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11. 发明申请

WO0147293B1 IMPROVED CELL ASSIGNMENT METHOD DURING GROUP CALLS 审中-公开
标题翻译：群组通话期间改进的小区分配方法
公开(公告)号：WO0147293B1
公开(公告)日：2002-01-31
申请号：PCT/US0031409
申请日：2000-11-15
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04W4/06 , H04W48/20 , H04Q7/38
CPC分类号： H04W48/20 , H04W4/06 , H04W8/186 , H04W36/04
摘要： A cell assignment process strives to minimize the number of cells assigned to mobile terminals involved in any given group call session in both circuit-switched and packet-data environments. In one embodiment, when a cell assignment trigger event is encountered during a group call, the decision whether to change cells or not is based at least in part upon whether the relevant cell is already participating in that group call session with another mobile terminal or not. If so, the cell assignment process preferentially selects such a cell for switching to or avoids changing cell assignment if already assigned there. In another embodiment other cells involved in the group call session are actively sought out and the cell assignments of the mobile terminals involved in the group call session are changed to those cells, even when the signal quality may be acceptable in the current cell. The mobile terminals involved in group call sessions may optionally be given preferential priority when switching cells so as to help minimize disruption to the group call session. Thus, the mobile terminals involved in the group call session are gradually urged toward congregating in the fewest possible cells under the circumstances. Accordingly, the present invention helps provide better service with less of a system capacity penalty for group call sessions.
摘要翻译：小区分配过程致力于在电路交换和分组数据环境中最小化分配给涉及任何给定组呼叫会话的移动终端的小区的数量。在一个实施例中，当在组呼期间遇到小区分配触发事件时，是否改变小区的决定至少部分基于相关小区是否已经参与与另一移动终端的该组呼叫会话。如果是，则小区分配过程优先选择这样的小区用于切换到或者如果已经在那里分配，则避免改变小区分配。在另一个实施例中，主动寻找涉及组呼叫会话的其他小区，并且组呼叫会话中涉及的移动终端的小区指派被改变为那些小区，即使信号质量在当前小区中可能是可接受的。参与群呼叫会话的移动终端可以可选地在切换小区时被给予优先级优先级，以便帮助最小化对群组呼叫会话的中断。因此，参与群组会话的移动终端逐渐被促使在这种情况下聚集在尽可能少的小区中。相应地，本发明有助于提供更好的服务，并且对于群呼叫会话具有较少的系统容量损失。

12. 发明申请

WO0044122A9 METHODS AND SYSTEMS FOR CODING OF BROADCAST MESSAGES 审中-公开
标题翻译：广播信息编码方法与系统
公开(公告)号：WO0044122A9
公开(公告)日：2001-06-07
申请号：PCT/US9929689
申请日：1999-12-13
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H03M13/05 , H04J3/00 , H04L1/00 , H04L1/08 , H04L1/22 , H04M3/00 , H04W4/06 , H04W28/04 , H04Q7/38
CPC分类号： H04L1/0072 , H04L1/0025 , H04L1/0065 , H04L1/007 , H04L1/08 , H04L2001/0093 , H04W76/002
摘要： A message is wirelessly broadcast to wireless terminals by error correction coding the message to produce an error correction coded message block, dividing the error correction coded message block into frames and error correction coding the frames to produce error correction coded frames. The error correction coding frames are wirelessly broadcast to the wireless terminals. At the wireless terminals, the frames are received and the frames are error correction decoded to produce error correction decoded frames. The error correction decoded frames are combined into a message block, and the message block is error correction decoded to produce the message. By error correction coding the entire message in addition to error correction coding the frames of the message, long messages may be reliably broadcast and received notwithstanding fading and the other problems in the transmission. Accordingly, a broadcast channel that is designed for short message usage also may be used to reliably transmit long messages. The invention may, for example, be applicable to a TDMA system that includes a Digital Control CHannel (DCCH) having a short message Service Broadcast Control CHannel (S-BCCH) logical channel. The error correction coded frames are placed in the S-BCCH logical channel. The S-BCCH logical channel is then wirelessly broadcast to the radiotelephones in a plurality of TDMA time slots.
摘要翻译：通过对消息进行纠错编码，将消息无线地广播给无线终端，以产生纠错编码消息块，将纠错编码的消息块划分为帧和对帧进行纠错编码以产生纠错编码帧。无线终端将无线广播纠错编码帧。在无线终端处，帧被接收，帧被纠错解码，以产生纠错解码帧。将纠错解码的帧组合成消息块，消息块被纠错解码以产生消息。通过对整个消息进行纠错编码，除了对消息的帧进行纠错编码之外，尽管存在衰落和传输中的其他问题，但是可以可靠地广播和接收长消息。因此，设计用于短消息使用的广播信道也可以用于可靠地发送长消息。本发明可以例如适用于包括具有短消息服务广播控制信道（S-BCCH）逻辑信道的数字控制信道（DCCH）的TDMA系统。纠错编码帧被放置在S-BCCH逻辑信道中。然后，S-BCCH逻辑信道在多个TDMA时隙中无线地广播到无线电话机。

