Patent ID: 11853261

Abstract:
The present disclosure relates to a serving wireless communication node adapted to predict data files (A, B, C) to be requested by at least two served user terminals (2, 3) and to form predicted sub-data files (A1, A2; B1, B2; C1, C2). In a placement phase, the serving node is adapted to transmit predicted sub-data files (A1, B1; A2, B2) to cache nodes (APC1, APC2), each cache node (APC1, APC2) having a unique set of predicted different sub-data files of different predicted data files, and to receive requests (RA, RB) for data files from the served user terminals (2, 3). In a delivery phase, the serving node is adapted to transmit an initial complementary predicted sub-data file (Formula I) to the cache nodes (APC1, APC2), comprising a reversible combination of the remaining predicted sub-data files (A2, B1) for the files requested. If a cache node (APC1, APC2) requests re-transmission (RA2; RB1) of a predicted sub-data file (A2, B1), the serving node (AP) is adapted to transmit a further complementary predicted sub-datafile (Formula II) to the cache nodes (APC1, APC2), the file comprising a reversible combination of at least one re-transmitted predicted sub-data file (A2, B1) and at least one new predicted sub-data file (C1).