公开(公告)号：EP1917727A1

公开(公告)日：2008-05-07

申请号：EP06792531.3

申请日：2006-07-20

申请人： IPWireless, Inc.

发明人： ANDERSON, Nicholas William

IPC分类号： H04B7/005

CPC分类号： H04L5/006 ,  H04B17/24 ,  H04L5/0073 ,  H04L5/14 ,  H04W16/14 ,  H04W24/10 ,  H04W48/16 ,  H04W52/283 ,  H04W52/34 ,  H04W72/082 ,  H04W72/1231 ,  H04W72/14

摘要： Embodiments of the present invention exploit the reciprocity of radio channels in TDD, and longer-term correlation between average uplink and downlink path losses in FDD wireless communication systems to enable distributed schedulers in an enhanced uplink system to allocate uplink transmission resources while preemptively managing intercell interference levels. Each cell's base station transmits a downlink reference signal at a known transmission power level. A mobile station monitors the received signal strength of the downlink reference signals from multiple base stations. The transmitted and received signal strength levels can be used by the mobile station to estimate the amount of intercell interference that the mobile station's uplink transmissions cause, and the mobile station's uplink transmission parameters are adjusted accordingly. In further embodiments, the received reference signal power levels, or values derived therefrom, are transmitted by the mobile station to its serving base station, where a scheduling algorithm uses the information to adjust one or more transmission parameters relating to a grant of uplink transmission resources to the UE, thereby controlling the intercell interference generated by the mobile station's uplink transmissions.

公开(公告)号：EP1665664B1

公开(公告)日：2008-01-23

申请号：EP04764250.9

申请日：2004-08-18

申请人： IPWireless, Inc.

发明人： BEALE, Martin, Warwick

IPC分类号： H04L12/56 ,  H04Q7/38

CPC分类号： H04W24/06 ,  H04W72/0413 ,  H04W92/10

摘要： A method, base station (122), remote station (118) and system (100), for scheduling HSDPA 3GPP TDD communication. The base station allocates resource to remote stations in order to receive channel quality information back from the remote stations. The resource allocated to a remote station contains no higher layer data. A scheduler in the base station uses the channel quality information in order to schedule remote stations and/or to decide on the channel coding and/or modulation to be applied to the data transmission. A mechanism is provided to ensure that data transmitted on HS-DSCH is not transmitted to higher layers. This may provide a convenient method of obtaining channel quality information allowing for improved scheduling and thus improved performance of the communication system.

公开(公告)号：EP1488553B1

公开(公告)日：2007-10-24

申请号：EP02804284.4

申请日：2002-11-22

申请人： IPWireless, Inc.

发明人： ANDERSON, Nicholas

IPC分类号： H04B17/00

CPC分类号： H04B17/336 ,  H04B17/21

摘要： A method, arrangement (512) and communication receiver (500) for SNIR estimation of a received signal, by: deriving (512A) an estimation of SNIR of the received signal in accordance with the relation, where E represents mean value and r(t) represents the level of the received signal; and correcting (512B, 512C) the estimation to produce a corrected estimation Z based on the relation Z= DOLLAR g(a( )x ,) where alpha represents a correction factor. The estimation may be corrected by calculating the correction factor, retrieving the correction factor from a predetermined table (512B) or retrieving the corrected estimation from a predetermined table.

公开(公告)号：EP1440521B1

公开(公告)日：2007-08-08

申请号：EP02745563.3

申请日：2002-07-02

申请人： IPWireless, Inc.

发明人： JONES, Alan, Edward ,  GEERS, Steven

IPC分类号： H04B1/707 ,  H03H17/02

CPC分类号： H04B1/7093 ,  H04B2201/70703

摘要： A chip rate invariant detector is used in a wireless spread spectrum high capacity communications system which can accommodate two or more different chip rates. At a higher chip rate the data blocks are segmented into uniform suitable sizes for the detector which has an encreased data block length to prevent loss of information to smearing due to effective overlap of segmenteddata blocks. The resultant data blocks are cut down to standard size by discarding samples (21) and applies to a matched filter (23) for further standard information processing.

摘要翻译： 码片速率不变检测器用于无线扩频高容量通信系统，该系统可以容纳两种或更多种不同码片速率。 在较高的码片速率下，数据块被分段成具有增加的数据块长度的检测器的统一的合适尺寸，以防止由于分段数据块的有效重叠而导致信息丢失。 通过丢弃样本（21）将结果数据块缩减为标准大小，并将其应用于匹配滤波器（23）以进行进一步的标准信息处理。

公开(公告)号：EP1779545A1

公开(公告)日：2007-05-02

申请号：EP05801370.7

申请日：2005-08-10

申请人： IPWireless, Inc.

发明人： ANDERSON, Nicholas William

IPC分类号： H04B7/005

CPC分类号： H04W52/242 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/221 ,  H04W52/24 ,  H04W52/241 ,  H04W52/243 ,  H04W72/0473 ,  H04W72/1268 ,  H04W72/1289

摘要： A method, system and apparatus for setting a transmit power control level in a wireless communication system. Aspects of both open loop and closed loop transmit power control schemes are used to determine a transmit power level. A method includes measuring a power level of a received signal, receiving a transmit power control (TPC) command, and calculating a transmit power level based on the path loss and the TPC command. The TPC command sent to the remote transceiver from the base station includes a step indicator. The step indicator value is based on whether a measured received interference value is greater than or less than a target interference value at the base station. The power level for the remote transceiver is based on the path loss and the step indicator value.

