公开(公告)号：EP2038814A4

公开(公告)日：2014-03-12

申请号：EP06758049

申请日：2006-07-07

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN

IPC: G06K9/20 ,  H04L25/03 ,  H04L25/06 ,  H04L27/38

CPC classification number: H04L27/38 ,  H04L25/03191 ,  H04L25/067 ,  H04L2025/0342 ,  H04L2025/03426

公开(公告)号：EP1946578A4

公开(公告)日：2011-11-16

申请号：EP05803677

申请日：2005-11-11

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  FURUSKAER ANDERS ,  DE BRUIN PETER

IPC: H04W76/02 ,  H04W92/18

CPC classification number: H04W76/023 ,  H04W76/06 ,  H04W92/18

Abstract: Peer-to-peer communication between user terminals in a licensed spectrum is enabled by a method comprising the following steps: —communicating directly, peer-to-peer, between the first and the second mobile terminal, and —disconnecting the peer-to-peer communication in dependence of control signals received or not received from the base station. Thus, according to the invention, the network is enabled to control the peer-to-peer communication between two user terminals.

公开(公告)号：EP2018748A4

公开(公告)日：2013-11-27

申请号：EP06747790

申请日：2006-05-19

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  JOHANSSON NIKLAS ,  NYSTROEM JOHAN ,  SKILLERMARK PER ,  SUNELL KAI-ERIK

IPC: H04L27/26 ,  H04B1/26 ,  H04B1/713 ,  H04L5/00 ,  H04L12/28 ,  H04W48/08

CPC classification number: H04L27/2602 ,  H04L5/0012 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04W48/08

公开(公告)号：EP1943762A4

公开(公告)日：2012-05-16

申请号：EP05801834

申请日：2005-11-04

Applicant: ERICSSON TELEFON AB L M

Inventor： WAN LEI ,  AXNAES JOHAN

IPC: H04L1/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1819 ,  H04L2001/0098 ,  Y02D50/10

Abstract: When transmitting data from a transmission unit to a reception unit over a channel in a wireless communication system, it has been observed that there are inherent losses in throughput, especially for a channel experiencing high channel quality variations over its frequency range. To improve the throughput over such a channel, it is proposed to: estimate the quality of each subchannel of a channel, classify the subchannels into a number of quality groups based on the estimated quality, and select a code rate per quality group. This selected code rate per quality group is then used when a data word to be transmitted is coded. Simulations have shown that by grouping the subchannels into a limited number of groups, for example one to four groups depending on the channel quality variation, a high throughput could be achieved with a minimum of signaling cost in the form of extra overhead.

公开(公告)号：WO2005025120A8

公开(公告)日：2005-05-19

申请号：PCT/SE2004001190

申请日：2004-08-11

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  CRAIG STEPHEN ,  CHEN DAYONG ,  ERIKSSON STEFAN

IPC: H04B1/02 ,  H04B1/66 ,  H04B17/00 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04L1/0003 ,  H04L1/203

Abstract: The invention discloses a mobile-unit-assisted modulation scheme management, in which a mobile unit (100) performs signal quality measurements on a communications link (410), over which data modulated with a first modulation scheme is communicated. The mobile unit (100) determines a first link quality measure for this first modulation. Furthermore, the mobile unit (100) estimates second quality measure(s) for currently non-employed modulation scheme(s) based on this first quality measure. Selection information is then generated based on this first quality measure and the second quality estimate(s). This quality measure estimation is performed based on the capabilities and the particular modulation scheme versions of the mobile unit (100).

Abstract translation: 本发明公开了一种移动单元辅助的调制方案管理，其中移动单元（100）在通信链路（410）上执行信号质量测量，通过该通信链路传送用第一调制方案调制的数据。 移动单元（100）为该第一调制确定第一链路质量度量。 此外，移动单元（100）基于该第一质量度量来估计当前未使用的调制方案的第二质量度量。 然后基于该第一质量度量和第二质量估计生成选择信息。 该质量测量估计是基于移动单元（100）的能力和特定调制方案版本来执行的。

