CA2484373A1 - Multi-carrier communication with time division multiplexing and carrier-selective loading - Google Patents

Multi-carrier communication with time division multiplexing and carrier-selective loading Download PDF

Info

Publication number
CA2484373A1
CA2484373A1 CA002484373A CA2484373A CA2484373A1 CA 2484373 A1 CA2484373 A1 CA 2484373A1 CA 002484373 A CA002484373 A CA 002484373A CA 2484373 A CA2484373 A CA 2484373A CA 2484373 A1 CA2484373 A1 CA 2484373A1
Authority
CA
Canada
Prior art keywords
subscriber
cluster
data
loading
time division
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002484373A
Other languages
French (fr)
Other versions
CA2484373C (en
Inventor
Xiaodong Li
Hui Liu
Hujun Yin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsoft Technology Licensing LLC
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2484373A1 publication Critical patent/CA2484373A1/en
Application granted granted Critical
Publication of CA2484373C publication Critical patent/CA2484373C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J4/00—Combined time-division and frequency-division multiplex systems
    • 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
    • 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

Abstract

A method for subcarrier allocation and loading for a multi-carrier, multi- subscriber system is described. At least one cluster (104) in a first and second set of clusters of subcarriers is associated for use in communication with a first and second subscriber, respectively. Then, for each cluster associated for use in communication with the first subscriber and the second subscriber, usage of that cluster is multiplexed between the first subscribe r during a first time division and the second subscriber during a second time division.

Claims (32)

