Method and arrangement for dynamic allocation of a shared bandwidth

摘要

A radio network node and a method therein, for controlling usage of RAT and bandwidth in a radio communication system. The method includes allocating a first RAT to a first bandwidth, allocating a second RAT to a second bandwidth, and allocating the first and second RATs to a third bandwidth comprising a part of the first bandwidth and/or a part of the second bandwidth. When the first RAT has a higher load than the second RAT, the method includes transmitting data for the first RAT in both the first third bandwidths, transmitting data for the second RAT only in the second bandwidth, and transmitting common control signals and/or pilot signals for the first RAT in the first and third bandwidths.

主权项

1. A method in a radio network node for controlling usage of Radio Access Technology, RAT, and bandwidth in a radio communication system, wherein the radio communication system comprises the radio network node configured to support transmission and reception of signals in a first RAT and in a second RAT, wherein the radio communication system comprises a plurality of terminals, and wherein each terminal supports only the first RAT, only the second RAT or both RATs, the method comprising:
allocating the first RAT to a first bandwidth; allocating the second RAT to a second bandwidth; allocating the first RAT and the second RAT to a third bandwidth comprising a part of the first bandwidth and/or a part of the second bandwidth; and when the first RAT has a higher load than the second RAT: transmitting data for the first RAT in both the first bandwidth and in the third bandwidth; transmitting data for the second RAT only in the second bandwidth; transmitting common control signals and/or pilot signals for the first RAT in both the first bandwidth and in the third bandwidth; and transmitting common control signals and/or pilot signals for the second RAT in the second and third bandwidths.