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US 10,951,533 B2Granted
Header formats in wireless communication
AssigneeQUALCOMM Incorporated
InventorsYue Yang, Shailesh Maheshwari, Aziz Gholmieh, Srinivasan Balasubramanian, Xing Chen, Arnaud Meylan
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Abstract
Aspects of the present disclosure relate to methods and apparatuses for wireless communication using a protocol data unit (PDU) including a service data adaptation protocol (SDAP) PDU that has an unciphered header. The unciphered SDAP header facilitates various optimizations in wireless communication.
Claims13
A method of wireless communication at a transmitting device, comprising:
- receiving one or more quality of service (QoS) flows from a protocol layer;
- mapping the one or more QoS flows to one or more data radio bearers (DRBs) established between the transmitting device and a receiving device;
- and
- transmitting a plurality of media access control (MAC) protocol data units (PDUs) corresponding to the one or more DRBs, each MAC protocol data unit (PDU) comprising:
- a packet data convergence protocol (PDCP) PDU comprising a PDCP header preceding an unciphered header of a partially ciphered PDCP payload,
- wherein the unciphered header includes a reflective QoS indicator (RQI) that provides a basis for setting up a mapping between a QoS flow and a DRB for an uplink (UL) transmission prior to completing a deciphering of the partially ciphered PDCP payload.
3 more elements
A method of wireless communication at a receiving device, comprising:
- receiving a media access control (MAC) protocol data unit (PDU) comprising a packet data convergence protocol (PDCP) PDU comprising a PDCP header and a partially ciphered PDCP payload;
- extracting a service data adaptation protocol (SDAP) PDU corresponding to one or more quality of service (QoS) flows, from the partially ciphered PDCP payload;
- reading an SDAP header of the SDAP PDU to obtain information on the one or more QoS flows prior to deciphering an SDAP payload of the SDAP PDU;
- determining a reflective QoS indicator (RQI) from the obtained information;
- and
- setting up a mapping, based on the RQI, between a QoS flow and a data radio bearer (DRB) for an uplink (UL) transmission prior to completing the deciphering of the SDAP payload.
3 more elements
An apparatus for wireless communication, comprising:
- a memory storing executable code;
- a transceiver configured for wireless communication;
- and
- a processor communicatively coupled with the memory and the transceiver,
- wherein the processor and the memory are configured to:
- receive a media access control (MAC) protocol data unit (PDU) comprising a packet data convergence protocol (PDCP) PDU comprising a PDCP header and a partially ciphered PDCP payload;
- extract a service data adaptation protocol (SDAP) PDU corresponding to one or more quality of service (QoS) flows from the partially ciphered PDCP payload;
- read an SDAP header of the SDAP PDU to obtain information on the one or more QoS flows prior to deciphering an SDAP payload of the SDAP PDU;
- determine a reflective QoS indicator (RQI) from the obtained information;
- and
- set up a mapping, based on the RQI, between a QoS flow and a data radio bearer (DRB) for an uplink (UL) transmission prior to completing the deciphering of the SDAP payload.
8 more elements
Dependencies are inferred from the claim text.