公开(公告)号：WO9927736A8

公开(公告)日：1999-07-22

申请号：PCT/SE9802076

申请日：1998-11-17

Applicant: ERICSSON TELEFON AB L M

Inventor： MAGNUSSON SVERKER ,  OLOFSSON HAAKAN ,  ISAKSSON KATARINA ,  TRZECIAK STEPHAN

IPC: H04W16/00 ,  H04W16/10 ,  H04W36/08 ,  H04W48/08 ,  H04Q7/38

CPC classification number: H04W16/00 ,  H04W16/10 ,  H04W36/08 ,  H04W48/08

Abstract: The present invention relates generally to the problem of determining the identity of a cell for e.g. cell handoff or automatic frequency planning, and more particularly to the problem of determining the true identity of a cell when only the transmission frequency and a non-unique identity code is known. A candidate list is created for each cell. This candidate list is created based on a function of various elements e.g. distance, transmission power, cell type, and antenna placement. The cells are then ranked on the candidate list based on this function. When a particular frequency/code combination is detected, the candidate list is then consulted, and the highest ranking cell with the same frequency/code combination is chosen as being the signal source. In an alternative embodiment the neighbor cell list is used to create the candidate list. If there are no matches on this list for the detected frequency/code combination, then the neighbors of the cells on the candidate list are also added to the candidate list which is then checked for a match.

Abstract translation: 本发明一般涉及确定例如细胞的细胞的身份的问题。 小区切换或自动频率规划，更具体地说，涉及当只知道传输频率和非唯一身份码时确定小区的真实身份的问题。 为每个单元格创建候选列表。 基于各种元素的功能创建该候选列表。 距离，发射功率，小区类型和天线放置。 然后基于该功能将这些单元排列在候选列表上。 当检测到特定的频率/代码组合时，然后查询候选列表，并且选择具有相同频率/代码组合的最高等级的单元作为信号源。 在替代实施例中，相邻小区列表用于创建候选列表。 如果检测到的频率/代码组合在该列表上没有匹配，则候选列表上的单元格的邻居也被添加到候选列表，然后检查匹配。

公开(公告)号：WO9827763A3

公开(公告)日：1998-08-06

申请号：PCT/SE9702123

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22 ,  H04Q7/36

CPC classification number: H04W16/18

Abstract: A method is disclosed whereby a cellular network's BA lists are modified so that the mobile terminals (12) in the network (10) can measure downlink interference on predetermined BCCH frequencies. These measurements can be made in all cells where the mobile terminals (12) are located and then reported back to the base station (20). The base station (20) maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink C/I or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink reference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：AU746136B2

公开(公告)日：2002-04-18

申请号：AU5502498

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22 ,  H04Q7/36

Abstract: A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：BR9713973A

公开(公告)日：2000-04-11

申请号：BR9713973

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22 ,  H04Q7/36

Abstract: A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：PL334049A1

公开(公告)日：2000-01-31

申请号：PL33404997

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22

Abstract: A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：CA2311337A1

公开(公告)日：1999-06-03

申请号：CA2311337

申请日：1998-11-17

Applicant: ERICSSON TELEFON AB L M

Inventor： TRZECIAK STEPHAN ,  MAGNUSSON SVERKER ,  OLOFSSON HAKAN ,  ISAKSSON KATARINA

IPC: H04W16/00 ,  H04W16/10 ,  H04W36/08 ,  H04W48/08 ,  H04Q7/38

Abstract: The present invention relates generally to the problem of determining the identity of a cell for e.g. cell handoff or automatic frequency planning, and more particularly to the problem of determining the true identity of a cell when only the transmission frequency and a non-unique identity code is known. A candidate list is created for each cell. This candidate list is created based on a function of various elements e.g. distance, transmission power, cell type, and antenna placement. The cells are then ranked on the candidate list based on this function. When a particular frequency/code combination is detected, the candidate list is then consulted, and the highest ranking cell with the same frequency/code combination is chosen as being the signal source. In an alternative embodiment the neighbor cell list is used to create the candidate list. If there are no matches on this list for the detected frequency/code combination, then the neighbors of the cells on the candidate list are also added to the candidate list which is then checked for a match.

公开(公告)号：AU5502498A

公开(公告)日：1998-07-15

申请号：AU5502498

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22 ,  H04Q7/36

Abstract: A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：CA2275590A1

公开(公告)日：1998-06-25

申请号：CA2275590

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22 ,  H04Q7/36

Abstract: A method is disclosed whereby a cellular network's BA lists are modified so that the mobile terminals (12) in the network (10) can measure downlink interference on predetermined BCCH frequencies. These measurements can be made in all cells where the mobile terminals (12) are located and then reported back to the base station (20). The base station (20) maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink C/I or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink reference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：PL186647B1

公开(公告)日：2004-02-27

申请号：PL33404997

申请日：1997-12-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ISAKSSON KATARINA

IPC: H04W16/18 ,  H04Q7/22

Abstract: A method is disclosed whereby a cellular network's Broadcast Control Channel Allocation BA lists are modified so that the mobile terminals in the network can measure downlink interference on predetermined Broadcast Control Channel Frequencies BCCH frequencies. These measurements can be made in all cells where the mobile terminals are located and then reported back to the base station. The base station maps the reported measurements to corresponding cells, and uses the mapping to produce a cell-to-cell interdependency matrix. For the preferred embodiment, the matrix describes the difference in path loss between cells. This path loss information can be used to derive downlink Carrier to Interference Ratio C/I Carrier to Adjacent Ratio or C/A ratios between cells (or combinations of those ratios) and thus an estimate of the downlink interference in the frequencies assigned to the same cells. Consequently, the downlink interference in the network can be taken into account when new frequencies are to be selected for each cell, which can be used to increase the overall quality of the network (in terms of the C/I).

公开(公告)号：AU748336B2

公开(公告)日：2002-05-30

申请号：AU1268399

申请日：1998-11-17

Applicant: ERICSSON TELEFON AB L M

Inventor： MAGNUSSON SVERKER ,  OLOFSSON HIKAN ,  ISAKSSON KATARINA ,  TRZECIAK STEPHAN

IPC: H04W16/00 ,  H04W16/10 ,  H04W36/08 ,  H04W48/08 ,  H04Q7/38

Abstract: The present invention relates generally to the problem of determining the identity of a cell for e.g. cell handoff or automatic frequency planning, and more particularly to the problem of determining the true identity of a cell when only the transmission frequency and a non-unique identity code is known. A candidate list is created for each cell. This candidate list is created based on a function of various elements e.g. distance, transmission power, cell type, and antenna placement. The cells are then ranked on the candidate list based on this function. When a particular frequency/code combination is detected, the candidate list is then consulted, and the highest ranking cell with the same frequency/code combination is chosen as being the signal source. In an alternative embodiment the neighbor cell list is used to create the candidate list. If there are no matches on this list for the detected frequency/code combination, then the neighbors of the cells on the candidate list are also added to the candidate list which is then checked for a match.