Support for asynchronous adaptation to uplink and downlink traffic demands for wireless communication

摘要

Technology is discussed to allow transmission points within a Wireless Wide Area Network (WWAN) to adapt to Up Link (UL) and Down Link (DL) traffic demands independently. To mitigate potential interference arising from transmission points scheduled for conflicting UL and DL transmissions, measurements between transmission points can be made to indicate a level of coupling. Based on the various levels of coupling between transmission points, clusters can be formed. Where a high level of coupling is present, transmission points can be included in a common cluster. Where a low level of coupling is present, they can be isolated. Transmission points within the same cluster are scheduled with a common pattern of UL and DL transmissions to avoid interference. Transmission points in different clusters can have different patterns of UL and DL transmission to independently adapt to the relative demands for UL and DL transmissions experienced within these different clusters.

主权项

1. A method for interference management and traffic adaptation in a wireless network with different Up Link and Down Link time slots and adaptive, asynchronous directional traffic resource allocation, the method comprising:
measuring, at a first eNodeB, a unit of coupling information between the first eNodeB and an adjacent eNodeB; making a clustering determination based on the unit of coupling information, wherein the clustering determination comprises one of a first determination that the first eNodeB and the adjacent eNodeB belong in a common cluster and a second determination that the first eNodeB and the adjacent eNodeB are isolated, wherein making the clustering determination based on the unit of coupling information further comprises reaching the first determination where at least one of a first condition and a second condition is met, wherein:
the first condition is that a performance of the first eNodeB is not substantiall egraded by a transmission direction of the adjacent eNodeB, andthe second condition is that a change of the transmission direction of the adjacent eNodeB does not substantially degrade the performance of the first eNodeB; and,otherwise reaching the second determination; and configuring the first eNodeB and the adjacent eNodeB with a common Up Link-Down Link (UL-DL) configuration where the fi rst determination has been made and configuring the first eNodeB with a first UL-DL configuration independently from a potentially differing UL-DL configuration pertaining to the adjacent eNodeB where the second determination has been made.