# US 2021/0345180 A1 · Method and device for determining a parameter value

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- Number: US 2021/0345180 A1
- Document ID: US20210345180A1
- Status: Published application
- Kind: A1
- Application number: 17/376,444
- Filed: 2021-07-15
- Published: 2021-11-04
- Earliest claimed: 2019-01-18
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Shuyan PENG; Zichao JI
- Web page: https://patentgrep.com/patent/US20210345180A1

## CPC

- H04W 28/0231: {based on communication conditions (dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54)}
- H04W 28/22: Negotiating communication rate
- H04W 28/0263: {involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]}
- H04W 28/0278: {using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12)}
- H04W 28/24: Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
- H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W 72/20: Control channels or signalling for resource management
- H04W 72/543: based on requested quality, e.g. QoS
- H04W 76/14: Direct-mode setup
- H04W 28/18: Negotiating wireless communication parameters
- 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)

## Abstract

A method for determining a parameter value includes: in a case that a current time is a parameter value adjustment time, determining a target numerical value of a target parameter at the current time according to a target mode. The target parameter includes at least one of an interference threshold, a signal strength threshold, a channel occupancy rate threshold, a channel busy rate threshold or a distance threshold. The target mode is at least one of: determining the target numerical value according to a target mapping relationship; or according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value.

## Claims

### Claim 1

A method for determining a parameter value, applied to a user equipment in sidelink communication, comprising:
in a case that a current time is a parameter value adjustment time, determining a target numerical value of a target parameter at the current time according to a target mode, wherein the target parameter comprises at least one of an interference threshold, a signal strength threshold, a channel occupancy rate threshold, a channel busy rate threshold or a distance threshold, the target mode is at least one of:
determining the target numerical value according to a target mapping relationship, wherein the target mapping relationship comprises a mapping relationship between a value of the target parameter and first target information, and the first target information comprises at least one of a target time length, a target time length ratio, a value of a counter or the number of times of retransmission; or
according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value, wherein the initial value of the target parameter is related to the first target information.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the target mode is to determine the target numerical value according to the target mapping relationship;
the first target information comprising a target time length or a target time length ratio, the target time length comprising a first time length or a second time length, the first time length being a time length between a timing start time and the current time, the second time length being a time length between the current time and the latest time meeting the transmission delay requirement, the user equipment not performing information transmission within the first time length, and the target time length ratio being a ratio of the time length between the timing start time and the current time to the delay requirement.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the timing start time is one of following times: an arrival time of a data packet, a reception time of second target information and a time indicated by the second target information; and
in a case where the user equipment is a transmitting user equipment, the second target information comprises at least one of high-level signaling, downlink control information (DCI) or sidelink control information (SCI); or
in a case where the user equipment is a receiving user equipment, the second target information comprises at least one of high-level signaling, DCI, a scheduling request (SR), a buffer status report (BSR) or SCI.

### Claim 4 (depends on 1)

The method according to claim 1, the target mode being to adjust the step length according to the initial value and the numerical value of the target parameter, the method further comprising:
determining the initial value of the target parameter according to a mapping relationship between an initial value corresponding to the first target information and the value of the target parameter, and the first target information.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the first target information comprises a target time length, the target time length comprising a first time length or a second time length, the first time length being a time length between a timing start time and the current time, the second time length being a time length between the current time and the latest time meeting the transmission delay requirement, and the user equipment not performing information transmission within the first time length.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the timing start time is one of following times: an arrival time of a data packet, an activation time of the counter, a reception time of third target information and a time indicated by the third target information; and
in a case where the user equipment is a transmitting user equipment, the third target information comprises at least one of high-level signaling, downlink control information (DCI), or sidelink control information (SCI); or
in a case where the user equipment is a receiving user equipment, the third target information comprises at least one of high-level signaling, DCI, a scheduling request (SR), a buffer status report (BSR), or SCI.

### Claim 7 (depends on 1)

The method according to claim 1, further comprising:
according to an adjustment time granularity, determining whether the current time is a parameter adjustment time.

### Claim 8 (depends on 2)

The method according to claim 2, further comprising:
according to the target time length and a preset time length, determining whether the current time is a parameter adjustment time.

### Claim 9 (depends on 4)

The method according to claim 4, wherein the numerical value adjustment step length is determined by the user equipment according to a mapping relationship between the target time length and the numerical value adjustment step length.

### Claim 10 (depends on 4)

The method according to claim 4, wherein the first target information further comprises a granularity of a frequency domain resource unit, and the numerical value adjustment step length is determined by the user equipment according to a mapping relationship between the granularity of the frequency domain resource unit and the numerical value adjustment step length; or
the numerical value adjustment step length is determined by the user equipment according to a mapping relationship between the number of times of retransmission and the numerical value adjustment step length.

### Claim 11

A method for determining a parameter value, applied to a user equipment in sidelink communication, comprising:
determining an occupation situation of a transmission resource corresponding to a current time; and
in a case that the transmission resource is not occupied, adjusting a value of a counter, wherein the counter is applied to resource assignment.

