02-11 | 2018-08-21 | Microsoft Technology Licensing, Llc | Multiplexed unequal error protection for wireless networks |
CN105887713A (zh) * | 2016-04-29 | 2016-08-24 | 闫鹏飞 | 一种可移动停车位 |
KR102543179B1 (ko) * | 2016-08-22 | 2023-06-14 | 삼성전자주식회사 | 발광다이오드 모듈 제조방법 |
US10498593B2 (en) * | 2016-09-07 | 2019-12-03 | Qualcomm Incorporated | Cell-specific reference signal (CRS) and control channel configuration in wireless communications |
US10650621B1 (en) | 2016-09-13 | 2020-05-12 | Iocurrents, Inc. | Interfacing with a vehicular controller area network |
US10428325B1 (en) | 2016-09-21 | 2019-10-01 | Adaptive Biotechnologies Corporation | Identification of antigen-specific B cell receptors |
GB201618065D0 (en) * | 2016-10-26 | 2016-12-07 | University Court Of The University Of Edinburgh | Multiuser access for optical communications |
KR20180053038A (ko) * | 2016-11-11 | 2018-05-21 | 주식회사 에치에프알 | Ofdm 무선통신시스템에서 트래픽 기반의 서브캐리어 동적 할당 제어방법 및 그를 위한 장치 |
ES2894889T3 (es) | 2016-12-27 | 2022-02-16 | Ericsson Telefon Ab L M | Estimación de la condición del canal |
CN108271258B (zh) * | 2016-12-31 | 2020-07-14 | ***通信集团吉林有限公司 | 一种载波分配方法及设备 |
US11191123B2 (en) | 2017-02-03 | 2021-11-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for performing uplink transmission |
US10673652B2 (en) * | 2017-03-02 | 2020-06-02 | Futurewei Technologies, Inc. | System and method for providing explicit feedback in the uplink |
US9949277B1 (en) * | 2017-07-27 | 2018-04-17 | Saankhya Labs Pvt. Ltd. | System and method for mitigating co-channel interference in white space modems using interference aware techniques |
WO2019049390A1 (ja) * | 2017-09-08 | 2019-03-14 | パナソニックIpマネジメント株式会社 | 通信装置、通信システム、及び通信方法 |
US10015717B1 (en) * | 2017-10-25 | 2018-07-03 | Sprint Spectrum Lp | Cell reselection priority based on properties of communication bands |
US11254980B1 (en) | 2017-11-29 | 2022-02-22 | Adaptive Biotechnologies Corporation | Methods of profiling targeted polynucleotides while mitigating sequencing depth requirements |
US11255945B2 (en) | 2018-03-27 | 2022-02-22 | Polte Corporation | Multi-path mitigation in tracking objects using compressed RF data |
CA3110328A1 (en) * | 2018-08-20 | 2020-02-27 | Imcon International Inc | Advanced narrow band traffic controller units (tcu) and their use in omni-grid systems |
CN112654053B (zh) * | 2019-10-11 | 2023-06-02 | 广州海格通信集团股份有限公司 | 干扰状态反馈信息生成方法、装置、设备和存储介质 |
CN112654054B (zh) * | 2019-10-11 | 2023-04-18 | 广州海格通信集团股份有限公司 | 干扰测量方法、装置、计算机设备和可读存储介质 |
JP7127081B2 (ja) * | 2020-03-31 | 2022-08-29 | アンリツ株式会社 | 信号処理装置とその信号測定方法 |
KR20230010661A (ko) | 2020-04-30 | 2023-01-19 | 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 | 무선 자원에 관한 송신 방식의 파라미터 기반 적응 |
EP3944687B1 (fr) * | 2020-07-23 | 2024-05-01 | Vogo | Système de radiocommunication avec résistance aux perturbations radio |
US20230308248A1 (en) * | 2020-08-25 | 2023-09-28 | Interdigital Patent Holdings, Inc. | Methods and procedures for orthogonal radar communication |
CN113056014B (zh) * | 2021-03-12 | 2021-10-19 | 北京电信易通信息技术股份有限公司 | 一种下行irs-noma多簇用户的功率分配方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997001256A1 (en) * | 1995-06-22 | 1997-01-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive channel allocation in a frequency division multiplexed system |
EP0822682A1 (en) * | 1996-07-05 | 1998-02-04 | Deutsche Thomson-Brandt Gmbh | Method for the frequency correction of multicarrier signals and related apparatus |
EP0869647A2 (en) * | 1997-04-01 | 1998-10-07 | Lucent Technologies Inc. | System of multicarreir modulation with dynamically scalable operating parameters |
US6144696A (en) * | 1997-12-31 | 2000-11-07 | At&T Corp. | Spread spectrum bit allocation algorithm |
Family Cites Families (562)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US555268A (en) * | 1896-02-25 | Thirds to braxton r | ||
US720329A (en) * | 1900-11-22 | 1903-02-10 | Junius Ford Cook | Apparatus for hoisting or lowering material. |
EP1050987B1 (fr) | 1999-04-21 | 2001-10-31 | Alcatel | Procédé d'accès multiple de type CDMA à capacité améliorée |
DE3125125C2 (de) * | 1981-06-26 | 1985-05-09 | Union Special Gmbh, 7000 Stuttgart | Spanneinrichtung für Nähmaschinen |
US4355411A (en) * | 1980-03-24 | 1982-10-19 | Bell Telephone Laboratories, Incorporated | Technique for efficient spectrum utilization in mobile radio systems using space diversity |
JPS58137302A (ja) | 1982-02-10 | 1983-08-15 | Toshiba Corp | アダプテイブアンテナ |
GB8323966D0 (en) | 1983-09-07 | 1983-10-12 | British Telecomm | Frequency control for point-to-multipoint radio |
US4488445A (en) | 1983-10-28 | 1984-12-18 | Honeywell Inc. | Integrated silicon accelerometer with cross-axis compensation |
JPH0629922B2 (ja) | 1984-07-11 | 1994-04-20 | ウエスト電気株式会社 | 自動露出制御装置 |
US4675863A (en) | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
JPH0311561Y2 (zh) | 1986-03-31 | 1991-03-20 | ||
JPH0738943B2 (ja) | 1986-05-27 | 1995-05-01 | ダイセル化学工業株式会社 | 複合構造物 |
JPH0738943Y2 (ja) | 1986-10-24 | 1995-09-06 | 三菱自動車工業株式会社 | 表示装置 |
US4794635A (en) | 1986-11-28 | 1988-12-27 | Motorola, Inc. | Two-way radio communication system with max-minimum call assignment method |
EP0283683B1 (en) | 1987-03-20 | 1994-01-12 | Hitachi, Ltd. | Portable wireless communication systems and method |
JPH07105157B2 (ja) | 1987-09-10 | 1995-11-13 | 日本電気株式会社 | 冗長メモリセル使用判定回路 |
JPH0629922Y2 (ja) | 1987-10-02 | 1994-08-17 | ヤンマー農機株式会社 | 育苗箱移載装置 |
JPH01317035A (ja) | 1988-06-17 | 1989-12-21 | Iwatsu Electric Co Ltd | 移動体通信の通信方法 |
SE463540B (sv) | 1988-09-19 | 1990-12-03 | Ericsson Telefon Ab L M | Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet |
JP2619507B2 (ja) | 1988-11-21 | 1997-06-11 | 日本電信電話株式会社 | 移動通信方式 |
US5200957A (en) * | 1989-06-26 | 1993-04-06 | Telefonaktiebolaget L M Ericsson | Mobile assisted handoff |
US5265119A (en) | 1989-11-07 | 1993-11-23 | Qualcomm Incorporated | Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system |
JP2719619B2 (ja) | 1989-11-28 | 1998-02-25 | 日本電信電話株式会社 | 移動通信チャネル割当て制御方法 |
US5038399A (en) * | 1990-05-21 | 1991-08-06 | Motorola, Inc. | Method for assigning channel reuse levels in a multi-level cellular system |
WO1992000590A1 (en) | 1990-06-27 | 1992-01-09 | Mos Electronics Corporation | Random access cache memory |
NZ239283A (en) | 1990-08-23 | 1994-09-27 | Ericsson Telefon Ab L M | Mobile cellular radio: handoff between half rate and full rate channels according to estimated received signal quality |
US5212831A (en) | 1990-11-28 | 1993-05-18 | Bell Communications Research, Inc. | Method and apparatus for autonomous adaptive frequency assignment in TDMA portable radio systems |
US5351269A (en) * | 1990-12-05 | 1994-09-27 | Scs Mobilecom, Inc. | Overlaying spread spectrum CDMA personal communications system |
CA2032325C (en) * | 1990-12-14 | 1998-07-07 | Leo Strawczynski | Intra-cell call hand-over in radio communication systems with dynamic channel allocation |
DE69233003T2 (de) * | 1991-05-29 | 2004-01-22 | Nec Corp. | Kanalzuweisungsverfahren in Mobil-Kommunikationssystem |
US5319634A (en) | 1991-10-07 | 1994-06-07 | Phoenix Corporation | Multiple access telephone extension systems and methods |
US5323447A (en) | 1991-11-01 | 1994-06-21 | At&T Bell Laboratories | Apparatus and method for modifying a frequency hopping sequence of a cordless telephone operating in a frequency hopping system |
US5515378A (en) | 1991-12-12 | 1996-05-07 | Arraycomm, Inc. | Spatial division multiple access wireless communication systems |
US5546090A (en) | 1991-12-12 | 1996-08-13 | Arraycomm, Inc. | Method and apparatus for calibrating antenna arrays |
US5828658A (en) | 1991-12-12 | 1998-10-27 | Arraycomm, Inc. | Spectrally efficient high capacity wireless communication systems with spatio-temporal processing |
US5592490A (en) | 1991-12-12 | 1997-01-07 | Arraycomm, Inc. | Spectrally efficient high capacity wireless communication systems |
US5260967A (en) | 1992-01-13 | 1993-11-09 | Interdigital Technology Corporation | CDMA/TDMA spread-spectrum communications system and method |
US5280630A (en) * | 1992-01-21 | 1994-01-18 | Motorola, Inc. | Method and apparatus for dynamic channel allocation |
US5345599A (en) | 1992-02-21 | 1994-09-06 | The Board Of Trustees Of The Leland Stanford Junior University | Increasing capacity in wireless broadcast systems using distributed transmission/directional reception (DTDR) |
SE9200607D0 (sv) | 1992-02-28 | 1992-02-28 | Ericsson Telefon Ab L M | Communication methods and mean in a tdma cellular mobile radio system |
US5267261A (en) | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
CA2332405C (en) * | 1992-03-26 | 2007-01-23 | Matsushita Electric Industrial Co., Ltd. | Communication system |
US5291475B1 (en) * | 1992-03-27 | 1995-06-27 | Motorola Inc | Slot hopped fd/td/cmda |
US5282222A (en) * | 1992-03-31 | 1994-01-25 | Michel Fattouche | Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum |
US5555268A (en) | 1994-01-24 | 1996-09-10 | Fattouche; Michel | Multicode direct sequence spread spectrum |
JPH05292010A (ja) * | 1992-04-10 | 1993-11-05 | Fujitsu Ltd | 無線チャネル割当て方法および装置 |
US5448750A (en) | 1992-04-22 | 1995-09-05 | Telefonaktiebolaget Lm Ericsson | Segregation method of dynamic channel allocation in a mobile radio system |
JP2959288B2 (ja) | 1992-07-10 | 1999-10-06 | 松下電器産業株式会社 | 移動通信方法およびその装置 |
NZ255617A (en) | 1992-09-04 | 1996-11-26 | Ericsson Telefon Ab L M | Tdma digital radio: measuring path loss and setting transmission power accordingly |
EP0599500B1 (en) * | 1992-11-20 | 2000-04-19 | Ntt Mobile Communications Network Inc. | Frequency diversity transmitter and receiver |
DE4302228C2 (de) | 1993-01-27 | 1999-09-30 | Deutsche Telekom Mobil | Verfahren zur Zuweisung von Frequenzen zu Basisstationen eines Mobilfunknetzes |
FR2701178A1 (fr) | 1993-02-03 | 1994-08-05 | Philips Electronique Lab | Système de communication par étalement de spectre à multiutilisateurs. |
US5437054A (en) | 1993-02-05 | 1995-07-25 | The Research Foundation Of State University Of New York | Method and apparatus of assigning and sharing channels in a cellular communication system |
US5404167A (en) * | 1993-03-12 | 1995-04-04 | At&T Corp. | Subband color video coding using a reduced motion information subband |
