METHOD AND DEVICE FOR WIRELESS COMMUNICATION
A method and device for wireless communications, comprising receiving a first signaling, and the first signaling indicating a first uplink grant; preferentially transmitting a latter of a first PDU and a second PDU on resources of the first uplink grant indicated by the first signaling; wherein both the first PDU and the second PDU are PDUs of RLC layer; the second PDU later than the first PDU available for a transmission of MAC layer; and the meaning of the phrase of preferentially transmitting a latter of a first PDU and a second PDU comprises: in an initial transmission of the first PDU and an initial transmission of the second PDU, prioritizing the initial transmission of the second PDU; the first PDU and the second PDU use a same logical channel. The present application facilitates a better transmission of a first PDU and a second PDU through a first signaling.
1 . A first node for wireless communications, comprising:
a first receiver, receiving a first signaling, the first signaling indicating a first uplink grant; and
a first transmitter, preferentially transmitting a latter of a first protocol data unit (PDU) and a second PDU on resources of the first uplink grant indicated by the first signaling;
wherein both the first PDU and the second PDU are PDUs of radio link control (RLC) layer; the second PDU later than the first PDU available for a transmission of Medium Access Control (MAC) layer; and the meaning of the phrase of preferentially transmitting a latter of a first PDU and a second PDU comprises: in an initial transmission of the first PDU and an initial transmission of the second PDU, prioritizing the initial transmission of the second PDU; the first PDU and the second PDU use a same logical channel.
2 . The first node according to claim 1 , wherein
both the first PDU and the second PDU are first-type PDUs, and multiple first-type PDUs carry one unit of information generated at the application level.
3 . The first node according to claim 2 , wherein
the first PDU carries one unit of information generated at the application level; the second PDU carries another unit of information generated at the application level.
4 . The first node according to claim 1 , wherein
the first PDU and the second PDU are both associated with a first delay budget, and the first delay budget is used to indicate delay requirements; the first PDU and the second PDU are used to carry a same unit of information generated at the application level.
5 . The first node according to claim 2 , wherein
the first PDU and the second PDU are both associated with a first delay budget, and the first delay budget is used to indicate delay requirements; the first PDU and the second PDU are used to carry a same unit of information generated at the application level.
6 . The first node according to claim 3 , wherein
the first PDU and the second PDU are both associated with a first delay budget, and the first delay budget is used to indicate delay requirements; the first PDU and the second PDU are used to carry a same unit of information generated at the application level.
7 . The first node according to claim 1 , wherein
both the first PDU and the second PDU are used to carry a same unit of information generated at the application level, and only a former of the first PDU and the second PDU is used to determine a priority of a PDU carrying a same unit of information generated at the application level.
8 . The first node according to claim 1 , wherein
only a former of the first PDU and the second PDU is used to determine a priority of the first logical channel or a volume of preferentially transmitted data of the first logical channel.
9 . The first node according to claim 1 , wherein
the first transmitter, selecting at least first logical channel for the first uplink grant; allocating resources to data of each logical channel in the at least first logical channel; transmitting at least one MAC PDU, and the at least one MAC PDU comprising the data of each logical channel in the at least first logical channel;
wherein at least first logical channel is selected for the first uplink grant comprises: whether a logical channel is selected depends on whether data available for transmission of the logical channel comprises a first-type PDU; multiple first-type PDUs carry one unit of information generated at the application level; the first signaling is used to determine that the first uplink grant is applicable to a first-type PDU; the first logical channel is used to carry the first PDU and the second PDU.
10 . The first node according to claim 2 , wherein
the first transmitter, selecting at least first logical channel for the first uplink grant; allocating resources to data of each logical channel in the at least first logical channel; transmitting at least one MAC PDU, and the at least one MAC PDU comprising the data of each logical channel in the at least first logical channel;
wherein at least first logical channel is selected for the first uplink grant comprises: whether a logical channel is selected depends on whether data available for transmission of the logical channel comprises a first-type PDU;
multiple first-type PDUs carry one unit of information generated at the application level; the first signaling is used to determine that the first uplink grant is applicable to a first-type PDU; the first logical channel is used to carry the first PDU and the second PDU.
11 . The first node according to claim 3 , wherein
the first transmitter, selecting at least first logical channel for the first uplink grant; allocating resources to data of each logical channel in the at least first logical channel; transmitting at least one MAC PDU, and the at least one MAC PDU comprising the data of each logical channel in the at least first logical channel;
wherein at least first logical channel is selected for the first uplink grant comprises: whether a logical channel is selected depends on whether data available for transmission of the logical channel comprises a first-type PDU; multiple first-type PDUs carry one unit of information generated at the application level; the first signaling is used to determine that the first uplink grant is applicable to a first-type PDU; the first logical channel is used to carry the first PDU and the second PDU.
12 . The first node according to claim 1 , wherein
the first PDU and the second PDU are generated by a same RLC entity.
13 . The first node according to claim 1 , wherein
the first PDU and the second PDU are generated by different RLC entities.
14 . The first node according to claim 12 , wherein
the first PDU and the second PDU are generated by a same PDCP entity.
15 . The first node according to claim 13 , wherein
the first PDU and the second PDU are generated by a same PDCP entity.
16 . The first node according to claim 14 , wherein
the first PDU and the second PDU belong to different QoS flows.
17 . The first node according to claim 15 , wherein
the first PDU and the second PDU belong to different QoS flows.
18 . The first node according to claim 1 , wherein
a priority of the first PDU is not lower than a priority of the second PDU.
19 . A second node for wireless communications, comprising:
a second transmitter, transmitting a first signaling, the first signaling indicating a first uplink grant;
wherein a latter of a first PDU and a second PDU is preferentially transmitted on resources of the first uplink grant indicated by the first signaling; both the first PDU and the second PDU are PDUs of RLC layer; the second PDU later than the first PDU available for a transmission of MAC layer; and the meaning of the phrase that a latter of a first PDU and a second PDU is preferentially transmitted on resources of the first uplink grant indicated by the first signaling comprises: in an initial transmission of the first PDU and an initial transmission of the second PDU, prioritizing the initial transmission of the second PDU; the first PDU and the second PDU use a same logical channel.
20 . A method in a first node for wireless communications, comprising:
receiving a first signaling, the first signaling indicating a first uplink grant; and
preferentially transmitting a latter of a first PDU and a second PDU on resources of the first uplink grant indicated by the first signaling;
wherein both the first PDU and the second PDU are PDUs of RLC layer; the second PDU later than the first PDU available for a transmission of MAC layer; and the meaning of the phrase of preferentially transmitting a latter of a first PDU and a second PDU comprises: in an initial transmission of the first PDU and an initial transmission of the second PDU, prioritizing the initial transmission of the second PDU; the first PDU and the second PDU use a same logical channel.