Patent Publication Number: US-2023156768-A1

Title: Method and device for stopping sending schedule request

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a US National Stage of International Application No. PCT/CN2021/085205, filed on Apr. 2, 2021, which claims priority to Chinese Patent Application No. 202010268262.1 entitled “METHOD AND DEVICE FOR STOPPING SENDING SCHEDULE REQUEST” filed on Apr. 8, 2020 to the Chinese Patent Office, which is hereby incorporated herein by reference in its entirety. 
    
    
     FIELD 
     The present application relates to the field of communications, and in particular to a method and device for stopping sending a schedule request. 
     BACKGROUND 
     The vehicle-to-vehicle communication, vehicle-to-base station communication, and base station-to-base station communication are realized by using V2X (vehicle to everything) technology. For the vehicle-to-vehicle communication, a vehicle A needs to carry control information of a specific target to corresponding resources and send it to a vehicle B according to schedule resource information for data transmission sent by the base station. If there are no available resources at present, the vehicle A may send a schedule request (SR) to the base station to obtain the new schedule resource information sent by the base station; then, according to the new schedule resource information, the control information is carried on new resources and sent to the vehicle B. 
     Before sending the SR to the base station, it is also necessary to wait for the resources used for sending the SR, and if the waiting time is too long, the time when the vehicle A acquires new schedule resource information sent by the base station has exceeded the delay requirement of the specific target. However, at present, the vehicle A may stop sending the SR only if any one of the following conditions is met: the control information is carried on other resources by the vehicle A, and then is sent to vehicle B; or the vehicle A replaces the resource selection way. 
     In view of this, it is necessary to devise a new method for stopping sending a schedule request to overcome the above-mentioned drawbacks. 
     SUMMARY 
     Embodiments of the present disclosure provide a method and device for stopping sending a schedule request to solve the problem of acquisition timeout of schedule resource information sent by a network side. 
     Embodiments herein are as follows. 
     Some embodiments of the application provide a method for stopping sending a schedule request, including: in response to a demand for requesting from a network side resource scheduling for information of a specific target, determining a delay requirement of the specific target; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, stopping sending the SR. 
     In one embodiment, the determining the delay requirement of the specific target includes: when the specific target is a logical channel, determining a delay requirement from a Quality of Service (QoS) parameter corresponding to the logical channel; or, when the specific target is a Media Access Control Control Element (MAC CE), determining a delay requirement of the MAC CE. 
     In one embodiment, the determining the delay requirement of the MAC CE via protocol or network side configuration. 
     In one embodiment, whether the delay requirement of the specific target is met is determined by: determining, based on a set time offset, whether the delay requirement of the specific target is met; where the time offset is a duration from sending the SR to determining a Sidelink (SL) resource allocated by a network side. 
     In one embodiment, the method further includes: determining the time offset via protocol or network side configuration. 
     In one embodiment, the determining, based on the set time offset, whether the delay requirement of the specific target is met includes: determining that the delay requirement of the specific target is not met in response to the SR being not sent when a remaining duration of a timer is equal to the time offset; where the duration of the timer is set according to the delay requirement, and a starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     In one embodiment, the determining, based on the set time offset, whether the delay requirement of the specific target is met includes: determining that the delay requirement of the specific target is not met in response to the SR being not sent when a duration of a time counter is equal to a time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the determining, based on the set time offset, whether the delay requirement of the specific target is met includes: determining that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference between, a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, whether the delay requirement of the specific target is met is determined by: determining that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, the method further includes: randomly requesting resource scheduling for the information of the specific target from the network side. 
     Some embodiments of the application further provide a user terminal, including: a memory, configured to store program instructions; and a processor, configured to call the program instructions stored in the memory, and execute according to an obtained program: in response to a demand for requesting from a network side resource scheduling for information of a specific target, determining a delay requirement of the specific target; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, stopping sending the SR. 
     In one embodiment, the processor is configured to execute: when the specific target is a logical channel, determining a delay requirement from a QoS parameter corresponding to the logical channel; or, when the specific target is an MAC CE, determining a delay requirement of the MAC CE. 
     In one embodiment, the processor is configured to determine the delay requirement of the MAC CE via protocol or network side configuration. 