公开(公告)号：EP1757118A1

公开(公告)日：2007-02-28

申请号：EP05744934.0

申请日：2005-04-07

申请人： IPWireless, Inc.

发明人： RICHARDS, Derek, Whetstone Cottage ,  LEGG, Peter

IPC分类号： H04Q7/22

CPC分类号： H04W72/005 ,  H04W4/12

摘要： Methods, systems and apparatus are provided for determining whether or not to provide a multicast service in a first cell of a mobile radio network using inforr ation provided by one or more UEs in the network. For example, the cell multicas t service is activated in neighbouring cells by, responsive to receiving from a user equipment a user message including a list of neighbouring cells, a cell lis ted in this list initiates multicast service. This activation avoids the multica st setup-delay in case of handoff or allows diversity combining of multicast tra nsmissions from two cells. The list can, in addition to the cell identifiers, it clude signal measurements of neighbouring cell pilot signals or of detected mult icast transmissions. The transmission of the user message can be requested by a network initial message sent in the current cell, for instance a page notificati on or enhanced counting message indicating neighbouring cells.

公开(公告)号：EP1752010A1

公开(公告)日：2007-02-14

申请号：EP05749939.4

申请日：2005-05-10

申请人： IPWireless, Inc.

发明人： WILLIAMS, Andrew ,  SPEIGHT, Timothy

IPC分类号： H04Q7/38

CPC分类号： H04W36/12

摘要： An arrangement and method for radio network relocation of a mobile terminal (114) from a first base station controller (122) to a second base station controller (122') by anchoring at least some SGSN functions with respect to the first base station controller; and relocating at least some RNC functions from the first base station controller to the second base station controller. RNC (124), SGSN (132) and GGSN (134) components may be integrated together, and the RNC (124) may be parented by an SGSN. Alternatively, RANAP SGSN functionality may be split between SGSN and RNC, RANAP and user plane signals may be relayed by the first base station controller to the second base station controller, and the first base station controller may act as an anchor.

公开(公告)号：EP1690345A1

公开(公告)日：2006-08-16

申请号：EP04818414.7

申请日：2004-11-08

申请人： IPWireless, Inc.

发明人： ANDERSON, Nicholas, William

IPC分类号： H04B7/02 ,  H04B7/06

CPC分类号： H04B7/0691 ,  H04B7/022 ,  H04B7/0667 ,  H04B7/0857

摘要： A scheme for improved throughput in a communication system by combining non-time-coincident macro diversity with timeslot re-use, enabling the benefits of macro diversity to be achieved without substantial impact on the receiver architecture or design. A first number of transmitters transmit a first version of a signal in a first transmit time slot, a second number of transmitters transmit a second version of the signal in a second transmit time slot, wherein the first and the second time internals do not overlap at a user equipment. The information is retrieved at the user equipment by at least one of selection and/or combination among the plurality of received transmissions.

公开(公告)号：EP1665664A1

公开(公告)日：2006-06-07

申请号：EP04764250.9

申请日：2004-08-18

申请人： IPWireless, Inc.

发明人： BEALE, Martin, Warwick

IPC分类号： H04L12/56 ,  H04Q7/38

CPC分类号： H04W24/06 ,  H04W72/0413 ,  H04W92/10

摘要： A method, base station (122), remote station (118) and system (100), for scheduling HSDPA 3GPP TDD communication. The base station allocates resource to remote stations in order to receive channel quality information back from the remote stations. The resource allocated to a remote station contains no higher layer data. A scheduler in the base station uses the channel quality information in order to schedule remote stations and/or to decide on the channel coding and/or modulation to be applied to the data transmission. A mechanism is provided to ensure that data transmitted on HS-DSCH is not transmitted to higher layers. This may provide a convenient method of obtaining channel quality information allowing for improved scheduling and thus improved performance of the communication system.

公开(公告)号：EP1495569A1

公开(公告)日：2005-01-12

申请号：EP03717442.2

申请日：2003-04-08

申请人： IPWireless, Inc.

发明人： BEALE, Martin

IPC分类号： H04L1/00

CPC分类号： H04L1/0071 ,  H03M13/27 ,  H03M13/653 ,  H04L1/1812 ,  H04L1/1893

摘要： An arrangement and method for channel mapping in a UTRA TDD HSDPA wireless communication system by applying interleaving functions in first (530) and second (540) interleaving means to a bit sequence to produce symbols for mapping to physical channels, the first and second interleaving means being arranged to map symbols from respectively systematic and parity bits in a predetermined scheme, e.g., mapping symbols in a forward direction when a channel has an even index number, and in a reverse direction when a channel has an odd index number. The symbols may comprise bit-pairs, each of a systematic bit and parity bit. Systematic bits are preferably mapped to high reliability bit positions in TDD HSDPA, achieving a performance gain of between 0.2dB and 0.5dB. The forwards/reverse mapping allows a degree of interleaving that improves system performance in fading channels or channels disturbed by short time period noise or interference.