Method and device for determining and configuring scheduling request resource, and storage medium
View Patent ↗Disclosed are a method and device for determining and configuring a scheduling request resource, and a storage medium. The method comprises: a network side configuring a mapping relationship between a QoS parameter of a direct communication Sidelink interface and a scheduling request resource of a Uu interface; the network side notifying a terminal of the mapping relationship; the terminal receiving the mapping relationship, configured by the network side, between the QoS parameter of the direct communication Sidelink interface and the scheduling request resource of the Uu interface; and the terminal determining whether the Sidelink interface triggers a scheduling request, and if the scheduling request is triggered, determining, according to a QoS parameter of a logic channel of the Sidelink interface triggering the scheduling request and the mapping relationship, the scheduling request resource of the Uu interface to be used. According to the present application, when the terminal triggers the scheduling request, the terminal can determine which scheduling request resource is selected for sending, so that the problem of selecting the scheduling request resource triggered on a direct communication link is solved.
1. A method for determining Scheduling Request, SR, resource, comprising:
receiving, by a user equipment, a mapping relationship between Quality of Service, QoS, parameters of a Sidelink interface and SR resources of a Uu interface configured by a network side;
determining, by the user equipment, whether the Sidelink interface triggers an SR, and when the SR is triggered, then determining an SR resource of the Uu interface to be used according to a logical channel of the Sidelink interface that triggers the SR and the mapping relationship;
wherein the mapping relationship received by the user equipment is a mapping relationship between QoS parameters corresponding to a destination identifier and SR resources of the Uu interface;
wherein determining the SR resource of the Uu interface to be used according to the logical channel of the Sidelink interface that triggers the SR and the mapping relationship, comprises:
determining a corresponding destination identifier according to a Sidelink logical channel that triggers the SR, and determining the SR resource to be used according to a mapping relationship between QoS parameters corresponding to the destination identifier and SR resources of the Uu interface.
2. The method of claim 1 , wherein the QoS parameters of the Sidelink interface are one or a combination of:
ProSe Per-Packet Priority, PPPP, of the Sidelink interface; ProSe Per-Packet Reliability, PPPR, of the Sidelink interface; data Packet Delay Budget, PDB, of the Sidelink interface; other QoS parameters introduced for the Sidelink interface in subsequent protocol versions of R15.
3. The method of claim 1 , wherein the SR resource is a time/frequency-domain resource, or a time/frequency-domain resource indicated by a time/frequency-domain resource index.
4. The method of claim 1 , wherein determining, by the user equipment, whether the Sidelink interface triggers the SR, comprises:
determining that the SR is triggered when the user equipment has a Regular Sidelink Buffer Status Report, BSR, to be triggered and has no available uplink resource.
5. The method of claim 1 , wherein an SR resource allocation mode on the Uu interface is:
on Uu interface, a SR resource used for the Uu interface and a SR resource used for the Sidelink interface are not distinguished in a time domain and/or frequency domain; or
on Uu interface, a SR resource used for the Uu interface and a SR resource used for the Sidelink interface are isolated in a time domain and/or frequency domain.
6. The method of claim 1 , further comprising:
reporting, by the user equipment, auxiliary information to the network side, the auxiliary information is used by the network side to configure the mapping relationship.
7. The method of claim 6 , wherein the auxiliary information comprises one or a combination of:
QoS parameters corresponding to a current logical channel of the Sidelink interface of the user equipment; or
QoS parameters corresponding to a current logical channel of the Sidelink interface of the user equipment and a Sidelink Destination ID.
8. The method of claim 1 , wherein determining the SR resource of the Uu interface to be used according to the logical channel of the Sidelink interface that triggers the SR and the mapping relationship, comprises:
when a Regular Sidelink BSR is triggered by expiry of a retxBSR-Timer, then selecting a Sidelink logical channel that has data to be transmitted currently and has a highest priority as the logical channel of the Sidelink interface that triggers the SR.
