Method, device and system for triggering scheduling request

Abstract

The embodiments of the present application provide a method, device, and system for triggering SR, which can meet the QoS requirements of different services in the NRV2X system while avoiding or reducing unnecessary SR triggering. The method includes: a network device sends a first message to a terminal device, the first message including a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is an identifier of a first logical channel; the first logical channel is a logical channel of a sidelink radio bearer. Alternatively, there is a mapping relationship between the first identifier and the first logical channel, such as the first identifier is an identifier of a logical channel group to which the first logical channel belongs. After the terminal device receives the first message from the network device, if the first logical channel triggers a first regular sidelink buffer status report SLBSR and has not been canceled, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier.

Description

[0001] This application is a divisional application. The application number of the original application is 201910016842.9, and the original application date is January 8, 2019. The entire content of the original application is incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of communication technologies, and in particular to a method, device, and system for triggering a scheduling request (SR). Background Art

[0003] In the long term evolution (LTE) system or the new radio (NR) system, the communication interface between the terminal device and the base station is called the Uu port. The link on the Uu port that the terminal device sends data to the base station is called the uplink (UL), and the link that the terminal device receives data sent by the base station is called the downlink (DL). In addition, the communication interface between terminal devices is called the PC5 port. The link that transmits data between terminal devices on the PC5 port is called the sidelink (SL). The PC5 port is generally used in scenarios where direct communication between devices is possible, such as vehicle to everything (V2X).

[0004] NR V2X systems must support unicast, multicast, and broadcast transmission services. Furthermore, different services have varying latency requirements. For example, some services require a latency of 3ms, while others require 100ms. If SR is triggered using the same SR triggering mechanism for sidelink data in the LTE V2X system, some latency-critical services may not be able to request sidelink resources in a timely manner, thus failing to meet their data transmission latency requirements. Summary of the Invention

[0005] The embodiments of the present application provide a method, device, and system for triggering SR, which can meet the QoS requirements of different services in the NRV2X system while avoiding or reducing unnecessary SR triggering.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In the first aspect, a method for triggering a scheduling request SR is provided, the method comprising: a terminal device receives a first message from a network device, the first message including a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is an identifier of a first logical channel, or the first identifier has a mapping relationship with the first logical channel, and the first logical channel is a logical channel of a sidelink radio bearer; if the first logical channel triggers a first conventional sidelink buffer status report SLBSR and has not been canceled, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier. Based on the SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0008] In combination with the first aspect, in one possible design, if there is a mapping relationship between the first identifier and the identifier of the first logical channel, the first message also includes or indicates the mapping relationship between the first identifier and the identifier of the first logical channel. Furthermore, the terminal device can obtain the mapping relationship between the first identifier and the identifier of the first logical channel.

[0009] In conjunction with the first aspect or a possible design of the first aspect, in one possible design, the first message further includes destination information, wherein the first identifier is associated with the destination information. The destination information is used to enable the terminal device to distinguish the destination to which the first identifier belongs, thereby triggering an SR based on the destination information, the first identifier, and one or more configuration parameters corresponding to the first identifier.

[0010] In conjunction with the first aspect or a possible design of the first aspect, in one possible design, the first message further includes source information and destination information, wherein the first identifier is associated with the source information, and the first identifier is associated with the destination information. The source information and the destination information are used to allow the terminal device to distinguish the combination of the source and destination to which the first identifier belongs, thereby triggering SR based on the combination of the source information and the destination information, the first identifier, and one or more configuration parameters corresponding to the first identifier.

[0011] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of sidelink subcarrier spacings to which the sidelink SL media access control MAC service data unit SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the physical sidelink shared channel PSSCH authorization for transmitting the SL MAC SDU from the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0012] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel. The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the third condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: condition a, the condition a is that the first parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; condition b: the condition b is that the second parameter corresponding to the identifier of the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0013] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0014] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel. The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fourth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: condition c, the condition c is that the fourth parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition d: the condition d is that the fifth parameter corresponding to the identifier of the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the fifth parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0015] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0016] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifth condition, the fifth condition is that the terminal device has the second uplink authorization, and there is a sixth parameter corresponding to the identifier of the first logical channel, but the second uplink authorization does not meet the restrictions of the logical channel priority processing LCP mapping configured for the second logical channel mapped by the first logical channel. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0017] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following seventh parameter: a seventh parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0018] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the sixth condition, the sixth condition is that the terminal device has the second uplink authorization, and there is the seventh parameter corresponding to the identifier of the first logical channel, the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0019] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0020] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the seventh condition, the seventh condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0021] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is an identifier of the logical channel group to which the first logical channel belongs.

[0022] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a ninth parameter, which is used to indicate a list of sidelink subcarrier spacings to which the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group can be mapped; a tenth parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0023] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that The logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is the first uplink authorization; the ninth condition, the ninth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: condition e, the condition e is that there is the ninth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the ninth parameter; condition f: the condition f is that there is the tenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the tenth parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0024] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a twelfth parameter, which is used to indicate a list of uplink subcarrier spacings mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; a thirteenth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channels of the sidelink radio bearers contained in the logical channel group are allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0025] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical The logical channels of the sidelink radio bearers included in the channel group are allowed to trigger SR when there is the first uplink authorization; the tenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: condition g, the condition g is that there is the twelfth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the twelfth parameter; condition h: the condition h is that there is the thirteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the thirteenth parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0026] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourteenth parameter, which is used to indicate the identifier of the logical channel of the uplink radio bearer mapped to the logical channel of the sidelink radio bearer contained in the logical channel group; an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0027] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the first uplink authorization; the eleventh condition, the eleventh condition is that the terminal device has the second uplink authorization, and there is the fourteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the second uplink authorization does not meet the LCP mapping restriction configured for the logical channel of the uplink radio bearer mapped by the logical channel group to which the first logical channel belongs. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0028] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following fifteenth parameter: the fifteenth parameter, which is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0029] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the twelfth condition, the twelfth condition is that the terminal device has the second uplink authorization, and there is the fifteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the fifteenth parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the second uplink authorization. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0030] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following sixteenth parameter: a sixteenth parameter, the sixteenth parameter being a second time threshold.

[0031] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the thirteenth condition, the thirteenth condition is that the terminal device has the second uplink authorization, and there is a sixteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the sixteenth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SL BSR MAC CE.

[0032] In combination with the first aspect or a possible design of the first aspect, in one possible design, the first identifier is the identifier of the sidelink radio bearer; or, the first identifier is the identifier of the quality of service QoS flow mapped by the sidelink radio bearer; or, the first identifier is the QoS index of the QoS information associated with the sidelink radio bearer.

[0033] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of subcarrier spacings of the side link to which the SLMAC SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SLMAC SDU from the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0034] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, the The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: Condition i, the condition i is that the first parameter corresponding to the first identifier associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; Condition j: the condition j is that the second parameter corresponding to the first identifier associated with the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0035] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0036] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, the The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the sixteenth condition, the sixteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any of the following conditions: condition m, the condition m is that the fourth parameter corresponding to the first identifier associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition n: the condition n is that the fifth parameter corresponding to the first identifier associated with the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0037] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0038] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the seventeenth condition, the seventeenth condition is that the terminal device has the second uplink authorization, and there is the sixth parameter corresponding to the first identifier associated with the first logical channel, but the second uplink authorization does not meet the restrictions of the LCP mapping configured for the second logical channel mapped by the first logical channel. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0039] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following seventh parameter: a seventh parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0040] In combination with the first aspect or a possible design of the first aspect, in one possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the eighteenth condition, the eighteenth condition is that the terminal device has the second uplink authorization, and there is the seventh parameter corresponding to the first identifier associated with the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0041] In combination with the first aspect or a possible design of the first aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0042] In combination with the first aspect or a possible design of the first aspect, in a possible design, the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the terminal device triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the nineteenth condition, the nineteenth condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first identifier associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE. Based on this SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0043] According to the second aspect, a terminal device is provided, which includes a processing module and a transceiver module; the transceiver module is used to receive a first message from a network device, the first message including a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is an identifier of a first logical channel, or there is a mapping relationship between the first identifier and the first logical channel, and the first logical channel is a logical channel of a sidelink radio bearer; the processing module is used to trigger an SR according to the first identifier and one or more configuration parameters corresponding to the first identifier if the first logical channel triggers a first regular sidelink buffer status report SLBSR and has not been canceled.

[0044] In combination with the second aspect, in a possible design, if there is a mapping relationship between the first identifier and the identifier of the first logical channel, the first message also includes or indicates the mapping relationship between the first identifier and the identifier of the first logical channel.

[0045] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first message also includes destination information, wherein the first identifier is associated with the destination information.

[0046] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first message also includes source information and destination information, wherein the first identifier is associated with the source information, and the first identifier is associated with the destination information.

[0047] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of sidelink subcarrier spacings to which the sidelink SL media access control MAC service data unit SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the physical sidelink shared channel PSSCH authorization for transmitting the SL MAC SDU from the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0048] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel , the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the third condition, the third condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: Condition a, the condition a is that there is the first parameter corresponding to the identifier of the first logical channel, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; Condition b: the condition b is that there is the second parameter corresponding to the identifier of the first logical channel, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0049] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0050] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel , the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fourth condition, the fourth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition c, the condition c is that there is the fourth parameter corresponding to the identifier of the first logical channel, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition d: the condition d is that there is the fifth parameter corresponding to the identifier of the first logical channel, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the fifth parameter.

[0051] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0052] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifth condition, the fifth condition is that the terminal device has the second uplink authorization, and there is the sixth parameter corresponding to the identifier of the first logical channel, but the second uplink authorization does not meet the restrictions of the logical channel priority processing LCP mapping configured for the second logical channel mapped by the first logical channel.

[0053] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following seventh parameter; the seventh parameter, the seventh parameter is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0054] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR based on the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR based on the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the sixth condition, the sixth condition is that the terminal device has the second uplink authorization, and there is a seventh parameter corresponding to the identifier of the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization.

[0055] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0056] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the seventh condition, the seventh condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE.

[0057] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is an identifier of the logical channel group to which the first logical channel belongs.

[0058] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a ninth parameter, which is used to indicate a list of sidelink subcarrier spacings to which the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group can be mapped; a tenth parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0059] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel group The logical channels of the sidelink radio bearers included in the logical channel group are allowed to trigger SR when there is the first uplink authorization; the ninth condition, the ninth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition e, the condition e is that there is the ninth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the ninth parameter; condition f: the condition f is that there is the tenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the tenth parameter.

[0060] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a twelfth parameter, which is used to indicate a list of uplink subcarrier spacings mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; a thirteenth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channels of the sidelink radio bearers contained in the logical channel group are allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0061] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel group is a first logical channel. The logical channels of the sidelink radio bearers contained in the channel group are allowed to trigger SR when there is the first uplink authorization; the tenth condition, the tenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition g, the condition g is that there is the twelfth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the twelfth parameter; condition h: the condition h is that there is the thirteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the thirteenth parameter.

[0062] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourteenth parameter, which is used to indicate the identifier of the logical channel of the uplink radio bearer mapped to the logical channel of the sidelink radio bearer contained in the logical channel group; an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0063] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the first uplink authorization; the eleventh condition, the eleventh condition is that the terminal device has the second uplink authorization, and there is the fourteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the second uplink authorization does not meet the LCP mapping restriction configured for the logical channel of the uplink radio bearer mapped by the logical channel group to which the first logical channel belongs.

[0064] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following fifteenth parameter: the fifteenth parameter, which is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0065] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the twelfth condition, the twelfth condition is that the terminal device has the second uplink authorization, and there is a fifteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the fifteenth parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the second uplink authorization.

[0066] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following sixteenth parameter: a sixteenth parameter, the sixteenth parameter being a second time threshold.

[0067] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the thirteenth condition, the thirteenth condition is that the terminal device has the second uplink authorization, and there is a sixteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the sixteenth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SL BSR MAC CE.