1. A method for subcarrier allocation and loading for a multi-carrier, multi-subscriber system, comprising:
associating at least one cluster in a first set of clusters of subcarriers for use in communication with a first subscriber;
associating at least one cluster in a second set of clusters of subcarriers for use in communication with a second subscriber;
for each cluster associated for use in communication with the first subscriber and the second subscriber, multiplexing a usage of said each cluster between the first subscriber during a first time division and the second subscriber during a second time division.
2. The method of claim 1, wherein multiplexing includes assigning said each cluster to a one of the first subscriber and the second subscriber that has a highest transmission rate of transmission rates of subscribers associated with said each cluster.
3. The method of claim 2, wherein the transmission rates are weighted.
4. The method of claim 3, wherein each one of the transmission rates is weighted based on a proportion of time that a subscriber has transmitted on said each cluster.
5. The method of claim 1, wherein multiplexing includes periodically reassigning said each cluster to a one of the first subscriber and the second subscriber.
6. The method of claim 1, wherein multiplexing includes assigning said each cluster to a one of the first subscriber and the second subscriber based on a probability that the cluster will be used by the first subscriber and a probability that the cluster will be used by the second subscriber.
7. The method of claim 1, wherein associating at least one cluster in the first set for use in communication with the first subscriber includes selecting the at least one cluster based on a SINR and a traffic load of each one of the at least one cluster.
8. The method of claim 7, wherein the traffic load of each one of the at least one cluster is a queue fullness of a queue associated with that one of the at least one cluster.
9. The method of claim 7, wherein selecting the at least one cluster based on a SINR and a traffic load of each one of the at least one cluster includes balancing lengths of queues associated with each one of the at least one cluster.
10. The method of claim 1, wherein multiplexing includes assigning said each cluster to a one of the first subscriber and the second subscriber based on a quality of service requirement of the first subscriber and a quality of service requirement of the second subscriber.
11. The method of claim 10, wherein assigning includes allocating said each cluster to a one of the first subscriber and the second subscriber having a lower quality of service requirement than that had by another one of the first subscriber and the second subscriber during periods of time in which a one of the first subscriber and the second subscriber having a higher quality of service requirement than that had by another one of the first subscriber and the.second subscriber does not transmit on said each cluster.
12. The method of claim 1, wherein associating at least one cluster in the first set for use in communication with the first subscriber includes selecting the at least one cluster based on a bandwidth requirement of the first subscriber.
13. The method of claim 1, wherein associating at least one cluster in the first set for use in communication with the first subscriber includes selecting a subset of the first set having a least instantaneous delay ratio for the first subscriber of any instantaneous delay ratio for the first subscriber of any subset of the first set.
14. The method of claim 1, wherein associating at least one cluster in the first set for use in communication with the first subscriber includes selecting a subset of the first set having a least statistical delay ratio for the first subscriber of any statistical delay ratio for the first subscriber of any subset of the first set.
15. The method of claim 1, wherein multiplexing includes:
loading data associated with the first subscriber into a queue associated with said each cluster upon determining that a data packet is present in a queue associated with the first subscriber; and loading data associated with the second subscriber into the queue associated with said each cluster upon determining that a data packet is present in a queue associated with the second subscriber.
16. The method of claim 15, wherein loading data associated with the first subscriber and loading data associated with the second subscriber includes loading the data associated with a one of the first subscriber and the second subscriber having a higher average transmission rate than that had by another one of the first subscriber and the second subscriber before loading the data associated with a one of the first subscriber and the second subscriber having a lower average transmission rate than that had by another one of the first subscriber and the second subscriber.
17. The method of claim 16, wherein the average transmission rate of the first subscriber and the average transmission rate of the second subscriber are weighted.
18. The method of claim 16, wherein the average transmission rate of the first subscriber is weighted based on a proportion of time that the first subscriber has transmitted on said each cluster and the average transmission rate of the second subscriber is weighted based on a proportion of time that the second subscriber has transmitted on said each cluster.
