# US 12,120,671 B2 · Method and device for use in user device and base station used for wireless communication

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- Number: US 12,120,671 B2
- Document ID: US12120671B2
- Status: Granted
- Kind: B2
- Application number: 17/472,700
- Filed: 2021-09-13
- Published: 2022-02-10
- Granted: 2024-10-15
- Earliest claimed: 2019-03-14
- Assignees: Shanghai Langbo Communication Technology Company Limited
- Applicants: Lu Wu; Xiaobo Zhang
- Inventors: Lu Wu; Xiaobo Zhang
- Web page: https://patentgrep.com/patent/US12120671B2

## CPC

- H04W 72/1268: of uplink data flows
- H04L 1/18: Automatic repetition systems, e.g. Van Duuren systems
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B 7/0617: {for beam forming}
- H04L 5/0005: {Time-frequency}
- H04L 5/0023: {Time-frequency-space}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0078: {Timing of allocation}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## Abstract

The present disclosure provides a method and a device in a UE and a base station used for wireless communications. A UE receives first information, the first information is used to determine a first time-frequency resource and a first parameter group; receives a first signaling, the first signaling is used to determine a second time-frequency resource and a second parameter group; operates a first radio signal in the first time-frequency resource; and operates a second radio signal in the second time-frequency resource. A start time for transmitting the first signaling is later than a start time for transmitting the first information; the second parameter group is used to generate the second radio signal, a target parameter group is used to generate the first radio signal, and the target parameter group is the first parameter group or the second parameter group.

## Claims

### Claim 1

A User Equipment (UE) for wireless communications, comprising:
a first receiver, receiving first information, the first information being used to determine a first time-frequency resource and a first parameter group; receiving a first signaling, the first signaling being used to determine a second time-frequency resource and a second parameter group; and
a first transceiver, receiving a first radio signal in the first time-frequency resource, and receiving a second radio signal in the second time-frequency resource; wherein;
the first signaling is a DCI signaling, a start time for transmitting the first signaling is later than a start time for transmitting the first information;
the second parameter group is used to generate the second radio signal, a target parameter group is used to generate the first radio signal, and the target parameter group is the first parameter group or the second parameter group; the first parameter group comprises a TCI, and the second parameter group comprises a TCI;
a first condition set is used to determine the target parameter group out of the first parameter group and the second parameter group;
the first condition set comprises N conditions, N being a positive integer greater than 1;
a target time-domain resource set comprises time-domain resources occupied by the first time-frequency resource;
one of the N conditions comprises that a reference time-domain resource is non-orthogonal to the target time-domain resource set, wherein the reference time-domain resource comprises time-domain resources occupied by the second time-frequency resource; and
one of the N conditions comprises that a time gap between the first signaling and the second radio signal belongs to a first gap set.

### Claim 2 (depends on 1)

The UE according to claim 1, wherein when at least one condition in the first condition set is not satisfied, the target parameter group is the first parameter group; and
when all conditions in the first condition set are satisfied, the target parameter group is the second parameter group.

### Claim 3 (depends on 1)

The UE according to claim 1, wherein the first information carries a first identifier, the first signaling carries a second identifier, and the first identifier is different from the second identifier.

### Claim 4 (depends on 1)

The UE according to claim 1, wherein a first antenna port group comprises antenna port(s) for transmitting the first radio signal, and a second antenna port group comprises antenna port(s) for transmitting the second radio signal; the first condition set comprises that the first antenna port group is spatially correlated with the second antenna port group.