[0068] In combination with the second aspect or a possible design of the second aspect, in one possible design, the first identifier is the identifier of the sidelink radio bearer; or, the first identifier is the identifier of the quality of service QoS flow mapped by the sidelink radio bearer; or, the first identifier is the QoS index of the QoS information associated with the sidelink radio bearer.

[0069] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of subcarrier spacings of the side link to which the SLMAC SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SLMAC SDU from the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0070] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, the fourteenth condition The values ​​of the three parameters indicate that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifteenth condition, the fifteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: Condition i, the condition i is that the first parameter corresponding to the first identifier associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; Condition j: the condition j is that the second parameter corresponding to the first identifier associated with the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0071] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0072] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, the fourteenth condition The values ​​of the three parameters indicate that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the sixteenth condition, the sixteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition m, the condition m is that the fourth parameter corresponding to the first identifier associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition n: the condition n is that the fifth parameter corresponding to the first identifier associated with the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0073] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0074] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is a third parameter corresponding to the first identifier associated with the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the seventeenth condition, the seventeenth condition is that the terminal device has the second uplink authorization, and there is the sixth parameter corresponding to the first identifier associated with the first logical channel, but the second uplink authorization does not meet the restrictions of the LCP mapping configured for the second logical channel mapped by the first logical channel.

[0075] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following seventh parameter: a seventh parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0076] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR based on the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR based on the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the eighteenth condition, the eighteenth condition is that the terminal device has the second uplink authorization, and there is the seventh parameter corresponding to the first identifier associated with the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization.

[0077] In combination with the second aspect or a possible design of the second aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0078] In combination with the second aspect or a possible design of the second aspect, in one possible design, the processing module is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the nineteenth condition, the nineteenth condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first identifier associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE.

[0079] Among them, the technical effects of the second aspect can refer to the technical effects of the first aspect mentioned above, and will not be repeated here.

[0080] According to a third aspect, a terminal device is provided, which includes a processor and a communication interface, wherein the processor is connected to the communication interface for communication, wherein the processor receives a first message from a network device through the communication interface, wherein the first message includes a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is an identifier of a first logical channel, or the first identifier has a mapping relationship with the first logical channel, and the first logical channel is a logical channel of a sidelink radio bearer; furthermore, if the first logical channel triggers a first regular sidelink buffer status report SLBSR and has not been canceled, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier. In combination with the third aspect, in a possible design, if there is a mapping relationship between the first identifier and the identifier of the first logical channel, the first message also includes or indicates the mapping relationship between the first identifier and the identifier of the first logical channel.

[0081] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first message also includes destination information, wherein the first identifier is associated with the destination information.

[0082] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first message also includes source information and destination information, wherein the first identifier is associated with the source information, and the first identifier is associated with the destination information.

[0083] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of sidelink subcarrier spacings to which the sidelink SL media access control MAC service data unit SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the physical sidelink shared channel PSSCH authorization for transmitting the SL MAC SDU from the first logical channel; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0084] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel, The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the third condition, the third condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: Condition a, the condition a is that the first parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; Condition b: the condition b is that the second parameter corresponding to the identifier of the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0085] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0086] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the identifier of the first logical channel, The value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fourth condition, the fourth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition c, the condition c is that the fourth parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition d: the condition d is that the fifth parameter corresponding to the identifier of the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the fifth parameter.

[0087] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0088] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the second condition, the second condition is that the terminal device has the first uplink authorization, and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifth condition, the fifth condition is that the terminal device has the second uplink authorization, and there is the sixth parameter corresponding to the identifier of the first logical channel, but the second uplink authorization does not meet the restrictions of the logical channel priority processing LCP mapping configured for the second logical channel mapped by the first logical channel.

[0089] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following seventh parameter; the seventh parameter, the seventh parameter is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0090] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the sixth condition, the sixth condition is that the terminal device has the second uplink authorization, and there is a seventh parameter corresponding to the identifier of the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization.

[0091] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the first logical channel, and the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0092] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor is used to trigger SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the seventh condition, the seventh condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE.

[0093] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is an identifier of the logical channel group to which the first logical channel belongs.

[0094] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a ninth parameter, which is used to indicate a list of sidelink subcarrier spacings to which the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group can be mapped; a tenth parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SL MAC SDU of the logical channel of the sidelink radio bearer contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0095] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical The logical channels of the sidelink radio bearers included in the channel group are allowed to trigger SR when there is the first uplink authorization; the ninth condition, the ninth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition e, the condition e is that there is the ninth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the ninth parameter; condition f: the condition f is that there is the tenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the tenth parameter.

[0096] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a twelfth parameter, which is used to indicate a list of uplink subcarrier spacings mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; a thirteenth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the logical channels of the sidelink radio bearers contained in the logical channel group; and an eleventh parameter, which is used to indicate whether the logical channels of the sidelink radio bearers contained in the logical channel group are allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0097] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel The logical channels of the sidelink radio bearers included in the group are allowed to trigger SR when there is the first uplink authorization; the tenth condition, the tenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition g, the condition g is that there is a twelfth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the twelfth parameter; condition h: the condition h is that there is a thirteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the thirteenth parameter.

[0098] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourteenth parameter, which is used to indicate the identifier of the logical channel of the uplink radio bearer mapped to the logical channel of the sidelink radio bearer contained in the logical channel group; an eleventh parameter, which is used to indicate whether the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0099] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the eighth condition, the eighth condition is that the terminal device has the first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the first uplink authorization; the eleventh condition, the eleventh condition is that the terminal device has the second uplink authorization, and there is the fourteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the second uplink authorization does not meet the LCP mapping restriction configured for the logical channel of the uplink radio bearer mapped by the logical channel group to which the first logical channel belongs.

[0100] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following fifteenth parameter: the fifteenth parameter, which is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0101] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the twelfth condition, the twelfth condition is that the terminal device has the second uplink authorization, and there is a fifteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the fifteenth parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is the second uplink authorization.

[0102] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following sixteenth parameter: a sixteenth parameter, the sixteenth parameter being a second time threshold.

[0103] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the thirteenth condition, the thirteenth condition is that the terminal device has the second uplink authorization, and there is a sixteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the sixteenth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SL BSR MAC CE.

[0104] In combination with the third aspect or a possible design of the third aspect, in one possible design, the first identifier is the identifier of the sidelink radio bearer; or, the first identifier is the identifier of the quality of service QoS flow mapped by the sidelink radio bearer; or, the first identifier is the QoS index of the QoS information associated with the sidelink radio bearer.

[0105] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a first parameter, which is used to indicate a list of subcarrier spacings of the side link to which the SLMAC SDU from the first logical channel can be mapped; a second parameter, which is used to indicate the maximum duration of the PSSCH authorization for transmitting the SLMAC SDU from the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0106] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, and the third condition is satisfied. The value of the parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the fifteenth condition, the fifteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: Condition i, the condition i is that the first parameter corresponding to the first identifier associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the first parameter; Condition j: the condition j is that the second parameter corresponding to the first identifier associated with the first logical channel exists, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0107] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a fourth parameter, which is used to indicate a list of subcarrier spacings of the uplink mapped by the first logical channel; a fifth parameter, which is used to indicate the maximum duration of the uplink authorization mapped by the first logical channel; and a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0108] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, and the third condition is satisfied. The value of the parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the sixteenth condition, the sixteenth condition is that the terminal device has the second uplink authorization, but the second uplink authorization does not meet any one of the following conditions: condition m, the condition m is that there is the fourth parameter corresponding to the first identifier associated with the first logical channel, but the subcarrier spacing associated with the second uplink authorization is not included in the value set of the fourth parameter; condition n: the condition n is that there is the fifth parameter corresponding to the first identifier associated with the first logical channel, but the duration of the PUSCH associated with the second uplink authorization is greater than the value of the second parameter.

[0109] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include one or more of the following parameters: a sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the first logical channel, and the second logical channel is a logical channel of the uplink wireless bearer; a third parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization.

[0110] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the fourteenth condition, the fourteenth condition is that the terminal device has the first uplink authorization, and there is the third parameter corresponding to the first identifier associated with the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is the first uplink authorization; the seventeenth condition, the seventeenth condition is that the terminal device has the second uplink authorization, and there is the sixth parameter corresponding to the first identifier associated with the first logical channel, but the second uplink authorization does not meet the restrictions of the LCP mapping configured for the second logical channel mapped by the first logical channel.

[0111] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following seventh parameter: a seventh parameter, which is used to indicate whether the first logical channel is allowed to trigger SR when there is a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission.

[0112] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have the second uplink authorization; the eighteenth condition, the eighteenth condition is that the terminal device has the second uplink authorization, and there is the seventh parameter corresponding to the first identifier associated with the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is the second uplink authorization.

[0113] In combination with the third aspect or a possible design of the third aspect, in one possible design, the one or more configuration parameters corresponding to the first identifier include the following eighth parameter: an eighth parameter, the eighth parameter being the first time threshold.

[0114] In combination with the third aspect or a possible design of the third aspect, in one possible design, the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier, including: the processor triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any one of the following conditions is met: the first condition, the first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission; the nineteenth condition, the nineteenth condition is that the terminal device has the second uplink authorization, and there is an eighth parameter corresponding to the first identifier associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE.

[0115] Among them, the technical effects of the third aspect can refer to the technical effects of the first aspect mentioned above, and will not be repeated here.

[0116] In a fourth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium. When the computer-readable storage medium is run on a computer, the computer can execute the method described in the first aspect.

[0117] In a fifth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method described in the first aspect.

[0118] In a sixth aspect, a communication device (e.g., a chip or a chip system) is provided, wherein the communication device includes a processor for implementing the functions described in the first aspect. In one possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it can be composed of a chip or include a chip and other discrete components.

[0119] Among them, the technical effects brought about by any design method in the fourth to sixth aspects can refer to the technical effects brought about by the different design methods in the above-mentioned first aspect, and will not be repeated here.

[0120] In a seventh aspect, a communication system is provided, which includes a network device and the terminal device described in the second or third aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0121] Figure 1a This is a schematic diagram of the communication scheduling of the existing PC5 port;

[0122] Figure 1b Schematic diagram 1 of the problems that may be caused by the existing SR triggering mechanism;

[0123] Figure 1c This is an illustration of the problems that may occur with the existing SR trigger mechanism. Figure 2 ;

[0124] Figure 2 A schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0125] Figure 3 A schematic diagram of the structure of the terminal device and network device provided in the embodiment of the present application;

[0126] Figure 4 Another schematic diagram of the structure of the terminal device provided in an embodiment of the present application;

[0127] Figure 5 A flowchart of a method for triggering SR provided in an embodiment of the present application;

[0128] Figure 6 Another structural diagram of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0129] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Among them, in the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship. For example, A / B can represent A or B; "and / or" in the present application is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple. In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0130] The technical solutions of the embodiments of the present application can be applied to various communication systems. For example: orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. The term "system" can be interchangeable with "network". The OFDMA system can implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA) and ultra mobile broadband (UMB). E-UTRA is an evolved version of the universal mobile telecommunications system (UMTS). The 3rd Generation Partnership Project (3GPP) in the long term evolution (LTE) and various versions based on LTE evolution are new versions using E-UTRA. The 5G communication system is the next generation communication system under research, which can also be called the NR system. Among them, the 5G communication system includes a non-standalone (NSA) 5G mobile communication system, an independent (SA) 5G mobile communication system, or an NSA 5G mobile communication system and an SA 5G mobile communication system. In addition, the communication system can also be applicable to future-oriented communication technologies, and the technical solutions provided in the embodiments of this application are applicable. The above-mentioned communication systems applicable to this application are only examples, and the communication systems applicable to this application are not limited to this. They are uniformly described here and will not be repeated below.

[0131] like Figure 2 As shown, a communication system 20 provided in an embodiment of the present application is provided. The communication system 20 includes a network device 30 and one or more terminal devices 40 connected to the network device 30. Different terminal devices 40 can communicate with each other.

