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公开(公告)号：EP1476957B1
公开(公告)日：2009-02-18
申请号：EP02801966.9
申请日：2002-10-24
申请人： IPWireless, Inc.
发明人： ANDERSON, Nicholas
IPC分类号： H04B7/005
CPC分类号： H04W52/228 , H04B17/309 , H04W52/10 , H04W52/225 , H04W52/226 , H04W52/242 , H04W52/243 , H04W52/246 , H04W52/282
摘要： A method for performing power control in a wireless communication unit (112) operating in a wireless communication system (100), includes the steps of: determining (315) a path loss correlation metric to derive one or more parameters pertaining to a wireless transmission; and adjusting an output power level of said wireless communication unit in response to said one or more parameters.Basing power control calculations on a path loss correlation metric provides the advantage of improved power control performance particularly for slow moving subscriber equipment without compromising power control performance at high speed.
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52.发明授权
公开(公告)号：EP1506626B1
公开(公告)日：2008-11-26
申请号：EP03722873.1
申请日：2003-05-15
申请人： IPWireless, Inc.
发明人： ANDERSON, Nicholas
摘要： A system, transmitter, receiver and method for communication power control by the transmitting entity (150A) keeping a sequence number counter (200) per UE (130A) that is incremented whenever a common channel transmission is made specifically to that UE. The value of the counter is signalled inside the message itself (or possibly by other signalling means) across the Uu interface. When the intended recipient UE correctly decodes a message, it also decodes the counter value. It compares this counter value with the last correctly received sequence number, which it holds in a memory (300), and deduces whether there are any missing sequence numbers, and accordingly effects transmission power control
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公开(公告)号：EP1974572A2
公开(公告)日：2008-10-01
申请号：EP06841329.3
申请日：2006-12-11
申请人： IPWireless, Inc.
IPC分类号： H04Q7/38
CPC分类号： H04W72/1278 , H04W8/26
摘要： A method, user equipment, network equipment and a system for initiating a wireless connection and subsequent communication over a shared physical resource in a wireless communication system between user equipment and network equipment comprising: processing a UE-derived temporary identifier; communicating the temporary identifier as an identifier to the network equipment; communicating a downlink message conveying the temporary identifier and a description of a scheduled resource on a shared channel, the scheduled resource comprising a resource allocated to the user equipment by the network equipment; and communicating data on the scheduled resource in response to the downlink message.
摘要翻译： 一种用于发起无线连接以及随后在用户设备和网络设备之间的无线通信系统中的共享物理资源上进行通信的方法，用户设备，网络设备和系统，包括：处理UE导出的临时标识符; 将所述临时标识符作为标识符传送给所述网络设备; 在共享信道上传送传达所述临时标识符和对调度资源的描述的下行链路消息，所述调度资源包括由所述网络设备分配给所述用户设备的资源; 以及响应于下行链路消息在调度的资源上传送数据。
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54.发明公开AUTOMATIC SELECTION OF COHERENT AND NONCOHERENT TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开自动选择相干和非相干传输的无线通信系统
公开(公告)号：EP1952570A1
公开(公告)日：2008-08-06
申请号：EP06806963.2
申请日：2006-10-04
申请人： IPWireless, Inc.
CPC分类号： H04L27/32 , H04L1/0003 , H04L1/0025
摘要： A coherent or a noncoherent transmission mode is automatically selected for a transmission on the basis of an estimated Doppler frequency shift due to a motion of a mobile terminal. A coherent mode is selected if a pilot signal overhead is not excessive to uniquely characterize a Doppler frequency shift, as at lower carrier frequency times relative velocity products. A noncoherent mode is selected if a pilot signal overhead would be excessive to uniquely characterize a Doppler frequency shift at higher carrier frequency times relative velocity products. Both the coherent and noncoherent modes have respective advantages for their respective carrier frequency time relative velocity regimes.
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55.发明授权
公开(公告)号：EP1472803B1
公开(公告)日：2008-08-06
申请号：EP02770082.2
申请日：2002-10-21
申请人： IPWireless, Inc.
IPC分类号： H04B1/707
CPC分类号： H04L1/0056 , H04B7/2618 , H04B2201/70703 , H04L1/0041 , H04L1/0052 , H04L1/0071
摘要： A method and arrangement for processing of CCTrCH data in a UMTS system, by: receiving CCTrCH data across a plurality of radio frames and timeslots (310); storing the received CCTrCH data (320); and upon receipt of complete data for a CCTrCH, processing the stored CCTrCH data through channel processing asynchronously to the received timeslot structure (360). Preferably, the received CCTrCH data is stored in a single RAM memory in link-list form, whereby each timeslot of received CCTrCH data can be independently accessed in the memory. This method of buffering the different parts of the received CCTrCH data, so that they can be recombined before the TrCH decoding and de-multiplexing, is both memory efficient and spreads out the processing load over time.
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公开(公告)号：EP1908243A1
公开(公告)日：2008-04-09
申请号：EP06777941.3
申请日：2006-07-24
申请人： IPWireless, Inc.