CA2119983C (en) | 1993-03-25 | 1999-05-11 | Mitsuaki Oshima | Communication system |
US5471647A (en) | 1993-04-14 | 1995-11-28 | The Leland Stanford Junior University | Method for minimizing cross-talk in adaptive transmission antennas |
US5634199A (en) * | 1993-04-14 | 1997-05-27 | Stanford University | Method of subspace beamforming using adaptive transmitting antennas with feedback |
US5479447A (en) | 1993-05-03 | 1995-12-26 | The Board Of Trustees Of The Leland Stanford, Junior University | Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines |
US5405048A (en) * | 1993-06-22 | 1995-04-11 | Kvm Technologies, Inc. | Vacuum operated medicine dispenser |
JP3114442B2 (ja) | 1993-07-26 | 2000-12-04 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信のゾーン切替制御方法 |
DE4325190A1 (de) | 1993-07-27 | 1995-02-02 | Siemens Ag | Funksystem mit Frequenz-Optimierung |
US5444697A (en) | 1993-08-11 | 1995-08-22 | The University Of British Columbia | Method and apparatus for frame synchronization in mobile OFDM data communication |
US5492837A (en) * | 1993-08-27 | 1996-02-20 | Biogenex Laboratories | Mounting medium for microscope slide preparations |
US5507034A (en) * | 1993-09-01 | 1996-04-09 | Telefonaktiebolaget Lm Ericsson | Channel selection in a cellular communication system |
DE69307343T2 (de) * | 1993-09-24 | 1997-04-24 | Nokia Telecommunications Oy, Espoo | Verfahren und einrichtung zur steuerung der signalqualität in einem cdma-zellularkommunikationssystem |
SE503548C2 (sv) * | 1993-10-01 | 1996-07-01 | Telia Ab | Anordning i OFDM fleranvändarsystem |
US5410538A (en) * | 1993-11-09 | 1995-04-25 | At&T Corp. | Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system |
US5481571A (en) * | 1993-11-12 | 1996-01-02 | Pacific Communication Sciences, Inc. | Method and apparatus for switching between radio frequency circuits |
CA2118273C (en) | 1993-11-23 | 2000-04-25 | Pi-Hui Chao | Method and apparatus for dynamic channel allocation for wireless communication |
JP2636712B2 (ja) | 1993-12-08 | 1997-07-30 | 日本電気株式会社 | 移動通信装置 |
US5838673A (en) | 1993-12-16 | 1998-11-17 | Geotek Industries, Inc. | Radio telephone system for minimizing co-channel interference utilizing geographic separation of signals and transmission power control |
IL108056A (en) * | 1993-12-16 | 1998-07-15 | Geotek Ind Inc | Radio telephone system for minimizing inter-channel interference that uses geographical separation of signals and power control to tradition |
JP2734952B2 (ja) | 1993-12-16 | 1998-04-02 | 日本電気株式会社 | Cdma基地局受信装置 |
JPH07183862A (ja) | 1993-12-22 | 1995-07-21 | Toshiba Corp | 周波数分割多重伝送の誤り訂正方法およびそれを用いた伝送システム |
JP2586316B2 (ja) | 1993-12-22 | 1997-02-26 | 日本電気株式会社 | セクタ構成移動通信システム |
DE69434353T2 (de) | 1993-12-22 | 2006-03-09 | Koninklijke Philips Electronics N.V. | Mehrträger-Frequenzsprungkommunikationssystem |
JP2868111B2 (ja) | 1994-02-04 | 1999-03-10 | エヌ・ティ・ティ移動通信網株式会社 | 無線チャネル割当方法 |
JP3889038B2 (ja) | 1994-02-17 | 2007-03-07 | モトローラ・インコーポレイテッド | 通信システムにおいて符号化レートを制御する方法および装置 |
JP2658865B2 (ja) | 1994-02-28 | 1997-09-30 | 日本電気株式会社 | 移動体衛星通信方式 |
US5491837A (en) * | 1994-03-07 | 1996-02-13 | Ericsson Inc. | Method and system for channel allocation using power control and mobile-assisted handover measurements |
JP3197736B2 (ja) | 1994-03-08 | 2001-08-13 | 日本電信電話株式会社 | 無線通信方式 |
JPH07250368A (ja) | 1994-03-09 | 1995-09-26 | Nippon Telegr & Teleph Corp <Ntt> | チャネル制御方法 |
JPH07264110A (ja) | 1994-03-17 | 1995-10-13 | N T T Idou Tsuushinmou Kk | チャネル複素包絡線推定方法 |
US5764699A (en) * | 1994-03-31 | 1998-06-09 | Motorola, Inc. | Method and apparatus for providing adaptive modulation in a radio communication system |
US5590156A (en) | 1994-04-22 | 1996-12-31 | Carney; Ronald | Multichannel wideband digital receiver making use of multiple wideband tuners having individually selectable gains to extend overall system dynamic range |
US6018528A (en) * | 1994-04-28 | 2000-01-25 | At&T Corp | System and method for optimizing spectral efficiency using time-frequency-code slicing |
DE69528646T2 (de) | 1994-06-02 | 2003-06-18 | Amati Communications Corp., San Jose | Verfahren und einrichtung zum koordinieren von mehrpunktkommunikation in einem mehrtonübertragungssystem |
FI107575B (fi) * | 1994-06-20 | 2001-08-31 | Nokia Mobile Phones Ltd | Tiedonsiirtomenetelmä, tukiasema sekä tilaajapäätelaite |
JP2991367B2 (ja) | 1994-06-22 | 1999-12-20 | エヌ・ティ・ティ移動通信網株式会社 | チャネル棲み分け方法 |
JPH10502231A (ja) | 1994-06-23 | 1998-02-24 | テレフオンアクチーボラゲツト エル エム エリクソン | アンテナ・アレーを有するイントラ・セル・ハンドオーバ |
DE69532190T2 (de) | 1994-06-23 | 2004-08-12 | Ntt Mobile Communications Network Inc. | Verfahren und anordnung zum empfangen eines code-division-multiplexsignals |
CN1088952C (zh) | 1994-06-23 | 2002-08-07 | Ntt移动通信网株式会社 | 最大似然解码相干检测方法 |
JPH0846662A (ja) | 1994-07-27 | 1996-02-16 | Fujitsu Ltd | 同期検波方式 |
FI943609A (fi) * | 1994-08-03 | 1996-02-04 | Nokia Telecommunications Oy | Menetelmä kanavan allokoimiseksi solukkoradiojärjestelmässä |
JP3141916B2 (ja) | 1994-08-08 | 2001-03-07 | 株式会社エヌ・ティ・ティ・ドコモ | Dpsk波線形予測遅延検波方法 |
JPH0854233A (ja) | 1994-08-11 | 1996-02-27 | Japan Aviation Electron Ind Ltd | 移動***置測定装置 |
JPH0865233A (ja) | 1994-08-25 | 1996-03-08 | Sanyo Electric Co Ltd | 携帯電話機 |
US5666649A (en) * | 1994-09-01 | 1997-09-09 | Ericsson Inc. | Communications system having variable system performance capability |
JP3215018B2 (ja) | 1994-09-09 | 2001-10-02 | 三菱電機株式会社 | 移動通信システム |
US6334219B1 (en) * | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
JP2818793B2 (ja) | 1994-11-09 | 1998-10-30 | 住友ゴム工業株式会社 | 混練ミキサーゴムシーティング装置 |
US5577022A (en) | 1994-11-22 | 1996-11-19 | Qualcomm Incorporated | Pilot signal searching technique for a cellular communications system |
GB2340003B (en) | 1994-12-15 | 2000-03-22 | Inmarsat Ltd | Multiplex communication |
US5592470A (en) | 1994-12-21 | 1997-01-07 | At&T | Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynamic bandwidth/channel allocation |
GB2296407B (en) | 1994-12-22 | 1999-10-06 | Roke Manor Research | Frequency hopped cellular mobile radio systems |
JP3279108B2 (ja) | 1994-12-28 | 2002-04-30 | 株式会社エヌ・ティ・ティ・ドコモ | フェージングデータ発生器及びそれを用いたフェージングデータ処理装置 |
KR100319309B1 (ko) * | 1995-01-25 | 2002-04-24 | 다치카와 게이지 | 이동통신시스템 |
JP2693922B2 (ja) | 1995-02-13 | 1997-12-24 | 日本電気エンジニアリング株式会社 | 移動無線端末機のチャンネル切替判定装置 |
JP3316100B2 (ja) | 1995-03-16 | 2002-08-19 | 株式会社日立国際電気 | 通信システム |
JPH08265274A (ja) | 1995-03-20 | 1996-10-11 | Fujitsu Ltd | 多重伝搬特性測定装置 |
JP2681007B2 (ja) | 1995-03-20 | 1997-11-19 | 日本電気移動通信株式会社 | 移動通信システムにおける通信回線の割り当て方式 |
US5732353A (en) * | 1995-04-07 | 1998-03-24 | Ericsson Inc. | Automatic control channel planning in adaptive channel allocation systems |
JPH08288795A (ja) | 1995-04-10 | 1996-11-01 | Sony Corp | シンセサイザ受信機 |
JP2755210B2 (ja) | 1995-04-11 | 1998-05-20 | 日本電気株式会社 | 周波数自動制御回路 |
CN1187931A (zh) | 1995-04-19 | 1998-07-15 | 株式会社小松制作所 | 等离子电弧焊炬用电极 |
US5598417A (en) * | 1995-04-28 | 1997-01-28 | Motorola, Inc. | Dynamic control of a data channel in a TDM wireless communication system |
FI100569B (fi) * | 1995-05-08 | 1997-12-31 | Nokia Telecommunications Oy | Menetelmä ja laitteisto muuttuvan siirtonopeuden koodausta ja ilmaisua varten monikäyttömatkaviestinjärjestelmässä |
JP2863993B2 (ja) | 1995-06-22 | 1999-03-03 | 松下電器産業株式会社 | Cdma無線多重送信装置およびcdma無線多重伝送装置およびcdma無線受信装置およびcdma無線多重送信方法 |
EP0753948B1 (en) | 1995-07-11 | 2006-06-07 | Alcatel | Capacity allocation for OFDM |
US5854981A (en) | 1995-08-08 | 1998-12-29 | Telefonaktiebolaget L M Ericsson | Adaptive neighbor cell list |
JPH0951394A (ja) | 1995-08-08 | 1997-02-18 | Oki Electric Ind Co Ltd | 移動体ファクシミリ通信システム及びメッセージ変換装置 |
JPH0955709A (ja) | 1995-08-17 | 1997-02-25 | Fujitsu Ltd | 多重伝搬特性測定装置 |
US5793759A (en) | 1995-08-25 | 1998-08-11 | Terayon Corporation | Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes |
SE515752C2 (sv) * | 1995-08-28 | 2001-10-08 | Telia Ab | Direktåtkomst i OFDM-system |
JPH0964804A (ja) | 1995-08-29 | 1997-03-07 | Fujitsu Ltd | 多重伝搬特性測定装置 |
US6198928B1 (en) * | 1995-08-31 | 2001-03-06 | Nokia Telecommunications Oy | Handover method, and a cellular radio system |
FI102649B (fi) * | 1995-10-13 | 1999-01-15 | Nokia Telecommunications Oy | Solukkoradioverkon kapasiteetin kasvattaminen |
JPH09167982A (ja) | 1995-12-14 | 1997-06-24 | Kokusai Electric Co Ltd | 低速周波数ホッピング通信方式 |
JPH09167990A (ja) | 1995-12-15 | 1997-06-24 | Oki Electric Ind Co Ltd | 移動体通信システムおよび移動体通信方式における移動体通信方法 |
RO111492B1 (ro) | 1995-12-21 | 2003-08-29 | Comoti S.A. | Compresor centrifugal cu multiplicator încorporat |
JP3780551B2 (ja) * | 1996-01-29 | 2006-05-31 | ソニー株式会社 | 多元接続による信号送信方法及び装置 |
GB2309858B (en) | 1996-01-31 | 2000-08-23 | Motorola Ltd | Apparatus and method for channel allocation |
SE515218C2 (sv) * | 1996-02-19 | 2001-07-02 | Ericsson Telefon Ab L M | Anordning och förfarande vid kabelTVnät |
JP2861912B2 (ja) * | 1996-02-26 | 1999-02-24 | 日本電気株式会社 | 移動通信システム |
US5844894A (en) | 1996-02-29 | 1998-12-01 | Ericsson Inc. | Time-reuse partitioning system and methods for cellular radio telephone systems |
US5914933A (en) | 1996-03-08 | 1999-06-22 | Lucent Technologies Inc. | Clustered OFDM communication system |
US6005876A (en) * | 1996-03-08 | 1999-12-21 | At&T Corp | Method and apparatus for mobile data communication |
JP3167924B2 (ja) | 1996-04-26 | 2001-05-21 | 本田技研工業株式会社 | 蒸発燃料処理装置 |
DE19616829C1 (de) * | 1996-04-26 | 1997-04-24 | Siemens Ag | System zur Funkübertragung digitaler Signale zwischen mehreren Teilnehmerstationen und einer Basisstation |
US5796722A (en) | 1996-05-17 | 1998-08-18 | Motorola, Inc. | Method and apparatus for dynamic load balancing using handoff |
JPH09321682A (ja) | 1996-05-27 | 1997-12-12 | Sony Corp | 通信システム,通信方法及び端末装置 |
SE518262C2 (sv) | 1996-05-31 | 2002-09-17 | Ericsson Telefon Ab L M | Kanalhoppning i ett radiokommunikationssystem |
US6006075A (en) * | 1996-06-18 | 1999-12-21 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity |
JP3011661B2 (ja) | 1996-06-28 | 2000-02-21 | アンリツ株式会社 | 無線機の受信感度ダイバーシチ測定方法およびその装置 |
US6097771A (en) | 1996-07-01 | 2000-08-01 | Lucent Technologies Inc. | Wireless communications system having a layered space-time architecture employing multi-element antennas |
