# US 11,445,496 B2 · Resource determining method and apparatus

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- Number: US 11,445,496 B2
- Document ID: US11445496B2
- Status: Granted
- Kind: B2
- Application number: 17/037,154
- Filed: 2020-09-29
- Published: 2021-01-14
- Granted: 2022-09-13
- Earliest claimed: 2018-03-30
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Yafei Wang; Xiaojun Ma; Zhang Zhang; Chi Zhang
- Web page: https://patentgrep.com/patent/US11445496B2

## CPC

- H04W 72/044: based on the type of the allocated resource
- H04W 76/14: Direct-mode setup
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 92/18: between terminal devices
- 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)

## Abstract

This application discloses a resource determining method and an apparatus. In the method, a terminal obtains first indication information and second indication information, where the first indication information is used to indicate a slot in which the terminal sends or receives an SA, and the second indication information is used to indicate a slot format of the slot; and the terminal determines SA resources in the slot based on the slot format.

## Claims

### Claim 1

A resource determining method, comprising:
obtaining, by a terminal, first indication information and second indication information, wherein the first indication information is used to indicate a slot in which the terminal sends or receives a scheduling assignment (SA), and the second indication information is used to indicate a slot format of the slot; and
determining, by the terminal, SA resources in the slot based on the slot format.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the determining, by the terminal, SA resources in the slot based on the slot format comprises:
determining, by the terminal, SA frequency domain resources in the slot based on the slot format.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the determining, by the terminal, SA frequency domain resources in the slot based on the slot format comprises:
determining, by the terminal, a first quantity based on the slot format, wherein the first quantity is a quantity of resource blocks (RBs) occupied by the SA in a frequency domain; and
determining, by the terminal, the SA frequency domain resources in the slot based on the first quantity.

### Claim 4 (depends on 3)

The method according to claim 3, wherein the determining, by the terminal, a first quantity based on the slot format comprises:
determining, by the terminal, a second quantity based on the slot format, wherein the second quantity is a quantity of uplink symbols in the slot; and
determining, by the terminal, the first quantity based on a mapping relationship between the second quantity and the first quantity.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the determining, by the terminal, the first quantity based on a mapping relationship between the second quantity and the first quantity comprises:
when the second quantity is greater than or equal to a preset threshold value, determining the first quantity according to the following formula:
y
=
⌊
A
x
⌋
,
wherein
x represents the second quantity, y represents the first quantity, A is a constant, and └ ┘ represents rounding down.

### Claim 6 (depends on 3)

The method according to claim 3, wherein the determining the SA frequency domain resources in the slot comprises:
determining, by the terminal, a set of the SA resources in the slot; and
selecting, by the terminal from the set of the SA resources, frequency domain resources used to send the SA, or determining, by the terminal, resources in the set of the SA resources as resources used to detect the SA.

### Claim 7 (depends on 6)

The method according to claim 6, wherein the determining, by the terminal, a set of the SA resources in the slot comprises:
determining, by the terminal, an RB comprised in mth available resources in the slot according to the following formula:
nRB=nCHRBstart+m×nCHsize+j, j=0,1, . . . y−1, wherein
nRB represents a number of the RB in the frequency domain, nCHRBstart represents a number of a starting RB of a sub-channel in the frequency domain, nCHsize represents a quantity of RBs comprised in the sub-channel in the frequency domain, m is an integer greater than or equal to 0, and y represents the first quantity.

### Claim 8 (depends on 6)

The method according to claim 6, wherein the determining, by the terminal, a set of the SA resources in the slot comprises:
determining, by the terminal, an RB comprised in mth available resources in the slot according to the following formula:
n
R
⁢
B
=
n
C
⁢
H
⁢
R
⁢
B
⁢
s
⁢
t
⁢
a
⁢
r
⁢
t
+
n
×
n
C
⁢
H
⁢
s
⁢
i
⁢
z
⁢
e
+
j
⁢
⁢
n
=
k
*
m
,
k
*
m
+
1
,
…
⁢
,
k
*
m
+
k
-
1
,
k
=
⌊
y
2
⌋
j
=
0
,
1
,
wherein
nRB represents a number of the RB in the frequency domain, nCHRBstart represents a number of a starting RB of a sub-channel in the frequency domain, nCHsize represents a quantity of RBs comprised in the sub-channel in the frequency domain, m is an integer greater than or equal to 0, and y represents the first quantity.

### Claim 9 (depends on 6)

The method according to claim 6, wherein the determining, by the terminal, a set of the SA resources in the slot comprises:
determining, by the terminal, an RB comprised in mth available resources in the slot according to the following formula:
nRB=nPSCCHstart+y×m+j, j=0,1, . . . y−1, wherein
nRB represents a number of the RB in the frequency domain, nPSCCHstart represents a number of a starting RB of resources that can be used to transmit the SA, m is an integer greater than or equal to 0, and y represents the first quantity.