### Claim 12 (depends on 11)

The method according to claim 11, wherein the determining an occupation situation of a transmission resource corresponding to a current time comprises:
according to scheduling assignment (SA) information, determining the occupation situation of the transmission resource, wherein the SA information is used to schedule the transmission resource corresponding to the current time;
and/or,
the determining an occupation situation of a transmission resource corresponding to a current time comprises:
according to measurement information of SA information, determining the occupation situation of the transmission resource corresponding to the current time, wherein the SA information is used to schedule the transmission resource corresponding to the current time;
and/or,
the determining an occupation situation of a transmission resource corresponding to a current time comprises:
according to measurement information of information indicated by SA information, determining the occupation situation of the transmission resource corresponding to the current time, wherein the SA information is used to schedule the transmission resource corresponding to the current time; or
according to measurement information of a transmission resource indicated by SA information, determining the occupation situation of the transmission resource corresponding to the current time, wherein the SA information is used to schedule the transmission resource corresponding to the current time.

### Claim 13 (depends on 11)

The method according to claim 11, wherein the adjustment granularity of the value of the counter is a time domain adjustment granularity, or the adjustment granularity of the value of the counter is a time frequency domain adjustment granularity.

### Claim 14 (depends on 13)

The method according to claim 13, further comprising:
determining an initial value of the counter;
wherein the determining the initial value of the counter comprises:
determining the initial value according to a quality of service (QoS) requirement and a first mapping relationship, the first mapping relationship comprising a mapping relationship between the QoS requirement and an initial value range.

### Claim 15 (depends on 14)

The method according to claim 14, wherein the determining the initial value according to the QoS requirement and the first mapping relationship comprises:
determining a target initial value range where the initial value is located according to the first mapping relationship; and
determining the initial value from the target initial value range according to first target information, the first target information comprising at least one of a geographic position of user equipment, a speed of the user equipment, a distance between the user equipment, a density of the user equipment within a preset area range, a bearing type, a business type, a size of a packet or an arrival rate of the packet;
or,
the determining the initial value of the counter comprises:
determining the initial value according to second target information and a second mapping relationship, the second mapping relationship comprising a mapping relationship between the second target information and the initial value, and the second target information comprising at least one of a QoS requirement, a geographical position of user equipment, a speed of the user equipment, a distance between the user equipment, a density of the user equipment within a preset area range, a bearing type, a business type, a size of a packet or an arrival rate of the packet.

### Claim 16

A user equipment, applied to sidelink communication, comprising: a memory, a processor and a program which is stored in the memory and executable on the processor, wherein the program, when executed by the processor, causes the processor to perform:
in a case that a current time is a parameter value adjustment time, determining a target numerical value of a target parameter at the current time according to a target mode, wherein the target parameter comprises at least one of an interference threshold, a signal strength threshold, a channel occupancy rate threshold, a channel busy rate threshold or a distance threshold, the target mode is at least one of:
determining the target numerical value according to a target mapping relationship, wherein the target mapping relationship comprises a mapping relationship between a value of the target parameter and first target information, and the first target information comprises at least one of a target time length, a target time length ratio, a value of a counter or the number of times of retransmission; or
according to an initial value of the target parameter and a numerical value adjustment step length, determining the target numerical value, wherein the initial value of the target parameter is related to the first target information.

### Claim 17 (depends on 16)

The user equipment according to claim 16, wherein the target mode is to determine the target numerical value according to the target mapping relationship,
the first target information comprising a target time length or a target time length ratio, the target time length comprising a first time length or a second time length, the first time length being a time length between a timing start time and the current time, the second time length being a time length between the current time and the latest time meeting the transmission delay requirement, the user equipment not performing information transmission within the first time length, and the target time length ratio being a ratio of the time length between the timing start time and the current time to the delay requirement.

### Claim 18 (depends on 17)

The user equipment according to claim 17, wherein the timing start time is one of following times: an arrival time of a data packet, a reception time of second target information and a time indicated by the second target information; and
in a case where the user equipment is a transmitting user equipment, the second target information comprises at least one of high-level signaling, downlink control information (DCI) or sidelink control information (SCI); or
in a case where the user equipment is a receiving user equipment, the second target information comprises at least one of high-level signaling, DCI, a scheduling request (SR), a buffer status report (BSR) or SCI.

### Claim 19 (depends on 16)

The user equipment according to claim 16, wherein the target mode is to adjust the step length according to the initial value and the numerical value of the target parameter; and
the program, when executed by the processor, causes the processor to further perform:
determining the initial value of the target parameter according to a mapping relationship between an initial value corresponding to the first target information and the value of the target parameter, and the first target information.

### Claim 20 (depends on 11)

A user equipment, applied to sidelink communication, comprising: a memory, a processor and a program which is stored in the memory and executable on the processor, wherein the program, when executed by the processor, causes the processor to perform steps of the method for determining a parameter value according to claim 11.
