Patent ID: 7881191

Claim:
A method for performing packet combined scheduling of dedicated transport channels for packet services in UMTS downlinks, wherein dedicated traffic channels (DTCHs) in logical channels are mapped as dedicated channels (DCHs) in transport channels, and N DCHs, in their respective input queues, queue up for being transported to the corresponding M DPCHs, where M≦N, the method being characterized in that the method for performing packet combined scheduling of the DCHs comprises the following steps: a) prior to each DCH scheduling period, performing pre-selection processing of a transport format combination of each DPCH according to the predetermined restriction conditions for the DCH combined packet scheduling, so as to determine a usable transport format combination set TFCS m (2) for each DPCH; b) restricting a total downlink transmit power ∑ n = 1 N ⁢ P k , n of DCHs for NRT packet services to a schedulable power not exceeding a schedulable power in the estimation of a total downlink power during said scheduling period, i.e., the maximum allowable power value P k Schedulaed , where P k,n denotes an average transmit power required by the N-th DCH in the k-th scheduling period, and P k Scheduled denotes the maximum allowable power allocated to the DCHs which bear NRT packet services in the estimation of downlink power in the k-th scheduling period, and calculating a predicted/estimated value ĉ k,n of a proportional coefficient of an average transmit power P k,n of the n-th DCH and the number of the bit(s) R k,n of the n-th DCH scheduled to be output in the k-th scheduling period; c) based on fairness of DCH transportation and QoS requirements of the DCH-borne services, determining weighted values which the respective DCHs correspond to in the optimization of the DCH combined packet scheduling; and d) based on the results of steps a), b), and c), calculating the maximum number of bit(s) which each DCH is schedulable to output, using a 0-1 programming algorithm.