METHOD AND APPARATUS FOR MULTIPLEXING MULTIPLE PROTOCOL DATA UNITS (PDUs) IN A MEDIUM ACCESS CONTROL (MAC) SERVICE DATA UNIT (SDU)
Disclosed in the present application are a method and apparatus used in a communication node for wireless communication. A communication node operates a first MAC PDU on a first cell, wherein the operation is reception, or the operation is transmission; the first MAC PDU comprises a first MAC subPDU, the first MAC subPDU comprises a first MAC subheader and a first MAC SDU; the first MAC SDU comprises at least some bits of a first PDU and at least some bits of a second PDU; the first PDU and the second PDU belong to the same protocol layer, or the first PDU and the second PDU belong to different radio bearers. The technical solution of the present application can improve transmission performance.
1 . A user equipment (UE) for wireless communication, the UE comprising:
a transceiver; and
a processor, wherein the transceiver and the processor are configured to:
transmit or receive a first media access control protocol data unit (MAC PDU) on a first cell, wherein:
the first MAC PDU comprises a first MAC subPDU,
the first MAC subPDU comprises a first MAC subheader and a first MAC service data unit (SDU).
the first MAC SDU comprises at least some bits of a first PDU and at least some bits of a second PDU, and
the first PDU and the second PDU belong to the same protocol layer, or the first PDU and the second PDU belong to different radio bearers.
2 . The UE according to claim 1 , wherein the transceiver and the processor are further configured to:
process a target PDU at a first protocol layer,
wherein the target PDU comprises at least some bits of the first PDU and at least some bits of the second PDU, and
wherein the first protocol layer is located below a service data adaptation protocol (SDAP) sublayer, and the first protocol layer is located above an MAC sublayer, and
wherein the first MAC PDU carries at least some bits of the target PDU.
3 . The UE according to claim 1 , wherein the transceiver and the processor are further configured to:
process a target PDU at a first protocol layer,
wherein the target PDU comprises at least some bits of the first PDU, and
wherein the second PDU comprises at least some bits of the target PDU, and
wherein a protocol layer to which the first PDU belongs is located above the first protocol layer, and
wherein a protocol layer to which the second PDU belongs is located below the first protocol layer, and
wherein the first PDU and the second PDU belong to different radio bearers.
4 . The UE according to claim 1 , wherein the second PDU comprises at least some bits in the first PDU, and wherein the protocol layer to which the first PDU belongs is not higher than the protocol layer to which the second PDU belongs.
5 . The UE according to claim 1 , wherein the second PDU does not depend on the first PDU, and the first PDU does not depend on the second PDU.
6 . A base station for wireless communication, the base station comprising:
a transceiver; and
a processor, wherein the transceiver and the processor are configured to:
transmit or receive a first media access control protocol data unit (MAC PDU) on a first cell;
wherein:
the first MAC PDU comprises a first MAC subPDU,
the first MAC subPDU comprises a first MAC subheader and a first MAC service data unit (SDU),
the first MAC SDU comprises at least some bits of a first PDU and at least some bits of a second PDU, and
the first PDU and the second PDU belong to the same protocol layer, or the first PDU and the second PDU belong to different radio bearers.
7 . A method used in a user equipment (UE) for wireless communication, the method comprising:
transmitting or receiving first media access control protocol data unit (MAC PDU) on a first cell,
wherein:
the first MAC PDU comprises a first MAC subPDU,
the first MAC subPDU comprises a first MAC subheader and a first MAC service data unit (SDU),
the first MAC SDU comprises at least some bits of a first PDU and at least some bits of a second PDU, and
the first PDU and the second PDU belong to the same protocol layer, or the first PDU and the second PDU belong to different radio bearers.
8 . A method used in a base station for wireless communication, the method comprising:
transmitting or receiving a first media access control protocol data unit (MAC PDU) on a first cell,
wherein:
the first MAC PDU comprises a first MAC subPDU,
the first MAC subPDU comprises a first MAC subheader and a first MAC service data unit (SDU),
the first MAC SDU comprises at least some bits of a first PDU and at least some bits of a second PDU, and
the first PDU and the second PDU belong to the same protocol layer, or the first PDU and the second PDU belong to different radio bearers.
9 . The method according to claim 7 , further comprising:
processing a target PDU at a first protocol layer,
wherein the target PDU comprises at least some bits of the first PDU and at least some bits of the second PDU,
wherein the first protocol layer is located below a service data adaptation protocol (SDAP) sublayer, and the first protocol layer is located above an MAC sublayer, and
wherein the first MAC PDU carries at least some bits of the target PDU.
10 . The method according to claim 7 , further comprising:
processing a target PDU at a first protocol layer,
wherein the target PDU comprises at least some bits of the first PDU, and
wherein the second PDU comprises at least some bits of the target PDU, and
wherein a protocol layer to which the first PDU belongs is located above the first protocol layer, and
wherein a protocol layer to which the second PDU belongs is located below the first protocol layer, and
wherein the first PDU and the second PDU belong to different radio bearers.
11 . The method according to claim 7 , wherein the second PDU comprises at least some bits in the first PDU, and wherein the protocol layer to which the first PDU belongs is not higher than the protocol layer to which the second PDU belongs.
12 . The method according to claim 7 , wherein the second PDU does not depend on the first PDU, and the first PDU does not depend on the second PDU.