13. 发明申请

WO0035137A8 METHODS AND APPARATUS FOR DECODING VARIABLY-CODED SIGNALS BASED ON PRIOR COMMUNICATION 审中-公开
标题翻译：用于解码基于先前通信的可变代码信号的方法和装置
公开(公告)号：WO0035137A8
公开(公告)日：2001-03-01
申请号：PCT/US9928671
申请日：1999-12-03
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER , MOSTAFA AYMAN
IPC分类号： H04L1/00
CPC分类号： H04L1/0046 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0038 , H04L1/0039
摘要： A signal representing variably coded information, i.e., information that is coded according to a code selected from a set of codes, is received at a first station. The received signal is decoding according to respective codes of the set of codes to generate respective likelihood metrics associated with respective codes of the set of codes. A code is selected from the set of codes based on the respective likelihood metrics, wherein the selection of the code from the set of codes is biased based on a prior communication between the first station and a second station that transmitted the signal. The received signal is the decoded according to the selected code to generate an estimate of the information. According to another embodiment, a signal representing a first variably code field and a second field that indicates the code applied to the first field, is received and processed to generate an estimate of the second field. Based on a confidence in the generated estimate of the second field, the receiving station either identifies the code applied to the first field based solely on the generated estimate of the second field, or identifies the code applied to the first field based on the generated estimate of the second field and respective likelihood metrics associated with decoding the received signal according to respective codes of the set of codes. In still another embodiment, an extent to which to partially decode a received variably coded signal to identify the code applied to the signal is determined based on a prior communication between the receiving station and a station that transmitted the signal.
摘要翻译：代表可变编码信息的信号，即，根据从一组代码中选择的代码进行编码的信息，在第一站处被接收。所接收的信号是根据该组代码的相应代码进行解码，以产生与代码集合的相应代码相关联的各自的似然度量。基于相应的似然度量从代码集中选择代码，其中基于代码的代码的代码的选择是基于发送信号的第一站和第二站之间的先前通信而被偏置的。所接收的信号是根据所选择的码进行解码以产生信息的估计。根据另一实施例，接收并处理表示第一可变代码字段的信号和指示应用于第一字段的代码的第二字段，以产生第二字段的估计。基于对所产生的第二场的估计的置信度，接收站仅基于所生成的第二场的估计来识别应用于第一场的码，或者基于所生成的估计来识别应用于第一场的码以及根据该组代码的相应代码与接收到的信号进行解码相关联的各自的似然度量。在另一个实施例中，基于接收站和发送信号的站之间的先前通信来确定对接收到的可变编码信号进行部分解码以识别应用于信号的代码的程度。

14. 发明申请

WO0031990A3 THERMAL TRANSMISSION CONTROL OF WIRELESS DATA MODEM 审中-公开
标题翻译：无线数据调制解调器的热传输控制
公开(公告)号：WO0031990A3
公开(公告)日：2000-11-23
申请号：PCT/US9926017
申请日：1999-11-22
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04M1/00 , H04B1/036 , H04B1/04 , H04B7/005 , H04B7/26 , H04L12/28 , H04L29/08 , H04W52/02 , H04L12/56
CPC分类号： H04B1/036 , H04W52/0251 , H04W52/36 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/40
摘要： A method for controlling temperature-related transmissions in radiocommunication systems. A mobile station includes a measuring device for determining operating temperature. When the measured temperature exceeds a predetermined threshold temperature, the mobile station can reduce its transmission rate, thereby reducing power dissipation within the device. The mobile station informs the system of the rate reduction, whereby the system can reallocate released resources, e.g., timeslots and/or spreading codes. The mobile station can also inform the user of the change in transmission rates and/or the temperature of the mobile station, whereupon the user can move to a better transmitting location. The mobile station can also take into account the transmit status of the current connection in determining when to reduce the transmission rate.
摘要翻译：一种用于控制无线电通信系统中的温度相关传输的方法。移动台包括用于确定工作温度的测量装置。当测量的温度超过预定的阈值温度时，移动台可以降低其传输速率，从而降低设备内的功率消耗。移动台通知系统速率降低，由此系统可以重新分配释放的资源，例如时隙和/或扩展码。移动台还可以通知用户传输速率和/或移动台温度的变化，于是用户可以移动到更好的发射位置。在确定何时降低传输速率时，移动台还可以考虑当前连接的传输状态。