[0132] by Figure 2Taking the interaction between the network device 30 shown and any terminal device 40 as an example, in an embodiment of the present application, the network device configures the conditions for triggering SR for the terminal device. Specifically, the network device 30 sends a first message to the terminal device 40, and the first message includes a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is the identifier of the first logical channel, or there is a mapping relationship between the first identifier and the first logical channel, and the first logical channel is the logical channel of the side link radio bearer. Furthermore, after the terminal device 40 receives the first message from the network device 30, if the first logical channel triggers the first SLBSR and has not been canceled, the terminal device 40 triggers SR according to the first identifier and one or more configuration parameters corresponding to the first identifier. The detailed description of the above scheme will refer to the subsequent method embodiment section and will not be repeated here. Based on the SR triggering mechanism, the QoS requirements of different services in the NRV2X system can be met, and unnecessary SR triggering can be avoided or reduced.

[0133] Optionally, the network device 30 in the embodiment of the present application is a device that connects the terminal device 40 to the wireless network, which can be an evolutionary base station (eNB or eNodeB) in long term evolution (LTE); or a base station in the fifth generation (5G) network or a future evolved public land mobile network (PLMN), a broadband network gateway (BNG), an aggregation switch or a non-third generation partnership project (3GPP) access device, etc., which is not specifically limited in the embodiment of the present application. Optionally, the base station in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, etc., which is not specifically limited in the embodiment of the present application.

[0134] Optionally, the terminal device 40 in the embodiment of the present application may be a device for implementing wireless communication functions, such as a terminal or a chip that can be used in a terminal. The terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal device in a 5G network or a future evolved PLMN. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device or wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal or vehicle in self-driving, a wireless terminal in remote medical care, a wireless terminal in smart grids, a wireless terminal in transportation safety, a wireless terminal in smart cities, a wireless terminal in smart homes, etc. The terminal may be mobile or fixed.

[0135] Optionally, the network device 30 and the terminal device 40 in the embodiment of the present application can also be referred to as a communication device, which can be a general device or a dedicated device, and the embodiment of the present application does not make specific limitations on this.

[0136] Optional, such as Figure 3 , which is a schematic diagram of the structure of the network device 30 and the terminal device 40 provided in an embodiment of the present application.

[0137] The terminal device 40 includes at least one processor ( Figure 3 The exemplary embodiment includes a processor 401 as an example) and at least one transceiver ( Figure 3 Optionally, the terminal device 40 may further include at least one memory ( Figure 3 The example includes a memory 402 as an example), at least one output device ( Figure 3The example includes an output device 404 as an example) and at least one input device ( Figure 3 The example is described by taking an input device 405 as an example).

[0138] The processor 401, the memory 402 and the transceiver 403 are connected via a communication line. The communication line may include a path to transmit information between the above components.

[0139] The processor 401 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. In a specific implementation, as an embodiment, the processor 401 may also include multiple CPUs, and the processor 401 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0140] The memory 402 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 402 may exist independently and be connected to the processor 401 via a communication line. The memory 402 may also be integrated with the processor 401.

[0141] Memory 402 is used to store computer-executable instructions for executing the solution of the present application, and is controlled by processor 401 for execution. Specifically, processor 401 is used to execute the computer-executable instructions stored in memory 402, thereby implementing the method for triggering SR described in the embodiments of the present application. Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of the present application.

[0142] The transceiver 403 may be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area network (WLAN), etc. The transceiver 403 includes a transmitter Tx and a receiver Rx.

[0143] Output device 404 communicates with processor 401 and can display information in a variety of ways. For example, output device 404 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.

[0144] The input device 405 communicates with the processor 401 and can receive user input in various ways. For example, the input device 405 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0145] The network device 30 includes at least one processor ( Figure 3 The exemplary embodiment includes a processor 301 as an example for description), at least one transceiver ( Figure 3 The exemplary embodiment includes a transceiver 303 as an example) and at least one network interface ( Figure 3 Optionally, the network device 30 may further include at least one memory ( Figure 3 The exemplary embodiment includes a memory 302 as an example for explanation). Among them, the processor 301, the memory 302, the transceiver 303 and the network interface 304 are connected through a communication line. The network interface 304 is used to connect to the core network device through a link (for example, an S1 interface), or to connect to the network interface of other network devices through a wired or wireless link (for example, an X2 interface). Figure 3In addition, the description of the processor 301, the memory 302 and the transceiver 303 can refer to the description of the processor 401, the memory 402 and the transceiver 403 in the terminal device 40, and will not be repeated here.

[0146] Combine Figure 3 The schematic structural diagram of the terminal device 40 shown is exemplary. Figure 4 A specific structural form of the terminal device 40 provided in an embodiment of the present application.

[0147] Wherein, in some embodiments, Figure 3 The functions of the processor 401 can be achieved by Figure 4 The processor 110 in is implemented.

[0148] In some embodiments, Figure 3 The function of the transceiver 403 can be achieved by Figure 4 The antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, etc. are implemented.

[0149] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in terminal device 40 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with a tuning switch.

[0150] The mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied to the terminal device 40. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110.

[0151] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (such as Wi-Fi networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc. applied on the terminal device 40. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, frequency modulate it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2. When the terminal device 40 is the first device, the wireless communication module 160 can provide a solution for NFC wireless communication applied on the terminal device 40, which means that the first device includes an NFC chip. The NFC chip can improve the NFC wireless communication function. When the terminal device 40 is the second device, the wireless communication module 160 can provide a solution for NFC wireless communication applied to the terminal device 40, which means that the first device includes an electronic tag (such as a radio frequency identification (RFID) tag). When the NFC chip of another device is close to the electronic tag, NFC wireless communication can be performed with the second device.

[0152] In some embodiments, the antenna 1 of the terminal device 40 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the terminal device 40 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology. The GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS) and / or a satellite based augmentation system (SBAS).

[0153] In some embodiments, Figure 3 The function of the memory 402 can be achieved by Figure 4 It is implemented by the internal memory 121 in the memory or the external memory (such as a Micro SD card) connected to the external memory interface 120.

[0154] In some embodiments, Figure 3 The output device 404 can be used to Figure 4The display screen 194 is implemented. The display screen 194 is used to display images, videos, etc. The display screen 194 includes a display panel. The display panel can be an LCD, an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light-emitting diode (QLED), etc. In some embodiments, the terminal device 40 may include one or N display screens 194, where N is a positive integer greater than one.

[0155] In some embodiments, Figure 3 The function of the input device 405 can be achieved by a mouse, keyboard, touch screen device or Figure 4 The sensor module 180 is implemented. For example, Figure 4 As shown, the sensor module 180 may, for example, include one or more of a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, and a bone conduction sensor 180M, and the embodiments of the present application do not specifically limit this.

[0156] In some embodiments, as Figure 4 As shown, the terminal device 40 may also include one or more of an audio module 170, a camera 193, an indicator 192, a motor 191, a button 190, a SIM card interface 195, a USB interface 130, a charging management module 140, a power management module 141 and a battery 142, wherein the audio module 170 can be connected to a speaker 170A (also called a "speaker"), a receiver 170B (also called a "handset"), a microphone 170C (also called a "microphone", "microphone") or a headphone interface 170D, etc., and the embodiments of the present application do not specifically limit this.

[0157] It is understandable that Figure 4The illustrated structure does not constitute a specific limitation on the terminal device 40. For example, in other embodiments of the present application, the terminal device 40 may include more or fewer components than shown, or may combine or separate certain components, or may have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0158] There is an SR triggering mechanism for SL grant in LTEV2X, specifically: if at least one BSR has been triggered and has not been canceled, then if within this transmission time interval (time transmission integral, TTI), the terminal device has a UL grant for new data transmission, and the UL grant can accommodate the SLBSR medium access control (MAC) control element (CE) and MAC subheader, the terminal device transmits the SLBSR through the UL grant, and the SR is not triggered at this time; otherwise, if a regular SLBSR has been triggered and the terminal device does not have a configured uplink grant (configured UL grant), the terminal device triggers the SR.

[0159] like Figure 1a As shown in the figure, for communication on the PC5 port, if the base station configures the terminal device 1 with a resource allocation method based on base station scheduling, when the terminal device 1 has sidelink data to send but no sidelink grant (SLgrant) is available, the terminal device 1 needs to trigger an SR and request an uplink grant (ULgrant) from the base station by sending an SR on the Uu port. After receiving the ULgrant, the terminal device 1 can send an SL buffer status report (BSR) to the base station based on the ULgrant for the base station to perform SLgrant scheduling.

[0160] However, the NRV2X system needs to support unicast, multicast, and broadcast services, and different services have different latency requirements. For example, some services require a latency of 3ms, while others require a latency of 100ms. If SR is triggered according to the SR triggering mechanism for SL grants in the LTEV2X system, some services with high latency requirements will not be able to request SL grants in a timely manner, resulting in failure to meet the data transmission latency requirements of these services.

[0161] For example, Figure 1bAs shown, at time T1, the terminal device receives the UL grant scheduled by the base station. The time interval K2 between the UL grant and the uplink transmission is 4ms, that is, the time interval between T1 and T3 is 4ms. The transmission duration D1=1ms of the physical uplink shared channel (PUSCH) corresponding to the UL grant. At time T2, the data of the V2X service arrives, which meets the triggering conditions of the conventional BSR and thus triggers the conventional SLBSR. However, since the terminal device has an available UL grant, it does not meet the conditions for triggering SR, and thus cannot trigger SR. It can only request the base station for the SL grant for the V2X service through the SLBSR in the uplink transmission starting at time T3. Or, as Figure 1c As shown in the figure, if the terminal device has a configured UL grant and the period is P1=20ms. At time T2, the data of the V2X service arrives, which meets the triggering conditions of the regular BSR and thus triggers the regular SLBSR. However, since the terminal device has a configured UL grant, it does not meet the conditions for triggering SR, and thus cannot trigger SR. It can only request the base station for the SL grant for the V2X service through the SLBSR in the configured UL grant starting at time T3. However, if Figure 1b or Figure 1c The data transmission of the V2X service requires a very low delay, for example 3ms, and the above process cannot meet the transmission delay requirement of the V2X service data.

[0162] Therefore, how to design an SR trigger mechanism to meet the QoS requirements of different services in the NR V2X system while avoiding or reducing unnecessary SR triggering is an urgent problem to be solved.

[0163] The following will be combined Figures 2 to 4 ,by Figure 2 The network device 30 shown interacts with any terminal device 40, where the terminal device 40 is a terminal in the NR system and the network device 30 is a base station in the NR system. The method for triggering SR provided in an embodiment of the present application is described in detail.

[0164] For example, Figure 1aAs shown, for the communication of the PC5 port, if the base station configures the terminal device 1 with a resource allocation method based on base station scheduling, then when the terminal device 1 has SL data to send but there is no available SL grant, the terminal device needs to trigger SR and request UL grant from the base station by sending SR at the Uu port. After receiving the UL grant, the terminal device 1 can send SLBSR to the base station through the UL grant, so that the base station can further allocate SL grant to the terminal device 1 according to the SLBSR, so that the terminal device 1 can send SL data on the corresponding SL grant. However, there is currently no relevant solution for how to design an SR triggering mechanism to meet the QoS requirements of different services in the NRV2X system while avoiding or reducing unnecessary SR triggering. Based on this, an embodiment of the present application provides the following method for triggering SR. Among them, the terminal devices described below can correspond to the terminal device 1 here, which are uniformly described here and will not be repeated below.

[0165] It should be noted that the message names between network elements or the names of parameters in the messages in the following embodiments of the present application are only examples, and other names may be used in specific implementations. The embodiments of the present application do not specifically limit this.

[0166] like Figure 5 As shown, a method for triggering SR provided in an embodiment of the present application includes the following steps:

[0167] S501: A base station sends a first message to a terminal device. Correspondingly, the terminal device receives the first message from the base station.