     In one embodiment, the processor is configured to determine whether the delay requirement of the specific target is met by: determining, based on a set time offset, whether the delay requirement of the specific target is met; where the time offset is a duration from sending the SR to determining an SL resource allocated by a network side. 
     In one embodiment, the processor is further configured to: determine the time offset via protocol or network side configuration. 
     In one embodiment, the processor is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a remaining duration of a timer is equal to the time offset; where the duration of the timer is set according to the delay requirement, and a starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     In one embodiment, the processor is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a duration of a time counter is equal to a time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the processor is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the processor is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, the processor is further configured to: randomly request resource scheduling for the information of the specific target from the network side. 
     Some embodiments of the application further disclose a device for stopping sending a schedule request, including: a determining device, configured to determine a delay requirement of the specific target, in response to a demand for requesting from a network side resource scheduling for information of a specific target; and a sending stop device, configured to stop sending the SR, when it is determined that the delay requirement of the specific target is not met before the SR is sent to the network side. 
     In one embodiment, the determining device is configured to: when the specific target is a logical channel, determine a delay requirement from a QoS parameter corresponding to the logical channel; or, when the specific target is an MAC CE, determine a delay requirement of the MAC CE. 
     In one embodiment, the determining device is configured to determine the delay requirement of the MAC CE via protocol or network side configuration. 
     In one embodiment, the sending stop device is configured to: determine, based on a set time offset, whether the delay requirement of the specific target is met; where the time offset is a duration from sending the SR to determining an SL resource allocated by a network side. 
     In one embodiment, the sending stop device is further configured to: determine the time offset via protocol or network side configuration. 
     In one embodiment, the sending stop device is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a remaining duration of a timer is equal to the time offset; where the duration of the timer is set according to the delay requirement, and a starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     In one embodiment, the sending stop device is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a duration of a time counter is equal to a time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the sending stop device is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the sending stop device is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, the sending stop device is further configured to: randomly request resource scheduling for the information of the specific target from the network side. 
     Some embodiments of the application further provide a storage medium, including computer readable instructions which, when read and executed by a computer, cause the computer to perform the any method for stopping sending the schedule request. 
     The benefits of the present application are as follows: in the embodiments of the present application, in response to a demand for requesting from a network side resource scheduling for information of a specific target, a delay requirement of the specific target is determined; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, SR sending is stopped. In this way, before an SR is sent to a network side, when it is determined that a delay requirement of a specific target cannot be met, the sending of the SR is stopped in advance, and the acquisition timeout of schedule resource information sent by the network side can be avoided. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The drawings illustrated herein serve to provide a further understanding of and constitute a part of this application, and the illustrative embodiments of this application and the description thereof are used to explain the present application and do not constitute an improper limitation of the present application. 
         FIG.  1    shows a schematic architecture of a V2V communication system according to an embodiment of the present disclosure. 
         FIG.  2    shows a flowchart illustrating stopping sending an SR according to an embodiment of the present disclosure. 
         FIG.  3 A  shows a flowchart illustrating determining to stop sending an SR based on a remaining duration of a timer when a specific target is a logical channel according to an embodiment of the present disclosure. 
         FIG.  3 B  shows a timeline illustrating stopping sending an SR generated by a logical channel according to an embodiment of the present disclosure. 
         FIG.  4 A  shows a flowchart illustrating determining to stop sending an SR based on a remaining duration of a timer when a specific target is an MAC CE according to an embodiment of the present disclosure. 
         FIG.  4 B  shows a timeline illustrating stopping sending an SR generated by an MAC CE according to an embodiment of the present disclosure. 
         FIG.  5 A  shows a flowchart illustrating determining to stop sending an SR based on a duration of a time counter when a specific target is a logical channel according to an embodiment of the present disclosure. 
         FIG.  5 B  shows a timeline illustrating stopping sending an SR generated by a logical channel according to an embodiment of the present disclosure. 
         FIG.  6 A  shows a flowchart illustrating determining to stop sending an SR based on a duration of a time counter when a specific target is an MAC CE according to an embodiment of the present disclosure. 