19. The method of claim 15, wherein loading data associated with the first subscriber and loading data associated with the second subscriber includes loading the data associated with a one of the first subscriber and the second subscriber having a higher quality of service requirement than that had by another one of the first subscriber and the second subscriber before loading the data associated with a one of the first subscriber and the second subscriber having a lower quality of service requirement than that had by another one of the first subscriber and the second subscriber.
20. The method of claim 15, wherein loading data associated with the first subscriber into the queue associated with said each cluster includes loading data into a segment of the queue having a lowest delay of any delay of any segment of the queue.
21. The method of claim 20, wherein loading data associated with the first subscriber into the queue associated with said each cluster includes loading data into a segment of the queue having a smallest cluster index of any cluster index of any segment of the queue.
22. The method of claim 15, wherein loading data associated with the first subscriber into a queue associated with said each cluster includes preempting a loading of data associated with a third subscriber into the queue upon determining that the data associated with the first subscriber has a higher quality of service requirement than that had by the data associated with the third subscriber.
23. The method of claim 15, wherein loading data associated with the first subscriber includes loading data having a highest quality of service requirement of any data associated with the first subscriber before loading other data associated with the first subscriber.
24. The method of claim 1, wherein multiplexing includes informing the first subscriber of a first time division multiplexing index, corresponding to the first subscriber, for said each cluster, during an allocation phase.
25. The method of claim 1, wherein multiplexing includes embedding a time division multiplexing index, corresponding to the first subscriber, in a segment of said each cluster intended for the first subscriber.
26. The method of claim 25, wherein the time division multiplexing index corresponding to the first subscriber varies between different ones of the clusters.
27. The method of claim 25, wherein embedding the time division multiplexing index includes encoding the time division multiplexing index.
28. The method of claim 1, wherein multiplexing includes transmitting, with data intended for the first subscriber that has been loaded into a segment of said each cluster, a preamble for the segment that includes a time division multiplexing index, corresponding to the first subscriber, for said each cluster.
29. The method of claim 28, further comprising:

the first subscriber receiving the data intended for the first subscriber, with the preamble; and upon the first subscriber recognizing the time division multiplexing index included in the preamble as matching a time division multiplexing index received by the first subscriber during an allocation phase, the first subscriber decoding the data and passing the data to an upper layer.
30. The method of claim 1, wherein multiplexing includes scrambling data, intended for the first subscriber, using a scrambling sequence corresponding to a time division multiplexing index, corresponding to the first subscriber, for said each cluster.
31. The method of claim 30, further comprising:
the first subscriber receiving the data intended for the first subscriber; and upon the first subscriber successfully descrambling the data using the scrambling sequence corresponding to a time division multiplexing index received by the first subscriber during an allocation phase, the first subscriber decoding the data and passing the data to an upper layer.
32. A base station, comprising:
user data queues to store data transmitted from subscribers;
multiplexing logic coupled with the user data queues to receive feedback information from subscribers, to allocate, based on the feedback information, one or more clusters of subcarriers to each subscriber, and to time division multiplex data from the user data queues into cluster data queues corresponding to those of the clusters allocated to more than one subscriber; and the cluster data queues coupled with the multiplexing logic to receive data from the multiplexing logic and store the data for transmission on corresponding clusters of subcarriers.
CA2484373A 2001-01-19 2002-01-18 Multi-carrier communication with time division multiplexing and carrier-selective loading Expired - Fee Related CA2484373C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US26282801P 2001-01-19 2001-01-19
US60/262,828 2001-01-19
US10/051,348 US7164669B2 (en) 2001-01-19 2002-01-17 Multi-carrier communication with time division multiplexing and carrier-selective loading
US10/051,348 2002-01-17
PCT/US2002/001951 WO2002058300A1 (en) 2001-01-19 2002-01-18 Multi-carrier communication with time division multiplexing and carrier-selective loading