[0168] The first message includes a first identifier and one or more configuration parameters corresponding to the first identifier. The first identifier is an identifier of a first logical channel, or there is a mapping relationship between the first identifier and the first logical channel, and the first logical channel is a logical channel of a sidelink radio bearer.

[0169] Exemplarily, the first message in the embodiment of the present application may be, for example, a radio resource control (RRC) reconfiguration message.

[0170] In one possible implementation, the first message may also include destination information for the V2X service. This destination information is associated with the first identifier. This destination information allows the terminal device to distinguish the destination to which the first identifier belongs, thereby triggering an SR based on the destination information, the first identifier, and one or more configuration parameters corresponding to the first identifier.

[0171] Illustratively, the destination information in the embodiment of the present application may be, for example, a layer 2 destination identifier (destination L2 ID) or an index value mapped to a layer 2 destination identifier, which is not specifically limited in the embodiment of the present application.

[0172] It should be noted that the mapping in the embodiments of the present application can also be described as association, correspondence or binding, that is, in the embodiments of the present application, association, mapping, correspondence or binding can be understood as different expressions of the same meaning, which are explained here uniformly and will not be repeated below.

[0173] Alternatively, in another possible implementation, the first message may further include source information and destination information of the V2X service. The source information is associated with the first identifier, and the destination information is associated with the first identifier. The source information and destination information are used to allow the terminal device to distinguish the source and destination combination to which the first identifier belongs, thereby triggering an SR based on the combination of the source information and destination information, the first identifier, and one or more configuration parameters corresponding to the first identifier.

[0174] Illustratively, the source information in the embodiment of the present application may be, for example, a layer 2 source identifier (source L2 ID) or an index value of a layer 2 source identifier mapping, which is not specifically limited in the embodiment of the present application.

[0175] S502: If the first logical channel triggers a first SLBSR and the first SL BSR has not been canceled, the terminal device triggers an SR according to the first identifier and one or more configuration parameters corresponding to the first identifier.

[0176] The following describes the above method of triggering SR in detail according to different situations.

[0177] Case a: The first identifier is the identifier of the first logical channel. That is, the base station configures the parameters associated with the first logical channel for controlling SR triggering for the terminal device. The first logical channel here can be the logical channel of one or more sidelink radio bearers. The following example uses any one logical channel group as an example for explanation.

[0178] This situation a may include the following five sub-situations:

[0179] Subcase 1: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) include at least one of the following parameters:

[0180] A first parameter is used to indicate a list of sidelink subcarrier spacings to which the SLMAC service data unit (SDU) from the first logical channel can be mapped. Of course, if the base station does not configure the first parameter for the first logical channel, the SLMAC SDU from the first logical channel can be mapped to any sidelink configured / available subcarrier spacing.

[0181] The second parameter is used to indicate the maximum duration of the physical sidelink shared channel (PSSCH) authorization for transmitting the SLMAC SDU from the first logical channel. Of course, if the base station does not configure the second parameter for the first logical channel, then PSSCH of any duration can be used to transmit the SLMAC SDU from the first logical channel.

[0182] A third parameter is used to indicate whether the first logical channel is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0183] Of course, this can also be achieved by configuring a third parameter to indicate that the first logical channel is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to indicate that the first logical channel is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0184] Optionally, in an embodiment of the present application, the type of the first uplink authorization may be the current configured grant type 1 (configured grant type 1) or configured grant type 2 (configured grant type 2) or other types in the future. This is uniformly described here, and the description applies to all embodiments of the present application and will not be repeated below.

[0185] Optionally, the uplink authorization in the embodiment of the present application may also be referred to as an uplink resource (UL resource), which is uniformly described here and is applicable to all embodiments of the present application and will not be repeated below.

[0186] Optionally, only for a sidelink logical channel configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the sidelink logical channel.

[0187] Alternatively, optionally, the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the sidelink logical channel only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel for unicast transmission and / or multicast transmission.

[0188] Optionally, in an embodiment of the present application, configuring the sidelink logical channel to adopt a scheduling-based resource allocation method includes the following two methods:

[0189] Method 1: The base station configures whether to use the scheduling-based resource allocation method for the terminal device. If the base station configures the terminal device to use the scheduling-based resource allocation method, it means that all sidelink logical channels of the terminal device use the scheduling-based resource allocation method.

[0190] Method 2: Whether the base station configures each sidelink logical channel of the terminal device to adopt a scheduling-based resource allocation method.

[0191] Optionally, in the embodiment of the present application, the one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) further include at least one of the following parameters:

[0192] Parameter a, where parameter a is a QoS parameter index of at least one V2X service mapped to the first logical channel. The QoS parameter index may be, for example, a 5G QoS identifier (5QI), a V2X QoS identifier (VQI), or a QoS flow identifier (QFI). Based on parameter a, the terminal device may determine the logical channel to which a V2X service with a certain QoS requirement is mapped.

[0193] Parameter b, where parameter b is the priority of the first logical channel.

[0194] Parameter c: The parameter c is the identifier of the logical channel group to which the first logical channel belongs.

[0195] The above parameters may be included in the configuration of the first logical channel.

[0196] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0197] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0198] The second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the sidelink logical channel that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel.

[0199] The third condition is that the terminal device has the above-mentioned second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0200] Condition a: Condition a is that a first parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the first parameter;

[0201] Condition b: Condition b is that there is a second parameter corresponding to the identifier of the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the second parameter.

[0202] Subcase 2: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) include at least one of the following parameters:

[0203] A fourth parameter is used to indicate a list of uplink subcarrier spacings to which the first logical channel is mapped. Of course, if the base station does not configure the fourth parameter for the first logical channel, the uplink subcarrier spacing mapped to the first logical channel includes any uplink configured / available subcarrier spacing.

[0204] A fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the first logical channel. Of course, if the base station does not configure the fifth parameter for the first logical channel, the duration of the uplink grant mapped to the first logical channel can be any value.

[0205] A third parameter is used to indicate whether the first logical channel is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0206] Of course, this can also be achieved by configuring a third parameter to indicate that the first logical channel is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to indicate that the first logical channel is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0207] Optionally, only for a sidelink logical channel configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned fourth parameter, fifth parameter or third parameter for the sidelink logical channel.

[0208] Alternatively, optionally, the base station will configure at least one of the fourth parameter, fifth parameter or third parameter for the sidelink logical channel only when it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel for unicast transmission and / or multicast transmission.

[0209] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel using a scheduling-based resource allocation method can refer to the above sub-case 1 and will not be repeated here.

[0210] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) also include one or more of parameter a, parameter b, or parameter c. The relevant description of parameter a, parameter b, or parameter c can refer to the above sub-case 1 and will not be repeated here.

[0211] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0212] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0213] The second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the sidelink logical channel that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel.

[0214] The fourth condition is that the terminal device has the above-mentioned second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0215] Condition c, where the fourth parameter corresponding to the identifier of the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter;

[0216] Condition d: Condition d is that there is a fifth parameter corresponding to the identifier of the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter.

[0217] Subcase 3: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) include at least one of the following parameters:

[0218] A sixth parameter is used to indicate an identifier of a second logical channel to which the first logical channel is mapped, where the second logical channel is a logical channel of an uplink radio bearer. The configuration of the logical channel of the uplink radio bearer includes one or more of the following parameters for a logical channel prioritization (LCP) process:

[0219] A list of subcarrier spacings to which the uplink MAC SDUs of the logical channels of the uplink radio bearer can be mapped;

[0220] The maximum PUSCH duration of the uplink grant that can be used by the uplink MAC SDU of the logical channel of the uplink radio bearer;

[0221] Whether the uplink MAC SDU of the logical channel of the uplink radio bearer can be authorized using Type 1 configuration;

[0222] A list of serving cells to which the uplink MAC SDU of the logical channel of the uplink radio bearer can be mapped.

[0223] A third parameter is used to indicate whether the first logical channel is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0224] Of course, this can also be achieved by configuring a third parameter to indicate that the first logical channel is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to indicate that the first logical channel is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0225] Optionally, only for a sidelink logical channel configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned sixth parameter or third parameter for the sidelink logical channel.

[0226] Alternatively, optionally, the base station will configure at least one of the above-mentioned sixth parameter or third parameter for the sidelink logical channel only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel for unicast transmission and / or multicast transmission.

[0227] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel using a scheduling-based resource allocation method can refer to the above sub-case 1 and will not be repeated here.

[0228] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) also include one or more of parameter a, parameter b, or parameter c. The relevant description of parameter a, parameter b, or parameter c can refer to the above sub-case 1 and will not be repeated here.

[0229] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0230] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0231] The second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel, and the value of the third parameter indicates that the first logical channel is allowed to trigger SR when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the sidelink logical channel that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the second condition is that the terminal device has a first uplink authorization and there is a third parameter corresponding to the identifier of the first logical channel.

[0232] The fifth condition is that the terminal device has the above-mentioned second uplink authorization, and there is a sixth parameter corresponding to the identifier of the first logical channel, but the second uplink authorization does not satisfy the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel. For the relevant description of the second uplink authorization not satisfying the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel, please refer to Section 5.4.3.1 of 3GPP TS 38.321 for the description of the uplink authorization not satisfying the restriction of the LCP mapping configured for the uplink logical channel, which will not be repeated here.

[0233] Subcase 4: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) include the following seventh parameter:

[0234] A seventh parameter is used to indicate whether the first logical channel is allowed to trigger an SR when there is a second uplink grant, where the second uplink grant is an uplink grant for new data transmission. For example, the seventh parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0235] Of course, this can also be achieved by configuring the seventh parameter to indicate that the first logical channel is allowed to trigger SR when there is a second uplink authorization, and not configuring the seventh parameter to indicate that the first logical channel is not allowed to trigger SR when there is a second uplink authorization. No specific limitation is made here.

[0236] Optionally, only for a sidelink logical channel configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the seventh parameter for the sidelink logical channel.

[0237] Alternatively, optionally, the base station will configure the above-mentioned seventh parameter for the sidelink logical channel only when it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel for unicast transmission and / or multicast transmission.

[0238] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel using a scheduling-based resource allocation method can refer to the above sub-case 1 and will not be repeated here.

[0239] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) also include one or more of parameter a, parameter b, or parameter c. The relevant description of parameter a, parameter b, or parameter c can refer to the above sub-case 1 and will not be repeated here.

[0240] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0241] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0242] The sixth condition is that the terminal device has a second uplink authorization and there is a seventh parameter corresponding to the identifier of the first logical channel, and the value of the seventh parameter indicates that the first logical channel is allowed to trigger SR when there is a second uplink authorization; in other words, the sixth condition is that the terminal device has a second uplink authorization, and the first regular SLBSR is not triggered by data transmission on the sidelink logical channel that is configured with the above-mentioned seventh parameter and the value of the seventh parameter indicates that SR cannot be triggered when there is a second uplink authorization; in other words, the sixth condition is that the terminal device has a second uplink authorization and there is a seventh parameter corresponding to the identifier of the first logical channel.

[0243] Subcase 5: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) include the following eighth parameter:

[0244] An eighth parameter, the eighth parameter is a first time threshold.

[0245] Optionally, only for a sidelink logical channel that is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the above-mentioned eighth parameter for the sidelink logical channel.

[0246] Alternatively, optionally, the base station will configure the above-mentioned eighth parameter for the side link logical channel only when it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a side link logical channel for unicast transmission and / or multicast transmission.

[0247] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel using a scheduling-based resource allocation method can refer to the above sub-case 1 and will not be repeated here.

[0248] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel) also include one or more of parameter a, parameter b, or parameter c. The relevant description of parameter a, parameter b, or parameter c can refer to the above sub-case 1 and will not be repeated here.

[0249] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SLBSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0250] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0251] The seventh condition is that the terminal device has a second uplink authorization and there is an eighth parameter corresponding to the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC protocol data unit (PDU) transmission containing the SLBSRMAC CE and the corresponding MAC subheader (MAC subheader).

