Abstract: A method includes acquiring a global handover performance parameter R, a local handover performance parameter r, and a handover parameter of a cell within a preset time; and detecting a handover problem, existing within the preset time, of the cell according to R and r. The method further includes receiving Rj, rj, a handover parameter, and indication information for a handover problem, within the preset time, of each adjacent cell that are sent by all adjacent cells; and determining whether the cell is a cell to be optimized. If an ith cell is a cell to be optimized, the method optimizes, according to Ri, ri, Rj, and rj, a handover parameter of the ith cell, and the handover parameters of the adjacent cells of the ith cell by using a data statistical regression method, a handover parameter corresponding to a handover problem of the ith cell.

Abstract: The present invention provides a method, a device, and a system for optimizing a tradeoff between capacity and coverage of a network. The method includes: receiving statistical information and a first count that are sent by a base station; establishing at least one coverage cluster; calculating cluster values of all the coverage clusters; acquiring an entire-network coverage hole (CH) value and an entire-network coverage overlap (CO) value; calculating an entire-network utility value according to the entire-network CH value and the entire-network CO value; if the capacity or coverage weight and the antenna downtilt of each base station in all the coverage clusters need to be adjusted, acquiring an adjustment value for the capacity or coverage weight of each base station and an adjustment value for the antenna downtilt of each base station according to an optimization strategy, and sending the adjustment values to a corresponding base station.

Abstract: A method for accessing to a mobile communication network, comprising: acquiring a session matching level for each cell, which is calculated based on a session type of a session initiated by a user terminal as needed, a session data rate available to the user terminal of each cell and load balance parameters of each cell; accessing to a cell selected according to the session matching level for each cell. Further, it also provides another method for accessing to a mobile communication network, and corresponding user terminal, network-side device and communication system.

Abstract: A method for allocating radio resources, a base station, and a system are provided. The method includes: acquiring statistical average user satisfaction of each access point in a relay cell, where the access point includes the base station and a relay node in the relay cell, the average user satisfaction is an average ratio of a total user rate obtained by an access point to a total user rate required by the access point, where the average ratio is in a statistical period; and when a difference between the statistical average user satisfaction of the base station and the statistical average user satisfaction of each relay node approaches a preset value, determining a resource partitioning weight of each access point; and calculating radio resources of each access point according to the resource partitioning weight of each access point, and allocating the radio resources to each access point.

Abstract: Embodiments of the present invention provide a method and an apparatus for dynamic spectrum management. The method includes: determining a reusable spectrum for one of multiple cell links in a network according to co-frequency indication information, where the co-frequency indication information is used to indicate reusable levels of spectrums of other cell links for each cell link in the multiple cell links; and updating a spectrum configuration of the one of the multiple cell links by using the reusable spectrum of the one of the multiple cell links. By determining a reusable spectrum for a specific cell link according to co-frequency indication information, embodiments of the present invention can locally adjust the spectrum configuration of the specific cell link, thereby reducing a spectrum configuration overhead while increasing network capacity and reducing inter-cell interference.

Abstract: A method for accessing to a mobile communication network, comprising: acquiring a session matching level for each cell, which is calculated based on a session type of a session initiated by a user terminal as needed, a session data rate available to the user terminal of each cell and load balance parameters of each cell; accessing to a cell selected according to the session matching level for each cell. Further, it also provides another method for accessing to a mobile communication network, and corresponding user terminal, network-side device and communication system.

Abstract: Embodiments of the present invention provide a network optimization method and a network optimization device. The method includes: acquiring, in a first time segment, a first network status parameter that is determined according to M groups of network status parameters of at least one target cell, and acquiring a first CP that is determined according to M groups of cell control parameters CPs of the target cell, where the network status parameters include a key performance parameter KPI and a cell measurement parameter, determining, according to the first network status parameter and from a first entry that records a mapping relationship between a network status parameter and a security status, a security status of the target cell in the first time segment; and performing network optimization on the target cell according to the security status of the target cell in the first time segment.