FI101659B1 (fi) | 1996-07-12 | 1998-07-31 | Nokia Mobile Phones Ltd | Viiveen estimointimenetelmä ja vastaanotin |
US5912931A (en) | 1996-08-01 | 1999-06-15 | Nextel Communications | Method for multicarrier signal detection and parameter estimation in mobile radio communication channels |
US5822372A (en) * | 1996-08-02 | 1998-10-13 | Motorola, Inc. | Multicarrier system using subchannel characteristics to implement different error rates within a data stream |
JPH1065604A (ja) * | 1996-08-23 | 1998-03-06 | Sony Corp | 通信方法、基地局及び端末装置 |
US5884145A (en) * | 1996-08-28 | 1999-03-16 | Telefon Akmebolget Lm Ericsson | Method and system for autonomously allocating a cellular communications channel for communication between a cellular terminal and a telephone base station |
US6009332A (en) | 1996-08-28 | 1999-12-28 | Telefonaktiebolaget Lm Ericsson | Method and system for autonomously allocating a frequency hopping traffic channel in a private radio system |
US6405048B1 (en) * | 1996-08-28 | 2002-06-11 | Telefonaktiebolaget L M Ericsson | Method and system for autonomously allocating frequencies to a radio system sharing frequencies with an overlapping macro radio system |
EP0931388B1 (en) | 1996-08-29 | 2003-11-05 | Cisco Technology, Inc. | Spatio-temporal processing for communication |
FI102577B1 (fi) * | 1996-09-05 | 1998-12-31 | Nokia Telecommunications Oy | Lähetys- ja vastaanottomenetelmä ja radiojärjestelmä |
CA2214934C (en) * | 1996-09-24 | 2001-10-30 | At&T Corp. | Method and apparatus for mobile data communication |
US6061568A (en) | 1996-10-01 | 2000-05-09 | Ericsson Inc. | Method and apparatus for mitigating intermodulation effects in multiple-signal transmission systems |
US6512481B1 (en) | 1996-10-10 | 2003-01-28 | Teratech Corporation | Communication system using geographic position data |
US6463295B1 (en) | 1996-10-11 | 2002-10-08 | Arraycomm, Inc. | Power control with signal quality estimation for smart antenna communication systems |
US6047189A (en) * | 1996-10-11 | 2000-04-04 | Arraycomm, Inc. | Adaptive method for channel assignment in a cellular communication system |
JP4173916B2 (ja) | 1996-10-23 | 2008-10-29 | アーレイコム リミテッド ライアビリティ カンパニー | 時空処理を有するスペクトル的に効率的な高容量無線通信システム |
US5886988A (en) | 1996-10-23 | 1999-03-23 | Arraycomm, Inc. | Channel assignment and call admission control for spatial division multiple access communication systems |
DE69726697T2 (de) | 1996-10-25 | 2004-10-21 | Nokia Corp | Verfahren zur Funkkapazitätskontrolle |
JP3687229B2 (ja) | 1996-11-08 | 2005-08-24 | ソニー株式会社 | 通信方法、基地局及び端末装置 |
US6144652A (en) | 1996-11-08 | 2000-11-07 | Lucent Technologies Inc. | TDM-based fixed wireless loop system |
US5914946A (en) | 1996-11-08 | 1999-06-22 | Lucent Technologies Inc. | TDM-based fixed wireless loop system |
US5991334A (en) | 1996-11-12 | 1999-11-23 | Lucent Technologies Inc. | Technique for simultaneous communications of analog frequency-modulated and digitally modulated signals using postcanceling scheme |
FI103856B (fi) * | 1996-11-15 | 1999-09-30 | Nokia Telecommunications Oy | Dynaaminen kanava-allokointi |
US5956642A (en) * | 1996-11-25 | 1999-09-21 | Telefonaktiebolaget L M Ericsson | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
US6122260A (en) | 1996-12-16 | 2000-09-19 | Civil Telecommunications, Inc. | Smart antenna CDMA wireless communication system |
US6034987A (en) | 1996-12-17 | 2000-03-07 | Ericsson Inc. | System for improving the quality of a received radio signal |
US5960353A (en) | 1996-12-24 | 1999-09-28 | Lucent Technologies, Inc. | Microcell load measurement using feedback control |
KR100226698B1 (ko) | 1996-12-28 | 1999-10-15 | 전주범 | 직교 주파수 분할 다중화 수신 시스템의 채널 등화 장치 |
US6064339A (en) | 1997-01-08 | 2000-05-16 | Us Wireless Corporation | Subspace signature matching for location ambiguity resolution in wireless communication systems |
US5912876A (en) | 1997-01-15 | 1999-06-15 | Ericsson, Inc. | Method and apparatus for channel estimation |
FI102340B (fi) | 1997-01-16 | 1998-11-13 | Nokia Telecommunications Oy | Tiedonsiirtomenetelmä ja radiojärjestelmä |
JP2901562B2 (ja) | 1997-01-22 | 1999-06-07 | 日本電気移動通信株式会社 | 最適トラフィックチャネルの割り当てシステムおよび方法 |
US5943375A (en) | 1997-02-06 | 1999-08-24 | At&T Wireless Services Inc. | Method to indicate synchronization lock of a remote station with a base station |
US6085114A (en) | 1997-02-06 | 2000-07-04 | At&T Wireless Systems Inc. | Remote wireless unit having reduced power operating mode |
US5799000A (en) | 1997-02-06 | 1998-08-25 | At&T Wireless Services, Inc. | Delay compensation |
US5933421A (en) | 1997-02-06 | 1999-08-03 | At&T Wireless Services Inc. | Method for frequency division duplex communications |
JP3387407B2 (ja) | 1997-02-06 | 2003-03-17 | 三菱マテリアル株式会社 | デジタル変調復調方法およびデジタル通信装置 |
FI106162B (fi) | 1997-02-14 | 2000-11-30 | Nokia Networks Oy | Kanavan allokointimenetelmä |
US6359923B1 (en) * | 1997-12-18 | 2002-03-19 | At&T Wireless Services, Inc. | Highly bandwidth efficient communications |
US6128276A (en) | 1997-02-24 | 2000-10-03 | Radix Wireless, Inc. | Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays |
WO1998037654A2 (en) * | 1997-02-24 | 1998-08-27 | At & T Wireless Services, Inc. | Vertical adaptive antenna array for a discrete multitone spread spectrum communications system |
WO1998037638A2 (en) | 1997-02-24 | 1998-08-27 | At & T Wireless Services, Inc. | Highly bandwidth-efficient communications |
FI107688B (fi) | 1997-02-27 | 2001-09-14 | Nokia Networks Oy | Menetelmä dynaamisen kanavienjaon toteuttamiseksi solukkoradiojärjestelmässä |
SE9703629L (sv) | 1997-03-03 | 1998-09-04 | Telia Ab | Förbättringar av, eller med avseende på, synkronisering |
JP3066483B2 (ja) | 1997-03-04 | 2000-07-17 | 郵政省通信総合研究所長 | ディジタル移動無線通信方法 |
US6023622A (en) | 1997-03-05 | 2000-02-08 | Watkins-Johnson Company | Wireless communication system with dynamic channel allocation |
US6075813A (en) * | 1997-03-18 | 2000-06-13 | Lucent Technologies Inc. | Band insertion and precancellation technique for simultaneous communication of analog frequency modulated and digitally modulated signals |
DE19713666C2 (de) * | 1997-04-02 | 1999-01-14 | Siemens Ag | Verfahren und Einrichtung zur Kanalzuteilung |
US5940763A (en) * | 1997-04-23 | 1999-08-17 | Ericsson, Inc. | Enhanced preemption within a mobile telecommunications network |
US7133380B1 (en) | 2000-01-11 | 2006-11-07 | At&T Corp. | System and method for selecting a transmission channel in a wireless communication system that includes an adaptive array |
US6052594A (en) * | 1997-04-30 | 2000-04-18 | At&T Corp. | System and method for dynamically assigning channels for wireless packet communications |
US5991273A (en) | 1997-05-01 | 1999-11-23 | Nortel Networks Corporation | Determining SINR in a communications system |
US5819168A (en) | 1997-05-01 | 1998-10-06 | At&T Corp | Adaptive communication system and method using unequal weighting of interface and noise |
US6091717A (en) * | 1997-05-05 | 2000-07-18 | Nokia Mobile Phones Limited | Method for scheduling packet data transmission |
US5937006A (en) * | 1997-05-28 | 1999-08-10 | The Aerospace Corporation | Frequency translating device transmission response method |
US5982760A (en) | 1997-06-20 | 1999-11-09 | Qualcomm Inc. | Method and apparatus for power adaptation control in closed-loop communications |
US6388999B1 (en) | 1997-12-17 | 2002-05-14 | Tantivy Communications, Inc. | Dynamic bandwidth allocation for multiple access communications using buffer urgency factor |
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
US6081536A (en) * | 1997-06-20 | 2000-06-27 | Tantivy Communications, Inc. | Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link |
US6064692A (en) * | 1997-06-20 | 2000-05-16 | Amati Communications Corporation | Protocol for transceiver initialization |
US6157627A (en) * | 1997-06-23 | 2000-12-05 | Telefonaktiebolaget Lm Ericsson | Channel allocation for mixed multislot services |
KR100226708B1 (ko) | 1997-06-26 | 1999-10-15 | 전주범 | 직교분할대역 채널 등화기의 계수 메모리를 위한 어드레스 발생 장치 |
US6539050B1 (en) | 1997-06-26 | 2003-03-25 | Hughes Electronics Corporation | Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission |
JP3670445B2 (ja) | 1997-06-30 | 2005-07-13 | 株式会社東芝 | 無線通信システム |
US6405043B1 (en) | 1997-07-02 | 2002-06-11 | Scoreboard, Inc. | Method to characterize the prospective or actual level of interference at a point, in a sector, and throughout a cellular system |
JPH1119457A (ja) | 1997-07-04 | 1999-01-26 | Niigata Eng Co Ltd | 塩化水素ガス吸収装置 |
JPH1132028A (ja) | 1997-07-14 | 1999-02-02 | Matsushita Electric Ind Co Ltd | 無線送信方法及び無線送信装置 |
JP2914444B2 (ja) | 1997-07-22 | 1999-06-28 | 日本電気株式会社 | Cdma送受信機 |
US20080220776A1 (en) | 1997-07-30 | 2008-09-11 | Steven Tischer | Interface devices for facilitating communications between devices and communications networks |
FR2767007B1 (fr) | 1997-08-01 | 1999-11-05 | France Telecom | Procede d'acces multiple dans un reseau cellulaire de radiocommunication |
US6026123A (en) | 1997-08-02 | 2000-02-15 | Williams; Thomas H. | Digital transmission system with high immunity to dynamic linear distortion |
JP3035512B2 (ja) | 1997-08-06 | 2000-04-24 | 日本電信電話株式会社 | マルチキャリア信号伝送方法および装置 |
US6108374A (en) | 1997-08-25 | 2000-08-22 | Lucent Technologies, Inc. | System and method for measuring channel quality information |
US6215827B1 (en) | 1997-08-25 | 2001-04-10 | Lucent Technologies, Inc. | System and method for measuring channel quality information in a communication system |
US6131016A (en) * | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
EP0899923A1 (en) | 1997-08-29 | 1999-03-03 | Sony International (Europe) GmbH | Transmission of power control signals in a multicarrier modulation system |
US6208663B1 (en) * | 1997-08-29 | 2001-03-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for block ARQ with reselection of FEC coding and/or modulation |
JP3070670B2 (ja) | 1997-09-02 | 2000-07-31 | 日本電気株式会社 | パイロット信号受信レベル平均化方式 |
US6144654A (en) | 1997-09-03 | 2000-11-07 | Motorola, Inc. | Method of combining and separating groups of multiple CDMA-encoded data signals and apparatus therefor |