### Claim 5 (depends on 1)

The UE according to claim 1, wherein:
the target parameter group is the second parameter group, the first signaling is any of K signalings, each of the K signalings satisfies the first condition set, and the first signaling is one of the K signalings whose start time is latest to the first time-frequency resource; K is a positive integer greater than 1;
or, the first receiver also receives K−1 signaling(s); the first transceiver also receives K−1 radio signal(s) in K−1 time-frequency resource(s) respectively; wherein the target parameter group is the second parameter group, the first signaling is any of K signalings, each of the K signalings satisfies the first condition set, and the first signaling is one of the K signalings whose start time is latest to the first time-frequency resource; K is a positive integer greater than 1; a start time for transmitting each of the K signalings is later than a start time for transmitting the first information; the K signalings are respectively used to determine K time-frequency resources, and the K signalings are respectively used to determine K parameter groups; the second time-frequency resource is one of the K time-frequency resources, and the second parameter group is one of the K parameter groups; the K−1 signalings(s) is(are) composed of signaling(s) other than the first signaling in the K signalings, and the K−1 time-frequency resource(s) is(are respectively) time-frequency resource(s) in the K time-frequency resources determined by the K−1 signaling(s); K−1 parameter group(s) is(are respectively) parameter group(s) in the K parameter groups determine by the K−1 signaling(s), and the K−1 parameter group(s) is(are respectively) used to generate the K−1 radio signal(s).

### Claim 6

A base station for wireless communications, comprising:
a second transmitter, transmitting first information, the first information being used to determine a first time-frequency resource and a first parameter group; transmitting a first signaling, the first signaling being used to determine a second time-frequency resource and a second parameter group; and
a second transceiver, transmitting a first radio signal in the first time-frequency resource, and transmitting a second radio signal in the second time-frequency resource;
wherein the first signaling is a DCI signaling, a start time for transmitting the first signaling is later than a start time for transmitting the first information; the second parameter group is used to generate the second radio signal, a target parameter group is used to generate the first radio signal, and the target parameter group is the first parameter group or the second parameter group; the first parameter group comprises a TCI, and the second parameter group comprises a TCI; a first condition set is used to determine the target parameter group out of the first parameter group and the second parameter group;
the first condition set comprises N conditions, N being a positive integer greater than 1;
a target time-domain resource set comprises time-domain resources occupied by the first time-frequency resource, and
one of the N conditions comprises that a reference time-domain resource is non-orthogonal to the target time-domain resource set, wherein the reference time-domain resource comprises time-domain resources occupied by the second time-frequency resource;
one of the N conditions comprises that a time gap between the first signaling and the second radio signal belongs to a first gap set.

### Claim 7 (depends on 6)

The base station according to claim 6, wherein when at least one condition in the first condition set is not satisfied, the target parameter group is the first parameter group;
and when all conditions in the first condition set are satisfied, the target parameter group is the second parameter group;
or, the first information carries a first identifier, the first signaling carries a second identifier, and the first identifier is different from the second identifier.

### Claim 8 (depends on 6)

The base station according to claim 6, wherein a first antenna port group comprises antenna port(s) for transmitting the first radio signal, and a second antenna port group comprises antenna port(s) for transmitting the second radio signal; the first condition set comprises that the first antenna port group is spatially correlated with the second antenna port group.

### Claim 9

A method in a UE for wireless communications, comprising:
receiving first information, the first information being used to determine a first time-frequency resource and a first parameter group;
receiving a first signaling, the first signaling being used to determine a second time-frequency resource and a second parameter group;
receiving a first radio signal in the first time-frequency resource, and receiving a second radio signal in the second time-frequency resource;
wherein the first signaling is a DCI signaling, a start time for transmitting the first signaling is later than a start time for transmitting the first information; the second parameter group is used to generate the second radio signal, a target parameter group is used to generate the first radio signal, and the target parameter group is the first parameter group or the second parameter group;
the first parameter group comprises a TCI, and the second parameter group comprises a TCI;
a first condition set is used to determine the target parameter group out of the first parameter group and the second parameter group;
the first condition set comprises N conditions, N being a positive integer greater than 1;
a target time-domain resource set comprises time-domain resources occupied by the first time-frequency resource;
one of the N conditions comprises that a reference time-domain resource is non-orthogonal to the target time-domain resource set, wherein the reference time-domain resource comprises time-domain resources occupied by the second time-frequency resource; and
one of the N conditions comprises that a time gap between the first signaling and the second radio signal belongs to a first gap set.

