摘要 |
<p>The invention includes several embodiments for slot assignment in CDM communication systems. Some of the embodiments relate to fixed beams (1-M) includes : assigning slots (TS1-TSN) by first detecting a beam having the best received quality and selecting the best slot from that beam; determining the best slot or slots in a number of beams (1-M) and determines the overall best beam/slot combination; and using a modified interference factor. One embodiment for the uplink using adaptive arrays (34) using a spatial analysis stage followed by a transmission power level estimation stage. An overall interference level associated with each slot (TS1-TSN) is determined and a slot having best overall quality is determined. Another embodiment for the downlink uses the spatial analysis and slot assignment of the uplink for the downlink. Another embodiment for the downlink uses a spatial and transmission power level estimation stages. For adaptive arrays (34), the slot assignment can be determined whether the path loss for each user is estimated or not and whether signals from each user are received or not.</p> |