Method for communication and terminal device

1 . A method for communication, comprising:

acquiring, by a terminal device, first information of a first radio access technology (RAT), wherein the first information indicates information related to a first resources of the first RAT, and each of the first RAT and a second RAT is an RAT used to transmit a sidelink, and wherein

the first information is acquired at a first time duration prior to a slot n, wherein the slot n is used to transmit on at least one of a physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH) by using the second RAT based on the first information, and wherein acquiring the first information comprises at least one or more of:

periodically acquiring the first information;

acquiring the first information in response to a traffic trigger condition of the second RAT; or

acquiring the first information in response to a comparison result between a sensing result of the first RAT and a first threshold,

wherein the first threshold is preset or configured by a higher layer, and

transmitting the sidelink on at least one of the first RAT or the second RAT.

2 . The method of claim 1 , wherein the first time duration is 4 milliseconds or 8 milliseconds.

3 . The method according to claim 1 , wherein the information related to the first resources includes at least one of sensing information and resource information.

4 . The method according to claim 3 , wherein the resource information includes one or more of following information of the first RAT:

information related to reserved resources of the terminal device;

information related to reserved resources indicated by sidelink control information (SCI);

sub-channel configuration information;

a candidate resource set;

information related to logical sub-frames;

priority information; or

information related to transmission resources.

5 . The method according to claim 3 , wherein the sensing information indicates a sensing result, wherein the sensing result includes one or more of following parameters of the first RAT: reference signal received power (RSRP), reference signal received quality (RSRQ), or received signal strength indicator (RSSI).

6 . The method according to claim 1 , further comprising:

transmitting a first request message over the second RAT;

wherein receiving the first information comprises:

receiving the first information in response to transmitting the first request message.

7 . The method according to claim 1 , wherein the first information indicates transmission resources in shared transmission resources that are shared by the first RAT and the second RAT.

8 . The method according to claim 7 , wherein a proportion of the transmission resources in the shared transmission resources is configured or predefined.

9 . The method according to claim 7 , further comprising one or more of:

in response to the first RAT and the second RAT both needing to use the shared transmission resources, preferentially allocating resources to a RAT having a greater sensing result;

in response to a target RAT of the first RAT and the second RAT needing to use the shared transmission resources, allocating a part of the shared transmission resources to the target RAT; or

in response to a target RAT of the first RAT and the second RAT needing to use the shared transmission resources, reserving a part of the shared transmission resources to an RAT other than the target RAT.

10 . The method according to claim 7 , wherein the transmission resources are determined by a channel busy ratio (CBR), wherein CBR n represents a CBR corresponding to a sub-frame n, and CBR n satisfies:

CBR

n

=

k

⁢

1

*

∑

i

=

1

M

⁢

Q

n

-

i

M

+

-

k

⁢

2

*

Q

n

-

1

+

k

⁢

3

*

(

Q

n

-

1

-

Q

n

-

2

)

;

wherein k1, k2, and k3 are each a number greater than 0 and less than 1, M represents a number of sub-frames for determining the CBR n , and Q represents a sensing result of a corresponding sub-frame.

11 . The method according to claim 7 , wherein the transmission resources are determined by channel resources (CRs), wherein the CRs are determined based on a channel busy ratio (CBR), and the CRs are configured to determine a size of the transmission resources required by one or both of the first RAT and the second RAT in the shared transmission resources.

12 . The method according to claim 7 , further comprising one or more of:

preferentially allocating or assigning resources in the shared transmission resources to a RAT with a higher RAT priority;

preferentially allocating or assigning resources in the shared transmission resources to traffic with a higher traffic priority; or

preferentially allocating or assigning resources in the shared transmission resources to a RAT with a physical sidelink feedback channel (PSFCH).

13 . The method according to claim 12 , wherein resources required by the second RAT include transmission resources required by the PSFCH, wherein a period of the transmission resources required by the PSFCH is P times a period of the transmission resources required by the first RAT, P being a positive integer.

14 . The method according to claim 13 , wherein the transmission resources required by the PSFCH include a slot where the PSFCH is located, wherein the slot where the PSFCH is located is related to a reference slot, the reference slot being a start slot of the second RAT in the shared transmission resources.

15 . The method according to claim 14 , wherein the slot where the PSFCH is located satisfies:

n

+

Q

*

P

rsvp

⁢

_

⁢

nrTX

*

N

PSSCH

PSFCH

-

1

,

wherein n represents a location of the reference slot, Q represents a scaling factor and is a positive number, P rsvp_nrTX represents the period of the transmission resources required by the PSFCH, and

N

PSSCH

PSFCH

represents that one out of every

N

PSSCH

PSFCH

slots is a PSFCH.

16 . The method according to claim 12 , wherein resources required by the second RAT include transmission resources required by the PSFCH, wherein locations of the transmission resources required by the PSFCH in the shared transmission resources are pre-configured.

17 . A terminal device, comprising:

at least one processor;

one or more non-transitory computer-readable storage media coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions, when executed, cause the terminal device to perform operations comprising:

acquiring first information of a first RAT, wherein the first information indicates information related to a first resources of the first RAT, and each of the first RAT and a second RAT is an RAT used to transmit a sidelink, and wherein

the first information is acquired at a first time duration prior to a slot n, wherein the slot n is used to transmit on at least one of a physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH) by using the second RAT based on the first information, and wherein acquiring the first information comprises at least one or more of:

periodically acquiring the first information;

acquiring the first information in response to a traffic trigger condition of the second RAT; or

acquiring the first information in response to a comparison result between a sensing result of the first RAT and a first threshold,

wherein the first threshold is preset or configured by a higher layer.

18 . The terminal device of claim 17 , wherein the first time duration is 4 milliseconds or 8 milliseconds.

19 . The terminal device of claim 17 , wherein the information related to the first resources includes at least one of sensing information and resource information.

20 . One or more non-transitory computer-readable media storing computer instructions, that when executed by one or more processors, cause a computing device to perform operations comprising:

acquiring first information of a first radio access technology (RAT), wherein the first information indicates information related to a first resources of the first RAT, and each of the first RAT and a second RAT is an RAT used to transmit a sidelink, and wherein

the first information is acquired at a first time duration prior to a slot n, wherein the slot n is used to transmit on at least one of a physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH) by using the second RAT based on the first information, and wherein acquiring the first information comprises at least one or more of:

periodically acquiring the first information;

acquiring the first information in response to a traffic trigger condition of the second RAT; or

acquiring the first information in response to a comparison result between a sensing result of the first RAT and a first threshold,

wherein the first threshold is preset or configured by a higher layer.