         FIG.  6 B  shows a timeline illustrating stopping sending an SR generated by an MAC CE according to an embodiment of the present disclosure. 
         FIG.  7 A  shows a flowchart illustrating determining to stop sending an SR based on a time difference between a current time when resource scheduling for the information of a logical channel is requested from a network side and a trigger time when resource scheduling for the information of the logical channel is requested from the network side when the specific target is the logical channel according to an embodiment of the present disclosure. 
         FIG.  7 B  shows a timeline illustrating stopping sending an SR generated by a logical channel according to an embodiment of the present disclosure. 
         FIG.  8 A  shows a flowchart illustrating determining to stop sending an SR based on a time difference between a current time when resource scheduling for the information of an MAC CE is requested from a network side and a trigger time when resource scheduling for the information of the MAC CE is requested from the network side when the specific target is the MAC CE according to an embodiment of the present disclosure. 
         FIG.  8 B  shows a timeline illustrating stopping sending an SR generated by an MAC CE according to an embodiment of the present disclosure. 
         FIG.  9 A  shows a flowchart illustrating determining to stop sending an SR based on a time difference between a current time when resource scheduling for the information of a logical channel is requested from a network side and a trigger time when resource scheduling for the information of the logical channel is requested from the network side when the specific target is the logical channel according to an embodiment of the present disclosure. 
         FIG.  9 B  shows a timeline illustrating stopping sending an SR generated by a logical channel according to an embodiment of the present disclosure. 
         FIG.  10 A  shows a flowchart illustrating determining to stop sending an SR based on a time difference between a current time when resource scheduling for the information of an MAC CE is requested from a network side and a trigger time when resource scheduling for the information of the MAC CE is requested from the network side when the specific target is the MAC CE according to an embodiment of the present disclosure. 
         FIG.  10 B  shows a timeline illustrating stopping sending an SR generated by an MAC CE according to an embodiment of the present disclosure. 
         FIG.  11    shows a structural diagram of a user terminal according to an embodiment of the present disclosure. 
         FIG.  12    shows a structural diagram of a device for stopping sending a schedule request according to an embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The embodiments of the present application clearer are described in the accompanying drawings of the embodiments of the present application, and it will be apparent that the embodiments described are some, but not all, embodiments of the solutions of the present application. 
     In order to solve the problem of acquisition timeout of schedule resource information sent by the network side, in the embodiments of the present application, a new solution is proposed to stop sending a schedule request. The solution includes in response to a demand for requesting from a network side resource scheduling for information of a specific target, determining a delay requirement of the specific target; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, stopping sending the SR. 
     The embodiments of the present application will be described in detail below with reference to the accompanying drawings. 
     Referring to  FIG.  1   ,  FIG.  1    shows an architecture diagram of a Vehicle-to-Vehicle (V2V) communication system including a vehicle A (subsequently referred to as User Equipment (UE)  1 ), a vehicle B (subsequently referred to as UE 2 ) and a base station (eNodeB, eNB) connected to one another. The UE 1  and the UE 2  perform data transmission through sidelink (SL), and the UE 1  and the UE 2  may establish a communication connection with the eNB through a cellular communication link (Uulink), respectively. 
     When the UE 1  transmits data to the UE 2 , control information for a specific target needs to be carried onto the corresponding resources and then sent to the other according to the schedule resource information sent by the eNB for the data transmission. If there are no resources currently available, the UE 1  needs to generate an SR by specific target triggering and then the SR is sent to the eNB to obtain the new schedule resource information sent by the eNB, but if the waiting time for resources to carry the scheduling resource request is too long, the time when UE 1  obtains the new schedule resource information sent by the eNB has exceeded the delay requirement of the specific target. Therefore, before sending the SR to the eNB, the UE 1  needs to determine whether to stop sending the SR in time according to the delay requirement of the specific target. 
     Referring to  FIG.  2    which is a flowchart illustrating stopping sending an SR according to an embodiment of the present disclosure. 
     S 201 : in response to a demand for requesting from a network side resource scheduling for information of a specific target, the delay requirement of the specific target is determined. 