### Claim 10 (depends on 9)

The method in a UE according to claim 9, wherein when at least one condition in the first condition set is not satisfied, the target parameter group is the first parameter group; and when all conditions in the first condition set are satisfied, the target parameter group is the second parameter group.

### Claim 11 (depends on 9)

The method in a UE according to claim 9, wherein the first information carries a first identifier, the first signaling carries a second identifier, and the first identifier is different from the second identifier.

### Claim 12 (depends on 9)

The method in a UE according to claim 9, wherein a first antenna port group comprises antenna port(s) for transmitting the first radio signal, and a second antenna port group comprises antenna port(s) for transmitting the second radio signal; the first condition set comprises that the first antenna port group is spatially correlated with the second antenna port group.

### Claim 13 (depends on 9)

The method in a UE according to claim 9, wherein the target parameter group is the second parameter group, the first signaling is any of K signalings, each of the K signalings satisfies the first condition set, and the first signaling is one of the K signalings whose start time is latest to the first time-frequency resource; K is a positive integer greater than 1;
or, the method further comprises: receiving K−1 signaling(s); and receiving K−1 radio signal(s) in K−1 time-frequency resource(s) respectively; wherein the target parameter group is the second parameter group, the first signaling is any of K signalings, each of the K signalings satisfies the first condition set, and the first signaling is one of the K signalings whose start time is latest to the first time-frequency resource; K is a positive integer greater than 1; A start time for transmitting each of the K signalings is later than a start time for transmitting the first information; the K signalings are respectively used to determine K time-frequency resources, and the K signalings are respectively used to determine K parameter groups; the second time-frequency resource is one of the K time-frequency resources, and the second parameter group is one of the K parameter groups; the K−1 signalings(s) is(are) composed of signaling(s) other than the first signaling in the K signalings, and the K−1 time-frequency resource(s) is(are respectively) time-frequency resource(s) in the K time-frequency resources determined by the K−1 signaling(s); K−1 parameter group(s) is(are respectively) parameter group(s) in the K parameter groups determine by the K−1 signaling(s), and the K−1 parameter group(s) is(are respectively) used to generate the K−1 radio signal(s).

### Claim 14

A method in a base station for wireless communications, comprising:
transmitting first information, the first information being used to determine a first time-frequency resource and a first parameter group;
transmitting a first signaling, the first signaling being used to determine a second time-frequency resource and a second parameter group;
transmitting a first radio signal in the first time-frequency resource, and transmitting a second radio signal in the second time-frequency resource;
wherein the first signaling is a DCI signaling, a start time for transmitting the first signaling is later than a start time for transmitting the first information; the second parameter group is used to generate the second radio signal, a target parameter group is used to generate the first radio signal, and the target parameter group is the first parameter group or the second parameter group;
the first parameter group comprises a TCI, and the second parameter group comprises a TCI;
a first condition set is used to determine the target parameter group out of the first parameter group and the second parameter group;
the first condition set comprises N conditions, N being a positive integer greater than 1;
a target time-domain resource set comprises time-domain resources occupied by the first time-frequency resource;
one of the N conditions comprises that a reference time-domain resource is non-orthogonal to the target time-domain resource set, wherein the reference time-domain resource comprises time-domain resources occupied by the second time-frequency resource; and
one of the N conditions comprises that a time gap between the first signaling and the second radio signal belongs to a first gap set.

### Claim 15 (depends on 14)

The method in a base station according to claim 14, wherein when at least one condition in the first condition set is not satisfied, the target parameter group is the first parameter group; and when all conditions in the first condition set are satisfied, the target parameter group is the second parameter group;
or, the first information carries a first identifier, the first signaling carries a second identifier, and the first identifier is different from the second identifier.

### Claim 16 (depends on 14)

The method in a base station according to claim 14, wherein a first antenna port group comprises antenna port(s) for transmitting the first radio signal, and a second antenna port group comprises antenna port(s) for transmitting the second radio signal; the first condition set comprises that the first antenna port group is spatially correlated with the second antenna port group.