US6038450A (en) * | 1997-09-12 | 2000-03-14 | Lucent Technologies, Inc. | Soft handover system for a multiple sub-carrier communication system and method thereof |
US6108565A (en) | 1997-09-15 | 2000-08-22 | Adaptive Telecom, Inc. | Practical space-time radio method for CDMA communication capacity enhancement |
US6389062B1 (en) * | 1997-09-17 | 2002-05-14 | Texas Instruments Incorporated | Adaptive frequency domain equalizer circuits, systems, and methods for discrete multitone based digital subscriber line modem |
JPH11113049A (ja) | 1997-09-30 | 1999-04-23 | Matsushita Electric Ind Co Ltd | 無線通信システム |
US6304593B1 (en) | 1997-10-06 | 2001-10-16 | California Institute Of Technology | Adaptive modulation scheme with simultaneous voice and data transmission |
US6037898A (en) * | 1997-10-10 | 2000-03-14 | Arraycomm, Inc. | Method and apparatus for calibrating radio frequency base stations using antenna arrays |
US6567416B1 (en) * | 1997-10-14 | 2003-05-20 | Lucent Technologies Inc. | Method for access control in a multiple access system for communications networks |
US6810030B1 (en) | 1997-10-17 | 2004-10-26 | Lucent Technology | Dynamic and smart spreading for wideband CDMA |
US6873612B1 (en) * | 1997-10-30 | 2005-03-29 | Nortel Networks Limited | Methods and devices for asynchronous operation of a CDMA mobile communication system |
JP3821331B2 (ja) | 1997-10-31 | 2006-09-13 | ソニー株式会社 | 通信端末装置及びセルラー無線通信システム並びに情報通信方法 |
IT1295808B1 (it) | 1997-11-04 | 1999-05-27 | Cselt Centro Studi Lab Telecom | Procedimento per l'assegnazione dei canali in un sistema di comunicazone tra mezzi mobili con accesso multiplo a divisione di |
EP0915586B1 (en) * | 1997-11-07 | 2005-05-18 | Sony International (Europe) GmbH | Multicarrier transmission, compatible with the existing GSM system |
EP0923262B1 (en) | 1997-11-11 | 2011-07-27 | Lucent Technologies Inc. | Cellular multicarrier wireless communication system |
CA2251010A1 (en) * | 1997-11-11 | 1999-05-11 | Lucent Technologies Inc. | Cellular multicarrier wireless communication system |
US6141565A (en) * | 1997-11-13 | 2000-10-31 | Metawave Communications Corporation | Dynamic mobile parameter optimization |
US6314082B1 (en) | 1997-11-17 | 2001-11-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Broadcast network selection techniques for radiocommunication systems |
US6016311A (en) * | 1997-11-19 | 2000-01-18 | Ensemble Communications, Inc. | Adaptive time division duplexing method and apparatus for dynamic bandwidth allocation within a wireless communication system |
JP2911861B2 (ja) | 1997-11-26 | 1999-06-23 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm用受信装置 |
US6154661A (en) | 1997-12-10 | 2000-11-28 | Arraycomm, Inc. | Transmitting on the downlink using one or more weight vectors determined to achieve a desired radiation pattern |
US6009553A (en) * | 1997-12-15 | 1999-12-28 | The Whitaker Corporation | Adaptive error correction for a communications link |
GB2332603B (en) | 1997-12-22 | 2000-07-19 | Lsi Logic Corp | Improvements relating to multidirectional communication systems |
DE69841693D1 (de) | 1998-01-06 | 2010-07-15 | Mosaid Technologies Inc | System zur Mehrträgermodulation, mit veränderbaren Symbolgeschwindigkeiten |
CA2254643A1 (en) * | 1998-01-06 | 1999-07-06 | Lucent Technologies Inc. | Mobile cellular telecommunication network |
EP0929202A1 (en) | 1998-01-06 | 1999-07-14 | Lucent Technologies Inc. | Uplink channel allocation for a mobile cellular network |
JP3718337B2 (ja) | 1998-01-08 | 2005-11-24 | 株式会社東芝 | 適応可変指向性アンテナ |
US5982327A (en) | 1998-01-12 | 1999-11-09 | Motorola, Inc. | Adaptive array method, device, base station and subscriber unit |
DE19800953C1 (de) | 1998-01-13 | 1999-07-29 | Siemens Ag | Verfahren und Funk-Kommunikationssystem zur Zuteilung von Funkressourcen einer Funkschnittstelle |
US6728413B2 (en) * | 1998-01-19 | 2004-04-27 | Canon Kabushiki Kaisha | Lattice vector quantization in image compression and decompression |
JP2937981B2 (ja) | 1998-01-20 | 1999-08-23 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | チャネル割当て方法および移動通信網 |
US6192026B1 (en) * | 1998-02-06 | 2001-02-20 | Cisco Systems, Inc. | Medium access control protocol for OFDM wireless networks |
JP2934426B1 (ja) | 1998-02-09 | 1999-08-16 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | 到来波推定方法 |
US7787514B2 (en) | 1998-02-12 | 2010-08-31 | Lot 41 Acquisition Foundation, Llc | Carrier interferometry coding with applications to cellular and local area networks |
US5955992A (en) * | 1998-02-12 | 1999-09-21 | Shattil; Steve J. | Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter |
JPH11234230A (ja) | 1998-02-13 | 1999-08-27 | Toyota Central Res & Dev Lab Inc | マルチキャリア通信システム用送信局装置、受信局装置、及びマルチキャリア通信システム |
CN1143468C (zh) | 1998-02-13 | 2004-03-24 | 索尼公司 | 发送方法、接收方法、发射机和接收机 |
EP0938193A1 (en) | 1998-02-18 | 1999-08-25 | Sony International (Europe) GmbH | Header structure for TDD systems |
EP0939527B1 (en) | 1998-02-18 | 2007-12-05 | Sony Deutschland GmbH | Mapping of multicarrier signals into GSM time slots |
JPH11308152A (ja) | 1998-02-19 | 1999-11-05 | Advantest Corp | スペクトラム拡散信号解析装置及びその方法 |
JP3981898B2 (ja) | 1998-02-20 | 2007-09-26 | ソニー株式会社 | 信号受信装置および方法、並びに記録媒体 |
EP0938208A1 (en) * | 1998-02-22 | 1999-08-25 | Sony International (Europe) GmbH | Multicarrier transmission, compatible with the existing GSM system |
US6005524A (en) | 1998-02-26 | 1999-12-21 | Ericsson Inc. | Flexible diversity antenna |
JPH11313043A (ja) | 1998-02-27 | 1999-11-09 | Nec Corp | マルチキャリア伝送システム及び伝送装置並びに伝送方法 |
JP3597694B2 (ja) | 1998-03-05 | 2004-12-08 | 日本電信電話株式会社 | 適応アンテナ装置 |
US6119011A (en) | 1998-03-05 | 2000-09-12 | Lucent Technologies Inc. | Cost-function-based dynamic channel assignment for a cellular system |
US6366195B1 (en) | 1998-03-13 | 2002-04-02 | Wireless Online, Inc. | Power control in two-way paging systems |
JP2878265B1 (ja) | 1998-03-16 | 1999-04-05 | 三菱電機株式会社 | 符号割当装置並びにその方法 |
JP3609937B2 (ja) | 1998-03-20 | 2005-01-12 | シャープ株式会社 | 受信機 |
US6252861B1 (en) | 1998-03-26 | 2001-06-26 | Lucent Technologies, Inc. | Methods and apparatus for interfrequency handoff in a wireless communication system |
JP3125776B2 (ja) | 1998-03-27 | 2001-01-22 | 日本電気株式会社 | セルラシステムにおける送信電力制御方法及び基地局装置 |
JP3473393B2 (ja) | 1998-03-31 | 2003-12-02 | 株式会社豊田中央研究所 | アダプティブ受信装置 |
JPH11289211A (ja) | 1998-03-31 | 1999-10-19 | Toyota Central Res & Dev Lab Inc | アダプティブ受信装置 |
JP3577944B2 (ja) | 1998-03-31 | 2004-10-20 | 株式会社豊田中央研究所 | アダプティブ受信装置 |
JP3489436B2 (ja) | 1998-03-31 | 2004-01-19 | 株式会社豊田中央研究所 | アダプティブ受信装置 |
US6327314B1 (en) | 1998-04-01 | 2001-12-04 | At&T Corp. | Method and apparatus for channel estimation for multicarrier systems |
US5973642A (en) * | 1998-04-01 | 1999-10-26 | At&T Corp. | Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference |
JP2934225B1 (ja) | 1998-04-06 | 1999-08-16 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
FR2777407B1 (fr) * | 1998-04-10 | 2000-06-30 | Wavecom Sa | Signal de radiotelephonie cellulaire a canal supplementaire affecte au sens descendant, procede, systeme, mobile et station de base correspondant |
JPH11308129A (ja) | 1998-04-16 | 1999-11-05 | Toyota Central Res & Dev Lab Inc | マルチキャリア伝送方法及びアダプティブ受信装置 |
JP2000049663A (ja) | 1998-04-17 | 2000-02-18 | Matsushita Electric Ind Co Ltd | 無線通信装置及び伝送レ―ト制御方法 |
JP3525738B2 (ja) | 1998-04-20 | 2004-05-10 | Kddi株式会社 | セルラーシステムにおける下り回線ハンドオーバ制御方法 |
JP3371801B2 (ja) | 1998-04-24 | 2003-01-27 | 三菱電機株式会社 | 周波数ホッピング方式の移動局、基地局及び移動体通信システム |
JP3541674B2 (ja) | 1998-04-24 | 2004-07-14 | 日本ビクター株式会社 | マルチキャリア信号の生成方法及び送信装置 |
JP3567734B2 (ja) | 1998-04-28 | 2004-09-22 | 株式会社豊田中央研究所 | アダプティブ受信装置 |
JPH11313299A (ja) | 1998-04-30 | 1999-11-09 | Matsushita Electric Ind Co Ltd | デジタル無線通信による移動体への映像情報配信方法、その映像情報配信方法に用いられる中央局装置、及びその映像情報配信方法に用いられる移動端末装置 |
US6615024B1 (en) | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
KR19990088052A (ko) | 1998-05-06 | 1999-12-27 | 다니엘 태그리아페리, 라이조 캐르키, 모링 헬레나 | 다중반송파광대역시디엠에이시스템에서의전력제어를제공하는방법및장치 |
JP3286247B2 (ja) | 1998-05-08 | 2002-05-27 | 松下電器産業株式会社 | 無線通信システム |
US6438376B1 (en) * | 1998-05-11 | 2002-08-20 | Nortel Networks Limited | Wireless communications management and control system using mobile station position and movement information |
US6163570A (en) * | 1998-05-11 | 2000-12-19 | Conexant Systems, Inc. | Methods and apparatus for verifying transmit power levels in a signal point limited transmission system |
JP3515690B2 (ja) * | 1998-06-02 | 2004-04-05 | 松下電器産業株式会社 | Ofdma信号伝送装置及び方法 |
US6246713B1 (en) | 1998-06-08 | 2001-06-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency-hopping in a bandwidth-on-demand system |
JP3107048B2 (ja) | 1998-06-09 | 2000-11-06 | 日本電気株式会社 | Cdma通信システムおよびcdma通信システムおける周波数割り当て方法 |
US6463096B1 (en) | 1998-06-12 | 2002-10-08 | Cisco Systems, Inc | MAC protocol employing multiple data rates |
KR100322025B1 (ko) * | 1998-06-15 | 2002-06-24 | 윤종용 | 이동통신시스템에서주파수할당의증설방법및시스템 |
JP3957882B2 (ja) | 1998-06-17 | 2007-08-15 | 株式会社日立コミュニケーションテクノロジー | 電力制御方法及び電力制御装置 |
JP3519276B2 (ja) | 1998-06-18 | 2004-04-12 | 松下電器産業株式会社 | キャリブレーション装置 |
US6594238B1 (en) | 1998-06-19 | 2003-07-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for dynamically adapting a connection state in a mobile communications system |
KR20000002504A (ko) | 1998-06-20 | 2000-01-15 | 윤종용 | 이동통신 시스템의 선택적 송신 다이버시티 장치 및 방법 |
JP2000013290A (ja) | 1998-06-24 | 2000-01-14 | Matsushita Electric Ind Co Ltd | ダイバーシチ通信装置及び方法 |
US6751193B1 (en) | 1998-06-26 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for controlling data transfer between two stations |
JP2000022611A (ja) | 1998-06-29 | 2000-01-21 | Matsushita Electric Ind Co Ltd | 送信電力制御方法及び無線通信装置 |
US6795424B1 (en) * | 1998-06-30 | 2004-09-21 | Tellabs Operations, Inc. | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems |
JP3558879B2 (ja) | 1998-07-06 | 2004-08-25 | 株式会社東芝 | ディジタル通信装置 |
NL1009663C2 (nl) * | 1998-07-06 | 2000-01-10 | Maasland Nv | Werkwijze en inrichting voor het desinfecteren van een melkinstallatie en/of een reinigingsinrichting voor de spenen van een dier. |
KR100318959B1 (ko) | 1998-07-07 | 2002-04-22 | 윤종용 | 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법 |