Abstract: The present invention provides a method, a device, and a system for optimizing a tradeoff between capacity and coverage of a network. The method includes: receiving statistical information and a first count that are sent by a base station; establishing at least one coverage cluster; calculating cluster values of all the coverage clusters; acquiring an entire-network coverage hole (CH) value and an entire-network coverage overlap (CO) value; calculating an entire-network utility value according to the entire-network CH value and the entire-network CO value; if the capacity or coverage weight and the antenna downtilt of each base station in all the coverage clusters need to be adjusted, acquiring an adjustment value for the capacity or coverage weight of each base station and an adjustment value for the antenna downtilt of each base station according to an optimization strategy, and sending the adjustment values to a corresponding base station.

Abstract: Embodiments of the present invention provide a method and an apparatus for dynamic spectrum management. The method includes: determining a reusable spectrum for one of multiple cell links in a network according to co-frequency indication information, where the co-frequency indication information is used to indicate reusable levels of spectrums of other cell links for each cell link in the multiple cell links; and updating a spectrum configuration of the one of the multiple cell links by using the reusable spectrum of the one of the multiple cell links. By determining a reusable spectrum for a specific cell link according to co-frequency indication information, embodiments of the present invention can locally adjust the spectrum configuration of the specific cell link, thereby reducing a spectrum configuration overhead while increasing network capacity and reducing inter-cell interference.

Abstract: The present invention discloses an adaptive cell coverage and capacity optimization method and device in a mobile communication network, aiming to improve adaptive optimization performance of cell capacity and coverage. The technical solutions includes: calculating spectral efficiency of a cell; if the spectral efficiency of the cell is less than a first threshold, starting vertical sectorization processing of the cell to divide the cell into an inner sector and an outer sector, and configuring relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell; calculating spectral efficiency of the outer sector; and if the spectral efficiency of the outer sector is less than a second threshold, starting inter-cell interference coordination to improve the spectral efficiency of the outer sector, and reconfiguring the relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell.

Abstract: A data retransmission method, a relay station, a base station, and a communication system are provided. The data retransmission method includes: receiving a reception report sent by a base station and source data frames of a current transmission period that are sent by a user equipment through a subchannel, where the reception report carries sequence numbers of source data frames of a previous transmission period and the source data frames are not correctly received by the base station; obtaining according to the reception report and pre-stored source data frames of the previous transmission period, a set C1 of source data frames of the previous transmission period that need to be retransmitted; performing joint encoding for the source data frames in the set C1 and the source data frames of the current transmission period; and sending forwarded data frames generated by joint encoding to the base station through the subchannel.

Abstract: A method for allocating radio resources, a base station, and a system are provided. The method includes: acquiring statistical average user satisfaction of each access point in a relay cell, where the access point includes the base station and a relay node in the relay cell, the average user satisfaction is an average ratio of a total user rate obtained by an access point to a total user rate required by the access point, where the average ratio is in a statistical period; and when a difference between the statistical average user satisfaction of the base station and the statistical average user satisfaction of each relay node approaches a preset value, determining a resource partitioning weight of each access point; and calculating radio resources of each access point according to the resource partitioning weight of each access point, and allocating the radio resources to each access point.

Abstract: The present invention provides a resource allocation method and device for an amplify-and-forward relay network. The method includes: obtaining channel information, where the channel information includes channel information between a base station BS and a relay station RS and channel information between the RS and each user equipment UE; calculating, according to the channel information, resource use information of each UE on each sub-channel pairing; and obtaining, according to the resource use information, the number of REs allocated to each UE on each sub-channel pairing, where the obtained number of the REs enables a preset first function to obtain a maximum value. In the embodiments of the present invention, the use efficiency of the resources may be improved.

Abstract: The present invention discloses an adaptive cell coverage and capacity optimization method and device in a mobile communication network, aiming to improve adaptive optimization performance of cell capacity and coverage. The technical solutions includes: calculating spectral efficiency of a cell; if the spectral efficiency of the cell is less than a first threshold, starting vertical sectorization processing of the cell to divide the cell into an inner sector and an outer sector, and configuring relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell; calculating spectral efficiency of the outer sector; and if the spectral efficiency of the outer sector is less than a second threshold, starting inter-cell interference coordination to improve the spectral efficiency of the outer sector, and reconfiguring the relevant parameters of the inner sector and the outer sector to improve the spectral efficiency of the cell.