Method and apparatus for uplink data transmission
The present application discloses a method and a device for wireless communications. A first node receives a first data unit in a first protocol layer, the first protocol layer being a layer above a physical layer; receives a first signaling, the first signaling indicating an initial transmission; and transmits a first radio signal, the first radio signal carrying a first MAC PDU, the first signaling being used to schedule the first radio signal; herein, a first time length is equal to a time interval length between a reception of the first data unit and a transmission of the first radio signal, and whether the first MAC PDU comprises at least partial bits in the first data unit is related to a relative magnitude of the first time length and a first time threshold. The present application can enhance the system capacity and reduce the UE's power consumption.
1 . A User Equipment (UE) for wireless communications, the UE comprising:
a processor and a receiver configured to receive a first data unit in a first protocol layer, the first protocol layer being a layer above a physical layer;
the processor and the receiver configured to receive a first signaling, the first signaling indicating an initial transmission; and
the processor and a transmitter configured to transmit a first radio signal, the first radio signal carrying a first Medium Access Control (MAC) Protocol Data Unit (PDU), the first signaling scheduling the first radio signal,
wherein a first time length is equal to a time interval length between a reception of the first data unit and a transmission of the first radio signal, and whether the first MAC PDU comprises at least a portion of bits in the first data unit is related to a relative magnitude of the first time length and a first time threshold, and wherein the first time threshold indicates a longest time interval from the first data unit being received in the first protocol layer to the first data unit being transmitted.
2 . The UE according to claim 1 , wherein: when the first time length is smaller than the first time threshold, the first MAC PDU comprises the at least the portion of bits in the first data unit; and when the first time length is larger than the first time threshold, the first MAC PDU does not comprise the at least the portion of bits in the first data unit.
3 . The UE according to claim 1 , wherein:
the processor and the first transmitter are further configured to transmit a first indication to the first protocol layer, the first indication indicating time-domain resources occupied by the first radio signal;
wherein the first indication is used to determine the first time length.
4 . The UE according to claim 1 , wherein:
the processor and the transmitter are further configured to discard the first data unit in the first protocol layer when the first time length is larger than the first time threshold.
5 . The UE according to claim 1 , wherein:
the processor and the transmitter are further configured to, when the at least the portion of bits in the first data unit have been multiplexed in the first MAC PDU, reassemble the first MAC PDU in the first protocol layer,
wherein the first protocol layer is a MAC sublayer, and wherein the first time length is larger than the first time threshold.
6 . The UE according to claim 1 , wherein when the first signaling schedules a second radio signal, time-domain resources occupied by the first radio signal are no later than time-domain resources occupied by the second radio signal.
7 . The UE according to claim 1 , wherein:
the processor and the receiver are further configured to receive a second signaling, the second signaling indicating a second time threshold;
wherein the second time threshold indicates a longest residing time of a first Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) in a PDCP sublayer, the first PDCP SDU being used to generate the first data unit; the second time threshold and a protocol processing time are used to determine the first time threshold, where the first protocol layer is a Radio Link Control (RLC) sublayer or a MAC sublayer.
8 . A base station, comprising:
a processor and a transmitter configured to transmit a first signaling, the first signaling indicating an initial transmission; and
the processor and a second receiver configured to receive a first radio signal, the first radio signal carrying a first Medium Access Control (MAC) Protocol Data Unit (PDU), the first signaling scheduling the first radio signal,
wherein a first data unit is received in a first protocol layer, the first protocol layer being a layer above a physical layer, wherein a first time length is equal to a time interval length between a reception of the first data unit and a transmission of the first radio signal, and whether the first MAC PDU comprises at least a portion of bits in the first data unit is related to a relative magnitude of the first time length and a first time threshold, and wherein the first time threshold indicates a longest time interval from the first data unit being received in the first protocol layer to the first data unit being transmitted.
9 . The base station according to claim 8 , wherein: when the first time length is smaller than the first time threshold, the first MAC PDU comprises the at least the portion of bits in the first data unit; when the first time length is larger than the first time threshold, the first MAC PDU does not comprise the at least the portion of bits in the first data unit.
10 . The base station according to claim 8 , that the processor and the transmitter configured to transmit a first indication to the first protocol layer, the first indication indicating time-domain resources occupied by the first radio signal,
wherein the first indication is used to determine the first time length.
11 . The base station according to claim 8 , wherein when the first time length is larger than the first time threshold, the first data unit is discarded in the first protocol layer.
12 . The base station according to claim 8 , wherein: when the at least the portion of bits in the first data unit have been multiplexed in the first MAC PDU, the first MAC PDU is reassembled in the first protocol layer,
wherein the first protocol layer is a MAC sublayer, and wherein the first time length is larger than the first time threshold.
13 . The base station according to claim 8 , the processor and the transmitter further configured to transmit a second signaling, the second signaling indicating a second time threshold,
wherein the second time threshold indicates a longest residing time of a first Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) in a PDCP sublayer, the first PDCP SDU being used to generate the first data unit; the second time threshold and a protocol processing time are used to determine the first time threshold, wherein the first protocol layer is a Radio Link Control (RLC) sublayer or a MAC sublayer.
14 . A method performed by a User Equipment (UE), the method comprising:
receiving a first data unit in a first protocol layer, the first protocol layer being a layer above a physical layer;
receiving a first signaling, the first signaling indicating an initial transmission; and
transmitting a first radio signal, the first radio signal carrying a first Medium Access Control (MAC) Protocol Data Unit (PDU), the first signaling scheduling the first radio signal,
wherein a first time length is equal to a time interval length between a reception of the first data unit and a transmission of the first radio signal, and whether the first MAC PDU comprises at least a portion of bits in the first data unit is related to a relative magnitude of the first time length and a first time threshold, and wherein the first time threshold indicates a longest time interval from the first data unit being received in the first protocol layer to the first data unit being transmitted.
15 . The method according to claim 14 , wherein: when the first time length is smaller than the first time threshold, the first MAC PDU comprises the at least the portion of bits in the first data unit; when the first time length is larger than the first time threshold, the first MAC PDU does not comprise the at least the portion of bits in the first data unit.
16 . The method according to claim 14 , further comprising:
transmitting a first indication to the first protocol layer, the first indication indicating time-domain resources occupied by the first radio signal;
wherein the first indication is used to determine the first time length.
17 . The method according to claim 14 , further comprising:
discarding the first data unit in the first protocol layer when the first time length is larger than the first time threshold.
18 . The method according to claim 14 , further comprising:
when the at least the portion of bits in the first data unit have been multiplexed in the first MAC PDU, reassembling the first MAC PDU in the first protocol layer,
wherein the first protocol layer is a MAC sublayer, and wherein the first time length is larger than the first time threshold.
19 . The method according to claim 14 , wherein: when the first signaling schedules a second radio signal, time-domain resources occupied by the first radio signal are no later than time-domain resources occupied by the second radio signal.
20 . The method according to claim 14 , further comprising:
receiving a second signaling, the second signaling indicating a second time threshold;
wherein the second time threshold indicates a longest residing time of a first Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) in a PDCP sublayer, the first PDCP SDU being used to generate the first data unit, wherein the second time threshold and a protocol processing time are used to determine the first time threshold, and wherein the first protocol layer is a Radio Link Control (RLC) sublayer or a MAC sublayer.