Method and apparatus for reducing radio interferences

摘要

The present application relates generally to use of radio resources in a radio access network (RAN) and, in more specific, Full-Duplex (FD) transmission on the same carrier. Due to the mobility of the UEs or the non-optimal grouping, two UEs belonging to different groups may be close to each other while performing transmission and cause serious transmission interferences to 5 each other. This is one of the problems which a method in accordance with the invention aims to solve. When the performing the method a RAN triggers a UE to measure 601 first interferences originated from a first group of UEs. Then the RAN triggers the same UE to measure 602 second interferences originated from a second group of the UEs. Finally, the RAN places 603 the UE into the first group, if the first interferences are higher than the second interferences. The both 10 groups of the UEs are composed of such user equipments which share a group-specific transmission pattern. Uplink and downlink resources of the RAN are scheduled according to a time-division to the UEs, so that simultaneous transmissions are allowed only for such user equipments that belong to different groups. Advantages of the invention are the following: 1) simultaneous transmission and reception is supported in a RAN and in a UE which is either a FD 15 UE or a HD UE, 2) different kinds of interferences are efficiently reduced, and 3) the interferences are measured in a way that saves power.

主权项

1. A method of reducing radio interferences, the method comprising the following to be performed in a radio access network:
triggering, by circuitry, a user equipment to measure first interferences originated from a first group of user equipments; triggering, by the circuitry, the user equipment to measure second interferences originated from a second group of the user equipments, wherein uplink and downlink resources of the radio access network are scheduled according to a time-division, so that simultaneous transmissions are allowed only for such user equipments that belong to different groups; and placing, by the circuitry, the user equipment into the first group when the first interferences are higher than the second interferences.