IP Library › Granted Patent US 12684536

Granted Patent B2

US 12684536 · App. 18/560,208 · Granted Jul 14, 2026

Transmission resource selection method and apparatus, device, and storage medium

Inventor: Qun Zhao (Beijing, CN)

Assignee: Beijing Xiaomi Mobile Software Co., Ltd.

H04W72/02 H04W28/26 H04W72/0446

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Quick Facts

Patent No.: US 12684536
App. No.: 18/560,208
Granted: Jul 14, 2026
Kind: B2

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Abstract

A method is performed by a terminal, and includes: determining a target transmission resource in a resource selection process, and processing the target transmission resource by using a partial listening-based re-evaluation and/or preemption process.

Claims (95)

1 . A transmission resource selection method, performed by a terminal for sidelink transmission, comprising:

determining a target transmission resource during a resource selection process, the target transmission resource comprises a transmission resource within a first set of slots; and

processing the target transmission resource using at least one of a re-evaluation or a pre-emption process based on partial sensing that includes,

selecting candidate slots from a first resource selection window; and

performing at least one of the re-evaluation or the pre-emption process based on the partial sensing for the target transmission resource based on partial sensing results corresponding to the candidate slots;

wherein the first resource selection window is a resource selection window corresponding to at least one of the re-evaluation or the preemption process based on the partial sensing,

wherein

(i) a set of Y candidate slots (S 1 , . . . , SY) is selected in a second resource selection window in the resource selection process to form a candidate resource set and periodic resource reservations are performed, a resource reservation period for the periodic resource reservations is T, the first set of slots comprises slots (Sy 1 +k*T, . . . , Syu+k*T); (Sy 1 , . . . , Syu) are y 1 -th slot to yu-th slot within the Y candidate slots respectively,

k is a cycle number of a resource reservation period in which the first set of slots is located, k is non-negative integer,

T is a positive number; and

the candidate slots at least comprise slots (Sy 1 +k*T, . . . , SY+k*T), or the candidate slots at least comprise the first set of slots; or

(ii) a set of Y candidate slots (S 1 , . . . , SY) is selected in a second resource selection window in the resource selection process to form a candidate resource set without periodic resource reservation, the first set of slots comprises slots (Sy 1 , . . . , Syu); (Sy 1 , . . . , Syu) are y 1 -th slot to yu-th slot within the Y candidate slots respectively,

wherein y 1 and yu are positive integers not greater than Y,

Y is a positive integer; and

the candidate slots at least comprise slots (Sy 1 , . . . , SY), or the candidate slots at least comprise the first set of slots.

2 . The method according to claim 1 , wherein:

the resource selection process based on the partial sensing is used, or

configuration information is configured to use the partial sensing, wherein the configuration information comprises at least one of first configuration information transmitted by an access network device, second configuration information transmitted by an upper layer, and pre-configuration information, or

an attribute of data to be transmitted meets a triggering condition.

3 . The method according to claim 1 , wherein selecting the candidate slots from the first resource selection window comprises:

obtaining the candidate slots by selecting L slots in the first resource selection window, wherein L is a positive integer.

4 . The method according to claim 3 , wherein

a value of L is related to the Y candidate slots.

5 . The method according to claim 4 , wherein

L is equal to Y−y 1 +1; or

L is greater than or equal to Y−y 1 +1; or

L is equal to Y; or

L is greater than or equal to Y.

6 . The method according to claim 3 , wherein

a set of Y candidate slots (S 1 , . . . , SY) are selected in a second resource selection window in the resource selection process to form a candidate resource set and periodic resource reservations are performed, the L slots comprise the slots (Sy 1 +k*T, . . . , SY+k*T) in the k-th resource reservation period, or

a set of Y candidate slots (S 1 , . . . , SY) is selected in a second resource selection window in the resource selection process to form a candidate resource set and periodic resource reservations are performed, the L slots comprise slots within the first resource selection window among the Y candidate slots within the k-th resource reservation period, or

a set of Y candidate slots (S 1 , . . . , SY) is selected in a second resource selection window in the resource selection process to form a candidate resource set without periodic resource reservation, the L slots comprise slots within the first resource selection window among the Y candidate slots.