US6253094B1 (en) | 1998-07-09 | 2001-06-26 | Airnet Communications Corporation | Sectorized cell having non-redundant broadband processing unit |
US6496490B1 (en) | 1998-07-09 | 2002-12-17 | Lucent Technologies Inc. | Method for dynamically allocating carriers in a wireless packet network, with reuse of carriers |
EP1014609B1 (en) | 1998-07-13 | 2004-09-22 | Sony Corporation | Multicarrier communication method, transmitter and receiver |
JP2000092009A (ja) | 1998-07-13 | 2000-03-31 | Sony Corp | 通信方法、送信機及び受信機 |
US6106374A (en) * | 1998-07-16 | 2000-08-22 | International Business Machines Corporation | Acoustically agitated delivery |
ITMI981699A1 (it) | 1998-07-23 | 2000-01-23 | Alsthom Cge Alcatel | Metodo e dispositivo per lo scambio bidirezionale di dati lungo lineee elettriche di bassa e media tensione |
US6609039B1 (en) | 1998-07-27 | 2003-08-19 | Neil Charles Schoen | Simultaneous multi-user audio re-transmission digital radio module |
US6587696B1 (en) | 1998-07-31 | 2003-07-01 | Nokia Mobile Phones Limited | Power control technique utilizing forward pilot channel |
US6529488B1 (en) * | 1998-08-18 | 2003-03-04 | Motorola, Inc. | Multiple frequency allocation radio frequency device and method |
JP2000078111A (ja) | 1998-09-02 | 2000-03-14 | Fujitsu Ltd | Cdma同期検波用チャネル推定装置 |
JP2000091973A (ja) | 1998-09-10 | 2000-03-31 | Kokusai Electric Co Ltd | Rake合成回路 |
US6366779B1 (en) | 1998-09-22 | 2002-04-02 | Qualcomm Incorporated | Method and apparatus for rapid assignment of a traffic channel in digital cellular communication systems |
US6175734B1 (en) * | 1998-09-29 | 2001-01-16 | Telefonaktiebolaget Lm Ericsson | Method for acquisition of cell relations in a cellular radiocommunication system |
JP3000002B1 (ja) | 1998-09-29 | 2000-01-17 | エニー株式会社 | 被供給体の集中監視端末機 |
US6963750B1 (en) | 1998-09-30 | 2005-11-08 | Lucent Technologies Inc. | CDMA power control for paging and initial traffic channel power |
JP2000115834A (ja) | 1998-10-05 | 2000-04-21 | Sony Corp | 通信方法、基地局装置及び通信端末装置 |
JP2000114846A (ja) | 1998-10-06 | 2000-04-21 | Toshiba Corp | 指向性アンテナ選択システム、指向性アンテナ選択方法、指向性アンテナ基地局、及び無線端末 |
WO2000022846A1 (en) * | 1998-10-15 | 2000-04-20 | Airnet Communications Corporation | Broadband base station architecture for advanced resource management |
US6166622A (en) | 1998-10-28 | 2000-12-26 | Texas Instruments Incorporated | Time slot structure for improved TPC estimation in WCDMA |
JP2000138624A (ja) | 1998-10-29 | 2000-05-16 | Matsushita Electric Ind Co Ltd | 無線通信装置及び送信アンテナ切替方法 |
US6400780B1 (en) | 1998-11-06 | 2002-06-04 | Lucent Technologies Inc. | Space-time diversity for wireless systems |
GB2346520A (en) * | 1998-11-09 | 2000-08-09 | Wi Lan Inc | Data recovery in an OFDM system exploiting pilot subcarriers |
SE522834C2 (sv) * | 1998-11-11 | 2004-03-09 | Ericsson Telefon Ab L M | Anordning, system och förfarande relaterande till radiokommunikation |
US6693884B1 (en) * | 1998-11-19 | 2004-02-17 | Scoreboard, Inc. | Method of quantifying the quality of service in a CDMA cellular telephone system |
US7039120B1 (en) | 1998-11-30 | 2006-05-02 | Canon Kabushiki Kaisha | Device and method for the dynamic allocation of frequencies for multicarrier modulation systems |
JP3455448B2 (ja) | 1998-12-01 | 2003-10-14 | 株式会社東芝 | ビーム制御アンテナ装置及びアンテナ制御方法 |
JP3144780B2 (ja) | 1998-12-11 | 2001-03-12 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | スペクトル拡散変調可変多重伝送装置 |
JP3550307B2 (ja) | 1998-12-16 | 2004-08-04 | シャープ株式会社 | 受信機及び受信方法 |
GB9828209D0 (en) * | 1998-12-21 | 1999-02-17 | Northern Telecom Ltd | A cellular communications system |
JP3056473B1 (ja) * | 1998-12-21 | 2000-06-26 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | 移動体通信システム、基地局装置、移動局装置および送信制御方法 |
JP2000209124A (ja) | 1999-01-13 | 2000-07-28 | Kokusai Electric Co Ltd | スペクトラム拡散通信用相関回路 |
JP3946893B2 (ja) | 1998-12-28 | 2007-07-18 | 株式会社東芝 | ディジタル通信装置 |
JP2000201134A (ja) | 1999-01-06 | 2000-07-18 | Ntt Mobil Communication Network Inc | マルチキャリア/ds―cdma伝送方法および復調装置 |
US6445916B1 (en) | 1999-01-07 | 2002-09-03 | Lucent Technologies Inc. | Wireless system and method for evaluating quality of service |
JP3750390B2 (ja) * | 1999-01-08 | 2006-03-01 | 日本電気株式会社 | 移動体通信における呼制御方法及びそのシステム |
US6470044B1 (en) | 1999-01-15 | 2002-10-22 | Sharp Laboratories Of America, Inc. | Computationally parsimonious forward link receiver for DS-CDMA systems and method for same |
US6111919A (en) * | 1999-01-20 | 2000-08-29 | Intellon Corporation | Synchronization of OFDM signals |
JP2000209145A (ja) | 1999-01-20 | 2000-07-28 | Nippon Telegr & Teleph Corp <Ntt> | マルチキャリア信号送受信装置 |
US6442130B1 (en) | 1999-01-21 | 2002-08-27 | Cisco Technology, Inc. | System for interference cancellation |
US6611506B1 (en) | 1999-01-21 | 2003-08-26 | Lucent Technologies Inc. | Enhanced channel allocation among multiple carriers in a spread spectrum communications system |
JP3930180B2 (ja) | 1999-01-21 | 2007-06-13 | 富士通株式会社 | デジタル信号復調回路及び方法 |
JP3046960B1 (ja) | 1999-01-22 | 2000-05-29 | 株式会社次世代デジタルテレビジョン放送システム研究所 | 直交周波数分割多重伝送方式及びその送受信装置 |
JP3267944B2 (ja) | 1999-01-26 | 2002-03-25 | 日本電気株式会社 | 無線チャネル割り当てシステム |
US6424836B1 (en) * | 1999-02-09 | 2002-07-23 | Innowave Eci Wireless Systems Ltd. | Method for allocating frequency channels for sectors of a cell in cellular systems |
US6463296B1 (en) | 1999-02-16 | 2002-10-08 | Telefonaktiebolaget L M Ericsson (Publ) | Power control in a CDMA mobile communications system |
JP3594828B2 (ja) | 1999-02-18 | 2004-12-02 | 日本電信電話株式会社 | マルチキャリア変調信号復調器 |
AU730282B2 (en) | 1999-02-18 | 2001-03-01 | Nippon Telegraph & Telephone Corporation | Coherent detection system for multicarrier modulation |
US6553001B1 (en) * | 1999-02-18 | 2003-04-22 | 3Com Corporation | Technique for use in conjunction with an ISDN terminal adapter for expeditiously and automatically performing ISDN switch type detection and SPID configuration |
SE521227C2 (sv) * | 1999-02-22 | 2003-10-14 | Ericsson Telefon Ab L M | Mobilradiosystem och ett förfarande för kanallokering i ett mobilradiosystem |
JP2000252863A (ja) | 1999-02-25 | 2000-09-14 | Mitsubishi Electric Corp | マルチビーム合成受信装置 |
US6546249B1 (en) * | 1999-02-26 | 2003-04-08 | Sumitomo Electric Industries, Ltd | Seamless two-way roadway communication system |
JP3045167B1 (ja) | 1999-02-26 | 2000-05-29 | 住友電気工業株式会社 | 路車間通信システム |
JP3370621B2 (ja) | 1999-03-03 | 2003-01-27 | 日本電信電話株式会社 | 移動通信用基地局アンテナ装置 |
US6975611B1 (en) | 1999-03-03 | 2005-12-13 | Lucent Technologies Inc. | Method and device for MAC layer feedback in a packet communication system |
CA2299568A1 (en) | 1999-03-11 | 2000-09-11 | Lucent Technologies Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access system using directional antenna |
US6473418B1 (en) | 1999-03-11 | 2002-10-29 | Flarion Technologies, Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access |
US6778596B1 (en) | 1999-03-12 | 2004-08-17 | Aware, Inc. | Method and multi-carrier transceiver with stored application profiles for supporting multiple applications |
DE69912734T2 (de) | 1999-03-12 | 2004-05-27 | Motorola, Inc., Schaumburg | Vorrichtung und Verfahren zur Erzeugung der Gewichtung einer Sendeantenne |
JP3146196B2 (ja) | 1999-03-17 | 2001-03-12 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
US6606341B1 (en) * | 1999-03-22 | 2003-08-12 | Golden Bridge Technology, Inc. | Common packet channel with firm handoff |
JP3258973B2 (ja) | 1999-03-24 | 2002-02-18 | 三洋電機株式会社 | 伝送チャネルの割当方法およびそれを用いた無線装置 |
US7133352B1 (en) | 1999-09-20 | 2006-11-07 | Zion Hadad | Bi-directional communication channel |
CA2302608A1 (en) | 1999-03-29 | 2000-09-29 | Lucent Technologies Inc. | Multistream in-band-on-channel systems |
US6334047B1 (en) | 1999-04-09 | 2001-12-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive power control in a mobile radio communications system |
US6690944B1 (en) * | 1999-04-12 | 2004-02-10 | Nortel Networks Limited | Power control of a multi-subchannel mobile station in a mobile communication system |
US6330429B1 (en) | 1999-04-14 | 2001-12-11 | Lucent Technologies, Inc. | Channel grouping system and method for a wireless communications system |
JP2000308120A (ja) | 1999-04-15 | 2000-11-02 | Hitachi Ltd | チャネル割当制御方法 |
EP1047209A1 (en) | 1999-04-19 | 2000-10-25 | Interuniversitair Micro-Elektronica Centrum Vzw | A method and apparatus for multiuser transmission |
US6937665B1 (en) | 1999-04-19 | 2005-08-30 | Interuniversitaire Micron Elektronica Centrum | Method and apparatus for multi-user transmission |
JP2000315975A (ja) | 1999-04-28 | 2000-11-14 | Hitachi Ltd | 移動局装置 |
US6192025B1 (en) * | 1999-05-05 | 2001-02-20 | Yong E. Chen | Structure for protecting reading area of compact disc and device for applying same |
US6891792B1 (en) | 1999-05-14 | 2005-05-10 | At&T Corp. | Method for estimating time and frequency offset in an OFDM system |
JP3236273B2 (ja) * | 1999-05-17 | 2001-12-10 | 三菱電機株式会社 | マルチキャリア伝送システムおよびマルチキャリア変調方法 |
US6925068B1 (en) * | 1999-05-21 | 2005-08-02 | Wi-Lan, Inc. | Method and apparatus for allocating bandwidth in a wireless communication system |
JP3544147B2 (ja) | 1999-05-31 | 2004-07-21 | 株式会社東芝 | Ofdm信号受信装置、ofdm信号通信システム及びその通信制御方法 |
US7072410B1 (en) | 1999-06-01 | 2006-07-04 | Peter Monsen | Multiple access system and method for multibeam digital radio systems |
US6556557B1 (en) | 1999-06-02 | 2003-04-29 | At&T Corp. | Method and system for reducing of peak-to-average power ratio of transmission signals comprising overlapping waveforms |
US6141567A (en) | 1999-06-07 | 2000-10-31 | Arraycomm, Inc. | Apparatus and method for beamforming in a changing-interference environment |
US7139592B2 (en) | 1999-06-21 | 2006-11-21 | Arraycomm Llc | Null deepening for an adaptive antenna based communication station |
US6801775B1 (en) | 1999-06-23 | 2004-10-05 | At&T Wireless Services, Inc. | Establishing a communication channel in a wireless network |
US6801513B1 (en) | 1999-06-23 | 2004-10-05 | At&T Wireless Services, Inc. | Methods and apparatus for dynamically assigning time slots in a wireless communication system |
US7720468B1 (en) | 1999-06-23 | 2010-05-18 | Clearwire Legacy Llc | Polling methods for use in a wireless communication system |
