Method and device used in ue and base station for wireless communication

Patent metadata

Field	Value
Publication number	US-2022337366-A1
Application number	US-202217855817-A
Country	US
Kind code	A1
Filing date	Jul 1, 2022
Priority date	Apr 11, 2019
Publication date	Oct 20, 2022
Grant date	—

Abstract

The present disclosure provides method and device used in UE and base station for wireless communication. A UE receives a first signaling and then operates N radio signals respectively in N time-frequency resource blocks. The first signaling indicates N1 time-frequency resource blocks; the N1 time-frequency resource blocks respectively belong to N1 frequency sub-bands in frequency domain; any of the N time-frequency resource blocks is one of the N1 time-frequency resource blocks, N being a positive integer greater than 1 and no greater than N1; the N radio signals respectively comprise N first-type reference signals, and an antenna port for transmitting each of the N first-type reference signals is associated with a first antenna port.

First claim

What is claimed is:

1 . A User Equipment (UE) for wireless communications, comprising:
a first receiver, which receives a first signaling, the first signaling indicating N1 time-frequency resource blocks; and a first transceiver, which operates N radio signals respectively in N time-frequency resource blocks; wherein the N1 time-frequency resource blocks respectively belong to N1 frequency sub-bands in frequency domain, any two frequency sub-bands of the N1 frequency sub-bands being orthogonal, N1 being a positive integer greater than 1; any time-frequency resource block of the N time-frequency resource blocks is one of the N1 time-frequency resource blocks, N being a positive integer greater than 1 and no greater than the N1; the N radio signals respectively comprise N first-type reference signals, and an antenna port for transmitting each of the N first-type reference signals is associated with a first antenna port; a first target signal is any first-type reference signal of the N first-type reference signals, and frequency density of the first target signal is related to only a target time-frequency resource block of the N1 time-frequency resource blocks, the target time-frequency resource block being one of the N1 time-frequency resource blocks; the operating action is transmitting, or, the operating action is receiving; the first signaling is a Downlink Control Information (DCI) signaling; the N1 frequency sub-bands belong to a same Bandwidth Part (BWP); any two time-frequency resource blocks of the N1 time-frequency resource blocks comprise (a) same multicarrier symbol(s) in time domain; each of the N first-type reference signals comprises a Phase-Tracking Reference Signal (PTRS), and the number of transmission antenna port(s) for each of the N first-type reference signals is equal to 1; of the N1 time-frequency resource blocks only the target time-frequency resource block's bandwidth is used to determine the frequency density of the first target signal; the N radio signals respectively comprise N Demodulation Reference Signals (DMRSs), antenna ports for transmitting the N first-type reference signals are the same, and antenna ports for transmitting the N DMRSs are the same, the first antenna port being one antenna port for transmitting the N DMRSs; the phrase that an antenna port for transmitting each of the N first-type reference signals is associated with a first antenna port means that each subcarrier occupied by the antenna port for transmitting each of the N first-type reference signals belongs to a subcarrier group occupied by the N DMRSs, the subcarrier group comprising a positive integer number of sub carriers.

2 . The UE according to claim 1 , wherein the N radio signals respectively comprise N sub-signals, and the N sub-signals comprise a transmission of a first bit block; the first bit block comprises a Transport Block (TB).

3 . The UE according to claim 1 , wherein the N radio signals respectively comprise N sub-signals, and the N sub-signals respectively comprise N transmissions of a first bit block; the first bit block comprises a Transport Block (TB).

4 . The UE according to claim 1 , wherein the operating action being receiving; each of the N DMRSs is transmitted by P antenna ports, the first antenna port being one of the P antenna ports, P being a positive integer greater than 1, and the first antenna port is one of the P antenna ports that is of a lowest index.

5 . The UE according to claim 1 , wherein the first receiver also receives second information; wherein the second information indicates Q1 threshold(s), the Q1 threshold(s) being used to determine Q value sets; the Q value sets respectively correspond to Q frequency densities, Q1 being a positive integer, and Q being a positive integer greater than 1; a bandwidth of the target time-frequency resource block is used to determine the frequency density of the first target signal out of the Q frequency densities, and the bandwidth of the target time-frequency resource block belongs to only one value set of the Q value sets;
a first value set is one of the Q value sets to which the bandwidth of the target time-frequency resource block belongs, and the frequency density of the first target signal is one of the Q frequency densities that corresponds to the first value set; the second information comprises one or more Information Elements (IEs) in an RRC signaling; the Q1 is equal to 2 , each of the Q1 thresholds is a positive integer no greater than 276; the frequency density of the first target signal is equal to 2 or 4; a bandwidth of a given time-frequency resource block refers to a number of RBs comprised by the given time-frequency resource block in frequency domain.

6 . The UE according to claim 1 , wherein the target time-frequency resource block is one of the N time-frequency resource blocks that comprises time-frequency resources occupied by the first target signal, bandwidths of the N time-frequency resource blocks are respectively used to determine frequency densities of the N first-type reference signals.

7 . The UE according to claim 1 , wherein any of the N1 time-frequency resource blocks comprises a positive integer number of time-frequency resource unit(s), and any two time-frequency resource units of the N1 time-frequency resource blocks are orthogonal in frequency domain; a first time-frequency resource block is one of the N time-frequency resource blocks that comprises time-frequency resources occupied by the first target signal, and the first time-frequency resource block comprises M1 time-frequency resource unit(s), and the time-frequency resources occupied by the first target signal belong to only M2 time-frequency resource unit(s) of the M1 time-frequency resource unit(s); a number of the time-frequency resource unit(s) comprised by the target time-frequency resource block and the frequency density of the first target signal are used to determine the M2 time-frequency resource unit(s) out of the M1 time-frequency resource unit(s); M1 is a positive integer, and M2 is a positive integer no greater than the M1;
the time-frequency resource unit comprises an RB in frequency domain; any two of the N1 time-frequency resource blocks occupy a same time-domain resource; the first target signal occupies a positive integer number of RE(s) on a subcarrier in any time-frequency resource unit of the M2 time-frequency resource unit(s).

8 . A base station for wireless communications, comprising:
a second transmitter, which transmits a first signaling, the first signaling indicating N1 time-frequency resource blocks; and a second transceiver, which processes N radio signals respectively in N time-frequency resource blocks; wherein the N1 time-frequency resource blocks respectively belong to N1 frequency sub-bands in frequency domain, any two frequency sub-bands of the N1 frequency sub-bands being orthogonal, N1 being a positive integer greater than 1; any time-frequency resource block of the N time-frequency resource blocks is one of the N1 time-frequency resource blocks, N being a positive integer greater than 1 and no greater than the N1; the N radio signals respectively comprise N first-type reference signals, and an antenna port for transmitting each of the N first-type reference signals is associated with a first antenna port; a first target signal is any first-type reference signal of the N first-type reference signals, and frequency density of the first target signal is related to only a target time-frequency resource block of the N1 time-frequency resource blocks, the target time-frequency resource block being one of the N1 time-frequency resource blocks; the processing action is receiving, or, the processing action is transmitting; the first signaling is a Downli

Assignees

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

Inventors

• Wu Lu
• Zhang Xiaobo

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• 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

• H04L25/0202

  Channel estimation · CPC title

• H04L5/0051

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

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title