7 . The method according to claim 3 , wherein

a set of Y candidate slots (S 1 , . . . , SY) is selected in a second resource selection window in the resource selection process to form a candidate resource set without periodic resource reservation, the L slots comprise the slots (Sy, . . . , SY) in the candidate resource set, Sy is a y-th slot among the Y candidate slots, or

8 . A transmission resource selection method, performed by a terminal for sidelink transmission, comprising:

determining a target transmission resource during a resource selection process, the target transmission resource comprises a transmission resource within a first set of slots; and

processing the target transmission resource using at least one of a re-evaluation or a pre-emption process based on partial sensing that includes,

selecting candidate slots from a first resource selection window; and

wherein the first resource selection window is a resource selection window corresponding to at least one of the re-evaluation or the preemption process based on the partial sensing,

wherein

(i) a set of B candidate slots is determined in the resource selection process to form the target transmission resource and periodic resource reservations are performed, the first set of slots comprises slots (Rb 1 +k*T, . . . , Rbu+k*T), or

(ii) a set of B candidate slots is determined in the resource selection process to form the target transmission resource without periodic resource reservation, the first set of slots is equal to a slot Rb,

wherein

Rb 1 is a b 1 -th slot among the B candidate slots,

Rbu is a bu-th slot among the B candidate slots,

a resource reservation period for the periodic resource reservations is T,

k is a cycle number of a resource reservation period where the first set of slots is located, and k is non-negative integer,

b 1 and bu are positive integers not greater than B,

B is a positive integer,

T is a positive number,

Rb is a b-th slot among the B candidate slots,

b is a positive integer not greater than B, and

B is a positive integer.

9 . The method according to claim 8 , wherein selecting the candidate slots from the first resource selection window comprises:

obtaining the candidate slots by selecting L slots in the first resource selection window, wherein L is a positive integer.

10 . The method according to claim 9 , wherein

a value of L is related to the B candidate slots.

11 . The method according to claim 10 , wherein

L is equal to B−b 1 +1; or

L is greater than or equal to B−b 1 +1; or

L is equal to B; or

L is greater than or equal to B.

12 . The method according to claim 9 , wherein

a set of B candidate slots is determined in the resource selection process to form the target transmission resource and periodic resource reservations are performed, the L slots comprise the slots (Rb 1 +k*T, . . . , RB+k*T) in the k-th resource reservation period, RB is a B-th slot among the B candidate slots, or

a set of B candidate slots is determined in the resource selection process to form the target transmission resource and periodic resource reservations are performed, the L slots comprise slots within the first resource selection window among the B candidate slots within the k-th resource reservation period, or

a set of B candidate slots is determined in the resource selection process to form the target transmission resource without periodic resource reservation, the L slots comprise slots within the first resource selection window among the B candidate slots.

13 . The method according to claim 9 , wherein

a set of B candidate slots is determined in the resource selection process to form the target transmission resource without periodic resource reservation, the L slots comprise the slots (Rb, . . . , RB) in the target transmission resource, or

14 . The method according to claim 1 , wherein the first set of slots comprises at least two slots,

the candidate slots selected during at least one of the re-evaluation or the pre-emption process based on the partial sensing for different resources corresponding to the at least two slots are different, or

the candidate slots selected during at least one of the re-evaluation or the pre-emption process based on the partial sensing for different resources corresponding to the at least two slots are same.

15 . A terminal device, comprising a processor and a transceiver connected to the processor, wherein the processor is configured to:

determine a target transmission resource during a resource selection process, the target transmission resource comprises a transmission resource within a first set of slots; and

process the target transmission resource using at least one of a re-evaluation or a preemption process based on partial sensing that includes,

selecting candidate slots from a first resource selection window; and

wherein the first resource selection window is a resource selection window corresponding to at least one of the re-evaluation or the preemption process based on the partial sensing,

wherein

k is a cycle number of a resource reservation period in which the first set of slots is located, and k is non-negative integer,

T is a positive number; and

the candidate slots at least comprise slots (Sy 1 +k*T, . . . , SY+k*T), or the candidate slots at least comprise the first set of slots; or

wherein y 1 and yu are positive integers not greater than Y,

Y is a positive integer; and

the candidate slots at least comprise slots (Sy 1 , . . . , SY), or the candidate slots at least comprise the first set of slots.

16 . A non-transitory computer readable storage medium, storing executable instructions, wherein the executable instructions are loaded and executed by a processor to cause the processor to perform the method according to claim 1 .

17 . A terminal device, comprising a processor and a transceiver connected to the processor, wherein the processor is configured to perform the method according to claim 8 .

18 . A non-transitory computer readable storage medium, storing executable instructions, wherein the executable instructions are loaded and executed by a processor to cause the processor to perform the method according to claim 8 .

19 . The method according to claim 8 , wherein the first set of slots comprises at least two slots,

the candidate slots selected during at least one of the re-evaluation or the pre-emption process based on the partial sensing for different resources corresponding to the at least two slots are same.