| 摘要 |
<p>A cellular communication system (100) comprises a network controller (113) having a first resource allocator (117) for allocating codes to a first set of calls in a cell. The network controller (113) is coupled to a base station (109) which comprises a second resource allocator (119) for allocating codes to a second set of calls in the cell. The first resource allocator (117) and the second resource allocator (119) share a code tree associated with the cell. The base station (109) comprises a code tree processor (209) that determines which codes are allocated by the first resource allocator (117) in response to call event signalling received from the network controller (113). The call event signalling may be related to a call setup, a call termination, a call handover and/or a call admission characteristic. The second resource allocator (119) allocates codes in response to the codes allocated by the first resource allocator (117) and in particular may allocate only codes not used by the first resource allocator (117).</p> |
