Enabling direct connectivity between distributed units of radio-based applications to improve post-handover retransmission performance
AssigneeAmazon Technologies, Inc.
InventorOzgur Dural
Life of this patent
Estimating the term…
Abstract
A first distributed unit (DU) of a radio-based application determines that traffic associated with a particular user equipment device (UED) is to be handed over to a second DU. The first DU transmits contents of a buffer, including a data block transmitted from the UED, to the second DU using a direct network channel established between the DUs. The second DU stores the contents in a second buffer, and uses the contents to perform a retransmission operation associated with the traffic of the UED.
Claims21
-20. (canceled)
A computer-implemented method, comprising:
- storing, by a first distributed unit (DU) of a radio access network (RAN) of a radio-based application, a set of user data at a first network function accelerator card attached to a first virtualization server at an edge location of a cloud computing environment, wherein the set of user data is part of a data transfer between a pair of devices utilizing the radio-based application;
- receiving, by a second DU of the RAN from the first DU, the set of user data via a local path at the edge location, wherein the local path does not include a centralized unit (CU) of the RAN as an intermediary;
- and
- utilizing, by the second DU, the set of user data to perform a retransmission operation pertaining to the data transfer.
A system, comprising:
- one or more computing devices;
- wherein the one or more computing devices include instructions that upon execution on or across the one or more computing devices cause:
- a first distributed unit (DU) of a radio access network (RAN) of a radio-based application to store a set of user data at a first network function accelerator card attached to a first virtualization server at an edge location of a cloud computing environment, wherein the set of user data is part of a data transfer between a pair of devices utilizing the radio-based application;
- a second DU of the RAN to receive, from the first DU, the set of user data via a local path at the edge location, wherein the local path does not include a centralized unit (CU) of the RAN as an intermediary;
- and
- the second DU to utilize the set of user data to perform a retransmission operation pertaining to the data transfer.
One or more non-transitory computer-accessible storage media storing program instructions that when executed on or across one or more processors cause:
- a first distributed unit (DU) of a radio access network (RAN) of a radio-based application to store a set of user data at a first network function accelerator card attached to a first virtualization server at an edge location of a cloud computing environment, wherein the set of user data is part of a data transfer between a pair of devices utilizing the radio-based application;
- a second DU of the RAN to receive, from the first DU, the set of user data via a local path at the edge location, wherein the local path does not include a centralized unit (CU) of the RAN as an intermediary;
- and
- the second DU to utilize the set of user data to perform a retransmission operation pertaining to the data transfer.
Dependencies are inferred from the claim text.