Method and device for information interaction, distributed unit and computer storage medium

Abstract

The embodiment of the present invention provides a method for information interaction, which relates to the field of communication technology. In the scenario where the round-trip delay of the forward transmission is greater than the maximum allowable time for the corresponding random access transmission, the random access of the user can be completed. Part of the random access-related functions are assigned to the DU, and the CU configures the random access-related resources for the DU, so that the part of the random access response can be directly completed through the DU, thereby avoiding the influence of the front transmission delay on the random access response. The embodiment of the present invention is applicable to the process of user random access.

Description

【Technical field】 [0001] The present invention relates to the field of communication technology, in particular to an information interaction method and device, a distributed unit and a computer storage medium. 【Background technique】 [0002] The mobile communication system of the present invention refers to that operators provide user terminals (such as mobile phones) by deploying wireless access network equipment (such as base stations) and core network equipment (such as Home Location Register, Home Location Register, HLR) and the like. A system of communication services. [0003] The base station of the access network can be further divided into a central unit CU (central unit) and a distributed unit DU (distributed unit). The CU and DU respectively carry different parts of the protocol stack. There are many ways to split the specific protocol stack. For example, in option 6, L1 and below are located in DUs and L2 and above are located in CUs, or in option 7, low-level L...

AI Technical Summary

Problems solved by technology

[0006] However, for scenarios where the round-trip delay of the fronthaul is greater than 13ms, the base station cannot send the RAR of a common UE within the RAR window, resulting in the UE being unable to access normally

[0007] Similarly, in the MulteFire standard, the random access response window is increased to a maximum of 20ms, and when the forward round-trip delay is greater than 23ms, the MulteFire UE also cannot complete the random access normally.

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