     In one embodiment, the determining the delay requirement of a specific target is: when the specific target is a logical channel, determining a delay requirement from a Quality of Service (QoS) parameter corresponding to the logical channel; or, when the specific target is a Media Access Control Control Element (MAC CE), determining a delay requirement of the MAC CE. The embodiment of the present application determines the delay requirement of the MAC CE via protocol or network side configuration. 
     S 202 : before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, SR sending is stopped. 
     In one embodiment, the embodiments of the present application provide the following two determining rules. 
     First rule: whether the delay requirement of the specific target is met is determined based on a set time offset. The time offset is the duration from sending the SR to determining an SL resource allocated by a network side, and the time offset is determined via the protocol or the network side configuration in the embodiments of the present disclosure. 
     The following three determining manners are included in the first determining rule. 
     Manner A: if the SR is not sent when the remaining duration of the timer is equal to the time offset, then it is determined that the delay requirement of the specific target is not met. 
     The duration of the timer is set according to the delay requirement and the starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     The delay requirement of the specific target indicates the maximum duration for the UE 1  to acquire the schedule resource information, and the time offset indicates the duration from sending the SR to determining an SL resource allocated by a network side. The duration of the timer is a duration during which the timer counts down from the delay requirement of the specific target, so when the remaining duration of the timer is equal to the time offset, the SR is still not sent, which means that when the SR is then sent to the network side, there may be a case where the duration of receiving the SL resource allocated by the network side has exceeded the delay requirement of the specific target. 
     In particular, when the specific target is a logical channel, reference is made to the flowchart diagram of  FIG.  3 A  and the timeline diagram of  FIG.  3 B  for illustration. 
     S 301 : the duration of the timer T is set according to the delay requirement of the logical channel, the timer T is started when the logical channel generates the SR, and a set time offset (denoted as delta T) is obtained. 
     S 302 : the remaining duration T′ of the timer T is calculated. 
     S 303 : whether T′ is equal to delta T is determined, and if yes, step  304  is performed. 
     S 304 : whether the SR has been sent is determined, and, if yes, step  305  is performed; otherwise, step  306  is performed. 
     S 305 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the logical channel is ended. 
     S 306 : SR sending is stopped. 
     The delay requirement of the logical channel in  FIG.  3 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining the SL resource allocated by the network side, and the timer is started when the SR is generated. 
     When the specific target is an MAC CE, reference is made to the flowchart diagram of  FIG.  4 A  and the timeline diagram of  FIG.  4 B  for illustration. 
     S 401 : the duration of the timer T is set according to the delay requirement of the MAC CE, the timer T is started when the MAC CE generates the SR, and a set time offset (denoted as delta T) is obtained. 
     S 402 : the remaining duration T′ of the timer T is calculated. 
     S 403 : whether T′ is equal to delta T is determined, and if yes, step  404  is performed. 
     S 404 : whether the SR has been sent is determined, and, if yes, step  405  is performed; otherwise, step  406  is performed. 
     S 405 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the MAC CE is ended. 
     S 406 : SR sending is stopped. 
     The delay requirement of the MAC CE in  FIG.  4 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining the SL resource allocated by the network side, and the timer is started when the SR is generated. 
     Manner B: if the SR is not sent when the duration of the time counter is equal to a time difference between the delay requirement of the specific target and the time offset, then it is determined that the delay requirement of the specific target is not met. The starting time of the time counter is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     The delay requirement of the specific target indicates the maximum duration for the UE 1  to acquire the schedule resource information, and the time offset indicates the duration from sending the SR to determining an SL resource allocated by a network side. The time difference obtained by subtracting the time offset from the delay requirement of the specific target indicates the maximum duration for the SR to wait for the resource carrying itself. The duration of the time counter is a duration during which the time counter counts to the delay requirement of the specific target, so when the duration of the time counter is equal to a time difference between the delay requirement of the specific target and the time offset, the SR is still not sent, which means that when the SR is then sent to the network side, there may be a case where the duration of receiving the SL resource allocated by the network side has exceeded the delay requirement of the specific target. 
     In particular, when the specific target is a logical channel, reference is made to the flowchart diagram of  FIG.  5 A  and the timeline diagram of  FIG.  5 B  for illustration. 
     S 501 : a time counter is started when the logical channel generates the SR, and a time offset is subtracted from the delay requirement of the logical channel to obtain a time difference. 