[0252] Case b: The first identifier is the identifier of the logical channel group, that is, the base station configures the parameters associated with each logical channel group for controlling SR triggering for the terminal device. The logical channel group here can be one or more, and the following example uses any one logical channel group as an example for explanation.

[0253] In case b, optionally, the first message may also include a mapping relationship between the identifier of the logical channel group and the identifier of the logical channel included in the logical channel group, or, in other words, the first message may also include the identifier of the logical channel that has a mapping relationship with the identifier of the logical channel group.

[0254] Exemplarily, the base station configures a logical channel group configuration for the terminal device, wherein the configuration of the logical channel group includes at least: an identifier of the logical channels included in the logical channel group. Optionally, the configuration of the logical channel group may also include the identifier of the logical channel group.

[0255] Alternatively, illustratively, the base station configures the identifier of the logical channel mapped to the identifier of the logical channel group for the terminal device.

[0256] This situation b may include the following five sub-situations:

[0257] Subcase 6: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) include at least one of the following parameters:

[0258] A ninth parameter is used to indicate a list of sidelink subcarrier spacings to which the SLMAC SDUs of the logical channels of the sidelink radio bearers included in the logical channel group can be mapped. Of course, if the base station does not configure the ninth parameter for the logical channel group, the SLMAC SDUs of the logical channels in the logical channel group can be mapped to any sidelink configured / available subcarrier spacing.

[0259] The tenth parameter is used to indicate the maximum duration of the PSSCH grant for transmitting the SLMAC SDU of the logical channel of the sidelink radio bearer included in the logical channel group. Of course, if the base station does not configure the tenth parameter for the logical channel group, then PSSCH of any duration can be used to transmit the SLMAC SDU of the logical channel of the sidelink radio bearer included in the logical channel group.

[0260] The eleventh parameter is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger an SR when there is a first uplink grant, and the first uplink grant is a configured uplink grant. For example, the eleventh parameter is represented by one bit, a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0261] Of course, this can also be achieved by configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and not configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0262] Optionally, only for a sidelink logical channel group configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure one or more of the above-mentioned ninth parameter, tenth parameter or eleventh parameter for the sidelink logical channel group.

[0263] Alternatively, optionally, the base station will configure one or more of the above-mentioned ninth parameter, tenth parameter or eleventh parameter for the sidelink logical channel group only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel group for unicast transmission and / or multicast transmission.

[0264] Optionally, in an embodiment of the present application, configuring the sidelink logical channel group to adopt a scheduling-based resource allocation method includes the following two methods:

[0265] Method 1: The base station configures whether to use the scheduling-based resource allocation method for the terminal device. If the base station configures the terminal device to use the scheduling-based resource allocation method, it means that all sidelink logical channel groups of the terminal device use the scheduling-based resource allocation method.

[0266] Method 2: The base station configures each sidelink logical channel group of the terminal device whether to adopt a scheduling-based resource allocation method.

[0267] Optionally, in the embodiment of the present application, the one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) further include one or more of the following parameters:

[0268] Parameter d, which is at least one priority mapped to the logical channel group. This priority can be the prose per-packet priority (PPPP) of the V2X service packet, or the priority in the 5QI / VQI of the V2X service packet, or the priority in the 5QI / VQI corresponding to the QoS flow mapped to the V2X service. Based on parameter d, the terminal device can determine the logical channel group to which the logical channel to which a V2X service packet of a certain priority or a V2X service QoS flow is mapped belongs.

[0269] Parameter e, which is at least one QoS-related index mapped to the logical channel group. The QoS-related index can be, for example, 5QI, V2X / V2V QoS identifier (VQI), or QFI. The terminal device determines the QoS flow of the V2X service associated with the index or the sidelink radio bearer mapped to the V2X service packet associated with the index based on the QoS-related index and the QoS parameters indicated by the index. Based on the parameter e, the terminal device can determine the logical channel group to which the logical channel of the sidelink radio bearer belongs.

[0270] The above parameters may be included in the configuration of the logical channel group.

[0271] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0272] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0273] The eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization. In other words, the eighth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel in the sidelink logical channel group that is configured with the above-mentioned eleventh parameter and the value of the eleventh parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs.

[0274] A ninth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0275] Condition e, where the condition e is that a ninth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the ninth parameter;

[0276] Condition f: The condition f is that the tenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs exists, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the tenth parameter.

[0277] Subcase 7: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) include at least one of the following parameters:

[0278] The twelfth parameter is used to indicate a list of uplink subcarrier spacings mapped to the logical channels of the sidelink radio bearers included in the logical channel group. Of course, if the base station does not configure the twelfth parameter for the logical channel group, the uplink subcarrier spacing mapped to the logical channels included in the logical channel group includes any uplink configured / available subcarrier spacing.

[0279] The thirteenth parameter is used to indicate the maximum duration of the uplink grant mapped to the logical channel of the sidelink radio bearer included in the logical channel group. Of course, if the base station does not configure the thirteenth parameter for the logical channel group, the duration of the uplink resource / grant mapped to the logical channel included in the logical channel group can be any value.

[0280] The eleventh parameter is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger an SR when there is a first uplink grant, and the first uplink grant is a configured uplink grant. For example, the eleventh parameter is represented by one bit, a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0281] Of course, this can also be achieved by configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and not configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0282] Optionally, only for a sidelink logical channel group configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure one or more of the above-mentioned twelfth parameter, thirteenth parameter or eleventh parameter for the sidelink logical channel group.

[0283] Alternatively, optionally, the base station will configure one or more of the above-mentioned twelfth parameter, thirteenth parameter or eleventh parameter for the sidelink logical channel group only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel group for unicast transmission and / or multicast transmission.

[0284] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel group using a scheduling-based resource allocation method can refer to the above sub-case 6, which will not be repeated here.

[0285] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) also include one or more parameters d or parameters e. The relevant description of parameter d or parameter e can refer to the above sub-case 6 and will not be repeated here.

[0286] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0287] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0288] The eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization. In other words, the eighth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel in the sidelink logical channel group that is configured with the above-mentioned eleventh parameter and the value of the eleventh parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs.

[0289] The tenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0290] Condition g, where a twelfth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the twelfth parameter;

[0291] Condition h: The condition h is that there is a thirteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the thirteenth parameter.

[0292] Subcase 8: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) include at least one of the following parameters:

[0293] The fourteenth parameter is used to indicate the identifier of the logical channel of the uplink radio bearer to which the logical channel of the sidelink radio bearer contained in the logical channel group is mapped. The configuration of the logical channel of the uplink radio bearer includes one or more of the following parameters for the LCP process:

[0294] A list of subcarrier spacings to which the uplink MAC SDUs of the logical channels of the uplink radio bearer can be mapped;

[0295] The maximum PUSCH duration of the uplink grant that can be used by the uplink MAC SDU of the logical channel of the uplink radio bearer;

[0296] Whether the uplink MAC SDU of the logical channel of the uplink radio bearer can be authorized using Type 1 configuration;

[0297] A list of serving cells to which the uplink MAC SDU of the logical channel of the uplink radio bearer can be mapped.

[0298] The eleventh parameter is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger an SR when there is a first uplink grant, and the first uplink grant is a configured uplink grant. For example, the eleventh parameter is represented by one bit, a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0299] Of course, this can also be achieved by configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger SR when there is a first uplink authorization, and not configuring the eleventh parameter to indicate that the logical channel of the sidelink radio bearer included in the logical channel group is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0300] Optionally, only for a sidelink logical channel group configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure one or more of the above-mentioned fourteenth parameter or eleventh parameter for the sidelink logical channel group.

[0301] Alternatively, optionally, the base station will configure one or more of the above-mentioned fourteenth parameter or eleventh parameter for the sidelink logical channel group only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel group for unicast transmission and / or multicast transmission.

[0302] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel group using a scheduling-based resource allocation method can refer to the above sub-case 6, which will not be repeated here.

[0303] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) also include one or more parameters d or parameters e. The relevant description of parameter d or parameter e can refer to the above sub-case 6 and will not be repeated here.

[0304] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0305] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0306] The eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the eleventh parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a first uplink authorization. In other words, the eighth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel in the sidelink logical channel group that is configured with the above-mentioned eleventh parameter and the value of the eleventh parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the eighth condition is that the terminal device has a first uplink authorization, and there is an eleventh parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs.

[0307] The eleventh condition is that the terminal device has a second uplink authorization, and there is a fourteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, but the second uplink authorization does not satisfy the restriction of the LCP mapping configured for the logical channel of the uplink radio bearer mapped by the logical channel group to which the first logical channel belongs. For the relevant description of the second uplink authorization not satisfying the restriction of the LCP mapping configured for the logical channel of the uplink radio bearer mapped by the logical channel group to which the first logical channel belongs, please refer to section 5.4.3.1 of 3GPP TS 38.321 for the description of the uplink authorization not satisfying the restriction of the LCP mapping configured for the uplink logical channel, which will not be repeated here.

[0308] Subcase 9: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) include the following fifteenth parameter:

[0309] The fifteenth parameter is used to indicate whether the logical channel of the sidelink radio bearer included in the logical channel group is allowed to trigger an SR when there is a second uplink grant, where the second uplink grant is an uplink grant for new data transmission. For example, the fifteenth parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0310] Of course, this can also be achieved by configuring the fifteenth parameter to represent that the logical channel of the side link radio bearer contained in the logical channel group is allowed to trigger SR when there is a second uplink authorization, and not configuring the fifteenth parameter to represent that the logical channel of the side link radio bearer contained in the logical channel group is not allowed to trigger SR when there is a second uplink authorization. No specific limitation is made here.

[0311] Optionally, only for a sidelink logical channel group that is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the above-mentioned fifteenth parameter for the sidelink logical channel group.

[0312] Alternatively, optionally, the base station will configure the above-mentioned fifteenth parameter for the sidelink logical channel group only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel group for unicast transmission and / or multicast transmission.

[0313] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel group using a scheduling-based resource allocation method can refer to the above sub-case 6, which will not be repeated here.

[0314] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) also include one or more parameters d or parameters e. The relevant description of parameter d or parameter e can refer to the above sub-case 6 and will not be repeated here.

[0315] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0316] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0317] The twelfth condition is that the terminal device has a second uplink authorization, and there is a fifteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the fifteenth parameter indicates that the logical channel of the sidelink radio bearer contained in the logical channel group is allowed to trigger SR when there is a second uplink authorization. In other words, the twelfth condition is that the terminal device has a second uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel in the sidelink logical channel group that is configured with the above-mentioned fifteenth parameter and the value of the fifteenth parameter indicates that SR cannot be triggered when there is a second uplink authorization; in other words, the twelfth condition is that the terminal device has a second uplink authorization, and there is a fifteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs.

[0318] Subcase 10: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) include the following sixteenth parameter:

[0319] A sixteenth parameter is a second time threshold.

[0320] Optionally, only for a sidelink logical channel group that is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the above-mentioned sixteenth parameter for the sidelink logical channel group.

[0321] Alternatively, optionally, the base station will configure the above-mentioned sixteenth parameter for the sidelink logical channel group only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink logical channel group for unicast transmission and / or multicast transmission.

[0322] Optionally, in an embodiment of the present application, the configuration of the sidelink logical channel group using a scheduling-based resource allocation method can refer to the above sub-case 6, which will not be repeated here.

[0323] Optionally, in an embodiment of the present application, one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the logical channel group) also include one or more parameters d or parameters e. The relevant description of parameter d or parameter e can refer to the above sub-case 6 and will not be repeated here.

[0324] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0325] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0326] The thirteenth condition is that the terminal device has a second uplink authorization, and there is a sixteenth parameter corresponding to the identifier of the logical channel group to which the first logical channel belongs, and the value of the sixteenth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE and the corresponding MAC subheader.

[0327] Case c: The first identifier is the identifier of the sidelink radio bearer, that is, the base station configures the parameters associated with the sidelink radio bearer for the terminal device for controlling SR triggering. The sidelink radio bearer here can be one or more, and the following example uses any one sidelink radio bearer as an example for explanation.