Publications (2)

Publication Number Publication Date
CA2484373A1 true CA2484373A1 (en) 2002-07-25
CA2484373C CA2484373C (en) 2012-10-16

Family

ID=26729326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2484373A Expired - Fee Related CA2484373C (en) 2001-01-19 2002-01-18 Multi-carrier communication with time division multiplexing and carrier-selective loading

Country Status (8)

Country Link
US (2) US7164669B2 (en)
EP (1) EP1413077A4 (en)
JP (1) JP4043948B2 (en)
KR (2) KR100896140B1 (en)
CN (2) CN100583705C (en)
CA (1) CA2484373C (en)
HK (1) HK1064822A1 (en)
WO (1) WO2002058300A1 (en)

Families Citing this family (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618367B1 (en) * 1999-12-16 2003-09-09 Agere Systems Inc. Transmission frame structure for a satellite digital audio radio system
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
US8605686B2 (en) * 2001-02-12 2013-12-10 Qualcomm Incorporated Method and apparatus for power control in a wireless communication system
US7257098B2 (en) * 2001-07-10 2007-08-14 Hitachi Kokusai Electric Inc. Wireless communications equipment
KR100703295B1 (en) * 2001-08-18 2007-04-03 삼성전자주식회사 Method and apparatus for transporting and receiving data using antenna array in mobile system
US8116260B1 (en) * 2001-08-22 2012-02-14 At&T Intellectual Property Ii, L.P. Simulcasting MIMO communication system
US7272118B1 (en) * 2002-02-06 2007-09-18 Sprint Spectrum L.P. Method and system for selecting vocoder rates and transmit powers for air interface communications
US7197084B2 (en) * 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
US8179864B2 (en) * 2002-08-06 2012-05-15 Rockstar Bidco Lp Method of controlling a communications link
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US8570988B2 (en) * 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8134976B2 (en) * 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8169944B2 (en) * 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
KR100542090B1 (en) 2002-12-16 2006-01-11 한국전자통신연구원 Method for controlling error, designing medium access control frame and registering terminal in wireless communication system and recording medium
JP4256158B2 (en) * 2002-12-26 2009-04-22 パナソニック株式会社 Wireless communication apparatus and wireless communication method
US6996763B2 (en) * 2003-01-10 2006-02-07 Qualcomm Incorporated Operation of a forward link acknowledgement channel for the reverse link data
US8150407B2 (en) * 2003-02-18 2012-04-03 Qualcomm Incorporated System and method for scheduling transmissions in a wireless communication system
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
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
US8081598B2 (en) * 2003-02-18 2011-12-20 Qualcomm Incorporated Outer-loop power control for wireless communication systems
US8391249B2 (en) * 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US7286846B2 (en) * 2003-02-18 2007-10-23 Qualcomm, Incorporated Systems and methods for performing outer loop power control in wireless communication systems
US8023950B2 (en) 2003-02-18 2011-09-20 Qualcomm Incorporated Systems and methods for using selectable frame durations in a wireless communication system
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
US8705588B2 (en) 2003-03-06 2014-04-22 Qualcomm Incorporated Systems and methods for using code space in spread-spectrum communications
JP2004297481A (en) * 2003-03-27 2004-10-21 Kyocera Corp Radio communication system, radio base station and radio communication terminal
US7342906B1 (en) * 2003-04-04 2008-03-11 Airespace, Inc. Distributed wireless network security system
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
US8477592B2 (en) * 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
KR100807466B1 (en) * 2003-06-18 2008-02-25 니폰덴신뎅와 가부시키가이샤 Radio packet communication method
WO2005013525A1 (en) * 2003-07-31 2005-02-10 Matsushita Electric Industrial Co., Ltd. Radio transmitter apparatus and modulation scheme selecting method
US8489949B2 (en) * 2003-08-05 2013-07-16 Qualcomm Incorporated Combining grant, acknowledgement, and rate control commands
BRPI0413356B1 (en) 2003-08-06 2020-12-01 Optis Wireless Technology, Llc wireless device and communication method, base station and communication method implemented by a base station
JP4335619B2 (en) * 2003-09-04 2009-09-30 株式会社エヌ・ティ・ティ・ドコモ Packet priority control apparatus and method
KR100566210B1 (en) 2003-09-22 2006-03-29 삼성전자주식회사 Apparatus and method for allocating channel in a wireless communication system
KR100950668B1 (en) * 2003-09-30 2010-04-02 삼성전자주식회사 Apparatus and method for transmitting/receiving uplink pilot signal in a communication system using an orthogonal frequency division multiple access scheme
US7616698B2 (en) 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
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
EP1545082A3 (en) * 2003-12-17 2005-08-03 Kabushiki Kaisha Toshiba Signal decoding methods and apparatus