US6657949B1 (en) * | 1999-07-06 | 2003-12-02 | Cisco Technology, Inc. | Efficient request access for OFDM systems |
JP3127918B1 (ja) | 1999-07-14 | 2001-01-29 | 住友電気工業株式会社 | 路車間通信システム並びに路上通信局及び車載移動局 |
US6782037B1 (en) * | 1999-07-27 | 2004-08-24 | Lucent Technologies Inc. | Demodulation method for receiver |
US6067290A (en) * | 1999-07-30 | 2000-05-23 | Gigabit Wireless, Inc. | Spatial multiplexing in a cellular network |
MXPA02001046A (es) | 1999-07-30 | 2003-08-20 | Iospan Wireless Inc | Multiplexion espacial en una red celular. |
US6757265B1 (en) | 1999-07-30 | 2004-06-29 | Iospan Wireless, Inc. | Subscriber unit in a hybrid link incorporating spatial multiplexing |
US7215650B1 (en) | 1999-08-16 | 2007-05-08 | Viasat, Inc. | Adaptive data rate control for narrowcast networks |
US6975603B1 (en) | 1999-08-20 | 2005-12-13 | Siemens Communications Inc. | System and method for minimizing the loss of information in cordless communications |
KR100316777B1 (ko) | 1999-08-24 | 2001-12-12 | 윤종용 | 차세대 이동 통신 시스템에서의 폐쇄 루프 전송 안테나 다이버시티 방법 및 이를 위한 기지국 장치 및 이동국 장치 |
US7373151B1 (en) | 1999-08-24 | 2008-05-13 | Lucent Technologies Inc. | Distributed dynamic channel allocation technique for multi-carrier CDMA cellular systems with mobile base stations |
JP2001069115A (ja) | 1999-08-27 | 2001-03-16 | Matsushita Electric Ind Co Ltd | Ofdm通信装置 |
JP2001077720A (ja) | 1999-09-03 | 2001-03-23 | Nagano Japan Radio Co | 無線装置 |
US6633614B1 (en) | 1999-09-15 | 2003-10-14 | Telcordia Technologies, Inc. | Multicarrier personal access communication system |
US6985432B1 (en) * | 2000-01-28 | 2006-01-10 | Zion Hadad | OFDM communication channel |
US6415153B1 (en) | 1999-09-29 | 2002-07-02 | Lucent Technologies Inc. | System and method for aggregate overload control |
US6487253B1 (en) | 1999-10-04 | 2002-11-26 | Cisco Technology, Inc. | OFDM channel estimation in the presence of interference |
US6850506B1 (en) * | 1999-10-07 | 2005-02-01 | Qualcomm Incorporated | Forward-link scheduling in a wireless communication system |
US6377636B1 (en) * | 1999-11-02 | 2002-04-23 | Iospan Wirless, Inc. | Method and wireless communications system using coordinated transmission and training for interference mitigation |
JP4526623B2 (ja) | 1999-11-16 | 2010-08-18 | 株式会社マキタ | 自発光機能を有する動力工具 |
US6501785B1 (en) | 1999-11-17 | 2002-12-31 | At&T Corp. | Dynamic frequency hopping |
JP3552988B2 (ja) * | 1999-11-29 | 2004-08-11 | 株式会社安川電機 | サーボ制御方法 |
ATE325481T1 (de) * | 1999-12-13 | 2006-06-15 | Broadcom Corp | Flexibler aufwärtsburst von profilparametern zur verbesserung von kurzen burst- impulsrauschsignalen |
US6298092B1 (en) * | 1999-12-15 | 2001-10-02 | Iospan Wireless, Inc. | Methods of controlling communication parameters of wireless systems |
US6922445B1 (en) * | 1999-12-15 | 2005-07-26 | Intel Corporation | Method and system for mode adaptation in wireless communication |
US6351499B1 (en) * | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6298035B1 (en) | 1999-12-21 | 2001-10-02 | Nokia Networks Oy | Estimation of two propagation channels in OFDM |
US6681256B1 (en) * | 1999-12-21 | 2004-01-20 | Nokia Corporation | Method for dynamically selecting allocation of random access channels in a communication system |
US6423190B2 (en) | 2000-01-07 | 2002-07-23 | Delphi Technologies, Inc. | Pulse density modulation for uniform barrier discharge in a nonthermal plasma reactor |
US6888809B1 (en) | 2000-01-13 | 2005-05-03 | Lucent Technologies Inc. | Space-time processing for multiple-input, multiple-output, wireless systems |
US7248862B2 (en) | 2000-01-19 | 2007-07-24 | Sony Ericsson Mobile Communications Ab | Method and apparatus for retrieving calling party information in a mobile communications system |
US6956835B2 (en) * | 2000-01-20 | 2005-10-18 | Nortel Networks Limited | Multi-carrier arrangement for high speed data |
US6377632B1 (en) | 2000-01-24 | 2002-04-23 | Iospan Wireless, Inc. | Wireless communication system and method using stochastic space-time/frequency division multiplexing |
US6253063B1 (en) | 2000-01-25 | 2001-06-26 | Motorola, Inc. | Method and apparatus for selecting a communication data rate between mobile and base stations |
US6996100B1 (en) * | 2000-02-03 | 2006-02-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and system for medium access on a radio channel |
US7099413B2 (en) | 2000-02-07 | 2006-08-29 | At&T Corp. | Method for near optimal joint channel estimation and data detection for COFDM systems |
US7047011B1 (en) | 2000-02-10 | 2006-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Synchronization in diversity handover |
US6922388B1 (en) | 2000-02-11 | 2005-07-26 | Lucent Technologies Inc. | Signal construction, detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system |
US7590095B2 (en) | 2000-02-14 | 2009-09-15 | Qualcomm Incorporated | Method and apparatus for power control of multiple channels in a wireless communication system |
US6865237B1 (en) * | 2000-02-22 | 2005-03-08 | Nokia Mobile Phones Limited | Method and system for digital signal transmission |
JP3826653B2 (ja) | 2000-02-25 | 2006-09-27 | Kddi株式会社 | 無線通信システムのサブキャリア割当方法 |
US7827581B1 (en) | 2000-02-29 | 2010-11-02 | BE Labs, Inc. | Wireless multimedia system |
US6826240B1 (en) | 2000-03-15 | 2004-11-30 | Motorola, Inc. | Method and device for multi-user channel estimation |
US6600772B1 (en) | 2000-03-21 | 2003-07-29 | Interdigital Communications Corporation | Combined closed loop/open loop power control in a time division duplex communication system |
US6954465B2 (en) | 2000-03-22 | 2005-10-11 | At&T Corp. | Dynamic channel assignment |
US20020154705A1 (en) | 2000-03-22 | 2002-10-24 | Walton Jay R. | High efficiency high performance communications system employing multi-carrier modulation |
US6473467B1 (en) | 2000-03-22 | 2002-10-29 | Qualcomm Incorporated | Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system |
US6952454B1 (en) | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
US6940845B2 (en) * | 2000-03-23 | 2005-09-06 | At & T, Corp. | Asymmetric measurement-based dynamic packet assignment system and method for wireless data services |
US6795392B1 (en) | 2000-03-27 | 2004-09-21 | At&T Corp. | Clustered OFDM with channel estimation |
JP2001285192A (ja) | 2000-03-29 | 2001-10-12 | Toshiba Corp | 移動通信端末と基地局 |
US6493331B1 (en) | 2000-03-30 | 2002-12-10 | Qualcomm Incorporated | Method and apparatus for controlling transmissions of a communications systems |
CA2344014A1 (en) * | 2000-04-12 | 2001-10-12 | Yiyan Wu | Method and system for broadcasting a digital data signal within an analog tv signal using orthogonal frequency division multiplexing |
DE10018369A1 (de) * | 2000-04-13 | 2001-10-25 | Joergen Brosow | Vorrichtung zum Auslösen eines Schusses aus einer Schußwaffe |
US6961364B1 (en) | 2000-04-18 | 2005-11-01 | Flarion Technologies, Inc. | Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
US6954481B1 (en) | 2000-04-18 | 2005-10-11 | Flarion Technologies, Inc. | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
AU2001257133A1 (en) * | 2000-04-22 | 2001-11-07 | Atheros Communications, Inc. | Multi-carrier communication systems employing variable symbol rates and number of carriers |
US6553234B1 (en) * | 2000-05-01 | 2003-04-22 | Alcatel Canada, Inc. | Method of frequency reuse in a fixed access wireless network |
US7020072B1 (en) * | 2000-05-09 | 2006-03-28 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing transmit diversity system for frequency-selective fading channels |
US6785227B1 (en) * | 2000-05-11 | 2004-08-31 | Lucent Technologies Inc. | Method and apparatus for multi-layer resource management in wireless communications systems |
US6519462B1 (en) * | 2000-05-11 | 2003-02-11 | Lucent Technologies Inc. | Method and apparatus for multi-user resource management in wireless communication systems |
US7050479B1 (en) * | 2000-05-12 | 2006-05-23 | The Titan Corporation | System for, and method of, providing frequency hopping |
US7068628B2 (en) | 2000-05-22 | 2006-06-27 | At&T Corp. | MIMO OFDM system |
US6385462B1 (en) | 2000-05-26 | 2002-05-07 | Motorola, Inc. | Method and system for criterion based adaptive power allocation in a communication system with selective determination of modulation and coding |
GB2363256B (en) | 2000-06-07 | 2004-05-12 | Motorola Inc | Adaptive antenna array and method of controlling operation thereof |
US7209745B1 (en) | 2000-06-09 | 2007-04-24 | Intel Corporation | Cellular wireless re-use structure that allows spatial multiplexing and diversity communication |
US8363744B2 (en) | 2001-06-10 | 2013-01-29 | Aloft Media, Llc | Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks |
US7095719B1 (en) * | 2000-06-20 | 2006-08-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for dynamic packet selection in uncoordinated radio systems |
US20020016173A1 (en) * | 2000-06-21 | 2002-02-07 | Hunzinger Jason F. | Communication of location information in a wireless communication system |
GB0015512D0 (en) | 2000-06-23 | 2000-08-16 | Univ Surrey | Channel allocation and assignment methods and systems |
CN1334658A (zh) | 2000-06-28 | 2002-02-06 | 三星电子株式会社 | 用于异步cdma通信***中移动站的导频信道功率测量装置 |
US6654612B1 (en) | 2000-06-30 | 2003-11-25 | Lucent Technologies Inc. | Distributed channel assignment method |
US6647078B1 (en) | 2000-06-30 | 2003-11-11 | Motorola, Inc. | Method and device for multi-user frequency-domain channel estimation based on gradient optimization techniques |
US6834045B1 (en) | 2000-07-11 | 2004-12-21 | Lappetelaeinen Antti | Assembly, and associated method, for facilitating frequency allocations in a radio communications system to attain statistical spreading of electromagnetic energy |
JP3903695B2 (ja) * | 2000-07-12 | 2007-04-11 | 株式会社日立製作所 | マルチアプリケーション対応デジタル無線通信システム、その基地局及び移動局 |
US6584330B1 (en) | 2000-07-18 | 2003-06-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive power management for a node of a cellular telecommunications network |
JP4481450B2 (ja) | 2000-07-18 | 2010-06-16 | キヤノン株式会社 | 無線通信装置、無線リンク制御方法、及び記憶媒体 |
US7418043B2 (en) | 2000-07-19 | 2008-08-26 | Lot 41 Acquisition Foundation, Llc | Software adaptable high performance multicarrier transmission protocol |
