Method for assigning and method for scheduling codes for data transmissions, between a radio station and at least one subscriber station, over an air interface of a radiocommunication system, together with network-side equipment and radio station

A method for scheduling codes for data transmissions between a radio station and at least one subscriber station over a wireless interface of a radio communication system, where the radio station has available for scheduling N codes taken from M codes, where each of the M codes corresponds to a branch at a same level in a code tree, so that a first half of M branches originates from a first parent branch and a second half of the M branches originates from a second parent branch, and where N is greater at least two and M is at least two multiplied by N, comprising:

• scheduling by the radio station K codes of the N codes for simultaneous data transmissions between the radio station and subscriber stations, where K is at least two, each of the K codes is only scheduled once and, of K branches corresponding to the K codes in the representation at a level, half originate from each of the first and second parent branches if K is an even number, while (K−1)/2 branches originate from the first parent branch and (K+1)/2 branches originate from the second parent branch if K is an odd number.

Network-side equipment for a radio communication system, comprising:

• a reservation unit reserving M codes, where each of the M codes corresponds to a branch at a same level in a code-tree, so that a first half of M branches originates from a first parent branch and the second half of the M branches originates from a second parent branch;
• and
• an assignment unit assigning codes for data transmissions between a radio station and at least one subscriber station over a wireless interface, in such a way that N codes taken from the M codes are assigned to the radio station, so that N branches corresponding to the N codes in the representation at the same level lie contiguously adjacent to one another, where N is at least two and M is at least two multiplied by N and, of N branches corresponding to the N codes in the representation at the same level, half of the N branches originate from each of the first and second parent branches if N is an even number, while (N−1)/2 branches originate from the first parent branch and (N+1)/2 branches from the second parent branch if N is an odd number.

A radio station for a radio communication system, comprising:

• at least one scheduling unit scheduling K codes, for data transmissions between the radio station and at least one subscriber station over a wireless interface, from N available codes taken from M codes, where each of the M codes corresponds to a branch at a same level in a code tree, so that a first half of M branches originates from a first parent branch and a second half of the M branches originates from a second parent branch, where N is at least two and M is at least two multiplied by N, where K is at least two of the N codes scheduled for simultaneous data transmissions between the radio station and subscriber stations, so that each of the K codes is only scheduled once and, of K branches corresponding to the K codes in the representation at a level, half originate from each of the first and second parent branches if K is an even number, while (K−1)/2 branches originate from the first parent branch and (K+1)/2 branches originate from the second parent branch if K is an odd number.