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

1. A method for assigning codes for data transmissions between a radio station and at least one subscriber station over a wireless interface of a radio communication system, where M codes are available for assignment and 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, comprising:

assigning in network-side equipment in the radio station N codes taken from the M codes in such a way 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 the N branches corresponding to the N codes in the representation at the same level, an equal number 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 originate from the second parent branch if N is an odd number.

2. A method as recited in claim 1 , further comprising scheduling by the radio station K codes of the N codes for simultaneous data transmissions between the radio station and subscriber stations after said assigning, 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.

3. A method as recited in claim 2 , wherein the K branches corresponding to the K codes lie contiguously adjacent to one another for each subscriber station.

4. A method in accordance with claim 3 , further comprising

terminating said scheduling of the K codes for at least one subscriber station; and

amending any existing schedule of codes for remaining subscriber stations by repeating said scheduling.

5. 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.

6. A method as recited in claim 5 , wherein the K branches corresponding to the K codes lie contiguously adjacent to one another for each subscriber station.

7. A method in accordance with claim 6 , further comprising

terminating said scheduling of the K codes for at least one subscriber station; and

amending any existing schedule of codes for remaining subscriber stations by repeating said scheduling.

8. 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.

9. 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.

10. A radio station in accordance with claim 9 , wherein the K branches corresponding to the K codes lie contiguously adjacent to one another for each subscriber station.

11. A radio station in accordance with claim 10 , wherein said at least one scheduling unit, after the scheduling of the K codes for at least one subscriber station is terminated, amends an existing schedule of the K codes for remaining subscriber stations by repeating the scheduling.