US7224741B1 (en) | 2000-07-24 | 2007-05-29 | Zion Hadad | System and method for cellular communications |
US7230908B2 (en) | 2000-07-24 | 2007-06-12 | Viasat, Inc. | Dynamic link assignment in a communication system |
AU2001282424A1 (en) | 2000-07-24 | 2002-02-05 | Runcom Communications Ltd. | Wireless interactive system and method |
KR20100003300A (ko) | 2000-07-26 | 2010-01-07 | 인터디지탈 테크날러지 코포레이션 | 가변 다중 속도 통신 시스템용 고속 적응 전력 제어 방법 및 시스템 |
US6920192B1 (en) | 2000-08-03 | 2005-07-19 | Lucent Technologies Inc. | Adaptive antenna array methods and apparatus for use in a multi-access wireless communication system |
US6330460B1 (en) * | 2000-08-21 | 2001-12-11 | Metawave Communications Corporation | Simultaneous forward link beam forming and learning method for mobile high rate data traffic |
US6985434B2 (en) * | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US6937592B1 (en) | 2000-09-01 | 2005-08-30 | Intel Corporation | Wireless communications system that supports multiple modes of operation |
JP3505618B2 (ja) | 2000-09-04 | 2004-03-08 | 株式会社椿本チエイン | 給電装置、搬送車及び搬送システム |
JP2002077084A (ja) | 2000-09-04 | 2002-03-15 | Matsushita Electric Ind Co Ltd | 信号配信システム、送信装置、受信装置、媒体、および情報集合体 |
US6516249B1 (en) * | 2000-09-05 | 2003-02-04 | Lockheed Martin Corporation | Fluid control system with autonomously controlled pump |
US6400699B1 (en) * | 2000-09-12 | 2002-06-04 | Iospan Wireless, Inc. | Transmission scheduler for a multiple antenna wireless cellular network |
US6985433B1 (en) | 2000-09-15 | 2006-01-10 | Flarion Technologies, Inc. | Methods and apparatus for determining minimum cyclicprefix durations |
US6694147B1 (en) * | 2000-09-15 | 2004-02-17 | Flarion Technologies, Inc. | Methods and apparatus for transmitting information between a basestation and multiple mobile stations |
US6760882B1 (en) | 2000-09-19 | 2004-07-06 | Intel Corporation | Mode selection for data transmission in wireless communication channels based on statistical parameters |
US6928120B1 (en) | 2000-09-25 | 2005-08-09 | Cingular Wireless Ii, Llc | Methods and apparatus for use in reducing residual phase error in OFDM communication signals |
US6701129B1 (en) * | 2000-09-27 | 2004-03-02 | Nortel Networks Limited | Receiver based adaptive modulation scheme |
US7051268B1 (en) | 2000-09-29 | 2006-05-23 | Qualcomm Incorporated | Method and apparatus for reducing power consumption of a decoder in a communication system |
US6721569B1 (en) | 2000-09-29 | 2004-04-13 | Nortel Networks Limited | Dynamic sub-carrier assignment in OFDM systems |
US7062294B1 (en) | 2000-09-29 | 2006-06-13 | Arraycomm, Llc. | Downlink transmission in a wireless data communication system having a base station with a smart antenna system |
US7110378B2 (en) * | 2000-10-03 | 2006-09-19 | Wisconsin Alumni Research Foundation | Channel aware optimal space-time signaling for wireless communication over wideband multipath channels |
US7203191B2 (en) * | 2000-10-10 | 2007-04-10 | The Regents Of The University Of California | Method for loop-free multipath routing using predecessor information |
US7072315B1 (en) | 2000-10-10 | 2006-07-04 | Adaptix, Inc. | Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks |
US6870808B1 (en) * | 2000-10-18 | 2005-03-22 | Adaptix, Inc. | Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks |
US6748222B1 (en) | 2000-11-06 | 2004-06-08 | Nortel Networks Limited | Method and system for providing load-balanced communication |
US6567387B1 (en) * | 2000-11-07 | 2003-05-20 | Intel Corporation | System and method for data transmission from multiple wireless base transceiver stations to a subscriber unit |
US6711416B1 (en) * | 2000-11-28 | 2004-03-23 | Hongliang Zhang | Fixed wireless communication system having power control for downlink data traffic |
US6751480B2 (en) | 2000-12-01 | 2004-06-15 | Lucent Technologies Inc. | Method for simultaneously conveying information to multiple mobiles with multiple antennas |
US6996075B2 (en) * | 2000-12-14 | 2006-02-07 | Pulse-Link, Inc. | Pre-testing and certification of multiple access codes |
US6907244B2 (en) * | 2000-12-14 | 2005-06-14 | Pulse-Link, Inc. | Hand-off between ultra-wideband cell sites |
JP4213466B2 (ja) | 2000-12-15 | 2009-01-21 | アダプティックス インコーポレイテッド | 適応クラスタ構成及び切替による多重キャリア通信 |
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
JP4031707B2 (ja) | 2000-12-15 | 2008-01-09 | アダプティックス インコーポレイテッド | グループベースのサブキャリア割当による多重キャリア通信 |
JP3895930B2 (ja) | 2001-01-09 | 2007-03-22 | 三洋電機株式会社 | 固体撮像装置 |
DE10101778C1 (de) | 2001-01-17 | 2002-06-20 | Saar Gummiwerk Gmbh | Trägerband für Karosseriedichtungen |
JP2002232963A (ja) | 2001-01-29 | 2002-08-16 | Laurel Intelligent Systems Co Ltd | 保安維持システム |
CN1240099C (zh) | 2001-01-30 | 2006-02-01 | 株式会社东芝 | 彩色阴极射线管及其制造方法 |
US6882619B1 (en) | 2001-02-21 | 2005-04-19 | At&T Corp. | Interference suppressing OFDM method for wireless communications |
US7158474B1 (en) * | 2001-02-21 | 2007-01-02 | At&T Corp. | Interference suppressing OFDM system for wireless communications |
US6760587B2 (en) | 2001-02-23 | 2004-07-06 | Qualcomm Incorporated | Forward-link scheduling in a wireless communication system during soft and softer handoff |
US6940827B2 (en) | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
CA2376962A1 (en) | 2001-04-02 | 2002-10-02 | Lucent Technologies Inc. | Method and system for umts packet transmission scheduling on uplink channels |
KR100510434B1 (ko) | 2001-04-09 | 2005-08-26 | 니폰덴신뎅와 가부시키가이샤 | Ofdm신호전달 시스템, ofdm신호 송신장치 및ofdm신호 수신장치 |
GB2375460B (en) | 2001-05-09 | 2004-09-29 | Motorola Inc | Cellular radio communication systems and methods and equipment for use therein |
US6785341B2 (en) * | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
US7206840B2 (en) | 2001-05-11 | 2007-04-17 | Koninklike Philips Electronics N.V. | Dynamic frequency selection scheme for IEEE 802.11 WLANs |
DE10124179A1 (de) | 2001-05-17 | 2002-07-25 | Infineon Technologies Ag | Vorrichtung und Verfahren zur Regelung der Ausgangsleistung von Mobilfunkstationen |
US6996056B2 (en) * | 2001-05-31 | 2006-02-07 | Nortel Networks Limited | Method and apparatus for orthogonal code management in CDMA systems using smart antenna technology |
US20020183010A1 (en) | 2001-06-05 | 2002-12-05 | Catreux Severine E. | Wireless communication systems with adaptive channelization and link adaptation |
SG115481A1 (en) * | 2001-06-13 | 2005-10-28 | Ntt Docomo Inc | Mobile communication systems, mobile communication methods, base stations, mobile stations, and signal transmission methods in the mobile communication systems |
US7594010B2 (en) | 2001-06-28 | 2009-09-22 | King's London College | Virtual antenna array |
US6751444B1 (en) | 2001-07-02 | 2004-06-15 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
US7577118B2 (en) * | 2001-07-24 | 2009-08-18 | Intel Corporation | System and method of classifying remote users according to link quality, and scheduling wireless transmission of information to the to the users based upon the classifications |
JP2002232936A (ja) | 2001-08-09 | 2002-08-16 | Hitachi Ltd | 位置算出方法、位置算出装置及びそのプログラム |
KR100703295B1 (ko) | 2001-08-18 | 2007-04-03 | 삼성전자주식회사 | 이동통신시스템에서 안테나 어레이를 이용한 데이터 송/수신 장치 및 방법 |
AU2002332038A1 (en) * | 2001-10-09 | 2003-04-22 | Interdigital Technology Corporation | Pathloss aided closed loop power control |
US20030067890A1 (en) | 2001-10-10 | 2003-04-10 | Sandesh Goel | System and method for providing automatic re-transmission of wirelessly transmitted information |
US6907246B2 (en) | 2001-11-20 | 2005-06-14 | Navini Networks, Inc. | Method and system for reducing wireless multi-cell interferences through segregated channel assignments and segregated antenna beams |
US6699784B2 (en) * | 2001-12-14 | 2004-03-02 | Applied Materials Inc. | Method for depositing a low k dielectric film (K>3.5) for hard mask application |
US7116944B2 (en) | 2002-02-07 | 2006-10-03 | Lucent Technologies Inc. | Method and apparatus for feedback error detection in a wireless communications systems |
US7295626B2 (en) | 2002-03-08 | 2007-11-13 | Alvarion Ltd. | Orthogonal division multiple access technique incorporating single carrier and OFDM signals |
US7450604B2 (en) | 2002-04-20 | 2008-11-11 | Conexant Systems, Inc. | Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments |
JP3751265B2 (ja) | 2002-06-20 | 2006-03-01 | 松下電器産業株式会社 | 無線通信システムおよびスケジューリング方法 |
US6898193B2 (en) | 2002-06-20 | 2005-05-24 | Qualcomm, Incorporated | Adaptive gain adjustment control |
US7551546B2 (en) * | 2002-06-27 | 2009-06-23 | Nortel Networks Limited | Dual-mode shared OFDM methods/transmitters, receivers and systems |
US7269389B2 (en) | 2002-07-03 | 2007-09-11 | Arraycomm, Llc | Selective power control messaging |
US7200424B2 (en) * | 2002-07-15 | 2007-04-03 | Bellsouth Intelectual Property Corporation | Systems and methods for restricting the use and movement of telephony devices |
GB2392065B (en) | 2002-08-15 | 2004-12-29 | Toshiba Res Europ Ltd | Signal decoding methods and apparatus |
US20040047309A1 (en) * | 2002-09-09 | 2004-03-11 | Kai Barnes | Method and base station for power control in TDMA radio system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
AU2002364698A1 (en) | 2002-11-07 | 2004-06-03 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
US6748235B1 (en) * | 2002-11-12 | 2004-06-08 | Interdigital Technology Corporation | Power control during a transmission pause |
CN1173265C (zh) | 2002-12-24 | 2004-10-27 | 威盛电子股份有限公司 | 可适用多重磁盘阵列的磁盘管理*** |
CN1245623C (zh) | 2003-03-04 | 2006-03-15 | 南京康海药业有限公司 | 香菇多糖分子量及分子量分布测定方法 |
KR100532295B1 (ko) | 2003-03-25 | 2005-11-29 | 재단법인서울대학교산학협력재단 | 다중 송수신 안테나 시스템을 위한 무선통신 장치 및방법 |
US7142864B2 (en) * | 2003-04-23 | 2006-11-28 | Qualcomm, Incorporated | Methods and apparatus of enhancing performance in wireless communication systems |
KR100526542B1 (ko) | 2003-05-15 | 2005-11-08 | 삼성전자주식회사 | 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법 |
CN1810069B (zh) * | 2003-06-26 | 2010-06-23 | 应达公司 | 感应加热线圈的电磁屏蔽 |
US7379506B2 (en) * | 2003-09-23 | 2008-05-27 | Nokia Corporation | Apparatus, and associated method, for assigning data to transmit antennas of a multiple transmit antenna transmitter |