[0328] In case c, optionally, the first message may also include a mapping relationship between the identifier of the sidelink radio bearer and the identifier of the logical channel of the sidelink radio bearer, or, in other words, the first message may also include the identifier of the logical channel of the sidelink radio bearer that has a mapping relationship with the identifier of the sidelink radio bearer.

[0329] Exemplarily, the base station configures the identifier of the logical channel of the sidelink radio bearer mapped to the identifier of the sidelink radio bearer for the terminal device.

[0330] This situation c may include the following five sub-situations:

[0331] Subcase 11: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the sidelink radio bearer) include at least one of the following parameters:

[0332] A first parameter is used to indicate a list of sidelink subcarrier spacings to which the SLMAC SDUs from the logical channels of the sidelink radio bearer can be mapped. Of course, if the base station does not configure the first parameter for the sidelink radio bearer, the SLMAC SDUs from the logical channels of the sidelink radio bearer can be mapped to any sidelink configured / available subcarrier spacing.

[0333] The second parameter is used to indicate the maximum duration of the PSSCH grant for transmitting the SLMAC SDU of the logical channel from the sidelink radio bearer. Of course, if the base station does not configure the second parameter for the sidelink radio bearer, then PSSCH of any duration can be used to transmit the SLMAC SDU of the logical channel from the sidelink radio bearer.

[0334] A third parameter is used to indicate whether the logical channel of the sidelink radio bearer is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0335] Of course, this can also be achieved by configuring a third parameter to represent that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization, and not configuring a third parameter to represent that the logical channel of the sidelink radio bearer is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0336] Optionally, only for a sidelink radio bearer configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the sidelink radio bearer.

[0337] Alternatively, optionally, the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the sidelink radio bearer only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink radio bearer for unicast transmission and / or multicast transmission.

[0338] Optionally, in an embodiment of the present application, configuring the sidelink radio bearer to adopt a scheduling-based resource allocation method includes the following two methods:

[0339] Method 1: The base station configures whether to use the scheduling-based resource allocation method for the terminal device. If the base station configures the terminal device to use the scheduling-based resource allocation method, it means that all sidelink radio bearers of the terminal device use the scheduling-based resource allocation method.

[0340] Method 2: Whether the base station configures each sidelink radio bearer of the terminal device to adopt a scheduling-based resource allocation method.

[0341] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0342] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0343] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel.

[0344] The fifteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0345] Condition i, where the condition i is that a first parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the first parameter;

[0346] Condition j: Condition j is that there is a second parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the second parameter.

[0347] Subcase 12: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the sidelink radio bearer) include at least one of the following parameters:

[0348] A fourth parameter is used to indicate a list of uplink subcarrier spacings to which the logical channels of the sidelink radio bearer are mapped. Of course, if the base station does not configure the fourth parameter for the sidelink radio bearer, the logical channels of the sidelink radio bearer can be mapped to any uplink configured / available subcarrier spacing.

[0349] A fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the logical channel of the sidelink radio bearer. Of course, if the base station does not configure the fifth parameter for the sidelink radio bearer, the duration of the uplink grant mapped to the logical channel of the sidelink radio bearer can be any value.

[0350] A third parameter is used to indicate whether the logical channel of the sidelink radio bearer is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0351] Of course, this can also be achieved by configuring a third parameter to represent that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization, and not configuring a third parameter to represent that the logical channel of the sidelink radio bearer is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0352] Optionally, only for a sidelink radio bearer configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned fourth parameter, fifth parameter or third parameter for the sidelink radio bearer.

[0353] Alternatively, optionally, the base station will configure at least one of the fourth parameter, fifth parameter or third parameter for the sidelink radio bearer only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink radio bearer for unicast transmission and / or multicast transmission.

[0354] Optionally, in an embodiment of the present application, configuration of the sidelink radio bearer using a scheduling-based resource allocation method can refer to the above sub-case 11, which will not be repeated here.

[0355] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0356] The first condition is that the terminal device does not have a second uplink authorization, and the second uplink authorization is an uplink authorization for new data transmission (that is, an identifier of a sidelink radio bearer).

[0357] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel.

[0358] The sixteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0359] Condition m, where the condition m is that a fourth parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter;

[0360] Condition n: The condition n is that there is a fifth parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter.

[0361] Subcase 13: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the sidelink radio bearer) include at least one of the following parameters:

[0362] A sixth parameter is used to indicate the identifier of the second logical channel to which the logical channel of the sidelink radio bearer is mapped, where the second logical channel is the logical channel of the uplink radio bearer; the configuration of the logical channel of the uplink radio bearer includes one or more of the following parameters for the LCP process:

[0363] A list of subcarrier spacings to which the uplink MAC SDUs of the logical channels of the uplink radio bearer can be mapped;

[0364] The maximum PUSCH duration of the uplink grant that can be used by the uplink MAC SDU of the logical channel of the uplink radio bearer;

[0365] Whether the uplink MAC SDU of the logical channel of the uplink radio bearer can be authorized using Type 1 configuration;

[0366] A list of serving cells to which the uplink MAC SDU of the logical channel of the uplink radio bearer can be mapped.

[0367] A third parameter is used to indicate whether the logical channel of the sidelink radio bearer is allowed to trigger an SR when there is a first uplink grant, where the first uplink grant is a configured uplink grant. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0368] Of course, this can also be achieved by configuring a third parameter to represent that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization, and not configuring a third parameter to represent that the logical channel of the sidelink radio bearer is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0369] Optionally, only for a sidelink radio bearer configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned sixth parameter or third parameter for the sidelink radio bearer.

[0370] Alternatively, optionally, the base station will configure at least one of the above-mentioned sixth parameter or third parameter for the sidelink radio bearer only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink radio bearer for unicast transmission and / or multicast transmission.

[0371] Optionally, in an embodiment of the present application, configuration of the sidelink radio bearer using a scheduling-based resource allocation method can refer to the above sub-case 11, which will not be repeated here.

[0372] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0373] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0374] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel.

[0375] The seventeenth condition is that the terminal device has a second uplink authorization, and there is a sixth parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, but the second uplink authorization does not satisfy the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel. For the relevant description of the second uplink authorization not satisfying the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel, please refer to section 5.4.3.1 of 3GPP TS 38.321 for the description of the uplink authorization not satisfying the restriction of the LCP mapping configured for the uplink logical channel, which will not be repeated here.

[0376] Subcase 14: The one or more configuration parameters corresponding to the first identifier include the following seventh parameter:

[0377] A seventh parameter is used to indicate whether the logical channel of the sidelink radio bearer is allowed to trigger an SR when there is a second uplink grant, where the second uplink grant is an uplink grant for new data transmission. For example, the seventh parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0378] Of course, this can also be achieved by configuring the seventh parameter to represent that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a second uplink authorization, and not configuring the seventh parameter to represent that the logical channel of the sidelink radio bearer is not allowed to trigger SR when there is a second uplink authorization. No specific limitation is made here.

[0379] Optionally, only for a sidelink radio bearer configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the seventh parameter for the sidelink radio bearer.

[0380] Alternatively, optionally, the base station will configure the above-mentioned seventh parameter for the sidelink radio bearer only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink radio bearer for unicast transmission and / or multicast transmission.

[0381] Optionally, in an embodiment of the present application, configuration of the sidelink radio bearer using a scheduling-based resource allocation method can refer to the above sub-case 11, which will not be repeated here.

[0382] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0383] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0384] The eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, and the value of the seventh parameter indicates that the logical channel of the sidelink radio bearer is allowed to trigger SR when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned seventh parameter and the value of the seventh parameter indicates that SR cannot be triggered when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel.

[0385] Subcase 15: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the sidelink radio bearer) include the following eighth parameter:

[0386] An eighth parameter, the eighth parameter is a first time threshold.

[0387] Optionally, only for a sidelink radio bearer configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the above-mentioned eighth parameter for the sidelink radio bearer.

[0388] Alternatively, optionally, the base station will configure the above-mentioned eighth parameter for the sidelink radio bearer only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a sidelink radio bearer for unicast transmission and / or multicast transmission.

[0389] Optionally, in an embodiment of the present application, configuration of the sidelink radio bearer using a scheduling-based resource allocation method can refer to the above sub-case 11, which will not be repeated here.

[0390] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0391] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0392] The nineteenth condition is that the terminal device has a second uplink authorization, and there is an eighth parameter corresponding to the identifier of the sidelink radio bearer associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE and the corresponding MAC subheader.

[0393] Case d: The first identifier is the identifier of the QoS flow, that is, the base station configures the parameters associated with the QoS flow for controlling SR triggering for the terminal device. There can be one or more QoS flows here, and the following example uses any one QoS flow as an example. According to the identifier of the QoS flow and the QoS parameters indicated / corresponding to the identifier of the QoS flow, the terminal device can determine the sidelink radio bearer mapped by the QoS flow. The identifier of the QoS flow corresponds to several QoS parameters, including but not limited to the guaranteed transmission rate, the maximum transmission rate, the delay requirement, the reliability requirement, the priority, and the communication distance.

[0394] In this case d, optionally, the first message may also include a mapping relationship between the identifier of the QoS flow and the identifier of the sidelink radio bearer, or, in other words, the first message may also include the identifier of the sidelink radio bearer that has a mapping relationship with the identifier of the QoS flow.

[0395] Exemplarily, the base station configures a sidelink radio bearer configuration for the terminal device. The sidelink radio bearer configuration includes at least: an identifier of a QoS flow mapped to the sidelink radio bearer and an identifier of a logical channel of the sidelink radio bearer. Optionally, the sidelink radio bearer configuration may also include an identifier of the sidelink radio bearer.

[0396] Alternatively, illustratively, the base station configures the identifier of the sidelink radio bearer mapped to the identifier of the QoS flow for the terminal device, and configures the configuration of the sidelink radio bearer for the terminal device; the configuration of the sidelink radio bearer includes at least: the identifier of the logical channel of the sidelink radio bearer. Optionally, the configuration of the sidelink radio bearer may also include the identifier of the sidelink radio bearer.

[0397] This situation d may include the following five sub-situations:

[0398] Subcase 16: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the QoS flow) include at least one of the following parameters:

[0399] A first parameter is used to indicate a list of sidelink subcarrier intervals to which the SLMAC SDU of the logical channel of the sidelink radio bearer to which the identifier of the QoS flow is mapped can be mapped. Of course, if the base station does not configure the first parameter for the sidelink radio bearer, the SLMAC SDU of the logical channel of the sidelink radio bearer to which the identifier of the QoS flow is mapped can be mapped to any sidelink configured / available subcarrier interval.

[0400] The second parameter is used to indicate the maximum duration of the PSSCH authorization for transmitting the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow. Of course, if the base station does not configure the second parameter for the sidelink radio bearer mapped by the identifier of the QoS flow, then a PSSCH of any duration can be used to transmit the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow.

[0401] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0402] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0403] Optionally, only for a QoS flow configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the QoS flow.

[0404] Alternatively, optionally, the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the QoS flow only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a QoS flow for unicast transmission and / or multicast transmission.

[0405] Optionally, in the embodiment of the present application, configuring QoS flows using scheduling-based resource allocation methods includes the following two:

[0406] Method 1: The base station configures whether to use the scheduling-based resource allocation method for the terminal device. If the base station configures the terminal device to use the scheduling-based resource allocation method, it means that all QoS flows of the terminal device use the scheduling-based resource allocation method.

[0407] Method 2: The base station configures each QoS flow of the terminal device to use a scheduling-based resource allocation method.

[0408] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0409] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0410] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel.

[0411] The fifteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0412] Condition i, where the condition i is that a first parameter corresponding to the identifier of the QoS flow associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the first parameter;

[0413] Condition j: The condition j is that there is a second parameter corresponding to the identifier of the QoS flow associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the second parameter.