### Claim 10 (depends on 3)

The method according to claim 3, further comprising:
obtaining, by the terminal, third indication information, wherein the third indication information is used to indicate that the SA frequency domain resources are mth available resources in the slot; and
determining, by the terminal, an RB comprised in the mth available resources in the slot according to one of the following formulas:
n
R
⁢
B
=
n
C
⁢
H
⁢
R
⁢
B
⁢
s
⁢
t
⁢
a
⁢
r
⁢
t
+
m
×
n
C
⁢
H
⁢
s
⁢
i
⁢
z
⁢
e
+
j
,
j
=
0
,
1
,
…
⁢
⁢
y
-
1
;
or
n
R
⁢
B
=
n
C
⁢
H
⁢
R
⁢
B
⁢
s
⁢
t
⁢
a
⁢
r
⁢
t
+
n
×
n
C
⁢
H
⁢
s
⁢
i
⁢
z
⁢
e
+
j
,
⁢
n
=
k
*
m
,
k
*
m
+
1
,
…
⁢
,
k
*
m
+
k
-
1
,
k
=
⌊
y
2
⌋
,
j
=
0
,
1
;
or
n
R
⁢
B
=
n
P
⁢
S
⁢
C
⁢
C
⁢
H
⁢
s
⁢
t
⁢
a
⁢
r
⁢
t
+
y
×
m
+
j
,
j
=
0
,
1
,
…
⁢
⁢
y
-
1
,
wherein
nRB represents a number of the RB in the frequency domain, nPSCCHstart represents a number of a starting RB of resources that can be used to transmit the SA, nCHsize represents a quantity of RBs comprised in a sub-channel in the frequency domain, and y represents the first quantity.

### Claim 11 (depends on 3)

The method according to claim 3, wherein the determining, by the terminal, SA resources in the slot based on the slot format comprises:
when the quantity of uplink symbols in the slot is greater than or equal to a preset threshold value, determining, by the terminal, the resources used to transmit the SA in the slot.

### Claim 12

A resource configuration method, comprising:
sending, by a network device, first indication information and second indication information, wherein the first indication information is used to indicate a slot in which a terminal sends or receives a scheduling assignment (SA), and the second indication information is used to indicate a slot format of the slot, to enable the terminal to determine SA resources in the slot based on the slot format.

### Claim 13 (depends on 12)

The method according to claim 12, further comprising:
determining, by the network device, SA frequency domain resources in the slot based on the slot format; and
sending, by the network device, third indication information to the terminal, wherein the third indication information is used to indicate the determined SA frequency domain resources.

### Claim 14

A communications device, comprising a processor, a memory, and a communications interface, wherein the memory is configured to store a program, and the processor invokes the program stored in the memory to perform:
obtaining first indication information and second indication information, wherein the first indication information is used to indicate a slot in which the communications device sends or receives a scheduling assignment (SA), and the second indication information is used to indicate a slot format of the slot; and
determining SA resources in the slot based on the slot format.

### Claim 15 (depends on 14)

The communications device according to claim 14, wherein the determining SA resources in the slot based on the slot format, comprises:
determining SA frequency domain resources in the slot based on the slot format.

### Claim 16 (depends on 15)

The communications device according to claim 15, wherein the determining SA frequency domain resources in the slot based on the slot format, comprises:
determining a first quantity based on the slot format, wherein the first quantity is a quantity of resource blocks (RBs) occupied by the SA in a frequency domain; and
determining the SA frequency domain resources in the slot based on the first quantity.

### Claim 17 (depends on 16)

The communications device according to claim 16, wherein the determining the SA frequency domain resources in the slot based on the first quantity, comprises:
determining a second quantity based on the slot format, wherein the second quantity is a quantity of uplink symbols in the slot; and
determining the first quantity based on a mapping relationship between the second quantity and the first quantity.

### Claim 18 (depends on 17)

The communications device according to claim 17, wherein the determining the first quantity based on a mapping relationship between the second quantity and the first quantity, comprises:
when the second quantity is greater than or equal to a preset threshold value, determining the first quantity according to the following formula:
y
=
⌊
A
x
⌋
,
wherein
x represents the second quantity, y represents the first quantity, A is a constant, and └ ┘ represents rounding down.

### Claim 19

A communications device, comprising a processor, a memory, and a communications interface, wherein the memory is configured to store a program, and the processor invokes the program stored in the memory to perform:
sending first indication information and second indication information, wherein the first indication information is used to indicate a slot in which a terminal sends or receives a scheduling assignment (SA), and the second indication information is used to indicate a slot format of the slot, to enable the terminal to determine SA resources in the slot based on the slot format.

### Claim 20 (depends on 19)

The communications device according to claim 19, wherein the processor invokes the program stored in the memory to perform:
determining SA frequency domain resources in the slot based on the slot format; and
sending third indication information to the terminal, wherein the third indication information is used to indicate the determined SA frequency domain resources.