Abstract: A user data transmission method for transmitting uplink user data via an E-DPDCH, including: determining, at a radio network controller, that the mobile station transmitting the E-DPDCH to only a first cell transmits the E-DPDCH to the first cell and a second cell; notifying, at the radio network controller, E-HICH decoding information for decoding a E-HICH for the uplink user data to be transmitted by the second cell, to the mobile station based on the determination; transmitting, at the mobile station, the E-DPDCH to the first cell and the second cell, after the E-HICH decoding information is received; and decoding, at the mobile station, the E-HICH for the uplink user data to be transmitted from the second cell based on the E-HICH decoding information, and performing a retransmission control of the uplink user data toward the second cell based on the decoded E-HICH for the uplink user data.

Abstract: A transmission power control method for controlling a transmission power of an E-DPCCH, includes: determining, at a radio network controller, that a mobile station transmitting the E-DPCCH to only a first cell transmits the E-DPCCH to the first cell and a second cell; determining, at the radio network controller, an E-DPCCH Transmission Power Offset which is an offset from a transmission power of a DPCCH based on the determination; notifying, at the radio network controller, the E-DPCCH Transmission Power Offset to the mobile station; determining, at the mobile station, the transmission power of the E-DPCCH to be transmitted to the first cell and the second cell, based on the notified E-DPCCH Transmission Power Offset; and transmitting, at the mobile station, the E-DPCCH to the first cell and the second cell using the determined transmission power.

Abstract: The present invention relates to a transmission rate control method for controlling a transmission rate of user data to be transmitted via an uplink by a mobile station. A radio network controller notifies an initial maximum allowable transmission rate of the user data to the mobile station, when a serving cell of the mobile station is to be changed. The mobile station increases the transmission rate of the user data up to the initial maximum allowable transmission rate notified from the radio network controller automatically, while the serving cell is being changed. The mobile station increases the transmission rate of the user data up to a maximum allowable transmission rate in the changed serving cell of the mobile station automatically, after the serving cell has been changed.

Abstract: The present invention relates to a transmission rate control method of controlling a transmission rate of user data transmitted from a mobile station via an uplink. When a serving cell performing a scheduling control in the uplink of the mobile station transmits, to mobile station, an absolute rate grant channel for designating the maximum allowable transmission rate common in the serving cell, and when the mobile station is configured to determine the transmission rate of the user data based on the absolute rate grant channel, a non-serving cell other than the serving cell does not transmit a relative rate grant channel for adjusting the maximum allowable transmission rate.

Abstract: A user data transmission method for transmitting uplink user data via an E-DPDCH, including: determining, at a radio network controller, that the mobile station transmitting the E-DPDCH to only a first cell transmits the E-DPDCH to the first cell and a second cell; notifying, at the radio network controller, E-HICH decoding information for decoding a E-HICH for the uplink user data to be transmitted by the second cell, to the mobile station based on the determination; transmitting, at the mobile station, the E-DPDCH to the first cell and the second cell, after the E-HICH decoding information is received; and decoding, at the mobile station, the E-HICH for the uplink user data to be transmitted from the second cell based on the E-HICH decoding information, and performing a retransmission control of the uplink user data toward the second cell based on the decoded E-HICH for the uplink user data.

Abstract: It is an object of the present invention to perform a soft handover control in which an error rate is low in the Enhanced Uplink. A mobile communication control method according to the present invention includes the steps of: performing a change control for a transmission rate of uplink data to be transmitted from a mobile station UE to a first base station Node-B #1, while the first base station Node-B #1 and the mobile station UE are communicating with each other; determining that the mobile station UE is to perform soft handover between the first base station Node-B #1 and a second base station Node-B #2; instructing the first base station Node-B #1 and the mobile station UE to stop the change control for the transmission rate of the uplink data; and instructing the mobile station UE and the second base station Node-B #2 to start the soft handover.

Abstract: A transmission rate control method according to the present invention includes: transmitting, at a radio base station, an absolute grant channel including a mobile station identifier; judging, at a mobile station, in accordance with the mobile station identifier included in the received absolute grant channel, whether or not the received absolute grant channel is addressed to the mobile station; and controlling, at the mobile station, a transmission rate in an uplink in accordance with the absolute grant channel when the judgment result is affirmative. The mobile station identifier differs based on each of priority levels.

Abstract: The present invention can flexibly adjust trade-off between the radio network capacity and the radio quality by changing increase step of uplink user data in accordance with the congestion of uplink or the uplink user data type. A transmission rate control method according to the present invention includes the steps of; notifying, at a radio network controller RNC, an increase pattern of the transmission rate of the uplink user data to a mobile station UE, when setting, with the mobile station UE, a user data channel connection for transmitting the uplink user data and increasing, at the mobile station UE, the transmission rate of the uplink user data in accordance with the increase pattern, when receiving, from a radio base station Node B, a relative rate control channel RGCH for indicating that the transmission rate of the uplink user data should be increased.

Abstract: A transmission power control method for controlling a transmission power of an E-DPCCH, includes: determining, at a radio network controller, that a mobile station transmitting the E-DPCCH to only a first cell should transmit the E-DPCCH to the first cell and a second cell; determining, at the radio network controller, an E-DPCCH Transmission Power Offset which is an offset from a transmission power of a DPCCH based on the determination; notifying, at the radio network controller, the E-DPCCH Transmission Power Offset to the mobile station; determining, at the mobile station, the transmission power of the E-DPCCH to be transmitted to the first cell and the second cell, based on the notified E-DPCCH Transmission Power Offset; and transmitting, at the mobile station, the E-DPCCH to the first cell and the second cell using the determined transmission power.