[0414] Subcase 17: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the QoS flow) include at least one of the following parameters:

[0415] A fourth parameter is used to indicate a list of uplink subcarrier spacings to which the logical channel of the sidelink radio bearer to which the identifier of the QoS flow is mapped is mapped. Of course, if the base station does not configure the fourth parameter for the sidelink radio bearer, the logical channel of the sidelink radio bearer to which the identifier of the QoS flow is mapped can be mapped to any uplink configured / available subcarrier spacing.

[0416] A fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the logical channel of the sidelink radio bearer mapped to the identifier of the QoS flow. Of course, if the base station does not configure the fifth parameter for the sidelink radio bearer mapped to the identifier of the QoS flow, the duration of the uplink grant mapped to the logical channel of the sidelink radio bearer mapped to the identifier of the QoS flow can be any value.

[0417] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0418] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0419] Optionally, only for a QoS flow configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure at least one of the fourth parameter, the fifth parameter or the third parameter for the QoS flow.

[0420] Alternatively, optionally, the base station will configure at least one of the above-mentioned fourth parameter, fifth parameter or third parameter for the QoS flow only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a QoS flow for unicast transmission and / or multicast transmission.

[0421] Optionally, in an embodiment of the present application, configuration of QoS flow using a scheduling-based resource allocation method can refer to the above sub-case 16, which will not be repeated here.

[0422] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0423] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0424] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel.

[0425] The sixteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0426] Condition m, where the condition m is that a fourth parameter corresponding to the identifier of the QoS flow associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter;

[0427] Condition n: The condition n is that there is a fifth parameter corresponding to the identifier of the QoS flow associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter.

[0428] Subcase 18: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the QoS flow) include at least one of the following parameters:

[0429] A sixth parameter, the sixth parameter being used to indicate the identifier of the second logical channel mapped to the logical channel of the sidelink radio bearer mapped to the identifier of the QoS flow, where the second logical channel is the logical channel of the uplink radio bearer; the configuration of the logical channel of the uplink radio bearer includes one or more of the following parameters for the LCP process:

[0430] A list of subcarrier spacings to which the uplink MAC SDUs of the logical channels of the uplink radio bearer can be mapped;

[0431] The maximum PUSCH duration of the uplink grant that can be used by the uplink MAC SDU of the logical channel of the uplink radio bearer;

[0432] Whether the uplink MAC SDU of the logical channel of the uplink radio bearer can be authorized using Type 1 configuration;

[0433] A list of serving cells to which the uplink MAC SDU of the logical channel of the uplink radio bearer can be mapped.

[0434] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0435] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0436] Optionally, only for a QoS flow configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure at least one of the sixth parameter or the third parameter for the QoS flow.

[0437] Alternatively, optionally, the base station will configure at least one of the above-mentioned sixth parameter or third parameter for the QoS flow only if it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to a QoS flow for unicast transmission and / or multicast transmission.

[0438] Optionally, in an embodiment of the present application, configuration of QoS flow using a scheduling-based resource allocation method can refer to the above sub-case 16, which will not be repeated here.

[0439] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0440] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0441] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel of the sidelink radio bearer that is configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the identifier of the QoS flow associated with the first logical channel.

[0442] The seventeenth condition is that the terminal device has a second uplink authorization, and there is a sixth parameter corresponding to the identifier of the QoS flow associated with the first logical channel, but the second uplink authorization does not satisfy the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel. For the relevant description of the second uplink authorization not satisfying the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel, please refer to the 5.4.3.1 section of 3GPP TS38.321 for the description of the uplink authorization not satisfying the restriction of the LCP mapping configured for the uplink logical channel, which will not be repeated here.

[0443] Subcase 19: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the QoS flow) include the following seventh parameter:

[0444] The seventh parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger an SR when there is a second uplink grant, where the second uplink grant is an uplink grant for new data transmission. For example, the seventh parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0445] Of course, this can also be achieved by configuring the seventh parameter to represent the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow to allow triggering SR when there is a second uplink authorization, and not configuring the seventh parameter to represent the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow to not allow triggering SR when there is a second uplink authorization. No specific limitation is made here.

[0446] Optionally, only for a QoS flow configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the seventh parameter for the QoS flow.

[0447] Alternatively, optionally, the base station configures the seventh parameter for the QoS flow only if it is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1) and is mapped to a QoS flow for unicast transmission and / or multicast transmission.

[0448] Optionally, in an embodiment of the present application, configuration of QoS flow using a scheduling-based resource allocation method can refer to the above sub-case 16, which will not be repeated here.

[0449] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0450] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0451] The eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the identifier of the QoS flow associated with the first logical channel, and the value of the seventh parameter indicates that the logical channel of the sidelink radio bearer mapped by the identifier of the QoS flow is allowed to trigger SR when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a first uplink authorization, and the first regular SL BSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned seventh parameter and the value of the seventh parameter indicates that SR cannot be triggered when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the identifier of the QoS flow associated with the first logical channel.

[0452] Subcase 20: The one or more configuration parameters corresponding to the first identifier (i.e., the identifier of the QoS flow) include the following eighth parameter:

[0453] An eighth parameter, the eighth parameter is a first time threshold.

[0454] Optionally, only for a QoS flow configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the eighth parameter for the QoS flow.

[0455] Alternatively, optionally, the base station configures the eighth parameter for the QoS flow only if it is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1) and is mapped to a QoS flow for unicast transmission and / or multicast transmission.

[0456] Optionally, in an embodiment of the present application, configuration of QoS flow using a scheduling-based resource allocation method can refer to the above sub-case 16, which will not be repeated here.

[0457] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0458] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0459] The nineteenth condition is that the terminal device has a second uplink authorization, and there is an eighth parameter corresponding to the identifier of the QoS flow associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SL BSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SL BSR MAC CE and the corresponding MAC subheader.

[0460] Case e: The first identifier is the QoS index of the QoS information, that is, the parameters used to control SR triggering associated with the QoS index of the QoS information configured by the base station for the terminal device. The QoS index of the QoS information here can be one or more, and the following example uses the QoS index of any QoS information as an example. According to the QoS index, and the QoS parameters indicated / corresponding to the QoS index, the terminal device can determine the side link radio bearer mapped by the QoS index. The QoS index corresponds to indicating several QoS parameters, including but not limited to the guaranteed transmission rate, the maximum transmission rate, the delay requirement, the reliability requirement, the priority or the communication distance, etc., which are not specifically limited here.

[0461] In this case e, optionally, the first message may also include a mapping relationship between the QoS index of the QoS information and the identifier of the sidelink radio bearer, or, in other words, the first message may also include the identifier of the sidelink radio bearer that has a mapping relationship with the QoS index of the QoS information.

[0462] Exemplarily, the base station configures a sidelink radio bearer configuration for the terminal device. The sidelink radio bearer configuration includes at least: a QoS index mapped to the QoS information of the sidelink radio bearer and an identifier of a logical channel of the sidelink radio bearer. Optionally, the sidelink radio bearer configuration may also include an identifier of the sidelink radio bearer.

[0463] Alternatively, illustratively, the base station configures the identifier of the sidelink radio bearer mapped by the QoS index of the QoS information for the terminal device, and configures the configuration of the sidelink radio bearer for the terminal device; the configuration of the sidelink radio bearer includes at least: an identifier of the logical channel of the sidelink radio bearer. Optionally, the configuration of the sidelink radio bearer may also include the identifier of the sidelink radio bearer.

[0464] This situation e may include the following five sub-situations:

[0465] Subcase 21: The one or more configuration parameters corresponding to the first identifier (i.e., the QoS index of the QoS information) include at least one of the following parameters:

[0466] A first parameter is used to indicate a list of sidelink subcarrier intervals to which the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information can be mapped. Of course, if the base station does not configure the first parameter for the sidelink radio bearer, the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information can be mapped to any sidelink configured / available subcarrier interval.

[0467] The second parameter is used to indicate the maximum duration of the PSSCH authorization for transmitting the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information. Of course, if the base station does not configure the second parameter for the sidelink radio bearer mapped by the QoS index of the QoS information, then a PSSCH of any duration can be used to transmit the SLMAC SDU of the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information.

[0468] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, and a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0469] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0470] Optionally, only when the QoS index of the QoS information is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned first parameter, second parameter or third parameter for the QoS index of the QoS information.

[0471] Alternatively, optionally, only when the base station is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to the QoS index of the QoS information for unicast transmission and / or multicast transmission, will it configure at least one of the above-mentioned first parameter, second parameter or third parameter for the QoS index of the QoS information.

[0472] Optionally, in an embodiment of the present application, the QoS index for configuring the QoS information adopts the following two scheduling-based resource allocation methods:

[0473] Method 1: The base station configures whether to use the scheduling-based resource allocation method for the terminal device. If the base station configures the terminal device to use the scheduling-based resource allocation method, it means that the QoS index of all QoS information of the terminal device uses the scheduling-based resource allocation method.

[0474] Method 2: Whether the QoS index configuration of each QoS information of the terminal device by the base station adopts a scheduling-based resource allocation method.

[0475] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0476] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0477] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel.

[0478] The fifteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0479] Condition i, where the condition i is that a first parameter corresponding to the QoS index of the QoS information associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the first parameter;

[0480] Condition j: The condition j is that there is a second parameter corresponding to the QoS index of the QoS information associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the second parameter.

[0481] Subcase 22: The one or more configuration parameters corresponding to the first identifier (i.e., the QoS index of the QoS information) include at least one of the following parameters:

[0482] A fourth parameter is used to indicate a list of uplink subcarrier spacings to which the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is mapped. Of course, if the base station does not configure the fourth parameter for the sidelink radio bearer, the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information can be mapped to any uplink configured / available subcarrier spacing.

[0483] A fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information. Of course, if the base station does not configure the fifth parameter for the sidelink radio bearer mapped by the QoS index of the QoS information, the duration of the uplink grant mapped to the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information can be any value.

[0484] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, and a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0485] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0486] Optionally, only when the QoS index of the QoS information is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1), the base station will configure at least one of the above-mentioned fourth parameter, fifth parameter or third parameter for the QoS index of the QoS information.

[0487] Alternatively, optionally, only when the base station is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to the QoS index of the QoS information for unicast transmission and / or multicast transmission, will it configure at least one of the above-mentioned fourth parameter, fifth parameter or third parameter for the QoS index of the QoS information.

[0488] Optionally, in an embodiment of the present application, the QoS index for configuring the QoS information adopts a scheduling-based resource allocation method, which can refer to the above sub-case 21 and will not be described in detail here.

[0489] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0490] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0491] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel.

[0492] The sixteenth condition is that the terminal device has a second uplink authorization, but the second uplink authorization does not meet any of the following conditions:

[0493] Condition m, where the condition m is that a fourth parameter corresponding to the QoS index of the QoS information associated with the first logical channel exists, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter;

[0494] Condition n: The condition n is that there is a fifth parameter corresponding to the QoS index of the QoS information associated with the first logical channel, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter.

[0495] Subcase 23: The one or more configuration parameters corresponding to the first identifier (i.e., the QoS index of the QoS information) include at least one of the following parameters:

[0496] A sixth parameter, which is used to indicate the identifier of the second logical channel mapped to the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information, where the second logical channel is the logical channel of the uplink radio bearer; the configuration of the logical channel of the uplink radio bearer includes one or more of the following parameters for the LCP process:

[0497] A list of subcarrier spacings to which the uplink MAC SDUs of the logical channels of the uplink radio bearer can be mapped;

[0498] The maximum PUSCH duration of the uplink grant that can be used by the uplink MAC SDU of the logical channel of the uplink radio bearer;

[0499] Whether the uplink MAC SDU of the logical channel of the uplink radio bearer can be authorized using Type 1 configuration;

[0500] A list of serving cells to which the uplink MAC SDU of the logical channel of the uplink radio bearer can be mapped.

