摘要:
A mobile communication system is configured as a mobile station in a first communication state shifts to a second communication state when at least one high speed uplink packet communication compliant radio link is established by the mobile station.
摘要:
A mobile communication method includes: (A) assigning, at a radio network controller, a channelization code and a transmission timing for the mobile station on the basis of a status of use of a channelization code and a transmission timing in a sector other than a specific sector when the mobile station sets a radio link with the radio base station in the specific sector; and (B) notifying, from the radio base station, the mobile station of the transmission power control information via the transmission power control channel using the channelization code and the transmission timing assigned at the radio network controller.
摘要:
A mobile communication method according to the present invention includes: controlling, at the radio base station NodeB, the transmission power in the DPCCH by use of an inner loop transmission power control based on a target SIR; transmitting, at the mobile station UE, the uplink packet, at the transmission power in the E-DPDCH, the transmission power being determined based on the SG and the transmission power in the DPCCH; and determining, at the radio base station NodeB, the target SIR, by use of an outer loop transmission power control based on a HARQ transmission number and a reception result of an uplink packet transmission of the HARQ transmission number, the HARQ transmission number indicating what number transmission in the HARQ retransmission control is the uplink packet transmission.
摘要:
A transmission rate control method according to the present invention includes: determining, at the radio base station NodeB, a maximum granted value that can be notified to the mobile station UE, in accordance with a throughput at which the uplink user data transmitted from the mobile station UE to the radio base station NodeB is successfully received at a point of time; calculating, at the radio base station NodeB, as an allowable value to be notified to the mobile station UE, a granted value not more than the maximum granted value; notifying, from the radio base station NodeB to the mobile station UE, the granted value calculated at the radio base station NodeB, by using a transmission rate control channel; and transmitting, from the mobile station UE, the uplink user data, at the transmission rate corresponding to the granted value notified from the radio base station NodeB.
摘要:
A transmission rate control method including: notifying, from the mobile station UE to the radio base station NodeB, a data amount in a transmission buffer of the mobile station UE; determining, at the radio base station NodeB, a maximum allowable value that can be notified to the mobile station UE, in accordance with the data amount in the transmission buffer; calculating, at the radio base station NodeB, as a granted value to be notified to the mobile station UE, a value that does not exceed the maximum allowable value, notifying, from the radio base station Node B to the mobile station UE, the granted value calculated at the radio base station UE, by using a transmission rate control channel; and transmitting, at the mobile station UE, the uplink user data, at a transmission rate corresponding to the granted value notified from the radio base station NodeB.
摘要:
A transmission rate control method according to the present invention includes: selecting, at the radio base station NodeB, increase-allowed mobile stations whose uplink user data transmission rate can be increased at a predetermined TTI; equally dividing, at the radio base station NodeB, an available radio resource at the predetermined TTI, based on the number of increase-allowed mobile stations or the number of E-AGCHs that can be transmitted in the cell; and adding, at the radio base station NodeB, the radio resource equally divided by a radio resource allocating unit 13A, to each radio resources allocated to each mobile stations to which a transmission rate control channel (E-AGCH) can be transmitted and is one of the increase-allowed mobile stations.
摘要:
In a radio communication system in which a radio terminal 10 transmits, to a base station 100, uplink user data via an enhanced dedicated physical data channel, the base station 100 includes a base station side transmitter unit (scheduling unit 120a) configured to transmit, to the radio terminal 10, transmission rate decrease data for instructing a decrease of the transmission rate assigned to the radio terminal 10, when the uplink user data is not transmitted from the radio terminal 10 to the base station 100 by using the transmission rate assigned to the radio terminal 10.
摘要:
A base station according to the present invention includes: a detecting unit configured to detect a discard of the uplink user data received from a radio terminal; and a scheduling unit configured to transmit an AG or an RG instructing a decrease of an SG assigned to the radio terminal, when the discard of the uplink user data is detected by the detecting unit.
摘要:
A transmission rate control method according to the present invention includes: selecting, at the radio base station NodeB, increase-allowed mobile stations whose uplink user data transmission rate can be increased at a predetermined TTI; equally dividing, at the radio base station NodeB, an available radio resource at the predetermined TTI, based on the number of increase-allowed mobile stations or the number of E-AGCHs that can be transmitted in the cell; and adding, at the radio base station NodeB, the radio resource equally divided by a radio resource allocating unit 13A, to each radio resources allocated to each mobile stations to which a transmission rate control channel (E-AGCH) can be transmitted and is one of the increase-allowed mobile stations.
摘要:
A base station includes: a determination unit that determines whether or not a total of an initial transmission rate and assigned transmission rates exceeds a maximum receiving transmission rate when the base station receives a communication start request from a radio terminal; a selecting unit that selects a decrease target terminal when the total of the initial transmission rate and the assigned transmission rates exceeds the maximum receiving transmission rate; and a transmitting unit that transmits transmission rate decrease data to the decrease target terminal, and the base station causes the total of the initial transmission rate and the assigned transmission rates to be equal to or less than the maximum receiving transmission rate by transmitting the transmission rate decrease data.