     S 502 : a duration C 1  of the time counter is determined. 
     S 503 : whether C 1  is equal to the time difference is determined, and if yes, step  504  is performed. 
     S 504 : whether the SR has been sent is determined, and if yes, step  505  is performed; otherwise, step  506  is performed. 
     S 505 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the logical channel is ended. 
     S 506 : SR sending is stopped. 
     The delay requirement of the logical channel in  FIG.  5 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining the SL resource allocated by the network side, and the time counter is started when the SR is generated. 
     When the specific target is an MAC CE, reference is made to the flowchart diagram of  FIG.  6 A  and the timeline diagram of  FIG.  6 B  for illustration. 
     S 601 : a time counter is started when the MAC CE generates the SR, and a time offset is subtracted from the delay requirement of the MAC CE to obtain a time difference. 
     S 602 : a duration C 1  of the time counter is determined. 
     S 603 : whether C 1  is equal to the time difference is determined, and if yes, step  604  is performed. 
     S 604 : whether the SR has been sent is determined, and if yes, step  605  is performed; otherwise, step  606  is performed. 
     S 605 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the MAC CE is ended. 
     S 606 : SR sending is stopped. 
     The delay requirement of the MAC CE in  FIG.  6 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining the SL resource allocated by the network side, and the time counter is started when the SR is generated. 
     Manner C: if the SR is not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset, then it is determined that the delay requirement of the specific target is not met. 
     The time difference obtained by subtracting the trigger time from the current time when resource scheduling for the information of the specific target is requested from the network side indicates the duration for the SR to wait for the resource carrying itself. The time difference obtained by subtracting the time offset from the delay requirement of the specific target indicates the maximum duration for the SR to wait for the resource carrying itself. When a time difference, between the current time when resource scheduling for the information of the specific target is requested from the network side and the trigger time, is greater than the time difference between the delay requirement of the specific target and the time offset, the SR is still not sent, which means that when the SR is then sent to the network side, there may be a case where the duration of receiving the SL resource allocated by the network side has exceeded the delay requirement of the specific target. 
     In particular, when the specific target is a logical channel, reference is made to the flowchart diagram of  FIG.  7 A  and the timeline diagram of  FIG.  7 B  for illustration. 
     S 701 : a current time t current  when resource scheduling for the information of the logical channel is requested from the network side is determined, and a time offset is subtracted from the delay requirement of the logical channel to obtain a first time difference. 
     S 702 : a trigger time t rigger  when resource scheduling for the information of the logical channel is requested from the network side is subtracted from the t current  to obtain a second time difference t difference . 
     S 703 : whether the t difference  is greater than the first time difference is determined, and if yes, step  704  is performed. 
     S 704 : whether the SR has been sent is determined, and if yes, step  705  is performed; otherwise, step  706  is performed. 
     S 705 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the logical channel is ended. 
     S 706 : SR sending is stopped. 
     The delay requirement of the logical channel in  FIG.  7 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining an SL resource allocated by a network side, and the trigger time when the SR is generated and the current time when the SR is prepared to be sent to the network side are determined. 
     When the specific target is an MAC CE, reference is made to the flowchart diagram of  FIG.  8 A  and the timeline diagram of  FIG.  8 B  for illustration. 
     S 801 : a current time t current  when resource scheduling for the information of the MAC CE is requested from the network side is determined, and a time offset is subtracted from the delay requirement of the MAC CE to obtain a first time difference. 
     S 802 : a trigger time t rigger  when resource scheduling for the information of the MAC CE is requested from the network side is subtracted from the t current  to obtain a second time difference t difference . 
     S 803 : whether the t difference  is greater than the first time difference is determined, and if yes, step  804  is performed. 
     S 804 : whether the SR has been sent is determined, and if yes, step  805  is performed; otherwise, step  806  is performed. 
     S 805 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the MAC CE is ended. 
     S 806 : SR sending is stopped. 
     The delay requirement of the MAC CE in  FIG.  8 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining an SL resource allocated by a network side, and the trigger time when the SR is generated and the current time when the SR is prepared to be sent to the network side are determined. 