US7649833B2 (en) 2003-12-29 2010-01-19 Intel Corporation Multichannel orthogonal frequency division multiplexed receivers with antenna selection and maximum-ratio combining and associated methods
US7885178B2 (en) * 2003-12-29 2011-02-08 Intel Corporation Quasi-parallel multichannel receivers for wideband orthogonal frequency division multiplexed communications and associated methods
EP1712019B1 (en) 2004-01-29 2014-01-15 Neocific, Inc. Methods and apparatus for overlaying multi-carrier and direct sequence spread spectrum signals in a broadband wireless communication system
WO2005109705A1 (en) 2004-05-01 2005-11-17 Neocific, Inc. Methods and apparatus for communication with time-division duplexing
CN1930840B (en) * 2004-03-05 2010-05-05 三星电子株式会社 Method and apparatus for allocating subcarriers in a broadband wireless communication system
JP2007528164A (en) * 2004-03-05 2007-10-04 ネクストネット ワイアレス インコーポレイテッド Adaptive modulation system and method
US7978734B2 (en) * 2004-03-18 2011-07-12 Xocyst Transfer Ag L.L.C. Multichannel MAC data stream for wireless communication
US7706350B2 (en) * 2004-03-19 2010-04-27 Qualcomm Incorporated Methods and apparatus for flexible spectrum allocation in communication systems
WO2005096532A1 (en) * 2004-03-31 2005-10-13 Nortel Networks Limited Adaptive scheduling of voice traffic in a multi-carrier communication environment
GB0408423D0 (en) * 2004-04-15 2004-05-19 Nokia Corp Transmission of services in a wireless communications network
EP1736011A4 (en) * 2004-04-15 2011-02-09 Qualcomm Inc Multi-carrier communications methods and apparatus
GB2415336B (en) * 2004-06-18 2006-11-08 Toshiba Res Europ Ltd Bit interleaver for a mimo system
CN102655446B (en) 2004-06-30 2016-12-14 亚马逊科技公司 Apparatus and method and communication means for control signal transmission
US9294218B2 (en) 2004-07-16 2016-03-22 Qualcomm Incorporated Rate prediction in fractional reuse systems
US8000221B2 (en) * 2004-07-20 2011-08-16 Qualcomm, Incorporated Adaptive pilot insertion for a MIMO-OFDM system
KR100601118B1 (en) 2004-12-17 2006-07-19 한국전자통신연구원 A Wireless Resource Allocation System and Method for Packet Data Service
KR100617835B1 (en) * 2005-01-05 2006-08-28 삼성전자주식회사 Apparatus and method for transmitting/receiving a channel quality information in a communication system
KR20060097450A (en) * 2005-03-09 2006-09-14 삼성전자주식회사 System and method for controlling resource allocation in a multicell communication system
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) * 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US8331216B2 (en) * 2005-08-09 2012-12-11 Qualcomm Incorporated Channel and interference estimation in single-carrier and multi-carrier frequency division multiple access systems
JP2007067567A (en) * 2005-08-29 2007-03-15 Mitsubishi Electric Corp Communication apparatus, transmitter and receiver
US9136974B2 (en) * 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
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
US20070072606A1 (en) * 2005-09-28 2007-03-29 Pieter Van Rooyen Method and system for mitigating interference from analog TV in a DVB-H system
US9521584B2 (en) * 2005-10-17 2016-12-13 Qualcomm Incorporated Method and apparatus for managing data flow through a mesh network
KR20070072795A (en) * 2006-01-02 2007-07-05 삼성전자주식회사 Method and system for scheduling in a communication system
EP1804452B1 (en) * 2006-01-03 2011-05-11 Alcatel Lucent Scheduling of control channels in multicarrier transmission systems
US8064835B2 (en) * 2006-01-11 2011-11-22 Quantenna Communications, Inc. Antenna assignment system and method
KR100834677B1 (en) * 2006-01-16 2008-06-02 삼성전자주식회사 Apparatus and method for allocating resource in a wireless communication system of frequency division multiple access
KR101062674B1 (en) 2006-02-18 2011-09-06 삼성전자주식회사 Apparatus and method for allocating resources and performing communication in a wireless communication system
CN101039505A (en) * 2006-03-15 2007-09-19 朗迅科技公司 Method for dispatching data transmission of multi-carrier wireless communication system
WO2007110960A1 (en) * 2006-03-29 2007-10-04 Fujitsu Limited Communication apparatus and terminal
US8091012B2 (en) * 2006-05-04 2012-01-03 Quantenna Communications Inc. System and method for decreasing decoder complexity
WO2007130578A2 (en) * 2006-05-04 2007-11-15 Quantenna Communications, Inc. Multiple antenna receiver system and method
US7974360B2 (en) * 2006-05-24 2011-07-05 Qualcomm Incorporated Multi input multi output (MIMO) orthogonal frequency division multiple access (OFDMA) communication system
JP4986702B2 (en) * 2006-06-02 2012-07-25 京セラ株式会社 Allocation method and base station apparatus using the same
EP2037608A1 (en) * 2006-06-05 2009-03-18 Sharp Kabushiki Kaisha Communication device and radio communication system
CN101094022B (en) * 2006-06-19 2012-12-19 联想(北京)有限公司 Transmitter, communication system, and communication method