公开(公告)号：DE602005025033D1

公开(公告)日：2011-01-05

申请号：DE602005025033

申请日：2005-05-11

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  TYNDERFELDT TOBIAS

IPC: H04L1/08 ,  H04L1/04

公开(公告)号：SE0102077D0

公开(公告)日：2001-06-12

申请号：SE0102077

申请日：2001-06-12

Applicant: ERICSSON TELEFON AB L M

Inventor： SAHLIN HENRIK ,  AXNAES JOHAN ,  HEDBERG ANDREAS

IPC: H04B17/40 ,  H03K9/00 ,  H04B1/16 ,  H04L20060101 ,  H04L27/00 ,  H04L

Abstract: The present invention relates to a blind detection of a received signal having at least one property, which initially is unknown to the receiver, however, limited to a finite set of alternatives ({p 1 , p 2 , . . . , p m }). According to the invention, the unknown property is automatically identified as follows. A respective quality measure (q 1 , q 2 , . . . , q m ) is derived from the incoming signal (r(n)), which each represents a particular property in the finite set of alternatives ({p 1 , p 2 , . . . , p m }). The quality measures (q 1 , q 2 , . . . , q m ) are obtained according to a procedure that involves a computationally efficient rejection of any unwanted signal components in the incoming signal (r(n)). Then, the quality measures (q 1 , q 2 , . . . , q m ) are compared with each other in order to find a quality measure, which best fulfills a blind selection criterion. The quality measure (q i ) thus obtained corresponds to the initially unknown property (p i ). For instance, based on this information, the incoming signal (r(n)) may then be further processed in a processing unit ( 122 ), which operates according to a processing principle (C di ) that is adapted to this property (p i ).

公开(公告)号：DE602004019293D1

公开(公告)日：2009-03-19

申请号：DE602004019293

申请日：2004-08-11

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  CRAIG STEPHEN ,  CHEN DAYONG ,  ERIKSSON STEFAN

IPC: H04L1/00 ,  H04B7/005 ,  H04B17/00 ,  H04L1/20 ,  H04L27/00

Abstract: The invention involves selection of modulation scheme for a mobile unit (100) having access to a link quality enhancing algorithm (130) operable only on data modulated using a subset of the available modulation schemes. The mobile unit (100) performs signal quality measurements on a communications link (410), over which data modulated with a first modulation scheme is communicated. A link quality measure is then determined for this first modulation. A quality enhancement due to operation of the algorithm (130) is also determined. This quality measure and the quality enhancement are used for generating decision information, which is reported to the network (200). There the information is used for estimating link quality measure(s) of currently non-employed modulation(s) for the mobile unit (100). The selection of a modulation scheme for the communications link is then performed based on the decision information and the estimated quality measure(s).

公开(公告)号：AT422121T

公开(公告)日：2009-02-15

申请号：AT04775307

申请日：2004-08-11

Applicant: ERICSSON TELEFON AB L M

Inventor： AXNAES JOHAN ,  CRAIG STEPHEN ,  CHEN DAYONG ,  ERIKSSON STEFAN

IPC: H04L1/00 ,  H04B7/005 ,  H04B17/00 ,  H04L1/20 ,  H04L27/00

Abstract: The invention involves selection of modulation scheme for a mobile unit (100) having access to a link quality enhancing algorithm (130) operable only on data modulated using a subset of the available modulation schemes. The mobile unit (100) performs signal quality measurements on a communications link (410), over which data modulated with a first modulation scheme is communicated. A link quality measure is then determined for this first modulation. A quality enhancement due to operation of the algorithm (130) is also determined. This quality measure and the quality enhancement are used for generating decision information, which is reported to the network (200). There the information is used for estimating link quality measure(s) of currently non-employed modulation(s) for the mobile unit (100). The selection of a modulation scheme for the communications link is then performed based on the decision information and the estimated quality measure(s).

公开(公告)号：AT381186T

公开(公告)日：2007-12-15

申请号：AT02724864

申请日：2002-04-24

Applicant: ERICSSON TELEFON AB L M

Inventor： SAHLIN HENRIK ,  AXNAES JOHAN ,  HEDBERG ANDREAS

IPC: H04B17/40 ,  H04L27/00 ,  H03K9/00 ,  H04B1/16 ,  H04L20060101

Abstract: The present invention relates to a blind detection of a received signal having at least one property, which initially is unknown to the receiver, however, limited to a finite set of alternatives ({p 1 , p 2 , . . . , p m }). According to the invention, the unknown property is automatically identified as follows. A respective quality measure (q 1 , q 2 , . . . , q m ) is derived from the incoming signal (r(n)), which each represents a particular property in the finite set of alternatives ({p 1 , p 2 , . . . , p m }). The quality measures (q 1 , q 2 , . . . , q m ) are obtained according to a procedure that involves a computationally efficient rejection of any unwanted signal components in the incoming signal (r(n)). Then, the quality measures (q 1 , q 2 , . . . , q m ) are compared with each other in order to find a quality measure, which best fulfills a blind selection criterion. The quality measure (q i ) thus obtained corresponds to the initially unknown property (p i ). For instance, based on this information, the incoming signal (r(n)) may then be further processed in a processing unit ( 122 ), which operates according to a processing principle (C di ) that is adapted to this property (p i ).