Abstract:
A method of controlling transmission power in a mobile radiocommunications system, in which at least two distinct physical channels transmitted by a single transmitter have their respective transmission powers controlled by a power control algorithm as a function of a target value for transmission quality (SIR target) correspond to a first channel which is taken as a reference, and in which, for a second channel, a transmission power offset (PO) relative to the first channel is applied, where necessary, the method being essentially characterized in that when there is a change in the required transmission conditions, a variation having a first value (Δ1) is applied to said target value (SIR target), and a variation having a second value (Δ2) is applied to said power offset (PO) so that said first channel has its transmission power changed by said first value and the second channel has its transmission power changed by a value equal to the difference (Δ1−Δ2) between said first and second values.
Abstract:
A method of managing processing resources in a mobile radio system, in which a first entity manages radio resources and corresponding processing resources, the latter being provided in a second entity separate from the first entity. The second entity signals to the first entity its global processing capacity, or capacity credit, and the consumption law, or quantity of the global processing capacity, or cost, for different spreading factor values. The first entity updates the capacity credit on the basis of the consumption law. In the case of multicode transmission using N spreading codes, the updating is effected on the basis of the cost for at least one of the N spreading codes.
Abstract:
A spectrum spreading of despreading device, in particular for transmission in a code division multiple access cellular mobile radio system is disclosed. In order to spread or despread an incoming sequence by means of spreading code of length Q, first, the data symbols of the income sequence are distributed into difference sub-sequences, and then each of the sub-sequences are spread or despread using a spreading code of length Q0 that is a multiple of length Q. The sub-sequences and the spreading codes of length Q0 that are applied to them are determined so that the sequence that would be obtained by superimposing the spread or despread sub-sequences obtained in this way is the same as that which would be obtained by spreading or despreading the incoming sequence using the code of length Q.
Abstract:
A method for improving performances of a mobile radiocommunication system using a power control algorithm for controlling a transmit power according to a transmission quality target value, and an adjustment algorithm for adjusting the transmission quality target value according to transmission requirements, the method including, upon the occurrence of a change in the transmission requirements, bypassing the adjustment algorithm, by applying a corresponding change to the transmission quality target value, so as to adjust it in an anticipated way.
Abstract:
A method for improving performances of a mobile radiocommunication system using a power control algorithm and being subject to transmission interruptions, wherein a recovery period is provided following a transmission interruption to compensate for the effects of the transmission interruption on the power control algorithm, and wherein the recovery period includes different parts wherein different types of compensation are successively carried out, these types being determined so as to ensure that a minimum compensation can first be obtained and that compensation is not higher than necessary thereafter.
Abstract:
A method of controlling transmission power in a mobile radio system in which a power control algorithm controls transmission power as a function of a transmission quality target value, wherein a target value is varied to compensate the effects of a compressed transmission mode in which transmission is interrupted during transmission gaps and the bit rate is increased correspondingly to compensate the transmission gaps. The target value variation includes a first component for compensating the effects of the increase in bit rate and a second component for compensating other effects of transmission gaps. A corresponding anticipated variation of the transmission power is applied, and the anticipated variation of the transmission power corresponds to an approximate value of the target value variation obtained by a process of approximation from the second component.
Abstract:
A first rate matching stage matches a number of input bits coming from a transport channel including a high-speed downlink shared channel (HS-DSCH) of a block of data bits to be transmitted from a base station of a communications network to one or more pieces of user equipment (UE) to a selected number of intermediate bits as determined by the buffer size management system. A virtual buffer stores the selected number of intermediate bits. A second rate matching stage matches the selected number of intermediate bits to a number of output bits equal to a maximum number of bits that is guaranteed to be transmitted by a set of high-speed physical downlink shared channels (HS-PDSCH) associated with the transport channel in a given time interval without adding bits.
Abstract:
A method of managing processing resources in a mobile radio system in which a first entity manages radio resources and corresponding processing resources provided in a separate second entity. The second entity signals to the fist entity its overall processing capacity and the amount of that overall processing capacity required for allocating radio resources for different bit rate values. The first entity then updates the capacity credit on each allocation of radio resources as a function of the corresponding bit rate.
Abstract:
A device controls an outer loop (5) for controlling the adjustment of a primary target value (SIRc) of an inner power control loop in a multiservice telecommunications installation. The external control loop (5) feeds the inner loop with the primary target value (SIRc) corresponding to a service. The device includes control means (9) adapted, if there are at least two different services in the installation, to select one service dynamically and as a function of a selected criterion so that the outer loop can determine a primary target value (SIRc) corresponding to the selected service.