EP2033316A4 (en) 2006-06-21 2010-08-11 Element Cxi Llc Fault tolerant integrated circuit architecture
US7873049B2 (en) * 2006-06-28 2011-01-18 Hitachi, Ltd. Multi-user MAC protocol for a local area network
JP5268237B2 (en) * 2006-07-28 2013-08-21 シャープ株式会社 Scheduling method, communication control device, and terminal device
EP1912374A1 (en) * 2006-10-10 2008-04-16 Nokia Siemens Networks Gmbh & Co. Kg Data transmission in a multiuser OFDM system with adaptive modulation
US8063839B2 (en) * 2006-10-17 2011-11-22 Quantenna Communications, Inc. Tunable antenna system
US7978773B2 (en) * 2006-12-29 2011-07-12 Agere Systems Inc. Multi-channel receiver with improved AGC
US8681749B2 (en) 2007-01-04 2014-03-25 Qualcomm Incorporated Control resource mapping for a wireless communication system
US8433357B2 (en) 2007-01-04 2013-04-30 Qualcomm Incorporated Method and apparatus for utilizing other sector interference (OSI) indication
US8457315B2 (en) * 2007-01-05 2013-06-04 Qualcomm Incorporated Pilot transmission in a wireless communication system
US8320407B2 (en) 2007-01-05 2012-11-27 Qualcomm Incorporated Mapping of subpackets to resources in a communication system
US8027301B2 (en) 2007-01-24 2011-09-27 The Board Of Trustees Of The Leland Stanford Junior University Cooperative OFDMA and distributed MIMO relaying over dense wireless networks
US7769357B2 (en) * 2007-04-25 2010-08-03 Agere Systems Inc. Multi-channel receiver with improved AGC
US7809343B2 (en) 2007-04-25 2010-10-05 Agere Systems Inc. Multi-channel receiver with improved AGC
JP4656095B2 (en) 2007-06-20 2011-03-23 日本電気株式会社 Base station control apparatus and base station control method
JP4900087B2 (en) 2007-07-02 2012-03-21 日本電気株式会社 User selection method for multi-user MIMO communication
KR20090022554A (en) * 2007-08-31 2009-03-04 삼성전자주식회사 Apparatus and method for interference cancellation in wireless communcation terminal
WO2009054938A1 (en) * 2007-10-19 2009-04-30 Quantenna Communications, Inc. Mitigating interference in a coded communication system
US8761150B2 (en) 2007-12-05 2014-06-24 Qualcomm Incorporated Method and apparatus for data-centric multiplexing and asynchronous command interface to the encoder and multiplexer modules
JP4734314B2 (en) * 2007-12-10 2011-07-27 パナソニック株式会社 Wireless communication apparatus and wireless communication method
US8140107B1 (en) 2008-01-04 2012-03-20 Sprint Spectrum L.P. Method and system for selective power control of wireless coverage areas
US8228853B2 (en) * 2008-02-01 2012-07-24 Qualcomm Incorporated Serving base station selection in a wireless communication network
US8553712B2 (en) 2008-02-01 2013-10-08 Qualcomm Incorporated Carrier management in a wireless communication device assigned a set of two or more carriers by a wireless communication network
EP2277085A1 (en) * 2008-03-31 2011-01-26 QUALCOMM Incorporated Method and apparatus for synchronizing an encoder with a multiplexer
US8830982B2 (en) 2008-05-05 2014-09-09 Industrial Technology Research Institute System and method for multicarrier uplink control
JP4475602B2 (en) * 2008-07-24 2010-06-09 パナソニック株式会社 Repeater and relay method
JP4734389B2 (en) * 2008-09-11 2011-07-27 パナソニック株式会社 Wireless communication apparatus and wireless communication method
US8654692B2 (en) * 2008-10-30 2014-02-18 Panasonic Corporation Wireless communication apparatus and wireless communication method
JP5299090B2 (en) * 2009-05-29 2013-09-25 パナソニック株式会社 Network automatic search and display device
US20100310002A1 (en) * 2009-06-05 2010-12-09 Broadcom Corporation Adaptive and selective frame formats within multiple user, multiple access, and/or mimo wireless communications
US8526351B2 (en) * 2009-06-05 2013-09-03 Broadcom Corporation Channel characterization and training within multiple user, multiple access, and/or MIMO wireless communications
US8638682B2 (en) 2009-10-01 2014-01-28 Qualcomm Incorporated Method and apparatus for conducting measurements when multiple carriers are supported
EP2337245B1 (en) * 2009-12-17 2013-04-10 Alcatel Lucent Optical OFDM transmission having a variable transmission rate
CN103190101A (en) * 2010-11-02 2013-07-03 松下电器产业株式会社 Communication system
US8817802B2 (en) 2011-12-21 2014-08-26 Comtech Ef Data Corp. Method and system for providing hitless switching while maintaining a power equivalent bandwidth (PEB) ratio using multiple carriers
JP5900884B2 (en) * 2012-02-17 2016-04-06 シャープ株式会社 Control station apparatus and radio communication system
US9998937B2 (en) 2013-05-13 2018-06-12 Nec Corporation Method and device for estimating communication load, radio station and upper-level apparatus in radio communication system
CN104640177B (en) * 2015-03-12 2018-03-30 重庆邮电大学 Cell selecting method based on efficiency in multilayer heterogeneous network
CN112970312A (en) * 2019-02-11 2021-06-15 Oppo广东移动通信有限公司 Resource indication method, terminal equipment and network equipment

