Invention Grant
- Patent Title: 5G QoS flow to radio bearer remapping
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Application No.: US16477765Application Date: 2018-01-11
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Publication No.: US11044643B2Publication Date: 2021-06-22
- Inventor: Angelo Centonza , Jari Vikberg , Alexander Vesely
- Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- International Application: PCT/IB2018/050181 WO 20180111
- International Announcement: WO2018/130968 WO 20180719
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W28/02 ; H04W80/08

Abstract:
According to some embodiments, a method for use in a network node of performing handover of a wireless device comprises: receiving a handover request from a source network node; receiving, from the source network node, a quality of service (QoS) flow to data radio bearer (DRB) mapping that was used by the source network node prior to the handover; receiving buffered Packet Data Convergence Protocol (PDCP) protocol data units (PDUs) from the source network node; transmitting the received PDCP PDUs using the received QoS flow to DRB mapping; obtaining an indication that handover is complete; determining a new QoS flow to DRB mapping; and activating the new QoS flow to DRB mapping for transmission of PDCP PDUs. Particular embodiments may include sending the new QoS flow to DRB mapping to the source network node, and/or receiving PDCP status reporting from the wireless device.
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