摘要:
A method and system for carrying out a handover between base stations of a telecommunication network. Each mobile terminal is in communication with a set of base stations including at least a first and a second base stations, the first base station receiving downlink data to be transmitted within data packets bearing a downlink sequence number to a first mobile terminal from an access gateway of the telecommunication network. The method includes determining a downlink sequence number, sending a handover request message to the second base station comprising the determined downlink sequence number and information related to the set of base station, requesting the second base station to receive data to be transmitted to the first mobile terminal from the access gateway, and stopping building data packets if the built data packets would bear a sequence number equal or higher than the determined downlink sequence number.
摘要:
The present invention concerns a method for updating a monitoring list of information identifying cells transferred by a base station of a wireless telecommunication network in a cell managed by the base station, the monitoring list comprising information identifying cells which are neighbour of the cell managed by the base station. The base station: receives a message comprising a path list comprising information identifying cells a mobile terminal has moved through, updates at least one monitoring list of information identifying cells according to the contents of the received path list, determines at least one modified path list from the content of the received path list, and for the or each modified path list: determines another base station from the content of the modified path list, sends the modified path list to the other base station.
摘要:
The invention concerns a method and a device for setting up the transfer of a multimedia content in a cell of a wireless cellular telecommunication network constituted of plural cells, the cells being neighbour of at least one other cell, each cell being managed by a base station. A first base station which manages a first cell receives from a second base station which manages a second cell which is neighbor of the first cell managed by the first base station, a message notifying that the second base station transfers the multimedia content in the second cell, the message comprising at least information identifying the multimedia content. The first base station obtains the multimedia content from the wireless cellular telecommunication network and transfers the multimedia content in the first cell.
摘要:
A method and a system for transferring an ongoing communication in which a mobile terminal is involved between a first and a second base stations of a wireless cellular telecommunication network. One of the base stations is located in a moving conveyance. The first base station obtains information indicating that the first base station will become a neighbor of the second base station, identifies a mobile terminal which is currently under communication with a remote telecommunication device through the first base station, transfers a message to the second base station requesting the second base station to prepare resources enabling the continuation of the communication through the second base station, obtains information indicating that the first base station has become a neighbor of the second base station, and transfers the ongoing communication in which the mobile terminal is involved to the second base station.
摘要:
The invention concerns a method and a device for setting up the transfer of a multimedia content in a cell of a wireless cellular telecommunication network constituted of plural cells, the cells being neighbour of at least one other cell, each cell being managed by a base station. A first base station which manages a first cell receives from a second base station which manages a second cell which is neighbor of the first cell managed by the first base station, a message notifying that the second base station transfers the multimedia content in the second cell, the message comprising at least information identifying the multimedia content. The first base station obtains the multimedia content from the wireless cellular telecommunication network and transfers the multimedia content in the first cell.
摘要:
The present invention concerns a method for enabling the determination of a cell in which a mobile terminal is located among a group of cells of a wireless cellular telecommunication network. Each cell of a group of cells is managed by a base station. The method comprises the steps of:—detecting the presence of the mobile terminal in the group of cells,—enabling the mobile terminal to transfer data to at least a part of the base stations which manage a cell of the group of cells,—receiving data from the mobile terminal through a base station which manages one cell of the group of cells,—determining the cell managed by the base station through which the data are received as the cell in which the mobile terminal is located.
摘要:
The present invention concerns methods and devices for enabling the determination, if a handover of a communication in which a first mobile terminal is involved has to be executed between base stations in an area managed by an entity of a wireless cellular telecommunication network. The entity: allocates a temporary identifier to the first mobile terminal, obtains a list of base stations through which a communication of the first mobile terminal has been authorized to go through, transfers, to each base station identified in the list of base stations, a first message comprising at least the temporary identifier of the first mobile terminal.
摘要:
The present invention concerns a method for determining if a call, in which a mobile terminal located in a cell of a base station of a wireless telecommunication network is involved, has to go through the base station, characterised in that the method comprises the steps of: receiving a command representative of a level of acceptance of calls going through the base station, obtaining a class of service associated to the call, deciding if the call has to go through the base station according to the class of service of the call and the level of acceptance of calls going through the base station.
摘要:
The invention concerns a method for admission control of connections made up of one or several flows to a shared wireless medium. It applies a criteria for each new connection to determine whether resources can be provided for this connection. Said criteria includes the steps: calculating a number (R) of retransmissions of frames which are needed, depending on: a target application PDU error rate (εi); a data link layer mean error rate (BER); and a maximum size (L) of the transmitted frames; calculating the achievable quality of service parameters (T′i) based on the calculated number (R) of retransmissions with the target application PDU error rate (εi), and determining if resources can be provided for the connection depending on the or each achievable quality of service parameter (T′i).
摘要:
The present invention concerns a method for updating a monitoring list of information identifying cells transferred by a base station of a wireless telecommunication network in a cell managed by the base station, the monitoring list comprising information identifying cells which are neighbor of the cell managed by the base station. The base station: receives a message comprising a path list comprising information identifying cells a mobile terminal has moved through, updates at least one monitoring list of information identifying cells according to the contents of the received path list, determines at least one modified path list from the content of the received path list, and for the or each modified path list: determines another base station from the content of the modified path list, sends the modified path list to the other base station.