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105157B2 (en) 1987-09-10 1995-11-13 日本電気株式会社 Redundant memory cell use decision circuit
US5515378A (en) * 1991-12-12 1996-05-07 Arraycomm, Inc. Spatial division multiple access wireless communication systems
US5555268A (en) * 1994-01-24 1996-09-10 Fattouche; Michel Multicode direct sequence spread spectrum
JP2959288B2 (en) 1992-07-10 1999-10-06 松下電器産業株式会社 Mobile communication method and device
NZ255617A (en) * 1992-09-04 1996-11-26 Ericsson Telefon Ab L M Tdma digital radio: measuring path loss and setting transmission power accordingly
US5426978A (en) * 1992-10-09 1995-06-27 Mitsubishi Denki Kabushiki Kaisha Non-destructive axle flaw detecting apparatus
FR2701178A1 (en) * 1993-02-03 1994-08-05 Philips Electronique Lab Spread spectrum communication system with multiple users.
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
DE4325190A1 (en) * 1993-07-27 1995-02-02 Siemens Ag Radio system with frequency optimization
CA2158270C (en) * 1994-02-17 1999-09-21 Michael D. Kotzin Method and apparatus for reducing self interference in a communication system
EP0725509A1 (en) * 1995-01-31 1996-08-07 ALCATEL BELL Naamloze Vennootschap Frequency division multiple access (FDMA) dedicated transmission system, transmitter and receiver used in such a transmission system
FI100569B (en) * 1995-05-08 1997-12-31 Nokia Telecommunications Oy Method and apparatus for variable rate coding and detection in a multipurpose mobile communication system
US5726978A (en) * 1995-06-22 1998-03-10 Telefonaktiebolaget L M Ericsson Publ. Adaptive channel allocation in a frequency division multiplexed system
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
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
US5886988A (en) 1996-10-23 1999-03-23 Arraycomm, Inc. Channel assignment and call admission control for spatial division multiple access communication systems
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
DE19700303B4 (en) * 1997-01-08 2005-11-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. Radio transmission method for digital multimedia signals between subscriber stations in a local area network
US5933421A (en) * 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US6175550B1 (en) 1997-04-01 2001-01-16 Lucent Technologies, Inc. Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof
DE19713666C2 (en) * 1997-04-02 1999-01-14 Siemens Ag Method and device for channel allocation
US5902475A (en) * 1997-04-08 1999-05-11 Interventional Technologies, Inc. Method for manufacturing a stent
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
US5937006A (en) * 1997-05-28 1999-08-10 The Aerospace Corporation Frequency translating device transmission response method
US6064692A (en) * 1997-06-20 2000-05-16 Amati Communications Corporation Protocol for transceiver initialization
US6026123A (en) * 1997-08-02 2000-02-15 Williams; Thomas H. Digital transmission system with high immunity to dynamic linear distortion
US6108374A (en) * 1997-08-25 2000-08-22 Lucent Technologies, Inc. System and method for measuring channel quality information
US6131016A (en) * 1997-08-27 2000-10-10 At&T Corp Method and apparatus for enhancing communication reception at a wireless communication terminal
US6810030B1 (en) 1997-10-17 2004-10-26 Lucent Technology Dynamic and smart spreading for wideband CDMA
IT1295808B1 (en) 1997-11-04 1999-05-27 Cselt Centro Studi Lab Telecom PROCEDURE FOR THE ASSIGNMENT OF CHANNELS IN A COMMUNICATION SYSTEM BETWEEN MOBILE VEHICLES WITH MULTIPLE ACCESS TO DIVISION OF
US6144696A (en) * 1997-12-31 2000-11-07 At&T Corp. Spread spectrum bit allocation algorithm
EP0929202A1 (en) 1998-01-06 1999-07-14 Lucent Technologies Inc. Uplink channel allocation for a mobile cellular network
JP2962299B2 (en) 1998-01-09 1999-10-12 日本電信電話株式会社 Multi-carrier signal transmission device
DE19800953C1 (en) 1998-01-13 1999-07-29 Siemens Ag Resource allocation in radio interface of radio communications system
EP0938208A1 (en) * 1998-02-22 1999-08-25 Sony International (Europe) GmbH Multicarrier transmission, compatible with the existing GSM system
JP3629136B2 (en) * 1998-02-27 2005-03-16 富士通株式会社 Multi-mode communication device
US6366195B1 (en) * 1998-03-13 2002-04-02 Wireless Online, Inc. Power control in two-way paging systems
JP2878265B1 (en) * 1998-03-16 1999-04-05 三菱電機株式会社 Code assignment apparatus and method
US5973642A (en) * 1998-04-01 1999-10-26 At&T Corp. Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference
FR2777407B1 (en) 1998-04-10 2000-06-30 Wavecom Sa CELLULAR DOWNLINK CELLULAR RADIOTELEPHONY SIGNAL, METHOD, SYSTEM, MOBILE, AND BASE STATION THEREFOR
US6067290A (en) * 1999-07-30 2000-05-23 Gigabit Wireless, Inc. Spatial multiplexing in a cellular network
US6377632B1 (en) * 2000-01-24 2002-04-23 Iospan Wireless, Inc. Wireless communication system and method using stochastic space-time/frequency division multiplexing
US6952454B1 (en) * 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
US6493331B1 (en) * 2000-03-30 2002-12-10 Qualcomm Incorporated Method and apparatus for controlling transmissions of a communications systems
US7304951B2 (en) * 2000-11-21 2007-12-04 North Carolina State University Methods and systems for rate-based flow control between a sender and a receiver
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US20030067890A1 (en) * 2001-10-10 2003-04-10 Sandesh Goel System and method for providing automatic re-transmission of wirelessly transmitted information
US7295626B2 (en) * 2002-03-08 2007-11-13 Alvarion Ltd. Orthogonal division multiple access technique incorporating single carrier and OFDM signals