     Second rule: it is determined that the delay requirement of the specific target is not met, if the SR is not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     The time difference obtained by subtracting the trigger time from the current time when resource scheduling for the information of the specific target is requested from the network side indicates the duration for the SR to wait for the resource carrying itself. The delay requirement of the specific target indicates the maximum duration for the UE 1  to obtain the schedule resource information. When a time difference is greater than the delay requirement of the specific target and the time offset, the SR is still not sent, which means that when the SR is then sent to the network side, there may be a case where the duration of receiving the SL resource allocated by the network side has exceeded the delay requirement of the specific target. 
     In particular, when the specific target is a logical channel, reference is made to the flowchart diagram of  FIG.  9 A  and the timeline diagram of  FIG.  9 B  for illustration. 
     S 901 : a current time t current  when resource scheduling for the information of the logical channel is requested from the network side is determined. 
     S 902 : a trigger time t rigger  when resource scheduling for the information of the logical channel is requested from the network side is subtracted from the t current  to obtain a time difference t difference . 
     S 903 : whether the t difference  is greater than the delay requirement of the logical channel is determined, and if yes, step  904  is performed. 
     S 904 : whether the SR has been sent is determined, and if yes, step  905  is performed; otherwise, step  906  is performed. 
     S 905 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the logical channel is ended. 
     S 906 : SR sending is stopped. 
     The delay requirement of the logical channel in  FIG.  9 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, and the trigger time when the SR is generated and the current time when the SR is prepared to be sent to the network side are determined. 
     When the specific target is an MAC CE, reference is made to the flowchart diagram of  FIG.  10 A  and the timeline diagram of  FIG.  10 B  for illustration. 
     S 1001 : a current time t current  when resource scheduling for the information of the MAC CE is requested from the network side is determined. 
     S 1002 : a trigger time t rigger  when resource scheduling for the information of the MAC CE is requested from the network side is subtracted from the t current  to obtain a time difference t difference . 
     S 1003 : whether the t difference  is greater than the delay requirement of the MAC CE is determined, and if yes, step  1004  is performed. 
     S 1004 : whether the SR has been sent is determined, and if yes, step  1005  is performed; otherwise, step  1006  is performed. 
     S 1005 : the process of determining whether the duration of receiving the SL resource allocated by a network side satisfies the delay requirement of the MAC CE is ended. 
     S 1006 : SR sending is stopped. 
     The delay requirement of the MAC CE in  FIG.  10 B  indicates the maximum duration for the UE 1  to acquire the schedule resource information, the time offset delta T indicates the duration from sending the SR to determining an SL resource allocated by a network side, and the trigger time when the SR is generated and the current time when the SR is prepared to be sent to the network side are determined. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, further, resource for the information of the specific target can be randomly requested from the network side. Before sending a Random Access Schedule Request (RA-SR) to the network side, when it is determined that the RA-SR fails to meet the delay requirement of the specific target, RA-SR sending is stopped. 
     Embodiments of the present application provide a user terminal, see  FIG.  11   , including at least a memory  1101  and at least one processor  1102 , where the memory  1101  and the processor  1102  are in communication with each other via a communication bus; the memory  1101  is configured to store program instructions; and the processor  1102  is configured to call the program instructions stored in the memory, and execute according to an obtained program: in response to a demand for requesting from a network side resource scheduling for information of a specific target, determining a delay requirement of the specific target; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, stopping sending the SR. 
     In one embodiment, the processor  1102  is configured to execute: when the specific target is a logical channel, determining a delay requirement from a QoS parameter corresponding to the logical channel; or, when the specific target is an MAC CE, determining a delay requirement of the MAC CE. 
     In one embodiment, the processor  1102  is configured to determine the delay requirement of the MAC CE via protocol or network side configuration. 
     In one embodiment, the processor  1102  is configured to determine, based on a set time offset, whether the delay requirement of the specific target is met; where the time offset is a duration from sending the SR to determining an SL resource allocated by a network side. 
     In one embodiment, the processor  1102  is further configured to: determine the time offset via protocol or network side configuration. 