JP4152855B2 (ja) | 2003-10-01 | 2008-09-17 | リンテック株式会社 | 樹脂封止型の電子デバイスの製造方法。 |
WO2005060132A1 (en) | 2003-12-18 | 2005-06-30 | Electronics And Telecommunications Research Institute | Method and apparatus for requesting and reporting channel quality information in mobile communication system |
FI20040269A0 (fi) | 2004-02-20 | 2004-02-20 | Nokia Corp | Tiedonsiirtomenetelmä ja -järjestelmä, tukiasema ja lähetin-vastaanotin |
KR101067772B1 (ko) | 2004-04-22 | 2011-09-28 | 엘지전자 주식회사 | 직교 주파수 분할 다중화 방식에 적용되는 부반송파 할당방법 |
US8014781B2 (en) * | 2004-06-08 | 2011-09-06 | Qualcomm Incorporated | Intra-cell common reuse for a wireless communications system |
US7573851B2 (en) | 2004-12-07 | 2009-08-11 | Adaptix, Inc. | Method and system for switching antenna and channel assignments in broadband wireless networks |
MY146867A (en) | 2005-09-29 | 2012-09-28 | Interdigital Tech Corp | Mimo beamforming-based single carrier frequency division multiple access system |
US20070147536A1 (en) * | 2005-12-27 | 2007-06-28 | Ezer Melzer | Wireless communication device employing interference-sensitive mode selection and associated methods |
KR100860663B1 (ko) * | 2006-05-15 | 2008-09-26 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식의 이동 통신 시스템에서자원 할당 장치 및 방법 |
JP4146871B2 (ja) * | 2006-08-24 | 2008-09-10 | 松下電器産業株式会社 | 基地局装置及び無線通信方法 |
KR20080065518A (ko) * | 2007-01-09 | 2008-07-14 | 삼성전자주식회사 | 단일 캐리어 주파수 분할 다중 접속 방식시스템에서 주파수호핑 방법 및 장치 |
KR20080090918A (ko) | 2007-04-06 | 2008-10-09 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속 방식의 분산 안테나시스템에서 부반송파 할당을 위한 서브 셀 선택 장치 및방법 |
WO2009050793A1 (ja) * | 2007-10-16 | 2009-04-23 | Fujitsu Limited | 移動局および無線基地局 |
US8619804B2 (en) | 2007-12-14 | 2013-12-31 | Full Spectrum Inc. | System and method for the delivery of high speed data services over dedicated and non-dedicated private land mobile radio (PLMR) channels using cognitive radio technology |
JP5494777B2 (ja) | 2012-10-25 | 2014-05-21 | 富士通株式会社 | 無線通信システムにおける回線設定方法,無線基地局及び無線端末 |
US9055592B2 (en) * | 2013-01-07 | 2015-06-09 | Netgear, Inc. | IEEE 802.11 communication utilizing carrier specific interference mitigation |
-
2000
- 2000-12-15 US US09/738,086 patent/US6947748B2/en not_active Expired - Fee Related
-
2001
- 2001-04-17 US US09/837,701 patent/US7146172B2/en not_active Expired - Fee Related
- 2001-04-17 US US09/837,337 patent/US6904283B2/en not_active Expired - Fee Related
- 2001-12-13 CN CN2006100810625A patent/CN1874334B/zh not_active Expired - Fee Related
- 2001-12-13 AU AU2002236627A patent/AU2002236627A1/en not_active Abandoned
- 2001-12-13 CN CN201510633715.5A patent/CN105187168A/zh active Pending
- 2001-12-13 KR KR1020037007962A patent/KR100688104B1/ko not_active IP Right Cessation
- 2001-12-13 EP EP15178694.4A patent/EP2988449A1/en not_active Withdrawn
- 2001-12-13 CN CN201510633879.8A patent/CN105099624A/zh active Pending
- 2001-12-13 CN CN201510633851.4A patent/CN105306170A/zh active Pending
- 2001-12-13 ES ES01986165T patent/ES2403829T3/es not_active Expired - Lifetime
- 2001-12-13 KR KR1020037007961A patent/KR100695048B1/ko not_active IP Right Cessation
- 2001-12-13 CN CN201510633854.8A patent/CN105356970A/zh active Pending
- 2001-12-13 CN CN201510632884.7A patent/CN105356969A/zh active Pending
- 2001-12-13 MX MXPA03005308A patent/MXPA03005308A/es active IP Right Grant
- 2001-12-13 CA CA2871045A patent/CA2871045C/en not_active Expired - Fee Related
- 2001-12-13 KR KR1020037007963A patent/KR100676667B1/ko not_active IP Right Cessation
- 2001-12-13 WO PCT/US2001/048421 patent/WO2002049305A2/en active Search and Examination
- 2001-12-13 CN CN200910132399A patent/CN101707806A/zh active Pending
- 2001-12-13 EP EP01986165A patent/EP1344365B8/en not_active Expired - Lifetime
- 2001-12-13 EP EP20140172428 patent/EP2806596A1/en not_active Withdrawn
- 2001-12-13 EP EP14172441.9A patent/EP2894808A1/en not_active Withdrawn
- 2001-12-13 CA CA2431844A patent/CA2431844C/en not_active Expired - Fee Related
- 2001-12-13 CN CN201510632883.2A patent/CN105119700A/zh active Pending
- 2001-12-13 CN CN201510632865.4A patent/CN105187166A/zh active Pending
- 2001-12-13 EP EP20100175770 patent/EP2367314B1/en not_active Revoked
- 2001-12-13 EP EP14172438.5A patent/EP2879319A1/en not_active Withdrawn
- 2001-12-13 CN CN201210378025.6A patent/CN102932120B/zh not_active Expired - Fee Related
- 2001-12-13 CN CNA018206964A patent/CN1484906A/zh active Pending
- 2001-12-13 EP EP20140172433 patent/EP2800296A1/en not_active Withdrawn
- 2001-12-13 EP EP15178692.8A patent/EP2988448A1/en not_active Withdrawn
- 2001-12-13 CA CA 2756663 patent/CA2756663A1/en not_active Abandoned
- 2001-12-13 CA CA 2816471 patent/CA2816471A1/en not_active Abandoned
- 2001-12-13 CA CA2884656A patent/CA2884656C/en not_active Expired - Fee Related
- 2001-12-13 CA CA 2776353 patent/CA2776353A1/en not_active Abandoned
- 2001-12-13 CN CN201510306216.5A patent/CN105162561A/zh active Pending
- 2001-12-13 JP JP2002550683A patent/JP4201595B2/ja not_active Expired - Fee Related
- 2001-12-13 CN CN201210528439.2A patent/CN103036842B/zh not_active Expired - Fee Related
-
2004
- 2004-09-09 HK HK04106842.3A patent/HK1065192A1/xx not_active IP Right Cessation
- 2004-09-09 HK HK07105424A patent/HK1101312A1/xx not_active IP Right Cessation
-
2005
- 2005-08-08 US US11/199,586 patent/US7454212B2/en not_active Expired - Fee Related
-
2006
- 2006-11-02 US US11/592,084 patent/US7379742B2/en not_active Expired - Fee Related
-
2007
- 2007-10-31 US US11/931,759 patent/US7489934B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/931,926 patent/US7715358B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/931,385 patent/US7650152B2/en not_active Expired - Fee Related
-
2008
- 2008-07-14 JP JP2008182746A patent/JP5119070B2/ja not_active Expired - Fee Related
- 2008-07-28 JP JP2008193243A patent/JP5297111B2/ja not_active Expired - Fee Related
-
2009
- 2009-03-06 US US12/399,624 patent/US8738020B2/en not_active Expired - Fee Related
-
2010
- 2010-03-29 US US12/748,781 patent/US8036199B2/en not_active Expired - Fee Related
-
2011
- 2011-03-21 US US13/053,091 patent/US8743717B2/en not_active Expired - Fee Related
- 2011-03-21 US US13/053,127 patent/US20110222495A1/en not_active Abandoned
- 2011-09-12 US US13/230,625 patent/US8964719B2/en not_active Expired - Fee Related
- 2011-10-21 JP JP2011231792A patent/JP5027330B2/ja not_active Expired - Fee Related
-
2012
- 2012-03-15 HK HK12102630.8A patent/HK1162779A1/zh not_active IP Right Cessation
- 2012-05-10 JP JP2012108312A patent/JP5272095B2/ja not_active Expired - Fee Related
- 2012-12-31 US US13/731,832 patent/US8891414B2/en not_active Expired - Fee Related
- 2012-12-31 US US13/731,825 patent/US8743729B2/en not_active Expired - Fee Related
-
2013
- 2013-02-20 JP JP2013031357A patent/JP5288669B2/ja not_active Expired - Fee Related
- 2013-03-13 US US13/801,788 patent/US8767702B2/en not_active Expired - Fee Related
- 2013-03-13 US US13/801,846 patent/US8750238B2/en not_active Expired - Fee Related
- 2013-04-30 JP JP2013095014A patent/JP5327996B2/ja not_active Expired - Fee Related
- 2013-05-30 JP JP2013114497A patent/JP5435681B2/ja not_active Expired - Fee Related
- 2013-06-03 JP JP2013117172A patent/JP5475910B2/ja not_active Expired - Fee Related
- 2013-10-16 JP JP2013215859A patent/JP5606611B2/ja not_active Expired - Fee Related
- 2013-12-25 JP JP2013266861A patent/JP5606616B2/ja not_active Expired - Fee Related
-
2014
- 2014-01-27 JP JP2014012700A patent/JP5674072B2/ja not_active Expired - Fee Related
- 2014-05-23 US US14/286,884 patent/US8934445B2/en not_active Expired - Fee Related
- 2014-05-23 US US14/286,780 patent/US8958386B2/en not_active Expired - Fee Related
- 2014-05-29 JP JP2014111245A patent/JP5714160B2/ja not_active Expired - Fee Related
- 2014-06-02 US US14/294,117 patent/US20140269609A1/en not_active Abandoned
- 2014-06-02 US US14/294,106 patent/US8934375B2/en not_active Expired - Fee Related
- 2014-09-19 US US14/491,904 patent/US20150016392A1/en not_active Abandoned
- 2014-09-26 JP JP2014196868A patent/JP5784207B2/ja not_active Expired - Fee Related
-
2015
- 2015-02-11 HK HK15101519.3A patent/HK1201106A1/zh unknown
- 2015-03-11 JP JP2015048358A patent/JP2015146601A/ja active Pending
- 2015-04-03 US US14/678,848 patent/US9191138B2/en not_active Expired - Fee Related
- 2015-04-24 HK HK15103986.3A patent/HK1203709A1/zh unknown
- 2015-05-12 JP JP2015097565A patent/JP5826425B2/ja not_active Expired - Fee Related
- 2015-07-23 US US14/807,731 patent/US9219572B2/en not_active Expired - Fee Related
- 2015-07-23 US US14/807,644 patent/US9203553B1/en not_active Expired - Fee Related
- 2015-07-23 US US14/807,749 patent/US9344211B2/en not_active Expired - Fee Related
- 2015-08-10 JP JP2015158289A patent/JP2016007034A/ja active Pending
- 2015-08-14 US US14/827,037 patent/US9210708B1/en not_active Expired - Fee Related
-
2016
- 2016-04-07 US US15/093,553 patent/US20160218842A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997001256A1 (en) * | 1995-06-22 | 1997-01-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive channel allocation in a frequency division multiplexed system |
EP0822682A1 (en) * | 1996-07-05 | 1998-02-04 | Deutsche Thomson-Brandt Gmbh | Method for the frequency correction of multicarrier signals and related apparatus |
EP0869647A2 (en) * | 1997-04-01 | 1998-10-07 | Lucent Technologies Inc. | System of multicarreir modulation with dynamically scalable operating parameters |
US6144696A (en) * | 1997-12-31 | 2000-11-07 | At&T Corp. | Spread spectrum bit allocation algorithm |
Non-Patent Citations (2)
Title |
---|
J. CHUANG ET AL: ""Wideband wireless data access based on OFDM and dynamic packet assignment"", 《WCNC. 1999 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE》 * |
RAINER GRÜNHEID ET AL: ""Adaptive Modulation and Multiple Access for the OFDM Transmission Technique"", 《WIRELESS PERSONAL COMMUNICATIONS》 * |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102932120B (zh) | 一种用于在ofdma***中分配副载波的方法及设备 | |
CN100456758C (zh) | 具有基于组的副载波分配的多载波通信方法 | |
CN1524367A (zh) | 具有自适应群集配置和交换的多载波通信 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |