560 results about "Cell lists" patented technology

The present invention relates to prioritizing special cells in cell selection in a cellular radio network. In a cellular radio network one or more cells provide a subscriber with special services or tariffs not offered to all subscribers. These cells are called subscriber's special cells. The mobile station measures an average reception level and calculates by means of them cell selection parameters on the basis of which the best cell is selected. In accordance with the invention, when the mobile station detects that the cell is one of cells of a special cell list stored in a memory, it checks first if the cell fulfils a minimum requirement of cell selection on the basis of the measured signal level. If the minimum requirement is fulfilled, the mobile station manipulates the calculation of the cell selection parameter of a special cell to the effect that the selection probability of a special cell is improved with respect to a normal cell. In a preferred embodiment of the invention, the manipulation of the calculation comprises a step of adding a predetermined margin to the measured signal level of a special cell before the cell selection parameter is calculated. This will minimize the possibility that the mobile station would accidentally be camped on a normal cell when it is within the area of a special cell.

The present invention relates to a cellular communications network and in particular to the problem of identifying cells for neighbor lists, or handover candidates when the cells are identified by a limited number of non-unique identities. The present invention includes a method for a radio base station, wherein the base station receives reports from one or more terminals in neighbor cells quality and non-unique identities. The match is sought in a neighbor cell list non-unique identity with a unique cell identity. If the match cannot be made without ambiguity, the base station causes the terminal to detect the unique cell identity. If the reason for the ambiguity is the particular cell is not included in the neighbor cell list it is included when its unique identity has been established. The uniquely identified cell is used if it is determined to perform a handover.

The present invention provides a mobile communication system, a radio network controller (RNC), and a neighbor cell list filtering method which can control the selection of a frequency to be used at the hard handover performed in a network environment using a plurality of frequency bands and frequencies to reduce the number of activation of the compressed mode operation as much as possible. The RNC produces a filtered neighbor cell list by using information contained in the UE capability indication reported by the user equipment and the use priority data on frequencies designated by the network operator, and neighbor cell information only suitable for the handover is left in the neighbor cell list and notified to the user equipment.

Aiming at the requirements of frequent cell handover, short handover time and high handover success rate in high-speed railway TD-LTE communication system, a fast handover method of TD-LTE communication system based on target cell pre-carrying is proposed. According to the train's running position, speed and direction, after the network planning is completed, a list of neighboring cells is generated in advance, and the switching position of each switching zone is preset, that is, the longitude and latitude position information. Before the train enters the overlapping area of ​​switching between two cells , when the distance from entering the handover zone is a certain value L, the source base station eNodeB determines and sends the pre-bearer information to the target base station eNodeB according to the measurement report of the user terminal UE, and the target base station eNodeB performs the evolution packet system ( Evolved Packet System (EPS) resources to bear the load, when the train enters the handover zone, if the train meets the handover criteria, the train will be handed over from the source cell to the target cell. Therefore, this method reduces the handover delay and is beneficial to improve the handover success rate. The method can dynamically adjust the switching method according to the mobile speed of the UE, solve the problem of fast switching in a high-speed mobile environment, reduce the number of communication drops, improve the success rate of switching, enhance the service quality of high-speed broadband mobile services, and promote high-speed railway trains. The development of domestic multimedia broadband mobile Internet services meets the growing needs of passengers for mobile communication services.

A method for performing handover in a multiple component carrier system includes a UE transmitting a measurement report message, including measurement values for one or more cells, to a source BS, the source BS transmitting a handover request message, including at least one of a candidate cell list including at least one candidate cell to be used in a target BS, an aggregatable cell list including at least one aggregatable cell in which UE capability is taken into consideration, and a list of sensible cells including at least one cell defined based on a similarity sensitivity of a measured frequency, to the target BS based on the measurement value, the source BS checking the cell included in the at least one list, receiving a handover ACK message including a final cell from the target BS, and determining handover, and the source BS transmitting a handover command message to the UE.

An apparatus, a system, and a method to self-optimize a forbidden neighbor cell list (FNCL). A FNCL includes a list of cells sent to a user equipment (UE). The UE would not report those cells in the list to a network but may be considered by the UE for measurement purposes only. The self-optimization of the FNCL includes building a list of neighbor cells in an autonomous and/or automatic manner, with or without human intervention.

A cell measurement method of a User Equipment (UE) is disclosed. The cell measurement method may include receiving a radio resource configuration dedicated Information Element (IE) and a measurement object from a serving cell. The radio resource configuration dedicated IE may include first information about a measurement resource restriction pattern for a first cell and the measurement object may include a neighbor cell configuration IE for indicating MBMS Single Frequency Network (MBSFN) configurations of one or more neighbor cells. The measurement object may further include second information about a resource restriction pattern indicating subframes on which restriction is imposed in Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ) measurements of one or more neighbor cells and a list of one or more neighbor cells to which the second information is applied. If the MBSFN configurations of the one or more neighbor cells are not known or not explicitly indicated by the neighbor cell configuration IE, the method may further include determining that the subframes indicated by the second information have not been configured as MBSFN subframes for the one or more neighbor cells listed in the list.

A neighbor cell management method and apparatus is provided for adjusting a number of neighbor cells to be managed adaptive to a mobility and electric field status of a mobile terminal. The neighbor cell management method determines a number of cell changes in a first interval as counted by a first timer and determines a received signal strength of a current serving cell, determines a mobility of the mobile terminal and electric field status based on the number of cell changes and received signal strength, and adjusts a number of neighbor cells listed on a neighbor cell list according to the mobility and electric field status.

The embodiment of the invention discloses a measuring method, a device and a system of a neighbouring cell. A neighbouring cell list updating method comprises the following steps: non-dedicated connection status terminals receive automatic neighbouring cell relation optimization indication messages sent by network equipment; cells which are not in a neighbouring cell list are measured, and/or the global cell identifications of the cells which are not in the neighbouring cell list are read according to the automatic neighbouring cell relation optimization indication messages. For the terminals executing business, the neighbouring cell measurement and task reporting do not need to be executed by applying the technical scheme of the embodiment of the invention, thereby avoiding the influence on the business in the process of updating the neighbouring cell list.

The present invention is related to cellular radio communication network and is a method for determining a Monitored set (MS) of cells associated with an Active set (AS) of cells by a particular ranking of the neighbouring cells associated with each of the cells in the Active set. A neighbouring cell list is created which contains for each active cell its neighbouring cells. These cells can be in a random order and can include other active cells. A scanning operation is done starting with the neighbouring cell (C12 or C31) on top of the list which belongs to the strongest active cell (C11), whereby this cell will be included in the Monitoring set if certain conditions (3,4;respectively, FIG. 4). Next, the list associated with the next strongest active cell (C12) is considered. This scanning is repeated until the maximum size of the Monitoring set has been reached.

A vector map representation of page information to perform trapping. The vector map representation combines the positive attributes of both raster and vector based representations to make trapping more efficient by combining the sparseness of the vector representation and the constant unit complexity of the raster representation. In the preferred embodiment of the invention, a page is defined by tiles, and each tile is mapped to a 2-D array of edge pointers referred to as the vector map. Each cell in the vector map contains a list of all of the edges of the image that pass through it. A pair of edges can only interact if they are in the same vector map cell list. Thus, edge intersection and color finding tests are localized as with raster based trapping while the data sparseness of vector based trapping is retained. For a suitably chosen vector map size, a single edge generally does not intersect many cells. A trapping function is applied to edges as determined from the vector map.

A networked computer system in a cellular communications network comprises a processor, a memory, and a non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, cause the processor to generate a local cluster list by identifying a plurality of cells that are relevant to a maintenance or optimization operation of a reference cell using at least one neighbor cell list, a centroid of the reference cell, radio network planning data, or usage data of the reference cell, the local cluster list including local cluster information for the plurality of cells that are relevant to the maintenance or optimization operation, and store the local cluster list in the memory.

In a radio access network (14) comprising a serving radio network control node (26₁) and a drift radio network control node (26₂), a determination is first made that a target cell controlled by the drift radio network control node should be prepared for handover with respect to a user equipment unit (30). The target cell is neighbored by a set of neighboring cells, the set of neighboring cells including a first subset of neighboring cells and a second subset of neighboring cells, a handover involving the user equipment unit being permitted for a cell of the first subset but not for a cell of the second subset. In accordance with the determination, a message including a filtered list of cells is sent to the user equipment unit, the filtered list of cells including the first subset but not the second subset. The filtered list of cells can comprise, for example, a list of cells for whose frequencies the user equipment unit is to perform measurements. Which nodes perform the actions of (1) determining an allowed area(s) for the user equipment unit; and (2) preparing the filtered list of cells using the allowed area(s) depends on which of various alternative implementations are utilized.

A cellular communication system comprises a first base station (103) supporting user equipments (101) in a first cell. A user equipment (101) is supported in the first cell by the first base station (103) and is arranged to transmit previous cell switch candidate data to the first base station (103). The previous cell switch candidate data comprises an indication of at least one cell switch candidate for at least one base station supporting the user equipment prior to the first base station (103). The first base station is arranged to receive the previous cell switch candidate data transmitted from the user equipment (101). The previous cell switch candidate data may be used for different purposes such as synchronization of cells or generation of suitable cell switch candidate lists, such as neighbour cell lists. In particular, the approach may allow an improved automated or semi-automated generation of neighbour cell lists for a dynamically changing cell layout.

A method and system for detecting an insufficient coverage location in a mobile network is provided to detect the insufficient coverage location in a systematic and efficient way. The method generates a corresponding cell list for a registered address of a subscriber of the mobile network, where the cell list comprises at least one cell that potentially covers the registered address. Next, the call detail record (CDR) entries associated with the cell list are extracted. Then, it is determined whether the registered address is an insufficient coverage location of the mobile network according to the error codes included in the extracted CDR entries.

The invention discloses a method and device for measuring an LTE adjacent region in a non-LTE network. The method comprises the steps that an LTE cell range to be measured is selected in LTE adjacent cell information stored in user equipment; the LTE adjacent cell within the LTE cell range to be measured is measured. LTE adjacent cell information comprises an LTE frequency point list and/or an LTE networking frequency point list issued by an LTE network and/or an LET adjacent cell list configured by the non-LTE network. According to the method and device, LET adjacent cell measurement can be achieved more effectively, and one possible purpose is that the user equipment can stay on the LTE network from the non-LTE network fast and initiatively according to an LTE adjacent cell measurement result.

The invention discloses a mobile network connection registering method and device and a computer readable storage medium, relates to the mobile communication technology field, and is aimed at solving the technical problem that a terminal cannot search a network again for connection when a mobile network responses to reject information. The method comprises the following steps: when reject information replied by a mobile network is received, storing a first cell identifier and first frequency point information corresponding to a current network cell where a terminal resides in a forbidden cell list; adopting a wireless access technology with the same network mode to search the mobile network again, and obtaining a second cell identifier and second frequency point information corresponding to a new network cell; and when a position cell identifier, a routing cell identifier or a tracking region identifier of a network region where the terminal is located do not change, judging whether the forbidden cell list contains the second cell identifier and the second frequency point information, and if the forbidden cell list does not contain the second cell identifier and the second frequency point information, residing in the new network cell and making a registering request again so that the terminal can be connected with the mobile network through the network mode.

A method for determining the co-location of cell sites includes the steps of acquiring a neighbor cell list (602), monitoring the neighbor cell sites for longitude and latitude information (604). Te longitude and latitude information is used fo calculating the distance and bearings between the serving and neighbor cell sites (606 and 608). Neighbor cell sites having similar bearing and distances are grouped together (610), if grouped neighbors are in close proximity, the centroid of a polygon formed by the sector vertices is determined (614) and new latitude and longitude information for the centorid is determined (616). The neighbor cell list is then modified to indicate sectored versus omni-directional sites (620) and the information is then used by the communication device to make better mobility decisions. In another embodiment of the invention, the co-location information is used to minimize ping-pong effect which causes a communication device to be continually being handed back and forth between ell sites.

The invention discloses a method for sending Minimization Driving Test(MDT) measure configuration parameter, a system and equipment thereof which are used to solve the problem that network side configuration terminal UE can not carry out MDT measure when needed, relating to the wireless communication technical field. The method comprises the following steps: Mobile Management Entity (MME) receives terminal MDT measure configuration parameter sent by Home Subscriber Server (HSS); MME determines whether cell list information in the MDT measure configuration parameter contains the cell information of the base station to which the terminal belongs; if so, MME sends the MDT measure configuration parameter to the base station to which the terminal belongs. According to the invention, the problem that UE can not carry out MDT measure is solved.

The embodiment of the invention relates to the communication field, and discloses a method for updating a neighbor cell list, as well as a system and a related device thereof. A base station controller adds a determined cell which is adjacent to a newly added Femto cell as a main cell, a newly added Femto cell is the neighbor cell list of the neighbor cell; a neighbor cell list of the Femto cell is added in the neighbor cell to complement the neighbor cell list which is reselected and switched from the cell in the direction. A mobile terminal in the neighbor cell can conveniently monitor and select the Femto cell as a candidate cell for reselection at idle time and for switching at connection state.

The invention discloses a planning method of an adjacent cell of a mobile honeycomb network: 1. A planning district is divided into a plurality of point lattices in an electric map; 2. according to each point lattice and based on the covered point analysis method, a statistic analysis of a candidate adjacent cell list of each sector in the district is done; 3. A triangulation with directions based on distance is made and the candidate adjacent cell list of each sector is got; 4. The two results of the candidate adjacent cell got from Step 2 and Step 3 are combined. According to the chosen priority, a proper cell in the candidate adjacent cells of each sector is chosen to be an adjacent cell of the cell. The invention is characterized in that the point analysis based on the coverage and the triangulation with directions based on distance are used to plan the adjacent cells at the same time, and while choosing the adjacent cells, the cells of prior strength or of prior distance can be chosen to be an objective adjacent subdistrcit, thus achieving the aim of improving the succeed ratio of the switch-in and improving the entire using efficiency of the system resources.

The invention provides a carrier-aggregation-based switching method, and an inter-board polymerization switching method and device. The carrier-aggregation-based switching method comprises the following steps: receiving a measurement report reported by UE; generating a candidate cell list according to the measurement report; judging whether a target main cell meets the switching requirement; sending a switching request message to a target base station when the target main cell meets the switching requirement; receiving a switching request confirmation message sent by the target base station; sending a switching command to the UE, wherein the switching command comprises configuration information of the target main cell and configuration information of successfully configured aggregation auxiliary cell so as to reconfigure a novel target main cell and a aggregation auxiliary cell according to the configuration information of the target main cell and the configuration information of successfully configured aggregation auxiliary cell after the UE receives the switching command. Consequently, the carrier aggregation in the switching technology which supports the carrier aggregation can be used for supporting the switching between one UE and service communication of a plurality of cells.

The invention provides a method for controlling cell reselection and a wireless communication terminal. The method for controlling cell reselection comprises the following steps: the resident number of cells per unit time is recorded to judge whether frequent reselection is performed; and if so, a frequent reselection protection strategy is started to record the cells with lower priorities in an inhibited reselection cell list, thus the terminal can reside in the cell with higher service quality or with more stable signal level as far as possible. By adopting the method for controlling cell reselection, the problem that the broadcast control channel (BCCH) information is decoded by the mobile terminal as the target cell is inhibited or not accessed can be avoided, the standby power can be reduced, the operating efficiency of protocol stack can be increased; and the reselection parameter can be adjusted dynamically according to the wireless environment, the frequent reselection problem caused by the frequent fluctuation of the electrical level of the cell can be avoided, and the quality of wireless communication service and the user experience can be increased.

The invention discloses a method and device for realizing cell switching of a terminal in the high-speed moving state. The method comprises the following steps of: after the terminal receives an adjacent cell list transmitted by a base station, rearranging the adjacent cell list according to stored historic records of cell switching; and sequentially searching and measuring whether cells in the list are accordant with a switching condition according to the rearranged adjacent cell list, reporting to the base station while determining that the cells are accordant with the switching condition, and switching to the cells which are accordant to the switching condition under the control of the base station. The invention also discloses a device for realizing cell switching of the terminal in the high-speed moving state simultaneously. By the method and the device, the terminal can be switched to a suitable cell in the high-speed moving state, so that a service is continuous.