Method and device in nodes used for wireless communication

Patent metadata

Field	Value
Publication number	US-2022330043-A1
Application number	US-202217849683-A
Country	US
Kind code	A1
Filing date	Jun 26, 2022
Priority date	Dec 27, 2019
Publication date	Oct 13, 2022
Grant date	—

Abstract

The present application provides a method and device in a node used for wireless communications. A first node receives a first information block and a second information block; receives a first reference signal; and receives a first signal. The first information block is used to trigger a transmission of the first reference signal, a time interval between the first information block and the first reference signal is less than a first reference interval, and the first reference interval is a positive integer; the second information block is used to determine the first signal; the first reference signal and the first signal comprise a same multi-carrier symbol in time domain; the second information block is used to determine a first index, and the first index is used to determine whether a QCL parameter for receiving the first reference signal is related to a QCL parameter for receiving the first signal.

First claim

What is claimed is:

1 . A first node for wireless communications, comprising:
a first receiver, receiving a first information block and a second information block; receiving a first reference signal; and receiving a first signal; wherein the first information block is used to trigger a transmission of the first reference signal, a time interval between the first information block and the first reference signal is less than a first reference interval, and the first reference interval is a positive integer; the second information block is used to determine the first signal; the first reference signal and the first signal comprise a same multi-carrier symbol in time domain; the second information block is used to determine a first index, the first index is a non-negative integer, and the first index is used to determine whether a QCL parameter for receiving the first reference signal is related to a QCL parameter for receiving the first signal.

2 . The first node according to claim 1 , wherein the first receiver receives a third information block;
wherein a time interval between the second information block and the first signal is not less than a second reference interval, and the QCL parameter for receiving the first signal is indicated by the second information block; the first information block is used to determine a target index, and the target index is a non-negative integer; whether the target index is the same as the first index is used to determine whether the QCL parameter for receiving the first reference signal is related to the QCL parameter for receiving the first signal; the third information block is used to indicate N time-frequency resource groups, and each of the N time-frequency resource groups corresponds to an index in a first index set; time-frequency resources occupied by the second information block belong to a first time-frequency resource group in the N time-frequency resource groups, and the first index is an index corresponding to the first time-frequency resource group in the first index set; time-frequency resources occupied by the first information block belong to a target time-frequency resource group in the N time-frequency resource groups, and the target index is an index corresponding to the target time-frequency resource group in the first index set; N is a positive integer greater than 1, the first time-frequency resource group is one of the N time-frequency resource groups, the target time-frequency resource group is one of the N time-frequency resource groups, the first index set comprises multiple indexes, and any index in the first index set is a non-negative integer.

3 . The first node according to claim 2 , wherein when the target index is the same as the first index, the QCL parameter for receiving the first reference signal is related to the QCL parameter for receiving the first signal; when the target index is different from the first index, a target TCI state is used to indicate the QCL parameter for receiving the first reference signal; the N time-frequency resource groups respectively correspond to N TCI states, the target TCI state is one of the N TCI states corresponding to the first target time-frequency resource group, the first target time-frequency resource group is a time-frequency resource group with a lowest index satisfying a first condition in the N time-frequency resource groups, and the first condition comprises that the corresponding index in the first index set is the same as the target index;
or, the first receiver receives M−1 information block(s); the first receiver receives M−1 signal(s); wherein the first signal is any of M signals, the M−1 signal(s) is(are) signal(s) other than the first signal in the M signals, M being a positive integer greater than 1; there exists a same multi-carrier symbol belonging to time-domain resources occupied by the first reference signal and time-domain resources occupied by each of the M signals; M information blocks comprise the M−1 information block(s) and the second information block, and the M information blocks are respectively used to determine the M signals; the first signal is any of the M signals; M indexes are respectively indexes corresponding to time-frequency resources occupied by the M information blocks in the first index set, the first index is one of the M indexes corresponding to the second information block; the target index is the same as a first given index in the M indexes, the first given index corresponds to a first given information block in the M information blocks, the first given information block is used to determine a first given signal in the M signals, and the QCL parameter for receiving the first reference signal is related to a QCL parameter for receiving the first given signal.

4 . The first node according to claim 1 , wherein the first receiver receives M−1 signal(s); wherein the first signal is any of M signals, the M−1 signal(s) is(are) signal(s) other than the first signal in the M signals, M being a positive integer greater than 1; there exists a same multi-carrier symbol belonging to time-domain resources occupied by the first reference signal and time-domain resources occupied by each of the M signals;
the second information block is used to indicate the M signals; M indexes respectively indicate QCL parameters for receiving the M signals, and the first index is one of the M indexes; a position of the first index in the M indexes is used to determine whether the QCL parameter for receiving the first reference signal is related to the QCL parameter for receiving the first signal.

5 . The first node according to claim 4 , wherein the M indexes are respectively indexes of M TCI states; the second information block comprises a first field, the first field comprised in the second information block is used to indicate a first TCI state group out of T TCI state groups, and T is a positive integer greater than 1; when a time interval between the second information block and the first signal is not less than a second reference interval, the first TCI state group indicates the M indexes;
or, the M indexes are respectively indexes of M TCI states; the second information block comprises a first field, the first field comprised in the second information block is used to indicate a first TCI state group out of T TCI state groups, and T is a positive integer greater than 1; the T TCI state groups respectively correspond to T code-points, and the T code-points are respectively 0, 1, . . . , T−1; a time interval between the second information block and the first signal is less than a second reference interval, there exists a number of TCI states comprised in one of the T TCI state groups being equal to the M, a second TCI state group is a TCI state group with a lowest code-point satisfying a third condition in the T TCI state groups, the second TCI state group indicates the M indexes, and the third condition comprises that a number of comprised TCI state(s) is equal to the M.

6 . A second node for wireless communications, comprising:
a second transmitter, transmitting a first information block and a second information block; transmitting a first reference signal; and transmitting a first signal; wherein the first information block is used to trigger a transmission of the first reference signal, a time interval between the first information block and the first reference signal is less than a first reference interval, and the first reference interval is a positive integer; the second information block is used to determine the first signal; the first reference signal and the first signal comprise a same multi-carrier symbol in time domain; the second information block is used to determine a first index, the first index is a non-negative integer, and the first index is used to deter

Assignees

• Wu Lu
• Zhang Xiaobo
• Shanghai Langbo Comm Tech Co Ltd

Inventors

• Wu Lu
• Zhang Xiaobo

Classifications

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W16/28 Primary

  using beam steering · CPC title