     In one embodiment, the processor  1102  is configured to determine that the delay requirement of the specific target is not met in response to the SR being not sent when a remaining duration of a timer is equal to the time offset; where the duration of the timer is set according to the delay requirement and a starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     In one embodiment, the processor  1102  is configured to determine that the delay requirement of the specific target is not met in response to the SR being not sent when a duration of a time counter is equal to a time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the processor  1102  is configured to determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the processor  1102  is configured to determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, the processor  1102  is further configured to: randomly request resource scheduling for the information of the specific target from the network side. 
     Embodiments of the present application also provide a device for stopping sending a schedule request, see  FIG.  12   , including at least a determining device  1201  and a sending stop device  1202 . The determining device  1201  is configured to determine a delay requirement of the specific target, in response to a demand for requesting from a network side resource scheduling for information of a specific target; and the sending stop device  1202  is configured to stop sending the SR, when it is determined that the delay requirement of the specific target is not met before the SR is sent to the network side. 
     In one embodiment, the determining device  1201  is configured to: when the specific target is a logical channel, determine a delay requirement from a QoS parameter corresponding to the logical channel; or, when the specific target is an MAC CE, determine a delay requirement of the MAC CE. 
     In one embodiment, the determining device  1201  is configured to determine the delay requirement of the MAC CE via protocol or network side configuration. 
     In one embodiment, the sending stop device  1202  is configured to: determining, based on a set time offset, whether the delay requirement of the specific target is met; where the time offset is a duration from sending the SR to determining an SL resource allocated by a network side. 
     In one embodiment, the sending stop device  1202  is further configured to: determine the time offset via protocol or network side configuration. 
     In one embodiment, the sending stop device  1202  is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a remaining duration of a timer is equal to the time offset; where the duration of the timer is set according to the delay requirement, and a starting time of the timer is the time when it is determined that resource scheduling for the information of the specific target needs to be requested from the network side. 
     In one embodiment, the sending stop device  1202  is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when a duration of a time counter is equal to a time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the sending stop device  1202  is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the time difference between the delay requirement of the specific target and the time offset. 
     In one embodiment, the sending stop device  1202  is configured to: determine that the delay requirement of the specific target is not met in response to the SR being not sent when it is determined that a time difference, between a current time when resource scheduling for the information of the specific target is requested from the network side and a trigger time when resource scheduling for the information of the specific target is requested from the network side, is greater than the delay requirement of the specific target. 
     In one embodiment, after determining that the delay requirement of the specific target is not met, and before stopping sending the SR, the sending stop device  1202  is further configured to: randomly request resource scheduling for the information of the specific target from the network side. 
     Embodiments of the present application provide a storage medium including at least computer-readable instructions which, when read and executed by a computer, cause the computer to perform the aforementioned method for stopping sending the schedule request. 
     In summary, in response to a demand for requesting from a network side resource scheduling for information of a specific target, a delay requirement of the specific target is determined; and before an SR is sent to the network side, when it is determined that the delay requirement of the specific target is not met, SR sending is stopped. In this way, before an SR is sent to a network side, when it is determined that a delay requirement of a specific target is not met, sending of the SR is stopped in advance, and the acquisition timeout of schedule resource information sent by the network side can be avoided. 
     The program products may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any combination of the foregoing. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. 
     The program product for service control according to the embodiments of the present application may employ the portable CD-ROM and include program code, and may be run on a computing device. However, the program product of the present application is not limited to this, and in this document, the readable storage medium may be any tangible medium that contains or stores a program for use by or in combination with a command execution system, device, or apparatus. 
     The readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier wave, in which the readable program code is carried. This propagated data signal may take many forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The readable signal medium may also be any readable medium other than a readable storage medium that may send, propagate, or transmit a program for use by or in combination with a command execution system, device, or apparatus. 
     The program code contained on the readable medium may be transmitted by any suitable medium, including but not limited to a wireless, wired, optical cable, or RF medium, or any suitable combination thereof. 
     The program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object-oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the “C” programming language or similar programming languages. The program code may execute entirely on the user computing device, or partly on the user apparatus, and as a stand-alone software package, partly on the user computing device, partly on a remote computing device or entirely on the remote computing device or server. In the scenario involving the remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computing device (for example, through the Internet using an Internet Service Provider).