15. 发明专利

DE60034487D1 未知
公开(公告)号：DE60034487D1
公开(公告)日：2007-05-31
申请号：DE60034487
申请日：2000-12-18
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04J3/00 , H04W36/00 , H04W36/32 , H04W40/24 , H04W64/00
摘要： The present invention relates to a mobile station capable of determining its current location within a wireless communication system. The mobile station periodically generates an estimate of its current location or mobility and then monitors channels for channel selection based thereon in order to minimize frame stealing while in active mode and save energy during idle mode. The same information is also useful for determining which cells to monitor and controlling how frequently position or changes of position estimates are made. Although the invention requires a determination of the mobile station's position or mobility, the manner in which the mobile station determines these characteristics may vary. A separate positioning receiver, terrestrial or satellite based, such as that used with the Global Positioning System, may allow the mobile station to calculate its position. Alternatively, the mobile station may monitor signals provided during communications with the base stations to calculate a relative position. In yet another embodiment, the base stations and associated cellular systems may cooperate to determine a particular mobile station's position and then download the position to the mobile station.

16. 发明专利

HK1053205A1 Thermal transmission control of wireless data modem 未知
公开(公告)号：HK1053205A1
公开(公告)日：2003-11-24
申请号：HK03105513
申请日：2003-07-31
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04M1/00 , H04B1/036 , H04B1/04 , H04B7/005 , H04B7/26 , H04L12/28 , H04L29/08 , H04W52/02 , H04B , H04L

17. 发明专利

AT226005T 未知
公开(公告)号：AT226005T
公开(公告)日：2002-10-15
申请号：AT99960276
申请日：1999-11-10
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04M3/00 , H04W48/18 , H04W88/06 , H04Q7/38
摘要： Proximity systems in conjunction with radiocommunication systems are described. Mobile stations include proximity detectors which recognize proximity signals transmitted by a proximity system. This recognition triggers a search, for example, for a private radiocommunication control channel. In this way, mobile stations have a mechanism which is independent of public radiocommunication cell characteristics for recognizing the presence of a private radiocommunication system.

18. 发明专利

AU8355201A Method to control the update frequency of a positioning device by a mobile terminal 未知
公开(公告)号：AU8355201A
公开(公告)日：2002-03-22
申请号：AU8355201
申请日：2001-08-08
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： G01S19/06 , G01S5/14 , G01S19/25 , G01S19/34 , G01S19/42
摘要： A mobile radiocommunications terminal contains or is operatively connected to a position estimator, such as a GPS receiver. The mobile terminal stores at least one reference position. The mobile terminal updates its position at a frequency that is a function of its distance from the reference position, or as a function of the rate of change of its distance from the reference position.

19. 发明专利

HK1035464A1 A METHOD FOR DETECTING THE POSITION OF A MOBILE COMMUNICATION UNIT IN A MOBILE COMMUNICATION SYSTEM 未知
公开(公告)号：HK1035464A1
公开(公告)日：2001-11-23
申请号：HK01106145
申请日：2001-08-30
申请人： ERICSSON INC
发明人： KOORPATY HAVISH , LUNDQVIST PATRICK NILS , RAITH ALEX KRISTER
IPC分类号： G01S5/14 , G01S19/06 , G01S19/25 , H04W64/00 , H04Q
摘要： Standard mobile cellular telephones use shortened burst signal transmissions to synchronize the transmission of a call over a cellular telephone network. These shortened bursts as well as other traffic channel bursts can be used to locate the position of the cell phone. In operation, a primary base station sends a traffic channel designation message to a selected mobile phone which then initiates selected traffic channel burst transmissions, such as shortened bursts, over an interval of five seconds or less. The primary station and at least two other neighboring base stations receive these burst transmissions and determine their respective distances from the cell phone based upon the time of arrival of the bursts or some other suitable distance related measurement. A command center determines the location of the cell phone by triangulating the distance measurements of the base stations.

20. 发明专利

DE69231972D1 未知
公开(公告)号：DE69231972D1
公开(公告)日：2001-09-06
申请号：DE69231972
申请日：1992-03-23
申请人： ERICSSON INC
发明人： RAITH ALEX KRISTER
IPC分类号： H04L9/32 , H04W12/06
摘要： A system for the validation and verification of base stations and mobile stations within a cellular radio communications network. The system includes a fixed key and a changeable key which are applied as inputs to an authentication algorithm. The algorithm generates key-dependent responses, at least one of which is independent of the changeable key. The responses generated by a particular mobile station are compared to the responses generated by the network and the presence of fraudulent users may be detected.

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