Abstract: In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data.

Abstract: An uplink radio resource allocation method allocates, at a radio base station, an uplink radio resource used for uplink user data transmission to a mobile station. The method includes: allocating, at the radio base station, the uplink radio resource, so that total received power in an particular cell of the radio base station is equal to a first target value assigned by a radio network controller; and allocating, at the radio station, the uplink radio resource, so that a ratio of first received power from a serving mobile station to second received power from a non-serving mobile station is equal to a second target value assigned by the radio network controller, a serving cell of the serving mobile station being the particular cell, a non-serving cell of the non-serving mobile station being the particular cell.

Abstract: An uplink radio resource allocation method allocates, at a radio base station, an uplink radio resource used for uplink user data transmission to a mobile station. The method includes: allocating, at the radio base station, the uplink radio resource, so that total received power in an particular cell of the radio base station is equal to a first target value assigned by a radio network controller; and allocating, at the radio station, the uplink radio resource, so that a ratio of first received power from a serving mobile station to second received power from a non-serving mobile station is equal to a second target value assigned by the radio network controller, a serving cell of the serving mobile station being the particular cell, a non-serving cell of the non-serving mobile station being the particular cell.

Abstract: A mobile communication method according to the present invention includes: transmitting, from a mobile station, a retransmission-control applied dedicated physical data channel to which a retransmission control processing is applied and which is configured not to contain any transmission data blocks, when there is no transmission data block that should be transmitted, at a predetermined cycle, with a transmission power having a predetermined offset relative to a transmission power of a dedicated physical control channel; generating, by a radio base station, transmission power control information for controlling a transmission power of the dedicated physical control channel, by a closed-loop power control based on a reception quality of the dedicated physical control channel, and by an outer-loop power control based on a reception quality of the retransmission-control applied dedicated physical data channel, and transmitting the transmission power control information to the mobile station; and determining, by

Abstract: A transmission rate control method for controlling a transmission rate of user data transmitted by a mobile station via an uplink, include: notifying, at a radio network controller, a maximum allowable transmission rate of the user data to the mobile station, when the mobile station starts communications or when a cell to which the mobile station is to be connected is changed; and automatically increasing, at the mobile station, the transmission rate of the user data to the maximum allowable transmission rate that is notified by the radio network controller.

Abstract: The present invention avoids deterioration in the radio quality caused by a transmission interruption of uplink user data, by periodically controlling an outer loop transmission power.

Abstract: A transmission rate control method includes: measuring, at a radio base station, a reception power of a DPCH transmitted from the mobile station; extracting, at the radio base station, a transmission data block size of the uplink user data from an E-DPCCH; acquiring, at the radio base station, a transmission power ratio of an E-DPDCH to the DPCCH which corresponds to the extracted transmission data block size; calculating, at the radio base station, a reception power of the E-DPDCH based on the measured reception power and the acquired transmission power ratio; calculating, at the radio base station, a relative transmission rate of the uplink user data based on the calculated reception power; notifying, at the radio base station, the relative transmission rate to the mobile station via a E-RGCH; and controlling, at the mobile station, the transmission rate based on the notified relative transmission rate.

Abstract: A transmission rate control method for controlling, at a mobile station, a transmission rate of uplink user data, in a radio communication system capable of controlling a transmission rate of uplink user data based on an absolute transmission rate transmitted via an E-AGCH and a relative transmission rate transmitted via a E-RGCH, includes: notifying, from a radio network controller to the mobile station, information for identifying the E-AGCH to be transmitted from a serving cell, and not notifying, from the radio network controller to the mobile station, information for identifying the E-RGCH, when the mobile station establishes an E-DPDCH; and controlling, at the mobile station, the transmission rate of uplink user data, based on the absolute transmission rate which is received from the serving cell via the E-AGCH, without considering the relative transmission rate.

Abstract: A transmission rate control method for controlling a transmission rate of uplink user data to be transmitted by a mobile station, includes: determining, at the radio network controller, that the mobile station is shifted between a soft-handover state in which the mobile station establishes radio links with a plurality of cells and a non soft-handover state in which the mobile station establishes a radio link with only one cell; allocating, at the radio network controller, a first temporary identifier or a second temporary identifier as a common identifier for a common transmission rate control to the mobile station based on the determination of shifts; and controlling, at a cell which establishes a radio link with the mobile station, the transmission rate of the uplink user data of the mobile station using the first temporary identifier or the second temporary identifier.

Abstract: When an HSDPA and an Enhanced Uplink are applied, a dedicated physical channel, a high speed dedicated physical control channel, and an enhanced dedicated physical control channel are made to follow only a TPC bit of a serving cell; and when a received power of an enhanced dedicated physical data channel is large, a non-serving cell instructs a mobile station UE to reduce the transmission rate of the enhanced dedicated physical data channel so that an interference power from an adjacent cell in an uplink is controlled while communication quality in a downlink is prevented from deteriorating.

Abstract: In the conventional mobile communication system using an “Enhanced Uplink, the present invention improves a radio quality by preventing a decrease in a transmission rate of uplink user data, the decrease unintended by the radio base station Node B and caused by a false detection of a “Down” command in an RGCH.” A transmission rate control method according to the present invention includes: transmitting, from a radio base station to a mobile station, a relative transmission rate control channel for instructing to decrease the transmission rate of the uplink user data, only when the uplink user data transmitted from the mobile station has been successfully received.