Method and device used for relay wireless communication
The present application provides a method and device for sidelink wireless communications. A first node receives a first signaling via an air interface; as a response to receiving the first signaling, transmits a first radio signal, the first radio signal comprises a second signaling; receives a second data unit set via an air interface; herein, the second signaling indicates that a first data unit set is not received, and both the first data unit set and the second data unit set are transmitted through a first radio bearer; the second signaling is used to determine the second data unit set; a transmitter of the first signaling is non-co-located with a receiver of the first radio signal; the first data unit set comprises at least one data unit; the second data unit set comprises the first data unit set. The present application can effectively reduce data retransmission.
1 . A user equipment (UE) for wireless communications, the UE comprising:
a transceiver; and
a processor, wherein the transceiver and the processor are configured to:
receive a first signaling via an air interface,
transmit a first radio signal comprising a second signaling indicating that a first data unit set is not received,
clear a first identity from a first identity list,
monitor a physical-layer signaling through sidelink,
on a condition that the detected physical-layer signaling comprises one or more bits in any identity in the first identity list, perform channel decoding on a physical-layer channel scheduled by the detected physical-layer signaling,
on a condition that the detected physical-layer signaling does not comprise the one or more bits in any identity in the first identity list, channel decoding is not performed on the physical-layer channel scheduled by the detected physical-layer signaling, and
receive, via the air interface through a radio bearer, a second data unit set comprising the first data unit set, wherein a transmitter of the first signaling is non-co-located with a receiver of the first radio signal.
2 . The UE according to claim 1 ,
wherein the first identity identifies a transmitter of the first signaling, and wherein a number of bits comprised in the one or more bits is a positive integral multiple of 8.
3 . The UE according to claim 2 , wherein the transceiver and the processor are configured to:
transmitting via the air interface,
a first radio link failure indication wherein a receiver of the first radio link failure indication comprises a node identified by the first identity.
4 . The UE according to claim 2 , wherein the transceiver and the processor are configured to:
receive, via the air interface,
the first identity list comprising a plurality of identities, and
receiving, via the air interface, a first configuration comprising a first parameter set used to configure the radio bearer, wherein the first parameter set is applicable to the first data unit set and the second data unit set.
5 . The UE according to claim 2 , wherein the transceiver and the processor are configured to:
receive, via the air interface, third information
indicating a second identity list, wherein the second identity list does not comprise the first identity, and wherein an identity in the second identity list is used to identify the receiver of the first radio signal.
6 . The UE according to claim 1 , wherein the transceiver and the processor are configured to:
receive, via the air interface, a third data unit set
used to determine the first data unit set wherein a time for receiving the first signaling is not earlier than a time for receiving any data unit in the third data unit set.
7 . A user equipment (UE) for wireless communications, the UE comprising:
a transceiver; and
a processor, wherein the transceiver and the processor are configured to:
transmit, via an air interface, first signaling
to trigger a first radio signal,
receive the first radio signal comprising a second signaling indicating that a first data unit set is not received,
generate a second radio signal based on the second signaling,
transmit the second radio signal via the air interface,
receive, via the air interface through a radio bearer, a second data unit set comprising the first data unit set, wherein the UE is non-co-located with a receiver of the first radio signal,
clear a first identity from a first identity list,
monitor a physical-layer signaling through sidelink,
on a condition that a detected physical-layer signaling comprises one or more bits in any identity in the first identity list, perform channel decoding on a physical-layer channel scheduled by the detected physical-layer signaling, and
on a condition that the detected physical-layer signaling does not comprise one or more bits in any identity in the first identity list, channel decoding is not performed on the physical-layer channel scheduled by the detected physical-layer signaling.
8 . The UE according to claim 7 ,
wherein the first identity identifies a second UE, and wherein a number of bits comprised in the one or more bits is a positive integral multiple of 8.
9 . The UE according to claim 8 , wherein the transceiver and the processor are configured to:
receive a fifth radio signal,
recover second information from the fifth radio signal, wherein the second information comprises the first identity list and a first configuration, and wherein the first identity list comprises a plurality of identities,
generate sixth radio signal based on the second information,
transmit the sixth radio signal
wherein the first configuration comprises a first parameter set, wherein the first parameter set is used to configure the radio bearer, and wherein the first parameter set is applicable to the first data unit set and the second data unit set.
