摘要:
Disclosed is a radio communication system in which transmission parameters, such as MCS of MBSFN, the number of subframes, and a transmission power of a reserved cell, are adaptively output, based on a unicast traffic volume in a MBSFN area, a number of terminals, and a number of cells of the MBSFN area, so that a system throughput in the MBSFN area is maximized while satisfying an MBSFN quality requirement condition.
摘要:
A resource allocation method and device are provided that can achieve uniform loads on and stable quality of a common channel available to mobile stations having no dedicated channels. A method for allocating common channel resources in a system in which a plurality of first radio communication devices transmit data to a second radio communication device over a common channel, based on first resource allocation information, includes: by the second radio communication device, transmitting second resource allocation information to at least one of the first radio communication devices; and by each of the first radio communication devices, transmitting data to the second radio communication device over the common channel, based on any one of the first resource allocation information and the second resource allocation information.
摘要:
A radio parameter control apparatus decides a radio parameter from which a throughput of UE is improved. A radio parameter control apparatus includes: a radio quality prediction unit (12) that predicts radio quality of a radio terminal due to change of a radio parameter of a radio cell; a resource-allocated number-of-communications prediction unit (13) that predicts the number of communications considered as allocation targets of radio resources in a radio cell due to the change of the radio parameter; a communication quality prediction unit (14) that predicts communication quality due to the change of the radio parameter based on a prediction result of the radio quality and a prediction result of the number of communications; and a radio parameter decision unit (15) that decides a radio parameter by which improvement of communication quality is predicted based on the predicted communication quality.
摘要:
A resource allocation method and device are provided that can achieve uniform loads on and stable quality of a common channel available to mobile stations having no dedicated channels. A method for allocating common channel resources in a system in which a plurality of first radio communication devices transmit data to a second radio communication device over a common channel, based on first resource allocation information, includes: by the second radio communication device, transmitting second resource allocation information to at least one of the first radio communication devices; and by each of the first radio communication devices, transmitting data to the second radio communication device over the common channel, based on any one of the first resource allocation information and the second resource allocation information.
摘要:
The present invention is applicable to a wireless communication system provided with mobile terminals and base stations that manage cells to which the mobile terminals are connected. The wireless communication system of the present invention has a new cell detection unit that detects, from among neighbor cells which are adjacent to the cells to which the mobile terminals are connected, new cells that have newly started or whose operation has resumed or whose geographical range has changed, and a neighbor cell list generation unit which preferentially registers new cells that have been detected by the new cell detection unit in neighbor cell lists in which are registered neighbor cells that are candidates for handover destinations of the mobile terminals.
摘要:
A communication device includes an calculation unit, a measuring unit, a setting unit, and a determination unit. The calculation unit calculates an index value according to each of the other communication devices for determining whether to let a wireless resource utilized for communications with the other communication device be a candidate allocated to the other communication device based on the quality of a channel to the other communication device. The measuring unit measures a congestion degree between itself and the other communication device. The setting unit calculates a threshold value for determining whether to let the wireless resource be the candidate allocated to the other communication device based on the measured congestion degree. The determination unit compares the index value with the threshold value to determine whether to let the wireless resource be the candidate allocated to the other communication device.
摘要:
A wireless communication system (100) includes a plurality of mobile stations (30, 40), a macro base station (10), and a femtocell base station (20) that communicatively connects to a registered mobile station. The femtocell base station (20) includes: a handover execution unit (25) that, when a communication quality of a received signal received from one mobile station which is not a registered mobile station satisfies a predetermined condition and a communication connection to another mobile station is made, hands over the communication connection of another mobile station to the macro base station (10); and a transmission power control unit (26) that, when a received signal is received from one mobile station which is not a registered mobile station and the communication connection to another mobile station is not made, suppresses power of a transmission signal transmitted to the mobile station.
摘要:
In order to effectively determine an optimized radio resource, a radio communication system (100) includes a plurality of first base stations (111) and a plurality of first mobile stations (112) respectively connected to the plurality of first base stations (111). In the radio communication system (100), there are included calculation means (103) for calculating a statistic (130) by aggregating interference levels of radio waves between the plurality of first base stations (111) and second mobile stations (122) connected to a second base station (121) that forms a second cell (120) larger than a first cell (110) formed by each of the first base stations (111); and determination means (104) for determining, based on the statistic (130), a radio resource to be used by the plurality of first base stations (111) or the plurality of first mobile stations (112).
摘要:
A communication control method is provided which improves a wireless resource usage rate, is available to recognize a variation in wireless resource state in advance, and is available to control communication in accordance with the variation in a mobile communication system in which an MBMS and an HSDPA coexist and the same wireless resource is shared and used. A MAC-m transmits information related to a wireless resource used on an MBMS transport channel at a transmission timing of a base station to a MAC-hs before the transmission timing. The MAC-hs receives the information related to the wireless resource of the MBMS transport channel from the MAC-m. The MAC-hs calculates a wireless resource which can be used applied to data of a HSDPA transport channel at the transmission timing with using the information related to the wireless resource of the MBMS transport channel and a wireless resource to which the HSDPA transport channel is allocated. The MAC-hs controls communication of the data in accordance with the wireless resource of the calculation result.
摘要:
To alleviate interference by a transmission signal on the uplink and downlink of a femto base station to a transmission signal on the uplink and downlink of a macro base station and/or a micro base station. A mobile station 9-2 and a femto base station 5-1 located within a macrocell 6 and a microcell 7 receive the HCS priority level of the macrocell 6 and the microcell 7 from a macro base station 3 or a micro base station 4. The mobile station 9-2 selects the microcell 7 having a higher HCS priority level, and performs communication by using a radio frequency RF3. Meanwhile, the femto base station 5-1 communicates with a mobile station by using a radio frequency RF1 used in the macrocell 6 having a lower HCS priority level.