[0501] The third parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger an SR when there is a first uplink authorization, and the first uplink authorization is a configured uplink authorization. For example, the third parameter is represented by one bit, and a bit value of "1" indicates that the triggering of the SR is allowed, and a bit value of "0" indicates that the triggering of the SR is not allowed; or a bit value of "0" indicates that the triggering of the SR is allowed, and a bit value of "1" indicates that the triggering of the SR is not allowed.

[0502] Of course, this can also be achieved by configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization, and not configuring the third parameter to represent that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is not allowed to trigger SR when there is a first uplink authorization. No specific limitation is made here.

[0503] Optionally, only when the QoS index of the QoS information is configured to adopt a scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure at least one of the sixth parameter or the third parameter for the QoS index of the QoS information.

[0504] Alternatively, optionally, only when the base station is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to the QoS index of the QoS information for unicast transmission and / or multicast transmission, will it configure at least one of the above-mentioned sixth parameter or third parameter for the QoS index of the QoS information.

[0505] Optionally, in an embodiment of the present application, the QoS index for configuring the QoS information adopts a scheduling-based resource allocation method, which can refer to the above sub-case 21 and will not be described in detail here.

[0506] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0507] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0508] The fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel, and the value of the third parameter indicates that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned third parameter and the value of the third parameter indicates that SR cannot be triggered when there is a first uplink authorization; in other words, the fourteenth condition is that the terminal device has a first uplink authorization, and there is a third parameter corresponding to the QoS index of the QoS information associated with the first logical channel.

[0509] The seventeenth condition is that the terminal device has a second uplink authorization, and there is a sixth parameter corresponding to the QoS index of the QoS information associated with the first logical channel, but the second uplink authorization does not satisfy the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel. For the relevant description of the second uplink authorization not satisfying the restriction of the LCP mapping configured for the second logical channel mapped by the first logical channel, please refer to section 5.4.3.1 of 3GPP TS 38.321 for the description of the uplink authorization not satisfying the restriction of the LCP mapping configured for the uplink logical channel, which will not be repeated here.

[0510] Subcase 24: The one or more configuration parameters corresponding to the first identifier (i.e., the QoS index of the QoS information) include the following seventh parameter:

[0511] The seventh parameter is used to indicate whether the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger an SR when there is a second uplink grant, where the second uplink grant is an uplink grant for new data transmission. For example, the seventh parameter is represented by one bit, where a bit value of "1" indicates that triggering an SR is allowed, and a bit value of "0" indicates that triggering an SR is not allowed; or, a bit value of "0" indicates that triggering an SR is allowed, and a bit value of "1" indicates that triggering an SR is not allowed.

[0512] Of course, this can also be achieved by configuring the seventh parameter to represent that the logical channel of the side link radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a second uplink authorization, and not configuring the seventh parameter to represent that the logical channel of the side link radio bearer mapped by the QoS index of the QoS information is not allowed to trigger SR when there is a second uplink authorization. No specific limitation is made here.

[0513] Optionally, only when the QoS index of the QoS information is configured to adopt the scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the seventh parameter for the QoS index of the QoS information.

[0514] Alternatively, optionally, the base station will configure the above-mentioned seventh parameter for the QoS index of the QoS information only when it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to the QoS index of the QoS information for unicast transmission and / or multicast transmission.

[0515] Optionally, in an embodiment of the present application, the QoS index for configuring the QoS information adopts a scheduling-based resource allocation method, which can refer to the above sub-case 21 and will not be described in detail here.

[0516] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0517] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0518] The eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the QoS index of the QoS information associated with the first logical channel, and the value of the seventh parameter indicates that the logical channel of the sidelink radio bearer mapped by the QoS index of the QoS information is allowed to trigger SR when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a first uplink authorization, and the first regular SLBSR is not triggered by data transmission on the logical channel of the sidelink radio bearer configured with the above-mentioned seventh parameter and the value of the seventh parameter indicates that SR cannot be triggered when there is a second uplink authorization; in other words, the eighteenth condition is that the terminal device has a second uplink authorization, and there is a seventh parameter corresponding to the QoS index of the QoS information associated with the first logical channel.

[0519] Subcase 25: The one or more configuration parameters corresponding to the first identifier (i.e., the QoS index of the QoS information) include the following eighth parameter:

[0520] An eighth parameter, the eighth parameter is a first time threshold.

[0521] Optionally, only when the QoS index of the QoS information is configured to adopt the scheduling-based resource allocation method (ie, resource allocation mode 1), the base station will configure the above-mentioned eighth parameter for the QoS index of the QoS information.

[0522] Alternatively, optionally, the base station will configure the above-mentioned eighth parameter for the QoS index of the QoS information only when it is configured to adopt a scheduling-based resource allocation method (i.e., resource allocation mode 1) and mapped to the QoS index of the QoS information for unicast transmission and / or multicast transmission.

[0523] Optionally, in an embodiment of the present application, the QoS index for configuring the QoS information adopts a scheduling-based resource allocation method, which can refer to the above sub-case 21 and will not be described in detail here.

[0524] On the terminal device side, if the first logical channel triggers the first SLBSR and the first SL BSR has not been canceled, the terminal device triggers the SR according to the first identifier and one or more configuration parameters corresponding to the first identifier when any of the following conditions is met:

[0525] The first condition is that the terminal device does not have a second uplink grant, and the second uplink grant is an uplink grant for new data transmission. Optionally, the second uplink grant may include a configured uplink grant and a dynamically scheduled uplink grant.

[0526] The nineteenth condition is that the terminal device has a second uplink authorization, and there is an eighth parameter corresponding to the QoS index of the QoS information associated with the first logical channel, and the value of the eighth parameter is less than the time interval between the moment when the first logical channel triggers the first regular SLBSR and the moment when the terminal device performs the next uplink MAC PDU transmission containing the SLBSR MAC CE and the corresponding MAC subheader.

[0527] The method for triggering SR provided in the embodiment of the present application can meet the QoS requirements of different services in the NRV2X system, and at the same time avoid or reduce unnecessary SR triggering.

[0528] The actions of the base station in steps S501 to S502 can be performed by Figure 3The processor 301 in the network device 30 shown in FIG. 3 calls the application code stored in the memory 302 to instruct the network device to execute. The actions of the terminal device in the above steps S501 to S502 can be performed by Figure 3 The processor 401 in the terminal device 40 shown calls the application code stored in the memory 402 to instruct the network device to execute, and this embodiment does not impose any limitation on this.

[0529] The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Accordingly, the embodiments of the present application also provide a communication device, which is used to implement the various methods described above. The communication device can be the terminal device in the above method embodiments, or a device that includes the above terminal device, or a component that can be used for the terminal device. It is understandable that in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to performing each function. Those skilled in the art should readily appreciate that, in combination with the units and algorithm steps of the various examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner where computer software drives hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0530] In the embodiment of the present application, the functional modules of the communication device can be divided according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0531] For example, take the communication device as the terminal device in the above method embodiment. Figure 6 Schematic diagram of the structure of a terminal device 60 is shown. The terminal device 60 includes a processing module 601 and a transceiver module 602. The transceiver module 602, also called a transceiver unit, is used to implement transceiver functions, and can be, for example, a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0532] Among them, the transceiver module 602 is used to receive a first message from the network device, and the first message includes a first identifier and one or more configuration parameters corresponding to the first identifier, wherein the first identifier is the identifier of the first logical channel, or the first identifier has a mapping relationship with the first logical channel, and the first logical channel is the logical channel of the side link radio bearer; the processing module 601 is used to trigger the SR of the terminal device according to the first identifier and one or more configuration parameters corresponding to the first identifier if the first logical channel triggers the first regular side link buffer status report SLBSR and has not been canceled.

[0533] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0534] In this embodiment, the terminal device 60 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can imagine that the terminal device 60 can be used Figure 2 The terminal device 40 is shown in the form.

[0535] for example, Figure 3 The processor 401 in the terminal device 40 shown can call the computer-executable instructions stored in the memory 402 to enable the terminal device 40 to execute the method for triggering SR in the above method embodiment.

[0536] Specifically, Figure 6 The functions / implementation processes of the processing module 601 and the transceiver module 602 can be Figure 3 The processor 401 in the terminal device 40 shown calls the computer execution instructions stored in the memory 402 to implement. Or, Figure 6 The function / implementation process of the processing module 601 can be achieved by Figure 3 The processor 401 in the terminal device 40 shown calls the computer execution instructions stored in the memory 402 to implement, Figure 6 The function / implementation process of the transceiver module 602 can be achieved by Figure 3 This is implemented by the transceiver 403 in the terminal device 40 shown in FIG.

[0537] Since the terminal device 60 provided in this embodiment can execute the above-mentioned method of triggering SR, the technical effects that can be obtained can refer to the above-mentioned method embodiment and will not be repeated here.

[0538] Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the method in any of the above method embodiments. In one possible design, the communication device also includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the above method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or it may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0539] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0540] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0541] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A method for triggering a scheduling request SR, characterized in that: The method comprises: The terminal device receives a first message from the network device, where the first message includes a first identifier and a configuration of a first logical channel, where the first identifier is an identifier of the first logical channel, or a mapping relationship exists between the first identifier and the first logical channel, the first logical channel is a logical channel of a sidelink radio bearer, and the configuration of the first logical channel includes a fourth parameter and / or a fifth parameter; If the first logical channel triggers a first regular sidelink buffer status report SL BSR and has not been cancelled, the terminal device triggers the SR when any one of the following conditions is met: The terminal device has a second uplink grant, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter, or; The terminal device has the second uplink grant, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter; The second uplink grant is an uplink grant for new data transmission, the fourth parameter is used to indicate a list of subcarrier spacings of the uplink grant mapped to the first logical channel; and the fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the first logical channel.

2. The method according to claim 1, characterized in that The configuration of the first logical channel further includes: the priority of the first logical channel; An identifier of the sidelink logical channel group to which the first logical channel belongs.

3. The method according to claim 1 or 2, characterized in that If there is a mapping relationship between the first identifier and the identifier of the first logical channel, the first message also includes or indicates the mapping relationship between the first identifier and the identifier of the first logical channel.

4. The method according to claim 1 or 2, characterized in that The first message further includes source information and destination information, wherein the first identifier is associated with the source information, and the first identifier is associated with the destination information.

5. A terminal device, characterized in that: The terminal device includes a receiving module and a processing module; The receiving module is configured to receive a first message from a network device, where the first message includes a first identifier and a configuration of a first logical channel, wherein the first identifier is an identifier of the first logical channel, or a mapping relationship exists between the first identifier and the first logical channel, the first logical channel is a logical channel of a sidelink radio bearer, and the configuration of the first logical channel includes a fourth parameter and / or a fifth parameter; The processing module is configured to trigger a first regular sidelink buffer status report SLBSR if the first logical channel triggers the SR and has not been cancelled, when any one of the following conditions is met: The terminal device has a second uplink grant, but the subcarrier spacing associated with the second uplink grant is not included in the value set of the fourth parameter, or; The terminal device has the second uplink grant, but the duration of the PUSCH associated with the second uplink grant is greater than the value of the fifth parameter; wherein the second uplink grant is an uplink grant for new data transmission, and the fourth parameter is used to indicate a list of subcarrier spacings of the uplink grant mapped to the first logical channel; the fifth parameter is used to indicate the maximum duration of the uplink grant mapped to the first logical channel.

6. The terminal device according to claim 5, characterized in that The configuration of the first logical channel further includes: the priority of the first logical channel; An identifier of the sidelink logical channel group to which the first logical channel belongs.

7. The terminal device according to claim 5 or 6, characterized in that: If there is a mapping relationship between the first identifier and the identifier of the first logical channel, the first message also includes or indicates the mapping relationship between the first identifier and the identifier of the first logical channel.

8. The terminal device according to claim 5 or 6, characterized in that: The first message further includes source information and destination information, wherein the first identifier is associated with the source information, and the first identifier is associated with the destination information.

9. A computer-readable storage medium, characterized in that The method comprises instructions which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 4.

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