10 . The UE according to claim 7 , wherein the transceiver and the processor are configured to:
receive a third radio signal set,
recover a fourth data unit set from the third radio signal set, wherein the fourth data unit set comprises a third data unit set, and wherein the third data unit set is used to determine the first data unit set,
generate a fourth radio signal set based on the fourth data unit set, and
transmit the fourth radio signal set,
wherein a time for transmitting the first signaling is not earlier than a time for transmitting any radio signal in the fourth radio signal set.
11 . A user equipment (UE) for wireless communications, the UE comprising:
a transceiver; and
a processor, wherein the transceiver and the processor are configured to:
receive a second radio signal comprising a second signaling indicating that a first data unit set is not received,
transmit, via an air interface, a second data unit set comprising a first data unit set, and
transmit a first signaling to trigger transmitting the second radio signal, wherein a transmitter of the first signaling is non-co-located with a transmitter of the second radio signal,
clear a first identity from a first identity list,
monitor a physical-layer signaling through sidelink,
on a condition that a detected physical-layer signaling comprises one or more bits in any identity in the first identity list, perform channel decoding on a physical-layer channel scheduled by the detected physical-layer signaling,
on a condition that the detected physical-layer signaling does not comprise one or more bits in any identity in the first identity list, channel decoding is not performed on the physical-layer channel scheduled by the detected physical-layer signaling.
12 . The UE according to claim 11 ,
wherein the first identity identifies a transmitter of the first signaling, and wherein a number of bits comprised in the one or more bits is a positive integral multiple of 8.
13 . The UE according to claim 12 , wherein the transceiver and the processor are configured to:
transmit, via the air interface,
a second information comprising the first identity list and a first configuration, wherein the first identity list comprises a plurality of identities, and wherein the first configuration comprises a first parameter set, and the first parameter set is used to configure the radio bearer, and wherein the first parameter set is applicable to the first data unit set and the second data unit set.
14 . The UE according to claim 12 , wherein the transceiver and the processor are configured to:
transmitting, via the air interface,
third information indicating a second identity list, wherein the second identity list does not comprise the first identity, and wherein an identity in the second identity list is used to identify the transmitter of the first radio signal.
15 . A method in a user equipment (UE) for wireless communications, the method comprising:
receiving a first signaling via an air interface;
transmitting a first radio signal comprising a second signaling indicating that a first data unit set is not received;
clearing a first identity from a first identity list;
monitoring a physical-layer signaling through sidelink;
on a condition that the detected physical-layer signaling comprises one or more bits in any identity in the first identity list, performing channel decoding on a physical-layer channel scheduled by the detected physical-layer signaling;
on a condition that the detected physical-layer signaling does not comprise the one or more bits in any identity in the first identity list, channel decoding is not performed on the physical-layer channel scheduled by the detected physical-layer signaling; and
receiving, via the air interface through a radio bearer, a second data unit set comprising the first data unit set, wherein a transmitter of the first signaling is non-co-located with a receiver of the first radio signal.
16 . The method in the UE according to claim 15 ,
wherein the first identity identifies a transmitter of the first signaling, and wherein a number of bits comprised in the one or more bits is a positive integral multiple of 8.
17 . The method in the UE according to claim 16 , further comprising:
transmitting, via an air interface,
first radio link failure indication, wherein a receiver of the first radio link failure indication comprises a node identified by the first identity.
18 . The method in the UE according to claim 16 , comprising:
receiving, via the air interface,
the first identity list comprising a plurality identities; and
receiving, via the air interface, a first configuration comprising a first parameter set used to configure the radio bearer, wherein the first parameter set is applicable to the first data unit set and the second data unit set.
19 . The method in the UE according to claim 16 , further comprising:
receiving, via the air interface,
a third information indicating a second identity list, and wherein the second identity list does not comprise the first identity, and wherein an identity in the second identity list is used to identify the receiver of the first radio signal.
20 . The method in the UE according to claim 15 , comprising:
receiving, via the air interface,
a third data unit set used to determine the first data unit set, wherein a time for receiving the first signaling is not earlier than a time for receiving the third data unit set.