Also Published As

Publication number Publication date
JP4043948B2 (en) 2008-02-06
CN100583705C (en) 2010-01-20
EP1413077A1 (en) 2004-04-28
CA2484373C (en) 2012-10-16
US20070064659A1 (en) 2007-03-22
KR100896140B1 (en) 2009-05-11
CN1498474A (en) 2004-05-19
KR20080063860A (en) 2008-07-07
WO2002058300A1 (en) 2002-07-25
CN102164108B (en) 2014-03-12
US7164669B2 (en) 2007-01-16
HK1064822A1 (en) 2005-02-04
CN102164108A (en) 2011-08-24
KR20030079953A (en) 2003-10-10
JP2004529527A (en) 2004-09-24
US20020163879A1 (en) 2002-11-07
US7414994B2 (en) 2008-08-19
KR100851411B1 (en) 2008-08-08
EP1413077A4 (en) 2007-01-24

Similar Documents

Publication Publication Date Title
CA2484373A1 (en) Multi-carrier communication with time division multiplexing and carrier-selective loading
US7245920B2 (en) Apparatus and method for use in allocating a channel resource in wireless multiple access communications systems
CN101822111B (en) User device, base station, and upstream link control channel configuration method
CN100382539C (en) Method for subcarrier allocation and for modulation scheme selection in a wireless multicarrier transmission system
US8249607B2 (en) Scheduling in wireless communication systems
CN1085013C (en) System for transmitting packet data in digital ceilular time division multiple access (TDMA) air interface
EP2547160B1 (en) Channel assigning in wireless communication systems
AU2001293069B2 (en) System for uplink scheduling of packet based data traffic in wireless system
JP3788902B2 (en) Radio resource allocation method and communication apparatus
KR100816598B1 (en) Signaling method, system, base station and mobile station
CN1171475C (en) Method of allocating vocoder resources in mobile communication system
US20060142051A1 (en) Method and apparatus to optimize the utilization of the carriers in a flexible multi-carrier system
CA2399525A1 (en) Method, apparatus and data structure enabling multiple channel data stream transmission
CA2295438A1 (en) Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (cdma) radio link
KR20020025772A (en) Communication system and communication channel allocation method
EP2068578B1 (en) Channel assignment notifying methods
CN103701579A (en) Uplink radio resource allocation in the presence of power limited users
CN101199186A (en) Multicarrier CDMA system
KR20040003052A (en) Multiple threshold scheduler for scheduling transmission of data packets to mobile terminals based on a relative throughput spread
KR20040071304A (en) Data transmission method for a multi-user, multipoint-to-multipoint digital data transmission system
KR20060038786A (en) System and method for between physical layer and medium access control of resource allocation in a radio connection protocol
KR100582902B1 (en) A power allocation apparatus and a power allocation method in a mobile communication
KR20070068930A (en) Method and apparatus for scheduling in a communication system using plurality of channels
CN101601248A (en) The channel that in the multi-user environment of wireless packet data, distributes real-time service transmission
CN1867107B (en) Method for improving TD-SCDMA digital trunking system channel availability ratio

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180118