9. The method of claim 1 , wherein when the user equipment has a plurality of Sidelink logical channels that trigger SRs and the plurality of Sidelink logical channels correspond to different SR resources, the SR resource is selected in one of following ways:
when multiple SR resources are allowed to be selected, using different SR resources corresponding to the plurality of Sidelink logical channels for SRs; or
when only one SR resource is allowed to be used, selecting according to a following principle:
selecting a Sidelink logical channel that triggers an SR currently and has a highest priority, and determining the SR resource according to QoS parameters of the selected Sidelink logical channel and the mapping relationship; or, after selecting QoS parameters of a Sidelink logical channel that triggers an SR currently, selecting a SR resource closest to a current time among SR resources corresponding to the selected QoS parameters.
10. A method for configuring SR transmitting resource, comprising:
configuring, by a network side, a mapping relationship between QoS parameters of a Sidelink interface and SR resources of a Uu interface; wherein the mapping relationship is a mapping relationship between QoS parameters corresponding to a destination identifier and SR resources of the Uu interface;
notifying, by the network side, the mapping relationship to a user equipment, wherein the mapping relationship is used by the user equipment to determine a corresponding destination identifier according to a Sidelink logical channel that triggers an SR, and determine an SR resource to be used according to a mapping relationship between QoS parameters corresponding to the destination identifier and SR resources of the Uu interface.
11. The method of claim 10 , wherein the QoS parameters of the Sidelink interface are one or a combination of:
PPPP, PPPR, PDB, other QoS parameters introduced for the Sidelink interface in subsequent protocol versions of R15.
12. The method of claim 10 , wherein the SR resource is a time/frequency-domain resource, or a time/frequency-domain resource indicated by a time/frequency-domain resource index.
13. The method of claim 10 , wherein an SR resource allocation mode on the Uu interface is:
on Uu interface, a SR resource used for the Uu interface and a SR resource used for the Sidelink interface are not distinguished in a time domain and/or frequency domain; or
on Uu interface, a SR resource used for the Uu interface and a SR resource used for the Sidelink interface are isolated in a time domain and/or frequency domain.
14. The method of claim 10 , further comprising:
after receiving auxiliary information reported by the user equipment to the network side, configuring, by the network side, the mapping relationship based on the auxiliary information.
15. The method of claim 14 , wherein the auxiliary information comprises one or a combination of:
QoS parameters corresponding to a current logical channel of the Sidelink interface of the user equipment; or
QoS parameters corresponding to a current logical channel of the Sidelink interface of the user equipment and a Sidelink Destination ID.
16. A user equipment, comprising:
a processor configured to read programs in a memory to perform the process of:
after receiving a mapping relationship between QoS parameters of a Sidelink interface and Scheduling Request, SR, resources of a Uu interface configured by a network side, determining whether the Sidelink interface triggers an SR, and when the SR is triggered, then determining a SR resource of the Uu interface to be used according to a logical channel of the Sidelink interface that triggers the SR and the mapping relationship;
a transceiver configured to receive and transmit data under control of the processor;
wherein the mapping relationship is a mapping relationship between QoS parameters corresponding to a destination identifier and SR resources of the Uu interfaced;
wherein determining the SR resource of the Uu interface to be used according to the logical channel of the Sidelink interface that triggers the SR and the mapping relationship, comprises:
determining a corresponding destination identifier according to a Sidelink logical channel that triggers the SR, and determining the SR resource to be used according to a mapping relationship between QoS parameters corresponding to the destination identifier and SR resources of the Uu interface.
17. A base station, comprising:
a processor configured to read programs in a memory to perform the process of:
configuring a mapping relationship between QoS parameters of a Sidelink interface and SR resources of a Uu interface; wherein the mapping relationship is a mapping relationship between QoS parameters corresponding to a destination identifier and SR resources of the Uu interface
a transceiver configured to receive and transmit data under control of the processor to perform the process of:
notifying the mapping relationship to a user equipment, wherein the mapping relationship is used by the user equipment to determine a corresponding destination identifier according to a Sidelink logical channel that triggers an SR, and determine an SR resource to be used according to a mapping relationship between QoS parameters corresponding to the destination identifier and SR resources of the Uu interface.