Nordic Semiconductor ASA
MEMORY RETENTION FOR RADIO DEVICE

Abstract:

This document discloses a solution for controlling refreshing of memory resources of a dynamic random access memory. According to an aspect, there is disclosed an apparatus for a radio device, comprising: a dynamic random access memory circuit; a memory allocator configured to allocate memory resources from the dynamic random access memory circuit and to determine unallocated memory resources; a radio modem configured to communicate with the memory allocator in order to gain memory resources from the dynamic random access memory circuit; a memory refresh circuit configured to refresh the memory resources of the dynamic random access memory circuit; and a controller configured to determine, on the basis of a state change signal received from a radio modem of the radio device, that the radio modem is in an idle state and, in response to said determining, to control the memory refresh circuit to disable said refresh of the unallocated memory resources.