CPC分类号： H04L25/0206 , H04L27/261 , H04L27/2647
摘要： An Orthogonal Frequency Division Multiplex (OFDM) communication system comprises OFDM transmitters (103-109) and an OFDM receiver (101) . The system comprises a subcarrier status data controller (200) for transmitting subcarrier status data to the OFDM receiver (101) . The subcarrier status data indicates a modulation scheme used on subcarriers of the OFDM transmitters (103-109) . The OFDM receiver (101) further comprises a subcarrier status processor (203) which receives the subcarrier status data and a channel estimator (205) which determines channel estimates for at least an air interface communication channel from the first OFDM transmitter (103) and an air interface communication channel from the interfering OFDM transmitter (105) . An interference mitigation processor (207) performs interference mitigation of the interference in response to the subcarrier status data and the channel estimates thereby providing improved recovery of the data from the first OFDM transmitter (103) .
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57.发明公开SELECTION OF TRAINING SEQUENCES IN A MULTILPE-IN MULTIPLE-OUT COMMUNICATION SYSTEM 有权练习序列在多输入多输出的通信系统中选择
公开(公告)号：EP1854256A1
公开(公告)日：2007-11-14
申请号：EP06707969.9
申请日：2006-02-01
申请人： IPWireless, Inc.
CPC分类号： H04B7/0684 , H04B1/7105 , H04B7/0413 , H04B7/0632 , H04L5/0023 , H04L5/0044 , H04L25/0226
摘要： A cellular communication system comprises a Multiple-In Multiple-Out, MIMO, transmitter (101) and receiver (103). The MIMO transmitter (101) comprises a message generator (303) for generating MIMO messages comprising selected training sequences and transceivers (305, 307, 309) transmitting the messages on a plurality of antennas (311, 313, 315). The training sequences are selected by a midamble selector (317) from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with the cell of the MIMO transmitter and comprises disjoint subsets of training sequences for each of the plurality of antennas. The receiver (103) comprises a transmit antenna detector (419) which determines which antenna of the MIMO transmitter the message is transmitted from in response to the training sequence of the received message.
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公开(公告)号：EP1784930A1
公开(公告)日：2007-05-16
申请号：EP05740256.2
申请日：2005-05-04
申请人： IPWireless, Inc.
IPC分类号： H04B7/06
CPC分类号： H04B7/0413 , H04B7/02 , H04B7/0615 , H04B7/0684 , H04L1/0026 , H04L25/0226
摘要： A method of generating signals in a MIMO timeslot, the method comprising: selecting a first training sequence; preparing a first data payload; generating a first signal including the prepared first data payload and the first training sequence; transmitting the first signal in a MIMO timeslot from a first antenna of a network element; transmitting the first signal in a MIMO timeslot from a first antenna of a network element; selecting a second training sequence, wherein the second training sequence is different from the first training sequence; preparing a second data payload; generating a second signal including the prepared second data payload and the second training sequence; and transmitting the second signal in the MIMO timeslot from a second antenna of the network element.
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59.发明公开
公开(公告)号：EP1779700A1
公开(公告)日：2007-05-02
申请号：EP05775832.8
申请日：2005-08-10
申请人： IPWireless, Inc.
IPC分类号： H04Q7/38
CPC分类号： H04W72/042 , H04W28/06 , H04W52/04 , H04W52/54 , H04W72/04 , H04W72/0446
摘要： A cellular communication system comprises a base station (101) and a plurality of user equipment (103). The base station (101) comprises a combine processor (111) which combines user equipment specific information, such as power control commands or synchronisation information, for a plurality of user equipment (103). An encode processor (113) encodes the combined user equipment specific information and a transceiver (109) transmits the combined user equipment specific information in a minimum transmission resource unit of the cellular communication system. The minimum transmission resource unit may be a single channelisation code in a single time slot. The UE (103) comprises a receiver (115) for receiving the minimum transmission resource unit and a UE data processor (117) which decodes the minimum transmission resource unit and extracts the user equipment specific information for that UE (103). The invention may provide a more efficient communication of small data blocks.
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公开(公告)号：EP1477039B1
公开(公告)日：2007-04-04
申请号：EP02770096.2
申请日：2002-10-23
申请人： IPWireless, Inc.
CPC分类号： H04W28/18 , H04W28/22 , H04W72/00 , H04W72/0446 , H04W72/0466
摘要： A scheme for resource allocation for variable rate users in a packet-based radio communication system such as a UMTS TDD system is based on a representation (200) of the resource space organised orthogonally in 3 dimensions by codes, timeslots and frames. The representation (200) is searched to identify new resources that may be allocated and updated when new resources have been allocated. This scheme provides an efficient method for placing allocated resources into the system resource space while maintaining efficient packing, and provides the following advantages: allocations that result in different overall throughput rates can be made to users; efficient packing of allocated resources means that wasted resources is minimised; since the representation of the system resource space is bounded, the stored information at the resource allocator function (in the radio access network) can be minimized; allocations are only made based on the most current frame in the representation of the system resource space this reduces required complexity; and the maximum number of frames into the future over which resources can be allocated can be used to modify the shape of allocations.
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