Network nodes, and methods thereof

Abstract

The present invention relates to first, second and third network nodes. The first network node (100) comprises a transceiver (102) configured to receive a first Radio Resource Management, RRM, message(702a), a second RRM message (702b), and a third RRM message (702c) from a user device (800), the first RRM message (702a) comprising a first RRM measurement report (704a) associated with the first network node (100), the second RRM message (702b) comprising a second RRM measurement report (704b) associated with a second network node (300), and the third RRM message (702c) comprising a third RRMmeasurement report (704c) associated with a third network node (500); a processor (104) configured to determine a first control message (710) based on the first RRM message (702a), the second RRM message (702b) and the third RRM message (702c), the first control message (710) comprising the third RRM measurement report (704c) and a data plane establishment request (DPER) between the user device (800) and the third network node (500); wherein the transceiver (102) is configured to transmit the first control message (710) to the second network node (300). The second network node (300) comprisesa transceiver (302) configured to receive a first control message (710) from a first network node (100), the first control message (710) comprising a data plane establishment request (DPER) between auser device (800) and a third network node (500) and a third Radio Resource Management, RRM, measurement report (704c) associated with the user device (800) and the third network node (500); a processor (304) configured to determine a second control message (720) comprising the data plane establishment request (DPER) and the third RRM measurement report (704c) if a communication interface exists between the second network node (300) and the third network node (500); wherein the transceiver (302) is configured to transmit the second control message (720) to the third network node (500). The third network node (500) comprises a transceiver (502) configured to receive a second control message (720) from a second network node (300), the second control message (720) comprising a data plane establishment request (DPER) between a user device (800) and the third network node (500) and a third Radio Resource Management, RRM, measurement report (704c) associated with the user device (800) and the third network node (500); establish a data plane connection to the user device (800) in response to the reception of the second control message (720) based on the third RRM measurement report (704c). Furthermore, the present invention also relates to corresponding methods, a computer program, and a computer program product.

Description

technical field [0001] The invention relates to network nodes. Furthermore, the present invention also relates to corresponding methods, computer programs, and computer program products. Background technique [0002] As we move towards 5G, the radio access network (RAN) is rapidly becoming denser and more heterogeneous. In the future, a Single Radio Access Network (Single RAN) architecture will support HetNet deployments, where anchor nodes such as long term evolution (LTE) eNodeBs provide wide-area coverage and signaling connectivity, while opposing small cells ) provides high-bandwidth user plane links for users such as user equipment (user equipment, UE). Small cells of different radio access technologies (RATs) and using different spectrum (including unlicensed spectrum) can be attached to the anchor node. In particular, in the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) LTE R12 and R13, different implementations of this concept have ...

AI Technical Summary

Problems solved by technology

Note that the handovers described are inter-frequency handovers, which are generally more reliable than intra-frequency coverage handovers, with the greatest risk being pico-to-macro handovers, but still considered less robust than simple radio resource control reconfigurations

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