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公开(公告)号:WO2004084452A3
公开(公告)日:2008-01-17
申请号:PCT/EP2004002651
申请日:2004-03-15
Applicant: ERICSSON TELEFON AB L M , MALM PETER
Inventor: MALM PETER
CPC classification number: H04W52/24 , H04B17/21 , H04B17/336 , H04L1/0001 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04W52/16
Abstract: A method and apparatus for providing a link quality report in a wireless communication system supporting link adaptation. An input signal carrying data blocks in one or several transmission intervals of a reporting interval is received by a receiver (30) of the apparatus. A quality measurement unit (31) provides a link quality measure of the current reporting interval. A correction unit (32) corrects the link quality measure by determining a SIR loss of the link, which is induced by unmatched transmission parameter settings of a physical layer. Then, a link quality report for the current reporting interval is based on the corrected link quality measure and transmitted by the transmitter (34) to the transmitting unit, which will adapt the setting of physical layer parameters accordingly.
Abstract translation: 一种用于在支持链路适配的无线通信系统中提供链路质量报告的方法和装置。 在装置的接收机(30)接收以报告间隔的一个或多个发送间隔中承载数据块的输入信号。 质量测量单元(31)提供当前报告间隔的链路质量测量。 校正单元(32)通过确定由物理层的不匹配的传输参数设置引起的链路的SIR丢失来校正链路质量测量。 然后,当前报告间隔的链路质量报告基于校正的链路质量测量,并由发射机(34)传送到发射单元,这将相应地适应物理层参数的设置。
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公开(公告)号:WO0237771A3
公开(公告)日:2002-09-19
申请号:PCT/EP0112533
申请日:2001-10-30
Applicant: ERICSSON TELEFON AB L M , LINDOFF BENGT , MALM PETER
Inventor: LINDOFF BENGT , MALM PETER
Abstract: Methods and systems using short link radios (SLRs) with mobile terminals are disclosed. A mobile terminal having a SLR connects to other mobile terminals having SLRs over a SLR link to increase the troughput, the QoS, or both of the system. The mobile terminals establish a SLR link between a first mobile terminal and a second mobile terminal. Both mobile terminals receive data transmitted from a base station intended for the first mobile terminal. The second mobile terminal then retransmits the data received by the second mobile terminal to the first mobile terminal via the SLR link.
Abstract translation: 公开了使用具有移动终端的短链路无线电(SLR)的方法和系统。 具有SLR的移动终端通过SLR链路连接到具有SLR的其他移动终端,以增加系统的吞吐量,QoS或两者。 移动终端在第一移动终端和第二移动终端之间建立SLR链路。 两个移动终端都接收从预定给第一移动终端的基站发送的数据。 然后,第二移动终端通过SLR链路将第二移动终端接收的数据重传给第一移动终端。
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公开(公告)号:DE60323047D1
公开(公告)日:2008-10-02
申请号:DE60323047
申请日:2003-03-21
Applicant: ERICSSON TELEFON AB L M
Inventor: MALM PETER
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公开(公告)号:DE60211847T2
公开(公告)日:2007-06-06
申请号:DE60211847
申请日:2002-03-07
Applicant: ERICSSON TELEFON AB L M
Inventor: WILHELMSSON LEIF , MALM PETER
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公开(公告)号:AU4293001A
公开(公告)日:2001-10-08
申请号:AU4293001
申请日:2001-03-15
Applicant: ERICSSON TELEFON AB L M
Inventor: LINDOFF BENGT , MALM PETER
IPC: H04B7/26
Abstract: In accordance with exemplary embodiments of the invention, throughput and capacity in a TDMA system are increased using several different channels all operating simultaneously on the same carrier frequency. In a first embodiment, a base station in a cell in the system simultaneously transmits a different information sequence from each antenna of a transmitter, on the same carrier frequency. Mobile stations in the cell each receive the signals from the base station antennas as a composite signal, and then use known synchronization information to extract a desired information sequence from the composite signal. In a second embodiment, the different information sequences are all intended for the same mobile station, which uses the synchronization information to extract each sequence from the composite signal. In a third embodiment of the invention, the base station simultaneously transmits identical information sequences to a mobile station via different antennas. The mobile station uses the resulting space diversity effect to obtain diversity gain that enables an increase in the number of channels per area-unit, and thus an increase in traffic and spectrum efficiency. The system can also dynamically employ these to effectively respond to changing demands for communications services within the system.
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公开(公告)号:DE60139878D1
公开(公告)日:2009-10-22
申请号:DE60139878
申请日:2001-07-31
Applicant: ERICSSON TELEFON AB L M
Inventor: SCHIEDER ANDREAS , KALDEN ROGER , MALM PETER
IPC: H04L12/64
Abstract: A method and device for transmitting signals of a first category and signals of a second category over a link, said link providing a predetermined signal transmission rate, where said signals of the first category have a discontinuous characteristic comprising periods of activity and periods of inactivity, where a first channel is provided for carrying signals of the first category and a second channel is provided for carrying signals of the second category, and where the two channels each have respective proportions of the predetermined signal transmission rate of the link during periods of activity of the signals of the first category, and the proportion of the signal transmission rate assigned to the second channel during periods of inactivity of the signals of the first category is increased with respect to the period of activity.
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公开(公告)号:DE602004004546T2
公开(公告)日:2007-10-31
申请号:DE602004004546
申请日:2004-08-20
Applicant: ERICSSON TELEFON AB L M
Inventor: HUANG WENSHENG , TOY RAYMOND , MALM PETER
Abstract: In a packet-based data transmission including incremental redundancy (IR) protocols, the memory consumption of the IR protocol is reduced by compressing and storing failed data units in their punctured format. The failed data units are compressed using low complexity compression/decompression algorithms. The compression algorithm includes two parts: calculating and storing a scale factor for each transmission burst that estimates the soft values in the burst, and storing each soft values' sign in local memory instead of the complete soft value. If the currently received data unit is a retransmission, its compressed versions in the punctured format stored in the IR memory are decompressed, de-punctured and combined with the currently received data unit. The combined data unit is then decoded. The decompression restores an estimated soft-value by multiplying the sign value stored in the IR memory with its corresponding scale factor obtained from a mapping table.
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公开(公告)号:ZA200109967B
公开(公告)日:2002-06-27
申请号:ZA200109967
申请日:2001-12-04
Applicant: ERICSSON TELEFON AB L M
Inventor: MALM PETER
Abstract: In a packet based data transmission including automatic repeat request (ARQ) protocols, the memory consumption of the ARQ protocol is reduced by compression/decompression of failed data block prior to combination with the retransmitted data blocks using low complexity compression/decompression algorithms. The compression algorithm includes of two parts: calculating and storing a scale factor that estimates the soft values in the data block, and storing the each soft values' sign in local memory instead of the complete soft value. Since one bit is sufficient to store the sign of each soft value, the memory consumption of a data block containing N soft values is N bits. Note, the scale factor increases the memory consumption, in bits, with the word length of the scale factor. However, the relative memory increase becomes smaller the larger the data block.
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公开(公告)号:AT406010T
公开(公告)日:2008-09-15
申请号:AT03006418
申请日:2003-03-21
Applicant: ERICSSON TELEFON AB L M
Inventor: MALM PETER
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公开(公告)号:DE60317511D1
公开(公告)日:2007-12-27
申请号:DE60317511
申请日:2003-06-27
Applicant: ERICSSON TELEFON AB L M
Inventor: MALM PETER
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