METHOD AND DEVICE USED FOR WIRELESS COMMUNICATION
The present application provides a method and a device used for wireless communications. A first node receives a first RS; determines first reference quality, where the first reference quality depends on non-codebook precoding information; receives a second RS, where the second RS is linked with the first RS; transmits a first message, the first message depends on a comparison between received quality of the second RS and the first reference quality; wherein both the first reference quality and the non-codebook precoding information depend on a measurement for the first RS. The present application can ensure the performance monitoring of channel information and avoid consuming excessive radio overhead while providing good compatibility.
1 . A first node for wireless communications, comprising:
a first receiver, receiving a first RS; determining first reference quality, where the first reference quality depending on non-codebook precoding information; receiving a second RS, where the second RS being linked with the first RS; and
a first transmitter, transmitting a first message, the first message depending on a comparison between received quality of the second RS and the first reference quality;
wherein both the first reference quality and the non-codebook precoding information depend on a measurement for the first RS.
2 . The first node according to claim 1 , comprising:
the first receiver, receiving a second message;
wherein the second message is used to determine at least one of the following:
a multi-antenna transmission of the second RS is codebook-based;
the second message is used to indicate a first precoding matrix, the first precoding matrix is codebook-based, and the first precoding matrix is used for the multi-antenna transmission of the second RS;
the second RS is linked with the first RS.
3 . The first node according to claim 1 , wherein as a response to a first condition being satisfied, the first message is triggered;
wherein the first condition depends on the comparison between the received quality of the second RS and the first reference quality.
4 . The first node according to claim 1 , comprising:
the first transmitter, transmitting the non-codebook precoding information.
5 . The first node according to claim 1 , wherein the generation of the first reference quality is based on: a wireless transmission corresponding to the first reference quality is adjusted for a first offset compared to transmit power of the first RS; the first offset is linked with the second RS.
6 . The first node according to claim 1 , wherein the first reference quality depends on at least one of time-domain resources occupied by the second RS or frequency-domain resources occupied by the second RS.
7 . The first node according to claim 1 , wherein a calculation of the first reference quality is conditional on a number of antenna port(s) of the second RS.
8 . A second node for wireless communications, comprising:
a second transmitter, transmitting a first RS; transmitting a second RS, where the second RS being linked with the first RS; and
a second receiver, receiving a first message, the first message depending on a comparison between received quality of the second RS and first reference quality;
wherein the first reference quality depends on non-codebook precoding information; both the first reference quality and the non-codebook precoding information depend on a measurement for the first RS.
9 . The second node according to claim 8 , comprising:
the second transmitter, transmitting a second message; wherein the second message is used to determine at least one of the following:
a multi-antenna transmission of the second RS is codebook-based;
the second message is used to indicate a first precoding matrix, the first precoding matrix is codebook-based, and the first precoding matrix is used for the multi-antenna transmission of the second RS;
the second RS is linked with the first RS.
10 . The second node according to claim 8 , comprising:
as a response to a first condition being met, the first message is triggered; wherein the first condition depends on the comparison between the received quality of the second RS and the first reference quality.
11 . The second node according to claim 8 , comprising:
the second receiver, receiving the non-codebook precoding information.
12 . The second node according to claim 8 , comprising:
the generation of the first reference quality is based on: a wireless transmission corresponding to the first reference quality is adjusted for a first offset compared to transmit power of the first RS; the first offset is linked with the second RS.
13 . The second node according to claim 8 , comprising:
the first reference quality depends on at least one of time-domain resources occupied by the second RS or frequency-domain resources occupied by the second RS.
14 . A method in a first node for wireless communications, comprising:
receiving a first RS; determining first reference quality, where the first reference quality depending on non-codebook precoding information; receiving a second RS, where the second RS being linked with the first RS; and
transmitting a first message, the first message depending on a comparison between received quality of the second RS and the first reference quality;
wherein both the first reference quality and the non-codebook precoding information depend on a measurement for the first RS.
15 . The method in a first node according to claim 14 , comprising:
receiving a second message; and
wherein the second message is used to determine at least one of the following:
a multi-antenna transmission of the second RS is codebook-based;
the second message is used to indicate a first precoding matrix, the first precoding matrix is codebook-based, and the first precoding matrix is used for the multi-antenna transmission of the second RS;
the second RS is linked with the first RS.
16 . The method in a first node according to claim 14 , wherein as a response to a first condition being satisfied, the first message is triggered;
wherein the first condition depends on the comparison between the received quality of the second RS and the first reference quality.
17 . The method in a first node according to claim 14 , comprising:
transmitting the non-codebook precoding information.
18 . The method in a first node according to claim 14 , wherein the generation of the first reference quality is based on: a wireless transmission corresponding to the first reference quality is adjusted for a first offset compared to transmit power of the first RS; the first offset is linked with the second RS.
19 . The method in a first node according to claim 14 , wherein the first reference quality depends on at least one of time-domain resources occupied by the second RS or frequency-domain resources occupied by the second RS.
20 . The method in a first node according to claim 14 , wherein a calculation of the first reference quality is conditional on a number of antenna port(s) of the second RS.